/src/ghostpdl/tiff/libtiff/tif_dirread.c
Line | Count | Source |
1 | | /* |
2 | | * Copyright (c) 1988-1997 Sam Leffler |
3 | | * Copyright (c) 1991-1997 Silicon Graphics, Inc. |
4 | | * |
5 | | * Permission to use, copy, modify, distribute, and sell this software and |
6 | | * its documentation for any purpose is hereby granted without fee, provided |
7 | | * that (i) the above copyright notices and this permission notice appear in |
8 | | * all copies of the software and related documentation, and (ii) the names of |
9 | | * Sam Leffler and Silicon Graphics may not be used in any advertising or |
10 | | * publicity relating to the software without the specific, prior written |
11 | | * permission of Sam Leffler and Silicon Graphics. |
12 | | * |
13 | | * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, |
14 | | * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY |
15 | | * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. |
16 | | * |
17 | | * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR |
18 | | * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, |
19 | | * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
20 | | * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF |
21 | | * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
22 | | * OF THIS SOFTWARE. |
23 | | */ |
24 | | |
25 | | /* |
26 | | * TIFF Library. |
27 | | * |
28 | | * Directory Read Support Routines. |
29 | | */ |
30 | | |
31 | | /* Suggested pending improvements: |
32 | | * - add a field 'field_info' to the TIFFDirEntry structure, and set that with |
33 | | * the pointer to the appropriate TIFFField structure early on in |
34 | | * TIFFReadDirectory, so as to eliminate current possibly repetitive lookup. |
35 | | */ |
36 | | |
37 | | #include "tiffconf.h" |
38 | | #include "tiffiop.h" |
39 | | #include <float.h> |
40 | | #include <limits.h> |
41 | | #include <stdlib.h> |
42 | | #include <string.h> |
43 | | |
44 | 56.7k | #define FAILED_FII ((uint32_t)-1) |
45 | | |
46 | | #ifdef HAVE_IEEEFP |
47 | | #define TIFFCvtIEEEFloatToNative(tif, n, fp) |
48 | | #define TIFFCvtIEEEDoubleToNative(tif, n, dp) |
49 | | #else |
50 | | extern void TIFFCvtIEEEFloatToNative(TIFF *, uint32_t, float *); |
51 | | extern void TIFFCvtIEEEDoubleToNative(TIFF *, uint32_t, double *); |
52 | | #endif |
53 | | |
54 | | enum TIFFReadDirEntryErr |
55 | | { |
56 | | TIFFReadDirEntryErrOk = 0, |
57 | | TIFFReadDirEntryErrCount = 1, |
58 | | TIFFReadDirEntryErrType = 2, |
59 | | TIFFReadDirEntryErrIo = 3, |
60 | | TIFFReadDirEntryErrRange = 4, |
61 | | TIFFReadDirEntryErrPsdif = 5, |
62 | | TIFFReadDirEntryErrSizesan = 6, |
63 | | TIFFReadDirEntryErrAlloc = 7, |
64 | | }; |
65 | | |
66 | | static enum TIFFReadDirEntryErr |
67 | | TIFFReadDirEntryByte(TIFF *tif, TIFFDirEntry *direntry, uint8_t *value); |
68 | | static enum TIFFReadDirEntryErr |
69 | | TIFFReadDirEntrySbyte(TIFF *tif, TIFFDirEntry *direntry, int8_t *value); |
70 | | static enum TIFFReadDirEntryErr |
71 | | TIFFReadDirEntryShort(TIFF *tif, TIFFDirEntry *direntry, uint16_t *value); |
72 | | static enum TIFFReadDirEntryErr |
73 | | TIFFReadDirEntrySshort(TIFF *tif, TIFFDirEntry *direntry, int16_t *value); |
74 | | static enum TIFFReadDirEntryErr |
75 | | TIFFReadDirEntryLong(TIFF *tif, TIFFDirEntry *direntry, uint32_t *value); |
76 | | static enum TIFFReadDirEntryErr |
77 | | TIFFReadDirEntrySlong(TIFF *tif, TIFFDirEntry *direntry, int32_t *value); |
78 | | static enum TIFFReadDirEntryErr |
79 | | TIFFReadDirEntryLong8(TIFF *tif, TIFFDirEntry *direntry, uint64_t *value); |
80 | | static enum TIFFReadDirEntryErr |
81 | | TIFFReadDirEntrySlong8(TIFF *tif, TIFFDirEntry *direntry, int64_t *value); |
82 | | static enum TIFFReadDirEntryErr |
83 | | TIFFReadDirEntryFloat(TIFF *tif, TIFFDirEntry *direntry, float *value); |
84 | | static enum TIFFReadDirEntryErr |
85 | | TIFFReadDirEntryDouble(TIFF *tif, TIFFDirEntry *direntry, double *value); |
86 | | static enum TIFFReadDirEntryErr |
87 | | TIFFReadDirEntryIfd8(TIFF *tif, TIFFDirEntry *direntry, uint64_t *value); |
88 | | |
89 | | static enum TIFFReadDirEntryErr |
90 | | TIFFReadDirEntryArray(TIFF *tif, TIFFDirEntry *direntry, uint32_t *count, |
91 | | uint32_t desttypesize, void **value); |
92 | | static enum TIFFReadDirEntryErr |
93 | | TIFFReadDirEntryByteArray(TIFF *tif, TIFFDirEntry *direntry, uint8_t **value); |
94 | | static enum TIFFReadDirEntryErr |
95 | | TIFFReadDirEntrySbyteArray(TIFF *tif, TIFFDirEntry *direntry, int8_t **value); |
96 | | static enum TIFFReadDirEntryErr |
97 | | TIFFReadDirEntryShortArray(TIFF *tif, TIFFDirEntry *direntry, uint16_t **value); |
98 | | static enum TIFFReadDirEntryErr |
99 | | TIFFReadDirEntrySshortArray(TIFF *tif, TIFFDirEntry *direntry, int16_t **value); |
100 | | static enum TIFFReadDirEntryErr |
101 | | TIFFReadDirEntryLongArray(TIFF *tif, TIFFDirEntry *direntry, uint32_t **value); |
102 | | static enum TIFFReadDirEntryErr |
103 | | TIFFReadDirEntrySlongArray(TIFF *tif, TIFFDirEntry *direntry, int32_t **value); |
104 | | static enum TIFFReadDirEntryErr |
105 | | TIFFReadDirEntryLong8Array(TIFF *tif, TIFFDirEntry *direntry, uint64_t **value); |
106 | | static enum TIFFReadDirEntryErr |
107 | | TIFFReadDirEntrySlong8Array(TIFF *tif, TIFFDirEntry *direntry, int64_t **value); |
108 | | static enum TIFFReadDirEntryErr |
109 | | TIFFReadDirEntryFloatArray(TIFF *tif, TIFFDirEntry *direntry, float **value); |
110 | | static enum TIFFReadDirEntryErr |
111 | | TIFFReadDirEntryDoubleArray(TIFF *tif, TIFFDirEntry *direntry, double **value); |
112 | | static enum TIFFReadDirEntryErr |
113 | | TIFFReadDirEntryIfd8Array(TIFF *tif, TIFFDirEntry *direntry, uint64_t **value); |
114 | | |
115 | | static enum TIFFReadDirEntryErr |
116 | | TIFFReadDirEntryPersampleShort(TIFF *tif, TIFFDirEntry *direntry, |
117 | | uint16_t *value); |
118 | | |
119 | | static void TIFFReadDirEntryCheckedByte(TIFF *tif, TIFFDirEntry *direntry, |
120 | | uint8_t *value); |
121 | | static void TIFFReadDirEntryCheckedSbyte(TIFF *tif, TIFFDirEntry *direntry, |
122 | | int8_t *value); |
123 | | static void TIFFReadDirEntryCheckedShort(TIFF *tif, TIFFDirEntry *direntry, |
124 | | uint16_t *value); |
125 | | static void TIFFReadDirEntryCheckedSshort(TIFF *tif, TIFFDirEntry *direntry, |
126 | | int16_t *value); |
127 | | static void TIFFReadDirEntryCheckedLong(TIFF *tif, TIFFDirEntry *direntry, |
128 | | uint32_t *value); |
129 | | static void TIFFReadDirEntryCheckedSlong(TIFF *tif, TIFFDirEntry *direntry, |
130 | | int32_t *value); |
131 | | static enum TIFFReadDirEntryErr |
132 | | TIFFReadDirEntryCheckedLong8(TIFF *tif, TIFFDirEntry *direntry, |
133 | | uint64_t *value); |
134 | | static enum TIFFReadDirEntryErr |
135 | | TIFFReadDirEntryCheckedSlong8(TIFF *tif, TIFFDirEntry *direntry, |
136 | | int64_t *value); |
137 | | static enum TIFFReadDirEntryErr |
138 | | TIFFReadDirEntryCheckedRational(TIFF *tif, TIFFDirEntry *direntry, |
139 | | double *value); |
140 | | static enum TIFFReadDirEntryErr |
141 | | TIFFReadDirEntryCheckedSrational(TIFF *tif, TIFFDirEntry *direntry, |
142 | | double *value); |
143 | | static void TIFFReadDirEntryCheckedFloat(TIFF *tif, TIFFDirEntry *direntry, |
144 | | float *value); |
145 | | static enum TIFFReadDirEntryErr |
146 | | TIFFReadDirEntryCheckedDouble(TIFF *tif, TIFFDirEntry *direntry, double *value); |
147 | | #if 0 |
148 | | static enum TIFFReadDirEntryErr |
149 | | TIFFReadDirEntryCheckedRationalDirect(TIFF *tif, TIFFDirEntry *direntry, |
150 | | TIFFRational_t *value); |
151 | | #endif |
152 | | static enum TIFFReadDirEntryErr |
153 | | TIFFReadDirEntryCheckRangeByteSbyte(int8_t value); |
154 | | static enum TIFFReadDirEntryErr |
155 | | TIFFReadDirEntryCheckRangeByteShort(uint16_t value); |
156 | | static enum TIFFReadDirEntryErr |
157 | | TIFFReadDirEntryCheckRangeByteSshort(int16_t value); |
158 | | static enum TIFFReadDirEntryErr |
159 | | TIFFReadDirEntryCheckRangeByteLong(uint32_t value); |
160 | | static enum TIFFReadDirEntryErr |
161 | | TIFFReadDirEntryCheckRangeByteSlong(int32_t value); |
162 | | static enum TIFFReadDirEntryErr |
163 | | TIFFReadDirEntryCheckRangeByteLong8(uint64_t value); |
164 | | static enum TIFFReadDirEntryErr |
165 | | TIFFReadDirEntryCheckRangeByteSlong8(int64_t value); |
166 | | |
167 | | static enum TIFFReadDirEntryErr |
168 | | TIFFReadDirEntryCheckRangeSbyteByte(uint8_t value); |
169 | | static enum TIFFReadDirEntryErr |
170 | | TIFFReadDirEntryCheckRangeSbyteShort(uint16_t value); |
171 | | static enum TIFFReadDirEntryErr |
172 | | TIFFReadDirEntryCheckRangeSbyteSshort(int16_t value); |
173 | | static enum TIFFReadDirEntryErr |
174 | | TIFFReadDirEntryCheckRangeSbyteLong(uint32_t value); |
175 | | static enum TIFFReadDirEntryErr |
176 | | TIFFReadDirEntryCheckRangeSbyteSlong(int32_t value); |
177 | | static enum TIFFReadDirEntryErr |
178 | | TIFFReadDirEntryCheckRangeSbyteLong8(uint64_t value); |
179 | | static enum TIFFReadDirEntryErr |
180 | | TIFFReadDirEntryCheckRangeSbyteSlong8(int64_t value); |
181 | | |
182 | | static enum TIFFReadDirEntryErr |
183 | | TIFFReadDirEntryCheckRangeShortSbyte(int8_t value); |
184 | | static enum TIFFReadDirEntryErr |
185 | | TIFFReadDirEntryCheckRangeShortSshort(int16_t value); |
186 | | static enum TIFFReadDirEntryErr |
187 | | TIFFReadDirEntryCheckRangeShortLong(uint32_t value); |
188 | | static enum TIFFReadDirEntryErr |
189 | | TIFFReadDirEntryCheckRangeShortSlong(int32_t value); |
190 | | static enum TIFFReadDirEntryErr |
191 | | TIFFReadDirEntryCheckRangeShortLong8(uint64_t value); |
192 | | static enum TIFFReadDirEntryErr |
193 | | TIFFReadDirEntryCheckRangeShortSlong8(int64_t value); |
194 | | |
195 | | static enum TIFFReadDirEntryErr |
196 | | TIFFReadDirEntryCheckRangeSshortShort(uint16_t value); |
197 | | static enum TIFFReadDirEntryErr |
198 | | TIFFReadDirEntryCheckRangeSshortLong(uint32_t value); |
199 | | static enum TIFFReadDirEntryErr |
200 | | TIFFReadDirEntryCheckRangeSshortSlong(int32_t value); |
201 | | static enum TIFFReadDirEntryErr |
202 | | TIFFReadDirEntryCheckRangeSshortLong8(uint64_t value); |
203 | | static enum TIFFReadDirEntryErr |
204 | | TIFFReadDirEntryCheckRangeSshortSlong8(int64_t value); |
205 | | |
206 | | static enum TIFFReadDirEntryErr |
207 | | TIFFReadDirEntryCheckRangeLongSbyte(int8_t value); |
208 | | static enum TIFFReadDirEntryErr |
209 | | TIFFReadDirEntryCheckRangeLongSshort(int16_t value); |
210 | | static enum TIFFReadDirEntryErr |
211 | | TIFFReadDirEntryCheckRangeLongSlong(int32_t value); |
212 | | static enum TIFFReadDirEntryErr |
213 | | TIFFReadDirEntryCheckRangeLongLong8(uint64_t value); |
214 | | static enum TIFFReadDirEntryErr |
215 | | TIFFReadDirEntryCheckRangeLongSlong8(int64_t value); |
216 | | |
217 | | static enum TIFFReadDirEntryErr |
218 | | TIFFReadDirEntryCheckRangeSlongLong(uint32_t value); |
219 | | static enum TIFFReadDirEntryErr |
220 | | TIFFReadDirEntryCheckRangeSlongLong8(uint64_t value); |
221 | | static enum TIFFReadDirEntryErr |
222 | | TIFFReadDirEntryCheckRangeSlongSlong8(int64_t value); |
223 | | |
224 | | static enum TIFFReadDirEntryErr |
225 | | TIFFReadDirEntryCheckRangeLong8Sbyte(int8_t value); |
226 | | static enum TIFFReadDirEntryErr |
227 | | TIFFReadDirEntryCheckRangeLong8Sshort(int16_t value); |
228 | | static enum TIFFReadDirEntryErr |
229 | | TIFFReadDirEntryCheckRangeLong8Slong(int32_t value); |
230 | | static enum TIFFReadDirEntryErr |
231 | | TIFFReadDirEntryCheckRangeLong8Slong8(int64_t value); |
232 | | |
233 | | static enum TIFFReadDirEntryErr |
234 | | TIFFReadDirEntryCheckRangeSlong8Long8(uint64_t value); |
235 | | |
236 | | static enum TIFFReadDirEntryErr TIFFReadDirEntryData(TIFF *tif, uint64_t offset, |
237 | | tmsize_t size, void *dest); |
238 | | static void TIFFReadDirEntryOutputErr(TIFF *tif, enum TIFFReadDirEntryErr err, |
239 | | const char *module, const char *tagname, |
240 | | int recover); |
241 | | |
242 | | static void TIFFReadDirectoryCheckOrder(TIFF *tif, TIFFDirEntry *dir, |
243 | | uint16_t dircount); |
244 | | static TIFFDirEntry *TIFFReadDirectoryFindEntry(TIFF *tif, TIFFDirEntry *dir, |
245 | | uint16_t dircount, |
246 | | uint16_t tagid); |
247 | | static void TIFFReadDirectoryFindFieldInfo(TIFF *tif, uint16_t tagid, |
248 | | uint32_t *fii); |
249 | | |
250 | | static int EstimateStripByteCounts(TIFF *tif, TIFFDirEntry *dir, |
251 | | uint16_t dircount); |
252 | | static void MissingRequired(TIFF *, const char *); |
253 | | static int CheckDirCount(TIFF *, TIFFDirEntry *, uint32_t); |
254 | | static uint16_t TIFFFetchDirectory(TIFF *tif, uint64_t diroff, |
255 | | TIFFDirEntry **pdir, uint64_t *nextdiroff); |
256 | | static int TIFFFetchNormalTag(TIFF *, TIFFDirEntry *, int recover); |
257 | | static int TIFFFetchStripThing(TIFF *tif, TIFFDirEntry *dir, uint32_t nstrips, |
258 | | uint64_t **lpp); |
259 | | static int TIFFFetchSubjectDistance(TIFF *, TIFFDirEntry *); |
260 | | static void ChopUpSingleUncompressedStrip(TIFF *); |
261 | | static void TryChopUpUncompressedBigTiff(TIFF *); |
262 | | static uint64_t TIFFReadUInt64(const uint8_t *value); |
263 | | static int _TIFFGetMaxColorChannels(uint16_t photometric); |
264 | | |
265 | | static int _TIFFFillStrilesInternal(TIFF *tif, int loadStripByteCount); |
266 | | |
267 | | typedef union _UInt64Aligned_t |
268 | | { |
269 | | double d; |
270 | | uint64_t l; |
271 | | uint32_t i[2]; |
272 | | uint16_t s[4]; |
273 | | uint8_t c[8]; |
274 | | } UInt64Aligned_t; |
275 | | |
276 | | /* |
277 | | Unaligned safe copy of a uint64_t value from an octet array. |
278 | | */ |
279 | | static uint64_t TIFFReadUInt64(const uint8_t *value) |
280 | 646 | { |
281 | 646 | UInt64Aligned_t result; |
282 | | |
283 | 646 | result.c[0] = value[0]; |
284 | 646 | result.c[1] = value[1]; |
285 | 646 | result.c[2] = value[2]; |
286 | 646 | result.c[3] = value[3]; |
287 | 646 | result.c[4] = value[4]; |
288 | 646 | result.c[5] = value[5]; |
289 | 646 | result.c[6] = value[6]; |
290 | 646 | result.c[7] = value[7]; |
291 | | |
292 | 646 | return result.l; |
293 | 646 | } |
294 | | |
295 | | static enum TIFFReadDirEntryErr |
296 | | TIFFReadDirEntryByte(TIFF *tif, TIFFDirEntry *direntry, uint8_t *value) |
297 | 31 | { |
298 | 31 | enum TIFFReadDirEntryErr err; |
299 | 31 | if (direntry->tdir_count != 1) |
300 | 5 | return (TIFFReadDirEntryErrCount); |
301 | 26 | switch (direntry->tdir_type) |
302 | 26 | { |
303 | 0 | case TIFF_BYTE: |
304 | 0 | case TIFF_UNDEFINED: /* Support to read TIFF_UNDEFINED with |
305 | | field_readcount==1 */ |
306 | 0 | TIFFReadDirEntryCheckedByte(tif, direntry, value); |
307 | 0 | return (TIFFReadDirEntryErrOk); |
308 | 2 | case TIFF_SBYTE: |
309 | 2 | { |
310 | 2 | int8_t m; |
311 | 2 | TIFFReadDirEntryCheckedSbyte(tif, direntry, &m); |
312 | 2 | err = TIFFReadDirEntryCheckRangeByteSbyte(m); |
313 | 2 | if (err != TIFFReadDirEntryErrOk) |
314 | 0 | return (err); |
315 | 2 | *value = (uint8_t)m; |
316 | 2 | return (TIFFReadDirEntryErrOk); |
317 | 2 | } |
318 | 2 | case TIFF_SHORT: |
319 | 2 | { |
320 | 2 | uint16_t m; |
321 | 2 | TIFFReadDirEntryCheckedShort(tif, direntry, &m); |
322 | 2 | err = TIFFReadDirEntryCheckRangeByteShort(m); |
323 | 2 | if (err != TIFFReadDirEntryErrOk) |
324 | 1 | return (err); |
325 | 1 | *value = (uint8_t)m; |
326 | 1 | return (TIFFReadDirEntryErrOk); |
327 | 2 | } |
328 | 4 | case TIFF_SSHORT: |
329 | 4 | { |
330 | 4 | int16_t m; |
331 | 4 | TIFFReadDirEntryCheckedSshort(tif, direntry, &m); |
332 | 4 | err = TIFFReadDirEntryCheckRangeByteSshort(m); |
333 | 4 | if (err != TIFFReadDirEntryErrOk) |
334 | 2 | return (err); |
335 | 2 | *value = (uint8_t)m; |
336 | 2 | return (TIFFReadDirEntryErrOk); |
337 | 4 | } |
338 | 0 | case TIFF_LONG: |
339 | 0 | { |
340 | 0 | uint32_t m; |
341 | 0 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
342 | 0 | err = TIFFReadDirEntryCheckRangeByteLong(m); |
343 | 0 | if (err != TIFFReadDirEntryErrOk) |
344 | 0 | return (err); |
345 | 0 | *value = (uint8_t)m; |
346 | 0 | return (TIFFReadDirEntryErrOk); |
347 | 0 | } |
348 | 2 | case TIFF_SLONG: |
349 | 2 | { |
350 | 2 | int32_t m; |
351 | 2 | TIFFReadDirEntryCheckedSlong(tif, direntry, &m); |
352 | 2 | err = TIFFReadDirEntryCheckRangeByteSlong(m); |
353 | 2 | if (err != TIFFReadDirEntryErrOk) |
354 | 2 | return (err); |
355 | 0 | *value = (uint8_t)m; |
356 | 0 | return (TIFFReadDirEntryErrOk); |
357 | 2 | } |
358 | 11 | case TIFF_LONG8: |
359 | 11 | { |
360 | 11 | uint64_t m; |
361 | 11 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, &m); |
362 | 11 | if (err != TIFFReadDirEntryErrOk) |
363 | 2 | return (err); |
364 | 9 | err = TIFFReadDirEntryCheckRangeByteLong8(m); |
365 | 9 | if (err != TIFFReadDirEntryErrOk) |
366 | 5 | return (err); |
367 | 4 | *value = (uint8_t)m; |
368 | 4 | return (TIFFReadDirEntryErrOk); |
369 | 9 | } |
370 | 4 | case TIFF_SLONG8: |
371 | 4 | { |
372 | 4 | int64_t m; |
373 | 4 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, &m); |
374 | 4 | if (err != TIFFReadDirEntryErrOk) |
375 | 0 | return (err); |
376 | 4 | err = TIFFReadDirEntryCheckRangeByteSlong8(m); |
377 | 4 | if (err != TIFFReadDirEntryErrOk) |
378 | 4 | return (err); |
379 | 0 | *value = (uint8_t)m; |
380 | 0 | return (TIFFReadDirEntryErrOk); |
381 | 4 | } |
382 | 1 | default: |
383 | 1 | return (TIFFReadDirEntryErrType); |
384 | 26 | } |
385 | 26 | } |
386 | | |
387 | | static enum TIFFReadDirEntryErr |
388 | | TIFFReadDirEntrySbyte(TIFF *tif, TIFFDirEntry *direntry, int8_t *value) |
389 | 0 | { |
390 | 0 | enum TIFFReadDirEntryErr err; |
391 | 0 | if (direntry->tdir_count != 1) |
392 | 0 | return (TIFFReadDirEntryErrCount); |
393 | 0 | switch (direntry->tdir_type) |
394 | 0 | { |
395 | 0 | case TIFF_BYTE: |
396 | 0 | case TIFF_UNDEFINED: /* Support to read TIFF_UNDEFINED with |
397 | | field_readcount==1 */ |
398 | 0 | { |
399 | 0 | uint8_t m; |
400 | 0 | TIFFReadDirEntryCheckedByte(tif, direntry, &m); |
401 | 0 | err = TIFFReadDirEntryCheckRangeSbyteByte(m); |
402 | 0 | if (err != TIFFReadDirEntryErrOk) |
403 | 0 | return (err); |
404 | 0 | *value = (int8_t)m; |
405 | 0 | return (TIFFReadDirEntryErrOk); |
406 | 0 | } |
407 | 0 | case TIFF_SBYTE: |
408 | 0 | { |
409 | 0 | TIFFReadDirEntryCheckedSbyte(tif, direntry, value); |
410 | 0 | return (TIFFReadDirEntryErrOk); |
411 | 0 | } |
412 | 0 | case TIFF_SHORT: |
413 | 0 | { |
414 | 0 | uint16_t m; |
415 | 0 | TIFFReadDirEntryCheckedShort(tif, direntry, &m); |
416 | 0 | err = TIFFReadDirEntryCheckRangeSbyteShort(m); |
417 | 0 | if (err != TIFFReadDirEntryErrOk) |
418 | 0 | return (err); |
419 | 0 | *value = (int8_t)m; |
420 | 0 | return (TIFFReadDirEntryErrOk); |
421 | 0 | } |
422 | 0 | case TIFF_SSHORT: |
423 | 0 | { |
424 | 0 | int16_t m; |
425 | 0 | TIFFReadDirEntryCheckedSshort(tif, direntry, &m); |
426 | 0 | err = TIFFReadDirEntryCheckRangeSbyteSshort(m); |
427 | 0 | if (err != TIFFReadDirEntryErrOk) |
428 | 0 | return (err); |
429 | 0 | *value = (int8_t)m; |
430 | 0 | return (TIFFReadDirEntryErrOk); |
431 | 0 | } |
432 | 0 | case TIFF_LONG: |
433 | 0 | { |
434 | 0 | uint32_t m; |
435 | 0 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
436 | 0 | err = TIFFReadDirEntryCheckRangeSbyteLong(m); |
437 | 0 | if (err != TIFFReadDirEntryErrOk) |
438 | 0 | return (err); |
439 | 0 | *value = (int8_t)m; |
440 | 0 | return (TIFFReadDirEntryErrOk); |
441 | 0 | } |
442 | 0 | case TIFF_SLONG: |
443 | 0 | { |
444 | 0 | int32_t m; |
445 | 0 | TIFFReadDirEntryCheckedSlong(tif, direntry, &m); |
446 | 0 | err = TIFFReadDirEntryCheckRangeSbyteSlong(m); |
447 | 0 | if (err != TIFFReadDirEntryErrOk) |
448 | 0 | return (err); |
449 | 0 | *value = (int8_t)m; |
450 | 0 | return (TIFFReadDirEntryErrOk); |
451 | 0 | } |
452 | 0 | case TIFF_LONG8: |
453 | 0 | { |
454 | 0 | uint64_t m; |
455 | 0 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, &m); |
456 | 0 | if (err != TIFFReadDirEntryErrOk) |
457 | 0 | return (err); |
458 | 0 | err = TIFFReadDirEntryCheckRangeSbyteLong8(m); |
459 | 0 | if (err != TIFFReadDirEntryErrOk) |
460 | 0 | return (err); |
461 | 0 | *value = (int8_t)m; |
462 | 0 | return (TIFFReadDirEntryErrOk); |
463 | 0 | } |
464 | 0 | case TIFF_SLONG8: |
465 | 0 | { |
466 | 0 | int64_t m; |
467 | 0 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, &m); |
468 | 0 | if (err != TIFFReadDirEntryErrOk) |
469 | 0 | return (err); |
470 | 0 | err = TIFFReadDirEntryCheckRangeSbyteSlong8(m); |
471 | 0 | if (err != TIFFReadDirEntryErrOk) |
472 | 0 | return (err); |
473 | 0 | *value = (int8_t)m; |
474 | 0 | return (TIFFReadDirEntryErrOk); |
475 | 0 | } |
476 | 0 | default: |
477 | 0 | return (TIFFReadDirEntryErrType); |
478 | 0 | } |
479 | 0 | } /*-- TIFFReadDirEntrySbyte() --*/ |
480 | | |
481 | | static enum TIFFReadDirEntryErr |
482 | | TIFFReadDirEntryShort(TIFF *tif, TIFFDirEntry *direntry, uint16_t *value) |
483 | 1.83k | { |
484 | 1.83k | enum TIFFReadDirEntryErr err; |
485 | 1.83k | if (direntry->tdir_count != 1) |
486 | 284 | return (TIFFReadDirEntryErrCount); |
487 | 1.55k | switch (direntry->tdir_type) |
488 | 1.55k | { |
489 | 13 | case TIFF_BYTE: |
490 | 13 | { |
491 | 13 | uint8_t m; |
492 | 13 | TIFFReadDirEntryCheckedByte(tif, direntry, &m); |
493 | 13 | *value = (uint16_t)m; |
494 | 13 | return (TIFFReadDirEntryErrOk); |
495 | 0 | } |
496 | 29 | case TIFF_SBYTE: |
497 | 29 | { |
498 | 29 | int8_t m; |
499 | 29 | TIFFReadDirEntryCheckedSbyte(tif, direntry, &m); |
500 | 29 | err = TIFFReadDirEntryCheckRangeShortSbyte(m); |
501 | 29 | if (err != TIFFReadDirEntryErrOk) |
502 | 1 | return (err); |
503 | 28 | *value = (uint16_t)m; |
504 | 28 | return (TIFFReadDirEntryErrOk); |
505 | 29 | } |
506 | 1.41k | case TIFF_SHORT: |
507 | 1.41k | TIFFReadDirEntryCheckedShort(tif, direntry, value); |
508 | 1.41k | return (TIFFReadDirEntryErrOk); |
509 | 30 | case TIFF_SSHORT: |
510 | 30 | { |
511 | 30 | int16_t m; |
512 | 30 | TIFFReadDirEntryCheckedSshort(tif, direntry, &m); |
513 | 30 | err = TIFFReadDirEntryCheckRangeShortSshort(m); |
514 | 30 | if (err != TIFFReadDirEntryErrOk) |
515 | 2 | return (err); |
516 | 28 | *value = (uint16_t)m; |
517 | 28 | return (TIFFReadDirEntryErrOk); |
518 | 30 | } |
519 | 8 | case TIFF_LONG: |
520 | 8 | { |
521 | 8 | uint32_t m; |
522 | 8 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
523 | 8 | err = TIFFReadDirEntryCheckRangeShortLong(m); |
524 | 8 | if (err != TIFFReadDirEntryErrOk) |
525 | 2 | return (err); |
526 | 6 | *value = (uint16_t)m; |
527 | 6 | return (TIFFReadDirEntryErrOk); |
528 | 8 | } |
529 | 21 | case TIFF_SLONG: |
530 | 21 | { |
531 | 21 | int32_t m; |
532 | 21 | TIFFReadDirEntryCheckedSlong(tif, direntry, &m); |
533 | 21 | err = TIFFReadDirEntryCheckRangeShortSlong(m); |
534 | 21 | if (err != TIFFReadDirEntryErrOk) |
535 | 4 | return (err); |
536 | 17 | *value = (uint16_t)m; |
537 | 17 | return (TIFFReadDirEntryErrOk); |
538 | 21 | } |
539 | 5 | case TIFF_LONG8: |
540 | 5 | { |
541 | 5 | uint64_t m; |
542 | 5 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, &m); |
543 | 5 | if (err != TIFFReadDirEntryErrOk) |
544 | 1 | return (err); |
545 | 4 | err = TIFFReadDirEntryCheckRangeShortLong8(m); |
546 | 4 | if (err != TIFFReadDirEntryErrOk) |
547 | 4 | return (err); |
548 | 0 | *value = (uint16_t)m; |
549 | 0 | return (TIFFReadDirEntryErrOk); |
550 | 4 | } |
551 | 16 | case TIFF_SLONG8: |
552 | 16 | { |
553 | 16 | int64_t m; |
554 | 16 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, &m); |
555 | 16 | if (err != TIFFReadDirEntryErrOk) |
556 | 6 | return (err); |
557 | 10 | err = TIFFReadDirEntryCheckRangeShortSlong8(m); |
558 | 10 | if (err != TIFFReadDirEntryErrOk) |
559 | 10 | return (err); |
560 | 0 | *value = (uint16_t)m; |
561 | 0 | return (TIFFReadDirEntryErrOk); |
562 | 10 | } |
563 | 12 | default: |
564 | 12 | return (TIFFReadDirEntryErrType); |
565 | 1.55k | } |
566 | 1.55k | } /*-- TIFFReadDirEntryShort() --*/ |
567 | | |
568 | | static enum TIFFReadDirEntryErr |
569 | | TIFFReadDirEntrySshort(TIFF *tif, TIFFDirEntry *direntry, int16_t *value) |
570 | 0 | { |
571 | 0 | enum TIFFReadDirEntryErr err; |
572 | 0 | if (direntry->tdir_count != 1) |
573 | 0 | return (TIFFReadDirEntryErrCount); |
574 | 0 | switch (direntry->tdir_type) |
575 | 0 | { |
576 | 0 | case TIFF_BYTE: |
577 | 0 | { |
578 | 0 | uint8_t m; |
579 | 0 | TIFFReadDirEntryCheckedByte(tif, direntry, &m); |
580 | 0 | *value = (int16_t)m; |
581 | 0 | return (TIFFReadDirEntryErrOk); |
582 | 0 | } |
583 | 0 | case TIFF_SBYTE: |
584 | 0 | { |
585 | 0 | int8_t m; |
586 | 0 | TIFFReadDirEntryCheckedSbyte(tif, direntry, &m); |
587 | 0 | *value = (int16_t)m; |
588 | 0 | return (TIFFReadDirEntryErrOk); |
589 | 0 | } |
590 | 0 | case TIFF_SHORT: |
591 | 0 | { |
592 | 0 | uint16_t m; |
593 | 0 | TIFFReadDirEntryCheckedShort(tif, direntry, &m); |
594 | 0 | err = TIFFReadDirEntryCheckRangeSshortShort(m); |
595 | 0 | if (err != TIFFReadDirEntryErrOk) |
596 | 0 | return (err); |
597 | 0 | *value = (uint16_t)m; |
598 | 0 | return (TIFFReadDirEntryErrOk); |
599 | 0 | } |
600 | 0 | case TIFF_SSHORT: |
601 | 0 | TIFFReadDirEntryCheckedSshort(tif, direntry, value); |
602 | 0 | return (TIFFReadDirEntryErrOk); |
603 | 0 | case TIFF_LONG: |
604 | 0 | { |
605 | 0 | uint32_t m; |
606 | 0 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
607 | 0 | err = TIFFReadDirEntryCheckRangeSshortLong(m); |
608 | 0 | if (err != TIFFReadDirEntryErrOk) |
609 | 0 | return (err); |
610 | 0 | *value = (int16_t)m; |
611 | 0 | return (TIFFReadDirEntryErrOk); |
612 | 0 | } |
613 | 0 | case TIFF_SLONG: |
614 | 0 | { |
615 | 0 | int32_t m; |
616 | 0 | TIFFReadDirEntryCheckedSlong(tif, direntry, &m); |
617 | 0 | err = TIFFReadDirEntryCheckRangeSshortSlong(m); |
618 | 0 | if (err != TIFFReadDirEntryErrOk) |
619 | 0 | return (err); |
620 | 0 | *value = (int16_t)m; |
621 | 0 | return (TIFFReadDirEntryErrOk); |
622 | 0 | } |
623 | 0 | case TIFF_LONG8: |
624 | 0 | { |
625 | 0 | uint64_t m; |
626 | 0 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, &m); |
627 | 0 | if (err != TIFFReadDirEntryErrOk) |
628 | 0 | return (err); |
629 | 0 | err = TIFFReadDirEntryCheckRangeSshortLong8(m); |
630 | 0 | if (err != TIFFReadDirEntryErrOk) |
631 | 0 | return (err); |
632 | 0 | *value = (int16_t)m; |
633 | 0 | return (TIFFReadDirEntryErrOk); |
634 | 0 | } |
635 | 0 | case TIFF_SLONG8: |
636 | 0 | { |
637 | 0 | int64_t m; |
638 | 0 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, &m); |
639 | 0 | if (err != TIFFReadDirEntryErrOk) |
640 | 0 | return (err); |
641 | 0 | err = TIFFReadDirEntryCheckRangeSshortSlong8(m); |
642 | 0 | if (err != TIFFReadDirEntryErrOk) |
643 | 0 | return (err); |
644 | 0 | *value = (int16_t)m; |
645 | 0 | return (TIFFReadDirEntryErrOk); |
646 | 0 | } |
647 | 0 | default: |
648 | 0 | return (TIFFReadDirEntryErrType); |
649 | 0 | } |
650 | 0 | } /*-- TIFFReadDirEntrySshort() --*/ |
651 | | |
652 | | static enum TIFFReadDirEntryErr |
653 | | TIFFReadDirEntryLong(TIFF *tif, TIFFDirEntry *direntry, uint32_t *value) |
654 | 1.70k | { |
655 | 1.70k | enum TIFFReadDirEntryErr err; |
656 | 1.70k | if (direntry->tdir_count != 1) |
657 | 43 | return (TIFFReadDirEntryErrCount); |
658 | 1.66k | switch (direntry->tdir_type) |
659 | 1.66k | { |
660 | 99 | case TIFF_BYTE: |
661 | 99 | { |
662 | 99 | uint8_t m; |
663 | 99 | TIFFReadDirEntryCheckedByte(tif, direntry, &m); |
664 | 99 | *value = (uint32_t)m; |
665 | 99 | return (TIFFReadDirEntryErrOk); |
666 | 0 | } |
667 | 20 | case TIFF_SBYTE: |
668 | 20 | { |
669 | 20 | int8_t m; |
670 | 20 | TIFFReadDirEntryCheckedSbyte(tif, direntry, &m); |
671 | 20 | err = TIFFReadDirEntryCheckRangeLongSbyte(m); |
672 | 20 | if (err != TIFFReadDirEntryErrOk) |
673 | 0 | return (err); |
674 | 20 | *value = (uint32_t)m; |
675 | 20 | return (TIFFReadDirEntryErrOk); |
676 | 20 | } |
677 | 1.12k | case TIFF_SHORT: |
678 | 1.12k | { |
679 | 1.12k | uint16_t m; |
680 | 1.12k | TIFFReadDirEntryCheckedShort(tif, direntry, &m); |
681 | 1.12k | *value = (uint32_t)m; |
682 | 1.12k | return (TIFFReadDirEntryErrOk); |
683 | 20 | } |
684 | 46 | case TIFF_SSHORT: |
685 | 46 | { |
686 | 46 | int16_t m; |
687 | 46 | TIFFReadDirEntryCheckedSshort(tif, direntry, &m); |
688 | 46 | err = TIFFReadDirEntryCheckRangeLongSshort(m); |
689 | 46 | if (err != TIFFReadDirEntryErrOk) |
690 | 0 | return (err); |
691 | 46 | *value = (uint32_t)m; |
692 | 46 | return (TIFFReadDirEntryErrOk); |
693 | 46 | } |
694 | 296 | case TIFF_LONG: |
695 | 296 | TIFFReadDirEntryCheckedLong(tif, direntry, value); |
696 | 296 | return (TIFFReadDirEntryErrOk); |
697 | 52 | case TIFF_SLONG: |
698 | 52 | { |
699 | 52 | int32_t m; |
700 | 52 | TIFFReadDirEntryCheckedSlong(tif, direntry, &m); |
701 | 52 | err = TIFFReadDirEntryCheckRangeLongSlong(m); |
702 | 52 | if (err != TIFFReadDirEntryErrOk) |
703 | 1 | return (err); |
704 | 51 | *value = (uint32_t)m; |
705 | 51 | return (TIFFReadDirEntryErrOk); |
706 | 52 | } |
707 | 12 | case TIFF_LONG8: |
708 | 12 | { |
709 | 12 | uint64_t m; |
710 | 12 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, &m); |
711 | 12 | if (err != TIFFReadDirEntryErrOk) |
712 | 4 | return (err); |
713 | 8 | err = TIFFReadDirEntryCheckRangeLongLong8(m); |
714 | 8 | if (err != TIFFReadDirEntryErrOk) |
715 | 5 | return (err); |
716 | 3 | *value = (uint32_t)m; |
717 | 3 | return (TIFFReadDirEntryErrOk); |
718 | 8 | } |
719 | 16 | case TIFF_SLONG8: |
720 | 16 | { |
721 | 16 | int64_t m; |
722 | 16 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, &m); |
723 | 16 | if (err != TIFFReadDirEntryErrOk) |
724 | 3 | return (err); |
725 | 13 | err = TIFFReadDirEntryCheckRangeLongSlong8(m); |
726 | 13 | if (err != TIFFReadDirEntryErrOk) |
727 | 5 | return (err); |
728 | 8 | *value = (uint32_t)m; |
729 | 8 | return (TIFFReadDirEntryErrOk); |
730 | 13 | } |
731 | 1 | default: |
732 | 1 | return (TIFFReadDirEntryErrType); |
733 | 1.66k | } |
734 | 1.66k | } /*-- TIFFReadDirEntryLong() --*/ |
735 | | |
736 | | static enum TIFFReadDirEntryErr |
737 | | TIFFReadDirEntrySlong(TIFF *tif, TIFFDirEntry *direntry, int32_t *value) |
738 | 0 | { |
739 | 0 | enum TIFFReadDirEntryErr err; |
740 | 0 | if (direntry->tdir_count != 1) |
741 | 0 | return (TIFFReadDirEntryErrCount); |
742 | 0 | switch (direntry->tdir_type) |
743 | 0 | { |
744 | 0 | case TIFF_BYTE: |
745 | 0 | { |
746 | 0 | uint8_t m; |
747 | 0 | TIFFReadDirEntryCheckedByte(tif, direntry, &m); |
748 | 0 | *value = (int32_t)m; |
749 | 0 | return (TIFFReadDirEntryErrOk); |
750 | 0 | } |
751 | 0 | case TIFF_SBYTE: |
752 | 0 | { |
753 | 0 | int8_t m; |
754 | 0 | TIFFReadDirEntryCheckedSbyte(tif, direntry, &m); |
755 | 0 | *value = (int32_t)m; |
756 | 0 | return (TIFFReadDirEntryErrOk); |
757 | 0 | } |
758 | 0 | case TIFF_SHORT: |
759 | 0 | { |
760 | 0 | uint16_t m; |
761 | 0 | TIFFReadDirEntryCheckedShort(tif, direntry, &m); |
762 | 0 | *value = (int32_t)m; |
763 | 0 | return (TIFFReadDirEntryErrOk); |
764 | 0 | } |
765 | 0 | case TIFF_SSHORT: |
766 | 0 | { |
767 | 0 | int16_t m; |
768 | 0 | TIFFReadDirEntryCheckedSshort(tif, direntry, &m); |
769 | 0 | *value = (int32_t)m; |
770 | 0 | return (TIFFReadDirEntryErrOk); |
771 | 0 | } |
772 | 0 | case TIFF_LONG: |
773 | 0 | { |
774 | 0 | uint32_t m; |
775 | 0 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
776 | 0 | err = TIFFReadDirEntryCheckRangeSlongLong(m); |
777 | 0 | if (err != TIFFReadDirEntryErrOk) |
778 | 0 | return (err); |
779 | 0 | *value = (int32_t)m; |
780 | 0 | return (TIFFReadDirEntryErrOk); |
781 | 0 | } |
782 | 0 | case TIFF_SLONG: |
783 | 0 | TIFFReadDirEntryCheckedSlong(tif, direntry, value); |
784 | 0 | return (TIFFReadDirEntryErrOk); |
785 | 0 | case TIFF_LONG8: |
786 | 0 | { |
787 | 0 | uint64_t m; |
788 | 0 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, &m); |
789 | 0 | if (err != TIFFReadDirEntryErrOk) |
790 | 0 | return (err); |
791 | 0 | err = TIFFReadDirEntryCheckRangeSlongLong8(m); |
792 | 0 | if (err != TIFFReadDirEntryErrOk) |
793 | 0 | return (err); |
794 | 0 | *value = (int32_t)m; |
795 | 0 | return (TIFFReadDirEntryErrOk); |
796 | 0 | } |
797 | 0 | case TIFF_SLONG8: |
798 | 0 | { |
799 | 0 | int64_t m; |
800 | 0 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, &m); |
801 | 0 | if (err != TIFFReadDirEntryErrOk) |
802 | 0 | return (err); |
803 | 0 | err = TIFFReadDirEntryCheckRangeSlongSlong8(m); |
804 | 0 | if (err != TIFFReadDirEntryErrOk) |
805 | 0 | return (err); |
806 | 0 | *value = (int32_t)m; |
807 | 0 | return (TIFFReadDirEntryErrOk); |
808 | 0 | } |
809 | 0 | default: |
810 | 0 | return (TIFFReadDirEntryErrType); |
811 | 0 | } |
812 | 0 | } /*-- TIFFReadDirEntrySlong() --*/ |
813 | | |
814 | | static enum TIFFReadDirEntryErr |
815 | | TIFFReadDirEntryLong8(TIFF *tif, TIFFDirEntry *direntry, uint64_t *value) |
816 | 0 | { |
817 | 0 | enum TIFFReadDirEntryErr err; |
818 | 0 | if (direntry->tdir_count != 1) |
819 | 0 | return (TIFFReadDirEntryErrCount); |
820 | 0 | switch (direntry->tdir_type) |
821 | 0 | { |
822 | 0 | case TIFF_BYTE: |
823 | 0 | { |
824 | 0 | uint8_t m; |
825 | 0 | TIFFReadDirEntryCheckedByte(tif, direntry, &m); |
826 | 0 | *value = (uint64_t)m; |
827 | 0 | return (TIFFReadDirEntryErrOk); |
828 | 0 | } |
829 | 0 | case TIFF_SBYTE: |
830 | 0 | { |
831 | 0 | int8_t m; |
832 | 0 | TIFFReadDirEntryCheckedSbyte(tif, direntry, &m); |
833 | 0 | err = TIFFReadDirEntryCheckRangeLong8Sbyte(m); |
834 | 0 | if (err != TIFFReadDirEntryErrOk) |
835 | 0 | return (err); |
836 | 0 | *value = (uint64_t)m; |
837 | 0 | return (TIFFReadDirEntryErrOk); |
838 | 0 | } |
839 | 0 | case TIFF_SHORT: |
840 | 0 | { |
841 | 0 | uint16_t m; |
842 | 0 | TIFFReadDirEntryCheckedShort(tif, direntry, &m); |
843 | 0 | *value = (uint64_t)m; |
844 | 0 | return (TIFFReadDirEntryErrOk); |
845 | 0 | } |
846 | 0 | case TIFF_SSHORT: |
847 | 0 | { |
848 | 0 | int16_t m; |
849 | 0 | TIFFReadDirEntryCheckedSshort(tif, direntry, &m); |
850 | 0 | err = TIFFReadDirEntryCheckRangeLong8Sshort(m); |
851 | 0 | if (err != TIFFReadDirEntryErrOk) |
852 | 0 | return (err); |
853 | 0 | *value = (uint64_t)m; |
854 | 0 | return (TIFFReadDirEntryErrOk); |
855 | 0 | } |
856 | 0 | case TIFF_LONG: |
857 | 0 | { |
858 | 0 | uint32_t m; |
859 | 0 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
860 | 0 | *value = (uint64_t)m; |
861 | 0 | return (TIFFReadDirEntryErrOk); |
862 | 0 | } |
863 | 0 | case TIFF_SLONG: |
864 | 0 | { |
865 | 0 | int32_t m; |
866 | 0 | TIFFReadDirEntryCheckedSlong(tif, direntry, &m); |
867 | 0 | err = TIFFReadDirEntryCheckRangeLong8Slong(m); |
868 | 0 | if (err != TIFFReadDirEntryErrOk) |
869 | 0 | return (err); |
870 | 0 | *value = (uint64_t)m; |
871 | 0 | return (TIFFReadDirEntryErrOk); |
872 | 0 | } |
873 | 0 | case TIFF_LONG8: |
874 | 0 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, value); |
875 | 0 | return (err); |
876 | 0 | case TIFF_SLONG8: |
877 | 0 | { |
878 | 0 | int64_t m; |
879 | 0 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, &m); |
880 | 0 | if (err != TIFFReadDirEntryErrOk) |
881 | 0 | return (err); |
882 | 0 | err = TIFFReadDirEntryCheckRangeLong8Slong8(m); |
883 | 0 | if (err != TIFFReadDirEntryErrOk) |
884 | 0 | return (err); |
885 | 0 | *value = (uint64_t)m; |
886 | 0 | return (TIFFReadDirEntryErrOk); |
887 | 0 | } |
888 | 0 | default: |
889 | 0 | return (TIFFReadDirEntryErrType); |
890 | 0 | } |
891 | 0 | } /*-- TIFFReadDirEntryLong8() --*/ |
892 | | |
893 | | static enum TIFFReadDirEntryErr |
894 | | TIFFReadDirEntrySlong8(TIFF *tif, TIFFDirEntry *direntry, int64_t *value) |
895 | 0 | { |
896 | 0 | enum TIFFReadDirEntryErr err; |
897 | 0 | if (direntry->tdir_count != 1) |
898 | 0 | return (TIFFReadDirEntryErrCount); |
899 | 0 | switch (direntry->tdir_type) |
900 | 0 | { |
901 | 0 | case TIFF_BYTE: |
902 | 0 | { |
903 | 0 | uint8_t m; |
904 | 0 | TIFFReadDirEntryCheckedByte(tif, direntry, &m); |
905 | 0 | *value = (int64_t)m; |
906 | 0 | return (TIFFReadDirEntryErrOk); |
907 | 0 | } |
908 | 0 | case TIFF_SBYTE: |
909 | 0 | { |
910 | 0 | int8_t m; |
911 | 0 | TIFFReadDirEntryCheckedSbyte(tif, direntry, &m); |
912 | 0 | *value = (int64_t)m; |
913 | 0 | return (TIFFReadDirEntryErrOk); |
914 | 0 | } |
915 | 0 | case TIFF_SHORT: |
916 | 0 | { |
917 | 0 | uint16_t m; |
918 | 0 | TIFFReadDirEntryCheckedShort(tif, direntry, &m); |
919 | 0 | *value = (int64_t)m; |
920 | 0 | return (TIFFReadDirEntryErrOk); |
921 | 0 | } |
922 | 0 | case TIFF_SSHORT: |
923 | 0 | { |
924 | 0 | int16_t m; |
925 | 0 | TIFFReadDirEntryCheckedSshort(tif, direntry, &m); |
926 | 0 | *value = (int64_t)m; |
927 | 0 | return (TIFFReadDirEntryErrOk); |
928 | 0 | } |
929 | 0 | case TIFF_LONG: |
930 | 0 | { |
931 | 0 | uint32_t m; |
932 | 0 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
933 | 0 | *value = (int64_t)m; |
934 | 0 | return (TIFFReadDirEntryErrOk); |
935 | 0 | } |
936 | 0 | case TIFF_SLONG: |
937 | 0 | { |
938 | 0 | int32_t m; |
939 | 0 | TIFFReadDirEntryCheckedSlong(tif, direntry, &m); |
940 | 0 | *value = (int64_t)m; |
941 | 0 | return (TIFFReadDirEntryErrOk); |
942 | 0 | } |
943 | 0 | case TIFF_LONG8: |
944 | 0 | { |
945 | 0 | uint64_t m; |
946 | 0 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, &m); |
947 | 0 | if (err != TIFFReadDirEntryErrOk) |
948 | 0 | return (err); |
949 | 0 | err = TIFFReadDirEntryCheckRangeSlong8Long8(m); |
950 | 0 | if (err != TIFFReadDirEntryErrOk) |
951 | 0 | return (err); |
952 | 0 | *value = (int64_t)m; |
953 | 0 | return (TIFFReadDirEntryErrOk); |
954 | 0 | } |
955 | 0 | case TIFF_SLONG8: |
956 | 0 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, value); |
957 | 0 | return (err); |
958 | 0 | default: |
959 | 0 | return (TIFFReadDirEntryErrType); |
960 | 0 | } |
961 | 0 | } /*-- TIFFReadDirEntrySlong8() --*/ |
962 | | |
963 | | static enum TIFFReadDirEntryErr |
964 | | TIFFReadDirEntryFloat(TIFF *tif, TIFFDirEntry *direntry, float *value) |
965 | 190 | { |
966 | 190 | enum TIFFReadDirEntryErr err; |
967 | 190 | if (direntry->tdir_count != 1) |
968 | 40 | return (TIFFReadDirEntryErrCount); |
969 | 150 | switch (direntry->tdir_type) |
970 | 150 | { |
971 | 4 | case TIFF_BYTE: |
