[0] | 1 | //basic.c: |
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| 2 | |
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[690] | 3 | /* |
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[3372] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2010 |
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[690] | 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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[3517] | 21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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[690] | 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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[0] | 36 | #include "libroar.h" |
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| 37 | |
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| 38 | int roar_connect_raw (char * server) { |
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| 39 | char user_sock[80]; |
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| 40 | char * roar_server; |
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[701] | 41 | int i = 0; |
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[0] | 42 | int port = 0; |
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| 43 | int fh = -1; |
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[501] | 44 | int is_decnet = 0; |
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[516] | 45 | char * obj = NULL; |
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[1475] | 46 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) |
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[1026] | 47 | struct passwd * pwd; |
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[1393] | 48 | #endif |
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[828] | 49 | #ifdef ROAR_HAVE_LIBDNET |
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| 50 | struct stat decnet_stat; |
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| 51 | #endif |
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[3372] | 52 | #ifdef ROAR_HAVE_LIBX11 |
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| 53 | struct roar_x11_connection * x11con; |
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| 54 | #endif |
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[0] | 55 | |
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[807] | 56 | roar_errno = ROAR_ERROR_UNKNOWN; |
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| 57 | |
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[2897] | 58 | // load config |
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| 59 | roar_libroar_get_config(); |
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| 60 | |
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[2567] | 61 | if ( server == NULL ) |
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| 62 | server = roar_libroar_get_server(); |
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| 63 | |
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[61] | 64 | if ( server == NULL && (roar_server = getenv("ROAR_SERVER")) != NULL ) |
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[0] | 65 | server = roar_server; |
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| 66 | |
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[3372] | 67 | #ifdef ROAR_HAVE_LIBX11 |
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| 68 | if ( server == NULL ) { |
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| 69 | if ( (x11con = roar_x11_connect(NULL)) != NULL ) { |
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| 70 | server = roar_x11_get_prop(x11con, "ROAR_SERVER"); |
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| 71 | roar_x11_disconnect(x11con); |
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| 72 | } |
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| 73 | } |
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| 74 | #endif |
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| 75 | |
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[1436] | 76 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) |
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[448] | 77 | if ( server == NULL && (i = readlink("/etc/roarserver", user_sock, 79)) != -1 ) { |
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| 78 | user_sock[i] = 0; |
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| 79 | server = user_sock; |
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| 80 | } |
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[1093] | 81 | #endif |
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[448] | 82 | |
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[3077] | 83 | if ( server != NULL && !strcasecmp(server, "+slp") ) { |
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[3076] | 84 | server = roar_slp_find_roard(0); |
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| 85 | if ( server == NULL ) { |
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| 86 | return -1; |
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| 87 | } |
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| 88 | } |
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| 89 | |
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[61] | 90 | if ( server == NULL || *server == 0 ) { |
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[0] | 91 | /* connect via defaults */ |
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| 92 | |
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[1764] | 93 | #ifdef ROAR_HAVE_UNIX |
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[1436] | 94 | #ifndef ROAR_TARGET_MICROCONTROLLER |
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[1026] | 95 | roar_server = getenv("HOME"); |
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[1435] | 96 | #else |
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| 97 | roar_server = NULL; |
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| 98 | #endif |
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[1026] | 99 | |
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| 100 | if ( roar_server == NULL ) { |
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[1436] | 101 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) |
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[1026] | 102 | if ( (pwd = getpwuid(getuid())) == NULL ) { |
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| 103 | roar_server = "/NX-HOME-DIR"; |
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| 104 | } else { |
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| 105 | roar_server = pwd->pw_dir; |
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| 106 | } |
