Mercurial > hg > freeDiameter-dtls

annotate freeDiameterd/main.c @ 1219:8802d3fa5876

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Got successful handshake over DTLS with this version
author Sebastien Decugis <sdecugis@freediameter.net>
date Tue, 18 Jun 2013 15:51:11 +0800
parents cc96a4dfb3d1
children
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1 /*********************************************************************************************************
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2 * Software License Agreement (BSD License) *
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3 * Author: Sebastien Decugis <sdecugis@freediameter.net> *
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4 * *
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5 * Copyright (c) 2013, WIDE Project and NICT *
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6 * All rights reserved. *
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7 * *
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8 * Redistribution and use of this software in source and binary forms, with or without modification, are *
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9 * permitted provided that the following conditions are met: *
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10 * *
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11 * * Redistributions of source code must retain the above *
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12 * copyright notice, this list of conditions and the *
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13 * following disclaimer. *
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14 * *
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15 * * Redistributions in binary form must reproduce the above *
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16 * copyright notice, this list of conditions and the *
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17 * following disclaimer in the documentation and/or other *
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18 * materials provided with the distribution. *
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19 * *
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20 * * Neither the name of the WIDE Project or NICT nor the *
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21 * names of its contributors may be used to endorse or *
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22 * promote products derived from this software without *
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23 * specific prior written permission of WIDE Project and *
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24 * NICT. *
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25 * *
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26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED *
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27 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
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28 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR *
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29 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT *
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30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS *
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31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR *
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32 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF *
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33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
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34 *********************************************************************************************************/
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35
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36 #include <freeDiameter/freeDiameter-host.h>
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37 #include <freeDiameter/libfdcore.h>
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38
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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 int len = strlen(str);
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55 if (str[len-1] == '\n')
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56 len--;
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57 fd_log_debug(" [gnutls:%d] %.*s", level, len, str);
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58 }
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59
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60
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61 /* freeDiameter starting point */
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62 int main(int argc, char * argv[])
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63 {
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64 int ret;
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65 sigset_t sig_all;
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66
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67 /* Block all signals from the current thread and all its future children -- we will catch everything in catch_signals */
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68 sigfillset(&sig_all);
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69 ret = pthread_sigmask(SIG_BLOCK, &sig_all, NULL);
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70 ASSERT(ret == 0);
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71
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72 /* Parse the command-line */
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73 ret = main_cmdline(argc, argv);
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74 if (ret != 0) {
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75 return ret;
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76 }
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77
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78 /* Initialize the core library */
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79 ret = fd_core_initialize();
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80 if (ret != 0) {
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81 fprintf(stderr, "An error occurred during freeDiameter core library initialization.\n");
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82 return ret;
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83 }
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84
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85 /* Set gnutls debug level ? */
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86 if (gnutls_debug) {
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87 gnutls_global_set_log_function((gnutls_log_func)fd_gnutls_debug);
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88 gnutls_global_set_log_level (gnutls_debug);
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89 TRACE_DEBUG(INFO, "Enabled GNUTLS debug at level %d", gnutls_debug);
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90 }
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91
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92 /* Parse the configuration file */
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93 CHECK_FCT_DO( fd_core_parseconf(conffile), goto error );
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94
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95 /* Start the servers */
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96 CHECK_FCT_DO( fd_core_start(), goto error );
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97
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98 /* Allow SIGINT and SIGTERM from this point to terminate the application */
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99 CHECK_POSIX_DO( pthread_create(&signals_thr, NULL, catch_signals, NULL), goto error );
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100
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101 TRACE_DEBUG(INFO, FD_PROJECT_BINARY " daemon initialized.");
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102
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103 /* Now, just wait for termination */
