1 | //basic.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2011 |
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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 | static int _start_server(struct roar_connection * con, const char * server, int type, int flags, uint_least32_t timeout) { |
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39 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) |
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40 | enum { |
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41 | NORMAL = 0, |
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42 | SYSTEM = 1 |
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43 | } mode = NORMAL; |
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44 | const char * daemonimage = NULL; |
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45 | int socks[2]; |
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46 | int r; |
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47 | char fhstr[12]; |
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48 | |
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49 | if ( !strncmp(server, "+fork=", 6) ) { |
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50 | server += 6; |
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51 | if ( server[0] == 0 ) { |
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52 | // no special case, we just ignore it. |
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53 | } else if ( server[0] == 'd' && server[1] == ':' ) { |
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54 | server += 2; |
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55 | daemonimage = server; |
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56 | } else if ( server[0] == '!' ) { |
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57 | server += 1; |
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58 | daemonimage = server; |
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59 | mode = SYSTEM; |
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60 | } else { |
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61 | roar_err_set(ROAR_ERROR_ILLSEQ); |
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62 | return -1; |
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63 | } |
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64 | } |
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65 | |
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66 | // TODO: FIXME: we should move this into the config structure. |
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67 | if ( daemonimage == NULL ) |
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68 | daemonimage = getenv("ROAR_DAEMONIMAGE"); |
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69 | |
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70 | if ( daemonimage == NULL || *daemonimage == 0 ) |
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71 | daemonimage = "roard"; |
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72 | |
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73 | if ( socketpair(AF_UNIX, SOCK_STREAM, 0, socks) == -1 ) { |
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74 | roar_err_from_errno(); |
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75 | return -1; |
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76 | } |
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77 | |
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78 | r = fork(); |
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79 | |
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80 | if ( r == -1 ) { // error! |
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81 | roar_err_from_errno(); |
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82 | ROAR_ERR("roar_socket_open_fork(*): Can not fork: %s", strerror(errno)); |
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83 | close(socks[0]); |
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84 | close(socks[1]); |
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85 | return -1; |
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86 | } else if ( r == 0 ) { // we are the child |
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87 | close(socks[0]); |
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88 | |
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89 | close(ROAR_STDIN ); // we do not want roard to have any standard input |
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90 | close(ROAR_STDOUT); // STDOUT is also not needed, so we close it, |
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91 | // but STDERR we keep open for error messages. |
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92 | |
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93 | snprintf(fhstr, sizeof(fhstr), "%i", socks[1]); |
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94 | |
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95 | switch (mode) { |
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96 | case NORMAL: |
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97 | execlp(daemonimage, daemonimage, "--no-listen", "--client-fh", fhstr, (_LIBROAR_GOOD_CAST char*)NULL); |
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98 | break; |
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99 | case SYSTEM: |
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100 | dup2(socks[1], ROAR_STDIN ); |
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101 | dup2(socks[1], ROAR_STDOUT); |
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102 | execl("/bin/sh", "/bin/sh", "-c", daemonimage, (_LIBROAR_GOOD_CAST char*)NULL); |
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103 | execlp("sh", "sh", "-c", daemonimage, (_LIBROAR_GOOD_CAST char*)NULL); |
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104 | break; |
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105 | } |
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106 | |
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107 | // we are still alive? |
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108 | ROAR_ERR("roar_socket_open_fork(*): alive after exec(), that's bad!"); |
