Mercurial > hg > freeDiameter
annotate freeDiameterd/main.c @ 1088:1d1a20a0779d
Second part of changeset 1083, now the code compiles again. Still missing some functions implementation, though
| author | Sebastien Decugis <sdecugis@freediameter.net> |
|---|---|
| date | Sat, 04 May 2013 21:25:27 +0200 |
| parents | 758b21ae6c3e |
| children | 51ce5a30df2d |
| rev | line source |
|---|---|
| 0 | 1 /********************************************************************************************************* |
| 2 * Software License Agreement (BSD License) * | |
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3 * Author: Sebastien Decugis <sdecugis@freediameter.net> * |
| 0 | 4 * * |
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5 * Copyright (c) 2013, WIDE Project and NICT * |
| 0 | 6 * All rights reserved. * |
| 7 * * | |
| 8 * Redistribution and use of this software in source and binary forms, with or without modification, are * | |
| 9 * permitted provided that the following conditions are met: * | |
| 10 * * | |
| 11 * * Redistributions of source code must retain the above * | |
| 12 * copyright notice, this list of conditions and the * | |
| 13 * following disclaimer. * | |
| 14 * * | |
| 15 * * Redistributions in binary form must reproduce the above * | |
| 16 * copyright notice, this list of conditions and the * | |
| 17 * following disclaimer in the documentation and/or other * | |
| 18 * materials provided with the distribution. * | |
| 19 * * | |
| 20 * * Neither the name of the WIDE Project or NICT nor the * | |
| 21 * names of its contributors may be used to endorse or * | |
| 22 * promote products derived from this software without * | |
| 23 * specific prior written permission of WIDE Project and * | |
| 24 * NICT. * | |
| 25 * * | |
| 26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED * | |
| 27 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * | |
| 28 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR * | |
| 29 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * | |
| 30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * | |
| 31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR * | |
| 32 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * | |
| 33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * | |
| 34 *********************************************************************************************************/ | |
| 35 | |
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36 #include <freeDiameter/freeDiameter-host.h> |
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37 #include <freeDiameter/libfdcore.h> |
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39 #include <signal.h> |
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40 #include <getopt.h> |
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41 #include <locale.h> |
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42 |
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43 |
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44 /* forward declarations */ |
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45 static int main_cmdline(int argc, char *argv[]); |
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46 static void * catch_signals(void * arg); |
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47 static pthread_t signals_thr; |
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48 |
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49 static char *conffile = NULL; |
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50 static int gnutls_debug = 0; |
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51 |
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52 /* gnutls debug */ |
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53 static void fd_gnutls_debug(int level, const char * str) { |
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54 fd_log_debug(" [gnutls:%d] %s", level, str); |
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55 } |
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56 |
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57 |
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58 /* freeDiameter starting point */ |
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59 int main(int argc, char * argv[]) |
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60 { |
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61 int ret; |
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62 sigset_t sig_all; |
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63 |
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64 /* Block all signals from the current thread and all its future children -- we will catch everything in catch_signals */ |
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65 sigfillset(&sig_all); |
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66 ret = pthread_sigmask(SIG_BLOCK, &sig_all, NULL); |
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67 ASSERT(ret == 0); |
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68 |
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69 /* Parse the command-line */ |
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70 ret = main_cmdline(argc, argv); |
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71 if (ret != 0) { |
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72 return ret; |
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73 } |
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74 |
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75 /* Initialize the core library */ |
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76 ret = fd_core_initialize(); |
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77 if (ret != 0) { |
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78 fprintf(stderr, "An error occurred during freeDiameter core library initialization.\n"); |
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79 return ret; |
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80 } |
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81 |
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82 /* Set gnutls debug level ? */ |
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83 if (gnutls_debug) { |
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84 gnutls_global_set_log_function((gnutls_log_func)fd_gnutls_debug); |
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85 gnutls_global_set_log_level (gnutls_debug); |
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86 TRACE_DEBUG(INFO, "Enabled GNUTLS debug at level %d", gnutls_debug); |
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87 } |
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88 |
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89 /* Allow SIGINT and SIGTERM from this point to terminate the application */ |
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90 CHECK_POSIX( pthread_create(&signals_thr, NULL, catch_signals, NULL) ); |
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91 |
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92 /* Parse the configuration file */ |
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93 CHECK_FCT( fd_core_parseconf(conffile) ); |
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94 |
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95 /* Start the servers */ |
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96 CHECK_FCT( fd_core_start() ); |
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97 |
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98 TRACE_DEBUG(INFO, FD_PROJECT_BINARY " daemon initialized."); |
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99 |
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100 /* Now, just wait for termination */ |
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101 CHECK_FCT( fd_core_wait_shutdown_complete() ); |
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102 |
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103 /* Just in case it was not the result of a signal, we cancel signals_thr */ |
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104 fd_thr_term(&signals_thr); |
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105 |
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106 return 0; |
