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"
39 #define LOG(kind,...) GNUNET_log_from (kind, "util", __VA_ARGS__)
41 #define LOG_STRERROR_FILE(kind,syscall,filename) GNUNET_log_from_strerror_file (kind, "util", syscall, filename)
44 * Context for the command.
54 * Name of the configuration file used, can be NULL!
59 * Main function to run.
61 GNUNET_PROGRAM_Main task;
69 * Configuration to use.
71 const struct GNUNET_CONFIGURATION_Handle *cfg;
77 * Initial task called by the scheduler for each
78 * program. Runs the program-specific main task.
81 program_main (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
83 struct CommandContext *cc = cls;
85 GNUNET_RESOLVER_connect (cc->cfg);
86 cc->task (cc->task_cls, cc->args, cc->cfgfile, cc->cfg);
91 * Compare function for 'qsort' to sort command-line arguments by the
94 * @param a1 first command line option
95 * @param a2 second command line option
98 cmd_sorter (__const void *a1, __const void *a2)
100 __const struct GNUNET_GETOPT_CommandLineOption *c1 = a1;
101 __const struct GNUNET_GETOPT_CommandLineOption *c2 = a2;
103 if (toupper ((unsigned char) c1->shortName) >
104 toupper ((unsigned char) c2->shortName))
106 if (toupper ((unsigned char) c1->shortName) <
107 toupper ((unsigned char) c2->shortName))
109 if (c1->shortName > c2->shortName)
111 if (c1->shortName < c2->shortName)
118 * Run a standard GNUnet command startup sequence (initialize loggers
119 * and configuration, parse options).
121 * @param argc number of command line arguments
122 * @param argv command line arguments
123 * @param binaryName our expected name
124 * @param binaryHelp help text for the program
125 * @param options command line options
126 * @param task main function to run
127 * @param task_cls closure for task
128 * @return GNUNET_SYSERR on error, GNUNET_OK on success
131 GNUNET_PROGRAM_run (int argc, char *const *argv, const char *binaryName,
132 const char *binaryHelp,
133 const struct GNUNET_GETOPT_CommandLineOption *options,
134 GNUNET_PROGRAM_Main task, void *task_cls)
136 struct CommandContext cc;
142 unsigned long long skew_offset;
143 unsigned long long skew_variance;
144 long long clock_offset;
145 struct GNUNET_CONFIGURATION_Handle *cfg;
147 struct GNUNET_GETOPT_CommandLineOption defoptions[] = {
148 GNUNET_GETOPT_OPTION_CFG_FILE (&cc.cfgfile),
149 GNUNET_GETOPT_OPTION_HELP (binaryHelp),
150 GNUNET_GETOPT_OPTION_LOGLEVEL (&loglev),
151 GNUNET_GETOPT_OPTION_LOGFILE (&logfile),
152 GNUNET_GETOPT_OPTION_VERSION (PACKAGE_VERSION)
154 struct GNUNET_GETOPT_CommandLineOption *allopts;
160 gargs = getenv ("GNUNET_ARGS");
171 for (i = 0; i < argc; i++)
172 GNUNET_array_append (gargv, gargc, GNUNET_strdup (argv[i]));
173 cargs = GNUNET_strdup (gargs);
174 tok = strtok (cargs, " ");
177 GNUNET_array_append (gargv, gargc, GNUNET_strdup (tok));
178 tok = strtok (NULL, " ");
181 GNUNET_array_append (gargv, gargc, NULL);
182 argv = (char *const *) gargv;
185 memset (&cc, 0, sizeof (cc));
188 cc.task_cls = task_cls;
189 cc.cfg = cfg = GNUNET_CONFIGURATION_create ();
193 setlocale (LC_ALL, "");
194 path = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_LOCALEDIR);
197 BINDTEXTDOMAIN ("GNUnet", path);
200 textdomain ("GNUnet");
203 while (options[cnt].name != NULL)
206 GNUNET_malloc ((cnt +
207 1) * sizeof (struct GNUNET_GETOPT_CommandLineOption) +
208 sizeof (defoptions));
209 memcpy (allopts, defoptions, sizeof (defoptions));
211 [sizeof (defoptions) /
212 sizeof (struct GNUNET_GETOPT_CommandLineOption)], options,
213 (cnt + 1) * sizeof (struct GNUNET_GETOPT_CommandLineOption));
214 cnt += sizeof (defoptions) / sizeof (struct GNUNET_GETOPT_CommandLineOption);
215 qsort (allopts, cnt, sizeof (struct GNUNET_GETOPT_CommandLineOption),
218 cc.cfgfile = GNUNET_strdup (GNUNET_DEFAULT_USER_CONFIG_FILE);
219 lpfx = GNUNET_strdup (binaryName);
220 if (NULL != (spc = strstr (lpfx, " ")))
224 GNUNET_GETOPT_run (binaryName, allopts, (unsigned int) argc, argv))) ||
225 (GNUNET_OK != GNUNET_log_setup (lpfx, loglev, logfile)))
227 GNUNET_CONFIGURATION_destroy (cfg);
228 GNUNET_free_non_null (cc.cfgfile);
229 GNUNET_free_non_null (loglev);
230 GNUNET_free_non_null (logfile);
231 GNUNET_free (allopts);
233 return GNUNET_SYSERR;
235 (void) GNUNET_CONFIGURATION_load (cfg, cc.cfgfile);
236 GNUNET_free (allopts);
239 GNUNET_CONFIGURATION_get_value_number (cc.cfg, "testing", "skew_offset",
242 GNUNET_CONFIGURATION_get_value_number (cc.cfg, "testing",
243 "skew_variance", &skew_variance)))
245 clock_offset = skew_offset - skew_variance;
246 GNUNET_TIME_set_offset (clock_offset);
249 cc.args = &argv[ret];
250 GNUNET_SCHEDULER_run (&program_main, &cc);
253 GNUNET_CONFIGURATION_destroy (cfg);
254 GNUNET_free_non_null (cc.cfgfile);
255 GNUNET_free_non_null (loglev);
256 GNUNET_free_non_null (logfile);
261 /* end of program.c */