[thirdparty/openssl.git] / crypto / x509 / x509_lu.c

/* crypto/x509/x509_lu.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 "lhash.h"
#include "x509.h"

static STACK *x509_store_meth=NULL;
static STACK *x509_store_ctx_meth=NULL;

X509_LOOKUP *X509_LOOKUP_new(method)
X509_LOOKUP_METHOD *method;
	{
	X509_LOOKUP *ret;

	ret=(X509_LOOKUP *)Malloc(sizeof(X509_LOOKUP));
	if (ret == NULL) return(NULL);

	ret->init=0;
	ret->skip=0;
	ret->method=method;
	ret->method_data=NULL;
	ret->store_ctx=NULL;
	if ((method->new_item != NULL) && !method->new_item(ret))
		{
		Free(ret);
		return(NULL);
		}
	return(ret);
	}

void X509_LOOKUP_free(ctx)
X509_LOOKUP *ctx;
	{
	if (ctx == NULL) return;
	if (	(ctx->method != NULL) &&
		(ctx->method->free != NULL))
		ctx->method->free(ctx);
	Free(ctx);
	}

int X509_LOOKUP_init(ctx)
X509_LOOKUP *ctx;
	{
	if (ctx->method == NULL) return(0);
	if (ctx->method->init != NULL)
		return(ctx->method->init(ctx));
	else
		return(1);
	}

int X509_LOOKUP_shutdown(ctx)
X509_LOOKUP *ctx;
	{
	if (ctx->method == NULL) return(0);
	if (ctx->method->init != NULL)
		return(ctx->method->shutdown(ctx));
	else
		return(1);
	}

int X509_LOOKUP_ctrl(ctx,cmd,argc,argl,ret)
X509_LOOKUP *ctx;
int cmd;
char *argc;
long argl;
char **ret;
	{
	if (ctx->method == NULL) return(-1);
	if (ctx->method->ctrl != NULL)
		return(ctx->method->ctrl(ctx,cmd,argc,argl,ret));
	else
		return(1);
	}

int X509_LOOKUP_by_subject(ctx,type,name,ret)
X509_LOOKUP *ctx;
int type;
X509_NAME *name;
X509_OBJECT *ret;
	{
	if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL))
		return(X509_LU_FAIL);
	if (ctx->skip) return(0);
	return(ctx->method->get_by_subject(ctx,type,name,ret));
	}

int X509_LOOKUP_by_issuer_serial(ctx,type,name,serial,ret)
X509_LOOKUP *ctx;
int type;
X509_NAME *name;
ASN1_INTEGER *serial;
X509_OBJECT *ret;
	{
	if ((ctx->method == NULL) ||
		(ctx->method->get_by_issuer_serial == NULL))
		return(X509_LU_FAIL);
	return(ctx->method->get_by_issuer_serial(ctx,type,name,serial,ret));
	}

int X509_LOOKUP_by_fingerprint(ctx,type,bytes,len,ret)
X509_LOOKUP *ctx;
int type;
unsigned char *bytes;
int len;
X509_OBJECT *ret;
	{
	if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL))
		return(X509_LU_FAIL);
	return(ctx->method->get_by_fingerprint(ctx,type,bytes,len,ret));
	}

int X509_LOOKUP_by_alias(ctx,type,str,len,ret)
X509_LOOKUP *ctx;
int type;
char *str;
int len;
X509_OBJECT *ret;
	{
	if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL))
		return(X509_LU_FAIL);
	return(ctx->method->get_by_alias(ctx,str,len,ret));
	}

static unsigned long x509_object_hash(a)
X509_OBJECT *a;
	{
	unsigned long h;

	switch (a->type)
		{
	case X509_LU_X509:
		h=X509_NAME_hash(a->data.x509->cert_info->subject);
		break;
	case X509_LU_CRL:
		h=X509_NAME_hash(a->data.crl->crl->issuer);
		break;
	default:
		abort();
		}
	return(h);
	}

static int x509_object_cmp(a,b)
X509_OBJECT *a,*b;
	{
	int ret;

	ret=(a->type - b->type);
	if (ret) return(ret);
	switch (a->type)
		{
	case X509_LU_X509:
		ret=X509_subject_name_cmp(a->data.x509,b->data.x509);
		break;
	case X509_LU_CRL:
		ret=X509_CRL_cmp(a->data.crl,b->data.crl);
		break;
	default:
		abort();
		}
	return(ret);
	}

