Commit | Line | Data |
---|---|---|
826d496d MD |
1 | /* |
2 | * Copyright (c) 2011 David Goulet <david.goulet@polymtl.ca> | |
fac6795d DG |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify | |
d14d33bf AM |
5 | * it under the terms of the GNU General Public License, version 2 only, |
6 | * as published by the Free Software Foundation. | |
fac6795d DG |
7 | * |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License along | |
14 | * with this program; if not, write to the Free Software Foundation, Inc., | |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
fac6795d DG |
16 | */ |
17 | ||
18 | #define _GNU_SOURCE | |
fac6795d | 19 | #include <getopt.h> |
f3ed775e | 20 | #include <signal.h> |
fac6795d DG |
21 | #include <stdio.h> |
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
8db8d1dc DG |
24 | #include <sys/types.h> |
25 | #include <sys/wait.h> | |
fac6795d | 26 | #include <unistd.h> |
3bd1e081 | 27 | #include <config.h> |
730389d9 | 28 | #include <ctype.h> |
fac6795d | 29 | |
5b97ec60 | 30 | #include <lttng/lttng.h> |
db758600 | 31 | #include <common/error.h> |
fac6795d | 32 | |
c399183f | 33 | #include "command.h" |
fac6795d DG |
34 | |
35 | /* Variables */ | |
36 | static char *progname; | |
f3ed775e DG |
37 | static int opt_no_sessiond; |
38 | static char *opt_sessiond_path; | |
8db8d1dc | 39 | static pid_t sessiond_pid; |
5a532b68 | 40 | static volatile int recv_child_signal; |
f3ed775e DG |
41 | |
42 | enum { | |
f3ed775e | 43 | OPT_SESSION_PATH, |
865abf65 SM |
44 | OPT_DUMP_OPTIONS, |
45 | OPT_DUMP_COMMANDS, | |
f3ed775e DG |
46 | }; |
47 | ||
48 | /* Getopt options. No first level command. */ | |
49 | static struct option long_options[] = { | |
50 | {"help", 0, NULL, 'h'}, | |
51 | {"group", 1, NULL, 'g'}, | |
52 | {"verbose", 0, NULL, 'v'}, | |
53 | {"quiet", 0, NULL, 'q'}, | |
8490ae7b | 54 | {"no-sessiond", 0, NULL, 'n'}, |
f3ed775e | 55 | {"sessiond-path", 1, NULL, OPT_SESSION_PATH}, |
865abf65 SM |
56 | {"list-options", 0, NULL, OPT_DUMP_OPTIONS}, |
57 | {"list-commands", 0, NULL, OPT_DUMP_COMMANDS}, | |
f3ed775e DG |
58 | {NULL, 0, NULL, 0} |
59 | }; | |
60 | ||
61 | /* First level command */ | |
62 | static struct cmd_struct commands[] = { | |
63 | { "list", cmd_list}, | |
64 | { "create", cmd_create}, | |
65 | { "destroy", cmd_destroy}, | |
f3ed775e DG |
66 | { "start", cmd_start}, |
67 | { "stop", cmd_stop}, | |
68 | { "enable-event", cmd_enable_events}, | |
e953ef25 | 69 | { "disable-event", cmd_disable_events}, |
d36b8583 | 70 | { "enable-channel", cmd_enable_channels}, |
26cc6b4e | 71 | { "disable-channel", cmd_disable_channels}, |
d65106b1 | 72 | { "add-context", cmd_add_context}, |
3087ef18 | 73 | { "set-session", cmd_set_session}, |
eb9cb8b7 | 74 | { "version", cmd_version}, |
d0254c7c | 75 | { "calibrate", cmd_calibrate}, |
0c95f5b2 | 76 | { "view", cmd_view}, |
f3ed775e DG |
77 | { NULL, NULL} /* Array closure */ |
78 | }; | |
79 | ||
80 | static void usage(FILE *ofp) | |
8c0faa1d | 81 | { |
c6d4a597 | 82 | fprintf(ofp, "LTTng Trace Control " VERSION" - " VERSION_NAME"\n\n"); |
852fdd0c | 83 | fprintf(ofp, "usage: lttng [OPTIONS] <COMMAND>\n"); |
f3ed775e DG |
84 | fprintf(ofp, "\n"); |