972 | 4 | { |
973 | 4 | uint8_t m; |
974 | 4 | TIFFReadDirEntryCheckedByte(tif, direntry, &m); |
975 | 4 | *value = (float)m; |
976 | 4 | return (TIFFReadDirEntryErrOk); |
977 | 0 | } |
978 | 2 | case TIFF_SBYTE: |
979 | 2 | { |
980 | 2 | int8_t m; |
981 | 2 | TIFFReadDirEntryCheckedSbyte(tif, direntry, &m); |
982 | 2 | *value = (float)m; |
983 | 2 | return (TIFFReadDirEntryErrOk); |
984 | 0 | } |
985 | 5 | case TIFF_SHORT: |
986 | 5 | { |
987 | 5 | uint16_t m; |
988 | 5 | TIFFReadDirEntryCheckedShort(tif, direntry, &m); |
989 | 5 | *value = (float)m; |
990 | 5 | return (TIFFReadDirEntryErrOk); |
991 | 0 | } |
992 | 1 | case TIFF_SSHORT: |
993 | 1 | { |
994 | 1 | int16_t m; |
995 | 1 | TIFFReadDirEntryCheckedSshort(tif, direntry, &m); |
996 | 1 | *value = (float)m; |
997 | 1 | return (TIFFReadDirEntryErrOk); |
998 | 0 | } |
999 | 18 | case TIFF_LONG: |
1000 | 18 | { |
1001 | 18 | uint32_t m; |
1002 | 18 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
1003 | 18 | *value = (float)m; |
1004 | 18 | return (TIFFReadDirEntryErrOk); |
1005 | 0 | } |
1006 | 3 | case TIFF_SLONG: |
1007 | 3 | { |
1008 | 3 | int32_t m; |
1009 | 3 | TIFFReadDirEntryCheckedSlong(tif, direntry, &m); |
1010 | 3 | *value = (float)m; |
1011 | 3 | return (TIFFReadDirEntryErrOk); |
1012 | 0 | } |
1013 | 5 | case TIFF_LONG8: |
1014 | 5 | { |
1015 | 5 | uint64_t m; |
1016 | 5 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, &m); |
1017 | 5 | if (err != TIFFReadDirEntryErrOk) |
1018 | 3 | return (err); |
1019 | 2 | *value = (float)m; |
1020 | 2 | return (TIFFReadDirEntryErrOk); |
1021 | 5 | } |
1022 | 8 | case TIFF_SLONG8: |
1023 | 8 | { |
1024 | 8 | int64_t m; |
1025 | 8 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, &m); |
1026 | 8 | if (err != TIFFReadDirEntryErrOk) |
1027 | 6 | return (err); |
1028 | 2 | *value = (float)m; |
1029 | 2 | return (TIFFReadDirEntryErrOk); |
1030 | 8 | } |
1031 | 52 | case TIFF_RATIONAL: |
1032 | 52 | { |
1033 | 52 | double m; |
1034 | 52 | err = TIFFReadDirEntryCheckedRational(tif, direntry, &m); |
1035 | 52 | if (err != TIFFReadDirEntryErrOk) |
1036 | 12 | return (err); |
1037 | 40 | *value = (float)m; |
1038 | 40 | return (TIFFReadDirEntryErrOk); |
1039 | 52 | } |
1040 | 30 | case TIFF_SRATIONAL: |
1041 | 30 | { |
1042 | 30 | double m; |
1043 | 30 | err = TIFFReadDirEntryCheckedSrational(tif, direntry, &m); |
1044 | 30 | if (err != TIFFReadDirEntryErrOk) |
1045 | 12 | return (err); |
1046 | 18 | *value = (float)m; |
1047 | 18 | return (TIFFReadDirEntryErrOk); |
1048 | 30 | } |
1049 | 0 | case TIFF_FLOAT: |
1050 | 0 | TIFFReadDirEntryCheckedFloat(tif, direntry, value); |
1051 | 0 | return (TIFFReadDirEntryErrOk); |
1052 | 10 | case TIFF_DOUBLE: |
1053 | 10 | { |
1054 | 10 | double m; |
1055 | 10 | err = TIFFReadDirEntryCheckedDouble(tif, direntry, &m); |
1056 | 10 | if (err != TIFFReadDirEntryErrOk) |
1057 | 4 | return (err); |
1058 | 6 | if ((m > FLT_MAX) || (m < -FLT_MAX)) |
1059 | 1 | return (TIFFReadDirEntryErrRange); |
1060 | 5 | *value = (float)m; |
1061 | 5 | return (TIFFReadDirEntryErrOk); |
1062 | 6 | } |
1063 | 12 | default: |
1064 | 12 | return (TIFFReadDirEntryErrType); |
1065 | 150 | } |
1066 | 150 | } |
1067 | | |
1068 | | static enum TIFFReadDirEntryErr |
1069 | | TIFFReadDirEntryDouble(TIFF *tif, TIFFDirEntry *direntry, double *value) |
1070 | 10 | { |
1071 | 10 | enum TIFFReadDirEntryErr err; |
1072 | 10 | if (direntry->tdir_count != 1) |
1073 | 3 | return (TIFFReadDirEntryErrCount); |
1074 | 7 | switch (direntry->tdir_type) |
1075 | 7 | { |
1076 | 1 | case TIFF_BYTE: |
1077 | 1 | { |
1078 | 1 | uint8_t m; |
1079 | 1 | TIFFReadDirEntryCheckedByte(tif, direntry, &m); |
1080 | 1 | *value = (double)m; |
1081 | 1 | return (TIFFReadDirEntryErrOk); |
1082 | 0 | } |
1083 | 0 | case TIFF_SBYTE: |
1084 | 0 | { |
1085 | 0 | int8_t m; |
1086 | 0 | TIFFReadDirEntryCheckedSbyte(tif, direntry, &m); |
1087 | 0 | *value = (double)m; |
1088 | 0 | return (TIFFReadDirEntryErrOk); |
1089 | 0 | } |
1090 | 1 | case TIFF_SHORT: |
1091 | 1 | { |
1092 | 1 | uint16_t m; |
1093 | 1 | TIFFReadDirEntryCheckedShort(tif, direntry, &m); |
1094 | 1 | *value = (double)m; |
1095 | 1 | return (TIFFReadDirEntryErrOk); |
1096 | 0 | } |
1097 | 1 | case TIFF_SSHORT: |
1098 | 1 | { |
1099 | 1 | int16_t m; |
1100 | 1 | TIFFReadDirEntryCheckedSshort(tif, direntry, &m); |
1101 | 1 | *value = (double)m; |
1102 | 1 | return (TIFFReadDirEntryErrOk); |
1103 | 0 | } |
1104 | 0 | case TIFF_LONG: |
1105 | 0 | { |
1106 | 0 | uint32_t m; |
1107 | 0 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
1108 | 0 | *value = (double)m; |
1109 | 0 | return (TIFFReadDirEntryErrOk); |
1110 | 0 | } |
1111 | 1 | case TIFF_SLONG: |
1112 | 1 | { |
1113 | 1 | int32_t m; |
1114 | 1 | TIFFReadDirEntryCheckedSlong(tif, direntry, &m); |
1115 | 1 | *value = (double)m; |
1116 | 1 | return (TIFFReadDirEntryErrOk); |
1117 | 0 | } |
1118 | 2 | case TIFF_LONG8: |
1119 | 2 | { |
1120 | 2 | uint64_t m; |
1121 | 2 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, &m); |
1122 | 2 | if (err != TIFFReadDirEntryErrOk) |
1123 | 1 | return (err); |
1124 | 1 | *value = (double)m; |
1125 | 1 | return (TIFFReadDirEntryErrOk); |
1126 | 2 | } |
1127 | 0 | case TIFF_SLONG8: |
1128 | 0 | { |
1129 | 0 | int64_t m; |
1130 | 0 | err = TIFFReadDirEntryCheckedSlong8(tif, direntry, &m); |
1131 | 0 | if (err != TIFFReadDirEntryErrOk) |
1132 | 0 | return (err); |
1133 | 0 | *value = (double)m; |
1134 | 0 | return (TIFFReadDirEntryErrOk); |
1135 | 0 | } |
1136 | 0 | case TIFF_RATIONAL: |
1137 | 0 | err = TIFFReadDirEntryCheckedRational(tif, direntry, value); |
1138 | 0 | return (err); |
1139 | 0 | case TIFF_SRATIONAL: |
1140 | 0 | err = TIFFReadDirEntryCheckedSrational(tif, direntry, value); |
1141 | 0 | return (err); |
1142 | 0 | case TIFF_FLOAT: |
1143 | 0 | { |
1144 | 0 | float m; |
1145 | 0 | TIFFReadDirEntryCheckedFloat(tif, direntry, &m); |
1146 | 0 | *value = (double)m; |
1147 | 0 | return (TIFFReadDirEntryErrOk); |
1148 | 0 | } |
1149 | 1 | case TIFF_DOUBLE: |
1150 | 1 | err = TIFFReadDirEntryCheckedDouble(tif, direntry, value); |
1151 | 1 | return (err); |
1152 | 0 | default: |
1153 | 0 | return (TIFFReadDirEntryErrType); |
1154 | 7 | } |
1155 | 7 | } |
1156 | | |
1157 | | static enum TIFFReadDirEntryErr |
1158 | | TIFFReadDirEntryIfd8(TIFF *tif, TIFFDirEntry *direntry, uint64_t *value) |
1159 | 40 | { |
1160 | 40 | enum TIFFReadDirEntryErr err; |
1161 | 40 | if (direntry->tdir_count != 1) |
1162 | 13 | return (TIFFReadDirEntryErrCount); |
1163 | 27 | switch (direntry->tdir_type) |
1164 | 27 | { |
1165 | 15 | case TIFF_LONG: |
1166 | 18 | case TIFF_IFD: |
1167 | 18 | { |
1168 | 18 | uint32_t m; |
1169 | 18 | TIFFReadDirEntryCheckedLong(tif, direntry, &m); |
1170 | 18 | *value = (uint64_t)m; |
1171 | 18 | return (TIFFReadDirEntryErrOk); |
1172 | 15 | } |
1173 | 8 | case TIFF_LONG8: |
1174 | 8 | case TIFF_IFD8: |
1175 | 8 | err = TIFFReadDirEntryCheckedLong8(tif, direntry, value); |
1176 | 8 | return (err); |
1177 | 1 | default: |
1178 | 1 | return (TIFFReadDirEntryErrType); |
1179 | 27 | } |
1180 | 27 | } |
1181 | | |
1182 | 2.42k | #define INITIAL_THRESHOLD (1024 * 1024) |
1183 | 300 | #define THRESHOLD_MULTIPLIER 10 |
1184 | | #define MAX_THRESHOLD \ |
1185 | 75 | (THRESHOLD_MULTIPLIER * THRESHOLD_MULTIPLIER * THRESHOLD_MULTIPLIER * \ |
1186 | 75 | INITIAL_THRESHOLD) |
1187 | | |
1188 | | static enum TIFFReadDirEntryErr TIFFReadDirEntryDataAndRealloc(TIFF *tif, |
1189 | | uint64_t offset, |
1190 | | tmsize_t size, |
1191 | | void **pdest) |
1192 | 2.35k | { |
1193 | 2.35k | #if SIZEOF_SIZE_T == 8 |
1194 | 2.35k | tmsize_t threshold = INITIAL_THRESHOLD; |
1195 | 2.35k | #endif |
1196 | 2.35k | tmsize_t already_read = 0; |
1197 | | |
1198 | 2.35k | assert(!isMapped(tif)); |
1199 | | |
1200 | 2.35k | if (!SeekOK(tif, offset)) |
1201 | 1.00k | return (TIFFReadDirEntryErrIo); |
1202 | | |
1203 | | /* On 64 bit processes, read first a maximum of 1 MB, then 10 MB, etc */ |
1204 | | /* so as to avoid allocating too much memory in case the file is too */ |
1205 | | /* short. We could ask for the file size, but this might be */ |
1206 | | /* expensive with some I/O layers (think of reading a gzipped file) */ |
1207 | | /* Restrict to 64 bit processes, so as to avoid reallocs() */ |
1208 | | /* on 32 bit processes where virtual memory is scarce. */ |
1209 | 2.52k | while (already_read < size) |
1210 | 1.34k | { |
1211 | 1.34k | void *new_dest; |
1212 | 1.34k | tmsize_t bytes_read; |
1213 | 1.34k | tmsize_t to_read = size - already_read; |
1214 | 1.34k | #if SIZEOF_SIZE_T == 8 |
1215 | 1.34k | if (to_read >= threshold && threshold < MAX_THRESHOLD) |
1216 | 75 | { |
1217 | 75 | to_read = threshold; |
1218 | 75 | threshold *= THRESHOLD_MULTIPLIER; |
1219 | 75 | } |
1220 | 1.34k | #endif |
1221 | | |
1222 | 1.34k | new_dest = |
1223 | 1.34k | (uint8_t *)_TIFFreallocExt(tif, *pdest, already_read + to_read); |
1224 | 1.34k | if (new_dest == NULL) |
1225 | 0 | { |
1226 | 0 | TIFFErrorExtR(tif, tif->tif_name, |
1227 | 0 | "Failed to allocate memory for %s " |
1228 | 0 | "(%" TIFF_SSIZE_FORMAT |
1229 | 0 | " elements of %" TIFF_SSIZE_FORMAT " bytes each)", |
1230 | 0 | "TIFFReadDirEntryArray", (tmsize_t)1, |
1231 | 0 | already_read + to_read); |
1232 | 0 | return TIFFReadDirEntryErrAlloc; |
1233 | 0 | } |
1234 | 1.34k | *pdest = new_dest; |
1235 | | |
1236 | 1.34k | bytes_read = TIFFReadFile(tif, (char *)*pdest + already_read, to_read); |
1237 | 1.34k | already_read += bytes_read; |
1238 | 1.34k | if (bytes_read != to_read) |
1239 | 166 | { |
1240 | 166 | return TIFFReadDirEntryErrIo; |
1241 | 166 | } |
1242 | 1.34k | } |
1243 | 1.18k | return TIFFReadDirEntryErrOk; |
1244 | 1.34k | } |
1245 | | |
1246 | | /* Caution: if raising that value, make sure int32 / uint32 overflows can't |
1247 | | * occur elsewhere */ |
1248 | 6.87k | #define MAX_SIZE_TAG_DATA 2147483647U |
1249 | | |
1250 | | static enum TIFFReadDirEntryErr |
1251 | | TIFFReadDirEntryArrayWithLimit(TIFF *tif, TIFFDirEntry *direntry, |
1252 | | uint32_t *count, uint32_t desttypesize, |
1253 | | void **value, uint64_t maxcount) |
1254 | 3.78k | { |
1255 | 3.78k | int typesize; |
1256 | 3.78k | uint32_t datasize; |
1257 | 3.78k | void *data; |
1258 | 3.78k | uint64_t target_count64; |
1259 | 3.78k | int original_datasize_clamped; |
1260 | 3.78k | typesize = TIFFDataWidth(direntry->tdir_type); |
1261 | | |
1262 | 3.78k | target_count64 = |
1263 | 3.78k | (direntry->tdir_count > maxcount) ? maxcount : direntry->tdir_count; |
1264 | | |
1265 | 3.78k | if ((target_count64 == 0) || (typesize == 0)) |
1266 | 218 | { |
1267 | 218 | *value = 0; |
1268 | 218 | return (TIFFReadDirEntryErrOk); |
1269 | 218 | } |
1270 | 3.57k | (void)desttypesize; |
1271 | | |
1272 | | /* We just want to know if the original tag size is more than 4 bytes |
1273 | | * (classic TIFF) or 8 bytes (BigTIFF) |
1274 | | */ |
1275 | 3.57k | original_datasize_clamped = |
1276 | 3.57k | ((direntry->tdir_count > 10) ? 10 : (int)direntry->tdir_count) * |
1277 | 3.57k | typesize; |
1278 | | |
1279 | | /* |
1280 | | * As a sanity check, make sure we have no more than a 2GB tag array |
1281 | | * in either the current data type or the dest data type. This also |
1282 | | * avoids problems with overflow of tmsize_t on 32bit systems. |
1283 | | */ |
1284 | 3.57k | if ((uint64_t)(MAX_SIZE_TAG_DATA / typesize) < target_count64) |
1285 | 272 | return (TIFFReadDirEntryErrSizesan); |
1286 | 3.29k | if ((uint64_t)(MAX_SIZE_TAG_DATA / desttypesize) < target_count64) |
1287 | 4 | return (TIFFReadDirEntryErrSizesan); |
1288 | | |
1289 | 3.29k | *count = (uint32_t)target_count64; |
1290 | 3.29k | datasize = (*count) * typesize; |
1291 | 3.29k | assert((tmsize_t)datasize > 0); |
1292 | | |
1293 | 3.29k | if (datasize > 100 * 1024 * 1024) |
1294 | 213 | { |
1295 | | /* Before allocating a huge amount of memory for corrupted files, check |
1296 | | * if size of requested memory is not greater than file size. |
1297 | | */ |
1298 | 213 | const uint64_t filesize = TIFFGetFileSize(tif); |
1299 | 213 | if (datasize > filesize) |
1300 | 213 | { |
1301 | 213 | TIFFWarningExtR(tif, "ReadDirEntryArray", |
1302 | 213 | "Requested memory size for tag %d (0x%x) %" PRIu32 |
1303 | 213 | " is greater than filesize %" PRIu64 |
1304 | 213 | ". Memory not allocated, tag not read", |
1305 | 213 | direntry->tdir_tag, direntry->tdir_tag, datasize, |
1306 | 213 | filesize); |
1307 | 213 | return (TIFFReadDirEntryErrAlloc); |
1308 | 213 | } |
1309 | 213 | } |
1310 | | |
1311 | 3.08k | if (isMapped(tif) && datasize > (uint64_t)tif->tif_size) |
1312 | 0 | return TIFFReadDirEntryErrIo; |
1313 | | |
1314 | 3.08k | if (!isMapped(tif) && (((tif->tif_flags & TIFF_BIGTIFF) && datasize > 8) || |
1315 | 3.07k | (!(tif->tif_flags & TIFF_BIGTIFF) && datasize > 4))) |
1316 | 2.14k | { |
1317 | 2.14k | data = NULL; |
1318 | 2.14k | } |
1319 | 940 | else |
1320 | 940 | { |
1321 | 940 | data = _TIFFCheckMalloc(tif, *count, typesize, "ReadDirEntryArray"); |
1322 | 940 | if (data == 0) |
1323 | 0 | return (TIFFReadDirEntryErrAlloc); |
1324 | 940 | } |
1325 | 3.08k | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
1326 | 3.02k | { |
1327 | | /* Only the condition on original_datasize_clamped. The second |
1328 | | * one is implied, but Coverity Scan cannot see it. */ |
1329 | 3.02k | if (original_datasize_clamped <= 4 && datasize <= 4) |
1330 | 703 | _TIFFmemcpy(data, &direntry->tdir_offset, datasize); |
1331 | 2.32k | else |
1332 | 2.32k | { |
1333 | 2.32k | enum TIFFReadDirEntryErr err; |
1334 | 2.32k | uint32_t offset = direntry->tdir_offset.toff_long; |
1335 | 2.32k | if (tif->tif_flags & TIFF_SWAB) |
1336 | 265 | TIFFSwabLong(&offset); |
1337 | 2.32k | if (isMapped(tif)) |
1338 | 0 | err = TIFFReadDirEntryData(tif, (uint64_t)offset, |
1339 | 0 | (tmsize_t)datasize, data); |
1340 | 2.32k | else |
1341 | 2.32k | err = TIFFReadDirEntryDataAndRealloc(tif, (uint64_t)offset, |
1342 | 2.32k | (tmsize_t)datasize, &data); |
1343 | 2.32k | if (err != TIFFReadDirEntryErrOk) |
1344 | 1.16k | { |
1345 | 1.16k | _TIFFfreeExt(tif, data); |
1346 | 1.16k | return (err); |
1347 | 1.16k | } |
1348 | 2.32k | } |
1349 | 3.02k | } |
1350 | 53 | else |
1351 | 53 | { |
1352 | | /* See above comment for the Classic TIFF case */ |
1353 | 53 | if (original_datasize_clamped <= 8 && datasize <= 8) |
1354 | 25 | _TIFFmemcpy(data, &direntry->tdir_offset, datasize); |
1355 | 28 | else |
1356 | 28 | { |
1357 | 28 | enum TIFFReadDirEntryErr err; |
1358 | 28 | uint64_t offset = direntry->tdir_offset.toff_long8; |
1359 | 28 | if (tif->tif_flags & TIFF_SWAB) |
1360 | 12 | TIFFSwabLong8(&offset); |
1361 | 28 | if (isMapped(tif)) |
1362 | 0 | err = TIFFReadDirEntryData(tif, (uint64_t)offset, |
1363 | 0 | (tmsize_t)datasize, data); |
1364 | 28 | else |
1365 | 28 | err = TIFFReadDirEntryDataAndRealloc(tif, (uint64_t)offset, |
1366 | 28 | (tmsize_t)datasize, &data); |
1367 | 28 | if (err != TIFFReadDirEntryErrOk) |
1368 | 10 | { |
1369 | 10 | _TIFFfreeExt(tif, data); |
1370 | 10 | return (err); |
1371 | 10 | } |
1372 | 28 | } |
1373 | 53 | } |
1374 | 1.90k | *value = data; |
1375 | 1.90k | return (TIFFReadDirEntryErrOk); |
1376 | 3.08k | } |
1377 | | |
1378 | | static enum TIFFReadDirEntryErr |
1379 | | TIFFReadDirEntryArray(TIFF *tif, TIFFDirEntry *direntry, uint32_t *count, |
1380 | | uint32_t desttypesize, void **value) |
1381 | 3.02k | { |
1382 | 3.02k | return TIFFReadDirEntryArrayWithLimit(tif, direntry, count, desttypesize, |
1383 | 3.02k | value, ~((uint64_t)0)); |
1384 | 3.02k | } |
1385 | | |
1386 | | static enum TIFFReadDirEntryErr |
1387 | | TIFFReadDirEntryByteArray(TIFF *tif, TIFFDirEntry *direntry, uint8_t **value) |
1388 | 929 | { |
1389 | 929 | enum TIFFReadDirEntryErr err; |
1390 | 929 | uint32_t count; |
1391 | 929 | void *origdata; |
1392 | 929 | uint8_t *data; |
1393 | 929 | switch (direntry->tdir_type) |
1394 | 929 | { |
1395 | 348 | case TIFF_ASCII: |
1396 | 398 | case TIFF_UNDEFINED: |
1397 | 788 | case TIFF_BYTE: |
1398 | 795 | case TIFF_SBYTE: |
1399 | 829 | case TIFF_SHORT: |
1400 | 835 | case TIFF_SSHORT: |
1401 | 845 | case TIFF_LONG: |
1402 | 851 | case TIFF_SLONG: |
1403 | 864 | case TIFF_LONG8: |
1404 | 886 | case TIFF_SLONG8: |
1405 | 886 | break; |
1406 | 43 | default: |
1407 | 43 | return (TIFFReadDirEntryErrType); |
1408 | 929 | } |
1409 | 886 | err = TIFFReadDirEntryArray(tif, direntry, &count, 1, &origdata); |
1410 | 886 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
1411 | 603 | { |
1412 | 603 | *value = 0; |
1413 | 603 | return (err); |
1414 | 603 | } |
1415 | 283 | switch (direntry->tdir_type) |
1416 | 283 | { |
1417 | 141 | case TIFF_ASCII: |
1418 | 165 | case TIFF_UNDEFINED: |
1419 | 214 | case TIFF_BYTE: |
1420 | 214 | *value = (uint8_t *)origdata; |
1421 | 214 | return (TIFFReadDirEntryErrOk); |
1422 | 6 | case TIFF_SBYTE: |
1423 | 6 | { |
1424 | 6 | int8_t *m; |
1425 | 6 | uint32_t n; |
1426 | 6 | m = (int8_t *)origdata; |
1427 | 25 | for (n = 0; n < count; n++) |
1428 | 22 | { |
1429 | 22 | err = TIFFReadDirEntryCheckRangeByteSbyte(*m); |
1430 | 22 | if (err != TIFFReadDirEntryErrOk) |
1431 | 3 | { |
1432 | 3 | _TIFFfreeExt(tif, origdata); |
1433 | 3 | return (err); |
1434 | 3 | } |
1435 | 19 | m++; |
1436 | 19 | } |
1437 | 3 | *value = (uint8_t *)origdata; |
1438 | 3 | return (TIFFReadDirEntryErrOk); |
1439 | 6 | } |
1440 | 283 | } |
1441 | 63 | data = (uint8_t *)_TIFFmallocExt(tif, count); |
1442 | 63 | if (data == 0) |
1443 | 0 | { |
1444 | 0 | _TIFFfreeExt(tif, origdata); |
1445 | 0 | return (TIFFReadDirEntryErrAlloc); |
1446 | 0 | } |
1447 | 63 | switch (direntry->tdir_type) |
1448 | 63 | { |
1449 | 15 | case TIFF_SHORT: |
1450 | 15 | { |
1451 | 15 | uint16_t *ma; |
1452 | 15 | uint8_t *mb; |
1453 | 15 | uint32_t n; |
1454 | 15 | ma = (uint16_t *)origdata; |
1455 | 15 | mb = data; |
1456 | 67 | for (n = 0; n < count; n++) |
1457 | 58 | { |
1458 | 58 | if (tif->tif_flags & TIFF_SWAB) |
1459 | 9 | TIFFSwabShort(ma); |
1460 | 58 | err = TIFFReadDirEntryCheckRangeByteShort(*ma); |
1461 | 58 | if (err != TIFFReadDirEntryErrOk) |
1462 | 6 | break; |
1463 | 52 | *mb++ = (uint8_t)(*ma++); |
1464 | 52 | } |
1465 | 15 | } |
1466 | 15 | break; |
1467 | 3 | case TIFF_SSHORT: |
1468 | 3 | { |
1469 | 3 | int16_t *ma; |
1470 | 3 | uint8_t *mb; |
1471 | 3 | uint32_t n; |
1472 | 3 | ma = (int16_t *)origdata; |
1473 | 3 | mb = data; |
1474 | 179 | for (n = 0; n < count; n++) |
1475 | 177 | { |
1476 | 177 | if (tif->tif_flags & TIFF_SWAB) |
1477 | 135 | TIFFSwabShort((uint16_t *)ma); |
1478 | 177 | err = TIFFReadDirEntryCheckRangeByteSshort(*ma); |
1479 | 177 | if (err != TIFFReadDirEntryErrOk) |
1480 | 1 | break; |
1481 | 176 | *mb++ = (uint8_t)(*ma++); |
1482 | 176 | } |
1483 | 3 | } |
1484 | 3 | break; |
1485 | 9 | case TIFF_LONG: |
1486 | 9 | { |
1487 | 9 | uint32_t *ma; |
1488 | 9 | uint8_t *mb; |
1489 | 9 | uint32_t n; |
1490 | 9 | ma = (uint32_t *)origdata; |
1491 | 9 | mb = data; |
1492 | 43 | for (n = 0; n < count; n++) |
1493 | 37 | { |
1494 | 37 | if (tif->tif_flags & TIFF_SWAB) |
1495 | 3 | TIFFSwabLong(ma); |
1496 | 37 | err = TIFFReadDirEntryCheckRangeByteLong(*ma); |
1497 | 37 | if (err != TIFFReadDirEntryErrOk) |
1498 | 3 | break; |
1499 | 34 | *mb++ = (uint8_t)(*ma++); |
1500 | 34 | } |
1501 | 9 | } |
1502 | 9 | break; |
1503 | 6 | case TIFF_SLONG: |
1504 | 6 | { |
1505 | 6 | int32_t *ma; |
1506 | 6 | uint8_t *mb; |
1507 | 6 | uint32_t n; |
1508 | 6 | ma = (int32_t *)origdata; |
1509 | 6 | mb = data; |
1510 | 29 | for (n = 0; n < count; n++) |
1511 | 26 | { |
1512 | 26 | if (tif->tif_flags & TIFF_SWAB) |
1513 | 2 | TIFFSwabLong((uint32_t *)ma); |
1514 | 26 | err = TIFFReadDirEntryCheckRangeByteSlong(*ma); |
1515 | 26 | if (err != TIFFReadDirEntryErrOk) |
1516 | 3 | break; |
1517 | 23 | *mb++ = (uint8_t)(*ma++); |
1518 | 23 | } |
1519 | 6 | } |
1520 | 6 | break; |
1521 | 10 | case TIFF_LONG8: |
1522 | 10 | { |
1523 | 10 | uint64_t *ma; |
1524 | 10 | uint8_t *mb; |
1525 | 10 | uint32_t n; |
1526 | 10 | ma = (uint64_t *)origdata; |
1527 | 10 | mb = data; |
1528 | 47 | for (n = 0; n < count; n++) |
1529 | 46 | { |
1530 | 46 | if (tif->tif_flags & TIFF_SWAB) |
1531 | 38 | TIFFSwabLong8(ma); |
1532 | 46 | err = TIFFReadDirEntryCheckRangeByteLong8(*ma); |
1533 | 46 | if (err != TIFFReadDirEntryErrOk) |
1534 | 9 | break; |
1535 | 37 | *mb++ = (uint8_t)(*ma++); |
1536 | 37 | } |
1537 | 10 | } |
1538 | 10 | break; |
1539 | 20 | case TIFF_SLONG8: |
1540 | 20 | { |
1541 | 20 | int64_t *ma; |
1542 | 20 | uint8_t *mb; |
1543 | 20 | uint32_t n; |
1544 | 20 | ma = (int64_t *)origdata; |
1545 | 20 | mb = data; |
1546 | 286 | for (n = 0; n < count; n++) |
1547 | 281 | { |
1548 | 281 | if (tif->tif_flags & TIFF_SWAB) |
1549 | 137 | TIFFSwabLong8((uint64_t *)ma); |
1550 | 281 | err = TIFFReadDirEntryCheckRangeByteSlong8(*ma); |
1551 | 281 | if (err != TIFFReadDirEntryErrOk) |
1552 | 15 | break; |
1553 | 266 | *mb++ = (uint8_t)(*ma++); |
1554 | 266 | } |
1555 | 20 | } |
1556 | 20 | break; |
1557 | 63 | } |
1558 | 63 | _TIFFfreeExt(tif, origdata); |
1559 | 63 | if (err != TIFFReadDirEntryErrOk) |
1560 | 37 | { |
1561 | 37 | _TIFFfreeExt(tif, data); |
1562 | 37 | return (err); |
1563 | 37 | } |
1564 | 26 | *value = data; |
1565 | 26 | return (TIFFReadDirEntryErrOk); |
1566 | 63 | } |
1567 | | |
1568 | | static enum TIFFReadDirEntryErr |
1569 | | TIFFReadDirEntrySbyteArray(TIFF *tif, TIFFDirEntry *direntry, int8_t **value) |
1570 | 60 | { |
1571 | 60 | enum TIFFReadDirEntryErr err; |
1572 | 60 | uint32_t count; |
1573 | 60 | void *origdata; |
1574 | 60 | int8_t *data; |
1575 | 60 | switch (direntry->tdir_type) |
1576 | 60 | { |
1577 | 0 | case TIFF_UNDEFINED: |
1578 | 0 | case TIFF_BYTE: |
1579 | 60 | case TIFF_SBYTE: |
1580 | 60 | case TIFF_SHORT: |
1581 | 60 | case TIFF_SSHORT: |
1582 | 60 | case TIFF_LONG: |
1583 | 60 | case TIFF_SLONG: |
1584 | 60 | case TIFF_LONG8: |
1585 | 60 | case TIFF_SLONG8: |
1586 | 60 | break; |
1587 | 0 | default: |
1588 | 0 | return (TIFFReadDirEntryErrType); |
1589 | 60 | } |
1590 | 60 | err = TIFFReadDirEntryArray(tif, direntry, &count, 1, &origdata); |
1591 | 60 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
1592 | 53 | { |
1593 | 53 | *value = 0; |
1594 | 53 | return (err); |
1595 | 53 | } |
1596 | 7 | switch (direntry->tdir_type) |
1597 | 7 | { |
1598 | 0 | case TIFF_UNDEFINED: |
1599 | 0 | case TIFF_BYTE: |
1600 | 0 | { |
1601 | 0 | uint8_t *m; |
1602 | 0 | uint32_t n; |
1603 | 0 | m = (uint8_t *)origdata; |
1604 | 0 | for (n = 0; n < count; n++) |
1605 | 0 | { |
1606 | 0 | err = TIFFReadDirEntryCheckRangeSbyteByte(*m); |
1607 | 0 | if (err != TIFFReadDirEntryErrOk) |
1608 | 0 | { |
1609 | 0 | _TIFFfreeExt(tif, origdata); |
1610 | 0 | return (err); |
1611 | 0 | } |
1612 | 0 | m++; |
1613 | 0 | } |
1614 | 0 | *value = (int8_t *)origdata; |
1615 | 0 | return (TIFFReadDirEntryErrOk); |
1616 | 0 | } |
1617 | 7 | case TIFF_SBYTE: |
1618 | 7 | *value = (int8_t *)origdata; |
1619 | 7 | return (TIFFReadDirEntryErrOk); |
1620 | 7 | } |
1621 | 0 | data = (int8_t *)_TIFFmallocExt(tif, count); |
1622 | 0 | if (data == 0) |
1623 | 0 | { |
1624 | 0 | _TIFFfreeExt(tif, origdata); |
1625 | 0 | return (TIFFReadDirEntryErrAlloc); |
1626 | 0 | } |
1627 | 0 | switch (direntry->tdir_type) |
1628 | 0 | { |
1629 | 0 | case TIFF_SHORT: |
1630 | 0 | { |
1631 | 0 | uint16_t *ma; |
1632 | 0 | int8_t *mb; |
1633 | 0 | uint32_t n; |
1634 | 0 | ma = (uint16_t *)origdata; |
1635 | 0 | mb = data; |
1636 | 0 | for (n = 0; n < count; n++) |
1637 | 0 | { |
1638 | 0 | if (tif->tif_flags & TIFF_SWAB) |
1639 | 0 | TIFFSwabShort(ma); |
1640 | 0 | err = TIFFReadDirEntryCheckRangeSbyteShort(*ma); |
1641 | 0 | if (err != TIFFReadDirEntryErrOk) |
1642 | 0 | break; |
1643 | 0 | *mb++ = (int8_t)(*ma++); |
1644 | 0 | } |
1645 | 0 | } |
1646 | 0 | break; |
1647 | 0 | case TIFF_SSHORT: |
1648 | 0 | { |
1649 | 0 | int16_t *ma; |
1650 | 0 | int8_t *mb; |
1651 | 0 | uint32_t n; |
1652 | 0 | ma = (int16_t *)origdata; |
1653 | 0 | mb = data; |
1654 | 0 | for (n = 0; n < count; n++) |
1655 | 0 | { |
1656 | 0 | if (tif->tif_flags & TIFF_SWAB) |
1657 | 0 | TIFFSwabShort((uint16_t *)ma); |
1658 | 0 | err = TIFFReadDirEntryCheckRangeSbyteSshort(*ma); |
1659 | 0 | if (err != TIFFReadDirEntryErrOk) |
1660 | 0 | break; |
1661 | 0 | *mb++ = (int8_t)(*ma++); |
1662 | 0 | } |
1663 | 0 | } |
1664 | 0 | break; |
1665 | 0 | case TIFF_LONG: |
1666 | 0 | { |
1667 | 0 | uint32_t *ma; |
1668 | 0 | int8_t *mb; |
1669 | 0 | uint32_t n; |
1670 | 0 | ma = (uint32_t *)origdata; |
1671 | 0 | mb = data; |
1672 | 0 | for (n = 0; n < count; n++) |
1673 | 0 | { |
1674 | 0 | if (tif->tif_flags & TIFF_SWAB) |
1675 | 0 | TIFFSwabLong(ma); |
1676 | 0 | err = TIFFReadDirEntryCheckRangeSbyteLong(*ma); |
1677 | 0 | if (err != TIFFReadDirEntryErrOk) |
1678 | 0 | break; |
1679 | 0 | *mb++ = (int8_t)(*ma++); |
1680 | 0 | } |
1681 | 0 | } |
1682 | 0 | break; |
1683 | 0 | case TIFF_SLONG: |
1684 | 0 | { |
1685 | 0 | int32_t *ma; |
1686 | 0 | int8_t *mb; |
1687 | 0 | uint32_t n; |
1688 | 0 | ma = (int32_t *)origdata; |
1689 | 0 | mb = data; |
1690 | 0 | for (n = 0; n < count; n++) |
1691 | 0 | { |
1692 | 0 | if (tif->tif_flags & TIFF_SWAB) |
1693 | 0 | TIFFSwabLong((uint32_t *)ma); |
1694 | 0 | err = TIFFReadDirEntryCheckRangeSbyteSlong(*ma); |
1695 | 0 | if (err != TIFFReadDirEntryErrOk) |
1696 | 0 | break; |
1697 | 0 | *mb++ = (int8_t)(*ma++); |
1698 | 0 | } |
1699 | 0 | } |
1700 | 0 | break; |
1701 | 0 | case TIFF_LONG8: |
1702 | 0 | { |
1703 | 0 | uint64_t *ma; |
1704 | 0 | int8_t *mb; |
1705 | 0 | uint32_t n; |
1706 | 0 | ma = (uint64_t *)origdata; |
1707 | 0 | mb = data; |
1708 | 0 | for (n = 0; n < count; n++) |
1709 | 0 | { |
1710 | 0 | if (tif->tif_flags & TIFF_SWAB) |
1711 | 0 | TIFFSwabLong8(ma); |
1712 | 0 | err = TIFFReadDirEntryCheckRangeSbyteLong8(*ma); |
1713 | 0 | if (err != TIFFReadDirEntryErrOk) |
1714 | 0 | break; |
1715 | 0 | *mb++ = (int8_t)(*ma++); |
1716 | 0 | } |
1717 | 0 | } |
1718 | 0 | break; |
1719 | 0 | case TIFF_SLONG8: |
1720 | 0 | { |
1721 | 0 | int64_t *ma; |
1722 | 0 | int8_t *mb; |
1723 | 0 | uint32_t n; |
1724 | 0 | ma = (int64_t *)origdata; |
1725 | 0 | mb = data; |
1726 | 0 | for (n = 0; n < count; n++) |
1727 | 0 | { |
1728 | 0 | if (tif->tif_flags & TIFF_SWAB) |
1729 | 0 | TIFFSwabLong8((uint64_t *)ma); |
1730 | 0 | err = TIFFReadDirEntryCheckRangeSbyteSlong8(*ma); |
1731 | 0 | if (err != TIFFReadDirEntryErrOk) |
1732 | 0 | break; |
1733 | 0 | *mb++ = (int8_t)(*ma++); |
1734 | 0 | } |
1735 | 0 | } |
1736 | 0 | break; |
1737 | 0 | } |
1738 | 0 | _TIFFfreeExt(tif, origdata); |
1739 | 0 | if (err != TIFFReadDirEntryErrOk) |
1740 | 0 | { |
1741 | 0 | _TIFFfreeExt(tif, data); |
1742 | 0 | return (err); |
1743 | 0 | } |
1744 | 0 | *value = data; |
1745 | 0 | return (TIFFReadDirEntryErrOk); |
1746 | 0 | } |
1747 | | |
1748 | | static enum TIFFReadDirEntryErr |
1749 | | TIFFReadDirEntryShortArray(TIFF *tif, TIFFDirEntry *direntry, uint16_t **value) |
1750 | 860 | { |
1751 | 860 | enum TIFFReadDirEntryErr err; |
1752 | 860 | uint32_t count; |
1753 | 860 | void *origdata; |
1754 | 860 | uint16_t *data; |
1755 | 860 | switch (direntry->tdir_type) |
1756 | 860 | { |
1757 | 19 | case TIFF_BYTE: |
1758 | 22 | case TIFF_SBYTE: |
1759 | 798 | case TIFF_SHORT: |
1760 | 809 | case TIFF_SSHORT: |
1761 | 815 | case TIFF_LONG: |
1762 | 833 | case TIFF_SLONG: |
1763 | 843 | case TIFF_LONG8: |
1764 | 858 | case TIFF_SLONG8: |
1765 | 858 | break; |
1766 | 2 | default: |
1767 | 2 | return (TIFFReadDirEntryErrType); |
1768 | 860 | } |
1769 | 858 | err = TIFFReadDirEntryArray(tif, direntry, &count, 2, &origdata); |
1770 | 858 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
1771 | 267 | { |
1772 | 267 | *value = 0; |
1773 | 267 | return (err); |
1774 | 267 | } |
1775 | 591 | switch (direntry->tdir_type) |
1776 | 591 | { |
1777 | 517 | case TIFF_SHORT: |
1778 | 517 | *value = (uint16_t *)origdata; |
1779 | 517 | if (tif->tif_flags & TIFF_SWAB) |
1780 | 38 | TIFFSwabArrayOfShort(*value, count); |
1781 | 517 | return (TIFFReadDirEntryErrOk); |
1782 | 11 | case TIFF_SSHORT: |
1783 | 11 | { |
1784 | 11 | int16_t *m; |
1785 | 11 | uint32_t n; |
1786 | 11 | m = (int16_t *)origdata; |
1787 | 59 | for (n = 0; n < count; n++) |
1788 | 51 | { |
1789 | 51 | if (tif->tif_flags & TIFF_SWAB) |
1790 | 0 | TIFFSwabShort((uint16_t *)m); |
1791 | 51 | err = TIFFReadDirEntryCheckRangeShortSshort(*m); |
1792 | 51 | if (err != TIFFReadDirEntryErrOk) |
1793 | 3 | { |
1794 | 3 | _TIFFfreeExt(tif, origdata); |
1795 | 3 | return (err); |
1796 | 3 | } |
1797 | 48 | m++; |
1798 | 48 | } |
1799 | 8 | *value = (uint16_t *)origdata; |
1800 | 8 | return (TIFFReadDirEntryErrOk); |
1801 | 11 | } |
1802 | 591 | } |
1803 | 63 | data = (uint16_t *)_TIFFmallocExt(tif, count * 2); |
1804 | 63 | if (data == 0) |
1805 | 0 | { |
1806 | 0 | _TIFFfreeExt(tif, origdata); |
1807 | 0 | return (TIFFReadDirEntryErrAlloc); |
1808 | 0 | } |
1809 | 63 | switch (direntry->tdir_type) |
1810 | 63 | { |
1811 | 15 | case TIFF_BYTE: |
1812 | 15 | { |
1813 | 15 | uint8_t *ma; |
1814 | 15 | uint16_t *mb; |
1815 | 15 | uint32_t n; |
1816 | 15 | ma = (uint8_t *)origdata; |
1817 | 15 | mb = data; |
1818 | 299 | for (n = 0; n < count; n++) |
1819 | 284 | *mb++ = (uint16_t)(*ma++); |
1820 | 15 | } |
1821 | 15 | break; |
1822 | 3 | case TIFF_SBYTE: |
1823 | 3 | { |
1824 | 3 | int8_t *ma; |
1825 | 3 | uint16_t *mb; |
1826 | 3 | uint32_t n; |
1827 | 3 | ma = (int8_t *)origdata; |
1828 | 3 | mb = data; |
1829 | 174 | for (n = 0; n < count; n++) |
1830 | 172 | { |
1831 | 172 | err = TIFFReadDirEntryCheckRangeShortSbyte(*ma); |
1832 | 172 | if (err != TIFFReadDirEntryErrOk) |
1833 | 1 | break; |
1834 | 171 | *mb++ = (uint16_t)(*ma++); |
1835 | 171 | } |
1836 | 3 | } |
1837 | 3 | break; |
1838 | 6 | case TIFF_LONG: |
1839 | 6 | { |
1840 | 6 | uint32_t *ma; |
1841 | 6 | uint16_t *mb; |
1842 | 6 | uint32_t n; |
1843 | 6 | ma = (uint32_t *)origdata; |
1844 | 6 | mb = data; |
1845 | 206 | for (n = 0; n < count; n++) |
1846 | 205 | { |
1847 | 205 | if (tif->tif_flags & TIFF_SWAB) |
1848 | 200 | TIFFSwabLong(ma); |
1849 | 205 | err = TIFFReadDirEntryCheckRangeShortLong(*ma); |
1850 | 205 | if (err != TIFFReadDirEntryErrOk) |
1851 | 5 | break; |
1852 | 200 | *mb++ = (uint16_t)(*ma++); |
1853 | 200 | } |
1854 | 6 | } |
1855 | 6 | break; |
1856 | 15 | case TIFF_SLONG: |
1857 | 15 | { |
1858 | 15 | int32_t *ma; |
1859 | 15 | uint16_t *mb; |
1860 | 15 | uint32_t n; |
1861 | 15 | ma = (int32_t *)origdata; |
1862 | 15 | mb = data; |
1863 | 28 | for (n = 0; n < count; n++) |
1864 | 28 | { |
1865 | 28 | if (tif->tif_flags & TIFF_SWAB) |
1866 | 17 | TIFFSwabLong((uint32_t *)ma); |
1867 | 28 | err = TIFFReadDirEntryCheckRangeShortSlong(*ma); |
1868 | 28 | if (err != TIFFReadDirEntryErrOk) |
1869 | 15 | break; |
1870 | 13 | *mb++ = (uint16_t)(*ma++); |
1871 | 13 | } |
1872 | 15 | } |
1873 | 15 | break; |
1874 | 9 | case TIFF_LONG8: |
1875 | 9 | { |
1876 | 9 | uint64_t *ma; |
1877 | 9 | uint16_t *mb; |
1878 | 9 | uint32_t n; |
1879 | 9 | ma = (uint64_t *)origdata; |
1880 | 9 | mb = data; |
1881 | 21 | for (n = 0; n < count; n++) |
1882 | 20 | { |
1883 | 20 | if (tif->tif_flags & TIFF_SWAB) |
1884 | 1 | TIFFSwabLong8(ma); |
1885 | 20 | err = TIFFReadDirEntryCheckRangeShortLong8(*ma); |
1886 | 20 | if (err != TIFFReadDirEntryErrOk) |
1887 | 8 | break; |
1888 | 12 | *mb++ = (uint16_t)(*ma++); |
1889 | 12 | } |
1890 | 9 | } |
1891 | 9 | break; |
1892 | 15 | case TIFF_SLONG8: |
1893 | 15 | { |
1894 | 15 | int64_t *ma; |
1895 | 15 | uint16_t *mb; |
1896 | 15 | uint32_t n; |
1897 | 15 | ma = (int64_t *)origdata; |
1898 | 15 | mb = data; |
1899 | 53 | for (n = 0; n < count; n++) |
1900 | 45 | { |
1901 | 45 | if (tif->tif_flags & TIFF_SWAB) |
1902 | 27 | TIFFSwabLong8((uint64_t *)ma); |
1903 | 45 | err = TIFFReadDirEntryCheckRangeShortSlong8(*ma); |
1904 | 45 | if (err != TIFFReadDirEntryErrOk) |
1905 | 7 | break; |
1906 | 38 | *mb++ = (uint16_t)(*ma++); |
1907 | 38 | } |
1908 | 15 | } |
1909 | 15 | break; |
1910 | 63 | } |
1911 | 63 | _TIFFfreeExt(tif, origdata); |
1912 | 63 | if (err != TIFFReadDirEntryErrOk) |
1913 | 36 | { |
1914 | 36 | _TIFFfreeExt(tif, data); |
1915 | 36 | return (err); |
1916 | 36 | } |
1917 | 27 | *value = data; |
1918 | 27 | return (TIFFReadDirEntryErrOk); |
1919 | 63 | } |
1920 | | |
1921 | | static enum TIFFReadDirEntryErr |
1922 | | TIFFReadDirEntrySshortArray(TIFF *tif, TIFFDirEntry *direntry, int16_t **value) |
1923 | 123 | { |
1924 | 123 | enum TIFFReadDirEntryErr err; |
1925 | 123 | uint32_t count; |
1926 | 123 | void *origdata; |
1927 | 123 | int16_t *data; |
1928 | 123 | switch (direntry->tdir_type) |
1929 | 123 | { |
1930 | 0 | case TIFF_BYTE: |
1931 | 0 | case TIFF_SBYTE: |
1932 | 0 | case TIFF_SHORT: |
1933 | 123 | case TIFF_SSHORT: |
1934 | 123 | case TIFF_LONG: |
1935 | 123 | case TIFF_SLONG: |
1936 | 123 | case TIFF_LONG8: |
1937 | 123 | case TIFF_SLONG8: |
1938 | 123 | break; |
1939 | 0 | default: |
1940 | 0 | return (TIFFReadDirEntryErrType); |
1941 | 123 | } |
1942 | 123 | err = TIFFReadDirEntryArray(tif, direntry, &count, 2, &origdata); |
1943 | 123 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
1944 | 89 | { |
1945 | 89 | *value = 0; |
1946 | 89 | return (err); |
1947 | 89 | } |
1948 | 34 | switch (direntry->tdir_type) |
1949 | 34 | { |
1950 | 0 | case TIFF_SHORT: |
1951 | 0 | { |
1952 | 0 | uint16_t *m; |
1953 | 0 | uint32_t n; |
1954 | 0 | m = (uint16_t *)origdata; |
1955 | 0 | for (n = 0; n < count; n++) |
1956 | 0 | { |
1957 | 0 | if (tif->tif_flags & TIFF_SWAB) |
1958 | 0 | TIFFSwabShort(m); |
1959 | 0 | err = TIFFReadDirEntryCheckRangeSshortShort(*m); |
1960 | 0 | if (err != TIFFReadDirEntryErrOk) |
1961 | 0 | { |
1962 | 0 | _TIFFfreeExt(tif, origdata); |
1963 | 0 | return (err); |
1964 | 0 | } |
1965 | 0 | m++; |
1966 | 0 | } |
1967 | 0 | *value = (int16_t *)origdata; |
1968 | 0 | return (TIFFReadDirEntryErrOk); |
1969 | 0 | } |
1970 | 34 | case TIFF_SSHORT: |
1971 | 34 | *value = (int16_t *)origdata; |
1972 | 34 | if (tif->tif_flags & TIFF_SWAB) |
1973 | 4 | TIFFSwabArrayOfShort((uint16_t *)(*value), count); |
1974 | 34 | return (TIFFReadDirEntryErrOk); |
1975 | 34 | } |
1976 | 0 | data = (int16_t *)_TIFFmallocExt(tif, count * 2); |
1977 | 0 | if (data == 0) |
1978 | 0 | { |
1979 | 0 | _TIFFfreeExt(tif, origdata); |
1980 | 0 | return (TIFFReadDirEntryErrAlloc); |
1981 | 0 | } |
1982 | 0 | switch (direntry->tdir_type) |
1983 | 0 | { |
1984 | 0 | case TIFF_BYTE: |
1985 | 0 | { |
1986 | 0 | uint8_t *ma; |
1987 | 0 | int16_t *mb; |
1988 | 0 | uint32_t n; |
1989 | 0 | ma = (uint8_t *)origdata; |
1990 | 0 | mb = data; |
1991 | 0 | for (n = 0; n < count; n++) |
1992 | 0 | *mb++ = (int16_t)(*ma++); |
1993 | 0 | } |
1994 | 0 | break; |
1995 | 0 | case TIFF_SBYTE: |
1996 | 0 | { |
1997 | 0 | int8_t *ma; |
1998 | 0 | int16_t *mb; |
1999 | 0 | uint32_t n; |
2000 | 0 | ma = (int8_t *)origdata; |
2001 | 0 | mb = data; |
2002 | 0 | for (n = 0; n < count; n++) |
2003 | 0 | *mb++ = (int16_t)(*ma++); |
2004 | 0 | } |
2005 | 0 | break; |
2006 | 0 | case TIFF_LONG: |
2007 | 0 | { |
2008 | 0 | uint32_t *ma; |
2009 | 0 | int16_t *mb; |
2010 | 0 | uint32_t n; |
2011 | 0 | ma = (uint32_t *)origdata; |
2012 | 0 | mb = data; |
2013 | 0 | for (n = 0; n < count; n++) |
2014 | 0 | { |
2015 | 0 | if (tif->tif_flags & TIFF_SWAB) |
2016 | 0 | TIFFSwabLong(ma); |
2017 | 0 | err = TIFFReadDirEntryCheckRangeSshortLong(*ma); |
2018 | 0 | if (err != TIFFReadDirEntryErrOk) |
2019 | 0 | break; |
2020 | 0 | *mb++ = (int16_t)(*ma++); |
2021 | 0 | } |
2022 | 0 | } |
2023 | 0 | break; |
2024 | 0 | case TIFF_SLONG: |
2025 | 0 | { |
2026 | 0 | int32_t *ma; |
2027 | 0 | int16_t *mb; |
2028 | 0 | uint32_t n; |
2029 | 0 | ma = (int32_t *)origdata; |
2030 | 0 | mb = data; |
2031 | 0 | for (n = 0; n < count; n++) |
2032 | 0 | { |
2033 | 0 | if (tif->tif_flags & TIFF_SWAB) |
2034 | 0 | TIFFSwabLong((uint32_t *)ma); |
2035 | 0 | err = TIFFReadDirEntryCheckRangeSshortSlong(*ma); |
2036 | 0 | if (err != TIFFReadDirEntryErrOk) |
2037 | 0 | break; |
2038 | 0 | *mb++ = (int16_t)(*ma++); |
2039 | 0 | } |
2040 | 0 | } |
2041 | 0 | break; |
2042 | 0 | case TIFF_LONG8: |
2043 | 0 | { |
2044 | 0 | uint64_t *ma; |
2045 | 0 | int16_t *mb; |
2046 | 0 | uint32_t n; |
2047 | 0 | ma = (uint64_t *)origdata; |
2048 | 0 | mb = data; |
2049 | 0 | for (n = 0; n < count; n++) |
2050 | 0 | { |
2051 | 0 | if (tif->tif_flags & TIFF_SWAB) |
2052 | 0 | TIFFSwabLong8(ma); |
2053 | 0 | err = TIFFReadDirEntryCheckRangeSshortLong8(*ma); |
2054 | 0 | if (err != TIFFReadDirEntryErrOk) |
2055 | 0 | break; |
2056 | 0 | *mb++ = (int16_t)(*ma++); |
2057 | 0 | } |
2058 | 0 | } |
2059 | 0 | break; |
2060 | 0 | case TIFF_SLONG8: |
2061 | 0 | { |
2062 | 0 | int64_t *ma; |
2063 | 0 | int16_t *mb; |
2064 | 0 | uint32_t n; |
2065 | 0 | ma = (int64_t *)origdata; |
2066 | 0 | mb = data; |
2067 | 0 | for (n = 0; n < count; n++) |
2068 | 0 | { |
2069 | 0 | if (tif->tif_flags & TIFF_SWAB) |
2070 | 0 | TIFFSwabLong8((uint64_t *)ma); |
2071 | 0 | err = TIFFReadDirEntryCheckRangeSshortSlong8(*ma); |
2072 | 0 | if (err != TIFFReadDirEntryErrOk) |
2073 | 0 | break; |
2074 | 0 | *mb++ = (int16_t)(*ma++); |
2075 | 0 | } |
2076 | 0 | } |
2077 | 0 | break; |
2078 | 0 | } |
2079 | 0 | _TIFFfreeExt(tif, origdata); |
2080 | 0 | if (err != TIFFReadDirEntryErrOk) |
2081 | 0 | { |
2082 | 0 | _TIFFfreeExt(tif, data); |
2083 | 0 | return (err); |
2084 | 0 | } |
2085 | 0 | *value = data; |
2086 | 0 | return (TIFFReadDirEntryErrOk); |
2087 | 0 | } |
2088 | | |
2089 | | static enum TIFFReadDirEntryErr |
2090 | | TIFFReadDirEntryLongArray(TIFF *tif, TIFFDirEntry *direntry, uint32_t **value) |
2091 | 356 | { |
2092 | 356 | enum TIFFReadDirEntryErr err; |
2093 | 356 | uint32_t count; |
2094 | 356 | void *origdata; |
2095 | 356 | uint32_t *data; |
2096 | 356 | switch (direntry->tdir_type) |
2097 | 356 | { |
2098 | 2 | case TIFF_BYTE: |
2099 | 9 | case TIFF_SBYTE: |
2100 | 11 | case TIFF_SHORT: |
2101 | 20 | case TIFF_SSHORT: |
2102 | 294 | case TIFF_LONG: |