X509_STORE *X509_STORE_new()
	{
	X509_STORE *ret;

	if ((ret=(X509_STORE *)Malloc(sizeof(X509_STORE))) == NULL)
		return(NULL);
	ret->certs=lh_new(x509_object_hash,x509_object_cmp);
	ret->cache=1;
	ret->get_cert_methods=sk_new_null();
	ret->verify=NULL;
	ret->verify_cb=NULL;
	memset(&ret->ex_data,0,sizeof(CRYPTO_EX_DATA));
	ret->references=1;
	return(ret);
	}

static void cleanup(a)
X509_OBJECT *a;
	{
	if (a->type == X509_LU_X509)
		{
		X509_free(a->data.x509);
		}
	else if (a->type == X509_LU_CRL)
		{
		X509_CRL_free(a->data.crl);
		}
	else
		abort();

	Free(a);
	}

void X509_STORE_free(vfy)
X509_STORE *vfy;
	{
	int i;
	STACK *sk;
	X509_LOOKUP *lu;

	sk=vfy->get_cert_methods;
	for (i=0; i<sk_num(sk); i++)
		{
		lu=(X509_LOOKUP *)sk_value(sk,i);
		X509_LOOKUP_shutdown(lu);
		X509_LOOKUP_free(lu);
		}
	sk_free(sk);

	CRYPTO_free_ex_data(x509_store_meth,(char *)vfy,&vfy->ex_data);
	lh_doall(vfy->certs,cleanup);
	lh_free(vfy->certs);
	Free(vfy);
	}

X509_LOOKUP *X509_STORE_add_lookup(v,m)
X509_STORE *v;
X509_LOOKUP_METHOD *m;
	{
	int i;
	STACK *sk;
	X509_LOOKUP *lu;

	sk=v->get_cert_methods;
	for (i=0; i<sk_num(sk); i++)
		{
		lu=(X509_LOOKUP *)sk_value(sk,i);
		if (m == lu->method)
			{
			return(lu);
			}
		}
	/* a new one */
	lu=X509_LOOKUP_new(m);
	if (lu == NULL)
		return(NULL);
	else
		{
		lu->store_ctx=v;
		if (sk_push(v->get_cert_methods,(char *)lu))
			return(lu);
		else
			{
			X509_LOOKUP_free(lu);
			return(NULL);
			}
		}
	}

int X509_STORE_get_by_subject(vs,type,name,ret)
X509_STORE_CTX *vs;
int type;
X509_NAME *name;
X509_OBJECT *ret;
	{
	X509_STORE *ctx=vs->ctx;
	X509_LOOKUP *lu;
	X509_OBJECT stmp,*tmp;
	int i,j;

	tmp=X509_OBJECT_retrive_by_subject(ctx->certs,type,name);

	if (tmp == NULL)
		{
		for (i=vs->current_method; i<sk_num(ctx->get_cert_methods); i++)
			{
			lu=(X509_LOOKUP *)sk_value(ctx->get_cert_methods,i);
			j=X509_LOOKUP_by_subject(lu,type,name,&stmp);
			if (j < 0)
				{
				vs->current_method=j;
				return(j);
				}
			else if (j)
				{
				tmp= &stmp;
				break;
				}
			}
		vs->current_method=0;
		if (tmp == NULL)
			return(0);
		}

/*	if (ret->data.ptr != NULL)
		X509_OBJECT_free_contents(ret); */

	ret->type=tmp->type;
	ret->data.ptr=tmp->data.ptr;

