Coverage Report

Created: 2026-01-10 06:40

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/miniz/build/amalgamation/miniz.c
Line
Count
Source
1
#include "miniz.h"
2
/**************************************************************************
3
 *
4
 * Copyright 2013-2014 RAD Game Tools and Valve Software
5
 * Copyright 2010-2014 Rich Geldreich and Tenacious Software LLC
6
 * All Rights Reserved.
7
 *
8
 * Permission is hereby granted, free of charge, to any person obtaining a copy
9
 * of this software and associated documentation files (the "Software"), to deal
10
 * in the Software without restriction, including without limitation the rights
11
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12
 * copies of the Software, and to permit persons to whom the Software is
13
 * furnished to do so, subject to the following conditions:
14
 *
15
 * The above copyright notice and this permission notice shall be included in
16
 * all copies or substantial portions of the Software.
17
 *
18
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24
 * THE SOFTWARE.
25
 *
26
 **************************************************************************/
27
28
29
30
typedef unsigned char mz_validate_uint16[sizeof(mz_uint16) == 2 ? 1 : -1];
31
typedef unsigned char mz_validate_uint32[sizeof(mz_uint32) == 4 ? 1 : -1];
32
typedef unsigned char mz_validate_uint64[sizeof(mz_uint64) == 8 ? 1 : -1];
33
34
#ifdef __cplusplus
35
extern "C"
36
{
37
#endif
38
39
    /* ------------------- zlib-style API's */
40
41
    mz_ulong mz_adler32(mz_ulong adler, const unsigned char *ptr, size_t buf_len)
42
194M
    {
43
194M
        mz_uint32 i, s1 = (mz_uint32)(adler & 0xffff), s2 = (mz_uint32)(adler >> 16);
44
194M
        size_t block_len = buf_len % 5552;
45
194M
        if (!ptr)
46
105
            return MZ_ADLER32_INIT;
47
388M
        while (buf_len)
48
194M
        {
49
329M
            for (i = 0; i + 7 < block_len; i += 8, ptr += 8)
50
135M
            {
51
135M
                s1 += ptr[0], s2 += s1;
52
135M
                s1 += ptr[1], s2 += s1;
53
135M
                s1 += ptr[2], s2 += s1;
54
135M
                s1 += ptr[3], s2 += s1;
55
135M
                s1 += ptr[4], s2 += s1;
56
135M
                s1 += ptr[5], s2 += s1;
57
135M
                s1 += ptr[6], s2 += s1;
58
135M
                s1 += ptr[7], s2 += s1;
59
135M
            }
60
388M
            for (; i < block_len; ++i)
61
194M
                s1 += *ptr++, s2 += s1;
62
194M
            s1 %= 65521U, s2 %= 65521U;
63
194M
            buf_len -= block_len;
64
194M
            block_len = 5552;
65
194M
        }
66
194M
        return (s2 << 16) + s1;
67
194M
    }
68
69
/* Karl Malbrain's compact CRC-32. See "A compact CCITT crc16 and crc32 C implementation that balances processor cache usage against speed": http://www.geocities.com/malbrain/ */
70
#if 0
71
    mz_ulong mz_crc32(mz_ulong crc, const mz_uint8 *ptr, size_t buf_len)
72
    {
73
        static const mz_uint32 s_crc32[16] = { 0, 0x1db71064, 0x3b6e20c8, 0x26d930ac, 0x76dc4190, 0x6b6b51f4, 0x4db26158, 0x5005713c,
74
                                               0xedb88320, 0xf00f9344, 0xd6d6a3e8, 0xcb61b38c, 0x9b64c2b0, 0x86d3d2d4, 0xa00ae278, 0xbdbdf21c };
75
        mz_uint32 crcu32 = (mz_uint32)crc;
76
        if (!ptr)
77
            return MZ_CRC32_INIT;
78
        crcu32 = ~crcu32;
79
        while (buf_len--)
80
        {
81
            mz_uint8 b = *ptr++;
82
            crcu32 = (crcu32 >> 4) ^ s_crc32[(crcu32 & 0xF) ^ (b & 0xF)];
83
            crcu32 = (crcu32 >> 4) ^ s_crc32[(crcu32 & 0xF) ^ (b >> 4)];
84
        }
85
        return ~crcu32;
86
    }
87
#elif defined(USE_EXTERNAL_MZCRC)
88
/* If USE_EXTERNAL_CRC is defined, an external module will export the
89
 * mz_crc32() symbol for us to use, e.g. an SSE-accelerated version.
90
 * Depending on the impl, it may be necessary to ~ the input/output crc values.
91
 */
92
mz_ulong mz_crc32(mz_ulong crc, const mz_uint8 *ptr, size_t buf_len);
93
#else
94
/* Faster, but larger CPU cache footprint.
95
 */
96
mz_ulong mz_crc32(mz_ulong crc, const mz_uint8 *ptr, size_t buf_len)
97
11.5k
{
98
11.5k
    static const mz_uint32 s_crc_table[256] = {
99
11.5k
        0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F, 0xE963A535,
100
11.5k
        0x9E6495A3, 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, 0x09B64C2B, 0x7EB17CBD,
101
11.5k
        0xE7B82D07, 0x90BF1D91, 0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, 0x1ADAD47D,
102
11.5k
        0x6DDDE4EB, 0xF4D4B551, 0x83D385C7, 0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC,
103
11.5k
        0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5, 0x3B6E20C8, 0x4C69105E, 0xD56041E4,
104
11.5k
        0xA2677172, 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, 0x35B5A8FA, 0x42B2986C,
105
11.5k
        0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59, 0x26D930AC,
106
11.5k
        0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
107
11.5k
        0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, 0x2F6F7C87, 0x58684C11, 0xC1611DAB,
108
11.5k
        0xB6662D3D, 0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F,
109
11.5k
        0x9FBFE4A5, 0xE8B8D433, 0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB,
110
11.5k
        0x086D3D2D, 0x91646C97, 0xE6635C01, 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
111
11.5k
        0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, 0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA,
112
11.5k
        0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65, 0x4DB26158, 0x3AB551CE,
113
11.5k
        0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB, 0x4369E96A,
114
11.5k
        0x346ED9FC, 0xAD678846, 0xDA60B8D0, 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
115
11.5k
        0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409,
116
11.5k
        0xCE61E49F, 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81,
117
11.5k
        0xB7BD5C3B, 0xC0BA6CAD, 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, 0xEAD54739,
118
11.5k
        0x9DD277AF, 0x04DB2615, 0x73DC1683, 0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
119
11.5k
        0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1, 0xF00F9344, 0x8708A3D2, 0x1E01F268,
120
11.5k
        0x6906C2FE, 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7, 0xFED41B76, 0x89D32BE0,
121
11.5k
        0x10DA7A5A, 0x67DD4ACC, 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, 0xD6D6A3E8,
122
11.5k
        0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
123
11.5k
        0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF,
124
11.5k
        0x4669BE79, 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, 0xCC0C7795, 0xBB0B4703,
125
11.5k
        0x220216B9, 0x5505262F, 0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7,
126
11.5k
        0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D, 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
127
11.5k
        0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713, 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE,
128
11.5k
        0x0CB61B38, 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, 0x86D3D2D4, 0xF1D4E242,
129
11.5k
        0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777, 0x88085AE6,
130
11.5k
        0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
131
11.5k
        0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7, 0x4969474D,
132
11.5k
        0x3E6E77DB, 0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5,
133
11.5k
        0x47B2CF7F, 0x30B5FFE9, 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605,
134
11.5k
        0xCDD70693, 0x54DE5729, 0x23D967BF, 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
135
11.5k
        0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
136
11.5k
    };
137
138
11.5k
    mz_uint32 crc32 = (mz_uint32)crc ^ 0xFFFFFFFF;
139
11.5k
    const mz_uint8 *pByte_buf = (const mz_uint8 *)ptr;
140
141
97.4M
    while (buf_len >= 4)
142
97.4M
    {
143
97.4M
        crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[0]) & 0xFF];
144
97.4M
        crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[1]) & 0xFF];
145
97.4M
        crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[2]) & 0xFF];
146
97.4M
        crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[3]) & 0xFF];
147
97.4M
        pByte_buf += 4;
148
97.4M
        buf_len -= 4;
149
97.4M
    }
150
151
24.6k
    while (buf_len)
152
13.0k
    {
153
13.0k
        crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[0]) & 0xFF];
154
13.0k
        ++pByte_buf;
155
13.0k
        --buf_len;
156
13.0k
    }
157
158
11.5k
    return ~crc32;
159
11.5k
}
160
#endif
161
162
    void mz_free(void *p)
163
0
    {
164
0
        MZ_FREE(p);
165
0
    }
166
167
    MINIZ_EXPORT void *miniz_def_alloc_func(void *opaque, size_t items, size_t size)
168
59.8k
    {
169
59.8k
        (void)opaque, (void)items, (void)size;
170
59.8k
        return MZ_MALLOC(items * size);
171
59.8k
    }
172
    MINIZ_EXPORT void miniz_def_free_func(void *opaque, void *address)
173
118k
    {
174
118k
        (void)opaque, (void)address;
175
118k
        MZ_FREE(address);
176
118k
    }
177
    MINIZ_EXPORT void *miniz_def_realloc_func(void *opaque, void *address, size_t items, size_t size)
178
47.0k
    {
179
47.0k
        (void)opaque, (void)address, (void)items, (void)size;
180
47.0k
        return MZ_REALLOC(address, items * size);
181
47.0k
    }
182
183
    const char *mz_version(void)
184
2.91k
    {
185
2.91k
        return MZ_VERSION;
186
2.91k
    }
187
188
#ifndef MINIZ_NO_ZLIB_APIS
189
190
#ifndef MINIZ_NO_DEFLATE_APIS
191
192
    int mz_deflateInit(mz_streamp pStream, int level)
193
14.2k
    {
194
14.2k
        return mz_deflateInit2(pStream, level, MZ_DEFLATED, MZ_DEFAULT_WINDOW_BITS, 9, MZ_DEFAULT_STRATEGY);
195
14.2k
    }
196
197
    int mz_deflateInit2(mz_streamp pStream, int level, int method, int window_bits, int mem_level, int strategy)
198
14.2k
    {
199
14.2k
        tdefl_compressor *pComp;
200
14.2k
        mz_uint comp_flags = TDEFL_COMPUTE_ADLER32 | tdefl_create_comp_flags_from_zip_params(level, window_bits, strategy);
201
202
14.2k
        if (!pStream)
203
0
            return MZ_STREAM_ERROR;
204
14.2k
        if ((method != MZ_DEFLATED) || ((mem_level < 1) || (mem_level > 9)) || ((window_bits != MZ_DEFAULT_WINDOW_BITS) && (-window_bits != MZ_DEFAULT_WINDOW_BITS)))
205
0
            return MZ_PARAM_ERROR;
206
207
14.2k
        pStream->data_type = 0;
208
14.2k
        pStream->adler = MZ_ADLER32_INIT;
209
14.2k
        pStream->msg = NULL;
210
14.2k
        pStream->reserved = 0;
211
14.2k
        pStream->total_in = 0;
212
14.2k
        pStream->total_out = 0;
213
14.2k
        if (!pStream->zalloc)
214
14.2k
            pStream->zalloc = miniz_def_alloc_func;
215
14.2k
        if (!pStream->zfree)
216
14.2k
            pStream->zfree = miniz_def_free_func;
217
218
14.2k
        pComp = (tdefl_compressor *)pStream->zalloc(pStream->opaque, 1, sizeof(tdefl_compressor));
219
14.2k
        if (!pComp)
220
0
            return MZ_MEM_ERROR;
221
222
14.2k
        pStream->state = (struct mz_internal_state *)pComp;
223
224
14.2k
        if (tdefl_init(pComp, NULL, NULL, comp_flags) != TDEFL_STATUS_OKAY)
225
0
        {
226
0
            mz_deflateEnd(pStream);
227
0
            return MZ_PARAM_ERROR;
228
0
        }
229
230
14.2k
        return MZ_OK;
231
14.2k
    }
232
233
    int mz_deflateReset(mz_streamp pStream)
234
0
    {
235
0
        if ((!pStream) || (!pStream->state) || (!pStream->zalloc) || (!pStream->zfree))
236
0
            return MZ_STREAM_ERROR;
237
0
        pStream->total_in = pStream->total_out = 0;
238
0
        tdefl_init((tdefl_compressor *)pStream->state, NULL, NULL, ((tdefl_compressor *)pStream->state)->m_flags);
239
0
        return MZ_OK;
240
0
    }
241
242
    int mz_deflate(mz_streamp pStream, int flush)
243
332M
    {
244
332M
        size_t in_bytes, out_bytes;
245
332M
        mz_ulong orig_total_in, orig_total_out;
246
332M
        int mz_status = MZ_OK;
247
248
332M
        if ((!pStream) || (!pStream->state) || (flush < 0) || (flush > MZ_FINISH) || (!pStream->next_out))
249
0
            return MZ_STREAM_ERROR;
250
332M
        if (!pStream->avail_out)
251
0
            return MZ_BUF_ERROR;
252
253
332M
        if (flush == MZ_PARTIAL_FLUSH)
254
0
            flush = MZ_SYNC_FLUSH;
255
256
332M
        if (((tdefl_compressor *)pStream->state)->m_prev_return_status == TDEFL_STATUS_DONE)
257
0
            return (flush == MZ_FINISH) ? MZ_STREAM_END : MZ_BUF_ERROR;
258
259
332M
        orig_total_in = pStream->total_in;
260
332M
        orig_total_out = pStream->total_out;
261
332M
        for (;;)
262
332M
        {
263
332M
            tdefl_status defl_status;
264
332M
            in_bytes = pStream->avail_in;
265
332M
            out_bytes = pStream->avail_out;
266
267
332M
            defl_status = tdefl_compress((tdefl_compressor *)pStream->state, pStream->next_in, &in_bytes, pStream->next_out, &out_bytes, (tdefl_flush)flush);
268
332M
            pStream->next_in += (mz_uint)in_bytes;
269
332M
            pStream->avail_in -= (mz_uint)in_bytes;
270
332M
            pStream->total_in += (mz_uint)in_bytes;
271
332M
            pStream->adler = tdefl_get_adler32((tdefl_compressor *)pStream->state);
272
273
332M
            pStream->next_out += (mz_uint)out_bytes;
274
332M
            pStream->avail_out -= (mz_uint)out_bytes;
275
332M
            pStream->total_out += (mz_uint)out_bytes;
276
277
332M
            if (defl_status < 0)
278
0
            {
279
0
                mz_status = MZ_STREAM_ERROR;
280
0
                break;
281
0
            }
282
332M
            else if (defl_status == TDEFL_STATUS_DONE)
283
14.2k
            {
284
14.2k
                mz_status = MZ_STREAM_END;
285
14.2k
                break;
286
14.2k
            }
287
332M
            else if (!pStream->avail_out)
288
138M
                break;
289
194M
            else if ((!pStream->avail_in) && (flush != MZ_FINISH))
290
194M
            {
291
194M
                if ((flush) || (pStream->total_in != orig_total_in) || (pStream->total_out != orig_total_out))
292
194M
                    break;
293
537
                return MZ_BUF_ERROR; /* Can't make forward progress without some input.
294
                                      */
295
194M
            }
296
332M
        }
297
332M
        return mz_status;
298
332M
    }
299
300
    int mz_deflateEnd(mz_streamp pStream)
301
14.2k
    {
302
14.2k
        if (!pStream)
303
0
            return MZ_STREAM_ERROR;
304
14.2k
        if (pStream->state)
305
14.2k
        {
306
14.2k
            pStream->zfree(pStream->opaque, pStream->state);
307
14.2k
            pStream->state = NULL;
308
14.2k
        }
309
14.2k
        return MZ_OK;
310
14.2k
    }
311
312
    mz_ulong mz_deflateBound(mz_streamp pStream, mz_ulong source_len)
313
5.99k
    {
314
5.99k
        (void)pStream;
315
        /* This is really over conservative. (And lame, but it's actually pretty tricky to compute a true upper bound given the way tdefl's blocking works.) */
316
5.99k
        return MZ_MAX(128 + (source_len * 110) / 100, 128 + source_len + ((source_len / (31 * 1024)) + 1) * 5);
317
5.99k
    }
318
319
    int mz_compress2(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len, int level)
320
10.2k
    {
321
10.2k
        int status;
322
10.2k
        mz_stream stream;
323
10.2k
        memset(&stream, 0, sizeof(stream));
324
325
        /* In case mz_ulong is 64-bits (argh I hate longs). */
326
10.2k
        if ((mz_uint64)(source_len | *pDest_len) > 0xFFFFFFFFU)
327
0
            return MZ_PARAM_ERROR;
328
329
10.2k
        stream.next_in = pSource;
330
10.2k
        stream.avail_in = (mz_uint32)source_len;
331
10.2k
        stream.next_out = pDest;
332
10.2k
        stream.avail_out = (mz_uint32)*pDest_len;
333
334
10.2k
        status = mz_deflateInit(&stream, level);
335
10.2k
        if (status != MZ_OK)
336
0
            return status;
337
338
10.2k
        status = mz_deflate(&stream, MZ_FINISH);
339
10.2k
        if (status != MZ_STREAM_END)
340
0
        {
341
0
            mz_deflateEnd(&stream);
342
0
            return (status == MZ_OK) ? MZ_BUF_ERROR : status;
343
0
        }
344
345
10.2k
        *pDest_len = stream.total_out;
346
10.2k
        return mz_deflateEnd(&stream);
347
10.2k
    }
348
349
    int mz_compress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len)
350
0
    {
351
0
        return mz_compress2(pDest, pDest_len, pSource, source_len, MZ_DEFAULT_COMPRESSION);
352
0
    }
353
354
    mz_ulong mz_compressBound(mz_ulong source_len)
355
5.99k
    {
356
5.99k
        return mz_deflateBound(NULL, source_len);
357
5.99k
    }
358
359
#endif /*#ifndef MINIZ_NO_DEFLATE_APIS*/
360
361
#ifndef MINIZ_NO_INFLATE_APIS
362
363
    typedef struct
364
    {
365
        tinfl_decompressor m_decomp;
366
        mz_uint m_dict_ofs, m_dict_avail, m_first_call, m_has_flushed;
367
        int m_window_bits;
368
        mz_uint8 m_dict[TINFL_LZ_DICT_SIZE];
369
        tinfl_status m_last_status;
370
    } inflate_state;
371
372
    int mz_inflateInit2(mz_streamp pStream, int window_bits)
373
17.4k
    {
374
17.4k
        inflate_state *pDecomp;
375
17.4k
        if (!pStream)
376
0
            return MZ_STREAM_ERROR;
377
17.4k
        if ((window_bits != MZ_DEFAULT_WINDOW_BITS) && (-window_bits != MZ_DEFAULT_WINDOW_BITS))
378
0
            return MZ_PARAM_ERROR;
379
380
17.4k
        pStream->data_type = 0;
381
17.4k
        pStream->adler = 0;
382
17.4k
        pStream->msg = NULL;
383
17.4k
        pStream->total_in = 0;
384
17.4k
        pStream->total_out = 0;
385
17.4k
        pStream->reserved = 0;
386
17.4k
        if (!pStream->zalloc)
387
17.4k
            pStream->zalloc = miniz_def_alloc_func;
388
17.4k
        if (!pStream->zfree)
389
17.4k
            pStream->zfree = miniz_def_free_func;
390
391
17.4k
        pDecomp = (inflate_state *)pStream->zalloc(pStream->opaque, 1, sizeof(inflate_state));
392
17.4k
        if (!pDecomp)
393
0
            return MZ_MEM_ERROR;
394
395
17.4k
        pStream->state = (struct mz_internal_state *)pDecomp;
396
397
17.4k
        tinfl_init(&pDecomp->m_decomp);
398
17.4k
        pDecomp->m_dict_ofs = 0;
399
17.4k
        pDecomp->m_dict_avail = 0;
400
17.4k
        pDecomp->m_last_status = TINFL_STATUS_NEEDS_MORE_INPUT;
401
17.4k
        pDecomp->m_first_call = 1;
402
17.4k
        pDecomp->m_has_flushed = 0;
403
17.4k
        pDecomp->m_window_bits = window_bits;
404
405
17.4k
        return MZ_OK;
406
17.4k
    }
407
408
    int mz_inflateInit(mz_streamp pStream)
409
17.4k
    {
410
17.4k
        return mz_inflateInit2(pStream, MZ_DEFAULT_WINDOW_BITS);
411
17.4k
    }
412
413
    int mz_inflateReset(mz_streamp pStream)
414
0
    {
415
0
        inflate_state *pDecomp;
416
0
        if (!pStream)
417
0
            return MZ_STREAM_ERROR;
418
419
0
        pStream->data_type = 0;
420
0
        pStream->adler = 0;
421
0
        pStream->msg = NULL;
422
0
        pStream->total_in = 0;
423
0
        pStream->total_out = 0;
424
0
        pStream->reserved = 0;
425
426
0
        pDecomp = (inflate_state *)pStream->state;
427
428
0
        tinfl_init(&pDecomp->m_decomp);
429
0
        pDecomp->m_dict_ofs = 0;
430
0
        pDecomp->m_dict_avail = 0;
431
0
        pDecomp->m_last_status = TINFL_STATUS_NEEDS_MORE_INPUT;
432
0
        pDecomp->m_first_call = 1;
433
0
        pDecomp->m_has_flushed = 0;
434
0
        /* pDecomp->m_window_bits = window_bits */;
435
436
0
        return MZ_OK;
437
0
    }
438
439
    int mz_inflate(mz_streamp pStream, int flush)
440
198M
    {
441
198M
        inflate_state *pState;
442
198M
        mz_uint n, first_call, decomp_flags = TINFL_FLAG_COMPUTE_ADLER32;
443
198M
        size_t in_bytes, out_bytes, orig_avail_in;
444
198M
        tinfl_status status;
445
446
198M
        if ((!pStream) || (!pStream->state))
447
0
            return MZ_STREAM_ERROR;
448
198M
        if (flush == MZ_PARTIAL_FLUSH)
449
0
            flush = MZ_SYNC_FLUSH;
450
198M
        if ((flush) && (flush != MZ_SYNC_FLUSH) && (flush != MZ_FINISH))
451
0
            return MZ_STREAM_ERROR;
452
453
198M
        pState = (inflate_state *)pStream->state;
454
198M
        if (pState->m_window_bits > 0)
455
198M
            decomp_flags |= TINFL_FLAG_PARSE_ZLIB_HEADER;
456
198M
        orig_avail_in = pStream->avail_in;
457
458
198M
        first_call = pState->m_first_call;
459
198M
        pState->m_first_call = 0;
460
198M
        if (pState->m_last_status < 0)
461
0
            return MZ_DATA_ERROR;
462
463
198M
        if (pState->m_has_flushed && (flush != MZ_FINISH))
464
0
            return MZ_STREAM_ERROR;
465
198M
        pState->m_has_flushed |= (flush == MZ_FINISH);
466
467
198M
        if ((flush == MZ_FINISH) && (first_call))
468
15.0k
        {
469
            /* MZ_FINISH on the first call implies that the input and output buffers are large enough to hold the entire compressed/decompressed file. */
470
15.0k
            decomp_flags |= TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF;
471
15.0k
            in_bytes = pStream->avail_in;
472
15.0k
            out_bytes = pStream->avail_out;
473
15.0k
            status = tinfl_decompress(&pState->m_decomp, pStream->next_in, &in_bytes, pStream->next_out, pStream->next_out, &out_bytes, decomp_flags);
474
15.0k
            pState->m_last_status = status;
475
15.0k
            pStream->next_in += (mz_uint)in_bytes;
476
15.0k
            pStream->avail_in -= (mz_uint)in_bytes;
477
15.0k
            pStream->total_in += (mz_uint)in_bytes;
478
15.0k
            pStream->adler = tinfl_get_adler32(&pState->m_decomp);
479
15.0k
            pStream->next_out += (mz_uint)out_bytes;
480
15.0k
            pStream->avail_out -= (mz_uint)out_bytes;
481
15.0k
            pStream->total_out += (mz_uint)out_bytes;
482
483
15.0k
            if (status < 0)
484
4.25k
                return MZ_DATA_ERROR;
485
10.8k
            else if (status != TINFL_STATUS_DONE)
486
585
            {
487
585
                pState->m_last_status = TINFL_STATUS_FAILED;
488
585
                return MZ_BUF_ERROR;
489
585
            }
490
10.2k
            return MZ_STREAM_END;
491
15.0k
        }
492
        /* flush != MZ_FINISH then we must assume there's more input. */
493
198M
        if (flush != MZ_FINISH)
494
198M
            decomp_flags |= TINFL_FLAG_HAS_MORE_INPUT;
495
496
198M
        if (pState->m_dict_avail)
497
60.3M
        {
498
60.3M
            n = MZ_MIN(pState->m_dict_avail, pStream->avail_out);
499
60.3M
            memcpy(pStream->next_out, pState->m_dict + pState->m_dict_ofs, n);
500
60.3M
            pStream->next_out += n;
501
60.3M
            pStream->avail_out -= n;
502
60.3M
            pStream->total_out += n;
503
60.3M
            pState->m_dict_avail -= n;
504
60.3M
            pState->m_dict_ofs = (pState->m_dict_ofs + n) & (TINFL_LZ_DICT_SIZE - 1);
505
60.3M
            return ((pState->m_last_status == TINFL_STATUS_DONE) && (!pState->m_dict_avail)) ? MZ_STREAM_END : MZ_OK;
506
60.3M
        }
507
508
138M
        for (;;)
509
138M
        {
510
138M
            in_bytes = pStream->avail_in;
511
138M
            out_bytes = TINFL_LZ_DICT_SIZE - pState->m_dict_ofs;
512
513
138M
            status = tinfl_decompress(&pState->m_decomp, pStream->next_in, &in_bytes, pState->m_dict, pState->m_dict + pState->m_dict_ofs, &out_bytes, decomp_flags);
514
138M
            pState->m_last_status = status;
515
516
138M
            pStream->next_in += (mz_uint)in_bytes;
517
138M
            pStream->avail_in -= (mz_uint)in_bytes;
518
138M
            pStream->total_in += (mz_uint)in_bytes;
519
138M
            pStream->adler = tinfl_get_adler32(&pState->m_decomp);
520
521
138M
            pState->m_dict_avail = (mz_uint)out_bytes;
522
523
138M
            n = MZ_MIN(pState->m_dict_avail, pStream->avail_out);
524
138M
            memcpy(pStream->next_out, pState->m_dict + pState->m_dict_ofs, n);
525
138M
            pStream->next_out += n;
526
138M
            pStream->avail_out -= n;
527
138M
            pStream->total_out += n;
528
138M
            pState->m_dict_avail -= n;
529
138M
            pState->m_dict_ofs = (pState->m_dict_ofs + n) & (TINFL_LZ_DICT_SIZE - 1);
530
531
138M
            if (status < 0)
532
0
                return MZ_DATA_ERROR; /* Stream is corrupted (there could be some uncompressed data left in the output dictionary - oh well). */
533
138M
            else if ((status == TINFL_STATUS_NEEDS_MORE_INPUT) && (!orig_avail_in))
534
0
                return MZ_BUF_ERROR; /* Signal caller that we can't make forward progress without supplying more input or by setting flush to MZ_FINISH. */
535
138M
            else if (flush == MZ_FINISH)
536
0
            {
537
                /* The output buffer MUST be large to hold the remaining uncompressed data when flush==MZ_FINISH. */
538
0
                if (status == TINFL_STATUS_DONE)
539
0
                    return pState->m_dict_avail ? MZ_BUF_ERROR : MZ_STREAM_END;
540
                /* status here must be TINFL_STATUS_HAS_MORE_OUTPUT, which means there's at least 1 more byte on the way. If there's no more room left in the output buffer then something is wrong. */
541
0
                else if (!pStream->avail_out)
542
0
                    return MZ_BUF_ERROR;
543
0
            }
544
138M
            else if ((status == TINFL_STATUS_DONE) || (!pStream->avail_in) || (!pStream->avail_out) || (pState->m_dict_avail))
545
138M
                break;
546
138M
        }
547
548
138M
        return ((status == TINFL_STATUS_DONE) && (!pState->m_dict_avail)) ? MZ_STREAM_END : MZ_OK;
549
138M
    }
550
551
    int mz_inflateEnd(mz_streamp pStream)
552
17.4k
    {
553
17.4k
        if (!pStream)
554
0
            return MZ_STREAM_ERROR;
555
17.4k
        if (pStream->state)
556
17.4k
        {
557
17.4k
            pStream->zfree(pStream->opaque, pStream->state);
558
17.4k
            pStream->state = NULL;
559
17.4k
        }
560
17.4k
        return MZ_OK;
561
17.4k
    }
562
    int mz_uncompress2(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong *pSource_len)
563
15.0k
    {
564
15.0k
        mz_stream stream;
565
15.0k
        int status;
566
15.0k
        memset(&stream, 0, sizeof(stream));
567
568
        /* In case mz_ulong is 64-bits (argh I hate longs). */
569
15.0k
        if ((mz_uint64)(*pSource_len | *pDest_len) > 0xFFFFFFFFU)
570
0
            return MZ_PARAM_ERROR;
571
572
15.0k
        stream.next_in = pSource;
573
15.0k
        stream.avail_in = (mz_uint32)*pSource_len;
574
15.0k
        stream.next_out = pDest;
575
15.0k
        stream.avail_out = (mz_uint32)*pDest_len;
576
577
15.0k
        status = mz_inflateInit(&stream);
578
15.0k
        if (status != MZ_OK)
579
0
            return status;
580
581
15.0k
        status = mz_inflate(&stream, MZ_FINISH);
582
15.0k
        *pSource_len = *pSource_len - stream.avail_in;
583
15.0k
        if (status != MZ_STREAM_END)
584
4.83k
        {
585
4.83k
            mz_inflateEnd(&stream);
586
4.83k
            return ((status == MZ_BUF_ERROR) && (!stream.avail_in)) ? MZ_DATA_ERROR : status;
587
4.83k
        }
588
10.2k
        *pDest_len = stream.total_out;
589
590
10.2k
        return mz_inflateEnd(&stream);
591
15.0k
    }
592
593
    int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len)
594
13.9k
    {
595
13.9k
        return mz_uncompress2(pDest, pDest_len, pSource, &source_len);
596
13.9k
    }
597
598
#endif /*#ifndef MINIZ_NO_INFLATE_APIS*/
599
600
    const char *mz_error(int err)
601
0
    {
602
0
        static struct
603
0
        {
604
0
            int m_err;
605
0
            const char *m_pDesc;
606
0
        } s_error_descs[] = {
607
0
            { MZ_OK, "" }, { MZ_STREAM_END, "stream end" }, { MZ_NEED_DICT, "need dictionary" }, { MZ_ERRNO, "file error" }, { MZ_STREAM_ERROR, "stream error" }, { MZ_DATA_ERROR, "data error" }, { MZ_MEM_ERROR, "out of memory" }, { MZ_BUF_ERROR, "buf error" }, { MZ_VERSION_ERROR, "version error" }, { MZ_PARAM_ERROR, "parameter error" }
608
0
        };
609
0
        mz_uint i;
610
0
        for (i = 0; i < sizeof(s_error_descs) / sizeof(s_error_descs[0]); ++i)
611
0
            if (s_error_descs[i].m_err == err)
612
0
                return s_error_descs[i].m_pDesc;
613
0
        return NULL;
614
0
    }
615
616
#endif /*MINIZ_NO_ZLIB_APIS */
617
618
#ifdef __cplusplus
619
}
620
#endif
621
622
/*
623
  This is free and unencumbered software released into the public domain.
624
625
  Anyone is free to copy, modify, publish, use, compile, sell, or
626
  distribute this software, either in source code form or as a compiled
627
  binary, for any purpose, commercial or non-commercial, and by any
628
  means.
629
630
  In jurisdictions that recognize copyright laws, the author or authors
631
  of this software dedicate any and all copyright interest in the
632
  software to the public domain. We make this dedication for the benefit
633
  of the public at large and to the detriment of our heirs and
634
  successors. We intend this dedication to be an overt act of
635
  relinquishment in perpetuity of all present and future rights to this
636
  software under copyright law.
637
638
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
639
  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
640
  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
641
  IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
642
  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
643
  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
644
  OTHER DEALINGS IN THE SOFTWARE.
645
646
  For more information, please refer to <http://unlicense.org/>
647
*/
648
/**************************************************************************
649
 *
650
 * Copyright 2013-2014 RAD Game Tools and Valve Software
651
 * Copyright 2010-2014 Rich Geldreich and Tenacious Software LLC
652
 * All Rights Reserved.
653
 *
654
 * Permission is hereby granted, free of charge, to any person obtaining a copy
655
 * of this software and associated documentation files (the "Software"), to deal
656
 * in the Software without restriction, including without limitation the rights
657
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
658
 * copies of the Software, and to permit persons to whom the Software is
659
 * furnished to do so, subject to the following conditions:
660
 *
661
 * The above copyright notice and this permission notice shall be included in
662
 * all copies or substantial portions of the Software.
663
 *
664
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
665
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
666
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
667
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
668
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
669
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
670
 * THE SOFTWARE.
671
 *
672
 **************************************************************************/
673
674
675
676
#ifndef MINIZ_NO_DEFLATE_APIS
677
678
#ifdef __cplusplus
679
extern "C"
680
{
681
#endif
682
683
    /* ------------------- Low-level Compression (independent from all decompression API's) */
684
685
    /* Purposely making these tables static for faster init and thread safety. */
686
    static const mz_uint16 s_tdefl_len_sym[256] = {
687
        257, 258, 259, 260, 261, 262, 263, 264, 265, 265, 266, 266, 267, 267, 268, 268, 269, 269, 269, 269, 270, 270, 270, 270, 271, 271, 271, 271, 272, 272, 272, 272,
688
        273, 273, 273, 273, 273, 273, 273, 273, 274, 274, 274, 274, 274, 274, 274, 274, 275, 275, 275, 275, 275, 275, 275, 275, 276, 276, 276, 276, 276, 276, 276, 276,
689
        277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278,
690
        279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280,
691
        281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281,
692
        282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282,
693
        283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283,
694
        284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 285
695
    };
696
697
    static const mz_uint8 s_tdefl_len_extra[256] = {
698
        0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
699
        4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
700
        5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
701
        5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 0
702
    };
703
704
    static const mz_uint8 s_tdefl_small_dist_sym[512] = {
705
        0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11,
706
        11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13,
707
        13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
708
        14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
709
        14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
710
        15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
711
        16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
712
        16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
713
        16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
714
        17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
715
        17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
716
        17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17
717
    };
718
719
    static const mz_uint8 s_tdefl_small_dist_extra[512] = {
720
        0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5,
721
        5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
722
        6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
723
        6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
724
        7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
725
        7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
726
        7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
727
        7, 7, 7, 7, 7, 7, 7, 7
728
    };
729
730
    static const mz_uint8 s_tdefl_large_dist_sym[128] = {
731
        0, 0, 18, 19, 20, 20, 21, 21, 22, 22, 22, 22, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
732
        26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
733
        28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29
734
    };
735
736
    static const mz_uint8 s_tdefl_large_dist_extra[128] = {
737
        0, 0, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
738
        12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
739
        13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13
740
    };
741
742
    /* Radix sorts tdefl_sym_freq[] array by 16-bit key m_key. Returns ptr to sorted values. */
743
    typedef struct
744
    {
745
        mz_uint16 m_key, m_sym_index;
746
    } tdefl_sym_freq;
747
    static tdefl_sym_freq *tdefl_radix_sort_syms(mz_uint num_syms, tdefl_sym_freq *pSyms0, tdefl_sym_freq *pSyms1)
748
116k
    {
749
116k
        mz_uint32 total_passes = 2, pass_shift, pass, i, hist[256 * 2];
750
116k
        tdefl_sym_freq *pCur_syms = pSyms0, *pNew_syms = pSyms1;
751
116k
        MZ_CLEAR_ARR(hist);
752
8.86M
        for (i = 0; i < num_syms; i++)
753
8.75M
        {
754
8.75M
            mz_uint freq = pSyms0[i].m_key;
755
8.75M
            hist[freq & 0xFF]++;
756
8.75M
            hist[256 + ((freq >> 8) & 0xFF)]++;
757
8.75M
        }
758
212k
        while ((total_passes > 1) && (num_syms == hist[(total_passes - 1) * 256]))
759
96.6k
            total_passes--;
760
252k
        for (pass_shift = 0, pass = 0; pass < total_passes; pass++, pass_shift += 8)
761
135k
        {
762
135k
            const mz_uint32 *pHist = &hist[pass << 8];
763
135k
            mz_uint offsets[256], cur_ofs = 0;
764
34.9M
            for (i = 0; i < 256; i++)
765
34.8M
            {
766
34.8M
                offsets[i] = cur_ofs;
767
34.8M
                cur_ofs += pHist[i];
768
34.8M
            }
769
12.9M
            for (i = 0; i < num_syms; i++)
770
12.8M
                pNew_syms[offsets[(pCur_syms[i].m_key >> pass_shift) & 0xFF]++] = pCur_syms[i];
771
135k
            {
772
135k
                tdefl_sym_freq *t = pCur_syms;
773
135k
                pCur_syms = pNew_syms;
774
135k
                pNew_syms = t;
775
135k
            }
776
135k
        }
777
116k
        return pCur_syms;
778
116k
    }
779
780
    /* tdefl_calculate_minimum_redundancy() originally written by: Alistair Moffat, alistair@cs.mu.oz.au, Jyrki Katajainen, jyrki@diku.dk, November 1996. */
781
    static void tdefl_calculate_minimum_redundancy(tdefl_sym_freq *A, int n)
782
116k
    {
783
116k
        int root, leaf, next, avbl, used, dpth;
784
116k
        if (n == 0)
785
2.11k
            return;
786
114k
        else if (n == 1)
787
3.05k
        {
788
3.05k
            A[0].m_key = 1;
789
3.05k
            return;
790
3.05k
        }
791
111k
        A[0].m_key += A[1].m_key;
792
111k
        root = 0;
793
111k
        leaf = 2;
794
8.63M
        for (next = 1; next < n - 1; next++)
795
8.52M
        {
796
8.52M
            if (leaf >= n || A[root].m_key < A[leaf].m_key)
797
4.25M
            {
798
4.25M
                A[next].m_key = A[root].m_key;
799
4.25M
                A[root++].m_key = (mz_uint16)next;
800
4.25M
            }
801
4.27M
            else
802
4.27M
                A[next].m_key = A[leaf++].m_key;
803
8.52M
            if (leaf >= n || (root < next && A[root].m_key < A[leaf].m_key))
804
4.27M
            {
805
4.27M
                A[next].m_key = (mz_uint16)(A[next].m_key + A[root].m_key);
806
4.27M
                A[root++].m_key = (mz_uint16)next;
807
4.27M
            }
808
4.25M
            else
809
4.25M
                A[next].m_key = (mz_uint16)(A[next].m_key + A[leaf++].m_key);
810
8.52M
        }
811
111k
        A[n - 2].m_key = 0;
812
8.63M
        for (next = n - 3; next >= 0; next--)
813
8.52M
            A[next].m_key = A[A[next].m_key].m_key + 1;
814
111k
        avbl = 1;
815
111k
        used = dpth = 0;
816
111k
        root = n - 2;
817
111k
        next = n - 1;
818
1.06M
        while (avbl > 0)
819
952k
        {
820
9.58M
            while (root >= 0 && (int)A[root].m_key == dpth)
821
8.63M
            {
822
8.63M
                used++;
823
8.63M
                root--;
824
8.63M
            }
825
9.69M
            while (avbl > used)
826
8.74M
            {
827
8.74M
                A[next--].m_key = (mz_uint16)(dpth);
828
8.74M
                avbl--;
829
8.74M
            }
830
952k
            avbl = 2 * used;
831
952k
            dpth++;
832
952k
            used = 0;
833
952k
        }
834
111k
    }
835
836
    /* Limits canonical Huffman code table's max code size. */
837
    enum
838
    {
839
        TDEFL_MAX_SUPPORTED_HUFF_CODESIZE = 32
840
    };
841
    static void tdefl_huffman_enforce_max_code_size(int *pNum_codes, int code_list_len, int max_code_size)
842
116k
    {
843
116k
        int i;
844
116k
        mz_uint32 total = 0;
845
116k
        if (code_list_len <= 1)
846
5.17k
            return;
847
2.31M
        for (i = max_code_size + 1; i <= TDEFL_MAX_SUPPORTED_HUFF_CODESIZE; i++)
848
2.19M
            pNum_codes[max_code_size] += pNum_codes[i];
849
1.46M
        for (i = max_code_size; i > 0; i--)
850
1.35M
            total += (((mz_uint32)pNum_codes[i]) << (max_code_size - i));
851
130k
        while (total != (1UL << max_code_size))
852
18.9k
        {
853
18.9k
            pNum_codes[max_code_size]--;
854
24.8k
            for (i = max_code_size - 1; i > 0; i--)
855
24.8k
                if (pNum_codes[i])
856
18.9k
                {
857
18.9k
                    pNum_codes[i]--;
858
18.9k
                    pNum_codes[i + 1] += 2;
859
18.9k
                    break;
860
18.9k
                }
861
18.9k
            total--;
862
18.9k
        }
863
111k
    }
864
865
    static void tdefl_optimize_huffman_table(tdefl_compressor *d, int table_num, int table_len, int code_size_limit, int static_table)
866
128k
    {
867
128k
        int i, j, l, num_codes[1 + TDEFL_MAX_SUPPORTED_HUFF_CODESIZE];
868
128k
        mz_uint next_code[TDEFL_MAX_SUPPORTED_HUFF_CODESIZE + 1];
869
128k
        MZ_CLEAR_ARR(num_codes);
870
128k
        if (static_table)
871
12.3k
        {
872
1.98M
            for (i = 0; i < table_len; i++)
873
1.97M
                num_codes[d->m_huff_code_sizes[table_num][i]]++;
874
12.3k
        }
875
116k
        else
876
116k
        {
877
116k
            tdefl_sym_freq syms0[TDEFL_MAX_HUFF_SYMBOLS], syms1[TDEFL_MAX_HUFF_SYMBOLS], *pSyms;
878
116k
            int num_used_syms = 0;
879
116k
            const mz_uint16 *pSym_count = &d->m_huff_count[table_num][0];
880
13.2M
            for (i = 0; i < table_len; i++)
881
13.1M
                if (pSym_count[i])
882
8.75M
                {
883
8.75M
                    syms0[num_used_syms].m_key = (mz_uint16)pSym_count[i];
884
8.75M
                    syms0[num_used_syms++].m_sym_index = (mz_uint16)i;
885
8.75M
                }
886
887
116k
            pSyms = tdefl_radix_sort_syms(num_used_syms, syms0, syms1);
888
116k
            tdefl_calculate_minimum_redundancy(pSyms, num_used_syms);
889
890
8.86M
            for (i = 0; i < num_used_syms; i++)
891
8.75M
                num_codes[pSyms[i].m_key]++;
892
893
116k
            tdefl_huffman_enforce_max_code_size(num_codes, num_used_syms, code_size_limit);
894
895
116k
            MZ_CLEAR_ARR(d->m_huff_code_sizes[table_num]);
896
116k
            MZ_CLEAR_ARR(d->m_huff_codes[table_num]);
897
1.55M
            for (i = 1, j = num_used_syms; i <= code_size_limit; i++)
898
10.1M
                for (l = num_codes[i]; l > 0; l--)
899
8.75M
                    d->m_huff_code_sizes[table_num][pSyms[--j].m_sym_index] = (mz_uint8)(i);
900
116k
        }
901
902
128k
        next_code[1] = 0;
903
1.61M
        for (j = 0, i = 2; i <= code_size_limit; i++)
904
1.49M
            next_code[i] = j = ((j + num_codes[i - 1]) << 1);
905
906
15.2M
        for (i = 0; i < table_len; i++)
907
15.1M
        {
908
15.1M
            mz_uint rev_code = 0, code, code_size;
909
15.1M
            if ((code_size = d->m_huff_code_sizes[table_num][i]) == 0)
910
4.39M
                continue;
911
10.7M
            code = next_code[code_size]++;
912
96.0M
            for (l = code_size; l > 0; l--, code >>= 1)
913
85.3M
                rev_code = (rev_code << 1) | (code & 1);
914
10.7M
            d->m_huff_codes[table_num][i] = (mz_uint16)rev_code;
915
10.7M
        }
916
128k
    }
917
918
#define TDEFL_PUT_BITS(b, l)                                       \
919
1.23G
    do                                                             \
920
1.23G
    {                                                              \
921
1.23G
        mz_uint bits = b;                                          \
922
1.23G
        mz_uint len = l;                                           \
923
1.23G
        MZ_ASSERT(bits <= ((1U << len) - 1U));                     \
924
1.23G
        d->m_bit_buffer |= (bits << d->m_bits_in);                 \
925
1.23G
        d->m_bits_in += len;                                       \
926
2.36G
        while (d->m_bits_in >= 8)                                  \
927
1.23G
        {                                                          \
928
1.13G
            if (d->m_pOutput_buf < d->m_pOutput_buf_end)           \
929
1.13G
                *d->m_pOutput_buf++ = (mz_uint8)(d->m_bit_buffer); \
930
1.13G
            d->m_bit_buffer >>= 8;                                 \
931
1.13G
            d->m_bits_in -= 8;                                     \
932
1.13G
        }                                                          \
933
1.23G
    }                                                              \
934
1.23G
    MZ_MACRO_END
935
936
#define TDEFL_RLE_PREV_CODE_SIZE()                                                                                       \
937
6.86M
    {                                                                                                                    \
938
6.86M
        if (rle_repeat_count)                                                                                            \
939
6.86M
        {                                                                                                                \
940
1.21M
            if (rle_repeat_count < 3)                                                                                    \
941
1.21M
            {                                                                                                            \
942
391k
                d->m_huff_count[2][prev_code_size] = (mz_uint16)(d->m_huff_count[2][prev_code_size] + rle_repeat_count); \
943
909k
                while (rle_repeat_count--)                                                                               \
944
517k
                    packed_code_sizes[num_packed_code_sizes++] = prev_code_size;                                         \
945
391k
            }                                                                                                            \
946
1.21M
            else                                                                                                         \
947
1.21M
            {                                                                                                            \
948
822k
                d->m_huff_count[2][16] = (mz_uint16)(d->m_huff_count[2][16] + 1);                                        \
949
822k
                packed_code_sizes[num_packed_code_sizes++] = 16;                                                         \
950
822k
                packed_code_sizes[num_packed_code_sizes++] = (mz_uint8)(rle_repeat_count - 3);                           \
951
822k
            }                                                                                                            \
952
1.21M
            rle_repeat_count = 0;                                                                                        \
953
1.21M
        }                                                                                                                \
954
6.86M
    }
955
956
#define TDEFL_RLE_ZERO_CODE_SIZE()                                                         \
957
8.34M
    {                                                                                      \
958
8.34M
        if (rle_z_count)                                                                   \
959
8.34M
        {                                                                                  \
960
851k
            if (rle_z_count < 3)                                                           \
961
851k
            {                                                                              \
962
678k
                d->m_huff_count[2][0] = (mz_uint16)(d->m_huff_count[2][0] + rle_z_count);  \
963
1.42M
                while (rle_z_count--)                                                      \
964
747k
                    packed_code_sizes[num_packed_code_sizes++] = 0;                        \
965
678k
            }                                                                              \
966
851k
            else if (rle_z_count <= 10)                                                    \
967
173k
            {                                                                              \
968
119k
                d->m_huff_count[2][17] = (mz_uint16)(d->m_huff_count[2][17] + 1);          \
969
119k
                packed_code_sizes[num_packed_code_sizes++] = 17;                           \
970
119k
                packed_code_sizes[num_packed_code_sizes++] = (mz_uint8)(rle_z_count - 3);  \
971
119k
            }                                                                              \
972
173k
            else                                                                           \
973
173k
            {                                                                              \
974
54.2k
                d->m_huff_count[2][18] = (mz_uint16)(d->m_huff_count[2][18] + 1);          \
975
54.2k
                packed_code_sizes[num_packed_code_sizes++] = 18;                           \
976
54.2k
                packed_code_sizes[num_packed_code_sizes++] = (mz_uint8)(rle_z_count - 11); \
977
54.2k
            }                                                                              \
978
851k
            rle_z_count = 0;                                                               \
979
851k
        }                                                                                  \
980
8.34M
    }
981
982
    static const mz_uint8 s_tdefl_packed_code_size_syms_swizzle[] = { 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 };
983
984
    static void tdefl_start_dynamic_block(tdefl_compressor *d)
985
38.7k
    {
986
38.7k
        int num_lit_codes, num_dist_codes, num_bit_lengths;
987
38.7k
        mz_uint i, total_code_sizes_to_pack, num_packed_code_sizes, rle_z_count, rle_repeat_count, packed_code_sizes_index;
988
38.7k
        mz_uint8 code_sizes_to_pack[TDEFL_MAX_HUFF_SYMBOLS_0 + TDEFL_MAX_HUFF_SYMBOLS_1], packed_code_sizes[TDEFL_MAX_HUFF_SYMBOLS_0 + TDEFL_MAX_HUFF_SYMBOLS_1], prev_code_size = 0xFF;
989
990
38.7k
        d->m_huff_count[0][256] = 1;
991
992
38.7k
        tdefl_optimize_huffman_table(d, 0, TDEFL_MAX_HUFF_SYMBOLS_0, 15, MZ_FALSE);
993
38.7k
        tdefl_optimize_huffman_table(d, 1, TDEFL_MAX_HUFF_SYMBOLS_1, 15, MZ_FALSE);
994
995
600k
        for (num_lit_codes = 286; num_lit_codes > 257; num_lit_codes--)
996
598k
            if (d->m_huff_code_sizes[0][num_lit_codes - 1])
997
36.6k
                break;
998
376k
        for (num_dist_codes = 30; num_dist_codes > 1; num_dist_codes--)
999
372k
            if (d->m_huff_code_sizes[1][num_dist_codes - 1])
1000
35.0k
                break;
1001
1002
38.7k
        memcpy(code_sizes_to_pack, &d->m_huff_code_sizes[0][0], num_lit_codes);
1003
38.7k
        memcpy(code_sizes_to_pack + num_lit_codes, &d->m_huff_code_sizes[1][0], num_dist_codes);
1004
38.7k
        total_code_sizes_to_pack = num_lit_codes + num_dist_codes;
1005
38.7k
        num_packed_code_sizes = 0;
1006
38.7k
        rle_z_count = 0;
1007
38.7k
        rle_repeat_count = 0;
1008
1009
38.7k
        memset(&d->m_huff_count[2][0], 0, sizeof(d->m_huff_count[2][0]) * TDEFL_MAX_HUFF_SYMBOLS_2);
1010
11.3M
        for (i = 0; i < total_code_sizes_to_pack; i++)
1011
11.3M
        {
1012
11.3M
            mz_uint8 code_size = code_sizes_to_pack[i];
1013
11.3M
            if (!code_size)
1014
3.03M
            {
1015
3.03M
                TDEFL_RLE_PREV_CODE_SIZE();
1016
3.03M
                if (++rle_z_count == 138)
1017
1.69k
                {
1018
1.69k
                    TDEFL_RLE_ZERO_CODE_SIZE();
1019
1.69k
                }
1020
3.03M
            }
1021
8.31M
            else
1022
8.31M
            {
1023
8.31M
                TDEFL_RLE_ZERO_CODE_SIZE();
1024
8.31M
                if (code_size != prev_code_size)
1025
3.10M
                {
1026
3.10M
                    TDEFL_RLE_PREV_CODE_SIZE();
1027
3.10M
                    d->m_huff_count[2][code_size] = (mz_uint16)(d->m_huff_count[2][code_size] + 1);
1028
3.10M
                    packed_code_sizes[num_packed_code_sizes++] = code_size;
1029
3.10M
                }
1030
5.21M
                else if (++rle_repeat_count == 6)
1031
712k
                {
1032
712k
                    TDEFL_RLE_PREV_CODE_SIZE();
1033
712k
                }
1034
8.31M
            }
1035
11.3M
            prev_code_size = code_size;
1036
11.3M
        }
1037
38.7k
        if (rle_repeat_count)
1038
9.23k
        {
1039
9.23k
            TDEFL_RLE_PREV_CODE_SIZE();
1040
9.23k
        }
1041
29.5k
        else
1042
29.5k
        {
1043
29.5k
            TDEFL_RLE_ZERO_CODE_SIZE();
1044
29.5k
        }
1045
1046
38.7k
        tdefl_optimize_huffman_table(d, 2, TDEFL_MAX_HUFF_SYMBOLS_2, 7, MZ_FALSE);
1047
1048
38.7k
        TDEFL_PUT_BITS(2, 2);
1049
1050
38.7k
        TDEFL_PUT_BITS(num_lit_codes - 257, 5);
1051
38.7k
        TDEFL_PUT_BITS(num_dist_codes - 1, 5);
1052
1053
120k
        for (num_bit_lengths = 18; num_bit_lengths >= 0; num_bit_lengths--)
1054
120k
            if (d->m_huff_code_sizes[2][s_tdefl_packed_code_size_syms_swizzle[num_bit_lengths]])
1055
38.7k
                break;
1056
38.7k
        num_bit_lengths = MZ_MAX(4, (num_bit_lengths + 1));
1057
38.7k
        TDEFL_PUT_BITS(num_bit_lengths - 4, 4);
1058
693k
        for (i = 0; (int)i < num_bit_lengths; i++)
1059
655k
            TDEFL_PUT_BITS(d->m_huff_code_sizes[2][s_tdefl_packed_code_size_syms_swizzle[i]], 3);
1060
1061
5.40M
        for (packed_code_sizes_index = 0; packed_code_sizes_index < num_packed_code_sizes;)
1062
5.36M
        {
1063
5.36M
            mz_uint code = packed_code_sizes[packed_code_sizes_index++];
1064
5.36M
            MZ_ASSERT(code < TDEFL_MAX_HUFF_SYMBOLS_2);
1065
5.36M
            TDEFL_PUT_BITS(d->m_huff_codes[2][code], d->m_huff_code_sizes[2][code]);
1066
5.36M
            if (code >= 16)
1067
996k
                TDEFL_PUT_BITS(packed_code_sizes[packed_code_sizes_index++], "\02\03\07"[code - 16]);
1068
5.36M
        }
1069
38.7k
    }
1070
1071
    static void tdefl_start_static_block(tdefl_compressor *d)
1072
6.17k
    {
1073
6.17k
        mz_uint i;
1074
6.17k
        mz_uint8 *p = &d->m_huff_code_sizes[0][0];
1075
1076
895k
        for (i = 0; i <= 143; ++i)
1077
889k
            *p++ = 8;
1078
698k
        for (; i <= 255; ++i)
1079
692k
            *p++ = 9;
1080
154k
        for (; i <= 279; ++i)
1081
148k
            *p++ = 7;
1082
55.6k
        for (; i <= 287; ++i)
1083
49.4k
