GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcrypto/asn1/x_x509.c Lines: 44 58 75.9 %
Date: 2017-11-07 Branches: 8 14 57.1 %

Line Branch Exec Source
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/* $OpenBSD: x_x509.c,v 1.24 2015/03/19 14:00:22 tedu Exp $ */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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 * All rights reserved.
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 *
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 * This package is an SSL implementation written
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 * by Eric Young (eay@cryptsoft.com).
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 * The implementation was written so as to conform with Netscapes SSL.
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 *
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 * This library is free for commercial and non-commercial use as long as
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 * the following conditions are aheared to.  The following conditions
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 * apply to all code found in this distribution, be it the RC4, RSA,
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 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
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 * included with this distribution is covered by the same copyright terms
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 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
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 *
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 * Copyright remains Eric Young's, and as such any Copyright notices in
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 * the code are not to be removed.
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 * If this package is used in a product, Eric Young should be given attribution
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 * as the author of the parts of the library used.
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 * This can be in the form of a textual message at program startup or
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 * in documentation (online or textual) provided with the package.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. All advertising materials mentioning features or use of this software
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 *    must display the following acknowledgement:
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 *    "This product includes cryptographic software written by
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 *     Eric Young (eay@cryptsoft.com)"
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 *    The word 'cryptographic' can be left out if the rouines from the library
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 *    being used are not cryptographic related :-).
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 * 4. If you include any Windows specific code (or a derivative thereof) from
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 *    the apps directory (application code) you must include an acknowledgement:
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 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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 *
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 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 *
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 * The licence and distribution terms for any publically available version or
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 * derivative of this code cannot be changed.  i.e. this code cannot simply be
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 * copied and put under another distribution licence
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 * [including the GNU Public Licence.]
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 */
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#include <stdio.h>
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61
#include <openssl/opensslconf.h>
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#include <openssl/asn1t.h>
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#include <openssl/evp.h>
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#include <openssl/x509.h>
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#include <openssl/x509v3.h>
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static const ASN1_AUX X509_CINF_aux = {
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	.flags = ASN1_AFLG_ENCODING,
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	.enc_offset = offsetof(X509_CINF, enc),
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};
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static const ASN1_TEMPLATE X509_CINF_seq_tt[] = {
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	{
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		.flags = ASN1_TFLG_EXPLICIT | ASN1_TFLG_OPTIONAL,
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		.offset = offsetof(X509_CINF, version),
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		.field_name = "version",
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		.item = &ASN1_INTEGER_it,
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	},
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	{
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		.offset = offsetof(X509_CINF, serialNumber),
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		.field_name = "serialNumber",
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		.item = &ASN1_INTEGER_it,
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	},
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	{
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		.offset = offsetof(X509_CINF, signature),
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		.field_name = "signature",
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		.item = &X509_ALGOR_it,
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	},
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	{
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		.offset = offsetof(X509_CINF, issuer),
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		.field_name = "issuer",
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		.item = &X509_NAME_it,
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	},
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	{
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		.offset = offsetof(X509_CINF, validity),
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		.field_name = "validity",
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		.item = &X509_VAL_it,
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	},
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	{
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		.offset = offsetof(X509_CINF, subject),
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		.field_name = "subject",
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		.item = &X509_NAME_it,
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	},
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	{
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		.offset = offsetof(X509_CINF, key),
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		.field_name = "key",
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		.item = &X509_PUBKEY_it,
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	},
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	{
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		.flags = ASN1_TFLG_IMPLICIT | ASN1_TFLG_OPTIONAL,