2103 | 305 | case TIFF_SLONG: |
2104 | 325 | case TIFF_LONG8: |
2105 | 355 | case TIFF_SLONG8: |
2106 | 355 | break; |
2107 | 1 | default: |
2108 | 1 | return (TIFFReadDirEntryErrType); |
2109 | 356 | } |
2110 | 355 | err = TIFFReadDirEntryArray(tif, direntry, &count, 4, &origdata); |
2111 | 355 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
2112 | 251 | { |
2113 | 251 | *value = 0; |
2114 | 251 | return (err); |
2115 | 251 | } |
2116 | 104 | switch (direntry->tdir_type) |
2117 | 104 | { |
2118 | 44 | case TIFF_LONG: |
2119 | 44 | *value = (uint32_t *)origdata; |
2120 | 44 | if (tif->tif_flags & TIFF_SWAB) |
2121 | 22 | TIFFSwabArrayOfLong(*value, count); |
2122 | 44 | return (TIFFReadDirEntryErrOk); |
2123 | 6 | case TIFF_SLONG: |
2124 | 6 | { |
2125 | 6 | int32_t *m; |
2126 | 6 | uint32_t n; |
2127 | 6 | m = (int32_t *)origdata; |
2128 | 54 | for (n = 0; n < count; n++) |
2129 | 54 | { |
2130 | 54 | if (tif->tif_flags & TIFF_SWAB) |
2131 | 33 | TIFFSwabLong((uint32_t *)m); |
2132 | 54 | err = TIFFReadDirEntryCheckRangeLongSlong(*m); |
2133 | 54 | if (err != TIFFReadDirEntryErrOk) |
2134 | 6 | { |
2135 | 6 | _TIFFfreeExt(tif, origdata); |
2136 | 6 | return (err); |
2137 | 6 | } |
2138 | 48 | m++; |
2139 | 48 | } |
2140 | 0 | *value = (uint32_t *)origdata; |
2141 | 0 | return (TIFFReadDirEntryErrOk); |
2142 | 6 | } |
2143 | 104 | } |
2144 | 54 | data = (uint32_t *)_TIFFmallocExt(tif, count * 4); |
2145 | 54 | if (data == 0) |
2146 | 0 | { |
2147 | 0 | _TIFFfreeExt(tif, origdata); |
2148 | 0 | return (TIFFReadDirEntryErrAlloc); |
2149 | 0 | } |
2150 | 54 | switch (direntry->tdir_type) |
2151 | 54 | { |
2152 | 2 | case TIFF_BYTE: |
2153 | 2 | { |
2154 | 2 | uint8_t *ma; |
2155 | 2 | uint32_t *mb; |
2156 | 2 | uint32_t n; |
2157 | 2 | ma = (uint8_t *)origdata; |
2158 | 2 | mb = data; |
2159 | 21 | for (n = 0; n < count; n++) |
2160 | 19 | *mb++ = (uint32_t)(*ma++); |
2161 | 2 | } |
2162 | 2 | break; |
2163 | 6 | case TIFF_SBYTE: |
2164 | 6 | { |
2165 | 6 | int8_t *ma; |
2166 | 6 | uint32_t *mb; |
2167 | 6 | uint32_t n; |
2168 | 6 | ma = (int8_t *)origdata; |
2169 | 6 | mb = data; |
2170 | 61 | for (n = 0; n < count; n++) |
2171 | 60 | { |
2172 | 60 | err = TIFFReadDirEntryCheckRangeLongSbyte(*ma); |
2173 | 60 | if (err != TIFFReadDirEntryErrOk) |
2174 | 5 | break; |
2175 | 55 | *mb++ = (uint32_t)(*ma++); |
2176 | 55 | } |
2177 | 6 | } |
2178 | 6 | break; |
2179 | 2 | case TIFF_SHORT: |
2180 | 2 | { |
2181 | 2 | uint16_t *ma; |
2182 | 2 | uint32_t *mb; |
2183 | 2 | uint32_t n; |
2184 | 2 | ma = (uint16_t *)origdata; |
2185 | 2 | mb = data; |
2186 | 21 | for (n = 0; n < count; n++) |
2187 | 19 | { |
2188 | 19 | if (tif->tif_flags & TIFF_SWAB) |
2189 | 19 | TIFFSwabShort(ma); |
2190 | 19 | *mb++ = (uint32_t)(*ma++); |
2191 | 19 | } |
2192 | 2 | } |
2193 | 2 | break; |
2194 | 9 | case TIFF_SSHORT: |
2195 | 9 | { |
2196 | 9 | int16_t *ma; |
2197 | 9 | uint32_t *mb; |
2198 | 9 | uint32_t n; |
2199 | 9 | ma = (int16_t *)origdata; |
2200 | 9 | mb = data; |
2201 | 142 | for (n = 0; n < count; n++) |
2202 | 136 | { |
2203 | 136 | if (tif->tif_flags & TIFF_SWAB) |
2204 | 0 | TIFFSwabShort((uint16_t *)ma); |
2205 | 136 | err = TIFFReadDirEntryCheckRangeLongSshort(*ma); |
2206 | 136 | if (err != TIFFReadDirEntryErrOk) |
2207 | 3 | break; |
2208 | 133 | *mb++ = (uint32_t)(*ma++); |
2209 | 133 | } |
2210 | 9 | } |
2211 | 9 | break; |
2212 | 18 | case TIFF_LONG8: |
2213 | 18 | { |
2214 | 18 | uint64_t *ma; |
2215 | 18 | uint32_t *mb; |
2216 | 18 | uint32_t n; |
2217 | 18 | ma = (uint64_t *)origdata; |
2218 | 18 | mb = data; |
2219 | 64 | for (n = 0; n < count; n++) |
2220 | 62 | { |
2221 | 62 | if (tif->tif_flags & TIFF_SWAB) |
2222 | 14 | TIFFSwabLong8(ma); |
2223 | 62 | err = TIFFReadDirEntryCheckRangeLongLong8(*ma); |
2224 | 62 | if (err != TIFFReadDirEntryErrOk) |
2225 | 16 | break; |
2226 | 46 | *mb++ = (uint32_t)(*ma++); |
2227 | 46 | } |
2228 | 18 | } |
2229 | 18 | break; |
2230 | 17 | case TIFF_SLONG8: |
2231 | 17 | { |
2232 | 17 | int64_t *ma; |
2233 | 17 | uint32_t *mb; |
2234 | 17 | uint32_t n; |
2235 | 17 | ma = (int64_t *)origdata; |
2236 | 17 | mb = data; |
2237 | 712 | for (n = 0; n < count; n++) |
2238 | 704 | { |
2239 | 704 | if (tif->tif_flags & TIFF_SWAB) |
2240 | 5 | TIFFSwabLong8((uint64_t *)ma); |
2241 | 704 | err = TIFFReadDirEntryCheckRangeLongSlong8(*ma); |
2242 | 704 | if (err != TIFFReadDirEntryErrOk) |
2243 | 9 | break; |
2244 | 695 | *mb++ = (uint32_t)(*ma++); |
2245 | 695 | } |
2246 | 17 | } |
2247 | 17 | break; |
2248 | 54 | } |
2249 | 54 | _TIFFfreeExt(tif, origdata); |
2250 | 54 | if (err != TIFFReadDirEntryErrOk) |
2251 | 33 | { |
2252 | 33 | _TIFFfreeExt(tif, data); |
2253 | 33 | return (err); |
2254 | 33 | } |
2255 | 21 | *value = data; |
2256 | 21 | return (TIFFReadDirEntryErrOk); |
2257 | 54 | } |
2258 | | |
2259 | | static enum TIFFReadDirEntryErr |
2260 | | TIFFReadDirEntrySlongArray(TIFF *tif, TIFFDirEntry *direntry, int32_t **value) |
2261 | 50 | { |
2262 | 50 | enum TIFFReadDirEntryErr err; |
2263 | 50 | uint32_t count; |
2264 | 50 | void *origdata; |
2265 | 50 | int32_t *data; |
2266 | 50 | switch (direntry->tdir_type) |
2267 | 50 | { |
2268 | 0 | case TIFF_BYTE: |
2269 | 0 | case TIFF_SBYTE: |
2270 | 0 | case TIFF_SHORT: |
2271 | 0 | case TIFF_SSHORT: |
2272 | 0 | case TIFF_LONG: |
2273 | 50 | case TIFF_SLONG: |
2274 | 50 | case TIFF_LONG8: |
2275 | 50 | case TIFF_SLONG8: |
2276 | 50 | break; |
2277 | 0 | default: |
2278 | 0 | return (TIFFReadDirEntryErrType); |
2279 | 50 | } |
2280 | 50 | err = TIFFReadDirEntryArray(tif, direntry, &count, 4, &origdata); |
2281 | 50 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
2282 | 37 | { |
2283 | 37 | *value = 0; |
2284 | 37 | return (err); |
2285 | 37 | } |
2286 | 13 | switch (direntry->tdir_type) |
2287 | 13 | { |
2288 | 0 | case TIFF_LONG: |
2289 | 0 | { |
2290 | 0 | uint32_t *m; |
2291 | 0 | uint32_t n; |
2292 | 0 | m = (uint32_t *)origdata; |
2293 | 0 | for (n = 0; n < count; n++) |
2294 | 0 | { |
2295 | 0 | if (tif->tif_flags & TIFF_SWAB) |
2296 | 0 | TIFFSwabLong((uint32_t *)m); |
2297 | 0 | err = TIFFReadDirEntryCheckRangeSlongLong(*m); |
2298 | 0 | if (err != TIFFReadDirEntryErrOk) |
2299 | 0 | { |
2300 | 0 | _TIFFfreeExt(tif, origdata); |
2301 | 0 | return (err); |
2302 | 0 | } |
2303 | 0 | m++; |
2304 | 0 | } |
2305 | 0 | *value = (int32_t *)origdata; |
2306 | 0 | return (TIFFReadDirEntryErrOk); |
2307 | 0 | } |
2308 | 13 | case TIFF_SLONG: |
2309 | 13 | *value = (int32_t *)origdata; |
2310 | 13 | if (tif->tif_flags & TIFF_SWAB) |
2311 | 6 | TIFFSwabArrayOfLong((uint32_t *)(*value), count); |
2312 | 13 | return (TIFFReadDirEntryErrOk); |
2313 | 13 | } |
2314 | 0 | data = (int32_t *)_TIFFmallocExt(tif, count * 4); |
2315 | 0 | if (data == 0) |
2316 | 0 | { |
2317 | 0 | _TIFFfreeExt(tif, origdata); |
2318 | 0 | return (TIFFReadDirEntryErrAlloc); |
2319 | 0 | } |
2320 | 0 | switch (direntry->tdir_type) |
2321 | 0 | { |
2322 | 0 | case TIFF_BYTE: |
2323 | 0 | { |
2324 | 0 | uint8_t *ma; |
2325 | 0 | int32_t *mb; |
2326 | 0 | uint32_t n; |
2327 | 0 | ma = (uint8_t *)origdata; |
2328 | 0 | mb = data; |
2329 | 0 | for (n = 0; n < count; n++) |
2330 | 0 | *mb++ = (int32_t)(*ma++); |
2331 | 0 | } |
2332 | 0 | break; |
2333 | 0 | case TIFF_SBYTE: |
2334 | 0 | { |
2335 | 0 | int8_t *ma; |
2336 | 0 | int32_t *mb; |
2337 | 0 | uint32_t n; |
2338 | 0 | ma = (int8_t *)origdata; |
2339 | 0 | mb = data; |
2340 | 0 | for (n = 0; n < count; n++) |
2341 | 0 | *mb++ = (int32_t)(*ma++); |
2342 | 0 | } |
2343 | 0 | break; |
2344 | 0 | case TIFF_SHORT: |
2345 | 0 | { |
2346 | 0 | uint16_t *ma; |
2347 | 0 | int32_t *mb; |
2348 | 0 | uint32_t n; |
2349 | 0 | ma = (uint16_t *)origdata; |
2350 | 0 | mb = data; |
2351 | 0 | for (n = 0; n < count; n++) |
2352 | 0 | { |
2353 | 0 | if (tif->tif_flags & TIFF_SWAB) |
2354 | 0 | TIFFSwabShort(ma); |
2355 | 0 | *mb++ = (int32_t)(*ma++); |
2356 | 0 | } |
2357 | 0 | } |
2358 | 0 | break; |
2359 | 0 | case TIFF_SSHORT: |
2360 | 0 | { |
2361 | 0 | int16_t *ma; |
2362 | 0 | int32_t *mb; |
2363 | 0 | uint32_t n; |
2364 | 0 | ma = (int16_t *)origdata; |
2365 | 0 | mb = data; |
2366 | 0 | for (n = 0; n < count; n++) |
2367 | 0 | { |
2368 | 0 | if (tif->tif_flags & TIFF_SWAB) |
2369 | 0 | TIFFSwabShort((uint16_t *)ma); |
2370 | 0 | *mb++ = (int32_t)(*ma++); |
2371 | 0 | } |
2372 | 0 | } |
2373 | 0 | break; |
2374 | 0 | case TIFF_LONG8: |
2375 | 0 | { |
2376 | 0 | uint64_t *ma; |
2377 | 0 | int32_t *mb; |
2378 | 0 | uint32_t n; |
2379 | 0 | ma = (uint64_t *)origdata; |
2380 | 0 | mb = data; |
2381 | 0 | for (n = 0; n < count; n++) |
2382 | 0 | { |
2383 | 0 | if (tif->tif_flags & TIFF_SWAB) |
2384 | 0 | TIFFSwabLong8(ma); |
2385 | 0 | err = TIFFReadDirEntryCheckRangeSlongLong8(*ma); |
2386 | 0 | if (err != TIFFReadDirEntryErrOk) |
2387 | 0 | break; |
2388 | 0 | *mb++ = (int32_t)(*ma++); |
2389 | 0 | } |
2390 | 0 | } |
2391 | 0 | break; |
2392 | 0 | case TIFF_SLONG8: |
2393 | 0 | { |
2394 | 0 | int64_t *ma; |
2395 | 0 | int32_t *mb; |
2396 | 0 | uint32_t n; |
2397 | 0 | ma = (int64_t *)origdata; |
2398 | 0 | mb = data; |
2399 | 0 | for (n = 0; n < count; n++) |
2400 | 0 | { |
2401 | 0 | if (tif->tif_flags & TIFF_SWAB) |
2402 | 0 | TIFFSwabLong8((uint64_t *)ma); |
2403 | 0 | err = TIFFReadDirEntryCheckRangeSlongSlong8(*ma); |
2404 | 0 | if (err != TIFFReadDirEntryErrOk) |
2405 | 0 | break; |
2406 | 0 | *mb++ = (int32_t)(*ma++); |
2407 | 0 | } |
2408 | 0 | } |
2409 | 0 | break; |
2410 | 0 | } |
2411 | 0 | _TIFFfreeExt(tif, origdata); |
2412 | 0 | if (err != TIFFReadDirEntryErrOk) |
2413 | 0 | { |
2414 | 0 | _TIFFfreeExt(tif, data); |
2415 | 0 | return (err); |
2416 | 0 | } |
2417 | 0 | *value = data; |
2418 | 0 | return (TIFFReadDirEntryErrOk); |
2419 | 0 | } |
2420 | | |
2421 | | static enum TIFFReadDirEntryErr |
2422 | | TIFFReadDirEntryLong8ArrayWithLimit(TIFF *tif, TIFFDirEntry *direntry, |
2423 | | uint64_t **value, uint64_t maxcount) |
2424 | 805 | { |
2425 | 805 | enum TIFFReadDirEntryErr err; |
2426 | 805 | uint32_t count; |
2427 | 805 | void *origdata; |
2428 | 805 | uint64_t *data; |
2429 | 805 | switch (direntry->tdir_type) |
2430 | 805 | { |
2431 | 81 | case TIFF_BYTE: |
2432 | 104 | case TIFF_SBYTE: |
2433 | 170 | case TIFF_SHORT: |
2434 | 185 | case TIFF_SSHORT: |
2435 | 590 | case TIFF_LONG: |
2436 | 595 | case TIFF_SLONG: |
2437 | 747 | case TIFF_LONG8: |
2438 | 760 | case TIFF_SLONG8: |
2439 | 760 | break; |
2440 | 45 | default: |
2441 | 45 | return (TIFFReadDirEntryErrType); |
2442 | 805 | } |
2443 | 760 | err = TIFFReadDirEntryArrayWithLimit(tif, direntry, &count, 8, &origdata, |
2444 | 760 | maxcount); |
2445 | 760 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
2446 | 148 | { |
2447 | 148 | *value = 0; |
2448 | 148 | return (err); |
2449 | 148 | } |
2450 | 612 | switch (direntry->tdir_type) |
2451 | 612 | { |
2452 | 92 | case TIFF_LONG8: |
2453 | 92 | *value = (uint64_t *)origdata; |
2454 | 92 | if (tif->tif_flags & TIFF_SWAB) |
2455 | 6 | TIFFSwabArrayOfLong8(*value, count); |
2456 | 92 | return (TIFFReadDirEntryErrOk); |
2457 | 13 | case TIFF_SLONG8: |
2458 | 13 | { |
2459 | 13 | int64_t *m; |
2460 | 13 | uint32_t n; |
2461 | 13 | m = (int64_t *)origdata; |
2462 | 62 | for (n = 0; n < count; n++) |
2463 | 54 | { |
2464 | 54 | if (tif->tif_flags & TIFF_SWAB) |
2465 | 20 | TIFFSwabLong8((uint64_t *)m); |
2466 | 54 | err = TIFFReadDirEntryCheckRangeLong8Slong8(*m); |
2467 | 54 | if (err != TIFFReadDirEntryErrOk) |
2468 | 5 | { |
2469 | 5 | _TIFFfreeExt(tif, origdata); |
2470 | 5 | return (err); |
2471 | 5 | } |
2472 | 49 | m++; |
2473 | 49 | } |
2474 | 8 | *value = (uint64_t *)origdata; |
2475 | 8 | return (TIFFReadDirEntryErrOk); |
2476 | 13 | } |
2477 | 612 | } |
2478 | 507 | data = (uint64_t *)_TIFFmallocExt(tif, count * 8); |
2479 | 507 | if (data == 0) |
2480 | 0 | { |
2481 | 0 | _TIFFfreeExt(tif, origdata); |
2482 | 0 | return (TIFFReadDirEntryErrAlloc); |
2483 | 0 | } |
2484 | 507 | switch (direntry->tdir_type) |
2485 | 507 | { |
2486 | 65 | case TIFF_BYTE: |
2487 | 65 | { |
2488 | 65 | uint8_t *ma; |
2489 | 65 | uint64_t *mb; |
2490 | 65 | uint32_t n; |
2491 | 65 | ma = (uint8_t *)origdata; |
2492 | 65 | mb = data; |
2493 | 885 | for (n = 0; n < count; n++) |
2494 | 820 | *mb++ = (uint64_t)(*ma++); |
2495 | 65 | } |
2496 | 65 | break; |
2497 | 15 | case TIFF_SBYTE: |
2498 | 15 | { |
2499 | 15 | int8_t *ma; |
2500 | 15 | uint64_t *mb; |
2501 | 15 | uint32_t n; |
2502 | 15 | ma = (int8_t *)origdata; |
2503 | 15 | mb = data; |
2504 | 53 | for (n = 0; n < count; n++) |
2505 | 38 | { |
2506 | 38 | err = TIFFReadDirEntryCheckRangeLong8Sbyte(*ma); |
2507 | 38 | if (err != TIFFReadDirEntryErrOk) |
2508 | 0 | break; |
2509 | 38 | *mb++ = (uint64_t)(*ma++); |
2510 | 38 | } |
2511 | 15 | } |
2512 | 15 | break; |
2513 | 57 | case TIFF_SHORT: |
2514 | 57 | { |
2515 | 57 | uint16_t *ma; |
2516 | 57 | uint64_t *mb; |
2517 | 57 | uint32_t n; |
2518 | 57 | ma = (uint16_t *)origdata; |
2519 | 57 | mb = data; |
2520 | 861 | for (n = 0; n < count; n++) |
2521 | 804 | { |
2522 | 804 | if (tif->tif_flags & TIFF_SWAB) |
2523 | 504 | TIFFSwabShort(ma); |
2524 | 804 | *mb++ = (uint64_t)(*ma++); |
2525 | 804 | } |
2526 | 57 | } |
2527 | 57 | break; |
2528 | 11 | case TIFF_SSHORT: |
2529 | 11 | { |
2530 | 11 | int16_t *ma; |
2531 | 11 | uint64_t *mb; |
2532 | 11 | uint32_t n; |
2533 | 11 | ma = (int16_t *)origdata; |
2534 | 11 | mb = data; |
2535 | 101 | for (n = 0; n < count; n++) |
2536 | 93 | { |
2537 | 93 | if (tif->tif_flags & TIFF_SWAB) |
2538 | 19 | TIFFSwabShort((uint16_t *)ma); |
2539 | 93 | err = TIFFReadDirEntryCheckRangeLong8Sshort(*ma); |
2540 | 93 | if (err != TIFFReadDirEntryErrOk) |
2541 | 3 | break; |
2542 | 90 | *mb++ = (uint64_t)(*ma++); |
2543 | 90 | } |
2544 | 11 | } |
2545 | 11 | break; |
2546 | 355 | case TIFF_LONG: |
2547 | 355 | { |
2548 | 355 | uint32_t *ma; |
2549 | 355 | uint64_t *mb; |
2550 | 355 | uint32_t n; |
2551 | 355 | ma = (uint32_t *)origdata; |
2552 | 355 | mb = data; |
2553 | 3.11k | for (n = 0; n < count; n++) |
2554 | 2.75k | { |
2555 | 2.75k | if (tif->tif_flags & TIFF_SWAB) |
2556 | 296 | TIFFSwabLong(ma); |
2557 | 2.75k | *mb++ = (uint64_t)(*ma++); |
2558 | 2.75k | } |
2559 | 355 | } |
2560 | 355 | break; |
2561 | 4 | case TIFF_SLONG: |
2562 | 4 | { |
2563 | 4 | int32_t *ma; |
2564 | 4 | uint64_t *mb; |
2565 | 4 | uint32_t n; |
2566 | 4 | ma = (int32_t *)origdata; |
2567 | 4 | mb = data; |
2568 | 15 | for (n = 0; n < count; n++) |
2569 | 12 | { |
2570 | 12 | if (tif->tif_flags & TIFF_SWAB) |
2571 | 7 | TIFFSwabLong((uint32_t *)ma); |
2572 | 12 | err = TIFFReadDirEntryCheckRangeLong8Slong(*ma); |
2573 | 12 | if (err != TIFFReadDirEntryErrOk) |
2574 | 1 | break; |
2575 | 11 | *mb++ = (uint64_t)(*ma++); |
2576 | 11 | } |
2577 | 4 | } |
2578 | 4 | break; |
2579 | 507 | } |
2580 | 507 | _TIFFfreeExt(tif, origdata); |
2581 | 507 | if (err != TIFFReadDirEntryErrOk) |
2582 | 4 | { |
2583 | 4 | _TIFFfreeExt(tif, data); |
2584 | 4 | return (err); |
2585 | 4 | } |
2586 | 503 | *value = data; |
2587 | 503 | return (TIFFReadDirEntryErrOk); |
2588 | 507 | } |
2589 | | |
2590 | | static enum TIFFReadDirEntryErr |
2591 | | TIFFReadDirEntryLong8Array(TIFF *tif, TIFFDirEntry *direntry, uint64_t **value) |
2592 | 70 | { |
2593 | 70 | return TIFFReadDirEntryLong8ArrayWithLimit(tif, direntry, value, |
2594 | 70 | ~((uint64_t)0)); |
2595 | 70 | } |
2596 | | |
2597 | | static enum TIFFReadDirEntryErr |
2598 | | TIFFReadDirEntrySlong8Array(TIFF *tif, TIFFDirEntry *direntry, int64_t **value) |
2599 | 77 | { |
2600 | 77 | enum TIFFReadDirEntryErr err; |
2601 | 77 | uint32_t count; |
2602 | 77 | void *origdata; |
2603 | 77 | int64_t *data; |
2604 | 77 | switch (direntry->tdir_type) |
2605 | 77 | { |
2606 | 0 | case TIFF_BYTE: |
2607 | 0 | case TIFF_SBYTE: |
2608 | 0 | case TIFF_SHORT: |
2609 | 0 | case TIFF_SSHORT: |
2610 | 0 | case TIFF_LONG: |
2611 | 0 | case TIFF_SLONG: |
2612 | 0 | case TIFF_LONG8: |
2613 | 77 | case TIFF_SLONG8: |
2614 | 77 | break; |
2615 | 0 | default: |
2616 | 0 | return (TIFFReadDirEntryErrType); |
2617 | 77 | } |
2618 | 77 | err = TIFFReadDirEntryArray(tif, direntry, &count, 8, &origdata); |
2619 | 77 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
2620 | 38 | { |
2621 | 38 | *value = 0; |
2622 | 38 | return (err); |
2623 | 38 | } |
2624 | 39 | switch (direntry->tdir_type) |
2625 | 39 | { |
2626 | 0 | case TIFF_LONG8: |
2627 | 0 | { |
2628 | 0 | uint64_t *m; |
2629 | 0 | uint32_t n; |
2630 | 0 | m = (uint64_t *)origdata; |
2631 | 0 | for (n = 0; n < count; n++) |
2632 | 0 | { |
2633 | 0 | if (tif->tif_flags & TIFF_SWAB) |
2634 | 0 | TIFFSwabLong8(m); |
2635 | 0 | err = TIFFReadDirEntryCheckRangeSlong8Long8(*m); |
2636 | 0 | if (err != TIFFReadDirEntryErrOk) |
2637 | 0 | { |
2638 | 0 | _TIFFfreeExt(tif, origdata); |
2639 | 0 | return (err); |
2640 | 0 | } |
2641 | 0 | m++; |
2642 | 0 | } |
2643 | 0 | *value = (int64_t *)origdata; |
2644 | 0 | return (TIFFReadDirEntryErrOk); |
2645 | 0 | } |
2646 | 39 | case TIFF_SLONG8: |
2647 | 39 | *value = (int64_t *)origdata; |
2648 | 39 | if (tif->tif_flags & TIFF_SWAB) |
2649 | 12 | TIFFSwabArrayOfLong8((uint64_t *)(*value), count); |
2650 | 39 | return (TIFFReadDirEntryErrOk); |
2651 | 39 | } |
2652 | 0 | data = (int64_t *)_TIFFmallocExt(tif, count * 8); |
2653 | 0 | if (data == 0) |
2654 | 0 | { |
2655 | 0 | _TIFFfreeExt(tif, origdata); |
2656 | 0 | return (TIFFReadDirEntryErrAlloc); |
2657 | 0 | } |
2658 | 0 | switch (direntry->tdir_type) |
2659 | 0 | { |
2660 | 0 | case TIFF_BYTE: |
2661 | 0 | { |
2662 | 0 | uint8_t *ma; |
2663 | 0 | int64_t *mb; |
2664 | 0 | uint32_t n; |
2665 | 0 | ma = (uint8_t *)origdata; |
2666 | 0 | mb = data; |
2667 | 0 | for (n = 0; n < count; n++) |
2668 | 0 | *mb++ = (int64_t)(*ma++); |
2669 | 0 | } |
2670 | 0 | break; |
2671 | 0 | case TIFF_SBYTE: |
2672 | 0 | { |
2673 | 0 | int8_t *ma; |
2674 | 0 | int64_t *mb; |
2675 | 0 | uint32_t n; |
2676 | 0 | ma = (int8_t *)origdata; |
2677 | 0 | mb = data; |
2678 | 0 | for (n = 0; n < count; n++) |
2679 | 0 | *mb++ = (int64_t)(*ma++); |
2680 | 0 | } |
2681 | 0 | break; |
2682 | 0 | case TIFF_SHORT: |
2683 | 0 | { |
2684 | 0 | uint16_t *ma; |
2685 | 0 | int64_t *mb; |
2686 | 0 | uint32_t n; |
2687 | 0 | ma = (uint16_t *)origdata; |
2688 | 0 | mb = data; |
2689 | 0 | for (n = 0; n < count; n++) |
2690 | 0 | { |
2691 | 0 | if (tif->tif_flags & TIFF_SWAB) |
2692 | 0 | TIFFSwabShort(ma); |
2693 | 0 | *mb++ = (int64_t)(*ma++); |
2694 | 0 | } |
2695 | 0 | } |
2696 | 0 | break; |
2697 | 0 | case TIFF_SSHORT: |
2698 | 0 | { |
2699 | 0 | int16_t *ma; |
2700 | 0 | int64_t *mb; |
2701 | 0 | uint32_t n; |
2702 | 0 | ma = (int16_t *)origdata; |
2703 | 0 | mb = data; |
2704 | 0 | for (n = 0; n < count; n++) |
2705 | 0 | { |
2706 | 0 | if (tif->tif_flags & TIFF_SWAB) |
2707 | 0 | TIFFSwabShort((uint16_t *)ma); |
2708 | 0 | *mb++ = (int64_t)(*ma++); |
2709 | 0 | } |
2710 | 0 | } |
2711 | 0 | break; |
2712 | 0 | case TIFF_LONG: |
2713 | 0 | { |
2714 | 0 | uint32_t *ma; |
2715 | 0 | int64_t *mb; |
2716 | 0 | uint32_t n; |
2717 | 0 | ma = (uint32_t *)origdata; |
2718 | 0 | mb = data; |
2719 | 0 | for (n = 0; n < count; n++) |
2720 | 0 | { |
2721 | 0 | if (tif->tif_flags & TIFF_SWAB) |
2722 | 0 | TIFFSwabLong(ma); |
2723 | 0 | *mb++ = (int64_t)(*ma++); |
2724 | 0 | } |
2725 | 0 | } |
2726 | 0 | break; |
2727 | 0 | case TIFF_SLONG: |
2728 | 0 | { |
2729 | 0 | int32_t *ma; |
2730 | 0 | int64_t *mb; |
2731 | 0 | uint32_t n; |
2732 | 0 | ma = (int32_t *)origdata; |
2733 | 0 | mb = data; |
2734 | 0 | for (n = 0; n < count; n++) |
2735 | 0 | { |
2736 | 0 | if (tif->tif_flags & TIFF_SWAB) |
2737 | 0 | TIFFSwabLong((uint32_t *)ma); |
2738 | 0 | *mb++ = (int64_t)(*ma++); |
2739 | 0 | } |
2740 | 0 | } |
2741 | 0 | break; |
2742 | 0 | } |
2743 | 0 | _TIFFfreeExt(tif, origdata); |
2744 | 0 | *value = data; |
2745 | 0 | return (TIFFReadDirEntryErrOk); |
2746 | 0 | } |
2747 | | |
2748 | | static enum TIFFReadDirEntryErr |
2749 | | TIFFReadDirEntryFloatArray(TIFF *tif, TIFFDirEntry *direntry, float **value) |
2750 | 342 | { |
2751 | 342 | enum TIFFReadDirEntryErr err; |
2752 | 342 | uint32_t count; |
2753 | 342 | void *origdata; |
2754 | 342 | float *data; |
2755 | 342 | switch (direntry->tdir_type) |
2756 | 342 | { |
2757 | 4 | case TIFF_BYTE: |
2758 | 8 | case TIFF_SBYTE: |
2759 | 14 | case TIFF_SHORT: |
2760 | 17 | case TIFF_SSHORT: |
2761 | 26 | case TIFF_LONG: |
2762 | 27 | case TIFF_SLONG: |
2763 | 30 | case TIFF_LONG8: |
2764 | 36 | case TIFF_SLONG8: |
2765 | 156 | case TIFF_RATIONAL: |
2766 | 232 | case TIFF_SRATIONAL: |
2767 | 328 | case TIFF_FLOAT: |
2768 | 335 | case TIFF_DOUBLE: |
2769 | 335 | break; |
2770 | 7 | default: |
2771 | 7 | return (TIFFReadDirEntryErrType); |
2772 | 342 | } |
2773 | 335 | err = TIFFReadDirEntryArray(tif, direntry, &count, 4, &origdata); |
2774 | 335 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
2775 | 222 | { |
2776 | 222 | *value = 0; |
2777 | 222 | return (err); |
2778 | 222 | } |
2779 | 113 | switch (direntry->tdir_type) |
2780 | 113 | { |
2781 | 15 | case TIFF_FLOAT: |
2782 | 15 | if (tif->tif_flags & TIFF_SWAB) |
2783 | 5 | TIFFSwabArrayOfLong((uint32_t *)origdata, count); |
2784 | 15 | TIFFCvtIEEEDoubleToNative(tif, count, (float *)origdata); |
2785 | 15 | *value = (float *)origdata; |
2786 | 15 | return (TIFFReadDirEntryErrOk); |
2787 | 113 | } |
2788 | 98 | data = (float *)_TIFFmallocExt(tif, count * sizeof(float)); |
2789 | 98 | if (data == 0) |
2790 | 0 | { |
2791 | 0 | _TIFFfreeExt(tif, origdata); |
2792 | 0 | return (TIFFReadDirEntryErrAlloc); |
2793 | 0 | } |
2794 | 98 | switch (direntry->tdir_type) |
2795 | 98 | { |
2796 | 2 | case TIFF_BYTE: |
2797 | 2 | { |
2798 | 2 | uint8_t *ma; |
2799 | 2 | float *mb; |
2800 | 2 | uint32_t n; |
2801 | 2 | ma = (uint8_t *)origdata; |
2802 | 2 | mb = data; |
2803 | 22 | for (n = 0; n < count; n++) |
2804 | 20 | *mb++ = (float)(*ma++); |
2805 | 2 | } |
2806 | 2 | break; |
2807 | 4 | case TIFF_SBYTE: |
2808 | 4 | { |
2809 | 4 | int8_t *ma; |
2810 | 4 | float *mb; |
2811 | 4 | uint32_t n; |
2812 | 4 | ma = (int8_t *)origdata; |
2813 | 4 | mb = data; |
2814 | 28 | for (n = 0; n < count; n++) |
2815 | 24 | *mb++ = (float)(*ma++); |
2816 | 4 | } |
2817 | 4 | break; |
2818 | 4 | case TIFF_SHORT: |
2819 | 4 | { |
2820 | 4 | uint16_t *ma; |
2821 | 4 | float *mb; |
2822 | 4 | uint32_t n; |
2823 | 4 | ma = (uint16_t *)origdata; |
2824 | 4 | mb = data; |
2825 | 23 | for (n = 0; n < count; n++) |
2826 | 19 | { |
2827 | 19 | if (tif->tif_flags & TIFF_SWAB) |
2828 | 0 | TIFFSwabShort(ma); |
2829 | 19 | *mb++ = (float)(*ma++); |
2830 | 19 | } |
2831 | 4 | } |
2832 | 4 | break; |
2833 | 3 | case TIFF_SSHORT: |
2834 | 3 | { |
2835 | 3 | int16_t *ma; |
2836 | 3 | float *mb; |
2837 | 3 | uint32_t n; |
2838 | 3 | ma = (int16_t *)origdata; |
2839 | 3 | mb = data; |
2840 | 25 | for (n = 0; n < count; n++) |
2841 | 22 | { |
2842 | 22 | if (tif->tif_flags & TIFF_SWAB) |
2843 | 4 | TIFFSwabShort((uint16_t *)ma); |
2844 | 22 | *mb++ = (float)(*ma++); |
2845 | 22 | } |
2846 | 3 | } |
2847 | 3 | break; |
2848 | 9 | case TIFF_LONG: |
2849 | 9 | { |
2850 | 9 | uint32_t *ma; |
2851 | 9 | float *mb; |
2852 | 9 | uint32_t n; |
2853 | 9 | ma = (uint32_t *)origdata; |
2854 | 9 | mb = data; |
2855 | 83 | for (n = 0; n < count; n++) |
2856 | 74 | { |
2857 | 74 | if (tif->tif_flags & TIFF_SWAB) |
2858 | 14 | TIFFSwabLong(ma); |
2859 | 74 | *mb++ = (float)(*ma++); |
2860 | 74 | } |
2861 | 9 | } |
2862 | 9 | break; |
2863 | 1 | case TIFF_SLONG: |
2864 | 1 | { |
2865 | 1 | int32_t *ma; |
2866 | 1 | float *mb; |
2867 | 1 | uint32_t n; |
2868 | 1 | ma = (int32_t *)origdata; |
2869 | 1 | mb = data; |
2870 | 24 | for (n = 0; n < count; n++) |
2871 | 23 | { |
2872 | 23 | if (tif->tif_flags & TIFF_SWAB) |
2873 | 0 | TIFFSwabLong((uint32_t *)ma); |
2874 | 23 | *mb++ = (float)(*ma++); |
2875 | 23 | } |
2876 | 1 | } |
2877 | 1 | break; |
2878 | 3 | case TIFF_LONG8: |
2879 | 3 | { |
2880 | 3 | uint64_t *ma; |
2881 | 3 | float *mb; |
2882 | 3 | uint32_t n; |
2883 | 3 | ma = (uint64_t *)origdata; |
2884 | 3 | mb = data; |
2885 | 11 | for (n = 0; n < count; n++) |
2886 | 8 | { |
2887 | 8 | if (tif->tif_flags & TIFF_SWAB) |
2888 | 7 | TIFFSwabLong8(ma); |
2889 | 8 | *mb++ = (float)(*ma++); |
2890 | 8 | } |
2891 | 3 | } |
2892 | 3 | break; |
2893 | 6 | case TIFF_SLONG8: |
2894 | 6 | { |
2895 | 6 | int64_t *ma; |
2896 | 6 | float *mb; |
2897 | 6 | uint32_t n; |
2898 | 6 | ma = (int64_t *)origdata; |
2899 | 6 | mb = data; |
2900 | 51 | for (n = 0; n < count; n++) |
2901 | 45 | { |
2902 | 45 | if (tif->tif_flags & TIFF_SWAB) |
2903 | 7 | TIFFSwabLong8((uint64_t *)ma); |
2904 | 45 | *mb++ = (float)(*ma++); |
2905 | 45 | } |
2906 | 6 | } |
2907 | 6 | break; |
2908 | 45 | case TIFF_RATIONAL: |
2909 | 45 | { |
2910 | 45 | uint32_t *ma; |
2911 | 45 | uint32_t maa; |
2912 | 45 | uint32_t mab; |
2913 | 45 | float *mb; |
2914 | 45 | uint32_t n; |
2915 | 45 | ma = (uint32_t *)origdata; |
2916 | 45 | mb = data; |
2917 | 271 | for (n = 0; n < count; n++) |
2918 | 226 | { |
2919 | 226 | if (tif->tif_flags & TIFF_SWAB) |
2920 | 71 | TIFFSwabLong(ma); |
2921 | 226 | maa = *ma++; |
2922 | 226 | if (tif->tif_flags & TIFF_SWAB) |
2923 | 71 | TIFFSwabLong(ma); |
2924 | 226 | mab = *ma++; |
2925 | 226 | if (mab == 0) |
2926 | 24 | *mb++ = 0.0; |
2927 | 202 | else |
2928 | 202 | *mb++ = (float)maa / (float)mab; |
2929 | 226 | } |
2930 | 45 | } |
2931 | 45 | break; |
2932 | 15 | case TIFF_SRATIONAL: |
2933 | 15 | { |
2934 | 15 | uint32_t *ma; |
2935 | 15 | int32_t maa; |
2936 | 15 | uint32_t mab; |
2937 | 15 | float *mb; |
2938 | 15 | uint32_t n; |
2939 | 15 | ma = (uint32_t *)origdata; |
2940 | 15 | mb = data; |
2941 | 96 | for (n = 0; n < count; n++) |
2942 | 81 | { |
2943 | 81 | if (tif->tif_flags & TIFF_SWAB) |
2944 | 2 | TIFFSwabLong(ma); |
2945 | 81 | maa = *(int32_t *)ma; |
2946 | 81 | ma++; |
2947 | 81 | if (tif->tif_flags & TIFF_SWAB) |
2948 | 2 | TIFFSwabLong(ma); |
2949 | 81 | mab = *ma++; |
2950 | 81 | if (mab == 0) |
2951 | 14 | *mb++ = 0.0; |
2952 | 67 | else |
2953 | 67 | *mb++ = (float)maa / (float)mab; |
2954 | 81 | } |
2955 | 15 | } |
2956 | 15 | break; |
2957 | 6 | case TIFF_DOUBLE: |
2958 | 6 | { |
2959 | 6 | double *ma; |
2960 | 6 | float *mb; |
2961 | 6 | uint32_t n; |
2962 | 6 | if (tif->tif_flags & TIFF_SWAB) |
2963 | 5 | TIFFSwabArrayOfLong8((uint64_t *)origdata, count); |
2964 | 6 | TIFFCvtIEEEDoubleToNative(tif, count, (double *)origdata); |
2965 | 6 | ma = (double *)origdata; |
2966 | 6 | mb = data; |
2967 | 53 | for (n = 0; n < count; n++) |
2968 | 47 | { |
2969 | 47 | double val = *ma++; |
2970 | 47 | if (val > FLT_MAX) |
2971 | 9 | val = FLT_MAX; |
2972 | 38 | else if (val < -FLT_MAX) |
2973 | 1 | val = -FLT_MAX; |
2974 | 47 | *mb++ = (float)val; |
2975 | 47 | } |
2976 | 6 | } |
2977 | 6 | break; |
2978 | 98 | } |
2979 | 98 | _TIFFfreeExt(tif, origdata); |
2980 | 98 | *value = data; |
2981 | 98 | return (TIFFReadDirEntryErrOk); |
2982 | 98 | } |
2983 | | |
2984 | | static enum TIFFReadDirEntryErr |
2985 | | TIFFReadDirEntryDoubleArray(TIFF *tif, TIFFDirEntry *direntry, double **value) |
2986 | 217 | { |
2987 | 217 | enum TIFFReadDirEntryErr err; |
2988 | 217 | uint32_t count; |
2989 | 217 | void *origdata; |
2990 | 217 | double *data; |
2991 | 217 | switch (direntry->tdir_type) |
2992 | 217 | { |
2993 | 0 | case TIFF_BYTE: |
2994 | 1 | case TIFF_SBYTE: |
2995 | 6 | case TIFF_SHORT: |
2996 | 10 | case TIFF_SSHORT: |
2997 | 13 | case TIFF_LONG: |
2998 | 17 | case TIFF_SLONG: |
2999 | 18 | case TIFF_LONG8: |
3000 | 23 | case TIFF_SLONG8: |
3001 | 25 | case TIFF_RATIONAL: |
3002 | 28 | case TIFF_SRATIONAL: |
3003 | 28 | case TIFF_FLOAT: |
3004 | 217 | case TIFF_DOUBLE: |
3005 | 217 | break; |
3006 | 0 | default: |
3007 | 0 | return (TIFFReadDirEntryErrType); |
3008 | 217 | } |
3009 | 217 | err = TIFFReadDirEntryArray(tif, direntry, &count, 8, &origdata); |
3010 | 217 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
3011 | 127 | { |
3012 | 127 | *value = 0; |
3013 | 127 | return (err); |
3014 | 127 | } |
3015 | 90 | switch (direntry->tdir_type) |
3016 | 90 | { |
3017 | 63 | case TIFF_DOUBLE: |
3018 | 63 | if (tif->tif_flags & TIFF_SWAB) |
3019 | 4 | TIFFSwabArrayOfLong8((uint64_t *)origdata, count); |
3020 | 63 | TIFFCvtIEEEDoubleToNative(tif, count, (double *)origdata); |
3021 | 63 | *value = (double *)origdata; |
3022 | 63 | return (TIFFReadDirEntryErrOk); |
3023 | 90 | } |
3024 | 27 | data = (double *)_TIFFmallocExt(tif, count * sizeof(double)); |
3025 | 27 | if (data == 0) |
3026 | 0 | { |
3027 | 0 | _TIFFfreeExt(tif, origdata); |
3028 | 0 | return (TIFFReadDirEntryErrAlloc); |
3029 | 0 | } |
3030 | 27 | switch (direntry->tdir_type) |
3031 | 27 | { |
3032 | 0 | case TIFF_BYTE: |
3033 | 0 | { |
3034 | 0 | uint8_t *ma; |
3035 | 0 | double *mb; |
3036 | 0 | uint32_t n; |
3037 | 0 | ma = (uint8_t *)origdata; |
3038 | 0 | mb = data; |
3039 | 0 | for (n = 0; n < count; n++) |
3040 | 0 | *mb++ = (double)(*ma++); |
3041 | 0 | } |
3042 | 0 | break; |
3043 | 1 | case TIFF_SBYTE: |
3044 | 1 | { |
3045 | 1 | int8_t *ma; |
3046 | 1 | double *mb; |
3047 | 1 | uint32_t n; |
3048 | 1 | ma = (int8_t *)origdata; |
3049 | 1 | mb = data; |
3050 | 4 | for (n = 0; n < count; n++) |
3051 | 3 | *mb++ = (double)(*ma++); |
3052 | 1 | } |
3053 | 1 | break; |
3054 | 5 | case TIFF_SHORT: |
3055 | 5 | { |
3056 | 5 | uint16_t *ma; |
3057 | 5 | double *mb; |
3058 | 5 | uint32_t n; |
3059 | 5 | ma = (uint16_t *)origdata; |
3060 | 5 | mb = data; |
3061 | 31 | for (n = 0; n < count; n++) |
3062 | 26 | { |
3063 | 26 | if (tif->tif_flags & TIFF_SWAB) |
3064 | 20 | TIFFSwabShort(ma); |
3065 | 26 | *mb++ = (double)(*ma++); |
3066 | 26 | } |
3067 | 5 | } |
3068 | 5 | break; |
3069 | 4 | case TIFF_SSHORT: |
3070 | 4 | { |
3071 | 4 | int16_t *ma; |
3072 | 4 | double *mb; |
3073 | 4 | uint32_t n; |
3074 | 4 | ma = (int16_t *)origdata; |
3075 | 4 | mb = data; |
3076 | 9 | for (n = 0; n < count; n++) |
3077 | 5 | { |
3078 | 5 | if (tif->tif_flags & TIFF_SWAB) |
3079 | 3 | TIFFSwabShort((uint16_t *)ma); |
3080 | 5 | *mb++ = (double)(*ma++); |
3081 | 5 | } |
3082 | 4 | } |
3083 | 4 | break; |
3084 | 3 | case TIFF_LONG: |
3085 | 3 | { |
3086 | 3 | uint32_t *ma; |
3087 | 3 | double *mb; |
3088 | 3 | uint32_t n; |
3089 | 3 | ma = (uint32_t *)origdata; |
3090 | 3 | mb = data; |
3091 | 22 | for (n = 0; n < count; n++) |
3092 | 19 | { |
3093 | 19 | if (tif->tif_flags & TIFF_SWAB) |
3094 | 18 | TIFFSwabLong(ma); |
3095 | 19 | *mb++ = (double)(*ma++); |
3096 | 19 | } |
3097 | 3 | } |
3098 | 3 | break; |
3099 | 4 | case TIFF_SLONG: |
3100 | 4 | { |
3101 | 4 | int32_t *ma; |
3102 | 4 | double *mb; |
3103 | 4 | uint32_t n; |
3104 | 4 | ma = (int32_t *)origdata; |
3105 | 4 | mb = data; |
3106 | 287 | for (n = 0; n < count; n++) |
3107 | 283 | { |
3108 | 283 | if (tif->tif_flags & TIFF_SWAB) |
3109 | 280 | TIFFSwabLong((uint32_t *)ma); |
3110 | 283 | *mb++ = (double)(*ma++); |
3111 | 283 | } |
3112 | 4 | } |
3113 | 4 | break; |
3114 | 1 | case TIFF_LONG8: |
3115 | 1 | { |
3116 | 1 | uint64_t *ma; |
3117 | 1 | double *mb; |
3118 | 1 | uint32_t n; |
3119 | 1 | ma = (uint64_t *)origdata; |
3120 | 1 | mb = data; |
3121 | 4 | for (n = 0; n < count; n++) |
3122 | 3 | { |
3123 | 3 | if (tif->tif_flags & TIFF_SWAB) |
3124 | 0 | TIFFSwabLong8(ma); |
3125 | 3 | *mb++ = (double)(*ma++); |
3126 | 3 | } |
3127 | 1 | } |
3128 | 1 | break; |
3129 | 5 | case TIFF_SLONG8: |
3130 | 5 | { |
3131 | 5 | int64_t *ma; |
3132 | 5 | double *mb; |
3133 | 5 | uint32_t n; |
3134 | 5 | ma = (int64_t *)origdata; |
3135 | 5 | mb = data; |
3136 | 330 | for (n = 0; n < count; n++) |
3137 | 325 | { |
3138 | 325 | if (tif->tif_flags & TIFF_SWAB) |
3139 | 256 | TIFFSwabLong8((uint64_t *)ma); |
3140 | 325 | *mb++ = (double)(*ma++); |
3141 | 325 | } |
3142 | 5 | } |
3143 | 5 | break; |
3144 | 2 | case TIFF_RATIONAL: |
3145 | 2 | { |
3146 | 2 | uint32_t *ma; |
3147 | 2 | uint32_t maa; |
3148 | 2 | uint32_t mab; |
3149 | 2 | double *mb; |
3150 | 2 | uint32_t n; |
3151 | 2 | ma = (uint32_t *)origdata; |
3152 | 2 | mb = data; |
3153 | 19 | for (n = 0; n < count; n++) |
3154 | 17 | { |
3155 | 17 | if (tif->tif_flags & TIFF_SWAB) |
3156 | 16 | TIFFSwabLong(ma); |
3157 | 17 | maa = *ma++; |
3158 | 17 | if (tif->tif_flags & TIFF_SWAB) |
3159 | 16 | TIFFSwabLong(ma); |
3160 | 17 | mab = *ma++; |
3161 | 17 | if (mab == 0) |
3162 | 8 | *mb++ = 0.0; |
3163 | 9 | else |
3164 | 9 | *mb++ = (double)maa / (double)mab; |
3165 | 17 | } |
3166 | 2 | } |
3167 | 2 | break; |
3168 | 2 | case TIFF_SRATIONAL: |
3169 | 2 | { |
3170 | 2 | uint32_t *ma; |
3171 | 2 | int32_t maa; |
3172 | 2 | uint32_t mab; |
3173 | 2 | double *mb; |
3174 | 2 | uint32_t n; |
3175 | 2 | ma = (uint32_t *)origdata; |
3176 | 2 | mb = data; |
3177 | 322 | for (n = 0; n < count; n++) |
3178 | 320 | { |
3179 | 320 | if (tif->tif_flags & TIFF_SWAB) |
3180 | 256 | TIFFSwabLong(ma); |
3181 | 320 | maa = *(int32_t *)ma; |
3182 | 320 | ma++; |
3183 | 320 | if (tif->tif_flags & TIFF_SWAB) |
3184 | 256 | TIFFSwabLong(ma); |
3185 | 320 | mab = *ma++; |
3186 | 320 | if (mab == 0) |
3187 | 146 | *mb++ = 0.0; |
3188 | 174 | else |
3189 | 174 | *mb++ = (double)maa / (double)mab; |
3190 | 320 | } |
3191 | 2 | } |
3192 | 2 | break; |
3193 | 0 | case TIFF_FLOAT: |
3194 | 0 | { |
3195 | 0 | float *ma; |
3196 | 0 | double *mb; |
3197 | 0 | uint32_t n; |
3198 | 0 | if (tif->tif_flags & TIFF_SWAB) |
3199 | 0 | TIFFSwabArrayOfLong((uint32_t *)origdata, count); |
3200 | 0 | TIFFCvtIEEEFloatToNative(tif, count, (float *)origdata); |
3201 | 0 | ma = (float *)origdata; |
3202 | 0 | mb = data; |
3203 | 0 | for (n = 0; n < count; n++) |
3204 | 0 | *mb++ = (double)(*ma++); |
3205 | 0 | } |
3206 | 0 | break; |
3207 | 27 | } |
3208 | 27 | _TIFFfreeExt(tif, origdata); |
3209 | 27 | *value = data; |
3210 | 27 | return (TIFFReadDirEntryErrOk); |
3211 | 27 | } |
3212 | | |
3213 | | static enum TIFFReadDirEntryErr |
3214 | | TIFFReadDirEntryIfd8Array(TIFF *tif, TIFFDirEntry *direntry, uint64_t **value) |
3215 | 66 | { |
3216 | 66 | enum TIFFReadDirEntryErr err; |
3217 | 66 | uint32_t count; |
3218 | 66 | void *origdata; |
3219 | 66 | uint64_t *data; |
3220 | 66 | switch (direntry->tdir_type) |
3221 | 66 | { |
3222 | 17 | case TIFF_LONG: |
3223 | 18 | case TIFF_LONG8: |
3224 | 49 | case TIFF_IFD: |
3225 | 66 | case TIFF_IFD8: |
3226 | 66 | break; |
3227 | 0 | default: |
3228 | 0 | return (TIFFReadDirEntryErrType); |
3229 | 66 | } |
3230 | 66 | err = TIFFReadDirEntryArray(tif, direntry, &count, 8, &origdata); |
3231 | 66 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
3232 | 45 | { |
3233 | 45 | *value = 0; |
3234 | 45 | return (err); |
3235 | 45 | } |
3236 | 21 | switch (direntry->tdir_type) |
3237 | 21 | { |
3238 | 0 | case TIFF_LONG8: |
3239 | 1 | case TIFF_IFD8: |
3240 | 1 | *value = (uint64_t *)origdata; |
3241 | 1 | if (tif->tif_flags & TIFF_SWAB) |
3242 | 1 | TIFFSwabArrayOfLong8(*value, count); |
3243 | 1 | return (TIFFReadDirEntryErrOk); |
3244 | 21 | } |
3245 | 20 | data = (uint64_t *)_TIFFmallocExt(tif, count * 8); |
3246 | 20 | if (data == 0) |
3247 | 0 | { |
3248 | 0 | _TIFFfreeExt(tif, origdata); |
3249 | 0 | return (TIFFReadDirEntryErrAlloc); |
3250 | 0 | } |
3251 | 20 | switch (direntry->tdir_type) |
3252 | 20 | { |
3253 | 12 | case TIFF_LONG: |
3254 | 20 | case TIFF_IFD: |
3255 | 20 | { |
3256 | 20 | uint32_t *ma; |
3257 | 20 | uint64_t *mb; |
3258 | 20 | uint32_t n; |
3259 | 20 | ma = (uint32_t *)origdata; |
3260 | 20 | mb = data; |
3261 | 973 | for (n = 0; n < count; n++) |
3262 | 953 | { |
3263 | 953 | if (tif->tif_flags & TIFF_SWAB) |
3264 | 82 | TIFFSwabLong(ma); |
3265 | 953 | *mb++ = (uint64_t)(*ma++); |
3266 | 953 | } |
3267 | 20 | } |
3268 | 20 | break; |
3269 | 20 | } |
3270 | 20 | _TIFFfreeExt(tif, origdata); |
3271 | 20 | *value = data; |
3272 | 20 | return (TIFFReadDirEntryErrOk); |
3273 | 20 | } |
3274 | | |
3275 | | static enum TIFFReadDirEntryErr |
3276 | | TIFFReadDirEntryPersampleShort(TIFF *tif, TIFFDirEntry *direntry, |
3277 | | uint16_t *value) |
3278 | 181 | { |
3279 | 181 | enum TIFFReadDirEntryErr err; |
3280 | 181 | uint16_t *m; |
3281 | 181 | uint16_t *na; |
3282 | 181 | uint16_t nb; |
3283 | 181 | if (direntry->tdir_count < (uint64_t)tif->tif_dir.td_samplesperpixel) |
3284 | 3 | return (TIFFReadDirEntryErrCount); |
3285 | 178 | err = TIFFReadDirEntryShortArray(tif, direntry, &m); |
3286 | 178 | if (err != TIFFReadDirEntryErrOk || m == NULL) |
3287 | 29 | return (err); |
3288 | 149 | na = m; |
3289 | 149 | nb = tif->tif_dir.td_samplesperpixel; |
3290 | 149 | *value = *na++; |
3291 | 149 | nb--; |
3292 | 370 | while (nb > 0) |
3293 | 223 | { |
3294 | 223 | if (*na++ != *value) |
3295 | 2 | { |
3296 | 2 | err = TIFFReadDirEntryErrPsdif; |
3297 | 2 | break; |
3298 | 2 | } |
3299 | 221 | nb--; |
3300 | 221 | } |
3301 | 149 | _TIFFfreeExt(tif, m); |
3302 | 149 | return (err); |
3303 | 178 | } |
3304 | | |
3305 | | static void TIFFReadDirEntryCheckedByte(TIFF *tif, TIFFDirEntry *direntry, |
3306 | | uint8_t *value) |
3307 | 117 | { |
3308 | 117 | (void)tif; |
3309 | 117 | *value = *(uint8_t *)(&direntry->tdir_offset); |
3310 | 117 | } |
3311 | | |
3312 | | static void TIFFReadDirEntryCheckedSbyte(TIFF *tif, TIFFDirEntry *direntry, |
3313 | | int8_t *value) |
3314 | 53 | { |
3315 | 53 | (void)tif; |
3316 | 53 | *value = *(int8_t *)(&direntry->tdir_offset); |
3317 | 53 | } |
3318 | | |
3319 | | static void TIFFReadDirEntryCheckedShort(TIFF *tif, TIFFDirEntry *direntry, |
3320 | | uint16_t *value) |
3321 | 2.54k | { |
3322 | 2.54k | *value = direntry->tdir_offset.toff_short; |
3323 | | /* *value=*(uint16_t*)(&direntry->tdir_offset); */ |
3324 | 2.54k | if (tif->tif_flags & TIFF_SWAB) |
3325 | 206 | TIFFSwabShort(value); |
3326 | 2.54k | } |
3327 | | |
3328 | | static void TIFFReadDirEntryCheckedSshort(TIFF *tif, TIFFDirEntry *direntry, |
3329 | | int16_t *value) |
3330 | 82 | { |
3331 | 82 | *value = *(int16_t *)(&direntry->tdir_offset); |
3332 | 82 | if (tif->tif_flags & TIFF_SWAB) |
3333 | 15 | TIFFSwabShort((uint16_t *)value); |
3334 | 82 | } |