            *p++ = 8;
1084
1085
6.17k
        memset(d->m_huff_code_sizes[1], 5, 32);
1086
1087
6.17k
        tdefl_optimize_huffman_table(d, 0, 288, 15, MZ_TRUE);
1088
6.17k
        tdefl_optimize_huffman_table(d, 1, 32, 15, MZ_TRUE);
1089
1090
6.17k
        TDEFL_PUT_BITS(1, 2);
1091
6.17k
    }
1092
1093
    static const mz_uint mz_bitmasks[17] = { 0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F, 0x007F, 0x00FF, 0x01FF, 0x03FF, 0x07FF, 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, 0xFFFF };
1094
1095
#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN && MINIZ_HAS_64BIT_REGISTERS
1096
    static mz_bool tdefl_compress_lz_codes(tdefl_compressor *d)
1097
    {
1098
        mz_uint flags;
1099
        mz_uint8 *pLZ_codes;
1100
        mz_uint8 *pOutput_buf = d->m_pOutput_buf;
1101
        mz_uint8 *pLZ_code_buf_end = d->m_pLZ_code_buf;
1102
        mz_uint64 bit_buffer = d->m_bit_buffer;
1103
        mz_uint bits_in = d->m_bits_in;
1104
1105
#define TDEFL_PUT_BITS_FAST(b, l)                    \
1106
    {                                                \
1107
        bit_buffer |= (((mz_uint64)(b)) << bits_in); \
1108
        bits_in += (l);                              \
1109
    }
1110
1111
        flags = 1;
1112
        for (pLZ_codes = d->m_lz_code_buf; pLZ_codes < pLZ_code_buf_end; flags >>= 1)
1113
        {
1114
            if (flags == 1)
1115
                flags = *pLZ_codes++ | 0x100;
1116
1117
            if (flags & 1)
1118
            {
1119
                mz_uint s0, s1, n0, n1, sym, num_extra_bits;
1120
                mz_uint match_len = pLZ_codes[0];
1121
                mz_uint match_dist = (pLZ_codes[1] | (pLZ_codes[2] << 8));
1122
                pLZ_codes += 3;
1123
1124
                MZ_ASSERT(d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]);
1125
                TDEFL_PUT_BITS_FAST(d->m_huff_codes[0][s_tdefl_len_sym[match_len]], d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]);
1126
                TDEFL_PUT_BITS_FAST(match_len & mz_bitmasks[s_tdefl_len_extra[match_len]], s_tdefl_len_extra[match_len]);
1127
1128
                /* This sequence coaxes MSVC into using cmov's vs. jmp's. */
1129
                s0 = s_tdefl_small_dist_sym[match_dist & 511];
1130
                n0 = s_tdefl_small_dist_extra[match_dist & 511];
1131
                s1 = s_tdefl_large_dist_sym[match_dist >> 8];
1132
                n1 = s_tdefl_large_dist_extra[match_dist >> 8];
1133
                sym = (match_dist < 512) ? s0 : s1;
1134
                num_extra_bits = (match_dist < 512) ? n0 : n1;
1135
1136
                MZ_ASSERT(d->m_huff_code_sizes[1][sym]);
1137
                TDEFL_PUT_BITS_FAST(d->m_huff_codes[1][sym], d->m_huff_code_sizes[1][sym]);
1138
                TDEFL_PUT_BITS_FAST(match_dist & mz_bitmasks[num_extra_bits], num_extra_bits);
1139
            }
1140
            else
1141
            {
1142
                mz_uint lit = *pLZ_codes++;
1143
                MZ_ASSERT(d->m_huff_code_sizes[0][lit]);
1144
                TDEFL_PUT_BITS_FAST(d->m_huff_codes[0][lit], d->m_huff_code_sizes[0][lit]);
1145
1146
                if (((flags & 2) == 0) && (pLZ_codes < pLZ_code_buf_end))
1147
                {
1148
                    flags >>= 1;
1149
                    lit = *pLZ_codes++;
1150
                    MZ_ASSERT(d->m_huff_code_sizes[0][lit]);
1151
                    TDEFL_PUT_BITS_FAST(d->m_huff_codes[0][lit], d->m_huff_code_sizes[0][lit]);
1152
1153
                    if (((flags & 2) == 0) && (pLZ_codes < pLZ_code_buf_end))
1154
                    {
1155
                        flags >>= 1;
1156
                        lit = *pLZ_codes++;
1157
                        MZ_ASSERT(d->m_huff_code_sizes[0][lit]);
1158
                        TDEFL_PUT_BITS_FAST(d->m_huff_codes[0][lit], d->m_huff_code_sizes[0][lit]);
1159
                    }
1160
                }
1161
            }
1162
1163
            if (pOutput_buf >= d->m_pOutput_buf_end)
1164
                return MZ_FALSE;
1165
1166
            memcpy(pOutput_buf, &bit_buffer, sizeof(mz_uint64));
1167
            pOutput_buf += (bits_in >> 3);
1168
            bit_buffer >>= (bits_in & ~7);
1169
            bits_in &= 7;
1170
        }
1171
1172
#undef TDEFL_PUT_BITS_FAST
1173
1174
        d->m_pOutput_buf = pOutput_buf;
1175
        d->m_bits_in = 0;
1176
        d->m_bit_buffer = 0;
1177
1178
        while (bits_in)
1179
        {
1180
            mz_uint32 n = MZ_MIN(bits_in, 16);
1181
            TDEFL_PUT_BITS((mz_uint)bit_buffer & mz_bitmasks[n], n);
1182
            bit_buffer >>= n;
1183
            bits_in -= n;
1184
        }
1185
1186
        TDEFL_PUT_BITS(d->m_huff_codes[0][256], d->m_huff_code_sizes[0][256]);
1187
1188
        return (d->m_pOutput_buf < d->m_pOutput_buf_end);
1189
    }
1190
#else
1191
static mz_bool tdefl_compress_lz_codes(tdefl_compressor *d)
1192
44.9k
{
1193
44.9k
    mz_uint flags;
1194
44.9k
    mz_uint8 *pLZ_codes;
1195
1196
44.9k
    flags = 1;
1197
960M
    for (pLZ_codes = d->m_lz_code_buf; pLZ_codes < d->m_pLZ_code_buf; flags >>= 1)
1198
960M
    {
1199
960M
        if (flags == 1)
1200
120M
            flags = *pLZ_codes++ | 0x100;
1201
960M
        if (flags & 1)
1202
14.4M
        {
1203
14.4M
            mz_uint sym, num_extra_bits;
1204
14.4M
            mz_uint match_len = pLZ_codes[0], match_dist = (pLZ_codes[1] | (pLZ_codes[2] << 8));
1205
14.4M
            pLZ_codes += 3;
1206
1207
14.4M
            MZ_ASSERT(d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]);
1208
14.4M
            TDEFL_PUT_BITS(d->m_huff_codes[0][s_tdefl_len_sym[match_len]], d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]);
1209
14.4M
            TDEFL_PUT_BITS(match_len & mz_bitmasks[s_tdefl_len_extra[match_len]], s_tdefl_len_extra[match_len]);
1210
1211
14.4M
            if (match_dist < 512)
1212
7.21M
            {
1213
7.21M
                sym = s_tdefl_small_dist_sym[match_dist];
1214
7.21M
                num_extra_bits = s_tdefl_small_dist_extra[match_dist];
1215
7.21M
            }
1216
7.18M
            else
1217
7.18M
            {
1218
7.18M
                sym = s_tdefl_large_dist_sym[match_dist >> 8];
1219
7.18M
                num_extra_bits = s_tdefl_large_dist_extra[match_dist >> 8];
1220
7.18M
            }
1221
14.4M
            MZ_ASSERT(d->m_huff_code_sizes[1][sym]);
1222
14.4M
            TDEFL_PUT_BITS(d->m_huff_codes[1][sym], d->m_huff_code_sizes[1][sym]);
1223
14.4M
            TDEFL_PUT_BITS(match_dist & mz_bitmasks[num_extra_bits], num_extra_bits);
1224
14.4M
        }
1225
946M
        else
1226
946M
        {
1227
946M
            mz_uint lit = *pLZ_codes++;
1228
946M
            MZ_ASSERT(d->m_huff_code_sizes[0][lit]);
1229
946M
            TDEFL_PUT_BITS(d->m_huff_codes[0][lit], d->m_huff_code_sizes[0][lit]);
1230
946M
        }
1231
960M
    }
1232
1233
44.9k
    TDEFL_PUT_BITS(d->m_huff_codes[0][256], d->m_huff_code_sizes[0][256]);
1234
1235
44.9k
    return (d->m_pOutput_buf < d->m_pOutput_buf_end);
1236
44.9k
}
1237
#endif /* MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN && MINIZ_HAS_64BIT_REGISTERS */
1238
1239
    static mz_bool tdefl_compress_block(tdefl_compressor *d, mz_bool static_block)
1240
44.9k
    {
1241
44.9k
        if (static_block)
1242
6.17k
            tdefl_start_static_block(d);
1243
38.7k
        else
1244
38.7k
            tdefl_start_dynamic_block(d);
1245
44.9k
        return tdefl_compress_lz_codes(d);
1246
44.9k
    }
1247
1248
    static const mz_uint s_tdefl_num_probes[11] = { 0, 1, 6, 32, 16, 32, 128, 256, 512, 768, 1500 };
1249
1250
    static int tdefl_flush_block(tdefl_compressor *d, int flush)
1251
44.9k
    {
1252
44.9k
        mz_uint saved_bit_buf, saved_bits_in;
1253
44.9k
        mz_uint8 *pSaved_output_buf;
1254
44.9k
        mz_bool comp_block_succeeded = MZ_FALSE;
1255
44.9k
        int n, use_raw_block = ((d->m_flags & TDEFL_FORCE_ALL_RAW_BLOCKS) != 0) && (d->m_lookahead_pos - d->m_lz_code_buf_dict_pos) <= d->m_dict_size;
1256
44.9k
        mz_uint8 *pOutput_buf_start = ((d->m_pPut_buf_func == NULL) && ((*d->m_pOut_buf_size - d->m_out_buf_ofs) >= TDEFL_OUT_BUF_SIZE)) ? ((mz_uint8 *)d->m_pOut_buf + d->m_out_buf_ofs) : d->m_output_buf;
1257
1258
44.9k
        d->m_pOutput_buf = pOutput_buf_start;
1259
44.9k
        d->m_pOutput_buf_end = d->m_pOutput_buf + TDEFL_OUT_BUF_SIZE - 16;
1260
1261
44.9k
        MZ_ASSERT(!d->m_output_flush_remaining);
1262
44.9k
        d->m_output_flush_ofs = 0;
1263
44.9k
        d->m_output_flush_remaining = 0;
1264
1265
44.9k
        *d->m_pLZ_flags = (mz_uint8)(*d->m_pLZ_flags >> d->m_num_flags_left);
1266
44.9k
        d->m_pLZ_code_buf -= (d->m_num_flags_left == 8);
1267
1268
44.9k
        if ((d->m_flags & TDEFL_WRITE_ZLIB_HEADER) && (!d->m_block_index))
1269
14.2k
        {
1270
14.2k
            const mz_uint8 cmf = 0x78;
1271
14.2k
            mz_uint8 flg, flevel = 3;
1272
14.2k
            mz_uint header, i, mz_un = sizeof(s_tdefl_num_probes) / sizeof(mz_uint);
1273
1274
            /* Determine compression level by reversing the process in tdefl_create_comp_flags_from_zip_params() */
1275
83.1k
            for (i = 0; i < mz_un; i++)
1276
83.1k
                if (s_tdefl_num_probes[i] == (d->m_flags & 0xFFF))
1277
14.2k
                    break;
1278
1279
14.2k
            if (i < 2)
1280
2.56k
                flevel = 0;
1281
11.6k
            else if (i < 6)
1282
2.56k
                flevel = 1;
1283
9.09k
            else if (i == 6)
1284
5.99k
                flevel = 2;
1285
1286
14.2k
            header = cmf << 8 | (flevel << 6);
1287
14.2k
            header += 31 - (header % 31);
1288
14.2k
            flg = header & 0xFF;
1289
1290
14.2k
            TDEFL_PUT_BITS(cmf, 8);
1291
14.2k
            TDEFL_PUT_BITS(flg, 8);
1292
14.2k
        }
1293
1294
44.9k
        TDEFL_PUT_BITS(flush == TDEFL_FINISH, 1);
1295
1296
44.9k
        pSaved_output_buf = d->m_pOutput_buf;
1297
44.9k
        saved_bit_buf = d->m_bit_buffer;
1298
44.9k
        saved_bits_in = d->m_bits_in;
1299
1300
44.9k
        if (!use_raw_block)
1301
44.9k
            comp_block_succeeded = tdefl_compress_block(d, (d->m_flags & TDEFL_FORCE_ALL_STATIC_BLOCKS) || (d->m_total_lz_bytes < 48));
1302
1303
        /* If the block gets expanded, forget the current contents of the output buffer and send a raw block instead. */
1304
44.9k
        if (((use_raw_block) || ((d->m_total_lz_bytes) && ((d->m_pOutput_buf - pSaved_output_buf + 1U) >= d->m_total_lz_bytes))) &&
1305
13.9k
            ((d->m_lookahead_pos - d->m_lz_code_buf_dict_pos) <= d->m_dict_size))
1306
13.9k
        {
1307
13.9k
            mz_uint i;
1308
13.9k
            d->m_pOutput_buf = pSaved_output_buf;
1309
13.9k
            d->m_bit_buffer = saved_bit_buf, d->m_bits_in = saved_bits_in;
1310
13.9k
            TDEFL_PUT_BITS(0, 2);
1311
13.9k
            if (d->m_bits_in)
1312
13.5k
            {
1313
13.5k
                TDEFL_PUT_BITS(0, 8 - d->m_bits_in);
1314
13.5k
            }
1315
41.7k
            for (i = 2; i; --i, d->m_total_lz_bytes ^= 0xFFFF)
1316
27.8k
            {
1317
27.8k
                TDEFL_PUT_BITS(d->m_total_lz_bytes & 0xFFFF, 16);
1318
27.8k
            }
1319
219M
            for (i = 0; i < d->m_total_lz_bytes; ++i)
1320
219M
            {
1321
219M
                TDEFL_PUT_BITS(d->m_dict[(d->m_lz_code_buf_dict_pos + i) & TDEFL_LZ_DICT_SIZE_MASK], 8);
1322
219M
            }
1323
13.9k
        }
1324
        /* Check for the extremely unlikely (if not impossible) case of the compressed block not fitting into the output buffer when using dynamic codes. */
1325
31.0k
        else if (!comp_block_succeeded)
1326
0
        {
1327
0
            d->m_pOutput_buf = pSaved_output_buf;
1328
0
            d->m_bit_buffer = saved_bit_buf, d->m_bits_in = saved_bits_in;
1329
0
            tdefl_compress_block(d, MZ_TRUE);
1330
0
        }
1331
1332
44.9k
        if (flush)
1333
18.8k
        {
1334
18.8k
            if (flush == TDEFL_FINISH)
1335
17.2k
            {
1336
17.2k
                if (d->m_bits_in)
1337
10.1k
                {
1338
10.1k
                    TDEFL_PUT_BITS(0, 8 - d->m_bits_in);
1339
10.1k
                }
1340
17.2k
                if (d->m_flags & TDEFL_WRITE_ZLIB_HEADER)
1341
14.2k
                {
1342
14.2k
                    mz_uint i, a = d->m_adler32;
1343
71.0k
                    for (i = 0; i < 4; i++)
1344
56.8k
                    {
1345
56.8k
                        TDEFL_PUT_BITS((a >> 24) & 0xFF, 8);
1346
56.8k
                        a <<= 8;
1347
56.8k
                    }
1348
14.2k
                }
1349
17.2k
            }
1350
1.65k
            else
1351
1.65k
            {
1352
1.65k
                mz_uint i, z = 0;
1353
1.65k
                TDEFL_PUT_BITS(0, 3);
1354
1.65k
                if (d->m_bits_in)
1355
1.65k
                {
1356
1.65k
                    TDEFL_PUT_BITS(0, 8 - d->m_bits_in);
1357
1.65k
                }
1358
4.95k
                for (i = 2; i; --i, z ^= 0xFFFF)
1359
3.30k
                {
1360
3.30k
                    TDEFL_PUT_BITS(z & 0xFFFF, 16);
1361
3.30k
                }
1362
1.65k
            }
1363
18.8k
        }
1364
1365
44.9k
        MZ_ASSERT(d->m_pOutput_buf < d->m_pOutput_buf_end);
1366
1367
44.9k
        memset(&d->m_huff_count[0][0], 0, sizeof(d->m_huff_count[0][0]) * TDEFL_MAX_HUFF_SYMBOLS_0);
1368
44.9k
        memset(&d->m_huff_count[1][0], 0, sizeof(d->m_huff_count[1][0]) * TDEFL_MAX_HUFF_SYMBOLS_1);
1369
1370
44.9k
        d->m_pLZ_code_buf = d->m_lz_code_buf + 1;
1371
44.9k
        d->m_pLZ_flags = d->m_lz_code_buf;
1372
44.9k
        d->m_num_flags_left = 8;
1373
44.9k
        d->m_lz_code_buf_dict_pos += d->m_total_lz_bytes;
1374
44.9k
        d->m_total_lz_bytes = 0;
1375
44.9k
        d->m_block_index++;
1376
1377
44.9k
        if ((n = (int)(d->m_pOutput_buf - pOutput_buf_start)) != 0)
1378
44.9k
        {
1379
44.9k
            if (d->m_pPut_buf_func)
1380
5.23k
            {
1381
5.23k
                *d->m_pIn_buf_size = d->m_pSrc - (const mz_uint8 *)d->m_pIn_buf;
1382
5.23k
                if (!(*d->m_pPut_buf_func)(d->m_output_buf, n, d->m_pPut_buf_user))
1383
0
                    return (d->m_prev_return_status = TDEFL_STATUS_PUT_BUF_FAILED);
1384
5.23k
            }
1385
39.7k
            else if (pOutput_buf_start == d->m_output_buf)
1386
17.3k
            {
1387
17.3k
                int bytes_to_copy = (int)MZ_MIN((size_t)n, (size_t)(*d->m_pOut_buf_size - d->m_out_buf_ofs));
1388
17.3k
                memcpy((mz_uint8 *)d->m_pOut_buf + d->m_out_buf_ofs, d->m_output_buf, bytes_to_copy);
1389
17.3k
                d->m_out_buf_ofs += bytes_to_copy;
1390
17.3k
                if ((n -= bytes_to_copy) != 0)
1391
6.00k
                {
1392
6.00k
                    d->m_output_flush_ofs = bytes_to_copy;
1393
6.00k
                    d->m_output_flush_remaining = n;
1394
6.00k
                }
1395
17.3k
            }
1396
22.3k
            else
1397
22.3k
            {
1398
22.3k
                d->m_out_buf_ofs += n;
1399
22.3k
            }
1400
44.9k
        }
1401
1402
44.9k
        return d->m_output_flush_remaining;
1403
44.9k
    }
1404
1405
#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES
1406
#ifdef MINIZ_UNALIGNED_USE_MEMCPY
1407
    static mz_uint16 TDEFL_READ_UNALIGNED_WORD(const mz_uint8 *p)
1408
    {
1409
        mz_uint16 ret;
1410
        memcpy(&ret, p, sizeof(mz_uint16));
1411
        return ret;
1412
    }
1413
    static mz_uint16 TDEFL_READ_UNALIGNED_WORD2(const mz_uint16 *p)
1414
    {
1415
        mz_uint16 ret;
1416
        memcpy(&ret, p, sizeof(mz_uint16));
1417
        return ret;
1418
    }
1419
#else
1420
#define TDEFL_READ_UNALIGNED_WORD(p) *(const mz_uint16 *)(p)
1421
#define TDEFL_READ_UNALIGNED_WORD2(p) *(const mz_uint16 *)(p)
1422
#endif
1423
    static MZ_FORCEINLINE void tdefl_find_match(tdefl_compressor *d, mz_uint lookahead_pos, mz_uint max_dist, mz_uint max_match_len, mz_uint *pMatch_dist, mz_uint *pMatch_len)
1424
    {
1425
        mz_uint dist, pos = lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK, match_len = *pMatch_len, probe_pos = pos, next_probe_pos, probe_len;
1426
        mz_uint num_probes_left = d->m_max_probes[match_len >= 32];
1427
        const mz_uint16 *s = (const mz_uint16 *)(d->m_dict + pos), *p, *q;
1428
        mz_uint16 c01 = TDEFL_READ_UNALIGNED_WORD(&d->m_dict[pos + match_len - 1]), s01 = TDEFL_READ_UNALIGNED_WORD2(s);
1429
        MZ_ASSERT(max_match_len <= TDEFL_MAX_MATCH_LEN);
1430
        if (max_match_len <= match_len)
1431
            return;
1432
        for (;;)
1433
        {
1434
            for (;;)
1435
            {
1436
                if (--num_probes_left == 0)
1437
                    return;
1438
#define TDEFL_PROBE                                                                             \
1439
    next_probe_pos = d->m_next[probe_pos];                                                      \
1440
    if ((!next_probe_pos) || ((dist = (mz_uint16)(lookahead_pos - next_probe_pos)) > max_dist)) \
1441
        return;                                                                                 \
1442
    probe_pos = next_probe_pos & TDEFL_LZ_DICT_SIZE_MASK;                                       \
1443
    if (TDEFL_READ_UNALIGNED_WORD(&d->m_dict[probe_pos + match_len - 1]) == c01)                \
1444
        break;
1445
                TDEFL_PROBE;
1446
                TDEFL_PROBE;
1447
                TDEFL_PROBE;
1448
            }
1449
            if (!dist)
1450
                break;
1451
            q = (const mz_uint16 *)(d->m_dict + probe_pos);
1452
            if (TDEFL_READ_UNALIGNED_WORD2(q) != s01)
1453
                continue;
1454
            p = s;
1455
            probe_len = 32;
1456
            do
1457
            {
1458
            } while ((TDEFL_READ_UNALIGNED_WORD2(++p) == TDEFL_READ_UNALIGNED_WORD2(++q)) && (TDEFL_READ_UNALIGNED_WORD2(++p) == TDEFL_READ_UNALIGNED_WORD2(++q)) &&
1459
                     (TDEFL_READ_UNALIGNED_WORD2(++p) == TDEFL_READ_UNALIGNED_WORD2(++q)) && (TDEFL_READ_UNALIGNED_WORD2(++p) == TDEFL_READ_UNALIGNED_WORD2(++q)) && (--probe_len > 0));
1460
            if (!probe_len)
1461
            {
1462
                *pMatch_dist = dist;
1463
                *pMatch_len = MZ_MIN(max_match_len, (mz_uint)TDEFL_MAX_MATCH_LEN);
1464
                break;
1465
            }
1466
            else if ((probe_len = ((mz_uint)(p - s) * 2) + (mz_uint)(*(const mz_uint8 *)p == *(const mz_uint8 *)q)) > match_len)
1467
            {
1468
                *pMatch_dist = dist;
1469
                if ((*pMatch_len = match_len = MZ_MIN(max_match_len, probe_len)) == max_match_len)
1470
                    break;
1471
                c01 = TDEFL_READ_UNALIGNED_WORD(&d->m_dict[pos + match_len - 1]);
1472
            }
1473
        }
1474
    }
1475
#else
1476
static MZ_FORCEINLINE void tdefl_find_match(tdefl_compressor *d, mz_uint lookahead_pos, mz_uint max_dist, mz_uint max_match_len, mz_uint *pMatch_dist, mz_uint *pMatch_len)
1477
964M
{
1478
964M
    mz_uint dist, pos = lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK, match_len = *pMatch_len, probe_pos = pos, next_probe_pos, probe_len;
1479
964M
    mz_uint num_probes_left = d->m_max_probes[match_len >= 32];
1480
964M
    const mz_uint8 *s = d->m_dict + pos, *p, *q;
1481
964M
    mz_uint8 c0 = d->m_dict[pos + match_len], c1 = d->m_dict[pos + match_len - 1];
1482
964M
    MZ_ASSERT(max_match_len <= TDEFL_MAX_MATCH_LEN);
1483
964M
    if (max_match_len <= match_len)
1484
27.5k
        return;
1485
964M
    for (;;)
1486
1.34G
    {
1487
1.34G
        for (;;)
1488
2.25G
        {
1489
2.25G
            if (--num_probes_left == 0)
1490
70.4M
                return;
1491
2.18G
#define TDEFL_PROBE                                                                               \
1492
4.78G
    next_probe_pos = d->m_next[probe_pos];                                                        \
1493
4.78G
    if ((!next_probe_pos) || ((dist = (mz_uint16)(lookahead_pos - next_probe_pos)) > max_dist))   \
1494
4.78G
        return;                                                                                   \
1495
4.78G
    probe_pos = next_probe_pos & TDEFL_LZ_DICT_SIZE_MASK;                                         \
1496
3.88G
    if ((d->m_dict[probe_pos + match_len] == c0) && (d->m_dict[probe_pos + match_len - 1] == c1)) \
1497
3.88G
        break;
1498
5.45G
            TDEFL_PROBE;
1499
5.45G
            TDEFL_PROBE;
1500
2.29G
            TDEFL_PROBE;
1501
1.83G
        }
1502
385M
        if (!dist)
1503
10.9k
            break;
1504
385M
        p = s;
1505
385M
        q = d->m_dict + probe_pos;
1506
981M
        for (probe_len = 0; probe_len < max_match_len; probe_len++)
1507
980M
            if (*p++ != *q++)
1508
384M
                break;
1509
385M
        if (probe_len > match_len)
1510
24.0M
        {
1511
24.0M
            *pMatch_dist = dist;
1512
24.0M
            if ((*pMatch_len = match_len = probe_len) == max_match_len)
1513
1.04M
                return;
1514
22.9M
            c0 = d->m_dict[pos + match_len];
1515
22.9M
            c1 = d->m_dict[pos + match_len - 1];
1516
22.9M
        }
1517
385M
    }
1518
964M
}
1519
#endif /* #if MINIZ_USE_UNALIGNED_LOADS_AND_STORES */
1520
1521
#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN
1522
#ifdef MINIZ_UNALIGNED_USE_MEMCPY
1523
    static mz_uint32 TDEFL_READ_UNALIGNED_WORD32(const mz_uint8 *p)
1524
    {
1525
        mz_uint32 ret;
1526
        memcpy(&ret, p, sizeof(mz_uint32));
1527
        return ret;
1528
    }
1529
#else
1530
#define TDEFL_READ_UNALIGNED_WORD32(p) *(const mz_uint32 *)(p)
1531
#endif
1532
    static mz_bool tdefl_compress_fast(tdefl_compressor *d)
1533
    {
1534
        /* Faster, minimally featured LZRW1-style match+parse loop with better register utilization. Intended for applications where raw throughput is valued more highly than ratio. */
1535
        mz_uint lookahead_pos = d->m_lookahead_pos, lookahead_size = d->m_lookahead_size, dict_size = d->m_dict_size, total_lz_bytes = d->m_total_lz_bytes, num_flags_left = d->m_num_flags_left;
1536
        mz_uint8 *pLZ_code_buf = d->m_pLZ_code_buf, *pLZ_flags = d->m_pLZ_flags;
1537
        mz_uint cur_pos = lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK;
1538
1539
        while ((d->m_src_buf_left) || ((d->m_flush) && (lookahead_size)))
1540
        {
1541
            const mz_uint TDEFL_COMP_FAST_LOOKAHEAD_SIZE = 4096;
1542
            mz_uint dst_pos = (lookahead_pos + lookahead_size) & TDEFL_LZ_DICT_SIZE_MASK;
1543
            mz_uint num_bytes_to_process = (mz_uint)MZ_MIN(d->m_src_buf_left, TDEFL_COMP_FAST_LOOKAHEAD_SIZE - lookahead_size);
1544
            d->m_src_buf_left -= num_bytes_to_process;
1545
            lookahead_size += num_bytes_to_process;
1546
1547
            while (num_bytes_to_process)
1548
            {
1549
                mz_uint32 n = MZ_MIN(TDEFL_LZ_DICT_SIZE - dst_pos, num_bytes_to_process);
1550
                memcpy(d->m_dict + dst_pos, d->m_pSrc, n);
1551
                if (dst_pos < (TDEFL_MAX_MATCH_LEN - 1))
1552
                    memcpy(d->m_dict + TDEFL_LZ_DICT_SIZE + dst_pos, d->m_pSrc, MZ_MIN(n, (TDEFL_MAX_MATCH_LEN - 1) - dst_pos));
1553
                d->m_pSrc += n;
1554
                dst_pos = (dst_pos + n) & TDEFL_LZ_DICT_SIZE_MASK;
1555
                num_bytes_to_process -= n;
1556
            }
1557
1558
            dict_size = MZ_MIN(TDEFL_LZ_DICT_SIZE - lookahead_size, dict_size);
1559
            if ((!d->m_flush) && (lookahead_size < TDEFL_COMP_FAST_LOOKAHEAD_SIZE))
1560
                break;
1561
1562
            while (lookahead_size >= 4)
1563
            {
1564
                mz_uint cur_match_dist, cur_match_len = 1;
1565
                mz_uint8 *pCur_dict = d->m_dict + cur_pos;
1566
                mz_uint first_trigram = TDEFL_READ_UNALIGNED_WORD32(pCur_dict) & 0xFFFFFF;
1567
                mz_uint hash = (first_trigram ^ (first_trigram >> (24 - (TDEFL_LZ_HASH_BITS - 8)))) & TDEFL_LEVEL1_HASH_SIZE_MASK;
1568
                mz_uint probe_pos = d->m_hash[hash];
1569
                d->m_hash[hash] = (mz_uint16)lookahead_pos;
1570
1571
                if (((cur_match_dist = (mz_uint16)(lookahead_pos - probe_pos)) <= dict_size) && ((TDEFL_READ_UNALIGNED_WORD32(d->m_dict + (probe_pos &= TDEFL_LZ_DICT_SIZE_MASK)) & 0xFFFFFF) == first_trigram))
1572
                {
1573
                    const mz_uint16 *p = (const mz_uint16 *)pCur_dict;
1574
                    const mz_uint16 *q = (const mz_uint16 *)(d->m_dict + probe_pos);
1575
                    mz_uint32 probe_len = 32;
1576
                    do
1577
                    {
1578
                    } while ((TDEFL_READ_UNALIGNED_WORD2(++p) == TDEFL_READ_UNALIGNED_WORD2(++q)) && (TDEFL_READ_UNALIGNED_WORD2(++p) == TDEFL_READ_UNALIGNED_WORD2(++q)) &&
1579
                             (TDEFL_READ_UNALIGNED_WORD2(++p) == TDEFL_READ_UNALIGNED_WORD2(++q)) && (TDEFL_READ_UNALIGNED_WORD2(++p) == TDEFL_READ_UNALIGNED_WORD2(++q)) && (--probe_len > 0));
1580
                    cur_match_len = ((mz_uint)(p - (const mz_uint16 *)pCur_dict) * 2) + (mz_uint)(*(const mz_uint8 *)p == *(const mz_uint8 *)q);
1581
                    if (!probe_len)
1582
                        cur_match_len = cur_match_dist ? TDEFL_MAX_MATCH_LEN : 0;
1583
1584
                    if ((cur_match_len < TDEFL_MIN_MATCH_LEN) || ((cur_match_len == TDEFL_MIN_MATCH_LEN) && (cur_match_dist >= 8U * 1024U)))
1585
                    {
1586
                        cur_match_len = 1;
1587
                        *pLZ_code_buf++ = (mz_uint8)first_trigram;
1588
                        *pLZ_flags = (mz_uint8)(*pLZ_flags >> 1);
1589
                        d->m_huff_count[0][(mz_uint8)first_trigram]++;
1590
                    }
1591
                    else
1592
                    {
1593
                        mz_uint32 s0, s1;
1594
                        cur_match_len = MZ_MIN(cur_match_len, lookahead_size);
1595
1596
                        MZ_ASSERT((cur_match_len >= TDEFL_MIN_MATCH_LEN) && (cur_match_dist >= 1) && (cur_match_dist <= TDEFL_LZ_DICT_SIZE));
1597
1598
                        cur_match_dist--;
1599
1600
                        pLZ_code_buf[0] = (mz_uint8)(cur_match_len - TDEFL_MIN_MATCH_LEN);
1601
#ifdef MINIZ_UNALIGNED_USE_MEMCPY
1602
                        memcpy(&pLZ_code_buf[1], &cur_match_dist, sizeof(cur_match_dist));
1603
#else
1604
                        *(mz_uint16 *)(&pLZ_code_buf[1]) = (mz_uint16)cur_match_dist;
1605
#endif
1606
                        pLZ_code_buf += 3;
1607
                        *pLZ_flags = (mz_uint8)((*pLZ_flags >> 1) | 0x80);
1608
1609
                        s0 = s_tdefl_small_dist_sym[cur_match_dist & 511];
1610
                        s1 = s_tdefl_large_dist_sym[cur_match_dist >> 8];
1611
                        d->m_huff_count[1][(cur_match_dist < 512) ? s0 : s1]++;
1612
1613
                        d->m_huff_count[0][s_tdefl_len_sym[cur_match_len - TDEFL_MIN_MATCH_LEN]]++;
1614
                    }
1615
                }
1616
                else
1617
                {
1618
                    *pLZ_code_buf++ = (mz_uint8)first_trigram;
1619
                    *pLZ_flags = (mz_uint8)(*pLZ_flags >> 1);
1620
                    d->m_huff_count[0][(mz_uint8)first_trigram]++;
1621
                }
1622
1623
                if (--num_flags_left == 0)
1624
                {
1625
                    num_flags_left = 8;
1626
                    pLZ_flags = pLZ_code_buf++;
1627
                }
1628
1629
                total_lz_bytes += cur_match_len;
1630
                lookahead_pos += cur_match_len;
1631
                dict_size = MZ_MIN(dict_size + cur_match_len, (mz_uint)TDEFL_LZ_DICT_SIZE);
1632
                cur_pos = (cur_pos + cur_match_len) & TDEFL_LZ_DICT_SIZE_MASK;
1633
                MZ_ASSERT(lookahead_size >= cur_match_len);
1634
                lookahead_size -= cur_match_len;
1635
1636
                if (pLZ_code_buf > &d->m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE - 8])
1637
                {
1638
                    int n;
1639
                    d->m_lookahead_pos = lookahead_pos;
1640
                    d->m_lookahead_size = lookahead_size;
1641
                    d->m_dict_size = dict_size;
1642
                    d->m_total_lz_bytes = total_lz_bytes;
1643
                    d->m_pLZ_code_buf = pLZ_code_buf;
1644
                    d->m_pLZ_flags = pLZ_flags;
1645
                    d->m_num_flags_left = num_flags_left;
1646
                    if ((n = tdefl_flush_block(d, 0)) != 0)
1647
                        return (n < 0) ? MZ_FALSE : MZ_TRUE;
1648
                    total_lz_bytes = d->m_total_lz_bytes;
1649
                    pLZ_code_buf = d->m_pLZ_code_buf;
1650
                    pLZ_flags = d->m_pLZ_flags;
1651
                    num_flags_left = d->m_num_flags_left;
1652
                }
1653
            }
1654
1655
            while (lookahead_size)
1656
            {
1657
                mz_uint8 lit = d->m_dict[cur_pos];
1658
1659
                total_lz_bytes++;
1660
                *pLZ_code_buf++ = lit;
1661
                *pLZ_flags = (mz_uint8)(*pLZ_flags >> 1);
1662
                if (--num_flags_left == 0)
1663
                {
1664
                    num_flags_left = 8;
1665
                    pLZ_flags = pLZ_code_buf++;
1666
                }
1667
1668
                d->m_huff_count[0][lit]++;
1669
1670
                lookahead_pos++;
1671
                dict_size = MZ_MIN(dict_size + 1, (mz_uint)TDEFL_LZ_DICT_SIZE);
1672
                cur_pos = (cur_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK;
1673
                lookahead_size--;
1674
1675
                if (pLZ_code_buf > &d->m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE - 8])
1676
                {
1677
                    int n;
1678
                    d->m_lookahead_pos = lookahead_pos;
1679
                    d->m_lookahead_size = lookahead_size;
1680
                    d->m_dict_size = dict_size;
1681
                    d->m_total_lz_bytes = total_lz_bytes;
1682
                    d->m_pLZ_code_buf = pLZ_code_buf;
1683
                    d->m_pLZ_flags = pLZ_flags;
1684
                    d->m_num_flags_left = num_flags_left;
1685
                    if ((n = tdefl_flush_block(d, 0)) != 0)
1686
                        return (n < 0) ? MZ_FALSE : MZ_TRUE;
1687
                    total_lz_bytes = d->m_total_lz_bytes;
1688
                    pLZ_code_buf = d->m_pLZ_code_buf;
1689
                    pLZ_flags = d->m_pLZ_flags;
1690
                    num_flags_left = d->m_num_flags_left;
1691
                }
1692
            }
1693
        }
1694
1695
        d->m_lookahead_pos = lookahead_pos;
1696
        d->m_lookahead_size = lookahead_size;
1697
        d->m_dict_size = dict_size;
1698
        d->m_total_lz_bytes = total_lz_bytes;
1699
        d->m_pLZ_code_buf = pLZ_code_buf;
1700
        d->m_pLZ_flags = pLZ_flags;
1701
        d->m_num_flags_left = num_flags_left;
1702
        return MZ_TRUE;
1703
    }
1704
#endif /* MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN */
1705
1706
    static MZ_FORCEINLINE void tdefl_record_literal(tdefl_compressor *d, mz_uint8 lit)
1707
946M
    {
1708
946M
        d->m_total_lz_bytes++;
1709
946M
        *d->m_pLZ_code_buf++ = lit;
1710
946M
        *d->m_pLZ_flags = (mz_uint8)(*d->m_pLZ_flags >> 1);
1711
946M
        if (--d->m_num_flags_left == 0)
1712
118M
        {
1713
118M
            d->m_num_flags_left = 8;
1714
118M
            d->m_pLZ_flags = d->m_pLZ_code_buf++;
1715
118M
        }
1716
946M
        d->m_huff_count[0][lit]++;
1717
946M
    }
1718
1719
    static MZ_FORCEINLINE void tdefl_record_match(tdefl_compressor *d, mz_uint match_len, mz_uint match_dist)
1720
14.4M
    {
1721
14.4M
        mz_uint32 s0, s1;
1722
1723
14.4M
        MZ_ASSERT((match_len >= TDEFL_MIN_MATCH_LEN) && (match_dist >= 1) && (match_dist <= TDEFL_LZ_DICT_SIZE));
1724
1725
14.4M
        d->m_total_lz_bytes += match_len;
1726
1727
14.4M
        d->m_pLZ_code_buf[0] = (mz_uint8)(match_len - TDEFL_MIN_MATCH_LEN);
1728
1729
14.4M
        match_dist -= 1;
1730
14.4M
        d->m_pLZ_code_buf[1] = (mz_uint8)(match_dist & 0xFF);
1731
14.4M
        d->m_pLZ_code_buf[2] = (mz_uint8)(match_dist >> 8);
1732
14.4M
        d->m_pLZ_code_buf += 3;
1733
1734
14.4M
        *d->m_pLZ_flags = (mz_uint8)((*d->m_pLZ_flags >> 1) | 0x80);
1735
14.4M
        if (--d->m_num_flags_left == 0)
1736
1.80M
        {
1737
1.80M
            d->m_num_flags_left = 8;
1738
1.80M
            d->m_pLZ_flags = d->m_pLZ_code_buf++;
1739
1.80M
        }
1740
1741
14.4M
        s0 = s_tdefl_small_dist_sym[match_dist & 511];
1742
14.4M
        s1 = s_tdefl_large_dist_sym[(match_dist >> 8) & 127];
1743
14.4M
        d->m_huff_count[1][(match_dist < 512) ? s0 : s1]++;
1744
14.4M
        d->m_huff_count[0][s_tdefl_len_sym[match_len - TDEFL_MIN_MATCH_LEN]]++;
1745
14.4M
    }
1746
1747
    static mz_bool tdefl_compress_normal(tdefl_compressor *d)
1748
194M
    {
1749
194M
        const mz_uint8 *pSrc = d->m_pSrc;
1750
194M
        size_t src_buf_left = d->m_src_buf_left;
1751
194M
        tdefl_flush flush = d->m_flush;
1752
1753
1.15G
        while ((src_buf_left) || ((flush) && (d->m_lookahead_size)))
1754
1.01G
        {
1755
1.01G
            mz_uint len_to_move, cur_match_dist, cur_match_len, cur_pos;
1756
            /* Update dictionary and hash chains. Keeps the lookahead size equal to TDEFL_MAX_MATCH_LEN. */
1757
1.01G
            if ((d->m_lookahead_size + d->m_dict_size) >= (TDEFL_MIN_MATCH_LEN - 1))
1758
1.01G
            {
1759
1.01G
                mz_uint dst_pos = (d->m_lookahead_pos + d->m_lookahead_size) & TDEFL_LZ_DICT_SIZE_MASK, ins_pos = d->m_lookahead_pos + d->m_lookahead_size - 2;
1760
1.01G
                mz_uint hash = (d->m_dict[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] << TDEFL_LZ_HASH_SHIFT) ^ d->m_dict[(ins_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK];
1761
1.01G
                mz_uint num_bytes_to_process = (mz_uint)MZ_MIN(src_buf_left, TDEFL_MAX_MATCH_LEN - d->m_lookahead_size);
1762
1.01G
                const mz_uint8 *pSrc_end = pSrc ? pSrc + num_bytes_to_process : NULL;
1763
1.01G
                src_buf_left -= num_bytes_to_process;
1764
1.01G
                d->m_lookahead_size += num_bytes_to_process;
1765
2.37G
                while (pSrc != pSrc_end)
1766
1.36G
                {
1767
1.36G
                    mz_uint8 c = *pSrc++;
1768
1.36G
                    d->m_dict[dst_pos] = c;
1769
1.36G
                    if (dst_pos < (TDEFL_MAX_MATCH_LEN - 1))
1770
10.1M
                        d->m_dict[TDEFL_LZ_DICT_SIZE + dst_pos] = c;
1771
1.36G
                    hash = ((hash << TDEFL_LZ_HASH_SHIFT) ^ c) & (TDEFL_LZ_HASH_SIZE - 1);
1772
1.36G
                    d->m_next[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] = d->m_hash[hash];
1773
1.36G
                    d->m_hash[hash] = (mz_uint16)(ins_pos);
1774
1.36G
                    dst_pos = (dst_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK;
1775
1.36G
                    ins_pos++;
1776
1.36G
                }
1777
1.01G
            }
1778
20.6k
            else
1779
20.6k
            {
1780
2.46M
                while ((src_buf_left) && (d->m_lookahead_size < TDEFL_MAX_MATCH_LEN))
1781
2.44M
                {
1782
2.44M
                    mz_uint8 c = *pSrc++;
1783
2.44M
                    mz_uint dst_pos = (d->m_lookahead_pos + d->m_lookahead_size) & TDEFL_LZ_DICT_SIZE_MASK;
1784
2.44M
                    src_buf_left--;
1785
2.44M
                    d->m_dict[dst_pos] = c;
1786
2.44M
                    if (dst_pos < (TDEFL_MAX_MATCH_LEN - 1))
1787
2.43M
                        d->m_dict[TDEFL_LZ_DICT_SIZE + dst_pos] = c;
1788
2.44M
                    if ((++d->m_lookahead_size + d->m_dict_size) >= TDEFL_MIN_MATCH_LEN)
1789
2.40M
                    {
1790
2.40M
                        mz_uint ins_pos = d->m_lookahead_pos + (d->m_lookahead_size - 1) - 2;
1791
2.40M
                        mz_uint hash = ((d->m_dict[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] << (TDEFL_LZ_HASH_SHIFT * 2)) ^ (d->m_dict[(ins_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK] << TDEFL_LZ_HASH_SHIFT) ^ c) & (TDEFL_LZ_HASH_SIZE - 1);
1792
2.40M
                        d->m_next[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] = d->m_hash[hash];
1793
2.40M
                        d->m_hash[hash] = (mz_uint16)(ins_pos);
1794
2.40M
                    }
1795
2.44M
                }
1796
20.6k
            }
1797
1.01G
            d->m_dict_size = MZ_MIN(TDEFL_LZ_DICT_SIZE - d->m_lookahead_size, d->m_dict_size);
1798
1.01G
            if ((!flush) && (d->m_lookahead_size < TDEFL_MAX_MATCH_LEN))
1799
45.2M
                break;
1800
1801
            /* Simple lazy/greedy parsing state machine. */
1802
964M
            len_to_move = 1;
1803
964M
            cur_match_dist = 0;
1804
964M
            cur_match_len = d->m_saved_match_len ? d->m_saved_match_len : (TDEFL_MIN_MATCH_LEN - 1);
1805
964M
            cur_pos = d->m_lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK;
1806
964M
            if (d->m_flags & (TDEFL_RLE_MATCHES | TDEFL_FORCE_ALL_RAW_BLOCKS))
1807
0
            {
1808
0
                if ((d->m_dict_size) && (!(d->m_flags & TDEFL_FORCE_ALL_RAW_BLOCKS)))
1809
0
                {
1810
0
                    mz_uint8 c = d->m_dict[(cur_pos - 1) & TDEFL_LZ_DICT_SIZE_MASK];
1811
0
                    cur_match_len = 0;
1812
0
                    while (cur_match_len < d->m_lookahead_size)
1813
0
                    {
1814
0
                        if (d->m_dict[cur_pos + cur_match_len] != c)
1815
0
                            break;
1816
0
                        cur_match_len++;
1817
0
                    }
1818
0
                    if (cur_match_len < TDEFL_MIN_MATCH_LEN)
1819
0
                        cur_match_len = 0;
1820
0
                    else
1821
0
                        cur_match_dist = 1;
1822
0
                }
1823
0
            }
1824
964M
            else
1825
964M
            {
1826
964M
                tdefl_find_match(d, d->m_lookahead_pos, d->m_dict_size, d->m_lookahead_size, &cur_match_dist, &cur_match_len);
1827
964M
            }
1828
964M
            if (((cur_match_len == TDEFL_MIN_MATCH_LEN) && (cur_match_dist >= 8U * 1024U)) || (cur_pos == cur_match_dist) || ((d->m_flags & TDEFL_FILTER_MATCHES) && (cur_match_len <= 5)))
1829
2.35M
            {
1830
2.35M
                cur_match_dist = cur_match_len = 0;
1831
2.35M
            }
1832
964M
            if (d->m_saved_match_len)
1833
4.59M
            {
1834
4.59M
                if (cur_match_len > d->m_saved_match_len)
1835
578k
                {
1836
578k
                    tdefl_record_literal(d, (mz_uint8)d->m_saved_lit);
1837
578k
                    if (cur_match_len >= 128)
1838
15.8k
                    {
1839
15.8k
                        tdefl_record_match(d, cur_match_len, cur_match_dist);
1840
15.8k
                        d->m_saved_match_len = 0;
1841
15.8k
                        len_to_move = cur_match_len;
1842
15.8k
                    }
1843
563k
                    else
1844
563k
                    {
1845
563k
                        d->m_saved_lit = d->m_dict[cur_pos];
1846
563k
                        d->m_saved_match_dist = cur_match_dist;
1847
563k
                        d->m_saved_match_len = cur_match_len;
1848
563k
                    }
1849
578k
                }
1850
4.01M
                else
1851
4.01M
                {
1852
4.01M
                    tdefl_record_match(d, d->m_saved_match_len, d->m_saved_match_dist);
1853
4.01M
                    len_to_move = d->m_saved_match_len - 1;
1854
4.01M
                    d->m_saved_match_len = 0;
1855
4.01M
                }
1856
4.59M
            }
1857
960M
            else if (!cur_match_dist)
1858
945M
                tdefl_record_literal(d, d->m_dict[MZ_MIN(cur_pos, sizeof(d->m_dict) - 1)]);
1859
14.4M
            else if ((d->m_greedy_parsing) || (d->m_flags & TDEFL_RLE_MATCHES) || (cur_match_len >= 128))
1860
10.3M
            {
1861
10.3M
                tdefl_record_match(d, cur_match_len, cur_match_dist);
1862
10.3M
                len_to_move = cur_match_len;
1863
10.3M
            }
1864
4.02M
            else
1865
4.02M
            {
1866
4.02M
                d->m_saved_lit = d->m_dict[MZ_MIN(cur_pos, sizeof(d->m_dict) - 1)];
1867
4.02M
                d->m_saved_match_dist = cur_match_dist;
1868
4.02M
                d->m_saved_match_len = cur_match_len;
1869
4.02M
            }
1870
            /* Move the lookahead forward by len_to_move bytes. */
1871
964M
            d->m_lookahead_pos += len_to_move;
1872
964M
            MZ_ASSERT(d->m_lookahead_size >= len_to_move);
1873
964M
            d->m_lookahead_size -= len_to_move;
1874
964M
            d->m_dict_size = MZ_MIN(d->m_dict_size + len_to_move, (mz_uint)TDEFL_LZ_DICT_SIZE);
1875
            /* Check if it's time to flush the current LZ codes to the internal output buffer. */
1876
964M
            if ((d->m_pLZ_code_buf > &d->m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE - 8]) ||
1877
964M
                ((d->m_total_lz_bytes > 31 * 1024) && (((((mz_uint)(d->m_pLZ_code_buf - d->m_lz_code_buf) * 115) >> 7) >= d->m_total_lz_bytes) || (d->m_flags & TDEFL_FORCE_ALL_RAW_BLOCKS))))
1878
26.0k
            {
1879
26.0k
                int n;
1880
26.0k
                d->m_pSrc = pSrc;
1881
26.0k
                d->m_src_buf_left = src_buf_left;
1882
26.0k
                if ((n = tdefl_flush_block(d, 0)) != 0)
1883
4.22k
                    return (n < 0) ? MZ_FALSE : MZ_TRUE;
1884
26.0k
            }
1885
964M
        }
1886
1887
194M
        d->m_pSrc = pSrc;
1888
194M
        d->m_src_buf_left = src_buf_left;
1889
194M
        return MZ_TRUE;
1890
194M
    }
1891
1892
    static tdefl_status tdefl_flush_output_buffer(tdefl_compressor *d)
1893
332M
    {
1894
332M
        if (d->m_pIn_buf_size)
1895
332M
        {
1896
332M
            *d->m_pIn_buf_size = d->m_pSrc - (const mz_uint8 *)d->m_pIn_buf;
1897
332M
        }
1898
1899
332M
        if (d->m_pOut_buf_size)
1900
332M
        {
1901
332M
            size_t n = MZ_MIN(*d->m_pOut_buf_size - d->m_out_buf_ofs, d->m_output_flush_remaining);
1902
332M
            memcpy((mz_uint8 *)d->m_pOut_buf + d->m_out_buf_ofs, d->m_output_buf + d->m_output_flush_ofs, n);
1903
332M
            d->m_output_flush_ofs += (mz_uint)n;
1904
332M
            d->m_output_flush_remaining -= (mz_uint)n;
1905
332M
            d->m_out_buf_ofs += n;
1906
1907
332M
            *d->m_pOut_buf_size = d->m_out_buf_ofs;
1908
332M
        }
1909
1910
332M
        return (d->m_finished && !d->m_output_flush_remaining) ? TDEFL_STATUS_DONE : TDEFL_STATUS_OKAY;
1911
332M
    }
1912
1913
    tdefl_status tdefl_compress(tdefl_compressor *d, const void *pIn_buf, size_t *pIn_buf_size, void *pOut_buf, size_t *pOut_buf_size, tdefl_flush flush)
1914
332M
    {
1915
332M
        if (!d)
1916
0
        {
1917
0
            if (pIn_buf_size)
1918
0
                *pIn_buf_size = 0;
1919
0
            if (pOut_buf_size)
1920
0
                *pOut_buf_size = 0;
1921
0
            return TDEFL_STATUS_BAD_PARAM;
1922
0
        }
1923
1924
332M
        d->m_pIn_buf = pIn_buf;
1925
332M
        d->m_pIn_buf_size = pIn_buf_size;
1926
332M
        d->m_pOut_buf = pOut_buf;
1927
332M
        d->m_pOut_buf_size = pOut_buf_size;
1928
332M
        d->m_pSrc = (const mz_uint8 *)(pIn_buf);
1929
332M
        d->m_src_buf_left = pIn_buf_size ? *pIn_buf_size : 0;
1930
332M
        d->m_out_buf_ofs = 0;
1931
332M
        d->m_flush = flush;
1932
1933
332M
        if (((d->m_pPut_buf_func != NULL) == ((pOut_buf != NULL) || (pOut_buf_size != NULL))) || (d->m_prev_return_status != TDEFL_STATUS_OKAY) ||
1934
332M
            (d->m_wants_to_finish && (flush != TDEFL_FINISH)) || (pIn_buf_size && *pIn_buf_size && !pIn_buf) || (pOut_buf_size && *pOut_buf_size && !pOut_buf))
1935
0
        {
1936
0
            if (pIn_buf_size)
1937
0
                *pIn_buf_size = 0;
1938
0
            if (pOut_buf_size)
1939
0
                *pOut_buf_size = 0;
1940
0
            return (d->m_prev_return_status = TDEFL_STATUS_BAD_PARAM);
1941
0
        }
1942
332M
        d->m_wants_to_finish |= (flush == TDEFL_FINISH);
1943
1944
332M
        if ((d->m_output_flush_remaining) || (d->m_finished))
1945
138M
            return (d->m_prev_return_status = tdefl_flush_output_buffer(d));
1946
1947
#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN
1948
        if (((d->m_flags & TDEFL_MAX_PROBES_MASK) == 1) &&
1949
            ((d->m_flags & TDEFL_GREEDY_PARSING_FLAG) != 0) &&
1950
            ((d->m_flags & (TDEFL_FILTER_MATCHES | TDEFL_FORCE_ALL_RAW_BLOCKS | TDEFL_RLE_MATCHES)) == 0))
1951
        {
1952
            if (!tdefl_compress_fast(d))
1953
                return d->m_prev_return_status;
1954
        }
1955
        else
1956
#endif /* #if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN */
1957
194M
        {
1958
194M
            if (!tdefl_compress_normal(d))
1959
0
                return d->m_prev_return_status;
1960
194M
        }
1961
1962
194M
        if ((d->m_flags & (TDEFL_WRITE_ZLIB_HEADER | TDEFL_COMPUTE_ADLER32)) && (pIn_buf))
1963
194M
            d->m_adler32 = (mz_uint32)mz_adler32(d->m_adler32, (const mz_uint8 *)pIn_buf, d->m_pSrc - (const mz_uint8 *)pIn_buf);
1964
1965
194M
        if ((flush) && (!d->m_lookahead_size) && (!d->m_src_buf_left) && (!d->m_output_flush_remaining))
1966
18.8k
        {
1967
18.8k
            if (tdefl_flush_block(d, flush) < 0)
1968
0
                return d->m_prev_return_status;
1969
18.8k
            d->m_finished = (flush == TDEFL_FINISH);
1970
18.8k
            if (flush == TDEFL_FULL_FLUSH)
1971
1.65k
            {
1972
1.65k
                MZ_CLEAR_ARR(d->m_hash);
1973
1.65k
                MZ_CLEAR_ARR(d->m_next);
1974
1.65k
                d->m_dict_size = 0;
1975
1.65k
            }
1976
18.8k
        }
1977
1978
194M
        return (d->m_prev_return_status = tdefl_flush_output_buffer(d));
1979
194M
    }
1980
1981
    tdefl_status tdefl_compress_buffer(tdefl_compressor *d, const void *pIn_buf, size_t in_buf_size, tdefl_flush flush)
1982
3.00k
    {
1983
3.00k
        MZ_ASSERT(d->m_pPut_buf_func);
1984
3.00k
        return tdefl_compress(d, pIn_buf, &in_buf_size, NULL, NULL, flush);
1985
3.00k
    }
1986
1987
    tdefl_status tdefl_init(tdefl_compressor *d, tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags)
1988
17.2k
    {
1989
17.2k
        d->m_pPut_buf_func = pPut_buf_func;
1990
17.2k
        d->m_pPut_buf_user = pPut_buf_user;
1991
17.2k
        d->m_flags = (mz_uint)(flags);
1992
17.2k
        d->m_max_probes[0] = 1 + ((flags & 0xFFF) + 2) / 3;
1993
17.2k
        d->m_greedy_parsing = (flags & TDEFL_GREEDY_PARSING_FLAG) != 0;
1994
17.2k
        d->m_max_probes[1] = 1 + (((flags & 0xFFF) >> 2) + 2) / 3;
1995
17.2k
        if (!(flags & TDEFL_NONDETERMINISTIC_PARSING_FLAG))
1996
17.2k
            MZ_CLEAR_ARR(d->m_hash);
1997
17.2k
        d->m_lookahead_pos = d->m_lookahead_size = d->m_dict_size = d->m_total_lz_bytes = d->m_lz_code_buf_dict_pos = d->m_bits_in = 0;
1998
17.2k
        d->m_output_flush_ofs = d->m_output_flush_remaining = d->m_finished = d->m_block_index = d->m_bit_buffer = d->m_wants_to_finish = 0;
1999
17.2k
        d->m_pLZ_code_buf = d->m_lz_code_buf + 1;
2000
17.2k
        d->m_pLZ_flags = d->m_lz_code_buf;
2001
17.2k
        *d->m_pLZ_flags = 0;
2002
17.2k
        d->m_num_flags_left = 8;
2003
17.2k
        d->m_pOutput_buf = d->m_output_buf;
2004
17.2k
        d->m_pOutput_buf_end = d->m_output_buf;
2005
17.2k
        d->m_prev_return_status = TDEFL_STATUS_OKAY;
2006
17.2k
        d->m_saved_match_dist = d->m_saved_match_len = d->m_saved_lit = 0;
2007
17.2k
        d->m_adler32 = 1;
2008
17.2k
        d->m_pIn_buf = NULL;
2009
17.2k
        d->m_pOut_buf = NULL;
2010
17.2k
        d->m_pIn_buf_size = NULL;
2011
17.2k
        d->m_pOut_buf_size = NULL;
2012
17.2k
        d->m_flush = TDEFL_NO_FLUSH;
2013
17.2k
        d->m_pSrc = NULL;
2014
17.2k
        d->m_src_buf_left = 0;
2015
17.2k
        d->m_out_buf_ofs = 0;
2016
17.2k
        if (!(flags & TDEFL_NONDETERMINISTIC_PARSING_FLAG))
2017
17.2k
            MZ_CLEAR_ARR(d->m_dict);
2018
17.2k
        memset(&d->m_huff_count[0][0], 0, sizeof(d->m_huff_count[0][0]) * TDEFL_MAX_HUFF_SYMBOLS_0);
2019
17.2k
        memset(&d->m_huff_count[1][0], 0, sizeof(d->m_huff_count[1][0]) * TDEFL_MAX_HUFF_SYMBOLS_1);
2020
17.2k
        return TDEFL_STATUS_OKAY;
2021
17.2k
    }
2022
2023
    tdefl_status tdefl_get_prev_return_status(tdefl_compressor *d)
2024
0
    {
2025
0
        return d->m_prev_return_status;
2026
0
    }
2027
2028
    mz_uint32 tdefl_get_adler32(tdefl_compressor *d)
2029
332M
    {
2030
332M
        return d->m_adler32;
2031
332M
    }
2032
2033
    mz_bool tdefl_compress_mem_to_output(const void *pBuf, size_t buf_len, tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags)
2034
0
    {
2035
0
        tdefl_compressor *pComp;
2036
0
        mz_bool succeeded;
2037
0
        if (((buf_len) && (!pBuf)) || (!pPut_buf_func))
2038
0
            return MZ_FALSE;
2039
0
        pComp = (tdefl_compressor *)MZ_MALLOC(sizeof(tdefl_compressor));
2040
0
        if (!pComp)
2041
0
            return MZ_FALSE;
2042
0
        succeeded = (tdefl_init(pComp, pPut_buf_func, pPut_buf_user, flags) == TDEFL_STATUS_OKAY);
2043
0
        succeeded = succeeded && (tdefl_compress_buffer(pComp, pBuf, buf_len, TDEFL_FINISH) == TDEFL_STATUS_DONE);
2044
0
        MZ_FREE(pComp);
2045
0
        return succeeded;
2046
0
    }
2047
2048
    typedef struct
2049
    {
2050
        size_t m_size, m_capacity;
2051
        mz_uint8 *m_pBuf;
2052
        mz_bool m_expandable;
2053
    } tdefl_output_buffer;
2054
2055
    static mz_bool tdefl_output_buffer_putter(const void *pBuf, int len, void *pUser)
2056
0
    {
2057
0
        tdefl_output_buffer *p = (tdefl_output_buffer *)pUser;
2058
0
        size_t new_size = p->m_size + len;
2059
0
        if (new_size > p->m_capacity)
2060
0
        {
2061
0
            size_t new_capacity = p->m_capacity;
2062
0
            mz_uint8 *pNew_buf;
2063
0
            if (!p->m_expandable)
2064
0
                return MZ_FALSE;
2065
0
            do
2066
0
            {
2067
0
                new_capacity = MZ_MAX(128U, new_capacity << 1U);
2068
0
            } while (new_size > new_capacity);
2069
0
            pNew_buf = (mz_uint8 *)MZ_REALLOC(p->m_pBuf, new_capacity);
2070
0
            if (!pNew_buf)
2071
0
                return MZ_FALSE;
2072
0
            p->m_pBuf = pNew_buf;
2073
0
            p->m_capacity = new_capacity;
2074
0
        }
2075
0
        memcpy((mz_uint8 *)p->m_pBuf + p->m_size, pBuf, len);
2076
0
        p->m_size = new_size;
2077
0
        return MZ_TRUE;
2078
0
    }
2079
2080
    void *tdefl_compress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags)
2081
0
    {
2082
0
        tdefl_output_buffer out_buf;
2083
0
        MZ_CLEAR_OBJ(out_buf);
2084
0
        if (!pOut_len)
2085
0
            return MZ_FALSE;
2086
0
        else
2087
0
            *pOut_len = 0;
2088
0
        out_buf.m_expandable = MZ_TRUE;
2089
0
        if (!tdefl_compress_mem_to_output(pSrc_buf, src_buf_len, tdefl_output_buffer_putter, &out_buf, flags))
2090
0
            return NULL;
2091
0
        *pOut_len = out_buf.m_size;
2092
0
        return out_buf.m_pBuf;
2093
0
    }
2094
2095
    size_t tdefl_compress_mem_to_mem(void *pOut_buf, size_t out_buf_len, const void *pSrc_buf, size_t src_buf_len, int flags)
2096
0
    {
2097
0
        tdefl_output_buffer out_buf;
2098
0
        MZ_CLEAR_OBJ(out_buf);
2099
0
        if (!pOut_buf)
2100
0
            return 0;
2101
0
        out_buf.m_pBuf = (mz_uint8 *)pOut_buf;
2102
0
        out_buf.m_capacity = out_buf_len;
2103
0
        if (!tdefl_compress_mem_to_output(pSrc_buf, src_buf_len, tdefl_output_buffer_putter, &out_buf, flags))
2104
0
            return 0;
2105
0
        return out_buf.m_size;
2106
0
    }
2107
2108
    /* level may actually range from [0,10] (10 is a "hidden" max level, where we want a bit more compression and it's fine if throughput to fall off a cliff on some files). */
2109
    mz_uint tdefl_create_comp_flags_from_zip_params(int level, int window_bits, int strategy)
2110
17.2k
    {
2111
17.2k
        mz_uint comp_flags = s_tdefl_num_probes[(level >= 0) ? MZ_MIN(10, level) : MZ_DEFAULT_LEVEL] | ((level <= 3) ? TDEFL_GREEDY_PARSING_FLAG : 0);
2112
17.2k
        if (window_bits > 0)
2113
14.2k
            comp_flags |= TDEFL_WRITE_ZLIB_HEADER;
2114
2115
17.2k
        if (!level)
2116
0
            comp_flags |= TDEFL_FORCE_ALL_RAW_BLOCKS;
2117
17.2k
        else if (strategy == MZ_FILTERED)
2118
0
            comp_flags |= TDEFL_FILTER_MATCHES;
2119
17.2k
        else if (strategy == MZ_HUFFMAN_ONLY)
2120
0
            comp_flags &= ~TDEFL_MAX_PROBES_MASK;
2121
17.2k
        else if (strategy == MZ_FIXED)
2122
0
            comp_flags |= TDEFL_FORCE_ALL_STATIC_BLOCKS;
2123
17.2k
        else if (strategy == MZ_RLE)
2124
0
            comp_flags |= TDEFL_RLE_MATCHES;
2125
2126
17.2k
        return comp_flags;
2127
17.2k
    }
2128
2129
#ifdef _MSC_VER
2130
#pragma warning(push)
2131
#pragma warning(disable : 4204) /* nonstandard extension used : non-constant aggregate initializer (also supported by GNU C and C99, so no big deal) */
2132
#endif
2133
2134
    /* Simple PNG writer function by Alex Evans, 2011. Released into the public domain: https://gist.github.com/908299, more context at
2135
     http://altdevblogaday.org/2011/04/06/a-smaller-jpg-encoder/.
