/* a_x509a.c */

/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL

 * project 1999.

 */

/* ====================================================================

 * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.

 *

 * 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 above 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 acknowledgment:

 *    "This product includes software developed by the OpenSSL Project

 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"

 *

 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to

 *    endorse or promote products derived from this software without

 *    prior written permission. For written permission, please contact

 *    licensing@OpenSSL.org.

 *

 * 5. Products derived from this software may not be called "OpenSSL"

 *    nor may "OpenSSL" appear in their names without prior written

 *    permission of the OpenSSL Project.

 *

 * 6. Redistributions of any form whatsoever must retain the following

 *    acknowledgment:

 *    "This product includes software developed by the OpenSSL Project

 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"

 *

 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY

 * EXPRESSED 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 OpenSSL PROJECT OR

 * ITS 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.

 * ====================================================================

 *

 * This product includes cryptographic software written by Eric Young

 * (eay@cryptsoft.com).  This product includes software written by Tim

 * Hudson (tjh@cryptsoft.com).

 *

 */

#include <stdio.h>

#include "cryptlib.h"

#include <openssl/evp.h>

#include <openssl/asn1t.h>

#include <openssl/x509.h>

/* X509_CERT_AUX routines. These are used to encode additional

 * user modifiable data about a certificate. This data is

 * appended to the X509 encoding when the *_X509_AUX routines

 * are used. This means that the "traditional" X509 routines

 * will simply ignore the extra data. 

 */

static X509_CERT_AUX *aux_get(X509 *x);

ASN1_SEQUENCE(X509_CERT_AUX) = {

	ASN1_SEQUENCE_OF_OPT(X509_CERT_AUX, trust, ASN1_OBJECT),

	ASN1_IMP_SEQUENCE_OF_OPT(X509_CERT_AUX, reject, ASN1_OBJECT, 0),

	ASN1_OPT(X509_CERT_AUX, alias, ASN1_UTF8STRING),

	ASN1_OPT(X509_CERT_AUX, keyid, ASN1_OCTET_STRING),

	ASN1_IMP_SEQUENCE_OF_OPT(X509_CERT_AUX, other, X509_ALGOR, 1)

} ASN1_SEQUENCE_END(X509_CERT_AUX)

IMPLEMENT_ASN1_FUNCTIONS(X509_CERT_AUX)

static X509_CERT_AUX *aux_get(X509 *x)

{

	if(!x) return NULL;

	if(!x->aux && !(x->aux = X509_CERT_AUX_new())) return NULL;

	return x->aux;

}

EXPORT_C int X509_alias_set1(X509 *x, unsigned char *name, int len)

{

	X509_CERT_AUX *aux;

	if (!name)

		{

		if (!x || !x->aux || !x->aux->alias)

			return 1;

		ASN1_UTF8STRING_free(x->aux->alias);

		x->aux->alias = NULL;

		return 1;

		}

	if(!(aux = aux_get(x))) return 0;

	if(!aux->alias && !(aux->alias = ASN1_UTF8STRING_new())) return 0;

	return ASN1_STRING_set(aux->alias, name, len);

}

EXPORT_C int X509_keyid_set1(X509 *x, unsigned char *id, int len)

{

	X509_CERT_AUX *aux;

	if (!id)

		{

		if (!x || !x->aux || !x->aux->keyid)

			return 1;

		ASN1_OCTET_STRING_free(x->aux->keyid);

		x->aux->keyid = NULL;

		return 1;

		}

	if(!(aux = aux_get(x))) return 0;

	if(!aux->keyid && !(aux->keyid = ASN1_OCTET_STRING_new())) return 0;

	return ASN1_STRING_set(aux->keyid, id, len);

}

EXPORT_C unsigned char *X509_alias_get0(X509 *x, int *len)

{

	if(!x->aux || !x->aux->alias) return NULL;

	if(len) *len = x->aux->alias->length;

	return x->aux->alias->data;

}

EXPORT_C unsigned char *X509_keyid_get0(X509 *x, int *len)

{

	if(!x->aux || !x->aux->keyid) return NULL;

	if(len) *len = x->aux->keyid->length;

	return x->aux->keyid->data;

}

EXPORT_C int X509_add1_trust_object(X509 *x, ASN1_OBJECT *obj)

{

	X509_CERT_AUX *aux;

	ASN1_OBJECT *objtmp;

	if(!(objtmp = OBJ_dup(obj))) return 0;

	if(!(aux = aux_get(x))) return 0;

	if(!aux->trust

		&& !(aux->trust = sk_ASN1_OBJECT_new_null())) return 0;

	return sk_ASN1_OBJECT_push(aux->trust, objtmp);

}

EXPORT_C int X509_add1_reject_object(X509 *x, ASN1_OBJECT *obj)

{

	X509_CERT_AUX *aux;

	ASN1_OBJECT *objtmp;

	if(!(objtmp = OBJ_dup(obj))) return 0;

	if(!(aux = aux_get(x))) return 0;

	if(!aux->reject

		&& !(aux->reject = sk_ASN1_OBJECT_new_null())) return 0;

	return sk_ASN1_OBJECT_push(aux->reject, objtmp);

}

EXPORT_C void X509_trust_clear(X509 *x)

{

	if(x->aux && x->aux->trust) {

		sk_ASN1_OBJECT_pop_free(x->aux->trust, ASN1_OBJECT_free);

		x->aux->trust = NULL;

	}

}

EXPORT_C void X509_reject_clear(X509 *x)

{

	if(x->aux && x->aux->reject) {

		sk_ASN1_OBJECT_pop_free(x->aux->reject, ASN1_OBJECT_free);

		x->aux->reject = NULL;

	}

}

ASN1_SEQUENCE(X509_CERT_PAIR) = {

	ASN1_EXP_OPT(X509_CERT_PAIR, forward, X509, 0),

	ASN1_EXP_OPT(X509_CERT_PAIR, reverse, X509, 1)

} ASN1_SEQUENCE_END(X509_CERT_PAIR)

IMPLEMENT_ASN1_FUNCTIONS(X509_CERT_PAIR)