Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/asn1/a_object.c	Lines:	116	192	60.4 %
Date:	2017-11-13	Branches:	56	129	43.4 %


/* $OpenBSD: a_object.c,v 1.30 2017/05/02 03:59:44 deraadt Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 *
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 *
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 *
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#include <limits.h>
#include <stdio.h>
#include <string.h>

#include <openssl/asn1.h>
#include <openssl/bn.h>
#include <openssl/err.h>
#include <openssl/buffer.h>
#include <openssl/objects.h>

int
i2d_ASN1_OBJECT(ASN1_OBJECT *a, unsigned char **pp)
{
	unsigned char *p;
	int objsize;

	if ((a == NULL) || (a->data == NULL))
		return (0);

	objsize = ASN1_object_size(0, a->length, V_ASN1_OBJECT);
	if (pp == NULL)
		return objsize;

	p = *pp;
	ASN1_put_object(&p, 0, a->length, V_ASN1_OBJECT, V_ASN1_UNIVERSAL);
	memcpy(p, a->data, a->length);
	p += a->length;

	*pp = p;
	return (objsize);
}

int
a2d_ASN1_OBJECT(unsigned char *out, int olen, const char *buf, int num)
{
	int i, first, len = 0, c, use_bn;
	char ftmp[24], *tmp = ftmp;
	int tmpsize = sizeof ftmp;
	const char *p;
	unsigned long l;
	BIGNUM *bl = NULL;

	if (num == 0)
		return (0);
	else if (num == -1)
		num = strlen(buf);

	p = buf;
	c = *(p++);
	num--;
	if ((c >= '0') && (c <= '2')) {
		first= c-'0';
	} else {
		ASN1error(ASN1_R_FIRST_NUM_TOO_LARGE);
		goto err;
	}

	if (num <= 0) {
		ASN1error(ASN1_R_MISSING_SECOND_NUMBER);
		goto err;
	}
	c = *(p++);
	num--;
	for (;;) {
		if (num <= 0)
			break;
		if ((c != '.') && (c != ' ')) {
			ASN1error(ASN1_R_INVALID_SEPARATOR);
			goto err;
		}
		l = 0;
		use_bn = 0;
		for (;;) {
			if (num <= 0)
				break;
			num--;
			c = *(p++);
			if ((c == ' ') || (c == '.'))
				break;
			if ((c < '0') || (c > '9')) {
				ASN1error(ASN1_R_INVALID_DIGIT);
				goto err;
			}
			if (!use_bn && l >= ((ULONG_MAX - 80) / 10L)) {
				use_bn = 1;
				if (!bl)
					bl = BN_new();
				if (!bl || !BN_set_word(bl, l))
					goto err;
			}
			if (use_bn) {
				if (!BN_mul_word(bl, 10L) ||
				    !BN_add_word(bl, c-'0'))
					goto err;
			} else
				l = l * 10L + (long)(c - '0');
		}
		if (len == 0) {
			if ((first < 2) && (l >= 40)) {
				ASN1error(ASN1_R_SECOND_NUMBER_TOO_LARGE);
				goto err;
			}
			if (use_bn) {
				if (!BN_add_word(bl, first * 40))
					goto err;
			} else
				l += (long)first * 40;
		}
		i = 0;
		if (use_bn) {
			int blsize;
			blsize = BN_num_bits(bl);
			blsize = (blsize + 6) / 7;
			if (blsize > tmpsize) {
				if (tmp != ftmp)
					free(tmp);
				tmpsize = blsize + 32;
				tmp = malloc(tmpsize);
				if (!tmp)
					goto err;
			}
			while (blsize--)
				tmp[i++] = (unsigned char)BN_div_word(bl, 0x80L);
		} else {

			for (;;) {
				tmp[i++] = (unsigned char)l & 0x7f;
				l >>= 7L;
				if (l == 0L)
					break;
			}