2136
     This is actually a modification of Alex's original code so PNG files generated by this function pass pngcheck. */
2137
    void *tdefl_write_image_to_png_file_in_memory_ex(const void *pImage, int w, int h, int num_chans, size_t *pLen_out, mz_uint level, mz_bool flip)
2138
0
    {
2139
        /* Using a local copy of this array here in case MINIZ_NO_ZLIB_APIS was defined. */
2140
0
        static const mz_uint s_tdefl_png_num_probes[11] = { 0, 1, 6, 32, 16, 32, 128, 256, 512, 768, 1500 };
2141
0
        tdefl_compressor *pComp = (tdefl_compressor *)MZ_MALLOC(sizeof(tdefl_compressor));
2142
0
        tdefl_output_buffer out_buf;
2143
0
        int i, bpl = w * num_chans, y, z;
2144
0
        mz_uint32 c;
2145
0
        *pLen_out = 0;
2146
0
        if (!pComp)
2147
0
            return NULL;
2148
0
        MZ_CLEAR_OBJ(out_buf);
2149
0
        out_buf.m_expandable = MZ_TRUE;
2150
0
        out_buf.m_capacity = 57 + MZ_MAX(64, (1 + bpl) * h);
2151
0
        if (NULL == (out_buf.m_pBuf = (mz_uint8 *)MZ_MALLOC(out_buf.m_capacity)))
2152
0
        {
2153
0
            MZ_FREE(pComp);
2154
0
            return NULL;
2155
0
        }
2156
        /* write dummy header */
2157
0
        for (z = 41; z; --z)
2158
0
            tdefl_output_buffer_putter(&z, 1, &out_buf);
2159
        /* compress image data */
2160
0
        tdefl_init(pComp, tdefl_output_buffer_putter, &out_buf, s_tdefl_png_num_probes[MZ_MIN(10, level)] | TDEFL_WRITE_ZLIB_HEADER);
2161
0
        for (y = 0; y < h; ++y)
2162
0
        {
2163
0
            tdefl_compress_buffer(pComp, &z, 1, TDEFL_NO_FLUSH);
2164
0
            tdefl_compress_buffer(pComp, (mz_uint8 *)pImage + (flip ? (h - 1 - y) : y) * bpl, bpl, TDEFL_NO_FLUSH);
2165
0
        }
2166
0
        if (tdefl_compress_buffer(pComp, NULL, 0, TDEFL_FINISH) != TDEFL_STATUS_DONE)
2167
0
        {
2168
0
            MZ_FREE(pComp);
2169
0
            MZ_FREE(out_buf.m_pBuf);
2170
0
            return NULL;
2171
0
        }
2172
        /* write real header */
2173
0
        *pLen_out = out_buf.m_size - 41;
2174
0
        {
2175
0
            static const mz_uint8 chans[] = { 0x00, 0x00, 0x04, 0x02, 0x06 };
2176
0
            mz_uint8 pnghdr[41] = { 0x89, 0x50, 0x4e, 0x47, 0x0d,
2177
0
                                    0x0a, 0x1a, 0x0a, 0x00, 0x00,
2178
0
                                    0x00, 0x0d, 0x49, 0x48, 0x44,
2179
0
                                    0x52, 0x00, 0x00, 0x00, 0x00,
2180
0
                                    0x00, 0x00, 0x00, 0x00, 0x08,
2181
0
                                    0x00, 0x00, 0x00, 0x00, 0x00,
2182
0
                                    0x00, 0x00, 0x00, 0x00, 0x00,
2183
0
                                    0x00, 0x00, 0x49, 0x44, 0x41,
2184
0
                                    0x54 };
2185
0
            pnghdr[18] = (mz_uint8)(w >> 8);
2186
0
            pnghdr[19] = (mz_uint8)w;
2187
0
            pnghdr[22] = (mz_uint8)(h >> 8);
2188
0
            pnghdr[23] = (mz_uint8)h;
2189
0
            pnghdr[25] = chans[num_chans];
2190
0
            pnghdr[33] = (mz_uint8)(*pLen_out >> 24);
2191
0
            pnghdr[34] = (mz_uint8)(*pLen_out >> 16);
2192
0
            pnghdr[35] = (mz_uint8)(*pLen_out >> 8);
2193
0
            pnghdr[36] = (mz_uint8)*pLen_out;
2194
0
            c = (mz_uint32)mz_crc32(MZ_CRC32_INIT, pnghdr + 12, 17);
2195
0
            for (i = 0; i < 4; ++i, c <<= 8)
2196
0
                ((mz_uint8 *)(pnghdr + 29))[i] = (mz_uint8)(c >> 24);
2197
0
            memcpy(out_buf.m_pBuf, pnghdr, 41);
2198
0
        }
2199
        /* write footer (IDAT CRC-32, followed by IEND chunk) */
2200
0
        if (!tdefl_output_buffer_putter("\0\0\0\0\0\0\0\0\x49\x45\x4e\x44\xae\x42\x60\x82", 16, &out_buf))
2201
0
        {
2202
0
            *pLen_out = 0;
2203
0
            MZ_FREE(pComp);
2204
0
            MZ_FREE(out_buf.m_pBuf);
2205
0
            return NULL;
2206
0
        }
2207
0
        c = (mz_uint32)mz_crc32(MZ_CRC32_INIT, out_buf.m_pBuf + 41 - 4, *pLen_out + 4);
2208
0
        for (i = 0; i < 4; ++i, c <<= 8)
2209
0
            (out_buf.m_pBuf + out_buf.m_size - 16)[i] = (mz_uint8)(c >> 24);
2210
        /* compute final size of file, grab compressed data buffer and return */
2211
0
        *pLen_out += 57;
2212
0
        MZ_FREE(pComp);
2213
0
        return out_buf.m_pBuf;
2214
0
    }
2215
    void *tdefl_write_image_to_png_file_in_memory(const void *pImage, int w, int h, int num_chans, size_t *pLen_out)
2216
0
    {
2217
        /* Level 6 corresponds to TDEFL_DEFAULT_MAX_PROBES or MZ_DEFAULT_LEVEL (but we can't depend on MZ_DEFAULT_LEVEL being available in case the zlib API's where #defined out) */
2218
0
        return tdefl_write_image_to_png_file_in_memory_ex(pImage, w, h, num_chans, pLen_out, 6, MZ_FALSE);
2219
0
    }
2220
2221
#ifndef MINIZ_NO_MALLOC
2222
    /* Allocate the tdefl_compressor and tinfl_decompressor structures in C so that */
2223
    /* non-C language bindings to tdefL_ and tinfl_ API don't need to worry about */
2224
    /* structure size and allocation mechanism. */
2225
    tdefl_compressor *tdefl_compressor_alloc(void)
2226
0
    {
2227
0
        return (tdefl_compressor *)MZ_MALLOC(sizeof(tdefl_compressor));
2228
0
    }
2229
2230
    void tdefl_compressor_free(tdefl_compressor *pComp)
2231
0
    {
2232
0
        MZ_FREE(pComp);
2233
0
    }
2234
#endif
2235
2236
#ifdef _MSC_VER
2237
#pragma warning(pop)
2238
#endif
2239
2240
#ifdef __cplusplus
2241
}
2242
#endif
2243
2244
#endif /*#ifndef MINIZ_NO_DEFLATE_APIS*/
2245
 /**************************************************************************
2246
 *
2247
 * Copyright 2013-2014 RAD Game Tools and Valve Software
2248
 * Copyright 2010-2014 Rich Geldreich and Tenacious Software LLC
2249
 * All Rights Reserved.
2250
 *
2251
 * Permission is hereby granted, free of charge, to any person obtaining a copy
2252
 * of this software and associated documentation files (the "Software"), to deal
2253
 * in the Software without restriction, including without limitation the rights
2254
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
2255
 * copies of the Software, and to permit persons to whom the Software is
2256
 * furnished to do so, subject to the following conditions:
2257
 *
2258
 * The above copyright notice and this permission notice shall be included in
2259
 * all copies or substantial portions of the Software.
2260
 *
2261
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
2262
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
2263
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
2264
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
2265
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
2266
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
2267
 * THE SOFTWARE.
2268
 *
2269
 **************************************************************************/
2270
2271
2272
2273
#ifndef MINIZ_NO_INFLATE_APIS
2274
2275
#ifdef __cplusplus
2276
extern "C"
2277
{
2278
#endif
2279
2280
    /* ------------------- Low-level Decompression (completely independent from all compression API's) */
2281
2282
28.4M
#define TINFL_MEMCPY(d, s, l) memcpy(d, s, l)
2283
1.79M
#define TINFL_MEMSET(p, c, l) memset(p, c, l)
2284
2285
#define TINFL_CR_BEGIN  \
2286
276M
    switch (r->m_state) \
2287
276M
    {                   \
2288
31.9k
        case 0:
2289
#define TINFL_CR_RETURN(state_index, result) \
2290
138M
    do                                       \
2291
138M
    {                                        \
2292
276M
        status = result;                     \
2293
138M
        r->m_state = state_index;            \
2294
138M
        goto common_exit;                    \
2295
138M
        case state_index:;                   \
2296
138M
    }                                        \
2297
138M
    MZ_MACRO_END
2298
#define TINFL_CR_RETURN_FOREVER(state_index, result) \
2299
19.7k
    do                                               \
2300
19.7k
    {                                                \
2301
19.7k
        for (;;)                                     \
2302
19.7k
        {                                            \
2303
19.7k
            TINFL_CR_RETURN(state_index, result);    \
2304
19.7k
        }                                            \
2305
19.7k
    }                                                \
2306
20.4k
    MZ_MACRO_END
2307
138M
#define TINFL_CR_FINISH }
2308
2309
#define TINFL_GET_BYTE(state_index, c)                                                                                                                           \
2310
110M
    do                                                                                                                                                           \
2311
110M
    {                                                                                                                                                            \
2312
220M
        while (pIn_buf_cur >= pIn_buf_end)                                                                                                                       \
2313
110M
        {                                                                                                                                                        \
2314
109M
            TINFL_CR_RETURN(state_index, (decomp_flags & TINFL_FLAG_HAS_MORE_INPUT) ? TINFL_STATUS_NEEDS_MORE_INPUT : TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS); \
2315
109M
        }                                                                                                                                                        \
2316
110M
        c = *pIn_buf_cur++;                                                                                                                                      \
2317
110M
    }                                                                                                                                                            \
2318
221M
    MZ_MACRO_END
2319
2320
#define TINFL_NEED_BITS(state_index, n)                \
2321
1.89M
    do                                                 \
2322
2.19M
    {                                                  \
2323
2.19M
        mz_uint c;                                     \
2324
2.19M
        TINFL_GET_BYTE(state_index, c);                \
2325
2.19M
        bit_buf |= (((tinfl_bit_buf_t)c) << num_bits); \
2326
2.19M
        num_bits += 8;                                 \
2327
2.19M
    } while (num_bits < (mz_uint)(n))
2328
#define TINFL_SKIP_BITS(state_index, n)      \
2329
51.6k
    do                                       \
2330
51.6k
    {                                        \
2331
51.6k
        if (num_bits < (mz_uint)(n))         \
2332
51.6k
        {                                    \
2333
0
            TINFL_NEED_BITS(state_index, n); \
2334
0
        }                                    \
2335
51.6k
        bit_buf >>= (n);                     \
2336
51.6k
        num_bits -= (n);                     \
2337
51.6k
    }                                        \
2338
67.6k
    MZ_MACRO_END
2339
#define TINFL_GET_BITS(state_index, b, n)    \
2340
16.0M
    do                                       \
2341
16.0M
    {                                        \
2342
16.0M
        if (num_bits < (mz_uint)(n))         \
2343
16.0M
        {                                    \
2344
1.89M
            TINFL_NEED_BITS(state_index, n); \
2345
1.89M
        }                                    \
2346
16.0M
        b = bit_buf & ((1 << (n)) - 1);      \
2347
16.0M
        bit_buf >>= (n);                     \
2348
16.0M
        num_bits -= (n);                     \
2349
16.0M
    }                                        \
2350
16.0M
    MZ_MACRO_END
2351
2352
/* TINFL_HUFF_BITBUF_FILL() is only used rarely, when the number of bytes remaining in the input buffer falls below 2. */
2353
/* It reads just enough bytes from the input stream that are needed to decode the next Huffman code (and absolutely no more). It works by trying to fully decode a */
2354
/* Huffman code by using whatever bits are currently present in the bit buffer. If this fails, it reads another byte, and tries again until it succeeds or until the */
2355
/* bit buffer contains >=15 bits (deflate's max. Huffman code size). */
2356
#define TINFL_HUFF_BITBUF_FILL(state_index, pLookUp, pTree)          \
2357
123M
    do                                                               \
2358
219M
    {                                                                \
2359
219M
        temp = pLookUp[bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)];      \
2360
219M
        if (temp >= 0)                                               \
2361
219M
        {                                                            \
2362
219M
            code_len = temp >> 9;                                    \
2363
219M
            if ((code_len) && (num_bits >= code_len))                \
2364
219M
                break;                                               \
2365
219M
        }                                                            \
2366
219M
        else if (num_bits > TINFL_FAST_LOOKUP_BITS)                  \
2367
265k
        {                                                            \
2368
144k
            code_len = TINFL_FAST_LOOKUP_BITS;                       \
2369
144k
            do                                                       \
2370
228k
            {                                                        \
2371
228k
                temp = pTree[~temp + ((bit_buf >> code_len++) & 1)]; \
2372
228k
            } while ((temp < 0) && (num_bits >= (code_len + 1)));    \
2373
144k
            if (temp >= 0)                                           \
2374
144k
                break;                                               \
2375
144k
        }                                                            \
2376
219M
        TINFL_GET_BYTE(state_index, c);                              \
2377
107M
        bit_buf |= (((tinfl_bit_buf_t)c) << num_bits);               \
2378
107M
        num_bits += 8;                                               \
2379
107M
    } while (num_bits < 15);
2380
2381
/* TINFL_HUFF_DECODE() decodes the next Huffman coded symbol. It's more complex than you would initially expect because the zlib API expects the decompressor to never read */
2382
/* beyond the final byte of the deflate stream. (In other words, when this macro wants to read another byte from the input, it REALLY needs another byte in order to fully */
2383
/* decode the next Huffman code.) Handling this properly is particularly important on raw deflate (non-zlib) streams, which aren't followed by a byte aligned adler-32. */
2384
/* The slow path is only executed at the very end of the input buffer. */
2385
/* v1.16: The original macro handled the case at the very end of the passed-in input buffer, but we also need to handle the case where the user passes in 1+zillion bytes */
2386
/* following the deflate data and our non-conservative read-ahead path won't kick in here on this code. This is much trickier. */
2387
#define TINFL_HUFF_DECODE(state_index, sym, pLookUp, pTree)                                                                         \
2388
176M
    do                                                                                                                              \
2389
176M
    {                                                                                                                               \
2390
176M
        int temp;                                                                                                                   \
2391
176M
        mz_uint code_len, c;                                                                                                        \
2392
176M
        if (num_bits < 15)                                                                                                          \
2393
176M
        {                                                                                                                           \
2394
124M
            if ((pIn_buf_end - pIn_buf_cur) < 2)                                                                                    \
2395
124M
            {                                                                                                                       \
2396
123M
                TINFL_HUFF_BITBUF_FILL(state_index, pLookUp, pTree);                                                                \
2397
123M
            }                                                                                                                       \
2398
124M
            else                                                                                                                    \
2399
124M
            {                                                                                                                       \
2400
1.06M
                bit_buf |= (((tinfl_bit_buf_t)pIn_buf_cur[0]) << num_bits) | (((tinfl_bit_buf_t)pIn_buf_cur[1]) << (num_bits + 8)); \
2401
1.06M
                pIn_buf_cur += 2;                                                                                                   \
2402
1.06M
                num_bits += 16;                                                                                                     \
2403
1.06M
            }                                                                                                                       \
2404
124M
        }                                                                                                                           \
2405
176M
        if ((temp = pLookUp[bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)]) >= 0)                                                          \
2406
176M
            code_len = temp >> 9, temp &= 511;                                                                                      \
2407
176M
        else                                                                                                                        \
2408
176M
        {                                                                                                                           \
2409
440k
            code_len = TINFL_FAST_LOOKUP_BITS;                                                                                      \
2410
440k
            do                                                                                                                      \
2411
896k
            {                                                                                                                       \
2412
896k
                temp = pTree[~temp + ((bit_buf >> code_len++) & 1)];                                                                \
2413
896k
            } while (temp < 0);                                                                                                     \
2414
440k
        }                                                                                                                           \
2415
176M
        sym = temp;                                                                                                                 \
2416
176M
        bit_buf >>= code_len;                                                                                                       \
2417
176M
        num_bits -= code_len;                                                                                                       \
2418
176M
    }                                                                                                                               \
2419
176M
    MZ_MACRO_END
2420
2421
    static void tinfl_clear_tree(tinfl_decompressor *r)
2422
144k
    {
2423
144k
        if (r->m_type == 0)
2424
53.0k
            MZ_CLEAR_ARR(r->m_tree_0);
2425
90.9k
        else if (r->m_type == 1)
2426
53.0k
            MZ_CLEAR_ARR(r->m_tree_1);
2427
37.8k
        else
2428
37.8k
            MZ_CLEAR_ARR(r->m_tree_2);
2429
144k
    }
2430
2431
    tinfl_status tinfl_decompress(tinfl_decompressor *r, const mz_uint8 *pIn_buf_next, size_t *pIn_buf_size, mz_uint8 *pOut_buf_start, mz_uint8 *pOut_buf_next, size_t *pOut_buf_size, const mz_uint32 decomp_flags)
2432
138M
    {
2433
138M
        static const mz_uint16 s_length_base[31] = { 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0 };
2434
138M
        static const mz_uint8 s_length_extra[31] = { 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 0, 0 };
2435
138M
        static const mz_uint16 s_dist_base[32] = { 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577, 0, 0 };
2436
138M
        static const mz_uint8 s_dist_extra[32] = { 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13 };
2437
138M
        static const mz_uint8 s_length_dezigzag[19] = { 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 };
2438
138M
        static const mz_uint16 s_min_table_sizes[3] = { 257, 1, 4 };
2439
2440
138M
        mz_int16 *pTrees[3];
2441
138M
        mz_uint8 *pCode_sizes[3];
2442
2443
138M
        tinfl_status status = TINFL_STATUS_FAILED;
2444
138M
        mz_uint32 num_bits, dist, counter, num_extra;
2445
138M
        tinfl_bit_buf_t bit_buf;
2446
138M
        const mz_uint8 *pIn_buf_cur = pIn_buf_next, *const pIn_buf_end = pIn_buf_next + *pIn_buf_size;
2447
138M
        mz_uint8 *pOut_buf_cur = pOut_buf_next, *const pOut_buf_end = pOut_buf_next ? pOut_buf_next + *pOut_buf_size : NULL;
2448
138M
        size_t out_buf_size_mask = (decomp_flags & TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF) ? (size_t)-1 : ((pOut_buf_next - pOut_buf_start) + *pOut_buf_size) - 1, dist_from_out_buf_start;
2449
2450
        /* Ensure the output buffer's size is a power of 2, unless the output buffer is large enough to hold the entire output file (in which case it doesn't matter). */
2451
138M
        if (((out_buf_size_mask + 1) & out_buf_size_mask) || (pOut_buf_next < pOut_buf_start))
2452
0
        {
2453
0
            *pIn_buf_size = *pOut_buf_size = 0;
2454
0
            return TINFL_STATUS_BAD_PARAM;
2455
0
        }
2456
2457
138M
        pTrees[0] = r->m_tree_0;
2458
138M
        pTrees[1] = r->m_tree_1;
2459
138M
        pTrees[2] = r->m_tree_2;
2460
138M
        pCode_sizes[0] = r->m_code_size_0;
2461
138M
        pCode_sizes[1] = r->m_code_size_1;
2462
138M
        pCode_sizes[2] = r->m_code_size_2;
2463
2464
138M
        num_bits = r->m_num_bits;
2465
138M
        bit_buf = r->m_bit_buf;
2466
138M
        dist = r->m_dist;
2467
138M
        counter = r->m_counter;
2468
138M
        num_extra = r->m_num_extra;
2469
138M
        dist_from_out_buf_start = r->m_dist_from_out_buf_start;
2470
138M
        TINFL_CR_BEGIN
2471
2472
31.9k
        bit_buf = num_bits = dist = counter = num_extra = r->m_zhdr0 = r->m_zhdr1 = 0;
2473
31.9k
        r->m_z_adler32 = r->m_check_adler32 = 1;
2474
31.9k
        if (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER)
2475
17.4k
        {
2476
17.4k
            TINFL_GET_BYTE(1, r->m_zhdr0);
2477
17.4k
            TINFL_GET_BYTE(2, r->m_zhdr1);
2478
17.3k
            counter = (((r->m_zhdr0 * 256 + r->m_zhdr1) % 31 != 0) || (r->m_zhdr1 & 32) || ((r->m_zhdr0 & 15) != 8));
2479
17.3k
            if (!(decomp_flags & TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF))
2480
2.31k
                counter |= (((1U << (8U + (r->m_zhdr0 >> 4))) > 32768U) || ((out_buf_size_mask + 1) < (size_t)((size_t)1 << (8U + (r->m_zhdr0 >> 4)))));
2481
17.3k
            if (counter)
2482
40
            {
2483
40
                TINFL_CR_RETURN_FOREVER(36, TINFL_STATUS_FAILED);
2484
40
            }
2485
17.3k
        }
2486
2487
31.8k
        do
2488
92.7k
        {
2489
92.7k
            TINFL_GET_BITS(3, r->m_final, 3);
2490
92.3k
            r->m_type = r->m_final >> 1;
2491
92.3k
            if (r->m_type == 0)
2492
35.7k
            {
2493
35.7k
                TINFL_SKIP_BITS(5, num_bits & 7);
2494
176k
                for (counter = 0; counter < 4; ++counter)
2495
142k
                {
2496
142k
                    if (num_bits)
2497
15.6k
                        TINFL_GET_BITS(6, r->m_raw_header[counter], 8);
2498
126k
                    else
2499
126k
                        TINFL_GET_BYTE(7, r->m_raw_header[counter]);
2500
142k
                }
2501
34.3k
                if ((counter = (r->m_raw_header[0] | (r->m_raw_header[1] << 8))) != (mz_uint)(0xFFFF ^ (r->m_raw_header[2] | (r->m_raw_header[3] << 8))))
2502
1.38k
                {
2503
1.38k
                    TINFL_CR_RETURN_FOREVER(39, TINFL_STATUS_FAILED);
2504
1.38k
                }
2505
35.3k
                while ((counter) && (num_bits))
2506
2.55k
                {
2507
2.55k
                    TINFL_GET_BITS(51, dist, 8);
2508
2.55k
                    while (pOut_buf_cur >= pOut_buf_end)
2509
209
                    {
2510
209
                        TINFL_CR_RETURN(52, TINFL_STATUS_HAS_MORE_OUTPUT);
2511
209
                    }
2512
2.34k
                    *pOut_buf_cur++ = (mz_uint8)dist;
2513
2.34k
                    counter--;
2514
2.34k
                }
2515
28.4M
                while (counter)
2516
28.3M
                {
2517
28.3M
                    size_t n;
2518
28.3M
                    while (pOut_buf_cur >= pOut_buf_end)
2519
1.37k
                    {
2520
1.37k
                        TINFL_CR_RETURN(9, TINFL_STATUS_HAS_MORE_OUTPUT);
2521
1.37k
                    }
2522
56.7M
                    while (pIn_buf_cur >= pIn_buf_end)
2523
28.3M
                    {
2524
28.3M
                        TINFL_CR_RETURN(38, (decomp_flags & TINFL_FLAG_HAS_MORE_INPUT) ? TINFL_STATUS_NEEDS_MORE_INPUT : TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS);
2525
28.3M
                    }
2526
28.3M
                    n = MZ_MIN(MZ_MIN((size_t)(pOut_buf_end - pOut_buf_cur), (size_t)(pIn_buf_end - pIn_buf_cur)), counter);
2527
28.3M
                    TINFL_MEMCPY(pOut_buf_cur, pIn_buf_cur, n);
2528
28.3M
                    pIn_buf_cur += n;
2529
28.3M
                    pOut_buf_cur += n;
2530
28.3M
                    counter -= (mz_uint)n;
2531
28.3M
                }
2532
32.7k
            }
2533
56.5k
            else if (r->m_type == 3)
2534
652
            {
2535
652
                TINFL_CR_RETURN_FOREVER(10, TINFL_STATUS_FAILED);
2536
652
            }
2537
55.9k
            else
2538
55.9k
            {
2539
55.9k
                if (r->m_type == 1)
2540
17.3k
                {
2541
17.3k
                    mz_uint8 *p = r->m_code_size_0;
2542
17.3k
                    mz_uint i;
2543
17.3k
                    r->m_table_sizes[0] = 288;
2544
17.3k
                    r->m_table_sizes[1] = 32;
2545
17.3k
                    TINFL_MEMSET(r->m_code_size_1, 5, 32);
2546
2.50M
                    for (i = 0; i <= 143; ++i)
2547
2.49M
                        *p++ = 8;
2548
1.95M
                    for (; i <= 255; ++i)
2549
1.93M
                        *p++ = 9;
2550
432k
                    for (; i <= 279; ++i)
2551
415k
                        *p++ = 7;
2552
155k
                    for (; i <= 287; ++i)
2553
138k
                        *p++ = 8;
2554
17.3k
                }
2555
38.6k
                else
2556
38.6k
                {
2557
153k
                    for (counter = 0; counter < 3; counter++)
2558
115k
                    {
2559
115k
                        TINFL_GET_BITS(11, r->m_table_sizes[counter], "\05\05\04"[counter]);
2560
115k
                        r->m_table_sizes[counter] += s_min_table_sizes[counter];
2561
115k
                    }
2562
38.2k
                    MZ_CLEAR_ARR(r->m_code_size_2);
2563
633k
                    for (counter = 0; counter < r->m_table_sizes[2]; counter++)
2564
595k
                    {
2565
595k
                        mz_uint s;
2566
595k
                        TINFL_GET_BITS(14, s, 3);
2567
595k
                        r->m_code_size_2[s_length_dezigzag[counter]] = (mz_uint8)s;
2568
595k
                    }
2569
37.8k
                    r->m_table_sizes[2] = 19;
2570
37.8k
                }
2571
196k
                for (; (int)r->m_type >= 0; r->m_type--)
2572
144k
                {
2573
144k
                    int tree_next, tree_cur;
2574
144k
                    mz_int16 *pLookUp;
2575
144k
                    mz_int16 *pTree;
2576
144k
                    mz_uint8 *pCode_size;
2577
144k
                    mz_uint i, j, used_syms, total, sym_index, next_code[17], total_syms[16];
2578
144k
                    pLookUp = r->m_look_up[r->m_type];
2579
144k
                    pTree = pTrees[r->m_type];
2580
144k
                    pCode_size = pCode_sizes[r->m_type];
2581
144k
                    MZ_CLEAR_ARR(total_syms);
2582
144k
                    TINFL_MEMSET(pLookUp, 0, sizeof(r->m_look_up[0]));
2583
144k
                    tinfl_clear_tree(r);
2584
16.7M
                    for (i = 0; i < r->m_table_sizes[r->m_type]; ++i)
2585
16.6M
                        total_syms[pCode_size[i]]++;
2586
144k
                    used_syms = 0, total = 0;
2587
144k
                    next_code[0] = next_code[1] = 0;
2588
2.30M
                    for (i = 1; i <= 15; ++i)
2589
2.16M
                    {
2590
2.16M
                        used_syms += total_syms[i];
2591
2.16M
                        next_code[i + 1] = (total = ((total + total_syms[i]) << 1));
2592
2.16M
                    }
2593
144k
                    if ((65536 != total) && (used_syms > 1))
2594
722
                    {
2595
722
                        TINFL_CR_RETURN_FOREVER(35, TINFL_STATUS_FAILED);
2596
722
                    }
2597
16.6M
                    for (tree_next = -1, sym_index = 0; sym_index < r->m_table_sizes[r->m_type]; ++sym_index)
2598
16.5M
                    {
2599
16.5M
                        mz_uint rev_code = 0, l, cur_code, code_size = pCode_size[sym_index];
2600
16.5M
                        if (!code_size)
2601
5.23M
                            continue;
2602
11.3M
                        cur_code = next_code[code_size]++;
2603
102M
                        for (l = code_size; l > 0; l--, cur_code >>= 1)
2604
90.7M
                            rev_code = (rev_code << 1) | (cur_code & 1);
2605
11.3M
                        if (code_size <= TINFL_FAST_LOOKUP_BITS)
2606
10.8M
                        {
2607
10.8M
                            mz_int16 k = (mz_int16)((code_size << 9) | sym_index);
2608
137M
                            while (rev_code < TINFL_FAST_LOOKUP_SIZE)
2609
126M
                            {
2610
126M
                                pLookUp[rev_code] = k;
2611
126M
                                rev_code += (1 << code_size);
2612
126M
                            }
2613
10.8M
                            continue;
2614
10.8M
                        }
2615
466k
                        if (0 == (tree_cur = pLookUp[rev_code & (TINFL_FAST_LOOKUP_SIZE - 1)]))
2616
89.2k
                        {
2617
89.2k
                            pLookUp[rev_code & (TINFL_FAST_LOOKUP_SIZE - 1)] = (mz_int16)tree_next;
2618
89.2k
                            tree_cur = tree_next;
2619
89.2k
                            tree_next -= 2;
2620
89.2k
                        }
2621
466k
                        rev_code >>= (TINFL_FAST_LOOKUP_BITS - 1);
2622
1.42M
                        for (j = code_size; j > (TINFL_FAST_LOOKUP_BITS + 1); j--)
2623
954k
                        {
2624
954k
                            tree_cur -= ((rev_code >>= 1) & 1);
2625
954k
                            if (!pTree[-tree_cur - 1])
2626
305k
                            {
2627
305k
                                pTree[-tree_cur - 1] = (mz_int16)tree_next;
2628
305k
                                tree_cur = tree_next;
2629
305k
                                tree_next -= 2;
2630
305k
                            }
2631
648k
                            else
2632
648k
                                tree_cur = pTree[-tree_cur - 1];
2633
954k
                        }
2634
466k
                        tree_cur -= ((rev_code >>= 1) & 1);
2635
466k
                        pTree[-tree_cur - 1] = (mz_int16)sym_index;
2636
466k
                    }
2637
143k
                    if (r->m_type == 2)
2638
37.3k
                    {
2639
4.66M
                        for (counter = 0; counter < (r->m_table_sizes[0] + r->m_table_sizes[1]);)
2640
4.63M
                        {
2641
4.63M
                            mz_uint s;
2642
4.63M
                            TINFL_HUFF_DECODE(16, dist, r->m_look_up[2], r->m_tree_2);
2643
4.63M
                            if (dist < 16)
2644
3.73M
                            {
2645
3.73M
                                r->m_len_codes[counter++] = (mz_uint8)dist;
2646
3.73M
                                continue;
2647
3.73M
                            }
2648
895k
                            if ((dist == 16) && (!counter))
2649
261
                            {
2650
261
                                TINFL_CR_RETURN_FOREVER(17, TINFL_STATUS_FAILED);
2651
261
                            }
2652
895k
                            num_extra = "\02\03\07"[dist - 16];
2653
895k
                            TINFL_GET_BITS(18, s, num_extra);
2654
895k
                            s += "\03\03\013"[dist - 16];
2655
895k
                            TINFL_MEMSET(r->m_len_codes + counter, (dist == 16) ? r->m_len_codes[counter - 1] : 0, s);
2656
895k
                            counter += s;
2657
895k
                        }
2658
36.0k
                        if ((r->m_table_sizes[0] + r->m_table_sizes[1]) != counter)
2659
288
                        {
2660
288
                            TINFL_CR_RETURN_FOREVER(21, TINFL_STATUS_FAILED);
2661
288
                        }
2662
35.7k
                        TINFL_MEMCPY(r->m_code_size_0, r->m_len_codes, r->m_table_sizes[0]);
2663
35.7k
                        TINFL_MEMCPY(r->m_code_size_1, r->m_len_codes + r->m_table_sizes[0], r->m_table_sizes[1]);
2664
35.7k
                    }
2665
143k
                }
2666
52.8k
                for (;;)
2667
22.0M
                {
2668
22.0M
                    mz_uint8 *pSrc;
2669
22.0M
                    for (;;)
2670
443M
                    {
2671
443M
                        if (((pIn_buf_end - pIn_buf_cur) < 4) || ((pOut_buf_end - pOut_buf_cur) < 2))
2672
149M
                        {
2673
149M
                            TINFL_HUFF_DECODE(23, counter, r->m_look_up[0], r->m_tree_0);
2674
149M
                            if (counter >= 256)
2675
4.21M
                                break;
2676
145M
                            while (pOut_buf_cur >= pOut_buf_end)
2677
1.69k
                            {
2678
1.69k
                                TINFL_CR_RETURN(24, TINFL_STATUS_HAS_MORE_OUTPUT);
2679
1.69k
                            }
2680
145M
                            *pOut_buf_cur++ = (mz_uint8)counter;
2681
145M
                        }
2682
293M
                        else
2683
293M
                        {
2684
293M
                            int sym2;
2685
293M
                            mz_uint code_len;
2686
293M
#if TINFL_USE_64BIT_BITBUF
2687
293M
                            if (num_bits < 30)
2688
120M
                            {
2689
120M
                                bit_buf |= (((tinfl_bit_buf_t)MZ_READ_LE32(pIn_buf_cur)) << num_bits);
2690
120M
                                pIn_buf_cur += 4;
2691
120M
                                num_bits += 32;
2692
120M
                            }
2693
#else
2694
                        if (num_bits < 15)
2695
                        {
2696
                            bit_buf |= (((tinfl_bit_buf_t)MZ_READ_LE16(pIn_buf_cur)) << num_bits);
2697
                            pIn_buf_cur += 2;
2698
                            num_bits += 16;
2699
                        }
2700
#endif
2701
293M
                            if ((sym2 = r->m_look_up[0][bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)]) >= 0)
2702
292M
                                code_len = sym2 >> 9;
2703
752k
                            else
2704
752k
                            {
2705
752k
                                code_len = TINFL_FAST_LOOKUP_BITS;
2706
752k
                                do
2707
1.51M
                                {
2708
1.51M
                                    sym2 = r->m_tree_0[~sym2 + ((bit_buf >> code_len++) & 1)];
2709
1.51M
                                } while (sym2 < 0);
2710
752k
                            }
2711
293M
                            counter = sym2;
2712
293M
                            bit_buf >>= code_len;
2713
293M
                            num_bits -= code_len;
2714
293M
                            if (counter & 256)
2715
13.2M
                                break;
2716
2717
#if !TINFL_USE_64BIT_BITBUF
2718
                            if (num_bits < 15)
2719
                            {
2720
                                bit_buf |= (((tinfl_bit_buf_t)MZ_READ_LE16(pIn_buf_cur)) << num_bits);
2721
                                pIn_buf_cur += 2;
2722
                                num_bits += 16;
2723
                            }
2724
#endif
2725
280M
                            if ((sym2 = r->m_look_up[0][bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)]) >= 0)
2726
279M
                                code_len = sym2 >> 9;
2727
518k
                            else
2728
518k
                            {
2729
518k
                                code_len = TINFL_FAST_LOOKUP_BITS;
2730
518k
                                do
2731
1.03M
                                {
2732
1.03M
                                    sym2 = r->m_tree_0[~sym2 + ((bit_buf >> code_len++) & 1)];
2733
1.03M
                                } while (sym2 < 0);
2734
518k
                            }
2735
280M
                            bit_buf >>= code_len;
2736
280M
                            num_bits -= code_len;
2737
2738
280M
                            pOut_buf_cur[0] = (mz_uint8)counter;
2739
280M
                            if (sym2 & 256)
2740
4.55M
                            {
2741
4.55M
                                pOut_buf_cur++;
2742
4.55M
                                counter = sym2;
2743
4.55M
                                break;
2744
4.55M
                            }
2745
275M
                            pOut_buf_cur[1] = (mz_uint8)sym2;
2746
275M
                            pOut_buf_cur += 2;
2747
275M
                        }
2748
443M
                    }
2749
22.0M
                    if ((counter &= 511) == 256)
2750
45.0k
                        break;
2751
2752
22.0M
                    num_extra = s_length_extra[counter - 257];
2753
22.0M
                    counter = s_length_base[counter - 257];
2754
22.0M
                    if (num_extra)
2755
2.97M
                    {
2756
2.97M
                        mz_uint extra_bits;
2757
2.97M
                        TINFL_GET_BITS(25, extra_bits, num_extra);
2758
2.97M
                        counter += extra_bits;
2759
2.97M
                    }
2760
2761
22.0M
                    TINFL_HUFF_DECODE(26, dist, r->m_look_up[1], r->m_tree_1);
2762
22.0M
                    num_extra = s_dist_extra[dist];
2763
22.0M
                    dist = s_dist_base[dist];
2764
22.0M
                    if (num_extra)
2765
11.3M
                    {
2766
11.3M
                        mz_uint extra_bits;
2767
11.3M
                        TINFL_GET_BITS(27, extra_bits, num_extra);
2768
11.3M
                        dist += extra_bits;
2769
11.3M
                    }
2770
2771
22.0M
                    dist_from_out_buf_start = pOut_buf_cur - pOut_buf_start;
2772
22.0M
                    if ((dist == 0 || dist > dist_from_out_buf_start || dist_from_out_buf_start == 0) && (decomp_flags & TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF))
2773
1.27k
                    {
2774
1.27k
                        TINFL_CR_RETURN_FOREVER(37, TINFL_STATUS_FAILED);
2775
1.27k
                    }
2776
2777
22.0M
                    pSrc = pOut_buf_start + ((dist_from_out_buf_start - dist) & out_buf_size_mask);
2778
2779
22.0M
                    if ((MZ_MAX(pOut_buf_cur, pSrc) + counter) > pOut_buf_end)
2780
4.74k
                    {
2781
903k
                        while (counter--)
2782
898k
                        {
2783
902k
                            while (pOut_buf_cur >= pOut_buf_end)
2784
4.13k
                            {
2785
4.13k
                                TINFL_CR_RETURN(53, TINFL_STATUS_HAS_MORE_OUTPUT);
2786
4.13k
                            }
2787
898k
                            *pOut_buf_cur++ = pOut_buf_start[(dist_from_out_buf_start++ - dist) & out_buf_size_mask];
2788
898k
                        }
2789
4.31k
                        continue;
2790
4.74k
                    }
2791
#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES
2792
                    else if ((counter >= 9) && (counter <= dist))
2793
                    {
2794
                        const mz_uint8 *pSrc_end = pSrc + (counter & ~7);
2795
                        do
2796
                        {
2797
#ifdef MINIZ_UNALIGNED_USE_MEMCPY
2798
                            memcpy(pOut_buf_cur, pSrc, sizeof(mz_uint32) * 2);
2799
#else
2800
                            ((mz_uint32 *)pOut_buf_cur)[0] = ((const mz_uint32 *)pSrc)[0];
2801
                            ((mz_uint32 *)pOut_buf_cur)[1] = ((const mz_uint32 *)pSrc)[1];
2802
#endif
2803
                            pOut_buf_cur += 8;
2804
                        } while ((pSrc += 8) < pSrc_end);
2805
                        if ((counter &= 7) < 3)
2806
                        {
2807
                            if (counter)
2808
                            {
2809
                                pOut_buf_cur[0] = pSrc[0];
2810
                                if (counter > 1)
2811
                                    pOut_buf_cur[1] = pSrc[1];
2812
                                pOut_buf_cur += counter;
2813
                            }
2814
                            continue;
2815
                        }
2816
                    }
2817
#endif
2818
158M
                    while (counter > 2)
2819
136M
                    {
2820
136M
                        pOut_buf_cur[0] = pSrc[0];
2821
136M
                        pOut_buf_cur[1] = pSrc[1];
2822
136M
                        pOut_buf_cur[2] = pSrc[2];
2823
136M
                        pOut_buf_cur += 3;
2824
136M
                        pSrc += 3;
2825
136M
                        counter -= 3;
2826
136M
                    }
2827
22.0M
                    if (counter > 0)
2828
6.74M
                    {
2829
6.74M
                        pOut_buf_cur[0] = pSrc[0];
2830
6.74M
                        if (counter > 1)
2831
2.60M
                            pOut_buf_cur[1] = pSrc[1];
2832
6.74M
                        pOut_buf_cur += counter;
2833
6.74M
                    }
2834
22.0M
                }
2835
52.8k
            }
2836
92.3k
        } while (!(r->m_final & 1));
2837
2838
        /* Ensure byte alignment and put back any bytes from the bitbuf if we've looked ahead too far on gzip, or other Deflate streams followed by arbitrary data. */
2839
        /* I'm being super conservative here. A number of simplifications can be made to the byte alignment part, and the Adler32 check shouldn't ever need to worry about reading from the bitbuf now. */
2840
15.8k
        TINFL_SKIP_BITS(32, num_bits & 7);
2841
33.7k
        while ((pIn_buf_cur > pIn_buf_next) && (num_bits >= 8))
2842
17.9k
        {
2843
17.9k
            --pIn_buf_cur;
2844
17.9k
            num_bits -= 8;
2845
17.9k
        }
2846
15.8k
        bit_buf &= ~(~(tinfl_bit_buf_t)0 << num_bits);
2847
15.8k
        MZ_ASSERT(!num_bits); /* if this assert fires then we've read beyond the end of non-deflate/zlib streams with following data (such as gzip streams). */
2848
2849
15.8k
        if (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER)
2850
11.7k
        {
2851
56.1k
            for (counter = 0; counter < 4; ++counter)
2852
45.0k
            {
2853
45.0k
                mz_uint s;
2854
45.0k
                if (num_bits)
2855
0
                    TINFL_GET_BITS(41, s, 8);
2856
45.0k
                else
2857
45.0k
                    TINFL_GET_BYTE(42, s);
2858
44.3k
                r->m_z_adler32 = (r->m_z_adler32 << 8) | s;
2859
44.3k
            }
2860
11.7k
        }
2861
138M
        TINFL_CR_RETURN_FOREVER(34, TINFL_STATUS_DONE);
2862
2863
138M
        TINFL_CR_FINISH
2864
2865
138M
    common_exit:
2866
        /* As long as we aren't telling the caller that we NEED more input to make forward progress: */
2867
        /* Put back any bytes from the bitbuf in case we've looked ahead too far on gzip, or other Deflate streams followed by arbitrary data. */
2868
        /* We need to be very careful here to NOT push back any bytes we definitely know we need to make forward progress, though, or we'll lock the caller up into an inf loop. */
2869
138M
        if ((status != TINFL_STATUS_NEEDS_MORE_INPUT) && (status != TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS))
2870
27.1k
        {
2871
44.5k
            while ((pIn_buf_cur > pIn_buf_next) && (num_bits >= 8))
2872
17.3k
            {
2873
17.3k
                --pIn_buf_cur;
2874
17.3k
                num_bits -= 8;
2875
17.3k
            }
2876
27.1k
        }
2877
138M
        r->m_num_bits = num_bits;
2878
138M
        r->m_bit_buf = bit_buf & ~(~(tinfl_bit_buf_t)0 << num_bits);
2879
138M
        r->m_dist = dist;
2880
138M
        r->m_counter = counter;
2881
138M
        r->m_num_extra = num_extra;
2882
138M
        r->m_dist_from_out_buf_start = dist_from_out_buf_start;
2883
138M
        *pIn_buf_size = pIn_buf_cur - pIn_buf_next;
2884
138M
        *pOut_buf_size = pOut_buf_cur - pOut_buf_next;
2885
138M
        if ((decomp_flags & (TINFL_FLAG_PARSE_ZLIB_HEADER | TINFL_FLAG_COMPUTE_ADLER32)) && (status >= 0))
2886
138M
        {
2887
138M
            const mz_uint8 *ptr = pOut_buf_next;
2888
138M
            size_t buf_len = *pOut_buf_size;
2889
138M
            mz_uint32 i, s1 = r->m_check_adler32 & 0xffff, s2 = r->m_check_adler32 >> 16;
2890
138M
            size_t block_len = buf_len % 5552;
2891
272M
            while (buf_len)
2892
134M
            {
2893
257M
                for (i = 0; i + 7 < block_len; i += 8, ptr += 8)
2894
123M
                {
2895
123M
                    s1 += ptr[0], s2 += s1;
2896
123M
                    s1 += ptr[1], s2 += s1;
2897
123M
                    s1 += ptr[2], s2 += s1;
2898
123M
                    s1 += ptr[3], s2 += s1;
2899
123M
                    s1 += ptr[4], s2 += s1;
2900
123M
                    s1 += ptr[5], s2 += s1;
2901
123M
                    s1 += ptr[6], s2 += s1;
2902
123M
                    s1 += ptr[7], s2 += s1;
2903
123M
                }
2904
288M
                for (; i < block_len; ++i)
2905
154M
                    s1 += *ptr++, s2 += s1;
2906
134M
                s1 %= 65521U, s2 %= 65521U;
2907
134M
                buf_len -= block_len;
2908
134M
                block_len = 5552;
2909
134M
            }
2910
138M
            r->m_check_adler32 = (s2 << 16) + s1;
2911
138M
            if ((status == TINFL_STATUS_DONE) && (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER) && (r->m_check_adler32 != r->m_z_adler32))
2912
289
                status = TINFL_STATUS_ADLER32_MISMATCH;
2913
138M
        }
2914
138M
        return status;
2915
138M
    }
2916
2917
    /* Higher level helper functions. */
2918
    void *tinfl_decompress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags)
2919
0
    {
2920
0
        tinfl_decompressor decomp;
2921
0
        void *pBuf = NULL, *pNew_buf;
2922
0
        size_t src_buf_ofs = 0, out_buf_capacity = 0;
2923
0
        *pOut_len = 0;
2924
0
        tinfl_init(&decomp);
2925
0
        for (;;)
2926
0
        {
2927
0
            size_t src_buf_size = src_buf_len - src_buf_ofs, dst_buf_size = out_buf_capacity - *pOut_len, new_out_buf_capacity;
2928
0
            tinfl_status status = tinfl_decompress(&decomp, (const mz_uint8 *)pSrc_buf + src_buf_ofs, &src_buf_size, (mz_uint8 *)pBuf, pBuf ? (mz_uint8 *)pBuf + *pOut_len : NULL, &dst_buf_size,
2929
0
                                                   (flags & ~TINFL_FLAG_HAS_MORE_INPUT) | TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF);
2930
0
            if ((status < 0) || (status == TINFL_STATUS_NEEDS_MORE_INPUT))
2931
0
            {
2932
0
                MZ_FREE(pBuf);
2933
0
                *pOut_len = 0;
2934
0
                return NULL;
2935
0
            }
2936
0
            src_buf_ofs += src_buf_size;
2937
0
            *pOut_len += dst_buf_size;
2938
0
            if (status == TINFL_STATUS_DONE)
2939
0
                break;
2940
0
            new_out_buf_capacity = out_buf_capacity * 2;
2941
0
            if (new_out_buf_capacity < 128)
2942
0
                new_out_buf_capacity = 128;
2943
0
            pNew_buf = MZ_REALLOC(pBuf, new_out_buf_capacity);
2944
0
            if (!pNew_buf)
2945
0
            {
2946
0
                MZ_FREE(pBuf);
2947
0
                *pOut_len = 0;
2948
0
                return NULL;
2949
0
            }
2950
0
            pBuf = pNew_buf;
2951
0
            out_buf_capacity = new_out_buf_capacity;
2952
0
        }
2953
0
        return pBuf;
2954
0
    }
2955
2956
    size_t tinfl_decompress_mem_to_mem(void *pOut_buf, size_t out_buf_len, const void *pSrc_buf, size_t src_buf_len, int flags)
2957
0
    {
2958
0
        tinfl_decompressor decomp;
2959
0
        tinfl_status status;
2960
0
        tinfl_init(&decomp);
2961
0
        status = tinfl_decompress(&decomp, (const mz_uint8 *)pSrc_buf, &src_buf_len, (mz_uint8 *)pOut_buf, (mz_uint8 *)pOut_buf, &out_buf_len, (flags & ~TINFL_FLAG_HAS_MORE_INPUT) | TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF);
2962
0
        return (status != TINFL_STATUS_DONE) ? TINFL_DECOMPRESS_MEM_TO_MEM_FAILED : out_buf_len;
2963
0
    }
2964
2965
    int tinfl_decompress_mem_to_callback(const void *pIn_buf, size_t *pIn_buf_size, tinfl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags)
2966
0
    {
2967
0
        int result = 0;
2968
0
        tinfl_decompressor decomp;
2969
0
        mz_uint8 *pDict = (mz_uint8 *)MZ_MALLOC(TINFL_LZ_DICT_SIZE);
2970
0
        size_t in_buf_ofs = 0, dict_ofs = 0;
2971
0
        if (!pDict)
2972
0
            return TINFL_STATUS_FAILED;
2973
0
        memset(pDict, 0, TINFL_LZ_DICT_SIZE);
2974
0
        tinfl_init(&decomp);
2975
0
        for (;;)
2976
0
        {
2977
0
            size_t in_buf_size = *pIn_buf_size - in_buf_ofs, dst_buf_size = TINFL_LZ_DICT_SIZE - dict_ofs;
2978
0
            tinfl_status status = tinfl_decompress(&decomp, (const mz_uint8 *)pIn_buf + in_buf_ofs, &in_buf_size, pDict, pDict + dict_ofs, &dst_buf_size,
2979
0
                                                   (flags & ~(TINFL_FLAG_HAS_MORE_INPUT | TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF)));
2980
0
            in_buf_ofs += in_buf_size;
2981
0
            if ((dst_buf_size) && (!(*pPut_buf_func)(pDict + dict_ofs, (int)dst_buf_size, pPut_buf_user)))
2982
0
                break;
2983
0
            if (status != TINFL_STATUS_HAS_MORE_OUTPUT)
2984
0
            {
2985
0
                result = (status == TINFL_STATUS_DONE);
2986
0
                break;
2987
0
            }
2988
0
            dict_ofs = (dict_ofs + dst_buf_size) & (TINFL_LZ_DICT_SIZE - 1);
2989
0
        }
2990
0
        MZ_FREE(pDict);
2991
0
        *pIn_buf_size = in_buf_ofs;
2992
0
        return result;
2993
0
    }
2994
2995
#ifndef MINIZ_NO_MALLOC
2996
    tinfl_decompressor *tinfl_decompressor_alloc(void)
2997
0
    {
2998
0
        tinfl_decompressor *pDecomp = (tinfl_decompressor *)MZ_MALLOC(sizeof(tinfl_decompressor));
2999
0
        if (pDecomp)
3000
0
            tinfl_init(pDecomp);
3001
0
        return pDecomp;
3002
0
    }
3003
3004
    void tinfl_decompressor_free(tinfl_decompressor *pDecomp)
3005
0
    {
3006
0
        MZ_FREE(pDecomp);
3007
0
    }
3008
#endif
3009
3010
#ifdef __cplusplus
3011
}
3012
#endif
3013
3014
#endif /*#ifndef MINIZ_NO_INFLATE_APIS*/
3015
 /**************************************************************************
3016
 *
3017
 * Copyright 2013-2014 RAD Game Tools and Valve Software
3018
 * Copyright 2010-2014 Rich Geldreich and Tenacious Software LLC
3019
 * Copyright 2016 Martin Raiber
3020
 * All Rights Reserved.
