crypto/asn1/x_x509.c - third_party/openssl - Git at Google

 /* crypto/asn1/x_x509.c */
 /* 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 "cryptlib.h"
 #include <openssl/evp.h>
 #include <openssl/asn1_mac.h>
 #include <openssl/x509.h>

 static int x509_meth_num = 0;
 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *x509_meth = NULL;

 static ASN1_METHOD meth={
 	(int (*)())  i2d_X509,
 	(char *(*)())d2i_X509,
 	(char *(*)())X509_new,
 	(void (*)()) X509_free};

 ASN1_METHOD *X509_asn1_meth(void)
 	{
 	return(&meth);
 	}

 int i2d_X509(X509 *a, unsigned char **pp)
 	{
 	M_ASN1_I2D_vars(a);

 	M_ASN1_I2D_len(a->cert_info,	i2d_X509_CINF);
 	M_ASN1_I2D_len(a->sig_alg,	i2d_X509_ALGOR);
 	M_ASN1_I2D_len(a->signature,	i2d_ASN1_BIT_STRING);

 	M_ASN1_I2D_seq_total();

 	M_ASN1_I2D_put(a->cert_info,	i2d_X509_CINF);
 	M_ASN1_I2D_put(a->sig_alg,	i2d_X509_ALGOR);
 	M_ASN1_I2D_put(a->signature,	i2d_ASN1_BIT_STRING);

 	M_ASN1_I2D_finish();
 	}

 X509 *d2i_X509(X509 **a, unsigned char **pp, long length)
 	{
 	M_ASN1_D2I_vars(a,X509 *,X509_new);

 	M_ASN1_D2I_Init();
 	M_ASN1_D2I_start_sequence();
 	M_ASN1_D2I_get(ret->cert_info,d2i_X509_CINF);
 	M_ASN1_D2I_get(ret->sig_alg,d2i_X509_ALGOR);
 	M_ASN1_D2I_get(ret->signature,d2i_ASN1_BIT_STRING);
 	if (ret->name != NULL) OPENSSL_free(ret->name);
 	ret->name=X509_NAME_oneline(ret->cert_info->subject,NULL,0);

 	M_ASN1_D2I_Finish(a,X509_free,ASN1_F_D2I_X509);
 	}

 X509 *X509_new(void)
 	{
 	X509 *ret=NULL;
 	ASN1_CTX c;

 	M_ASN1_New_Malloc(ret,X509);
 	ret->references=1;
 	ret->valid=0;
 	ret->ex_flags = 0;
 	ret->ex_pathlen = -1;
 	ret->name=NULL;
 	ret->aux=NULL;
 	M_ASN1_New(ret->cert_info,X509_CINF_new);
 	M_ASN1_New(ret->sig_alg,X509_ALGOR_new);
 	M_ASN1_New(ret->signature,M_ASN1_BIT_STRING_new);
 	CRYPTO_new_ex_data(x509_meth, ret, &ret->ex_data);
 	return(ret);
 	M_ASN1_New_Error(ASN1_F_X509_NEW);
 	}

 void X509_free(X509 *a)
 	{
 	int i;

 	if (a == NULL) return;

 	i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_X509);
 #ifdef REF_PRINT
 	REF_PRINT("X509",a);
 #endif
 	if (i > 0) return;
 #ifdef REF_CHECK
 	if (i < 0)
 		{
 		fprintf(stderr,"X509_free, bad reference count\n");
 		abort();
 		}
 #endif

 	CRYPTO_free_ex_data(x509_meth,a,&a->ex_data);
 	X509_CINF_free(a->cert_info);
 	X509_ALGOR_free(a->sig_alg);
 	M_ASN1_BIT_STRING_free(a->signature);
 	X509_CERT_AUX_free(a->aux);

 	if (a->name != NULL) OPENSSL_free(a->name);
 	OPENSSL_free(a);
 	}

 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)
         {
 	x509_meth_num++;
 	return(CRYPTO_get_ex_new_index(x509_meth_num-1,
 		&x509_meth,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, unsigned char **pp, long length)
 {
 	unsigned char *q;
 	X509 *ret;
 	/* Save start position */
 	q = *pp;
 	ret = d2i_X509(a, pp, length);
 	/* If certificate unreadable then forget it */
 	if(!ret) return NULL;
 	/* update length */
 	length -= *pp - q;
 	if(!length) return ret;
 	if(!d2i_X509_CERT_AUX(&ret->aux, pp, length)) goto err;
 	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;
 }
	/* crypto/asn1/x_x509.c */
	/* 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 "cryptlib.h"
	#include <openssl/evp.h>
	#include <openssl/asn1_mac.h>
	#include <openssl/x509.h>

	static int x509_meth_num = 0;
	static STACK_OF(CRYPTO_EX_DATA_FUNCS) *x509_meth = NULL;

	static ASN1_METHOD meth={
	(int (*)()) i2d_X509,
	(char ()())d2i_X509,
	(char ()())X509_new,
	(void (*)()) X509_free};