		}
		if (out != NULL) {
			if (len + i > olen) {
				ASN1error(ASN1_R_BUFFER_TOO_SMALL);
				goto err;
			}
			while (--i > 0)
				out[len++] = tmp[i]|0x80;
			out[len++] = tmp[0];
		} else
			len += i;
	}
	if (tmp != ftmp)
		free(tmp);
	BN_free(bl);
	return (len);

err:
	if (tmp != ftmp)
		free(tmp);
	BN_free(bl);
	return (0);
}

int
i2t_ASN1_OBJECT(char *buf, int buf_len, ASN1_OBJECT *a)
{
	return OBJ_obj2txt(buf, buf_len, a, 0);
}

int
i2a_ASN1_OBJECT(BIO *bp, ASN1_OBJECT *a)
{
	char *tmp = NULL;
	size_t tlen = 256;
	int i = -1;

	if ((a == NULL) || (a->data == NULL))
		return(BIO_write(bp, "NULL", 4));
	if ((tmp = malloc(tlen)) == NULL)
		return -1;
	i = i2t_ASN1_OBJECT(tmp, tlen, a);
	if (i > (int)(tlen - 1)) {
		freezero(tmp, tlen);
		if ((tmp = malloc(i + 1)) == NULL)
			return -1;
		tlen = i + 1;
		i = i2t_ASN1_OBJECT(tmp, tlen, a);
	}
	if (i <= 0)
		i = BIO_write(bp, "<INVALID>", 9);
	else
		i = BIO_write(bp, tmp, i);
	freezero(tmp, tlen);
	return (i);
}

ASN1_OBJECT *
d2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp, long length)
{
	const unsigned char *p;
	long len;
	int tag, xclass;
	int inf, i;
	ASN1_OBJECT *ret = NULL;

	p = *pp;
	inf = ASN1_get_object(&p, &len, &tag, &xclass, length);
	if (inf & 0x80) {
		i = ASN1_R_BAD_OBJECT_HEADER;
		goto err;
	}

	if (tag != V_ASN1_OBJECT) {
		i = ASN1_R_EXPECTING_AN_OBJECT;
		goto err;
	}
	ret = c2i_ASN1_OBJECT(a, &p, len);
	if (ret)
		*pp = p;
	return ret;

err:
	ASN1error(i);
	return (NULL);
}

ASN1_OBJECT *
c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp, long len)
{
	ASN1_OBJECT *ret;
	const unsigned char *p;
	unsigned char *data;
	int i, length;

	/*
	 * Sanity check OID encoding:
	 * - need at least one content octet
	 * - MSB must be clear in the last octet
	 * - can't have leading 0x80 in subidentifiers, see: X.690 8.19.2
	 */
	if (len <= 0 || len > INT_MAX || pp == NULL || (p = *pp) == NULL ||
	    p[len - 1] & 0x80) {
		ASN1error(ASN1_R_INVALID_OBJECT_ENCODING);
		return (NULL);
	}

	/* Now 0 < len <= INT_MAX, so the cast is safe. */
	length = (int)len;
	for (i = 0; i < length; i++, p++) {
		if (*p == 0x80 && (!i || !(p[-1] & 0x80))) {
			ASN1error(ASN1_R_INVALID_OBJECT_ENCODING);
			return (NULL);
		}
	}

	/* only the ASN1_OBJECTs from the 'table' will have values
	 * for ->sn or ->ln */
	if ((a == NULL) || ((*a) == NULL) ||
	    !((*a)->flags & ASN1_OBJECT_FLAG_DYNAMIC)) {
		if ((ret = ASN1_OBJECT_new()) == NULL)
			return (NULL);
	} else
		ret = *a;

	p = *pp;

	/* detach data from object */
	data = (unsigned char *)ret->data;
	freezero(data, ret->length);

	data = malloc(length);
	if (data == NULL) {
		ASN1error(ERR_R_MALLOC_FAILURE);
		goto err;
	}

	memcpy(data, p, length);

