--- /dev/null
+/* 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).
+ *
+ */
+
+#include <stdio.h>
+#include "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 ())) {
+ ASN1err(ASN1_F_ASN1_ITEM_PACK,ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+ if (oct) *oct = octmp;
+ } else octmp = *oct;
+
+ if(octmp->data) {
+ OPENSSL_free(octmp->data);
+ octmp->data = NULL;
+ }
+
+ if (!(octmp->length = ASN1_item_i2d(obj, &octmp->data, it))) {
+ ASN1err(ASN1_F_ASN1_ITEM_PACK,ASN1_R_ENCODE_ERROR);
+ return NULL;
+ }
+ if (!octmp->data) {
+ ASN1err(ASN1_F_ASN1_ITEM_PACK,ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+ return octmp;
+}
+
+/* Extract an ASN1 object from an ASN1_STRING */
+
+void *ASN1_item_unpack(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)))
+ ASN1err(ASN1_F_ASN1_ITEM_UNPACK,ASN1_R_DECODE_ERROR);
+ return ret;
+}
projects / cassiopeia.git / blobdiff