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109 | _exit(1); |
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110 | } else { // we are the parent |
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111 | close(socks[1]); |
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112 | if ( roar_vio_open_fh_socket(con->viocon, socks[0]) == -1 ) { |
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113 | close(socks[0]); |
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114 | return -1; |
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115 | } else { |
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116 | con->flags |= ROAR_CON_FLAGS_VIO; |
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117 | } |
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118 | return 0; |
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119 | } |
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120 | |
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121 | return -1; |
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122 | #else |
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123 | ROAR_ERR("roar_socket_open_fork(*): There is no UNIX Domain Socket support in win32, download a real OS."); |
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124 | return -1; |
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125 | #endif |
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126 | } |
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127 | |
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128 | static int _connect_server(struct roar_connection * con, const char * server, int type, int flags, uint_least32_t timeout) { |
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129 | #if defined(ROAR_HAVE_STAT) && defined(ROAR_HAVE_H_SYS_STAT) |
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130 | struct stat sockstat; |
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131 | #endif |
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132 | const char * obj = NULL; |
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133 | char user_sock[128]; |
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134 | int is_decnet = 0; |
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135 | int port = 0; |
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136 | int i = 0; |
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137 | int fh = -1; |
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138 | int err; |
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139 | |
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140 | if ( con == NULL || server == NULL ) { |
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141 | roar_err_set(ROAR_ERROR_FAULT); |
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142 | return -1; |
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143 | } |
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144 | |
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145 | if ( !strcmp(server, "+invalid") ) { |
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146 | roar_err_set(ROAR_ERROR_CANCELED); |
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147 | return -1; |
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148 | } else if ( !strncmp(server, "+dstr=", 6) ) { |
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149 | if ( roar_vio_open_dstr_simple(con->viocon, server+6, ROAR_VIOF_READWRITE) == -1 ) |
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150 | return -1; |
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151 | con->flags |= ROAR_CON_FLAGS_VIO; |
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152 | return 0; |
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153 | } else if ( !strcmp(server, "+fork") || !strncmp(server, "+fork=", 6) ) { |
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154 | return _start_server(con, server, type, flags, timeout); |
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155 | } |
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156 | |
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157 | strncpy(user_sock, server, sizeof(user_sock)-1); |
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158 | user_sock[sizeof(user_sock)-1] = 0; |
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159 | |
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160 | |
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161 | if ( *user_sock != '/' ) { // don't test AF_UNIX sockets for ports |
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162 | for (i = 0; user_sock[i] != 0; i++) { |
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163 | if ( user_sock[i] == ':' ) { |
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164 | if ( user_sock[i+1] == ':' ) { // DECnet, leave unchanged |
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165 | is_decnet = 1; |
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166 | obj = &user_sock[i+2]; |
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167 | break; |
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168 | } |
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169 | |
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170 | port = atoi(&(user_sock[i+1])); |
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171 | user_sock[i] = 0; |
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172 | break; |
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173 | } |
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174 | } |
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175 | } |
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176 | |
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177 | if ( is_decnet ) { |
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178 | if ( *user_sock == ':' ) { |
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179 | if ( roar_socket_get_local_nodename() != NULL ) { |
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180 | strncpy(user_sock, roar_socket_get_local_nodename(), sizeof(user_sock)-1); |
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181 | user_sock[sizeof(user_sock)-1] = 0; |