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107 } |
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108 |
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109 |
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110 /* Display package version */ |
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111 static void main_version_core(void) |
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112 { |
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113 printf("%s, version %d.%d.%d" |
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114 #ifdef HG_VERSION |
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115 " (r%s" |
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116 # ifdef PACKAGE_HG_REVISION |
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117 "/%s" |
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118 # endif /* PACKAGE_HG_VERSION */ |
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119 ")" |
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120 #endif /* HG_VERSION */ |
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121 " (libfdcore: %s)\n", |
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122 FD_PROJECT_NAME, FD_PROJECT_VERSION_MAJOR, FD_PROJECT_VERSION_MINOR, FD_PROJECT_VERSION_REV |
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123 #ifdef HG_VERSION |
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124 , HG_VERSION |
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125 # ifdef PACKAGE_HG_REVISION |
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126 , PACKAGE_HG_REVISION |
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127 # endif /* PACKAGE_HG_VERSION */ |
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128 #endif /* HG_VERSION */ |
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129 , fd_core_version()); |
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130 } |
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131 |
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132 /* Display package version and general info */ |
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133 static void main_version(void) |
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134 { |
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135 main_version_core(); |
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136 printf( "%s\n", FD_PROJECT_COPYRIGHT); |
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137 printf( "\nSee " FD_PROJECT_NAME " homepage at http://www.freediameter.net/\n" |
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138 " for information, updates and bug reports on this software.\n"); |
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139 } |
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140 |
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141 /* Print command-line options */ |
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142 static void main_help( void ) |
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143 { |
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144 main_version_core(); |
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145 printf( " This daemon is an implementation of the Diameter protocol\n" |
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146 " used for Authentication, Authorization, and Accounting (AAA).\n"); |
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147 printf("\nUsage: " FD_PROJECT_BINARY " [OPTIONS]...\n"); |
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148 printf( " -h, --help Print help and exit\n" |
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149 " -V, --version Print version and exit\n" |
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150 " -c, --config=filename Read configuration from this file instead of the \n" |
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151 " default location (" DEFAULT_CONF_PATH "/" FD_DEFAULT_CONF_FILENAME ").\n"); |
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152 printf( "\nDebug:\n" |
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153 " These options are mostly useful for developers\n" |
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154 " -l, --dbglocale Set the locale for error messages\n" |
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155 " -d, --debug Increase verbosity of debug messages if default logger is used\n" |
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156 " -q, --quiet Decrease verbosity if default logger is used\n" |
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157 " --dbg_gnutls <int> Enable GNU TLS debug at level <int>\n"); |
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158 } |
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159 |
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160 /* Parse the command-line */ |
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161 static int main_cmdline(int argc, char *argv[]) |
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162 { |
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163 int c; |
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164 int option_index = 0; |
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165 char * locale; |
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166 |
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167 struct option long_options[] = { |
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168 { "help", no_argument, NULL, 'h' }, |
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169 { "version", no_argument, NULL, 'V' }, |
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170 { "config", required_argument, NULL, 'c' }, |
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171 { "debug", no_argument, NULL, 'd' }, |
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172 { "quiet", no_argument, NULL, 'q' }, |
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173 { "dbglocale", optional_argument, NULL, 'l' }, |
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174 { "dbg_func", required_argument, NULL, 'f' }, |
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175 { "dbg_file", required_argument, NULL, 'F' }, |
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176 { "dbg_gnutls", required_argument, NULL, 'g' }, |
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177 { NULL, 0, NULL, 0 } |
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178 }; |
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179 |
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180 /* Loop on arguments */ |
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181 while (1) { |
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182 c = getopt_long (argc, argv, "hVc:dql:M:", long_options, &option_index); |
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183 if (c == -1) |
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184 break; /* Exit from the loop. */ |
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185 |
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186 switch (c) { |
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187 case 'h': /* Print help and exit. */ |
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188 main_help(); |
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189 exit(0); |
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190 |
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191 case 'V': /* Print version and exit. */ |
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192 main_version(); |
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193 exit(0); |
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194 |
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195 case 'c': /* Read configuration from this file instead of the default location.. */ |
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196 if (optarg == NULL ) { |
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197 fprintf(stderr, "Missing argument with --config directive\n"); |
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198 return EINVAL; |
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199 } |
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200 conffile = optarg; |
