Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/crypto/../../libssl/src/crypto/asn1/x_x509.c	Lines:	30	62	48.4 %
Date:	2016-12-06	Branches:	6	14	42.9 %


/* $OpenBSD: x_x509.c,v 1.24 2015/03/19 14:00:22 tedu 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 <stdio.h>

#include <openssl/opensslconf.h>

#include <openssl/asn1t.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>

static const ASN1_AUX X509_CINF_aux = {
	.flags = ASN1_AFLG_ENCODING,
	.enc_offset = offsetof(X509_CINF, enc),
};
static const ASN1_TEMPLATE X509_CINF_seq_tt[] = {
	{
		.flags = ASN1_TFLG_EXPLICIT | ASN1_TFLG_OPTIONAL,
		.offset = offsetof(X509_CINF, version),
		.field_name = "version",
		.item = &ASN1_INTEGER_it,
	},
	{
		.offset = offsetof(X509_CINF, serialNumber),
		.field_name = "serialNumber",
		.item = &ASN1_INTEGER_it,
	},
	{
		.offset = offsetof(X509_CINF, signature),
		.field_name = "signature",
		.item = &X509_ALGOR_it,
	},
	{
		.offset = offsetof(X509_CINF, issuer),
		.field_name = "issuer",
		.item = &X509_NAME_it,
	},
	{
		.offset = offsetof(X509_CINF, validity),
		.field_name = "validity",
		.item = &X509_VAL_it,
	},
	{
		.offset = offsetof(X509_CINF, subject),
		.field_name = "subject",
		.item = &X509_NAME_it,
	},
	{
		.offset = offsetof(X509_CINF, key),
		.field_name = "key",
		.item = &X509_PUBKEY_it,
	},
	{
		.flags = ASN1_TFLG_IMPLICIT | ASN1_TFLG_OPTIONAL,
		.tag = 1,
		.offset = offsetof(X509_CINF, issuerUID),
		.field_name = "issuerUID",
		.item = &ASN1_BIT_STRING_it,
	},
	{
		.flags = ASN1_TFLG_IMPLICIT | ASN1_TFLG_OPTIONAL,
		.tag = 2,
		.offset = offsetof(X509_CINF, subjectUID),
		.field_name = "subjectUID",
		.item = &ASN1_BIT_STRING_it,
	},
	{
		.flags = ASN1_TFLG_EXPLICIT | ASN1_TFLG_SEQUENCE_OF |
		    ASN1_TFLG_OPTIONAL,
		.tag = 3,
		.offset = offsetof(X509_CINF, extensions),
		.field_name = "extensions",
		.item = &X509_EXTENSION_it,
	},
};

const ASN1_ITEM X509_CINF_it = {
	.itype = ASN1_ITYPE_SEQUENCE,
	.utype = V_ASN1_SEQUENCE,
	.templates = X509_CINF_seq_tt,
	.tcount = sizeof(X509_CINF_seq_tt) / sizeof(ASN1_TEMPLATE),
	.funcs = &X509_CINF_aux,
	.size = sizeof(X509_CINF),
	.sname = "X509_CINF",
};


X509_CINF *
d2i_X509_CINF(X509_CINF **a, const unsigned char **in, long len)
{
	return (X509_CINF *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
	    &X509_CINF_it);
}

int
i2d_X509_CINF(X509_CINF *a, unsigned char **out)
{
	return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_CINF_it);
}

X509_CINF *
X509_CINF_new(void)
{
	return (X509_CINF *)ASN1_item_new(&X509_CINF_it);
}

void
X509_CINF_free(X509_CINF *a)
{
	ASN1_item_free((ASN1_VALUE *)a, &X509_CINF_it);
}
/* X509 top level structure needs a bit of customisation */

extern void policy_cache_free(X509_POLICY_CACHE *cache);

static int
x509_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg)
{
	X509 *ret = (X509 *)*pval;

	switch (operation) {

	case ASN1_OP_NEW_POST:
		ret->valid = 0;
		ret->name = NULL;
		ret->ex_flags = 0;
		ret->ex_pathlen = -1;
		ret->skid = NULL;
		ret->akid = NULL;
		ret->aux = NULL;
		ret->crldp = NULL;
		CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data);
		break;

	case ASN1_OP_D2I_POST:
		free(ret->name);
		ret->name = X509_NAME_oneline(ret->cert_info->subject, NULL, 0);
		break;

