[4446] | 1 | //hash.c: |
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| 2 | |
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| 3 | /* |
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[4708] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010-2011 |
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[4446] | 5 | * |
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| 6 | * This file is part of libroar a part of RoarAudio, |
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| 7 | * a cross-platform sound system for both, home and professional use. |
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| 8 | * See README for details. |
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| 9 | * |
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| 10 | * This file is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU General Public License version 3 |
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| 12 | * as published by the Free Software Foundation. |
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| 13 | * |
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| 14 | * libroar is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | * GNU General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with this software; see the file COPYING. If not, write to |
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| 21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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| 23 | * |
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| 24 | * NOTE for everyone want's to change something and send patches: |
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| 25 | * read README and HACKING! There a addition information on |
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| 26 | * the license of this document you need to read before you send |
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| 27 | * any patches. |
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| 28 | * |
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| 29 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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| 30 | * or libpulse*: |
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| 31 | * The libs libroaresd, libroararts and libroarpulse link this lib |
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| 32 | * and are therefore GPL. Because of this it may be illigal to use |
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| 33 | * them with any software that uses libesd, libartsc or libpulse*. |
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| 34 | */ |
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| 35 | |
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| 36 | #include "libroar.h" |
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| 37 | |
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[4451] | 38 | #ifdef ROAR_HAVE_LIBGCRYPT |
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| 39 | #include <gcrypt.h> |
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| 40 | #endif |
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| 41 | |
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[4670] | 42 | struct roar_hash_state { |
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| 43 | struct roar_hash_cmds * cmds; |
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| 44 | void * state; |
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| 45 | }; |
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| 46 | |
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[4450] | 47 | static const struct hashes { |
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[4795] | 48 | const uint_least32_t id; |
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| 49 | const char * name; |
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| 50 | const ssize_t dlen; |
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[4450] | 51 | } _libroar_hashes[] = { |
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| 52 | /* |
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[4453] | 53 | grep '^ +HT_' doc/new-cmds | sed 's/ *#(.*)$//; s/^ +HT_//; s/ *=.*$//' | while read n; do printf " {ROAR_HT_%-12s \"%-12s -1 },\n" $n, $n\",; done |
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[4450] | 54 | */ |
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[4453] | 55 | {ROAR_HT_NONE, "NONE", -1 }, |
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| 56 | {ROAR_HT_MD5, "MD5", 16 }, |
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| 57 | {ROAR_HT_SHA1, "SHA1", 20 }, |
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| 58 | {ROAR_HT_RIPEMD160, "RIPEMD160", 20 }, |
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| 59 | {ROAR_HT_MD2, "MD2", -1 }, |
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| 60 | {ROAR_HT_TIGER, "TIGER", 24 }, |
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| 61 | {ROAR_HT_HAVAL, "HAVAL", -1 }, |
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| 62 | {ROAR_HT_SHA256, "SHA256", 32 }, |
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| 63 | {ROAR_HT_SHA384, "SHA384", 48 }, |
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| 64 | {ROAR_HT_SHA512, "SHA512", 64 }, |
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| 65 | {ROAR_HT_SHA224, "SHA224", 28 }, |
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| 66 | {ROAR_HT_MD4, "MD4", 16 }, |
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| 67 | {ROAR_HT_CRC32, "CRC32", 4 }, |
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| 68 | {ROAR_HT_RFC1510, "RFC1510", 4 }, |
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| 69 | {ROAR_HT_RFC2440, "RFC2440", 3 }, |
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| 70 | {ROAR_HT_WHIRLPOOL, "WHIRLPOOL", 64 }, |
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| 71 | {ROAR_HT_UUID, "UUID", 16 }, |
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| 72 | {ROAR_HT_GTN8, "GTN8", 1 }, |
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| 73 | {ROAR_HT_GTN16, "GTN16", 2 }, |
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| 74 | {ROAR_HT_GTN32, "GTN32", 4 }, |
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| 75 | {ROAR_HT_GTN64, "GTN64", 8 }, |
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| 76 | {ROAR_HT_CLIENTID, "CLIENTID", -1 }, |
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| 77 | {ROAR_HT_STREAMID, "STREAMID", -1 }, |
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| 78 | {ROAR_HT_SOURCEID, "SOURCEID", -1 }, |
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| 79 | {ROAR_HT_SAMPLEID, "SAMPLEID", -1 }, |
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| 80 | {ROAR_HT_MIXERID, "MIXERID", -1 }, |
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| 81 | {ROAR_HT_BRIDGEID, "BRIDGEID", -1 }, |
