diff options
Diffstat (limited to 'Cryptlib/OpenSSL/crypto/asn1/asn_pack.c')
-rw-r--r-- | Cryptlib/OpenSSL/crypto/asn1/asn_pack.c | 197 |
1 files changed, 171 insertions, 26 deletions
diff --git a/Cryptlib/OpenSSL/crypto/asn1/asn_pack.c b/Cryptlib/OpenSSL/crypto/asn1/asn_pack.c index 63bc3067..366caf01 100644 --- a/Cryptlib/OpenSSL/crypto/asn1/asn_pack.c +++ b/Cryptlib/OpenSSL/crypto/asn1/asn_pack.c @@ -1,62 +1,207 @@ +/* asn_pack.c */ /* - * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved. + * 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). * - * 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 "internal/cryptlib.h" +#include "cryptlib.h" #include <openssl/asn1.h> +#ifndef NO_ASN1_OLD + /* ASN1 packing and unpacking functions */ -ASN1_STRING *ASN1_item_pack(void *obj, const ASN1_ITEM *it, ASN1_STRING **oct) +/* 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 == NULL || *oct == NULL) { - if ((octmp = ASN1_STRING_new()) == NULL) { - ASN1err(ASN1_F_ASN1_ITEM_PACK, ERR_R_MALLOC_FAILURE); + if (!oct || !*oct) { + if (!(octmp = ASN1_STRING_new())) { + ASN1err(ASN1_F_ASN1_PACK_STRING, ERR_R_MALLOC_FAILURE); return NULL; } - } else { + if (oct) + *oct = octmp; + } else octmp = *oct; - } - - 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); + if (!(octmp->length = i2d(obj, NULL))) { + ASN1err(ASN1_F_ASN1_PACK_STRING, ASN1_R_ENCODE_ERROR); goto err; } - if (octmp->data == NULL) { - ASN1err(ASN1_F_ASN1_ITEM_PACK, ERR_R_MALLOC_FAILURE); + if (!(p = OPENSSL_malloc(octmp->length))) { + ASN1err(ASN1_F_ASN1_PACK_STRING, ERR_R_MALLOC_FAILURE); goto err; } - - if (oct != NULL && *oct == NULL) - *oct = octmp; - + octmp->data = p; + i2d(obj, &p); return octmp; err: - if (oct == NULL || *oct == NULL) + 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(const ASN1_STRING *oct, const ASN1_ITEM *it) +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)) == NULL) + if (!(ret = ASN1_item_d2i(NULL, &p, oct->length, it))) ASN1err(ASN1_F_ASN1_ITEM_UNPACK, ASN1_R_DECODE_ERROR); return ret; } |