3335 | | |
3336 | | static void TIFFReadDirEntryCheckedLong(TIFF *tif, TIFFDirEntry *direntry, |
3337 | | uint32_t *value) |
3338 | 340 | { |
3339 | 340 | *value = *(uint32_t *)(&direntry->tdir_offset); |
3340 | 340 | if (tif->tif_flags & TIFF_SWAB) |
3341 | 75 | TIFFSwabLong(value); |
3342 | 340 | } |
3343 | | |
3344 | | static void TIFFReadDirEntryCheckedSlong(TIFF *tif, TIFFDirEntry *direntry, |
3345 | | int32_t *value) |
3346 | 79 | { |
3347 | 79 | *value = *(int32_t *)(&direntry->tdir_offset); |
3348 | 79 | if (tif->tif_flags & TIFF_SWAB) |
3349 | 15 | TIFFSwabLong((uint32_t *)value); |
3350 | 79 | } |
3351 | | |
3352 | | static enum TIFFReadDirEntryErr |
3353 | | TIFFReadDirEntryCheckedLong8(TIFF *tif, TIFFDirEntry *direntry, uint64_t *value) |
3354 | 43 | { |
3355 | 43 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
3356 | 42 | { |
3357 | 42 | enum TIFFReadDirEntryErr err; |
3358 | 42 | uint32_t offset = direntry->tdir_offset.toff_long; |
3359 | 42 | if (tif->tif_flags & TIFF_SWAB) |
3360 | 7 | TIFFSwabLong(&offset); |
3361 | 42 | err = TIFFReadDirEntryData(tif, offset, 8, value); |
3362 | 42 | if (err != TIFFReadDirEntryErrOk) |
3363 | 11 | return (err); |
3364 | 42 | } |
3365 | 1 | else |
3366 | 1 | *value = direntry->tdir_offset.toff_long8; |
3367 | 32 | if (tif->tif_flags & TIFF_SWAB) |
3368 | 2 | TIFFSwabLong8(value); |
3369 | 32 | return (TIFFReadDirEntryErrOk); |
3370 | 43 | } |
3371 | | |
3372 | | static enum TIFFReadDirEntryErr |
3373 | | TIFFReadDirEntryCheckedSlong8(TIFF *tif, TIFFDirEntry *direntry, int64_t *value) |
3374 | 44 | { |
3375 | 44 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
3376 | 44 | { |
3377 | 44 | enum TIFFReadDirEntryErr err; |
3378 | 44 | uint32_t offset = direntry->tdir_offset.toff_long; |
3379 | 44 | if (tif->tif_flags & TIFF_SWAB) |
3380 | 10 | TIFFSwabLong(&offset); |
3381 | 44 | err = TIFFReadDirEntryData(tif, offset, 8, value); |
3382 | 44 | if (err != TIFFReadDirEntryErrOk) |
3383 | 15 | return (err); |
3384 | 44 | } |
3385 | 0 | else |
3386 | 0 | *value = *(int64_t *)(&direntry->tdir_offset); |
3387 | 29 | if (tif->tif_flags & TIFF_SWAB) |
3388 | 6 | TIFFSwabLong8((uint64_t *)value); |
3389 | 29 | return (TIFFReadDirEntryErrOk); |
3390 | 44 | } |
3391 | | |
3392 | | static enum TIFFReadDirEntryErr |
3393 | | TIFFReadDirEntryCheckedRational(TIFF *tif, TIFFDirEntry *direntry, |
3394 | | double *value) |
3395 | 52 | { |
3396 | 52 | UInt64Aligned_t m; |
3397 | | |
3398 | 52 | assert(sizeof(double) == 8); |
3399 | 52 | assert(sizeof(uint64_t) == 8); |
3400 | 52 | assert(sizeof(uint32_t) == 4); |
3401 | 52 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
3402 | 51 | { |
3403 | 51 | enum TIFFReadDirEntryErr err; |
3404 | 51 | uint32_t offset = direntry->tdir_offset.toff_long; |
3405 | 51 | if (tif->tif_flags & TIFF_SWAB) |
3406 | 6 | TIFFSwabLong(&offset); |
3407 | 51 | err = TIFFReadDirEntryData(tif, offset, 8, m.i); |
3408 | 51 | if (err != TIFFReadDirEntryErrOk) |
3409 | 12 | return (err); |
3410 | 51 | } |
3411 | 1 | else |
3412 | 1 | m.l = direntry->tdir_offset.toff_long8; |
3413 | 40 | if (tif->tif_flags & TIFF_SWAB) |
3414 | 5 | TIFFSwabArrayOfLong(m.i, 2); |
3415 | | /* Not completely sure what we should do when m.i[1]==0, but some */ |
3416 | | /* sanitizers do not like division by 0.0: */ |
3417 | | /* http://bugzilla.maptools.org/show_bug.cgi?id=2644 */ |
3418 | 40 | if (m.i[0] == 0 || m.i[1] == 0) |
3419 | 12 | *value = 0.0; |
3420 | 28 | else |
3421 | 28 | *value = (double)m.i[0] / (double)m.i[1]; |
3422 | 40 | return (TIFFReadDirEntryErrOk); |
3423 | 52 | } |
3424 | | |
3425 | | static enum TIFFReadDirEntryErr |
3426 | | TIFFReadDirEntryCheckedSrational(TIFF *tif, TIFFDirEntry *direntry, |
3427 | | double *value) |
3428 | 30 | { |
3429 | 30 | UInt64Aligned_t m; |
3430 | 30 | assert(sizeof(double) == 8); |
3431 | 30 | assert(sizeof(uint64_t) == 8); |
3432 | 30 | assert(sizeof(int32_t) == 4); |
3433 | 30 | assert(sizeof(uint32_t) == 4); |
3434 | 30 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
3435 | 30 | { |
3436 | 30 | enum TIFFReadDirEntryErr err; |
3437 | 30 | uint32_t offset = direntry->tdir_offset.toff_long; |
3438 | 30 | if (tif->tif_flags & TIFF_SWAB) |
3439 | 1 | TIFFSwabLong(&offset); |
3440 | 30 | err = TIFFReadDirEntryData(tif, offset, 8, m.i); |
3441 | 30 | if (err != TIFFReadDirEntryErrOk) |
3442 | 12 | return (err); |
3443 | 30 | } |
3444 | 0 | else |
3445 | 0 | m.l = direntry->tdir_offset.toff_long8; |
3446 | 18 | if (tif->tif_flags & TIFF_SWAB) |
3447 | 1 | TIFFSwabArrayOfLong(m.i, 2); |
3448 | | /* Not completely sure what we should do when m.i[1]==0, but some */ |
3449 | | /* sanitizers do not like division by 0.0: */ |
3450 | | /* http://bugzilla.maptools.org/show_bug.cgi?id=2644 */ |
3451 | 18 | if ((int32_t)m.i[0] == 0 || m.i[1] == 0) |
3452 | 12 | *value = 0.0; |
3453 | 6 | else |
3454 | 6 | *value = (double)((int32_t)m.i[0]) / (double)m.i[1]; |
3455 | 18 | return (TIFFReadDirEntryErrOk); |
3456 | 30 | } |
3457 | | |
3458 | | #if 0 |
3459 | | static enum TIFFReadDirEntryErr |
3460 | | TIFFReadDirEntryCheckedRationalDirect(TIFF *tif, TIFFDirEntry *direntry, |
3461 | | TIFFRational_t *value) |
3462 | | { /*--: SetGetRATIONAL_directly:_CustomTag: Read rational (and signed rationals) |
3463 | | directly --*/ |
3464 | | UInt64Aligned_t m; |
3465 | | |
3466 | | assert(sizeof(double) == 8); |
3467 | | assert(sizeof(uint64_t) == 8); |
3468 | | assert(sizeof(uint32_t) == 4); |
3469 | | |
3470 | | if (direntry->tdir_count != 1) |
3471 | | return (TIFFReadDirEntryErrCount); |
3472 | | |
3473 | | if (direntry->tdir_type != TIFF_RATIONAL && |
3474 | | direntry->tdir_type != TIFF_SRATIONAL) |
3475 | | return (TIFFReadDirEntryErrType); |
3476 | | |
3477 | | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
3478 | | { |
3479 | | enum TIFFReadDirEntryErr err; |
3480 | | uint32_t offset = direntry->tdir_offset.toff_long; |
3481 | | if (tif->tif_flags & TIFF_SWAB) |
3482 | | TIFFSwabLong(&offset); |
3483 | | err = TIFFReadDirEntryData(tif, offset, 8, m.i); |
3484 | | if (err != TIFFReadDirEntryErrOk) |
3485 | | return (err); |
3486 | | } |
3487 | | else |
3488 | | { |
3489 | | m.l = direntry->tdir_offset.toff_long8; |
3490 | | } |
3491 | | |
3492 | | if (tif->tif_flags & TIFF_SWAB) |
3493 | | TIFFSwabArrayOfLong(m.i, 2); |
3494 | | |
3495 | | value->uNum = m.i[0]; |
3496 | | value->uDenom = m.i[1]; |
3497 | | return (TIFFReadDirEntryErrOk); |
3498 | | } /*-- TIFFReadDirEntryCheckedRationalDirect() --*/ |
3499 | | #endif |
3500 | | |
3501 | | static void TIFFReadDirEntryCheckedFloat(TIFF *tif, TIFFDirEntry *direntry, |
3502 | | float *value) |
3503 | 0 | { |
3504 | 0 | union |
3505 | 0 | { |
3506 | 0 | float f; |
3507 | 0 | uint32_t i; |
3508 | 0 | } float_union; |
3509 | 0 | assert(sizeof(float) == 4); |
3510 | 0 | assert(sizeof(uint32_t) == 4); |
3511 | 0 | assert(sizeof(float_union) == 4); |
3512 | 0 | float_union.i = *(uint32_t *)(&direntry->tdir_offset); |
3513 | 0 | *value = float_union.f; |
3514 | 0 | if (tif->tif_flags & TIFF_SWAB) |
3515 | 0 | TIFFSwabLong((uint32_t *)value); |
3516 | 0 | } |
3517 | | |
3518 | | static enum TIFFReadDirEntryErr |
3519 | | TIFFReadDirEntryCheckedDouble(TIFF *tif, TIFFDirEntry *direntry, double *value) |
3520 | 11 | { |
3521 | 11 | assert(sizeof(double) == 8); |
3522 | 11 | assert(sizeof(uint64_t) == 8); |
3523 | 11 | assert(sizeof(UInt64Aligned_t) == 8); |
3524 | 11 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
3525 | 7 | { |
3526 | 7 | enum TIFFReadDirEntryErr err; |
3527 | 7 | uint32_t offset = direntry->tdir_offset.toff_long; |
3528 | 7 | if (tif->tif_flags & TIFF_SWAB) |
3529 | 4 | TIFFSwabLong(&offset); |
3530 | 7 | err = TIFFReadDirEntryData(tif, offset, 8, value); |
3531 | 7 | if (err != TIFFReadDirEntryErrOk) |
3532 | 5 | return (err); |
3533 | 7 | } |
3534 | 4 | else |
3535 | 4 | { |
3536 | 4 | UInt64Aligned_t uint64_union; |
3537 | 4 | uint64_union.l = direntry->tdir_offset.toff_long8; |
3538 | 4 | *value = uint64_union.d; |
3539 | 4 | } |
3540 | 6 | if (tif->tif_flags & TIFF_SWAB) |
3541 | 6 | TIFFSwabLong8((uint64_t *)value); |
3542 | 6 | return (TIFFReadDirEntryErrOk); |
3543 | 11 | } |
3544 | | |
3545 | | static enum TIFFReadDirEntryErr |
3546 | | TIFFReadDirEntryCheckRangeByteSbyte(int8_t value) |
3547 | 24 | { |
3548 | 24 | if (value < 0) |
3549 | 3 | return (TIFFReadDirEntryErrRange); |
3550 | 21 | else |
3551 | 21 | return (TIFFReadDirEntryErrOk); |
3552 | 24 | } |
3553 | | |
3554 | | static enum TIFFReadDirEntryErr |
3555 | | TIFFReadDirEntryCheckRangeByteShort(uint16_t value) |
3556 | 60 | { |
3557 | 60 | if (value > 0xFF) |
3558 | 7 | return (TIFFReadDirEntryErrRange); |
3559 | 53 | else |
3560 | 53 | return (TIFFReadDirEntryErrOk); |
3561 | 60 | } |
3562 | | |
3563 | | static enum TIFFReadDirEntryErr |
3564 | | TIFFReadDirEntryCheckRangeByteSshort(int16_t value) |
3565 | 181 | { |
3566 | 181 | if ((value < 0) || (value > 0xFF)) |
3567 | 3 | return (TIFFReadDirEntryErrRange); |
3568 | 178 | else |
3569 | 178 | return (TIFFReadDirEntryErrOk); |
3570 | 181 | } |
3571 | | |
3572 | | static enum TIFFReadDirEntryErr |
3573 | | TIFFReadDirEntryCheckRangeByteLong(uint32_t value) |
3574 | 37 | { |
3575 | 37 | if (value > 0xFF) |
3576 | 3 | return (TIFFReadDirEntryErrRange); |
3577 | 34 | else |
3578 | 34 | return (TIFFReadDirEntryErrOk); |
3579 | 37 | } |
3580 | | |
3581 | | static enum TIFFReadDirEntryErr |
3582 | | TIFFReadDirEntryCheckRangeByteSlong(int32_t value) |
3583 | 28 | { |
3584 | 28 | if ((value < 0) || (value > 0xFF)) |
3585 | 5 | return (TIFFReadDirEntryErrRange); |
3586 | 23 | else |
3587 | 23 | return (TIFFReadDirEntryErrOk); |
3588 | 28 | } |
3589 | | |
3590 | | static enum TIFFReadDirEntryErr |
3591 | | TIFFReadDirEntryCheckRangeByteLong8(uint64_t value) |
3592 | 55 | { |
3593 | 55 | if (value > 0xFF) |
3594 | 14 | return (TIFFReadDirEntryErrRange); |
3595 | 41 | else |
3596 | 41 | return (TIFFReadDirEntryErrOk); |
3597 | 55 | } |
3598 | | |
3599 | | static enum TIFFReadDirEntryErr |
3600 | | TIFFReadDirEntryCheckRangeByteSlong8(int64_t value) |
3601 | 285 | { |
3602 | 285 | if ((value < 0) || (value > 0xFF)) |
3603 | 19 | return (TIFFReadDirEntryErrRange); |
3604 | 266 | else |
3605 | 266 | return (TIFFReadDirEntryErrOk); |
3606 | 285 | } |
3607 | | |
3608 | | static enum TIFFReadDirEntryErr |
3609 | | TIFFReadDirEntryCheckRangeSbyteByte(uint8_t value) |
3610 | 0 | { |
3611 | 0 | if (value > 0x7F) |
3612 | 0 | return (TIFFReadDirEntryErrRange); |
3613 | 0 | else |
3614 | 0 | return (TIFFReadDirEntryErrOk); |
3615 | 0 | } |
3616 | | |
3617 | | static enum TIFFReadDirEntryErr |
3618 | | TIFFReadDirEntryCheckRangeSbyteShort(uint16_t value) |
3619 | 0 | { |
3620 | 0 | if (value > 0x7F) |
3621 | 0 | return (TIFFReadDirEntryErrRange); |
3622 | 0 | else |
3623 | 0 | return (TIFFReadDirEntryErrOk); |
3624 | 0 | } |
3625 | | |
3626 | | static enum TIFFReadDirEntryErr |
3627 | | TIFFReadDirEntryCheckRangeSbyteSshort(int16_t value) |
3628 | 0 | { |
3629 | 0 | if ((value < -0x80) || (value > 0x7F)) |
3630 | 0 | return (TIFFReadDirEntryErrRange); |
3631 | 0 | else |
3632 | 0 | return (TIFFReadDirEntryErrOk); |
3633 | 0 | } |
3634 | | |
3635 | | static enum TIFFReadDirEntryErr |
3636 | | TIFFReadDirEntryCheckRangeSbyteLong(uint32_t value) |
3637 | 0 | { |
3638 | 0 | if (value > 0x7F) |
3639 | 0 | return (TIFFReadDirEntryErrRange); |
3640 | 0 | else |
3641 | 0 | return (TIFFReadDirEntryErrOk); |
3642 | 0 | } |
3643 | | |
3644 | | static enum TIFFReadDirEntryErr |
3645 | | TIFFReadDirEntryCheckRangeSbyteSlong(int32_t value) |
3646 | 0 | { |
3647 | 0 | if ((value < -0x80) || (value > 0x7F)) |
3648 | 0 | return (TIFFReadDirEntryErrRange); |
3649 | 0 | else |
3650 | 0 | return (TIFFReadDirEntryErrOk); |
3651 | 0 | } |
3652 | | |
3653 | | static enum TIFFReadDirEntryErr |
3654 | | TIFFReadDirEntryCheckRangeSbyteLong8(uint64_t value) |
3655 | 0 | { |
3656 | 0 | if (value > 0x7F) |
3657 | 0 | return (TIFFReadDirEntryErrRange); |
3658 | 0 | else |
3659 | 0 | return (TIFFReadDirEntryErrOk); |
3660 | 0 | } |
3661 | | |
3662 | | static enum TIFFReadDirEntryErr |
3663 | | TIFFReadDirEntryCheckRangeSbyteSlong8(int64_t value) |
3664 | 0 | { |
3665 | 0 | if ((value < -0x80) || (value > 0x7F)) |
3666 | 0 | return (TIFFReadDirEntryErrRange); |
3667 | 0 | else |
3668 | 0 | return (TIFFReadDirEntryErrOk); |
3669 | 0 | } |
3670 | | |
3671 | | static enum TIFFReadDirEntryErr |
3672 | | TIFFReadDirEntryCheckRangeShortSbyte(int8_t value) |
3673 | 201 | { |
3674 | 201 | if (value < 0) |
3675 | 2 | return (TIFFReadDirEntryErrRange); |
3676 | 199 | else |
3677 | 199 | return (TIFFReadDirEntryErrOk); |
3678 | 201 | } |
3679 | | |
3680 | | static enum TIFFReadDirEntryErr |
3681 | | TIFFReadDirEntryCheckRangeShortSshort(int16_t value) |
3682 | 81 | { |
3683 | 81 | if (value < 0) |
3684 | 5 | return (TIFFReadDirEntryErrRange); |
3685 | 76 | else |
3686 | 76 | return (TIFFReadDirEntryErrOk); |
3687 | 81 | } |
3688 | | |
3689 | | static enum TIFFReadDirEntryErr |
3690 | | TIFFReadDirEntryCheckRangeShortLong(uint32_t value) |
3691 | 213 | { |
3692 | 213 | if (value > 0xFFFF) |
3693 | 7 | return (TIFFReadDirEntryErrRange); |
3694 | 206 | else |
3695 | 206 | return (TIFFReadDirEntryErrOk); |
3696 | 213 | } |
3697 | | |
3698 | | static enum TIFFReadDirEntryErr |
3699 | | TIFFReadDirEntryCheckRangeShortSlong(int32_t value) |
3700 | 49 | { |
3701 | 49 | if ((value < 0) || (value > 0xFFFF)) |
3702 | 19 | return (TIFFReadDirEntryErrRange); |
3703 | 30 | else |
3704 | 30 | return (TIFFReadDirEntryErrOk); |
3705 | 49 | } |
3706 | | |
3707 | | static enum TIFFReadDirEntryErr |
3708 | | TIFFReadDirEntryCheckRangeShortLong8(uint64_t value) |
3709 | 24 | { |
3710 | 24 | if (value > 0xFFFF) |
3711 | 12 | return (TIFFReadDirEntryErrRange); |
3712 | 12 | else |
3713 | 12 | return (TIFFReadDirEntryErrOk); |
3714 | 24 | } |
3715 | | |
3716 | | static enum TIFFReadDirEntryErr |
3717 | | TIFFReadDirEntryCheckRangeShortSlong8(int64_t value) |
3718 | 55 | { |
3719 | 55 | if ((value < 0) || (value > 0xFFFF)) |
3720 | 17 | return (TIFFReadDirEntryErrRange); |
3721 | 38 | else |
3722 | 38 | return (TIFFReadDirEntryErrOk); |
3723 | 55 | } |
3724 | | |
3725 | | static enum TIFFReadDirEntryErr |
3726 | | TIFFReadDirEntryCheckRangeSshortShort(uint16_t value) |
3727 | 0 | { |
3728 | 0 | if (value > 0x7FFF) |
3729 | 0 | return (TIFFReadDirEntryErrRange); |
3730 | 0 | else |
3731 | 0 | return (TIFFReadDirEntryErrOk); |
3732 | 0 | } |
3733 | | |
3734 | | static enum TIFFReadDirEntryErr |
3735 | | TIFFReadDirEntryCheckRangeSshortLong(uint32_t value) |
3736 | 0 | { |
3737 | 0 | if (value > 0x7FFF) |
3738 | 0 | return (TIFFReadDirEntryErrRange); |
3739 | 0 | else |
3740 | 0 | return (TIFFReadDirEntryErrOk); |
3741 | 0 | } |
3742 | | |
3743 | | static enum TIFFReadDirEntryErr |
3744 | | TIFFReadDirEntryCheckRangeSshortSlong(int32_t value) |
3745 | 0 | { |
3746 | 0 | if ((value < -0x8000) || (value > 0x7FFF)) |
3747 | 0 | return (TIFFReadDirEntryErrRange); |
3748 | 0 | else |
3749 | 0 | return (TIFFReadDirEntryErrOk); |
3750 | 0 | } |
3751 | | |
3752 | | static enum TIFFReadDirEntryErr |
3753 | | TIFFReadDirEntryCheckRangeSshortLong8(uint64_t value) |
3754 | 0 | { |
3755 | 0 | if (value > 0x7FFF) |
3756 | 0 | return (TIFFReadDirEntryErrRange); |
3757 | 0 | else |
3758 | 0 | return (TIFFReadDirEntryErrOk); |
3759 | 0 | } |
3760 | | |
3761 | | static enum TIFFReadDirEntryErr |
3762 | | TIFFReadDirEntryCheckRangeSshortSlong8(int64_t value) |
3763 | 0 | { |
3764 | 0 | if ((value < -0x8000) || (value > 0x7FFF)) |
3765 | 0 | return (TIFFReadDirEntryErrRange); |
3766 | 0 | else |
3767 | 0 | return (TIFFReadDirEntryErrOk); |
3768 | 0 | } |
3769 | | |
3770 | | static enum TIFFReadDirEntryErr |
3771 | | TIFFReadDirEntryCheckRangeLongSbyte(int8_t value) |
3772 | 80 | { |
3773 | 80 | if (value < 0) |
3774 | 5 | return (TIFFReadDirEntryErrRange); |
3775 | 75 | else |
3776 | 75 | return (TIFFReadDirEntryErrOk); |
3777 | 80 | } |
3778 | | |
3779 | | static enum TIFFReadDirEntryErr |
3780 | | TIFFReadDirEntryCheckRangeLongSshort(int16_t value) |
3781 | 182 | { |
3782 | 182 | if (value < 0) |
3783 | 3 | return (TIFFReadDirEntryErrRange); |
3784 | 179 | else |
3785 | 179 | return (TIFFReadDirEntryErrOk); |
3786 | 182 | } |
3787 | | |
3788 | | static enum TIFFReadDirEntryErr |
3789 | | TIFFReadDirEntryCheckRangeLongSlong(int32_t value) |
3790 | 106 | { |
3791 | 106 | if (value < 0) |
3792 | 7 | return (TIFFReadDirEntryErrRange); |
3793 | 99 | else |
3794 | 99 | return (TIFFReadDirEntryErrOk); |
3795 | 106 | } |
3796 | | |
3797 | | static enum TIFFReadDirEntryErr |
3798 | | TIFFReadDirEntryCheckRangeLongLong8(uint64_t value) |
3799 | 70 | { |
3800 | 70 | if (value > UINT32_MAX) |
3801 | 21 | return (TIFFReadDirEntryErrRange); |
3802 | 49 | else |
3803 | 49 | return (TIFFReadDirEntryErrOk); |
3804 | 70 | } |
3805 | | |
3806 | | static enum TIFFReadDirEntryErr |
3807 | | TIFFReadDirEntryCheckRangeLongSlong8(int64_t value) |
3808 | 717 | { |
3809 | 717 | if ((value < 0) || (value > (int64_t)UINT32_MAX)) |
3810 | 14 | return (TIFFReadDirEntryErrRange); |
3811 | 703 | else |
3812 | 703 | return (TIFFReadDirEntryErrOk); |
3813 | 717 | } |
3814 | | |
3815 | | static enum TIFFReadDirEntryErr |
3816 | | TIFFReadDirEntryCheckRangeSlongLong(uint32_t value) |
3817 | 0 | { |
3818 | 0 | if (value > 0x7FFFFFFFUL) |
3819 | 0 | return (TIFFReadDirEntryErrRange); |
3820 | 0 | else |
3821 | 0 | return (TIFFReadDirEntryErrOk); |
3822 | 0 | } |
3823 | | |
3824 | | /* Check that the 8-byte unsigned value can fit in a 4-byte unsigned range */ |
3825 | | static enum TIFFReadDirEntryErr |
3826 | | TIFFReadDirEntryCheckRangeSlongLong8(uint64_t value) |
3827 | 0 | { |
3828 | 0 | if (value > 0x7FFFFFFF) |
3829 | 0 | return (TIFFReadDirEntryErrRange); |
3830 | 0 | else |
3831 | 0 | return (TIFFReadDirEntryErrOk); |
3832 | 0 | } |
3833 | | |
3834 | | /* Check that the 8-byte signed value can fit in a 4-byte signed range */ |
3835 | | static enum TIFFReadDirEntryErr |
3836 | | TIFFReadDirEntryCheckRangeSlongSlong8(int64_t value) |
3837 | 0 | { |
3838 | 0 | if ((value < 0 - ((int64_t)0x7FFFFFFF + 1)) || (value > 0x7FFFFFFF)) |
3839 | 0 | return (TIFFReadDirEntryErrRange); |
3840 | 0 | else |
3841 | 0 | return (TIFFReadDirEntryErrOk); |
3842 | 0 | } |
3843 | | |
3844 | | static enum TIFFReadDirEntryErr |
3845 | | TIFFReadDirEntryCheckRangeLong8Sbyte(int8_t value) |
3846 | 38 | { |
3847 | 38 | if (value < 0) |
3848 | 0 | return (TIFFReadDirEntryErrRange); |
3849 | 38 | else |
3850 | 38 | return (TIFFReadDirEntryErrOk); |
3851 | 38 | } |
3852 | | |
3853 | | static enum TIFFReadDirEntryErr |
3854 | | TIFFReadDirEntryCheckRangeLong8Sshort(int16_t value) |
3855 | 93 | { |
3856 | 93 | if (value < 0) |
3857 | 3 | return (TIFFReadDirEntryErrRange); |
3858 | 90 | else |
3859 | 90 | return (TIFFReadDirEntryErrOk); |
3860 | 93 | } |
3861 | | |
3862 | | static enum TIFFReadDirEntryErr |
3863 | | TIFFReadDirEntryCheckRangeLong8Slong(int32_t value) |
3864 | 12 | { |
3865 | 12 | if (value < 0) |
3866 | 1 | return (TIFFReadDirEntryErrRange); |
3867 | 11 | else |
3868 | 11 | return (TIFFReadDirEntryErrOk); |
3869 | 12 | } |
3870 | | |
3871 | | static enum TIFFReadDirEntryErr |
3872 | | TIFFReadDirEntryCheckRangeLong8Slong8(int64_t value) |
3873 | 54 | { |
3874 | 54 | if (value < 0) |
3875 | 5 | return (TIFFReadDirEntryErrRange); |
3876 | 49 | else |
3877 | 49 | return (TIFFReadDirEntryErrOk); |
3878 | 54 | } |
3879 | | |
3880 | | static enum TIFFReadDirEntryErr |
3881 | | TIFFReadDirEntryCheckRangeSlong8Long8(uint64_t value) |
3882 | 0 | { |
3883 | 0 | if (value > INT64_MAX) |
3884 | 0 | return (TIFFReadDirEntryErrRange); |
3885 | 0 | else |
3886 | 0 | return (TIFFReadDirEntryErrOk); |
3887 | 0 | } |
3888 | | |
3889 | | static enum TIFFReadDirEntryErr TIFFReadDirEntryData(TIFF *tif, uint64_t offset, |
3890 | | tmsize_t size, void *dest) |
3891 | 174 | { |
3892 | 174 | assert(size > 0); |
3893 | 174 | if (!isMapped(tif)) |
3894 | 174 | { |
3895 | 174 | if (!SeekOK(tif, offset)) |
3896 | 47 | return (TIFFReadDirEntryErrIo); |
3897 | 127 | if (!ReadOK(tif, dest, size)) |
3898 | 8 | return (TIFFReadDirEntryErrIo); |
3899 | 127 | } |
3900 | 0 | else |
3901 | 0 | { |
3902 | 0 | size_t ma, mb; |
3903 | 0 | ma = (size_t)offset; |
3904 | 0 | if ((uint64_t)ma != offset || ma > (~(size_t)0) - (size_t)size) |
3905 | 0 | { |
3906 | 0 | return TIFFReadDirEntryErrIo; |
3907 | 0 | } |
3908 | 0 | mb = ma + size; |
3909 | 0 | if (mb > (uint64_t)tif->tif_size) |
3910 | 0 | return (TIFFReadDirEntryErrIo); |
3911 | 0 | _TIFFmemcpy(dest, tif->tif_base + ma, size); |
3912 | 0 | } |
3913 | 119 | return (TIFFReadDirEntryErrOk); |
3914 | 174 | } |
3915 | | |
3916 | | static void TIFFReadDirEntryOutputErr(TIFF *tif, enum TIFFReadDirEntryErr err, |
3917 | | const char *module, const char *tagname, |
3918 | | int recover) |
3919 | 2.42k | { |
3920 | 2.42k | if (!recover) |
3921 | 196 | { |
3922 | 196 | switch (err) |
3923 | 196 | { |
3924 | 18 | case TIFFReadDirEntryErrCount: |
3925 | 18 | TIFFErrorExtR(tif, module, "Incorrect count for \"%s\"", |
3926 | 18 | tagname); |
3927 | 18 | break; |
3928 | 47 | case TIFFReadDirEntryErrType: |
3929 | 47 | TIFFErrorExtR(tif, module, "Incompatible type for \"%s\"", |
3930 | 47 | tagname); |
3931 | 47 | break; |
3932 | 70 | case TIFFReadDirEntryErrIo: |
3933 | 70 | TIFFErrorExtR(tif, module, "IO error during reading of \"%s\"", |
3934 | 70 | tagname); |
3935 | 70 | break; |
3936 | 54 | case TIFFReadDirEntryErrRange: |
3937 | 54 | TIFFErrorExtR(tif, module, "Incorrect value for \"%s\"", |
3938 | 54 | tagname); |
3939 | 54 | break; |
3940 | 2 | case TIFFReadDirEntryErrPsdif: |
3941 | 2 | TIFFErrorExtR( |
3942 | 2 | tif, module, |
3943 | 2 | "Cannot handle different values per sample for \"%s\"", |
3944 | 2 | tagname); |
3945 | 2 | break; |
3946 | 4 | case TIFFReadDirEntryErrSizesan: |
3947 | 4 | TIFFErrorExtR(tif, module, |
3948 | 4 | "Sanity check on size of \"%s\" value failed", |
3949 | 4 | tagname); |
3950 | 4 | break; |
3951 | 1 | case TIFFReadDirEntryErrAlloc: |
3952 | 1 | TIFFErrorExtR(tif, module, "Out of memory reading of \"%s\"", |
3953 | 1 | tagname); |
3954 | 1 | break; |
3955 | 0 | default: |
3956 | 0 | assert(0); /* we should never get here */ |
3957 | 0 | break; |
3958 | 196 | } |
3959 | 196 | } |
3960 | 2.22k | else |
3961 | 2.22k | { |
3962 | 2.22k | switch (err) |
3963 | 2.22k | { |
3964 | 382 | case TIFFReadDirEntryErrCount: |
3965 | 382 | TIFFWarningExtR(tif, module, |
3966 | 382 | "Incorrect count for \"%s\"; tag ignored", |
3967 | 382 | tagname); |
3968 | 382 | break; |
3969 | 78 | case TIFFReadDirEntryErrType: |
3970 | 78 | TIFFWarningExtR(tif, module, |
3971 | 78 | "Incompatible type for \"%s\"; tag ignored", |
3972 | 78 | tagname); |
3973 | 78 | break; |
3974 | 1.15k | case TIFFReadDirEntryErrIo: |
3975 | 1.15k | TIFFWarningExtR( |
3976 | 1.15k | tif, module, |
3977 | 1.15k | "IO error during reading of \"%s\"; tag ignored", tagname); |
3978 | 1.15k | break; |
3979 | 122 | case TIFFReadDirEntryErrRange: |
3980 | 122 | TIFFWarningExtR(tif, module, |
3981 | 122 | "Incorrect value for \"%s\"; tag ignored", |
3982 | 122 | tagname); |
3983 | 122 | break; |
3984 | 0 | case TIFFReadDirEntryErrPsdif: |
3985 | 0 | TIFFWarningExtR(tif, module, |
3986 | 0 | "Cannot handle different values per sample for " |
3987 | 0 | "\"%s\"; tag ignored", |
3988 | 0 | tagname); |
3989 | 0 | break; |
3990 | 272 | case TIFFReadDirEntryErrSizesan: |
3991 | 272 | TIFFWarningExtR( |
3992 | 272 | tif, module, |
3993 | 272 | "Sanity check on size of \"%s\" value failed; tag ignored", |
3994 | 272 | tagname); |
3995 | 272 | break; |
3996 | 212 | case TIFFReadDirEntryErrAlloc: |
3997 | 212 | TIFFWarningExtR(tif, module, |
3998 | 212 | "Out of memory reading of \"%s\"; tag ignored", |
3999 | 212 | tagname); |
4000 | 212 | break; |
4001 | 0 | default: |
4002 | 0 | assert(0); /* we should never get here */ |
4003 | 0 | break; |
4004 | 2.22k | } |
4005 | 2.22k | } |
4006 | 2.42k | } |
4007 | | |
4008 | | /* |
4009 | | * Return the maximum number of color channels specified for a given photometric |
4010 | | * type. 0 is returned if photometric type isn't supported or no default value |
4011 | | * is defined by the specification. |
4012 | | */ |
4013 | | static int _TIFFGetMaxColorChannels(uint16_t photometric) |
4014 | 407 | { |
4015 | 407 | switch (photometric) |
4016 | 407 | { |
4017 | 26 | case PHOTOMETRIC_PALETTE: |
4018 | 182 | case PHOTOMETRIC_MINISWHITE: |
4019 | 213 | case PHOTOMETRIC_MINISBLACK: |
4020 | 213 | return 1; |
4021 | 76 | case PHOTOMETRIC_YCBCR: |
4022 | 106 | case PHOTOMETRIC_RGB: |
4023 | 109 | case PHOTOMETRIC_CIELAB: |
4024 | 153 | case PHOTOMETRIC_LOGLUV: |
4025 | 154 | case PHOTOMETRIC_ITULAB: |
4026 | 154 | case PHOTOMETRIC_ICCLAB: |
4027 | 154 | return 3; |
4028 | 18 | case PHOTOMETRIC_SEPARATED: |
4029 | 20 | case PHOTOMETRIC_MASK: |
4030 | 20 | return 4; |
4031 | 2 | case PHOTOMETRIC_LOGL: |
4032 | 2 | case PHOTOMETRIC_CFA: |
4033 | 20 | default: |
4034 | 20 | return 0; |
4035 | 407 | } |
4036 | 407 | } |
4037 | | |
4038 | | static int ByteCountLooksBad(TIFF *tif) |
4039 | 97 | { |
4040 | | /* |
4041 | | * Assume we have wrong StripByteCount value (in case |
4042 | | * of single strip) in following cases: |
4043 | | * - it is equal to zero along with StripOffset; |
4044 | | * - it is larger than file itself (in case of uncompressed |
4045 | | * image); |
4046 | | * - it is smaller than the size of the bytes per row |
4047 | | * multiplied on the number of rows. The last case should |
4048 | | * not be checked in the case of writing new image, |
4049 | | * because we may do not know the exact strip size |
4050 | | * until the whole image will be written and directory |
4051 | | * dumped out. |
4052 | | */ |
4053 | 97 | uint64_t bytecount = TIFFGetStrileByteCount(tif, 0); |
4054 | 97 | uint64_t offset = TIFFGetStrileOffset(tif, 0); |
4055 | 97 | uint64_t filesize; |
4056 | | |
4057 | 97 | if (offset == 0) |
4058 | 9 | return 0; |
4059 | 88 | if (bytecount == 0) |
4060 | 1 | return 1; |
4061 | 87 | if (tif->tif_dir.td_compression != COMPRESSION_NONE) |
4062 | 32 | return 0; |
4063 | 55 | filesize = TIFFGetFileSize(tif); |
4064 | 55 | if (offset <= filesize && bytecount > filesize - offset) |
4065 | 11 | return 1; |
4066 | 44 | if (tif->tif_mode == O_RDONLY) |
4067 | 44 | { |
4068 | 44 | uint64_t scanlinesize = TIFFScanlineSize64(tif); |
4069 | 44 | if (tif->tif_dir.td_imagelength > 0 && |
4070 | 39 | scanlinesize > UINT64_MAX / tif->tif_dir.td_imagelength) |
4071 | 0 | { |
4072 | 0 | return 1; |
4073 | 0 | } |
4074 | 44 | if (bytecount < scanlinesize * tif->tif_dir.td_imagelength) |
4075 | 10 | return 1; |
4076 | 44 | } |
4077 | 34 | return 0; |
4078 | 44 | } |
4079 | | |
4080 | | /* |
4081 | | * To evaluate the IFD data size when reading, save the offset and data size of |
4082 | | * all data that does not fit into the IFD entries themselves. |
4083 | | */ |
4084 | | static bool EvaluateIFDdatasizeReading(TIFF *tif, TIFFDirEntry *dp) |
4085 | 2.57k | { |
4086 | 2.57k | const uint64_t data_width = TIFFDataWidth(dp->tdir_type); |
4087 | 2.57k | uint64_t datalength; |
4088 | 2.57k | if (data_width != 0 && dp->tdir_count > UINT64_MAX / data_width) |
4089 | 1 | { |
4090 | 1 | TIFFErrorExtR(tif, "EvaluateIFDdatasizeReading", |
4091 | 1 | "Too large IFD data size"); |
4092 | 1 | return false; |
4093 | 1 | } |
4094 | 2.56k | datalength = dp->tdir_count * data_width; |
4095 | 2.56k | if (datalength > ((tif->tif_flags & TIFF_BIGTIFF) ? 0x8U : 0x4U)) |
4096 | 1.26k | { |
4097 | 1.26k | if (tif->tif_dir.td_dirdatasize_read > UINT64_MAX - datalength) |
4098 | 0 | { |
4099 | 0 | TIFFErrorExtR(tif, "EvaluateIFDdatasizeReading", |
4100 | 0 | "Too large IFD data size"); |
4101 | 0 | return false; |
4102 | 0 | } |
4103 | 1.26k | tif->tif_dir.td_dirdatasize_read += datalength; |
4104 | 1.26k | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
4105 | 1.23k | { |
4106 | | /* The offset of TIFFDirEntry are not swapped when read in. That has |
4107 | | * to be done when used. */ |
4108 | 1.23k | uint32_t offset = dp->tdir_offset.toff_long; |
4109 | 1.23k | if (tif->tif_flags & TIFF_SWAB) |
4110 | 167 | TIFFSwabLong(&offset); |
4111 | 1.23k | tif->tif_dir |
4112 | 1.23k | .td_dirdatasize_offsets[tif->tif_dir.td_dirdatasize_Noffsets] |
4113 | 1.23k | .offset = (uint64_t)offset; |
4114 | 1.23k | } |
4115 | 28 | else |
4116 | 28 | { |
4117 | 28 | tif->tif_dir |
4118 | 28 | .td_dirdatasize_offsets[tif->tif_dir.td_dirdatasize_Noffsets] |
4119 | 28 | .offset = dp->tdir_offset.toff_long8; |
4120 | 28 | if (tif->tif_flags & TIFF_SWAB) |
4121 | 8 | TIFFSwabLong8( |
4122 | 8 | &tif->tif_dir |
4123 | 8 | .td_dirdatasize_offsets[tif->tif_dir |
4124 | 8 | .td_dirdatasize_Noffsets] |
4125 | 8 | .offset); |
4126 | 28 | } |
4127 | 1.26k | tif->tif_dir |
4128 | 1.26k | .td_dirdatasize_offsets[tif->tif_dir.td_dirdatasize_Noffsets] |
4129 | 1.26k | .length = datalength; |
4130 | 1.26k | tif->tif_dir.td_dirdatasize_Noffsets++; |
4131 | 1.26k | } |
4132 | 2.56k | return true; |
4133 | 2.56k | } |
4134 | | |
4135 | | /* |
4136 | | * Compare function for qsort() sorting TIFFEntryOffsetAndLength array entries. |
4137 | | */ |
4138 | | static int cmpTIFFEntryOffsetAndLength(const void *a, const void *b) |
4139 | 0 | { |
4140 | 0 | const TIFFEntryOffsetAndLength *ta = (const TIFFEntryOffsetAndLength *)a; |
4141 | 0 | const TIFFEntryOffsetAndLength *tb = (const TIFFEntryOffsetAndLength *)b; |
4142 | | /* Compare offsets */ |
4143 | 0 | if (ta->offset > tb->offset) |
4144 | 0 | return 1; |
4145 | 0 | else if (ta->offset < tb->offset) |
4146 | 0 | return -1; |
4147 | 0 | else |
4148 | 0 | return 0; |
4149 | 0 | } |
4150 | | |
4151 | | /* |
4152 | | * Determine the IFD data size after reading an IFD from the file that can be |
4153 | | * overwritten and saving it in tif_dir.td_dirdatasize_read. This data size |
4154 | | * includes the IFD entries themselves as well as the data that does not fit |
4155 | | * directly into the IFD entries but is located directly after the IFD entries |
4156 | | * in the file. |
4157 | | */ |
4158 | | static void CalcFinalIFDdatasizeReading(TIFF *tif, uint16_t dircount) |
4159 | 764 | { |
4160 | 764 | uint64_t IFDendoffset; |
4161 | 764 | uint64_t size; |
4162 | 764 | uint64_t offset; |
4163 | 764 | uint32_t i; |
4164 | | /* IFD data size is only needed if file-writing is enabled. |
4165 | | * This also avoids the seek() to EOF to determine the file size, which |
4166 | | * causes the stdin-streaming-friendly mode of libtiff for GDAL to fail. */ |
4167 | 764 | if (tif->tif_mode == O_RDONLY) |
4168 | 764 | return; |
4169 | | |
4170 | | /* Sort TIFFEntryOffsetAndLength array in ascending order. */ |
4171 | 0 | qsort(tif->tif_dir.td_dirdatasize_offsets, |
4172 | 0 | tif->tif_dir.td_dirdatasize_Noffsets, |
4173 | 0 | sizeof(TIFFEntryOffsetAndLength), cmpTIFFEntryOffsetAndLength); |
4174 | | |
4175 | | /* Get offset of end of IFD entry space. */ |
4176 | 0 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
4177 | 0 | IFDendoffset = tif->tif_diroff + 2 + dircount * 12 + 4; |
4178 | 0 | else |
4179 | 0 | IFDendoffset = tif->tif_diroff + 8 + dircount * 20 + 8; |
4180 | | |
4181 | | /* Check which offsets are right behind IFD entries. However, LibTIFF |
4182 | | * increments the writing address for every external data to an even offset. |
4183 | | * Thus gaps of 1 byte can occur. */ |
4184 | 0 | size = 0; |
4185 | 0 | for (i = 0; i < tif->tif_dir.td_dirdatasize_Noffsets; i++) |
4186 | 0 | { |
4187 | 0 | offset = tif->tif_dir.td_dirdatasize_offsets[i].offset; |
4188 | 0 | if (offset == IFDendoffset) |
4189 | 0 | { |
4190 | 0 | size += tif->tif_dir.td_dirdatasize_offsets[i].length; |
4191 | 0 | IFDendoffset += tif->tif_dir.td_dirdatasize_offsets[i].length; |
4192 | 0 | } |
4193 | 0 | else if (offset == IFDendoffset + 1) |
4194 | 0 | { |
4195 | | /* Add gap byte after previous IFD data set. */ |
4196 | 0 | size += tif->tif_dir.td_dirdatasize_offsets[i].length + 1; |
4197 | 0 | IFDendoffset += tif->tif_dir.td_dirdatasize_offsets[i].length; |
4198 | 0 | } |
4199 | 0 | else |
4200 | 0 | { |
4201 | | /* Further data is no more continuously after IFD */ |
4202 | 0 | break; |
4203 | 0 | } |
4204 | 0 | } |
4205 | | /* Check for gap byte of some easy cases. This should cover 90% of cases. |
4206 | | * Otherwise, IFD will be re-written even it might be safely overwritten. */ |
4207 | 0 | if (tif->tif_nextdiroff != 0) |
4208 | 0 | { |
4209 | 0 | if (tif->tif_nextdiroff == IFDendoffset + 1) |
4210 | 0 | size++; |
4211 | 0 | } |
4212 | 0 | else |
4213 | 0 | { |
4214 | | /* Check for IFD data ends at EOF. Then IFD can always be safely |
4215 | | * overwritten. */ |
4216 | 0 | offset = TIFFSeekFile(tif, 0, SEEK_END); |
4217 | 0 | if (offset == IFDendoffset) |
4218 | 0 | { |
4219 | 0 | tif->tif_dir.td_dirdatasize_read = UINT64_MAX; |
4220 | 0 | return; |
4221 | 0 | } |
4222 | 0 | } |
4223 | | |
4224 | | /* Finally, add the size of the IFD tag entries themselves. */ |
4225 | 0 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
4226 | 0 | tif->tif_dir.td_dirdatasize_read = 2 + dircount * 12 + 4 + size; |
4227 | 0 | else |
4228 | 0 | tif->tif_dir.td_dirdatasize_read = 8 + dircount * 20 + 8 + size; |
4229 | 0 | } /*-- CalcFinalIFDdatasizeReading() --*/ |
4230 | | |
4231 | | /* |
4232 | | * Read the next TIFF directory from a file and convert it to the internal |
4233 | | * format. We read directories sequentially. |
4234 | | */ |
4235 | | int TIFFReadDirectory(TIFF *tif) |
4236 | 1.09k | { |
4237 | 1.09k | static const char module[] = "TIFFReadDirectory"; |
4238 | 1.09k | TIFFDirEntry *dir; |
4239 | 1.09k | uint16_t dircount; |
4240 | 1.09k | TIFFDirEntry *dp; |
4241 | 1.09k | uint16_t di; |
4242 | 1.09k | const TIFFField *fip; |
4243 | 1.09k | uint32_t fii = FAILED_FII; |
4244 | 1.09k | toff_t nextdiroff; |
4245 | 1.09k | int bitspersample_read = FALSE; |
4246 | 1.09k | int color_channels; |
4247 | | |
4248 | 1.09k | if (tif->tif_nextdiroff == 0) |
4249 | 104 | { |
4250 | | /* In this special case, tif_diroff needs also to be set to 0. |
4251 | | * This is behind the last IFD, thus no checking or reading necessary. |
4252 | | */ |
4253 | 104 | tif->tif_diroff = tif->tif_nextdiroff; |
4254 | 104 | return 0; |
4255 | 104 | } |
4256 | | |
4257 | 988 | nextdiroff = tif->tif_nextdiroff; |
4258 | | /* tif_curdir++ and tif_nextdiroff should only be updated after SUCCESSFUL |
4259 | | * reading of the directory. Otherwise, invalid IFD offsets could corrupt |
4260 | | * the IFD list. */ |
4261 | 988 | if (!_TIFFCheckDirNumberAndOffset(tif, |
4262 | 988 | tif->tif_curdir == |
4263 | 988 | TIFF_NON_EXISTENT_DIR_NUMBER |
4264 | 988 | ? 0 |
4265 | 988 | : tif->tif_curdir + 1, |
4266 | 988 | nextdiroff)) |
4267 | 0 | { |
4268 | 0 | return 0; /* bad offset (IFD looping or more than TIFF_MAX_DIR_COUNT |
4269 | | IFDs) */ |
4270 | 0 | } |
4271 | 988 | dircount = TIFFFetchDirectory(tif, nextdiroff, &dir, &tif->tif_nextdiroff); |
4272 | 988 | if (!dircount) |
4273 | 129 | { |
4274 | 129 | TIFFErrorExtR(tif, module, |
4275 | 129 | "Failed to read directory at offset %" PRIu64, |
4276 | 129 | nextdiroff); |
4277 | 129 | return 0; |
4278 | 129 | } |
4279 | | /* Set global values after a valid directory has been fetched. |
4280 | | * tif_diroff is already set to nextdiroff in TIFFFetchDirectory() in the |
4281 | | * beginning. */ |
4282 | 859 | if (tif->tif_curdir == TIFF_NON_EXISTENT_DIR_NUMBER) |
4283 | 855 | tif->tif_curdir = 0; |
4284 | 4 | else |
4285 | 4 | tif->tif_curdir++; |
4286 | | |
4287 | 859 | TIFFReadDirectoryCheckOrder(tif, dir, dircount); |
4288 | | |
4289 | | /* |
4290 | | * Mark duplicates of any tag to be ignored (bugzilla 1994) |
4291 | | * to avoid certain pathological problems. |
4292 | | */ |
4293 | 859 | { |
4294 | 859 | TIFFDirEntry *ma; |
4295 | 859 | uint16_t mb; |
4296 | 45.3k | for (ma = dir, mb = 0; mb < dircount; ma++, mb++) |
4297 | 44.4k | { |
4298 | 44.4k | TIFFDirEntry *na; |
4299 | 44.4k | uint16_t nb; |
4300 | 20.4M | for (na = ma + 1, nb = mb + 1; nb < dircount; na++, nb++) |
4301 | 20.3M | { |
4302 | 20.3M | if (ma->tdir_tag == na->tdir_tag) |
4303 | 1.77M | { |
4304 | 1.77M | na->tdir_ignore = TRUE; |
4305 | 1.77M | } |
4306 | 20.3M | } |
4307 | 44.4k | } |
4308 | 859 | } |
4309 | | |
4310 | 859 | tif->tif_flags &= ~TIFF_BEENWRITING; /* reset before new dir */ |
4311 | 859 | tif->tif_flags &= ~TIFF_BUF4WRITE; /* reset before new dir */ |
4312 | 859 | tif->tif_flags &= ~TIFF_CHOPPEDUPARRAYS; |
4313 | | |
4314 | | /* free any old stuff and reinit */ |
4315 | 859 | (*tif->tif_cleanup)(tif); /* cleanup any previous compression state */ |
4316 | 859 | TIFFFreeDirectory(tif); |
4317 | 859 | TIFFDefaultDirectory(tif); |
4318 | | |
4319 | | /* After setup a fresh directory indicate that now active IFD is also |
4320 | | * present on file, even if its entries could not be read successfully |
4321 | | * below. */ |
4322 | 859 | tif->tif_dir.td_iswrittentofile = TRUE; |
4323 | | |
4324 | | /* Allocate arrays for offset values outside IFD entry for IFD data size |
4325 | | * checking. Note: Counter are reset within TIFFFreeDirectory(). */ |
4326 | 859 | tif->tif_dir.td_dirdatasize_offsets = |
4327 | 859 | (TIFFEntryOffsetAndLength *)_TIFFmallocExt( |
4328 | 859 | tif, dircount * sizeof(TIFFEntryOffsetAndLength)); |
4329 | 859 | if (tif->tif_dir.td_dirdatasize_offsets == NULL) |
4330 | 0 | { |
4331 | 0 | TIFFErrorExtR( |
4332 | 0 | tif, module, |
4333 | 0 | "Failed to allocate memory for counting IFD data size at reading"); |
4334 | 0 | goto bad; |
4335 | 0 | } |
4336 | | /* |
4337 | | * Electronic Arts writes gray-scale TIFF files |
4338 | | * without a PlanarConfiguration directory entry. |
4339 | | * Thus we setup a default value here, even though |
4340 | | * the TIFF spec says there is no default value. |
4341 | | * After PlanarConfiguration is preset in TIFFDefaultDirectory() |
