/src/openssl30/crypto/asn1/asn1_lib.c

Source
/*
 * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#include <stdio.h>
#include <limits.h>
#include "internal/cryptlib.h"
#include <openssl/asn1.h>
#include "asn1_local.h"

static int asn1_get_length(const unsigned char **pp, int *inf, long *rl,
    long max);
static void asn1_put_length(unsigned char **pp, int length);

static int _asn1_check_infinite_end(const unsigned char **p, long len)
{
    /*
     * If there is 0 or 1 byte left, the length check should pick things up
     */
    if (len <= 0) {
        return 1;
    } else {
        if ((len >= 2) && ((*p)[0] == 0) && ((*p)[1] == 0)) {
            (*p) += 2;
            return 1;
        }
    }
    return 0;
}

int ASN1_check_infinite_end(unsigned char **p, long len)
{
    return _asn1_check_infinite_end((const unsigned char **)p, len);
}

int ASN1_const_check_infinite_end(const unsigned char **p, long len)
{
    return _asn1_check_infinite_end(p, len);
}

int ASN1_get_object(const unsigned char **pp, long *plength, int *ptag,
    int *pclass, long omax)
{
    int i, ret;
    long len;
    const unsigned char *p = *pp;
    int tag, xclass, inf;
    long max = omax;

    if (omax <= 0) {
        ERR_raise(ERR_LIB_ASN1, ASN1_R_TOO_SMALL);
        return 0x80;
    }
    ret = (*p & V_ASN1_CONSTRUCTED);
    xclass = (*p & V_ASN1_PRIVATE);
    i = *p & V_ASN1_PRIMITIVE_TAG;
    if (i == V_ASN1_PRIMITIVE_TAG) { /* high-tag */
        p++;
        if (--max == 0)
            goto err;
        len = 0;
        while (*p & 0x80) {
            len <<= 7L;
            len |= *(p++) & 0x7f;
            if (--max == 0)
                goto err;
            if (len > (INT_MAX >> 7L))
                goto err;
        }
        len <<= 7L;
        len |= *(p++) & 0x7f;
        tag = (int)len;
        if (--max == 0)
            goto err;
    } else {
        tag = i;
        p++;
        if (--max == 0)
            goto err;
    }
    *ptag = tag;
    *pclass = xclass;
    if (!asn1_get_length(&p, &inf, plength, max))
        goto err;

    if (inf && !(ret & V_ASN1_CONSTRUCTED))
        goto err;

    if (*plength > (omax - (p - *pp))) {
        ERR_raise(ERR_LIB_ASN1, ASN1_R_TOO_LONG);
        /*
         * Set this so that even if things are not long enough the values are
         * set correctly
         */
        ret |= 0x80;
    }
    *pp = p;
    return ret | inf;
err:
    ERR_raise(ERR_LIB_ASN1, ASN1_R_HEADER_TOO_LONG);
    return 0x80;
}

/*
 * Decode a length field.
 * The short form is a single byte defining a length 0 - 127.
 * The long form is a byte 0 - 127 with the top bit set and this indicates
 * the number of following octets that contain the length.  These octets
 * are stored most significant digit first.
 */
static int asn1_get_length(const unsigned char **pp, int *inf, long *rl,
    long max)
{
    const unsigned char *p = *pp;
    unsigned long ret = 0;
    int i;

    if (max-- < 1)
        return 0;
    if (*p == 0x80) {
        *inf = 1;
        p++;
    } else {
        *inf = 0;
        i = *p & 0x7f;
        if (*p++ & 0x80) {
            if (max < i + 1)
                return 0;
            /* Skip leading zeroes */
            while (i > 0 && *p == 0) {
                p++;
                i--;
            }
            if (i > (int)sizeof(long))
                return 0;
            while (i > 0) {
                ret <<= 8;
                ret |= *p++;
                i--;
            }
            if (ret > LONG_MAX)
                return 0;
        } else {
            ret = i;
        }
    }
    *pp = p;
    *rl = (long)ret;
    return 1;
}