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182 | roar_mm_strlcat(user_sock, server, sizeof(user_sock)-1); |
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183 | user_sock[sizeof(user_sock)-1] = 0; |
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184 | obj = strstr(user_sock, "::"); |
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185 | obj += 2; |
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186 | } |
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187 | } |
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188 | |
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189 | if ( *obj == 0 ) { |
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190 | #ifdef DN_MAXOBJL |
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191 | roar_mm_strlcat(user_sock, ROAR_DEFAULT_OBJECT, sizeof(user_sock)-1); |
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192 | user_sock[sizeof(user_sock)-1] = 0; |
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193 | #else |
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194 | ROAR_ERR("roar_connect_raw(*): size of DECnet object unknown."); |
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195 | #endif |
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196 | } |
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197 | ROAR_DBG("roar_connect_raw(*): user_sock='%s'", user_sock); |
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198 | } |
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199 | |
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200 | if ( port || is_decnet ) { |
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201 | fh = roar_socket_connect(user_sock, port); |
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202 | // restore the original string |
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203 | user_sock[i] = ':'; |
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204 | } else { |
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205 | #if defined(ROAR_HAVE_STAT) && defined(ROAR_HAVE_H_SYS_STAT) |
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206 | if ( user_sock[0] == '/' ) { |
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207 | if ( stat(user_sock, &sockstat) == 0 ) { |
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208 | if ( S_ISCHR(sockstat.st_mode) ) { |
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209 | return open(user_sock, O_RDWR|O_NOCTTY, 0666); |
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210 | } |
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211 | } |
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212 | } |
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213 | #endif |
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214 | fh = roar_socket_connect(user_sock, ROAR_DEFAULT_PORT); |
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215 | } |
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216 | |
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217 | if ( fh == -1 ) |
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218 | return -1; |
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219 | |
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220 | if ( roar_vio_open_fh_socket(con->viocon, fh) == -1 ) { |
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221 | err = roar_error; |
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222 | #ifdef ROAR_TARGET_WIN32 |
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223 | closesocket(fh); |
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224 | #else |
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225 | close(fh); |
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226 | #endif |
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227 | roar_error = err; |
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228 | return -1; |
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229 | } else { |
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230 | con->flags |= ROAR_CON_FLAGS_VIO; |
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231 | } |
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232 | |
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233 | roar_err_set(ROAR_ERROR_NONE); |
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234 | return 0; |
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235 | } |
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236 | |
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237 | static int roar_connect_raw (struct roar_connection * con, const char * server, int flags, uint_least32_t timeout) { |
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238 | #ifdef ROAR_HAVE_LIBSLP |
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239 | struct roar_libroar_config * config = roar_libroar_get_config(); |
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240 | #endif |
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241 | char user_sock[128]; |
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242 | char * roar_server; |
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243 | int i = 0; |
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244 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) |
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245 | struct passwd * pwd; |
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246 | #endif |
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247 | #ifdef ROAR_HAVE_LIBDNET |
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248 | struct stat decnet_stat; |
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249 | #endif |
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250 | #ifdef ROAR_HAVE_LIBX11 |
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251 | struct roar_x11_connection * x11con; |
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252 | #endif |
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253 | #ifdef ROAR_HAVE_LIBSLP |
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254 | struct roar_server * list; |
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255 | int workarounds_store; |