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[1078] | 107 | #else |
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| 108 | roar_server = "/WIN32-SUCKS"; |
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| 109 | #endif |
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[1026] | 110 | } |
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| 111 | |
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| 112 | snprintf(user_sock, 79, "%s/%s", roar_server, ROAR_DEFAULT_SOCK_USER); |
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[0] | 113 | |
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| 114 | if ( (fh = roar_socket_connect(user_sock, 0)) != -1 ) |
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| 115 | return fh; |
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| 116 | |
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[237] | 117 | if ( (fh = roar_socket_connect(ROAR_DEFAULT_SOCK_GLOBAL, 0)) != -1 ) |
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| 118 | return fh; |
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[1764] | 119 | #endif |
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[237] | 120 | |
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[0] | 121 | if ( (fh = roar_socket_connect(ROAR_DEFAULT_HOST, ROAR_DEFAULT_PORT)) != -1 ) |
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| 122 | return fh; |
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| 123 | |
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[828] | 124 | #ifdef ROAR_HAVE_LIBDNET |
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| 125 | if ( stat(ROAR_PROC_NET_DECNET, &decnet_stat) == 0 ) { |
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| 126 | if ( roar_socket_get_local_nodename() ) { |
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| 127 | snprintf(user_sock, 79, "%s::%s", roar_socket_get_local_nodename(), ROAR_DEFAULT_OBJECT); |
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[2010] | 128 | if ( (fh = roar_socket_connect(user_sock, ROAR_DEFAULT_NUM)) != -1 ) |
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| 129 | return fh; |
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[828] | 130 | } |
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[522] | 131 | } |
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[828] | 132 | #endif |
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[2007] | 133 | |
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| 134 | #ifdef ROAR_HAVE_LIBSLP |
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[2014] | 135 | if ( (server = roar_slp_find_roard(0)) != NULL ) |
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| 136 | if ( (fh = roar_connect_raw(server)) != -1 ) |
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| 137 | return fh; |
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| 138 | |
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| 139 | /* in case we can not connect to the server given this may be a cache problem, |
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| 140 | we do a new lookup with the cache disabled in this case */ |
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| 141 | ROAR_WARN("roar_connect_raw(*): Can not connect to SLP located server, disabling cache"); |
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| 142 | if ( (server = roar_slp_find_roard(1)) != NULL ) |
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| 143 | if ( (fh = roar_connect_raw(server)) != -1 ) |
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| 144 | return fh; |
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[2007] | 145 | #endif |
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[522] | 146 | |
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[2014] | 147 | return -1; |
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| 148 | |
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[0] | 149 | } else { |
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| 150 | /* connect via (char*)server */ |
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[501] | 151 | // find a port: |
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| 152 | if ( *server != '/' ) { // don't test AF_UNIX sockets for ports |
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| 153 | for (i = 0; server[i] != 0; i++) { |
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| 154 | if ( server[i] == ':' ) { |
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| 155 | if ( server[i+1] == ':' ) { // DECnet, leave unchanged |
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| 156 | is_decnet = 1; |
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[516] | 157 | obj = &server[i+2]; |
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[501] | 158 | break; |
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| 159 | } |
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| 160 | |
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| 161 | port = atoi(server+i+1); |
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| 162 | server[i] = 0; |
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| 163 | break; |
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| 164 | } |
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[0] | 165 | } |
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| 166 | } |
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| 167 | |
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[521] | 168 | if ( is_decnet ) { |
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| 169 | *user_sock = 0; |
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| 170 | if ( *server == ':' ) { |
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| 171 | if ( roar_socket_get_local_nodename() ) |
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[1066] | 172 | strncat(user_sock, roar_socket_get_local_nodename(), 6); |
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[521] | 173 | } |
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| 174 | |
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[1066] | 175 | strncat(user_sock, server, 79); |
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[516] | 176 | server = user_sock; |
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[521] | 177 | if ( *obj == 0 ) { |
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[1066] | 178 | #ifdef DN_MAXOBJL |
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| 179 | strncat(user_sock, ROAR_DEFAULT_OBJECT, DN_MAXOBJL+2); |
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| 180 | #else |
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| 181 | ROAR_ERR("roar_connect_raw(*): size of DECnet object unknown."); |
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| 182 | #endif |