/*
 * constructed == 2 for indefinite length constructed
 */
void ASN1_put_object(unsigned char **pp, int constructed, int length, int tag,
    int xclass)
{
    unsigned char *p = *pp;
    int i, ttag;

    i = (constructed) ? V_ASN1_CONSTRUCTED : 0;
    i |= (xclass & V_ASN1_PRIVATE);
    if (tag < 31) {
        *(p++) = i | (tag & V_ASN1_PRIMITIVE_TAG);
    } else {
        *(p++) = i | V_ASN1_PRIMITIVE_TAG;
        for (i = 0, ttag = tag; ttag > 0; i++)
            ttag >>= 7;
        ttag = i;
        while (i-- > 0) {
            p[i] = tag & 0x7f;
            if (i != (ttag - 1))
                p[i] |= 0x80;
            tag >>= 7;
        }
        p += ttag;
    }
    if (constructed == 2)
        *(p++) = 0x80;
    else
        asn1_put_length(&p, length);
    *pp = p;
}

int ASN1_put_eoc(unsigned char **pp)
{
    unsigned char *p = *pp;

    *p++ = 0;
    *p++ = 0;
    *pp = p;
    return 2;
}

static void asn1_put_length(unsigned char **pp, int length)
{
    unsigned char *p = *pp;
    int i, len;

    if (length <= 127) {
        *(p++) = (unsigned char)length;
    } else {
        len = length;
        for (i = 0; len > 0; i++)
            len >>= 8;
        *(p++) = i | 0x80;
        len = i;
        while (i-- > 0) {
            p[i] = length & 0xff;
            length >>= 8;
        }
        p += len;
    }
    *pp = p;
}

int ASN1_object_size(int constructed, int length, int tag)
{
    int ret = 1;

    if (length < 0)
        return -1;
    if (tag >= 31) {
        while (tag > 0) {
            tag >>= 7;
            ret++;
        }
    }
    if (constructed == 2) {
        ret += 3;
    } else {
        ret++;
        if (length > 127) {
            int tmplen = length;
            while (tmplen > 0) {
                tmplen >>= 8;
                ret++;
            }
        }
    }
    if (ret >= INT_MAX - length)
        return -1;
    return ret + length;
}

int ASN1_STRING_copy(ASN1_STRING *dst, const ASN1_STRING *str)
{
    if (str == NULL)
        return 0;
    dst->type = str->type;
    if (!ASN1_STRING_set(dst, str->data, str->length))
        return 0;
    /* Copy flags but preserve embed value */
    dst->flags &= ASN1_STRING_FLAG_EMBED;
    dst->flags |= str->flags & ~ASN1_STRING_FLAG_EMBED;
    return 1;
}

ASN1_STRING *ASN1_STRING_dup(const ASN1_STRING *str)
{
    ASN1_STRING *ret;

    if (!str)
        return NULL;
    ret = ASN1_STRING_new();
    if (ret == NULL)
        return NULL;
    if (!ASN1_STRING_copy(ret, str)) {
        ASN1_STRING_free(ret);
        return NULL;
    }
    return ret;
}

int ASN1_STRING_set(ASN1_STRING *str, const void *_data, int len_in)
{
    unsigned char *c;
    const char *data = _data;
    size_t len;

    if (len_in < 0) {
        if (data == NULL)
            return 0;
        len = strlen(data);
    } else {
        len = (size_t)len_in;
    }
    /*
     * Verify that the length fits within an integer for assignment to
     * str->length below.  The additional 1 is subtracted to allow for the
     * '\0' terminator even though this isn't strictly necessary.
     */
    if (len > INT_MAX - 1) {
        ERR_raise(ERR_LIB_ASN1, ASN1_R_TOO_LARGE);
        return 0;
    }
    if ((size_t)str->length <= len || str->data == NULL) {
        c = str->data;
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
        /* No NUL terminator in fuzzing builds */
        str->data = OPENSSL_realloc(c, len != 0 ? len : 1);
#else
        str->data = OPENSSL_realloc(c, len + 1);
#endif
        if (str->data == NULL) {
            ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
            str->data = c;
            return 0;
        }
    }
    str->length = len;
    if (data != NULL) {
        memcpy(str->data, data, len);
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
        /* Set the unused byte to something non NUL and printable. */
        if (len == 0)
            str->data[len] = '~';
#else
        /*
         * Add a NUL terminator. This should not be necessary - but we add it as
         * a safety precaution
         */
        str->data[len] = '\0';
#endif
    }
    return 1;
}

void ASN1_STRING_set0(ASN1_STRING *str, void *data, int len)
{
    OPENSSL_free(str->data);
    str->data = data;
    str->length = len;
}

