[5505] | 1 | //uuid.c: |
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| 2 | |
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| 3 | /* |
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[5961] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2012-2014 |
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[5505] | 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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[5589] | 38 | int roar_uuid_eq(const roar_uuid_t a, const roar_uuid_t b) { |
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[5505] | 39 | if ( a == NULL || b == NULL ) { |
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| 40 | roar_err_set(ROAR_ERROR_FAULT); |
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| 41 | return -1; |
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| 42 | } |
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| 43 | |
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[5589] | 44 | if ( memcmp(a, b, sizeof(roar_uuid_t)) == 0 ) |
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[5505] | 45 | return 1; |
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| 46 | |
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| 47 | return 0; |
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| 48 | } |
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| 49 | |
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[5589] | 50 | int roar_uuid2str(char * str, const roar_uuid_t uuid, ssize_t len) { |
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[5505] | 51 | if ( str == NULL || uuid == NULL ) { |
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| 52 | roar_err_set(ROAR_ERROR_FAULT); |
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| 53 | return -1; |
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| 54 | } |
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| 55 | |
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| 56 | if ( len < 1 ) { |
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| 57 | roar_err_set(ROAR_ERROR_NOSPC); |
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| 58 | return -1; |
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| 59 | } |
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| 60 | |
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| 61 | snprintf(str, len, "%.2x%.2x%.2x%.2x-%.2x%.2x-%.2x%.2x-%.2x%.2x-%.2x%.2x%.2x%.2x%.2x%.2x", |
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| 62 | uuid[0], uuid[1], uuid[2], uuid[3], uuid[4], uuid[5], uuid[6], uuid[7], |
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| 63 | uuid[8], uuid[9], uuid[10], uuid[11], uuid[12], uuid[13], uuid[14], uuid[15] |
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| 64 | ); |
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| 65 | |
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| 66 | return 0; |
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| 67 | } |
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| 68 | |
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| 69 | int roar_str2uuid(roar_uuid_t uuid, const char * str) { |
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| 70 | unsigned int inbuf[16]; |
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| 71 | int i; |
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| 72 | |
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| 73 | if ( sscanf(str, "%2x%2x%2x%2x-%2x%2x-%2x%2x-%2x%2x-%2x%2x%2x%2x%2x%2x", |
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| 74 | &(inbuf[0]), &(inbuf[1]), &(inbuf[2]), &(inbuf[3]), &(inbuf[4]), &(inbuf[5]), |
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| 75 | &(inbuf[6]), &(inbuf[7]), &(inbuf[8]), &(inbuf[9]), &(inbuf[10]), &(inbuf[11]), |
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| 76 | &(inbuf[12]), &(inbuf[13]), &(inbuf[14]), &(inbuf[15])) != 16 ) { |
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| 77 | roar_err_set(ROAR_ERROR_ILLSEQ); |
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| 78 | return -1; |
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| 79 | } |
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| 80 | |
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| 81 | for (i = 0; i < 16; i++) |
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| 82 | uuid[i] = inbuf[i]; |
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| 83 | |
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| 84 | return 0; |
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| 85 | } |
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[5665] | 86 | |
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[5667] | 87 | const roar_uuid_t * roar_uuid_get_ns_real(const char * ns) { |
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[5683] | 88 | static const roar_uuid_t |
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[5732] | 89 | nulluuid = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, |
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| 90 | dns = {0x6b, 0xa7, 0xb8, 0x10, 0x9d, 0xad, 0x11, 0xd1, 0x80, 0xb4, 0x00, 0xc0, 0x4f, 0xd4, 0x30, 0xc8}, |
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| 91 | url = {0x6b, 0xa7, 0xb8, 0x11, 0x9d, 0xad, 0x11, 0xd1, 0x80, 0xb4, 0x00, 0xc0, 0x4f, 0xd4, 0x30, 0xc8}, |
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| 92 | oid = {0x6b, 0xa7, 0xb8, 0x12, 0x9d, 0xad, 0x11, 0xd1, 0x80, 0xb4, 0x00, 0xc0, 0x4f, 0xd4, 0x30, 0xc8}, |
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| 93 | x500 = {0x6b, 0xa7, 0xb8, 0x14, 0x9d, 0xad, 0x11, 0xd1, 0x80, 0xb4, 0x00, 0xc0, 0x4f, 0xd4, 0x30, 0xc8}; |
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[5683] | 94 | static const void * null_ptr = NULL; |
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[5667] | 95 | |
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| 96 | if ( ns == NULL ) { |
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| 97 | roar_err_set(ROAR_ERROR_FAULT); |
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[5683] | 98 | return (const roar_uuid_t *)&null_ptr; |
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[5667] | 99 | } |