3021
 *
3022
 * Permission is hereby granted, free of charge, to any person obtaining a copy
3023
 * of this software and associated documentation files (the "Software"), to deal
3024
 * in the Software without restriction, including without limitation the rights
3025
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
3026
 * copies of the Software, and to permit persons to whom the Software is
3027
 * furnished to do so, subject to the following conditions:
3028
 *
3029
 * The above copyright notice and this permission notice shall be included in
3030
 * all copies or substantial portions of the Software.
3031
 *
3032
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
3033
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
3034
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
3035
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
3036
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
3037
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
3038
 * THE SOFTWARE.
3039
 *
3040
 **************************************************************************/
3041
3042
3043
#ifndef MINIZ_NO_ARCHIVE_APIS
3044
3045
#ifdef __cplusplus
3046
extern "C"
3047
{
3048
#endif
3049
3050
    /* ------------------- .ZIP archive reading */
3051
3052
#ifdef MINIZ_NO_STDIO
3053
#define MZ_FILE void *
3054
#else
3055
#include <sys/stat.h>
3056
3057
#if defined(_MSC_VER) || defined(__MINGW64__) || defined(__MINGW32__)
3058
3059
#ifndef WIN32_LEAN_AND_MEAN
3060
#define WIN32_LEAN_AND_MEAN
3061
#endif
3062
#ifndef __cplusplus
3063
#define MICROSOFT_WINDOWS_WINBASE_H_DEFINE_INTERLOCKED_CPLUSPLUS_OVERLOADS 0
3064
#endif
3065
#ifndef NOMINMAX
3066
#define NOMINMAX
3067
#endif
3068
#include <windows.h>
3069
3070
static WCHAR *mz_utf8z_to_widechar(const char *str)
3071
{
3072
    int reqChars = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0);
3073
    WCHAR *wStr = (WCHAR *)malloc(reqChars * sizeof(WCHAR));
3074
    MultiByteToWideChar(CP_UTF8, 0, str, -1, wStr, reqChars);
3075
    return wStr;
3076
}
3077
3078
static FILE *mz_fopen(const char *pFilename, const char *pMode)
3079
{
3080
    WCHAR *wFilename = mz_utf8z_to_widechar(pFilename);
3081
    WCHAR *wMode = mz_utf8z_to_widechar(pMode);
3082
    FILE *pFile = NULL;
3083
    errno_t err = _wfopen_s(&pFile, wFilename, wMode);
3084
    free(wFilename);
3085
    free(wMode);
3086
    return err ? NULL : pFile;
3087
}
3088
3089
static FILE *mz_freopen(const char *pPath, const char *pMode, FILE *pStream)
3090
{
3091
    WCHAR *wPath = mz_utf8z_to_widechar(pPath);
3092
    WCHAR *wMode = mz_utf8z_to_widechar(pMode);
3093
    FILE *pFile = NULL;
3094
    errno_t err = _wfreopen_s(&pFile, wPath, wMode, pStream);
3095
    free(wPath);
3096
    free(wMode);
3097
    return err ? NULL : pFile;
3098
}
3099
3100
#if defined(__MINGW32__)
3101
static int mz_stat(const char *path, struct _stat *buffer)
3102
{
3103
    WCHAR *wPath = mz_utf8z_to_widechar(path);
3104
    int res = _wstat(wPath, buffer);
3105
    free(wPath);
3106
    return res;
3107
}
3108
#else
3109
static int mz_stat64(const char *path, struct __stat64 *buffer)
3110
{
3111
    WCHAR *wPath = mz_utf8z_to_widechar(path);
3112
    int res = _wstat64(wPath, buffer);
3113
    free(wPath);
3114
    return res;
3115
}
3116
#endif
3117
3118
#ifndef MINIZ_NO_TIME
3119
#include <sys/utime.h>
3120
#endif
3121
#define MZ_FOPEN mz_fopen
3122
#define MZ_FCLOSE fclose
3123
#define MZ_FREAD fread
3124
#define MZ_FWRITE fwrite
3125
#define MZ_FTELL64 _ftelli64
3126
#define MZ_FSEEK64 _fseeki64
3127
#if defined(__MINGW32__)
3128
#define MZ_FILE_STAT_STRUCT _stat
3129
#define MZ_FILE_STAT mz_stat
3130
#else
3131
#define MZ_FILE_STAT_STRUCT _stat64
3132
#define MZ_FILE_STAT mz_stat64
3133
#endif
3134
#define MZ_FFLUSH fflush
3135
#define MZ_FREOPEN mz_freopen
3136
#define MZ_DELETE_FILE remove
3137
3138
#elif defined(__WATCOMC__)
3139
#ifndef MINIZ_NO_TIME
3140
#include <sys/utime.h>
3141
#endif
3142
#define MZ_FOPEN(f, m) fopen(f, m)
3143
#define MZ_FCLOSE fclose
3144
#define MZ_FREAD fread
3145
#define MZ_FWRITE fwrite
3146
#define MZ_FTELL64 _ftelli64
3147
#define MZ_FSEEK64 _fseeki64
3148
#define MZ_FILE_STAT_STRUCT stat
3149
#define MZ_FILE_STAT stat
3150
#define MZ_FFLUSH fflush
3151
#define MZ_FREOPEN(f, m, s) freopen(f, m, s)
3152
#define MZ_DELETE_FILE remove
3153
3154
#elif defined(__TINYC__)
3155
#ifndef MINIZ_NO_TIME
3156
#include <sys/utime.h>
3157
#endif
3158
#define MZ_FOPEN(f, m) fopen(f, m)
3159
#define MZ_FCLOSE fclose
3160
#define MZ_FREAD fread
3161
#define MZ_FWRITE fwrite
3162
#define MZ_FTELL64 ftell
3163
#define MZ_FSEEK64 fseek
3164
#define MZ_FILE_STAT_STRUCT stat
3165
#define MZ_FILE_STAT stat
3166
#define MZ_FFLUSH fflush
3167
#define MZ_FREOPEN(f, m, s) freopen(f, m, s)
3168
#define MZ_DELETE_FILE remove
3169
3170
#elif defined(__USE_LARGEFILE64) /* gcc, clang */
3171
#ifndef MINIZ_NO_TIME
3172
#include <utime.h>
3173
#endif
3174
#define MZ_FOPEN(f, m) fopen64(f, m)
3175
#define MZ_FCLOSE fclose
3176
#define MZ_FREAD fread
3177
#define MZ_FWRITE fwrite
3178
#define MZ_FTELL64 ftello64
3179
#define MZ_FSEEK64 fseeko64
3180
#define MZ_FILE_STAT_STRUCT stat64
3181
#define MZ_FILE_STAT stat64
3182
#define MZ_FFLUSH fflush
3183
#define MZ_FREOPEN(p, m, s) freopen64(p, m, s)
3184
#define MZ_DELETE_FILE remove
3185
3186
#elif defined(__APPLE__) || defined(__FreeBSD__) || (defined(__linux__) && defined(__x86_64__))
3187
#ifndef MINIZ_NO_TIME
3188
#include <utime.h>
3189
#endif
3190
22.9k
#define MZ_FOPEN(f, m) fopen(f, m)
3191
11.2k
#define MZ_FCLOSE fclose
3192
46.9k
#define MZ_FREAD fread
3193
35.8k
#define MZ_FWRITE fwrite
3194
91.2k
#define MZ_FTELL64 ftello
3195
55.0k
#define MZ_FSEEK64 fseeko
3196
#define MZ_FILE_STAT_STRUCT stat
3197
5.53k
#define MZ_FILE_STAT stat
3198
5.48k
#define MZ_FFLUSH fflush
3199
0
#define MZ_FREOPEN(p, m, s) freopen(p, m, s)
3200
31
#define MZ_DELETE_FILE remove
3201
3202
#else
3203
#pragma message("Using fopen, ftello, fseeko, stat() etc. path for file I/O - this path may not support large files.")
3204
#ifndef MINIZ_NO_TIME
3205
#include <utime.h>
3206
#endif
3207
#define MZ_FOPEN(f, m) fopen(f, m)
3208
#define MZ_FCLOSE fclose
3209
#define MZ_FREAD fread
3210
#define MZ_FWRITE fwrite
3211
#ifdef __STRICT_ANSI__
3212
#define MZ_FTELL64 ftell
3213
#define MZ_FSEEK64 fseek
3214
#else
3215
#define MZ_FTELL64 ftello
3216
#define MZ_FSEEK64 fseeko
3217
#endif
3218
#define MZ_FILE_STAT_STRUCT stat
3219
#define MZ_FILE_STAT stat
3220
#define MZ_FFLUSH fflush
3221
#define MZ_FREOPEN(f, m, s) freopen(f, m, s)
3222
#define MZ_DELETE_FILE remove
3223
#endif /* #ifdef _MSC_VER */
3224
#endif /* #ifdef MINIZ_NO_STDIO */
3225
3226
1.88M
#define MZ_TOLOWER(c) ((((c) >= 'A') && ((c) <= 'Z')) ? ((c) - 'A' + 'a') : (c))
3227
3228
    /* Various ZIP archive enums. To completely avoid cross platform compiler alignment and platform endian issues, miniz.c doesn't use structs for any of this stuff. */
3229
    enum
3230
    {
3231
        /* ZIP archive identifiers and record sizes */
3232
        MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG = 0x06054b50,
3233
        MZ_ZIP_CENTRAL_DIR_HEADER_SIG = 0x02014b50,
3234
        MZ_ZIP_LOCAL_DIR_HEADER_SIG = 0x04034b50,
3235
        MZ_ZIP_LOCAL_DIR_HEADER_SIZE = 30,
3236
        MZ_ZIP_CENTRAL_DIR_HEADER_SIZE = 46,
3237
        MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE = 22,
3238
3239
        /* ZIP64 archive identifier and record sizes */
3240
        MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIG = 0x06064b50,
3241
        MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIG = 0x07064b50,
3242
        MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE = 56,
3243
        MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE = 20,
3244
        MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID = 0x0001,
3245
        MZ_ZIP_DATA_DESCRIPTOR_ID = 0x08074b50,
3246
        MZ_ZIP_DATA_DESCRIPTER_SIZE64 = 24,
3247
        MZ_ZIP_DATA_DESCRIPTER_SIZE32 = 16,
3248
3249
        /* Central directory header record offsets */
3250
        MZ_ZIP_CDH_SIG_OFS = 0,
3251
        MZ_ZIP_CDH_VERSION_MADE_BY_OFS = 4,
3252
        MZ_ZIP_CDH_VERSION_NEEDED_OFS = 6,
3253
        MZ_ZIP_CDH_BIT_FLAG_OFS = 8,
3254
        MZ_ZIP_CDH_METHOD_OFS = 10,
3255
        MZ_ZIP_CDH_FILE_TIME_OFS = 12,
3256
        MZ_ZIP_CDH_FILE_DATE_OFS = 14,
3257
        MZ_ZIP_CDH_CRC32_OFS = 16,
3258
        MZ_ZIP_CDH_COMPRESSED_SIZE_OFS = 20,
3259
        MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS = 24,
3260
        MZ_ZIP_CDH_FILENAME_LEN_OFS = 28,
3261
        MZ_ZIP_CDH_EXTRA_LEN_OFS = 30,
3262
        MZ_ZIP_CDH_COMMENT_LEN_OFS = 32,
3263
        MZ_ZIP_CDH_DISK_START_OFS = 34,
3264
        MZ_ZIP_CDH_INTERNAL_ATTR_OFS = 36,
3265
        MZ_ZIP_CDH_EXTERNAL_ATTR_OFS = 38,
3266
        MZ_ZIP_CDH_LOCAL_HEADER_OFS = 42,
3267
3268
        /* Local directory header offsets */
3269
        MZ_ZIP_LDH_SIG_OFS = 0,
3270
        MZ_ZIP_LDH_VERSION_NEEDED_OFS = 4,
3271
        MZ_ZIP_LDH_BIT_FLAG_OFS = 6,
3272
        MZ_ZIP_LDH_METHOD_OFS = 8,
3273
        MZ_ZIP_LDH_FILE_TIME_OFS = 10,
3274
        MZ_ZIP_LDH_FILE_DATE_OFS = 12,
3275
        MZ_ZIP_LDH_CRC32_OFS = 14,
3276
        MZ_ZIP_LDH_COMPRESSED_SIZE_OFS = 18,
3277
        MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS = 22,
3278
        MZ_ZIP_LDH_FILENAME_LEN_OFS = 26,
3279
        MZ_ZIP_LDH_EXTRA_LEN_OFS = 28,
3280
        MZ_ZIP_LDH_BIT_FLAG_HAS_LOCATOR = 1 << 3,
3281
3282
        /* End of central directory offsets */
3283
        MZ_ZIP_ECDH_SIG_OFS = 0,
3284
        MZ_ZIP_ECDH_NUM_THIS_DISK_OFS = 4,
3285
        MZ_ZIP_ECDH_NUM_DISK_CDIR_OFS = 6,
3286
        MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS = 8,
3287
        MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS = 10,
3288
        MZ_ZIP_ECDH_CDIR_SIZE_OFS = 12,
3289
        MZ_ZIP_ECDH_CDIR_OFS_OFS = 16,
3290
        MZ_ZIP_ECDH_COMMENT_SIZE_OFS = 20,
3291
3292
        /* ZIP64 End of central directory locator offsets */
3293
        MZ_ZIP64_ECDL_SIG_OFS = 0,                    /* 4 bytes */
3294
        MZ_ZIP64_ECDL_NUM_DISK_CDIR_OFS = 4,          /* 4 bytes */
3295
        MZ_ZIP64_ECDL_REL_OFS_TO_ZIP64_ECDR_OFS = 8,  /* 8 bytes */
3296
        MZ_ZIP64_ECDL_TOTAL_NUMBER_OF_DISKS_OFS = 16, /* 4 bytes */
3297
3298
        /* ZIP64 End of central directory header offsets */
3299
        MZ_ZIP64_ECDH_SIG_OFS = 0,                       /* 4 bytes */
3300
        MZ_ZIP64_ECDH_SIZE_OF_RECORD_OFS = 4,            /* 8 bytes */
3301
        MZ_ZIP64_ECDH_VERSION_MADE_BY_OFS = 12,          /* 2 bytes */
3302
        MZ_ZIP64_ECDH_VERSION_NEEDED_OFS = 14,           /* 2 bytes */
3303
        MZ_ZIP64_ECDH_NUM_THIS_DISK_OFS = 16,            /* 4 bytes */
3304
        MZ_ZIP64_ECDH_NUM_DISK_CDIR_OFS = 20,            /* 4 bytes */
3305
        MZ_ZIP64_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS = 24, /* 8 bytes */
3306
        MZ_ZIP64_ECDH_CDIR_TOTAL_ENTRIES_OFS = 32,       /* 8 bytes */
3307
        MZ_ZIP64_ECDH_CDIR_SIZE_OFS = 40,                /* 8 bytes */
3308
        MZ_ZIP64_ECDH_CDIR_OFS_OFS = 48,                 /* 8 bytes */
3309
        MZ_ZIP_VERSION_MADE_BY_DOS_FILESYSTEM_ID = 0,
3310
        MZ_ZIP_DOS_DIR_ATTRIBUTE_BITFLAG = 0x10,
3311
        MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED = 1,
3312
        MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG = 32,
3313
        MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION = 64,
3314
        MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_LOCAL_DIR_IS_MASKED = 8192,
3315
        MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_UTF8 = 1 << 11
3316
    };
3317
3318
    typedef struct
3319
    {
3320
        void *m_p;
3321
        size_t m_size, m_capacity;
3322
        mz_uint m_element_size;
3323
    } mz_zip_array;
3324
3325
    struct mz_zip_internal_state_tag
3326
    {
3327
        mz_zip_array m_central_dir;
3328
        mz_zip_array m_central_dir_offsets;
3329
        mz_zip_array m_sorted_central_dir_offsets;
3330
3331
        /* The flags passed in when the archive is initially opened. */
3332
        mz_uint32 m_init_flags;
3333
3334
        /* MZ_TRUE if the archive has a zip64 end of central directory headers, etc. */
3335
        mz_bool m_zip64;
3336
3337
        /* MZ_TRUE if we found zip64 extended info in the central directory (m_zip64 will also be slammed to true too, even if we didn't find a zip64 end of central dir header, etc.) */
3338
        mz_bool m_zip64_has_extended_info_fields;
3339
3340
        /* These fields are used by the file, FILE, memory, and memory/heap read/write helpers. */
3341
        MZ_FILE *m_pFile;
3342
        mz_uint64 m_file_archive_start_ofs;
3343
3344
        void *m_pMem;
3345
        size_t m_mem_size;
3346
        size_t m_mem_capacity;
3347
    };
3348
3349
49.3k
#define MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(array_ptr, element_size) (array_ptr)->m_element_size = element_size
3350
3351
#if defined(DEBUG) || defined(_DEBUG)
3352
    static MZ_FORCEINLINE mz_uint mz_zip_array_range_check(const mz_zip_array *pArray, mz_uint index)
3353
    {
3354
        MZ_ASSERT(index < pArray->m_size);
3355
        return index;
3356
    }
3357
#define MZ_ZIP_ARRAY_ELEMENT(array_ptr, element_type, index) ((element_type *)((array_ptr)->m_p))[mz_zip_array_range_check(array_ptr, index)]
3358
#else
3359
1.15M
#define MZ_ZIP_ARRAY_ELEMENT(array_ptr, element_type, index) ((element_type *)((array_ptr)->m_p))[index]
3360
#endif
3361
3362
    static MZ_FORCEINLINE void mz_zip_array_init(mz_zip_array *pArray, mz_uint32 element_size)
3363
34.6k
    {
3364
34.6k
        memset(pArray, 0, sizeof(mz_zip_array));
3365
34.6k
        pArray->m_element_size = element_size;
3366
34.6k
    }
3367
3368
    static MZ_FORCEINLINE void mz_zip_array_clear(mz_zip_archive *pZip, mz_zip_array *pArray)
3369
60.9k
    {
3370
60.9k
        pZip->m_pFree(pZip->m_pAlloc_opaque, pArray->m_p);
3371
60.9k
        memset(pArray, 0, sizeof(mz_zip_array));
3372
60.9k
    }
3373
3374
    static mz_bool mz_zip_array_ensure_capacity(mz_zip_archive *pZip, mz_zip_array *pArray, size_t min_new_capacity, mz_uint growing)
3375
47.0k
    {
3376
47.0k
        void *pNew_p;
3377
47.0k
        size_t new_capacity = min_new_capacity;
3378
47.0k
        MZ_ASSERT(pArray->m_element_size);
3379
47.0k
        if (pArray->m_capacity >= min_new_capacity)
3380
0
            return MZ_TRUE;
3381
47.0k
        if (growing)
3382
10.8k
        {
3383
10.8k
            new_capacity = MZ_MAX(1, pArray->m_capacity);
3384
36.4k
            while (new_capacity < min_new_capacity)
3385
25.5k
                new_capacity *= 2;
3386
10.8k
        }
3387
47.0k
        if (NULL == (pNew_p = pZip->m_pRealloc(pZip->m_pAlloc_opaque, pArray->m_p, pArray->m_element_size, new_capacity)))
3388
0
            return MZ_FALSE;
3389
47.0k
        pArray->m_p = pNew_p;
3390
47.0k
        pArray->m_capacity = new_capacity;
3391
47.0k
        return MZ_TRUE;
3392
47.0k
    }
3393
3394
    static MZ_FORCEINLINE mz_bool mz_zip_array_reserve(mz_zip_archive *pZip, mz_zip_array *pArray, size_t new_capacity, mz_uint growing)
3395
10.8k
    {
3396
10.8k
        if (new_capacity > pArray->m_capacity)
3397
10.8k
        {
3398
10.8k
            if (!mz_zip_array_ensure_capacity(pZip, pArray, new_capacity, growing))
3399
0
                return MZ_FALSE;
3400
10.8k
        }
3401
10.8k
        return MZ_TRUE;
3402
10.8k
    }
3403
3404
    static MZ_FORCEINLINE mz_bool mz_zip_array_resize(mz_zip_archive *pZip, mz_zip_array *pArray, size_t new_size, mz_uint growing)
3405
70.8k
    {
3406
70.8k
        if (new_size > pArray->m_capacity)
3407
36.1k
        {
3408
36.1k
            if (!mz_zip_array_ensure_capacity(pZip, pArray, new_size, growing))
3409
0
                return MZ_FALSE;
3410
36.1k
        }
3411
70.8k
        pArray->m_size = new_size;
3412
70.8k
        return MZ_TRUE;
3413
70.8k
    }
3414
3415
    static MZ_FORCEINLINE mz_bool mz_zip_array_ensure_room(mz_zip_archive *pZip, mz_zip_array *pArray, size_t n)
3416
10.8k
    {
3417
10.8k
        return mz_zip_array_reserve(pZip, pArray, pArray->m_size + n, MZ_TRUE);
3418
10.8k
    }
3419
3420
    static MZ_FORCEINLINE mz_bool mz_zip_array_push_back(mz_zip_archive *pZip, mz_zip_array *pArray, const void *pElements, size_t n)
3421
32.6k
    {
3422
32.6k
        size_t orig_size = pArray->m_size;
3423
32.6k
        if (!mz_zip_array_resize(pZip, pArray, orig_size + n, MZ_TRUE))
3424
0
            return MZ_FALSE;
3425
32.6k
        if (n > 0)
3426
20.2k
            memcpy((mz_uint8 *)pArray->m_p + orig_size * pArray->m_element_size, pElements, n * pArray->m_element_size);
3427
32.6k
        return MZ_TRUE;
3428
32.6k
    }
3429
3430
#ifndef MINIZ_NO_TIME
3431
    static MZ_TIME_T mz_zip_dos_to_time_t(int dos_time, int dos_date)
3432
99.4k
    {
3433
99.4k
        struct tm tm;
3434
99.4k
        memset(&tm, 0, sizeof(tm));
3435
99.4k
        tm.tm_isdst = -1;
3436
99.4k
        tm.tm_year = ((dos_date >> 9) & 127) + 1980 - 1900;
3437
99.4k
        tm.tm_mon = ((dos_date >> 5) & 15) - 1;
3438
99.4k
        tm.tm_mday = dos_date & 31;
3439
99.4k
        tm.tm_hour = (dos_time >> 11) & 31;
3440
99.4k
        tm.tm_min = (dos_time >> 5) & 63;
3441
99.4k
        tm.tm_sec = (dos_time << 1) & 62;
3442
99.4k
        return mktime(&tm);
3443
99.4k
    }
3444
3445
#ifndef MINIZ_NO_ARCHIVE_WRITING_APIS
3446
    static void mz_zip_time_t_to_dos_time(MZ_TIME_T time, mz_uint16 *pDOS_time, mz_uint16 *pDOS_date)
3447
5.48k
    {
3448
#ifdef _MSC_VER
3449
        struct tm tm_struct;
3450
        struct tm *tm = &tm_struct;
3451
        errno_t err = localtime_s(tm, &time);
3452
        if (err)
3453
        {
3454
            *pDOS_date = 0;
3455
            *pDOS_time = 0;
3456
            return;
3457
        }
3458
#else
3459
5.48k
        struct tm *tm = localtime(&time);
3460
5.48k
#endif /* #ifdef _MSC_VER */
3461
3462
5.48k
        *pDOS_time = (mz_uint16)(((tm->tm_hour) << 11) + ((tm->tm_min) << 5) + ((tm->tm_sec) >> 1));
3463
5.48k
        *pDOS_date = (mz_uint16)(((tm->tm_year + 1900 - 1980) << 9) + ((tm->tm_mon + 1) << 5) + tm->tm_mday);
3464
5.48k
    }
3465
#endif /* MINIZ_NO_ARCHIVE_WRITING_APIS */
3466
3467
#ifndef MINIZ_NO_STDIO
3468
#ifndef MINIZ_NO_ARCHIVE_WRITING_APIS
3469
    static mz_bool mz_zip_get_file_modified_time(const char *pFilename, MZ_TIME_T *pTime)
3470
0
    {
3471
0
        struct MZ_FILE_STAT_STRUCT file_stat;
3472
3473
        /* On Linux with x86 glibc, this call will fail on large files (I think >= 0x80000000 bytes) unless you compiled with _LARGEFILE64_SOURCE. Argh. */
3474
0
        if (MZ_FILE_STAT(pFilename, &file_stat) != 0)
3475
0
            return MZ_FALSE;
3476
3477
0
        *pTime = file_stat.st_mtime;
3478
3479
0
        return MZ_TRUE;
3480
0
    }
3481
#endif /* #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS*/
3482
3483
    static mz_bool mz_zip_set_file_times(const char *pFilename, MZ_TIME_T access_time, MZ_TIME_T modified_time)
3484
0
    {
3485
0
        struct utimbuf t;
3486
3487
0
        memset(&t, 0, sizeof(t));
3488
0
        t.actime = access_time;
3489
0
        t.modtime = modified_time;
3490
3491
0
        return !utime(pFilename, &t);
3492
0
    }
3493
#endif /* #ifndef MINIZ_NO_STDIO */
3494
#endif /* #ifndef MINIZ_NO_TIME */
3495
3496
    static MZ_FORCEINLINE mz_bool mz_zip_set_error(mz_zip_archive *pZip, mz_zip_error err_num)
3497
65.8k
    {
3498
65.8k
        if (pZip)
3499
65.8k
            pZip->m_last_error = err_num;
3500
65.8k
        return MZ_FALSE;
3501
65.8k
    }
3502
3503
    static mz_bool mz_zip_reader_init_internal(mz_zip_archive *pZip, mz_uint flags)
3504
13.5k
    {
3505
13.5k
        (void)flags;
3506
13.5k
        if ((!pZip) || (pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_INVALID))
3507
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
3508
3509
13.5k
        if (!pZip->m_pAlloc)
3510
13.5k
            pZip->m_pAlloc = miniz_def_alloc_func;
3511
13.5k
        if (!pZip->m_pFree)
3512
13.5k
            pZip->m_pFree = miniz_def_free_func;
3513
13.5k
        if (!pZip->m_pRealloc)
3514
13.5k
            pZip->m_pRealloc = miniz_def_realloc_func;
3515
3516
13.5k
        pZip->m_archive_size = 0;
3517
13.5k
        pZip->m_central_directory_file_ofs = 0;
3518
13.5k
        pZip->m_total_files = 0;
3519
13.5k
        pZip->m_last_error = MZ_ZIP_NO_ERROR;
3520
3521
13.5k
        if (NULL == (pZip->m_pState = (mz_zip_internal_state *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(mz_zip_internal_state))))
3522
0
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
3523
3524
13.5k
        memset(pZip->m_pState, 0, sizeof(mz_zip_internal_state));
3525
13.5k
        MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir, sizeof(mz_uint8));
3526
13.5k
        MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir_offsets, sizeof(mz_uint32));
3527
13.5k
        MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_sorted_central_dir_offsets, sizeof(mz_uint32));
3528
13.5k
        pZip->m_pState->m_init_flags = flags;
3529
13.5k
        pZip->m_pState->m_zip64 = MZ_FALSE;
3530
13.5k
        pZip->m_pState->m_zip64_has_extended_info_fields = MZ_FALSE;
3531
3532
13.5k
        pZip->m_zip_mode = MZ_ZIP_MODE_READING;
3533
3534
13.5k
        return MZ_TRUE;
3535
13.5k
    }
3536
3537
    static MZ_FORCEINLINE mz_bool mz_zip_reader_filename_less(const mz_zip_array *pCentral_dir_array, const mz_zip_array *pCentral_dir_offsets, mz_uint l_index, mz_uint r_index)
3538
191k
    {
3539
191k
        const mz_uint8 *pL = &MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_array, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets, mz_uint32, l_index)), *pE;
3540
191k
        const mz_uint8 *pR = &MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_array, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets, mz_uint32, r_index));
3541
191k
        mz_uint l_len = MZ_READ_LE16(pL + MZ_ZIP_CDH_FILENAME_LEN_OFS), r_len = MZ_READ_LE16(pR + MZ_ZIP_CDH_FILENAME_LEN_OFS);
3542
191k
        mz_uint8 l = 0, r = 0;
3543
191k
        pL += MZ_ZIP_CENTRAL_DIR_HEADER_SIZE;
3544
191k
        pR += MZ_ZIP_CENTRAL_DIR_HEADER_SIZE;
3545
191k
        pE = pL + MZ_MIN(l_len, r_len);
3546
284k
        while (pL < pE)
3547
173k
        {
3548
173k
            if ((l = MZ_TOLOWER(*pL)) != (r = MZ_TOLOWER(*pR)))
3549
80.6k
                break;
3550
92.5k
            pL++;
3551
92.5k
            pR++;
3552
92.5k
        }
3553
191k
        return (pL == pE) ? (l_len < r_len) : (l < r);
3554
191k
    }
3555
3556
#define MZ_SWAP_UINT32(a, b) \
3557
92.0k
    do                       \
3558
92.0k
    {                        \
3559
92.0k
        mz_uint32 t = a;     \
3560
92.0k
        a = b;               \
3561
92.0k
        b = t;               \
3562
92.0k
    }                        \
3563
130k
    MZ_MACRO_END
3564
3565
    /* Heap sort of lowercased filenames, used to help accelerate plain central directory searches by mz_zip_reader_locate_file(). (Could also use qsort(), but it could allocate memory.) */
3566
    static void mz_zip_reader_sort_central_dir_offsets_by_filename(mz_zip_archive *pZip)
3567
3.78k
    {
3568
3.78k
        mz_zip_internal_state *pState = pZip->m_pState;
3569
3.78k
        const mz_zip_array *pCentral_dir_offsets = &pState->m_central_dir_offsets;
3570
3.78k
        const mz_zip_array *pCentral_dir = &pState->m_central_dir;
3571
3.78k
        mz_uint32 *pIndices;
3572
3.78k
        mz_uint32 start, end;
3573
3.78k
        const mz_uint32 size = pZip->m_total_files;
3574
3575
3.78k
        if (size <= 1U)
3576
2.47k
            return;
3577
3578
1.31k
        pIndices = &MZ_ZIP_ARRAY_ELEMENT(&pState->m_sorted_central_dir_offsets, mz_uint32, 0);
3579
3580
1.31k
        start = (size - 2U) >> 1U;
3581
1.31k
        for (;;)
3582
17.0k
        {
3583
17.0k
            mz_uint64 child, root = start;
3584
17.0k
            for (;;)
3585
25.7k
            {
3586
25.7k
                if ((child = (root << 1U) + 1U) >= size)
3587
3.66k
                    break;
3588
22.0k
                child += (((child + 1U) < size) && (mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[child], pIndices[child + 1U])));
3589
22.0k
                if (!mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[root], pIndices[child]))
3590
13.3k
                    break;
3591
8.70k
                MZ_SWAP_UINT32(pIndices[root], pIndices[child]);
3592
8.70k
                root = child;
3593
8.70k
            }
3594
17.0k
            if (!start)
3595
1.31k
                break;
3596
15.7k
            start--;
3597
15.7k
        }
3598
3599
1.31k
        end = size - 1;
3600
34.4k
        while (end > 0)
3601
33.0k
        {
3602
33.0k
            mz_uint64 child, root = 0;
3603
33.0k
            MZ_SWAP_UINT32(pIndices[end], pIndices[0]);
3604
33.0k
            for (;;)
3605
83.3k
            {
3606
83.3k
                if ((child = (root << 1U) + 1U) >= end)
3607
8.32k
                    break;
3608
74.9k
                child += (((child + 1U) < end) && mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[child], pIndices[child + 1U]));
3609
74.9k
                if (!mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[root], pIndices[child]))
3610
24.7k
                    break;
3611
50.2k
                MZ_SWAP_UINT32(pIndices[root], pIndices[child]);
3612
50.2k
                root = child;
3613
50.2k
            }
3614
33.0k
            end--;
3615
33.0k
        }
3616
1.31k
    }
3617
3618
    static mz_bool mz_zip_reader_locate_header_sig(mz_zip_archive *pZip, mz_uint32 record_sig, mz_uint32 record_size, mz_int64 *pOfs)
3619
13.5k
    {
3620
13.5k
        mz_int64 cur_file_ofs;
3621
13.5k
        mz_uint32 buf_u32[4096 / sizeof(mz_uint32)];
3622
13.5k
        mz_uint8 *pBuf = (mz_uint8 *)buf_u32;
3623
3624
        /* Basic sanity checks - reject files which are too small */
3625
13.5k
        if (pZip->m_archive_size < record_size)
3626
0
            return MZ_FALSE;
3627
3628
        /* Find the record by scanning the file from the end towards the beginning. */
3629
13.5k
        cur_file_ofs = MZ_MAX((mz_int64)pZip->m_archive_size - (mz_int64)sizeof(buf_u32), 0);
3630
13.5k
        for (;;)
3631
13.7k
        {
3632
13.7k
            int i, n = (int)MZ_MIN(sizeof(buf_u32), pZip->m_archive_size - cur_file_ofs);
3633
3634
13.7k
            if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf, n) != (mz_uint)n)
3635
17
                return MZ_FALSE;
3636
3637
1.11M
            for (i = n - 4; i >= 0; --i)
3638
1.11M
            {
3639
1.11M
                mz_uint s = MZ_READ_LE32(pBuf + i);
3640
1.11M
                if (s == record_sig)
3641
13.6k
                {
3642
13.6k
                    if ((pZip->m_archive_size - (cur_file_ofs + i)) >= record_size)
3643
13.5k
                        break;
3644
13.6k
                }
3645
1.11M
            }
3646
3647
13.7k
            if (i >= 0)
3648
13.5k
            {
3649
13.5k
                cur_file_ofs += i;
3650
13.5k
                break;
3651
13.5k
            }
3652
3653
            /* Give up if we've searched the entire file, or we've gone back "too far" (~64kb) */
3654
227
            if ((!cur_file_ofs) || ((pZip->m_archive_size - cur_file_ofs) >= ((mz_uint64)(MZ_UINT16_MAX) + record_size)))
3655
48
                return MZ_FALSE;
3656
3657
179
            cur_file_ofs = MZ_MAX(cur_file_ofs - (sizeof(buf_u32) - 3), 0);
3658
179
        }
3659
3660
13.5k
        *pOfs = cur_file_ofs;
3661
13.5k
        return MZ_TRUE;
3662
13.5k
    }
3663
3664
    static mz_bool mz_zip_reader_eocd64_valid(mz_zip_archive *pZip, uint64_t offset, uint8_t *buf)
3665
2.19k
    {
3666
2.19k
        if (pZip->m_pRead(pZip->m_pIO_opaque, offset, buf, MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE) == MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE)
3667
2.19k
        {
3668
2.19k
            if (MZ_READ_LE32(buf + MZ_ZIP64_ECDH_SIG_OFS) == MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIG)
3669
1.81k
            {
3670
1.81k
                return MZ_TRUE;
3671
1.81k
            }
3672
2.19k
        }
3673
3674
383
        return MZ_FALSE;
3675
2.19k
    }
3676
3677
    static mz_bool mz_zip_reader_read_central_dir(mz_zip_archive *pZip, mz_uint flags)
3678
13.5k
    {
3679
13.5k
        mz_uint cdir_size = 0, cdir_entries_on_this_disk = 0, num_this_disk = 0, cdir_disk_index = 0;
3680
13.5k
        mz_uint64 cdir_ofs = 0, eocd_ofs = 0, archive_ofs = 0;
3681
13.5k
        mz_int64 cur_file_ofs = 0;
3682
13.5k
        const mz_uint8 *p;
3683
3684
13.5k
        mz_uint32 buf_u32[4096 / sizeof(mz_uint32)];
3685
13.5k
        mz_uint8 *pBuf = (mz_uint8 *)buf_u32;
3686
13.5k
        mz_bool sort_central_dir = ((flags & MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY) == 0);
3687
13.5k
        mz_uint32 zip64_end_of_central_dir_locator_u32[(MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)];
3688
13.5k
        mz_uint8 *pZip64_locator = (mz_uint8 *)zip64_end_of_central_dir_locator_u32;
3689
3690
13.5k
        mz_uint32 zip64_end_of_central_dir_header_u32[(MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)];
3691
13.5k
        mz_uint8 *pZip64_end_of_central_dir = (mz_uint8 *)zip64_end_of_central_dir_header_u32;
3692
3693
13.5k
        mz_uint64 zip64_end_of_central_dir_ofs = 0;
3694
3695
        /* Basic sanity checks - reject files which are too small, and check the first 4 bytes of the file to make sure a local header is there. */
3696
13.5k
        if (pZip->m_archive_size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
3697
0
            return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
3698
3699
13.5k
        if (!mz_zip_reader_locate_header_sig(pZip, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE, &cur_file_ofs))
3700
65
            return mz_zip_set_error(pZip, MZ_ZIP_FAILED_FINDING_CENTRAL_DIR);
3701
3702
13.5k
        eocd_ofs = cur_file_ofs;
3703
        /* Read and verify the end of central directory record. */
3704
13.5k
        if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) != MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
3705
0
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
3706
3707
13.5k
        if (MZ_READ_LE32(pBuf + MZ_ZIP_ECDH_SIG_OFS) != MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG)
3708
0
            return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
3709
3710
13.5k
        if (cur_file_ofs >= (MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE + MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE))
3711
10.7k
        {
3712
10.7k
            if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs - MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE, pZip64_locator, MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE) == MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE)
3713
10.7k
            {
3714
10.7k
                if (MZ_READ_LE32(pZip64_locator + MZ_ZIP64_ECDL_SIG_OFS) == MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIG)
3715
2.10k
                {
3716
2.10k
                    pZip->m_pState->m_zip64 = MZ_TRUE;
3717
2.10k
                }
3718
10.7k
            }
3719
10.7k
        }
3720
3721
13.5k
        if (pZip->m_pState->m_zip64)
3722
2.10k
        {
3723
            /* Try locating the EOCD64 right before the EOCD64 locator. This works even
3724
             * when the effective start of the zip header is not yet known. */
3725
2.10k
            if (cur_file_ofs < MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE +
3726
2.10k
                                   MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE)
3727
0
                return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
3728
3729
2.10k
            zip64_end_of_central_dir_ofs = cur_file_ofs -
3730
2.10k
                                           MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE -
3731
2.10k
                                           MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE;
3732
3733
2.10k
            if (!mz_zip_reader_eocd64_valid(pZip, zip64_end_of_central_dir_ofs,
3734
2.10k
                                            pZip64_end_of_central_dir))
3735
324
            {
3736
                /* That failed, try reading where the locator tells us to. */
3737
324
                zip64_end_of_central_dir_ofs = MZ_READ_LE64(
3738
324
                    pZip64_locator + MZ_ZIP64_ECDL_REL_OFS_TO_ZIP64_ECDR_OFS);
3739
3740
324
                if (zip64_end_of_central_dir_ofs >
3741
324
                    (pZip->m_archive_size - MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE))
3742
231
                    return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
3743
3744
93
                if (!mz_zip_reader_eocd64_valid(pZip, zip64_end_of_central_dir_ofs,
3745
93
                                                pZip64_end_of_central_dir))
3746
59
                    return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
3747
93
            }
3748
2.10k
        }
3749
3750
13.2k
        pZip->m_total_files = MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS);
3751
13.2k
        cdir_entries_on_this_disk = MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS);
3752
13.2k
        num_this_disk = MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_NUM_THIS_DISK_OFS);
3753
13.2k
        cdir_disk_index = MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_NUM_DISK_CDIR_OFS);
3754
13.2k
        cdir_size = MZ_READ_LE32(pBuf + MZ_ZIP_ECDH_CDIR_SIZE_OFS);
3755
13.2k
        cdir_ofs = MZ_READ_LE32(pBuf + MZ_ZIP_ECDH_CDIR_OFS_OFS);
3756
3757
13.2k
        if (pZip->m_pState->m_zip64)
3758
1.81k
        {
3759
1.81k
            mz_uint32 zip64_total_num_of_disks = MZ_READ_LE32(pZip64_locator + MZ_ZIP64_ECDL_TOTAL_NUMBER_OF_DISKS_OFS);
3760
1.81k
            mz_uint64 zip64_cdir_total_entries = MZ_READ_LE64(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_CDIR_TOTAL_ENTRIES_OFS);
3761
1.81k
            mz_uint64 zip64_cdir_total_entries_on_this_disk = MZ_READ_LE64(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS);
3762
1.81k
            mz_uint64 zip64_size_of_end_of_central_dir_record = MZ_READ_LE64(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_SIZE_OF_RECORD_OFS);
3763
1.81k
            mz_uint64 zip64_size_of_central_directory = MZ_READ_LE64(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_CDIR_SIZE_OFS);
3764
3765
1.81k
            if (zip64_size_of_end_of_central_dir_record < (MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE - 12))
3766
6
                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
3767
3768
1.80k
            if (zip64_total_num_of_disks != 1U)
3769
124
                return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_MULTIDISK);
3770
3771
            /* Check for miniz's practical limits */
3772
1.68k
            if (zip64_cdir_total_entries > MZ_UINT32_MAX)
3773
61
                return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
3774
3775
1.62k
            pZip->m_total_files = (mz_uint32)zip64_cdir_total_entries;
3776
3777
1.62k
            if (zip64_cdir_total_entries_on_this_disk > MZ_UINT32_MAX)
3778
52
                return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
3779
3780
1.57k
            cdir_entries_on_this_disk = (mz_uint32)zip64_cdir_total_entries_on_this_disk;
3781
3782
            /* Check for miniz's current practical limits (sorry, this should be enough for millions of files) */
3783
1.57k
            if (zip64_size_of_central_directory > MZ_UINT32_MAX)
3784
47
                return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE);
3785
3786
1.52k
            cdir_size = (mz_uint32)zip64_size_of_central_directory;
3787
3788
1.52k
            num_this_disk = MZ_READ_LE32(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_NUM_THIS_DISK_OFS);
3789
3790
1.52k
            cdir_disk_index = MZ_READ_LE32(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_NUM_DISK_CDIR_OFS);
3791
3792
1.52k
            cdir_ofs = MZ_READ_LE64(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_CDIR_OFS_OFS);
3793
1.52k
        }
3794
3795
12.9k
        if (pZip->m_total_files != cdir_entries_on_this_disk)
3796
99
            return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_MULTIDISK);
3797
3798
12.8k
        if (((num_this_disk | cdir_disk_index) != 0) && ((num_this_disk != 1) || (cdir_disk_index != 1)))
3799
118
            return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_MULTIDISK);
3800
3801
12.7k
        if (cdir_size < (mz_uint64)pZip->m_total_files * MZ_ZIP_CENTRAL_DIR_HEADER_SIZE)
3802
49
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
3803
3804
12.6k
        if ((cdir_ofs + (mz_uint64)cdir_size) > pZip->m_archive_size)
3805
138
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
3806
3807
12.5k
        if (eocd_ofs < cdir_ofs + cdir_size)
3808
16
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
3809
3810
        /* The end of central dir follows the central dir, unless the zip file has
3811
         * some trailing data (e.g. it is appended to an executable file). */
3812
12.5k
        archive_ofs = eocd_ofs - (cdir_ofs + cdir_size);
3813
12.5k
        if (pZip->m_pState->m_zip64)
3814
1.34k
        {
3815
1.34k
            if (archive_ofs < MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE +
3816
1.34k
                                  MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE)
3817
7
                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
3818
3819
1.34k
            archive_ofs -= MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE +
3820
1.34k
                           MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE;
3821
1.34k
        }
3822
3823
        /* Update the archive start position, but only if not specified. */
3824
12.5k
        if ((pZip->m_zip_type == MZ_ZIP_TYPE_FILE || pZip->m_zip_type == MZ_ZIP_TYPE_CFILE ||
3825
8.25k
            pZip->m_zip_type == MZ_ZIP_TYPE_USER) && pZip->m_pState->m_file_archive_start_ofs == 0)
3826
8.25k
        {
3827
8.25k
            pZip->m_pState->m_file_archive_start_ofs = archive_ofs;
3828
8.25k
            pZip->m_archive_size -= archive_ofs;
3829
8.25k
        }
3830
3831
12.5k
        pZip->m_central_directory_file_ofs = cdir_ofs;
3832
3833
12.5k
        if (pZip->m_total_files)
3834
12.5k
        {
3835
12.5k
            mz_uint i, n;
3836
            /* Read the entire central directory into a heap block, and allocate another heap block to hold the unsorted central dir file record offsets, and possibly another to hold the sorted indices. */
3837
12.5k
            if ((!mz_zip_array_resize(pZip, &pZip->m_pState->m_central_dir, cdir_size, MZ_FALSE)) ||
3838
12.5k
                (!mz_zip_array_resize(pZip, &pZip->m_pState->m_central_dir_offsets, pZip->m_total_files, MZ_FALSE)))
3839
0
                return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
3840
3841
12.5k
            if (sort_central_dir)
3842
4.25k
            {
3843
4.25k
                if (!mz_zip_array_resize(pZip, &pZip->m_pState->m_sorted_central_dir_offsets, pZip->m_total_files, MZ_FALSE))
3844
0
                    return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
3845
4.25k
            }
3846
3847
12.5k
            if (pZip->m_pRead(pZip->m_pIO_opaque, cdir_ofs, pZip->m_pState->m_central_dir.m_p, cdir_size) != cdir_size)
3848
34
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
3849
3850
            /* Now create an index into the central directory file records, do some basic sanity checking on each record */
3851
12.4k
            p = (const mz_uint8 *)pZip->m_pState->m_central_dir.m_p;
3852
65.5k
            for (n = cdir_size, i = 0; i < pZip->m_total_files; ++i)
3853
53.5k
            {
3854
53.5k
                mz_uint total_header_size, disk_index, bit_flags, filename_size, ext_data_size;
3855
53.5k
                mz_uint64 comp_size, decomp_size, local_header_ofs;
3856
3857
53.5k
                if ((n < MZ_ZIP_CENTRAL_DIR_HEADER_SIZE) || (MZ_READ_LE32(p) != MZ_ZIP_CENTRAL_DIR_HEADER_SIG))
3858
75
                    return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
3859
3860
53.4k
                MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, i) = (mz_uint32)(p - (const mz_uint8 *)pZip->m_pState->m_central_dir.m_p);
3861
3862
53.4k
                if (sort_central_dir)
3863
38.7k
                    MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_sorted_central_dir_offsets, mz_uint32, i) = i;
3864
3865
53.4k
                comp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS);
3866
53.4k
                decomp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS);
3867
53.4k
                local_header_ofs = MZ_READ_LE32(p + MZ_ZIP_CDH_LOCAL_HEADER_OFS);
3868
53.4k
                filename_size = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS);
3869
53.4k
                ext_data_size = MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS);
3870
3871
53.4k
                if ((!pZip->m_pState->m_zip64_has_extended_info_fields) &&
3872
46.0k
                    (ext_data_size) &&
3873
4.51k
                    (MZ_MAX(MZ_MAX(comp_size, decomp_size), local_header_ofs) == MZ_UINT32_MAX))
3874
1.21k
                {
3875
                    /* Attempt to find zip64 extended information field in the entry's extra data */
3876
1.21k
                    mz_uint32 extra_size_remaining = ext_data_size;
3877
3878
1.21k
                    if (extra_size_remaining)
3879
1.21k
                    {
3880
1.21k
                        const mz_uint8 *pExtra_data;
3881
1.21k
                        void *buf = NULL;
3882
3883
1.21k
                        if (MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_size + ext_data_size > n)
3884
101
                        {
3885
101
                            buf = MZ_MALLOC(ext_data_size);
3886
101
                            if (buf == NULL)
3887
0
                                return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
3888
3889
101
                            if (pZip->m_pRead(pZip->m_pIO_opaque, cdir_ofs + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_size, buf, ext_data_size) != ext_data_size)
3890
42
                            {
3891
42
                                MZ_FREE(buf);
3892
42
                                return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
3893
42
                            }
3894
3895
59
                            pExtra_data = (mz_uint8 *)buf;
3896
59
                        }
3897
1.11k
                        else
3898
1.11k
                        {
3899
1.11k
                            pExtra_data = p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_size;
3900
1.11k
                        }
3901
3902
1.17k
                        do
3903
3.64k
                        {
3904
3.64k
                            mz_uint32 field_id;
3905
3.64k
                            mz_uint32 field_data_size;
3906
3907
3.64k
                            if (extra_size_remaining < (sizeof(mz_uint16) * 2))
3908
16
                            {
3909
16
                                MZ_FREE(buf);
3910
16
                                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
3911
16
                            }
3912
3913
3.62k
                            field_id = MZ_READ_LE16(pExtra_data);
3914
3.62k
                            field_data_size = MZ_READ_LE16(pExtra_data + sizeof(mz_uint16));
3915
3916
3.62k
                            if ((field_data_size + sizeof(mz_uint16) * 2) > extra_size_remaining)
3917
38
                            {
3918
38
                                MZ_FREE(buf);
3919
38
                                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
3920
38
                            }
3921
3922
3.59k
                            if (field_id == MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID)
3923
807
                            {
3924
                                /* Ok, the archive didn't have any zip64 headers but it uses a zip64 extended information field so mark it as zip64 anyway (this can occur with infozip's zip util when it reads compresses files from stdin). */
3925
807
                                pZip->m_pState->m_zip64 = MZ_TRUE;
3926
807
                                pZip->m_pState->m_zip64_has_extended_info_fields = MZ_TRUE;
3927
807
                                break;
3928
807
                            }
3929
3930
2.78k
                            pExtra_data += sizeof(mz_uint16) * 2 + field_data_size;
3931
2.78k
                            extra_size_remaining = extra_size_remaining - sizeof(mz_uint16) * 2 - field_data_size;
3932
2.78k
                        } while (extra_size_remaining);
3933
3934
1.12k
                        MZ_FREE(buf);
3935
1.12k
                    }
3936
1.21k
                }
3937
3938
                /* I've seen archives that aren't marked as zip64 that uses zip64 ext data, argh */
3939
53.3k
                if ((comp_size != MZ_UINT32_MAX) && (decomp_size != MZ_UINT32_MAX))
3940
31.0k
                {
3941
31.0k
                    if (((!MZ_READ_LE32(p + MZ_ZIP_CDH_METHOD_OFS)) && (decomp_size != comp_size)) || (decomp_size && !comp_size))
3942
64
                        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
3943
31.0k
                }
3944
3945
53.2k
                disk_index = MZ_READ_LE16(p + MZ_ZIP_CDH_DISK_START_OFS);
3946
53.2k
                if ((disk_index == MZ_UINT16_MAX) || ((disk_index != num_this_disk) && (disk_index != 1)))
3947
94
                    return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_MULTIDISK);
3948
3949
53.2k
                if (comp_size != MZ_UINT32_MAX)
3950
44.6k
                {
3951
44.6k
                    if (((mz_uint64)MZ_READ_LE32(p + MZ_ZIP_CDH_LOCAL_HEADER_OFS) + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + comp_size) > pZip->m_archive_size)
3952
82
                        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
3953
44.6k
                }
3954
3955
53.1k
                bit_flags = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS);
3956
53.1k
                if (bit_flags & MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_LOCAL_DIR_IS_MASKED)
3957
3
                    return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION);
3958
3959
53.1k
                if ((total_header_size = MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS) + MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS) + MZ_READ_LE16(p + MZ_ZIP_CDH_COMMENT_LEN_OFS)) > n)
3960
40
                    return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
3961
3962
53.0k
                n -= total_header_size;
3963
53.0k
                p += total_header_size;
3964
53.0k
            }
3965
12.4k
        }
3966
3967
12.0k
        if (sort_central_dir)
3968
3.78k
            mz_zip_reader_sort_central_dir_offsets_by_filename(pZip);
3969
3970
12.0k
        return MZ_TRUE;
3971
12.5k
    }
3972
3973
    void mz_zip_zero_struct(mz_zip_archive *pZip)
3974
17.0k
    {
3975
17.0k
        if (pZip)
3976
17.0k
            MZ_CLEAR_PTR(pZip);
3977
17.0k
    }
3978
3979
    static mz_bool mz_zip_reader_end_internal(mz_zip_archive *pZip, mz_bool set_last_error)
3980
10.9k
    {
3981
10.9k
        mz_bool status = MZ_TRUE;
3982
3983
10.9k
        if (!pZip)
3984
0
            return MZ_FALSE;
3985
3986
10.9k
        if ((!pZip->m_pState) || (!pZip->m_pAlloc) || (!pZip->m_pFree) || (pZip->m_zip_mode != MZ_ZIP_MODE_READING))
3987
0
        {
3988
0
            if (set_last_error)
3989
0
                pZip->m_last_error = MZ_ZIP_INVALID_PARAMETER;
3990
3991
0
            return MZ_FALSE;
3992
0
        }
3993
3994
10.9k
        if (pZip->m_pState)
3995
10.9k
        {
3996
10.9k
            mz_zip_internal_state *pState = pZip->m_pState;
3997
10.9k
            pZip->m_pState = NULL;
3998
3999
10.9k
            mz_zip_array_clear(pZip, &pState->m_central_dir);
4000
10.9k
            mz_zip_array_clear(pZip, &pState->m_central_dir_offsets);
4001
10.9k
            mz_zip_array_clear(pZip, &pState->m_sorted_central_dir_offsets);
4002
4003
10.9k
#ifndef MINIZ_NO_STDIO
4004
10.9k
            if (pState->m_pFile)
4005
5.80k
            {
4006
5.80k
                if (pZip->m_zip_type == MZ_ZIP_TYPE_FILE)
4007
5.80k
                {
4008
5.80k
                    if (MZ_FCLOSE(pState->m_pFile) == EOF)
4009
0
                    {
4010
0
                        if (set_last_error)
4011
0