4342 | | * the following setting is not needed, but does not harm either. |
4343 | | */ |
4344 | 859 | TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); |
4345 | | /* |
4346 | | * Setup default value and then make a pass over |
4347 | | * the fields to check type and tag information, |
4348 | | * and to extract info required to size data |
4349 | | * structures. A second pass is made afterwards |
4350 | | * to read in everything not taken in the first pass. |
4351 | | * But we must process the Compression tag first |
4352 | | * in order to merge in codec-private tag definitions (otherwise |
4353 | | * we may get complaints about unknown tags). However, the |
4354 | | * Compression tag may be dependent on the SamplesPerPixel |
4355 | | * tag value because older TIFF specs permitted Compression |
4356 | | * to be written as a SamplesPerPixel-count tag entry. |
4357 | | * Thus if we don't first figure out the correct SamplesPerPixel |
4358 | | * tag value then we may end up ignoring the Compression tag |
4359 | | * value because it has an incorrect count value (if the |
4360 | | * true value of SamplesPerPixel is not 1). |
4361 | | */ |
4362 | 859 | dp = |
4363 | 859 | TIFFReadDirectoryFindEntry(tif, dir, dircount, TIFFTAG_SAMPLESPERPIXEL); |
4364 | 859 | if (dp) |
4365 | 318 | { |
4366 | 318 | if (!TIFFFetchNormalTag(tif, dp, 0)) |
4367 | 2 | goto bad; |
4368 | 316 | dp->tdir_ignore = TRUE; |
4369 | 316 | } |
4370 | 857 | dp = TIFFReadDirectoryFindEntry(tif, dir, dircount, TIFFTAG_COMPRESSION); |
4371 | 857 | if (dp) |
4372 | 322 | { |
4373 | | /* |
4374 | | * The 5.0 spec says the Compression tag has one value, while |
4375 | | * earlier specs say it has one value per sample. Because of |
4376 | | * this, we accept the tag if one value is supplied with either |
4377 | | * count. |
4378 | | */ |
4379 | 322 | uint16_t value; |
4380 | 322 | enum TIFFReadDirEntryErr err; |
4381 | 322 | err = TIFFReadDirEntryShort(tif, dp, &value); |
4382 | 322 | if (err == TIFFReadDirEntryErrCount) |
4383 | 36 | err = TIFFReadDirEntryPersampleShort(tif, dp, &value); |
4384 | 322 | if (err != TIFFReadDirEntryErrOk) |
4385 | 24 | { |
4386 | 24 | TIFFReadDirEntryOutputErr(tif, err, module, "Compression", 0); |
4387 | 24 | goto bad; |
4388 | 24 | } |
4389 | 298 | if (!TIFFSetField(tif, TIFFTAG_COMPRESSION, value)) |
4390 | 0 | goto bad; |
4391 | 298 | dp->tdir_ignore = TRUE; |
4392 | 298 | } |
4393 | 535 | else |
4394 | 535 | { |
4395 | 535 | if (!TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE)) |
4396 | 0 | goto bad; |
4397 | 535 | } |
4398 | | /* |
4399 | | * First real pass over the directory. |
4400 | | */ |
4401 | 44.7k | for (di = 0, dp = dir; di < dircount; di++, dp++) |
4402 | 43.9k | { |
4403 | 43.9k | if (!dp->tdir_ignore) |
4404 | 20.8k | { |
4405 | 20.8k | const TIFFField *fld; |
4406 | 20.8k | TIFFReadDirectoryFindFieldInfo(tif, dp->tdir_tag, &fii); |
4407 | 20.8k | if (fii == FAILED_FII) |
4408 | 15.8k | { |
4409 | 15.8k | TIFFWarningExtR(tif, module, |
4410 | 15.8k | "Unknown field with tag %" PRIu16 " (0x%" PRIx16 |
4411 | 15.8k | ") encountered", |
4412 | 15.8k | dp->tdir_tag, dp->tdir_tag); |
4413 | | /* the following knowingly leaks the |
4414 | | anonymous field structure */ |
4415 | 15.8k | fld = _TIFFCreateAnonField( |
4416 | 15.8k | tif, dp->tdir_tag, (TIFFDataType)dp->tdir_type); |
4417 | 15.8k | if (fld == NULL || !_TIFFMergeFields(tif, fld, 1)) |
4418 | 0 | { |
4419 | 0 | TIFFWarningExtR( |
4420 | 0 | tif, module, |
4421 | 0 | "Registering anonymous field with tag %" PRIu16 |
4422 | 0 | " (0x%" PRIx16 ") failed", |
4423 | 0 | dp->tdir_tag, dp->tdir_tag); |
4424 | 0 | dp->tdir_ignore = TRUE; |
4425 | 0 | } |
4426 | 15.8k | else |
4427 | 15.8k | { |
4428 | 15.8k | TIFFReadDirectoryFindFieldInfo(tif, dp->tdir_tag, &fii); |
4429 | 15.8k | assert(fii != FAILED_FII); |
4430 | 15.8k | } |
4431 | 15.8k | } |
4432 | 20.8k | } |
4433 | 43.9k | if (!dp->tdir_ignore) |
4434 | 20.8k | { |
4435 | 20.8k | fip = tif->tif_fields[fii]; |
4436 | 20.8k | if (fip->field_bit == FIELD_IGNORE) |
4437 | 100 | dp->tdir_ignore = TRUE; |
4438 | 20.7k | else |
4439 | 20.7k | { |
4440 | 20.7k | switch (dp->tdir_tag) |
4441 | 20.7k | { |
4442 | 474 | case TIFFTAG_STRIPOFFSETS: |
4443 | 684 | case TIFFTAG_STRIPBYTECOUNTS: |
4444 | 761 | case TIFFTAG_TILEOFFSETS: |
4445 | 807 | case TIFFTAG_TILEBYTECOUNTS: |
4446 | 807 | TIFFSetFieldBit(tif, fip->field_bit); |
4447 | 807 | break; |
4448 | 692 | case TIFFTAG_IMAGEWIDTH: |
4449 | 1.25k | case TIFFTAG_IMAGELENGTH: |
4450 | 1.26k | case TIFFTAG_IMAGEDEPTH: |
4451 | 1.32k | case TIFFTAG_TILELENGTH: |
4452 | 1.40k | case TIFFTAG_TILEWIDTH: |
4453 | 1.41k | case TIFFTAG_TILEDEPTH: |
4454 | 1.58k | case TIFFTAG_PLANARCONFIG: |
4455 | 1.78k | case TIFFTAG_ROWSPERSTRIP: |
4456 | 1.83k | case TIFFTAG_EXTRASAMPLES: |
4457 | 1.83k | if (!TIFFFetchNormalTag(tif, dp, 0)) |
4458 | 31 | goto bad; |
4459 | 1.80k | dp->tdir_ignore = TRUE; |
4460 | 1.80k | break; |
4461 | 18.0k | default: |
4462 | 18.0k | if (!_TIFFCheckFieldIsValidForCodec(tif, dp->tdir_tag)) |
4463 | 212 | dp->tdir_ignore = TRUE; |
4464 | 18.0k | break; |
4465 | 20.7k | } |
4466 | 20.7k | } |
4467 | 20.8k | } |
4468 | 43.9k | } |
4469 | | /* |
4470 | | * XXX: OJPEG hack. |
4471 | | * If a) compression is OJPEG, b) planarconfig tag says it's separate, |
4472 | | * c) strip offsets/bytecounts tag are both present and |
4473 | | * d) both contain exactly one value, then we consistently find |
4474 | | * that the buggy implementation of the buggy compression scheme |
4475 | | * matches contig planarconfig best. So we 'fix-up' the tag here |
4476 | | */ |
4477 | 802 | if ((tif->tif_dir.td_compression == COMPRESSION_OJPEG) && |
4478 | 24 | (tif->tif_dir.td_planarconfig == PLANARCONFIG_SEPARATE)) |
4479 | 4 | { |
4480 | 4 | if (!_TIFFFillStriles(tif)) |
4481 | 0 | goto bad; |
4482 | 4 | dp = TIFFReadDirectoryFindEntry(tif, dir, dircount, |
4483 | 4 | TIFFTAG_STRIPOFFSETS); |
4484 | 4 | if ((dp != 0) && (dp->tdir_count == 1)) |
4485 | 2 | { |
4486 | 2 | dp = TIFFReadDirectoryFindEntry(tif, dir, dircount, |
4487 | 2 | TIFFTAG_STRIPBYTECOUNTS); |
4488 | 2 | if ((dp != 0) && (dp->tdir_count == 1)) |
4489 | 1 | { |
4490 | 1 | tif->tif_dir.td_planarconfig = PLANARCONFIG_CONTIG; |
4491 | 1 | TIFFWarningExtR(tif, module, |
4492 | 1 | "Planarconfig tag value assumed incorrect, " |
4493 | 1 | "assuming data is contig instead of chunky"); |
4494 | 1 | } |
4495 | 2 | } |
4496 | 4 | } |
4497 | | /* |
4498 | | * Allocate directory structure and setup defaults. |
4499 | | */ |
4500 | 802 | if (!TIFFFieldSet(tif, FIELD_IMAGEDIMENSIONS)) |
4501 | 8 | { |
4502 | 8 | MissingRequired(tif, "ImageLength"); |
4503 | 8 | goto bad; |
4504 | 8 | } |
4505 | | |
4506 | | /* |
4507 | | * Second pass: extract other information. |
4508 | | */ |
4509 | 43.4k | for (di = 0, dp = dir; di < dircount; di++, dp++) |
4510 | 42.7k | { |
4511 | 42.7k | if (!dp->tdir_ignore) |
4512 | 18.0k | { |
4513 | 18.0k | switch (dp->tdir_tag) |
4514 | 18.0k | { |
4515 | 3 | case TIFFTAG_MINSAMPLEVALUE: |
4516 | 16 | case TIFFTAG_MAXSAMPLEVALUE: |
4517 | 327 | case TIFFTAG_BITSPERSAMPLE: |
4518 | 327 | case TIFFTAG_DATATYPE: |
4519 | 446 | case TIFFTAG_SAMPLEFORMAT: |
4520 | | /* |
4521 | | * The MinSampleValue, MaxSampleValue, BitsPerSample |
4522 | | * DataType and SampleFormat tags are supposed to be |
4523 | | * written as one value/sample, but some vendors |
4524 | | * incorrectly write one value only -- so we accept |
4525 | | * that as well (yuck). Other vendors write correct |
4526 | | * value for NumberOfSamples, but incorrect one for |
4527 | | * BitsPerSample and friends, and we will read this |
4528 | | * too. |
4529 | | */ |
4530 | 446 | { |
4531 | 446 | uint16_t value; |
4532 | 446 | enum TIFFReadDirEntryErr err; |
4533 | 446 | err = TIFFReadDirEntryShort(tif, dp, &value); |
4534 | 446 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
4535 | 0 | goto bad; |
4536 | 446 | if (err == TIFFReadDirEntryErrCount) |
4537 | 145 | err = |
4538 | 145 | TIFFReadDirEntryPersampleShort(tif, dp, &value); |
4539 | 446 | if (err != TIFFReadDirEntryErrOk) |
4540 | 21 | { |
4541 | 21 | fip = TIFFFieldWithTag(tif, dp->tdir_tag); |
4542 | 21 | TIFFReadDirEntryOutputErr( |
4543 | 21 | tif, err, module, |
4544 | 21 | fip ? fip->field_name : "unknown tagname", 0); |
4545 | 21 | goto bad; |
4546 | 21 | } |
4547 | 425 | if (!TIFFSetField(tif, dp->tdir_tag, value)) |
4548 | 2 | goto bad; |
4549 | 423 | if (dp->tdir_tag == TIFFTAG_BITSPERSAMPLE) |
4550 | 296 | bitspersample_read = TRUE; |
4551 | 423 | } |
4552 | 0 | break; |
4553 | 17 | case TIFFTAG_SMINSAMPLEVALUE: |
4554 | 34 | case TIFFTAG_SMAXSAMPLEVALUE: |
4555 | 34 | { |
4556 | | |
4557 | 34 | double *data = NULL; |
4558 | 34 | enum TIFFReadDirEntryErr err; |
4559 | 34 | uint32_t saved_flags; |
4560 | 34 | int m; |
4561 | 34 | if (dp->tdir_count != |
4562 | 34 | (uint64_t)tif->tif_dir.td_samplesperpixel) |
4563 | 6 | err = TIFFReadDirEntryErrCount; |
4564 | 28 | else |
4565 | 28 | err = TIFFReadDirEntryDoubleArray(tif, dp, &data); |
4566 | 34 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
4567 | 1 | goto bad; |
4568 | 33 | if (err != TIFFReadDirEntryErrOk) |
4569 | 6 | { |
4570 | 6 | fip = TIFFFieldWithTag(tif, dp->tdir_tag); |
4571 | 6 | TIFFReadDirEntryOutputErr( |
4572 | 6 | tif, err, module, |
4573 | 6 | fip ? fip->field_name : "unknown tagname", 0); |
4574 | 6 | goto bad; |
4575 | 6 | } |
4576 | 27 | saved_flags = tif->tif_flags; |
4577 | 27 | tif->tif_flags |= TIFF_PERSAMPLE; |
4578 | 27 | m = TIFFSetField(tif, dp->tdir_tag, data); |
4579 | 27 | tif->tif_flags = saved_flags; |
4580 | 27 | _TIFFfreeExt(tif, data); |
4581 | 27 | if (!m) |
4582 | 0 | goto bad; |
4583 | 27 | } |
4584 | 27 | break; |
4585 | 469 | case TIFFTAG_STRIPOFFSETS: |
4586 | 545 | case TIFFTAG_TILEOFFSETS: |
4587 | 545 | { |
4588 | 545 | switch (dp->tdir_type) |
4589 | 545 | { |
4590 | 54 | case TIFF_SHORT: |
4591 | 341 | case TIFF_LONG: |
4592 | 385 | case TIFF_LONG8: |
4593 | 385 | break; |
4594 | 160 | default: |
4595 | | /* Warn except if directory typically created with |
4596 | | * TIFFDeferStrileArrayWriting() */ |
4597 | 160 | if (!(tif->tif_mode == O_RDWR && |
4598 | 0 | dp->tdir_count == 0 && dp->tdir_type == 0 && |
4599 | 0 | dp->tdir_offset.toff_long8 == 0)) |
4600 | 160 | { |
4601 | 160 | fip = TIFFFieldWithTag(tif, dp->tdir_tag); |
4602 | 160 | TIFFWarningExtR( |
4603 | 160 | tif, module, "Invalid data type for tag %s", |
4604 | 160 | fip ? fip->field_name : "unknown tagname"); |
4605 | 160 | } |
4606 | 160 | break; |
4607 | 545 | } |
4608 | 545 | _TIFFmemcpy(&(tif->tif_dir.td_stripoffset_entry), dp, |
4609 | 545 | sizeof(TIFFDirEntry)); |
4610 | 545 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
4611 | 0 | goto bad; |
4612 | 545 | } |
4613 | 545 | break; |
4614 | 545 | case TIFFTAG_STRIPBYTECOUNTS: |
4615 | 254 | case TIFFTAG_TILEBYTECOUNTS: |
4616 | 254 | { |
4617 | 254 | switch (dp->tdir_type) |
4618 | 254 | { |
4619 | 22 | case TIFF_SHORT: |
4620 | 173 | case TIFF_LONG: |
4621 | 215 | case TIFF_LONG8: |
4622 | 215 | break; |
4623 | 39 | default: |
4624 | | /* Warn except if directory typically created with |
4625 | | * TIFFDeferStrileArrayWriting() */ |
4626 | 39 | if (!(tif->tif_mode == O_RDWR && |
4627 | 0 | dp->tdir_count == 0 && dp->tdir_type == 0 && |
4628 | 0 | dp->tdir_offset.toff_long8 == 0)) |
4629 | 39 | { |
4630 | 39 | fip = TIFFFieldWithTag(tif, dp->tdir_tag); |
4631 | 39 | TIFFWarningExtR( |
4632 | 39 | tif, module, "Invalid data type for tag %s", |
4633 | 39 | fip ? fip->field_name : "unknown tagname"); |
4634 | 39 | } |
4635 | 39 | break; |
4636 | 254 | } |
4637 | 254 | _TIFFmemcpy(&(tif->tif_dir.td_stripbytecount_entry), dp, |
4638 | 254 | sizeof(TIFFDirEntry)); |
4639 | 254 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
4640 | 0 | goto bad; |
4641 | 254 | } |
4642 | 254 | break; |
4643 | 254 | case TIFFTAG_COLORMAP: |
4644 | 49 | case TIFFTAG_TRANSFERFUNCTION: |
4645 | 49 | { |
4646 | 49 | enum TIFFReadDirEntryErr err; |
4647 | 49 | uint32_t countpersample; |
4648 | 49 | uint32_t countrequired; |
4649 | 49 | uint32_t incrementpersample; |
4650 | 49 | uint16_t *value = NULL; |
4651 | | /* It would be dangerous to instantiate those tag values */ |
4652 | | /* since if td_bitspersample has not yet been read (due to |
4653 | | */ |
4654 | | /* unordered tags), it could be read afterwards with a */ |
4655 | | /* values greater than the default one (1), which may cause |
4656 | | */ |
4657 | | /* crashes in user code */ |
4658 | 49 | if (!bitspersample_read) |
4659 | 7 | { |
4660 | 7 | fip = TIFFFieldWithTag(tif, dp->tdir_tag); |
4661 | 7 | TIFFWarningExtR( |
4662 | 7 | tif, module, |
4663 | 7 | "Ignoring %s since BitsPerSample tag not found", |
4664 | 7 | fip ? fip->field_name : "unknown tagname"); |
4665 | 7 | continue; |
4666 | 7 | } |
4667 | | /* ColorMap or TransferFunction for high bit */ |
4668 | | /* depths do not make much sense and could be */ |
4669 | | /* used as a denial of service vector */ |
4670 | 42 | if (tif->tif_dir.td_bitspersample > 24) |
4671 | 5 | { |
4672 | 5 | fip = TIFFFieldWithTag(tif, dp->tdir_tag); |
4673 | 5 | TIFFWarningExtR( |
4674 | 5 | tif, module, |
4675 | 5 | "Ignoring %s because BitsPerSample=%" PRIu16 ">24", |
4676 | 5 | fip ? fip->field_name : "unknown tagname", |
4677 | 5 | tif->tif_dir.td_bitspersample); |
4678 | 5 | continue; |
4679 | 5 | } |
4680 | 37 | countpersample = (1U << tif->tif_dir.td_bitspersample); |
4681 | 37 | if ((dp->tdir_tag == TIFFTAG_TRANSFERFUNCTION) && |
4682 | 4 | (dp->tdir_count == (uint64_t)countpersample)) |
4683 | 0 | { |
4684 | 0 | countrequired = countpersample; |
4685 | 0 | incrementpersample = 0; |
4686 | 0 | } |
4687 | 37 | else |
4688 | 37 | { |
4689 | 37 | countrequired = 3 * countpersample; |
4690 | 37 | incrementpersample = countpersample; |
4691 | 37 | } |
4692 | 37 | if (dp->tdir_count != (uint64_t)countrequired) |
4693 | 16 | err = TIFFReadDirEntryErrCount; |
4694 | 21 | else |
4695 | 21 | err = TIFFReadDirEntryShortArray(tif, dp, &value); |
4696 | 37 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
4697 | 0 | goto bad; |
4698 | 37 | if (err != TIFFReadDirEntryErrOk) |
4699 | 22 | { |
4700 | 22 | fip = TIFFFieldWithTag(tif, dp->tdir_tag); |
4701 | 22 | TIFFReadDirEntryOutputErr( |
4702 | 22 | tif, err, module, |
4703 | 22 | fip ? fip->field_name : "unknown tagname", 1); |
4704 | 22 | } |
4705 | 15 | else |
4706 | 15 | { |
4707 | 15 | TIFFSetField(tif, dp->tdir_tag, value, |
4708 | 15 | value + incrementpersample, |
4709 | 15 | value + 2 * incrementpersample); |
4710 | 15 | _TIFFfreeExt(tif, value); |
4711 | 15 | } |
4712 | 37 | } |
4713 | 0 | break; |
4714 | | /* BEGIN REV 4.0 COMPATIBILITY */ |
4715 | 0 | case TIFFTAG_OSUBFILETYPE: |
4716 | 0 | { |
4717 | 0 | uint16_t valueo; |
4718 | 0 | uint32_t value; |
4719 | 0 | if (TIFFReadDirEntryShort(tif, dp, &valueo) == |
4720 | 0 | TIFFReadDirEntryErrOk) |
4721 | 0 | { |
4722 | 0 | switch (valueo) |
4723 | 0 | { |
4724 | 0 | case OFILETYPE_REDUCEDIMAGE: |
4725 | 0 | value = FILETYPE_REDUCEDIMAGE; |
4726 | 0 | break; |
4727 | 0 | case OFILETYPE_PAGE: |
4728 | 0 | value = FILETYPE_PAGE; |
4729 | 0 | break; |
4730 | 0 | default: |
4731 | 0 | value = 0; |
4732 | 0 | break; |
4733 | 0 | } |
4734 | 0 | if (value != 0) |
4735 | 0 | TIFFSetField(tif, TIFFTAG_SUBFILETYPE, value); |
4736 | 0 | } |
4737 | 0 | } |
4738 | 0 | break; |
4739 | | /* END REV 4.0 COMPATIBILITY */ |
4740 | | #if 0 |
4741 | | case TIFFTAG_EP_BATTERYLEVEL: |
4742 | | /* TIFFTAG_EP_BATTERYLEVEL can be RATIONAL or ASCII. |
4743 | | * LibTiff defines it as ASCII and converts RATIONAL to an |
4744 | | * ASCII string. */ |
4745 | | switch (dp->tdir_type) |
4746 | | { |
4747 | | case TIFF_RATIONAL: |
4748 | | { |
4749 | | /* Read rational and convert to ASCII*/ |
4750 | | enum TIFFReadDirEntryErr err; |
4751 | | TIFFRational_t rValue; |
4752 | | err = TIFFReadDirEntryCheckedRationalDirect( |
4753 | | tif, dp, &rValue); |
4754 | | if (err != TIFFReadDirEntryErrOk) |
4755 | | { |
4756 | | fip = TIFFFieldWithTag(tif, dp->tdir_tag); |
4757 | | TIFFReadDirEntryOutputErr( |
4758 | | tif, err, module, |
4759 | | fip ? fip->field_name : "unknown tagname", |
4760 | | 1); |
4761 | | } |
4762 | | else |
4763 | | { |
4764 | | char szAux[32]; |
4765 | | snprintf(szAux, sizeof(szAux) - 1, "%d/%d", |
4766 | | rValue.uNum, rValue.uDenom); |
4767 | | TIFFSetField(tif, dp->tdir_tag, szAux); |
4768 | | } |
4769 | | } |
4770 | | break; |
4771 | | case TIFF_ASCII: |
4772 | | (void)TIFFFetchNormalTag(tif, dp, TRUE); |
4773 | | break; |
4774 | | default: |
4775 | | fip = TIFFFieldWithTag(tif, dp->tdir_tag); |
4776 | | TIFFWarningExtR(tif, module, |
4777 | | "Invalid data type for tag %s. " |
4778 | | "ASCII or RATIONAL expected", |
4779 | | fip ? fip->field_name |
4780 | | : "unknown tagname"); |
4781 | | break; |
4782 | | } |
4783 | | break; |
4784 | | #endif |
4785 | 16.7k | default: |
4786 | 16.7k | (void)TIFFFetchNormalTag(tif, dp, TRUE); |
4787 | 16.7k | break; |
4788 | 18.0k | } /* -- switch (dp->tdir_tag) -- */ |
4789 | 18.0k | } /* -- if (!dp->tdir_ignore) */ |
4790 | 42.7k | } /* -- for-loop -- */ |
4791 | | |
4792 | | /* Evaluate final IFD data size. */ |
4793 | 764 | CalcFinalIFDdatasizeReading(tif, dircount); |
4794 | | |
4795 | | /* |
4796 | | * OJPEG hack: |
4797 | | * - If a) compression is OJPEG, and b) photometric tag is missing, |
4798 | | * then we consistently find that photometric should be YCbCr |
4799 | | * - If a) compression is OJPEG, and b) photometric tag says it's RGB, |
4800 | | * then we consistently find that the buggy implementation of the |
4801 | | * buggy compression scheme matches photometric YCbCr instead. |
4802 | | * - If a) compression is OJPEG, and b) bitspersample tag is missing, |
4803 | | * then we consistently find bitspersample should be 8. |
4804 | | * - If a) compression is OJPEG, b) samplesperpixel tag is missing, |
4805 | | * and c) photometric is RGB or YCbCr, then we consistently find |
4806 | | * samplesperpixel should be 3 |
4807 | | * - If a) compression is OJPEG, b) samplesperpixel tag is missing, |
4808 | | * and c) photometric is MINISWHITE or MINISBLACK, then we consistently |
4809 | | * find samplesperpixel should be 3 |
4810 | | */ |
4811 | 764 | if (tif->tif_dir.td_compression == COMPRESSION_OJPEG) |
4812 | 22 | { |
4813 | 22 | if (!TIFFFieldSet(tif, FIELD_PHOTOMETRIC)) |
4814 | 16 | { |
4815 | 16 | TIFFWarningExtR( |
4816 | 16 | tif, module, |
4817 | 16 | "Photometric tag is missing, assuming data is YCbCr"); |
4818 | 16 | if (!TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_YCBCR)) |
4819 | 0 | goto bad; |
4820 | 16 | } |
4821 | 6 | else if (tif->tif_dir.td_photometric == PHOTOMETRIC_RGB) |
4822 | 0 | { |
4823 | 0 | tif->tif_dir.td_photometric = PHOTOMETRIC_YCBCR; |
4824 | 0 | TIFFWarningExtR(tif, module, |
4825 | 0 | "Photometric tag value assumed incorrect, " |
4826 | 0 | "assuming data is YCbCr instead of RGB"); |
4827 | 0 | } |
4828 | 22 | if (!TIFFFieldSet(tif, FIELD_BITSPERSAMPLE)) |
4829 | 15 | { |
4830 | 15 | TIFFWarningExtR( |
4831 | 15 | tif, module, |
4832 | 15 | "BitsPerSample tag is missing, assuming 8 bits per sample"); |
4833 | 15 | if (!TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8)) |
4834 | 0 | goto bad; |
4835 | 15 | } |
4836 | 22 | if (!TIFFFieldSet(tif, FIELD_SAMPLESPERPIXEL)) |
4837 | 18 | { |
4838 | 18 | if (tif->tif_dir.td_photometric == PHOTOMETRIC_RGB) |
4839 | 0 | { |
4840 | 0 | TIFFWarningExtR(tif, module, |
4841 | 0 | "SamplesPerPixel tag is missing, " |
4842 | 0 | "assuming correct SamplesPerPixel value is 3"); |
4843 | 0 | if (!TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3)) |
4844 | 0 | goto bad; |
4845 | 0 | } |
4846 | 18 | if (tif->tif_dir.td_photometric == PHOTOMETRIC_YCBCR) |
4847 | 16 | { |
4848 | 16 | TIFFWarningExtR(tif, module, |
4849 | 16 | "SamplesPerPixel tag is missing, " |
4850 | 16 | "applying correct SamplesPerPixel value of 3"); |
4851 | 16 | if (!TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3)) |
4852 | 0 | goto bad; |
4853 | 16 | } |
4854 | 2 | else if ((tif->tif_dir.td_photometric == PHOTOMETRIC_MINISWHITE) || |
4855 | 2 | (tif->tif_dir.td_photometric == PHOTOMETRIC_MINISBLACK)) |
4856 | 1 | { |
4857 | | /* |
4858 | | * SamplesPerPixel tag is missing, but is not required |
4859 | | * by spec. Assume correct SamplesPerPixel value of 1. |
4860 | | */ |
4861 | 1 | if (!TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1)) |
4862 | 0 | goto bad; |
4863 | 1 | } |
4864 | 18 | } |
4865 | 22 | } |
4866 | | |
4867 | | /* |
4868 | | * Setup appropriate structures (by strip or by tile) |
4869 | | * We do that only after the above OJPEG hack which alters SamplesPerPixel |
4870 | | * and thus influences the number of strips in the separate planarconfig. |
4871 | | */ |
4872 | 764 | if (!TIFFFieldSet(tif, FIELD_TILEDIMENSIONS)) |
4873 | 675 | { |
4874 | 675 | tif->tif_dir.td_nstrips = TIFFNumberOfStrips(tif); |
4875 | 675 | tif->tif_dir.td_tilewidth = tif->tif_dir.td_imagewidth; |
4876 | 675 | tif->tif_dir.td_tilelength = tif->tif_dir.td_rowsperstrip; |
4877 | 675 | tif->tif_dir.td_tiledepth = tif->tif_dir.td_imagedepth; |
4878 | 675 | tif->tif_flags &= ~TIFF_ISTILED; |
4879 | 675 | } |
4880 | 89 | else |
4881 | 89 | { |
4882 | 89 | tif->tif_dir.td_nstrips = TIFFNumberOfTiles(tif); |
4883 | 89 | tif->tif_flags |= TIFF_ISTILED; |
4884 | 89 | } |
4885 | 764 | if (!tif->tif_dir.td_nstrips) |
4886 | 22 | { |
4887 | 22 | TIFFErrorExtR(tif, module, "Cannot handle zero number of %s", |
4888 | 22 | isTiled(tif) ? "tiles" : "strips"); |
4889 | 22 | goto bad; |
4890 | 22 | } |
4891 | 742 | tif->tif_dir.td_stripsperimage = tif->tif_dir.td_nstrips; |
4892 | 742 | if (tif->tif_dir.td_planarconfig == PLANARCONFIG_SEPARATE) |
4893 | 35 | tif->tif_dir.td_stripsperimage /= tif->tif_dir.td_samplesperpixel; |
4894 | 742 | if (!TIFFFieldSet(tif, FIELD_STRIPOFFSETS)) |
4895 | 219 | { |
4896 | | #ifdef OJPEG_SUPPORT |
4897 | | if ((tif->tif_dir.td_compression == COMPRESSION_OJPEG) && |
4898 | | (isTiled(tif) == 0) && (tif->tif_dir.td_nstrips == 1)) |
4899 | | { |
4900 | | /* |
4901 | | * XXX: OJPEG hack. |
4902 | | * If a) compression is OJPEG, b) it's not a tiled TIFF, |
4903 | | * and c) the number of strips is 1, |
4904 | | * then we tolerate the absence of stripoffsets tag, |
4905 | | * because, presumably, all required data is in the |
4906 | | * JpegInterchangeFormat stream. |
4907 | | */ |
4908 | | TIFFSetFieldBit(tif, FIELD_STRIPOFFSETS); |
4909 | | } |
4910 | | else |
4911 | | #endif |
4912 | 219 | { |
4913 | 219 | MissingRequired(tif, isTiled(tif) ? "TileOffsets" : "StripOffsets"); |
4914 | 219 | goto bad; |
4915 | 219 | } |
4916 | 219 | } |
4917 | | |
4918 | 523 | if (tif->tif_mode == O_RDWR && |
4919 | 0 | tif->tif_dir.td_stripoffset_entry.tdir_tag != 0 && |
4920 | 0 | tif->tif_dir.td_stripoffset_entry.tdir_count == 0 && |
4921 | 0 | tif->tif_dir.td_stripoffset_entry.tdir_type == 0 && |
4922 | 0 | tif->tif_dir.td_stripoffset_entry.tdir_offset.toff_long8 == 0 && |
4923 | 0 | tif->tif_dir.td_stripbytecount_entry.tdir_tag != 0 && |
4924 | 0 | tif->tif_dir.td_stripbytecount_entry.tdir_count == 0 && |
4925 | 0 | tif->tif_dir.td_stripbytecount_entry.tdir_type == 0 && |
4926 | 0 | tif->tif_dir.td_stripbytecount_entry.tdir_offset.toff_long8 == 0) |
4927 | 0 | { |
4928 | | /* Directory typically created with TIFFDeferStrileArrayWriting() */ |
4929 | 0 | TIFFSetupStrips(tif); |
4930 | 0 | } |
4931 | 523 | else if (!(tif->tif_flags & TIFF_DEFERSTRILELOAD)) |
4932 | 523 | { |
4933 | 523 | if (tif->tif_dir.td_stripoffset_entry.tdir_tag != 0) |
4934 | 523 | { |
4935 | 523 | if (!TIFFFetchStripThing(tif, &(tif->tif_dir.td_stripoffset_entry), |
4936 | 523 | tif->tif_dir.td_nstrips, |
4937 | 523 | &tif->tif_dir.td_stripoffset_p)) |
4938 | 101 | { |
4939 | 101 | goto bad; |
4940 | 101 | } |
4941 | 523 | } |
4942 | 422 | if (tif->tif_dir.td_stripbytecount_entry.tdir_tag != 0) |
4943 | 212 | { |
4944 | 212 | if (!TIFFFetchStripThing( |
4945 | 212 | tif, &(tif->tif_dir.td_stripbytecount_entry), |
4946 | 212 | tif->tif_dir.td_nstrips, &tif->tif_dir.td_stripbytecount_p)) |
4947 | 15 | { |
4948 | 15 | goto bad; |
4949 | 15 | } |
4950 | 212 | } |
4951 | 422 | } |
4952 | | |
4953 | | /* |
4954 | | * Make sure all non-color channels are extrasamples. |
4955 | | * If it's not the case, define them as such. |
4956 | | */ |
4957 | 407 | color_channels = _TIFFGetMaxColorChannels(tif->tif_dir.td_photometric); |
4958 | 407 | if (color_channels && |
4959 | 387 | tif->tif_dir.td_samplesperpixel - tif->tif_dir.td_extrasamples > |
4960 | 387 | color_channels) |
4961 | 51 | { |
4962 | 51 | uint16_t old_extrasamples; |
4963 | 51 | uint16_t *new_sampleinfo; |
4964 | | |
4965 | 51 | TIFFWarningExtR( |
4966 | 51 | tif, module, |
4967 | 51 | "Sum of Photometric type-related " |
4968 | 51 | "color channels and ExtraSamples doesn't match SamplesPerPixel. " |
4969 | 51 | "Defining non-color channels as ExtraSamples."); |
4970 | | |
4971 | 51 | old_extrasamples = tif->tif_dir.td_extrasamples; |
4972 | 51 | tif->tif_dir.td_extrasamples = |
4973 | 51 | (uint16_t)(tif->tif_dir.td_samplesperpixel - color_channels); |
4974 | | |
4975 | | // sampleinfo should contain information relative to these new extra |
4976 | | // samples |
4977 | 51 | new_sampleinfo = (uint16_t *)_TIFFcallocExt( |
4978 | 51 | tif, tif->tif_dir.td_extrasamples, sizeof(uint16_t)); |
4979 | 51 | if (!new_sampleinfo) |
4980 | 0 | { |
4981 | 0 | TIFFErrorExtR(tif, module, |
4982 | 0 | "Failed to allocate memory for " |
4983 | 0 | "temporary new sampleinfo array " |
4984 | 0 | "(%" PRIu16 " 16 bit elements)", |
4985 | 0 | tif->tif_dir.td_extrasamples); |
4986 | 0 | goto bad; |
4987 | 0 | } |
4988 | | |
4989 | 51 | if (old_extrasamples > 0) |
4990 | 6 | memcpy(new_sampleinfo, tif->tif_dir.td_sampleinfo, |
4991 | 6 | old_extrasamples * sizeof(uint16_t)); |
4992 | 51 | _TIFFsetShortArrayExt(tif, &tif->tif_dir.td_sampleinfo, new_sampleinfo, |
4993 | 51 | tif->tif_dir.td_extrasamples); |
4994 | 51 | _TIFFfreeExt(tif, new_sampleinfo); |
4995 | 51 | } |
4996 | | |
4997 | | /* |
4998 | | * Verify Palette image has a Colormap. |
4999 | | */ |
5000 | 407 | if (tif->tif_dir.td_photometric == PHOTOMETRIC_PALETTE && |
5001 | 26 | !TIFFFieldSet(tif, FIELD_COLORMAP)) |
5002 | 13 | { |
5003 | 13 | if (tif->tif_dir.td_bitspersample >= 8 && |
5004 | 9 | tif->tif_dir.td_samplesperpixel == 3) |
5005 | 5 | tif->tif_dir.td_photometric = PHOTOMETRIC_RGB; |
5006 | 8 | else if (tif->tif_dir.td_bitspersample >= 8) |
5007 | 4 | tif->tif_dir.td_photometric = PHOTOMETRIC_MINISBLACK; |
5008 | 4 | else |
5009 | 4 | { |
5010 | 4 | MissingRequired(tif, "Colormap"); |
5011 | 4 | goto bad; |
5012 | 4 | } |
5013 | 13 | } |
5014 | | /* |
5015 | | * OJPEG hack: |
5016 | | * We do no further messing with strip/tile offsets/bytecounts in OJPEG |
5017 | | * TIFFs |
5018 | | */ |
5019 | 403 | if (tif->tif_dir.td_compression != COMPRESSION_OJPEG) |
5020 | 396 | { |
5021 | | /* |
5022 | | * Attempt to deal with a missing StripByteCounts tag. |
5023 | | */ |
5024 | 396 | if (!TIFFFieldSet(tif, FIELD_STRIPBYTECOUNTS)) |
5025 | 202 | { |
5026 | | /* |
5027 | | * Some manufacturers violate the spec by not giving |
5028 | | * the size of the strips. In this case, assume there |
5029 | | * is one uncompressed strip of data. |
5030 | | */ |
5031 | 202 | if ((tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG && |
5032 | 188 | tif->tif_dir.td_nstrips > 1) || |
5033 | 201 | (tif->tif_dir.td_planarconfig == PLANARCONFIG_SEPARATE && |
5034 | 14 | tif->tif_dir.td_nstrips != |
5035 | 14 | (uint32_t)tif->tif_dir.td_samplesperpixel)) |
5036 | 1 | { |
5037 | 1 | MissingRequired(tif, "StripByteCounts"); |
5038 | 1 | goto bad; |
5039 | 1 | } |
5040 | 201 | TIFFWarningExtR( |
5041 | 201 | tif, module, |
5042 | 201 | "TIFF directory is missing required " |
5043 | 201 | "\"StripByteCounts\" field, calculating from imagelength"); |
5044 | 201 | if (EstimateStripByteCounts(tif, dir, dircount) < 0) |
5045 | 5 | goto bad; |
5046 | 201 | } |
5047 | 194 | else if (tif->tif_dir.td_nstrips == 1 && |
5048 | 102 | !(tif->tif_flags & TIFF_ISTILED) && ByteCountLooksBad(tif)) |
5049 | 22 | { |
5050 | | /* |
5051 | | * XXX: Plexus (and others) sometimes give a value of |
5052 | | * zero for a tag when they don't know what the |
5053 | | * correct value is! Try and handle the simple case |
5054 | | * of estimating the size of a one strip image. |
5055 | | */ |
5056 | 22 | TIFFWarningExtR(tif, module, |
5057 | 22 | "Bogus \"StripByteCounts\" field, ignoring and " |
5058 | 22 | "calculating from imagelength"); |
5059 | 22 | if (EstimateStripByteCounts(tif, dir, dircount) < 0) |
5060 | 2 | goto bad; |
5061 | 22 | } |
5062 | 172 | else if (!(tif->tif_flags & TIFF_DEFERSTRILELOAD) && |
5063 | 172 | tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG && |
5064 | 164 | tif->tif_dir.td_nstrips > 2 && |
5065 | 69 | tif->tif_dir.td_compression == COMPRESSION_NONE && |
5066 | 33 | TIFFGetStrileByteCount(tif, 0) != |
5067 | 33 | TIFFGetStrileByteCount(tif, 1) && |
5068 | 27 | TIFFGetStrileByteCount(tif, 0) != 0 && |
5069 | 26 | TIFFGetStrileByteCount(tif, 1) != 0) |
5070 | 24 | { |
5071 | | /* |
5072 | | * XXX: Some vendors fill StripByteCount array with |
5073 | | * absolutely wrong values (it can be equal to |
5074 | | * StripOffset array, for example). Catch this case |
5075 | | * here. |
5076 | | * |
5077 | | * We avoid this check if deferring strile loading |
5078 | | * as it would always force us to load the strip/tile |
5079 | | * information. |
5080 | | */ |
5081 | 24 | TIFFWarningExtR(tif, module, |
5082 | 24 | "Wrong \"StripByteCounts\" field, ignoring and " |
5083 | 24 | "calculating from imagelength"); |
5084 | 24 | if (EstimateStripByteCounts(tif, dir, dircount) < 0) |
5085 | 0 | goto bad; |
5086 | 24 | } |
5087 | 396 | } |
5088 | 395 | if (dir) |
5089 | 395 | { |
5090 | 395 | _TIFFfreeExt(tif, dir); |
5091 | 395 | dir = NULL; |
5092 | 395 | } |
5093 | 395 | if (!TIFFFieldSet(tif, FIELD_MAXSAMPLEVALUE)) |
5094 | 385 | { |
5095 | 385 | if (tif->tif_dir.td_bitspersample >= 16) |
5096 | 54 | tif->tif_dir.td_maxsamplevalue = 0xFFFF; |
5097 | 331 | else |
5098 | 331 | tif->tif_dir.td_maxsamplevalue = |
5099 | 331 | (uint16_t)((1L << tif->tif_dir.td_bitspersample) - 1); |
5100 | 385 | } |
5101 | | |
5102 | | #ifdef STRIPBYTECOUNTSORTED_UNUSED |
5103 | | /* |
5104 | | * XXX: We can optimize checking for the strip bounds using the sorted |
5105 | | * bytecounts array. See also comments for TIFFAppendToStrip() |
5106 | | * function in tif_write.c. |
5107 | | */ |
5108 | | if (!(tif->tif_flags & TIFF_DEFERSTRILELOAD) && tif->tif_dir.td_nstrips > 1) |
5109 | | { |
5110 | | uint32_t strip; |
5111 | | |
5112 | | tif->tif_dir.td_stripbytecountsorted = 1; |
5113 | | for (strip = 1; strip < tif->tif_dir.td_nstrips; strip++) |
5114 | | { |
5115 | | if (TIFFGetStrileOffset(tif, strip - 1) > |
5116 | | TIFFGetStrileOffset(tif, strip)) |
5117 | | { |
5118 | | tif->tif_dir.td_stripbytecountsorted = 0; |
5119 | | break; |
5120 | | } |
5121 | | } |
5122 | | } |
5123 | | #endif |
5124 | | |
5125 | | /* |
5126 | | * An opportunity for compression mode dependent tag fixup |
5127 | | */ |
5128 | 395 | (*tif->tif_fixuptags)(tif); |
5129 | | |
5130 | | /* |
5131 | | * Some manufacturers make life difficult by writing |
5132 | | * large amounts of uncompressed data as a single strip. |
5133 | | * This is contrary to the recommendations of the spec. |
5134 | | * The following makes an attempt at breaking such images |
5135 | | * into strips closer to the recommended 8k bytes. A |
5136 | | * side effect, however, is that the RowsPerStrip tag |
5137 | | * value may be changed. |
5138 | | */ |
5139 | 395 | if ((tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG) && |
5140 | 372 | (tif->tif_dir.td_nstrips == 1) && |
5141 | 288 | (tif->tif_dir.td_compression == COMPRESSION_NONE) && |
5142 | 163 | ((tif->tif_flags & (TIFF_STRIPCHOP | TIFF_ISTILED)) == TIFF_STRIPCHOP)) |
5143 | 156 | { |
5144 | 156 | ChopUpSingleUncompressedStrip(tif); |
5145 | 156 | } |
5146 | | |
5147 | | /* There are also uncompressed striped files with strips larger than */ |
5148 | | /* 2 GB, which make them unfriendly with a lot of code. If possible, */ |
5149 | | /* try to expose smaller "virtual" strips. */ |
5150 | 395 | if (tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG && |
5151 | 372 | tif->tif_dir.td_compression == COMPRESSION_NONE && |
5152 | 201 | (tif->tif_flags & (TIFF_STRIPCHOP | TIFF_ISTILED)) == TIFF_STRIPCHOP && |
5153 | 178 | TIFFStripSize64(tif) > 0x7FFFFFFFUL) |
5154 | 35 | { |
5155 | 35 | TryChopUpUncompressedBigTiff(tif); |
5156 | 35 | } |
5157 | | |
5158 | | /* |
5159 | | * Clear the dirty directory flag. |
5160 | | */ |
5161 | 395 | tif->tif_flags &= ~TIFF_DIRTYDIRECT; |
5162 | 395 | tif->tif_flags &= ~TIFF_DIRTYSTRIP; |
5163 | | |
5164 | | /* |
5165 | | * Reinitialize i/o since we are starting on a new directory. |
5166 | | */ |
5167 | 395 | tif->tif_row = (uint32_t)-1; |
5168 | 395 | tif->tif_curstrip = (uint32_t)-1; |
5169 | 395 | tif->tif_col = (uint32_t)-1; |
5170 | 395 | tif->tif_curtile = (uint32_t)-1; |
5171 | 395 | tif->tif_tilesize = (tmsize_t)-1; |
5172 | | |
5173 | 395 | tif->tif_scanlinesize = TIFFScanlineSize(tif); |
5174 | 395 | if (!tif->tif_scanlinesize) |
5175 | 21 | { |
5176 | 21 | TIFFErrorExtR(tif, module, "Cannot handle zero scanline size"); |
5177 | 21 | return (0); |
5178 | 21 | } |
5179 | | |
5180 | 374 | if (isTiled(tif)) |
5181 | 62 | { |
5182 | 62 | tif->tif_tilesize = TIFFTileSize(tif); |
5183 | 62 | if (!tif->tif_tilesize) |
5184 | 2 | { |
5185 | 2 | TIFFErrorExtR(tif, module, "Cannot handle zero tile size"); |
5186 | 2 | return (0); |
5187 | 2 | } |
5188 | 62 | } |
5189 | 312 | else |
5190 | 312 | { |
5191 | 312 | if (!TIFFStripSize(tif)) |
5192 | 37 | { |
5193 | 37 | TIFFErrorExtR(tif, module, "Cannot handle zero strip size"); |
5194 | 37 | return (0); |
5195 | 37 | } |
5196 | 312 | } |
5197 | 335 | return (1); |
5198 | 464 | bad: |
5199 | 464 | if (dir) |
5200 | 464 | _TIFFfreeExt(tif, dir); |
5201 | 464 | return (0); |
5202 | 374 | } /*-- TIFFReadDirectory() --*/ |
5203 | | |
5204 | | static void TIFFReadDirectoryCheckOrder(TIFF *tif, TIFFDirEntry *dir, |
5205 | | uint16_t dircount) |
5206 | 859 | { |
5207 | 859 | static const char module[] = "TIFFReadDirectoryCheckOrder"; |
5208 | 859 | uint32_t m; |
5209 | 859 | uint16_t n; |
5210 | 859 | TIFFDirEntry *o; |
5211 | 859 | m = 0; |
5212 | 4.02k | for (n = 0, o = dir; n < dircount; n++, o++) |
5213 | 3.85k | { |
5214 | 3.85k | if (o->tdir_tag < m) |
5215 | 686 | { |
5216 | 686 | TIFFWarningExtR(tif, module, |
5217 | 686 | "Invalid TIFF directory; tags are not sorted in " |
5218 | 686 | "ascending order"); |
5219 | 686 | break; |
5220 | 686 | } |
5221 | 3.17k | m = o->tdir_tag + 1; |
5222 | 3.17k | } |
5223 | 859 | } |
5224 | | |
5225 | | static TIFFDirEntry *TIFFReadDirectoryFindEntry(TIFF *tif, TIFFDirEntry *dir, |
5226 | | uint16_t dircount, |
5227 | | uint16_t tagid) |
5228 | 1.72k | { |
5229 | 1.72k | TIFFDirEntry *m; |
5230 | 1.72k | uint16_t n; |
5231 | 1.72k | (void)tif; |
5232 | 44.4k | for (m = dir, n = 0; n < dircount; m++, n++) |
5233 | 43.3k | { |
5234 | 43.3k | if (m->tdir_tag == tagid) |
5235 | 645 | return (m); |
5236 | 43.3k | } |
5237 | 1.07k | return (0); |
5238 | 1.72k | } |
5239 | | |
5240 | | static void TIFFReadDirectoryFindFieldInfo(TIFF *tif, uint16_t tagid, |
5241 | | uint32_t *fii) |
5242 | 55.6k | { |
5243 | 55.6k | int32_t ma, mb, mc; |
5244 | 55.6k | ma = -1; |
5245 | 55.6k | mc = (int32_t)tif->tif_nfields; |
5246 | 432k | while (1) |
5247 | 432k | { |
5248 | 432k | if (ma + 1 == mc) |
5249 | 15.8k | { |
5250 | 15.8k | *fii = FAILED_FII; |
5251 | 15.8k | return; |
5252 | 15.8k | } |
5253 | 416k | mb = (ma + mc) / 2; |
5254 | 416k | if (tif->tif_fields[mb]->field_tag == (uint32_t)tagid) |
5255 | 39.7k | break; |
5256 | 376k | if (tif->tif_fields[mb]->field_tag < (uint32_t)tagid) |
5257 | 186k | ma = mb; |
5258 | 190k | else |
5259 | 190k | mc = mb; |
5260 | 376k | } |
5261 | 39.7k | while (1) |
5262 | 39.7k | { |
5263 | 39.7k | if (mb == 0) |
5264 | 955 | break; |
5265 | 38.7k | if (tif->tif_fields[mb - 1]->field_tag != (uint32_t)tagid) |
5266 | 38.7k | break; |
5267 | 0 | mb--; |
5268 | 0 | } |
5269 | 39.7k | *fii = mb; |
5270 | 39.7k | } |
5271 | | |
5272 | | /* |
5273 | | * Read custom directory from the arbitrary offset. |
5274 | | * The code is very similar to TIFFReadDirectory(). |
5275 | | */ |
5276 | | int TIFFReadCustomDirectory(TIFF *tif, toff_t diroff, |
5277 | | const TIFFFieldArray *infoarray) |
5278 | 0 | { |
5279 | 0 | static const char module[] = "TIFFReadCustomDirectory"; |
5280 | 0 | TIFFDirEntry *dir; |
5281 | 0 | uint16_t dircount; |
5282 | 0 | TIFFDirEntry *dp; |
5283 | 0 | uint16_t di; |
5284 | 0 | const TIFFField *fip; |
5285 | 0 | uint32_t fii; |
5286 | |
|
5287 | 0 | dircount = TIFFFetchDirectory(tif, diroff, &dir, NULL); |
5288 | 0 | if (!dircount) |
5289 | 0 | { |
5290 | 0 | TIFFErrorExtR(tif, module, |
5291 | 0 | "Failed to read custom directory at offset %" PRIu64, |
5292 | 0 | diroff); |
5293 | 0 | return 0; |
5294 | 0 | } |
5295 | 0 | TIFFReadDirectoryCheckOrder(tif, dir, dircount); |
5296 | | |
5297 | | /* |
5298 | | * Mark duplicates of any tag to be ignored (bugzilla 1994) |
5299 | | * to avoid certain pathological problems. |
5300 | | */ |
5301 | 0 | { |
5302 | 0 | TIFFDirEntry *ma; |
5303 | 0 | uint16_t mb; |
5304 | 0 | for (ma = dir, mb = 0; mb < dircount; ma++, mb++) |
5305 | 0 | { |
5306 | 0 | TIFFDirEntry *na; |
5307 | 0 | uint16_t nb; |
5308 | 0 | for (na = ma + 1, nb = mb + 1; nb < dircount; na++, nb++) |
5309 | 0 | { |
5310 | 0 | if (ma->tdir_tag == na->tdir_tag) |
5311 | 0 | { |
5312 | 0 | na->tdir_ignore = TRUE; |
5313 | 0 | } |
5314 | 0 | } |
5315 | 0 | } |
5316 | 0 | } |
5317 | | |