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| 82 | {ROAR_HT_LISTENID, "LISTENID", -1 }, |
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| 83 | {ROAR_HT_ACTIONID, "ACTIONID", -1 }, |
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| 84 | {ROAR_HT_MSGQUEUEID, "MSGQUEUEID", -1 }, |
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| 85 | {ROAR_HT_MSGBUSID, "MSGBUSID", -1 }, |
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| 86 | {ROAR_HT_GTIN8, "GTIN8", 4 }, |
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| 87 | {ROAR_HT_GTIN13, "GTIN13", 8 }, |
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| 88 | {ROAR_HT_ISBN10, "ISBN10", 8 }, |
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| 89 | {ROAR_HT_ISBN13, "ISBN13", 8 }, |
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[4795] | 90 | {ROAR_HT_ADLER32, "ADLER32", 4 }, |
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[4450] | 91 | {-1, NULL} |
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| 92 | }; |
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| 93 | |
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[4670] | 94 | static struct roar_hash_cmds _libroar_hash_cmds[] = { |
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| 95 | {ROAR_HT_TIGER, sizeof(struct roar_hash_tiger), 512, |
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| 96 | (int (*)(void *))roar_hash_tiger_init, (int (*)(void *))roar_hash_tiger_uninit, |
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| 97 | (int (*)(void *, void *, size_t *))roar_hash_tiger_get_digest, |
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| 98 | (int (*)(void *, const void *))roar_hash_tiger_proc_block, |
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| 99 | (int (*)(void *, const void *, size_t))roar_hash_tiger_proc |
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| 100 | }, |
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[4671] | 101 | {ROAR_HT_RFC2440, sizeof(uint32_t), -1, |
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| 102 | roar_hash_crc24_init, NULL, |
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| 103 | roar_hash_crc24_digest, NULL, roar_hash_crc24_proc |
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| 104 | }, |
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[4795] | 105 | {ROAR_HT_ADLER32, sizeof(uint32_t), -1, |
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| 106 | roar_hash_adler32_init, NULL, |
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| 107 | roar_hash_adler32_digest, NULL, roar_hash_adler32_proc |
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| 108 | }, |
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[4670] | 109 | {-1, -1, -1, NULL, NULL, NULL, NULL, NULL} |
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| 110 | }; |
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| 111 | |
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| 112 | static struct roar_hash_cmds * roar_ht2cmds(const int ht) { |
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| 113 | size_t i; |
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| 114 | |
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| 115 | for(i = 0; _libroar_hash_cmds[i].algo != -1; i++) |
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| 116 | if ( _libroar_hash_cmds[i].algo == ht ) |
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| 117 | return &(_libroar_hash_cmds[i]); |
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| 118 | |
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[5188] | 119 | roar_err_set(ROAR_ERROR_NOENT); |
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[4670] | 120 | return NULL; |
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| 121 | } |
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| 122 | |
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[4451] | 123 | static inline int roar_ht2gcrypt_tested (const int ht) { |
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[4549] | 124 | #ifdef ROAR_HAVE_LIBGCRYPT |
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[4451] | 125 | const char * name; |
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| 126 | |
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| 127 | if ( ht > 512 ) |
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| 128 | return -1; |
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| 129 | |
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| 130 | // test the algo: |
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| 131 | name = gcry_md_algo_name(ht); |
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| 132 | |
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| 133 | if ( name == NULL ) |
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| 134 | return -1; |
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| 135 | |
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| 136 | if ( *name == 0 ) |
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| 137 | return -1; |
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| 138 | |
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| 139 | return ht; |
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[4549] | 140 | #else |
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| 141 | return -1; |
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| 142 | #endif |
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[4451] | 143 | } |
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| 144 | |
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[4450] | 145 | const char * roar_ht2str (const int ht) { |
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| 146 | int i; |
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| 147 | |
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[5270] | 148 | for (i = 0; _libroar_hashes[i].id != (uint_least32_t)-1; i++) |
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[4450] | 149 | if ( _libroar_hashes[i].id == ht ) |
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| 150 | return _libroar_hashes[i].name; |
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| 151 | |
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[5188] | 152 | roar_err_set(ROAR_ERROR_NOENT); |
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[4450] | 153 | return NULL; |
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| 154 | } |
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| 155 | |
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| 156 | int roar_str2ht (const char * ht) { |
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| 157 | int i; |
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| 158 | |
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[5270] | 159 | for (i = 0; _libroar_hashes[i].id != (uint_least32_t)-1; i++) |
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[4450] | 160 | if ( !strcasecmp(_libroar_hashes[i].name, ht) ) |