	/* reattach data to object, after which it remains const */
	ret->data = data;
	ret->length = length;
	ret->sn = NULL;
	ret->ln = NULL;
	ret->flags |= ASN1_OBJECT_FLAG_DYNAMIC_DATA;
	p += length;

	if (a != NULL)
		*a = ret;
	*pp = p;
	return (ret);

err:
	if (a == NULL || ret != *a)
		ASN1_OBJECT_free(ret);
	return (NULL);
}

ASN1_OBJECT *
ASN1_OBJECT_new(void)
{
	ASN1_OBJECT *ret;

	ret = malloc(sizeof(ASN1_OBJECT));
	if (ret == NULL) {
		ASN1error(ERR_R_MALLOC_FAILURE);
		return (NULL);
	}
	ret->length = 0;
	ret->data = NULL;
	ret->nid = 0;
	ret->sn = NULL;
	ret->ln = NULL;
	ret->flags = ASN1_OBJECT_FLAG_DYNAMIC;
	return (ret);
}

void
ASN1_OBJECT_free(ASN1_OBJECT *a)
{
	if (a == NULL)
		return;
	if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_STRINGS) {
		free((void *)a->sn);
		free((void *)a->ln);
		a->sn = a->ln = NULL;
	}
	if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_DATA) {
		freezero((void *)a->data, a->length);
		a->data = NULL;
		a->length = 0;
	}
	if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC)
		free(a);
}

ASN1_OBJECT *
ASN1_OBJECT_create(int nid, unsigned char *data, int len,
    const char *sn, const char *ln)
{
	ASN1_OBJECT o;

