/* 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 <openssl/asn1.h>
#include <openssl/asn1t.h>
#include <openssl/err.h>
#include <openssl/mem.h>
#include <openssl/obj.h>
#include "internal.h"
int ASN1_TYPE_get(const ASN1_TYPE *a) {
switch (a->type) {
case V_ASN1_NULL:
case V_ASN1_BOOLEAN:
return a->type;
case V_ASN1_OBJECT:
return a->value.object != NULL ? a->type : 0;
default:
return a->value.asn1_string != NULL ? a->type : 0;
}
}
const void *asn1_type_value_as_pointer(const ASN1_TYPE *a) {
switch (a->type) {
case V_ASN1_NULL:
return NULL;
case V_ASN1_BOOLEAN:
return a->value.boolean ? (void *)0xff : NULL;
case V_ASN1_OBJECT:
return a->value.object;
default:
return a->value.asn1_string;
}
}
void asn1_type_cleanup(ASN1_TYPE *a) {
switch (a->type) {
case V_ASN1_NULL:
a->value.ptr = NULL;
break;
case V_ASN1_BOOLEAN:
a->value.boolean = ASN1_BOOLEAN_NONE;
break;
case V_ASN1_OBJECT:
ASN1_OBJECT_free(a->value.object);
a->value.object = NULL;
break;
default:
ASN1_STRING_free(a->value.asn1_string);
a->value.asn1_string = NULL;
break;
}
}
void ASN1_TYPE_set(ASN1_TYPE *a, int type, void *value) {
asn1_type_cleanup(a);
a->type = type;
switch (type) {
case V_ASN1_NULL:
a->value.ptr = NULL;
break;
case V_ASN1_BOOLEAN:
a->value.boolean = value ? ASN1_BOOLEAN_TRUE : ASN1_BOOLEAN_FALSE;
break;
case V_ASN1_OBJECT:
a->value.object = value;
break;
default:
a->value.asn1_string = value;
break;
}
}
int ASN1_TYPE_set1(ASN1_TYPE *a, int type, const void *value) {
if (!value || (type == V_ASN1_BOOLEAN)) {
void *p = (void *)value;
ASN1_TYPE_set(a, type, p);
} else if (type == V_ASN1_OBJECT) {
ASN1_OBJECT *odup;
odup = OBJ_dup(value);
if (!odup) {
return 0;
}
ASN1_TYPE_set(a, type, odup);
} else {
ASN1_STRING *sdup;
sdup = ASN1_STRING_dup(value);
if (!sdup) {
return 0;
}
ASN1_TYPE_set(a, type, sdup);
}
return 1;
}
// Returns 0 if they are equal, != 0 otherwise.
int ASN1_TYPE_cmp(const ASN1_TYPE *a, const ASN1_TYPE *b) {
int result = -1;
if (!a || !b || a->type != b->type) {
return -1;
}
switch (a->type) {
case V_ASN1_OBJECT:
result = OBJ_cmp(a->value.object, b->value.object);
break;
case V_ASN1_NULL:
result = 0; // They do not have content.
break;
case V_ASN1_BOOLEAN:
result = a->value.boolean - b->value.boolean;
break;
case V_ASN1_INTEGER:
case V_ASN1_ENUMERATED:
case V_ASN1_BIT_STRING:
case V_ASN1_OCTET_STRING:
case V_ASN1_SEQUENCE:
case V_ASN1_SET:
case V_ASN1_NUMERICSTRING:
case V_ASN1_PRINTABLESTRING:
case V_ASN1_T61STRING:
case V_ASN1_VIDEOTEXSTRING:
case V_ASN1_IA5STRING:
case V_ASN1_UTCTIME:
case V_ASN1_GENERALIZEDTIME:
case V_ASN1_GRAPHICSTRING:
case V_ASN1_VISIBLESTRING:
case V_ASN1_GENERALSTRING:
case V_ASN1_UNIVERSALSTRING:
case V_ASN1_BMPSTRING:
case V_ASN1_UTF8STRING:
case V_ASN1_OTHER:
default:
result = ASN1_STRING_cmp(a->value.asn1_string, b->value.asn1_string);
break;
}
return result;
}