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104 CHECK_FCT( fd_core_wait_shutdown_complete() );
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105
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106 /* Just in case it was not the result of a signal, we cancel signals_thr */
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107 fd_thr_term(&signals_thr);
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108
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109 return 0;
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110 error:
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111 CHECK_FCT_DO( fd_core_shutdown(), );
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112 CHECK_FCT( fd_core_wait_shutdown_complete() );
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113 fd_thr_term(&signals_thr);
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114 return -1;
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115 }
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116
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117
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118 /* Display package version */
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119 static void main_version_core(void)
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120 {
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121 printf("%s, version %s\n", FD_PROJECT_NAME, fd_core_version);
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122 }
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123
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124 /* Display package version and general info */
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125 static void main_version(void)
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126 {
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127 main_version_core();
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128 printf( "%s\n", FD_PROJECT_COPYRIGHT);
335
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129 printf( "\nSee " FD_PROJECT_NAME " homepage at http://www.freediameter.net/\n"
14
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130 " for information, updates and bug reports on this software.\n");
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131 }
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132
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133 /* Print command-line options */
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134 static void main_help( void )
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135 {
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136 main_version_core();
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137 printf( " This daemon is an implementation of the Diameter protocol\n"
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138 " used for Authentication, Authorization, and Accounting (AAA).\n");
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139 printf("\nUsage: " FD_PROJECT_BINARY " [OPTIONS]...\n");
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140 printf( " -h, --help Print help and exit\n"
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141 " -V, --version Print version and exit\n"
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142 " -c, --config=filename Read configuration from this file instead of the \n"
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74bba7975864 Cleanup the timing data and fd_msg_log feature that will be replaced by the new hooks mechanism. Kept the calls to fd_msg_log in comments to find the locations easily. WORK IN PROGRESS.
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143 " default location (" DEFAULT_CONF_PATH "/" FD_DEFAULT_CONF_FILENAME ").\n");
14
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144 printf( "\nDebug:\n"
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145 " These options are mostly useful for developers\n"
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146 " -l, --dbglocale Set the locale for error messages\n"
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147 " -d, --debug Increase verbosity of debug messages if default logger is used\n"
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148 " -q, --quiet Decrease verbosity if default logger is used\n"
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149 " -f, --dbg_func <func> Enable all traces within the function <func>\n"
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150 " -F, --dbg_file <file.c> Enable all traces within the file <file.c> (basename match)\n"
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151 " --dbg_gnutls <int> Enable GNU TLS debug at level <int>\n"
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152 );
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153 }
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154
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155 /* Parse the command-line */
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156 static int main_cmdline(int argc, char *argv[])
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157 {
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158 int c;
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159 int option_index = 0;
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160 char * locale;
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161
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162 struct option long_options[] = {
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163 { "help", no_argument, NULL, 'h' },
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164 { "version", no_argument, NULL, 'V' },
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165 { "config", required_argument, NULL, 'c' },
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166 { "debug", no_argument, NULL, 'd' },
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167 { "quiet", no_argument, NULL, 'q' },
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168 { "dbglocale", optional_argument, NULL, 'l' },
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169 { "dbg_func", required_argument, NULL, 'f' },
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170 { "dbg_file", required_argument, NULL, 'F' },
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171 { "dbg_gnutls", required_argument, NULL, 'g' },
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172 { NULL, 0, NULL, 0 }
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173 };
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174
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175 /* Loop on arguments */
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176 while (1) {
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177 c = getopt_long (argc, argv, "hVc:dql:M:", long_options, &option_index);
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178 if (c == -1)
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179 break; /* Exit from the loop. */
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180
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181 switch (c) {
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182 case 'h': /* Print help and exit. */
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183 main_help();
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184 exit(0);
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185
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186 case 'V': /* Print version and exit. */
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187 main_version();
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188 exit(0);
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189
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190 case 'c': /* Read configuration from this file instead of the default location.. */
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191 if (optarg == NULL ) {
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192 fprintf(stderr, "Missing argument with --config directive\n");
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193 return EINVAL;
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194 }
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195 conffile = optarg;
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196 break;
