]>
Commit | Line | Data |
---|---|---|
ef416fc2 | 1 | /* |
b423cd4c | 2 | * "$Id: main.c 5157 2006-02-23 20:58:57Z mike $" |
ef416fc2 | 3 | * |
4 | * Scheduler main loop for the Common UNIX Printing System (CUPS). | |
5 | * | |
fa73b229 | 6 | * Copyright 1997-2006 by Easy Software Products, all rights reserved. |
ef416fc2 | 7 | * |
8 | * These coded instructions, statements, and computer programs are the | |
9 | * property of Easy Software Products and are protected by Federal | |
10 | * copyright law. Distribution and use rights are outlined in the file | |
11 | * "LICENSE" which should have been included with this file. If this | |
12 | * file is missing or damaged please contact Easy Software Products | |
13 | * at: | |
14 | * | |
15 | * Attn: CUPS Licensing Information | |
16 | * Easy Software Products | |
17 | * 44141 Airport View Drive, Suite 204 | |
18 | * Hollywood, Maryland 20636 USA | |
19 | * | |
20 | * Voice: (301) 373-9600 | |
21 | * EMail: cups-info@cups.org | |
22 | * WWW: http://www.cups.org | |
23 | * | |
24 | * Contents: | |
25 | * | |
26 | * main() - Main entry for the CUPS scheduler. | |
27 | * cupsdClosePipe() - Close a pipe as necessary. | |
28 | * cupsdOpenPipe() - Create a pipe which is closed on exec. | |
29 | * cupsdCatchChildSignals() - Catch SIGCHLD signals... | |
30 | * cupsdHoldSignals() - Hold child and termination signals. | |
31 | * cupsdIgnoreChildSignals() - Ignore SIGCHLD signals... | |
32 | * cupsdReleaseSignals() - Release signals for delivery. | |
33 | * cupsdSetString() - Set a string value. | |
34 | * cupsdSetStringf() - Set a formatted string value. | |
a4d04587 | 35 | * launchd_checkin() - Check-in with launchd and collect the |
36 | * listening fds. | |
37 | * launchd_reload() - Tell launchd to reload the configuration | |
38 | * file to pick up the new listening directives. | |
bd7854cb | 39 | * launchd_sync_conf() - Re-write the launchd(8) config file |
4400e98d | 40 | * org.cups.cupsd.plist based on cupsd.conf. |
ef416fc2 | 41 | * parent_handler() - Catch USR1/CHLD signals... |
42 | * process_children() - Process all dead children... | |
43 | * sigchld_handler() - Handle 'child' signals from old processes. | |
44 | * sighup_handler() - Handle 'hangup' signals to reconfigure the | |
45 | * scheduler. | |
46 | * sigterm_handler() - Handle 'terminate' signals that stop the | |
47 | * scheduler. | |
48 | * select_timeout() - Calculate the select timeout value. | |
49 | * usage() - Show scheduler usage. | |
50 | */ | |
51 | ||
52 | /* | |
53 | * Include necessary headers... | |
54 | */ | |
55 | ||
56 | #define _MAIN_C_ | |
57 | #include "cupsd.h" | |
58 | #include <sys/resource.h> | |
59 | #include <syslog.h> | |
60 | #include <grp.h> | |
61 | ||
a4d04587 | 62 | #ifdef HAVE_LAUNCH_H |
63 | # include <launch.h> | |
64 | # include <libgen.h> | |
65 | #endif /* HAVE_LAUNCH_H */ | |
66 | ||
ef416fc2 | 67 | #if defined(HAVE_MALLOC_H) && defined(HAVE_MALLINFO) |
68 | # include <malloc.h> | |
69 | #endif /* HAVE_MALLOC_H && HAVE_MALLINFO */ | |
fa73b229 | 70 | #ifdef HAVE_NOTIFY_H |
71 | # include <notify.h> | |
72 | #endif /* HAVE_NOTIFY_H */ | |