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[521] | 183 | } |
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[516] | 184 | } |
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| 185 | |
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[501] | 186 | if ( port || is_decnet ) { |
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[0] | 187 | fh = roar_socket_connect(server, port); |
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| 188 | // restore the original string |
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| 189 | server[i] = ':'; |
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| 190 | } else { |
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| 191 | fh = roar_socket_connect(server, ROAR_DEFAULT_PORT); |
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| 192 | } |
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| 193 | } |
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| 194 | |
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[807] | 195 | if ( fh == -1 ) |
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| 196 | roar_errno = ROAR_ERROR_CONNREFUSED; |
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| 197 | |
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[0] | 198 | ROAR_DBG("roar_connect_raw(*) = %i", fh); |
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| 199 | |
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| 200 | return fh; |
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| 201 | } |
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| 202 | |
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| 203 | int roar_connect (struct roar_connection * con, char * server) { |
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[1315] | 204 | int fh; |
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| 205 | |
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| 206 | if ( con == NULL ) { |
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| 207 | roar_errno = ROAR_ERROR_INVAL; |
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| 208 | return -1; |
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| 209 | } |
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| 210 | |
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[807] | 211 | roar_errno = ROAR_ERROR_UNKNOWN; |
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[1315] | 212 | fh = roar_connect_raw(server); |
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[0] | 213 | |
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[1315] | 214 | if ( fh == -1 ) |
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[0] | 215 | return -1; |
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| 216 | |
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[1315] | 217 | return roar_connect_fh(con, fh); |
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| 218 | } |
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| 219 | |
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| 220 | int roar_connect_fh (struct roar_connection * con, int fh) { |
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| 221 | |
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| 222 | if ( con == NULL || fh == -1 ) { |
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| 223 | roar_errno = ROAR_ERROR_INVAL; |
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| 224 | return -1; |
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| 225 | } |
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| 226 | |
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| 227 | // specal hack to set an ilegal value used internaly in libroar: |
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| 228 | if ( fh == -2 ) |
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| 229 | fh = -1; |
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| 230 | |
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| 231 | memset(con, 0, sizeof(struct roar_connection)); |
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| 232 | |
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[1660] | 233 | con->__fh = fh; |
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[1315] | 234 | |
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[807] | 235 | roar_errno = ROAR_ERROR_NONE; |
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[0] | 236 | return 0; |
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| 237 | } |
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| 238 | |
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[1660] | 239 | int roar_get_connection_fh (struct roar_connection * con) { |
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[2809] | 240 | roar_debug_warn_sysio("roar_get_connection_fh", "roar_get_connection_vio", NULL); |
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| 241 | |
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[2043] | 242 | if ( con == NULL ) |
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| 243 | return -1; |
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| 244 | |
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[1660] | 245 | return con->__fh; |
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| 246 | } |
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| 247 | |
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[2043] | 248 | int roar_get_connection_vio (struct roar_connection * con, struct roar_vio_calls * vio) { |
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| 249 | if ( con == NULL || vio == NULL ) |
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| 250 | return -1; |
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| 251 | |
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[2809] | 252 | return roar_vio_open_fh_socket(vio, con->__fh); |
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[2043] | 253 | } |
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| 254 | |
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[0] | 255 | int roar_disconnect (struct roar_connection * con) { |
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[2809] | 256 | struct roar_vio_calls vio; |
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[0] | 257 | struct roar_message m; |
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| 258 | |
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| 259 | m.datalen = 0; |
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| 260 | m.stream = 0; |
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[133] | 261 | m.pos = 0; |
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[0] | 262 | m.cmd = ROAR_CMD_QUIT; |
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| 263 | |
