[0] | 1 | //basic.c: |
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| 2 | |
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[690] | 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008 |
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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, 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 22 | * |
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| 23 | * NOTE for everyone want's to change something and send patches: |
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| 24 | * read README and HACKING! There a addition information on |
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| 25 | * the license of this document you need to read before you send |
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| 26 | * any patches. |
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| 27 | * |
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| 28 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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| 29 | * or libpulse*: |
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| 30 | * The libs libroaresd, libroararts and libroarpulse link this lib |
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| 31 | * and are therefore GPL. Because of this it may be illigal to use |
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| 32 | * them with any software that uses libesd, libartsc or libpulse*. |
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| 33 | */ |
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| 34 | |
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[0] | 35 | #include "libroar.h" |
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| 36 | |
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| 37 | int roar_connect_raw (char * server) { |
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| 38 | char user_sock[80]; |
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| 39 | char * roar_server; |
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[701] | 40 | int i = 0; |
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[0] | 41 | int port = 0; |
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| 42 | int fh = -1; |
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[501] | 43 | int is_decnet = 0; |
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[516] | 44 | char * obj = NULL; |
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[1475] | 45 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) |
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[1026] | 46 | struct passwd * pwd; |
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[1393] | 47 | #endif |
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[828] | 48 | #ifdef ROAR_HAVE_LIBDNET |
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| 49 | struct stat decnet_stat; |
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| 50 | #endif |
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[0] | 51 | |
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[807] | 52 | roar_errno = ROAR_ERROR_UNKNOWN; |
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| 53 | |
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[61] | 54 | if ( server == NULL && (roar_server = getenv("ROAR_SERVER")) != NULL ) |
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[0] | 55 | server = roar_server; |
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| 56 | |
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[1436] | 57 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) |
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[448] | 58 | if ( server == NULL && (i = readlink("/etc/roarserver", user_sock, 79)) != -1 ) { |
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| 59 | user_sock[i] = 0; |
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| 60 | server = user_sock; |
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| 61 | } |
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[1093] | 62 | #endif |
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[448] | 63 | |
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[61] | 64 | if ( server == NULL || *server == 0 ) { |
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[0] | 65 | /* connect via defaults */ |
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| 66 | |
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[1764] | 67 | #ifdef ROAR_HAVE_UNIX |
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[1436] | 68 | #ifndef ROAR_TARGET_MICROCONTROLLER |
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[1026] | 69 | roar_server = getenv("HOME"); |
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[1435] | 70 | #else |
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| 71 | roar_server = NULL; |
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| 72 | #endif |
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[1026] | 73 | |
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| 74 | if ( roar_server == NULL ) { |
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[1436] | 75 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) |
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[1026] | 76 | if ( (pwd = getpwuid(getuid())) == NULL ) { |
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| 77 | roar_server = "/NX-HOME-DIR"; |
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| 78 | } else { |
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| 79 | roar_server = pwd->pw_dir; |
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| 80 | } |
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[1078] | 81 | #else |
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| 82 | roar_server = "/WIN32-SUCKS"; |
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| 83 | #endif |
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[1026] | 84 | } |
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| 85 | |
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| 86 | snprintf(user_sock, 79, "%s/%s", roar_server, ROAR_DEFAULT_SOCK_USER); |
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[0] | 87 | |
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| 88 | if ( (fh = roar_socket_connect(user_sock, 0)) != -1 ) |
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| 89 | return fh; |
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| 90 | |
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[237] | 91 | if ( (fh = roar_socket_connect(ROAR_DEFAULT_SOCK_GLOBAL, 0)) != -1 ) |
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| 92 | return fh; |
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[1764] | 93 | #endif |
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[237] | 94 | |
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[0] | 95 | if ( (fh = roar_socket_connect(ROAR_DEFAULT_HOST, ROAR_DEFAULT_PORT)) != -1 ) |
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| 96 | return fh; |
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| 97 | |
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[2007] | 98 | /* |
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[828] | 99 | #ifdef ROAR_HAVE_LIBDNET |
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| 100 | if ( stat(ROAR_PROC_NET_DECNET, &decnet_stat) == 0 ) { |
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| 101 | if ( roar_socket_get_local_nodename() ) { |