	o.sn = sn;
	o.ln = ln;
	o.data = data;
	o.nid = nid;
	o.length = len;
	o.flags = ASN1_OBJECT_FLAG_DYNAMIC | ASN1_OBJECT_FLAG_DYNAMIC_STRINGS |
	    ASN1_OBJECT_FLAG_DYNAMIC_DATA;
	return (OBJ_dup(&o));
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: a_object.c,v 1.30 2017/05/02 03:59:44 deraadt Exp $ */
2			/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3			* All rights reserved.
4			*
5			* This package is an SSL implementation written
6			* by Eric Young (eay@cryptsoft.com).
7			* The implementation was written so as to conform with Netscapes SSL.
8			*
9			* This library is free for commercial and non-commercial use as long as
10			* the following conditions are aheared to. The following conditions
11			* apply to all code found in this distribution, be it the RC4, RSA,
12			* lhash, DES, etc., code; not just the SSL code. The SSL documentation
13			* included with this distribution is covered by the same copyright terms
14			* except that the holder is Tim Hudson (tjh@cryptsoft.com).
15			*
16			* Copyright remains Eric Young's, and as such any Copyright notices in
17			* the code are not to be removed.
18			* If this package is used in a product, Eric Young should be given attribution
19			* as the author of the parts of the library used.
20			* This can be in the form of a textual message at program startup or
21			* in documentation (online or textual) provided with the package.
22			*
23			* Redistribution and use in source and binary forms, with or without
24			* modification, are permitted provided that the following conditions
25			* are met:
26			* 1. Redistributions of source code must retain the copyright
27			* notice, this list of conditions and the following disclaimer.
28			* 2. Redistributions in binary form must reproduce the above copyright
29			* notice, this list of conditions and the following disclaimer in the
30			* documentation and/or other materials provided with the distribution.
31			* 3. All advertising materials mentioning features or use of this software
32			* must display the following acknowledgement:
33			* "This product includes cryptographic software written by
34			* Eric Young (eay@cryptsoft.com)"
35			* The word 'cryptographic' can be left out if the rouines from the library
36			* being used are not cryptographic related :-).
37			* 4. If you include any Windows specific code (or a derivative thereof) from
38			* the apps directory (application code) you must include an acknowledgement:
39			* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40			*
41			* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44			* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51			* SUCH DAMAGE.
52			*
53			* The licence and distribution terms for any publically available version or
54			* derivative of this code cannot be changed. i.e. this code cannot simply be
55			* copied and put under another distribution licence
56			* [including the GNU Public Licence.]
57			*/
58
59			#include <limits.h>
60			#include <stdio.h>
61			#include <string.h>
62
63			#include <openssl/asn1.h>
64			#include <openssl/bn.h>
65			#include <openssl/err.h>
66			#include <openssl/buffer.h>
67			#include <openssl/objects.h>
68
69			int
70			i2d_ASN1_OBJECT(ASN1_OBJECT a, unsigned char *pp)
71			{
72			unsigned char *p;
73			int objsize;
74
75			if ((a == NULL) \|\| (a->data == NULL))
76			return (0);
77
78			objsize = ASN1_object_size(0, a->length, V_ASN1_OBJECT);
79			if (pp == NULL)
80			return objsize;
81
82			p = *pp;
83			ASN1_put_object(&p, 0, a->length, V_ASN1_OBJECT, V_ASN1_UNIVERSAL);
84			memcpy(p, a->data, a->length);
85			p += a->length;
86
87			*pp = p;
88			return (objsize);
89			}
90
91			int
92			a2d_ASN1_OBJECT(unsigned char out, int olen, const char buf, int num)
93			{
94			int i, first, len = 0, c, use_bn;
95		432	char ftmp[24], *tmp = ftmp;