ASN1_STRING *ASN1_STRING_new(void)
{
    return ASN1_STRING_type_new(V_ASN1_OCTET_STRING);
}

ASN1_STRING *ASN1_STRING_type_new(int type)
{
    ASN1_STRING *ret;

    ret = OPENSSL_zalloc(sizeof(*ret));
    if (ret == NULL) {
        ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
        return NULL;
    }
    ret->type = type;
    return ret;
}

void ossl_asn1_string_embed_free(ASN1_STRING *a, int embed)
{
    if (a == NULL)
        return;
    if (!(a->flags & ASN1_STRING_FLAG_NDEF))
        OPENSSL_free(a->data);
    if (embed == 0)
        OPENSSL_free(a);
}

void ASN1_STRING_free(ASN1_STRING *a)
{
    if (a == NULL)
        return;
    ossl_asn1_string_embed_free(a, a->flags & ASN1_STRING_FLAG_EMBED);
}

void ASN1_STRING_clear_free(ASN1_STRING *a)
{
    if (a == NULL)
        return;
    if (a->data && !(a->flags & ASN1_STRING_FLAG_NDEF))
        OPENSSL_cleanse(a->data, a->length);
    ASN1_STRING_free(a);
}

int ASN1_STRING_cmp(const ASN1_STRING *a, const ASN1_STRING *b)
{
    int i;

    i = (a->length - b->length);
    if (i == 0) {
        if (a->length != 0)
            i = memcmp(a->data, b->data, a->length);
        if (i == 0)
            return a->type - b->type;
        else
            return i;
    } else {
        return i;
    }
}

int ASN1_STRING_length(const ASN1_STRING *x)
{
    return x->length;
}

#ifndef OPENSSL_NO_DEPRECATED_3_0
void ASN1_STRING_length_set(ASN1_STRING *x, int len)
{
    x->length = len;
}
#endif

int ASN1_STRING_type(const ASN1_STRING *x)
{
    return x->type;
}

const unsigned char *ASN1_STRING_get0_data(const ASN1_STRING *x)
{
    return x->data;
}

#ifndef OPENSSL_NO_DEPRECATED_1_1_0
unsigned char *ASN1_STRING_data(ASN1_STRING *x)
{
    return x->data;
}
#endif

/* |max_len| excludes NUL terminator and may be 0 to indicate no restriction */
char *ossl_sk_ASN1_UTF8STRING2text(STACK_OF(ASN1_UTF8STRING) *text,
    const char *sep, size_t max_len)
{
    int i;
    ASN1_UTF8STRING *current;
    size_t length = 0, sep_len;
    char *result = NULL;
    char *p;

    if (sep == NULL)
        sep = "";
    sep_len = strlen(sep);

    for (i = 0; i < sk_ASN1_UTF8STRING_num(text); i++) {
        current = sk_ASN1_UTF8STRING_value(text, i);
        if (i > 0)
            length += sep_len;
        length += ASN1_STRING_length(current);
        if (max_len != 0 && length > max_len)
            return NULL;
    }
    if ((result = OPENSSL_malloc(length + 1)) == NULL)
        return NULL;

    p = result;
    for (i = 0; i < sk_ASN1_UTF8STRING_num(text); i++) {
        current = sk_ASN1_UTF8STRING_value(text, i);
        length = ASN1_STRING_length(current);
        if (i > 0 && sep_len > 0) {
            strncpy(p, sep, sep_len + 1); /* using + 1 to silence gcc warning */
            p += sep_len;
        }
        strncpy(p, (const char *)ASN1_STRING_get0_data(current), length);
        p += length;
    }
    *p = '\0';

