Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/crypto/../../libssl/src/crypto/asn1/a_object.c	Lines:	51	209	24.4 %
Date:	2016-12-06	Branches:	23	132	17.4 %


/* $OpenBSD: a_object.c,v 1.26 2016/03/17 03:51:49 beck 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 {
		ASN1err(ASN1_F_A2D_ASN1_OBJECT, ASN1_R_FIRST_NUM_TOO_LARGE);
		goto err;
	}

	if (num <= 0) {
		ASN1err(ASN1_F_A2D_ASN1_OBJECT, ASN1_R_MISSING_SECOND_NUMBER);
		goto err;
	}
	c = *(p++);
	num--;
	for (;;) {
		if (num <= 0)
			break;
		if ((c != '.') && (c != ' ')) {
			ASN1err(ASN1_F_A2D_ASN1_OBJECT,
			    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')) {
				ASN1err(ASN1_F_A2D_ASN1_OBJECT,
				    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)) {
				ASN1err(ASN1_F_A2D_ASN1_OBJECT,
				    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) {
				ASN1err(ASN1_F_A2D_ASN1_OBJECT,
				    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)) {
		explicit_bzero(tmp, tlen);
		free(tmp);
		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);
	explicit_bzero(tmp, tlen);
	free(tmp);
	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:
	ASN1err(ASN1_F_D2I_ASN1_OBJECT, i);
	return (NULL);
}

ASN1_OBJECT *
c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp, long len)
{
	ASN1_OBJECT *ret = NULL;
	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) {
		ASN1err(ASN1_F_C2I_ASN1_OBJECT, 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))) {
			ASN1err(ASN1_F_C2I_ASN1_OBJECT,
			    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;
	if (data != NULL)
		explicit_bzero(data, ret->length);
	free(data);
	data = malloc(length);
	if (data == NULL) {
		i = ERR_R_MALLOC_FAILURE;
		goto err;
	}
	ret->flags |= ASN1_OBJECT_FLAG_DYNAMIC_DATA;
	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; we know it is dynamic */
	p += length;

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

err:
	ASN1err(ASN1_F_C2I_ASN1_OBJECT, i);
	if ((ret != NULL) && ((a == NULL) || (*a != ret)))
		ASN1_OBJECT_free(ret);
	return (NULL);
}

ASN1_OBJECT *
ASN1_OBJECT_new(void)
{
	ASN1_OBJECT *ret;