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| 264 | roar_req(con, &m, NULL); |
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| 265 | |
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[2809] | 266 | if ( roar_get_connection_vio(con, &vio) != -1 ) { |
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| 267 | roar_vio_close(&vio); |
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| 268 | } |
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[0] | 269 | |
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[1660] | 270 | roar_connect_fh(con, -2); |
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[0] | 271 | |
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[807] | 272 | roar_errno = ROAR_ERROR_NONE; |
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| 273 | |
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[0] | 274 | return 0; |
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| 275 | } |
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| 276 | |
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| 277 | int roar_identify (struct roar_connection * con, char * name) { |
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| 278 | struct roar_message mes; |
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| 279 | pid_t pid; |
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| 280 | int max_len; |
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| 281 | |
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[807] | 282 | roar_errno = ROAR_ERROR_UNKNOWN; |
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| 283 | |
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[0] | 284 | ROAR_DBG("roar_identify(*): try to identify myself..."); |
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| 285 | |
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| 286 | mes.cmd = ROAR_CMD_IDENTIFY; |
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| 287 | mes.stream = 0; |
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| 288 | mes.pos = 0; |
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| 289 | |
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| 290 | ROAR_DBG("roar_identify(*): name=%p", name); |
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| 291 | |
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| 292 | if ( name == NULL ) |
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| 293 | name = "libroar client"; |
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| 294 | |
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| 295 | ROAR_DBG("roar_identify(*): name=%p", name); |
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| 296 | |
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| 297 | max_len = strlen(name); |
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| 298 | ROAR_DBG("roar_identify(*): strlen(name) = %i", max_len); |
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| 299 | |
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| 300 | if ( max_len > (LIBROAR_BUFFER_MSGDATA - 5) ) |
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| 301 | max_len = LIBROAR_BUFFER_MSGDATA - 5; |
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| 302 | |
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| 303 | mes.datalen = 5 + max_len; |
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| 304 | mes.data[0] = 1; |
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| 305 | |
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| 306 | pid = getpid(); |
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| 307 | *(uint32_t*)(mes.data+1) = ROAR_HOST2NET32(pid); |
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| 308 | ROAR_DBG("roar_identify(*): pid = %i", pid); |
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| 309 | |
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| 310 | strncpy(mes.data+5, name, max_len); |
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| 311 | |
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| 312 | return roar_req(con, &mes, NULL); |
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| 313 | } |
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| 314 | |
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[8] | 315 | #define _ROAR_MESS_BUF_LEN (1 /* version */ + 1 /* cmd */ + 2 /* stream */ + 4 /* pos */ + 2 /* datalen */) |
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[0] | 316 | int roar_send_message (struct roar_connection * con, struct roar_message * mes, char * data) { |
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[1319] | 317 | struct roar_vio_calls vio; |
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| 318 | |
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[2809] | 319 | if ( roar_get_connection_vio(con, &vio) == -1 ) |
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[1319] | 320 | return -1; |
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| 321 | |
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| 322 | return roar_vsend_message(&vio, mes, data); |
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| 323 | } |
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| 324 | |
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| 325 | int roar_vsend_message(struct roar_vio_calls * vio, struct roar_message * mes, char * data) { |
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[0] | 326 | char buf[_ROAR_MESS_BUF_LEN]; |
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| 327 | |
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[807] | 328 | roar_errno = ROAR_ERROR_UNKNOWN; |
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| 329 | |
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[0] | 330 | ROAR_DBG("roar_send_message(*): try to send an request..."); |
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| 331 | |
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[8] | 332 | buf[0] = _ROAR_MESSAGE_VERSION; |
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| 333 | buf[1] = (unsigned char) mes->cmd; |
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| 334 | *(uint16_t*)(buf+2) = ROAR_HOST2NET16(mes->stream); |
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| 335 | *(uint32_t*)(buf+4) = ROAR_HOST2NET32(mes->pos); |
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| 336 | *(uint16_t*)(buf+8) = ROAR_HOST2NET16(mes->datalen); |
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[0] | 337 | |
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[1319] | 338 | if ( roar_vio_write(vio, buf, _ROAR_MESS_BUF_LEN) != _ROAR_MESS_BUF_LEN ) { |
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[807] | 339 | roar_errno = ROAR_ERROR_PIPE; |
