diff options
Diffstat (limited to 'src/lib/libcrypto/asn1/asn_pack.c')
| -rw-r--r-- | src/lib/libcrypto/asn1/asn_pack.c | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/src/lib/libcrypto/asn1/asn_pack.c b/src/lib/libcrypto/asn1/asn_pack.c new file mode 100644 index 0000000000..e8b671b7b5 --- /dev/null +++ b/src/lib/libcrypto/asn1/asn_pack.c | |||
| @@ -0,0 +1,191 @@ | |||
| 1 | /* asn_pack.c */ | ||
| 2 | /* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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 *ASN1_seq_unpack(const unsigned char *buf, int len, | ||
| 70 | d2i_of_void *d2i,void (*free_func)(void *)) | ||
| 71 | { | ||
| 72 | STACK *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 *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 | } | ||