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| 100 | |
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[5732] | 101 | if ( !strcasecmp(ns, "null") ) { |
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| 102 | return &nulluuid; |
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| 103 | } else if ( !strcasecmp(ns, "dns") ) { |
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[5667] | 104 | return &dns; |
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| 105 | } else if ( !strcasecmp(ns, "url") ) { |
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| 106 | return &url; |
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| 107 | } else if ( !strcasecmp(ns, "iso oid") || !strcasecmp(ns, "oid") ) { |
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| 108 | return &oid; |
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| 109 | } else if ( !strcasecmp(ns, "X.500 DN") || !strcasecmp(ns, "X500 DN") || !strcasecmp(ns, "x500") ) { |
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| 110 | return &x500; |
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| 111 | } |
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| 112 | |
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| 113 | roar_err_set(ROAR_ERROR_NOENT); |
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[5683] | 114 | return (const roar_uuid_t *)&null_ptr; |
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[5667] | 115 | } |
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| 116 | |
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[5665] | 117 | int roar_uuid_gen(roar_uuid_t uuid, enum roar_uuid_type type, const roar_uuid_t ns, const void * argp, ssize_t arglen) { |
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| 118 | unsigned char digest[20]; |
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| 119 | |
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[5505] | 120 | if ( uuid == NULL ) { |
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| 121 | roar_err_set(ROAR_ERROR_FAULT); |
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| 122 | return -1; |
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| 123 | } |
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| 124 | |
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| 125 | switch (type) { |
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| 126 | case ROAR_UUID_TYPE_NULL: |
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| 127 | memset(uuid, 0, sizeof(roar_uuid_t)); |
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| 128 | return 0; |
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| 129 | break; |
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| 130 | case ROAR_UUID_TYPE_RANDOM: |
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[5666] | 131 | roar_random_gen_nonce(uuid, sizeof(roar_uuid_t)); |
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| 132 | uuid[6] = (uuid[8] & 0x0F) | 0x40; // Version |
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| 133 | uuid[8] = (uuid[8] & 0x3F) | 0x80; // Variant |
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[5505] | 134 | return 0; |
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| 135 | break; |
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| 136 | case ROAR_UUID_TYPE_MD5: |
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| 137 | case ROAR_UUID_TYPE_SHA1: |
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[5665] | 138 | if ( ns == NULL || argp == NULL ) { |
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| 139 | roar_err_set(ROAR_ERROR_FAULT); |
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| 140 | return -1; |
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| 141 | } |
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| 142 | |
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| 143 | if ( arglen < 1 ) { |
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| 144 | roar_err_set(ROAR_ERROR_INVAL); |
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| 145 | return -1; |
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| 146 | } |
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| 147 | |
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| 148 | if ( roar_hash_salted_buffer(digest, ns, sizeof(roar_uuid_t), |
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| 149 | type == ROAR_UUID_TYPE_MD5 ? ROAR_HT_MD5 : ROAR_HT_SHA1, |
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| 150 | argp, arglen) == -1 ) |
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| 151 | return -1; |
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| 152 | |
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| 153 | memcpy(uuid, digest, sizeof(roar_uuid_t)); |
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| 154 | uuid[6] = (uuid[8] & 0x0F) | (type << 4); // Version |
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| 155 | uuid[8] = (uuid[8] & 0x3F) | 0x80; // Variant |
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| 156 | |
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| 157 | return 0; |
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| 158 | break; |
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| 159 | case ROAR_UUID_TYPE_DCE_SECURITY: |
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| 160 | case ROAR_UUID_TYPE_TIME: |
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[5505] | 161 | roar_err_set(ROAR_ERROR_NOTSUP); |
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| 162 | return -1; |
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| 163 | break; |
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| 164 | } |
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| 165 | |
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| 166 | roar_err_set(ROAR_ERROR_BADRQC); |
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| 167 | return -1; |
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| 168 | } |
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| 169 | |
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| 170 | //ll |
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