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256 | #endif |
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257 | |
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258 | roar_err_set(ROAR_ERROR_UNKNOWN); |
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259 | |
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260 | if ( timeout != 0 ) { |
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261 | roar_err_set(ROAR_ERROR_INVAL); |
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262 | return -1; |
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263 | } |
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264 | |
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265 | if ( flags & ROAR_ENUM_FLAG_HARDNONBLOCK ) |
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266 | flags |= ROAR_ENUM_FLAG_NONBLOCK; |
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267 | |
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268 | |
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269 | if ( server == NULL || *server == 0 ) |
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270 | server = roar_libroar_get_server(); |
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271 | |
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272 | if ( server == NULL || *server == 0 ) |
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273 | server = getenv("ROAR_SERVER"); |
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274 | |
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275 | #ifdef ROAR_HAVE_LIBX11 |
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276 | if ( server == NULL || *server == 0 ) { |
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277 | if ( (x11con = roar_x11_connect(NULL)) != NULL ) { |
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278 | server = roar_x11_get_prop(x11con, "ROAR_SERVER"); |
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279 | roar_x11_disconnect(x11con); |
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280 | } |
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281 | } |
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282 | #endif |
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283 | |
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284 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) |
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285 | if ( (server == NULL || *server == 0) && (i = readlink("/etc/roarserver", user_sock, sizeof(user_sock)-1)) != -1 ) { |
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286 | user_sock[i] = 0; |
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287 | server = user_sock; |
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288 | } |
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289 | #endif |
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290 | |
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291 | if ( server != NULL && !strcasecmp(server, "+slp") ) { |
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292 | server = roar_slp_find_roard(0); |
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293 | if ( server == NULL ) { |
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294 | return -1; |
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295 | } |
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296 | } |
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297 | |
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298 | if ( server == NULL || *server == 0 ) { |
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299 | /* connect via defaults */ |
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300 | |
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301 | #ifdef ROAR_HAVE_UNIX |
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302 | #ifndef ROAR_TARGET_MICROCONTROLLER |
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303 | roar_server = getenv("HOME"); |
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304 | #else |
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305 | roar_server = NULL; |
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306 | #endif |
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307 | |
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308 | if ( roar_server == NULL ) { |
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309 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) |
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310 | if ( (pwd = getpwuid(getuid())) == NULL ) { |
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311 | roar_server = "/NX-HOME-DIR"; |
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312 | } else { |
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313 | roar_server = pwd->pw_dir; |
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314 | } |
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315 | #else |
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316 | roar_server = "/WIN32-SUCKS"; |
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317 | #endif |
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318 | } |
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319 | |
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320 | snprintf(user_sock, sizeof(user_sock)-1, "%s/%s", roar_server, ROAR_DEFAULT_SOCK_USER); |
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321 | user_sock[sizeof(user_sock)-1] = 0; |
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322 | |
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323 | if ( _connect_server(con, user_sock, ROAR_SOCKET_TYPE_UNIX, flags, timeout) == 0 ) |
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324 | return 0; |
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325 | |
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326 | if ( _connect_server(con, ROAR_DEFAULT_SOCK_GLOBAL, ROAR_SOCKET_TYPE_UNIX, flags, timeout) == 0 ) |
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327 | return 0; |
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328 | #endif |
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329 | |
