[4350] | 1 | //enumdev.c: |
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| 2 | |
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| 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010 |
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| 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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[4352] | 38 | // TODO: we should put all the data in one big alloced block. |
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| 39 | |
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[4353] | 40 | static int _test_server(struct roar_server * c, int flags) { |
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| 41 | struct roar_connection con; |
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[4435] | 42 | struct roar_server_info * info; |
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| 43 | |
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[4353] | 44 | if ( c->server == NULL ) |
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| 45 | return -1; |
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| 46 | |
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| 47 | if ( flags & ROAR_ENUM_FLAG_NONBLOCK ) |
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| 48 | return 0; |
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| 49 | |
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| 50 | if ( roar_connect(&con, (char*)c->server) == -1 ) |
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| 51 | return -1; |
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| 52 | |
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[4444] | 53 | if ( (flags & ROAR_ENUM_FLAG_DESC) || (flags & ROAR_ENUM_FLAG_LOCATION) ) { |
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| 54 | info = roar_server_info(&con); |
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| 55 | if ( info != NULL ) { |
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| 56 | if ( info->location != NULL ) |
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| 57 | c->location = roar_mm_strdup(info->location); |
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[4435] | 58 | |
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[4444] | 59 | if ( info->description != NULL ) |
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| 60 | c->description = roar_mm_strdup(info->description); |
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[4435] | 61 | |
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[4444] | 62 | roar_server_info_free(info); |
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| 63 | } |
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[4435] | 64 | } |
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| 65 | |
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[4353] | 66 | roar_disconnect(&con); |
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| 67 | |
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| 68 | return 0; |
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| 69 | } |
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| 70 | |
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| 71 | #define _add(x) if ( (x) != NULL ) servers[ret++] = roar_mm_strdup((x)) |
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| 72 | static ssize_t _esl_defaults(int flags, int dir, int socktype, char ** servers, size_t maxlen) { |
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| 73 | #ifdef ROAR_HAVE_LIBX11 |
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| 74 | struct roar_x11_connection * x11con; |
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| 75 | #endif |
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| 76 | ssize_t ret = 0; |
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| 77 | const char * new; |
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| 78 | char buf[1024]; |
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| 79 | int i; |
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| 80 | |
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| 81 | if ( maxlen < 10 ) |
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| 82 | return -1; |
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| 83 | |
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| 84 | new = roar_libroar_get_server(); |
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| 85 | _add(new); |
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| 86 | |
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| 87 | new = getenv("ROAR_SERVER"); |
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| 88 | _add(new); |
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| 89 | |
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| 90 | #ifdef ROAR_HAVE_LIBX11 |
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| 91 | if ( (x11con = roar_x11_connect(NULL)) != NULL ) { |
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| 92 | new = roar_x11_get_prop(x11con, "ROAR_SERVER"); |
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| 93 | _add(new); |
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| 94 | roar_x11_disconnect(x11con); |
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| 95 | } |
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| 96 | #endif |
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| 97 | |
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| 98 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) |
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| 99 | if ( (i = readlink("/etc/roarserver", buf, sizeof(buf)-1)) != -1 ) { |
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| 100 | buf[i] = 0; |
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| 101 | _add(buf); |
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| 102 | } |
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| 103 | #endif |
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| 104 | |
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| 105 | if ( (new = roar_env_get_home(0)) != NULL ) { |
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| 106 | snprintf(buf, sizeof(buf)-1, "%s/%s", new, ROAR_DEFAULT_SOCK_USER); |
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| 107 | buf[sizeof(buf)-1] = 0; |
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| 108 | _add(buf); |
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| 109 | } |
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| 110 | |
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| 111 | servers[ret++] = roar_mm_strdup(ROAR_DEFAULT_SOCK_GLOBAL); |
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| 112 | servers[ret++] = roar_mm_strdup(ROAR_DEFAULT_HOST); |
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| 113 | servers[ret++] = roar_mm_strdup("::" ROAR_DEFAULT_OBJECT); |
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| 114 | servers[ret++] = roar_mm_strdup("+abstract"); |
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| 115 | servers[ret++] = roar_mm_strdup("/tmp/muroard"); |
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| 116 | |
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| 117 | return ret; |
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| 118 | } |
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| 119 | |
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[4414] | 120 | static ssize_t _esl_slp(int flags, int dir, int socktype, char ** servers, size_t maxlen) { |
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| 121 | struct roar_slp_cookie cookie; |
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| 122 | int offset; |
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| 123 | char * url; |
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| 124 | size_t i; |
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| 125 | ssize_t ret = 0; |
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| 126 | |
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| 127 | if ( roar_slp_cookie_init(&cookie, NULL) == -1 ) |
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| 128 | return -1; |
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| 129 | |
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| 130 | if ( roar_slp_search(&cookie, ROAR_SLP_URL_TYPE) == -1 ) |
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| 131 | return -1; |
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| 132 | |
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| 133 | if ( cookie.matchcount == 0 ) |
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| 134 | return -1; |
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| 135 | |
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| 136 | ROAR_DBG("_esl_slp(*): cookie.matchcount=%i", (int)cookie.matchcount); |
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| 137 | |
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| 138 | for (i = 0; i < (size_t)cookie.matchcount && (ssize_t)maxlen > ret; i++) { |
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| 139 | url = cookie.match[i].url; |
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| 140 | ROAR_DBG("_esl_slp(*): cookie.match[%i].url='%s'", (int)i, url); |
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| 141 | |
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| 142 | offset = 0; |
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| 143 | |
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| 144 | if ( !strncmp(url, ROAR_SLP_URL_TYPE "://", ROAR_SLP_URL_TYPE_LEN + 3) ) |
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| 145 | offset = ROAR_SLP_URL_TYPE_LEN + 3; |
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| 146 | |
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| 147 | ROAR_DBG("_esl_slp(*): url=%p, offset=%i", url, offset); |
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| 148 | url = &(url[offset]); |
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| 149 | ROAR_DBG("_esl_slp(*): url='%s'", url); |