    return result;
}

Coverage Report

Created: 2026-04-01 06:39

Line	Count	Source
1		/*
2		* Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
3		*
4		* Licensed under the Apache License 2.0 (the "License"). You may not use
5		* this file except in compliance with the License. You can obtain a copy
6		* in the file LICENSE in the source distribution or at
7		* https://www.openssl.org/source/license.html
8		*/
9
10		#include <stdio.h>
11		#include <limits.h>
12		#include "internal/cryptlib.h"
13		#include <openssl/asn1.h>
14		#include "asn1_local.h"
15
16		static int asn1_get_length(const unsigned char *pp, int inf, long *rl,
17		long max);
18		static void asn1_put_length(unsigned char **pp, int length);
19
20		static int _asn1_check_infinite_end(const unsigned char **p, long len)
21	0	{
22		/*
23		* If there is 0 or 1 byte left, the length check should pick things up
24		*/
25	0	if (len <= 0) {
26	0	return 1;
27	0	} else {
28	0	if ((len >= 2) && ((p)[0] == 0) && ((p)[1] == 0)) {
29	0	(*p) += 2;
30	0	return 1;
31	0	}
32	0	}
33	0	return 0;
34	0	}
35
36		int ASN1_check_infinite_end(unsigned char **p, long len)
37	0	{
38	0	return _asn1_check_infinite_end((const unsigned char **)p, len);
39	0	}
40
41		int ASN1_const_check_infinite_end(const unsigned char **p, long len)
42	0	{
43	0	return _asn1_check_infinite_end(p, len);
44	0	}
45
46		int ASN1_get_object(const unsigned char *pp, long plength, int *ptag,
47		int *pclass, long omax)
48	2.84G	{
49	2.84G	int i, ret;
50	2.84G	long len;
51	2.84G	const unsigned char p = pp;
52	2.84G	int tag, xclass, inf;
53	2.84G	long max = omax;
54
55	2.84G	if (omax <= 0) {
56	0	ERR_raise(ERR_LIB_ASN1, ASN1_R_TOO_SMALL);
57	0	return 0x80;
58	0	}
59	2.84G	ret = (*p & V_ASN1_CONSTRUCTED);
60	2.84G	xclass = (*p & V_ASN1_PRIVATE);
61	2.84G	i = *p & V_ASN1_PRIMITIVE_TAG;
62	2.84G	if (i == V_ASN1_PRIMITIVE_TAG) { /* high-tag */
63	16.0M	p++;
64	16.0M	if (--max == 0)
65	20.7k	goto err;
66	16.0M	len = 0;
67	82.5M	while (*p & 0x80) {
68	66.5M	len <<= 7L;
69	66.5M	len \|= *(p++) & 0x7f;
70	66.5M	if (--max == 0)
71	22.2k	goto err;
72	66.5M	if (len > (INT_MAX >> 7L))
73	18.3k	goto err;
74	66.5M	}
75	16.0M	len <<= 7L;
76	16.0M	len \|= *(p++) & 0x7f;
77	16.0M	tag = (int)len;
78	16.0M	if (--max == 0)
79	17.9k	goto err;
80	2.83G	} else {
81	2.83G	tag = i;
82	2.83G	p++;
83	2.83G	if (--max == 0)
84	233k	goto err;
85	2.83G	}
86	2.84G	*ptag = tag;
87	2.84G	*pclass = xclass;
88	2.84G	if (!asn1_get_length(&p, &inf, plength, max))
89	611k	goto err;
90
91	2.84G	if (inf && !(ret & V_ASN1_CONSTRUCTED))
92	52.0k	goto err;
93
94	2.84G	if (plength > (omax - (p - pp))) {
95	165M	ERR_raise(ERR_LIB_ASN1, ASN1_R_TOO_LONG);
96		/*
97		* Set this so that even if things are not long enough the values are
98		* set correctly
99		*/
100	165M	ret \|= 0x80;
101	165M	}
102	2.84G	*pp = p;
103	2.84G	return ret \| inf;
104	976k	err:
105	976k	ERR_raise(ERR_LIB_ASN1, ASN1_R_HEADER_TOO_LONG);
106	976k	return 0x80;
107	2.84G	}
108
109		/*
110		* Decode a length field.
111		* The short form is a single byte defining a length 0 - 127.