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330 | if ( _connect_server(con, ROAR_DEFAULT_HOSTPORT, ROAR_SOCKET_TYPE_TCP, flags, timeout) == 0 ) |
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331 | return 0; |
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332 | |
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333 | #ifdef ROAR_HAVE_LIBDNET |
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334 | if ( stat(ROAR_PROC_NET_DECNET, &decnet_stat) == 0 ) { |
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335 | if ( roar_socket_get_local_nodename() ) { |
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336 | snprintf(user_sock, 79, "%s::%s", roar_socket_get_local_nodename(), ROAR_DEFAULT_OBJECT); |
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337 | if ( _connect_server(con, user_sock, ROAR_SOCKET_TYPE_DECNET, flags, timeout) == 0 ) |
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338 | return 0; |
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339 | } |
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340 | } |
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341 | #endif |
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342 | |
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343 | if ( _connect_server(con, "+abstract", -1, flags, timeout) == 0 ) |
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344 | return 0; |
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345 | |
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346 | #ifdef ROAR_HAVE_LIBSLP |
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347 | if ( !(config->workaround.workarounds & ROAR_LIBROAR_CONFIG_WAS_NO_SLP) && |
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348 | !(flags & ROAR_ENUM_FLAG_NONBLOCK) |
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349 | ) { |
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350 | if ( (server = roar_slp_find_roard(0)) != NULL ) { |
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351 | if ( _connect_server(con, server, -1, 0, 0) == 0 ) |
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352 | return 0; |
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353 | |
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354 | /* in case we can not connect to the server given this may be a cache problem, |
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355 | we do a new lookup with the cache disabled in this case */ |
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356 | ROAR_WARN("roar_connect_raw(*): Can not connect to SLP located server, disabling cache"); |
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357 | if ( (server = roar_slp_find_roard(1)) != NULL ) |
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358 | if ( _connect_server(con, server, -1, 0, 0) == 0 ) |
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359 | return 0; |
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360 | } |
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361 | } |
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362 | |
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363 | workarounds_store = config->workaround.workarounds; |
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364 | config->workaround.workarounds |= ROAR_LIBROAR_CONFIG_WAS_NO_SLP; |
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365 | list = roar_enum_servers(flags, -1, -1); |
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366 | config->workaround.workarounds = workarounds_store; |
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367 | if ( list != NULL ) { |
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368 | for (i = 0; list[i].server != NULL; i++) { |
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369 | if ( _connect_server(con, list[i].server, -1, 0, 0) == 0 ) { |
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370 | roar_enum_servers_free(list); |
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371 | return 0; |
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372 | } |
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373 | } |
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374 | roar_enum_servers_free(list); |
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375 | } |
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376 | #endif |
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377 | |
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378 | return -1; |
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379 | |
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380 | } else { |
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381 | /* connect via (char*)server */ |
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382 | if ( _connect_server(con, server, -1, flags, timeout) != 0 ) |
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383 | return -1; |
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384 | return 0; |
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385 | } |
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386 | |
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387 | roar_err_set(ROAR_ERROR_NODEV); |
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388 | ROAR_DBG("roar_connect_raw(*) = -1 // error=NODEV"); |
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389 | return -1; |
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390 | } |
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391 | |
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392 | int roar_connect (struct roar_connection * con, const char * server, int flags, uint_least32_t timeout) { |
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393 | if ( con == NULL ) { |
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394 | roar_err_set(ROAR_ERROR_FAULT); |
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395 | return -1; |
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396 | } |
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397 | |
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398 | if ( roar_connect_none(con) == -1 ) |
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399 | return -1; |
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400 | |