85 | fprintf(ofp, "Options:\n"); | |
99bab54f TD |
86 | fprintf(ofp, " -h, --help Show this help\n"); |
87 | fprintf(ofp, " --list-options Simple listing of lttng options\n"); | |
88 | fprintf(ofp, " --list-commands Simple listing of lttng commands\n"); | |
89 | fprintf(ofp, " -v, --verbose Increase verbosity\n"); | |
90 | fprintf(ofp, " -q, --quiet Quiet mode\n"); | |
91 | fprintf(ofp, " -g, --group NAME Unix tracing group name. (default: tracing)\n"); | |
92 | fprintf(ofp, " -n, --no-sessiond Don't spawn a session daemon\n"); | |
93 | fprintf(ofp, " --sessiond-path PATH Session daemon full path\n"); | |
f3ed775e DG |
94 | fprintf(ofp, "\n"); |
95 | fprintf(ofp, "Commands:\n"); | |
852fdd0c | 96 | fprintf(ofp, " add-context Add context to event and/or channel\n"); |
d0254c7c | 97 | fprintf(ofp, " calibrate Quantify LTTng overhead\n"); |
f3ed775e | 98 | fprintf(ofp, " create Create tracing session\n"); |
852fdd0c | 99 | fprintf(ofp, " destroy Tear down tracing session\n"); |
d36b8583 | 100 | fprintf(ofp, " enable-channel Enable tracing channel\n"); |
26cc6b4e DG |
101 | fprintf(ofp, " enable-event Enable tracing event\n"); |
102 | fprintf(ofp, " disable-channel Disable tracing channel\n"); | |
f3ed775e DG |
103 | fprintf(ofp, " disable-event Disable tracing event\n"); |
104 | fprintf(ofp, " list List possible tracing options\n"); | |
3087ef18 | 105 | fprintf(ofp, " set-session Set current session name\n"); |
f3ed775e DG |
106 | fprintf(ofp, " start Start tracing\n"); |
107 | fprintf(ofp, " stop Stop tracing\n"); | |
108 | fprintf(ofp, " version Show version information\n"); | |
0c95f5b2 | 109 | fprintf(ofp, " view Start trace viewer\n"); |
f3ed775e | 110 | fprintf(ofp, "\n"); |
99bab54f TD |
111 | fprintf(ofp, "Each command also has its own -h, --help option.\n"); |
112 | fprintf(ofp, "\n"); | |
f3ed775e DG |
113 | fprintf(ofp, "Please see the lttng(1) man page for full documentation.\n"); |
114 | fprintf(ofp, "See http://lttng.org for updates, bug reports and news.\n"); | |
8c0faa1d DG |
115 | } |
116 | ||
865abf65 SM |
117 | /* |
118 | * list_options | |
119 | * | |
120 | * List options line by line. This is mostly for bash auto completion and to | |
121 | * avoid difficult parsing. | |
122 | */ | |
123 | static void list_options(FILE *ofp) | |
124 | { | |
125 | int i = 0; | |
126 | struct option *option = NULL; | |
127 | ||
128 | option = &long_options[i]; | |
129 | while (option->name != NULL) { | |
130 | fprintf(ofp, "--%s\n", option->name); | |
131 | ||
132 | if (isprint(option->val)) { | |
133 | fprintf(ofp, "-%c\n", option->val); | |
134 | } | |
135 | ||
136 | i++; | |
137 | option = &long_options[i]; | |
138 | } | |
139 | } | |
140 | ||
141 | /* | |
142 | * list_commands | |
143 | * | |
144 | * List commands line by line. This is mostly for bash auto completion and to | |
145 | * avoid difficult parsing. | |
146 | */ | |
147 | static void list_commands(FILE *ofp) | |
148 | { | |
149 | int i = 0; | |
150 | struct cmd_struct *cmd = NULL; | |
151 | ||
152 | cmd = &commands[i]; | |
153 | while (cmd->name != NULL) { | |
154 | fprintf(ofp, "%s\n", cmd->name); | |
155 | i++; | |
156 | cmd = &commands[i]; | |
157 | } | |
158 | } | |
159 | ||