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201 break; |
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202 |
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203 case 'l': /* Change the locale. */ |
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204 locale = setlocale(LC_ALL, optarg?:""); |
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205 if (!locale) { |
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206 fprintf(stderr, "Unable to set locale (%s)\n", optarg); |
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207 return EINVAL; |
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208 } |
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209 break; |
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210 |
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211 case 'd': /* Increase verbosity of debug messages. */ |
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212 fd_g_debug_lvl--; |
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213 break; |
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214 |
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215 case 'f': /* Full debug for the function with this name. */ |
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216 #ifdef DEBUG |
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217 fd_debug_one_function = optarg; |
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218 #else /* DEBUG */ |
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219 fprintf(stderr, "Error: must compile with DEBUG support to use --dbg_func feature!\n"); |
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220 return EINVAL; |
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221 #endif /* DEBUG */ |
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222 break; |
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223 |
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224 case 'F': /* Full debug for the file with this name. */ |
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225 #ifdef DEBUG |
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226 fd_debug_one_file = basename(optarg); |
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227 #else /* DEBUG */ |
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228 fprintf(stderr, "Error: must compile with DEBUG support to use --dbg_file feature!\n"); |
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229 return EINVAL; |
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230 #endif /* DEBUG */ |
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231 break; |
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232 |
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233 case 'g': /* Set a debug level and function for GNU TLS calls. */ |
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234 gnutls_debug = (int)atoi(optarg); |
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235 break; |
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236 |
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237 case 'q': /* Decrease verbosity then remove debug messages. */ |
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238 fd_g_debug_lvl++; |
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239 break; |
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240 |
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241 case '?': /* Invalid option. */ |
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242 /* `getopt_long' already printed an error message. */ |
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243 fprintf(stderr, "getopt_long found an invalid character\n"); |
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244 return EINVAL; |
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245 |
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246 default: /* bug: option not considered. */ |
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247 fprintf(stderr, "A command-line option is missing in parser: %c\n", c); |
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248 ASSERT(0); |
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249 return EINVAL; |
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250 } |
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251 } |
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252 |
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253 return 0; |
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254 } |
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255 |
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256 /* Handle some signals */ |
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257 static void * catch_signals(void * arg) |
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258 { |
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259 sigset_t ss; |
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260 fd_log_threadname ( "signals catcher" ); |
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261 |
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262 sigemptyset(&ss); |
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263 |
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264 /* Signals that terminate the daemon */ |
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265 sigaddset(&ss, SIGTERM); |
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266 sigaddset(&ss, SIGINT); |
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267 |
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268 /* Signals that send an event */ |
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269 sigaddset(&ss, SIGUSR1); |
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270 sigaddset(&ss, SIGUSR2); |
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271 |
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272 /* We unblock all other signals, so that their default handler is used (such as SIGTSTP) */ |
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273 CHECK_SYS_DO( pthread_sigmask( SIG_SETMASK, &ss, NULL ), goto out ); |
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274 |
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275 /* Now loop on the reception of the signal */ |
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276 while (1) { |
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277 int sig, *ps; |
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278 |
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279 /* Wait to receive the next signal */ |
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280 CHECK_POSIX_DO( sigwait(&ss, &sig), break ); |
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281 |
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282 TRACE_DEBUG(FULL, "Signal %d caught", sig); |
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283 |
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284 switch (sig) { |
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285 case SIGUSR1: |
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286 case SIGUSR2: |
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287 CHECK_MALLOC_DO( ps = malloc(sizeof(int)), goto out); |
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288 *ps = sig; |
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289 CHECK_FCT_DO( fd_event_send(fd_g_config->cnf_main_ev, FDEV_TRIGGER, sizeof(int), ps), goto out ); |
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290 break; |
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291 |
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292 case SIGINT: |
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293 case SIGTERM: |
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294 CHECK_FCT_DO( fd_core_shutdown(), goto out ); |
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295 |
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296 } |
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297 } |
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298 out: |
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299 /* Better way to handle this ? */ |
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300 ASSERT(0); |
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301 return NULL; |
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302 } |