2 This file is part of GNUnet.
3 (C) 2009 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 2, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
22 * @file util/program.c
23 * @brief standard code for GNUnet startup and shutdown
24 * @author Christian Grothoff
28 #include "gnunet_common.h"
29 #include "gnunet_configuration_lib.h"
30 #include "gnunet_crypto_lib.h"
31 #include "gnunet_directories.h"
32 #include "gnunet_getopt_lib.h"
33 #include "gnunet_os_lib.h"
34 #include "gnunet_program_lib.h"
35 #include "gnunet_resolver_service.h"
36 #include "gnunet_scheduler_lib.h"
40 * Context for the command.
50 * Name of the configuration file used, can be NULL!
55 * Main function to run.
57 GNUNET_PROGRAM_Main task;
65 * Configuration to use.
67 const struct GNUNET_CONFIGURATION_Handle *cfg;
73 * Initial task called by the scheduler for each
74 * program. Runs the program-specific main task.
77 program_main (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
79 struct CommandContext *cc = cls;
81 GNUNET_RESOLVER_connect (cc->cfg);
82 cc->task (cc->task_cls, cc->args, cc->cfgfile, cc->cfg);
87 * Compare function for 'qsort' to sort command-line arguments by the
90 * @param a1 first command line option
91 * @param a2 second command line option
94 cmd_sorter (__const void *a1, __const void *a2)
96 __const struct GNUNET_GETOPT_CommandLineOption *c1 = a1;
97 __const struct GNUNET_GETOPT_CommandLineOption *c2 = a2;
98 if (toupper ( (unsigned char) c1->shortName) > toupper ( (unsigned char) c2->shortName))
100 if (toupper ( (unsigned char) c1->shortName) < toupper ( (unsigned char) c2->shortName))
102 if (c1->shortName > c2->shortName)
104 if (c1->shortName < c2->shortName)
111 * Run a standard GNUnet command startup sequence (initialize loggers
112 * and configuration, parse options).
114 * @param argc number of command line arguments
115 * @param argv command line arguments
116 * @param binaryName our expected name
117 * @param binaryHelp help text for the program
118 * @param options command line options
119 * @param task main function to run
120 * @param task_cls closure for task
121 * @return GNUNET_SYSERR on error, GNUNET_OK on success
124 GNUNET_PROGRAM_run (int argc,
126 const char *binaryName,
127 const char *binaryHelp,
128 const struct GNUNET_GETOPT_CommandLineOption *options,
129 GNUNET_PROGRAM_Main task, void *task_cls)
131 struct CommandContext cc;
137 unsigned long long skew_offset;
138 unsigned long long skew_variance;
139 long long clock_offset;
140 struct GNUNET_CONFIGURATION_Handle *cfg;
141 struct GNUNET_GETOPT_CommandLineOption defoptions[] = {
142 GNUNET_GETOPT_OPTION_CFG_FILE (&cc.cfgfile),
143 GNUNET_GETOPT_OPTION_HELP (binaryHelp),
144 GNUNET_GETOPT_OPTION_LOGLEVEL (&loglev),
145 GNUNET_GETOPT_OPTION_LOGFILE (&logfile),
146 GNUNET_GETOPT_OPTION_VERSION (PACKAGE_VERSION)
148 struct GNUNET_GETOPT_CommandLineOption *allopts;
154 gargs = getenv ("GNUNET_ARGS");
166 GNUNET_array_append (gargv, gargc, GNUNET_strdup (argv[i]));
167 cargs = GNUNET_strdup (gargs);
168 tok = strtok (cargs, " ");
171 GNUNET_array_append (gargv, gargc, GNUNET_strdup (tok));
172 tok = strtok (NULL, " ");
175 GNUNET_array_append (gargv, gargc, NULL);
176 argv = (char *const *) gargv;
179 memset (&cc, 0, sizeof (cc));
182 cc.task_cls = task_cls;
183 cc.cfg = cfg = GNUNET_CONFIGURATION_create ();
187 setlocale (LC_ALL, "");
188 path = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_LOCALEDIR);
191 BINDTEXTDOMAIN ("GNUnet", path);
194 textdomain ("GNUnet");
197 while (options[cnt].name != NULL)
200 GNUNET_malloc ((cnt +
201 1) * sizeof (struct GNUNET_GETOPT_CommandLineOption) +
202 sizeof (defoptions));
203 memcpy (allopts, defoptions, sizeof (defoptions));
205 [sizeof (defoptions) /
206 sizeof (struct GNUNET_GETOPT_CommandLineOption)], options,
207 (cnt + 1) * sizeof (struct GNUNET_GETOPT_CommandLineOption));
209 sizeof (defoptions) / sizeof (struct GNUNET_GETOPT_CommandLineOption);
210 qsort (allopts, cnt, sizeof (struct GNUNET_GETOPT_CommandLineOption),
212 loglev = GNUNET_strdup ("WARNING");
213 cc.cfgfile = GNUNET_strdup (GNUNET_DEFAULT_USER_CONFIG_FILE);
214 lpfx = GNUNET_strdup (binaryName);
215 if (NULL != (spc = strstr (lpfx, " ")))
217 if ((-1 == (ret = GNUNET_GETOPT_run (binaryName,
219 (unsigned int) argc, argv))) ||
221 GNUNET_log_setup (lpfx,
224 (GNUNET_OK != GNUNET_CONFIGURATION_load (cfg, cc.cfgfile))))
226 GNUNET_CONFIGURATION_destroy (cfg);
227 GNUNET_free_non_null (cc.cfgfile);
228 GNUNET_free (loglev);
229 GNUNET_free (allopts);
231 return GNUNET_SYSERR;
233 GNUNET_free (allopts);
235 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number(cc.cfg, "testing", "skew_offset", &skew_offset) &&
236 (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number(cc.cfg, "testing", "skew_variance", &skew_variance)))
238 clock_offset = skew_offset - skew_variance;
239 GNUNET_TIME_set_offset(clock_offset);
242 cc.args = &argv[ret];
243 GNUNET_SCHEDULER_run (&program_main, &cc);
246 GNUNET_CONFIGURATION_destroy (cfg);
247 GNUNET_free_non_null (cc.cfgfile);
248 GNUNET_free (loglev);
253 /* end of program.c */