7442b2ba | 160 | /* |
f3ed775e | 161 | * clean_exit |
96243366 | 162 | */ |
f3ed775e | 163 | static void clean_exit(int code) |
96243366 | 164 | { |
f3ed775e DG |
165 | DBG("Clean exit"); |
166 | exit(code); | |
894be886 | 167 | } |
96243366 | 168 | |
894be886 | 169 | /* |
f3ed775e | 170 | * sighandler |
2ef84c95 | 171 | * |
f3ed775e | 172 | * Signal handler for the daemon |
2ef84c95 | 173 | */ |
f3ed775e | 174 | static void sighandler(int sig) |
2ef84c95 | 175 | { |
8db8d1dc DG |
176 | int status; |
177 | ||
f3ed775e DG |
178 | switch (sig) { |
179 | case SIGTERM: | |
99bab54f | 180 | DBG("SIGTERM caught"); |
f3ed775e DG |
181 | clean_exit(EXIT_FAILURE); |
182 | break; | |
183 | case SIGCHLD: | |
99bab54f | 184 | DBG("SIGCHLD caught"); |
8db8d1dc | 185 | waitpid(sessiond_pid, &status, 0); |
5a532b68 | 186 | recv_child_signal = 1; |
8db8d1dc DG |
187 | /* Indicate that the session daemon died */ |
188 | sessiond_pid = 0; | |
189 | ERR("Session daemon died (exit status %d)", WEXITSTATUS(status)); | |
190 | break; | |
191 | case SIGUSR1: | |
192 | /* Notify is done */ | |
5a532b68 | 193 | recv_child_signal = 1; |
99bab54f | 194 | DBG("SIGUSR1 caught"); |
f3ed775e DG |
195 | break; |
196 | default: | |
99bab54f | 197 | DBG("Unknown signal %d caught", sig); |
f3ed775e | 198 | break; |
2ef84c95 DG |
199 | } |
200 | ||
f3ed775e | 201 | return; |
2ef84c95 DG |
202 | } |
203 | ||
204 | /* | |
f3ed775e | 205 | * set_signal_handler |
894be886 | 206 | * |
f3ed775e | 207 | * Setup signal handler for SIGCHLD and SIGTERM. |
894be886 | 208 | */ |
f3ed775e | 209 | static int set_signal_handler(void) |
894be886 | 210 | { |
f3ed775e DG |
211 | int ret = 0; |
212 | struct sigaction sa; | |
213 | sigset_t sigset; | |
33a2b854 | 214 | |
f3ed775e DG |
215 | if ((ret = sigemptyset(&sigset)) < 0) { |
216 | perror("sigemptyset"); | |
33a2b854 DG |
217 | goto end; |
218 | } | |
219 | ||
f3ed775e DG |
220 | sa.sa_handler = sighandler; |
221 | sa.sa_mask = sigset; | |
222 | sa.sa_flags = 0; | |
8db8d1dc | 223 | if ((ret = sigaction(SIGUSR1, &sa, NULL)) < 0) { |
f3ed775e | 224 | perror("sigaction"); |
96243366 DG |
225 | goto end; |
226 | } | |
227 | ||
f3ed775e DG |
228 | if ((ret = sigaction(SIGTERM, &sa, NULL)) < 0) { |
229 | perror("sigaction"); | |
230 | goto end; | |
894be886 DG |
231 | } |
232 | ||
8db8d1dc DG |
233 | if ((ret = sigaction(SIGCHLD, &sa, NULL)) < 0) { |
234 | perror("sigaction"); | |
235 | goto end; | |
236 | } | |
237 | ||
96243366 | 238 | end: |
57167058 DG |
239 | return ret; |
240 | } | |
241 | ||
fac6795d | 242 | /* |
f3ed775e | 243 | * handle_command |
fac6795d | 244 | * |
f3ed775e DG |
245 | * Handle the full argv list of a first level command. Will find the command |
246 | * in the global commands array and call the function callback associated. | |
1c9f7941 | 247 | * |
f3ed775e DG |
248 | * If command not found, return -1 |
249 | * else, return function command error code. | |
1c9f7941 | 250 | */ |
f3ed775e | 251 | static int handle_command(int argc, char **argv) |
1c9f7941 | 252 | { |
f3ed775e DG |
253 | int i = 0, ret; |
254 | struct cmd_struct *cmd; | |
1c9f7941 | 255 | |
f3ed775e DG |
256 | if (*argv == NULL) { |
257 | ret = CMD_SUCCESS; | |