	ret = malloc(sizeof(ASN1_OBJECT));
	if (ret == NULL) {
		ASN1err(ASN1_F_ASN1_OBJECT_NEW, 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) {
		if (a->data != NULL)
			explicit_bzero((void *)a->data, a->length);
		free((void *)a->data);
		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 1.26 2016/03/17 03:51:49 beck 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			char ftmp[24], *tmp = ftmp;
96			int tmpsize = sizeof ftmp;
97			const char *p;
98			unsigned long l;
99			BIGNUM *bl = NULL;
100
101			if (num == 0)
102			return (0);
103			else if (num == -1)
104			num = strlen(buf);
105
106			p = buf;
107			c = *(p++);
108			num--;
109			if ((c >= '0') && (c <= '2')) {
110			first= c-'0';
111			} else {
112			ASN1err(ASN1_F_A2D_ASN1_OBJECT, ASN1_R_FIRST_NUM_TOO_LARGE);
113			goto err;
114			}
115
116			if (num <= 0) {
117			ASN1err(ASN1_F_A2D_ASN1_OBJECT, ASN1_R_MISSING_SECOND_NUMBER);
118			goto err;
119			}
120			c = *(p++);
121			num--;
122			for (;;) {
123			if (num <= 0)
124			break;
125			if ((c != '.') && (c != ' ')) {
126			ASN1err(ASN1_F_A2D_ASN1_OBJECT,
127			ASN1_R_INVALID_SEPARATOR);
128			goto err;
129			}
130			l = 0;
131			use_bn = 0;
132			for (;;) {
133			if (num <= 0)
134			break;
135			num--;
136			c = *(p++);
137			if ((c == ' ') \|\| (c == '.'))
138			break;
139			if ((c < '0') \|\| (c > '9')) {
140			ASN1err(ASN1_F_A2D_ASN1_OBJECT,
141			ASN1_R_INVALID_DIGIT);
142			goto err;
143			}
144			if (!use_bn && l >= ((ULONG_MAX - 80) / 10L)) {
145			use_bn = 1;
146			if (!bl)
147			bl = BN_new();
148			if (!bl \|\| !BN_set_word(bl, l))
149			goto err;
150			}
151			if (use_bn) {
152			if (!BN_mul_word(bl, 10L) \|\|
153			!BN_add_word(bl, c-'0'))
154			goto err;
155			} else
156			l = l * 10L + (long)(c - '0');
157			}
158			if (len == 0) {
159			if ((first < 2) && (l >= 40)) {
160			ASN1err(ASN1_F_A2D_ASN1_OBJECT,
161			ASN1_R_SECOND_NUMBER_TOO_LARGE);
162			goto err;
163			}
164			if (use_bn) {
165			if (!BN_add_word(bl, first * 40))
166			goto err;
167			} else
168			l += (long)first * 40;
169			}
170			i = 0;
171			if (use_bn) {
172			int blsize;
173			blsize = BN_num_bits(bl);
174			blsize = (blsize + 6) / 7;
175			if (blsize > tmpsize) {
176			if (tmp != ftmp)
177			free(tmp);
178			tmpsize = blsize + 32;
179			tmp = malloc(tmpsize);
180			if (!tmp)
181			goto err;
182			}
183			while (blsize--)
184			tmp[i++] = (unsigned char)BN_div_word(bl, 0x80L);
185			} else {
186
187			for (;;) {
188			tmp[i++] = (unsigned char)l & 0x7f;
189			l >>= 7L;
190			if (l == 0L)
191			break;
192			}
193
194			}
195			if (out != NULL) {
196			if (len + i > olen) {
197			ASN1err(ASN1_F_A2D_ASN1_OBJECT,
198			ASN1_R_BUFFER_TOO_SMALL);
199			goto err;
200			}
201			while (--i > 0)
202			out[len++] = tmp[i]\|0x80;
203			out[len++] = tmp[0];
204			} else
205			len += i;
206			}
207			if (tmp != ftmp)
208			free(tmp);
209			BN_free(bl);
210			return (len);
211
212			err:
213			if (tmp != ftmp)
214			free(tmp);
215			BN_free(bl);
216			return (0);
217			}
218
219			int
220			i2t_ASN1_OBJECT(char buf, int buf_len, ASN1_OBJECT a)
221		2	{
222		2	return OBJ_obj2txt(buf, buf_len, a, 0);
223			}
224
225			int
226			i2a_ASN1_OBJECT(BIO bp, ASN1_OBJECT a)
227			{
228			char *tmp = NULL;
229			size_t tlen = 256;
230			int i = -1;
231
232			if ((a == NULL) \|\| (a->data == NULL))
233			return(BIO_write(bp, "NULL", 4));
234			if ((tmp = malloc(tlen)) == NULL)
235			return -1;
236			i = i2t_ASN1_OBJECT(tmp, tlen, a);
237			if (i > (int)(tlen - 1)) {
238			explicit_bzero(tmp, tlen);
239			free(tmp);
240			if ((tmp = malloc(i + 1)) == NULL)
241			return -1;
242			tlen = i + 1;
243			i = i2t_ASN1_OBJECT(tmp, tlen, a);
244			}
245			if (i <= 0)
246			i = BIO_write(bp, "<INVALID>", 9);
247			else
248			i = BIO_write(bp, tmp, i);
249			explicit_bzero(tmp, tlen);
250			free(tmp);
251			return (i);
252			}
253
254			ASN1_OBJECT *
255			d2i_ASN1_OBJECT(ASN1_OBJECT a, const unsigned char pp, long length)
256			{
257			const unsigned char *p;
258			long len;
259			int tag, xclass;
260			int inf, i;
261			ASN1_OBJECT *ret = NULL;
262
263			p = *pp;