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| 161 | return _libroar_hashes[i].id; |
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| 162 | |
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[5188] | 163 | roar_err_set(ROAR_ERROR_NOENT); |
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[4450] | 164 | return -1; |
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| 165 | } |
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| 166 | |
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[4453] | 167 | ssize_t roar_ht_digestlen (const int ht) { |
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| 168 | int i; |
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| 169 | |
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[5270] | 170 | for (i = 0; _libroar_hashes[i].id != (uint_least32_t)-1; i++) |
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[4453] | 171 | if ( _libroar_hashes[i].id == ht ) |
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| 172 | return _libroar_hashes[i].dlen; |
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| 173 | |
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[5188] | 174 | roar_err_set(ROAR_ERROR_NOENT); |
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[4453] | 175 | return -1; |
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| 176 | } |
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| 177 | |
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[4877] | 178 | static void _bin2hex(char * out, char * in, size_t inlen, int uppercase) { |
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| 179 | const char * tab = uppercase ? "0123456789ABCDEF" : "0123456789abcdef"; |
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| 180 | unsigned char c; |
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| 181 | int nib0, nib1; |
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| 182 | |
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| 183 | for (; inlen; inlen--) { |
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| 184 | c = *(in++); |
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| 185 | nib0 = (c & 0x0F) >> 0; |
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| 186 | nib1 = (c & 0xF0) >> 4; |
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| 187 | // printf("inlen=%zu, c=%u, nibs={%i, %i}\n", inlen, (unsigned)c, nib1, nib0); |
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| 188 | *(out++) = tab[nib1]; |
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| 189 | *(out++) = tab[nib0]; |
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| 190 | } |
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| 191 | *out = 0; |
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| 192 | } |
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| 193 | |
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[4878] | 194 | ssize_t roar_hash_digest2str(char * out, size_t outlen, void * digest, size_t digestlen, int ht) { |
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[4877] | 195 | ssize_t slen = roar_ht_digestlen(ht); |
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| 196 | union { |
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| 197 | long long int llsi; |
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| 198 | } tmp; |
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| 199 | enum { |
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| 200 | HEX, |
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| 201 | TIGER, |
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| 202 | // BASE64, |
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| 203 | UUID, |
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| 204 | INT, |
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| 205 | GTIN |
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| 206 | } type = HEX; |
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| 207 | |
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| 208 | if ( out == NULL || digest == NULL ) { |
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| 209 | roar_err_set(ROAR_ERROR_FAULT); |
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| 210 | return -1; |
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| 211 | } |
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| 212 | |
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| 213 | if ( !(slen == -1 || digestlen == slen) ) { |
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| 214 | roar_err_set(ROAR_ERROR_INVAL); |
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| 215 | return -1; |
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| 216 | } |
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| 217 | |
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| 218 | switch (ht) { |
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| 219 | case ROAR_HT_TIGER: type = TIGER; break; |
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| 220 | case ROAR_HT_UUID: type = UUID; break; |
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| 221 | case ROAR_HT_CLIENTID: |
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| 222 | case ROAR_HT_STREAMID: |
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| 223 | case ROAR_HT_SOURCEID: |
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| 224 | case ROAR_HT_SAMPLEID: |
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| 225 | case ROAR_HT_MIXERID: |
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| 226 | case ROAR_HT_BRIDGEID: |
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| 227 | case ROAR_HT_LISTENID: |
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| 228 | case ROAR_HT_ACTIONID: |
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| 229 | case ROAR_HT_MSGQUEUEID: |
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| 230 | case ROAR_HT_MSGBUSID: |
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| 231 | type = INT; |
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| 232 | break; |
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| 233 | case ROAR_HT_GTIN8: |
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| 234 | case ROAR_HT_GTIN13: |
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| 235 | case ROAR_HT_ISBN10: |
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| 236 | type = GTIN; |
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| 237 | break; |
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| 238 | } |
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| 239 | |
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| 240 | switch (type) { |
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| 241 | case HEX: |
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| 242 | if ( outlen < (digestlen*2 + 1) ) { |
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| 243 | roar_err_set(ROAR_ERROR_FAULT); |