ef416fc2 | 73 | |
74 | ||
75 | /* | |
76 | * Local functions... | |
77 | */ | |
78 | ||
a4d04587 | 79 | #ifdef HAVE_LAUNCHD |
80 | static void launchd_checkin(void); | |
81 | static void launchd_reload(void); | |
82 | static int launchd_sync_conf(void); | |
83 | #endif /* HAVE_LAUNCHD */ | |
84 | ||
ef416fc2 | 85 | static void parent_handler(int sig); |
86 | static void process_children(void); | |
87 | static void sigchld_handler(int sig); | |
88 | static void sighup_handler(int sig); | |
89 | static void sigterm_handler(int sig); | |
90 | static long select_timeout(int fds); | |
a4d04587 | 91 | static void usage(int status); |
ef416fc2 | 92 | |
93 | ||
94 | /* | |
95 | * Local globals... | |
96 | */ | |
97 | ||
98 | static int parent_signal = 0; /* Set to signal number from child */ | |
99 | static int holdcount = 0; /* Number of times "hold" was called */ | |
100 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
101 | static sigset_t holdmask; /* Old POSIX signal mask */ | |
102 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
103 | static int dead_children = 0; /* Dead children? */ | |
104 | static int stop_scheduler = 0; /* Should the scheduler stop? */ | |
105 | ||
106 | ||
107 | /* | |
108 | * 'main()' - Main entry for the CUPS scheduler. | |
109 | */ | |
110 | ||
111 | int /* O - Exit status */ | |
bd7854cb | 112 | main(int argc, /* I - Number of command-line args */ |
ef416fc2 | 113 | char *argv[]) /* I - Command-line arguments */ |
114 | { | |
115 | int i; /* Looping var */ | |
116 | char *opt; /* Option character */ | |
117 | int fg; /* Run in the foreground */ | |
bd7854cb | 118 | int fds; /* Number of ready descriptors */ |
ef416fc2 | 119 | fd_set *input, /* Input set for select() */ |
120 | *output; /* Output set for select() */ | |
121 | cupsd_client_t *con; /* Current client */ | |
122 | cupsd_job_t *job; /* Current job */ | |
123 | cupsd_listener_t *lis; /* Current listener */ | |
124 | time_t current_time, /* Current time */ | |
a4d04587 | 125 | activity, /* Client activity timer */ |
ef416fc2 | 126 | browse_time, /* Next browse send time */ |
127 | senddoc_time, /* Send-Document time */ | |
128 | expire_time; /* Subscription expire time */ | |
ef416fc2 | 129 | time_t mallinfo_time; /* Malloc information time */ |
4400e98d | 130 | size_t string_count, /* String count */ |
131 | alloc_bytes, /* Allocated string bytes */ | |
132 | total_bytes; /* Total string bytes */ | |
ef416fc2 | 133 | struct timeval timeout; /* select() timeout */ |
134 | struct rlimit limit; /* Runtime limit */ | |
135 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
136 | struct sigaction action; /* Actions for POSIX signals */ | |
137 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
138 | #ifdef __sgi | |
139 | cups_file_t *fp; /* Fake lpsched lock file */ | |
140 | struct stat statbuf; /* Needed for checking lpsched FIFO */ | |
141 | #endif /* __sgi */ | |
a4d04587 | 142 | #if HAVE_LAUNCHD |
4400e98d | 143 | int launchd_idle_exit; |
a4d04587 | 144 | /* Idle exit on select timeout? */ |
145 | #endif /* HAVE_LAUNCHD */ | |
ef416fc2 | 146 | |
147 | ||
148 | /* | |