5318 | | /* Free any old stuff and reinit. */ |
5319 | 0 | (*tif->tif_cleanup)(tif); /* cleanup any previous compression state */ |
5320 | 0 | TIFFFreeDirectory(tif); |
5321 | | /* Even if custom directories do not need the default settings of a standard |
5322 | | * IFD, the pointer to the TIFFSetField() and TIFFGetField() (i.e. |
5323 | | * tif->tif_tagmethods.vsetfield and tif->tif_tagmethods.vgetfield) need to |
5324 | | * be initialized, which is done in TIFFDefaultDirectory(). |
5325 | | * After that, the field array for the custom tags needs to be setup again. |
5326 | | */ |
5327 | 0 | TIFFDefaultDirectory(tif); |
5328 | 0 | _TIFFSetupFields(tif, infoarray); |
5329 | | |
5330 | | /* Allocate arrays for offset values outside IFD entry for IFD data size |
5331 | | * checking. Note: Counter are reset within TIFFFreeDirectory(). */ |
5332 | 0 | tif->tif_dir.td_dirdatasize_offsets = |
5333 | 0 | (TIFFEntryOffsetAndLength *)_TIFFmallocExt( |
5334 | 0 | tif, dircount * sizeof(TIFFEntryOffsetAndLength)); |
5335 | 0 | if (tif->tif_dir.td_dirdatasize_offsets == NULL) |
5336 | 0 | { |
5337 | 0 | TIFFErrorExtR( |
5338 | 0 | tif, module, |
5339 | 0 | "Failed to allocate memory for counting IFD data size at reading"); |
5340 | 0 | if (dir) |
5341 | 0 | _TIFFfreeExt(tif, dir); |
5342 | 0 | return 0; |
5343 | 0 | } |
5344 | | |
5345 | 0 | for (di = 0, dp = dir; di < dircount; di++, dp++) |
5346 | 0 | { |
5347 | 0 | TIFFReadDirectoryFindFieldInfo(tif, dp->tdir_tag, &fii); |
5348 | 0 | if (fii == FAILED_FII) |
5349 | 0 | { |
5350 | 0 | const TIFFField *fld; |
5351 | 0 | TIFFWarningExtR(tif, module, |
5352 | 0 | "Unknown field with tag %" PRIu16 " (0x%" PRIx16 |
5353 | 0 | ") encountered", |
5354 | 0 | dp->tdir_tag, dp->tdir_tag); |
5355 | 0 | fld = _TIFFCreateAnonField( |
5356 | 0 | tif, dp->tdir_tag, (TIFFDataType)dp->tdir_type); |
5357 | 0 | if (fld == NULL || !_TIFFMergeFields(tif, fld, 1)) |
5358 | 0 | { |
5359 | 0 | TIFFWarningExtR(tif, module, |
5360 | 0 | "Registering anonymous field with tag %" PRIu16 |
5361 | 0 | " (0x%" PRIx16 ") failed", |
5362 | 0 | dp->tdir_tag, dp->tdir_tag); |
5363 | 0 | dp->tdir_ignore = TRUE; |
5364 | 0 | } |
5365 | 0 | else |
5366 | 0 | { |
5367 | 0 | TIFFReadDirectoryFindFieldInfo(tif, dp->tdir_tag, &fii); |
5368 | 0 | assert(fii != FAILED_FII); |
5369 | 0 | } |
5370 | 0 | } |
5371 | 0 | if (!dp->tdir_ignore) |
5372 | 0 | { |
5373 | 0 | fip = tif->tif_fields[fii]; |
5374 | 0 | if (fip->field_bit == FIELD_IGNORE) |
5375 | 0 | dp->tdir_ignore = TRUE; |
5376 | 0 | else |
5377 | 0 | { |
5378 | | /* check data type */ |
5379 | 0 | while ((fip->field_type != TIFF_ANY) && |
5380 | 0 | (fip->field_type != dp->tdir_type)) |
5381 | 0 | { |
5382 | 0 | fii++; |
5383 | 0 | if ((fii == tif->tif_nfields) || |
5384 | 0 | (tif->tif_fields[fii]->field_tag != |
5385 | 0 | (uint32_t)dp->tdir_tag)) |
5386 | 0 | { |
5387 | 0 | fii = 0xFFFF; |
5388 | 0 | break; |
5389 | 0 | } |
5390 | 0 | fip = tif->tif_fields[fii]; |
5391 | 0 | } |
5392 | 0 | if (fii == 0xFFFF) |
5393 | 0 | { |
5394 | 0 | TIFFWarningExtR(tif, module, |
5395 | 0 | "Wrong data type %" PRIu16 |
5396 | 0 | " for \"%s\"; tag ignored", |
5397 | 0 | dp->tdir_type, fip->field_name); |
5398 | 0 | dp->tdir_ignore = TRUE; |
5399 | 0 | } |
5400 | 0 | else |
5401 | 0 | { |
5402 | | /* check count if known in advance */ |
5403 | 0 | if ((fip->field_readcount != TIFF_VARIABLE) && |
5404 | 0 | (fip->field_readcount != TIFF_VARIABLE2)) |
5405 | 0 | { |
5406 | 0 | uint32_t expected; |
5407 | 0 | if (fip->field_readcount == TIFF_SPP) |
5408 | 0 | expected = |
5409 | 0 | (uint32_t)tif->tif_dir.td_samplesperpixel; |
5410 | 0 | else |
5411 | 0 | expected = (uint32_t)fip->field_readcount; |
5412 | 0 | if (!CheckDirCount(tif, dp, expected)) |
5413 | 0 | dp->tdir_ignore = TRUE; |
5414 | 0 | } |
5415 | 0 | } |
5416 | 0 | } |
5417 | 0 | if (!dp->tdir_ignore) |
5418 | 0 | { |
5419 | 0 | switch (dp->tdir_tag) |
5420 | 0 | { |
5421 | 0 | case EXIFTAG_SUBJECTDISTANCE: |
5422 | 0 | if (!TIFFFieldIsAnonymous(fip)) |
5423 | 0 | { |
5424 | | /* should only be called on a Exif directory */ |
5425 | | /* when exifFields[] is active */ |
5426 | 0 | (void)TIFFFetchSubjectDistance(tif, dp); |
5427 | 0 | } |
5428 | 0 | else |
5429 | 0 | { |
5430 | 0 | (void)TIFFFetchNormalTag(tif, dp, TRUE); |
5431 | 0 | } |
5432 | 0 | break; |
5433 | 0 | default: |
5434 | 0 | (void)TIFFFetchNormalTag(tif, dp, TRUE); |
5435 | 0 | break; |
5436 | 0 | } |
5437 | 0 | } /*-- if (!dp->tdir_ignore) */ |
5438 | 0 | } |
5439 | 0 | } |
5440 | | /* Evaluate final IFD data size. */ |
5441 | 0 | CalcFinalIFDdatasizeReading(tif, dircount); |
5442 | | |
5443 | | /* To be able to return from SubIFD or custom-IFD to main-IFD */ |
5444 | 0 | tif->tif_setdirectory_force_absolute = TRUE; |
5445 | 0 | if (dir) |
5446 | 0 | _TIFFfreeExt(tif, dir); |
5447 | 0 | return 1; |
5448 | 0 | } |
5449 | | |
5450 | | /* |
5451 | | * EXIF is important special case of custom IFD, so we have a special |
5452 | | * function to read it. |
5453 | | */ |
5454 | | int TIFFReadEXIFDirectory(TIFF *tif, toff_t diroff) |
5455 | 0 | { |
5456 | 0 | return TIFFReadCustomDirectory(tif, diroff, _TIFFGetExifFields()); |
5457 | 0 | } |
5458 | | |
5459 | | /* |
5460 | | *--: EXIF-GPS custom directory reading as another special case of custom IFD. |
5461 | | */ |
5462 | | int TIFFReadGPSDirectory(TIFF *tif, toff_t diroff) |
5463 | 0 | { |
5464 | 0 | return TIFFReadCustomDirectory(tif, diroff, _TIFFGetGpsFields()); |
5465 | 0 | } |
5466 | | |
5467 | | static int EstimateStripByteCounts(TIFF *tif, TIFFDirEntry *dir, |
5468 | | uint16_t dircount) |
5469 | 247 | { |
5470 | 247 | static const char module[] = "EstimateStripByteCounts"; |
5471 | 247 | uint64_t allocsize; |
5472 | 247 | uint64_t filesize; |
5473 | | |
5474 | 247 | TIFFDirEntry *dp; |
5475 | 247 | TIFFDirectory *td = &tif->tif_dir; |
5476 | 247 | uint32_t strip; |
5477 | | |
5478 | | /* Do not try to load stripbytecount as we will compute it */ |
5479 | 247 | if (!_TIFFFillStrilesInternal(tif, 0)) |
5480 | 0 | return -1; |
5481 | | |
5482 | 247 | allocsize = (uint64_t)td->td_nstrips * sizeof(uint64_t); |
5483 | 247 | filesize = 0; |
5484 | 247 | if (allocsize > 100 * 1024 * 1024) |
5485 | 0 | { |
5486 | | /* Before allocating a huge amount of memory for corrupted files, check |
5487 | | * if size of requested memory is not greater than file size. */ |
5488 | 0 | filesize = TIFFGetFileSize(tif); |
5489 | 0 | if (allocsize > filesize) |
5490 | 0 | { |
5491 | 0 | TIFFWarningExtR( |
5492 | 0 | tif, module, |
5493 | 0 | "Requested memory size for StripByteCounts of %" PRIu64 |
5494 | 0 | " is greater than filesize %" PRIu64 ". Memory not allocated", |
5495 | 0 | allocsize, filesize); |
5496 | 0 | return -1; |
5497 | 0 | } |
5498 | 0 | } |
5499 | | |
5500 | 247 | if (td->td_stripbytecount_p) |
5501 | 46 | _TIFFfreeExt(tif, td->td_stripbytecount_p); |
5502 | 247 | td->td_stripbytecount_p = (uint64_t *)_TIFFCheckMalloc( |
5503 | 247 | tif, td->td_nstrips, sizeof(uint64_t), "for \"StripByteCounts\" array"); |
5504 | 247 | if (td->td_stripbytecount_p == NULL) |
5505 | 0 | return -1; |
5506 | | |
5507 | 247 | if (td->td_compression != COMPRESSION_NONE) |
5508 | 92 | { |
5509 | 92 | uint64_t space; |
5510 | 92 | uint16_t n; |
5511 | 92 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
5512 | 84 | space = sizeof(TIFFHeaderClassic) + 2 + dircount * 12 + 4; |
5513 | 8 | else |
5514 | 8 | space = sizeof(TIFFHeaderBig) + 8 + dircount * 20 + 8; |
5515 | | /* calculate amount of space used by indirect values */ |
5516 | 806 | for (dp = dir, n = dircount; n > 0; n--, dp++) |
5517 | 719 | { |
5518 | 719 | uint32_t typewidth; |
5519 | 719 | uint64_t datasize; |
5520 | 719 | typewidth = TIFFDataWidth((TIFFDataType)dp->tdir_type); |
5521 | 719 | if (typewidth == 0) |
5522 | 5 | { |
5523 | 5 | TIFFErrorExtR( |
5524 | 5 | tif, module, |
5525 | 5 | "Cannot determine size of unknown tag type %" PRIu16, |
5526 | 5 | dp->tdir_type); |
5527 | 5 | return -1; |
5528 | 5 | } |
5529 | 714 | if (dp->tdir_count > UINT64_MAX / typewidth) |
5530 | 0 | return -1; |
5531 | 714 | datasize = (uint64_t)typewidth * dp->tdir_count; |
5532 | 714 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
5533 | 685 | { |
5534 | 685 | if (datasize <= 4) |
5535 | 499 | datasize = 0; |
5536 | 685 | } |
5537 | 29 | else |
5538 | 29 | { |
5539 | 29 | if (datasize <= 8) |
5540 | 21 | datasize = 0; |
5541 | 29 | } |
5542 | 714 | if (space > UINT64_MAX - datasize) |
5543 | 0 | return -1; |
5544 | 714 | space += datasize; |
5545 | 714 | } |
5546 | 87 | if (filesize == 0) |
5547 | 87 | filesize = TIFFGetFileSize(tif); |
5548 | 87 | if (filesize < space) |
5549 | | /* we should perhaps return in error ? */ |
5550 | 69 | space = filesize; |
5551 | 18 | else |
5552 | 18 | space = filesize - space; |
5553 | 87 | if (td->td_planarconfig == PLANARCONFIG_SEPARATE) |
5554 | 5 | space /= td->td_samplesperpixel; |
5555 | 208 | for (strip = 0; strip < td->td_nstrips; strip++) |
5556 | 121 | td->td_stripbytecount_p[strip] = space; |
5557 | | /* |
5558 | | * This gross hack handles the case were the offset to |
5559 | | * the last strip is past the place where we think the strip |
5560 | | * should begin. Since a strip of data must be contiguous, |
5561 | | * it's safe to assume that we've overestimated the amount |
5562 | | * of data in the strip and trim this number back accordingly. |
5563 | | */ |
5564 | 87 | strip--; |
5565 | 87 | if (td->td_stripoffset_p[strip] > |
5566 | 87 | UINT64_MAX - td->td_stripbytecount_p[strip]) |
5567 | 1 | return -1; |
5568 | 86 | if (td->td_stripoffset_p[strip] + td->td_stripbytecount_p[strip] > |
5569 | 86 | filesize) |
5570 | 47 | { |
5571 | 47 | if (td->td_stripoffset_p[strip] >= filesize) |
5572 | 25 | { |
5573 | | /* Not sure what we should in that case... */ |
5574 | 25 | td->td_stripbytecount_p[strip] = 0; |
5575 | 25 | } |
5576 | 22 | else |
5577 | 22 | { |
5578 | 22 | td->td_stripbytecount_p[strip] = |
5579 | 22 | filesize - td->td_stripoffset_p[strip]; |
5580 | 22 | } |
5581 | 47 | } |
5582 | 86 | } |
5583 | 155 | else if (isTiled(tif)) |
5584 | 21 | { |
5585 | 21 | uint64_t bytespertile = TIFFTileSize64(tif); |
5586 | | |
5587 | 4.40k | for (strip = 0; strip < td->td_nstrips; strip++) |
5588 | 4.38k | td->td_stripbytecount_p[strip] = bytespertile; |
5589 | 21 | } |
5590 | 134 | else |
5591 | 134 | { |
5592 | 134 | uint64_t rowbytes = TIFFScanlineSize64(tif); |
5593 | 134 | uint32_t rowsperstrip = td->td_imagelength / td->td_stripsperimage; |
5594 | 494k | for (strip = 0; strip < td->td_nstrips; strip++) |
5595 | 493k | { |
5596 | 493k | if (rowbytes > 0 && rowsperstrip > UINT64_MAX / rowbytes) |
5597 | 1 | return -1; |
5598 | 493k | td->td_stripbytecount_p[strip] = rowbytes * rowsperstrip; |
5599 | 493k | } |
5600 | 134 | } |
5601 | 240 | TIFFSetFieldBit(tif, FIELD_STRIPBYTECOUNTS); |
5602 | 240 | if (!TIFFFieldSet(tif, FIELD_ROWSPERSTRIP)) |
5603 | 179 | td->td_rowsperstrip = td->td_imagelength; |
5604 | 240 | return 1; |
5605 | 247 | } |
5606 | | |
5607 | | static void MissingRequired(TIFF *tif, const char *tagname) |
5608 | 232 | { |
5609 | 232 | static const char module[] = "MissingRequired"; |
5610 | | |
5611 | 232 | TIFFErrorExtR(tif, module, |
5612 | 232 | "TIFF directory is missing required \"%s\" field", tagname); |
5613 | 232 | } |
5614 | | |
5615 | | static unsigned long hashFuncOffsetToNumber(const void *elt) |
5616 | 77.1k | { |
5617 | 77.1k | const TIFFOffsetAndDirNumber *offsetAndDirNumber = |
5618 | 77.1k | (const TIFFOffsetAndDirNumber *)elt; |
5619 | 77.1k | const uint32_t hash = (uint32_t)(offsetAndDirNumber->offset >> 32) ^ |
5620 | 77.1k | ((uint32_t)offsetAndDirNumber->offset & 0xFFFFFFFFU); |
5621 | 77.1k | return hash; |
5622 | 77.1k | } |
5623 | | |
5624 | | static bool equalFuncOffsetToNumber(const void *elt1, const void *elt2) |
5625 | 18.5k | { |
5626 | 18.5k | const TIFFOffsetAndDirNumber *offsetAndDirNumber1 = |
5627 | 18.5k | (const TIFFOffsetAndDirNumber *)elt1; |
5628 | 18.5k | const TIFFOffsetAndDirNumber *offsetAndDirNumber2 = |
5629 | 18.5k | (const TIFFOffsetAndDirNumber *)elt2; |
5630 | 18.5k | return offsetAndDirNumber1->offset == offsetAndDirNumber2->offset; |
5631 | 18.5k | } |
5632 | | |
5633 | | static unsigned long hashFuncNumberToOffset(const void *elt) |
5634 | 58.6k | { |
5635 | 58.6k | const TIFFOffsetAndDirNumber *offsetAndDirNumber = |
5636 | 58.6k | (const TIFFOffsetAndDirNumber *)elt; |
5637 | 58.6k | return offsetAndDirNumber->dirNumber; |
5638 | 58.6k | } |
5639 | | |
5640 | | static bool equalFuncNumberToOffset(const void *elt1, const void *elt2) |
5641 | 0 | { |
5642 | 0 | const TIFFOffsetAndDirNumber *offsetAndDirNumber1 = |
5643 | 0 | (const TIFFOffsetAndDirNumber *)elt1; |
5644 | 0 | const TIFFOffsetAndDirNumber *offsetAndDirNumber2 = |
5645 | 0 | (const TIFFOffsetAndDirNumber *)elt2; |
5646 | 0 | return offsetAndDirNumber1->dirNumber == offsetAndDirNumber2->dirNumber; |
5647 | 0 | } |
5648 | | |
5649 | | /* |
5650 | | * Check the directory number and offset against the list of already seen |
5651 | | * directory numbers and offsets. This is a trick to prevent IFD looping. |
5652 | | * The one can create TIFF file with looped directory pointers. We will |
5653 | | * maintain a list of already seen directories and check every IFD offset |
5654 | | * and its IFD number against that list. However, the offset of an IFD number |
5655 | | * can change - e.g. when writing updates to file. |
5656 | | * Returns 1 if all is ok; 0 if last directory or IFD loop is encountered, |
5657 | | * or an error has occurred. |
5658 | | */ |
5659 | | int _TIFFCheckDirNumberAndOffset(TIFF *tif, tdir_t dirn, uint64_t diroff) |
5660 | 38.0k | { |
5661 | 38.0k | TIFFOffsetAndDirNumber entry; |
5662 | 38.0k | TIFFOffsetAndDirNumber *entryPtr; |
5663 | 38.0k | TIFFOffsetAndDirNumber *foundEntry; |
5664 | 38.0k | if (diroff == 0) /* no more directories */ |
5665 | 0 | return 0; |
5666 | | |
5667 | 38.0k | if (tif->tif_map_dir_offset_to_number == NULL) |
5668 | 19.4k | { |
5669 | 19.4k | tif->tif_map_dir_offset_to_number = TIFFHashSetNew( |
5670 | 19.4k | hashFuncOffsetToNumber, equalFuncOffsetToNumber, free); |
5671 | 19.4k | if (tif->tif_map_dir_offset_to_number == NULL) |
5672 | 0 | { |
5673 | 0 | TIFFErrorExtR(tif, "_TIFFCheckDirNumberAndOffset", |
5674 | 0 | "Not enough memory"); |
5675 | 0 | return 1; |
5676 | 0 | } |
5677 | 19.4k | } |
5678 | | |
5679 | 38.0k | if (tif->tif_map_dir_number_to_offset == NULL) |
5680 | 19.4k | { |
5681 | | /* No free callback for this map, as it shares the same items as |
5682 | | * tif->tif_map_dir_offset_to_number. */ |
5683 | 19.4k | tif->tif_map_dir_number_to_offset = TIFFHashSetNew( |
5684 | 19.4k | hashFuncNumberToOffset, equalFuncNumberToOffset, NULL); |
5685 | 19.4k | if (tif->tif_map_dir_number_to_offset == NULL) |
5686 | 0 | { |
5687 | 0 | TIFFErrorExtR(tif, "_TIFFCheckDirNumberAndOffset", |
5688 | 0 | "Not enough memory"); |
5689 | 0 | return 1; |
5690 | 0 | } |
5691 | 19.4k | } |
5692 | | |
5693 | | /* Check if offset is already in the list: |
5694 | | * - yes: check, if offset is at the same IFD number - if not, it is an IFD |
5695 | | * loop |
5696 | | * - no: add to list or update offset at that IFD number |
5697 | | */ |
5698 | 38.0k | entry.offset = diroff; |
5699 | 38.0k | entry.dirNumber = dirn; |
5700 | | |
5701 | 38.0k | foundEntry = |
5702 | 38.0k | (TIFFOffsetAndDirNumber *)TIFFHashSetLookup( |
5703 | 38.0k | tif->tif_map_dir_offset_to_number, &entry); |
5704 | 38.0k | if (foundEntry) |
5705 | 18.5k | { |
5706 | 18.5k | if (foundEntry->dirNumber == dirn) |
5707 | 18.5k | { |
5708 | 18.5k | return 1; |
5709 | 18.5k | } |
5710 | 0 | else |
5711 | 0 | { |
5712 | 0 | TIFFWarningExtR(tif, "_TIFFCheckDirNumberAndOffset", |
5713 | 0 | "TIFF directory %d has IFD looping to directory %u " |
5714 | 0 | "at offset 0x%" PRIx64 " (%" PRIu64 ")", |
5715 | 0 | (int)dirn - 1, foundEntry->dirNumber, diroff, |
5716 | 0 | diroff); |
5717 | 0 | return 0; |
5718 | 0 | } |
5719 | 18.5k | } |
5720 | | |
5721 | | /* Check if offset of an IFD has been changed and update offset of that IFD |
5722 | | * number. */ |
5723 | 19.5k | foundEntry = (TIFFOffsetAndDirNumber *)TIFFHashSetLookup( |
5724 | 19.5k | tif->tif_map_dir_number_to_offset, &entry); |
5725 | 19.5k | if (foundEntry) |
5726 | 0 | { |
5727 | 0 | if (foundEntry->offset != diroff) |
5728 | 0 | { |
5729 | 0 | TIFFOffsetAndDirNumber entryOld; |
5730 | 0 | TIFFOffsetAndDirNumber *foundEntryOld; |
5731 | 0 | entryOld.offset = foundEntry->offset; |
5732 | 0 | entryOld.dirNumber = dirn; |
5733 | | /* We must remove first from tif_map_dir_number_to_offset as the */ |
5734 | | /* entry is owned (and thus freed) by */ |
5735 | | /* tif_map_dir_offset_to_number */ |
5736 | 0 | foundEntryOld = |
5737 | 0 | (TIFFOffsetAndDirNumber *)TIFFHashSetLookup( |
5738 | 0 | tif->tif_map_dir_number_to_offset, &entryOld); |
5739 | 0 | if (foundEntryOld) |
5740 | 0 | { |
5741 | 0 | TIFFHashSetRemove(tif->tif_map_dir_number_to_offset, |
5742 | 0 | foundEntryOld); |
5743 | 0 | } |
5744 | 0 | foundEntryOld = (TIFFOffsetAndDirNumber *)TIFFHashSetLookup( |
5745 | 0 | tif->tif_map_dir_offset_to_number, &entryOld); |
5746 | 0 | if (foundEntryOld) |
5747 | 0 | { |
5748 | 0 | TIFFHashSetRemove(tif->tif_map_dir_offset_to_number, |
5749 | 0 | foundEntryOld); |
5750 | 0 | } |
5751 | |
|
5752 | 0 | entryPtr = (TIFFOffsetAndDirNumber *)malloc( |
5753 | 0 | sizeof(TIFFOffsetAndDirNumber)); |
5754 | 0 | if (entryPtr == NULL) |
5755 | 0 | { |
5756 | 0 | return 0; |
5757 | 0 | } |
5758 | | |
5759 | | /* Add IFD offset and dirn to IFD directory list */ |
5760 | 0 | *entryPtr = entry; |
5761 | |
|
5762 | 0 | if (!TIFFHashSetInsert(tif->tif_map_dir_offset_to_number, entryPtr)) |
5763 | 0 | { |
5764 | 0 | TIFFErrorExtR( |
5765 | 0 | tif, "_TIFFCheckDirNumberAndOffset", |
5766 | 0 | "Insertion in tif_map_dir_offset_to_number failed"); |
5767 | 0 | return 0; |
5768 | 0 | } |
5769 | 0 | if (!TIFFHashSetInsert(tif->tif_map_dir_number_to_offset, entryPtr)) |
5770 | 0 | { |
5771 | 0 | TIFFErrorExtR( |
5772 | 0 | tif, "_TIFFCheckDirNumberAndOffset", |
5773 | 0 | "Insertion in tif_map_dir_number_to_offset failed"); |
5774 | 0 | return 0; |
5775 | 0 | } |
5776 | 0 | } |
5777 | 0 | return 1; |
5778 | 0 | } |
5779 | | |
5780 | | /* Arbitrary (hopefully big enough) limit */ |
5781 | 19.5k | if (TIFFHashSetSize(tif->tif_map_dir_offset_to_number) >= |
5782 | 19.5k | TIFF_MAX_DIR_COUNT) |
5783 | 0 | { |
5784 | 0 | TIFFErrorExtR(tif, "_TIFFCheckDirNumberAndOffset", |
5785 | 0 | "Cannot handle more than %u TIFF directories", |
5786 | 0 | TIFF_MAX_DIR_COUNT); |
5787 | 0 | return 0; |
5788 | 0 | } |
5789 | | |
5790 | 19.5k | entryPtr = |
5791 | 19.5k | (TIFFOffsetAndDirNumber *)malloc(sizeof(TIFFOffsetAndDirNumber)); |
5792 | 19.5k | if (entryPtr == NULL) |
5793 | 0 | { |
5794 | 0 | TIFFErrorExtR(tif, "_TIFFCheckDirNumberAndOffset", |
5795 | 0 | "malloc(sizeof(TIFFOffsetAndDirNumber)) failed"); |
5796 | 0 | return 0; |
5797 | 0 | } |
5798 | | |
5799 | | /* Add IFD offset and dirn to IFD directory list */ |
5800 | 19.5k | *entryPtr = entry; |
5801 | | |
5802 | 19.5k | if (!TIFFHashSetInsert(tif->tif_map_dir_offset_to_number, entryPtr)) |
5803 | 0 | { |
5804 | 0 | TIFFErrorExtR(tif, "_TIFFCheckDirNumberAndOffset", |
5805 | 0 | "Insertion in tif_map_dir_offset_to_number failed"); |
5806 | 0 | return 0; |
5807 | 0 | } |
5808 | 19.5k | if (!TIFFHashSetInsert(tif->tif_map_dir_number_to_offset, entryPtr)) |
5809 | 0 | { |
5810 | 0 | TIFFErrorExtR(tif, "_TIFFCheckDirNumberAndOffset", |
5811 | 0 | "Insertion in tif_map_dir_number_to_offset failed"); |
5812 | 0 | return 0; |
5813 | 0 | } |
5814 | | |
5815 | 19.5k | return 1; |
5816 | 19.5k | } /* --- _TIFFCheckDirNumberAndOffset() ---*/ |
5817 | | |
5818 | | /* |
5819 | | * Retrieve the matching IFD directory number of a given IFD offset |
5820 | | * from the list of directories already seen. |
5821 | | * Returns 1 if the offset was in the list and the directory number |
5822 | | * can be returned. |
5823 | | * Otherwise returns 0 or if an error occurred. |
5824 | | */ |
5825 | | int _TIFFGetDirNumberFromOffset(TIFF *tif, uint64_t diroff, tdir_t *dirn) |
5826 | 0 | { |
5827 | 0 | TIFFOffsetAndDirNumber entry; |
5828 | 0 | TIFFOffsetAndDirNumber *foundEntry; |
5829 | 0 | if (diroff == 0) /* no more directories */ |
5830 | 0 | return 0; |
5831 | | |
5832 | | /* Check if offset is already in the list and return matching directory |
5833 | | * number. Otherwise update IFD list using TIFFNumberOfDirectories() and |
5834 | | * search again in IFD list. |
5835 | | */ |
5836 | 0 | if (tif->tif_map_dir_offset_to_number == NULL) |
5837 | 0 | return 0; |
5838 | 0 | entry.offset = diroff; |
5839 | 0 | entry.dirNumber = 0; /* not used */ |
5840 | |
|
5841 | 0 | foundEntry = |
5842 | 0 | (TIFFOffsetAndDirNumber *)TIFFHashSetLookup( |
5843 | 0 | tif->tif_map_dir_offset_to_number, &entry); |
5844 | 0 | if (foundEntry) |
5845 | 0 | { |
5846 | 0 | *dirn = foundEntry->dirNumber; |
5847 | 0 | return 1; |
5848 | 0 | } |
5849 | | |
5850 | | /* This updates the directory list for all main-IFDs in the file. */ |
5851 | 0 | TIFFNumberOfDirectories(tif); |
5852 | |
|
5853 | 0 | foundEntry = (TIFFOffsetAndDirNumber *)TIFFHashSetLookup( |
5854 | 0 | tif->tif_map_dir_offset_to_number, &entry); |
5855 | 0 | if (foundEntry) |
5856 | 0 | { |
5857 | 0 | *dirn = foundEntry->dirNumber; |
5858 | 0 | return 1; |
5859 | 0 | } |
5860 | | |
5861 | 0 | return 0; |
5862 | 0 | } /*--- _TIFFGetDirNumberFromOffset() ---*/ |
5863 | | |
5864 | | /* |
5865 | | * Retrieve the matching IFD directory offset of a given IFD number |
5866 | | * from the list of directories already seen. |
5867 | | * Returns 1 if the offset was in the list of already seen IFDs and the |
5868 | | * directory offset can be returned. The directory list is not updated. |
5869 | | * Otherwise returns 0 or if an error occurred. |
5870 | | */ |
5871 | | int _TIFFGetOffsetFromDirNumber(TIFF *tif, tdir_t dirn, uint64_t *diroff) |
5872 | 0 | { |
5873 | 0 | TIFFOffsetAndDirNumber entry; |
5874 | 0 | TIFFOffsetAndDirNumber *foundEntry; |
5875 | |
|
5876 | 0 | if (tif->tif_map_dir_number_to_offset == NULL) |
5877 | 0 | return 0; |
5878 | 0 | entry.offset = 0; /* not used */ |
5879 | 0 | entry.dirNumber = dirn; |
5880 | |
|
5881 | 0 | foundEntry = |
5882 | 0 | (TIFFOffsetAndDirNumber *)TIFFHashSetLookup( |
5883 | 0 | tif->tif_map_dir_number_to_offset, &entry); |
5884 | 0 | if (foundEntry) |
5885 | 0 | { |
5886 | 0 | *diroff = foundEntry->offset; |
5887 | 0 | return 1; |
5888 | 0 | } |
5889 | | |
5890 | 0 | return 0; |
5891 | 0 | } /*--- _TIFFGetOffsetFromDirNumber() ---*/ |
5892 | | |
5893 | | /* |
5894 | | * Remove an entry from the directory list of already seen directories |
5895 | | * by directory offset. |
5896 | | * If an entry is to be removed from the list, it is also okay if the entry |
5897 | | * is not in the list or the list does not exist. |
5898 | | */ |
5899 | | int _TIFFRemoveEntryFromDirectoryListByOffset(TIFF *tif, uint64_t diroff) |
5900 | 0 | { |
5901 | 0 | TIFFOffsetAndDirNumber entryOld; |
5902 | 0 | TIFFOffsetAndDirNumber *foundEntryOldOff; |
5903 | 0 | if (tif->tif_map_dir_offset_to_number == NULL) |
5904 | 0 | return 1; |
5905 | | |
5906 | 0 | entryOld.offset = diroff; |
5907 | 0 | entryOld.dirNumber = 0; |
5908 | | /* We must remove first from tif_map_dir_number_to_offset as the |
5909 | | * entry is owned (and thus freed) by tif_map_dir_offset_to_number. |
5910 | | * However, we need firstly to find the directory number from offset. */ |
5911 | |
|
5912 | 0 | foundEntryOldOff = |
5913 | 0 | (TIFFOffsetAndDirNumber *)TIFFHashSetLookup( |
5914 | 0 | tif->tif_map_dir_offset_to_number, &entryOld); |
5915 | 0 | if (foundEntryOldOff) |
5916 | 0 | { |
5917 | 0 | entryOld.dirNumber = foundEntryOldOff->dirNumber; |
5918 | 0 | if (tif->tif_map_dir_number_to_offset != NULL) |
5919 | 0 | { |
5920 | 0 | TIFFOffsetAndDirNumber *foundEntryOldDir = |
5921 | 0 | (TIFFOffsetAndDirNumber *)TIFFHashSetLookup( |
5922 | 0 | tif->tif_map_dir_number_to_offset, &entryOld); |
5923 | 0 | if (foundEntryOldDir) |
5924 | 0 | { |
5925 | 0 | TIFFHashSetRemove(tif->tif_map_dir_number_to_offset, |
5926 | 0 | foundEntryOldDir); |
5927 | 0 | TIFFHashSetRemove(tif->tif_map_dir_offset_to_number, |
5928 | 0 | foundEntryOldOff); |
5929 | 0 | return 1; |
5930 | 0 | } |
5931 | 0 | } |
5932 | 0 | else |
5933 | 0 | { |
5934 | 0 | TIFFErrorExtR(tif, "_TIFFRemoveEntryFromDirectoryListByOffset", |
5935 | 0 | "Unexpectedly tif_map_dir_number_to_offset is " |
5936 | 0 | "missing but tif_map_dir_offset_to_number exists."); |
5937 | 0 | return 0; |
5938 | 0 | } |
5939 | 0 | } |
5940 | 0 | return 1; |
5941 | 0 | } /*--- _TIFFRemoveEntryFromDirectoryListByOffset() ---*/ |
5942 | | |
5943 | | /* |
5944 | | * Check the count field of a directory entry against a known value. The |
5945 | | * caller is expected to skip/ignore the tag if there is a mismatch. |
5946 | | */ |
5947 | | static int CheckDirCount(TIFF *tif, TIFFDirEntry *dir, uint32_t count) |
5948 | 0 | { |
5949 | 0 | if ((uint64_t)count > dir->tdir_count) |
5950 | 0 | { |
5951 | 0 | const TIFFField *fip = TIFFFieldWithTag(tif, dir->tdir_tag); |
5952 | 0 | TIFFWarningExtR(tif, tif->tif_name, |
5953 | 0 | "incorrect count for field \"%s\" (%" PRIu64 |
5954 | 0 | ", expecting %" PRIu32 "); tag ignored", |
5955 | 0 | fip ? fip->field_name : "unknown tagname", |
5956 | 0 | dir->tdir_count, count); |
5957 | 0 | return (0); |
5958 | 0 | } |
5959 | 0 | else if ((uint64_t)count < dir->tdir_count) |
5960 | 0 | { |
5961 | 0 | const TIFFField *fip = TIFFFieldWithTag(tif, dir->tdir_tag); |
5962 | 0 | TIFFWarningExtR(tif, tif->tif_name, |
5963 | 0 | "incorrect count for field \"%s\" (%" PRIu64 |
5964 | 0 | ", expecting %" PRIu32 "); tag trimmed", |
5965 | 0 | fip ? fip->field_name : "unknown tagname", |
5966 | 0 | dir->tdir_count, count); |
5967 | 0 | dir->tdir_count = count; |
5968 | 0 | return (1); |
5969 | 0 | } |
5970 | 0 | return (1); |
5971 | 0 | } |
5972 | | |
5973 | | /* |
5974 | | * Read IFD structure from the specified offset. If the pointer to |
5975 | | * nextdiroff variable has been specified, read it too. Function returns a |
5976 | | * number of fields in the directory or 0 if failed. |
5977 | | */ |
5978 | | static uint16_t TIFFFetchDirectory(TIFF *tif, uint64_t diroff, |
5979 | | TIFFDirEntry **pdir, uint64_t *nextdiroff) |
5980 | 988 | { |
5981 | 988 | static const char module[] = "TIFFFetchDirectory"; |
5982 | | |
5983 | 988 | void *origdir; |
5984 | 988 | uint16_t dircount16; |
5985 | 988 | uint32_t dirsize; |
5986 | 988 | TIFFDirEntry *dir; |
5987 | 988 | uint8_t *ma; |
5988 | 988 | TIFFDirEntry *mb; |
5989 | 988 | uint16_t n; |
5990 | 988 | uint64_t filesize; |
5991 | 988 | uint64_t allocsize; |
5992 | 988 | assert(pdir); |
5993 | | |
5994 | 988 | tif->tif_diroff = diroff; |
5995 | 988 | if (nextdiroff) |
5996 | 988 | *nextdiroff = 0; |
5997 | 988 | if (!isMapped(tif)) |
5998 | 988 | { |
5999 | 988 | if (!SeekOK(tif, tif->tif_diroff)) |
6000 | 100 | { |
6001 | 100 | TIFFErrorExtR(tif, module, |
6002 | 100 | "%s: Seek error accessing TIFF directory", |
6003 | 100 | tif->tif_name); |
6004 | 100 | return 0; |
6005 | 100 | } |
6006 | 888 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
6007 | 825 | { |
6008 | 825 | if (!ReadOK(tif, &dircount16, sizeof(uint16_t))) |
6009 | 1 | { |
6010 | 1 | TIFFErrorExtR(tif, module, |
6011 | 1 | "%s: Can not read TIFF directory count", |
6012 | 1 | tif->tif_name); |
6013 | 1 | return 0; |
6014 | 1 | } |
6015 | 824 | if (tif->tif_flags & TIFF_SWAB) |
6016 | 126 | TIFFSwabShort(&dircount16); |
6017 | 824 | if (dircount16 > 4096) |
6018 | 3 | { |
6019 | 3 | TIFFErrorExtR(tif, module, |
6020 | 3 | "Sanity check on directory count failed, this is " |
6021 | 3 | "probably not a valid IFD offset"); |
6022 | 3 | return 0; |
6023 | 3 | } |
6024 | 821 | dirsize = 12; |
6025 | 821 | } |
6026 | 63 | else |
6027 | 63 | { |
6028 | 63 | uint64_t dircount64; |
6029 | 63 | if (!ReadOK(tif, &dircount64, sizeof(uint64_t))) |
6030 | 1 | { |
6031 | 1 | TIFFErrorExtR(tif, module, |
6032 | 1 | "%s: Can not read TIFF directory count", |
6033 | 1 | tif->tif_name); |
6034 | 1 | return 0; |
6035 | 1 | } |
6036 | 62 | if (tif->tif_flags & TIFF_SWAB) |
6037 | 9 | TIFFSwabLong8(&dircount64); |
6038 | 62 | if (dircount64 > 4096) |
6039 | 2 | { |
6040 | 2 | TIFFErrorExtR(tif, module, |
6041 | 2 | "Sanity check on directory count failed, this is " |
6042 | 2 | "probably not a valid IFD offset"); |
6043 | 2 | return 0; |
6044 | 2 | } |
6045 | 60 | dircount16 = (uint16_t)dircount64; |
6046 | 60 | dirsize = 20; |
6047 | 60 | } |
6048 | 881 | origdir = _TIFFCheckMalloc(tif, dircount16, dirsize, |
6049 | 881 | "to read TIFF directory"); |
6050 | 881 | if (origdir == NULL) |
6051 | 3 | return 0; |
6052 | 878 | if (!ReadOK(tif, origdir, (tmsize_t)(dircount16 * dirsize))) |
6053 | 19 | { |
6054 | 19 | TIFFErrorExtR(tif, module, "%.100s: Can not read TIFF directory", |
6055 | 19 | tif->tif_name); |
6056 | 19 | _TIFFfreeExt(tif, origdir); |
6057 | 19 | return 0; |
6058 | 19 | } |
6059 | | /* |
6060 | | * Read offset to next directory for sequential scans if |
6061 | | * needed. |
6062 | | */ |
6063 | 859 | if (nextdiroff) |
6064 | 859 | { |
6065 | 859 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
6066 | 801 | { |
6067 | 801 | uint32_t nextdiroff32; |
6068 | 801 | if (!ReadOK(tif, &nextdiroff32, sizeof(uint32_t))) |
6069 | 239 | nextdiroff32 = 0; |
6070 | 801 | if (tif->tif_flags & TIFF_SWAB) |
6071 | 123 | TIFFSwabLong(&nextdiroff32); |
6072 | 801 | *nextdiroff = nextdiroff32; |
6073 | 801 | } |
6074 | 58 | else |
6075 | 58 | { |
6076 | 58 | if (!ReadOK(tif, nextdiroff, sizeof(uint64_t))) |
6077 | 40 | *nextdiroff = 0; |
6078 | 58 | if (tif->tif_flags & TIFF_SWAB) |
6079 | 9 | TIFFSwabLong8(nextdiroff); |
6080 | 58 | } |
6081 | 859 | } |
6082 | 859 | } |
6083 | 0 | else |
6084 | 0 | { |
6085 | 0 | tmsize_t m; |
6086 | 0 | tmsize_t off; |
6087 | 0 | if (tif->tif_diroff > (uint64_t)INT64_MAX) |
6088 | 0 | { |
6089 | 0 | TIFFErrorExtR(tif, module, "Can not read TIFF directory count"); |
6090 | 0 | return (0); |
6091 | 0 | } |
6092 | 0 | off = (tmsize_t)tif->tif_diroff; |
6093 | | |
6094 | | /* |
6095 | | * Check for integer overflow when validating the dir_off, |
6096 | | * otherwise a very high offset may cause an OOB read and |
6097 | | * crash the client. Make two comparisons instead of |
6098 | | * |
6099 | | * off + sizeof(uint16_t) > tif->tif_size |
6100 | | * |
6101 | | * to avoid overflow. |
6102 | | */ |
6103 | 0 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
6104 | 0 | { |
6105 | 0 | m = off + sizeof(uint16_t); |
6106 | 0 | if ((m < off) || (m < (tmsize_t)sizeof(uint16_t)) || |
6107 | 0 | (m > tif->tif_size)) |
6108 | 0 | { |
6109 | 0 | TIFFErrorExtR(tif, module, "Can not read TIFF directory count"); |
6110 | 0 | return 0; |
6111 | 0 | } |
6112 | 0 | else |
6113 | 0 | { |
6114 | 0 | _TIFFmemcpy(&dircount16, tif->tif_base + off, sizeof(uint16_t)); |
6115 | 0 | } |
6116 | 0 | off += sizeof(uint16_t); |
6117 | 0 | if (tif->tif_flags & TIFF_SWAB) |
6118 | 0 | TIFFSwabShort(&dircount16); |
6119 | 0 | if (dircount16 > 4096) |
6120 | 0 | { |
6121 | 0 | TIFFErrorExtR(tif, module, |
6122 | 0 | "Sanity check on directory count failed, this is " |
6123 | 0 | "probably not a valid IFD offset"); |
6124 | 0 | return 0; |
6125 | 0 | } |
6126 | 0 | dirsize = 12; |
6127 | 0 | } |
6128 | 0 | else |
6129 | 0 | { |
6130 | 0 | uint64_t dircount64; |
6131 | 0 | m = off + sizeof(uint64_t); |
6132 | 0 | if ((m < off) || (m < (tmsize_t)sizeof(uint64_t)) || |
6133 | 0 | (m > tif->tif_size)) |
6134 | 0 | { |
6135 | 0 | TIFFErrorExtR(tif, module, "Can not read TIFF directory count"); |
6136 | 0 | return 0; |
6137 | 0 | } |
6138 | 0 | else |
6139 | 0 | { |
6140 | 0 | _TIFFmemcpy(&dircount64, tif->tif_base + off, sizeof(uint64_t)); |
6141 | 0 | } |
6142 | 0 | off += sizeof(uint64_t); |
6143 | 0 | if (tif->tif_flags & TIFF_SWAB) |
6144 | 0 | TIFFSwabLong8(&dircount64); |
6145 | 0 | if (dircount64 > 4096) |
6146 | 0 | { |
6147 | 0 | TIFFErrorExtR(tif, module, |
6148 | 0 | "Sanity check on directory count failed, this is " |
6149 | 0 | "probably not a valid IFD offset"); |
6150 | 0 | return 0; |
6151 | 0 | } |
6152 | 0 | dircount16 = (uint16_t)dircount64; |
6153 | 0 | dirsize = 20; |
6154 | 0 | } |
6155 | 0 | if (dircount16 == 0) |
6156 | 0 | { |
6157 | 0 | TIFFErrorExtR(tif, module, |
6158 | 0 | "Sanity check on directory count failed, zero tag " |
6159 | 0 | "directories not supported"); |
6160 | 0 | return 0; |
6161 | 0 | } |
6162 | | /* Before allocating a huge amount of memory for corrupted files, check |
6163 | | * if size of requested memory is not greater than file size. */ |
6164 | 0 | filesize = TIFFGetFileSize(tif); |
6165 | 0 | allocsize = (uint64_t)dircount16 * dirsize; |
6166 | 0 | if (allocsize > filesize) |
6167 | 0 | { |
6168 | 0 | TIFFWarningExtR( |
6169 | 0 | tif, module, |
6170 | 0 | "Requested memory size for TIFF directory of %" PRIu64 |
6171 | 0 | " is greater than filesize %" PRIu64 |
6172 | 0 | ". Memory not allocated, TIFF directory not read", |
6173 | 0 | allocsize, filesize); |
6174 | 0 | return 0; |
6175 | 0 | } |
6176 | 0 | origdir = _TIFFCheckMalloc(tif, dircount16, dirsize, |
6177 | 0 | "to read TIFF directory"); |
6178 | 0 | if (origdir == NULL) |
6179 | 0 | return 0; |
6180 | 0 | m = off + dircount16 * dirsize; |
6181 | 0 | if ((m < off) || (m < (tmsize_t)(dircount16 * dirsize)) || |
6182 | 0 | (m > tif->tif_size)) |
6183 | 0 | { |
6184 | 0 | TIFFErrorExtR(tif, module, "Can not read TIFF directory"); |
6185 | 0 | _TIFFfreeExt(tif, origdir); |
6186 | 0 | return 0; |
6187 | 0 | } |
6188 | 0 | else |
6189 | 0 | { |
6190 | 0 | _TIFFmemcpy(origdir, tif->tif_base + off, dircount16 * dirsize); |
6191 | 0 | } |
6192 | 0 | if (nextdiroff) |
6193 | 0 | { |
6194 | 0 | off += dircount16 * dirsize; |
6195 | 0 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
6196 | 0 | { |
6197 | 0 | uint32_t nextdiroff32; |
6198 | 0 | m = off + sizeof(uint32_t); |
6199 | 0 | if ((m < off) || (m < (tmsize_t)sizeof(uint32_t)) || |
6200 | 0 | (m > tif->tif_size)) |
6201 | 0 | nextdiroff32 = 0; |
6202 | 0 | else |
6203 | 0 | _TIFFmemcpy(&nextdiroff32, tif->tif_base + off, |
6204 | 0 | sizeof(uint32_t)); |
6205 | 0 | if (tif->tif_flags & TIFF_SWAB) |
6206 | 0 | TIFFSwabLong(&nextdiroff32); |
6207 | 0 | *nextdiroff = nextdiroff32; |
6208 | 0 | } |
6209 | 0 | else |
6210 | 0 | { |
6211 | 0 | m = off + sizeof(uint64_t); |
6212 | 0 | if ((m < off) || (m < (tmsize_t)sizeof(uint64_t)) || |
6213 | 0 | (m > tif->tif_size)) |
6214 | 0 | *nextdiroff = 0; |
6215 | 0 | else |
6216 | 0 | _TIFFmemcpy(nextdiroff, tif->tif_base + off, |
6217 | 0 | sizeof(uint64_t)); |
6218 | 0 | if (tif->tif_flags & TIFF_SWAB) |
6219 | 0 | TIFFSwabLong8(nextdiroff); |
6220 | 0 | } |
6221 | 0 | } |
6222 | 0 | } |
6223 | | /* No check against filesize needed here because "dir" should have same size |
6224 | | * than "origdir" checked above. */ |
6225 | 859 | dir = (TIFFDirEntry *)_TIFFCheckMalloc( |
6226 | 859 | tif, dircount16, sizeof(TIFFDirEntry), "to read TIFF directory"); |
6227 | 859 | if (dir == 0) |
6228 | 0 | { |
6229 | 0 | _TIFFfreeExt(tif, origdir); |
6230 | 0 | return 0; |
6231 | 0 | } |
6232 | 859 | ma = (uint8_t *)origdir; |
6233 | 859 | mb = dir; |
6234 | 45.3k | for (n = 0; n < dircount16; n++) |
6235 | 44.4k | { |
6236 | 44.4k | mb->tdir_ignore = FALSE; |
6237 | 44.4k | if (tif->tif_flags & TIFF_SWAB) |
6238 | 2.31k | TIFFSwabShort((uint16_t *)ma); |
6239 | 44.4k | mb->tdir_tag = *(uint16_t *)ma; |
6240 | 44.4k | ma += sizeof(uint16_t); |
6241 | 44.4k | if (tif->tif_flags & TIFF_SWAB) |
6242 | 2.31k | TIFFSwabShort((uint16_t *)ma); |
6243 | 44.4k | mb->tdir_type = *(uint16_t *)ma; |
6244 | 44.4k | ma += sizeof(uint16_t); |
6245 | 44.4k | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
6246 | 44.1k | { |
6247 | 44.1k | if (tif->tif_flags & TIFF_SWAB) |
6248 | 2.17k | TIFFSwabLong((uint32_t *)ma); |
6249 | 44.1k | mb->tdir_count = (uint64_t)(*(uint32_t *)ma); |
6250 | 44.1k | ma += sizeof(uint32_t); |
6251 | 44.1k | mb->tdir_offset.toff_long8 = 0; |
6252 | 44.1k | *(uint32_t *)(&mb->tdir_offset) = *(uint32_t *)ma; |
6253 | 44.1k | ma += sizeof(uint32_t); |
6254 | 44.1k | } |
6255 | 323 | else |
6256 | 323 | { |
6257 | 323 | if (tif->tif_flags & TIFF_SWAB) |
6258 | 135 | TIFFSwabLong8((uint64_t *)ma); |
6259 | 323 | mb->tdir_count = TIFFReadUInt64(ma); |
6260 | 323 | ma += sizeof(uint64_t); |
6261 | 323 | mb->tdir_offset.toff_long8 = TIFFReadUInt64(ma); |
6262 | 323 | ma += sizeof(uint64_t); |
6263 | 323 | } |
6264 | 44.4k | mb++; |
6265 | 44.4k | } |
6266 | 859 | _TIFFfreeExt(tif, origdir); |
6267 | 859 | *pdir = dir; |
6268 | 859 | return dircount16; |
6269 | 859 | } |
6270 | | |
6271 | | /* |
6272 | | * Fetch a tag that is not handled by special case code. |
6273 | | */ |
6274 | | static int TIFFFetchNormalTag(TIFF *tif, TIFFDirEntry *dp, int recover) |
6275 | 18.9k | { |
6276 | 18.9k | static const char module[] = "TIFFFetchNormalTag"; |
6277 | 18.9k | enum TIFFReadDirEntryErr err; |
6278 | 18.9k | uint32_t fii; |
6279 | 18.9k | const TIFFField *fip = NULL; |
6280 | 18.9k | TIFFReadDirectoryFindFieldInfo(tif, dp->tdir_tag, &fii); |
6281 | 18.9k | if (fii == FAILED_FII) |
6282 | 0 | { |
6283 | 0 | TIFFErrorExtR(tif, "TIFFFetchNormalTag", |
6284 | 0 | "No definition found for tag %" PRIu16, dp->tdir_tag); |
6285 | 0 | return 0; |
6286 | 0 | } |
6287 | 18.9k | fip = tif->tif_fields[fii]; |
6288 | 18.9k | assert(fip != NULL); /* should not happen */ |
6289 | 18.9k | assert(fip->set_field_type != |
6290 | 18.9k | TIFF_SETGET_OTHER); /* if so, we shouldn't arrive here but deal with |
6291 | | this in specialized code */ |
6292 | 18.9k | assert(fip->set_field_type != |
6293 | 18.9k | TIFF_SETGET_INT); /* if so, we shouldn't arrive here as this is only |