	X509_OBJECT_up_ref_count(ret);

	return(1);
	}

void X509_OBJECT_up_ref_count(a)
X509_OBJECT *a;
	{
	switch (a->type)
		{
	case X509_LU_X509:
		CRYPTO_add(&a->data.x509->references,1,CRYPTO_LOCK_X509);
		break;
	case X509_LU_CRL:
		CRYPTO_add(&a->data.crl->references,1,CRYPTO_LOCK_X509_CRL);
		break;
		}
	}

void X509_OBJECT_free_contents(a)
X509_OBJECT *a;
	{
	switch (a->type)
		{
	case X509_LU_X509:
		X509_free(a->data.x509);
		break;
	case X509_LU_CRL:
		X509_CRL_free(a->data.crl);
		break;
		}
	}

X509_OBJECT *X509_OBJECT_retrive_by_subject(h,type,name)
LHASH *h;
int type;
X509_NAME *name;
	{
	X509_OBJECT stmp,*tmp;
	X509 x509_s;
	X509_CINF cinf_s;
	X509_CRL crl_s;
	X509_CRL_INFO crl_info_s;

	stmp.type=type;
	switch (type)
		{
	case X509_LU_X509:
		stmp.data.x509= &x509_s;
		x509_s.cert_info= &cinf_s;
		cinf_s.subject=name;
		break;
	case X509_LU_CRL:
		stmp.data.crl= &crl_s;
		crl_s.crl= &crl_info_s;
		crl_info_s.issuer=name;
		break;
	default:
		abort();
		}

	tmp=(X509_OBJECT *)lh_retrieve(h,(char *)&stmp);
	return(tmp);
	}

void X509_STORE_CTX_init(ctx,store,x509,chain)
X509_STORE_CTX *ctx;
X509_STORE *store;
X509 *x509;
STACK *chain;
	{
	ctx->ctx=store;
	ctx->current_method=0;
	ctx->cert=x509;
	ctx->untrusted=chain;
	ctx->last_untrusted=0;
	ctx->valid=0;
	ctx->chain=NULL;
	ctx->depth=10;
	ctx->error=0;
	ctx->current_cert=NULL;
	memset(&(ctx->ex_data),0,sizeof(CRYPTO_EX_DATA));
	}