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| 102 | snprintf(user_sock, 79, "%s::%s", roar_socket_get_local_nodename(), ROAR_DEFAULT_OBJECT); |
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[2007] | 103 | if ( roar_socket_connect(user_sock, ROAR_DEFAULT_NUM) == -1 ) |
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| 104 | return -1; |
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[828] | 105 | } |
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[522] | 106 | } |
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[828] | 107 | #endif |
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[2007] | 108 | */ |
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| 109 | |
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| 110 | #ifdef ROAR_HAVE_LIBSLP |
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| 111 | return roar_connect_raw(roar_slp_find_roard()); |
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| 112 | #endif |
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[522] | 113 | |
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[0] | 114 | } else { |
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| 115 | /* connect via (char*)server */ |
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[501] | 116 | // find a port: |
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| 117 | if ( *server != '/' ) { // don't test AF_UNIX sockets for ports |
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| 118 | for (i = 0; server[i] != 0; i++) { |
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| 119 | if ( server[i] == ':' ) { |
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| 120 | if ( server[i+1] == ':' ) { // DECnet, leave unchanged |
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| 121 | is_decnet = 1; |
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[516] | 122 | obj = &server[i+2]; |
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[501] | 123 | break; |
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| 124 | } |
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| 125 | |
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| 126 | port = atoi(server+i+1); |
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| 127 | server[i] = 0; |
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| 128 | break; |
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| 129 | } |
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[0] | 130 | } |
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| 131 | } |
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| 132 | |
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[521] | 133 | if ( is_decnet ) { |
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| 134 | *user_sock = 0; |
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| 135 | if ( *server == ':' ) { |
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| 136 | if ( roar_socket_get_local_nodename() ) |
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[1066] | 137 | strncat(user_sock, roar_socket_get_local_nodename(), 6); |
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[521] | 138 | } |
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| 139 | |
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[1066] | 140 | strncat(user_sock, server, 79); |
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[516] | 141 | server = user_sock; |
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[521] | 142 | if ( *obj == 0 ) { |
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[1066] | 143 | #ifdef DN_MAXOBJL |
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| 144 | strncat(user_sock, ROAR_DEFAULT_OBJECT, DN_MAXOBJL+2); |
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| 145 | #else |
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| 146 | ROAR_ERR("roar_connect_raw(*): size of DECnet object unknown."); |
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| 147 | #endif |
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[521] | 148 | } |
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[516] | 149 | } |
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| 150 | |
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[501] | 151 | if ( port || is_decnet ) { |
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[0] | 152 | fh = roar_socket_connect(server, port); |
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| 153 | // restore the original string |
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| 154 | server[i] = ':'; |
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| 155 | } else { |
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| 156 | fh = roar_socket_connect(server, ROAR_DEFAULT_PORT); |
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| 157 | } |
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| 158 | } |
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| 159 | |
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[807] | 160 | if ( fh == -1 ) |
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| 161 | roar_errno = ROAR_ERROR_CONNREFUSED; |
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| 162 | |
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[0] | 163 | ROAR_DBG("roar_connect_raw(*) = %i", fh); |
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| 164 | |
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| 165 | return fh; |
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| 166 | } |
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| 167 | |
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| 168 | int roar_connect (struct roar_connection * con, char * server) { |
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[1315] | 169 | int fh; |
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| 170 | |
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| 171 | if ( con == NULL ) { |
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| 172 | roar_errno = ROAR_ERROR_INVAL; |
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| 173 | return -1; |
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| 174 | } |
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| 175 | |
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[807] | 176 | roar_errno = ROAR_ERROR_UNKNOWN; |
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[1315] | 177 | fh = roar_connect_raw(server); |
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[0] | 178 | |
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[1315] | 179 | if ( fh == -1 ) |
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[0] | 180 | return -1; |
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| 181 | |
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[1315] | 182 | return roar_connect_fh(con, fh); |
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| 183 | } |
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| 184 | |
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| 185 | int roar_connect_fh (struct roar_connection * con, int fh) { |
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| 186 | |
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| 187 | if ( con == NULL || fh == -1 ) { |
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| 188 | roar_errno = ROAR_ERROR_INVAL; |
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| 189 | return -1; |
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| 190 | } |