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		.tag = 1,
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		.offset = offsetof(X509_CINF, issuerUID),
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		.field_name = "issuerUID",
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		.item = &ASN1_BIT_STRING_it,
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	},
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	{
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		.flags = ASN1_TFLG_IMPLICIT | ASN1_TFLG_OPTIONAL,
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		.tag = 2,
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		.offset = offsetof(X509_CINF, subjectUID),
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		.field_name = "subjectUID",
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		.item = &ASN1_BIT_STRING_it,
122
	},
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	{
124
		.flags = ASN1_TFLG_EXPLICIT | ASN1_TFLG_SEQUENCE_OF |
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		    ASN1_TFLG_OPTIONAL,
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		.tag = 3,
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		.offset = offsetof(X509_CINF, extensions),
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		.field_name = "extensions",
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		.item = &X509_EXTENSION_it,
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	},
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};
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133
const ASN1_ITEM X509_CINF_it = {
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	.itype = ASN1_ITYPE_SEQUENCE,
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	.utype = V_ASN1_SEQUENCE,
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	.templates = X509_CINF_seq_tt,
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	.tcount = sizeof(X509_CINF_seq_tt) / sizeof(ASN1_TEMPLATE),
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	.funcs = &X509_CINF_aux,
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	.size = sizeof(X509_CINF),
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	.sname = "X509_CINF",
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};
142
143
144
X509_CINF *
145
d2i_X509_CINF(X509_CINF **a, const unsigned char **in, long len)
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{
147
	return (X509_CINF *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
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	    &X509_CINF_it);
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}
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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
}
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157
X509_CINF *
158
X509_CINF_new(void)
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{
160
	return (X509_CINF *)ASN1_item_new(&X509_CINF_it);
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}
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163
void
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X509_CINF_free(X509_CINF *a)
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{
166
	ASN1_item_free((ASN1_VALUE *)a, &X509_CINF_it);
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}
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/* X509 top level structure needs a bit of customisation */
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170
extern void policy_cache_free(X509_POLICY_CACHE *cache);
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172
static int
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x509_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg)
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{
175
252366
	X509 *ret = (X509 *)*pval;
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177

149440
	switch (operation) {
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179
	case ASN1_OP_NEW_POST:
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15564
		ret->valid = 0;
181
15564
		ret->name = NULL;
182
15564
		ret->ex_flags = 0;
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15564
		ret->ex_pathlen = -1;
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15564
		ret->skid = NULL;
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15564
		ret->akid = NULL;
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15564
		ret->aux = NULL;
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15564
		ret->crldp = NULL;
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15564
		CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data);
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15564
		break;
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191
	case ASN1_OP_D2I_POST:
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15414
		free(ret->name);
193
15414
		ret->name = X509_NAME_oneline(ret->cert_info->subject, NULL, 0);
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15414
		break;
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196
	case ASN1_OP_FREE_POST:
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15536
		CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data);
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15536
		X509_CERT_AUX_free(ret->aux);
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15536
		ASN1_OCTET_STRING_free(ret->skid);
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15536
		AUTHORITY_KEYID_free(ret->akid);
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15536
		CRL_DIST_POINTS_free(ret->crldp);
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15536
		policy_cache_free(ret->policy_cache);
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15536
		GENERAL_NAMES_free(ret->altname);
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15536
		NAME_CONSTRAINTS_free(ret->nc);
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15536
		free(ret->name);
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15536
		ret->name = NULL;
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15536
		break;
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	}
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102926
	return 1;
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}
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static const ASN1_AUX X509_aux = {
214
	.app_data = NULL,
215
	.flags = ASN1_AFLG_REFCOUNT,
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	.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
	},
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};
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
{
252
30752
	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
2200
	return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_it);
260
}
261
262
X509 *
263
X509_new(void)
264
{
265
300
	return (X509 *)ASN1_item_new(&X509_it);
266
}
267
268
void
269
X509_free(X509 *a)
270
{
271
112720
	ASN1_item_free((ASN1_VALUE *)a, &X509_it);
272
56360
}
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
{
311
	const unsigned char *q;
312
	X509 *ret;
313
314
	/* Save start position */
315
416
	q = *pp;
316
208
	ret = d2i_X509(NULL, pp, length);
317
	/* If certificate unreadable then forget it */
318
208
	if (!ret)
319
		return NULL;
320
	/* update length */
321
208
	length -= *pp - q;
322
208
	if (length > 0) {
323
		if (!d2i_X509_CERT_AUX(&ret->aux, pp, length))
324
			goto err;
325
	}
326
208
	if (a != NULL) {
327
		X509_free(*a);
328
		*a = ret;
329
	}
330
208
	return ret;
331
332
err:
333
	X509_free(ret);
334
	return NULL;
335
208
}
336
337
int
338
i2d_X509_AUX(X509 *a, unsigned char **pp)
339
{
340
	int length;
341
342
8
	length = i2d_X509(a, pp);
343
4
	if (a)
344
4
		length += i2d_X509_CERT_AUX(a->aux, pp);
345
4
	return length;
346
}