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401 | roar_err_set(ROAR_ERROR_UNKNOWN); |
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402 | if ( roar_connect_raw(con, server, flags, timeout) == -1 ) |
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403 | return -1; |
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404 | |
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405 | if ( server != NULL ) { |
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406 | con->server_name = roar_mm_strdup(server); |
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407 | } |
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408 | |
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409 | return 0; |
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410 | } |
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411 | |
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412 | int roar_connect_none (struct roar_connection * con) { |
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413 | if ( con == NULL ) { |
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414 | roar_err_set(ROAR_ERROR_INVAL); |
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415 | return -1; |
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416 | } |
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417 | |
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418 | memset(con, 0, sizeof(struct roar_connection)); |
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419 | con->refc = 1; |
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420 | con->flags = ROAR_CON_FLAGS_NONE; |
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421 | con->version = 0; |
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422 | con->cb_userdata = NULL; |
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423 | con->cb = NULL; |
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424 | con->server_stds = NULL; |
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425 | con->server_name = NULL; |
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426 | |
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427 | roar_err_init(&(con->errorframe)); |
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428 | |
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429 | con->viocon = &(con->viocon_store); |
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430 | |
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431 | // con->flags |= ROAR_CON_FLAGS_VIO; |
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432 | |
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433 | roar_err_set(ROAR_ERROR_NONE); |
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434 | return 0; |
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435 | } |
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436 | |
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437 | int roar_connect_vio (struct roar_connection * con, struct roar_vio_calls * vio) { |
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438 | if ( con == NULL || vio == NULL ) { |
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439 | roar_err_set(ROAR_ERROR_INVAL); |
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440 | return -1; |
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441 | } |
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442 | |
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443 | if ( roar_connect_none(con) == -1 ) |
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444 | return -1; |
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445 | |
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446 | con->viocon = vio; |
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447 | con->flags |= ROAR_CON_FLAGS_VIO; |
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448 | |
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449 | return -1; |
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450 | } |
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451 | |
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452 | int roar_connect_fh (struct roar_connection * con, int fh) { |
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453 | |
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454 | if ( con == NULL || fh == -1 ) { |
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455 | roar_err_set(ROAR_ERROR_INVAL); |
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456 | return -1; |
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457 | } |
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458 | |
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459 | if ( roar_connect_none(con) == -1 ) |
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460 | return -1; |
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461 | |
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462 | // specal hack to set an ilegal value used internaly in libroar: |
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463 | if ( fh == -2 ) |
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464 | fh = -1; |
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465 | |
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466 | if ( roar_vio_open_fh_socket(con->viocon, fh) != -1 ) { |
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467 | con->flags |= ROAR_CON_FLAGS_VIO; |
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468 | } |
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469 | |
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470 | roar_err_set(ROAR_ERROR_NONE); |
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471 | return 0; |
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472 | } |
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473 | |
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474 | int roar_get_connection_fh (struct roar_connection * con) { |
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475 | int fh; |
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476 | |
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477 | ROAR_DBG("roar_get_connection_fh(con=%p) = ?", con); |