                            pZip->m_last_error = MZ_ZIP_FILE_CLOSE_FAILED;
4012
0
                        status = MZ_FALSE;
4013
0
                    }
4014
5.80k
                }
4015
5.80k
                pState->m_pFile = NULL;
4016
5.80k
            }
4017
10.9k
#endif /* #ifndef MINIZ_NO_STDIO */
4018
4019
10.9k
            pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
4020
10.9k
        }
4021
10.9k
        pZip->m_zip_mode = MZ_ZIP_MODE_INVALID;
4022
4023
10.9k
        return status;
4024
10.9k
    }
4025
4026
    mz_bool mz_zip_reader_end(mz_zip_archive *pZip)
4027
3.78k
    {
4028
3.78k
        return mz_zip_reader_end_internal(pZip, MZ_TRUE);
4029
3.78k
    }
4030
    mz_bool mz_zip_reader_init(mz_zip_archive *pZip, mz_uint64 size, mz_uint flags)
4031
0
    {
4032
0
        if ((!pZip) || (!pZip->m_pRead))
4033
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
4034
4035
0
        if (!mz_zip_reader_init_internal(pZip, flags))
4036
0
            return MZ_FALSE;
4037
4038
0
        pZip->m_zip_type = MZ_ZIP_TYPE_USER;
4039
0
        pZip->m_archive_size = size;
4040
4041
0
        if (!mz_zip_reader_read_central_dir(pZip, flags))
4042
0
        {
4043
0
            mz_zip_reader_end_internal(pZip, MZ_FALSE);
4044
0
            return MZ_FALSE;
4045
0
        }
4046
4047
0
        return MZ_TRUE;
4048
0
    }
4049
4050
    static size_t mz_zip_mem_read_func(void *pOpaque, mz_uint64 file_ofs, void *pBuf, size_t n)
4051
64.0k
    {
4052
64.0k
        mz_zip_archive *pZip = (mz_zip_archive *)pOpaque;
4053
64.0k
        size_t s = (file_ofs >= pZip->m_archive_size) ? 0 : (size_t)MZ_MIN(pZip->m_archive_size - file_ofs, n);
4054
64.0k
        memcpy(pBuf, (const mz_uint8 *)pZip->m_pState->m_pMem + file_ofs, s);
4055
64.0k
        return s;
4056
64.0k
    }
4057
4058
    mz_bool mz_zip_reader_init_mem(mz_zip_archive *pZip, const void *pMem, size_t size, mz_uint flags)
4059
5.16k
    {
4060
5.16k
        if (!pMem)
4061
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
4062
4063
5.16k
        if (size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
4064
9
            return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
4065
4066
5.15k
        if (!mz_zip_reader_init_internal(pZip, flags))
4067
0
            return MZ_FALSE;
4068
4069
5.15k
        pZip->m_zip_type = MZ_ZIP_TYPE_MEMORY;
4070
5.15k
        pZip->m_archive_size = size;
4071
5.15k
        pZip->m_pRead = mz_zip_mem_read_func;
4072
5.15k
        pZip->m_pIO_opaque = pZip;
4073
5.15k
        pZip->m_pNeeds_keepalive = NULL;
4074
4075
#ifdef __cplusplus
4076
        pZip->m_pState->m_pMem = const_cast<void *>(pMem);
4077
#else
4078
5.15k
    pZip->m_pState->m_pMem = (void *)pMem;
4079
5.15k
#endif
4080
4081
5.15k
        pZip->m_pState->m_mem_size = size;
4082
4083
5.15k
        if (!mz_zip_reader_read_central_dir(pZip, flags))
4084
1.36k
        {
4085
1.36k
            mz_zip_reader_end_internal(pZip, MZ_FALSE);
4086
1.36k
            return MZ_FALSE;
4087
1.36k
        }
4088
4089
3.78k
        return MZ_TRUE;
4090
5.15k
    }
4091
4092
#ifndef MINIZ_NO_STDIO
4093
    static size_t mz_zip_file_read_func(void *pOpaque, mz_uint64 file_ofs, void *pBuf, size_t n)
4094
46.9k
    {
4095
46.9k
        mz_zip_archive *pZip = (mz_zip_archive *)pOpaque;
4096
46.9k
        mz_int64 cur_ofs = MZ_FTELL64(pZip->m_pState->m_pFile);
4097
4098
46.9k
        file_ofs += pZip->m_pState->m_file_archive_start_ofs;
4099
4100
46.9k
        if (((mz_int64)file_ofs < 0) || (((cur_ofs != (mz_int64)file_ofs)) && (MZ_FSEEK64(pZip->m_pState->m_pFile, (mz_int64)file_ofs, SEEK_SET))))
4101
0
            return 0;
4102
4103
46.9k
        return MZ_FREAD(pBuf, 1, n, pZip->m_pState->m_pFile);
4104
46.9k
    }
4105
4106
    mz_bool mz_zip_reader_init_file(mz_zip_archive *pZip, const char *pFilename, mz_uint32 flags)
4107
0
    {
4108
0
        return mz_zip_reader_init_file_v2(pZip, pFilename, flags, 0, 0);
4109
0
    }
4110
4111
    mz_bool mz_zip_reader_init_file_v2(mz_zip_archive *pZip, const char *pFilename, mz_uint flags, mz_uint64 file_start_ofs, mz_uint64 archive_size)
4112
8.64k
    {
4113
8.64k
        mz_uint64 file_size;
4114
8.64k
        MZ_FILE *pFile;
4115
4116
8.64k
        if ((!pZip) || (!pFilename) || ((archive_size) && (archive_size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)))
4117
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
4118
4119
8.64k
        pFile = MZ_FOPEN(pFilename, (flags & MZ_ZIP_FLAG_READ_ALLOW_WRITING ) ? "r+b" : "rb");
4120
8.64k
        if (!pFile)
4121
203
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED);
4122
4123
8.44k
        file_size = archive_size;
4124
8.44k
        if (!file_size)
4125
8.44k
        {
4126
8.44k
            if (MZ_FSEEK64(pFile, 0, SEEK_END))
4127
0
            {
4128
0
                MZ_FCLOSE(pFile);
4129
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_SEEK_FAILED);
4130
0
            }
4131
4132
8.44k
            file_size = MZ_FTELL64(pFile);
4133
8.44k
        }
4134
4135
        /* TODO: Better sanity check archive_size and the # of actual remaining bytes */
4136
4137
8.44k
        if (file_size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
4138
0
        {
4139
0
            MZ_FCLOSE(pFile);
4140
0
            return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
4141
0
        }
4142
4143
8.44k
        if (!mz_zip_reader_init_internal(pZip, flags))
4144
0
        {
4145
0
            MZ_FCLOSE(pFile);
4146
0
            return MZ_FALSE;
4147
0
        }
4148
4149
8.44k
        pZip->m_zip_type = MZ_ZIP_TYPE_FILE;
4150
8.44k
        pZip->m_pRead = mz_zip_file_read_func;
4151
8.44k
        pZip->m_pIO_opaque = pZip;
4152
8.44k
        pZip->m_pState->m_pFile = pFile;
4153
8.44k
        pZip->m_archive_size = file_size;
4154
8.44k
        pZip->m_pState->m_file_archive_start_ofs = file_start_ofs;
4155
4156
8.44k
        if (!mz_zip_reader_read_central_dir(pZip, flags))
4157
193
        {
4158
193
            mz_zip_reader_end_internal(pZip, MZ_FALSE);
4159
193
            return MZ_FALSE;
4160
193
        }
4161
4162
8.25k
        return MZ_TRUE;
4163
8.44k
    }
4164
4165
    mz_bool mz_zip_reader_init_cfile(mz_zip_archive *pZip, MZ_FILE *pFile, mz_uint64 archive_size, mz_uint flags)
4166
0
    {
4167
0
        mz_uint64 cur_file_ofs;
4168
4169
0
        if ((!pZip) || (!pFile))
4170
0
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED);
4171
4172
0
        cur_file_ofs = MZ_FTELL64(pFile);
4173
4174
0
        if (!archive_size)
4175
0
        {
4176
0
            if (MZ_FSEEK64(pFile, 0, SEEK_END))
4177
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_SEEK_FAILED);
4178
4179
0
            archive_size = MZ_FTELL64(pFile) - cur_file_ofs;
4180
4181
0
            if (archive_size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
4182
0
                return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
4183
0
        }
4184
4185
0
        if (!mz_zip_reader_init_internal(pZip, flags))
4186
0
            return MZ_FALSE;
4187
4188
0
        pZip->m_zip_type = MZ_ZIP_TYPE_CFILE;
4189
0
        pZip->m_pRead = mz_zip_file_read_func;
4190
4191
0
        pZip->m_pIO_opaque = pZip;
4192
0
        pZip->m_pState->m_pFile = pFile;
4193
0
        pZip->m_archive_size = archive_size;
4194
0
        pZip->m_pState->m_file_archive_start_ofs = cur_file_ofs;
4195
4196
0
        if (!mz_zip_reader_read_central_dir(pZip, flags))
4197
0
        {
4198
0
            mz_zip_reader_end_internal(pZip, MZ_FALSE);
4199
0
            return MZ_FALSE;
4200
0
        }
4201
4202
0
        return MZ_TRUE;
4203
0
    }
4204
4205
#endif /* #ifndef MINIZ_NO_STDIO */
4206
4207
    static MZ_FORCEINLINE const mz_uint8 *mz_zip_get_cdh(mz_zip_archive *pZip, mz_uint file_index)
4208
501k
    {
4209
501k
        if ((!pZip) || (!pZip->m_pState) || (file_index >= pZip->m_total_files))
4210
0
            return NULL;
4211
501k
        return &MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, file_index));
4212
501k
    }
4213
4214
    mz_bool mz_zip_reader_is_file_encrypted(mz_zip_archive *pZip, mz_uint file_index)
4215
134k
    {
4216
134k
        mz_uint m_bit_flag;
4217
134k
        const mz_uint8 *p = mz_zip_get_cdh(pZip, file_index);
4218
134k
        if (!p)
4219
0
        {
4220
0
            mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
4221
0
            return MZ_FALSE;
4222
0
        }
4223
4224
134k
        m_bit_flag = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS);
4225
134k
        return (m_bit_flag & (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION)) != 0;
4226
134k
    }
4227
4228
    mz_bool mz_zip_reader_is_file_supported(mz_zip_archive *pZip, mz_uint file_index)
4229
99.4k
    {
4230
99.4k
        mz_uint bit_flag;
4231
99.4k
        mz_uint method;
4232
4233
99.4k
        const mz_uint8 *p = mz_zip_get_cdh(pZip, file_index);
4234
99.4k
        if (!p)
4235
0
        {
4236
0
            mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
4237
0
            return MZ_FALSE;
4238
0
        }
4239
4240
99.4k
        method = MZ_READ_LE16(p + MZ_ZIP_CDH_METHOD_OFS);
4241
99.4k
        bit_flag = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS);
4242
4243
99.4k
        if ((method != 0) && (method != MZ_DEFLATED))
4244
10.1k
        {
4245
10.1k
            mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD);
4246
10.1k
            return MZ_FALSE;
4247
10.1k
        }
4248
4249
89.2k
        if (bit_flag & (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION))
4250
2.53k
        {
4251
2.53k
            mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION);
4252
2.53k
            return MZ_FALSE;
4253
2.53k
        }
4254
4255
86.6k
        if (bit_flag & MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG)
4256
5.57k
        {
4257
5.57k
            mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_FEATURE);
4258
5.57k
            return MZ_FALSE;
4259
5.57k
        }
4260
4261
81.1k
        return MZ_TRUE;
4262
86.6k
    }
4263
4264
    mz_bool mz_zip_reader_is_file_a_directory(mz_zip_archive *pZip, mz_uint file_index)
4265
136k
    {
4266
136k
        mz_uint filename_len, attribute_mapping_id, external_attr;
4267
136k
        const mz_uint8 *p = mz_zip_get_cdh(pZip, file_index);
4268
136k
        if (!p)
4269
0
        {
4270
0
            mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
4271
0
            return MZ_FALSE;
4272
0
        }
4273
4274
136k
        filename_len = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS);
4275
136k
        if (filename_len)
4276
37.5k
        {
4277
37.5k
            if (*(p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_len - 1) == '/')
4278
823
                return MZ_TRUE;
4279
37.5k
        }
4280
4281
        /* Bugfix: This code was also checking if the internal attribute was non-zero, which wasn't correct. */
4282
        /* Most/all zip writers (hopefully) set DOS file/directory attributes in the low 16-bits, so check for the DOS directory flag and ignore the source OS ID in the created by field. */
4283
        /* FIXME: Remove this check? Is it necessary - we already check the filename. */
4284
135k
        attribute_mapping_id = MZ_READ_LE16(p + MZ_ZIP_CDH_VERSION_MADE_BY_OFS) >> 8;
4285
135k
        (void)attribute_mapping_id;
4286
4287
135k
        external_attr = MZ_READ_LE32(p + MZ_ZIP_CDH_EXTERNAL_ATTR_OFS);
4288
135k
        if ((external_attr & MZ_ZIP_DOS_DIR_ATTRIBUTE_BITFLAG) != 0)
4289
3.36k
        {
4290
3.36k
            return MZ_TRUE;
4291
3.36k
        }
4292
4293
132k
        return MZ_FALSE;
4294
135k
    }
4295
4296
    static mz_bool mz_zip_file_stat_internal(mz_zip_archive *pZip, mz_uint file_index, const mz_uint8 *pCentral_dir_header, mz_zip_archive_file_stat *pStat, mz_bool *pFound_zip64_extra_data)
4297
99.4k
    {
4298
99.4k
        mz_uint n;
4299
99.4k
        const mz_uint8 *p = pCentral_dir_header;
4300
4301
99.4k
        if (pFound_zip64_extra_data)
4302
34.6k
            *pFound_zip64_extra_data = MZ_FALSE;
4303
4304
99.4k
        if ((!p) || (!pStat))
4305
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
4306
4307
        /* Extract fields from the central directory record. */
4308
99.4k
        pStat->m_file_index = file_index;
4309
99.4k
        pStat->m_central_dir_ofs = MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, file_index);
4310
99.4k
        pStat->m_version_made_by = MZ_READ_LE16(p + MZ_ZIP_CDH_VERSION_MADE_BY_OFS);
4311
99.4k
        pStat->m_version_needed = MZ_READ_LE16(p + MZ_ZIP_CDH_VERSION_NEEDED_OFS);
4312
99.4k
        pStat->m_bit_flag = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS);
4313
99.4k
        pStat->m_method = MZ_READ_LE16(p + MZ_ZIP_CDH_METHOD_OFS);
4314
99.4k
#ifndef MINIZ_NO_TIME
4315
99.4k
        pStat->m_time = mz_zip_dos_to_time_t(MZ_READ_LE16(p + MZ_ZIP_CDH_FILE_TIME_OFS), MZ_READ_LE16(p + MZ_ZIP_CDH_FILE_DATE_OFS));
4316
99.4k
#endif
4317
99.4k
        pStat->m_crc32 = MZ_READ_LE32(p + MZ_ZIP_CDH_CRC32_OFS);
4318
99.4k
        pStat->m_comp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS);
4319
99.4k
        pStat->m_uncomp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS);
4320
99.4k
        pStat->m_internal_attr = MZ_READ_LE16(p + MZ_ZIP_CDH_INTERNAL_ATTR_OFS);
4321
99.4k
        pStat->m_external_attr = MZ_READ_LE32(p + MZ_ZIP_CDH_EXTERNAL_ATTR_OFS);
4322
99.4k
        pStat->m_local_header_ofs = MZ_READ_LE32(p + MZ_ZIP_CDH_LOCAL_HEADER_OFS);
4323
4324
        /* Copy as much of the filename and comment as possible. */
4325
99.4k
        n = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS);
4326
99.4k
        n = MZ_MIN(n, MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE - 1);
4327
99.4k
        memcpy(pStat->m_filename, p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, n);
4328
99.4k
        pStat->m_filename[n] = '\0';
4329
4330
99.4k
        n = MZ_READ_LE16(p + MZ_ZIP_CDH_COMMENT_LEN_OFS);
4331
99.4k
        n = MZ_MIN(n, MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE - 1);
4332
99.4k
        pStat->m_comment_size = n;
4333
99.4k
        memcpy(pStat->m_comment, p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS) + MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS), n);
4334
99.4k
        pStat->m_comment[n] = '\0';
4335
4336
        /* Set some flags for convienance */
4337
99.4k
        pStat->m_is_directory = mz_zip_reader_is_file_a_directory(pZip, file_index);
4338
99.4k
        pStat->m_is_encrypted = mz_zip_reader_is_file_encrypted(pZip, file_index);
4339
99.4k
        pStat->m_is_supported = mz_zip_reader_is_file_supported(pZip, file_index);
4340
4341
        /* See if we need to read any zip64 extended information fields. */
4342
        /* Confusingly, these zip64 fields can be present even on non-zip64 archives (Debian zip on a huge files from stdin piped to stdout creates them). */
4343
99.4k
        if (MZ_MAX(MZ_MAX(pStat->m_comp_size, pStat->m_uncomp_size), pStat->m_local_header_ofs) == MZ_UINT32_MAX)
4344
47.4k
        {
4345
            /* Attempt to find zip64 extended information field in the entry's extra data */
4346
47.4k
            mz_uint32 extra_size_remaining = MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS);
4347
4348
47.4k
            if (extra_size_remaining)
4349
7.20k
            {
4350
7.20k
                const mz_uint8 *pExtra_data = p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS);
4351
4352
7.20k
                do
4353
11.4k
                {
4354
11.4k
                    mz_uint32 field_id;
4355
11.4k
                    mz_uint32 field_data_size;
4356
4357
11.4k
                    if (extra_size_remaining < (sizeof(mz_uint16) * 2))
4358
319
                        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
4359
4360
11.1k
                    field_id = MZ_READ_LE16(pExtra_data);
4361
11.1k
                    field_data_size = MZ_READ_LE16(pExtra_data + sizeof(mz_uint16));
4362
4363
11.1k
                    if ((field_data_size + sizeof(mz_uint16) * 2) > extra_size_remaining)
4364
782
                        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
4365
4366
10.3k
                    if (field_id == MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID)
4367
4.57k
                    {
4368
4.57k
                        const mz_uint8 *pField_data = pExtra_data + sizeof(mz_uint16) * 2;
4369
4.57k
                        mz_uint32 field_data_remaining = field_data_size;
4370
4371
4.57k
                        if (pFound_zip64_extra_data)
4372
1.46k
                            *pFound_zip64_extra_data = MZ_TRUE;
4373
4374
4.57k
                        if (pStat->m_uncomp_size == MZ_UINT32_MAX)
4375
2.07k
                        {
4376
2.07k
                            if (field_data_remaining < sizeof(mz_uint64))
4377
1.17k
                                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
4378
4379
905
                            pStat->m_uncomp_size = MZ_READ_LE64(pField_data);
4380
905
                            pField_data += sizeof(mz_uint64);
4381
905
                            field_data_remaining -= sizeof(mz_uint64);
4382
905
                        }
4383
4384
3.40k
                        if (pStat->m_comp_size == MZ_UINT32_MAX)
4385
2.54k
                        {
4386
2.54k
                            if (field_data_remaining < sizeof(mz_uint64))
4387
803
                                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
4388
4389
1.74k
                            pStat->m_comp_size = MZ_READ_LE64(pField_data);
4390
1.74k
                            pField_data += sizeof(mz_uint64);
4391
1.74k
                            field_data_remaining -= sizeof(mz_uint64);
4392
1.74k
                        }
4393
4394
2.59k
                        if (pStat->m_local_header_ofs == MZ_UINT32_MAX)
4395
614
                        {
4396
614
                            if (field_data_remaining < sizeof(mz_uint64))
4397
216
                                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
4398
4399
398
                            pStat->m_local_header_ofs = MZ_READ_LE64(pField_data);
4400
398
                            pField_data += sizeof(mz_uint64);
4401
398
                            field_data_remaining -= sizeof(mz_uint64);
4402
398
                        }
4403
4404
2.38k
                        break;
4405
2.59k
                    }
4406
4407
5.77k
                    pExtra_data += sizeof(mz_uint16) * 2 + field_data_size;
4408
5.77k
                    extra_size_remaining = extra_size_remaining - sizeof(mz_uint16) * 2 - field_data_size;
4409
5.77k
                } while (extra_size_remaining);
4410
7.20k
            }
4411
47.4k
        }
4412
4413
96.1k
        return MZ_TRUE;
4414
99.4k
    }
4415
4416
    static MZ_FORCEINLINE mz_bool mz_zip_string_equal(const char *pA, const char *pB, mz_uint len, mz_uint flags)
4417
5.90k
    {
4418
5.90k
        mz_uint i;
4419
5.90k
        if (flags & MZ_ZIP_FLAG_CASE_SENSITIVE)
4420
1.57k
            return 0 == memcmp(pA, pB, len);
4421
725k
        for (i = 0; i < len; ++i)
4422
721k
            if (MZ_TOLOWER(pA[i]) != MZ_TOLOWER(pB[i]))
4423
390
                return MZ_FALSE;
4424
3.94k
        return MZ_TRUE;
4425
4.33k
    }
4426
4427
    static MZ_FORCEINLINE int mz_zip_filename_compare(const mz_zip_array *pCentral_dir_array, const mz_zip_array *pCentral_dir_offsets, mz_uint l_index, const char *pR, mz_uint r_len)
4428
43.2k
    {
4429
43.2k
        const mz_uint8 *pL = &MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_array, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets, mz_uint32, l_index)), *pE;
4430
43.2k
        mz_uint l_len = MZ_READ_LE16(pL + MZ_ZIP_CDH_FILENAME_LEN_OFS);
4431
43.2k
        mz_uint8 l = 0, r = 0;
4432
43.2k
        pL += MZ_ZIP_CENTRAL_DIR_HEADER_SIZE;
4433
43.2k
        pE = pL + MZ_MIN(l_len, r_len);
4434
83.6k
        while (pL < pE)
4435
49.6k
        {
4436
49.6k
            if ((l = MZ_TOLOWER(*pL)) != (r = MZ_TOLOWER(*pR)))
4437
9.27k
                break;
4438
40.3k
            pL++;
4439
40.3k
            pR++;
4440
40.3k
        }
4441
43.2k
        return (pL == pE) ? (int)(l_len - r_len) : (l - r);
4442
43.2k
    }
4443
4444
    static mz_bool mz_zip_locate_file_binary_search(mz_zip_archive *pZip, const char *pFilename, mz_uint32 *pIndex)
4445
28.4k
    {
4446
28.4k
        mz_zip_internal_state *pState = pZip->m_pState;
4447
28.4k
        const mz_zip_array *pCentral_dir_offsets = &pState->m_central_dir_offsets;
4448
28.4k
        const mz_zip_array *pCentral_dir = &pState->m_central_dir;
4449
28.4k
        mz_uint32 *pIndices = &MZ_ZIP_ARRAY_ELEMENT(&pState->m_sorted_central_dir_offsets, mz_uint32, 0);
4450
28.4k
        const mz_uint32 size = pZip->m_total_files;
4451
28.4k
        const mz_uint filename_len = (mz_uint)strlen(pFilename);
4452
4453
28.4k
        if (pIndex)
4454
28.4k
            *pIndex = 0;
4455
4456
28.4k
        if (size)
4457
28.4k
        {
4458
            /* yes I could use uint32_t's, but then we would have to add some special case checks in the loop, argh, and */
4459
            /* honestly the major expense here on 32-bit CPU's will still be the filename compare */
4460
28.4k
            mz_int64 l = 0, h = (mz_int64)size - 1;
4461
4462
44.3k
            while (l <= h)
4463
43.2k
            {
4464
43.2k
                mz_int64 m = l + ((h - l) >> 1);
4465
43.2k
                mz_uint32 file_index = pIndices[(mz_uint32)m];
4466
4467
43.2k
                int comp = mz_zip_filename_compare(pCentral_dir, pCentral_dir_offsets, file_index, pFilename, filename_len);
4468
43.2k
                if (!comp)
4469
27.3k
                {
4470
27.3k
                    if (pIndex)
4471
27.3k
                        *pIndex = file_index;
4472
27.3k
                    return MZ_TRUE;
4473
27.3k
                }
4474
15.9k
                else if (comp < 0)
4475
7.16k
                    l = m + 1;
4476
8.76k
                else
4477
8.76k
                    h = m - 1;
4478
43.2k
            }
4479
28.4k
        }
4480
4481
1.06k
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_NOT_FOUND);
4482
28.4k
    }
4483
4484
    int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char *pName, const char *pComment, mz_uint flags)
4485
0
    {
4486
0
        mz_uint32 index;
4487
0
        if (!mz_zip_reader_locate_file_v2(pZip, pName, pComment, flags, &index))
4488
0
            return -1;
4489
0
        else
4490
0
            return (int)index;
4491
0
    }
4492
4493
    mz_bool mz_zip_reader_locate_file_v2(mz_zip_archive *pZip, const char *pName, const char *pComment, mz_uint flags, mz_uint32 *pIndex)
4494
34.0k
    {
4495
34.0k
        mz_uint file_index;
4496
34.0k
        size_t name_len, comment_len;
4497
4498
34.0k
        if (pIndex)
4499
34.0k
            *pIndex = 0;
4500
4501
34.0k
        if ((!pZip) || (!pZip->m_pState) || (!pName))
4502
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
4503
4504
        /* See if we can use a binary search */
4505
34.0k
        if (((pZip->m_pState->m_init_flags & MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY) == 0) &&
4506
28.4k
            (pZip->m_zip_mode == MZ_ZIP_MODE_READING) &&
4507
28.4k
            ((flags & (MZ_ZIP_FLAG_IGNORE_PATH | MZ_ZIP_FLAG_CASE_SENSITIVE)) == 0) && (!pComment) && (pZip->m_pState->m_sorted_central_dir_offsets.m_size))
4508
28.4k
        {
4509
28.4k
            return mz_zip_locate_file_binary_search(pZip, pName, pIndex);
4510
28.4k
        }
4511
4512
        /* Locate the entry by scanning the entire central directory */
4513
5.57k
        name_len = strlen(pName);
4514
5.57k
        if (name_len > MZ_UINT16_MAX)
4515
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
4516
4517
5.57k
        comment_len = pComment ? strlen(pComment) : 0;
4518
5.57k
        if (comment_len > MZ_UINT16_MAX)
4519
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
4520
4521
8.82k
        for (file_index = 0; file_index < pZip->m_total_files; file_index++)
4522
8.48k
        {
4523
8.48k
            const mz_uint8 *pHeader = &MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, file_index));
4524
8.48k
            mz_uint filename_len = MZ_READ_LE16(pHeader + MZ_ZIP_CDH_FILENAME_LEN_OFS);
4525
8.48k
            const char *pFilename = (const char *)pHeader + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE;
4526
8.48k
            if (filename_len < name_len)
4527
1.24k
                continue;
4528
7.24k
            if (comment_len)
4529
0
            {
4530
0
                mz_uint file_extra_len = MZ_READ_LE16(pHeader + MZ_ZIP_CDH_EXTRA_LEN_OFS), file_comment_len = MZ_READ_LE16(pHeader + MZ_ZIP_CDH_COMMENT_LEN_OFS);
4531
0
                const char *pFile_comment = pFilename + filename_len + file_extra_len;
4532
0
                if ((file_comment_len != comment_len) || (!mz_zip_string_equal(pComment, pFile_comment, file_comment_len, flags)))
4533
0
                    continue;
4534
0
            }
4535
7.24k
            if ((flags & MZ_ZIP_FLAG_IGNORE_PATH) && (filename_len))
4536
1.04k
            {
4537
1.04k
                int ofs = filename_len - 1;
4538
1.04k
                do
4539
133k
                {
4540
133k
                    if ((pFilename[ofs] == '/') || (pFilename[ofs] == '\\') || (pFilename[ofs] == ':'))
4541
362
                        break;
4542
133k
                } while (--ofs >= 0);
4543
1.04k
                ofs++;
4544
1.04k
                pFilename += ofs;
4545
1.04k
                filename_len -= ofs;
4546
1.04k
            }
4547
7.24k
            if ((filename_len == name_len) && (mz_zip_string_equal(pName, pFilename, filename_len, flags)))
4548
5.23k
            {
4549
5.23k
                if (pIndex)
4550
5.23k
                    *pIndex = file_index;
4551
5.23k
                return MZ_TRUE;
4552
5.23k
            }
4553
7.24k
        }
4554
4555
341
        return mz_zip_set_error(pZip, MZ_ZIP_FILE_NOT_FOUND);
4556
5.57k
    }
4557
4558
    static mz_bool mz_zip_reader_extract_to_mem_no_alloc1(mz_zip_archive *pZip, mz_uint file_index, void *pBuf, size_t buf_size, mz_uint flags, void *pUser_read_buf, size_t user_read_buf_size, const mz_zip_archive_file_stat *st)
4559
32.5k
    {
4560
32.5k
        int status = TINFL_STATUS_DONE;
4561
32.5k
        mz_uint64 needed_size, cur_file_ofs, comp_remaining, out_buf_ofs = 0, read_buf_size, read_buf_ofs = 0, read_buf_avail;
4562
32.5k
        mz_zip_archive_file_stat file_stat;
4563
32.5k
        void *pRead_buf;
4564
32.5k
        mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)];
4565
32.5k
        mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32;
4566
32.5k
        tinfl_decompressor inflator;
4567
4568
32.5k
        if ((!pZip) || (!pZip->m_pState) || ((buf_size) && (!pBuf)) || ((user_read_buf_size) && (!pUser_read_buf)) || (!pZip->m_pRead))
4569
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
4570
4571
32.5k
        if (st)
4572
5.23k
        {
4573
5.23k
            file_stat = *st;
4574
5.23k
        }
4575
27.3k
        else if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat))
4576
967
            return MZ_FALSE;
4577
4578
        /* A directory or zero length file */
4579
31.6k
        if ((file_stat.m_is_directory) || (!file_stat.m_comp_size))
4580
5.87k
            return MZ_TRUE;
4581
4582
        /* Encryption and patch files are not supported. */
4583
25.7k
        if (file_stat.m_bit_flag & (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG))
4584
1.73k
            return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION);
4585
4586
        /* This function only supports decompressing stored and deflate. */
4587
24.0k
        if ((!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) && (file_stat.m_method != 0) && (file_stat.m_method != MZ_DEFLATED))
4588
681
            return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD);
4589
4590
        /* Ensure supplied output buffer is large enough. */
4591
23.3k
        needed_size = (flags & MZ_ZIP_FLAG_COMPRESSED_DATA) ? file_stat.m_comp_size : file_stat.m_uncomp_size;
4592
23.3k
        if (buf_size < needed_size)
4593
3.19k
            return mz_zip_set_error(pZip, MZ_ZIP_BUF_TOO_SMALL);
4594
4595
        /* Read and parse the local directory entry. */
4596
20.1k
        cur_file_ofs = file_stat.m_local_header_ofs;
4597
20.1k
        if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
4598
501
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
4599
4600
19.6k
        if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG)
4601
695
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
4602
4603
18.9k
        cur_file_ofs += (mz_uint64)(MZ_ZIP_LOCAL_DIR_HEADER_SIZE) + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS) + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS);
4604
18.9k
        if ((cur_file_ofs + file_stat.m_comp_size) > pZip->m_archive_size)
4605
502
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
4606
4607
18.4k
        if ((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!file_stat.m_method))
4608
3.91k
        {
4609
            /* The file is stored or the caller has requested the compressed data. */
4610
3.91k
            if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf, (size_t)needed_size) != needed_size)
4611
715
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
4612
4613
3.19k
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
4614
3.19k
            if ((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) == 0)
4615
2.83k
            {
4616
2.83k
                if (mz_crc32(MZ_CRC32_INIT, (const mz_uint8 *)pBuf, (size_t)file_stat.m_uncomp_size) != file_stat.m_crc32)
4617
1.31k
                    return mz_zip_set_error(pZip, MZ_ZIP_CRC_CHECK_FAILED);
4618
2.83k
            }
4619
1.88k
#endif
4620
4621
1.88k
            return MZ_TRUE;
4622
3.19k
        }
4623
4624
        /* Decompress the file either directly from memory or from a file input buffer. */
4625
14.5k
        tinfl_init(&inflator);
4626
4627
14.5k
        if (pZip->m_pState->m_pMem)
4628
10.9k
        {
4629
            /* Read directly from the archive in memory. */
4630
10.9k
            pRead_buf = (mz_uint8 *)pZip->m_pState->m_pMem + cur_file_ofs;
4631
10.9k
            read_buf_size = read_buf_avail = file_stat.m_comp_size;
4632
10.9k
            comp_remaining = 0;
4633
10.9k
        }
4634
3.55k
        else if (pUser_read_buf)
4635
0
        {
4636
            /* Use a user provided read buffer. */
4637
0
            if (!user_read_buf_size)
4638
0
                return MZ_FALSE;
4639
0
            pRead_buf = (mz_uint8 *)pUser_read_buf;
4640
0
            read_buf_size = user_read_buf_size;
4641
0
            read_buf_avail = 0;
4642
0
            comp_remaining = file_stat.m_comp_size;
4643
0
        }
4644
3.55k
        else
4645
3.55k
        {
4646
            /* Temporarily allocate a read buffer. */
4647
3.55k
            read_buf_size = MZ_MIN(file_stat.m_comp_size, (mz_uint64)MZ_ZIP_MAX_IO_BUF_SIZE);
4648
3.55k
            if (((sizeof(size_t) == sizeof(mz_uint32))) && (read_buf_size > 0x7FFFFFFF))
4649
0
                return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
4650
4651
3.55k
            if (NULL == (pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)read_buf_size)))
4652
0
                return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
4653
4654
3.55k
            read_buf_avail = 0;
4655
3.55k
            comp_remaining = file_stat.m_comp_size;
4656
3.55k
        }
4657
4658
14.5k
        do
4659
15.9k
        {
4660
            /* The size_t cast here should be OK because we've verified that the output buffer is >= file_stat.m_uncomp_size above */
4661
15.9k
            size_t in_buf_size, out_buf_size = (size_t)(file_stat.m_uncomp_size - out_buf_ofs);
4662
15.9k
            if ((!read_buf_avail) && (!pZip->m_pState->m_pMem))
4663
4.92k
            {
4664
4.92k
                read_buf_avail = MZ_MIN(read_buf_size, comp_remaining);
4665
4.92k
                if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail)
4666
0
                {
4667
0
                    status = TINFL_STATUS_FAILED;
4668
0
                    mz_zip_set_error(pZip, MZ_ZIP_DECOMPRESSION_FAILED);
4669
0
                    break;
4670
0
                }
4671
4.92k
                cur_file_ofs += read_buf_avail;
4672
4.92k
                comp_remaining -= read_buf_avail;
4673
4.92k
                read_buf_ofs = 0;
4674
4.92k
            }
4675
15.9k
            in_buf_size = (size_t)read_buf_avail;
4676
15.9k
            status = tinfl_decompress(&inflator, (mz_uint8 *)pRead_buf + read_buf_ofs, &in_buf_size, (mz_uint8 *)pBuf, (mz_uint8 *)pBuf + out_buf_ofs, &out_buf_size, TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF | (comp_remaining ? TINFL_FLAG_HAS_MORE_INPUT : 0));
4677
15.9k
            read_buf_avail -= in_buf_size;
4678
15.9k
            read_buf_ofs += in_buf_size;
4679
15.9k
            out_buf_ofs += out_buf_size;
4680
15.9k
        } while (status == TINFL_STATUS_NEEDS_MORE_INPUT);
4681
4682
14.5k
        if (status == TINFL_STATUS_DONE)
4683
4.03k
        {
4684
            /* Make sure the entire file was decompressed, and check its CRC. */
4685
4.03k
            if (out_buf_ofs != file_stat.m_uncomp_size)
4686
440
            {
4687
440
                mz_zip_set_error(pZip, MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE);
4688
440
                status = TINFL_STATUS_FAILED;
4689
440
            }
4690
3.59k
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
4691
3.59k
            else if (mz_crc32(MZ_CRC32_INIT, (const mz_uint8 *)pBuf, (size_t)file_stat.m_uncomp_size) != file_stat.m_crc32)
4692
383
            {
4693
383
                mz_zip_set_error(pZip, MZ_ZIP_CRC_CHECK_FAILED);
4694
383
                status = TINFL_STATUS_FAILED;
4695
383
            }
4696
4.03k
#endif
4697
4.03k
        }
4698
4699
14.5k
        if ((!pZip->m_pState->m_pMem) && (!pUser_read_buf))
4700
3.55k
            pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
4701
4702
14.5k
        return status == TINFL_STATUS_DONE;
4703
14.5k
    }
4704
4705
    mz_bool mz_zip_reader_extract_to_mem_no_alloc(mz_zip_archive *pZip, mz_uint file_index, void *pBuf, size_t buf_size, mz_uint flags, void *pUser_read_buf, size_t user_read_buf_size)
4706
0
    {
4707
0
        return mz_zip_reader_extract_to_mem_no_alloc1(pZip, file_index, pBuf, buf_size, flags, pUser_read_buf, user_read_buf_size, NULL);
4708
0
    }
4709
4710
    mz_bool mz_zip_reader_extract_file_to_mem_no_alloc(mz_zip_archive *pZip, const char *pFilename, void *pBuf, size_t buf_size, mz_uint flags, void *pUser_read_buf, size_t user_read_buf_size)
4711
28.4k
    {
4712
28.4k
        mz_uint32 file_index;
4713
28.4k
        if (!mz_zip_reader_locate_file_v2(pZip, pFilename, NULL, flags, &file_index))
4714
1.06k
            return MZ_FALSE;
4715
27.3k
        return mz_zip_reader_extract_to_mem_no_alloc1(pZip, file_index, pBuf, buf_size, flags, pUser_read_buf, user_read_buf_size, NULL);
4716
28.4k
    }
4717
4718
    mz_bool mz_zip_reader_extract_to_mem(mz_zip_archive *pZip, mz_uint file_index, void *pBuf, size_t buf_size, mz_uint flags)
4719
0
    {
4720
0
        return mz_zip_reader_extract_to_mem_no_alloc1(pZip, file_index, pBuf, buf_size, flags, NULL, 0, NULL);
4721
0
    }
4722
4723
    mz_bool mz_zip_reader_extract_file_to_mem(mz_zip_archive *pZip, const char *pFilename, void *pBuf, size_t buf_size, mz_uint flags)
4724
28.4k
    {
4725
28.4k
        return mz_zip_reader_extract_file_to_mem_no_alloc(pZip, pFilename, pBuf, buf_size, flags, NULL, 0);
4726
28.4k
    }
4727
4728
    void *mz_zip_reader_extract_to_heap(mz_zip_archive *pZip, mz_uint file_index, size_t *pSize, mz_uint flags)
4729
5.23k
    {
4730
5.23k
        mz_zip_archive_file_stat file_stat;
4731
5.23k
        mz_uint64 alloc_size;
4732
5.23k
        void *pBuf;
4733
4734
5.23k
        if (pSize)
4735
5.23k
            *pSize = 0;
4736
4737
5.23k
        if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat))
4738
0
            return NULL;
4739
4740
5.23k
        alloc_size = (flags & MZ_ZIP_FLAG_COMPRESSED_DATA) ? file_stat.m_comp_size : file_stat.m_uncomp_size;
4741
5.23k
        if (((sizeof(size_t) == sizeof(mz_uint32))) && (alloc_size > 0x7FFFFFFF))
4742
0
        {
4743
0
            mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
4744
0
            return NULL;
4745
0
        }
4746
4747
5.23k
        if (NULL == (pBuf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)alloc_size)))
4748
0
        {
4749
0
            mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
4750
0
            return NULL;
4751
0
        }
4752
4753
5.23k
        if (!mz_zip_reader_extract_to_mem_no_alloc1(pZip, file_index, pBuf, (size_t)alloc_size, flags, NULL, 0, &file_stat))
4754
541
        {
4755
541
            pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
4756
541
            return NULL;
4757
541
        }
4758
4759
4.69k
        if (pSize)
4760
4.69k
            *pSize = (size_t)alloc_size;
4761
4.69k
        return pBuf;
4762
5.23k
    }
4763
4764
    void *mz_zip_reader_extract_file_to_heap(mz_zip_archive *pZip, const char *pFilename, size_t *pSize, mz_uint flags)
4765
0
    {
4766
0
        mz_uint32 file_index;
4767
0
        if (!mz_zip_reader_locate_file_v2(pZip, pFilename, NULL, flags, &file_index))
4768
0
        {
4769
0
            if (pSize)
4770
0
                *pSize = 0;
4771
0
            return MZ_FALSE;
4772
0
        }
4773
0
        return mz_zip_reader_extract_to_heap(pZip, file_index, pSize, flags);
4774
0
    }
4775
4776
    mz_bool mz_zip_reader_extract_to_callback(mz_zip_archive *pZip, mz_uint file_index, mz_file_write_func pCallback, void *pOpaque, mz_uint flags)
4777
0
    {
4778
0
        int status = TINFL_STATUS_DONE;
4779
0
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
4780
0
        mz_uint file_crc32 = MZ_CRC32_INIT;
4781
0
#endif
4782
0
        mz_uint64 read_buf_size, read_buf_ofs = 0, read_buf_avail, comp_remaining, out_buf_ofs = 0, cur_file_ofs;
4783
0
        mz_zip_archive_file_stat file_stat;
4784
0
        void *pRead_buf = NULL;
4785
0
        void *pWrite_buf = NULL;
4786
0
        mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)];
4787
0
        mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32;
4788
4789
0
        if ((!pZip) || (!pZip->m_pState) || (!pCallback) || (!pZip->m_pRead))
4790
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
4791
4792
0
        if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat))
4793
0
            return MZ_FALSE;
4794
4795
        /* A directory or zero length file */
4796
0
        if ((file_stat.m_is_directory) || (!file_stat.m_comp_size))
4797
0
            return MZ_TRUE;
4798
4799
        /* Encryption and patch files are not supported. */
4800
0
        if (file_stat.m_bit_flag & (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG))
4801
0
            return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION);
4802
4803
        /* This function only supports decompressing stored and deflate. */
4804
0
        if ((!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) && (file_stat.m_method != 0) && (file_stat.m_method != MZ_DEFLATED))
4805
0
            return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD);
4806
4807
        /* Read and do some minimal validation of the local directory entry (this doesn't crack the zip64 stuff, which we already have from the central dir) */
4808
0
        cur_file_ofs = file_stat.m_local_header_ofs;
4809
0
        if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
4810
0
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
4811
4812
0
        if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG)
4813
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
4814
4815
0
        cur_file_ofs += (mz_uint64)(MZ_ZIP_LOCAL_DIR_HEADER_SIZE) + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS) + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS);
4816
0
        if ((cur_file_ofs + file_stat.m_comp_size) > pZip->m_archive_size)
4817
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
4818
4819
        /* Decompress the file either directly from memory or from a file input buffer. */
4820
0
        if (pZip->m_pState->m_pMem)
4821
0
        {
4822
0
            pRead_buf = (mz_uint8 *)pZip->m_pState->m_pMem + cur_file_ofs;
4823
0
            read_buf_size = read_buf_avail = file_stat.m_comp_size;
4824
0
            comp_remaining = 0;
4825
0
        }
4826
0
        else
4827
0
        {
4828
0
            read_buf_size = MZ_MIN(file_stat.m_comp_size, (mz_uint64)MZ_ZIP_MAX_IO_BUF_SIZE);
4829
0
            if (NULL == (pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)read_buf_size)))
4830
0
                return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
4831
4832
0
            read_buf_avail = 0;
4833
0
            comp_remaining = file_stat.m_comp_size;
4834
0
        }
4835
4836
0
        if ((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!file_stat.m_method))
4837
0
        {
4838
            /* The file is stored or the caller has requested the compressed data. */
4839
0
            if (pZip->m_pState->m_pMem)
4840
0
            {
4841
0
                if (((sizeof(size_t) == sizeof(mz_uint32))) && (file_stat.m_comp_size > MZ_UINT32_MAX))
4842
0
                    return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
4843
4844
0
                if (pCallback(pOpaque, out_buf_ofs, pRead_buf, (size_t)file_stat.m_comp_size) != file_stat.m_comp_size)
4845
0
                {
4846
0
                    mz_zip_set_error(pZip, MZ_ZIP_WRITE_CALLBACK_FAILED);
4847
0
                    status = TINFL_STATUS_FAILED;
4848
0
                }
4849
0
                else if (!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA))
4850
0
                {
4851
0
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
4852
0
                    file_crc32 = (mz_uint32)mz_crc32(file_crc32, (const mz_uint8 *)pRead_buf, (size_t)file_stat.m_comp_size);
4853
0
#endif
4854
0
                }
4855
4856
0
                cur_file_ofs += file_stat.m_comp_size;
4857
0
                out_buf_ofs += file_stat.m_comp_size;
4858
0
                comp_remaining = 0;
4859
0
            }
4860
0
            else
4861
0
            {
4862
0
                while (comp_remaining)
4863
0
                {
4864
0
                    read_buf_avail = MZ_MIN(read_buf_size, comp_remaining);
4865
0
                    if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail)
4866
0
                    {
4867
0
                        mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
4868
0
                        status = TINFL_STATUS_FAILED;
4869
0
                        break;
4870
0
                    }
4871
4872
0
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
4873
0
                    if (!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA))
4874
0
                    {
4875
0
                        file_crc32 = (mz_uint32)mz_crc32(file_crc32, (const mz_uint8 *)pRead_buf, (size_t)read_buf_avail);
4876
0
                    }
4877
0
#endif
4878
4879
0
                    if (pCallback(pOpaque, out_buf_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail)
4880
0
                    {
4881
0
                        mz_zip_set_error(pZip, MZ_ZIP_WRITE_CALLBACK_FAILED);
4882
0
                        status = TINFL_STATUS_FAILED;
4883
0
                        break;
4884
0
                    }
4885
4886
0
                    cur_file_ofs += read_buf_avail;
4887
0
                    out_buf_ofs += read_buf_avail;
4888
0
                    comp_remaining -= read_buf_avail;
4889
0
                }
4890
0
            }
4891
0
        }
4892
0
        else
4893
0
        {
4894
0
            tinfl_decompressor inflator;
4895
0
            tinfl_init(&inflator);
4896
4897
0
            if (NULL == (pWrite_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, TINFL_LZ_DICT_SIZE)))
4898
0
            {
4899
0
                mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
4900
0
                status = TINFL_STATUS_FAILED;
4901
0
            }
4902
0
            else
4903
0
            {
4904
0
                do
4905
0
                {
4906
0
                    mz_uint8 *pWrite_buf_cur = (mz_uint8 *)pWrite_buf + (out_buf_ofs & (TINFL_LZ_DICT_SIZE - 1));
4907
0
                    size_t in_buf_size, out_buf_size = TINFL_LZ_DICT_SIZE - (out_buf_ofs & (TINFL_LZ_DICT_SIZE - 1));
4908
0
                    if ((!read_buf_avail) && (!pZip->m_pState->m_pMem))
4909
0
                    {
4910
0
                        read_buf_avail = MZ_MIN(read_buf_size, comp_remaining);
4911
0
                        if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail)
4912
0
                        {
4913
0
                            mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
4914
0
                            status = TINFL_STATUS_FAILED;
4915
0
                            break;
4916
0
                        }
4917
0
                        cur_file_ofs += read_buf_avail;
4918
0
                        comp_remaining -= read_buf_avail;
4919
0
                        read_buf_ofs = 0;
4920
0
                    }
4921
4922
0
                    in_buf_size = (size_t)read_buf_avail;
4923
0
                    status = tinfl_decompress(&inflator, (const mz_uint8 *)pRead_buf + read_buf_ofs, &in_buf_size, (mz_uint8 *)pWrite_buf, pWrite_buf_cur, &out_buf_size, comp_remaining ? TINFL_FLAG_HAS_MORE_INPUT : 0);
4924
0
                    read_buf_avail -= in_buf_size;
4925
0
                    read_buf_ofs += in_buf_size;
4926
4927
0
                    if (out_buf_size)
4928
0
                    {
4929
0
                        if (pCallback(pOpaque, out_buf_ofs, pWrite_buf_cur, out_buf_size) != out_buf_size)
4930
0
                        {
4931
0
                            mz_zip_set_error(pZip, MZ_ZIP_WRITE_CALLBACK_FAILED);
4932
0
                            status = TINFL_STATUS_FAILED;
4933
0
                            break;
4934
0
                        }
4935
4936
0
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
4937
0
                        file_crc32 = (mz_uint32)mz_crc32(file_crc32, pWrite_buf_cur, out_buf_size);
4938
0
#endif
4939
0
                        if ((out_buf_ofs += out_buf_size) > file_stat.m_uncomp_size)
4940
0
                        {
4941
0
                            mz_zip_set_error(pZip, MZ_ZIP_DECOMPRESSION_FAILED);
4942
0
                            status = TINFL_STATUS_FAILED;
4943
0
                            break;
4944
0
                        }
4945
0
                    }
4946
0
                } while ((status == TINFL_STATUS_NEEDS_MORE_INPUT) || (status == TINFL_STATUS_HAS_MORE_OUTPUT));
4947
0
            }
4948
0
        }
4949
4950
0
        if ((status == TINFL_STATUS_DONE) && (!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)))
4951
0
        {
4952
            /* Make sure the entire file was decompressed, and check its CRC. */
4953
0
            if (out_buf_ofs != file_stat.m_uncomp_size)
4954
0
            {
4955
0
                mz_zip_set_error(pZip, MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE);
4956
0
                status = TINFL_STATUS_FAILED;
4957
0
            }
4958
0
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
4959
0
            else if (file_crc32 != file_stat.m_crc32)
4960
0
            {
4961
0
                mz_zip_set_error(pZip, MZ_ZIP_DECOMPRESSION_FAILED);
4962
0
                status = TINFL_STATUS_FAILED;
4963
0
            }
4964
0
#endif
4965
0
        }
4966
4967
0
        if (!pZip->m_pState->m_pMem)
4968
0
            pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
4969
4970
0
        if (pWrite_buf)
4971
0
            pZip->m_pFree(pZip->m_pAlloc_opaque, pWrite_buf);
4972
4973
0
        return status == TINFL_STATUS_DONE;
4974
0
    }
4975
4976
    mz_bool mz_zip_reader_extract_file_to_callback(mz_zip_archive *pZip, const char *pFilename, mz_file_write_func pCallback, void *pOpaque, mz_uint flags)
4977
0
    {
4978
0
        mz_uint32 file_index;
4979
0
        if (!mz_zip_reader_locate_file_v2(pZip, pFilename, NULL, flags, &file_index))
4980
0
            return MZ_FALSE;
4981
4982
0
        return mz_zip_reader_extract_to_callback(pZip, file_index, pCallback, pOpaque, flags);
4983
0
    }
4984
4985
    mz_zip_reader_extract_iter_state *mz_zip_reader_extract_iter_new(mz_zip_archive *pZip, mz_uint file_index, mz_uint flags)
4986
0
    {
4987
0