47b74d63 | 258 | goto end; |
1c9f7941 DG |
259 | } |
260 | ||
f3ed775e DG |
261 | cmd = &commands[i]; |
262 | while (cmd->func != NULL) { | |
263 | /* Find command */ | |
264 | if (strcmp(argv[0], cmd->name) == 0) { | |
265 | ret = cmd->func(argc, (const char**) argv); | |
f3ed775e | 266 | goto end; |
894be886 | 267 | } |
f3ed775e DG |
268 | i++; |
269 | cmd = &commands[i]; | |
894be886 DG |
270 | } |
271 | ||
f3ed775e DG |
272 | /* Command not found */ |
273 | ret = -1; | |
894be886 DG |
274 | |
275 | end: | |
f3ed775e | 276 | return ret; |
8548ff30 DG |
277 | } |
278 | ||
5b8719f5 DG |
279 | /* |
280 | * spawn_sessiond | |
281 | * | |
282 | * Spawn a session daemon by forking and execv. | |
283 | */ | |
284 | static int spawn_sessiond(char *pathname) | |
285 | { | |
286 | int ret = 0; | |
287 | pid_t pid; | |
288 | ||
f3ed775e | 289 | MSG("Spawning a session daemon"); |
5a532b68 | 290 | recv_child_signal = 0; |
5b8719f5 DG |
291 | pid = fork(); |
292 | if (pid == 0) { | |
5e16da05 MD |
293 | /* |
294 | * Spawn session daemon and tell | |
5b8719f5 DG |
295 | * it to signal us when ready. |
296 | */ | |
32258573 | 297 | execlp(pathname, "lttng-sessiond", "--sig-parent", "--quiet", NULL); |
5e16da05 MD |
298 | /* execlp only returns if error happened */ |
299 | if (errno == ENOENT) { | |
300 | ERR("No session daemon found. Use --sessiond-path."); | |
301 | } else { | |
302 | perror("execlp"); | |
5b8719f5 | 303 | } |
5a532b68 | 304 | kill(getppid(), SIGTERM); /* wake parent */ |
5e16da05 | 305 | exit(EXIT_FAILURE); |
5b8719f5 | 306 | } else if (pid > 0) { |
8db8d1dc | 307 | sessiond_pid = pid; |
5a532b68 | 308 | /* |
af87c45a DG |
309 | * Wait for lttng-sessiond to start. We need to use a flag to check if |
310 | * the signal has been sent to us, because the child can be scheduled | |
311 | * before the parent, and thus send the signal before this check. In | |
312 | * the signal handler, we set the recv_child_signal flag, so anytime we | |
313 | * check it after the fork is fine. Note that sleep() is interrupted | |
314 | * before the 1 second delay as soon as the signal is received, so it | |
315 | * will not cause visible delay for the user. | |
5a532b68 MD |
316 | */ |
317 | while (!recv_child_signal) { | |
318 | sleep(1); | |
319 | } | |
af87c45a DG |
320 | /* |
321 | * The signal handler will nullify sessiond_pid on SIGCHLD | |
322 | */ | |
8db8d1dc DG |
323 | if (!sessiond_pid) { |
324 | exit(EXIT_FAILURE); | |
325 | } | |
5b8719f5 DG |
326 | goto end; |
327 | } else { | |
328 | perror("fork"); | |
329 | ret = -1; | |
330 | goto end; | |
331 | } | |
332 | ||
333 | end: | |
334 | return ret; | |
335 | } | |
336 | ||
fac6795d | 337 | /* |
f3ed775e | 338 | * check_sessiond |
fac6795d DG |
339 | * |
340 | * Check if the session daemon is available using | |
5b8719f5 DG |
341 | * the liblttngctl API for the check. If not, try to |
342 | * spawn a daemon. | |
fac6795d | 343 | */ |
f3ed775e | 344 | static int check_sessiond(void) |
fac6795d DG |
345 | { |
346 | int ret; | |
5e16da05 | 347 | char *pathname = NULL, *alloc_pathname = NULL; |
fac6795d | 348 | |
947308c4 DG |
349 | ret = lttng_session_daemon_alive(); |