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197
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198 case 'l': /* Change the locale. */
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199 locale = setlocale(LC_ALL, optarg?:"");
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200 if (!locale) {
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201 fprintf(stderr, "Unable to set locale (%s)\n", optarg);
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202 return EINVAL;
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203 }
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204 break;
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205
658
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206 case 'd': /* Increase verbosity of debug messages. */
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1d1a20a0779d Second part of changeset 1083, now the code compiles again. Still missing some functions implementation, though
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207 fd_g_debug_lvl--;
658
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208 break;
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209
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210 case 'f': /* Full debug for the function with this name. */
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211 #ifdef DEBUG
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212 fd_debug_one_function = optarg;
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213 #else /* DEBUG */
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214 fprintf(stderr, "Error: must compile with DEBUG support to use --dbg_func feature!\n");
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215 return EINVAL;
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216 #endif /* DEBUG */
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217 break;
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218
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219 case 'F': /* Full debug for the file with this name. */
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220 #ifdef DEBUG
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221 fd_debug_one_file = basename(optarg);
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222 #else /* DEBUG */
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223 fprintf(stderr, "Error: must compile with DEBUG support to use --dbg_file feature!\n");
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224 return EINVAL;
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225 #endif /* DEBUG */
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226 break;
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227
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228 case 'g': /* Set a debug level and function for GNU TLS calls. */
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229 gnutls_debug = (int)atoi(optarg);
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230 break;
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231
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232 case 'q': /* Decrease verbosity then remove debug messages. */
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diff changeset
233 fd_g_debug_lvl++;
658
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234 break;
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235
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236 case '?': /* Invalid option. */
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237 /* `getopt_long' already printed an error message. */
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238 fprintf(stderr, "getopt_long found an invalid character\n");
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239 return EINVAL;
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240
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241 default: /* bug: option not considered. */
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242 fprintf(stderr, "A command-line option is missing in parser: %c\n", c);
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243 ASSERT(0);
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244 return EINVAL;
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245 }
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246 }
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247
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248 return 0;
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249 }
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diff changeset
250
658
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251 /* Handle some signals */
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252 static void * catch_signals(void * arg)
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diff changeset
253 {
658
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254 sigset_t ss;
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255 fd_log_threadname ( "signals catcher" );
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256
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257 sigemptyset(&ss);
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258
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259 /* Signals that terminate the daemon */
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260 sigaddset(&ss, SIGTERM);
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261 sigaddset(&ss, SIGINT);
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262
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263 /* Signals that send an event */
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264 sigaddset(&ss, SIGUSR1);
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265 sigaddset(&ss, SIGUSR2);
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266
683
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267 /* We unblock all other signals, so that their default handler is used (such as SIGTSTP) */
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268 CHECK_SYS_DO( pthread_sigmask( SIG_SETMASK, &ss, NULL ), goto out );
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269
658
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270 /* Now loop on the reception of the signal */
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271 while (1) {
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272 int sig, *ps;
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273
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274 /* Wait to receive the next signal */
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275 CHECK_POSIX_DO( sigwait(&ss, &sig), break );
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276
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277 TRACE_DEBUG(FULL, "Signal %d caught", sig);
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278
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279 switch (sig) {
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280 case SIGUSR1:
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281 case SIGUSR2:
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282 CHECK_MALLOC_DO( ps = malloc(sizeof(int)), goto out);
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283 *ps = sig;
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284 CHECK_FCT_DO( fd_event_send(fd_g_config->cnf_main_ev, FDEV_TRIGGER, sizeof(int), ps), goto out );
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285 break;
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286
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287 case SIGINT:
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288 case SIGTERM:
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289 CHECK_FCT_DO( fd_core_shutdown(), goto out );
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290
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291 }
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292 }
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293 out:
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294 /* Better way to handle this ? */
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295 ASSERT(0);
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296 return NULL;
628
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297 }
"Welcome to our mercurial repository"