112		* The long form is a byte 0 - 127 with the top bit set and this indicates
113		* the number of following octets that contain the length. These octets
114		* are stored most significant digit first.
115		*/
116		static int asn1_get_length(const unsigned char *pp, int inf, long *rl,
117		long max)
118	2.84G	{
119	2.84G	const unsigned char p = pp;
120	2.84G	unsigned long ret = 0;
121	2.84G	int i;
122
123	2.84G	if (max-- < 1)
124	0	return 0;
125	2.84G	if (*p == 0x80) {
126	733M	*inf = 1;
127	733M	p++;
128	2.11G	} else {
129	2.11G	*inf = 0;
130	2.11G	i = *p & 0x7f;
131	2.11G	if (*p++ & 0x80) {
132	35.8M	if (max < i + 1)
133	476k	return 0;
134		/* Skip leading zeroes */
135	37.6M	while (i > 0 && *p == 0) {
136	2.22M	p++;
137	2.22M	i--;
138	2.22M	}
139	35.3M	if (i > (int)sizeof(long))
140	51.6k	return 0;
141	76.1M	while (i > 0) {
142	40.8M	ret <<= 8;
143	40.8M	ret \|= *p++;
144	40.8M	i--;
145	40.8M	}
146	35.3M	if (ret > LONG_MAX)
147	83.1k	return 0;
148	2.07G	} else {
149	2.07G	ret = i;
150	2.07G	}
151	2.11G	}
152	2.84G	*pp = p;
153	2.84G	*rl = (long)ret;
154	2.84G	return 1;
155	2.84G	}
156
157		/*
158		* constructed == 2 for indefinite length constructed
159		*/
160		void ASN1_put_object(unsigned char **pp, int constructed, int length, int tag,
161		int xclass)
162	102M	{
163	102M	unsigned char p = pp;
164	102M	int i, ttag;
165
166	102M	i = (constructed) ? V_ASN1_CONSTRUCTED : 0;
167	102M	i \|= (xclass & V_ASN1_PRIVATE);
168	102M	if (tag < 31) {
169	101M	*(p++) = i \| (tag & V_ASN1_PRIMITIVE_TAG);
170	101M	} else {
171	234k	*(p++) = i \| V_ASN1_PRIMITIVE_TAG;
172	548k	for (i = 0, ttag = tag; ttag > 0; i++)
173	313k	ttag >>= 7;
174	234k	ttag = i;
175	548k	while (i-- > 0) {
176	313k	p[i] = tag & 0x7f;
177	313k	if (i != (ttag - 1))
178	78.8k	p[i] \|= 0x80;
179	313k	tag >>= 7;
180	313k	}
181	234k	p += ttag;
182	234k	}
183	102M	if (constructed == 2)
184	0	*(p++) = 0x80;
185	102M	else
186	102M	asn1_put_length(&p, length);
187	102M	*pp = p;
188	102M	}
189
190		int ASN1_put_eoc(unsigned char **pp)
191	0	{
192	0	unsigned char p = pp;
193
194	0	*p++ = 0;
195	0	*p++ = 0;
196	0	*pp = p;
197	0	return 2;
198	0	}
199
200		static void asn1_put_length(unsigned char **pp, int length)
201	102M	{
202	102M	unsigned char p = pp;
203	102M	int i, len;
204
205	102M	if (length <= 127) {
206	100M	*(p++) = (unsigned char)length;
207	100M	} else {
208	1.36M	len = length;
209	3.71M	for (i = 0; len > 0; i++)
210	2.35M	len >>= 8;
211	1.36M	*(p++) = i \| 0x80;
212	1.36M	len = i;
213	3.71M	while (i-- > 0) {
214	2.35M	p[i] = length & 0xff;
215	2.35M	length >>= 8;
216	2.35M	}
217	1.36M	p += len;
218	1.36M	}
219	102M	*pp = p;
220	102M	}
221
222		int ASN1_object_size(int constructed, int length, int tag)
223	399M	{
224	399M	int ret = 1;
225
226	399M	if (length < 0)
227	0	return -1;
228	399M	if (tag >= 31) {
229	4.72M	while (tag > 0) {
230	2.60M	tag >>= 7;
231	2.60M	ret++;
232	2.60M	}
233	2.11M	}
234	399M	if (constructed == 2) {
235	0	ret += 3;
236	399M	} else {
237	399M	ret++;
238	399M	if (length > 127) {
239	4.52M	int tmplen = length;
240	12.1M	while (tmplen > 0) {