        mz_zip_reader_extract_iter_state *pState;
4988
0
        mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)];
4989
0
        mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32;
4990
4991
        /* Argument sanity check */
4992
0
        if ((!pZip) || (!pZip->m_pState))
4993
0
            return NULL;
4994
4995
        /* Allocate an iterator status structure */
4996
0
        pState = (mz_zip_reader_extract_iter_state *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(mz_zip_reader_extract_iter_state));
4997
0
        if (!pState)
4998
0
        {
4999
0
            mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
5000
0
            return NULL;
5001
0
        }
5002
5003
        /* Fetch file details */
5004
0
        if (!mz_zip_reader_file_stat(pZip, file_index, &pState->file_stat))
5005
0
        {
5006
0
            pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
5007
0
            return NULL;
5008
0
        }
5009
5010
        /* Encryption and patch files are not supported. */
5011
0
        if (pState->file_stat.m_bit_flag & (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG))
5012
0
        {
5013
0
            mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION);
5014
0
            pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
5015
0
            return NULL;
5016
0
        }
5017
5018
        /* This function only supports decompressing stored and deflate. */
5019
0
        if ((!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) && (pState->file_stat.m_method != 0) && (pState->file_stat.m_method != MZ_DEFLATED))
5020
0
        {
5021
0
            mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD);
5022
0
            pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
5023
0
            return NULL;
5024
0
        }
5025
5026
        /* Init state - save args */
5027
0
        pState->pZip = pZip;
5028
0
        pState->flags = flags;
5029
5030
        /* Init state - reset variables to defaults */
5031
0
        pState->status = TINFL_STATUS_DONE;
5032
0
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
5033
0
        pState->file_crc32 = MZ_CRC32_INIT;
5034
0
#endif
5035
0
        pState->read_buf_ofs = 0;
5036
0
        pState->out_buf_ofs = 0;
5037
0
        pState->pRead_buf = NULL;
5038
0
        pState->pWrite_buf = NULL;
5039
0
        pState->out_blk_remain = 0;
5040
5041
        /* Read and parse the local directory entry. */
5042
0
        pState->cur_file_ofs = pState->file_stat.m_local_header_ofs;
5043
0
        if (pZip->m_pRead(pZip->m_pIO_opaque, pState->cur_file_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
5044
0
        {
5045
0
            mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
5046
0
            pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
5047
0
            return NULL;
5048
0
        }
5049
5050
0
        if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG)
5051
0
        {
5052
0
            mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
5053
0
            pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
5054
0
            return NULL;
5055
0
        }
5056
5057
0
        pState->cur_file_ofs += (mz_uint64)(MZ_ZIP_LOCAL_DIR_HEADER_SIZE) + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS) + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS);
5058
0
        if ((pState->cur_file_ofs + pState->file_stat.m_comp_size) > pZip->m_archive_size)
5059
0
        {
5060
0
            mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
5061
0
            pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
5062
0
            return NULL;
5063
0
        }
5064
5065
        /* Decompress the file either directly from memory or from a file input buffer. */
5066
0
        if (pZip->m_pState->m_pMem)
5067
0
        {
5068
0
            pState->pRead_buf = (mz_uint8 *)pZip->m_pState->m_pMem + pState->cur_file_ofs;
5069
0
            pState->read_buf_size = pState->read_buf_avail = pState->file_stat.m_comp_size;
5070
0
            pState->comp_remaining = pState->file_stat.m_comp_size;
5071
0
        }
5072
0
        else
5073
0
        {
5074
0
            if (!((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!pState->file_stat.m_method)))
5075
0
            {
5076
                /* Decompression required, therefore intermediate read buffer required */
5077
0
                pState->read_buf_size = MZ_MIN(pState->file_stat.m_comp_size, (mz_uint64)MZ_ZIP_MAX_IO_BUF_SIZE);
5078
0
                if (NULL == (pState->pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)pState->read_buf_size)))
5079
0
                {
5080
0
                    mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
5081
0
                    pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
5082
0
                    return NULL;
5083
0
                }
5084
0
            }
5085
0
            else
5086
0
            {
5087
                /* Decompression not required - we will be reading directly into user buffer, no temp buf required */
5088
0
                pState->read_buf_size = 0;
5089
0
            }
5090
0
            pState->read_buf_avail = 0;
5091
0
            pState->comp_remaining = pState->file_stat.m_comp_size;
5092
0
        }
5093
5094
0
        if (!((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!pState->file_stat.m_method)))
5095
0
        {
5096
            /* Decompression required, init decompressor */
5097
0
            tinfl_init(&pState->inflator);
5098
5099
            /* Allocate write buffer */
5100
0
            if (NULL == (pState->pWrite_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, TINFL_LZ_DICT_SIZE)))
5101
0
            {
5102
0
                mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
5103
0
                if (pState->pRead_buf)
5104
0
                    pZip->m_pFree(pZip->m_pAlloc_opaque, pState->pRead_buf);
5105
0
                pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
5106
0
                return NULL;
5107
0
            }
5108
0
        }
5109
5110
0
        return pState;
5111
0
    }
5112
5113
    mz_zip_reader_extract_iter_state *mz_zip_reader_extract_file_iter_new(mz_zip_archive *pZip, const char *pFilename, mz_uint flags)
5114
0
    {
5115
0
        mz_uint32 file_index;
5116
5117
        /* Locate file index by name */
5118
0
        if (!mz_zip_reader_locate_file_v2(pZip, pFilename, NULL, flags, &file_index))
5119
0
            return NULL;
5120
5121
        /* Construct iterator */
5122
0
        return mz_zip_reader_extract_iter_new(pZip, file_index, flags);
5123
0
    }
5124
5125
    size_t mz_zip_reader_extract_iter_read(mz_zip_reader_extract_iter_state *pState, void *pvBuf, size_t buf_size)
5126
0
    {
5127
0
        size_t copied_to_caller = 0;
5128
5129
        /* Argument sanity check */
5130
0
        if ((!pState) || (!pState->pZip) || (!pState->pZip->m_pState) || (!pvBuf))
5131
0
            return 0;
5132
5133
0
        if ((pState->flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!pState->file_stat.m_method))
5134
0
        {
5135
            /* The file is stored or the caller has requested the compressed data, calc amount to return. */
5136
0
            copied_to_caller = (size_t)MZ_MIN(buf_size, pState->comp_remaining);
5137
5138
            /* Zip is in memory....or requires reading from a file? */
5139
0
            if (pState->pZip->m_pState->m_pMem)
5140
0
            {
5141
                /* Copy data to caller's buffer */
5142
0
                memcpy(pvBuf, pState->pRead_buf, copied_to_caller);
5143
0
                pState->pRead_buf = ((mz_uint8 *)pState->pRead_buf) + copied_to_caller;
5144
0
            }
5145
0
            else
5146
0
            {
5147
                /* Read directly into caller's buffer */
5148
0
                if (pState->pZip->m_pRead(pState->pZip->m_pIO_opaque, pState->cur_file_ofs, pvBuf, copied_to_caller) != copied_to_caller)
5149
0
                {
5150
                    /* Failed to read all that was asked for, flag failure and alert user */
5151
0
                    mz_zip_set_error(pState->pZip, MZ_ZIP_FILE_READ_FAILED);
5152
0
                    pState->status = TINFL_STATUS_FAILED;
5153
0
                    copied_to_caller = 0;
5154
0
                }
5155
0
            }
5156
5157
0
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
5158
            /* Compute CRC if not returning compressed data only */
5159
0
            if (!(pState->flags & MZ_ZIP_FLAG_COMPRESSED_DATA))
5160
0
                pState->file_crc32 = (mz_uint32)mz_crc32(pState->file_crc32, (const mz_uint8 *)pvBuf, copied_to_caller);
5161
0
#endif
5162
5163
            /* Advance offsets, dec counters */
5164
0
            pState->cur_file_ofs += copied_to_caller;
5165
0
            pState->out_buf_ofs += copied_to_caller;
5166
0
            pState->comp_remaining -= copied_to_caller;
5167
0
        }
5168
0
        else
5169
0
        {
5170
0
            do
5171
0
            {
5172
                /* Calc ptr to write buffer - given current output pos and block size */
5173
0
                mz_uint8 *pWrite_buf_cur = (mz_uint8 *)pState->pWrite_buf + (pState->out_buf_ofs & (TINFL_LZ_DICT_SIZE - 1));
5174
5175
                /* Calc max output size - given current output pos and block size */
5176
0
                size_t in_buf_size, out_buf_size = TINFL_LZ_DICT_SIZE - (pState->out_buf_ofs & (TINFL_LZ_DICT_SIZE - 1));
5177
5178
0
                if (!pState->out_blk_remain)
5179
0
                {
5180
                    /* Read more data from file if none available (and reading from file) */
5181
0
                    if ((!pState->read_buf_avail) && (!pState->pZip->m_pState->m_pMem))
5182
0
                    {
5183
                        /* Calc read size */
5184
0
                        pState->read_buf_avail = MZ_MIN(pState->read_buf_size, pState->comp_remaining);
5185
0
                        if (pState->pZip->m_pRead(pState->pZip->m_pIO_opaque, pState->cur_file_ofs, pState->pRead_buf, (size_t)pState->read_buf_avail) != pState->read_buf_avail)
5186
0
                        {
5187
0
                            mz_zip_set_error(pState->pZip, MZ_ZIP_FILE_READ_FAILED);
5188
0
                            pState->status = TINFL_STATUS_FAILED;
5189
0
                            break;
5190
0
                        }
5191
5192
                        /* Advance offsets, dec counters */
5193
0
                        pState->cur_file_ofs += pState->read_buf_avail;
5194
0
                        pState->comp_remaining -= pState->read_buf_avail;
5195
0
                        pState->read_buf_ofs = 0;
5196
0
                    }
5197
5198
                    /* Perform decompression */
5199
0
                    in_buf_size = (size_t)pState->read_buf_avail;
5200
0
                    pState->status = tinfl_decompress(&pState->inflator, (const mz_uint8 *)pState->pRead_buf + pState->read_buf_ofs, &in_buf_size, (mz_uint8 *)pState->pWrite_buf, pWrite_buf_cur, &out_buf_size, pState->comp_remaining ? TINFL_FLAG_HAS_MORE_INPUT : 0);
5201
0
                    pState->read_buf_avail -= in_buf_size;
5202
0
                    pState->read_buf_ofs += in_buf_size;
5203
5204
                    /* Update current output block size remaining */
5205
0
                    pState->out_blk_remain = out_buf_size;
5206
0
                }
5207
5208
0
                if (pState->out_blk_remain)
5209
0
                {
5210
                    /* Calc amount to return. */
5211
0
                    size_t to_copy = MZ_MIN((buf_size - copied_to_caller), pState->out_blk_remain);
5212
5213
                    /* Copy data to caller's buffer */
5214
0
                    memcpy((mz_uint8 *)pvBuf + copied_to_caller, pWrite_buf_cur, to_copy);
5215
5216
0
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
5217
                    /* Perform CRC */
5218
0
                    pState->file_crc32 = (mz_uint32)mz_crc32(pState->file_crc32, pWrite_buf_cur, to_copy);
5219
0
#endif
5220
5221
                    /* Decrement data consumed from block */
5222
0
                    pState->out_blk_remain -= to_copy;
5223
5224
                    /* Inc output offset, while performing sanity check */
5225
0
                    if ((pState->out_buf_ofs += to_copy) > pState->file_stat.m_uncomp_size)
5226
0
                    {
5227
0
                        mz_zip_set_error(pState->pZip, MZ_ZIP_DECOMPRESSION_FAILED);
5228
0
                        pState->status = TINFL_STATUS_FAILED;
5229
0
                        break;
5230
0
                    }
5231
5232
                    /* Increment counter of data copied to caller */
5233
0
                    copied_to_caller += to_copy;
5234
0
                }
5235
0
            } while ((copied_to_caller < buf_size) && ((pState->status == TINFL_STATUS_NEEDS_MORE_INPUT) || (pState->status == TINFL_STATUS_HAS_MORE_OUTPUT)));
5236
0
        }
5237
5238
        /* Return how many bytes were copied into user buffer */
5239
0
        return copied_to_caller;
5240
0
    }
5241
5242
    mz_bool mz_zip_reader_extract_iter_free(mz_zip_reader_extract_iter_state *pState)
5243
0
    {
5244
0
        int status;
5245
5246
        /* Argument sanity check */
5247
0
        if ((!pState) || (!pState->pZip) || (!pState->pZip->m_pState))
5248
0
            return MZ_FALSE;
5249
5250
        /* Was decompression completed and requested? */
5251
0
        if ((pState->status == TINFL_STATUS_DONE) && (!(pState->flags & MZ_ZIP_FLAG_COMPRESSED_DATA)))
5252
0
        {
5253
            /* Make sure the entire file was decompressed, and check its CRC. */
5254
0
            if (pState->out_buf_ofs != pState->file_stat.m_uncomp_size)
5255
0
            {
5256
0
                mz_zip_set_error(pState->pZip, MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE);
5257
0
                pState->status = TINFL_STATUS_FAILED;
5258
0
            }
5259
0
#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
5260
0
            else if (pState->file_crc32 != pState->file_stat.m_crc32)
5261
0
            {
5262
0
                mz_zip_set_error(pState->pZip, MZ_ZIP_DECOMPRESSION_FAILED);
5263
0
                pState->status = TINFL_STATUS_FAILED;
5264
0
            }
5265
0
#endif
5266
0
        }
5267
5268
        /* Free buffers */
5269
0
        if (!pState->pZip->m_pState->m_pMem)
5270
0
            pState->pZip->m_pFree(pState->pZip->m_pAlloc_opaque, pState->pRead_buf);
5271
0
        if (pState->pWrite_buf)
5272
0
            pState->pZip->m_pFree(pState->pZip->m_pAlloc_opaque, pState->pWrite_buf);
5273
5274
        /* Save status */
5275
0
        status = pState->status;
5276
5277
        /* Free context */
5278
0
        pState->pZip->m_pFree(pState->pZip->m_pAlloc_opaque, pState);
5279
5280
0
        return status == TINFL_STATUS_DONE;
5281
0
    }
5282
5283
#ifndef MINIZ_NO_STDIO
5284
    static size_t mz_zip_file_write_callback(void *pOpaque, mz_uint64 ofs, const void *pBuf, size_t n)
5285
0
    {
5286
0
        (void)ofs;
5287
5288
0
        return MZ_FWRITE(pBuf, 1, n, (MZ_FILE *)pOpaque);
5289
0
    }
5290
5291
    mz_bool mz_zip_reader_extract_to_file(mz_zip_archive *pZip, mz_uint file_index, const char *pDst_filename, mz_uint flags)
5292
0
    {
5293
0
        mz_bool status;
5294
0
        mz_zip_archive_file_stat file_stat;
5295
0
        MZ_FILE *pFile;
5296
5297
0
        if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat))
5298
0
            return MZ_FALSE;
5299
5300
0
        if ((file_stat.m_is_directory) || (!file_stat.m_is_supported))
5301
0
            return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_FEATURE);
5302
5303
0
        pFile = MZ_FOPEN(pDst_filename, "wb");
5304
0
        if (!pFile)
5305
0
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED);
5306
5307
0
        status = mz_zip_reader_extract_to_callback(pZip, file_index, mz_zip_file_write_callback, pFile, flags);
5308
5309
0
        if (MZ_FCLOSE(pFile) == EOF)
5310
0
        {
5311
0
            if (status)
5312
0
                mz_zip_set_error(pZip, MZ_ZIP_FILE_CLOSE_FAILED);
5313
5314
0
            status = MZ_FALSE;
5315
0
        }
5316
5317
0
#if !defined(MINIZ_NO_TIME) && !defined(MINIZ_NO_STDIO)
5318
0
        if (status)
5319
0
            mz_zip_set_file_times(pDst_filename, file_stat.m_time, file_stat.m_time);
5320
0
#endif
5321
5322
0
        return status;
5323
0
    }
5324
5325
    mz_bool mz_zip_reader_extract_file_to_file(mz_zip_archive *pZip, const char *pArchive_filename, const char *pDst_filename, mz_uint flags)
5326
0
    {
5327
0
        mz_uint32 file_index;
5328
0
        if (!mz_zip_reader_locate_file_v2(pZip, pArchive_filename, NULL, flags, &file_index))
5329
0
            return MZ_FALSE;
5330
5331
0
        return mz_zip_reader_extract_to_file(pZip, file_index, pDst_filename, flags);
5332
0
    }
5333
5334
    mz_bool mz_zip_reader_extract_to_cfile(mz_zip_archive *pZip, mz_uint file_index, MZ_FILE *pFile, mz_uint flags)
5335
0
    {
5336
0
        mz_zip_archive_file_stat file_stat;
5337
5338
0
        if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat))
5339
0
            return MZ_FALSE;
5340
5341
0
        if ((file_stat.m_is_directory) || (!file_stat.m_is_supported))
5342
0
            return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_FEATURE);
5343
5344
0
        return mz_zip_reader_extract_to_callback(pZip, file_index, mz_zip_file_write_callback, pFile, flags);
5345
0
    }
5346
5347
    mz_bool mz_zip_reader_extract_file_to_cfile(mz_zip_archive *pZip, const char *pArchive_filename, MZ_FILE *pFile, mz_uint flags)
5348
0
    {
5349
0
        mz_uint32 file_index;
5350
0
        if (!mz_zip_reader_locate_file_v2(pZip, pArchive_filename, NULL, flags, &file_index))
5351
0
            return MZ_FALSE;
5352
5353
0
        return mz_zip_reader_extract_to_cfile(pZip, file_index, pFile, flags);
5354
0
    }
5355
#endif /* #ifndef MINIZ_NO_STDIO */
5356
5357
    static size_t mz_zip_compute_crc32_callback(void *pOpaque, mz_uint64 file_ofs, const void *pBuf, size_t n)
5358
0
    {
5359
0
        mz_uint32 *p = (mz_uint32 *)pOpaque;
5360
0
        (void)file_ofs;
5361
0
        *p = (mz_uint32)mz_crc32(*p, (const mz_uint8 *)pBuf, n);
5362
0
        return n;
5363
0
    }
5364
5365
    mz_bool mz_zip_validate_file(mz_zip_archive *pZip, mz_uint file_index, mz_uint flags)
5366
34.6k
    {
5367
34.6k
        mz_zip_archive_file_stat file_stat;
5368
34.6k
        mz_zip_internal_state *pState;
5369
34.6k
        const mz_uint8 *pCentral_dir_header;
5370
34.6k
        mz_bool found_zip64_ext_data_in_cdir = MZ_FALSE;
5371
34.6k
        mz_bool found_zip64_ext_data_in_ldir = MZ_FALSE;
5372
34.6k
        mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)];
5373
34.6k
        mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32;
5374
34.6k
        mz_uint64 local_header_ofs = 0;
5375
34.6k
        mz_uint32 local_header_filename_len, local_header_extra_len, local_header_crc32;
5376
34.6k
        mz_uint64 local_header_comp_size, local_header_uncomp_size;
5377
34.6k
        mz_uint32 uncomp_crc32 = MZ_CRC32_INIT;
5378
34.6k
        mz_bool has_data_descriptor;
5379
34.6k
        mz_uint32 local_header_bit_flags;
5380
5381
34.6k
        mz_zip_array file_data_array;
5382
34.6k
        mz_zip_array_init(&file_data_array, 1);
5383
5384
34.6k
        if ((!pZip) || (!pZip->m_pState) || (!pZip->m_pAlloc) || (!pZip->m_pFree) || (!pZip->m_pRead))
5385
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
5386
5387
34.6k
        if (file_index > pZip->m_total_files)
5388
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
5389
5390
34.6k
        pState = pZip->m_pState;
5391
5392
34.6k
        pCentral_dir_header = mz_zip_get_cdh(pZip, file_index);
5393
5394
34.6k
        if (!mz_zip_file_stat_internal(pZip, file_index, pCentral_dir_header, &file_stat, &found_zip64_ext_data_in_cdir))
5395
1.22k
            return MZ_FALSE;
5396
5397
        /* A directory or zero length file */
5398
33.3k
        if ((file_stat.m_is_directory) || (!file_stat.m_uncomp_size))
5399
2.16k
            return MZ_TRUE;
5400
5401
        /* Encryption and patch files are not supported. */
5402
31.2k
        if (file_stat.m_is_encrypted)
5403
2.11k
            return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION);
5404
5405
        /* This function only supports stored and deflate. */
5406
29.1k
        if ((file_stat.m_method != 0) && (file_stat.m_method != MZ_DEFLATED))
5407
3.41k
            return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD);
5408
5409
25.6k
        if (!file_stat.m_is_supported)
5410
1.86k
            return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_FEATURE);
5411
5412
        /* Read and parse the local directory entry. */
5413
23.8k
        local_header_ofs = file_stat.m_local_header_ofs;
5414
23.8k
        if (pZip->m_pRead(pZip->m_pIO_opaque, local_header_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
5415
1.56k
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
5416
5417
22.2k
        if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG)
5418
8.11k
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
5419
5420
14.1k
        local_header_filename_len = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS);
5421
14.1k
        local_header_extra_len = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS);
5422
14.1k
        local_header_comp_size = MZ_READ_LE32(pLocal_header + MZ_ZIP_LDH_COMPRESSED_SIZE_OFS);
5423
14.1k
        local_header_uncomp_size = MZ_READ_LE32(pLocal_header + MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS);
5424
14.1k
        local_header_crc32 = MZ_READ_LE32(pLocal_header + MZ_ZIP_LDH_CRC32_OFS);
5425
14.1k
        local_header_bit_flags = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_BIT_FLAG_OFS);
5426
14.1k
        has_data_descriptor = (local_header_bit_flags & 8) != 0;
5427
5428
14.1k
        if (local_header_filename_len != strlen(file_stat.m_filename))
5429
4.57k
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
5430
5431
9.56k
        if ((local_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + local_header_filename_len + local_header_extra_len + file_stat.m_comp_size) > pZip->m_archive_size)
5432
631
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
5433
5434
8.93k
        if (!mz_zip_array_resize(pZip, &file_data_array, MZ_MAX(local_header_filename_len, local_header_extra_len), MZ_FALSE))
5435
0
        {
5436
0
            mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
5437
0
            goto handle_failure;
5438
0
        }
5439
5440
8.93k
        if (local_header_filename_len)
5441
848
        {
5442
848
            if (pZip->m_pRead(pZip->m_pIO_opaque, local_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE, file_data_array.m_p, local_header_filename_len) != local_header_filename_len)
5443
7
            {
5444
7
                mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
5445
7
                goto handle_failure;
5446
7
            }
5447
5448
            /* I've seen 1 archive that had the same pathname, but used backslashes in the local dir and forward slashes in the central dir. Do we care about this? For now, this case will fail validation. */
5449
841
            if (memcmp(file_stat.m_filename, file_data_array.m_p, local_header_filename_len) != 0)
5450
600
            {
5451
600
                mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED);
5452
600
                goto handle_failure;
5453
600
            }
5454
841
        }
5455
5456
8.33k
        if ((local_header_extra_len) && ((local_header_comp_size == MZ_UINT32_MAX) || (local_header_uncomp_size == MZ_UINT32_MAX)))
5457
1.85k
        {
5458
1.85k
            mz_uint32 extra_size_remaining = local_header_extra_len;
5459
1.85k
            const mz_uint8 *pExtra_data = (const mz_uint8 *)file_data_array.m_p;
5460
5461
1.85k
            if (pZip->m_pRead(pZip->m_pIO_opaque, local_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + local_header_filename_len, file_data_array.m_p, local_header_extra_len) != local_header_extra_len)
5462
28
            {
5463
28
                mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
5464
28
                goto handle_failure;
5465
28
            }
5466
5467
1.82k
            do
5468
5.38k
            {
5469
5.38k
                mz_uint32 field_id, field_data_size, field_total_size;
5470
5471
5.38k
                if (extra_size_remaining < (sizeof(mz_uint16) * 2))
5472
355
                {
5473
355
                    mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
5474
355
                    goto handle_failure;
5475
355
                }
5476
5477
5.02k
                field_id = MZ_READ_LE16(pExtra_data);
5478
5.02k
                field_data_size = MZ_READ_LE16(pExtra_data + sizeof(mz_uint16));
5479
5.02k
                field_total_size = field_data_size + sizeof(mz_uint16) * 2;
5480
5481
5.02k
                if (field_total_size > extra_size_remaining)
5482
358
                {
5483
358
                    mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
5484
358
                    goto handle_failure;
5485
358
                }
5486
5487
4.66k
                if (field_id == MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID)
5488
760
                {
5489
760
                    const mz_uint8 *pSrc_field_data = pExtra_data + sizeof(mz_uint32);
5490
5491
760
                    if (field_data_size < sizeof(mz_uint64) * 2)
5492
201
                    {
5493
201
                        mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
5494
201
                        goto handle_failure;
5495
201
                    }
5496
5497
559
                    local_header_uncomp_size = MZ_READ_LE64(pSrc_field_data);
5498
559
                    local_header_comp_size = MZ_READ_LE64(pSrc_field_data + sizeof(mz_uint64));
5499
5500
559
                    found_zip64_ext_data_in_ldir = MZ_TRUE;
5501
559
                    break;
5502
760
                }
5503
5504
3.90k
                pExtra_data += field_total_size;
5505
3.90k
                extra_size_remaining -= field_total_size;
5506
3.90k
            } while (extra_size_remaining);
5507
1.82k
        }
5508
5509
        /* TODO: parse local header extra data when local_header_comp_size is 0xFFFFFFFF! (big_descriptor.zip) */
5510
        /* I've seen zips in the wild with the data descriptor bit set, but proper local header values and bogus data descriptors */
5511
7.38k
        if ((has_data_descriptor) && (!local_header_comp_size) && (!local_header_crc32))
5512
2.54k
        {
5513
2.54k
            mz_uint8 descriptor_buf[32];
5514
2.54k
            mz_bool has_id;
5515
2.54k
            const mz_uint8 *pSrc;
5516
2.54k
            mz_uint32 file_crc32;
5517
2.54k
            mz_uint64 comp_size = 0, uncomp_size = 0;
5518
5519
2.54k
            mz_uint32 num_descriptor_uint32s = ((pState->m_zip64) || (found_zip64_ext_data_in_ldir)) ? 6 : 4;
5520
5521
2.54k
            if (pZip->m_pRead(pZip->m_pIO_opaque, local_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + local_header_filename_len + local_header_extra_len + file_stat.m_comp_size, descriptor_buf, sizeof(mz_uint32) * num_descriptor_uint32s) != (sizeof(mz_uint32) * num_descriptor_uint32s))
5522
226
            {
5523
226
                mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
5524
226
                goto handle_failure;
5525
226
            }
5526
5527
2.31k
            has_id = (MZ_READ_LE32(descriptor_buf) == MZ_ZIP_DATA_DESCRIPTOR_ID);
5528
2.31k
            pSrc = has_id ? (descriptor_buf + sizeof(mz_uint32)) : descriptor_buf;
5529
5530
2.31k
            file_crc32 = MZ_READ_LE32(pSrc);
5531
5532
2.31k
            if ((pState->m_zip64) || (found_zip64_ext_data_in_ldir))
5533
518
            {
5534
518
                comp_size = MZ_READ_LE64(pSrc + sizeof(mz_uint32));
5535
518
                uncomp_size = MZ_READ_LE64(pSrc + sizeof(mz_uint32) + sizeof(mz_uint64));
5536
518
            }
5537
1.80k
            else
5538
1.80k
            {
5539
1.80k
                comp_size = MZ_READ_LE32(pSrc + sizeof(mz_uint32));
5540
1.80k
                uncomp_size = MZ_READ_LE32(pSrc + sizeof(mz_uint32) + sizeof(mz_uint32));
5541
1.80k
            }
5542
5543
2.31k
            if ((file_crc32 != file_stat.m_crc32) || (comp_size != file_stat.m_comp_size) || (uncomp_size != file_stat.m_uncomp_size))
5544
2.09k
            {
5545
2.09k
                mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED);
5546
2.09k
                goto handle_failure;
5547
2.09k
            }
5548
2.31k
        }
5549
4.84k
        else
5550
4.84k
        {
5551
4.84k
            if ((local_header_crc32 != file_stat.m_crc32) || (local_header_comp_size != file_stat.m_comp_size) || (local_header_uncomp_size != file_stat.m_uncomp_size))
5552
4.62k
            {
5553
4.62k
                mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED);
5554
4.62k
                goto handle_failure;
5555
4.62k
            }
5556
4.84k
        }
5557
5558
434
        mz_zip_array_clear(pZip, &file_data_array);
5559
5560
434
        if ((flags & MZ_ZIP_FLAG_VALIDATE_HEADERS_ONLY) == 0)
5561
0
        {
5562
0
            if (!mz_zip_reader_extract_to_callback(pZip, file_index, mz_zip_compute_crc32_callback, &uncomp_crc32, 0))
5563
0
                return MZ_FALSE;
5564
5565
            /* 1 more check to be sure, although the extract checks too. */
5566
0
            if (uncomp_crc32 != file_stat.m_crc32)
5567
0
            {
5568
0
                mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED);
5569
0
                return MZ_FALSE;
5570
0
            }
5571
0
        }
5572
5573
434
        return MZ_TRUE;
5574
5575
8.50k
    handle_failure:
5576
8.50k
        mz_zip_array_clear(pZip, &file_data_array);
5577
8.50k
        return MZ_FALSE;
5578
434
    }
5579
5580
    mz_bool mz_zip_validate_archive(mz_zip_archive *pZip, mz_uint flags)
5581
0
    {
5582
0
        mz_zip_internal_state *pState;
5583
0
        mz_uint32 i;
5584
5585
0
        if ((!pZip) || (!pZip->m_pState) || (!pZip->m_pAlloc) || (!pZip->m_pFree) || (!pZip->m_pRead))
5586
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
5587
5588
0
        pState = pZip->m_pState;
5589
5590
        /* Basic sanity checks */
5591
0
        if (!pState->m_zip64)
5592
0
        {
5593
0
            if (pZip->m_total_files > MZ_UINT16_MAX)
5594
0
                return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
5595
5596
0
            if (pZip->m_archive_size > MZ_UINT32_MAX)
5597
0
                return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
5598
0
        }
5599
0
        else
5600
0
        {
5601
0
            if (pState->m_central_dir.m_size >= MZ_UINT32_MAX)
5602
0
                return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
5603
0
        }
5604
5605
0
        for (i = 0; i < pZip->m_total_files; i++)
5606
0
        {
5607
0
            if (MZ_ZIP_FLAG_VALIDATE_LOCATE_FILE_FLAG & flags)
5608
0
            {
5609
0
                mz_uint32 found_index;
5610
0
                mz_zip_archive_file_stat stat;
5611
5612
0
                if (!mz_zip_reader_file_stat(pZip, i, &stat))
5613
0
                    return MZ_FALSE;
5614
5615
0
                if (!mz_zip_reader_locate_file_v2(pZip, stat.m_filename, NULL, 0, &found_index))
5616
0
                    return MZ_FALSE;
5617
5618
                /* This check can fail if there are duplicate filenames in the archive (which we don't check for when writing - that's up to the user) */
5619
0
                if (found_index != i)
5620
0
                    return mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED);
5621
0
            }
5622
5623
0
            if (!mz_zip_validate_file(pZip, i, flags))
5624
0
                return MZ_FALSE;
5625
0
        }
5626
5627
0
        return MZ_TRUE;
5628
0
    }
5629
5630
    mz_bool mz_zip_validate_mem_archive(const void *pMem, size_t size, mz_uint flags, mz_zip_error *pErr)
5631
0
    {
5632
0
        mz_bool success = MZ_TRUE;
5633
0
        mz_zip_archive zip;
5634
0
        mz_zip_error actual_err = MZ_ZIP_NO_ERROR;
5635
5636
0
        if ((!pMem) || (!size))
5637
0
        {
5638
0
            if (pErr)
5639
0
                *pErr = MZ_ZIP_INVALID_PARAMETER;
5640
0
            return MZ_FALSE;
5641
0
        }
5642
5643
0
        mz_zip_zero_struct(&zip);
5644
5645
0
        if (!mz_zip_reader_init_mem(&zip, pMem, size, flags))
5646
0
        {
5647
0
            if (pErr)
5648
0
                *pErr = zip.m_last_error;
5649
0
            return MZ_FALSE;
5650
0
        }
5651
5652
0
        if (!mz_zip_validate_archive(&zip, flags))
5653
0
        {
5654
0
            actual_err = zip.m_last_error;
5655
0
            success = MZ_FALSE;
5656
0
        }
5657
5658
0
        if (!mz_zip_reader_end_internal(&zip, success))
5659
0
        {
5660
0
            if (!actual_err)
5661
0
                actual_err = zip.m_last_error;
5662
0
            success = MZ_FALSE;
5663
0
        }
5664
5665
0
        if (pErr)
5666
0
            *pErr = actual_err;
5667
5668
0
        return success;
5669
0
    }
5670
5671
#ifndef MINIZ_NO_STDIO
5672
    mz_bool mz_zip_validate_file_archive(const char *pFilename, mz_uint flags, mz_zip_error *pErr)
5673
0
    {
5674
0
        mz_bool success = MZ_TRUE;
5675
0
        mz_zip_archive zip;
5676
0
        mz_zip_error actual_err = MZ_ZIP_NO_ERROR;
5677
5678
0
        if (!pFilename)
5679
0
        {
5680
0
            if (pErr)
5681
0
                *pErr = MZ_ZIP_INVALID_PARAMETER;
5682
0
            return MZ_FALSE;
5683
0
        }
5684
5685
0
        mz_zip_zero_struct(&zip);
5686
5687
0
        if (!mz_zip_reader_init_file_v2(&zip, pFilename, flags, 0, 0))
5688
0
        {
5689
0
            if (pErr)
5690
0
                *pErr = zip.m_last_error;
5691
0
            return MZ_FALSE;
5692
0
        }
5693
5694
0
        if (!mz_zip_validate_archive(&zip, flags))
5695
0
        {
5696
0
            actual_err = zip.m_last_error;
5697
0
            success = MZ_FALSE;
5698
0
        }
5699
5700
0
        if (!mz_zip_reader_end_internal(&zip, success))
5701
0
        {
5702
0
            if (!actual_err)
5703
0
                actual_err = zip.m_last_error;
5704
0
            success = MZ_FALSE;
5705
0
        }
5706
5707
0
        if (pErr)
5708
0
            *pErr = actual_err;
5709
5710
0
        return success;
5711
0
    }
5712
#endif /* #ifndef MINIZ_NO_STDIO */
5713
5714
    /* ------------------- .ZIP archive writing */
5715
5716
#ifndef MINIZ_NO_ARCHIVE_WRITING_APIS
5717
5718
    static MZ_FORCEINLINE void mz_write_le16(mz_uint8 *p, mz_uint16 v)
5719
94.0k
    {
5720
94.0k
        p[0] = (mz_uint8)v;
5721
94.0k
        p[1] = (mz_uint8)(v >> 8);
5722
94.0k
    }
5723
    static MZ_FORCEINLINE void mz_write_le32(mz_uint8 *p, mz_uint32 v)
5724
101k
    {
5725
101k
        p[0] = (mz_uint8)v;
5726
101k
        p[1] = (mz_uint8)(v >> 8);
5727
101k
        p[2] = (mz_uint8)(v >> 16);
5728
101k
        p[3] = (mz_uint8)(v >> 24);
5729
101k
    }
5730
    static MZ_FORCEINLINE void mz_write_le64(mz_uint8 *p, mz_uint64 v)
5731
4.53k
    {
5732
4.53k
        mz_write_le32(p, (mz_uint32)v);
5733
4.53k
        mz_write_le32(p + sizeof(mz_uint32), (mz_uint32)(v >> 32));
5734
4.53k
    }
5735
5736
94.0k
#define MZ_WRITE_LE16(p, v) mz_write_le16((mz_uint8 *)(p), (mz_uint16)(v))
5737
92.5k
#define MZ_WRITE_LE32(p, v) mz_write_le32((mz_uint8 *)(p), (mz_uint32)(v))
5738
4.53k
#define MZ_WRITE_LE64(p, v) mz_write_le64((mz_uint8 *)(p), (mz_uint64)(v))
5739
5740
    static size_t mz_zip_heap_write_func(void *pOpaque, mz_uint64 file_ofs, const void *pBuf, size_t n)
5741
0
    {
5742
0
        mz_zip_archive *pZip = (mz_zip_archive *)pOpaque;
5743
0
        mz_zip_internal_state *pState = pZip->m_pState;
5744
0
        mz_uint64 new_size = MZ_MAX(file_ofs + n, pState->m_mem_size);
5745
5746
0
        if (!n)
5747
0
            return 0;
5748
5749
        /* An allocation this big is likely to just fail on 32-bit systems, so don't even go there. */
5750
0
        if ((sizeof(size_t) == sizeof(mz_uint32)) && (new_size > 0x7FFFFFFF))
5751
0
        {
5752
0
            mz_zip_set_error(pZip, MZ_ZIP_FILE_TOO_LARGE);
5753
0
            return 0;
5754
0
        }
5755
5756
0
        if (new_size > pState->m_mem_capacity)
5757
0
        {
5758
0
            void *pNew_block;
5759
0
            size_t new_capacity = MZ_MAX(64, pState->m_mem_capacity);
5760
5761
0
            while (new_capacity < new_size)
5762
0
                new_capacity *= 2;
5763
5764
0
            if (NULL == (pNew_block = pZip->m_pRealloc(pZip->m_pAlloc_opaque, pState->m_pMem, 1, new_capacity)))
5765
0
            {
5766
0
                mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
5767
0
                return 0;
5768
0
            }
5769
5770
0
            pState->m_pMem = pNew_block;
5771
0
            pState->m_mem_capacity = new_capacity;
5772
0
        }
5773
0
        memcpy((mz_uint8 *)pState->m_pMem + file_ofs, pBuf, n);
5774
0
        pState->m_mem_size = (size_t)new_size;
5775
0
        return n;
5776
0
    }
5777
5778
    static mz_bool mz_zip_writer_end_internal(mz_zip_archive *pZip, mz_bool set_last_error)
5779
5.48k
    {
5780
5.48k
        mz_zip_internal_state *pState;
5781
5.48k
        mz_bool status = MZ_TRUE;
5782
5783
5.48k
        if ((!pZip) || (!pZip->m_pState) || (!pZip->m_pAlloc) || (!pZip->m_pFree) || ((pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) && (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED)))
5784
0
        {
5785
0
            if (set_last_error)
5786
0
                mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
5787
0
            return MZ_FALSE;
5788
0
        }
5789
5790
5.48k
        pState = pZip->m_pState;
5791
5.48k
        pZip->m_pState = NULL;
5792
5.48k
        mz_zip_array_clear(pZip, &pState->m_central_dir);
5793
5.48k
        mz_zip_array_clear(pZip, &pState->m_central_dir_offsets);
5794
5.48k
        mz_zip_array_clear(pZip, &pState->m_sorted_central_dir_offsets);
5795
5796
5.48k
#ifndef MINIZ_NO_STDIO
5797
5.48k
        if (pState->m_pFile)
5798
5.48k
        {
5799
5.48k
            if (pZip->m_zip_type == MZ_ZIP_TYPE_FILE)
5800
5.48k
            {
5801
5.48k
                if (MZ_FCLOSE(pState->m_pFile) == EOF)
5802
0
                {
5803
0
                    if (set_last_error)
5804
0
                        mz_zip_set_error(pZip, MZ_ZIP_FILE_CLOSE_FAILED);
5805
0
                    status = MZ_FALSE;
5806
0
                }
5807
5.48k
            }
5808
5809
5.48k
            pState->m_pFile = NULL;
5810
5.48k
        }
5811
5.48k
#endif /* #ifndef MINIZ_NO_STDIO */
5812
5813
5.48k
        if ((pZip->m_pWrite == mz_zip_heap_write_func) && (pState->m_pMem))
5814
0
        {
5815
0
            pZip->m_pFree(pZip->m_pAlloc_opaque, pState->m_pMem);
5816
0
            pState->m_pMem = NULL;
5817
0
        }
5818
5819
5.48k
        pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
5820
5.48k
        pZip->m_zip_mode = MZ_ZIP_MODE_INVALID;
5821
5.48k
        return status;
5822
5.48k
    }
5823
5824
    mz_bool mz_zip_writer_init_v2(mz_zip_archive *pZip, mz_uint64 existing_size, mz_uint flags)
5825
2.84k
    {
5826
2.84k
        mz_bool zip64 = (flags & MZ_ZIP_FLAG_WRITE_ZIP64) != 0;
5827
5828
2.84k
        if ((!pZip) || (pZip->m_pState) || (!pZip->m_pWrite) || (pZip->m_zip_mode != MZ_ZIP_MODE_INVALID))
5829
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
5830
5831
2.84k
        if (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING)
5832
168
        {
5833
168
            if (!pZip->m_pRead)
5834
0
                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
5835
168
        }
5836
5837
2.84k
        if (pZip->m_file_offset_alignment)
5838
0
        {
5839
            /* Ensure user specified file offset alignment is a power of 2. */
5840
0
            if (pZip->m_file_offset_alignment & (pZip->m_file_offset_alignment - 1))
5841
0
                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
5842
0
        }
5843
5844
2.84k
        if (!pZip->m_pAlloc)
5845
2.84k
            pZip->m_pAlloc = miniz_def_alloc_func;
5846
2.84k
        if (!pZip->m_pFree)
5847
2.84k
            pZip->m_pFree = miniz_def_free_func;
5848
2.84k
        if (!pZip->m_pRealloc)
5849
2.84k
            pZip->m_pRealloc = miniz_def_realloc_func;
5850
5851
2.84k
        pZip->m_archive_size = existing_size;
5852
2.84k
        pZip->m_central_directory_file_ofs = 0;
5853
2.84k
        pZip->m_total_files = 0;
5854
5855
2.84k
        if (NULL == (pZip->m_pState = (mz_zip_internal_state *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(mz_zip_internal_state))))
5856
0
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
5857
5858
2.84k
        memset(pZip->m_pState, 0, sizeof(mz_zip_internal_state));
5859
5860
2.84k
        MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir, sizeof(mz_uint8));
5861
2.84k
        MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir_offsets, sizeof(mz_uint32));
5862
2.84k
        MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_sorted_central_dir_offsets, sizeof(mz_uint32));
5863
5864
2.84k
        pZip->m_pState->m_zip64 = zip64;
5865
2.84k
        pZip->m_pState->m_zip64_has_extended_info_fields = zip64;
5866
5867
2.84k
        pZip->m_zip_type = MZ_ZIP_TYPE_USER;
5868
2.84k
        pZip->m_zip_mode = MZ_ZIP_MODE_WRITING;
5869
5870
2.84k
        return MZ_TRUE;
5871
2.84k
    }
5872
5873
    mz_bool mz_zip_writer_init(mz_zip_archive *pZip, mz_uint64 existing_size)
5874
0
    {
5875
0
        return mz_zip_writer_init_v2(pZip, existing_size, 0);
5876
0
    }
5877
5878
    mz_bool mz_zip_writer_init_heap_v2(mz_zip_archive *pZip, size_t size_to_reserve_at_beginning, size_t initial_allocation_size, mz_uint flags)
5879
0
    {
5880
0
        pZip->m_pWrite = mz_zip_heap_write_func;
5881
0
        pZip->m_pNeeds_keepalive = NULL;
5882
5883
0
        if (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING)
5884
0
            pZip->m_pRead = mz_zip_mem_read_func;
5885
5886
0
        pZip->m_pIO_opaque = pZip;
5887
5888
0
        if (!mz_zip_writer_init_v2(pZip, size_to_reserve_at_beginning, flags))
5889
0
            return MZ_FALSE;
5890
5891
0
        pZip->m_zip_type = MZ_ZIP_TYPE_HEAP;
5892
5893
0
        if (0 != (initial_allocation_size = MZ_MAX(initial_allocation_size, size_to_reserve_at_beginning)))
5894
0
        {
5895
0
            if (NULL == (pZip->m_pState->m_pMem = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, initial_allocation_size)))
5896
0
            {
5897
0
                mz_zip_writer_end_internal(pZip, MZ_FALSE);
5898
0
                return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
5899
0
            }
5900
0
            pZip->m_pState->m_mem_capacity = initial_allocation_size;
5901
0
        }
5902
5903
0
        return MZ_TRUE;
5904
0
    }
5905
5906
    mz_bool mz_zip_writer_init_heap(mz_zip_archive *pZip, size_t size_to_reserve_at_beginning, size_t initial_allocation_size)
5907
0
    {
5908
0
        return mz_zip_writer_init_heap_v2(pZip, size_to_reserve_at_beginning, initial_allocation_size, 0);
5909
0
    }
5910
5911
#ifndef MINIZ_NO_STDIO
5912
    static size_t mz_zip_file_write_func(void *pOpaque, mz_uint64 file_ofs, const void *pBuf, size_t n)
5913
35.8k
    {
5914
35.8k
        mz_zip_archive *pZip = (mz_zip_archive *)pOpaque;
5915
35.8k
        mz_int64 cur_ofs = MZ_FTELL64(pZip->m_pState->m_pFile);
5916
5917
35.8k
        file_ofs += pZip->m_pState->m_file_archive_start_ofs;
5918
5919
35.8k
        if (((mz_int64)file_ofs < 0) || (((cur_ofs != (mz_int64)file_ofs)) && (MZ_FSEEK64(pZip->m_pState->m_pFile, (mz_int64)file_ofs, SEEK_SET))))
5920
0
        {
5921
0
            mz_zip_set_error(pZip, MZ_ZIP_FILE_SEEK_FAILED);
5922
0
            return 0;
5923
0
        }
5924
5925
35.8k
        return MZ_FWRITE(pBuf, 1, n, pZip->m_pState->m_pFile);
5926
35.8k
    }
5927
5928
    mz_bool mz_zip_writer_init_file(mz_zip_archive *pZip, const char *pFilename, mz_uint64 size_to_reserve_at_beginning)
5929
0
    {
5930
0
        return mz_zip_writer_init_file_v2(pZip, pFilename, size_to_reserve_at_beginning, 0);
5931
0
    }
5932
5933
    mz_bool mz_zip_writer_init_file_v2(mz_zip_archive *pZip, const char *pFilename, mz_uint64 size_to_reserve_at_beginning, mz_uint flags)
5934
2.84k
    {
5935
2.84k
        MZ_FILE *pFile;
5936
5937
2.84k
        pZip->m_pWrite = mz_zip_file_write_func;
5938
2.84k
        pZip->m_pNeeds_keepalive = NULL;
5939
5940
2.84k
        if (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING)
5941
168
            pZip->m_pRead = mz_zip_file_read_func;
5942
5943
2.84k
        pZip->m_pIO_opaque = pZip;
5944
5945
2.84k
        if (!mz_zip_writer_init_v2(pZip, size_to_reserve_at_beginning, flags))
5946
0
            return MZ_FALSE;
5947
5948
2.84k
        if (NULL == (pFile = MZ_FOPEN(pFilename, (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING) ? "w+b" : "wb")))
5949
0
        {
5950
0
            mz_zip_writer_end(pZip);
5951
0
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED);
5952
0
        }
5953
5954
2.84k
        pZip->m_pState->m_pFile = pFile;
5955
2.84k
        pZip->m_zip_type = MZ_ZIP_TYPE_FILE;
5956
5957
2.84k
        if (size_to_reserve_at_beginning)
5958
0
        {
5959
0
            mz_uint64 cur_ofs = 0;
5960
0
            char buf[4096];
5961
5962
0
            MZ_CLEAR_ARR(buf);
5963
5964
0
            do
5965
0
            {
5966
0
                size_t n = (size_t)MZ_MIN(sizeof(buf), size_to_reserve_at_beginning);
5967
0
                if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_ofs, buf, n) != n)
5968
0
                {
5969
0
                    mz_zip_writer_end(pZip);
5970
0
                    return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
5971
0
                }
5972
0
                cur_ofs += n;
5973
0
                size_to_reserve_at_beginning -= n;
5974
0
            } while (size_to_reserve_at_beginning);
5975
0
        }
5976
5977
2.84k
        return MZ_TRUE;
5978
2.84k
    }
5979
5980
    mz_bool mz_zip_writer_init_cfile(mz_zip_archive *pZip, MZ_FILE *pFile, mz_uint flags)
5981
0
    {
5982
0
        pZip->m_pWrite = mz_zip_file_write_func;
5983
0
        pZip->m_pNeeds_keepalive = NULL;
5984
5985
0
        if (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING)
5986
0
            pZip->m_pRead = mz_zip_file_read_func;
5987
5988
0
        pZip->m_pIO_opaque = pZip;
5989
5990
0
        if (!mz_zip_writer_init_v2(pZip, 0, flags))
5991
0
            return MZ_FALSE;
5992
5993
0
        pZip->m_pState->m_pFile = pFile;
5994
0
        pZip->m_pState->m_file_archive_start_ofs = MZ_FTELL64(pZip->m_pState->m_pFile);
5995
0
        pZip->m_zip_type = MZ_ZIP_TYPE_CFILE;
5996
5997
0
        return MZ_TRUE;
5998
0
    }
5999
#endif /* #ifndef MINIZ_NO_STDIO */
6000
6001
    mz_bool mz_zip_writer_init_from_reader_v2(mz_zip_archive *pZip, const char *pFilename, mz_uint flags)
6002
2.67k
    {
6003
2.67k
        mz_zip_internal_state *pState;
6004
6005
2.67k
        if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_READING))
6006
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
6007
6008
2.67k
        if (flags & MZ_ZIP_FLAG_WRITE_ZIP64)
6009
163
        {
6010
            /* We don't support converting a non-zip64 file to zip64 - this seems like more trouble than it's worth. (What about the existing 32-bit data descriptors that could follow the compressed data?) */
6011
163
            if (!pZip->m_pState->m_zip64)
6012
37
                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
6013
163
        }
6014
6015
        /* No sense in trying to write to an archive that's already at the support max size */
6016
2.63k
        if (pZip->m_pState->m_zip64)
6017
517
        {
6018
517
            if (pZip->m_total_files == MZ_UINT32_MAX)
6019
0
                return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
6020
517
        }
6021
2.11k
        else
6022
2.11k
        {
6023
2.11k
            if (pZip->m_total_files == MZ_UINT16_MAX)
6024
0
                return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
6025
6026
2.11k
            if ((pZip->m_archive_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + MZ_ZIP_LOCAL_DIR_HEADER_SIZE) > MZ_UINT32_MAX)
6027
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_TOO_LARGE);
6028
2.11k
        }
6029
6030
2.63k
        pState = pZip->m_pState;
6031
6032
2.63k
        if (pState->m_pFile)
6033
2.63k
        {
6034
#ifdef MINIZ_NO_STDIO
6035
            (void)pFilename;