	case ASN1_OP_FREE_POST:
		CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data);
		X509_CERT_AUX_free(ret->aux);
		ASN1_OCTET_STRING_free(ret->skid);
		AUTHORITY_KEYID_free(ret->akid);
		CRL_DIST_POINTS_free(ret->crldp);
		policy_cache_free(ret->policy_cache);
		GENERAL_NAMES_free(ret->altname);
		NAME_CONSTRAINTS_free(ret->nc);
		free(ret->name);
		ret->name = NULL;
		break;
	}

	return 1;
}

static const ASN1_AUX X509_aux = {
	.app_data = NULL,
	.flags = ASN1_AFLG_REFCOUNT,
	.ref_offset = offsetof(X509, references),
	.ref_lock = CRYPTO_LOCK_X509,
	.asn1_cb = x509_cb,
};
static const ASN1_TEMPLATE X509_seq_tt[] = {
	{
		.offset = offsetof(X509, cert_info),
		.field_name = "cert_info",
		.item = &X509_CINF_it,
	},
	{
		.offset = offsetof(X509, sig_alg),
		.field_name = "sig_alg",
		.item = &X509_ALGOR_it,
	},
	{
		.offset = offsetof(X509, signature),
		.field_name = "signature",
		.item = &ASN1_BIT_STRING_it,
	},
};

const ASN1_ITEM X509_it = {
	.itype = ASN1_ITYPE_SEQUENCE,
	.utype = V_ASN1_SEQUENCE,
	.templates = X509_seq_tt,
	.tcount = sizeof(X509_seq_tt) / sizeof(ASN1_TEMPLATE),
	.funcs = &X509_aux,
	.size = sizeof(X509),
	.sname = "X509",
};


X509 *
d2i_X509(X509 **a, const unsigned char **in, long len)
{
	return (X509 *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
	    &X509_it);
}

int
i2d_X509(X509 *a, unsigned char **out)
{
	return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_it);
}

X509 *
X509_new(void)
{
	return (X509 *)ASN1_item_new(&X509_it);
}

void
X509_free(X509 *a)
{
	ASN1_item_free((ASN1_VALUE *)a, &X509_it);
}

X509 *
X509_dup(X509 *x)
{
	return ASN1_item_dup(&X509_it, x);
}

int
X509_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
    CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
{
	return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_X509, argl, argp,
	    new_func, dup_func, free_func);
}

int
X509_set_ex_data(X509 *r, int idx, void *arg)
{
	return (CRYPTO_set_ex_data(&r->ex_data, idx, arg));
}

void *
X509_get_ex_data(X509 *r, int idx)
{
	return (CRYPTO_get_ex_data(&r->ex_data, idx));
}

/* X509_AUX ASN1 routines. X509_AUX is the name given to
 * a certificate with extra info tagged on the end. Since these
 * functions set how a certificate is trusted they should only
 * be used when the certificate comes from a reliable source
 * such as local storage.
 *
 */

X509 *
d2i_X509_AUX(X509 **a, const unsigned char **pp, long length)
{
	const unsigned char *q;
	X509 *ret;

	/* Save start position */
	q = *pp;
	ret = d2i_X509(NULL, pp, length);
	/* If certificate unreadable then forget it */
	if (!ret)
		return NULL;
	/* update length */
	length -= *pp - q;
	if (length > 0) {
		if (!d2i_X509_CERT_AUX(&ret->aux, pp, length))
			goto err;
	}
	if (a != NULL) {
		X509_free(*a);
		*a = ret;
	}
	return ret;

err:
	X509_free(ret);
	return NULL;
}

int
i2d_X509_AUX(X509 *a, unsigned char **pp)
{
	int length;