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| 150 | |
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| 151 | if ( *url == 0 ) |
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| 152 | continue; |
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| 153 | |
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| 154 | _add(url); |
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| 155 | } |
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| 156 | |
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| 157 | return ret; |
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| 158 | } |
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| 159 | |
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[4352] | 160 | struct locmed { |
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| 161 | int supflags; |
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| 162 | ssize_t (*func)(int flags, int dir, int socktype, char ** servers, size_t maxlen); |
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| 163 | }; |
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| 164 | |
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| 165 | static struct locmed _libroar_locmod[] = { |
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[4414] | 166 | {ROAR_ENUM_FLAG_NONBLOCK|ROAR_ENUM_FLAG_HARDNONBLOCK, _esl_defaults}, |
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| 167 | {ROAR_ENUM_FLAG_NONE, _esl_slp} |
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[4352] | 168 | }; |
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| 169 | |
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| 170 | struct roar_server * roar_enum_servers(int flags, int dir, int socktype) { |
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| 171 | struct roar_server * ret = NULL; |
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| 172 | struct roar_server * c; |
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| 173 | char * servers[64]; |
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| 174 | size_t have = 1; |
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[4354] | 175 | size_t i, cp, unic; |
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[4352] | 176 | ssize_t r; |
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| 177 | int testflags = flags; |
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[4354] | 178 | int is_uniq; |
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[4352] | 179 | |
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[4353] | 180 | // load config: |
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| 181 | roar_libroar_get_config(); |
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| 182 | |
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[4356] | 183 | if ( flags & ROAR_ENUM_FLAG_HARDNONBLOCK ) |
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| 184 | flags |= ROAR_ENUM_FLAG_NONBLOCK; |
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| 185 | |
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[4352] | 186 | if ( testflags & ROAR_ENUM_FLAG_DESC ) |
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| 187 | testflags -= ROAR_ENUM_FLAG_DESC; |
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| 188 | if ( testflags & ROAR_ENUM_FLAG_LOCATION ) |
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| 189 | testflags -= ROAR_ENUM_FLAG_LOCATION; |
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| 190 | |
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| 191 | for (i = 0; i < sizeof(_libroar_locmod)/sizeof(*_libroar_locmod); i++) { |
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| 192 | if ( (_libroar_locmod[i].supflags & testflags) == testflags ) { |
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| 193 | r = _libroar_locmod[i].func(flags, dir, socktype, &(servers[have-1]), (sizeof(servers)/sizeof(*servers)) - have); |
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| 194 | if ( r > 0 ) |
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| 195 | have += r; |
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| 196 | } |
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| 197 | } |
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| 198 | |
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| 199 | ret = roar_mm_malloc(have*sizeof(struct roar_server)); |
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| 200 | |
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| 201 | if (ret == NULL) |
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| 202 | return NULL; |
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| 203 | |
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| 204 | have--; |
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| 205 | |
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[4353] | 206 | for (i = cp = 0; i < have; i++) { |
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| 207 | c = &(ret[cp]); |
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[4352] | 208 | c->server = servers[i]; |
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| 209 | c->description = NULL; |
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| 210 | c->location = NULL; |
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[4354] | 211 | |
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| 212 | // uniq test: |
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| 213 | is_uniq = 1; |
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| 214 | for (unic = 0; unic < cp; unic++) |
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| 215 | if ( !strcmp(ret[unic].server, servers[i]) ) |
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| 216 | is_uniq = 0; |
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| 217 | |
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| 218 | if ( is_uniq && _test_server(c, flags) == 0 ) { |
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[4353] | 219 | cp++; |
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| 220 | } else { |
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| 221 | roar_mm_free(servers[i]); |
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| 222 | } |
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[4352] | 223 | } |
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| 224 | |
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[4353] | 225 | ret[cp].server = NULL; |
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| 226 | ret[cp].description = roar_mm_strdup("Default server"); |
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| 227 | ret[cp].location = NULL; |
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[4352] | 228 | |
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| 229 | return ret; |
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| 230 | } |
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| 231 | |
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| 232 | int roar_enum_servers_free(struct roar_server * servs) { |
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| 233 | struct roar_server * c; |
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| 234 | int i; |
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| 235 | |
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| 236 | if ( servs == NULL ) |
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| 237 | return -1; |
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| 238 | |
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| 239 | for (i = 0; (c = &(servs[i]))->server != NULL; i++) { |
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| 240 | roar_mm_free((void*)c->server); |
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| 241 | if ( c->description != NULL ) |
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| 242 | roar_mm_free((void*)c->description); |
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| 243 | if ( c->location != NULL ) |
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| 244 | roar_mm_free((void*)c->location); |
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| 245 | } |
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| 246 | |
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| 247 | if ( c->description != NULL ) |
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| 248 | roar_mm_free((void*)c->description); |
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| 249 | if ( c->location != NULL ) |
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| 250 | roar_mm_free((void*)c->location); |
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| 251 | |
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| 252 | roar_mm_free(servs); |
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| 253 | |
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| 254 | return 0; |
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| 255 | } |
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| 256 | |
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| 257 | ssize_t roar_enum_servers_num(struct roar_server * servs) { |
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| 258 | size_t ret; |
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| 259 | |
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| 260 | if ( servs == NULL ) |
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| 261 | return -1; |
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| 262 | |
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| 263 | for (ret = 0; servs[ret].server != NULL; ret++); |
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| 264 | |
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| 265 | return ret; |
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| 266 | } |
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| 267 | |
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[4350] | 268 | //ll |
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