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[0] | 340 | return -1; |
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[807] | 341 | } |
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[0] | 342 | |
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[807] | 343 | if ( mes->datalen != 0 ) { |
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[1319] | 344 | if ( roar_vio_write(vio, data == NULL ? mes->data : data, mes->datalen) != mes->datalen ) { |
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[807] | 345 | roar_errno = ROAR_ERROR_PIPE; |
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[0] | 346 | return -1; |
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[807] | 347 | } |
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| 348 | } |
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| 349 | |
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| 350 | roar_errno = ROAR_ERROR_NONE; |
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[0] | 351 | |
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| 352 | ROAR_DBG("roar_send_message(*) = 0"); |
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| 353 | return 0; |
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| 354 | } |
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| 355 | |
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| 356 | int roar_recv_message (struct roar_connection * con, struct roar_message * mes, char ** data) { |
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[1319] | 357 | struct roar_vio_calls vio; |
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| 358 | |
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[2809] | 359 | if ( roar_get_connection_vio(con, &vio) == -1 ) |
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[1319] | 360 | return -1; |
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| 361 | |
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| 362 | return roar_vrecv_message(&vio, mes, data); |
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| 363 | } |
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| 364 | |
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| 365 | int roar_vrecv_message(struct roar_vio_calls * vio, struct roar_message * mes, char ** data) { |
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[0] | 366 | char buf[_ROAR_MESS_BUF_LEN]; |
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| 367 | |
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[807] | 368 | roar_errno = ROAR_ERROR_UNKNOWN; |
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| 369 | |
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[0] | 370 | ROAR_DBG("roar_recv_message(*): try to get a response form the server..."); |
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| 371 | |
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| 372 | if ( data ) |
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| 373 | *data = NULL; |
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| 374 | |
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[1319] | 375 | if ( roar_vio_read(vio, buf, _ROAR_MESS_BUF_LEN) != _ROAR_MESS_BUF_LEN ) { |
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[807] | 376 | roar_errno = ROAR_ERROR_PROTO; |
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[0] | 377 | return -1; |
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[807] | 378 | } |
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[0] | 379 | |
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| 380 | ROAR_DBG("roar_recv_message(*): Got a header"); |
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| 381 | |
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[807] | 382 | if ( buf[0] != _ROAR_MESSAGE_VERSION ) { |
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| 383 | roar_errno = ROAR_ERROR_PROTO; |
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[8] | 384 | return -1; |
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[807] | 385 | } |
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[8] | 386 | |
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| 387 | mes->cmd = (unsigned char)buf[1]; |
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| 388 | mes->stream = ROAR_NET2HOST16(*(uint16_t*)(buf+2)); |
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| 389 | mes->pos = ROAR_NET2HOST32(*(uint32_t*)(buf+4)); |
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| 390 | mes->datalen = ROAR_NET2HOST16(*(uint16_t*)(buf+8)); |
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[0] | 391 | |
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| 392 | ROAR_DBG("roar_recv_message(*): command=%i(%s)", mes->cmd, |
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| 393 | mes->cmd == ROAR_CMD_OK ? "OK" : (mes->cmd == ROAR_CMD_ERROR ? "ERROR" : "UNKNOWN")); |
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| 394 | |
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[104] | 395 | if ( mes->datalen == 0 ) { |
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| 396 | ROAR_DBG("roar_recv_message(*): no data in this pkg"); |
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| 397 | ROAR_DBG("roar_recv_message(*) = 0"); |
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[807] | 398 | roar_errno = ROAR_ERROR_NONE; |
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[104] | 399 | return 0; |
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| 400 | } |
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| 401 | |
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[0] | 402 | if ( mes->datalen <= LIBROAR_BUFFER_MSGDATA ) { |
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[1319] | 403 | if ( roar_vio_read(vio, mes->data, mes->datalen) == mes->datalen ) { |
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[0] | 404 | ROAR_DBG("roar_recv_message(*): Got data!"); |
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| 405 | ROAR_DBG("roar_recv_message(*) = 0"); |
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[807] | 406 | roar_errno = ROAR_ERROR_NONE; |
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[0] | 407 | return 0; |
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| 408 | } |
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[807] | 409 | |
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| 410 | roar_errno = ROAR_ERROR_PIPE; |
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[0] | 411 | return -1; |
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| 412 | } else { |
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[807] | 413 | if ( data == NULL ) { |
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| 414 | roar_errno = ROAR_ERROR_MSGSIZE; |