	length = i2d_X509(a, pp);
	if (a)
		length += i2d_X509_CERT_AUX(a->aux, pp);
	return length;
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: x_x509.c,v 1.24 2015/03/19 14:00:22 tedu 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 <stdio.h>
60
61			#include <openssl/opensslconf.h>
62
63			#include <openssl/asn1t.h>
64			#include <openssl/evp.h>
65			#include <openssl/x509.h>
66			#include <openssl/x509v3.h>
67
68			static const ASN1_AUX X509_CINF_aux = {
69			.flags = ASN1_AFLG_ENCODING,
70			.enc_offset = offsetof(X509_CINF, enc),
71			};
72			static const ASN1_TEMPLATE X509_CINF_seq_tt[] = {
73			{
74			.flags = ASN1_TFLG_EXPLICIT \| ASN1_TFLG_OPTIONAL,
75			.offset = offsetof(X509_CINF, version),
76			.field_name = "version",
77			.item = &ASN1_INTEGER_it,
78			},
79			{
80			.offset = offsetof(X509_CINF, serialNumber),
81			.field_name = "serialNumber",
82			.item = &ASN1_INTEGER_it,
83			},
84			{
85			.offset = offsetof(X509_CINF, signature),
86			.field_name = "signature",
87			.item = &X509_ALGOR_it,
88			},
89			{
90			.offset = offsetof(X509_CINF, issuer),
91			.field_name = "issuer",
92			.item = &X509_NAME_it,
93			},
94			{
95			.offset = offsetof(X509_CINF, validity),
96			.field_name = "validity",
97			.item = &X509_VAL_it,
98			},
99			{
100			.offset = offsetof(X509_CINF, subject),
101			.field_name = "subject",
102			.item = &X509_NAME_it,
103			},
104			{
105			.offset = offsetof(X509_CINF, key),
106			.field_name = "key",
107			.item = &X509_PUBKEY_it,
108			},
109			{
110			.flags = ASN1_TFLG_IMPLICIT \| ASN1_TFLG_OPTIONAL,
111			.tag = 1,
112			.offset = offsetof(X509_CINF, issuerUID),
113			.field_name = "issuerUID",
114			.item = &ASN1_BIT_STRING_it,
115			},
116			{
117			.flags = ASN1_TFLG_IMPLICIT \| ASN1_TFLG_OPTIONAL,
118			.tag = 2,
119			.offset = offsetof(X509_CINF, subjectUID),
120			.field_name = "subjectUID",
121			.item = &ASN1_BIT_STRING_it,
122			},
123			{
124			.flags = ASN1_TFLG_EXPLICIT \| ASN1_TFLG_SEQUENCE_OF \|
125			ASN1_TFLG_OPTIONAL,
126			.tag = 3,
127			.offset = offsetof(X509_CINF, extensions),
128			.field_name = "extensions",
129			.item = &X509_EXTENSION_it,
130			},
131			};
132
133			const ASN1_ITEM X509_CINF_it = {
134			.itype = ASN1_ITYPE_SEQUENCE,
135			.utype = V_ASN1_SEQUENCE,
136			.templates = X509_CINF_seq_tt,
137			.tcount = sizeof(X509_CINF_seq_tt) / sizeof(ASN1_TEMPLATE),
138			.funcs = &X509_CINF_aux,
139			.size = sizeof(X509_CINF),
140			.sname = "X509_CINF",
141			};
142
143
144			X509_CINF *
145			d2i_X509_CINF(X509_CINF a, const unsigned char in, long len)
146			{
147			return (X509_CINF )ASN1_item_d2i((ASN1_VALUE *)a, in, len,
148			&X509_CINF_it);
149			}
150
151			int
152			i2d_X509_CINF(X509_CINF a, unsigned char *out)
153			{
154			return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_CINF_it);
155			}
156
157			X509_CINF *
158			X509_CINF_new(void)
159			{
160			return (X509_CINF *)ASN1_item_new(&X509_CINF_it);
161			}
162
163			void
164			X509_CINF_free(X509_CINF *a)
165			{
166			ASN1_item_free((ASN1_VALUE *)a, &X509_CINF_it);
167			}
168			/* X509 top level structure needs a bit of customisation */
169
170			extern void policy_cache_free(X509_POLICY_CACHE *cache);
171
172			static int
173			x509_cb(int operation, ASN1_VALUE *pval, const ASN1_ITEM it, void *exarg)
174		689	{
175		689	X509 ret = (X509 )*pval;
176
177	✓✓✗✓	689	switch (operation) {
178
179			case ASN1_OP_NEW_POST:
180		161	ret->valid = 0;
181		161	ret->name = NULL;
182		161	ret->ex_flags = 0;
183		161	ret->ex_pathlen = -1;
184		161	ret->skid = NULL;
185		161	ret->akid = NULL;
186		161	ret->aux = NULL;
187		161	ret->crldp = NULL;
188		161	CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data);
189		161	break;
190
191			case ASN1_OP_D2I_POST:
192		161	free(ret->name);