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| 191 | |
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| 192 | // specal hack to set an ilegal value used internaly in libroar: |
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| 193 | if ( fh == -2 ) |
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| 194 | fh = -1; |
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| 195 | |
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| 196 | memset(con, 0, sizeof(struct roar_connection)); |
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| 197 | |
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[1660] | 198 | con->__fh = fh; |
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[1315] | 199 | |
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[807] | 200 | roar_errno = ROAR_ERROR_NONE; |
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[0] | 201 | return 0; |
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| 202 | } |
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| 203 | |
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[1660] | 204 | int roar_get_connection_fh (struct roar_connection * con) { |
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| 205 | return con->__fh; |
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| 206 | } |
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| 207 | |
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[0] | 208 | int roar_disconnect (struct roar_connection * con) { |
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| 209 | struct roar_message m; |
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| 210 | |
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| 211 | m.datalen = 0; |
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| 212 | m.stream = 0; |
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[133] | 213 | m.pos = 0; |
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[0] | 214 | m.cmd = ROAR_CMD_QUIT; |
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| 215 | |
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| 216 | roar_req(con, &m, NULL); |
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| 217 | |
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[1475] | 218 | #ifdef ROAR_HAVE_IO_POSIX |
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[1660] | 219 | close(roar_get_connection_fh(con)); |
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[1475] | 220 | #endif |
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[0] | 221 | |
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[1660] | 222 | roar_connect_fh(con, -2); |
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[0] | 223 | |
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[807] | 224 | roar_errno = ROAR_ERROR_NONE; |
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| 225 | |
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[0] | 226 | return 0; |
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| 227 | } |
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| 228 | |
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| 229 | int roar_identify (struct roar_connection * con, char * name) { |
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| 230 | struct roar_message mes; |
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| 231 | pid_t pid; |
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| 232 | int max_len; |
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| 233 | |
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[807] | 234 | roar_errno = ROAR_ERROR_UNKNOWN; |
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| 235 | |
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[0] | 236 | ROAR_DBG("roar_identify(*): try to identify myself..."); |
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| 237 | |
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| 238 | mes.cmd = ROAR_CMD_IDENTIFY; |
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| 239 | mes.stream = 0; |
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| 240 | mes.pos = 0; |
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| 241 | |
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| 242 | ROAR_DBG("roar_identify(*): name=%p", name); |
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| 243 | |
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| 244 | if ( name == NULL ) |
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| 245 | name = "libroar client"; |
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| 246 | |
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| 247 | ROAR_DBG("roar_identify(*): name=%p", name); |
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| 248 | |
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| 249 | max_len = strlen(name); |
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| 250 | ROAR_DBG("roar_identify(*): strlen(name) = %i", max_len); |
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| 251 | |
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| 252 | if ( max_len > (LIBROAR_BUFFER_MSGDATA - 5) ) |
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| 253 | max_len = LIBROAR_BUFFER_MSGDATA - 5; |
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| 254 | |
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| 255 | mes.datalen = 5 + max_len; |
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| 256 | mes.data[0] = 1; |
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| 257 | |
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| 258 | pid = getpid(); |
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| 259 | *(uint32_t*)(mes.data+1) = ROAR_HOST2NET32(pid); |
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| 260 | ROAR_DBG("roar_identify(*): pid = %i", pid); |
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| 261 | |
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| 262 | strncpy(mes.data+5, name, max_len); |
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| 263 | |
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| 264 | return roar_req(con, &mes, NULL); |
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| 265 | } |
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| 266 | |
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[8] | 267 | #define _ROAR_MESS_BUF_LEN (1 /* version */ + 1 /* cmd */ + 2 /* stream */ + 4 /* pos */ + 2 /* datalen */) |
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[0] | 268 | int roar_send_message (struct roar_connection * con, struct roar_message * mes, char * data) { |
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[1319] | 269 | struct roar_vio_calls vio; |
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| 270 | |
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[1660] | 271 | if ( roar_vio_open_fh_socket(&vio, roar_get_connection_fh(con)) == -1 ) |
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[1319] | 272 | return -1; |
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| 273 | |
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| 274 | return roar_vsend_message(&vio, mes, data); |
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| 275 | } |
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| 276 | |
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| 277 | int roar_vsend_message(struct roar_vio_calls * vio, struct roar_message * mes, char * data) { |