96			int tmpsize = sizeof ftmp;
97			const char *p;
98			unsigned long l;
99			BIGNUM *bl = NULL;
100
101	✗✓	216	if (num == 0)
102			return (0);
103	✓✗	216	else if (num == -1)
104		216	num = strlen(buf);
105
106			p = buf;
107		216	c = *(p++);
108		216	num--;
109	✓✓	216	if ((c >= '0') && (c <= '2')) {
110		214	first= c-'0';
111			} else {
112		2	ASN1error(ASN1_R_FIRST_NUM_TOO_LARGE);
113		2	goto err;
114			}
115
116	✗✓	214	if (num <= 0) {
117			ASN1error(ASN1_R_MISSING_SECOND_NUMBER);
118			goto err;
119			}
120		214	c = *(p++);
121		214	num--;
122		1122	for (;;) {
123	✓✓	1122	if (num <= 0)
124			break;
125	✗✓	908	if ((c != '.') && (c != ' ')) {
126			ASN1error(ASN1_R_INVALID_SEPARATOR);
127			goto err;
128			}
129			l = 0;
130			use_bn = 0;
131		1952	for (;;) {
132	✓✓	1952	if (num <= 0)
133			break;
134		1738	num--;
135		1738	c = *(p++);
136	✓✓	1738	if ((c == ' ') \|\| (c == '.'))
137			break;
138	✗✓	1044	if ((c < '0') \|\| (c > '9')) {
139			ASN1error(ASN1_R_INVALID_DIGIT);
140			goto err;
141			}
142	✗✓	1044	if (!use_bn && l >= ((ULONG_MAX - 80) / 10L)) {
143			use_bn = 1;
144			if (!bl)
145			bl = BN_new();
146			if (!bl \|\| !BN_set_word(bl, l))
147			goto err;
148			}
149	✗✓	1044	if (use_bn) {
150			if (!BN_mul_word(bl, 10L) \|\|
151			!BN_add_word(bl, c-'0'))
152			goto err;
153			} else
154		1044	l = l * 10L + (long)(c - '0');
155			}
156	✓✓	908	if (len == 0) {
157	✗✓	214	if ((first < 2) && (l >= 40)) {
158			ASN1error(ASN1_R_SECOND_NUMBER_TOO_LARGE);
159			goto err;
160			}
161	✗✓	214	if (use_bn) {
162			if (!BN_add_word(bl, first * 40))
163			goto err;
164			} else
165		214	l += (long)first * 40;
166			}
167			i = 0;
168	✗✓	908	if (use_bn) {
169			int blsize;
170			blsize = BN_num_bits(bl);
171			blsize = (blsize + 6) / 7;
172			if (blsize > tmpsize) {
173			if (tmp != ftmp)
174			free(tmp);
175			tmpsize = blsize + 32;
176			tmp = malloc(tmpsize);
177			if (!tmp)
178			goto err;
179			}
180			while (blsize--)
181			tmp[i++] = (unsigned char)BN_div_word(bl, 0x80L);
182			} else {
183
184		976	for (;;) {
185		976	tmp[i++] = (unsigned char)l & 0x7f;
186		976	l >>= 7L;
187	✓✓	976	if (l == 0L)
188			break;
189			}
190
191			}
192	✓✓	908	if (out != NULL) {
193	✗✓	454	if (len + i > olen) {
194			ASN1error(ASN1_R_BUFFER_TOO_SMALL);
195			goto err;
196			}
197	✓✓	976	while (--i > 0)
198		34	out[len++] = tmp[i]\|0x80;
199		454	out[len++] = tmp[0];
200		454	} else
201		454	len += i;
202			}
203	✗✓	214	if (tmp != ftmp)
204			free(tmp);
205		214	BN_free(bl);
206		214	return (len);
207
208			err:
209	✗✓	2	if (tmp != ftmp)
210			free(tmp);
211		2	BN_free(bl);
212		2	return (0);
213		216	}
214
215			int
216			i2t_ASN1_OBJECT(char buf, int buf_len, ASN1_OBJECT a)
217			{
218		448	return OBJ_obj2txt(buf, buf_len, a, 0);
219			}
220
221			int
222			i2a_ASN1_OBJECT(BIO bp, ASN1_OBJECT a)
223			{
224			char *tmp = NULL;
225			size_t tlen = 256;
226			int i = -1;
227
228	✓✗✗✓	636	if ((a == NULL) \|\| (a->data == NULL))
229			return(BIO_write(bp, "NULL", 4));
230	✗✓	212	if ((tmp = malloc(tlen)) == NULL)
231			return -1;
232		212	i = i2t_ASN1_OBJECT(tmp, tlen, a);
233	✗✓	212	if (i > (int)(tlen - 1)) {
234			freezero(tmp, tlen);
235			if ((tmp = malloc(i + 1)) == NULL)
236			return -1;
237			tlen = i + 1;
238			i = i2t_ASN1_OBJECT(tmp, tlen, a);
239			}
240	✗✓	212	if (i <= 0)
241			i = BIO_write(bp, "<INVALID>", 9);
242			else
243		212	i = BIO_write(bp, tmp, i);
244		212	freezero(tmp, tlen);
245		212	return (i);
246		212	}
247
248			ASN1_OBJECT *
249			d2i_ASN1_OBJECT(ASN1_OBJECT a, const unsigned char pp, long length)
250			{
251			const unsigned char *p;
252			long len;
253			int tag, xclass;
254			int inf, i;
255			ASN1_OBJECT *ret = NULL;
256
257			p = *pp;
258			inf = ASN1_get_object(&p, &len, &tag, &xclass, length);
259			if (inf & 0x80) {
260			i = ASN1_R_BAD_OBJECT_HEADER;
