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

Source (jump to first uncovered line)
/*
 * 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: 2023-09-25 06:45

Line	Count	Source (jump to first uncovered line)
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	861M	{
49	861M	int i, ret;
50	861M	long len;
51	861M	const unsigned char p = pp;
52	861M	int tag, xclass, inf;
53	861M	long max = omax;
54
55	861M	if (omax <= 0) {
56	0	ERR_raise(ERR_LIB_ASN1, ASN1_R_TOO_SMALL);
57	0	return 0x80;
58	0	}
59	861M	ret = (*p & V_ASN1_CONSTRUCTED);
60	861M	xclass = (*p & V_ASN1_PRIVATE);
61	861M	i = *p & V_ASN1_PRIMITIVE_TAG;
62	861M	if (i == V_ASN1_PRIMITIVE_TAG) { /* high-tag */
63	3.28M	p++;
64	3.28M	if (--max == 0)
65	7.04k	goto err;
66	3.28M	len = 0;
67	5.34M	while (*p & 0x80) {
68	2.08M	len <<= 7L;
69	2.08M	len \|= *(p++) & 0x7f;
70	2.08M	if (--max == 0)
71	5.93k	goto err;
72	2.07M	if (len > (INT_MAX >> 7L))
73	7.35k	goto err;
74	2.07M	}
75	3.26M	len <<= 7L;
76	3.26M	len \|= *(p++) & 0x7f;
77	3.26M	tag = (int)len;
78	3.26M	if (--max == 0)
79	11.1k	goto err;
80	858M	} else {
81	858M	tag = i;
82	858M	p++;
83	858M	if (--max == 0)
84	90.7k	goto err;
85	858M	}
86	861M	*ptag = tag;
87	861M	*pclass = xclass;
88	861M	if (!asn1_get_length(&p, &inf, plength, max))
89	147k	goto err;
90
91	861M	if (inf && !(ret & V_ASN1_CONSTRUCTED))
92	12.3k	goto err;
93
94	861M	if (plength > (omax - (p - pp))) {
95	49.2M	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	49.2M	ret \|= 0x80;
101	49.2M	}
102	861M	*pp = p;
103	861M	return ret \| inf;
104	282k	err:
105	282k	ERR_raise(ERR_LIB_ASN1, ASN1_R_HEADER_TOO_LONG);
106	282k	return 0x80;
107	861M	}
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	997M	{
119	997M	const unsigned char p = pp;
120	997M	unsigned long ret = 0;
121	997M	int i;
122
123	997M	if (max-- < 1)
124	0	return 0;
125	997M	if (*p == 0x80) {
126	182M	*inf = 1;
127	182M	p++;
128	815M	} else {
129	815M	*inf = 0;
130	815M	i = *p & 0x7f;
131	815M	if (*p++ & 0x80) {
132	11.8M	if (max < i + 1)
133	138k	return 0;
134		/* Skip leading zeroes */
135	12.6M	while (i > 0 && *p == 0) {
136	940k	p++;
137	940k	i--;
138	940k	}
139	11.7M	if (i > (int)sizeof(long))
140	11.3k	return 0;
141	24.7M	while (i > 0) {
142	13.0M	ret <<= 8;
143	13.0M	ret \|= *p++;
144	13.0M	i--;
145	13.0M	}
146	11.6M	if (ret > LONG_MAX)
147	35.3k	return 0;
148	803M	} else {
149	803M	ret = i;
150	803M	}
151	815M	}
152	997M	*pp = p;
153	997M	*rl = (long)ret;
154	997M	return 1;
155	997M	}
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	45.8M	{
163	45.8M	unsigned char p = pp;
164	45.8M	int i, ttag;
165
166	45.8M	i = (constructed) ? V_ASN1_CONSTRUCTED : 0;
167	45.8M	i \|= (xclass & V_ASN1_PRIVATE);
168	45.8M	if (tag < 31) {
169	45.6M	*(p++) = i \| (tag & V_ASN1_PRIMITIVE_TAG);
170	45.6M	} else {