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[0] | 278 | char buf[_ROAR_MESS_BUF_LEN]; |
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| 279 | |
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[807] | 280 | roar_errno = ROAR_ERROR_UNKNOWN; |
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| 281 | |
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[0] | 282 | ROAR_DBG("roar_send_message(*): try to send an request..."); |
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| 283 | |
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[8] | 284 | buf[0] = _ROAR_MESSAGE_VERSION; |
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| 285 | buf[1] = (unsigned char) mes->cmd; |
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| 286 | *(uint16_t*)(buf+2) = ROAR_HOST2NET16(mes->stream); |
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| 287 | *(uint32_t*)(buf+4) = ROAR_HOST2NET32(mes->pos); |
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| 288 | *(uint16_t*)(buf+8) = ROAR_HOST2NET16(mes->datalen); |
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[0] | 289 | |
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[1319] | 290 | if ( roar_vio_write(vio, buf, _ROAR_MESS_BUF_LEN) != _ROAR_MESS_BUF_LEN ) { |
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[807] | 291 | roar_errno = ROAR_ERROR_PIPE; |
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[0] | 292 | return -1; |
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[807] | 293 | } |
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[0] | 294 | |
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[807] | 295 | if ( mes->datalen != 0 ) { |
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[1319] | 296 | if ( roar_vio_write(vio, data == NULL ? mes->data : data, mes->datalen) != mes->datalen ) { |
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[807] | 297 | roar_errno = ROAR_ERROR_PIPE; |
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[0] | 298 | return -1; |
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[807] | 299 | } |
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| 300 | } |
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| 301 | |
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[1334] | 302 | roar_vio_sync(vio); // we need to do this becasue of ssl/compressed links |
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| 303 | |
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[807] | 304 | roar_errno = ROAR_ERROR_NONE; |
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[0] | 305 | |
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| 306 | ROAR_DBG("roar_send_message(*) = 0"); |
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| 307 | return 0; |
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| 308 | } |
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| 309 | |
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| 310 | int roar_recv_message (struct roar_connection * con, struct roar_message * mes, char ** data) { |
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[1319] | 311 | struct roar_vio_calls vio; |
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| 312 | |
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[1660] | 313 | if ( roar_vio_open_fh_socket(&vio, roar_get_connection_fh(con)) == -1 ) |
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[1319] | 314 | return -1; |
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| 315 | |
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| 316 | return roar_vrecv_message(&vio, mes, data); |
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| 317 | } |
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| 318 | |
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| 319 | int roar_vrecv_message(struct roar_vio_calls * vio, struct roar_message * mes, char ** data) { |
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[0] | 320 | char buf[_ROAR_MESS_BUF_LEN]; |
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| 321 | |
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[807] | 322 | roar_errno = ROAR_ERROR_UNKNOWN; |
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| 323 | |
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[0] | 324 | ROAR_DBG("roar_recv_message(*): try to get a response form the server..."); |
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| 325 | |
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| 326 | if ( data ) |
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| 327 | *data = NULL; |
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| 328 | |
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[1319] | 329 | if ( roar_vio_read(vio, buf, _ROAR_MESS_BUF_LEN) != _ROAR_MESS_BUF_LEN ) { |
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[807] | 330 | roar_errno = ROAR_ERROR_PROTO; |
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[0] | 331 | return -1; |
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[807] | 332 | } |
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[0] | 333 | |
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| 334 | ROAR_DBG("roar_recv_message(*): Got a header"); |
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| 335 | |
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[807] | 336 | if ( buf[0] != _ROAR_MESSAGE_VERSION ) { |
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| 337 | roar_errno = ROAR_ERROR_PROTO; |
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[8] | 338 | return -1; |
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[807] | 339 | } |
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[8] | 340 | |
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| 341 | mes->cmd = (unsigned char)buf[1]; |
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| 342 | mes->stream = ROAR_NET2HOST16(*(uint16_t*)(buf+2)); |
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| 343 | mes->pos = ROAR_NET2HOST32(*(uint32_t*)(buf+4)); |
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| 344 | mes->datalen = ROAR_NET2HOST16(*(uint16_t*)(buf+8)); |
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[0] | 345 | |
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| 346 | ROAR_DBG("roar_recv_message(*): command=%i(%s)", mes->cmd, |
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| 347 | mes->cmd == ROAR_CMD_OK ? "OK" : (mes->cmd == ROAR_CMD_ERROR ? "ERROR" : "UNKNOWN")); |
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| 348 | |
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[104] | 349 | if ( mes->datalen == 0 ) { |
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| 350 | ROAR_DBG("roar_recv_message(*): no data in this pkg"); |
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| 351 | ROAR_DBG("roar_recv_message(*) = 0"); |
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[807] | 352 | roar_errno = ROAR_ERROR_NONE; |
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[104] | 353 | return 0; |
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| 354 | } |
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| 355 | |
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[0] | 356 | if ( mes->datalen <= LIBROAR_BUFFER_MSGDATA ) { |
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[1319] | 357 | if ( roar_vio_read(vio, mes->data, mes->datalen) == mes->datalen ) { |
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[0] | 358 | ROAR_DBG("roar_recv_message(*): Got data!"); |