void X509_STORE_CTX_cleanup(ctx)
X509_STORE_CTX *ctx;
	{
	if (ctx->chain != NULL)
		{
		sk_pop_free(ctx->chain,X509_free);
		ctx->chain=NULL;
		}
	CRYPTO_free_ex_data(x509_store_ctx_meth,(char *)ctx,&(ctx->ex_data));
	memset(&ctx->ex_data,0,sizeof(CRYPTO_EX_DATA));
	}
Commit	Line	Data
d02b48c6	1	/* crypto/x509/x509_lu.c */
58964a49	2	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6 RE	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	#include "cryptlib.h"
	61	#include "lhash.h"
	62	#include "x509.h"
	63
58964a49 RE	64	static STACK *x509_store_meth=NULL;
	65	static STACK *x509_store_ctx_meth=NULL;
	66
d02b48c6 RE	67	X509_LOOKUP *X509_LOOKUP_new(method)
	68	X509_LOOKUP_METHOD *method;
	69	{
	70	X509_LOOKUP *ret;
	71
	72	ret=(X509_LOOKUP *)Malloc(sizeof(X509_LOOKUP));
	73	if (ret == NULL) return(NULL);
	74
	75	ret->init=0;
	76	ret->skip=0;
	77	ret->method=method;
	78	ret->method_data=NULL;
	79	ret->store_ctx=NULL;
	80	if ((method->new_item != NULL) && !method->new_item(ret))
	81	{
	82	Free(ret);
	83	return(NULL);
	84	}
	85	return(ret);
	86	}
	87
	88	void X509_LOOKUP_free(ctx)
	89	X509_LOOKUP *ctx;
	90	{
	91	if (ctx == NULL) return;
	92	if ( (ctx->method != NULL) &&
	93	(ctx->method->free != NULL))
	94	ctx->method->free(ctx);
	95	Free(ctx);
	96	}
	97
	98	int X509_LOOKUP_init(ctx)
	99	X509_LOOKUP *ctx;
	100	{
	101	if (ctx->method == NULL) return(0);
	102	if (ctx->method->init != NULL)
	103	return(ctx->method->init(ctx));
	104	else
	105	return(1);
	106	}
	107
	108	int X509_LOOKUP_shutdown(ctx)
	109	X509_LOOKUP *ctx;
	110	{
	111	if (ctx->method == NULL) return(0);
	112	if (ctx->method->init != NULL)
	113	return(ctx->method->shutdown(ctx));
	114	else
	115	return(1);
	116	}
	117
	118	int X509_LOOKUP_ctrl(ctx,cmd,argc,argl,ret)
	119	X509_LOOKUP *ctx;
	120	int cmd;
	121	char *argc;
	122	long argl;
	123	char **ret;
	124	{
	125	if (ctx->method == NULL) return(-1);
	126	if (ctx->method->ctrl != NULL)
	127	return(ctx->method->ctrl(ctx,cmd,argc,argl,ret));
	128	else
	129	return(1);
	130	}
131
132	int X509_LOOKUP_by_subject(ctx,type,name,ret)
133	X509_LOOKUP *ctx;
134	int type;
135	X509_NAME *name;
136	X509_OBJECT *ret;
137	{
138	if ((ctx->method == NULL) \|\| (ctx->method->get_by_subject == NULL))
139	return(X509_LU_FAIL);
140	if (ctx->skip) return(0);
141	return(ctx->method->get_by_subject(ctx,type,name,ret));
142	}
143
144	int X509_LOOKUP_by_issuer_serial(ctx,type,name,serial,ret)
145	X509_LOOKUP *ctx;
146	int type;
147	X509_NAME *name;
148	ASN1_INTEGER *serial;
149	X509_OBJECT *ret;
150	{
151	if ((ctx->method == NULL) \|\|
152	(ctx->method->get_by_issuer_serial == NULL))
153	return(X509_LU_FAIL);
154	return(ctx->method->get_by_issuer_serial(ctx,type,name,serial,ret));
155	}
156
157	int X509_LOOKUP_by_fingerprint(ctx,type,bytes,len,ret)
158	X509_LOOKUP *ctx;
159	int type;
160	unsigned char *bytes;
161	int len;
162	X509_OBJECT *ret;
163	{
164	if ((ctx->method == NULL) \|\| (ctx->method->get_by_fingerprint == NULL))
