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| 1 /* asn_pack.c */ | |
| 2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL | |
| 3 * project 1999. | |
| 4 */ | |
| 5 /* ==================================================================== | |
| 6 * Copyright (c) 1999 The OpenSSL Project. All rights reserved. | |
| 7 * | |
| 8 * Redistribution and use in source and binary forms, with or without | |
| 9 * modification, are permitted provided that the following conditions | |
| 10 * are met: | |
| 11 * | |
| 12 * 1. Redistributions of source code must retain the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer. | |
| 14 * | |
| 15 * 2. Redistributions in binary form must reproduce the above copyright | |
| 16 * notice, this list of conditions and the following disclaimer in | |
| 17 * the documentation and/or other materials provided with the | |
| 18 * distribution. | |
| 19 * | |
| 20 * 3. All advertising materials mentioning features or use of this | |
| 21 * software must display the following acknowledgment: | |
| 22 * "This product includes software developed by the OpenSSL Project | |
| 23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
| 24 * | |
| 25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
| 26 * endorse or promote products derived from this software without | |
| 27 * prior written permission. For written permission, please contact | |
| 28 * licensing@OpenSSL.org. | |
| 29 * | |
| 30 * 5. Products derived from this software may not be called "OpenSSL" | |
| 31 * nor may "OpenSSL" appear in their names without prior written | |
| 32 * permission of the OpenSSL Project. | |
| 33 * | |
| 34 * 6. Redistributions of any form whatsoever must retain the following | |
| 35 * acknowledgment: | |
| 36 * "This product includes software developed by the OpenSSL Project | |
| 37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
| 38 * | |
| 39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
| 40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
| 43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| 48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
| 50 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 51 * ==================================================================== | |
| 52 * | |
| 53 * This product includes cryptographic software written by Eric Young | |
| 54 * (eay@cryptsoft.com). This product includes software written by Tim | |
| 55 * Hudson (tjh@cryptsoft.com). | |
| 56 * | |
| 57 */ | |
| 58 | |
| 59 #include <stdio.h> | |
| 60 #include "cryptlib.h" | |
| 61 #include <openssl/asn1.h> | |
| 62 | |
| 63 #ifndef NO_ASN1_OLD | |
| 64 | |
| 65 /* ASN1 packing and unpacking functions */ | |
| 66 | |
| 67 /* Turn an ASN1 encoded SEQUENCE OF into a STACK of structures */ | |
| 68 | |
| 69 STACK_OF(OPENSSL_BLOCK) *ASN1_seq_unpack(const unsigned char *buf, int len, | |
| 70 d2i_of_void *d2i, void (*free_func)(OPENSSL_BLOCK)) | |
| 71 { | |
| 72 STACK_OF(OPENSSL_BLOCK) *sk; | |
| 73 const unsigned char *pbuf; | |
| 74 pbuf = buf; | |
| 75 if (!(sk = d2i_ASN1_SET(NULL, &pbuf, len, d2i, free_func, | |
| 76 V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL))) | |
| 77 ASN1err(ASN1_F_ASN1_SEQ_UNPACK,ASN1_R_DECODE_ERROR); | |
| 78 return sk; | |
| 79 } | |
| 80 | |
| 81 /* Turn a STACK structures into an ASN1 encoded SEQUENCE OF structure in a | |
| 82 * OPENSSL_malloc'ed buffer | |
| 83 */ | |
| 84 | |
| 85 unsigned char *ASN1_seq_pack(STACK_OF(OPENSSL_BLOCK) *safes, i2d_of_void *i2d, | |