241	7.64M	tmplen >>= 8;
242	7.64M	ret++;
243	7.64M	}
244	4.52M	}
245	399M	}
246	399M	if (ret >= INT_MAX - length)
247	0	return -1;
248	399M	return ret + length;
249	399M	}
250
251		int ASN1_STRING_copy(ASN1_STRING dst, const ASN1_STRING str)
252	12.1M	{
253	12.1M	if (str == NULL)
254	0	return 0;
255	12.1M	dst->type = str->type;
256	12.1M	if (!ASN1_STRING_set(dst, str->data, str->length))
257	0	return 0;
258		/* Copy flags but preserve embed value */
259	12.1M	dst->flags &= ASN1_STRING_FLAG_EMBED;
260	12.1M	dst->flags \|= str->flags & ~ASN1_STRING_FLAG_EMBED;
261	12.1M	return 1;
262	12.1M	}
263
264		ASN1_STRING ASN1_STRING_dup(const ASN1_STRING str)
265	130k	{
266	130k	ASN1_STRING *ret;
267
268	130k	if (!str)
269	0	return NULL;
270	130k	ret = ASN1_STRING_new();
271	130k	if (ret == NULL)
272	0	return NULL;
273	130k	if (!ASN1_STRING_copy(ret, str)) {
274	0	ASN1_STRING_free(ret);
275	0	return NULL;
276	0	}
277	130k	return ret;
278	130k	}
279
280		int ASN1_STRING_set(ASN1_STRING str, const void _data, int len_in)
281	95.4M	{
282	95.4M	unsigned char *c;
283	95.4M	const char *data = _data;
284	95.4M	size_t len;
285
286	95.4M	if (len_in < 0) {
287	121k	if (data == NULL)
288	0	return 0;
289	121k	len = strlen(data);
290	95.2M	} else {
291	95.2M	len = (size_t)len_in;
292	95.2M	}
293		/*
294		* Verify that the length fits within an integer for assignment to
295		* str->length below. The additional 1 is subtracted to allow for the
296		* '\0' terminator even though this isn't strictly necessary.
297		*/
298	95.4M	if (len > INT_MAX - 1) {
299	0	ERR_raise(ERR_LIB_ASN1, ASN1_R_TOO_LARGE);
300	0	return 0;
301	0	}
302	95.4M	if ((size_t)str->length <= len \|\| str->data == NULL) {
303	95.4M	c = str->data;
304	95.4M	#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
305		/* No NUL terminator in fuzzing builds */
306	95.4M	str->data = OPENSSL_realloc(c, len != 0 ? len : 1);
307		#else
308		str->data = OPENSSL_realloc(c, len + 1);
309		#endif
310	95.4M	if (str->data == NULL) {
311	0	ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
312	0	str->data = c;
313	0	return 0;
314	0	}
315	95.4M	}
316	95.4M	str->length = len;
317	95.4M	if (data != NULL) {
318	81.6M	memcpy(str->data, data, len);
319	81.6M	#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
320		/* Set the unused byte to something non NUL and printable. */
321	81.6M	if (len == 0)
322	19.5M	str->data[len] = '~';
323		#else
324		/*
325		* Add a NUL terminator. This should not be necessary - but we add it as
326		* a safety precaution
327		*/
328		str->data[len] = '\0';
329		#endif
330	81.6M	}
331	95.4M	return 1;
332	95.4M	}
333
334		void ASN1_STRING_set0(ASN1_STRING str, void data, int len)
335	23.6M	{
336	23.6M	OPENSSL_free(str->data);
337	23.6M	str->data = data;
338	23.6M	str->length = len;
339	23.6M	}
340
341		ASN1_STRING *ASN1_STRING_new(void)
342	150k	{
343	150k	return ASN1_STRING_type_new(V_ASN1_OCTET_STRING);
344	150k	}
345
346		ASN1_STRING *ASN1_STRING_type_new(int type)
347	121M	{
348	121M	ASN1_STRING *ret;
349
350	121M	ret = OPENSSL_zalloc(sizeof(*ret));
351	121M	if (ret == NULL) {