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| 244 | return -1; |
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| 245 | } |
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| 246 | _bin2hex(out, digest, digestlen, 0); |
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| 247 | break; |
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| 248 | case UUID: |
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| 249 | if ( outlen < 37 || digestlen != 16 ) { |
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| 250 | roar_err_set(ROAR_ERROR_FAULT); |
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| 251 | return -1; |
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| 252 | } |
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| 253 | _bin2hex(out+ 0, digest+ 0, 4, 0); |
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| 254 | out[ 8] = '-'; |
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| 255 | _bin2hex(out+ 9, digest+ 4, 2, 0); |
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| 256 | out[13] = '-'; |
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| 257 | _bin2hex(out+14, digest+ 6, 2, 0); |
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| 258 | out[18] = '-'; |
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| 259 | _bin2hex(out+19, digest+ 8, 2, 0); |
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| 260 | out[23] = '-'; |
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| 261 | _bin2hex(out+24, digest+10, 6, 0); |
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| 262 | // printf("%s\n", out+24); |
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| 263 | break; |
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| 264 | case TIGER: |
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| 265 | if ( outlen < 51 || digestlen != 24 ) { |
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| 266 | roar_err_set(ROAR_ERROR_FAULT); |
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| 267 | return -1; |
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| 268 | } |
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| 269 | _bin2hex(out+ 0, digest+ 0, 8, 1); |
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| 270 | out[16] = ' '; |
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| 271 | _bin2hex(out+17, digest+ 8, 8, 1); |
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| 272 | out[33] = ' '; |
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| 273 | _bin2hex(out+34, digest+16, 8, 1); |
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| 274 | break; |
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| 275 | case INT: |
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| 276 | switch (digestlen) { |
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| 277 | case 1: |
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| 278 | tmp.llsi = *(char*)digest; |
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| 279 | break; |
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| 280 | case 2: |
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| 281 | tmp.llsi = ROAR_NET2HOST16(*(int16_t*)digest); |
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| 282 | break; |
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| 283 | case 4: |
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| 284 | tmp.llsi = ROAR_NET2HOST32(*(int32_t*)digest); |
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| 285 | break; |
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| 286 | default: |
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| 287 | roar_err_set(ROAR_ERROR_NOSYS); |
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| 288 | return -1; |
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| 289 | break; |
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| 290 | } |
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| 291 | snprintf(out, outlen-1, "%lli", tmp.llsi); |
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| 292 | break; |
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| 293 | default: |
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| 294 | roar_err_set(ROAR_ERROR_NOSYS); |
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| 295 | return -1; |
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| 296 | } |
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| 297 | |
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| 298 | out[outlen-1] = 0; |
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[5188] | 299 | return roar_mm_strlen(out); |
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[4877] | 300 | } |
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| 301 | |
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[4453] | 302 | int roar_ht_is_supported(const int ht) { |
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[4454] | 303 | roar_crypto_init(); |
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| 304 | |
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[4670] | 305 | if ( roar_ht2cmds(ht) != NULL ) |
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| 306 | return 1; |
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| 307 | |
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[4453] | 308 | #ifdef ROAR_HAVE_LIBGCRYPT |
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| 309 | if ( roar_ht2gcrypt_tested(ht) == -1 ) |
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| 310 | return 0; |
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| 311 | |
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| 312 | return 1; |
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| 313 | #else |
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| 314 | return 0; |
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| 315 | #endif |
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| 316 | } |
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| 317 | |
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[4670] | 318 | struct roar_hash_state * roar_hash_new(int algo) { |
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| 319 | struct roar_hash_cmds * cmds = roar_ht2cmds(algo); |
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| 320 | struct roar_hash_state * self; |
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| 321 | |
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| 322 | if ( cmds == NULL ) |
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| 323 | return NULL; |
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| 324 | |
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| 325 | self = roar_mm_malloc(sizeof(struct roar_hash_state)); |
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| 326 | |
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| 327 | if ( self == NULL ) |
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| 328 | return NULL; |