| 86 unsigned char **buf, int *len) | |
| 87 { | |
| 88 int safelen; | |
| 89 unsigned char *safe, *p; | |
| 90 if (!(safelen = i2d_ASN1_SET(safes, NULL, i2d, V_ASN1_SEQUENCE, | |
| 91 V_ASN1_UNIVERSAL, IS_SEQUENCE))) { | |
| 92 ASN1err(ASN1_F_ASN1_SEQ_PACK,ASN1_R_ENCODE_ERROR); | |
| 93 return NULL; | |
| 94 } | |
| 95 if (!(safe = OPENSSL_malloc (safelen))) { | |
| 96 ASN1err(ASN1_F_ASN1_SEQ_PACK,ERR_R_MALLOC_FAILURE); | |
| 97 return NULL; | |
| 98 } | |
| 99 p = safe; | |
| 100 i2d_ASN1_SET(safes, &p, i2d, V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL, | |
| 101 IS_SEQUENCE); | |
| 102 if (len) *len = safelen; | |
| 103 if (buf) *buf = safe; | |
| 104 return safe; | |
| 105 } | |
| 106 | |
| 107 /* Extract an ASN1 object from an ASN1_STRING */ | |
| 108 | |
| 109 void *ASN1_unpack_string(ASN1_STRING *oct, d2i_of_void *d2i) | |
| 110 { | |
| 111 const unsigned char *p; | |
| 112 char *ret; | |
| 113 | |
| 114 p = oct->data; | |
| 115 if(!(ret = d2i(NULL, &p, oct->length))) | |
| 116 ASN1err(ASN1_F_ASN1_UNPACK_STRING,ASN1_R_DECODE_ERROR); | |
| 117 return ret; | |
| 118 } | |
| 119 | |
| 120 /* Pack an ASN1 object into an ASN1_STRING */ | |
| 121 | |
| 122 ASN1_STRING *ASN1_pack_string(void *obj, i2d_of_void *i2d, ASN1_STRING **oct) | |
| 123 { | |
| 124 unsigned char *p; | |
| 125 ASN1_STRING *octmp; | |
| 126 | |
| 127 if (!oct || !*oct) { | |
| 128 if (!(octmp = ASN1_STRING_new ())) { | |
| 129 ASN1err(ASN1_F_ASN1_PACK_STRING,ERR_R_MALLOC_FAILURE); | |
| 130 return NULL; | |
| 131 } | |
| 132 if (oct) *oct = octmp; | |
| 133 } else octmp = *oct; | |
| 134 | |
| 135 if (!(octmp->length = i2d(obj, NULL))) { | |
| 136 ASN1err(ASN1_F_ASN1_PACK_STRING,ASN1_R_ENCODE_ERROR); | |
| 137 return NULL; | |
| 138 } | |
| 139 if (!(p = OPENSSL_malloc (octmp->length))) { | |
| 140 ASN1err(ASN1_F_ASN1_PACK_STRING,ERR_R_MALLOC_FAILURE); | |
| 141 return NULL; | |
| 142 } | |
| 143 octmp->data = p; | |
| 144 i2d (obj, &p); | |
| 145 return octmp; | |
| 146 } | |
| 147 | |
| 148 #endif | |
| 149 | |
| 150 /* ASN1_ITEM versions of the above */ | |
| 151 | |
| 152 ASN1_STRING *ASN1_item_pack(void *obj, const ASN1_ITEM *it, ASN1_STRING **oct) | |
| 153 { | |
| 154 ASN1_STRING *octmp; | |
| 155 | |
| 156 if (!oct || !*oct) { | |
| 157 if (!(octmp = ASN1_STRING_new ())) { | |
| 158 ASN1err(ASN1_F_ASN1_ITEM_PACK,ERR_R_MALLOC_FAILURE); | |
| 159 return NULL; | |
| 160 } | |
| 161 if (oct) *oct = octmp; | |
| 162 } else octmp = *oct; | |
| 163 | |
| 164 if(octmp->data) { | |
| 165 OPENSSL_free(octmp->data); | |
| 166 octmp->data = NULL; | |
| 167 } | |
| 168 | |
| 169 if (!(octmp->length = ASN1_item_i2d(obj, &octmp->data, it))) { | |
| 170 ASN1err(ASN1_F_ASN1_ITEM_PACK,ASN1_R_ENCODE_ERROR); | |
| 171 return NULL; | |
| 172 } | |
| 173 if (!octmp->data) { | |
| 174 ASN1err(ASN1_F_ASN1_ITEM_PACK,ERR_R_MALLOC_FAILURE); | |
| 175 return NULL; | |
| 176 } | |
| 177 return octmp; | |
| 178 } | |
| 179 | |
| 180 /* Extract an ASN1 object from an ASN1_STRING */ | |
| 181 | |
| 182 void *ASN1_item_unpack(ASN1_STRING *oct, const ASN1_ITEM *it) | |
| 183 { | |
| 184 const unsigned char *p; | |
| 185 void *ret; | |
| 186 | |
| 187 p = oct->data; | |
| 188 if(!(ret = ASN1_item_d2i(NULL, &p, oct->length, it))) | |
| 189 ASN1err(ASN1_F_ASN1_ITEM_UNPACK,ASN1_R_DECODE_ERROR); | |
| 190 return ret; | |
| 191 } | |
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Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master