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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38 | // TODO: we should put all the data in one big alloced block. |
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39 | |
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40 | static int _test_server(struct roar_server * c, int flags) { |
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41 | struct roar_connection con; |
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42 | if ( c->server == NULL ) |
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43 | return -1; |
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44 | |
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45 | if ( flags & ROAR_ENUM_FLAG_NONBLOCK ) |
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46 | return 0; |
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47 | |
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48 | if ( roar_connect(&con, (char*)c->server) == -1 ) |
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49 | return -1; |
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50 | |
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51 | roar_disconnect(&con); |
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52 | |
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53 | return 0; |
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54 | } |
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55 | |
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56 | #define _add(x) if ( (x) != NULL ) servers[ret++] = roar_mm_strdup((x)) |
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57 | static ssize_t _esl_defaults(int flags, int dir, int socktype, char ** servers, size_t maxlen) { |
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58 | #ifdef ROAR_HAVE_LIBX11 |
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59 | struct roar_x11_connection * x11con; |
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60 | #endif |
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61 | ssize_t ret = 0; |
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62 | const char * new; |
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63 | char buf[1024]; |
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64 | int i; |
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65 | |
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66 | if ( maxlen < 10 ) |
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67 | return -1; |
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68 | |
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69 | new = roar_libroar_get_server(); |
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70 | _add(new); |
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71 | |
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72 | new = getenv("ROAR_SERVER"); |
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73 | _add(new); |
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74 | |
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75 | #ifdef ROAR_HAVE_LIBX11 |
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76 | if ( (x11con = roar_x11_connect(NULL)) != NULL ) { |
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77 | new = roar_x11_get_prop(x11con, "ROAR_SERVER"); |
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78 | _add(new); |
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79 | roar_x11_disconnect(x11con); |
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80 | } |
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81 | #endif |
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82 | |
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83 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) |
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84 | if ( (i = readlink("/etc/roarserver", buf, sizeof(buf)-1)) != -1 ) { |
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85 | buf[i] = 0; |
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86 | _add(buf); |
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87 | } |
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88 | #endif |
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89 | |
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90 | if ( (new = roar_env_get_home(0)) != NULL ) { |
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91 | snprintf(buf, sizeof(buf)-1, "%s/%s", new, ROAR_DEFAULT_SOCK_USER); |
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92 | buf[sizeof(buf)-1] = 0; |
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93 | _add(buf); |
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94 | } |
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95 | |
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96 | servers[ret++] = roar_mm_strdup(ROAR_DEFAULT_SOCK_GLOBAL); |
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97 | servers[ret++] = roar_mm_strdup(ROAR_DEFAULT_HOST); |
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98 | servers[ret++] = roar_mm_strdup("::" ROAR_DEFAULT_OBJECT); |
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99 | servers[ret++] = roar_mm_strdup("+abstract"); |
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100 | servers[ret++] = roar_mm_strdup("/tmp/muroard"); |
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101 | |
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102 | return ret; |
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103 | } |
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104 | |
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105 | struct locmed { |
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106 | int supflags; |
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107 | ssize_t (*func)(int flags, int dir, int socktype, char ** servers, size_t maxlen); |
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108 | }; |
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109 | |
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110 | static struct locmed _libroar_locmod[] = { |
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111 | {ROAR_ENUM_FLAG_NONBLOCK|ROAR_ENUM_FLAG_HARDNONBLOCK, _esl_defaults} |
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112 | }; |
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113 | |
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114 | struct roar_server * roar_enum_servers(int flags, int dir, int socktype) { |
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115 | struct roar_server * ret = NULL; |
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116 | struct roar_server * c; |
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117 | char * servers[64]; |
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118 | size_t have = 1; |
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119 | size_t i, cp, unic; |
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120 | ssize_t r; |
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121 | int testflags = flags; |
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122 | int is_uniq; |
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123 | |
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124 | // load config: |
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125 | roar_libroar_get_config(); |
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126 | |
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127 | if ( flags & ROAR_ENUM_FLAG_HARDNONBLOCK ) |
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128 | flags |= ROAR_ENUM_FLAG_NONBLOCK; |
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129 | |
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130 | if ( testflags & ROAR_ENUM_FLAG_DESC ) |
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131 | testflags -= ROAR_ENUM_FLAG_DESC; |
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132 | if ( testflags & ROAR_ENUM_FLAG_LOCATION ) |
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133 | testflags -= ROAR_ENUM_FLAG_LOCATION; |
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134 | |
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135 | for (i = 0; i < sizeof(_libroar_locmod)/sizeof(*_libroar_locmod); i++) { |
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136 | if ( (_libroar_locmod[i].supflags & testflags) == testflags ) { |
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137 | r = _libroar_locmod[i].func(flags, dir, socktype, &(servers[have-1]), (sizeof(servers)/sizeof(*servers)) - have); |
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138 | if ( r > 0 ) |
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139 | have += r; |
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140 | } |
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141 | } |
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142 | |
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143 | ret = roar_mm_malloc(have*sizeof(struct roar_server)); |
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144 | |
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145 | if (ret == NULL) |
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146 | return NULL; |
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147 | |
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148 | have--; |
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149 | |
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150 | for (i = cp = 0; i < have; i++) { |
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151 | c = &(ret[cp]); |
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152 | c->server = servers[i]; |
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153 | c->description = NULL; |
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154 | c->location = NULL; |
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155 | |
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156 | // uniq test: |
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157 | is_uniq = 1; |
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158 | for (unic = 0; unic < cp; unic++) |
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159 | if ( !strcmp(ret[unic].server, servers[i]) ) |
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160 | is_uniq = 0; |
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161 | |
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162 | if ( is_uniq && _test_server(c, flags) == 0 ) { |
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163 | cp++; |
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164 | } else { |
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165 | roar_mm_free(servers[i]); |
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166 | } |
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167 | } |
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168 | |
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169 | ret[cp].server = NULL; |
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170 | ret[cp].description = roar_mm_strdup("Default server"); |
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171 | ret[cp].location = NULL; |
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172 | |
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173 | return ret; |
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174 | } |
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175 | |
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176 | int roar_enum_servers_free(struct roar_server * servs) { |
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177 | struct roar_server * c; |
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178 | int i; |
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179 | |
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180 | if ( servs == NULL ) |
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181 | return -1; |
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182 | |
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183 | for (i = 0; (c = &(servs[i]))->server != NULL; i++) { |
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184 | roar_mm_free((void*)c->server); |
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185 | if ( c->description != NULL ) |
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186 | roar_mm_free((void*)c->description); |
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187 | if ( c->location != NULL ) |
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188 | roar_mm_free((void*)c->location); |
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189 | } |
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190 | |
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191 | if ( c->description != NULL ) |
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192 | roar_mm_free((void*)c->description); |
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193 | if ( c->location != NULL ) |
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194 | roar_mm_free((void*)c->location); |
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195 | |
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196 | roar_mm_free(servs); |
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197 | |
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198 | return 0; |
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199 | } |
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200 | |
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201 | ssize_t roar_enum_servers_num(struct roar_server * servs) { |
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202 | size_t ret; |
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203 | |
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204 | if ( servs == NULL ) |
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205 | return -1; |
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206 | |
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207 | for (ret = 0; servs[ret].server != NULL; ret++); |
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208 | |
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209 | return ret; |
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210 | } |
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211 | |
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212 | //ll |
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