193		161	ret->name = X509_NAME_oneline(ret->cert_info->subject, NULL, 0);
194		161	break;
195
196			case ASN1_OP_FREE_POST:
197			CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data);
198			X509_CERT_AUX_free(ret->aux);
199			ASN1_OCTET_STRING_free(ret->skid);
200			AUTHORITY_KEYID_free(ret->akid);
201			CRL_DIST_POINTS_free(ret->crldp);
202			policy_cache_free(ret->policy_cache);
203			GENERAL_NAMES_free(ret->altname);
204			NAME_CONSTRAINTS_free(ret->nc);
205			free(ret->name);
206			ret->name = NULL;
207			break;
208			}
209
210		689	return 1;
211			}
212
213			static const ASN1_AUX X509_aux = {
214			.app_data = NULL,
215			.flags = ASN1_AFLG_REFCOUNT,
216			.ref_offset = offsetof(X509, references),
217			.ref_lock = CRYPTO_LOCK_X509,
218			.asn1_cb = x509_cb,
219			};
220			static const ASN1_TEMPLATE X509_seq_tt[] = {
221			{
222			.offset = offsetof(X509, cert_info),
223			.field_name = "cert_info",
224			.item = &X509_CINF_it,
225			},
226			{
227			.offset = offsetof(X509, sig_alg),
228			.field_name = "sig_alg",
229			.item = &X509_ALGOR_it,
230			},
231			{
232			.offset = offsetof(X509, signature),
233			.field_name = "signature",
234			.item = &ASN1_BIT_STRING_it,
235			},
236			};
237
238			const ASN1_ITEM X509_it = {
239			.itype = ASN1_ITYPE_SEQUENCE,
240			.utype = V_ASN1_SEQUENCE,
241			.templates = X509_seq_tt,
242			.tcount = sizeof(X509_seq_tt) / sizeof(ASN1_TEMPLATE),
243			.funcs = &X509_aux,
244			.size = sizeof(X509),
245			.sname = "X509",
246			};
247
248
249			X509 *
250			d2i_X509(X509 a, const unsigned char in, long len)
251		157	{
252		157	return (X509 )ASN1_item_d2i((ASN1_VALUE *)a, in, len,
253			&X509_it);
254			}
255
256			int
257			i2d_X509(X509 a, unsigned char *out)
258			{
259			return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_it);
260			}
261
262			X509 *
263			X509_new(void)
264			{
265			return (X509 *)ASN1_item_new(&X509_it);
266			}
267
268			void
269			X509_free(X509 *a)
270		183	{
271		183	ASN1_item_free((ASN1_VALUE *)a, &X509_it);
272		183	}
273
274			X509 *
275			X509_dup(X509 *x)
276			{
277			return ASN1_item_dup(&X509_it, x);
278			}
279
280			int
281			X509_get_ex_new_index(long argl, void argp, CRYPTO_EX_new new_func,
282			CRYPTO_EX_dup dup_func, CRYPTO_EX_free free_func)
283			{
284			return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_X509, argl, argp,
285			new_func, dup_func, free_func);
286			}
287
288			int
289			X509_set_ex_data(X509 r, int idx, void arg)
290			{
291			return (CRYPTO_set_ex_data(&r->ex_data, idx, arg));
292			}
293
294			void *
295			X509_get_ex_data(X509 *r, int idx)
296			{
297			return (CRYPTO_get_ex_data(&r->ex_data, idx));
298			}
299
300			/* X509_AUX ASN1 routines. X509_AUX is the name given to
301			* a certificate with extra info tagged on the end. Since these
302			* functions set how a certificate is trusted they should only
303			* be used when the certificate comes from a reliable source
304			* such as local storage.
305			*
306			*/
307
308			X509 *
309			d2i_X509_AUX(X509 a, const unsigned char pp, long length)
310		1	{
311			const unsigned char *q;
312			X509 *ret;
313
314			/* Save start position */
315		1	q = *pp;
316		1	ret = d2i_X509(NULL, pp, length);
317			/* If certificate unreadable then forget it */
318	✗✓	1	if (!ret)
319			return NULL;
320			/* update length */
321		1	length -= *pp - q;
322	✗✓	1	if (length > 0) {
323			if (!d2i_X509_CERT_AUX(&ret->aux, pp, length))
324			goto err;
325			}
326	✗✓	1	if (a != NULL) {
327			X509_free(*a);
328			*a = ret;
329			}
330		1	return ret;
331
332			err:
333			X509_free(ret);
334			return NULL;
335			}
336
337			int
338			i2d_X509_AUX(X509 a, unsigned char *pp)
339			{
340			int length;
341
342			length = i2d_X509(a, pp);
343			if (a)
344			length += i2d_X509_CERT_AUX(a->aux, pp);
345			return length;
346			}