149 | * Check for command-line arguments... | |
150 | */ | |
151 | ||
4400e98d | 152 | fg = 0; |
ef416fc2 | 153 | |
154 | for (i = 1; i < argc; i ++) | |
155 | if (argv[i][0] == '-') | |
156 | for (opt = argv[i] + 1; *opt != '\0'; opt ++) | |
157 | switch (*opt) | |
158 | { | |
159 | case 'c' : /* Configuration file */ | |
160 | i ++; | |
161 | if (i >= argc) | |
a4d04587 | 162 | { |
163 | _cupsLangPuts(stderr, _("cupsd: Expected config filename " | |
164 | "after \"-c\" option!\n")); | |
165 | usage(1); | |
166 | } | |
ef416fc2 | 167 | |
168 | if (argv[i][0] == '/') | |
169 | { | |
170 | /* | |
171 | * Absolute directory... | |
172 | */ | |
173 | ||
174 | cupsdSetString(&ConfigurationFile, argv[i]); | |
175 | } | |
176 | else | |
177 | { | |
178 | /* | |
179 | * Relative directory... | |
180 | */ | |
181 | ||
09ec0018 | 182 | char *current; /* Current directory */ |
ef416fc2 | 183 | |
184 | ||
09ec0018 | 185 | /* |
186 | * Allocate a buffer for the current working directory to | |
187 | * reduce run-time stack usage; this approximates the | |
188 | * behavior of some implementations of getcwd() when they | |
189 | * are passed a NULL pointer. | |
190 | */ | |
191 | ||
192 | current = malloc(1024); | |
193 | getcwd(current, 1024); | |
194 | ||
ef416fc2 | 195 | cupsdSetStringf(&ConfigurationFile, "%s/%s", current, argv[i]); |
09ec0018 | 196 | |
197 | free(current); | |
ef416fc2 | 198 | } |
199 | break; | |
200 | ||
201 | case 'f' : /* Run in foreground... */ | |
202 | fg = 1; | |
203 | break; | |
204 | ||
bd7854cb | 205 | case 'F' : /* Run in foreground, but disconnect from terminal... */ |
ef416fc2 | 206 | fg = -1; |
207 | break; | |
208 | ||
a4d04587 | 209 | case 'h' : /* Show usage/help */ |
210 | usage(0); | |
211 | break; | |
212 | ||
213 | case 'l' : /* Started by launchd... */ | |
214 | #ifdef HAVE_LAUNCHD | |
4400e98d | 215 | Launchd = 1; |
a4d04587 | 216 | fg = 1; |
217 | #else | |
218 | _cupsLangPuts(stderr, _("cupsd: launchd(8) support not compiled " | |
219 | "in, running in normal mode.\n")); | |
220 | fg = 0; | |
221 | #endif /* HAVE_LAUNCHD */ | |
222 | break; | |
223 | ||
ef416fc2 | 224 | default : /* Unknown option */ |
a4d04587 | 225 | _cupsLangPrintf(stderr, _("cupsd: Unknown option \"%c\" - " |
226 | "aborting!\n"), *opt); | |
227 | usage(1); | |
ef416fc2 | 228 | break; |
229 | } | |
230 | else | |
231 | { | |
a4d04587 | 232 | _cupsLangPrintf(stderr, _("cupsd: Unknown argument \"%s\" - aborting!\n"), |
233 | argv[i]); | |
234 | usage(1); | |
ef416fc2 | 235 | } |
236 | ||
237 | if (!ConfigurationFile) | |
238 | cupsdSetString(&ConfigurationFile, CUPS_SERVERROOT "/cupsd.conf"); | |
239 | ||
240 | /* | |
241 | * If the user hasn't specified "-f", run in the background... | |
242 | */ | |
243 | ||
244 | if (!fg) | |
245 | { | |
246 | /* | |
247 | * Setup signal handlers for the parent... | |
248 | */ | |
249 | ||
250 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
251 | sigset(SIGUSR1, parent_handler); | |
252 | sigset(SIGCHLD, parent_handler); | |
253 | ||
254 | sigset(SIGHUP, SIG_IGN); | |
255 | #elif defined(HAVE_SIGACTION) | |
256 | memset(&action, 0, sizeof(action)); | |