171	222k	*(p++) = i \| V_ASN1_PRIMITIVE_TAG;
172	669k	for (i = 0, ttag = tag; ttag > 0; i++)
173	446k	ttag >>= 7;
174	222k	ttag = i;
175	669k	while (i-- > 0) {
176	446k	p[i] = tag & 0x7f;
177	446k	if (i != (ttag - 1))
178	223k	p[i] \|= 0x80;
179	446k	tag >>= 7;
180	446k	}
181	222k	p += ttag;
182	222k	}
183	45.8M	if (constructed == 2)
184	0	*(p++) = 0x80;
185	45.8M	else
186	45.8M	asn1_put_length(&p, length);
187	45.8M	*pp = p;
188	45.8M	}
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	45.8M	{
202	45.8M	unsigned char p = pp;
203	45.8M	int i, len;
204
205	45.8M	if (length <= 127) {
206	45.2M	*(p++) = (unsigned char)length;
207	45.2M	} else {
208	562k	len = length;
209	1.52M	for (i = 0; len > 0; i++)
210	961k	len >>= 8;
211	562k	*(p++) = i \| 0x80;
212	562k	len = i;
213	1.52M	while (i-- > 0) {
214	961k	p[i] = length & 0xff;
215	961k	length >>= 8;
216	961k	}
217	562k	p += len;
218	562k	}
219	45.8M	*pp = p;
220	45.8M	}
221
222		int ASN1_object_size(int constructed, int length, int tag)
223	186M	{
224	186M	int ret = 1;
225
226	186M	if (length < 0)
227	0	return -1;
228	186M	if (tag >= 31) {
229	2.89M	while (tag > 0) {
230	1.92M	tag >>= 7;
231	1.92M	ret++;
232	1.92M	}
233	966k	}
234	186M	if (constructed == 2) {
235	0	ret += 3;
236	186M	} else {
237	186M	ret++;
238	186M	if (length > 127) {
239	1.94M	int tmplen = length;
240	5.28M	while (tmplen > 0) {
241	3.33M	tmplen >>= 8;
242	3.33M	ret++;
243	3.33M	}
244	1.94M	}
245	186M	}
246	186M	if (ret >= INT_MAX - length)
247	0	return -1;
248	186M	return ret + length;
249	186M	}
250
251		int ASN1_STRING_copy(ASN1_STRING dst, const ASN1_STRING str)
252	4.67M	{
253	4.67M	if (str == NULL)
254	0	return 0;
255	4.67M	dst->type = str->type;
256	4.67M	if (!ASN1_STRING_set(dst, str->data, str->length))
257	0	return 0;
258		/* Copy flags but preserve embed value */
259	4.67M	dst->flags &= ASN1_STRING_FLAG_EMBED;
260	4.67M	dst->flags \|= str->flags & ~ASN1_STRING_FLAG_EMBED;
261	4.67M	return 1;
262	4.67M	}
263
264		ASN1_STRING ASN1_STRING_dup(const ASN1_STRING str)
265	30.4k	{
266	30.4k	ASN1_STRING *ret;
267
268	30.4k	if (!str)
269	0	return NULL;
270	30.4k	ret = ASN1_STRING_new();
271	30.4k	if (ret == NULL)
272	0	return NULL;
273	30.4k	if (!ASN1_STRING_copy(ret, str)) {
274	0	ASN1_STRING_free(ret);
275	0	return NULL;
276	0	}
277	30.4k	return ret;
278	30.4k	}
279
280		int ASN1_STRING_set(ASN1_STRING str, const void _data, int len_in)
281	23.0M	{
282	23.0M	unsigned char *c;
283	23.0M	const char *data = _data;
284	23.0M	size_t len;
285
286	23.0M	if (len_in < 0) {
287	34.8k	if (data == NULL)
288	0	return 0;
289	34.8k	len = strlen(data);
290	22.9M	} else {
291	22.9M	len = (size_t)len_in;
292	22.9M	}
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	23.0M	if (len > INT_MAX - 1) {
299	0	ERR_raise(ERR_LIB_ASN1, ASN1_R_TOO_LARGE);