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| 359 | ROAR_DBG("roar_recv_message(*) = 0"); |
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[807] | 360 | roar_errno = ROAR_ERROR_NONE; |
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[0] | 361 | return 0; |
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| 362 | } |
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[807] | 363 | |
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| 364 | roar_errno = ROAR_ERROR_PIPE; |
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[0] | 365 | return -1; |
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| 366 | } else { |
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[807] | 367 | if ( data == NULL ) { |
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| 368 | roar_errno = ROAR_ERROR_MSGSIZE; |
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[0] | 369 | return -1; |
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[807] | 370 | } |
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[0] | 371 | |
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[807] | 372 | if ( (*data = malloc(mes->datalen)) == NULL ) { |
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| 373 | roar_errno = ROAR_ERROR_NOMEM; |
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[0] | 374 | return -1; |
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[807] | 375 | } |
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[0] | 376 | |
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[807] | 377 | if ( mes->datalen == 0 ) { |
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| 378 | roar_errno = ROAR_ERROR_NONE; |
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[0] | 379 | return 0; |
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[807] | 380 | } |
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[0] | 381 | |
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[1319] | 382 | if ( roar_vio_read(vio, *data, mes->datalen) == mes->datalen ) { |
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[0] | 383 | ROAR_DBG("roar_recv_message(*): Got data!"); |
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| 384 | ROAR_DBG("roar_recv_message(*) = 0"); |
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[807] | 385 | roar_errno = ROAR_ERROR_NONE; |
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[0] | 386 | return 0; |
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| 387 | } |
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[807] | 388 | |
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| 389 | roar_errno = ROAR_ERROR_PIPE; |
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[0] | 390 | return -1; |
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| 391 | } |
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| 392 | |
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[807] | 393 | // what happened here? |
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[0] | 394 | return -1; |
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| 395 | } |
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| 396 | |
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| 397 | int roar_req (struct roar_connection * con, struct roar_message * mes, char ** data) { |
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[1319] | 398 | struct roar_vio_calls vio; |
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| 399 | |
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[1660] | 400 | if ( roar_vio_open_fh_socket(&vio, roar_get_connection_fh(con)) == -1 ) |
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[1319] | 401 | return -1; |
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| 402 | |
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| 403 | return roar_vreq(&vio, mes, data); |
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| 404 | } |
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| 405 | |
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| 406 | int roar_vreq (struct roar_vio_calls * vio, struct roar_message * mes, char ** data) { |
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| 407 | if ( roar_vsend_message(vio, mes, data ? *data : NULL) != 0 ) |
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[0] | 408 | return -1; |
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| 409 | |
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| 410 | if ( data ) |
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| 411 | free(*data); |
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| 412 | |
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[1319] | 413 | return roar_vrecv_message(vio, mes, data); |
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[0] | 414 | } |
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| 415 | |
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| 416 | int roar_debug_message_print (struct roar_message * mes) { |
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| 417 | if ( mes == NULL ) |
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| 418 | return -1; |
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| 419 | |
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| 420 | ROAR_DBG("roar_debug_message_print(*): Command: %i", mes->cmd); |
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| 421 | ROAR_DBG("roar_debug_message_print(*): Stream : %u", mes->stream); |
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| 422 | ROAR_DBG("roar_debug_message_print(*): Pos : %u", mes->pos); |
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| 423 | ROAR_DBG("roar_debug_message_print(*): Datalen: %i", mes->datalen); |
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| 424 | |
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| 425 | ROAR_DBG("roar_debug_message_print(*) = 0"); |
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| 426 | return 0; |
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| 427 | } |
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| 428 | |
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| 429 | int roar_debug_audio_info_print (struct roar_audio_info * info) { |
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| 430 | if ( info == NULL ) |
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| 431 | return -1; |
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| 432 | |
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| 433 | ROAR_DBG("roar_debug_audio_info_print(*): Rate : %i", info->rate); |
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| 434 | ROAR_DBG("roar_debug_audio_info_print(*): Channels: %i", info->channels); |
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| 435 | ROAR_DBG("roar_debug_audio_info_print(*): Bits : %i", info->bits); |
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| 436 | ROAR_DBG("roar_debug_audio_info_print(*): Codec : %i", info->codec); |
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| 437 | |
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| 438 | ROAR_DBG("roar_debug_audio_info_print(*) = 0"); |
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| 439 | return 0; |
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| 440 | } |
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| 441 | |
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| 442 | //ll |
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