6294 | | the case for pseudo-tags */ |
6295 | 18.9k | err = TIFFReadDirEntryErrOk; |
6296 | 18.9k | switch (fip->set_field_type) |
6297 | 18.9k | { |
6298 | 12.8k | case TIFF_SETGET_UNDEFINED: |
6299 | 12.8k | TIFFErrorExtR( |
6300 | 12.8k | tif, "TIFFFetchNormalTag", |
6301 | 12.8k | "Defined set_field_type of custom tag %u (%s) is " |
6302 | 12.8k | "TIFF_SETGET_UNDEFINED and thus tag is not read from file", |
6303 | 12.8k | fip->field_tag, fip->field_name); |
6304 | 12.8k | break; |
6305 | 236 | case TIFF_SETGET_ASCII: |
6306 | 236 | { |
6307 | 236 | uint8_t *data; |
6308 | 236 | assert(fip->field_passcount == 0); |
6309 | 236 | err = TIFFReadDirEntryByteArray(tif, dp, &data); |
6310 | 236 | if (err == TIFFReadDirEntryErrOk) |
6311 | 91 | { |
6312 | 91 | size_t mb = 0; |
6313 | 91 | int n; |
6314 | 91 | if (data != NULL) |
6315 | 89 | { |
6316 | 89 | if (dp->tdir_count > 0 && data[dp->tdir_count - 1] == 0) |
6317 | 58 | { |
6318 | | /* optimization: if data is known to be 0 terminated, we |
6319 | | * can use strlen() */ |
6320 | 58 | mb = strlen((const char *)data); |
6321 | 58 | } |
6322 | 31 | else |
6323 | 31 | { |
6324 | | /* general case. equivalent to non-portable */ |
6325 | | /* mb = strnlen((const char*)data, |
6326 | | * (uint32_t)dp->tdir_count); */ |
6327 | 31 | uint8_t *ma = data; |
6328 | 278 | while (mb < (uint32_t)dp->tdir_count) |
6329 | 259 | { |
6330 | 259 | if (*ma == 0) |
6331 | 12 | break; |
6332 | 247 | ma++; |
6333 | 247 | mb++; |
6334 | 247 | } |
6335 | 31 | } |
6336 | 89 | } |
6337 | 91 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
6338 | 0 | { |
6339 | 0 | if (data != NULL) |
6340 | 0 | _TIFFfreeExt(tif, data); |
6341 | 0 | return (0); |
6342 | 0 | } |
6343 | 91 | if (mb + 1 < (uint32_t)dp->tdir_count) |
6344 | 35 | TIFFWarningExtR( |
6345 | 35 | tif, module, |
6346 | 35 | "ASCII value for tag \"%s\" contains null byte in " |
6347 | 35 | "value; value incorrectly truncated during reading due " |
6348 | 35 | "to implementation limitations", |
6349 | 35 | fip->field_name); |
6350 | 56 | else if (mb + 1 > (uint32_t)dp->tdir_count) |
6351 | 21 | { |
6352 | 21 | uint8_t *o; |
6353 | 21 | TIFFWarningExtR(tif, module, |
6354 | 21 | "ASCII value for tag \"%s\" does not end " |
6355 | 21 | "in null byte. Forcing it to be null", |
6356 | 21 | fip->field_name); |
6357 | | /* TIFFReadDirEntryArrayWithLimit() ensures this can't be |
6358 | | * larger than MAX_SIZE_TAG_DATA */ |
6359 | 21 | assert((uint32_t)dp->tdir_count + 1 == dp->tdir_count + 1); |
6360 | 21 | o = |
6361 | 21 | _TIFFmallocExt(tif, (uint32_t)dp->tdir_count + 1); |
6362 | 21 | if (o == NULL) |
6363 | 0 | { |
6364 | 0 | if (data != NULL) |
6365 | 0 | _TIFFfreeExt(tif, data); |
6366 | 0 | return (0); |
6367 | 0 | } |
6368 | 21 | if (dp->tdir_count > 0) |
6369 | 19 | { |
6370 | 19 | _TIFFmemcpy(o, data, (uint32_t)dp->tdir_count); |
6371 | 19 | } |
6372 | 21 | o[(uint32_t)dp->tdir_count] = 0; |
6373 | 21 | if (data != 0) |
6374 | 19 | _TIFFfreeExt(tif, data); |
6375 | 21 | data = o; |
6376 | 21 | } |
6377 | 91 | n = TIFFSetField(tif, dp->tdir_tag, data); |
6378 | 91 | if (data != 0) |
6379 | 91 | _TIFFfreeExt(tif, data); |
6380 | 91 | if (!n) |
6381 | 0 | return (0); |
6382 | 91 | } |
6383 | 236 | } |
6384 | 236 | break; |
6385 | 236 | case TIFF_SETGET_UINT8: |
6386 | 31 | { |
6387 | 31 | uint8_t data = 0; |
6388 | 31 | assert(fip->field_readcount == 1); |
6389 | 31 | assert(fip->field_passcount == 0); |
6390 | 31 | err = TIFFReadDirEntryByte(tif, dp, &data); |
6391 | 31 | if (err == TIFFReadDirEntryErrOk) |
6392 | 9 | { |
6393 | 9 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
6394 | 0 | return (0); |
6395 | 9 | } |
6396 | 31 | } |
6397 | 31 | break; |
6398 | 31 | case TIFF_SETGET_SINT8: |
6399 | 0 | { |
6400 | 0 | int8_t data = 0; |
6401 | 0 | assert(fip->field_readcount == 1); |
6402 | 0 | assert(fip->field_passcount == 0); |
6403 | 0 | err = TIFFReadDirEntrySbyte(tif, dp, &data); |
6404 | 0 | if (err == TIFFReadDirEntryErrOk) |
6405 | 0 | { |
6406 | 0 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
6407 | 0 | return (0); |
6408 | 0 | } |
6409 | 0 | } |
6410 | 0 | break; |
6411 | 1.06k | case TIFF_SETGET_UINT16: |
6412 | 1.06k | { |
6413 | 1.06k | uint16_t data; |
6414 | 1.06k | assert(fip->field_readcount == 1); |
6415 | 1.06k | assert(fip->field_passcount == 0); |
6416 | 1.06k | err = TIFFReadDirEntryShort(tif, dp, &data); |
6417 | 1.06k | if (err == TIFFReadDirEntryErrOk) |
6418 | 933 | { |
6419 | 933 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
6420 | 13 | return (0); |
6421 | 933 | } |
6422 | 1.06k | } |
6423 | 1.05k | break; |
6424 | 1.05k | case TIFF_SETGET_SINT16: |
6425 | 0 | { |
6426 | 0 | int16_t data; |
6427 | 0 | assert(fip->field_readcount == 1); |
6428 | 0 | assert(fip->field_passcount == 0); |
6429 | 0 | err = TIFFReadDirEntrySshort(tif, dp, &data); |
6430 | 0 | if (err == TIFFReadDirEntryErrOk) |
6431 | 0 | { |
6432 | 0 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
6433 | 0 | return (0); |
6434 | 0 | } |
6435 | 0 | } |
6436 | 0 | break; |
6437 | 1.70k | case TIFF_SETGET_UINT32: |
6438 | 1.70k | { |
6439 | 1.70k | uint32_t data; |
6440 | 1.70k | assert(fip->field_readcount == 1); |
6441 | 1.70k | assert(fip->field_passcount == 0); |
6442 | 1.70k | err = TIFFReadDirEntryLong(tif, dp, &data); |
6443 | 1.70k | if (err == TIFFReadDirEntryErrOk) |
6444 | 1.64k | { |
6445 | 1.64k | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
6446 | 1 | return (0); |
6447 | 1.64k | } |
6448 | 1.70k | } |
6449 | 1.70k | break; |
6450 | 1.70k | case TIFF_SETGET_SINT32: |
6451 | 0 | { |
6452 | 0 | int32_t data; |
6453 | 0 | assert(fip->field_readcount == 1); |
6454 | 0 | assert(fip->field_passcount == 0); |
6455 | 0 | err = TIFFReadDirEntrySlong(tif, dp, &data); |
6456 | 0 | if (err == TIFFReadDirEntryErrOk) |
6457 | 0 | { |
6458 | 0 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
6459 | 0 | return (0); |
6460 | 0 | } |
6461 | 0 | } |
6462 | 0 | break; |
6463 | 0 | case TIFF_SETGET_UINT64: |
6464 | 0 | { |
6465 | 0 | uint64_t data; |
6466 | 0 | assert(fip->field_readcount == 1); |
6467 | 0 | assert(fip->field_passcount == 0); |
6468 | 0 | err = TIFFReadDirEntryLong8(tif, dp, &data); |
6469 | 0 | if (err == TIFFReadDirEntryErrOk) |
6470 | 0 | { |
6471 | 0 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
6472 | 0 | return 0; |
6473 | 0 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
6474 | 0 | return (0); |
6475 | 0 | } |
6476 | 0 | } |
6477 | 0 | break; |
6478 | 0 | case TIFF_SETGET_SINT64: |
6479 | 0 | { |
6480 | 0 | int64_t data; |
6481 | 0 | assert(fip->field_readcount == 1); |
6482 | 0 | assert(fip->field_passcount == 0); |
6483 | 0 | err = TIFFReadDirEntrySlong8(tif, dp, &data); |
6484 | 0 | if (err == TIFFReadDirEntryErrOk) |
6485 | 0 | { |
6486 | 0 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
6487 | 0 | return 0; |
6488 | 0 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
6489 | 0 | return (0); |
6490 | 0 | } |
6491 | 0 | } |
6492 | 0 | break; |
6493 | 190 | case TIFF_SETGET_FLOAT: |
6494 | 190 | { |
6495 | 190 | float data; |
6496 | 190 | assert(fip->field_readcount == 1); |
6497 | 190 | assert(fip->field_passcount == 0); |
6498 | 190 | err = TIFFReadDirEntryFloat(tif, dp, &data); |
6499 | 190 | if (err == TIFFReadDirEntryErrOk) |
6500 | 100 | { |
6501 | 100 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
6502 | 0 | return 0; |
6503 | 100 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
6504 | 2 | return (0); |
6505 | 100 | } |
6506 | 190 | } |
6507 | 188 | break; |
6508 | 188 | case TIFF_SETGET_DOUBLE: |
6509 | 10 | { |
6510 | 10 | double data; |
6511 | 10 | assert(fip->field_readcount == 1); |
6512 | 10 | assert(fip->field_passcount == 0); |
6513 | 10 | err = TIFFReadDirEntryDouble(tif, dp, &data); |
6514 | 10 | if (err == TIFFReadDirEntryErrOk) |
6515 | 5 | { |
6516 | 5 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
6517 | 0 | return 0; |
6518 | 5 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
6519 | 0 | return (0); |
6520 | 5 | } |
6521 | 10 | } |
6522 | 10 | break; |
6523 | 40 | case TIFF_SETGET_IFD8: |
6524 | 40 | { |
6525 | 40 | uint64_t data; |
6526 | 40 | assert(fip->field_readcount == 1); |
6527 | 40 | assert(fip->field_passcount == 0); |
6528 | 40 | err = TIFFReadDirEntryIfd8(tif, dp, &data); |
6529 | 40 | if (err == TIFFReadDirEntryErrOk) |
6530 | 26 | { |
6531 | 26 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
6532 | 0 | return 0; |
6533 | 26 | if (!TIFFSetField(tif, dp->tdir_tag, data)) |
6534 | 6 | return (0); |
6535 | 26 | } |
6536 | 40 | } |
6537 | 34 | break; |
6538 | 96 | case TIFF_SETGET_UINT16_PAIR: |
6539 | 96 | { |
6540 | 96 | uint16_t *data; |
6541 | 96 | assert(fip->field_readcount == 2); |
6542 | 96 | assert(fip->field_passcount == 0); |
6543 | 96 | if (dp->tdir_count != 2) |
6544 | 26 | { |
6545 | 26 | TIFFWarningExtR(tif, module, |
6546 | 26 | "incorrect count for field \"%s\", expected 2, " |
6547 | 26 | "got %" PRIu64, |
6548 | 26 | fip->field_name, dp->tdir_count); |
6549 | 26 | return (0); |
6550 | 26 | } |
6551 | 70 | err = TIFFReadDirEntryShortArray(tif, dp, &data); |
6552 | 70 | if (err == TIFFReadDirEntryErrOk) |
6553 | 60 | { |
6554 | 60 | int m; |
6555 | 60 | assert(data); /* avoid CLang static Analyzer false positive */ |
6556 | 60 | m = TIFFSetField(tif, dp->tdir_tag, data[0], data[1]); |
6557 | 60 | _TIFFfreeExt(tif, data); |
6558 | 60 | if (!m) |
6559 | 0 | return (0); |
6560 | 60 | } |
6561 | 70 | } |
6562 | 70 | break; |
6563 | 70 | case TIFF_SETGET_C0_UINT8: |
6564 | 17 | { |
6565 | 17 | uint8_t *data; |
6566 | 17 | assert(fip->field_readcount >= 1); |
6567 | 17 | assert(fip->field_passcount == 0); |
6568 | 17 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
6569 | 9 | { |
6570 | 9 | TIFFWarningExtR(tif, module, |
6571 | 9 | "incorrect count for field \"%s\", expected " |
6572 | 9 | "%d, got %" PRIu64, |
6573 | 9 | fip->field_name, (int)fip->field_readcount, |
6574 | 9 | dp->tdir_count); |
6575 | 9 | return (0); |
6576 | 9 | } |
6577 | 8 | else |
6578 | 8 | { |
6579 | 8 | err = TIFFReadDirEntryByteArray(tif, dp, &data); |
6580 | 8 | if (err == TIFFReadDirEntryErrOk) |
6581 | 8 | { |
6582 | 8 | int m; |
6583 | 8 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
6584 | 0 | { |
6585 | 0 | if (data != 0) |
6586 | 0 | _TIFFfreeExt(tif, data); |
6587 | 0 | return 0; |
6588 | 0 | } |
6589 | 8 | m = TIFFSetField(tif, dp->tdir_tag, data); |
6590 | 8 | if (data != 0) |
6591 | 8 | _TIFFfreeExt(tif, data); |
6592 | 8 | if (!m) |
6593 | 0 | return (0); |
6594 | 8 | } |
6595 | 8 | } |
6596 | 17 | } |
6597 | 8 | break; |
6598 | 8 | case TIFF_SETGET_C0_SINT8: |
6599 | 0 | { |
6600 | 0 | int8_t *data; |
6601 | 0 | assert(fip->field_readcount >= 1); |
6602 | 0 | assert(fip->field_passcount == 0); |
6603 | 0 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
6604 | 0 | { |
6605 | 0 | TIFFWarningExtR(tif, module, |
6606 | 0 | "incorrect count for field \"%s\", expected " |
6607 | 0 | "%d, got %" PRIu64, |
6608 | 0 | fip->field_name, (int)fip->field_readcount, |
6609 | 0 | dp->tdir_count); |
6610 | 0 | return (0); |
6611 | 0 | } |
6612 | 0 | else |
6613 | 0 | { |
6614 | 0 | err = TIFFReadDirEntrySbyteArray(tif, dp, &data); |
6615 | 0 | if (err == TIFFReadDirEntryErrOk) |
6616 | 0 | { |
6617 | 0 | int m; |
6618 | 0 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
6619 | 0 | { |
6620 | 0 | if (data != 0) |
6621 | 0 | _TIFFfreeExt(tif, data); |
6622 | 0 | return 0; |
6623 | 0 | } |
6624 | 0 | m = TIFFSetField(tif, dp->tdir_tag, data); |
6625 | 0 | if (data != 0) |
6626 | 0 | _TIFFfreeExt(tif, data); |
6627 | 0 | if (!m) |
6628 | 0 | return (0); |
6629 | 0 | } |
6630 | 0 | } |
6631 | 0 | } |
6632 | 0 | break; |
6633 | 11 | case TIFF_SETGET_C0_UINT16: |
6634 | 11 | { |
6635 | 11 | uint16_t *data; |
6636 | 11 | assert(fip->field_readcount >= 1); |
6637 | 11 | assert(fip->field_passcount == 0); |
6638 | 11 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
6639 | 11 | { |
6640 | 11 | TIFFWarningExtR(tif, module, |
6641 | 11 | "incorrect count for field \"%s\", expected " |
6642 | 11 | "%d, got %" PRIu64, |
6643 | 11 | fip->field_name, (int)fip->field_readcount, |
6644 | 11 | dp->tdir_count); |
6645 | 11 | return (0); |
6646 | 11 | } |
6647 | 0 | else |
6648 | 0 | { |
6649 | 0 | err = TIFFReadDirEntryShortArray(tif, dp, &data); |
6650 | 0 | if (err == TIFFReadDirEntryErrOk) |
6651 | 0 | { |
6652 | 0 | int m; |
6653 | 0 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
6654 | 0 | { |
6655 | 0 | if (data != 0) |
6656 | 0 | _TIFFfreeExt(tif, data); |
6657 | 0 | return 0; |
6658 | 0 | } |
6659 | 0 | m = TIFFSetField(tif, dp->tdir_tag, data); |
6660 | 0 | if (data != 0) |
6661 | 0 | _TIFFfreeExt(tif, data); |
6662 | 0 | if (!m) |
6663 | 0 | return (0); |
6664 | 0 | } |
6665 | 0 | } |
6666 | 11 | } |
6667 | 0 | break; |
6668 | 0 | case TIFF_SETGET_C0_SINT16: |
6669 | 0 | { |
6670 | 0 | int16_t *data; |
6671 | 0 | assert(fip->field_readcount >= 1); |
6672 | 0 | assert(fip->field_passcount == 0); |
6673 | 0 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
6674 | 0 | { |
6675 | 0 | TIFFWarningExtR(tif, module, |
6676 | 0 | "incorrect count for field \"%s\", expected " |
6677 | 0 | "%d, got %" PRIu64, |
6678 | 0 | fip->field_name, (int)fip->field_readcount, |
6679 | 0 | dp->tdir_count); |
6680 | 0 | return (0); |
6681 | 0 | } |
6682 | 0 | else |
6683 | 0 | { |
6684 | 0 | err = TIFFReadDirEntrySshortArray(tif, dp, &data); |
6685 | 0 | if (err == TIFFReadDirEntryErrOk) |
6686 | 0 | { |
6687 | 0 | int m; |
6688 | 0 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
6689 | 0 | { |
6690 | 0 | if (data != 0) |
6691 | 0 | _TIFFfreeExt(tif, data); |
6692 | 0 | return 0; |
6693 | 0 | } |
6694 | 0 | m = TIFFSetField(tif, dp->tdir_tag, data); |
6695 | 0 | if (data != 0) |
6696 | 0 | _TIFFfreeExt(tif, data); |
6697 | 0 | if (!m) |
6698 | 0 | return (0); |
6699 | 0 | } |
6700 | 0 | } |
6701 | 0 | } |
6702 | 0 | break; |
6703 | 14 | case TIFF_SETGET_C0_UINT32: |
6704 | 14 | { |
6705 | 14 | uint32_t *data; |
6706 | 14 | assert(fip->field_readcount >= 1); |
6707 | 14 | assert(fip->field_passcount == 0); |
6708 | 14 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
6709 | 5 | { |
6710 | 5 | TIFFWarningExtR(tif, module, |
6711 | 5 | "incorrect count for field \"%s\", expected " |
6712 | 5 | "%d, got %" PRIu64, |
6713 | 5 | fip->field_name, (int)fip->field_readcount, |
6714 | 5 | dp->tdir_count); |
6715 | 5 | return (0); |
6716 | 5 | } |
6717 | 9 | else |
6718 | 9 | { |
6719 | 9 | err = TIFFReadDirEntryLongArray(tif, dp, &data); |
6720 | 9 | if (err == TIFFReadDirEntryErrOk) |
6721 | 3 | { |
6722 | 3 | int m; |
6723 | 3 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
6724 | 0 | { |
6725 | 0 | if (data != 0) |
6726 | 0 | _TIFFfreeExt(tif, data); |
6727 | 0 | return 0; |
6728 | 0 | } |
6729 | 3 | m = TIFFSetField(tif, dp->tdir_tag, data); |
6730 | 3 | if (data != 0) |
6731 | 3 | _TIFFfreeExt(tif, data); |
6732 | 3 | if (!m) |
6733 | 0 | return (0); |
6734 | 3 | } |
6735 | 9 | } |
6736 | 14 | } |
6737 | 9 | break; |
6738 | 9 | case TIFF_SETGET_C0_SINT32: |
6739 | 0 | { |
6740 | 0 | int32_t *data; |
6741 | 0 | assert(fip->field_readcount >= 1); |
6742 | 0 | assert(fip->field_passcount == 0); |
6743 | 0 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
6744 | 0 | { |
6745 | 0 | TIFFWarningExtR(tif, module, |
6746 | 0 | "incorrect count for field \"%s\", expected " |
6747 | 0 | "%d, got %" PRIu64, |
6748 | 0 | fip->field_name, (int)fip->field_readcount, |
6749 | 0 | dp->tdir_count); |
6750 | 0 | return (0); |
6751 | 0 | } |
6752 | 0 | else |
6753 | 0 | { |
6754 | 0 | err = TIFFReadDirEntrySlongArray(tif, dp, &data); |
6755 | 0 | if (err == TIFFReadDirEntryErrOk) |
6756 | 0 | { |
6757 | 0 | int m; |
6758 | 0 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
6759 | 0 | { |
6760 | 0 | if (data != 0) |
6761 | 0 | _TIFFfreeExt(tif, data); |
6762 | 0 | return 0; |
6763 | 0 | } |
6764 | 0 | m = TIFFSetField(tif, dp->tdir_tag, data); |
6765 | 0 | if (data != 0) |
6766 | 0 | _TIFFfreeExt(tif, data); |
6767 | 0 | if (!m) |
6768 | 0 | return (0); |
6769 | 0 | } |
6770 | 0 | } |
6771 | 0 | } |
6772 | 0 | break; |
6773 | 0 | case TIFF_SETGET_C0_UINT64: |
6774 | 0 | { |
6775 | 0 | uint64_t *data; |
6776 | 0 | assert(fip->field_readcount >= 1); |
6777 | 0 | assert(fip->field_passcount == 0); |
6778 | 0 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
6779 | 0 | { |
6780 | 0 | TIFFWarningExtR(tif, module, |
6781 | 0 | "incorrect count for field \"%s\", expected " |
6782 | 0 | "%d, got %" PRIu64, |
6783 | 0 | fip->field_name, (int)fip->field_readcount, |
6784 | 0 | dp->tdir_count); |
6785 | 0 | return (0); |
6786 | 0 | } |
6787 | 0 | else |
6788 | 0 | { |
6789 | 0 | err = TIFFReadDirEntryLong8Array(tif, dp, &data); |
6790 | 0 | if (err == TIFFReadDirEntryErrOk) |
6791 | 0 | { |
6792 | 0 | int m; |
6793 | 0 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
6794 | 0 | { |
6795 | 0 | if (data != 0) |
6796 | 0 | _TIFFfreeExt(tif, data); |
6797 | 0 | return 0; |
6798 | 0 | } |
6799 | 0 | m = TIFFSetField(tif, dp->tdir_tag, data); |
6800 | 0 | if (data != 0) |
6801 | 0 | _TIFFfreeExt(tif, data); |
6802 | 0 | if (!m) |
6803 | 0 | return (0); |
6804 | 0 | } |
6805 | 0 | } |
6806 | 0 | } |
6807 | 0 | break; |
6808 | 0 | case TIFF_SETGET_C0_SINT64: |
6809 | 0 | { |
6810 | 0 | int64_t *data; |
6811 | 0 | assert(fip->field_readcount >= 1); |
6812 | 0 | assert(fip->field_passcount == 0); |
6813 | 0 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
6814 | 0 | { |
6815 | 0 | TIFFWarningExtR(tif, module, |
6816 | 0 | "incorrect count for field \"%s\", expected " |
6817 | 0 | "%d, got %" PRIu64, |
6818 | 0 | fip->field_name, (int)fip->field_readcount, |
6819 | 0 | dp->tdir_count); |
6820 | 0 | return (0); |
6821 | 0 | } |
6822 | 0 | else |
6823 | 0 | { |
6824 | 0 | err = TIFFReadDirEntrySlong8Array(tif, dp, &data); |
6825 | 0 | if (err == TIFFReadDirEntryErrOk) |
6826 | 0 | { |
6827 | 0 | int m; |
6828 | 0 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
6829 | 0 | { |
6830 | 0 | if (data != 0) |
6831 | 0 | _TIFFfreeExt(tif, data); |
6832 | 0 | return 0; |
6833 | 0 | } |
6834 | 0 | m = TIFFSetField(tif, dp->tdir_tag, data); |
6835 | 0 | if (data != 0) |
6836 | 0 | _TIFFfreeExt(tif, data); |
6837 | 0 | if (!m) |
6838 | 0 | return (0); |
6839 | 0 | } |
6840 | 0 | } |
6841 | 0 | } |
6842 | 0 | break; |
6843 | 69 | case TIFF_SETGET_C0_FLOAT: |
6844 | 69 | { |
6845 | 69 | float *data; |
6846 | 69 | assert(fip->field_readcount >= 1); |
6847 | 69 | assert(fip->field_passcount == 0); |
6848 | 69 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
6849 | 20 | { |
6850 | 20 | TIFFWarningExtR(tif, module, |
6851 | 20 | "incorrect count for field \"%s\", expected " |
6852 | 20 | "%d, got %" PRIu64, |
6853 | 20 | fip->field_name, (int)fip->field_readcount, |
6854 | 20 | dp->tdir_count); |
6855 | 20 | return (0); |
6856 | 20 | } |
6857 | 49 | else |
6858 | 49 | { |
6859 | 49 | err = TIFFReadDirEntryFloatArray(tif, dp, &data); |
6860 | 49 | if (err == TIFFReadDirEntryErrOk) |
6861 | 34 | { |
6862 | 34 | int m; |
6863 | 34 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
6864 | 0 | { |
6865 | 0 | if (data != 0) |
6866 | 0 | _TIFFfreeExt(tif, data); |
6867 | 0 | return 0; |
6868 | 0 | } |
6869 | 34 | m = TIFFSetField(tif, dp->tdir_tag, data); |
6870 | 34 | if (data != 0) |
6871 | 34 | _TIFFfreeExt(tif, data); |
6872 | 34 | if (!m) |
6873 | 0 | return (0); |
6874 | 34 | } |
6875 | 49 | } |
6876 | 69 | } |
6877 | 49 | break; |
6878 | | /*--: Rational2Double: Extend for Double Arrays and Rational-Arrays read |
6879 | | * into Double-Arrays. */ |
6880 | 49 | case TIFF_SETGET_C0_DOUBLE: |
6881 | 0 | { |
6882 | 0 | double *data; |
6883 | 0 | assert(fip->field_readcount >= 1); |
6884 | 0 | assert(fip->field_passcount == 0); |
6885 | 0 | if (dp->tdir_count != (uint64_t)fip->field_readcount) |
6886 | 0 | { |
6887 | 0 | TIFFWarningExtR(tif, module, |
6888 | 0 | "incorrect count for field \"%s\", expected " |
6889 | 0 | "%d, got %" PRIu64, |
6890 | 0 | fip->field_name, (int)fip->field_readcount, |
6891 | 0 | dp->tdir_count); |
6892 | 0 | return (0); |
6893 | 0 | } |
6894 | 0 | else |
6895 | 0 | { |
6896 | 0 | err = TIFFReadDirEntryDoubleArray(tif, dp, &data); |
6897 | 0 | if (err == TIFFReadDirEntryErrOk) |
6898 | 0 | { |
6899 | 0 | int m; |
6900 | 0 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
6901 | 0 | { |
6902 | 0 | if (data != 0) |
6903 | 0 | _TIFFfreeExt(tif, data); |
6904 | 0 | return 0; |
6905 | 0 | } |
6906 | 0 | m = TIFFSetField(tif, dp->tdir_tag, data); |
6907 | 0 | if (data != 0) |
6908 | 0 | _TIFFfreeExt(tif, data); |
6909 | 0 | if (!m) |
6910 | 0 | return (0); |
6911 | 0 | } |
6912 | 0 | } |
6913 | 0 | } |
6914 | 0 | break; |
6915 | 11 | case TIFF_SETGET_C16_ASCII: |
6916 | 11 | { |
6917 | 11 | uint8_t *data; |
6918 | 11 | assert(fip->field_readcount == TIFF_VARIABLE); |
6919 | 11 | assert(fip->field_passcount == 1); |
6920 | 11 | if (dp->tdir_count > 0xFFFF) |
6921 | 1 | err = TIFFReadDirEntryErrCount; |
6922 | 10 | else |
6923 | 10 | { |
6924 | 10 | err = TIFFReadDirEntryByteArray(tif, dp, &data); |
6925 | 10 | if (err == TIFFReadDirEntryErrOk) |
6926 | 5 | { |
6927 | 5 | int m; |
6928 | 5 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
6929 | 0 | { |
6930 | 0 | if (data != 0) |
6931 | 0 | _TIFFfreeExt(tif, data); |
6932 | 0 | return 0; |
6933 | 0 | } |
6934 | 5 | if (data != 0 && dp->tdir_count > 0 && |
6935 | 4 | data[dp->tdir_count - 1] != '\0') |
6936 | 3 | { |
6937 | 3 | uint8_t *o; |
6938 | 3 | TIFFWarningExtR(tif, module, |
6939 | 3 | "ASCII value for ASCII array tag " |
6940 | 3 | "\"%s\" does not end in null " |
6941 | 3 | "byte. Forcing it to be null", |
6942 | 3 | fip->field_name); |
6943 | | /* Enlarge buffer and add terminating null. */ |
6944 | 3 | o = |
6945 | 3 | _TIFFmallocExt(tif, (uint32_t)dp->tdir_count + 1); |
6946 | 3 | if (o == NULL) |
6947 | 0 | { |
6948 | 0 | if (data != NULL) |
6949 | 0 | _TIFFfreeExt(tif, data); |
6950 | 0 | return (0); |
6951 | 0 | } |
6952 | 3 | if (dp->tdir_count > 0) |
6953 | 3 | { |
6954 | 3 | _TIFFmemcpy(o, data, (uint32_t)dp->tdir_count); |
6955 | 3 | } |
6956 | 3 | o[(uint32_t)dp->tdir_count] = 0; |
6957 | 3 | dp->tdir_count++; /* Increment for added null. */ |
6958 | 3 | if (data != 0) |
6959 | 3 | _TIFFfreeExt(tif, data); |
6960 | 3 | data = o; |
6961 | 3 | } |
6962 | 5 | m = TIFFSetField(tif, dp->tdir_tag, |
6963 | 5 | (uint16_t)(dp->tdir_count), data); |
6964 | 5 | if (data != 0) |
6965 | 4 | _TIFFfreeExt(tif, data); |
6966 | 5 | if (!m) |
6967 | 1 | return (0); |
6968 | 5 | } |
6969 | 10 | } |
6970 | 11 | } |
6971 | 10 | break; |
6972 | 13 | case TIFF_SETGET_C16_UINT8: |
6973 | 13 | { |
6974 | 13 | uint8_t *data; |
6975 | 13 | assert(fip->field_readcount == TIFF_VARIABLE); |
6976 | 13 | assert(fip->field_passcount == 1); |
6977 | 13 | if (dp->tdir_count > 0xFFFF) |
6978 | 9 | err = TIFFReadDirEntryErrCount; |
6979 | 4 | else |
6980 | 4 | { |
6981 | 4 | err = TIFFReadDirEntryByteArray(tif, dp, &data); |
6982 | 4 | if (err == TIFFReadDirEntryErrOk) |
6983 | 0 | { |
6984 | 0 | int m; |
6985 | 0 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
6986 | 0 | { |
6987 | 0 | if (data != 0) |
6988 | 0 | _TIFFfreeExt(tif, data); |
6989 | 0 | return 0; |
6990 | 0 | } |
6991 | 0 | m = TIFFSetField(tif, dp->tdir_tag, |
6992 | 0 | (uint16_t)(dp->tdir_count), data); |
6993 | 0 | if (data != 0) |
6994 | 0 | _TIFFfreeExt(tif, data); |
6995 | 0 | if (!m) |
6996 | 0 | return (0); |
6997 | 0 | } |
6998 | 4 | } |
6999 | 13 | } |
7000 | 13 | break; |
7001 | 13 | case TIFF_SETGET_C16_SINT8: |
7002 | 0 | { |
7003 | 0 | int8_t *data; |
7004 | 0 | assert(fip->field_readcount == TIFF_VARIABLE); |
7005 | 0 | assert(fip->field_passcount == 1); |
7006 | 0 | if (dp->tdir_count > 0xFFFF) |
7007 | 0 | err = TIFFReadDirEntryErrCount; |
7008 | 0 | else |
7009 | 0 | { |
7010 | 0 | err = TIFFReadDirEntrySbyteArray(tif, dp, &data); |
7011 | 0 | if (err == TIFFReadDirEntryErrOk) |
7012 | 0 | { |
7013 | 0 | int m; |
7014 | 0 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7015 | 0 | { |
7016 | 0 | if (data != 0) |
7017 | 0 | _TIFFfreeExt(tif, data); |
7018 | 0 | return 0; |
7019 | 0 | } |
7020 | 0 | m = TIFFSetField(tif, dp->tdir_tag, |
7021 | 0 | (uint16_t)(dp->tdir_count), data); |
7022 | 0 | if (data != 0) |
7023 | 0 | _TIFFfreeExt(tif, data); |
7024 | 0 | if (!m) |
7025 | 0 | return (0); |
7026 | 0 | } |
7027 | 0 | } |
7028 | 0 | } |
7029 | 0 | break; |
7030 | 59 | case TIFF_SETGET_C16_UINT16: |
7031 | 59 | { |
7032 | 59 | uint16_t *data; |
7033 | 59 | assert(fip->field_readcount == TIFF_VARIABLE); |
7034 | 59 | assert(fip->field_passcount == 1); |
7035 | 59 | if (dp->tdir_count > 0xFFFF) |
7036 | 3 | err = TIFFReadDirEntryErrCount; |
7037 | 56 | else |
7038 | 56 | { |
7039 | 56 | err = TIFFReadDirEntryShortArray(tif, dp, &data); |
7040 | 56 | if (err == TIFFReadDirEntryErrOk) |
7041 | 38 | { |
7042 | 38 | int m; |
7043 | 38 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7044 | 0 | { |
7045 | 0 | if (data != 0) |
7046 | 0 | _TIFFfreeExt(tif, data); |
7047 | 0 | return 0; |
7048 | 0 | } |
7049 | 38 | m = TIFFSetField(tif, dp->tdir_tag, |
7050 | 38 | (uint16_t)(dp->tdir_count), data); |
7051 | 38 | if (data != 0) |
7052 | 34 | _TIFFfreeExt(tif, data); |
7053 | 38 | if (!m) |
7054 | 3 | return (0); |
7055 | 38 | } |
7056 | 56 | } |
7057 | 59 | } |
7058 | 56 | break; |
7059 | 56 | case TIFF_SETGET_C16_SINT16: |
7060 | 0 | { |
7061 | 0 | int16_t *data; |
7062 | 0 | assert(fip->field_readcount == TIFF_VARIABLE); |
7063 | 0 | assert(fip->field_passcount == 1); |
7064 | 0 | if (dp->tdir_count > 0xFFFF) |
7065 | 0 | err = TIFFReadDirEntryErrCount; |
7066 | 0 | else |
7067 | 0 | { |
7068 | 0 | err = TIFFReadDirEntrySshortArray(tif, dp, &data); |
7069 | 0 | if (err == TIFFReadDirEntryErrOk) |
7070 | 0 | { |
7071 | 0 | int m; |
7072 | 0 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7073 | 0 | { |
7074 | 0 | if (data != 0) |
7075 | 0 | _TIFFfreeExt(tif, data); |
7076 | 0 | return 0; |
7077 | 0 | } |
7078 | 0 | m = TIFFSetField(tif, dp->tdir_tag, |
7079 | 0 | (uint16_t)(dp->tdir_count), data); |
7080 | 0 | if (data != 0) |
7081 | 0 | _TIFFfreeExt(tif, data); |
7082 | 0 | if (!m) |
7083 | 0 | return (0); |
7084 | 0 | } |
7085 | 0 | } |
7086 | 0 | } |
7087 | 0 | break; |
7088 | 77 | case TIFF_SETGET_C16_UINT32: |
7089 | 77 | { |
7090 | 77 | uint32_t *data; |
7091 | 77 | assert(fip->field_readcount == TIFF_VARIABLE); |
7092 | 77 | assert(fip->field_passcount == 1); |
7093 | 77 | if (dp->tdir_count > 0xFFFF) |
7094 | 4 | err = TIFFReadDirEntryErrCount; |
7095 | 73 | else |
7096 | 73 | { |
7097 | 73 | err = TIFFReadDirEntryLongArray(tif, dp, &data); |
7098 | 73 | if (err == TIFFReadDirEntryErrOk) |
7099 | 23 | { |
7100 | 23 | int m; |
7101 | 23 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7102 | 0 | { |
7103 | 0 | if (data != 0) |
7104 | 0 | _TIFFfreeExt(tif, data); |
7105 | 0 | return 0; |
7106 | 0 | } |
7107 | 23 | m = TIFFSetField(tif, dp->tdir_tag, |
7108 | 23 | (uint16_t)(dp->tdir_count), data); |
7109 | 23 | if (data != 0) |
7110 | 18 | _TIFFfreeExt(tif, data); |
7111 | 23 | if (!m) |
7112 | 5 | return (0); |
7113 | 23 | } |
7114 | 73 | } |
7115 | 77 | } |
7116 | 72 | break; |
7117 | 72 | case TIFF_SETGET_C16_SINT32: |
7118 | 0 | { |
7119 | 0 | int32_t *data; |
7120 | 0 | assert(fip->field_readcount == TIFF_VARIABLE); |
7121 | 0 | assert(fip->field_passcount == 1); |
7122 | 0 | if (dp->tdir_count > 0xFFFF) |
7123 | 0 | err = TIFFReadDirEntryErrCount; |
7124 | 0 | else |
7125 | 0 | { |
7126 | 0 | err = TIFFReadDirEntrySlongArray(tif, dp, &data); |
7127 | 0 | if (err == TIFFReadDirEntryErrOk) |
7128 | 0 | { |
7129 | 0 | int m; |
7130 | 0 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7131 | 0 | { |
7132 | 0 | if (data != 0) |
7133 | 0 | _TIFFfreeExt(tif, data); |
7134 | 0 | return 0; |
7135 | 0 | } |
7136 | 0 | m = TIFFSetField(tif, dp->tdir_tag, |
7137 | 0 | (uint16_t)(dp->tdir_count), data); |
7138 | 0 | if (data != 0) |
7139 | 0 | _TIFFfreeExt(tif, data); |
7140 | 0 | if (!m) |
7141 | 0 | return (0); |
7142 | 0 | } |
7143 | 0 | } |
7144 | 0 | } |
7145 | 0 | break; |
7146 | 0 | case TIFF_SETGET_C16_UINT64: |
7147 | 0 | { |
7148 | 0 | uint64_t *data; |
7149 | 0 | assert(fip->field_readcount == TIFF_VARIABLE); |
7150 | 0 | assert(fip->field_passcount == 1); |
7151 | 0 | if (dp->tdir_count > 0xFFFF) |
7152 | 0 | err = TIFFReadDirEntryErrCount; |
7153 | 0 | else |
7154 | 0 | { |
7155 | 0 | err = TIFFReadDirEntryLong8Array(tif, dp, &data); |
7156 | 0 | if (err == TIFFReadDirEntryErrOk) |
7157 | 0 | { |
7158 | 0 | int m; |
7159 | 0 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7160 | 0 | { |
7161 | 0 | if (data != 0) |
7162 | 0 | _TIFFfreeExt(tif, data); |
7163 | 0 | return 0; |
7164 | 0 | } |
7165 | 0 | m = TIFFSetField(tif, dp->tdir_tag, |
7166 | 0 | (uint16_t)(dp->tdir_count), data); |
7167 | 0 | if (data != 0) |
7168 | 0 | _TIFFfreeExt(tif, data); |
7169 | 0 | if (!m) |
7170 | 0 | return (0); |
7171 | 0 | } |
7172 | 0 | } |
7173 | 0 | } |
7174 | 0 | break; |
7175 | 0 | case TIFF_SETGET_C16_SINT64: |
7176 | 0 | { |
7177 | 0 | int64_t *data; |
7178 | 0 | assert(fip->field_readcount == TIFF_VARIABLE); |
7179 | 0 | assert(fip->field_passcount == 1); |
7180 | 0 | if (dp->tdir_count > 0xFFFF) |
7181 | 0 | err = TIFFReadDirEntryErrCount; |
7182 | 0 | else |
7183 | 0 | { |
7184 | 0 | err = TIFFReadDirEntrySlong8Array(tif, dp, &data); |
7185 | 0 | if (err == TIFFReadDirEntryErrOk) |
7186 | 0 | { |
7187 | 0 | int m; |
7188 | 0 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7189 | 0 | { |
7190 | 0 | if (data != 0) |
7191 | 0 | _TIFFfreeExt(tif, data); |
7192 | 0 | return 0; |
7193 | 0 | } |
7194 | 0 | m = TIFFSetField(tif, dp->tdir_tag, |
7195 | 0 | (uint16_t)(dp->tdir_count), data); |
7196 | 0 | if (data != 0) |
7197 | 0 | _TIFFfreeExt(tif, data); |
7198 | 0 | if (!m) |
7199 | 0 | return (0); |
7200 | 0 | } |
7201 | 0 | } |
7202 | 0 | } |
7203 | 0 | break; |
7204 | 90 | case TIFF_SETGET_C16_FLOAT: |
7205 | 90 | { |
7206 | 90 | float *data; |
7207 | 90 | assert(fip->field_readcount == TIFF_VARIABLE); |
7208 | 90 | assert(fip->field_passcount == 1); |
7209 | 90 | if (dp->tdir_count > 0xFFFF) |
7210 | 20 | err = TIFFReadDirEntryErrCount; |
7211 | 70 | else |
7212 | 70 | { |
7213 | 70 | err = TIFFReadDirEntryFloatArray(tif, dp, &data); |
7214 | 70 | if (err == TIFFReadDirEntryErrOk) |
7215 | 44 | { |
7216 | 44 | int m; |
7217 | 44 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7218 | 0 | { |
7219 | 0 | if (data != 0) |
7220 | 0 | _TIFFfreeExt(tif, data); |
7221 | 0 | return 0; |
7222 | 0 | } |
7223 | 44 | m = TIFFSetField(tif, dp->tdir_tag, |
7224 | 44 | (uint16_t)(dp->tdir_count), data); |
7225 | 44 | if (data != 0) |
7226 | 41 | _TIFFfreeExt(tif, data); |
7227 | 44 | if (!m) |
7228 | 3 | return (0); |
7229 | 44 | } |
7230 | 70 | } |
7231 | 90 | } |
7232 | 87 | break; |
7233 | 87 | case TIFF_SETGET_C16_DOUBLE: |
7234 | 0 | { |
7235 | 0 | double *data; |
7236 | 0 | assert(fip->field_readcount == TIFF_VARIABLE); |
7237 | 0 | assert(fip->field_passcount == 1); |
7238 | 0 | if (dp->tdir_count > 0xFFFF) |
7239 | 0 | err = TIFFReadDirEntryErrCount; |
7240 | 0 | else |
7241 | 0 | { |
7242 | 0 | err = TIFFReadDirEntryDoubleArray(tif, dp, &data); |
7243 | 0 | if (err == TIFFReadDirEntryErrOk) |
7244 | 0 | { |
7245 | 0 | int m; |
7246 | 0 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7247 | 0 | { |
7248 | 0 | if (data != 0) |
7249 | 0 | _TIFFfreeExt(tif, data); |
7250 | 0 | return 0; |
7251 | 0 | } |
7252 | 0 | m = TIFFSetField(tif, dp->tdir_tag, |
7253 | 0 | (uint16_t)(dp->tdir_count), data); |
7254 | 0 | if (data != 0) |
7255 | 0 | _TIFFfreeExt(tif, data); |
7256 | 0 | if (!m) |
7257 | 0 | return (0); |
7258 | 0 | } |
7259 | 0 | } |
7260 | 0 | } |
7261 | 0 | break; |
7262 | 28 | case TIFF_SETGET_C16_IFD8: |
7263 | 28 | { |
7264 | 28 | uint64_t *data; |
7265 | 28 | assert(fip->field_readcount == TIFF_VARIABLE); |
7266 | 28 | assert(fip->field_passcount == 1); |
7267 | 28 | if (dp->tdir_count > 0xFFFF) |
7268 | 8 | err = TIFFReadDirEntryErrCount; |
7269 | 20 | else |
7270 | 20 | { |
7271 | 20 | err = TIFFReadDirEntryIfd8Array(tif, dp, &data); |
7272 | 20 | if (err == TIFFReadDirEntryErrOk) |
7273 | 15 | { |
7274 | 15 | int m; |
7275 | 15 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7276 | 0 | { |
7277 | 0 | if (data != 0) |
7278 | 0 | _TIFFfreeExt(tif, data); |
7279 | 0 | return 0; |
7280 | 0 | } |
7281 | 15 | m = TIFFSetField(tif, dp->tdir_tag, |
7282 | 15 | (uint16_t)(dp->tdir_count), data); |
7283 | 15 | if (data != 0) |
7284 | 13 | _TIFFfreeExt(tif, data); |
7285 | 15 | if (!m) |
7286 | 0 | return (0); |
7287 | 15 | } |
7288 | 20 | } |
7289 | 28 | } |
7290 | 28 | break; |
7291 | 238 | case TIFF_SETGET_C32_ASCII: |
7292 | 238 | { |
7293 | 238 | uint8_t *data; |
7294 | 238 | assert(fip->field_readcount == TIFF_VARIABLE2); |
7295 | 238 | assert(fip->field_passcount == 1); |
7296 | 238 | err = TIFFReadDirEntryByteArray(tif, dp, &data); |
7297 | 238 | if (err == TIFFReadDirEntryErrOk) |
7298 | 86 | { |
7299 | 86 | int m; |
7300 | 86 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7301 | 0 | { |
7302 | 0 | if (data != 0) |
7303 | 0 | _TIFFfreeExt(tif, data); |
7304 | 0 | return 0; |
7305 | 0 | } |
7306 | 86 | if (data != 0 && dp->tdir_count > 0 && |
7307 | 77 | data[dp->tdir_count - 1] != '\0') |
7308 | 29 | { |
7309 | 29 | uint8_t *o; |
7310 | 29 | TIFFWarningExtR( |
7311 | 29 | tif, module, |
7312 | 29 | "ASCII value for ASCII array tag \"%s\" does not end " |
7313 | 29 | "in null byte. Forcing it to be null", |
7314 | 29 | fip->field_name); |
7315 | | /* Enlarge buffer and add terminating null. */ |
7316 | 29 | o = |
7317 | 29 | _TIFFmallocExt(tif, (uint32_t)dp->tdir_count + 1); |
7318 | 29 | if (o == NULL) |
7319 | 0 | { |
7320 | 0 | if (data != NULL) |
7321 | 0 | _TIFFfreeExt(tif, data); |
7322 | 0 | return (0); |
7323 | 0 | } |
7324 | 29 | if (dp->tdir_count > 0) |
7325 | 29 | { |
7326 | 29 | _TIFFmemcpy(o, data, (uint32_t)dp->tdir_count); |
7327 | 29 | } |
7328 | 29 | o[(uint32_t)dp->tdir_count] = 0; |
7329 | 29 | dp->tdir_count++; /* Increment for added null. */ |
7330 | 29 | if (data != 0) |
7331 | 29 | _TIFFfreeExt(tif, data); |
7332 | 29 | data = o; |
7333 | 29 | } |
7334 | 86 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
7335 | 86 | data); |
7336 | 86 | if (data != 0) |
7337 | 77 | _TIFFfreeExt(tif, data); |
7338 | 86 | if (!m) |
7339 | 0 | return (0); |
7340 | 86 | } |
7341 | 238 | } |
7342 | 238 | break; |
7343 | 435 | case TIFF_SETGET_C32_UINT8: |
7344 | 435 | { |
7345 | 435 | uint8_t *data; |
7346 | 435 | uint32_t count = 0; |
7347 | 435 | assert(fip->field_readcount == TIFF_VARIABLE2); |
7348 | 435 | assert(fip->field_passcount == 1); |
7349 | 435 | if (fip->field_tag == TIFFTAG_RICHTIFFIPTC && |
7350 | 3 | dp->tdir_type == TIFF_LONG) |
7351 | 2 | { |
7352 | | /* Adobe's software (wrongly) writes RichTIFFIPTC tag with |
7353 | | * data type LONG instead of UNDEFINED. Work around this |
7354 | | * frequently found issue */ |
7355 | 2 | void *origdata; |
7356 | 2 | err = TIFFReadDirEntryArray(tif, dp, &count, 4, &origdata); |
7357 | 2 | if ((err != TIFFReadDirEntryErrOk) || (origdata == 0)) |
7358 | 1 | { |
7359 | 1 | data = NULL; |
7360 | 1 | } |
7361 | 1 | else |
7362 | 1 | { |
7363 | 1 | if (tif->tif_flags & TIFF_SWAB) |
7364 | 1 | TIFFSwabArrayOfLong((uint32_t *)origdata, count); |
7365 | 1 | data = (uint8_t *)origdata; |
7366 | 1 | count = (uint32_t)(count * 4); |
7367 | 1 | } |
7368 | 2 | } |
7369 | 433 | else |
7370 | 433 | { |
7371 | 433 | err = TIFFReadDirEntryByteArray(tif, dp, &data); |
7372 | 433 | count = (uint32_t)(dp->tdir_count); |
7373 | 433 | } |
7374 | 435 | if (err == TIFFReadDirEntryErrOk) |
7375 | 149 | { |
7376 | 149 | int m; |
7377 | 149 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7378 | 0 | { |
7379 | 0 | if (data != 0) |
7380 | 0 | _TIFFfreeExt(tif, data); |
7381 | 0 | return 0; |
7382 | 0 | } |
7383 | 149 | m = TIFFSetField(tif, dp->tdir_tag, count, data); |
7384 | 149 | if (data != 0) |
7385 | 66 | _TIFFfreeExt(tif, data); |
7386 | 149 | if (!m) |
7387 | 83 | return (0); |
7388 | 149 | } |
7389 | 435 | } |
7390 | 352 | break; |
7391 | 352 | case TIFF_SETGET_C32_SINT8: |
7392 | 60 | { |
7393 | 60 | int8_t *data = NULL; |
7394 | 60 | assert(fip->field_readcount == TIFF_VARIABLE2); |
7395 | 60 | assert(fip->field_passcount == 1); |
7396 | 60 | err = TIFFReadDirEntrySbyteArray(tif, dp, &data); |
7397 | 60 | if (err == TIFFReadDirEntryErrOk) |
7398 | 8 | { |
7399 | 8 | int m; |
7400 | 8 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7401 | 0 | { |
7402 | 0 | if (data != 0) |
7403 | 0 | _TIFFfreeExt(tif, data); |
7404 | 0 | return 0; |
7405 | 0 | } |
7406 | 8 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
7407 | 8 | data); |
7408 | 8 | if (data != 0) |
7409 | 7 | _TIFFfreeExt(tif, data); |
7410 | 8 | if (!m) |
7411 | 1 | return (0); |
7412 | 8 | } |
7413 | 60 | } |
7414 | 59 | break; |
7415 | 535 | case TIFF_SETGET_C32_UINT16: |
7416 | 535 | { |
7417 | 535 | uint16_t *data; |
7418 | 535 | assert(fip->field_readcount == TIFF_VARIABLE2); |
7419 | 535 | assert(fip->field_passcount == 1); |
7420 | 535 | err = TIFFReadDirEntryShortArray(tif, dp, &data); |
7421 | 535 | if (err == TIFFReadDirEntryErrOk) |
7422 | 309 | { |
7423 | 309 | int m; |
7424 | 309 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7425 | 0 | { |
7426 | 0 | if (data != 0) |
7427 | 0 | _TIFFfreeExt(tif, data); |
7428 | 0 | return 0; |
7429 | 0 | } |
7430 | 309 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
7431 | 309 | data); |
7432 | 309 | if (data != 0) |
7433 | 294 | _TIFFfreeExt(tif, data); |
7434 | 309 | if (!m) |
7435 | 15 | return (0); |
7436 | 309 | } |
7437 | 535 | } |
7438 | 520 | break; |
7439 | 520 | case TIFF_SETGET_C32_SINT16: |
7440 | 123 | { |
7441 | 123 | int16_t *data = NULL; |