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[0] | 415 | return -1; |
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[807] | 416 | } |
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[0] | 417 | |
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[807] | 418 | if ( (*data = malloc(mes->datalen)) == NULL ) { |
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| 419 | roar_errno = ROAR_ERROR_NOMEM; |
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[0] | 420 | return -1; |
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[807] | 421 | } |
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[0] | 422 | |
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[807] | 423 | if ( mes->datalen == 0 ) { |
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| 424 | roar_errno = ROAR_ERROR_NONE; |
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[0] | 425 | return 0; |
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[807] | 426 | } |
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[0] | 427 | |
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[1319] | 428 | if ( roar_vio_read(vio, *data, mes->datalen) == mes->datalen ) { |
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[0] | 429 | ROAR_DBG("roar_recv_message(*): Got data!"); |
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| 430 | ROAR_DBG("roar_recv_message(*) = 0"); |
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[807] | 431 | roar_errno = ROAR_ERROR_NONE; |
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[0] | 432 | return 0; |
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| 433 | } |
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[807] | 434 | |
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| 435 | roar_errno = ROAR_ERROR_PIPE; |
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[0] | 436 | return -1; |
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| 437 | } |
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| 438 | |
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[807] | 439 | // what happened here? |
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[0] | 440 | return -1; |
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| 441 | } |
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| 442 | |
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| 443 | int roar_req (struct roar_connection * con, struct roar_message * mes, char ** data) { |
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[1319] | 444 | struct roar_vio_calls vio; |
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| 445 | |
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[2809] | 446 | if ( roar_get_connection_vio(con, &vio) == -1 ) |
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[1319] | 447 | return -1; |
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| 448 | |
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| 449 | return roar_vreq(&vio, mes, data); |
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| 450 | } |
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| 451 | |
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| 452 | int roar_vreq (struct roar_vio_calls * vio, struct roar_message * mes, char ** data) { |
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| 453 | if ( roar_vsend_message(vio, mes, data ? *data : NULL) != 0 ) |
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[0] | 454 | return -1; |
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| 455 | |
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| 456 | if ( data ) |
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| 457 | free(*data); |
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| 458 | |
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[2053] | 459 | roar_vio_sync(vio); // we need to do this becasue of ssl/compressed links |
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| 460 | |
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[1319] | 461 | return roar_vrecv_message(vio, mes, data); |
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[0] | 462 | } |
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| 463 | |
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| 464 | int roar_debug_message_print (struct roar_message * mes) { |
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| 465 | if ( mes == NULL ) |
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| 466 | return -1; |
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| 467 | |
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| 468 | ROAR_DBG("roar_debug_message_print(*): Command: %i", mes->cmd); |
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| 469 | ROAR_DBG("roar_debug_message_print(*): Stream : %u", mes->stream); |
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| 470 | ROAR_DBG("roar_debug_message_print(*): Pos : %u", mes->pos); |
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| 471 | ROAR_DBG("roar_debug_message_print(*): Datalen: %i", mes->datalen); |
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| 472 | |
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| 473 | ROAR_DBG("roar_debug_message_print(*) = 0"); |
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| 474 | return 0; |
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| 475 | } |
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| 476 | |
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| 477 | int roar_debug_audio_info_print (struct roar_audio_info * info) { |
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| 478 | if ( info == NULL ) |
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| 479 | return -1; |
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| 480 | |
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| 481 | ROAR_DBG("roar_debug_audio_info_print(*): Rate : %i", info->rate); |
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| 482 | ROAR_DBG("roar_debug_audio_info_print(*): Channels: %i", info->channels); |
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| 483 | ROAR_DBG("roar_debug_audio_info_print(*): Bits : %i", info->bits); |
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| 484 | ROAR_DBG("roar_debug_audio_info_print(*): Codec : %i", info->codec); |
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| 485 | |
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| 486 | ROAR_DBG("roar_debug_audio_info_print(*) = 0"); |
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| 487 | return 0; |
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| 488 | } |
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| 489 | |
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| 490 | //ll |
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