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| 329 | |
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| 330 | memset(self, 0, sizeof(struct roar_hash_state)); |
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| 331 | |
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| 332 | self->cmds = cmds; |
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| 333 | |
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| 334 | self->state = roar_mm_malloc(cmds->statelen); |
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| 335 | |
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| 336 | if ( self->state == NULL ) { |
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| 337 | roar_mm_free(self); |
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| 338 | return NULL; |
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| 339 | } |
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| 340 | |
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| 341 | memset(self->state, 0, cmds->statelen); |
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| 342 | |
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| 343 | if ( cmds->init != NULL ) { |
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| 344 | if ( cmds->init(self->state) == -1 ) { |
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| 345 | roar_mm_free(self->state); |
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| 346 | roar_mm_free(self); |
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| 347 | return NULL; |
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| 348 | } |
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| 349 | } |
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| 350 | |
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| 351 | return self; |
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| 352 | } |
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| 353 | |
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| 354 | int roar_hash_free(struct roar_hash_state * state) { |
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| 355 | int ret = 0; |
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| 356 | |
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[5188] | 357 | if ( state == NULL ) { |
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| 358 | roar_err_set(ROAR_ERROR_FAULT); |
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[4670] | 359 | return -1; |
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[5188] | 360 | } |
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[4670] | 361 | |
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| 362 | if ( state->cmds->uninit != NULL ) |
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| 363 | ret = state->cmds->uninit(state->state); |
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| 364 | |
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| 365 | roar_mm_free(state->state); |
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| 366 | roar_mm_free(state); |
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| 367 | |
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| 368 | return ret; |
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| 369 | } |
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| 370 | |
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| 371 | int roar_hash_digest(struct roar_hash_state * state, void * digest, size_t * len) { |
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[5188] | 372 | if ( state == NULL ) { |
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| 373 | roar_err_set(ROAR_ERROR_FAULT); |
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[4670] | 374 | return -1; |
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[5188] | 375 | } |
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[4670] | 376 | |
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[5188] | 377 | if ( state->cmds->digest == NULL ) { |
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| 378 | roar_err_set(ROAR_ERROR_NOSYS); |
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[4670] | 379 | return -1; |
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[5188] | 380 | } |
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[4670] | 381 | |
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| 382 | return state->cmds->digest(state->state, digest, len); |
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| 383 | } |
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| 384 | |
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| 385 | int roar_hash_proc(struct roar_hash_state * state, const void * data, size_t len) { |
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[5188] | 386 | if ( state == NULL ) { |
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| 387 | roar_err_set(ROAR_ERROR_FAULT); |
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[4670] | 388 | return -1; |
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[5188] | 389 | } |
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[4670] | 390 | |
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[5188] | 391 | if ( state->cmds->proc == NULL ) { |
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| 392 | roar_err_set(ROAR_ERROR_NOSYS); |
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[4670] | 393 | return -1; |
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[5188] | 394 | } |
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[4670] | 395 | |
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| 396 | return state->cmds->proc(state->state, data, len); |
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| 397 | } |
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| 398 | |
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[4450] | 399 | int roar_hash_buffer(void * digest, const void * data, size_t datalen, int algo) { |
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[4454] | 400 | roar_crypto_init(); |
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| 401 | |
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[4450] | 402 | return roar_hash_salted_buffer(digest, data, datalen, algo, NULL, 0); |
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| 403 | } |
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| 404 | |
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[4451] | 405 | #ifdef ROAR_HAVE_LIBGCRYPT |
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| 406 | static inline int roar_hash_salted_buffer_gcrypt(void * digest, const void * data, size_t datalen, int algo, const void * salt, size_t saltlen) { |
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| 407 | gcry_md_hd_t hdl; |
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| 408 | |
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[4454] | 409 | roar_crypto_init(); |
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| 410 | |