264			inf = ASN1_get_object(&p, &len, &tag, &xclass, length);
265			if (inf & 0x80) {
266			i = ASN1_R_BAD_OBJECT_HEADER;
267			goto err;
268			}
269
270			if (tag != V_ASN1_OBJECT) {
271			i = ASN1_R_EXPECTING_AN_OBJECT;
272			goto err;
273			}
274			ret = c2i_ASN1_OBJECT(a, &p, len);
275			if (ret)
276			*pp = p;
277			return ret;
278
279			err:
280			ASN1err(ASN1_F_D2I_ASN1_OBJECT, i);
281			return (NULL);
282			}
283
284			ASN1_OBJECT *
285			c2i_ASN1_OBJECT(ASN1_OBJECT a, const unsigned char pp, long len)
286		2468	{
287		2468	ASN1_OBJECT *ret = NULL;
288			const unsigned char *p;
289			unsigned char *data;
290			int i, length;
291
292			/*
293			* Sanity check OID encoding:
294			* - need at least one content octet
295			* - MSB must be clear in the last octet
296			* - can't have leading 0x80 in subidentifiers, see: X.690 8.19.2
297			*/
298	✓✗✓✗ ✗✓	2468	if (len <= 0 \|\| len > INT_MAX \|\| pp == NULL \|\| (p = *pp) == NULL \|\|
299			p[len - 1] & 0x80) {
300			ASN1err(ASN1_F_C2I_ASN1_OBJECT, ASN1_R_INVALID_OBJECT_ENCODING);
301			return (NULL);
302			}
303
304			/* Now 0 < len <= INT_MAX, so the cast is safe. */
305		2468	length = (int)len;
306	✓✓	13255	for (i = 0; i < length; i++, p++) {
307	✗✓✗✗ ✗✗	10787	if (*p == 0x80 && (!i \|\| !(p[-1] & 0x80))) {
308			ASN1err(ASN1_F_C2I_ASN1_OBJECT,
309			ASN1_R_INVALID_OBJECT_ENCODING);
310			return NULL;
311			}
312			}
313
314			/* only the ASN1_OBJECTs from the 'table' will have values
315			* for ->sn or ->ln */
316	✓✗✓✓ ✓✗	2468	if ((a == NULL) \|\| ((*a) == NULL) \|\|
317			!((*a)->flags & ASN1_OBJECT_FLAG_DYNAMIC)) {
318	✗✓	2468	if ((ret = ASN1_OBJECT_new()) == NULL)
319			return (NULL);
320			} else
321			ret = (*a);
322
323		2468	p = *pp;
324			/* detach data from object */
325		2468	data = (unsigned char *)ret->data;
326	✗✓	2468	if (data != NULL)
327			explicit_bzero(data, ret->length);
328		2468	free(data);
329		2468	data = malloc(length);
330	✗✓	2468	if (data == NULL) {
331			i = ERR_R_MALLOC_FAILURE;
332			goto err;
333			}
334		2468	ret->flags \|= ASN1_OBJECT_FLAG_DYNAMIC_DATA;
335		2468	memcpy(data, p, length);
336			/* reattach data to object, after which it remains const */
337		2468	ret->data = data;
338		2468	ret->length = length;
339		2468	ret->sn = NULL;
340		2468	ret->ln = NULL;
341			/* ret->flags=ASN1_OBJECT_FLAG_DYNAMIC; we know it is dynamic */
342		2468	p += length;
343
344	✓✗	2468	if (a != NULL)
345		2468	(*a) = ret;
346		2468	*pp = p;
347		2468	return (ret);
348
349			err:
350			ASN1err(ASN1_F_C2I_ASN1_OBJECT, i);
351			if ((ret != NULL) && ((a == NULL) \|\| (*a != ret)))
352			ASN1_OBJECT_free(ret);
353			return (NULL);
354			}
355
356			ASN1_OBJECT *
357			ASN1_OBJECT_new(void)
358		3820	{
359			ASN1_OBJECT *ret;
360
361		3820	ret = malloc(sizeof(ASN1_OBJECT));
362	✗✓	3820	if (ret == NULL) {
363			ASN1err(ASN1_F_ASN1_OBJECT_NEW, ERR_R_MALLOC_FAILURE);
364			return (NULL);
365			}
366		3820	ret->length = 0;
367		3820	ret->data = NULL;
368		3820	ret->nid = 0;
369		3820	ret->sn = NULL;
370		3820	ret->ln = NULL;
371		3820	ret->flags = ASN1_OBJECT_FLAG_DYNAMIC;
372		3820	return (ret);
373			}
374
375			void
376			ASN1_OBJECT_free(ASN1_OBJECT *a)
377		1478	{
378	✗✓	1478	if (a == NULL)
379			return;
380	✓✓	1478	if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_STRINGS) {
381		1352	free((void *)a->sn);
382		1352	free((void *)a->ln);
383		1352	a->sn = a->ln = NULL;
384			}
385	✓✓	1478	if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_DATA) {
386	✓✗	1377	if (a->data != NULL)
387		1377	explicit_bzero((void *)a->data, a->length);
388		1377	free((void *)a->data);
389		1377	a->data = NULL;
390		1377	a->length = 0;
391			}
392	✓✓	1478	if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC)
393		1377	free(a);
394			}
395
396			ASN1_OBJECT *
397			ASN1_OBJECT_create(int nid, unsigned char *data, int len,
398			const char sn, const char ln)
399			{
400			ASN1_OBJECT o;
401
402			o.sn = sn;
403			o.ln = ln;
404			o.data = data;
405			o.nid = nid;
406			o.length = len;
407			o.flags = ASN1_OBJECT_FLAG_DYNAMIC \| ASN1_OBJECT_FLAG_DYNAMIC_STRINGS \|
408			ASN1_OBJECT_FLAG_DYNAMIC_DATA;
409			return (OBJ_dup(&o));
410			}