350 | if (ret == 0) { /* not alive */ | |
5b8719f5 DG |
351 | /* Try command line option path */ |
352 | if (opt_sessiond_path != NULL) { | |
353 | ret = access(opt_sessiond_path, F_OK | X_OK); | |
354 | if (ret < 0) { | |
3183dbb0 | 355 | ERR("No such file or access denied: %s", opt_sessiond_path); |
5b8719f5 DG |
356 | goto end; |
357 | } | |
358 | pathname = opt_sessiond_path; | |
359 | } else { | |
360 | /* Try LTTNG_SESSIOND_PATH env variable */ | |
bbccc3d2 | 361 | pathname = getenv(DEFAULT_SESSIOND_PATH_ENV); |
5b8719f5 DG |
362 | } |
363 | ||
364 | /* Let's rock and roll */ | |
365 | if (pathname == NULL) { | |
32258573 | 366 | ret = asprintf(&alloc_pathname, INSTALL_BIN_PATH "/lttng-sessiond"); |
5b8719f5 | 367 | if (ret < 0) { |
3f5fa9ed | 368 | perror("asprintf spawn sessiond"); |
5b8719f5 DG |
369 | goto end; |
370 | } | |
5e16da05 | 371 | pathname = alloc_pathname; |
5b8719f5 DG |
372 | } |
373 | ||
374 | ret = spawn_sessiond(pathname); | |
5e16da05 | 375 | free(alloc_pathname); |
5b8719f5 | 376 | if (ret < 0) { |
3183dbb0 | 377 | ERR("Problem occurred when starting %s", pathname); |
5b8719f5 DG |
378 | goto end; |
379 | } | |
fac6795d DG |
380 | } |
381 | ||
5b8719f5 | 382 | end: |
fac6795d DG |
383 | return ret; |
384 | } | |
385 | ||
bcfa8a05 | 386 | /* |
679b4943 SM |
387 | * Check args for specific options that *must* not trigger a session daemon |
388 | * execution. | |
389 | * | |
390 | * Return 1 if match else 0. | |
bcfa8a05 | 391 | */ |
679b4943 | 392 | static int check_args_no_sessiond(int argc, char **argv) |
bcfa8a05 DG |
393 | { |
394 | int i; | |
395 | ||
396 | for (i = 0; i < argc; i++) { | |
ba2926ef MD |
397 | if ((strncmp(argv[i], "-h", sizeof("-h")) == 0) || |
398 | strncmp(argv[i], "--h", sizeof("--h")) == 0 || | |
3183dbb0 | 399 | strncmp(argv[i], "--list-options", sizeof("--list-options")) == 0 || |
4747a49b | 400 | strncmp(argv[i], "--list-commands", sizeof("--list-commands")) == 0 || |
0c95f5b2 DG |
401 | strncmp(argv[i], "version", sizeof("version")) == 0 || |
402 | strncmp(argv[i], "view", sizeof("view")) == 0) { | |
bcfa8a05 DG |
403 | return 1; |
404 | } | |
405 | } | |
406 | ||
407 | return 0; | |
408 | } | |
409 | ||
5b8719f5 | 410 | /* |
3183dbb0 | 411 | * Parse command line arguments. |
5b8719f5 | 412 | * |
3183dbb0 | 413 | * Return 0 if OK, else -1 |
5b8719f5 | 414 | */ |
f3ed775e | 415 | static int parse_args(int argc, char **argv) |
5b8719f5 | 416 | { |
f3ed775e | 417 | int opt, ret; |
5b8719f5 | 418 | |
f3ed775e DG |
419 | if (argc < 2) { |
420 | usage(stderr); | |
421 | clean_exit(EXIT_FAILURE); | |
5b8719f5 DG |
422 | } |
423 | ||
8490ae7b | 424 | while ((opt = getopt_long(argc, argv, "+hnvqg:", long_options, NULL)) != -1) { |
f3ed775e DG |
425 | switch (opt) { |
426 | case 'h': | |
3183dbb0 | 427 | usage(stdout); |
ae856491 | 428 | ret = 0; |
3183dbb0 | 429 | goto end; |
f3ed775e | 430 | case 'v': |
97e19046 | 431 | lttng_opt_verbose += 1; |
f3ed775e DG |
432 | break; |
433 | case 'q': | |
97e19046 | 434 | lttng_opt_quiet = 1; |
f3ed775e DG |
435 | break; |
436 | case 'g': | |
437 | lttng_set_tracing_group(optarg); | |
438 | break; | |
8490ae7b | 439 | case 'n': |
f3ed775e DG |
440 | opt_no_sessiond = 1; |