352	0	ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
353	0	return NULL;
354	0	}
355	121M	ret->type = type;
356	121M	return ret;
357	121M	}
358
359		void ossl_asn1_string_embed_free(ASN1_STRING *a, int embed)
360	129M	{
361	129M	if (a == NULL)
362	0	return;
363	129M	if (!(a->flags & ASN1_STRING_FLAG_NDEF))
364	129M	OPENSSL_free(a->data);
365	129M	if (embed == 0)
366	121M	OPENSSL_free(a);
367	129M	}
368
369		void ASN1_STRING_free(ASN1_STRING *a)
370	26.3M	{
371	26.3M	if (a == NULL)
372	20.3M	return;
373	5.95M	ossl_asn1_string_embed_free(a, a->flags & ASN1_STRING_FLAG_EMBED);
374	5.95M	}
375
376		void ASN1_STRING_clear_free(ASN1_STRING *a)
377	3.79k	{
378	3.79k	if (a == NULL)
379	133	return;
380	3.66k	if (a->data && !(a->flags & ASN1_STRING_FLAG_NDEF))
381	3.66k	OPENSSL_cleanse(a->data, a->length);
382	3.66k	ASN1_STRING_free(a);
383	3.66k	}
384
385		int ASN1_STRING_cmp(const ASN1_STRING a, const ASN1_STRING b)
386	42.1k	{
387	42.1k	int i;
388
389	42.1k	i = (a->length - b->length);
390	42.1k	if (i == 0) {
391	39.6k	if (a->length != 0)
392	39.4k	i = memcmp(a->data, b->data, a->length);
393	39.6k	if (i == 0)
394	30.2k	return a->type - b->type;
395	9.42k	else
396	9.42k	return i;
397	39.6k	} else {
398	2.43k	return i;
399	2.43k	}
400	42.1k	}
401
402		int ASN1_STRING_length(const ASN1_STRING *x)
403	3.84M	{
404	3.84M	return x->length;
405	3.84M	}
406
407		#ifndef OPENSSL_NO_DEPRECATED_3_0
408		void ASN1_STRING_length_set(ASN1_STRING *x, int len)
409	0	{
410	0	x->length = len;
411	0	}
412		#endif
413
414		int ASN1_STRING_type(const ASN1_STRING *x)
415	0	{
416	0	return x->type;
417	0	}
418
419		const unsigned char ASN1_STRING_get0_data(const ASN1_STRING x)
420	3.94M	{
421	3.94M	return x->data;
422	3.94M	}
423
424		#ifndef OPENSSL_NO_DEPRECATED_1_1_0
425		unsigned char ASN1_STRING_data(ASN1_STRING x)
426	0	{
427	0	return x->data;
428	0	}
429		#endif
430
431		/* \|max_len\| excludes NUL terminator and may be 0 to indicate no restriction */
432		char ossl_sk_ASN1_UTF8STRING2text(STACK_OF(ASN1_UTF8STRING) text,
433		const char *sep, size_t max_len)
434	0	{
435	0	int i;
436	0	ASN1_UTF8STRING *current;
437	0	size_t length = 0, sep_len;
438	0	char *result = NULL;
439	0	char *p;
440
441	0	if (sep == NULL)
442	0	sep = "";
443	0	sep_len = strlen(sep);
444
445	0	for (i = 0; i < sk_ASN1_UTF8STRING_num(text); i++) {
446	0	current = sk_ASN1_UTF8STRING_value(text, i);
447	0	if (i > 0)
448	0	length += sep_len;
449	0	length += ASN1_STRING_length(current);
450	0	if (max_len != 0 && length > max_len)
451	0	return NULL;
452	0	}
453	0	if ((result = OPENSSL_malloc(length + 1)) == NULL)
454	0	return NULL;
455
456	0	p = result;
457	0	for (i = 0; i < sk_ASN1_UTF8STRING_num(text); i++) {
458	0	current = sk_ASN1_UTF8STRING_value(text, i);
459	0	length = ASN1_STRING_length(current);
460	0	if (i > 0 && sep_len > 0) {
461	0	strncpy(p, sep, sep_len + 1); /* using + 1 to silence gcc warning */
462	0	p += sep_len;
463	0	}
464	0	strncpy(p, (const char *)ASN1_STRING_get0_data(current), length);
465	0	p += length;
466	0	}
467	0	*p = '\0';
468
469	0	return result;
470	0	}