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[4451] | 411 | algo = roar_ht2gcrypt_tested(algo); |
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| 412 | if ( algo == -1 ) |
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| 413 | return -1; |
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| 414 | |
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| 415 | |
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| 416 | if ( salt == NULL ) { |
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| 417 | // optimized for unsalted: |
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| 418 | gcry_md_hash_buffer(algo, digest, data, datalen); |
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| 419 | return 0; |
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| 420 | } else { |
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| 421 | if ( gcry_md_open(&hdl, algo, 0) != 0 ) |
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| 422 | return -1; |
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| 423 | |
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| 424 | gcry_md_write(hdl, data, datalen); |
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| 425 | gcry_md_write(hdl, salt, saltlen); |
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| 426 | |
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| 427 | memcpy(digest, gcry_md_read(hdl, algo), gcry_md_get_algo_dlen(algo)); |
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| 428 | |
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| 429 | gcry_md_close(hdl); |
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| 430 | } |
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| 431 | |
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| 432 | return 0; |
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| 433 | } |
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| 434 | #endif |
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| 435 | |
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[4450] | 436 | int roar_hash_salted_buffer(void * digest, const void * data, size_t datalen, int algo, const void * salt, size_t saltlen) { |
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[4670] | 437 | struct roar_hash_state * state; |
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| 438 | size_t len; |
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[4671] | 439 | int ret = 0; |
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| 440 | |
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| 441 | ROAR_DBG("roar_hash_salted_buffer(digest=%p, data=%p, datalen=%llu, algo=%i, salt=%p, saltlen=%llu) = ?", digest, data, (unsigned long long int)datalen, algo, salt, (unsigned long long int)saltlen); |
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[4670] | 442 | |
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[5188] | 443 | if ( digest == NULL || data == NULL ) { |
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| 444 | roar_err_set(ROAR_ERROR_FAULT); |
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[4451] | 445 | return -1; |
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[5188] | 446 | } |
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[4451] | 447 | |
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[4670] | 448 | len = roar_ht_digestlen(algo); |
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| 449 | if ( len == -1 ) |
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| 450 | return -1; |
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| 451 | |
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| 452 | if ( (state = roar_hash_new(algo)) != NULL ) { |
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[4671] | 453 | ROAR_DBG("roar_hash_salted_buffer(*): ret=%i", ret); |
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| 454 | |
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[4670] | 455 | if ( roar_hash_proc(state, data, datalen) == -1 ) |
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| 456 | ret = -1; |
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| 457 | |
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[4671] | 458 | ROAR_DBG("roar_hash_salted_buffer(*): ret=%i", ret); |
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| 459 | |
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[4670] | 460 | if ( saltlen != 0 ) |
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| 461 | if ( roar_hash_proc(state, salt, saltlen) == -1 ) |
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| 462 | ret = -1; |
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| 463 | |
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[4671] | 464 | ROAR_DBG("roar_hash_salted_buffer(*): ret=%i", ret); |
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| 465 | |
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[4670] | 466 | if ( roar_hash_digest(state, digest, &len) == -1 ) |
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| 467 | ret = -1; |
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| 468 | |
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[4671] | 469 | ROAR_DBG("roar_hash_salted_buffer(*): ret=%i", ret); |
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| 470 | |
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[4670] | 471 | if ( roar_hash_free(state) == -1 ) |
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| 472 | ret = -1; |
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| 473 | |
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[4671] | 474 | ROAR_DBG("roar_hash_salted_buffer(*): ret=%i", ret); |
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| 475 | |
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[4670] | 476 | return ret; |
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| 477 | } |
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| 478 | |
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[4671] | 479 | ROAR_DBG("roar_hash_salted_buffer(*): state=%p", state); |
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| 480 | |
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[4451] | 481 | #ifdef ROAR_HAVE_LIBGCRYPT |
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| 482 | return roar_hash_salted_buffer_gcrypt(digest, data, datalen, algo, salt, saltlen); |
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| 483 | #else |
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[5188] | 484 | roar_err_set(ROAR_ERROR_NOTSUP); |
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[4450] | 485 | return -1; |
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[4451] | 486 | #endif |
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[4450] | 487 | } |
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| 488 | |
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[4446] | 489 | //ll |
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