441 | break; | |
442 | case OPT_SESSION_PATH: | |
443 | opt_sessiond_path = strdup(optarg); | |
444 | break; | |
865abf65 SM |
445 | case OPT_DUMP_OPTIONS: |
446 | list_options(stdout); | |
447 | ret = 0; | |
3183dbb0 | 448 | goto end; |
865abf65 SM |
449 | case OPT_DUMP_COMMANDS: |
450 | list_commands(stdout); | |
451 | ret = 0; | |
3183dbb0 | 452 | goto end; |
f3ed775e DG |
453 | default: |
454 | usage(stderr); | |
ae856491 | 455 | ret = 1; |
f3ed775e DG |
456 | goto error; |
457 | } | |
5b8719f5 | 458 | } |
fac6795d | 459 | |
f3ed775e | 460 | /* If both options are specified, quiet wins */ |
97e19046 DG |
461 | if (lttng_opt_verbose && lttng_opt_quiet) { |
462 | lttng_opt_verbose = 0; | |
5b8719f5 DG |
463 | } |
464 | ||
f3ed775e | 465 | /* Spawn session daemon if needed */ |
679b4943 | 466 | if (opt_no_sessiond == 0 && check_args_no_sessiond(argc, argv) == 0 && |
bcfa8a05 | 467 | (check_sessiond() < 0)) { |
8005f29a | 468 | ret = 1; |
f3ed775e | 469 | goto error; |
5b8719f5 DG |
470 | } |
471 | ||
f3ed775e DG |
472 | /* No leftovers, print usage and quit */ |
473 | if ((argc - optind) == 0) { | |
474 | usage(stderr); | |
8005f29a | 475 | ret = 1; |
f3ed775e DG |
476 | goto error; |
477 | } | |
7442b2ba | 478 | |
f3ed775e DG |
479 | /* |
480 | * Handle leftovers which is a first level command with the trailing | |
481 | * options. | |
482 | */ | |
483 | ret = handle_command(argc - optind, argv + optind); | |
ae856491 DG |
484 | switch (ret) { |
485 | case CMD_WARNING: | |
486 | WARN("Some command(s) went wrong"); | |
487 | break; | |
488 | case CMD_ERROR: | |
489 | ERR("Command error"); | |
490 | break; | |
491 | case CMD_UNDEFINED: | |
492 | ERR("Undefined command"); | |
493 | break; | |
494 | case CMD_FATAL: | |
495 | ERR("Fatal error"); | |
496 | break; | |
497 | case -1: | |
498 | usage(stderr); | |
499 | ret = 1; | |
500 | break; | |
501 | case 0: | |
502 | break; | |
503 | default: | |
42224349 DG |
504 | if (ret < 0) { |
505 | ret = -ret; | |
506 | } | |
ae856491 | 507 | break; |
96243366 DG |
508 | } |
509 | ||
3183dbb0 | 510 | end: |
f3ed775e | 511 | error: |
ae856491 | 512 | return ret; |
fac6795d DG |
513 | } |
514 | ||
f3ed775e | 515 | |
fac6795d | 516 | /* |
5b8719f5 | 517 | * main |
fac6795d DG |
518 | */ |
519 | int main(int argc, char *argv[]) | |
520 | { | |
521 | int ret; | |
cbbb813a | 522 | char *user; |
fac6795d DG |
523 | |
524 | progname = argv[0] ? argv[0] : "lttng"; | |
525 | ||
99bab54f | 526 | /* For Mathieu Desnoyers a.k.a. Dr. Tracing */ |
cbbb813a DG |
527 | user = getenv("USER"); |
528 | if (user != NULL && ((strncmp(progname, "drtrace", 7) == 0 || | |
529 | strncmp("compudj", user, 7) == 0))) { | |
4666e71c | 530 | MSG("%c[%d;%dmWelcome back Dr Tracing!%c[%dm\n", 27,1,33,27,0); |
fac6795d | 531 | } |
cbbb813a | 532 | /* Thanks Mathieu */ |
fac6795d | 533 | |
5b8719f5 DG |
534 | ret = set_signal_handler(); |
535 | if (ret < 0) { | |
87378cf5 | 536 | clean_exit(ret); |
5b8719f5 DG |
537 | } |
538 | ||
f3ed775e | 539 | ret = parse_args(argc, argv); |
ae856491 DG |
540 | if (ret != 0) { |
541 | clean_exit(ret); | |
1fff1faa | 542 | } |
87378cf5 | 543 | |
fac6795d DG |
544 | return 0; |
545 | } |