-/* asn_pack.c */
/*
- * Written by Dr Stephen N Henson (steve@openssl.org) 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).
+ * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
#include <stdio.h>
-#include "cryptlib.h"
+#include "internal/cryptlib.h"
#include <openssl/asn1.h>
-#ifndef NO_ASN1_OLD
-
/* ASN1 packing and unpacking functions */
-/* Turn an ASN1 encoded SEQUENCE OF into a STACK of structures */
-
-STACK_OF(OPENSSL_BLOCK) *ASN1_seq_unpack(const unsigned char *buf, int len,
- d2i_of_void *d2i,
- void (*free_func) (OPENSSL_BLOCK))
-{
- STACK_OF(OPENSSL_BLOCK) *sk;
- const unsigned char *pbuf;
- pbuf = buf;
- if (!(sk = d2i_ASN1_SET(NULL, &pbuf, len, d2i, free_func,
- V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL)))
- ASN1err(ASN1_F_ASN1_SEQ_UNPACK, ASN1_R_DECODE_ERROR);
- return sk;
-}
-
-/*
- * Turn a STACK structures into an ASN1 encoded SEQUENCE OF structure in a
- * OPENSSL_malloc'ed buffer
- */
-
-unsigned char *ASN1_seq_pack(STACK_OF(OPENSSL_BLOCK) *safes, i2d_of_void *i2d,
- unsigned char **buf, int *len)
-{
- int safelen;
- unsigned char *safe, *p;
- if (!(safelen = i2d_ASN1_SET(safes, NULL, i2d, V_ASN1_SEQUENCE,
- V_ASN1_UNIVERSAL, IS_SEQUENCE))) {
- ASN1err(ASN1_F_ASN1_SEQ_PACK, ASN1_R_ENCODE_ERROR);
- return NULL;
- }
- if (!(safe = OPENSSL_malloc(safelen))) {
- ASN1err(ASN1_F_ASN1_SEQ_PACK, ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- p = safe;
- i2d_ASN1_SET(safes, &p, i2d, V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL,
- IS_SEQUENCE);
- if (len)
- *len = safelen;
- if (buf)
- *buf = safe;
- return safe;
-}
-
-/* Extract an ASN1 object from an ASN1_STRING */
-
-void *ASN1_unpack_string(ASN1_STRING *oct, d2i_of_void *d2i)
-{
- const unsigned char *p;
- char *ret;
-
- p = oct->data;
- if (!(ret = d2i(NULL, &p, oct->length)))
- ASN1err(ASN1_F_ASN1_UNPACK_STRING, ASN1_R_DECODE_ERROR);
- return ret;
-}
-
-/* Pack an ASN1 object into an ASN1_STRING */
-
-ASN1_STRING *ASN1_pack_string(void *obj, i2d_of_void *i2d, ASN1_STRING **oct)
-{
- unsigned char *p;
- ASN1_STRING *octmp;
-
- if (!oct || !*oct) {
- if (!(octmp = ASN1_STRING_new())) {
- ASN1err(ASN1_F_ASN1_PACK_STRING, ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- if (oct)
- *oct = octmp;
- } else
- octmp = *oct;
-
- if (!(octmp->length = i2d(obj, NULL))) {
- ASN1err(ASN1_F_ASN1_PACK_STRING, ASN1_R_ENCODE_ERROR);
- goto err;
- }
- if (!(p = OPENSSL_malloc(octmp->length))) {
- ASN1err(ASN1_F_ASN1_PACK_STRING, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- octmp->data = p;
- i2d(obj, &p);
- return octmp;
- err:
- if (!oct || !*oct) {
- ASN1_STRING_free(octmp);
- if (oct)
- *oct = NULL;
- }
- return NULL;
-}
-
-#endif
-
-/* ASN1_ITEM versions of the above */
-
ASN1_STRING *ASN1_item_pack(void *obj, const ASN1_ITEM *it, ASN1_STRING **oct)
{
ASN1_STRING *octmp;
- if (!oct || !*oct) {
- if (!(octmp = ASN1_STRING_new())) {
+ if (oct == NULL || *oct == NULL) {
+ if ((octmp = ASN1_STRING_new()) == NULL) {
ASN1err(ASN1_F_ASN1_ITEM_PACK, ERR_R_MALLOC_FAILURE);
return NULL;
}
- if (oct)
- *oct = octmp;
- } else
+ } else {
octmp = *oct;
-
- if (octmp->data) {
- OPENSSL_free(octmp->data);
- octmp->data = NULL;
}
- if (!(octmp->length = ASN1_item_i2d(obj, &octmp->data, it))) {
+ OPENSSL_free(octmp->data);
+ octmp->data = NULL;
+
+ if ((octmp->length = ASN1_item_i2d(obj, &octmp->data, it)) == 0) {
ASN1err(ASN1_F_ASN1_ITEM_PACK, ASN1_R_ENCODE_ERROR);
- return NULL;
+ goto err;
}
- if (!octmp->data) {
+ if (octmp->data == NULL) {
ASN1err(ASN1_F_ASN1_ITEM_PACK, ERR_R_MALLOC_FAILURE);
- return NULL;
+ goto err;
}
+
+ if (oct != NULL && *oct == NULL)
+ *oct = octmp;
+
return octmp;
+ err:
+ if (oct == NULL || *oct == NULL)
+ ASN1_STRING_free(octmp);
+ return NULL;
}
/* Extract an ASN1 object from an ASN1_STRING */
-void *ASN1_item_unpack(ASN1_STRING *oct, const ASN1_ITEM *it)
+void *ASN1_item_unpack(const ASN1_STRING *oct, const ASN1_ITEM *it)
{
const unsigned char *p;
void *ret;
p = oct->data;
- if (!(ret = ASN1_item_d2i(NULL, &p, oct->length, it)))
+ if ((ret = ASN1_item_d2i(NULL, &p, oct->length, it)) == NULL)
ASN1err(ASN1_F_ASN1_ITEM_UNPACK, ASN1_R_DECODE_ERROR);
return ret;
}
projects / openssl.git / blobdiff