165	return(X509_LU_FAIL);
166	return(ctx->method->get_by_fingerprint(ctx,type,bytes,len,ret));
167	}
168
169	int X509_LOOKUP_by_alias(ctx,type,str,len,ret)
170	X509_LOOKUP *ctx;
171	int type;
172	char *str;
173	int len;
174	X509_OBJECT *ret;
175	{
58964a49	176	if ((ctx->method == NULL) \|\| (ctx->method->get_by_alias == NULL))
d02b48c6 RE	177	return(X509_LU_FAIL);
	178	return(ctx->method->get_by_alias(ctx,str,len,ret));
	179	}
	180
	181	static unsigned long x509_object_hash(a)
	182	X509_OBJECT *a;
	183	{
	184	unsigned long h;
	185
	186	switch (a->type)
	187	{
	188	case X509_LU_X509:
	189	h=X509_NAME_hash(a->data.x509->cert_info->subject);
	190	break;
	191	case X509_LU_CRL:
	192	h=X509_NAME_hash(a->data.crl->crl->issuer);
	193	break;
	194	default:
	195	abort();
	196	}
	197	return(h);
	198	}
	199
	200	static int x509_object_cmp(a,b)
	201	X509_OBJECT a,b;
	202	{
	203	int ret;
	204
	205	ret=(a->type - b->type);
	206	if (ret) return(ret);
	207	switch (a->type)
	208	{
	209	case X509_LU_X509:
	210	ret=X509_subject_name_cmp(a->data.x509,b->data.x509);
	211	break;
	212	case X509_LU_CRL:
	213	ret=X509_CRL_cmp(a->data.crl,b->data.crl);
	214	break;
	215	default:
	216	abort();
	217	}
	218	return(ret);
	219	}
	220
	221	X509_STORE *X509_STORE_new()
	222	{
	223	X509_STORE *ret;
	224
	225	if ((ret=(X509_STORE *)Malloc(sizeof(X509_STORE))) == NULL)
	226	return(NULL);
	227	ret->certs=lh_new(x509_object_hash,x509_object_cmp);
	228	ret->cache=1;
	229	ret->get_cert_methods=sk_new_null();
	230	ret->verify=NULL;
	231	ret->verify_cb=NULL;
58964a49	232	memset(&ret->ex_data,0,sizeof(CRYPTO_EX_DATA));
d02b48c6 RE	233	ret->references=1;
	234	return(ret);
	235	}
	236
	237	static void cleanup(a)
	238	X509_OBJECT *a;
	239	{
	240	if (a->type == X509_LU_X509)
	241	{
	242	X509_free(a->data.x509);
	243	}
	244	else if (a->type == X509_LU_CRL)
	245	{
	246	X509_CRL_free(a->data.crl);
	247	}
	248	else
	249	abort();
	250
	251	Free(a);
	252	}
	253
	254	void X509_STORE_free(vfy)
	255	X509_STORE *vfy;
	256	{
	257	int i;
	258	STACK *sk;
	259	X509_LOOKUP *lu;
	260
	261	sk=vfy->get_cert_methods;
	262	for (i=0; i<sk_num(sk); i++)
	263	{
	264	lu=(X509_LOOKUP *)sk_value(sk,i);
	265	X509_LOOKUP_shutdown(lu);
	266	X509_LOOKUP_free(lu);
	267	}
	268	sk_free(sk);
	269
58964a49	270	CRYPTO_free_ex_data(x509_store_meth,(char *)vfy,&vfy->ex_data);
d02b48c6 RE	271	lh_doall(vfy->certs,cleanup);
	272	lh_free(vfy->certs);
	273	Free(vfy);
	274	}
	275
	276	X509_LOOKUP *X509_STORE_add_lookup(v,m)
	277	X509_STORE *v;
	278	X509_LOOKUP_METHOD *m;
	279	{
	280	int i;
	281	STACK *sk;
	282	X509_LOOKUP *lu;
	283
	284	sk=v->get_cert_methods;
	285	for (i=0; i<sk_num(sk); i++)
	286	{
	287	lu=(X509_LOOKUP *)sk_value(sk,i);
	288	if (m == lu->method)
	289	{
	290	return(lu);
	291	}
	292	}
	293	/* a new one */
	294	lu=X509_LOOKUP_new(m);
	295	if (lu == NULL)
	296	return(NULL);
	297	else
	298	{
	299	lu->store_ctx=v;
	300	if (sk_push(v->get_cert_methods,(char *)lu))
	301	return(lu);
	302	else
	303	{