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478 | |
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479 | roar_debug_warn_sysio("roar_get_connection_fh", "roar_get_connection_vio2", NULL); |
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480 | |
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481 | if ( con == NULL ) |
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482 | return -1; |
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483 | |
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484 | ROAR_DBG("roar_get_connection_fh(con=%p) = ?", con); |
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485 | |
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486 | if ( roar_vio_ctl(con->viocon, ROAR_VIO_CTL_GET_FH, &fh) == -1 ) |
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487 | return -1; |
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488 | |
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489 | ROAR_DBG("roar_get_connection_fh(con=%p) = %i", con, fh); |
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490 | |
---|
491 | return fh; |
---|
492 | } |
---|
493 | |
---|
494 | struct roar_vio_calls * roar_get_connection_vio2 (struct roar_connection * con) { |
---|
495 | if ( con == NULL ) |
---|
496 | return NULL; |
---|
497 | |
---|
498 | if ( con->flags & ROAR_CON_FLAGS_VIO ) |
---|
499 | return con->viocon; |
---|
500 | |
---|
501 | // TODO: try to open the VIO. |
---|
502 | |
---|
503 | return NULL; |
---|
504 | } |
---|
505 | |
---|
506 | const char * roar_get_connection_server(struct roar_connection * con) { |
---|
507 | if ( con == NULL ) { |
---|
508 | roar_err_set(ROAR_ERROR_FAULT); |
---|
509 | return NULL; |
---|
510 | } |
---|
511 | |
---|
512 | return con->server_name; |
---|
513 | } |
---|
514 | |
---|
515 | int roar_connectionref(struct roar_connection * con) { |
---|
516 | if ( con == NULL ) { |
---|
517 | roar_err_set(ROAR_ERROR_FAULT); |
---|
518 | return -1; |
---|
519 | } |
---|
520 | |
---|
521 | con->refc++; |
---|
522 | |
---|
523 | return 0; |
---|
524 | } |
---|
525 | |
---|
526 | int roar_connectionunref(struct roar_connection * con) { |
---|
527 | struct roar_vio_calls * vio; |
---|
528 | struct roar_message m; |
---|
529 | |
---|
530 | if ( con == NULL ) { |
---|
531 | roar_err_set(ROAR_ERROR_FAULT); |
---|
532 | return -1; |
---|
533 | } |
---|
534 | |
---|
535 | con->refc--; |
---|
536 | |
---|
537 | if ( con->refc ) |
---|
538 | return 0; |
---|
539 | |
---|
540 | memset(&m, 0, sizeof(m)); |
---|
541 | |
---|
542 | m.datalen = 0; |
---|
543 | m.stream = -1; |
---|
544 | m.pos = 0; |
---|
545 | m.cmd = ROAR_CMD_QUIT; |
---|
546 | |
---|
547 | roar_req(con, &m, NULL); |
---|
548 | |
---|
549 | if ( (vio = roar_get_connection_vio2(con)) != NULL ) { |
---|
550 | roar_vio_close(vio); |
---|
551 | } |
---|
552 | |
---|
553 | if ( con->server_stds != NULL ) { |
---|
554 | roar_stds_free(con->server_stds); |
---|
555 | con->server_stds = NULL; |
---|
556 | } |
---|
557 | |
---|
558 | if ( con->server_name != NULL ) { |
---|
559 | roar_mm_free(con->server_name); |
---|
560 | con->server_name = NULL; |
---|
561 | } |
---|
562 | |
---|
563 | if ( con->flags & ROAR_CON_FLAGS_FREESELF ) { |
---|
564 | roar_mm_free(con); |
---|
565 | } else { |
---|
566 | roar_connect_fh(con, -2); |
---|
567 | } |
---|
568 | |
---|
569 | return 0; |
---|
570 | } |
---|
571 | |
---|
572 | int roar_set_connection_callback(struct roar_connection * con, |
---|
573 | void (*cb)(struct roar_connection * con, |
---|
574 | struct roar_message * mes, |
---|
575 | void * data, |
---|
576 | void * userdata), |
---|
577 | void * userdata) { |
---|
578 | if ( con == NULL ) |
---|
579 | return -1; |
---|
580 | |
---|
581 | con->cb = cb; |
---|
582 | con->cb_userdata = userdata; |
---|
583 | |
---|
584 | return 0; |
---|
585 | } |
---|
586 | |
---|
587 | int roar_sync (struct roar_connection * con) { |
---|
588 | // wait for any non-client reqs |
---|
589 | return roar_wait_msg(con, 0x0000, 0x8000); |
---|
590 | } |
---|
591 | |
---|
592 | int roar_wait_msg (struct roar_connection * con, int16_t seq, int16_t seqmask) { |
---|
593 | roar_err_set(ROAR_ERROR_NOSYS); |
---|
594 | return -1; |
---|
595 | } |
---|
596 | |
---|
597 | int roar_noop (struct roar_connection * con) { |
---|
598 | struct roar_message mes; |
---|
599 | |
---|
600 | if ( con == NULL ) { |
---|
601 | roar_err_set(ROAR_ERROR_FAULT); |
---|
602 | return -1; |
---|
603 | } |
---|
604 | |
---|
605 | memset(&mes, 0, sizeof(mes)); |
---|
606 | |
---|
607 | mes.cmd = ROAR_CMD_NOOP; |
---|
608 | mes.stream = -1; |
---|
609 | |
---|
610 | return roar_req3(con, &mes, NULL); |
---|
611 | } |
---|
612 | |
---|
613 | int roar_identify (struct roar_connection * con, const char * name) { |
---|
614 | struct roar_message mes; |
---|
615 | uint32_t pid; |
---|
616 | int max_len; |
---|
617 | |
---|
618 | roar_err_set(ROAR_ERROR_UNKNOWN); |
---|
619 | |
---|
620 | ROAR_DBG("roar_identify(*): try to identify myself..."); |
---|
621 | |
---|
622 | memset(&mes, 0, sizeof(mes)); |
---|
623 | |
---|
624 | mes.cmd = ROAR_CMD_IDENTIFY; |
---|
625 | mes.stream = -1; |
---|
626 | mes.pos = 0; |
---|
627 | |
---|
628 | ROAR_DBG("roar_identify(*): name=%p", name); |
---|
629 | |
---|
630 | if ( name == NULL ) |
---|
631 | name = "libroar client"; |
---|
632 | |
---|
633 | ROAR_DBG("roar_identify(*): name=%p", name); |
---|
634 | |
---|
635 | max_len = roar_mm_strlen(name); |
---|
636 | ROAR_DBG("roar_identify(*): strlen(name) = %i", max_len); |
---|
637 | |
---|
638 | if ( max_len > (LIBROAR_BUFFER_MSGDATA - 5) ) |
---|
639 | max_len = LIBROAR_BUFFER_MSGDATA - 5; |
---|
640 | |
---|
641 | mes.datalen = 5 + max_len; |
---|
642 | mes.data[0] = 1; |
---|
643 | |
---|
644 | pid = getpid(); |
---|
645 | mes.data[1] = (pid & 0xFF000000UL) >> 24; |
---|
646 | mes.data[2] = (pid & 0x00FF0000UL) >> 16; |
---|
647 | mes.data[3] = (pid & 0x0000FF00UL) >> 8; |
---|
648 | mes.data[4] = (pid & 0x000000FFUL) >> 0; |
---|
649 | ROAR_DBG("roar_identify(*): pid = %i", (int)pid); |
---|
650 | |
---|
651 | strncpy(mes.data+5, name, max_len); |
---|
652 | |
---|
653 | return roar_req3(con, &mes, NULL); |
---|
654 | } |
---|
655 | |
---|
656 | //ll |
---|