300	0	return 0;
301	0	}
302	23.0M	if ((size_t)str->length <= len \|\| str->data == NULL) {
303	23.0M	c = str->data;
304	23.0M	#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
305		/* No NUL terminator in fuzzing builds */
306	23.0M	str->data = OPENSSL_realloc(c, len != 0 ? len : 1);
307		#else
308		str->data = OPENSSL_realloc(c, len + 1);
309		#endif
310	23.0M	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	23.0M	}
316	23.0M	str->length = len;
317	23.0M	if (data != NULL) {
318	18.7M	memcpy(str->data, data, len);
319	18.7M	#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
320		/* Set the unused byte to something non NUL and printable. */
321	18.7M	if (len == 0)
322	5.36M	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	18.7M	}
331	23.0M	return 1;
332	23.0M	}
333
334		void ASN1_STRING_set0(ASN1_STRING str, void data, int len)
335	3.86M	{
336	3.86M	OPENSSL_free(str->data);
337	3.86M	str->data = data;
338	3.86M	str->length = len;
339	3.86M	}
340
341		ASN1_STRING *ASN1_STRING_new(void)
342	30.8k	{
343	30.8k	return ASN1_STRING_type_new(V_ASN1_OCTET_STRING);
344	30.8k	}
345
346		ASN1_STRING *ASN1_STRING_type_new(int type)
347	36.9M	{
348	36.9M	ASN1_STRING *ret;
349
350	36.9M	ret = OPENSSL_zalloc(sizeof(*ret));
351	36.9M	if (ret == NULL) {
352	0	ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
353	0	return NULL;
354	0	}
355	36.9M	ret->type = type;
356	36.9M	return ret;
357	36.9M	}
358
359		void ossl_asn1_string_embed_free(ASN1_STRING *a, int embed)
360	24.6M	{
361	24.6M	if (a == NULL)
362	0	return;
363	24.6M	if (!(a->flags & ASN1_STRING_FLAG_NDEF))
364	24.6M	OPENSSL_free(a->data);
365	24.6M	if (embed == 0)
366	22.8M	OPENSSL_free(a);
367	24.6M	}
368
369		void ASN1_STRING_free(ASN1_STRING *a)
370	19.2M	{
371	19.2M	if (a == NULL)
372	16.7M	return;
373	2.49M	ossl_asn1_string_embed_free(a, a->flags & ASN1_STRING_FLAG_EMBED);
374	2.49M	}
375
376		void ASN1_STRING_clear_free(ASN1_STRING *a)
377	958	{
378	958	if (a == NULL)
379	58	return;
380	900	if (a->data && !(a->flags & ASN1_STRING_FLAG_NDEF))
381	900	OPENSSL_cleanse(a->data, a->length);
382	900	ASN1_STRING_free(a);
383	900	}
384
385		int ASN1_STRING_cmp(const ASN1_STRING a, const ASN1_STRING b)
386	1.42k	{
387	1.42k	int i;
388
389	1.42k	i = (a->length - b->length);
390	1.42k	if (i == 0) {
391	1.30k	if (a->length != 0)
392	1.27k	i = memcmp(a->data, b->data, a->length);
393	1.30k	if (i == 0)
394	811	return a->type - b->type;
395	495	else
396	495	return i;
397	1.30k	} else {
398	117	return i;
399	117	}
400	1.42k	}
401
402		int ASN1_STRING_length(const ASN1_STRING *x)
403	1.12M	{
404	1.12M	return x->length;
405	1.12M	}
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	1.17M	{
421	1.17M	return x->data;
422	1.17M	}
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	}