	304	X509_LOOKUP_free(lu);
	305	return(NULL);
	306	}
	307	}
	308	}
	309
	310	int X509_STORE_get_by_subject(vs,type,name,ret)
	311	X509_STORE_CTX *vs;
	312	int type;
	313	X509_NAME *name;
	314	X509_OBJECT *ret;
	315	{
	316	X509_STORE *ctx=vs->ctx;
	317	X509_LOOKUP *lu;
	318	X509_OBJECT stmp,*tmp;
	319	int i,j;
	320
	321	tmp=X509_OBJECT_retrive_by_subject(ctx->certs,type,name);
	322
	323	if (tmp == NULL)
	324	{
	325	for (i=vs->current_method; i<sk_num(ctx->get_cert_methods); i++)
	326	{
	327	lu=(X509_LOOKUP *)sk_value(ctx->get_cert_methods,i);
	328	j=X509_LOOKUP_by_subject(lu,type,name,&stmp);
	329	if (j < 0)
	330	{
	331	vs->current_method=j;
	332	return(j);
	333	}
	334	else if (j)
335	{
336	tmp= &stmp;
337	break;
338	}
339	}
340	vs->current_method=0;
341	if (tmp == NULL)
342	return(0);
343	}
344
345	/* if (ret->data.ptr != NULL)
346	X509_OBJECT_free_contents(ret); */
347
348	ret->type=tmp->type;
349	ret->data.ptr=tmp->data.ptr;
350
351	X509_OBJECT_up_ref_count(ret);
352
353	return(1);
354	}
355
356	void X509_OBJECT_up_ref_count(a)
357	X509_OBJECT *a;
358	{
359	switch (a->type)
360	{
361	case X509_LU_X509:
362	CRYPTO_add(&a->data.x509->references,1,CRYPTO_LOCK_X509);
363	break;
364	case X509_LU_CRL:
365	CRYPTO_add(&a->data.crl->references,1,CRYPTO_LOCK_X509_CRL);
366	break;
367	}
368	}
369
370	void X509_OBJECT_free_contents(a)
371	X509_OBJECT *a;
372	{
373	switch (a->type)
374	{
375	case X509_LU_X509:
376	X509_free(a->data.x509);
377	break;
378	case X509_LU_CRL:
379	X509_CRL_free(a->data.crl);
380	break;
381	}
382	}
383
384	X509_OBJECT *X509_OBJECT_retrive_by_subject(h,type,name)
385	LHASH *h;
386	int type;
387	X509_NAME *name;
388	{
389	X509_OBJECT stmp,*tmp;
390	X509 x509_s;
391	X509_CINF cinf_s;
392	X509_CRL crl_s;
393	X509_CRL_INFO crl_info_s;
394
395	stmp.type=type;
396	switch (type)
397	{
398	case X509_LU_X509:
399	stmp.data.x509= &x509_s;
400	x509_s.cert_info= &cinf_s;
401	cinf_s.subject=name;
402	break;
403	case X509_LU_CRL:
404	stmp.data.crl= &crl_s;
405	crl_s.crl= &crl_info_s;
406	crl_info_s.issuer=name;
407	break;
408	default:
409	abort();
410	}
411
412	tmp=(X509_OBJECT )lh_retrieve(h,(char )&stmp);
413	return(tmp);
414	}
415
416	void X509_STORE_CTX_init(ctx,store,x509,chain)
417	X509_STORE_CTX *ctx;
418	X509_STORE *store;
419	X509 *x509;
420	STACK *chain;
421	{
422	ctx->ctx=store;
423	ctx->current_method=0;
424	ctx->cert=x509;
425	ctx->untrusted=chain;
426	ctx->last_untrusted=0;
427	ctx->valid=0;
428	ctx->chain=NULL;
429	ctx->depth=10;
430	ctx->error=0;
431	ctx->current_cert=NULL;
58964a49	432	memset(&(ctx->ex_data),0,sizeof(CRYPTO_EX_DATA));
d02b48c6 RE	433	}
	434
	435	void X509_STORE_CTX_cleanup(ctx)
	436	X509_STORE_CTX *ctx;
	437	{
	438	if (ctx->chain != NULL)
	439	{
	440	sk_pop_free(ctx->chain,X509_free);
	441	ctx->chain=NULL;
	442	}
58964a49 RE	443	CRYPTO_free_ex_data(x509_store_ctx_meth,(char *)ctx,&(ctx->ex_data));
58964a49 RE	444	memset(&ctx->ex_data,0,sizeof(CRYPTO_EX_DATA));
d02b48c6 RE	445	}
d02b48c6 RE	446