X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fasn1%2Fasn_pack.c;h=63bc30675655fc69ff32212a8443234a51e400d9;hp=e62eed2afad626debfb50494a68e85b37e5fa9f0;hb=35da893f86a40d3711ed785bd8777c18238aee45;hpb=4e1209ebf8603d7f51a37d1645dfc0c09bac8686 diff --git a/crypto/asn1/asn_pack.c b/crypto/asn1/asn_pack.c index e62eed2afa..63bc306756 100644 --- a/crypto/asn1/asn_pack.c +++ b/crypto/asn1/asn_pack.c @@ -1,191 +1,62 @@ -/* asn_pack.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). +/* + * 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 -#include "cryptlib.h" +#include "internal/cryptlib.h" #include -#ifndef NO_ASN1_OLD - /* ASN1 packing and unpacking functions */ -/* Turn an ASN1 encoded SEQUENCE OF into a STACK of structures */ - -STACK *ASN1_seq_unpack(unsigned char *buf, int len, char *(*d2i)(), - void (*free_func)(void *)) +ASN1_STRING *ASN1_item_pack(void *obj, const ASN1_ITEM *it, ASN1_STRING **oct) { - STACK *sk; - 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 *safes, int (*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, char *(*d2i)()) -{ - 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, int (*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); - return NULL; - } - if (!(p = OPENSSL_malloc (octmp->length))) { - ASN1err(ASN1_F_ASN1_PACK_STRING,ERR_R_MALLOC_FAILURE); - return NULL; - } - octmp->data = p; - i2d (obj, &p); - return octmp; -} - -#endif - -/* ASN1_ITEM versions of the above */ - -ASN1_STRING *ASN1_pack_item(void *obj, const ASN1_ITEM *it, ASN1_STRING **oct) -{ - 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->data) { - OPENSSL_free(octmp->data); - octmp->data = NULL; - } - - if (!(octmp->length = ASN1_item_i2d(obj, &octmp->data, it))) { - ASN1err(ASN1_F_ASN1_PACK_STRING,ASN1_R_ENCODE_ERROR); - return NULL; - } - if (!octmp->data) { - ASN1err(ASN1_F_ASN1_PACK_STRING,ERR_R_MALLOC_FAILURE); - return NULL; - } - return octmp; + ASN1_STRING *octmp; + + if (oct == NULL || *oct == NULL) { + if ((octmp = ASN1_STRING_new()) == NULL) { + ASN1err(ASN1_F_ASN1_ITEM_PACK, ERR_R_MALLOC_FAILURE); + return NULL; + } + } 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); + goto err; + } + if (octmp->data == NULL) { + ASN1err(ASN1_F_ASN1_ITEM_PACK, ERR_R_MALLOC_FAILURE); + 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_unpack_item(ASN1_STRING *oct, const ASN1_ITEM *it) +void *ASN1_item_unpack(const ASN1_STRING *oct, const ASN1_ITEM *it) { - unsigned char *p; - void *ret; + const unsigned char *p; + void *ret; - p = oct->data; - if(!(ret = ASN1_item_d2i(NULL, &p, oct->length, it))) - ASN1err(ASN1_F_ASN1_UNPACK_STRING,ASN1_R_DECODE_ERROR); - return ret; + p = oct->data; + if ((ret = ASN1_item_d2i(NULL, &p, oct->length, it)) == NULL) + ASN1err(ASN1_F_ASN1_ITEM_UNPACK, ASN1_R_DECODE_ERROR); + return ret; }