6036
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
6037
#else
6038
2.63k
            if (pZip->m_pIO_opaque != pZip)
6039
0
                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
6040
6041
2.63k
            if (pZip->m_zip_type == MZ_ZIP_TYPE_FILE &&
6042
2.63k
                !(flags & MZ_ZIP_FLAG_READ_ALLOW_WRITING) )
6043
0
            {
6044
0
                if (!pFilename)
6045
0
                    return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
6046
6047
                /* Archive is being read from stdio and was originally opened only for reading. Try to reopen as writable. */
6048
0
                if (NULL == (pState->m_pFile = MZ_FREOPEN(pFilename, "r+b", pState->m_pFile)))
6049
0
                {
6050
                    /* The mz_zip_archive is now in a bogus state because pState->m_pFile is NULL, so just close it. */
6051
0
                    mz_zip_reader_end_internal(pZip, MZ_FALSE);
6052
0
                    return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED);
6053
0
                }
6054
0
            }
6055
6056
2.63k
            pZip->m_pWrite = mz_zip_file_write_func;
6057
2.63k
            pZip->m_pNeeds_keepalive = NULL;
6058
2.63k
#endif /* #ifdef MINIZ_NO_STDIO */
6059
2.63k
        }
6060
0
        else if (pState->m_pMem)
6061
0
        {
6062
            /* Archive lives in a memory block. Assume it's from the heap that we can resize using the realloc callback. */
6063
0
            if (pZip->m_pIO_opaque != pZip)
6064
0
                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
6065
6066
0
            pState->m_mem_capacity = pState->m_mem_size;
6067
0
            pZip->m_pWrite = mz_zip_heap_write_func;
6068
0
            pZip->m_pNeeds_keepalive = NULL;
6069
0
        }
6070
        /* Archive is being read via a user provided read function - make sure the user has specified a write function too. */
6071
0
        else if (!pZip->m_pWrite)
6072
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
6073
6074
        /* Start writing new files at the archive's current central directory location. */
6075
        /* TODO: We could add a flag that lets the user start writing immediately AFTER the existing central dir - this would be safer. */
6076
2.63k
        pZip->m_archive_size = pZip->m_central_directory_file_ofs;
6077
2.63k
        pZip->m_central_directory_file_ofs = 0;
6078
6079
        /* Clear the sorted central dir offsets, they aren't useful or maintained now. */
6080
        /* Even though we're now in write mode, files can still be extracted and verified, but file locates will be slow. */
6081
        /* TODO: We could easily maintain the sorted central directory offsets. */
6082
2.63k
        mz_zip_array_clear(pZip, &pZip->m_pState->m_sorted_central_dir_offsets);
6083
6084
2.63k
        pZip->m_zip_mode = MZ_ZIP_MODE_WRITING;
6085
6086
2.63k
        return MZ_TRUE;
6087
2.63k
    }
6088
6089
    mz_bool mz_zip_writer_init_from_reader(mz_zip_archive *pZip, const char *pFilename)
6090
0
    {
6091
0
        return mz_zip_writer_init_from_reader_v2(pZip, pFilename, 0);
6092
0
    }
6093
6094
    /* TODO: pArchive_name is a terrible name here! */
6095
    mz_bool mz_zip_writer_add_mem(mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf, size_t buf_size, mz_uint level_and_flags)
6096
0
    {
6097
0
        return mz_zip_writer_add_mem_ex(pZip, pArchive_name, pBuf, buf_size, NULL, 0, level_and_flags, 0, 0);
6098
0
    }
6099
6100
    typedef struct
6101
    {
6102
        mz_zip_archive *m_pZip;
6103
        mz_uint64 m_cur_archive_file_ofs;
6104
        mz_uint64 m_comp_size;
6105
    } mz_zip_writer_add_state;
6106
6107
    static mz_bool mz_zip_writer_add_put_buf_callback(const void *pBuf, int len, void *pUser)
6108
5.23k
    {
6109
5.23k
        mz_zip_writer_add_state *pState = (mz_zip_writer_add_state *)pUser;
6110
5.23k
        if ((int)pState->m_pZip->m_pWrite(pState->m_pZip->m_pIO_opaque, pState->m_cur_archive_file_ofs, pBuf, len) != len)
6111
0
            return MZ_FALSE;
6112
6113
5.23k
        pState->m_cur_archive_file_ofs += len;
6114
5.23k
        pState->m_comp_size += len;
6115
5.23k
        return MZ_TRUE;
6116
5.23k
    }
6117
6118
#define MZ_ZIP64_MAX_LOCAL_EXTRA_FIELD_SIZE (sizeof(mz_uint16) * 2 + sizeof(mz_uint64) * 2)
6119
6.23k
#define MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE (sizeof(mz_uint16) * 2 + sizeof(mz_uint64) * 3)
6120
    static mz_uint32 mz_zip_writer_create_zip64_extra_data(mz_uint8 *pBuf, mz_uint64 *pUncomp_size, mz_uint64 *pComp_size, mz_uint64 *pLocal_header_ofs)
6121
0
    {
6122
0
        mz_uint8 *pDst = pBuf;
6123
0
        mz_uint32 field_size = 0;
6124
6125
0
        MZ_WRITE_LE16(pDst + 0, MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID);
6126
0
        MZ_WRITE_LE16(pDst + 2, 0);
6127
0
        pDst += sizeof(mz_uint16) * 2;
6128
6129
0
        if (pUncomp_size)
6130
0
        {
6131
0
            MZ_WRITE_LE64(pDst, *pUncomp_size);
6132
0
            pDst += sizeof(mz_uint64);
6133
0
            field_size += sizeof(mz_uint64);
6134
0
        }
6135
6136
0
        if (pComp_size)
6137
0
        {
6138
0
            MZ_WRITE_LE64(pDst, *pComp_size);
6139
0
            pDst += sizeof(mz_uint64);
6140
0
            field_size += sizeof(mz_uint64);
6141
0
        }
6142
6143
0
        if (pLocal_header_ofs)
6144
0
        {
6145
0
            MZ_WRITE_LE64(pDst, *pLocal_header_ofs);
6146
0
            pDst += sizeof(mz_uint64);
6147
0
            field_size += sizeof(mz_uint64);
6148
0
        }
6149
6150
0
        MZ_WRITE_LE16(pBuf + 2, field_size);
6151
6152
0
        return (mz_uint32)(pDst - pBuf);
6153
0
    }
6154
6155
    static mz_bool mz_zip_writer_create_local_dir_header(mz_zip_archive *pZip, mz_uint8 *pDst, mz_uint16 filename_size, mz_uint16 extra_size, mz_uint64 uncomp_size, mz_uint64 comp_size, mz_uint32 uncomp_crc32, mz_uint16 method, mz_uint16 bit_flags, mz_uint16 dos_time, mz_uint16 dos_date)
6156
5.43k
    {
6157
5.43k
        (void)pZip;
6158
5.43k
        memset(pDst, 0, MZ_ZIP_LOCAL_DIR_HEADER_SIZE);
6159
5.43k
        MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_SIG_OFS, MZ_ZIP_LOCAL_DIR_HEADER_SIG);
6160
5.43k
        MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_VERSION_NEEDED_OFS, method ? 20 : 0);
6161
5.43k
        MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_BIT_FLAG_OFS, bit_flags);
6162
5.43k
        MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_METHOD_OFS, method);
6163
5.43k
        MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_FILE_TIME_OFS, dos_time);
6164
5.43k
        MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_FILE_DATE_OFS, dos_date);
6165
5.43k
        MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_CRC32_OFS, uncomp_crc32);
6166
5.43k
        MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_COMPRESSED_SIZE_OFS, MZ_MIN(comp_size, MZ_UINT32_MAX));
6167
5.43k
        MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS, MZ_MIN(uncomp_size, MZ_UINT32_MAX));
6168
5.43k
        MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_FILENAME_LEN_OFS, filename_size);
6169
5.43k
        MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_EXTRA_LEN_OFS, extra_size);
6170
5.43k
        return MZ_TRUE;
6171
5.43k
    }
6172
6173
    static mz_bool mz_zip_writer_create_central_dir_header(mz_zip_archive *pZip, mz_uint8 *pDst,
6174
                                                           mz_uint16 filename_size, mz_uint16 extra_size, mz_uint16 comment_size,
6175
                                                           mz_uint64 uncomp_size, mz_uint64 comp_size, mz_uint32 uncomp_crc32,
6176
                                                           mz_uint16 method, mz_uint16 bit_flags, mz_uint16 dos_time, mz_uint16 dos_date,
6177
                                                           mz_uint64 local_header_ofs, mz_uint32 ext_attributes)
6178
5.43k
    {
6179
5.43k
        (void)pZip;
6180
5.43k
        memset(pDst, 0, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE);
6181
5.43k
        MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_SIG_OFS, MZ_ZIP_CENTRAL_DIR_HEADER_SIG);
6182
5.43k
        MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_VERSION_NEEDED_OFS, method ? 20 : 0);
6183
5.43k
        MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_BIT_FLAG_OFS, bit_flags);
6184
5.43k
        MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_METHOD_OFS, method);
6185
5.43k
        MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_FILE_TIME_OFS, dos_time);
6186
5.43k
        MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_FILE_DATE_OFS, dos_date);
6187
5.43k
        MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_CRC32_OFS, uncomp_crc32);
6188
5.43k
        MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS, MZ_MIN(comp_size, MZ_UINT32_MAX));
6189
5.43k
        MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS, MZ_MIN(uncomp_size, MZ_UINT32_MAX));
6190
5.43k
        MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_FILENAME_LEN_OFS, filename_size);
6191
5.43k
        MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_EXTRA_LEN_OFS, extra_size);
6192
5.43k
        MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_COMMENT_LEN_OFS, comment_size);
6193
5.43k
        MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_EXTERNAL_ATTR_OFS, ext_attributes);
6194
5.43k
        MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_LOCAL_HEADER_OFS, MZ_MIN(local_header_ofs, MZ_UINT32_MAX));
6195
5.43k
        return MZ_TRUE;
6196
5.43k
    }
6197
6198
    static mz_bool mz_zip_writer_add_to_central_dir(mz_zip_archive *pZip, const char *pFilename, mz_uint16 filename_size,
6199
                                                    const void *pExtra, mz_uint16 extra_size, const void *pComment, mz_uint16 comment_size,
6200
                                                    mz_uint64 uncomp_size, mz_uint64 comp_size, mz_uint32 uncomp_crc32,
6201
                                                    mz_uint16 method, mz_uint16 bit_flags, mz_uint16 dos_time, mz_uint16 dos_date,
6202
                                                    mz_uint64 local_header_ofs, mz_uint32 ext_attributes,
6203
                                                    const char *user_extra_data, mz_uint user_extra_data_len)
6204
5.43k
    {
6205
5.43k
        mz_zip_internal_state *pState = pZip->m_pState;
6206
5.43k
        mz_uint32 central_dir_ofs = (mz_uint32)pState->m_central_dir.m_size;
6207
5.43k
        size_t orig_central_dir_size = pState->m_central_dir.m_size;
6208
5.43k
        mz_uint8 central_dir_header[MZ_ZIP_CENTRAL_DIR_HEADER_SIZE];
6209
6210
5.43k
        if (!pZip->m_pState->m_zip64)
6211
4.68k
        {
6212
4.68k
            if (local_header_ofs > 0xFFFFFFFF)
6213
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_TOO_LARGE);
6214
4.68k
        }
6215
6216
        /* miniz doesn't support central dirs >= MZ_UINT32_MAX bytes yet */
6217
5.43k
        if (((mz_uint64)pState->m_central_dir.m_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_size + extra_size + user_extra_data_len + comment_size) >= MZ_UINT32_MAX)
6218
0
            return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE);
6219
6220
5.43k
        if (!mz_zip_writer_create_central_dir_header(pZip, central_dir_header, filename_size, (mz_uint16)(extra_size + user_extra_data_len), comment_size, uncomp_size, comp_size, uncomp_crc32, method, bit_flags, dos_time, dos_date, local_header_ofs, ext_attributes))
6221
0
            return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
6222
6223
5.43k
        if ((!mz_zip_array_push_back(pZip, &pState->m_central_dir, central_dir_header, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE)) ||
6224
5.43k
            (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pFilename, filename_size)) ||
6225
5.43k
            (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pExtra, extra_size)) ||
6226
5.43k
            (!mz_zip_array_push_back(pZip, &pState->m_central_dir, user_extra_data, user_extra_data_len)) ||
6227
5.43k
            (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pComment, comment_size)) ||
6228
5.43k
            (!mz_zip_array_push_back(pZip, &pState->m_central_dir_offsets, &central_dir_ofs, 1)))
6229
0
        {
6230
            /* Try to resize the central directory array back into its original state. */
6231
0
            mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE);
6232
0
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
6233
0
        }
6234
6235
5.43k
        return MZ_TRUE;
6236
5.43k
    }
6237
6238
    static mz_bool mz_zip_writer_validate_archive_name(const char *pArchive_name)
6239
11.0k
    {
6240
        /* Basic ZIP archive filename validity checks: Valid filenames cannot start with a forward slash, cannot contain a drive letter, and cannot use DOS-style backward slashes. */
6241
11.0k
        if (*pArchive_name == '/')
6242
35
            return MZ_FALSE;
6243
6244
        /* Making sure the name does not contain drive letters or DOS style backward slashes is the responsibility of the program using miniz*/
6245
6246
11.0k
        return MZ_TRUE;
6247
11.0k
    }
6248
6249
    static mz_uint mz_zip_writer_compute_padding_needed_for_file_alignment(mz_zip_archive *pZip)
6250
5.48k
    {
6251
5.48k
        mz_uint32 n;
6252
5.48k
        if (!pZip->m_file_offset_alignment)
6253
5.48k
            return 0;
6254
0
        n = (mz_uint32)(pZip->m_archive_size & (pZip->m_file_offset_alignment - 1));
6255
0
        return (mz_uint)((pZip->m_file_offset_alignment - n) & (pZip->m_file_offset_alignment - 1));
6256
5.48k
    }
6257
6258
    static mz_bool mz_zip_writer_write_zeros(mz_zip_archive *pZip, mz_uint64 cur_file_ofs, mz_uint32 n)
6259
5.43k
    {
6260
5.43k
        char buf[4096];
6261
5.43k
        memset(buf, 0, MZ_MIN(sizeof(buf), n));
6262
5.43k
        while (n)
6263
0
        {
6264
0
            mz_uint32 s = MZ_MIN(sizeof(buf), n);
6265
0
            if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_file_ofs, buf, s) != s)
6266
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
6267
6268
0
            cur_file_ofs += s;
6269
0
            n -= s;
6270
0
        }
6271
5.43k
        return MZ_TRUE;
6272
5.43k
    }
6273
6274
    mz_bool mz_zip_writer_add_mem_ex(mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags,
6275
                                     mz_uint64 uncomp_size, mz_uint32 uncomp_crc32)
6276
5.48k
    {
6277
5.48k
        return mz_zip_writer_add_mem_ex_v2(pZip, pArchive_name, pBuf, buf_size, pComment, comment_size, level_and_flags, uncomp_size, uncomp_crc32, NULL, NULL, 0, NULL, 0);
6278
5.48k
    }
6279
6280
    mz_bool mz_zip_writer_add_mem_ex_v2(mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size,
6281
                                        mz_uint level_and_flags, mz_uint64 uncomp_size, mz_uint32 uncomp_crc32, MZ_TIME_T *last_modified,
6282
                                        const char *user_extra_data, mz_uint user_extra_data_len, const char *user_extra_data_central, mz_uint user_extra_data_central_len)
6283
5.48k
    {
6284
5.48k
        mz_uint16 method = 0, dos_time = 0, dos_date = 0;
6285
5.48k
        mz_uint level, ext_attributes = 0, num_alignment_padding_bytes;
6286
5.48k
        mz_uint64 local_dir_header_ofs = pZip->m_archive_size, cur_archive_file_ofs = pZip->m_archive_size, comp_size = 0;
6287
5.48k
        size_t archive_name_size;
6288
5.48k
        mz_uint8 local_dir_header[MZ_ZIP_LOCAL_DIR_HEADER_SIZE];
6289
5.48k
        tdefl_compressor *pComp = NULL;
6290
5.48k
        mz_bool store_data_uncompressed;
6291
5.48k
        mz_zip_internal_state *pState;
6292
5.48k
        mz_uint8 *pExtra_data = NULL;
6293
5.48k
        mz_uint32 extra_size = 0;
6294
5.48k
        mz_uint8 extra_data[MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE];
6295
5.48k
        mz_uint16 bit_flags = 0;
6296
6297
5.48k
        if ((int)level_and_flags < 0)
6298
0
            level_and_flags = MZ_DEFAULT_LEVEL;
6299
6300
5.48k
        if (uncomp_size || (buf_size && !(level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)))
6301
4.92k
            bit_flags |= MZ_ZIP_LDH_BIT_FLAG_HAS_LOCATOR;
6302
6303
5.48k
        if (!(level_and_flags & MZ_ZIP_FLAG_ASCII_FILENAME))
6304
5.18k
            bit_flags |= MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_UTF8;
6305
6306
5.48k
        level = level_and_flags & 0xF;
6307
5.48k
        store_data_uncompressed = ((!level) || (level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA));
6308
6309
5.48k
        if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) || ((buf_size) && (!pBuf)) || (!pArchive_name) || ((comment_size) && (!pComment)) || (level > MZ_UBER_COMPRESSION))
6310
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
6311
6312
5.48k
        pState = pZip->m_pState;
6313
6314
5.48k
        if (pState->m_zip64)
6315
756
        {
6316
756
            if (pZip->m_total_files == MZ_UINT32_MAX)
6317
0
                return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
6318
756
        }
6319
4.72k
        else
6320
4.72k
        {
6321
4.72k
            if (pZip->m_total_files == MZ_UINT16_MAX)
6322
0
            {
6323
0
                pState->m_zip64 = MZ_TRUE;
6324
                /*return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES); */
6325
0
            }
6326
4.72k
            if (((mz_uint64)buf_size > 0xFFFFFFFF) || (uncomp_size > 0xFFFFFFFF))
6327
0
            {
6328
0
                pState->m_zip64 = MZ_TRUE;
6329
                /*return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); */
6330
0
            }
6331
4.72k
        }
6332
6333
5.48k
        if ((!(level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) && (uncomp_size))
6334
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
6335
6336
5.48k
        if (!mz_zip_writer_validate_archive_name(pArchive_name))
6337
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_FILENAME);
6338
6339
5.48k
#ifndef MINIZ_NO_TIME
6340
5.48k
        if (last_modified != NULL)
6341
0
        {
6342
0
            mz_zip_time_t_to_dos_time(*last_modified, &dos_time, &dos_date);
6343
0
        }
6344
5.48k
        else
6345
5.48k
        {
6346
5.48k
            MZ_TIME_T cur_time;
6347
5.48k
            time(&cur_time);
6348
5.48k
            mz_zip_time_t_to_dos_time(cur_time, &dos_time, &dos_date);
6349
5.48k
        }
6350
#else
6351
        (void)last_modified;
6352
#endif /* #ifndef MINIZ_NO_TIME */
6353
6354
5.48k
        if (!(level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA))
6355
4.92k
        {
6356
4.92k
            uncomp_crc32 = (mz_uint32)mz_crc32(MZ_CRC32_INIT, (const mz_uint8 *)pBuf, buf_size);
6357
4.92k
            uncomp_size = buf_size;
6358
4.92k
            if (uncomp_size <= 3)
6359
798
            {
6360
798
                level = 0;
6361
798
                store_data_uncompressed = MZ_TRUE;
6362
798
            }
6363
4.92k
        }
6364
6365
5.48k
        archive_name_size = strlen(pArchive_name);
6366
5.48k
        if (archive_name_size > MZ_UINT16_MAX)
6367
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_FILENAME);
6368
6369
5.48k
        num_alignment_padding_bytes = mz_zip_writer_compute_padding_needed_for_file_alignment(pZip);
6370
6371
        /* miniz doesn't support central dirs >= MZ_UINT32_MAX bytes yet */
6372
5.48k
        if (((mz_uint64)pState->m_central_dir.m_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size + MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE + comment_size) >= MZ_UINT32_MAX)
6373
0
            return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE);
6374
6375
5.48k
        if (!pState->m_zip64)
6376
4.72k
        {
6377
            /* Bail early if the archive would obviously become too large */
6378
4.72k
            if ((pZip->m_archive_size + num_alignment_padding_bytes + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + archive_name_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size + comment_size + user_extra_data_len +
6379
4.72k
                 pState->m_central_dir.m_size + MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE + user_extra_data_central_len + MZ_ZIP_DATA_DESCRIPTER_SIZE32) > 0xFFFFFFFF)
6380
0
            {
6381
0
                pState->m_zip64 = MZ_TRUE;
6382
                /*return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); */
6383
0
            }
6384
4.72k
        }
6385
6386
5.48k
        if ((archive_name_size) && (pArchive_name[archive_name_size - 1] == '/'))
6387
47
        {
6388
            /* Set DOS Subdirectory attribute bit. */
6389
47
            ext_attributes |= MZ_ZIP_DOS_DIR_ATTRIBUTE_BITFLAG;
6390
6391
            /* Subdirectories cannot contain data. */
6392
47
            if ((buf_size) || (uncomp_size))
6393
47
                return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
6394
47
        }
6395
6396
        /* Try to do any allocations before writing to the archive, so if an allocation fails the file remains unmodified. (A good idea if we're doing an in-place modification.) */
6397
5.43k
        if ((!mz_zip_array_ensure_room(pZip, &pState->m_central_dir, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size + comment_size + (pState->m_zip64 ? MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE : 0))) || (!mz_zip_array_ensure_room(pZip, &pState->m_central_dir_offsets, 1)))
6398
0
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
6399
6400
5.43k
        if ((!store_data_uncompressed) && (buf_size))
6401
3.00k
        {
6402
3.00k
            if (NULL == (pComp = (tdefl_compressor *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(tdefl_compressor))))
6403
0
                return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
6404
3.00k
        }
6405
6406
5.43k
        if (!mz_zip_writer_write_zeros(pZip, cur_archive_file_ofs, num_alignment_padding_bytes))
6407
0
        {
6408
0
            pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
6409
0
            return MZ_FALSE;
6410
0
        }
6411
6412
5.43k
        local_dir_header_ofs += num_alignment_padding_bytes;
6413
5.43k
        if (pZip->m_file_offset_alignment)
6414
0
        {
6415
0
            MZ_ASSERT((local_dir_header_ofs & (pZip->m_file_offset_alignment - 1)) == 0);
6416
0
        }
6417
5.43k
        cur_archive_file_ofs += num_alignment_padding_bytes;
6418
6419
5.43k
        MZ_CLEAR_ARR(local_dir_header);
6420
6421
5.43k
        if (!store_data_uncompressed || (level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA))
6422
3.55k
        {
6423
3.55k
            method = MZ_DEFLATED;
6424
3.55k
        }
6425
6426
5.43k
        if (pState->m_zip64)
6427
749
        {
6428
749
            if (uncomp_size >= MZ_UINT32_MAX || local_dir_header_ofs >= MZ_UINT32_MAX)
6429
0
            {
6430
0
                pExtra_data = extra_data;
6431
0
                extra_size = mz_zip_writer_create_zip64_extra_data(extra_data, (uncomp_size >= MZ_UINT32_MAX) ? &uncomp_size : NULL,
6432
0
                                                                   (uncomp_size >= MZ_UINT32_MAX) ? &comp_size : NULL, (local_dir_header_ofs >= MZ_UINT32_MAX) ? &local_dir_header_ofs : NULL);
6433
0
            }
6434
6435
749
            if (!mz_zip_writer_create_local_dir_header(pZip, local_dir_header, (mz_uint16)archive_name_size, (mz_uint16)(extra_size + user_extra_data_len), 0, 0, 0, method, bit_flags, dos_time, dos_date))
6436
0
                return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
6437
6438
749
            if (pZip->m_pWrite(pZip->m_pIO_opaque, local_dir_header_ofs, local_dir_header, sizeof(local_dir_header)) != sizeof(local_dir_header))
6439
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
6440
6441
749
            cur_archive_file_ofs += sizeof(local_dir_header);
6442
6443
749
            if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pArchive_name, archive_name_size) != archive_name_size)
6444
0
            {
6445
0
                pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
6446
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
6447
0
            }
6448
749
            cur_archive_file_ofs += archive_name_size;
6449
6450
749
            if (pExtra_data != NULL)
6451
0
            {
6452
0
                if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, extra_data, extra_size) != extra_size)
6453
0
                    return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
6454
6455
0
                cur_archive_file_ofs += extra_size;
6456
0
            }
6457
749
        }
6458
4.68k
        else
6459
4.68k
        {
6460
4.68k
            if ((comp_size > MZ_UINT32_MAX) || (cur_archive_file_ofs > MZ_UINT32_MAX))
6461
0
                return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
6462
4.68k
            if (!mz_zip_writer_create_local_dir_header(pZip, local_dir_header, (mz_uint16)archive_name_size, (mz_uint16)user_extra_data_len, 0, 0, 0, method, bit_flags, dos_time, dos_date))
6463
0
                return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
6464
6465
4.68k
            if (pZip->m_pWrite(pZip->m_pIO_opaque, local_dir_header_ofs, local_dir_header, sizeof(local_dir_header)) != sizeof(local_dir_header))
6466
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
6467
6468
4.68k
            cur_archive_file_ofs += sizeof(local_dir_header);
6469
6470
4.68k
            if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pArchive_name, archive_name_size) != archive_name_size)
6471
0
            {
6472
0
                pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
6473
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
6474
0
            }
6475
4.68k
            cur_archive_file_ofs += archive_name_size;
6476
4.68k
        }
6477
6478
5.43k
        if (user_extra_data_len > 0)
6479
0
        {
6480
0
            if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, user_extra_data, user_extra_data_len) != user_extra_data_len)
6481
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
6482
6483
0
            cur_archive_file_ofs += user_extra_data_len;
6484
0
        }
6485
6486
5.43k
        if (store_data_uncompressed)
6487
2.43k
        {
6488
2.43k
            if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pBuf, buf_size) != buf_size)
6489
0
            {
6490
0
                pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
6491
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
6492
0
            }
6493
6494
2.43k
            cur_archive_file_ofs += buf_size;
6495
2.43k
            comp_size = buf_size;
6496
2.43k
        }
6497
3.00k
        else if (buf_size)
6498
3.00k
        {
6499
3.00k
            mz_zip_writer_add_state state;
6500
6501
3.00k
            state.m_pZip = pZip;
6502
3.00k
            state.m_cur_archive_file_ofs = cur_archive_file_ofs;
6503
3.00k
            state.m_comp_size = 0;
6504
6505
3.00k
            if ((tdefl_init(pComp, mz_zip_writer_add_put_buf_callback, &state, tdefl_create_comp_flags_from_zip_params(level, -15, MZ_DEFAULT_STRATEGY)) != TDEFL_STATUS_OKAY) ||
6506
3.00k
                (tdefl_compress_buffer(pComp, pBuf, buf_size, TDEFL_FINISH) != TDEFL_STATUS_DONE))
6507
0
            {
6508
0
                pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
6509
0
                return mz_zip_set_error(pZip, MZ_ZIP_COMPRESSION_FAILED);
6510
0
            }
6511
6512
3.00k
            comp_size = state.m_comp_size;
6513
3.00k
            cur_archive_file_ofs = state.m_cur_archive_file_ofs;
6514
3.00k
        }
6515
6516
5.43k
        pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
6517
5.43k
        pComp = NULL;
6518
6519
5.43k
        if (uncomp_size)
6520
4.88k
        {
6521
4.88k
            mz_uint8 local_dir_footer[MZ_ZIP_DATA_DESCRIPTER_SIZE64];
6522
4.88k
            mz_uint32 local_dir_footer_size = MZ_ZIP_DATA_DESCRIPTER_SIZE32;
6523
6524
4.88k
            MZ_ASSERT(bit_flags & MZ_ZIP_LDH_BIT_FLAG_HAS_LOCATOR);
6525
6526
4.88k
            MZ_WRITE_LE32(local_dir_footer + 0, MZ_ZIP_DATA_DESCRIPTOR_ID);
6527
4.88k
            MZ_WRITE_LE32(local_dir_footer + 4, uncomp_crc32);
6528
4.88k
            if (pExtra_data == NULL)
6529
4.88k
            {
6530
4.88k
                if (comp_size > MZ_UINT32_MAX)
6531
0
                    return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
6532
6533
4.88k
                MZ_WRITE_LE32(local_dir_footer + 8, comp_size);
6534
4.88k
                MZ_WRITE_LE32(local_dir_footer + 12, uncomp_size);
6535
4.88k
            }
6536
0
            else
6537
0
            {
6538
0
                MZ_WRITE_LE64(local_dir_footer + 8, comp_size);
6539
0
                MZ_WRITE_LE64(local_dir_footer + 16, uncomp_size);
6540
0
                local_dir_footer_size = MZ_ZIP_DATA_DESCRIPTER_SIZE64;
6541
0
            }
6542
6543
4.88k
            if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, local_dir_footer, local_dir_footer_size) != local_dir_footer_size)
6544
0
                return MZ_FALSE;
6545
6546
4.88k
            cur_archive_file_ofs += local_dir_footer_size;
6547
4.88k
        }
6548
6549
5.43k
        if (pExtra_data != NULL)
6550
0
        {
6551
0
            extra_size = mz_zip_writer_create_zip64_extra_data(extra_data, (uncomp_size >= MZ_UINT32_MAX) ? &uncomp_size : NULL,
6552
0
                                                               (uncomp_size >= MZ_UINT32_MAX) ? &comp_size : NULL, (local_dir_header_ofs >= MZ_UINT32_MAX) ? &local_dir_header_ofs : NULL);
6553
0
        }
6554
6555
5.43k
        if (!mz_zip_writer_add_to_central_dir(pZip, pArchive_name, (mz_uint16)archive_name_size, pExtra_data, (mz_uint16)extra_size, pComment,
6556
5.43k
                                              comment_size, uncomp_size, comp_size, uncomp_crc32, method, bit_flags, dos_time, dos_date, local_dir_header_ofs, ext_attributes,
6557
5.43k
                                              user_extra_data_central, user_extra_data_central_len))
6558
0
            return MZ_FALSE;
6559
6560
5.43k
        pZip->m_total_files++;
6561
5.43k
        pZip->m_archive_size = cur_archive_file_ofs;
6562
6563
5.43k
        return MZ_TRUE;
6564
5.43k
    }
6565
6566
    mz_bool mz_zip_writer_add_read_buf_callback(mz_zip_archive *pZip, const char *pArchive_name, mz_file_read_func read_callback, void *callback_opaque, mz_uint64 max_size, const MZ_TIME_T *pFile_time, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags,
6567
                                                const char *user_extra_data, mz_uint user_extra_data_len, const char *user_extra_data_central, mz_uint user_extra_data_central_len)
6568
0
    {
6569
0
        mz_uint16 gen_flags;
6570
0
        mz_uint uncomp_crc32 = MZ_CRC32_INIT, level, num_alignment_padding_bytes;
6571
0
        mz_uint16 method = 0, dos_time = 0, dos_date = 0, ext_attributes = 0;
6572
0
        mz_uint64 local_dir_header_ofs, cur_archive_file_ofs = pZip->m_archive_size, uncomp_size = 0, comp_size = 0;
6573
0
        size_t archive_name_size;
6574
0
        mz_uint8 local_dir_header[MZ_ZIP_LOCAL_DIR_HEADER_SIZE];
6575
0
        mz_uint8 *pExtra_data = NULL;
6576
0
        mz_uint32 extra_size = 0;
6577
0
        mz_uint8 extra_data[MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE];
6578
0
        mz_zip_internal_state *pState;
6579
0
        mz_uint64 file_ofs = 0, cur_archive_header_file_ofs;
6580
6581
0
        if ((int)level_and_flags < 0)
6582
0
            level_and_flags = MZ_DEFAULT_LEVEL;
6583
0
        level = level_and_flags & 0xF;
6584
6585
0
        gen_flags = (level_and_flags & MZ_ZIP_FLAG_WRITE_HEADER_SET_SIZE) ? 0 : MZ_ZIP_LDH_BIT_FLAG_HAS_LOCATOR;
6586
6587
0
        if (!(level_and_flags & MZ_ZIP_FLAG_ASCII_FILENAME))
6588
0
            gen_flags |= MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_UTF8;
6589
6590
        /* Sanity checks */
6591
0
        if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) || (!pArchive_name) || ((comment_size) && (!pComment)) || (level > MZ_UBER_COMPRESSION))
6592
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
6593
6594
0
        pState = pZip->m_pState;
6595
6596
0
        if ((!pState->m_zip64) && (max_size > MZ_UINT32_MAX))
6597
0
        {
6598
            /* Source file is too large for non-zip64 */
6599
            /*return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); */
6600
0
            pState->m_zip64 = MZ_TRUE;
6601
0
        }
6602
6603
        /* We could support this, but why? */
6604
0
        if (level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)
6605
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
6606
6607
0
        if (!mz_zip_writer_validate_archive_name(pArchive_name))
6608
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_FILENAME);
6609
6610
0
        if (pState->m_zip64)
6611
0
        {
6612
0
            if (pZip->m_total_files == MZ_UINT32_MAX)
6613
0
                return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
6614
0
        }
6615
0
        else
6616
0
        {
6617
0
            if (pZip->m_total_files == MZ_UINT16_MAX)
6618
0
            {
6619
0
                pState->m_zip64 = MZ_TRUE;
6620
                /*return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES); */
6621
0
            }
6622
0
        }
6623
6624
0
        archive_name_size = strlen(pArchive_name);
6625
0
        if (archive_name_size > MZ_UINT16_MAX)
6626
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_FILENAME);
6627
6628
0
        num_alignment_padding_bytes = mz_zip_writer_compute_padding_needed_for_file_alignment(pZip);
6629
6630
        /* miniz doesn't support central dirs >= MZ_UINT32_MAX bytes yet */
6631
0
        if (((mz_uint64)pState->m_central_dir.m_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size + MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE + comment_size) >= MZ_UINT32_MAX)
6632
0
            return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE);
6633
6634
0
        if (!pState->m_zip64)
6635
0
        {
6636
            /* Bail early if the archive would obviously become too large */
6637
0
            if ((pZip->m_archive_size + num_alignment_padding_bytes + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + archive_name_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size + comment_size + user_extra_data_len + pState->m_central_dir.m_size + MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE + 1024 + MZ_ZIP_DATA_DESCRIPTER_SIZE32 + user_extra_data_central_len) > 0xFFFFFFFF)
6638
0
            {
6639
0
                pState->m_zip64 = MZ_TRUE;
6640
                /*return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); */
6641
0
            }
6642
0
        }
6643
6644
0
#ifndef MINIZ_NO_TIME
6645
0
        if (pFile_time)
6646
0
        {
6647
0
            mz_zip_time_t_to_dos_time(*pFile_time, &dos_time, &dos_date);
6648
0
        }
6649
#else
6650
        (void)pFile_time;
6651
#endif
6652
6653
0
        if (max_size <= 3)
6654
0
            level = 0;
6655
6656
0
        if (!mz_zip_writer_write_zeros(pZip, cur_archive_file_ofs, num_alignment_padding_bytes))
6657
0
        {
6658
0
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
6659
0
        }
6660
6661
0
        cur_archive_file_ofs += num_alignment_padding_bytes;
6662
0
        local_dir_header_ofs = cur_archive_file_ofs;
6663
6664
0
        if (pZip->m_file_offset_alignment)
6665
0
        {
6666
0
            MZ_ASSERT((cur_archive_file_ofs & (pZip->m_file_offset_alignment - 1)) == 0);
6667
0
        }
6668
6669
0
        if (max_size && level)
6670
0
        {
6671
0
            method = MZ_DEFLATED;
6672
0
        }
6673
6674
0
        MZ_CLEAR_ARR(local_dir_header);
6675
0
        if (pState->m_zip64)
6676
0
        {
6677
0
            if (max_size >= MZ_UINT32_MAX || local_dir_header_ofs >= MZ_UINT32_MAX)
6678
0
            {
6679
0
                pExtra_data = extra_data;
6680
0
                if (level_and_flags & MZ_ZIP_FLAG_WRITE_HEADER_SET_SIZE)
6681
0
                    extra_size = mz_zip_writer_create_zip64_extra_data(extra_data, (max_size >= MZ_UINT32_MAX) ? &uncomp_size : NULL,
6682
0
                                                                       (max_size >= MZ_UINT32_MAX) ? &comp_size : NULL,
6683
0
                                                                       (local_dir_header_ofs >= MZ_UINT32_MAX) ? &local_dir_header_ofs : NULL);
6684
0
                else
6685
0
                    extra_size = mz_zip_writer_create_zip64_extra_data(extra_data, NULL,
6686
0
                                                                       NULL,
6687
0
                                                                       (local_dir_header_ofs >= MZ_UINT32_MAX) ? &local_dir_header_ofs : NULL);
6688
0
            }
6689
6690
0
            if (!mz_zip_writer_create_local_dir_header(pZip, local_dir_header, (mz_uint16)archive_name_size, (mz_uint16)(extra_size + user_extra_data_len), 0, 0, 0, method, gen_flags, dos_time, dos_date))
6691
0
                return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
6692
6693
0
            if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, local_dir_header, sizeof(local_dir_header)) != sizeof(local_dir_header))
6694
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
6695
6696
0
            cur_archive_file_ofs += sizeof(local_dir_header);
6697
6698
0
            if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pArchive_name, archive_name_size) != archive_name_size)
6699
0
            {
6700
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
6701
0
            }
6702
6703
0
            cur_archive_file_ofs += archive_name_size;
6704
6705
0
            if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, extra_data, extra_size) != extra_size)
6706
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
6707
6708
0
            cur_archive_file_ofs += extra_size;
6709
0
        }
6710
0
        else
6711
0
        {
6712
0
            if ((comp_size > MZ_UINT32_MAX) || (cur_archive_file_ofs > MZ_UINT32_MAX))
6713
0
                return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
6714
0
            if (!mz_zip_writer_create_local_dir_header(pZip, local_dir_header, (mz_uint16)archive_name_size, (mz_uint16)user_extra_data_len, 0, 0, 0, method, gen_flags, dos_time, dos_date))
6715
0
                return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
6716
6717
0
            if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, local_dir_header, sizeof(local_dir_header)) != sizeof(local_dir_header))
6718
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
6719
6720
0
            cur_archive_file_ofs += sizeof(local_dir_header);
6721
6722
0
            if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pArchive_name, archive_name_size) != archive_name_size)
6723
0
            {
6724
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
6725
0
            }
6726
6727
0
            cur_archive_file_ofs += archive_name_size;
6728
0
        }
6729
6730
0
        if (user_extra_data_len > 0)
6731
0
        {
6732
0
            if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, user_extra_data, user_extra_data_len) != user_extra_data_len)
6733
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
6734
6735
0
            cur_archive_file_ofs += user_extra_data_len;
6736
0
        }
6737
6738
0
        if (max_size)
6739
0
        {
6740
0
            void *pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, MZ_ZIP_MAX_IO_BUF_SIZE);
6741
0
            if (!pRead_buf)
6742
0
            {
6743
0
                return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
6744
0
            }
6745
6746
0
            if (!level)
6747
0
            {
6748
0
                while (1)
6749
0
                {
6750
0
                    size_t n = read_callback(callback_opaque, file_ofs, pRead_buf, MZ_ZIP_MAX_IO_BUF_SIZE);
6751
0
                    if (n == 0)
6752
0
                        break;
6753
6754
0
                    if ((n > MZ_ZIP_MAX_IO_BUF_SIZE) || (file_ofs + n > max_size))
6755
0
                    {
6756
0
                        pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
6757
0
                        return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
6758
0
                    }
6759
0
                    if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pRead_buf, n) != n)
6760
0
                    {
6761
0
                        pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
6762
0
                        return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
6763
0
                    }
6764
0
                    file_ofs += n;
6765
0
                    uncomp_crc32 = (mz_uint32)mz_crc32(uncomp_crc32, (const mz_uint8 *)pRead_buf, n);
6766
0
                    cur_archive_file_ofs += n;
6767
0
                }
6768
0
                uncomp_size = file_ofs;
6769
0
                comp_size = uncomp_size;
6770
0
            }
6771
0
            else
6772
0
            {
6773
0
                mz_bool result = MZ_FALSE;
6774
0
                mz_zip_writer_add_state state;
6775
0
                tdefl_compressor *pComp = (tdefl_compressor *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(tdefl_compressor));
6776
0
                if (!pComp)
6777
0
                {
6778
0
                    pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
6779
0
                    return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
6780
0
                }
6781
6782
0
                state.m_pZip = pZip;
6783
0
                state.m_cur_archive_file_ofs = cur_archive_file_ofs;
6784
0
                state.m_comp_size = 0;
6785
6786
0
                if (tdefl_init(pComp, mz_zip_writer_add_put_buf_callback, &state, tdefl_create_comp_flags_from_zip_params(level, -15, MZ_DEFAULT_STRATEGY)) != TDEFL_STATUS_OKAY)
6787
0
                {
6788
0
                    pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
6789
0
                    pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
6790
0
                    return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
6791
0
                }
6792
6793
0
                for (;;)
6794
0
                {
6795
0
                    tdefl_status status;
6796
0
                    tdefl_flush flush = TDEFL_NO_FLUSH;
6797
6798
0
                    size_t n = read_callback(callback_opaque, file_ofs, pRead_buf, MZ_ZIP_MAX_IO_BUF_SIZE);
6799
0
                    if ((n > MZ_ZIP_MAX_IO_BUF_SIZE) || (file_ofs + n > max_size))
6800
0
                    {
6801
0
                        mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
6802
0
                        break;
6803
0
                    }
6804
6805
0
                    file_ofs += n;
6806
0
                    uncomp_crc32 = (mz_uint32)mz_crc32(uncomp_crc32, (const mz_uint8 *)pRead_buf, n);
6807
6808
0
                    if (pZip->m_pNeeds_keepalive != NULL && pZip->m_pNeeds_keepalive(pZip->m_pIO_opaque))
6809
0
                        flush = TDEFL_FULL_FLUSH;
6810
6811
0
                    if (n == 0)
6812
0
                        flush = TDEFL_FINISH;
6813
6814
0
                    status = tdefl_compress_buffer(pComp, pRead_buf, n, flush);
6815
0
                    if (status == TDEFL_STATUS_DONE)
6816
0
                    {
6817
0
                        result = MZ_TRUE;
6818
0
                        break;
6819
0
                    }
6820
0
                    else if (status != TDEFL_STATUS_OKAY)
6821
0
                    {
6822
0
                        mz_zip_set_error(pZip, MZ_ZIP_COMPRESSION_FAILED);
6823
0
                        break;
6824
0
                    }
6825
0
                }
6826
6827
0
                pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
6828
6829
0
                if (!result)
6830
0
                {
6831
0
                    pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
6832
0
                    return MZ_FALSE;
6833
0
                }
6834
6835
0
                uncomp_size = file_ofs;
6836
0
                comp_size = state.m_comp_size;
6837
0
                cur_archive_file_ofs = state.m_cur_archive_file_ofs;
6838
0
            }
6839
6840
0
            pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
6841
0
        }
6842
6843
0
        if (!(level_and_flags & MZ_ZIP_FLAG_WRITE_HEADER_SET_SIZE))
6844
0
        {
6845
0
            mz_uint8 local_dir_footer[MZ_ZIP_DATA_DESCRIPTER_SIZE64];
6846
0
            mz_uint32 local_dir_footer_size = MZ_ZIP_DATA_DESCRIPTER_SIZE32;
6847
6848
0
            MZ_WRITE_LE32(local_dir_footer + 0, MZ_ZIP_DATA_DESCRIPTOR_ID);
6849
0
            MZ_WRITE_LE32(local_dir_footer + 4, uncomp_crc32);
6850
0
            if (pExtra_data == NULL)
6851
0
            {
6852
0
                if (comp_size > MZ_UINT32_MAX)
6853
0
                    return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
6854
6855
0
                MZ_WRITE_LE32(local_dir_footer + 8, comp_size);
6856
0
                MZ_WRITE_LE32(local_dir_footer + 12, uncomp_size);
6857
0
            }
6858
0
            else
6859
0
            {
6860
0
                MZ_WRITE_LE64(local_dir_footer + 8, comp_size);
6861
0
                MZ_WRITE_LE64(local_dir_footer + 16, uncomp_size);
6862
0
                local_dir_footer_size = MZ_ZIP_DATA_DESCRIPTER_SIZE64;
6863
0
            }
6864
6865
0
            if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, local_dir_footer, local_dir_footer_size) != local_dir_footer_size)
6866
0
                return MZ_FALSE;
6867
6868
0
            cur_archive_file_ofs += local_dir_footer_size;
6869
0
        }
6870
6871
0
        if (level_and_flags & MZ_ZIP_FLAG_WRITE_HEADER_SET_SIZE)
6872
0
        {
6873
0
            if (pExtra_data != NULL)
6874
0
            {
6875
0
                extra_size = mz_zip_writer_create_zip64_extra_data(extra_data, (max_size >= MZ_UINT32_MAX) ? &uncomp_size : NULL,
6876
0
                                                                   (max_size >= MZ_UINT32_MAX) ? &comp_size : NULL, (local_dir_header_ofs >= MZ_UINT32_MAX) ? &local_dir_header_ofs : NULL);
6877
0
            }
6878
6879
0
            if (!mz_zip_writer_create_local_dir_header(pZip, local_dir_header,
6880
0
                                                       (mz_uint16)archive_name_size, (mz_uint16)(extra_size + user_extra_data_len),
6881
0
                                                       (max_size >= MZ_UINT32_MAX) ? MZ_UINT32_MAX : uncomp_size,
6882
0
                                                       (max_size >= MZ_UINT32_MAX) ? MZ_UINT32_MAX : comp_size,
6883
0
                                                       uncomp_crc32, method, gen_flags, dos_time, dos_date))
6884
0
                return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
6885
6886
0
            cur_archive_header_file_ofs = local_dir_header_ofs;
6887
6888
0
            if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_header_file_ofs, local_dir_header, sizeof(local_dir_header)) != sizeof(local_dir_header))
6889
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
6890
6891
0
            if (pExtra_data != NULL)
6892
0
            {
6893
0
                cur_archive_header_file_ofs += sizeof(local_dir_header);
6894
6895
0
                if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_header_file_ofs, pArchive_name, archive_name_size) != archive_name_size)
6896
0
                {
6897
0
                    return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
6898
0
                }
6899
6900
0
                cur_archive_header_file_ofs += archive_name_size;
6901
6902
0
                if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_header_file_ofs, extra_data, extra_size) != extra_size)
6903
0
                    return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
6904
6905
0
                cur_archive_header_file_ofs += extra_size;
6906
0
            }
6907
0
        }
6908
6909
0
        if (pExtra_data != NULL)
6910
0
        {
6911
0
            extra_size = mz_zip_writer_create_zip64_extra_data(extra_data, (uncomp_size >= MZ_UINT32_MAX) ? &uncomp_size : NULL,
6912
0
                                                               (uncomp_size >= MZ_UINT32_MAX) ? &comp_size : NULL, (local_dir_header_ofs >= MZ_UINT32_MAX) ? &local_dir_header_ofs : NULL);
6913
0
        }
6914
6915
0
        if (!mz_zip_writer_add_to_central_dir(pZip, pArchive_name, (mz_uint16)archive_name_size, pExtra_data, (mz_uint16)extra_size, pComment, comment_size,