7442 | 123 | assert(fip->field_readcount == TIFF_VARIABLE2); |
7443 | 123 | assert(fip->field_passcount == 1); |
7444 | 123 | err = TIFFReadDirEntrySshortArray(tif, dp, &data); |
7445 | 123 | if (err == TIFFReadDirEntryErrOk) |
7446 | 40 | { |
7447 | 40 | int m; |
7448 | 40 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7449 | 0 | { |
7450 | 0 | if (data != 0) |
7451 | 0 | _TIFFfreeExt(tif, data); |
7452 | 0 | return 0; |
7453 | 0 | } |
7454 | 40 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
7455 | 40 | data); |
7456 | 40 | if (data != 0) |
7457 | 34 | _TIFFfreeExt(tif, data); |
7458 | 40 | if (!m) |
7459 | 6 | return (0); |
7460 | 40 | } |
7461 | 123 | } |
7462 | 117 | break; |
7463 | 274 | case TIFF_SETGET_C32_UINT32: |
7464 | 274 | { |
7465 | 274 | uint32_t *data; |
7466 | 274 | assert(fip->field_readcount == TIFF_VARIABLE2); |
7467 | 274 | assert(fip->field_passcount == 1); |
7468 | 274 | err = TIFFReadDirEntryLongArray(tif, dp, &data); |
7469 | 274 | if (err == TIFFReadDirEntryErrOk) |
7470 | 55 | { |
7471 | 55 | int m; |
7472 | 55 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7473 | 0 | { |
7474 | 0 | if (data != 0) |
7475 | 0 | _TIFFfreeExt(tif, data); |
7476 | 0 | return 0; |
7477 | 0 | } |
7478 | 55 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
7479 | 55 | data); |
7480 | 55 | if (data != 0) |
7481 | 44 | _TIFFfreeExt(tif, data); |
7482 | 55 | if (!m) |
7483 | 11 | return (0); |
7484 | 55 | } |
7485 | 274 | } |
7486 | 263 | break; |
7487 | 263 | case TIFF_SETGET_C32_SINT32: |
7488 | 50 | { |
7489 | 50 | int32_t *data = NULL; |
7490 | 50 | assert(fip->field_readcount == TIFF_VARIABLE2); |
7491 | 50 | assert(fip->field_passcount == 1); |
7492 | 50 | err = TIFFReadDirEntrySlongArray(tif, dp, &data); |
7493 | 50 | if (err == TIFFReadDirEntryErrOk) |
7494 | 14 | { |
7495 | 14 | int m; |
7496 | 14 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7497 | 0 | { |
7498 | 0 | if (data != 0) |
7499 | 0 | _TIFFfreeExt(tif, data); |
7500 | 0 | return 0; |
7501 | 0 | } |
7502 | 14 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
7503 | 14 | data); |
7504 | 14 | if (data != 0) |
7505 | 13 | _TIFFfreeExt(tif, data); |
7506 | 14 | if (!m) |
7507 | 1 | return (0); |
7508 | 14 | } |
7509 | 50 | } |
7510 | 49 | break; |
7511 | 70 | case TIFF_SETGET_C32_UINT64: |
7512 | 70 | { |
7513 | 70 | uint64_t *data; |
7514 | 70 | assert(fip->field_readcount == TIFF_VARIABLE2); |
7515 | 70 | assert(fip->field_passcount == 1); |
7516 | 70 | err = TIFFReadDirEntryLong8Array(tif, dp, &data); |
7517 | 70 | if (err == TIFFReadDirEntryErrOk) |
7518 | 31 | { |
7519 | 31 | int m; |
7520 | 31 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7521 | 0 | { |
7522 | 0 | if (data != 0) |
7523 | 0 | _TIFFfreeExt(tif, data); |
7524 | 0 | return 0; |
7525 | 0 | } |
7526 | 31 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
7527 | 31 | data); |
7528 | 31 | if (data != 0) |
7529 | 18 | _TIFFfreeExt(tif, data); |
7530 | 31 | if (!m) |
7531 | 26 | return (0); |
7532 | 31 | } |
7533 | 70 | } |
7534 | 44 | break; |
7535 | 77 | case TIFF_SETGET_C32_SINT64: |
7536 | 77 | { |
7537 | 77 | int64_t *data = NULL; |
7538 | 77 | assert(fip->field_readcount == TIFF_VARIABLE2); |
7539 | 77 | assert(fip->field_passcount == 1); |
7540 | 77 | err = TIFFReadDirEntrySlong8Array(tif, dp, &data); |
7541 | 77 | if (err == TIFFReadDirEntryErrOk) |
7542 | 44 | { |
7543 | 44 | int m; |
7544 | 44 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7545 | 0 | { |
7546 | 0 | if (data != 0) |
7547 | 0 | _TIFFfreeExt(tif, data); |
7548 | 0 | return 0; |
7549 | 0 | } |
7550 | 44 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
7551 | 44 | data); |
7552 | 44 | if (data != 0) |
7553 | 39 | _TIFFfreeExt(tif, data); |
7554 | 44 | if (!m) |
7555 | 27 | return (0); |
7556 | 44 | } |
7557 | 77 | } |
7558 | 50 | break; |
7559 | 223 | case TIFF_SETGET_C32_FLOAT: |
7560 | 223 | { |
7561 | 223 | float *data; |
7562 | 223 | assert(fip->field_readcount == TIFF_VARIABLE2); |
7563 | 223 | assert(fip->field_passcount == 1); |
7564 | 223 | err = TIFFReadDirEntryFloatArray(tif, dp, &data); |
7565 | 223 | if (err == TIFFReadDirEntryErrOk) |
7566 | 46 | { |
7567 | 46 | int m; |
7568 | 46 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7569 | 0 | { |
7570 | 0 | if (data != 0) |
7571 | 0 | _TIFFfreeExt(tif, data); |
7572 | 0 | return 0; |
7573 | 0 | } |
7574 | 46 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
7575 | 46 | data); |
7576 | 46 | if (data != 0) |
7577 | 38 | _TIFFfreeExt(tif, data); |
7578 | 46 | if (!m) |
7579 | 8 | return (0); |
7580 | 46 | } |
7581 | 223 | } |
7582 | 215 | break; |
7583 | 215 | case TIFF_SETGET_C32_DOUBLE: |
7584 | 189 | { |
7585 | 189 | double *data; |
7586 | 189 | assert(fip->field_readcount == TIFF_VARIABLE2); |
7587 | 189 | assert(fip->field_passcount == 1); |
7588 | 189 | err = TIFFReadDirEntryDoubleArray(tif, dp, &data); |
7589 | 189 | if (err == TIFFReadDirEntryErrOk) |
7590 | 63 | { |
7591 | 63 | int m; |
7592 | 63 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7593 | 0 | { |
7594 | 0 | if (data != 0) |
7595 | 0 | _TIFFfreeExt(tif, data); |
7596 | 0 | return 0; |
7597 | 0 | } |
7598 | 63 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
7599 | 63 | data); |
7600 | 63 | if (data != 0) |
7601 | 63 | _TIFFfreeExt(tif, data); |
7602 | 63 | if (!m) |
7603 | 0 | return (0); |
7604 | 63 | } |
7605 | 189 | } |
7606 | 189 | break; |
7607 | 189 | case TIFF_SETGET_C32_IFD8: |
7608 | 46 | { |
7609 | 46 | uint64_t *data; |
7610 | 46 | assert(fip->field_readcount == TIFF_VARIABLE2); |
7611 | 46 | assert(fip->field_passcount == 1); |
7612 | 46 | err = TIFFReadDirEntryIfd8Array(tif, dp, &data); |
7613 | 46 | if (err == TIFFReadDirEntryErrOk) |
7614 | 17 | { |
7615 | 17 | int m; |
7616 | 17 | if (!EvaluateIFDdatasizeReading(tif, dp)) |
7617 | 0 | { |
7618 | 0 | if (data != 0) |
7619 | 0 | _TIFFfreeExt(tif, data); |
7620 | 0 | return 0; |
7621 | 0 | } |
7622 | 17 | m = TIFFSetField(tif, dp->tdir_tag, (uint32_t)(dp->tdir_count), |
7623 | 17 | data); |
7624 | 17 | if (data != 0) |
7625 | 8 | _TIFFfreeExt(tif, data); |
7626 | 17 | if (!m) |
7627 | 9 | return (0); |
7628 | 17 | } |
7629 | 46 | } |
7630 | 37 | break; |
7631 | 37 | default: |
7632 | 0 | assert(0); /* we should never get here */ |
7633 | 0 | break; |
7634 | 18.9k | } |
7635 | 18.6k | if (err != TIFFReadDirEntryErrOk) |
7636 | 2.11k | { |
7637 | 2.11k | TIFFReadDirEntryOutputErr(tif, err, module, fip->field_name, recover); |
7638 | 2.11k | return (0); |
7639 | 2.11k | } |
7640 | 16.5k | return (1); |
7641 | 18.6k | } |
7642 | | |
7643 | | /* |
7644 | | * Fetch a set of offsets or lengths. |
7645 | | * While this routine says "strips", in fact it's also used for tiles. |
7646 | | */ |
7647 | | static int TIFFFetchStripThing(TIFF *tif, TIFFDirEntry *dir, uint32_t nstrips, |
7648 | | uint64_t **lpp) |
7649 | 735 | { |
7650 | 735 | static const char module[] = "TIFFFetchStripThing"; |
7651 | 735 | enum TIFFReadDirEntryErr err; |
7652 | 735 | uint64_t *data; |
7653 | 735 | err = TIFFReadDirEntryLong8ArrayWithLimit(tif, dir, &data, nstrips); |
7654 | 735 | if (err != TIFFReadDirEntryErrOk) |
7655 | 110 | { |
7656 | 110 | const TIFFField *fip = TIFFFieldWithTag(tif, dir->tdir_tag); |
7657 | 110 | TIFFReadDirEntryOutputErr(tif, err, module, |
7658 | 110 | fip ? fip->field_name : "unknown tagname", 0); |
7659 | 110 | return (0); |
7660 | 110 | } |
7661 | 625 | if (dir->tdir_count < (uint64_t)nstrips) |
7662 | 124 | { |
7663 | 124 | uint64_t *resizeddata; |
7664 | 124 | const TIFFField *fip = TIFFFieldWithTag(tif, dir->tdir_tag); |
7665 | 124 | const char *pszMax = getenv("LIBTIFF_STRILE_ARRAY_MAX_RESIZE_COUNT"); |
7666 | 124 | uint32_t max_nstrips = 1000000; |
7667 | 124 | uint64_t allocsize; |
7668 | 124 | if (pszMax) |
7669 | 0 | max_nstrips = (uint32_t)atoi(pszMax); |
7670 | 124 | TIFFReadDirEntryOutputErr(tif, TIFFReadDirEntryErrCount, module, |
7671 | 124 | fip ? fip->field_name : "unknown tagname", |
7672 | 124 | (nstrips <= max_nstrips)); |
7673 | | |
7674 | 124 | if (nstrips > max_nstrips) |
7675 | 6 | { |
7676 | 6 | _TIFFfreeExt(tif, data); |
7677 | 6 | return (0); |
7678 | 6 | } |
7679 | | |
7680 | 118 | allocsize = (uint64_t)nstrips * sizeof(uint64_t); |
7681 | 118 | if (allocsize > 100 * 1024 * 1024) |
7682 | 0 | { |
7683 | | /* Before allocating a huge amount of memory for corrupted files, |
7684 | | * check if size of requested memory is not greater than file size. |
7685 | | */ |
7686 | 0 | const uint64_t filesize = TIFFGetFileSize(tif); |
7687 | 0 | if (allocsize > filesize) |
7688 | 0 | { |
7689 | 0 | TIFFWarningExtR( |
7690 | 0 | tif, module, |
7691 | 0 | "Requested memory size for StripArray of %" PRIu64 |
7692 | 0 | " is greater than filesize %" PRIu64 |
7693 | 0 | ". Memory not allocated", |
7694 | 0 | allocsize, filesize); |
7695 | 0 | _TIFFfreeExt(tif, data); |
7696 | 0 | return (0); |
7697 | 0 | } |
7698 | 0 | } |
7699 | 118 | resizeddata = (uint64_t *)_TIFFCheckMalloc( |
7700 | 118 | tif, nstrips, sizeof(uint64_t), "for strip array"); |
7701 | 118 | if (resizeddata == 0) |
7702 | 0 | { |
7703 | 0 | _TIFFfreeExt(tif, data); |
7704 | 0 | return (0); |
7705 | 0 | } |
7706 | 118 | if (dir->tdir_count) |
7707 | 79 | _TIFFmemcpy(resizeddata, data, |
7708 | 79 | (uint32_t)dir->tdir_count * sizeof(uint64_t)); |
7709 | 118 | _TIFFmemset(resizeddata + (uint32_t)dir->tdir_count, 0, |
7710 | 118 | (nstrips - (uint32_t)dir->tdir_count) * sizeof(uint64_t)); |
7711 | 118 | _TIFFfreeExt(tif, data); |
7712 | 118 | data = resizeddata; |
7713 | 118 | } |
7714 | 619 | *lpp = data; |
7715 | 619 | return (1); |
7716 | 625 | } |
7717 | | |
7718 | | /* |
7719 | | * Fetch and set the SubjectDistance EXIF tag. |
7720 | | */ |
7721 | | static int TIFFFetchSubjectDistance(TIFF *tif, TIFFDirEntry *dir) |
7722 | 0 | { |
7723 | 0 | static const char module[] = "TIFFFetchSubjectDistance"; |
7724 | 0 | enum TIFFReadDirEntryErr err; |
7725 | 0 | UInt64Aligned_t m; |
7726 | 0 | m.l = 0; |
7727 | 0 | assert(sizeof(double) == 8); |
7728 | 0 | assert(sizeof(uint64_t) == 8); |
7729 | 0 | assert(sizeof(uint32_t) == 4); |
7730 | 0 | if (dir->tdir_count != 1) |
7731 | 0 | err = TIFFReadDirEntryErrCount; |
7732 | 0 | else if (dir->tdir_type != TIFF_RATIONAL) |
7733 | 0 | err = TIFFReadDirEntryErrType; |
7734 | 0 | else |
7735 | 0 | { |
7736 | 0 | if (!(tif->tif_flags & TIFF_BIGTIFF)) |
7737 | 0 | { |
7738 | 0 | uint32_t offset; |
7739 | 0 | offset = *(uint32_t *)(&dir->tdir_offset); |
7740 | 0 | if (tif->tif_flags & TIFF_SWAB) |
7741 | 0 | TIFFSwabLong(&offset); |
7742 | 0 | err = TIFFReadDirEntryData(tif, offset, 8, m.i); |
7743 | 0 | } |
7744 | 0 | else |
7745 | 0 | { |
7746 | 0 | m.l = dir->tdir_offset.toff_long8; |
7747 | 0 | err = TIFFReadDirEntryErrOk; |
7748 | 0 | } |
7749 | 0 | } |
7750 | 0 | if (err == TIFFReadDirEntryErrOk) |
7751 | 0 | { |
7752 | 0 | double n; |
7753 | 0 | if (tif->tif_flags & TIFF_SWAB) |
7754 | 0 | TIFFSwabArrayOfLong(m.i, 2); |
7755 | 0 | if (m.i[0] == 0) |
7756 | 0 | n = 0.0; |
7757 | 0 | else if (m.i[0] == 0xFFFFFFFF || m.i[1] == 0) |
7758 | | /* |
7759 | | * XXX: Numerator 0xFFFFFFFF means that we have infinite |
7760 | | * distance. Indicate that with a negative floating point |
7761 | | * SubjectDistance value. |
7762 | | */ |
7763 | 0 | n = -1.0; |
7764 | 0 | else |
7765 | 0 | n = (double)m.i[0] / (double)m.i[1]; |
7766 | 0 | return (TIFFSetField(tif, dir->tdir_tag, n)); |
7767 | 0 | } |
7768 | 0 | else |
7769 | 0 | { |
7770 | 0 | TIFFReadDirEntryOutputErr(tif, err, module, "SubjectDistance", TRUE); |
7771 | 0 | return (0); |
7772 | 0 | } |
7773 | 0 | } |
7774 | | |
7775 | | static void allocChoppedUpStripArrays(TIFF *tif, uint32_t nstrips, |
7776 | | uint64_t stripbytes, |
7777 | | uint32_t rowsperstrip) |
7778 | 77 | { |
7779 | 77 | TIFFDirectory *td = &tif->tif_dir; |
7780 | 77 | uint64_t bytecount; |
7781 | 77 | uint64_t offset; |
7782 | 77 | uint64_t last_offset; |
7783 | 77 | uint64_t last_bytecount; |
7784 | 77 | uint32_t i; |
7785 | 77 | uint64_t *newcounts; |
7786 | 77 | uint64_t *newoffsets; |
7787 | 77 | uint64_t allocsize; |
7788 | | |
7789 | 77 | offset = TIFFGetStrileOffset(tif, 0); |
7790 | 77 | last_offset = TIFFGetStrileOffset(tif, td->td_nstrips - 1); |
7791 | 77 | last_bytecount = TIFFGetStrileByteCount(tif, td->td_nstrips - 1); |
7792 | 77 | if (last_offset > UINT64_MAX - last_bytecount || |
7793 | 70 | last_offset + last_bytecount < offset) |
7794 | 8 | { |
7795 | 8 | return; |
7796 | 8 | } |
7797 | 69 | bytecount = last_offset + last_bytecount - offset; |
7798 | | |
7799 | | /* Before allocating a huge amount of memory for corrupted files, check if |
7800 | | * size of StripByteCount and StripOffset tags is not greater than |
7801 | | * file size. |
7802 | | */ |
7803 | 69 | allocsize = (uint64_t)nstrips * sizeof(uint64_t) * 2; |
7804 | 69 | if (allocsize > 100 * 1024 * 1024) |
7805 | 0 | { |
7806 | 0 | const uint64_t filesize = TIFFGetFileSize(tif); |
7807 | 0 | if (allocsize > filesize) |
7808 | 0 | { |
7809 | 0 | TIFFWarningExtR(tif, "allocChoppedUpStripArrays", |
7810 | 0 | "Requested memory size for StripByteCount and " |
7811 | 0 | "StripOffsets %" PRIu64 |
7812 | 0 | " is greater than filesize %" PRIu64 |
7813 | 0 | ". Memory not allocated", |
7814 | 0 | allocsize, filesize); |
7815 | 0 | return; |
7816 | 0 | } |
7817 | 0 | } |
7818 | | |
7819 | 69 | newcounts = |
7820 | 69 | (uint64_t *)_TIFFCheckMalloc(tif, nstrips, sizeof(uint64_t), |
7821 | 69 | "for chopped \"StripByteCounts\" array"); |
7822 | 69 | newoffsets = (uint64_t *)_TIFFCheckMalloc( |
7823 | 69 | tif, nstrips, sizeof(uint64_t), "for chopped \"StripOffsets\" array"); |
7824 | 69 | if (newcounts == NULL || newoffsets == NULL) |
7825 | 0 | { |
7826 | | /* |
7827 | | * Unable to allocate new strip information, give up and use |
7828 | | * the original one strip information. |
7829 | | */ |
7830 | 0 | if (newcounts != NULL) |
7831 | 0 | _TIFFfreeExt(tif, newcounts); |
7832 | 0 | if (newoffsets != NULL) |
7833 | 0 | _TIFFfreeExt(tif, newoffsets); |
7834 | 0 | return; |
7835 | 0 | } |
7836 | | |
7837 | | /* |
7838 | | * Fill the strip information arrays with new bytecounts and offsets |
7839 | | * that reflect the broken-up format. |
7840 | | */ |
7841 | 2.28M | for (i = 0; i < nstrips; i++) |
7842 | 2.28M | { |
7843 | 2.28M | if (stripbytes > bytecount) |
7844 | 33 | stripbytes = bytecount; |
7845 | 2.28M | newcounts[i] = stripbytes; |
7846 | 2.28M | newoffsets[i] = stripbytes ? offset : 0; |
7847 | 2.28M | offset += stripbytes; |
7848 | 2.28M | bytecount -= stripbytes; |
7849 | 2.28M | } |
7850 | | |
7851 | | /* |
7852 | | * Replace old single strip info with multi-strip info. |
7853 | | */ |
7854 | 69 | td->td_stripsperimage = td->td_nstrips = nstrips; |
7855 | 69 | TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, rowsperstrip); |
7856 | | |
7857 | 69 | _TIFFfreeExt(tif, td->td_stripbytecount_p); |
7858 | 69 | _TIFFfreeExt(tif, td->td_stripoffset_p); |
7859 | 69 | td->td_stripbytecount_p = newcounts; |
7860 | 69 | td->td_stripoffset_p = newoffsets; |
7861 | | #ifdef STRIPBYTECOUNTSORTED_UNUSED |
7862 | | td->td_stripbytecountsorted = 1; |
7863 | | #endif |
7864 | 69 | tif->tif_flags |= TIFF_CHOPPEDUPARRAYS; |
7865 | 69 | } |
7866 | | |
7867 | | /* |
7868 | | * Replace a single strip (tile) of uncompressed data by multiple strips |
7869 | | * (tiles), each approximately STRIP_SIZE_DEFAULT bytes. This is useful for |
7870 | | * dealing with large images or for dealing with machines with a limited |
7871 | | * amount memory. |
7872 | | */ |
7873 | | static void ChopUpSingleUncompressedStrip(TIFF *tif) |
7874 | 156 | { |
7875 | 156 | register TIFFDirectory *td = &tif->tif_dir; |
7876 | 156 | uint64_t bytecount; |
7877 | 156 | uint64_t offset; |
7878 | 156 | uint32_t rowblock; |
7879 | 156 | uint64_t rowblockbytes; |
7880 | 156 | uint64_t stripbytes; |
7881 | 156 | uint32_t nstrips; |
7882 | 156 | uint32_t rowsperstrip; |
7883 | | |
7884 | 156 | bytecount = TIFFGetStrileByteCount(tif, 0); |
7885 | | /* On a newly created file, just re-opened to be filled, we */ |
7886 | | /* don't want strip chop to trigger as it is going to cause issues */ |
7887 | | /* later ( StripOffsets and StripByteCounts improperly filled) . */ |
7888 | 156 | if (bytecount == 0 && tif->tif_mode != O_RDONLY) |
7889 | 0 | return; |
7890 | 156 | offset = TIFFGetStrileByteCount(tif, 0); |
7891 | 156 | assert(td->td_planarconfig == PLANARCONFIG_CONTIG); |
7892 | 156 | if ((td->td_photometric == PHOTOMETRIC_YCBCR) && (!isUpSampled(tif))) |
7893 | 38 | rowblock = td->td_ycbcrsubsampling[1]; |
7894 | 118 | else |
7895 | 118 | rowblock = 1; |
7896 | 156 | rowblockbytes = TIFFVTileSize64(tif, rowblock); |
7897 | | /* |
7898 | | * Make the rows hold at least one scanline, but fill specified amount |
7899 | | * of data if possible. |
7900 | | */ |
7901 | 156 | if (rowblockbytes > STRIP_SIZE_DEFAULT) |
7902 | 36 | { |
7903 | 36 | stripbytes = rowblockbytes; |
7904 | 36 | rowsperstrip = rowblock; |
7905 | 36 | } |
7906 | 120 | else if (rowblockbytes > 0) |
7907 | 107 | { |
7908 | 107 | uint32_t rowblocksperstrip; |
7909 | 107 | rowblocksperstrip = (uint32_t)(STRIP_SIZE_DEFAULT / rowblockbytes); |
7910 | 107 | rowsperstrip = rowblocksperstrip * rowblock; |
7911 | 107 | stripbytes = rowblocksperstrip * rowblockbytes; |
7912 | 107 | } |
7913 | 13 | else |
7914 | 13 | return; |
7915 | | |
7916 | | /* |
7917 | | * never increase the number of rows per strip |
7918 | | */ |
7919 | 143 | if (rowsperstrip >= td->td_rowsperstrip || rowsperstrip == 0) |
7920 | 52 | return; |
7921 | 91 | nstrips = TIFFhowmany_32(td->td_imagelength, rowsperstrip); |
7922 | 91 | if (nstrips == 0) |
7923 | 5 | return; |
7924 | | |
7925 | | /* If we are going to allocate a lot of memory, make sure that the */ |
7926 | | /* file is as big as needed */ |
7927 | 86 | if (tif->tif_mode == O_RDONLY && nstrips > 1000000 && |
7928 | 27 | (offset >= TIFFGetFileSize(tif) || |
7929 | 2 | stripbytes > (TIFFGetFileSize(tif) - offset) / (nstrips - 1))) |
7930 | 27 | { |
7931 | 27 | return; |
7932 | 27 | } |
7933 | | |
7934 | 59 | allocChoppedUpStripArrays(tif, nstrips, stripbytes, rowsperstrip); |
7935 | 59 | } |
7936 | | |
7937 | | /* |
7938 | | * Replace a file with contiguous strips > 2 GB of uncompressed data by |
7939 | | * multiple smaller strips. This is useful for |
7940 | | * dealing with large images or for dealing with machines with a limited |
7941 | | * amount memory. |
7942 | | */ |
7943 | | static void TryChopUpUncompressedBigTiff(TIFF *tif) |
7944 | 35 | { |
7945 | 35 | TIFFDirectory *td = &tif->tif_dir; |
7946 | 35 | uint32_t rowblock; |
7947 | 35 | uint64_t rowblockbytes; |
7948 | 35 | uint32_t i; |
7949 | 35 | uint64_t stripsize; |
7950 | 35 | uint32_t rowblocksperstrip; |
7951 | 35 | uint32_t rowsperstrip; |
7952 | 35 | uint64_t stripbytes; |
7953 | 35 | uint32_t nstrips; |
7954 | | |
7955 | 35 | stripsize = TIFFStripSize64(tif); |
7956 | | |
7957 | 35 | assert(tif->tif_dir.td_planarconfig == PLANARCONFIG_CONTIG); |
7958 | 35 | assert(tif->tif_dir.td_compression == COMPRESSION_NONE); |
7959 | 35 | assert((tif->tif_flags & (TIFF_STRIPCHOP | TIFF_ISTILED)) == |
7960 | 35 | TIFF_STRIPCHOP); |
7961 | 35 | assert(stripsize > 0x7FFFFFFFUL); |
7962 | | |
7963 | | /* On a newly created file, just re-opened to be filled, we */ |
7964 | | /* don't want strip chop to trigger as it is going to cause issues */ |
7965 | | /* later ( StripOffsets and StripByteCounts improperly filled) . */ |
7966 | 35 | if (TIFFGetStrileByteCount(tif, 0) == 0 && tif->tif_mode != O_RDONLY) |
7967 | 0 | return; |
7968 | | |
7969 | 35 | if ((td->td_photometric == PHOTOMETRIC_YCBCR) && (!isUpSampled(tif))) |
7970 | 1 | rowblock = td->td_ycbcrsubsampling[1]; |
7971 | 34 | else |
7972 | 34 | rowblock = 1; |
7973 | 35 | rowblockbytes = TIFFVStripSize64(tif, rowblock); |
7974 | 35 | if (rowblockbytes == 0 || rowblockbytes > 0x7FFFFFFFUL) |
7975 | 5 | { |
7976 | | /* In case of file with gigantic width */ |
7977 | 5 | return; |
7978 | 5 | } |
7979 | | |
7980 | | /* Check that the strips are contiguous and of the expected size */ |
7981 | 56 | for (i = 0; i < td->td_nstrips; i++) |
7982 | 31 | { |
7983 | 31 | if (i == td->td_nstrips - 1) |
7984 | 27 | { |
7985 | 27 | if (TIFFGetStrileByteCount(tif, i) < |
7986 | 27 | TIFFVStripSize64(tif, |
7987 | 27 | td->td_imagelength - i * td->td_rowsperstrip)) |
7988 | 2 | { |
7989 | 2 | return; |
7990 | 2 | } |
7991 | 27 | } |
7992 | 4 | else |
7993 | 4 | { |
7994 | 4 | if (TIFFGetStrileByteCount(tif, i) != stripsize) |
7995 | 3 | { |
7996 | 3 | return; |
7997 | 3 | } |
7998 | 1 | if (i > 0 && TIFFGetStrileOffset(tif, i) != |
7999 | 0 | TIFFGetStrileOffset(tif, i - 1) + |
8000 | 0 | TIFFGetStrileByteCount(tif, i - 1)) |
8001 | 0 | { |
8002 | 0 | return; |
8003 | 0 | } |
8004 | 1 | } |
8005 | 31 | } |
8006 | | |
8007 | | /* Aim for 512 MB strips (that will still be manageable by 32 bit builds */ |
8008 | 25 | rowblocksperstrip = (uint32_t)(512 * 1024 * 1024 / rowblockbytes); |
8009 | 25 | if (rowblocksperstrip == 0) |
8010 | 0 | rowblocksperstrip = 1; |
8011 | 25 | rowsperstrip = rowblocksperstrip * rowblock; |
8012 | 25 | stripbytes = rowblocksperstrip * rowblockbytes; |
8013 | 25 | assert(stripbytes <= 0x7FFFFFFFUL); |
8014 | | |
8015 | 25 | if (rowsperstrip == 0) |
8016 | 0 | return; |
8017 | 25 | nstrips = TIFFhowmany_32(td->td_imagelength, rowsperstrip); |
8018 | 25 | if (nstrips == 0) |
8019 | 1 | return; |
8020 | | |
8021 | | /* If we are going to allocate a lot of memory, make sure that the */ |
8022 | | /* file is as big as needed */ |
8023 | 24 | if (tif->tif_mode == O_RDONLY && nstrips > 1000000) |
8024 | 6 | { |
8025 | 6 | uint64_t last_offset = TIFFGetStrileOffset(tif, td->td_nstrips - 1); |
8026 | 6 | uint64_t filesize = TIFFGetFileSize(tif); |
8027 | 6 | uint64_t last_bytecount = |
8028 | 6 | TIFFGetStrileByteCount(tif, td->td_nstrips - 1); |
8029 | 6 | if (last_offset > filesize || last_bytecount > filesize - last_offset) |
8030 | 6 | { |
8031 | 6 | return; |
8032 | 6 | } |
8033 | 6 | } |
8034 | | |
8035 | 18 | allocChoppedUpStripArrays(tif, nstrips, stripbytes, rowsperstrip); |
8036 | 18 | } |
8037 | | |
8038 | | TIFF_NOSANITIZE_UNSIGNED_INT_OVERFLOW |
8039 | | static uint64_t _TIFFUnsanitizedAddUInt64AndInt(uint64_t a, int b) |
8040 | 0 | { |
8041 | 0 | return a + b; |
8042 | 0 | } |
8043 | | |
8044 | | /* Read the value of [Strip|Tile]Offset or [Strip|Tile]ByteCount around |
8045 | | * strip/tile of number strile. Also fetch the neighbouring values using a |
8046 | | * 4096 byte page size. |
8047 | | */ |
8048 | | static int _TIFFPartialReadStripArray(TIFF *tif, TIFFDirEntry *dirent, |
8049 | | int strile, uint64_t *panVals) |
8050 | 0 | { |
8051 | 0 | static const char module[] = "_TIFFPartialReadStripArray"; |
8052 | 0 | #define IO_CACHE_PAGE_SIZE 4096 |
8053 | |
|
8054 | 0 | size_t sizeofval; |
8055 | 0 | const int bSwab = (tif->tif_flags & TIFF_SWAB) != 0; |
8056 | 0 | int sizeofvalint; |
8057 | 0 | uint64_t nBaseOffset; |
8058 | 0 | uint64_t nOffset; |
8059 | 0 | uint64_t nOffsetStartPage; |
8060 | 0 | uint64_t nOffsetEndPage; |
8061 | 0 | tmsize_t nToRead; |
8062 | 0 | tmsize_t nRead; |
8063 | 0 | uint64_t nLastStripOffset; |
8064 | 0 | int iStartBefore; |
8065 | 0 | int i; |
8066 | 0 | const uint32_t arraySize = tif->tif_dir.td_stripoffsetbyteallocsize; |
8067 | 0 | unsigned char buffer[2 * IO_CACHE_PAGE_SIZE]; |
8068 | |
|
8069 | 0 | assert(dirent->tdir_count > 4); |
8070 | |
|
8071 | 0 | if (dirent->tdir_type == TIFF_SHORT) |
8072 | 0 | { |
8073 | 0 | sizeofval = sizeof(uint16_t); |
8074 | 0 | } |
8075 | 0 | else if (dirent->tdir_type == TIFF_LONG) |
8076 | 0 | { |
8077 | 0 | sizeofval = sizeof(uint32_t); |
8078 | 0 | } |
8079 | 0 | else if (dirent->tdir_type == TIFF_LONG8) |
8080 | 0 | { |
8081 | 0 | sizeofval = sizeof(uint64_t); |
8082 | 0 | } |
8083 | 0 | else if (dirent->tdir_type == TIFF_SLONG8) |
8084 | 0 | { |
8085 | | /* Non conformant but used by some images as in */ |
8086 | | /* https://github.com/OSGeo/gdal/issues/2165 */ |
8087 | 0 | sizeofval = sizeof(int64_t); |
8088 | 0 | } |
8089 | 0 | else |
8090 | 0 | { |
8091 | 0 | TIFFErrorExtR(tif, module, |
8092 | 0 | "Invalid type for [Strip|Tile][Offset/ByteCount] tag"); |
8093 | 0 | panVals[strile] = 0; |
8094 | 0 | return 0; |
8095 | 0 | } |
8096 | 0 | sizeofvalint = (int)(sizeofval); |
8097 | |
|
8098 | 0 | if (tif->tif_flags & TIFF_BIGTIFF) |
8099 | 0 | { |
8100 | 0 | uint64_t offset = dirent->tdir_offset.toff_long8; |
8101 | 0 | if (bSwab) |
8102 | 0 | TIFFSwabLong8(&offset); |
8103 | 0 | nBaseOffset = offset; |
8104 | 0 | } |
8105 | 0 | else |
8106 | 0 | { |
8107 | 0 | uint32_t offset = dirent->tdir_offset.toff_long; |
8108 | 0 | if (bSwab) |
8109 | 0 | TIFFSwabLong(&offset); |
8110 | 0 | nBaseOffset = offset; |
8111 | 0 | } |
8112 | | /* To avoid later unsigned integer overflows */ |
8113 | 0 | if (nBaseOffset > (uint64_t)INT64_MAX) |
8114 | 0 | { |
8115 | 0 | TIFFErrorExtR(tif, module, "Cannot read offset/size for strile %d", |
8116 | 0 | strile); |
8117 | 0 | panVals[strile] = 0; |
8118 | 0 | return 0; |
8119 | 0 | } |
8120 | 0 | nOffset = nBaseOffset + sizeofval * strile; |
8121 | 0 | nOffsetStartPage = (nOffset / IO_CACHE_PAGE_SIZE) * IO_CACHE_PAGE_SIZE; |
8122 | 0 | nOffsetEndPage = nOffsetStartPage + IO_CACHE_PAGE_SIZE; |
8123 | |
|
8124 | 0 | if (nOffset + sizeofval > nOffsetEndPage) |
8125 | 0 | nOffsetEndPage += IO_CACHE_PAGE_SIZE; |
8126 | 0 | #undef IO_CACHE_PAGE_SIZE |
8127 | |
|
8128 | 0 | nLastStripOffset = nBaseOffset + arraySize * sizeofval; |
8129 | 0 | if (nLastStripOffset < nOffsetEndPage) |
8130 | 0 | nOffsetEndPage = nLastStripOffset; |
8131 | 0 | if (nOffsetStartPage >= nOffsetEndPage) |
8132 | 0 | { |
8133 | 0 | TIFFErrorExtR(tif, module, "Cannot read offset/size for strile %d", |
8134 | 0 | strile); |
8135 | 0 | panVals[strile] = 0; |
8136 | 0 | return 0; |
8137 | 0 | } |
8138 | 0 | if (!SeekOK(tif, nOffsetStartPage)) |
8139 | 0 | { |
8140 | 0 | panVals[strile] = 0; |
8141 | 0 | return 0; |
8142 | 0 | } |
8143 | | |
8144 | 0 | nToRead = (tmsize_t)(nOffsetEndPage - nOffsetStartPage); |
8145 | 0 | nRead = TIFFReadFile(tif, buffer, nToRead); |
8146 | 0 | if (nRead < nToRead) |
8147 | 0 | { |
8148 | 0 | TIFFErrorExtR(tif, module, |
8149 | 0 | "Cannot read offset/size for strile around ~%d", strile); |
8150 | 0 | return 0; |
8151 | 0 | } |
8152 | 0 | iStartBefore = -(int)((nOffset - nOffsetStartPage) / sizeofval); |
8153 | 0 | if (strile + iStartBefore < 0) |
8154 | 0 | iStartBefore = -strile; |
8155 | 0 | for (i = iStartBefore; |
8156 | 0 | (uint32_t)(strile + i) < arraySize && |
8157 | 0 | _TIFFUnsanitizedAddUInt64AndInt(nOffset, (i + 1) * sizeofvalint) <= |
8158 | 0 | nOffsetEndPage; |
8159 | 0 | ++i) |
8160 | 0 | { |
8161 | 0 | if (dirent->tdir_type == TIFF_SHORT) |
8162 | 0 | { |
8163 | 0 | uint16_t val; |
8164 | 0 | memcpy(&val, |
8165 | 0 | buffer + (nOffset - nOffsetStartPage) + i * sizeofvalint, |
8166 | 0 | sizeof(val)); |
8167 | 0 | if (bSwab) |
8168 | 0 | TIFFSwabShort(&val); |
8169 | 0 | panVals[strile + i] = val; |
8170 | 0 | } |
8171 | 0 | else if (dirent->tdir_type == TIFF_LONG) |
8172 | 0 | { |
8173 | 0 | uint32_t val; |
8174 | 0 | memcpy(&val, |
8175 | 0 | buffer + (nOffset - nOffsetStartPage) + i * sizeofvalint, |
8176 | 0 | sizeof(val)); |
8177 | 0 | if (bSwab) |
8178 | 0 | TIFFSwabLong(&val); |
8179 | 0 | panVals[strile + i] = val; |
8180 | 0 | } |
8181 | 0 | else if (dirent->tdir_type == TIFF_LONG8) |
8182 | 0 | { |
8183 | 0 | uint64_t val; |
8184 | 0 | memcpy(&val, |
8185 | 0 | buffer + (nOffset - nOffsetStartPage) + i * sizeofvalint, |
8186 | 0 | sizeof(val)); |
8187 | 0 | if (bSwab) |
8188 | 0 | TIFFSwabLong8(&val); |
8189 | 0 | panVals[strile + i] = val; |
8190 | 0 | } |
8191 | 0 | else /* if( dirent->tdir_type == TIFF_SLONG8 ) */ |
8192 | 0 | { |
8193 | | /* Non conformant data type */ |
8194 | 0 | int64_t val; |
8195 | 0 | memcpy(&val, |
8196 | 0 | buffer + (nOffset - nOffsetStartPage) + i * sizeofvalint, |
8197 | 0 | sizeof(val)); |
8198 | 0 | if (bSwab) |
8199 | 0 | TIFFSwabLong8((uint64_t *)&val); |
8200 | 0 | panVals[strile + i] = (uint64_t)val; |
8201 | 0 | } |
8202 | 0 | } |
8203 | 0 | return 1; |
8204 | 0 | } |
8205 | | |
8206 | | static int _TIFFFetchStrileValue(TIFF *tif, uint32_t strile, |
8207 | | TIFFDirEntry *dirent, uint64_t **parray) |
8208 | 0 | { |
8209 | 0 | static const char module[] = "_TIFFFetchStrileValue"; |
8210 | 0 | TIFFDirectory *td = &tif->tif_dir; |
8211 | 0 | if (strile >= dirent->tdir_count) |
8212 | 0 | { |
8213 | 0 | return 0; |
8214 | 0 | } |
8215 | 0 | if (strile >= td->td_stripoffsetbyteallocsize) |
8216 | 0 | { |
8217 | 0 | uint32_t nStripArrayAllocBefore = td->td_stripoffsetbyteallocsize; |
8218 | 0 | uint32_t nStripArrayAllocNew; |
8219 | 0 | uint64_t nArraySize64; |
8220 | 0 | size_t nArraySize; |
8221 | 0 | uint64_t *offsetArray; |
8222 | 0 | uint64_t *bytecountArray; |
8223 | |
|
8224 | 0 | if (strile > 1000000) |
8225 | 0 | { |
8226 | 0 | uint64_t filesize = TIFFGetFileSize(tif); |
8227 | | /* Avoid excessive memory allocation attempt */ |
8228 | | /* For such a big blockid we need at least a TIFF_LONG per strile */ |
8229 | | /* for the offset array. */ |
8230 | 0 | if (strile > filesize / sizeof(uint32_t)) |
8231 | 0 | { |
8232 | 0 | TIFFErrorExtR(tif, module, "File too short"); |
8233 | 0 | return 0; |
8234 | 0 | } |
8235 | 0 | } |
8236 | | |
8237 | 0 | if (td->td_stripoffsetbyteallocsize == 0 && |
8238 | 0 | td->td_nstrips < 1024 * 1024) |
8239 | 0 | { |
8240 | 0 | nStripArrayAllocNew = td->td_nstrips; |
8241 | 0 | } |
8242 | 0 | else |
8243 | 0 | { |
8244 | 0 | #define TIFF_MAX(a, b) (((a) > (b)) ? (a) : (b)) |
8245 | 0 | #define TIFF_MIN(a, b) (((a) < (b)) ? (a) : (b)) |
8246 | 0 | nStripArrayAllocNew = TIFF_MAX(strile + 1, 1024U * 512U); |
8247 | 0 | if (nStripArrayAllocNew < 0xFFFFFFFFU / 2) |
8248 | 0 | nStripArrayAllocNew *= 2; |
8249 | 0 | nStripArrayAllocNew = TIFF_MIN(nStripArrayAllocNew, td->td_nstrips); |
8250 | 0 | } |
8251 | 0 | assert(strile < nStripArrayAllocNew); |
8252 | 0 | nArraySize64 = (uint64_t)sizeof(uint64_t) * nStripArrayAllocNew; |
8253 | 0 | nArraySize = (size_t)(nArraySize64); |
8254 | | #if SIZEOF_SIZE_T == 4 |
8255 | | if (nArraySize != nArraySize64) |
8256 | | { |
8257 | | TIFFErrorExtR(tif, module, |
8258 | | "Cannot allocate strip offset and bytecount arrays"); |
8259 | | return 0; |
8260 | | } |
8261 | | #endif |
8262 | 0 | offsetArray = (uint64_t *)(_TIFFreallocExt(tif, td->td_stripoffset_p, |
8263 | 0 | nArraySize)); |
8264 | 0 | bytecountArray = (uint64_t *)(_TIFFreallocExt( |
8265 | 0 | tif, td->td_stripbytecount_p, nArraySize)); |
8266 | 0 | if (offsetArray) |
8267 | 0 | td->td_stripoffset_p = offsetArray; |
8268 | 0 | if (bytecountArray) |
8269 | 0 | td->td_stripbytecount_p = bytecountArray; |
8270 | 0 | if (offsetArray && bytecountArray) |
8271 | 0 | { |
8272 | 0 | td->td_stripoffsetbyteallocsize = nStripArrayAllocNew; |
8273 | | /* Initialize new entries to ~0 / -1 */ |
8274 | | /* coverity[overrun-buffer-arg] */ |
8275 | 0 | memset(td->td_stripoffset_p + nStripArrayAllocBefore, 0xFF, |
8276 | 0 | (td->td_stripoffsetbyteallocsize - nStripArrayAllocBefore) * |
8277 | 0 | sizeof(uint64_t)); |
8278 | | /* coverity[overrun-buffer-arg] */ |
8279 | 0 | memset(td->td_stripbytecount_p + nStripArrayAllocBefore, 0xFF, |
8280 | 0 | (td->td_stripoffsetbyteallocsize - nStripArrayAllocBefore) * |
8281 | 0 | sizeof(uint64_t)); |
8282 | 0 | } |
8283 | 0 | else |
8284 | 0 | { |
8285 | 0 | TIFFErrorExtR(tif, module, |
8286 | 0 | "Cannot allocate strip offset and bytecount arrays"); |
8287 | 0 | _TIFFfreeExt(tif, td->td_stripoffset_p); |
8288 | 0 | td->td_stripoffset_p = NULL; |
8289 | 0 | _TIFFfreeExt(tif, td->td_stripbytecount_p); |
8290 | 0 | td->td_stripbytecount_p = NULL; |
8291 | 0 | td->td_stripoffsetbyteallocsize = 0; |
8292 | 0 | } |
8293 | 0 | } |
8294 | 0 | if (*parray == NULL || strile >= td->td_stripoffsetbyteallocsize) |
8295 | 0 | return 0; |
8296 | | |
8297 | 0 | if (~((*parray)[strile]) == 0) |
8298 | 0 | { |
8299 | 0 | if (!_TIFFPartialReadStripArray(tif, dirent, strile, *parray)) |
8300 | 0 | { |
8301 | 0 | (*parray)[strile] = 0; |
8302 | 0 | return 0; |
8303 | 0 | } |
8304 | 0 | } |
8305 | | |
8306 | 0 | return 1; |
8307 | 0 | } |
8308 | | |
8309 | | static uint64_t _TIFFGetStrileOffsetOrByteCountValue(TIFF *tif, uint32_t strile, |
8310 | | TIFFDirEntry *dirent, |
8311 | | uint64_t **parray, |
8312 | | int *pbErr) |
8313 | 373k | { |
8314 | 373k | TIFFDirectory *td = &tif->tif_dir; |
8315 | 373k | if (pbErr) |
8316 | 0 | *pbErr = 0; |
8317 | 373k | if ((tif->tif_flags & TIFF_DEFERSTRILELOAD) && |
8318 | 0 | !(tif->tif_flags & TIFF_CHOPPEDUPARRAYS)) |
8319 | 0 | { |
8320 | 0 | if (!(tif->tif_flags & TIFF_LAZYSTRILELOAD) || |
8321 | | /* If the values may fit in the toff_long/toff_long8 member */ |
8322 | | /* then use _TIFFFillStriles to simplify _TIFFFetchStrileValue */ |
8323 | 0 | dirent->tdir_count <= 4) |
8324 | 0 | { |
8325 | 0 | if (!_TIFFFillStriles(tif)) |
8326 | 0 | { |
8327 | 0 | if (pbErr) |
8328 | 0 | *pbErr = 1; |
8329 | | /* Do not return, as we want this function to always */ |
8330 | | /* return the same value if called several times with */ |
8331 | | /* the same arguments */ |
8332 | 0 | } |
8333 | 0 | } |
8334 | 0 | else |
8335 | 0 | { |
8336 | 0 | if (!_TIFFFetchStrileValue(tif, strile, dirent, parray)) |
8337 | 0 | { |
8338 | 0 | if (pbErr) |
8339 | 0 | *pbErr = 1; |
8340 | 0 | return 0; |
8341 | 0 | } |
8342 | 0 | } |
8343 | 0 | } |
8344 | 373k | if (*parray == NULL || strile >= td->td_nstrips) |
8345 | 0 | { |
8346 | 0 | if (pbErr) |
8347 | 0 | *pbErr = 1; |
8348 | 0 | return 0; |
8349 | 0 | } |
8350 | 373k | return (*parray)[strile]; |
8351 | 373k | } |
8352 | | |
8353 | | /* Return the value of the TileOffsets/StripOffsets array for the specified |
8354 | | * tile/strile */ |
8355 | | uint64_t TIFFGetStrileOffset(TIFF *tif, uint32_t strile) |
8356 | 142k | { |
8357 | 142k | return TIFFGetStrileOffsetWithErr(tif, strile, NULL); |
8358 | 142k | } |
8359 | | |
8360 | | /* Return the value of the TileOffsets/StripOffsets array for the specified |
8361 | | * tile/strile */ |
8362 | | uint64_t TIFFGetStrileOffsetWithErr(TIFF *tif, uint32_t strile, int *pbErr) |
8363 | 142k | { |
8364 | 142k | TIFFDirectory *td = &tif->tif_dir; |
8365 | 142k | return _TIFFGetStrileOffsetOrByteCountValue(tif, strile, |
8366 | 142k | &(td->td_stripoffset_entry), |
8367 | 142k | &(td->td_stripoffset_p), pbErr); |
8368 | 142k | } |
8369 | | |
8370 | | /* Return the value of the TileByteCounts/StripByteCounts array for the |
8371 | | * specified tile/strile */ |
8372 | | uint64_t TIFFGetStrileByteCount(TIFF *tif, uint32_t strile) |
8373 | 231k | { |
8374 | 231k | return TIFFGetStrileByteCountWithErr(tif, strile, NULL); |
8375 | 231k | } |
8376 | | |
8377 | | /* Return the value of the TileByteCounts/StripByteCounts array for the |
8378 | | * specified tile/strile */ |
8379 | | uint64_t TIFFGetStrileByteCountWithErr(TIFF *tif, uint32_t strile, int *pbErr) |
8380 | 231k | { |
8381 | 231k | TIFFDirectory *td = &tif->tif_dir; |
8382 | 231k | return _TIFFGetStrileOffsetOrByteCountValue( |
8383 | 231k | tif, strile, &(td->td_stripbytecount_entry), &(td->td_stripbytecount_p), |
8384 | 231k | pbErr); |
8385 | 231k | } |
8386 | | |
8387 | 55.3k | int _TIFFFillStriles(TIFF *tif) { return _TIFFFillStrilesInternal(tif, 1); } |
8388 | | |
8389 | | static int _TIFFFillStrilesInternal(TIFF *tif, int loadStripByteCount) |
8390 | 55.5k | { |
8391 | 55.5k | register TIFFDirectory *td = &tif->tif_dir; |
8392 | 55.5k | int return_value = 1; |
8393 | | |
8394 | | /* Do not do anything if TIFF_DEFERSTRILELOAD is not set */ |
8395 | 55.5k | if (!(tif->tif_flags & TIFF_DEFERSTRILELOAD) || |
8396 | 0 | (tif->tif_flags & TIFF_CHOPPEDUPARRAYS) != 0) |
8397 | 55.5k | return 1; |
8398 | | |
8399 | 0 | if (tif->tif_flags & TIFF_LAZYSTRILELOAD) |
8400 | 0 | { |
8401 | | /* In case of lazy loading, reload completely the arrays */ |
8402 | 0 | _TIFFfreeExt(tif, td->td_stripoffset_p); |
8403 | 0 | _TIFFfreeExt(tif, td->td_stripbytecount_p); |
8404 | 0 | td->td_stripoffset_p = NULL; |
8405 | 0 | td->td_stripbytecount_p = NULL; |
8406 | 0 | td->td_stripoffsetbyteallocsize = 0; |
8407 | 0 | tif->tif_flags &= ~TIFF_LAZYSTRILELOAD; |
8408 | 0 | } |
8409 | | |
8410 | | /* If stripoffset array is already loaded, exit with success */ |
8411 | 0 | if (td->td_stripoffset_p != NULL) |
8412 | 0 | return 1; |
8413 | | |
8414 | | /* If tdir_count was canceled, then we already got there, but in error */ |
8415 | 0 | if (td->td_stripoffset_entry.tdir_count == 0) |
8416 | 0 | return 0; |
8417 | | |
8418 | 0 | if (!TIFFFetchStripThing(tif, &(td->td_stripoffset_entry), td->td_nstrips, |
8419 | 0 | &td->td_stripoffset_p)) |
8420 | 0 | { |
8421 | 0 | return_value = 0; |
8422 | 0 | } |
8423 | |
|
8424 | 0 | if (loadStripByteCount && |
8425 | 0 | !TIFFFetchStripThing(tif, &(td->td_stripbytecount_entry), |
8426 | 0 | td->td_nstrips, &td->td_stripbytecount_p)) |
8427 | 0 | { |
8428 | 0 | return_value = 0; |
8429 | 0 | } |
8430 | |
|
8431 | 0 | _TIFFmemset(&(td->td_stripoffset_entry), 0, sizeof(TIFFDirEntry)); |
8432 | 0 | _TIFFmemset(&(td->td_stripbytecount_entry), 0, sizeof(TIFFDirEntry)); |
8433 | |
|
8434 | | #ifdef STRIPBYTECOUNTSORTED_UNUSED |
8435 | | if (tif->tif_dir.td_nstrips > 1 && return_value == 1) |
8436 | | { |
8437 | | uint32_t strip; |
8438 | | |
8439 | | tif->tif_dir.td_stripbytecountsorted = 1; |
8440 | | for (strip = 1; strip < tif->tif_dir.td_nstrips; strip++) |
8441 | | { |
8442 | | if (tif->tif_dir.td_stripoffset_p[strip - 1] > |
8443 | | tif->tif_dir.td_stripoffset_p[strip]) |
8444 | | { |
8445 | | tif->tif_dir.td_stripbytecountsorted = 0; |
8446 | | break; |
8447 | | } |
8448 | | } |
8449 | | } |
8450 | | #endif |
8451 | |
|
8452 | 0 | return return_value; |
8453 | 0 | } |