	ASN1_METHOD *X509_asn1_meth(void)
	{
	return(&meth);
	}

	int i2d_X509(X509 a, unsigned char *pp)
	{
	M_ASN1_I2D_vars(a);

	M_ASN1_I2D_len(a->cert_info, i2d_X509_CINF);
	M_ASN1_I2D_len(a->sig_alg, i2d_X509_ALGOR);
	M_ASN1_I2D_len(a->signature, i2d_ASN1_BIT_STRING);

	M_ASN1_I2D_seq_total();

	M_ASN1_I2D_put(a->cert_info, i2d_X509_CINF);
	M_ASN1_I2D_put(a->sig_alg, i2d_X509_ALGOR);
	M_ASN1_I2D_put(a->signature, i2d_ASN1_BIT_STRING);

	M_ASN1_I2D_finish();
	}

	X509 d2i_X509(X509 a, unsigned char *pp, long length)
	{
	M_ASN1_D2I_vars(a,X509 *,X509_new);

	M_ASN1_D2I_Init();
	M_ASN1_D2I_start_sequence();
	M_ASN1_D2I_get(ret->cert_info,d2i_X509_CINF);
	M_ASN1_D2I_get(ret->sig_alg,d2i_X509_ALGOR);
	M_ASN1_D2I_get(ret->signature,d2i_ASN1_BIT_STRING);
	if (ret->name != NULL) OPENSSL_free(ret->name);
	ret->name=X509_NAME_oneline(ret->cert_info->subject,NULL,0);

	M_ASN1_D2I_Finish(a,X509_free,ASN1_F_D2I_X509);
	}

	X509 *X509_new(void)
	{
	X509 *ret=NULL;
	ASN1_CTX c;

	M_ASN1_New_Malloc(ret,X509);
	ret->references=1;
	ret->valid=0;
	ret->ex_flags = 0;
	ret->ex_pathlen = -1;
	ret->name=NULL;
	ret->aux=NULL;
	M_ASN1_New(ret->cert_info,X509_CINF_new);
	M_ASN1_New(ret->sig_alg,X509_ALGOR_new);
	M_ASN1_New(ret->signature,M_ASN1_BIT_STRING_new);
	CRYPTO_new_ex_data(x509_meth, ret, &ret->ex_data);
	return(ret);
	M_ASN1_New_Error(ASN1_F_X509_NEW);
	}

	void X509_free(X509 *a)
	{
	int i;

	if (a == NULL) return;

	i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_X509);
	#ifdef REF_PRINT
	REF_PRINT("X509",a);
	#endif
	if (i > 0) return;
	#ifdef REF_CHECK
	if (i < 0)
	{
	fprintf(stderr,"X509_free, bad reference count\n");
	abort();
	}
	#endif

	CRYPTO_free_ex_data(x509_meth,a,&a->ex_data);
	X509_CINF_free(a->cert_info);
	X509_ALGOR_free(a->sig_alg);
	M_ASN1_BIT_STRING_free(a->signature);
	X509_CERT_AUX_free(a->aux);

	if (a->name != NULL) OPENSSL_free(a->name);
	OPENSSL_free(a);
	}

	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)
	{
	x509_meth_num++;
	return(CRYPTO_get_ex_new_index(x509_meth_num-1,
	&x509_meth,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, unsigned char *pp, long length)
	{
	unsigned char *q;
	X509 *ret;
	/* Save start position */
	q = *pp;
	ret = d2i_X509(a, pp, length);
	/* If certificate unreadable then forget it */
	if(!ret) return NULL;
	/* update length */
	length -= *pp - q;
	if(!length) return ret;
	if(!d2i_X509_CERT_AUX(&ret->aux, pp, length)) goto err;
	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;
	}