261			goto err;
262			}
263
264			if (tag != V_ASN1_OBJECT) {
265			i = ASN1_R_EXPECTING_AN_OBJECT;
266			goto err;
267			}
268			ret = c2i_ASN1_OBJECT(a, &p, len);
269			if (ret)
270			*pp = p;
271			return ret;
272
273			err:
274			ASN1error(i);
275			return (NULL);
276			}
277
278			ASN1_OBJECT *
279			c2i_ASN1_OBJECT(ASN1_OBJECT a, const unsigned char pp, long len)
280			{
281			ASN1_OBJECT *ret;
282			const unsigned char *p;
283			unsigned char *data;
284			int i, length;
285
286			/*
287			* Sanity check OID encoding:
288			* - need at least one content octet
289			* - MSB must be clear in the last octet
290			* - can't have leading 0x80 in subidentifiers, see: X.690 8.19.2
291			*/
292	✓✗✓✗ ✗✓	740164	if (len <= 0 \|\| len > INT_MAX \|\| pp == NULL \|\| (p = *pp) == NULL \|\|
293		185041	p[len - 1] & 0x80) {
294			ASN1error(ASN1_R_INVALID_OBJECT_ENCODING);
295			return (NULL);
296			}
297
298			/* Now 0 < len <= INT_MAX, so the cast is safe. */
299		185041	length = (int)len;
300	✓✓	1992886	for (i = 0; i < length; i++, p++) {
301	✗✓✗✗ ✗✗	811402	if (*p == 0x80 && (!i \|\| !(p[-1] & 0x80))) {
302			ASN1error(ASN1_R_INVALID_OBJECT_ENCODING);
303			return (NULL);
304			}
305			}
306
307			/* only the ASN1_OBJECTs from the 'table' will have values
308			* for ->sn or ->ln */
309	✓✗✓✓ ✓✗	553460	if ((a == NULL) \|\| ((*a) == NULL) \|\|
310		183378	!((*a)->flags & ASN1_OBJECT_FLAG_DYNAMIC)) {
311	✗✓	185041	if ((ret = ASN1_OBJECT_new()) == NULL)
312			return (NULL);
313			} else
314			ret = *a;
315
316		185041	p = *pp;
317
318			/* detach data from object */
319		185041	data = (unsigned char *)ret->data;
320		185041	freezero(data, ret->length);
321
322		185041	data = malloc(length);
323	✗✓	185041	if (data == NULL) {
324			ASN1error(ERR_R_MALLOC_FAILURE);
325			goto err;
326			}
327
328		185041	memcpy(data, p, length);
329
330			/* reattach data to object, after which it remains const */
331		185041	ret->data = data;
332		185041	ret->length = length;
333		185041	ret->sn = NULL;
334		185041	ret->ln = NULL;
335		185041	ret->flags \|= ASN1_OBJECT_FLAG_DYNAMIC_DATA;
336		185041	p += length;
337
338	✓✗	185041	if (a != NULL)
339		185041	*a = ret;
340		185041	*pp = p;
341		185041	return (ret);
342
343			err:
344			if (a == NULL \|\| ret != *a)
345			ASN1_OBJECT_free(ret);
346			return (NULL);
347		185041	}
348
349			ASN1_OBJECT *
350			ASN1_OBJECT_new(void)
351			{
352			ASN1_OBJECT *ret;
353
354		577638	ret = malloc(sizeof(ASN1_OBJECT));
355	✗✓	288819	if (ret == NULL) {
356			ASN1error(ERR_R_MALLOC_FAILURE);
357			return (NULL);
358			}
359		288819	ret->length = 0;
360		288819	ret->data = NULL;
361		288819	ret->nid = 0;
362		288819	ret->sn = NULL;
363		288819	ret->ln = NULL;
364		288819	ret->flags = ASN1_OBJECT_FLAG_DYNAMIC;
365		288819	return (ret);
366		288819	}
367
368			void
369			ASN1_OBJECT_free(ASN1_OBJECT *a)
370			{
371	✓✓	584598	if (a == NULL)
372			return;
373	✓✓	292279	if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_STRINGS) {
374		103778	free((void *)a->sn);
375		103778	free((void *)a->ln);
376		103778	a->sn = a->ln = NULL;
377		103778	}
378	✓✓	292279	if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_DATA) {
379		288519	freezero((void *)a->data, a->length);
380		288519	a->data = NULL;
381		288519	a->length = 0;
382		288519	}
383	✓✓	292279	if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC)
384		288519	free(a);
385		292299	}
386
387			ASN1_OBJECT *
388			ASN1_OBJECT_create(int nid, unsigned char *data, int len,
389			const char sn, const char ln)
390			{
391		214	ASN1_OBJECT o;
392
393		107	o.sn = sn;
394		107	o.ln = ln;
395		107	o.data = data;
396		107	o.nid = nid;
397		107	o.length = len;
398		107	o.flags = ASN1_OBJECT_FLAG_DYNAMIC \| ASN1_OBJECT_FLAG_DYNAMIC_STRINGS \|
399			ASN1_OBJECT_FLAG_DYNAMIC_DATA;
400		214	return (OBJ_dup(&o));
401		107	}