6916
0
                                              uncomp_size, comp_size, uncomp_crc32, method, gen_flags, dos_time, dos_date, local_dir_header_ofs, ext_attributes,
6917
0
                                              user_extra_data_central, user_extra_data_central_len))
6918
0
            return MZ_FALSE;
6919
6920
0
        pZip->m_total_files++;
6921
0
        pZip->m_archive_size = cur_archive_file_ofs;
6922
6923
0
        return MZ_TRUE;
6924
0
    }
6925
6926
#ifndef MINIZ_NO_STDIO
6927
6928
    static size_t mz_file_read_func_stdio(void *pOpaque, mz_uint64 file_ofs, void *pBuf, size_t n)
6929
0
    {
6930
0
        MZ_FILE *pSrc_file = (MZ_FILE *)pOpaque;
6931
0
        mz_int64 cur_ofs = MZ_FTELL64(pSrc_file);
6932
6933
0
        if (((mz_int64)file_ofs < 0) || (((cur_ofs != (mz_int64)file_ofs)) && (MZ_FSEEK64(pSrc_file, (mz_int64)file_ofs, SEEK_SET))))
6934
0
            return 0;
6935
6936
0
        return MZ_FREAD(pBuf, 1, n, pSrc_file);
6937
0
    }
6938
6939
    mz_bool mz_zip_writer_add_cfile(mz_zip_archive *pZip, const char *pArchive_name, MZ_FILE *pSrc_file, mz_uint64 max_size, const MZ_TIME_T *pFile_time, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags,
6940
                                    const char *user_extra_data, mz_uint user_extra_data_len, const char *user_extra_data_central, mz_uint user_extra_data_central_len)
6941
0
    {
6942
0
        return mz_zip_writer_add_read_buf_callback(pZip, pArchive_name, mz_file_read_func_stdio, pSrc_file, max_size, pFile_time, pComment, comment_size, level_and_flags,
6943
0
                                                   user_extra_data, user_extra_data_len, user_extra_data_central, user_extra_data_central_len);
6944
0
    }
6945
6946
    mz_bool mz_zip_writer_add_file(mz_zip_archive *pZip, const char *pArchive_name, const char *pSrc_filename, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags)
6947
0
    {
6948
0
        MZ_FILE *pSrc_file = NULL;
6949
0
        mz_uint64 uncomp_size = 0;
6950
0
        MZ_TIME_T file_modified_time;
6951
0
        MZ_TIME_T *pFile_time = NULL;
6952
0
        mz_bool status;
6953
6954
0
        memset(&file_modified_time, 0, sizeof(file_modified_time));
6955
6956
0
#if !defined(MINIZ_NO_TIME) && !defined(MINIZ_NO_STDIO)
6957
0
        pFile_time = &file_modified_time;
6958
0
        if (!mz_zip_get_file_modified_time(pSrc_filename, &file_modified_time))
6959
0
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_STAT_FAILED);
6960
0
#endif
6961
6962
0
        pSrc_file = MZ_FOPEN(pSrc_filename, "rb");
6963
0
        if (!pSrc_file)
6964
0
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED);
6965
6966
0
        MZ_FSEEK64(pSrc_file, 0, SEEK_END);
6967
0
        uncomp_size = MZ_FTELL64(pSrc_file);
6968
0
        MZ_FSEEK64(pSrc_file, 0, SEEK_SET);
6969
6970
0
        status = mz_zip_writer_add_cfile(pZip, pArchive_name, pSrc_file, uncomp_size, pFile_time, pComment, comment_size, level_and_flags, NULL, 0, NULL, 0);
6971
6972
0
        MZ_FCLOSE(pSrc_file);
6973
6974
0
        return status;
6975
0
    }
6976
#endif /* #ifndef MINIZ_NO_STDIO */
6977
6978
    static mz_bool mz_zip_writer_update_zip64_extension_block(mz_zip_array *pNew_ext, mz_zip_archive *pZip, const mz_uint8 *pExt, mz_uint32 ext_len, mz_uint64 *pComp_size, mz_uint64 *pUncomp_size, mz_uint64 *pLocal_header_ofs, mz_uint32 *pDisk_start)
6979
0
    {
6980
        /* + 64 should be enough for any new zip64 data */
6981
0
        if (!mz_zip_array_reserve(pZip, pNew_ext, ext_len + 64, MZ_FALSE))
6982
0
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
6983
6984
0
        mz_zip_array_resize(pZip, pNew_ext, 0, MZ_FALSE);
6985
6986
0
        if ((pUncomp_size) || (pComp_size) || (pLocal_header_ofs) || (pDisk_start))
6987
0
        {
6988
0
            mz_uint8 new_ext_block[64];
6989
0
            mz_uint8 *pDst = new_ext_block;
6990
0
            mz_write_le16(pDst, MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID);
6991
0
            mz_write_le16(pDst + sizeof(mz_uint16), 0);
6992
0
            pDst += sizeof(mz_uint16) * 2;
6993
6994
0
            if (pUncomp_size)
6995
0
            {
6996
0
                mz_write_le64(pDst, *pUncomp_size);
6997
0
                pDst += sizeof(mz_uint64);
6998
0
            }
6999
7000
0
            if (pComp_size)
7001
0
            {
7002
0
                mz_write_le64(pDst, *pComp_size);
7003
0
                pDst += sizeof(mz_uint64);
7004
0
            }
7005
7006
0
            if (pLocal_header_ofs)
7007
0
            {
7008
0
                mz_write_le64(pDst, *pLocal_header_ofs);
7009
0
                pDst += sizeof(mz_uint64);
7010
0
            }
7011
7012
0
            if (pDisk_start)
7013
0
            {
7014
0
                mz_write_le32(pDst, *pDisk_start);
7015
0
                pDst += sizeof(mz_uint32);
7016
0
            }
7017
7018
0
            mz_write_le16(new_ext_block + sizeof(mz_uint16), (mz_uint16)((pDst - new_ext_block) - sizeof(mz_uint16) * 2));
7019
7020
0
            if (!mz_zip_array_push_back(pZip, pNew_ext, new_ext_block, pDst - new_ext_block))
7021
0
                return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
7022
0
        }
7023
7024
0
        if ((pExt) && (ext_len))
7025
0
        {
7026
0
            mz_uint32 extra_size_remaining = ext_len;
7027
0
            const mz_uint8 *pExtra_data = pExt;
7028
7029
0
            do
7030
0
            {
7031
0
                mz_uint32 field_id, field_data_size, field_total_size;
7032
7033
0
                if (extra_size_remaining < (sizeof(mz_uint16) * 2))
7034
0
                    return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
7035
7036
0
                field_id = MZ_READ_LE16(pExtra_data);
7037
0
                field_data_size = MZ_READ_LE16(pExtra_data + sizeof(mz_uint16));
7038
0
                field_total_size = field_data_size + sizeof(mz_uint16) * 2;
7039
7040
0
                if (field_total_size > extra_size_remaining)
7041
0
                    return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
7042
7043
0
                if (field_id != MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID)
7044
0
                {
7045
0
                    if (!mz_zip_array_push_back(pZip, pNew_ext, pExtra_data, field_total_size))
7046
0
                        return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
7047
0
                }
7048
7049
0
                pExtra_data += field_total_size;
7050
0
                extra_size_remaining -= field_total_size;
7051
0
            } while (extra_size_remaining);
7052
0
        }
7053
7054
0
        return MZ_TRUE;
7055
0
    }
7056
7057
    /* TODO: This func is now pretty freakin complex due to zip64, split it up? */
7058
    mz_bool mz_zip_writer_add_from_zip_reader(mz_zip_archive *pZip, mz_zip_archive *pSource_zip, mz_uint src_file_index)
7059
0
    {
7060
0
        mz_uint n, bit_flags, num_alignment_padding_bytes, src_central_dir_following_data_size;
7061
0
        mz_uint64 src_archive_bytes_remaining, local_dir_header_ofs;
7062
0
        mz_uint64 cur_src_file_ofs, cur_dst_file_ofs;
7063
0
        mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)];
7064
0
        mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32;
7065
0
        mz_uint8 new_central_header[MZ_ZIP_CENTRAL_DIR_HEADER_SIZE];
7066
0
        size_t orig_central_dir_size;
7067
0
        mz_zip_internal_state *pState;
7068
0
        void *pBuf;
7069
0
        const mz_uint8 *pSrc_central_header;
7070
0
        mz_zip_archive_file_stat src_file_stat;
7071
0
        mz_uint32 src_filename_len, src_comment_len, src_ext_len;
7072
0
        mz_uint32 local_header_filename_size, local_header_extra_len;
7073
0
        mz_uint64 local_header_comp_size, local_header_uncomp_size;
7074
0
        mz_bool found_zip64_ext_data_in_ldir = MZ_FALSE;
7075
7076
        /* Sanity checks */
7077
0
        if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) || (!pSource_zip->m_pRead))
7078
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
7079
7080
0
        pState = pZip->m_pState;
7081
7082
        /* Don't support copying files from zip64 archives to non-zip64, even though in some cases this is possible */
7083
0
        if ((pSource_zip->m_pState->m_zip64) && (!pZip->m_pState->m_zip64))
7084
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
7085
7086
        /* Get pointer to the source central dir header and crack it */
7087
0
        if (NULL == (pSrc_central_header = mz_zip_get_cdh(pSource_zip, src_file_index)))
7088
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
7089
7090
0
        if (MZ_READ_LE32(pSrc_central_header + MZ_ZIP_CDH_SIG_OFS) != MZ_ZIP_CENTRAL_DIR_HEADER_SIG)
7091
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
7092
7093
0
        src_filename_len = MZ_READ_LE16(pSrc_central_header + MZ_ZIP_CDH_FILENAME_LEN_OFS);
7094
0
        src_comment_len = MZ_READ_LE16(pSrc_central_header + MZ_ZIP_CDH_COMMENT_LEN_OFS);
7095
0
        src_ext_len = MZ_READ_LE16(pSrc_central_header + MZ_ZIP_CDH_EXTRA_LEN_OFS);
7096
0
        src_central_dir_following_data_size = src_filename_len + src_ext_len + src_comment_len;
7097
7098
        /* TODO: We don't support central dir's >= MZ_UINT32_MAX bytes right now (+32 fudge factor in case we need to add more extra data) */
7099
0
        if ((pState->m_central_dir.m_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + src_central_dir_following_data_size + 32) >= MZ_UINT32_MAX)
7100
0
            return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE);
7101
7102
0
        num_alignment_padding_bytes = mz_zip_writer_compute_padding_needed_for_file_alignment(pZip);
7103
7104
0
        if (!pState->m_zip64)
7105
0
        {
7106
0
            if (pZip->m_total_files == MZ_UINT16_MAX)
7107
0
                return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
7108
0
        }
7109
0
        else
7110
0
        {
7111
            /* TODO: Our zip64 support still has some 32-bit limits that may not be worth fixing. */
7112
0
            if (pZip->m_total_files == MZ_UINT32_MAX)
7113
0
                return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
7114
0
        }
7115
7116
0
        if (!mz_zip_file_stat_internal(pSource_zip, src_file_index, pSrc_central_header, &src_file_stat, NULL))
7117
0
            return MZ_FALSE;
7118
7119
0
        cur_src_file_ofs = src_file_stat.m_local_header_ofs;
7120
0
        cur_dst_file_ofs = pZip->m_archive_size;
7121
7122
        /* Read the source archive's local dir header */
7123
0
        if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
7124
0
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
7125
7126
0
        if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG)
7127
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
7128
7129
0
        cur_src_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE;
7130
7131
        /* Compute the total size we need to copy (filename+extra data+compressed data) */
7132
0
        local_header_filename_size = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS);
7133
0
        local_header_extra_len = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS);
7134
0
        local_header_comp_size = MZ_READ_LE32(pLocal_header + MZ_ZIP_LDH_COMPRESSED_SIZE_OFS);
7135
0
        local_header_uncomp_size = MZ_READ_LE32(pLocal_header + MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS);
7136
0
        src_archive_bytes_remaining = src_file_stat.m_comp_size + local_header_filename_size + local_header_extra_len;
7137
7138
        /* Try to find a zip64 extended information field */
7139
0
        if ((local_header_extra_len) && ((local_header_comp_size == MZ_UINT32_MAX) || (local_header_uncomp_size == MZ_UINT32_MAX)))
7140
0
        {
7141
0
            mz_zip_array file_data_array;
7142
0
            const mz_uint8 *pExtra_data;
7143
0
            mz_uint32 extra_size_remaining = local_header_extra_len;
7144
7145
0
            mz_zip_array_init(&file_data_array, 1);
7146
0
            if (!mz_zip_array_resize(pZip, &file_data_array, local_header_extra_len, MZ_FALSE))
7147
0
            {
7148
0
                return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
7149
0
            }
7150
7151
0
            if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, src_file_stat.m_local_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + local_header_filename_size, file_data_array.m_p, local_header_extra_len) != local_header_extra_len)
7152
0
            {
7153
0
                mz_zip_array_clear(pZip, &file_data_array);
7154
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
7155
0
            }
7156
7157
0
            pExtra_data = (const mz_uint8 *)file_data_array.m_p;
7158
7159
0
            do
7160
0
            {
7161
0
                mz_uint32 field_id, field_data_size, field_total_size;
7162
7163
0
                if (extra_size_remaining < (sizeof(mz_uint16) * 2))
7164
0
                {
7165
0
                    mz_zip_array_clear(pZip, &file_data_array);
7166
0
                    return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
7167
0
                }
7168
7169
0
                field_id = MZ_READ_LE16(pExtra_data);
7170
0
                field_data_size = MZ_READ_LE16(pExtra_data + sizeof(mz_uint16));
7171
0
                field_total_size = field_data_size + sizeof(mz_uint16) * 2;
7172
7173
0
                if (field_total_size > extra_size_remaining)
7174
0
                {
7175
0
                    mz_zip_array_clear(pZip, &file_data_array);
7176
0
                    return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
7177
0
                }
7178
7179
0
                if (field_id == MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID)
7180
0
                {
7181
0
                    const mz_uint8 *pSrc_field_data = pExtra_data + sizeof(mz_uint32);
7182
7183
0
                    if (field_data_size < sizeof(mz_uint64) * 2)
7184
0
                    {
7185
0
                        mz_zip_array_clear(pZip, &file_data_array);
7186
0
                        return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
7187
0
                    }
7188
7189
0
                    local_header_uncomp_size = MZ_READ_LE64(pSrc_field_data);
7190
0
                    local_header_comp_size = MZ_READ_LE64(pSrc_field_data + sizeof(mz_uint64)); /* may be 0 if there's a descriptor */
7191
7192
0
                    found_zip64_ext_data_in_ldir = MZ_TRUE;
7193
0
                    break;
7194
0
                }
7195
7196
0
                pExtra_data += field_total_size;
7197
0
                extra_size_remaining -= field_total_size;
7198
0
            } while (extra_size_remaining);
7199
7200
0
            mz_zip_array_clear(pZip, &file_data_array);
7201
0
        }
7202
7203
0
        if (!pState->m_zip64)
7204
0
        {
7205
            /* Try to detect if the new archive will most likely wind up too big and bail early (+(sizeof(mz_uint32) * 4) is for the optional descriptor which could be present, +64 is a fudge factor). */
7206
            /* We also check when the archive is finalized so this doesn't need to be perfect. */
7207
0
            mz_uint64 approx_new_archive_size = cur_dst_file_ofs + num_alignment_padding_bytes + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + src_archive_bytes_remaining + (sizeof(mz_uint32) * 4) +
7208
0
                                                pState->m_central_dir.m_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + src_central_dir_following_data_size + MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE + 64;
7209
7210
0
            if (approx_new_archive_size >= MZ_UINT32_MAX)
7211
0
                return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
7212
0
        }
7213
7214
        /* Write dest archive padding */
7215
0
        if (!mz_zip_writer_write_zeros(pZip, cur_dst_file_ofs, num_alignment_padding_bytes))
7216
0
            return MZ_FALSE;
7217
7218
0
        cur_dst_file_ofs += num_alignment_padding_bytes;
7219
7220
0
        local_dir_header_ofs = cur_dst_file_ofs;
7221
0
        if (pZip->m_file_offset_alignment)
7222
0
        {
7223
0
            MZ_ASSERT((local_dir_header_ofs & (pZip->m_file_offset_alignment - 1)) == 0);
7224
0
        }
7225
7226
        /* The original zip's local header+ext block doesn't change, even with zip64, so we can just copy it over to the dest zip */
7227
0
        if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
7228
0
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
7229
7230
0
        cur_dst_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE;
7231
7232
        /* Copy over the source archive bytes to the dest archive, also ensure we have enough buf space to handle optional data descriptor */
7233
0
        if (NULL == (pBuf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)MZ_MAX(32U, MZ_MIN((mz_uint64)MZ_ZIP_MAX_IO_BUF_SIZE, src_archive_bytes_remaining)))))
7234
0
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
7235
7236
0
        while (src_archive_bytes_remaining)
7237
0
        {
7238
0
            n = (mz_uint)MZ_MIN((mz_uint64)MZ_ZIP_MAX_IO_BUF_SIZE, src_archive_bytes_remaining);
7239
0
            if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pBuf, n) != n)
7240
0
            {
7241
0
                pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
7242
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
7243
0
            }
7244
0
            cur_src_file_ofs += n;
7245
7246
0
            if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pBuf, n) != n)
7247
0
            {
7248
0
                pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
7249
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
7250
0
            }
7251
0
            cur_dst_file_ofs += n;
7252
7253
0
            src_archive_bytes_remaining -= n;
7254
0
        }
7255
7256
        /* Now deal with the optional data descriptor */
7257
0
        bit_flags = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_BIT_FLAG_OFS);
7258
0
        if (bit_flags & 8)
7259
0
        {
7260
            /* Copy data descriptor */
7261
0
            if ((pSource_zip->m_pState->m_zip64) || (found_zip64_ext_data_in_ldir))
7262
0
            {
7263
                /* src is zip64, dest must be zip64 */
7264
7265
                /* name     uint32_t's */
7266
                /* id       1 (optional in zip64?) */
7267
                /* crc      1 */
7268
                /* comp_size  2 */
7269
                /* uncomp_size 2 */
7270
0
                if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pBuf, (sizeof(mz_uint32) * 6)) != (sizeof(mz_uint32) * 6))
7271
0
                {
7272
0
                    pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
7273
0
                    return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
7274
0
                }
7275
7276
0
                n = sizeof(mz_uint32) * ((MZ_READ_LE32(pBuf) == MZ_ZIP_DATA_DESCRIPTOR_ID) ? 6 : 5);
7277
0
            }
7278
0
            else
7279
0
            {
7280
                /* src is NOT zip64 */
7281
0
                mz_bool has_id;
7282
7283
0
                if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pBuf, sizeof(mz_uint32) * 4) != sizeof(mz_uint32) * 4)
7284
0
                {
7285
0
                    pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
7286
0
                    return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
7287
0
                }
7288
7289
0
                has_id = (MZ_READ_LE32(pBuf) == MZ_ZIP_DATA_DESCRIPTOR_ID);
7290
7291
0
                if (pZip->m_pState->m_zip64)
7292
0
                {
7293
                    /* dest is zip64, so upgrade the data descriptor */
7294
0
                    const mz_uint8 *pSrc_descriptor = (const mz_uint8 *)pBuf + (has_id ? sizeof(mz_uint32) : 0);
7295
0
                    const mz_uint32 src_crc32 = MZ_READ_LE32(pSrc_descriptor);
7296
0
                    const mz_uint64 src_comp_size = MZ_READ_LE32(pSrc_descriptor + sizeof(mz_uint32));
7297
0
                    const mz_uint64 src_uncomp_size = MZ_READ_LE32(pSrc_descriptor + 2 * sizeof(mz_uint32));
7298
7299
0
                    mz_write_le32((mz_uint8 *)pBuf, MZ_ZIP_DATA_DESCRIPTOR_ID);
7300
0
                    mz_write_le32((mz_uint8 *)pBuf + sizeof(mz_uint32) * 1, src_crc32);
7301
0
                    mz_write_le64((mz_uint8 *)pBuf + sizeof(mz_uint32) * 2, src_comp_size);
7302
0
                    mz_write_le64((mz_uint8 *)pBuf + sizeof(mz_uint32) * 4, src_uncomp_size);
7303
7304
0
                    n = sizeof(mz_uint32) * 6;
7305
0
                }
7306
0
                else
7307
0
                {
7308
                    /* dest is NOT zip64, just copy it as-is */
7309
0
                    n = sizeof(mz_uint32) * (has_id ? 4 : 3);
7310
0
                }
7311
0
            }
7312
7313
0
            if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pBuf, n) != n)
7314
0
            {
7315
0
                pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
7316
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
7317
0
            }
7318
7319
0
            cur_src_file_ofs += n;
7320
0
            cur_dst_file_ofs += n;
7321
0
        }
7322
0
        pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
7323
7324
        /* Finally, add the new central dir header */
7325
0
        orig_central_dir_size = pState->m_central_dir.m_size;
7326
7327
0
        memcpy(new_central_header, pSrc_central_header, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE);
7328
7329
0
        if (pState->m_zip64)
7330
0
        {
7331
            /* This is the painful part: We need to write a new central dir header + ext block with updated zip64 fields, and ensure the old fields (if any) are not included. */
7332
0
            const mz_uint8 *pSrc_ext = pSrc_central_header + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + src_filename_len;
7333
0
            mz_zip_array new_ext_block;
7334
7335
0
            mz_zip_array_init(&new_ext_block, sizeof(mz_uint8));
7336
7337
0
            MZ_WRITE_LE32(new_central_header + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS, MZ_UINT32_MAX);
7338
0
            MZ_WRITE_LE32(new_central_header + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS, MZ_UINT32_MAX);
7339
0
            MZ_WRITE_LE32(new_central_header + MZ_ZIP_CDH_LOCAL_HEADER_OFS, MZ_UINT32_MAX);
7340
7341
0
            if (!mz_zip_writer_update_zip64_extension_block(&new_ext_block, pZip, pSrc_ext, src_ext_len, &src_file_stat.m_comp_size, &src_file_stat.m_uncomp_size, &local_dir_header_ofs, NULL))
7342
0
            {
7343
0
                mz_zip_array_clear(pZip, &new_ext_block);
7344
0
                return MZ_FALSE;
7345
0
            }
7346
7347
0
            MZ_WRITE_LE16(new_central_header + MZ_ZIP_CDH_EXTRA_LEN_OFS, new_ext_block.m_size);
7348
7349
0
            if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, new_central_header, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE))
7350
0
            {
7351
0
                mz_zip_array_clear(pZip, &new_ext_block);
7352
0
                return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
7353
0
            }
7354
7355
0
            if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pSrc_central_header + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, src_filename_len))
7356
0
            {
7357
0
                mz_zip_array_clear(pZip, &new_ext_block);
7358
0
                mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE);
7359
0
                return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
7360
0
            }
7361
7362
0
            if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, new_ext_block.m_p, new_ext_block.m_size))
7363
0
            {
7364
0
                mz_zip_array_clear(pZip, &new_ext_block);
7365
0
                mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE);
7366
0
                return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
7367
0
            }
7368
7369
0
            if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pSrc_central_header + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + src_filename_len + src_ext_len, src_comment_len))
7370
0
            {
7371
0
                mz_zip_array_clear(pZip, &new_ext_block);
7372
0
                mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE);
7373
0
                return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
7374
0
            }
7375
7376
0
            mz_zip_array_clear(pZip, &new_ext_block);
7377
0
        }
7378
0
        else
7379
0
        {
7380
            /* sanity checks */
7381
0
            if (cur_dst_file_ofs > MZ_UINT32_MAX)
7382
0
                return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
7383
7384
0
            if (local_dir_header_ofs >= MZ_UINT32_MAX)
7385
0
                return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
7386
7387
0
            MZ_WRITE_LE32(new_central_header + MZ_ZIP_CDH_LOCAL_HEADER_OFS, local_dir_header_ofs);
7388
7389
0
            if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, new_central_header, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE))
7390
0
                return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
7391
7392
0
            if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pSrc_central_header + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, src_central_dir_following_data_size))
7393
0
            {
7394
0
                mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE);
7395
0
                return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
7396
0
            }
7397
0
        }
7398
7399
        /* This shouldn't trigger unless we screwed up during the initial sanity checks */
7400
0
        if (pState->m_central_dir.m_size >= MZ_UINT32_MAX)
7401
0
        {
7402
            /* TODO: Support central dirs >= 32-bits in size */
7403
0
            mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE);
7404
0
            return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE);
7405
0
        }
7406
7407
0
        n = (mz_uint32)orig_central_dir_size;
7408
0
        if (!mz_zip_array_push_back(pZip, &pState->m_central_dir_offsets, &n, 1))
7409
0
        {
7410
0
            mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE);
7411
0
            return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
7412
0
        }
7413
7414
0
        pZip->m_total_files++;
7415
0
        pZip->m_archive_size = cur_dst_file_ofs;
7416
7417
0
        return MZ_TRUE;
7418
0
    }
7419
7420
    mz_bool mz_zip_writer_finalize_archive(mz_zip_archive *pZip)
7421
5.48k
    {
7422
5.48k
        mz_zip_internal_state *pState;
7423
5.48k
        mz_uint64 central_dir_ofs, central_dir_size;
7424
5.48k
        mz_uint8 hdr[256];
7425
7426
5.48k
        if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING))
7427
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
7428
7429
5.48k
        pState = pZip->m_pState;
7430
7431
5.48k
        if (pState->m_zip64)
7432
756
        {
7433
756
            if ((mz_uint64)pState->m_central_dir.m_size >= MZ_UINT32_MAX)
7434
0
                return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
7435
756
        }
7436
4.72k
        else
7437
4.72k
        {
7438
4.72k
            if ((pZip->m_total_files > MZ_UINT16_MAX) || ((pZip->m_archive_size + pState->m_central_dir.m_size + MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) > MZ_UINT32_MAX))
7439
0
                return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
7440
4.72k
        }
7441
7442
5.48k
        central_dir_ofs = 0;
7443
5.48k
        central_dir_size = 0;
7444
5.48k
        if (pZip->m_total_files)
7445
5.45k
        {
7446
            /* Write central directory */
7447
5.45k
            central_dir_ofs = pZip->m_archive_size;
7448
5.45k
            central_dir_size = pState->m_central_dir.m_size;
7449
5.45k
            pZip->m_central_directory_file_ofs = central_dir_ofs;
7450
5.45k
            if (pZip->m_pWrite(pZip->m_pIO_opaque, central_dir_ofs, pState->m_central_dir.m_p, (size_t)central_dir_size) != central_dir_size)
7451
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
7452
7453
5.45k
            pZip->m_archive_size += central_dir_size;
7454
5.45k
        }
7455
7456
5.48k
        if (pState->m_zip64)
7457
756
        {
7458
            /* Write zip64 end of central directory header */
7459
756
            mz_uint64 rel_ofs_to_zip64_ecdr = pZip->m_archive_size;
7460
7461
756
            MZ_CLEAR_ARR(hdr);
7462
756
            MZ_WRITE_LE32(hdr + MZ_ZIP64_ECDH_SIG_OFS, MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIG);
7463
756
            MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_SIZE_OF_RECORD_OFS, MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE - sizeof(mz_uint32) - sizeof(mz_uint64));
7464
756
            MZ_WRITE_LE16(hdr + MZ_ZIP64_ECDH_VERSION_MADE_BY_OFS, 0x031E); /* TODO: always Unix */
7465
756
            MZ_WRITE_LE16(hdr + MZ_ZIP64_ECDH_VERSION_NEEDED_OFS, 0x002D);
7466
756
            MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS, pZip->m_total_files);
7467
756
            MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_CDIR_TOTAL_ENTRIES_OFS, pZip->m_total_files);
7468
756
            MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_CDIR_SIZE_OFS, central_dir_size);
7469
756
            MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_CDIR_OFS_OFS, central_dir_ofs);
7470
756
            if (pZip->m_pWrite(pZip->m_pIO_opaque, pZip->m_archive_size, hdr, MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE) != MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE)
7471
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
7472
7473
756
            pZip->m_archive_size += MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE;
7474
7475
            /* Write zip64 end of central directory locator */
7476
756
            MZ_CLEAR_ARR(hdr);
7477
756
            MZ_WRITE_LE32(hdr + MZ_ZIP64_ECDL_SIG_OFS, MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIG);
7478
756
            MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDL_REL_OFS_TO_ZIP64_ECDR_OFS, rel_ofs_to_zip64_ecdr);
7479
756
            MZ_WRITE_LE32(hdr + MZ_ZIP64_ECDL_TOTAL_NUMBER_OF_DISKS_OFS, 1);
7480
756
            if (pZip->m_pWrite(pZip->m_pIO_opaque, pZip->m_archive_size, hdr, MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE) != MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE)
7481
0
                return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
7482
7483
756
            pZip->m_archive_size += MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE;
7484
756
        }
7485
7486
        /* Write end of central directory record */
7487
5.48k
        MZ_CLEAR_ARR(hdr);
7488
5.48k
        MZ_WRITE_LE32(hdr + MZ_ZIP_ECDH_SIG_OFS, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG);
7489
5.48k
        MZ_WRITE_LE16(hdr + MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS, MZ_MIN(MZ_UINT16_MAX, pZip->m_total_files));
7490
5.48k
        MZ_WRITE_LE16(hdr + MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS, MZ_MIN(MZ_UINT16_MAX, pZip->m_total_files));
7491
5.48k
        MZ_WRITE_LE32(hdr + MZ_ZIP_ECDH_CDIR_SIZE_OFS, MZ_MIN(MZ_UINT32_MAX, central_dir_size));
7492
5.48k
        MZ_WRITE_LE32(hdr + MZ_ZIP_ECDH_CDIR_OFS_OFS, MZ_MIN(MZ_UINT32_MAX, central_dir_ofs));
7493
7494
5.48k
        if (pZip->m_pWrite(pZip->m_pIO_opaque, pZip->m_archive_size, hdr, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) != MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
7495
0
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
7496
7497
5.48k
#ifndef MINIZ_NO_STDIO
7498
5.48k
        if ((pState->m_pFile) && (MZ_FFLUSH(pState->m_pFile) == EOF))
7499
0
            return mz_zip_set_error(pZip, MZ_ZIP_FILE_CLOSE_FAILED);
7500
5.48k
#endif /* #ifndef MINIZ_NO_STDIO */
7501
7502
5.48k
        pZip->m_archive_size += MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE;
7503
7504
5.48k
        pZip->m_zip_mode = MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED;
7505
5.48k
        return MZ_TRUE;
7506
5.48k
    }
7507
7508
    mz_bool mz_zip_writer_finalize_heap_archive(mz_zip_archive *pZip, void **ppBuf, size_t *pSize)
7509
0
    {
7510
0
        if ((!ppBuf) || (!pSize))
7511
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
7512
7513
0
        *ppBuf = NULL;
7514
0
        *pSize = 0;
7515
7516
0
        if ((!pZip) || (!pZip->m_pState))
7517
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
7518
7519
0
        if (pZip->m_pWrite != mz_zip_heap_write_func)
7520
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
7521
7522
0
        if (!mz_zip_writer_finalize_archive(pZip))
7523
0
            return MZ_FALSE;
7524
7525
0
        *ppBuf = pZip->m_pState->m_pMem;
7526
0
        *pSize = pZip->m_pState->m_mem_size;
7527
0
        pZip->m_pState->m_pMem = NULL;
7528
0
        pZip->m_pState->m_mem_size = pZip->m_pState->m_mem_capacity = 0;
7529
7530
0
        return MZ_TRUE;
7531
0
    }
7532
7533
    mz_bool mz_zip_writer_end(mz_zip_archive *pZip)
7534
0
    {
7535
0
        return mz_zip_writer_end_internal(pZip, MZ_TRUE);
7536
0
    }
7537
7538
#ifndef MINIZ_NO_STDIO
7539
    mz_bool mz_zip_add_mem_to_archive_file_in_place(const char *pZip_filename, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags)
7540
5.95k
    {
7541
5.95k
        return mz_zip_add_mem_to_archive_file_in_place_v2(pZip_filename, pArchive_name, pBuf, buf_size, pComment, comment_size, level_and_flags, NULL);
7542
5.95k
    }
7543
7544
    mz_bool mz_zip_add_mem_to_archive_file_in_place_v2(const char *pZip_filename, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags, mz_zip_error *pErr)
7545
5.95k
    {
7546
5.95k
        mz_bool status, created_new_archive = MZ_FALSE;
7547
5.95k
        mz_zip_archive zip_archive;
7548
5.95k
        struct MZ_FILE_STAT_STRUCT file_stat;
7549
5.95k
        mz_zip_error actual_err = MZ_ZIP_NO_ERROR;
7550
7551
5.95k
        mz_zip_zero_struct(&zip_archive);
7552
5.95k
        if ((int)level_and_flags < 0)
7553
0
            level_and_flags = MZ_DEFAULT_LEVEL;
7554
7555
5.95k
        if ((!pZip_filename) || (!pArchive_name) || ((buf_size) && (!pBuf)) || ((comment_size) && (!pComment)) || ((level_and_flags & 0xF) > MZ_UBER_COMPRESSION))
7556
388
        {
7557
388
            if (pErr)
7558
0
                *pErr = MZ_ZIP_INVALID_PARAMETER;
7559
388
            return MZ_FALSE;
7560
388
        }
7561
7562
5.57k
        if (!mz_zip_writer_validate_archive_name(pArchive_name))
7563
35
        {
7564
35
            if (pErr)
7565
0
                *pErr = MZ_ZIP_INVALID_FILENAME;
7566
35
            return MZ_FALSE;
7567
35
        }
7568
7569
        /* Important: The regular non-64 bit version of stat() can fail here if the file is very large, which could cause the archive to be overwritten. */
7570
        /* So be sure to compile with _LARGEFILE64_SOURCE 1 */
7571
5.53k
        if (MZ_FILE_STAT(pZip_filename, &file_stat) != 0)
7572
2.84k
        {
7573
            /* Create a new archive. */
7574
2.84k
            if (!mz_zip_writer_init_file_v2(&zip_archive, pZip_filename, 0, level_and_flags))
7575
0
            {
7576
0
                if (pErr)
7577
0
                    *pErr = zip_archive.m_last_error;
7578
0
                return MZ_FALSE;
7579
0
            }
7580
7581
2.84k
            created_new_archive = MZ_TRUE;
7582
2.84k
        }
7583
2.68k
        else
7584
2.68k
        {
7585
            /* Append to an existing archive. */
7586
2.68k
            if (!mz_zip_reader_init_file_v2(&zip_archive, pZip_filename, level_and_flags | MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY | MZ_ZIP_FLAG_READ_ALLOW_WRITING, 0, 0))
7587
16
            {
7588
16
                if (pErr)
7589
0
                    *pErr = zip_archive.m_last_error;
7590
16
                return MZ_FALSE;
7591
16
            }
7592
7593
2.67k
            if (!mz_zip_writer_init_from_reader_v2(&zip_archive, pZip_filename, level_and_flags | MZ_ZIP_FLAG_READ_ALLOW_WRITING))
7594
37
            {
7595
37
                if (pErr)
7596
0
                    *pErr = zip_archive.m_last_error;
7597
7598
37
                mz_zip_reader_end_internal(&zip_archive, MZ_FALSE);
7599
7600
37
                return MZ_FALSE;
7601
37
            }
7602
2.67k
        }
7603
7604
5.48k
        status = mz_zip_writer_add_mem_ex(&zip_archive, pArchive_name, pBuf, buf_size, pComment, comment_size, level_and_flags, 0, 0);
7605
5.48k
        actual_err = zip_archive.m_last_error;
7606
7607
        /* Always finalize, even if adding failed for some reason, so we have a valid central directory. (This may not always succeed, but we can try.) */
7608
5.48k
        if (!mz_zip_writer_finalize_archive(&zip_archive))
7609
0
        {
7610
0
            if (!actual_err)
7611
0
                actual_err = zip_archive.m_last_error;
7612
7613
0
            status = MZ_FALSE;
7614
0
        }
7615
7616
5.48k
        if (!mz_zip_writer_end_internal(&zip_archive, status))
7617
0
        {
7618
0
            if (!actual_err)
7619
0
                actual_err = zip_archive.m_last_error;
7620
7621
0
            status = MZ_FALSE;
7622
0
        }
7623
7624
5.48k
        if ((!status) && (created_new_archive))
7625
31
        {
7626
            /* It's a new archive and something went wrong, so just delete it. */
7627
31
            int ignoredStatus = MZ_DELETE_FILE(pZip_filename);
7628
31
            (void)ignoredStatus;
7629
31
        }
7630
7631
5.48k
        if (pErr)
7632
0
            *pErr = actual_err;
7633
7634
5.48k
        return status;
7635
5.53k
    }
7636
7637
    void *mz_zip_extract_archive_file_to_heap_v2(const char *pZip_filename, const char *pArchive_name, const char *pComment, size_t *pSize, mz_uint flags, mz_zip_error *pErr)
7638
5.95k
    {
7639
5.95k
        mz_uint32 file_index;
7640
5.95k
        mz_zip_archive zip_archive;
7641
5.95k
        void *p = NULL;
7642
7643
5.95k
        if (pSize)
7644
5.95k
            *pSize = 0;
7645
7646
5.95k
        if ((!pZip_filename) || (!pArchive_name))
7647
0
        {
7648
0
            if (pErr)
7649
0
                *pErr = MZ_ZIP_INVALID_PARAMETER;
7650
7651
0
            return NULL;
7652
0
        }
7653
7654
5.95k
        mz_zip_zero_struct(&zip_archive);
7655
5.95k
        if (!mz_zip_reader_init_file_v2(&zip_archive, pZip_filename, flags | MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY, 0, 0))
7656
380
        {
7657
380
            if (pErr)
7658
0
                *pErr = zip_archive.m_last_error;
7659
7660
380
            return NULL;
7661
380
        }
7662
7663
5.57k
        if (mz_zip_reader_locate_file_v2(&zip_archive, pArchive_name, pComment, flags, &file_index))
7664
5.23k
        {
7665
5.23k
            p = mz_zip_reader_extract_to_heap(&zip_archive, file_index, pSize, flags);
7666
5.23k
        }
7667
7668
5.57k
        mz_zip_reader_end_internal(&zip_archive, p != NULL);
7669
7670
5.57k
        if (pErr)
7671
0
            *pErr = zip_archive.m_last_error;
7672
7673
5.57k
        return p;
7674
5.95k
    }
7675
7676
    void *mz_zip_extract_archive_file_to_heap(const char *pZip_filename, const char *pArchive_name, size_t *pSize, mz_uint flags)
7677
5.95k
    {
7678
5.95k
        return mz_zip_extract_archive_file_to_heap_v2(pZip_filename, pArchive_name, NULL, pSize, flags, NULL);
7679
5.95k
    }
7680
7681
#endif /* #ifndef MINIZ_NO_STDIO */
7682
7683
#endif /* #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS */
7684
7685
    /* ------------------- Misc utils */
7686
7687
    mz_zip_mode mz_zip_get_mode(mz_zip_archive *pZip)
7688
0
    {
7689
0
        return pZip ? pZip->m_zip_mode : MZ_ZIP_MODE_INVALID;
7690
0
    }
7691
7692
    mz_zip_type mz_zip_get_type(mz_zip_archive *pZip)
7693
0
    {
7694
0
        return pZip ? pZip->m_zip_type : MZ_ZIP_TYPE_INVALID;
7695
0
    }
7696
7697
    mz_zip_error mz_zip_set_last_error(mz_zip_archive *pZip, mz_zip_error err_num)
7698
69.0k
    {
7699
69.0k
        mz_zip_error prev_err;
7700
7701
69.0k
        if (!pZip)
7702
0
            return MZ_ZIP_INVALID_PARAMETER;
7703
7704
69.0k
        prev_err = pZip->m_last_error;
7705
7706
69.0k
        pZip->m_last_error = err_num;
7707
69.0k
        return prev_err;
7708
69.0k
    }
7709
7710
    mz_zip_error mz_zip_peek_last_error(mz_zip_archive *pZip)
7711
0
    {
7712
0
        if (!pZip)
7713
0
            return MZ_ZIP_INVALID_PARAMETER;
7714
7715
0
        return pZip->m_last_error;
7716
0
    }
7717
7718
    mz_zip_error mz_zip_clear_last_error(mz_zip_archive *pZip)
7719
69.0k
    {
7720
69.0k
        return mz_zip_set_last_error(pZip, MZ_ZIP_NO_ERROR);
7721
69.0k
    }
7722
7723
    mz_zip_error mz_zip_get_last_error(mz_zip_archive *pZip)
7724
32.2k
    {
7725
32.2k
        mz_zip_error prev_err;
7726
7727
32.2k
        if (!pZip)
7728
0
            return MZ_ZIP_INVALID_PARAMETER;
7729
7730
32.2k
        prev_err = pZip->m_last_error;
7731
7732
32.2k
        pZip->m_last_error = MZ_ZIP_NO_ERROR;
7733
32.2k
        return prev_err;
7734
32.2k
    }
7735
7736
    const char *mz_zip_get_error_string(mz_zip_error mz_err)
7737
0
    {
7738
0
        switch (mz_err)
7739
0
        {
7740
0
            case MZ_ZIP_NO_ERROR:
7741
0
                return "no error";
7742
0
            case MZ_ZIP_UNDEFINED_ERROR:
7743
0
                return "undefined error";
7744
0
            case MZ_ZIP_TOO_MANY_FILES:
7745
0
                return "too many files";
7746
0
            case MZ_ZIP_FILE_TOO_LARGE:
7747
0
                return "file too large";
7748
0
            case MZ_ZIP_UNSUPPORTED_METHOD:
7749
0
                return "unsupported method";
7750
0
            case MZ_ZIP_UNSUPPORTED_ENCRYPTION:
7751
0
                return "unsupported encryption";
7752
0
            case MZ_ZIP_UNSUPPORTED_FEATURE:
7753
0
                return "unsupported feature";
7754
0
            case MZ_ZIP_FAILED_FINDING_CENTRAL_DIR:
7755
0
                return "failed finding central directory";
7756
0
            case MZ_ZIP_NOT_AN_ARCHIVE:
7757
0
                return "not a ZIP archive";
7758
0
            case MZ_ZIP_INVALID_HEADER_OR_CORRUPTED:
7759
0
                return "invalid header or archive is corrupted";
7760
0
            case MZ_ZIP_UNSUPPORTED_MULTIDISK:
7761
0
                return "unsupported multidisk archive";
7762
0
            case MZ_ZIP_DECOMPRESSION_FAILED:
7763
0
                return "decompression failed or archive is corrupted";
7764
0
            case MZ_ZIP_COMPRESSION_FAILED:
7765
0
                return "compression failed";
7766
0
            case MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE:
7767
0
                return "unexpected decompressed size";
7768
0
            case MZ_ZIP_CRC_CHECK_FAILED:
7769
0
                return "CRC-32 check failed";
7770
0
            case MZ_ZIP_UNSUPPORTED_CDIR_SIZE:
7771
0
                return "unsupported central directory size";
7772
0
            case MZ_ZIP_ALLOC_FAILED:
7773
0
                return "allocation failed";
7774
0
            case MZ_ZIP_FILE_OPEN_FAILED:
7775
0
                return "file open failed";
7776
0
            case MZ_ZIP_FILE_CREATE_FAILED:
7777
0
                return "file create failed";
7778
0
            case MZ_ZIP_FILE_WRITE_FAILED:
7779
0
                return "file write failed";
7780
0
            case MZ_ZIP_FILE_READ_FAILED:
7781
0
                return "file read failed";
7782
0
            case MZ_ZIP_FILE_CLOSE_FAILED:
7783
0
                return "file close failed";
7784
0
            case MZ_ZIP_FILE_SEEK_FAILED:
7785
0
                return "file seek failed";
7786
0
            case MZ_ZIP_FILE_STAT_FAILED:
7787
0
                return "file stat failed";
7788
0
            case MZ_ZIP_INVALID_PARAMETER:
7789
0
                return "invalid parameter";
7790
0
            case MZ_ZIP_INVALID_FILENAME:
7791
0
                return "invalid filename";
7792
0
            case MZ_ZIP_BUF_TOO_SMALL:
7793
0
                return "buffer too small";
7794
0
            case MZ_ZIP_INTERNAL_ERROR:
7795
0
                return "internal error";
7796
0
            case MZ_ZIP_FILE_NOT_FOUND:
7797
0
                return "file not found";
7798
0
            case MZ_ZIP_ARCHIVE_TOO_LARGE:
7799
0
                return "archive is too large";
7800
0
            case MZ_ZIP_VALIDATION_FAILED:
7801
0
                return "validation failed";
7802
0
            case MZ_ZIP_WRITE_CALLBACK_FAILED:
7803
0
                return "write callback failed";
7804
0
            case MZ_ZIP_TOTAL_ERRORS:
7805
0
                return "total errors";
7806
0
            default:
7807
0
                break;
7808
0
        }
7809
7810
0
        return "unknown error";
7811
0
    }
7812
7813
    /* Note: Just because the archive is not zip64 doesn't necessarily mean it doesn't have Zip64 extended information extra field, argh. */
7814
    mz_bool mz_zip_is_zip64(mz_zip_archive *pZip)
7815
0
    {
7816
0
        if ((!pZip) || (!pZip->m_pState))
7817
0
            return MZ_FALSE;
7818
7819
0
        return pZip->m_pState->m_zip64;
7820
0
    }
7821
7822
    size_t mz_zip_get_central_dir_size(mz_zip_archive *pZip)
7823
0
    {
7824
0
        if ((!pZip) || (!pZip->m_pState))
7825
0
            return 0;
7826
7827
0
        return pZip->m_pState->m_central_dir.m_size;
7828
0
    }
7829
7830
    mz_uint mz_zip_reader_get_num_files(mz_zip_archive *pZip)
7831
3.78k
    {
7832
3.78k
        return pZip ? pZip->m_total_files : 0;
7833
3.78k
    }
7834
7835
    mz_uint64 mz_zip_get_archive_size(mz_zip_archive *pZip)
7836
0
    {
7837
0
        if (!pZip)
7838
0
            return 0;
7839
0
        return pZip->m_archive_size;
7840
0
    }
7841
7842
    mz_uint64 mz_zip_get_archive_file_start_offset(mz_zip_archive *pZip)
7843
0
    {
7844
0
        if ((!pZip) || (!pZip->m_pState))
7845
0
            return 0;
7846
0
        return pZip->m_pState->m_file_archive_start_ofs;
7847
0
    }
7848
7849
    MZ_FILE *mz_zip_get_cfile(mz_zip_archive *pZip)
7850
0
    {
7851
0
        if ((!pZip) || (!pZip->m_pState))
7852
0
            return 0;
7853
0
        return pZip->m_pState->m_pFile;
7854
0
    }
7855
7856
    size_t mz_zip_read_archive_data(mz_zip_archive *pZip, mz_uint64 file_ofs, void *pBuf, size_t n)
7857
0
    {
7858
0
        if ((!pZip) || (!pZip->m_pState) || (!pBuf) || (!pZip->m_pRead))
7859
0
            return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
7860
7861
0
        return pZip->m_pRead(pZip->m_pIO_opaque, file_ofs, pBuf, n);
7862
0
    }
7863
7864
    mz_uint mz_zip_reader_get_filename(mz_zip_archive *pZip, mz_uint file_index, char *pFilename, mz_uint filename_buf_size)
7865
32.2k
    {
7866
32.2k
        mz_uint n;
7867
32.2k
        const mz_uint8 *p = mz_zip_get_cdh(pZip, file_index);
7868
32.2k
        if (!p)
7869
0
        {
7870
0
            if (filename_buf_size)
7871
0
                pFilename[0] = '\0';
7872
0
            mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
7873
0
            return 0;
7874
0
        }
7875
32.2k
        n = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS);
7876
32.2k
        if (filename_buf_size)
7877
32.2k
        {
7878
32.2k
            n = MZ_MIN(n, filename_buf_size - 1);
7879
32.2k
            memcpy(pFilename, p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, n);
7880
32.2k
            pFilename[n] = '\0';
7881
32.2k
        }
7882
32.2k
        return n + 1;
7883
32.2k
    }
7884
7885
    mz_bool mz_zip_reader_file_stat(mz_zip_archive *pZip, mz_uint file_index, mz_zip_archive_file_stat *pStat)
7886
64.8k
    {
7887
64.8k
        return mz_zip_file_stat_internal(pZip, file_index, mz_zip_get_cdh(pZip, file_index), pStat, NULL);
7888
64.8k
    }
7889
7890
    mz_bool mz_zip_end(mz_zip_archive *pZip)
7891
0
    {
7892
0
        if (!pZip)
7893
0
            return MZ_FALSE;
7894
7895
0
        if (pZip->m_zip_mode == MZ_ZIP_MODE_READING)
7896
0
            return mz_zip_reader_end(pZip);
7897
0
#ifndef MINIZ_NO_ARCHIVE_WRITING_APIS
7898
0
        else if ((pZip->m_zip_mode == MZ_ZIP_MODE_WRITING) || (pZip->m_zip_mode == MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED))
7899
0
            return mz_zip_writer_end(pZip);
7900
0
#endif
7901
7902
0
        return MZ_FALSE;
7903
0
    }
7904
7905
#ifdef __cplusplus
7906
}
7907
#endif
7908
7909
#endif /*#ifndef MINIZ_NO_ARCHIVE_APIS*/