257 | sigemptyset(&action.sa_mask); | |
258 | sigaddset(&action.sa_mask, SIGUSR1); | |
259 | action.sa_handler = parent_handler; | |
260 | sigaction(SIGUSR1, &action, NULL); | |
261 | sigaction(SIGCHLD, &action, NULL); | |
262 | ||
263 | sigemptyset(&action.sa_mask); | |
264 | action.sa_handler = SIG_IGN; | |
265 | sigaction(SIGHUP, &action, NULL); | |
266 | #else | |
267 | signal(SIGUSR1, parent_handler); | |
268 | signal(SIGCLD, parent_handler); | |
269 | ||
270 | signal(SIGHUP, SIG_IGN); | |
271 | #endif /* HAVE_SIGSET */ | |
272 | ||
273 | if (fork() > 0) | |
274 | { | |
275 | /* | |
276 | * OK, wait for the child to startup and send us SIGUSR1 or to crash | |
277 | * and the OS send us SIGCHLD... We also need to ignore SIGHUP which | |
278 | * might be sent by the init script to restart the scheduler... | |
279 | */ | |
280 | ||
281 | for (; parent_signal == 0;) | |
282 | sleep(1); | |
283 | ||
284 | if (parent_signal == SIGUSR1) | |
285 | return (0); | |
286 | ||
287 | if (wait(&i) < 0) | |
288 | { | |
289 | perror("cupsd"); | |
290 | return (1); | |
291 | } | |
292 | else if (WIFEXITED(i)) | |
293 | { | |
bd7854cb | 294 | fprintf(stderr, "cupsd: Child exited with status %d!\n", |
295 | WEXITSTATUS(i)); | |
ef416fc2 | 296 | return (2); |
297 | } | |
298 | else | |
299 | { | |
300 | fprintf(stderr, "cupsd: Child exited on signal %d!\n", WTERMSIG(i)); | |
301 | return (3); | |
302 | } | |
303 | } | |
304 | } | |
305 | ||
306 | if (fg < 1) | |
307 | { | |
308 | /* | |
309 | * Make sure we aren't tying up any filesystems... | |
310 | */ | |
311 | ||
312 | chdir("/"); | |
313 | ||
314 | #ifndef DEBUG | |
315 | /* | |
316 | * Disable core dumps... | |
317 | */ | |
318 | ||
319 | getrlimit(RLIMIT_CORE, &limit); | |
320 | limit.rlim_cur = 0; | |
321 | setrlimit(RLIMIT_CORE, &limit); | |
322 | ||
323 | /* | |
324 | * Disconnect from the controlling terminal... | |
325 | */ | |
326 | ||
327 | setsid(); | |
328 | ||
329 | /* | |
330 | * Close all open files... | |
331 | */ | |
332 | ||
333 | getrlimit(RLIMIT_NOFILE, &limit); | |
334 | ||
335 | for (i = 0; i < limit.rlim_cur; i ++) | |
336 | close(i); | |
337 | #endif /* DEBUG */ | |
338 | } | |
339 | ||
340 | /* | |
341 | * Set the timezone info... | |
342 | */ | |
343 | ||
344 | tzset(); | |
345 | ||
346 | #ifdef LC_TIME | |
347 | setlocale(LC_TIME, ""); | |
348 | #endif /* LC_TIME */ | |
349 | ||
350 | /* | |
351 | * Set the maximum number of files... | |
352 | */ | |
353 | ||
354 | getrlimit(RLIMIT_NOFILE, &limit); | |
355 | ||
356 | if (limit.rlim_max > CUPS_MAX_FDS) | |
357 | MaxFDs = CUPS_MAX_FDS; | |
358 | else | |
359 | MaxFDs = limit.rlim_max; | |
360 | ||
361 | limit.rlim_cur = MaxFDs; | |
362 | ||
363 | setrlimit(RLIMIT_NOFILE, &limit); | |
364 | ||
365 | /* | |
366 | * Allocate memory for the input and output sets... | |
367 | */ | |
368 | ||
369 | SetSize = (MaxFDs + 31) / 8 + 4; | |
370 | if (SetSize < sizeof(fd_set)) | |
371 | SetSize = sizeof(fd_set); | |
372 | ||
373 | InputSet = (fd_set *)calloc(1, SetSize); | |
374 | OutputSet = (fd_set *)calloc(1, SetSize); | |
375 | input = (fd_set *)calloc(1, SetSize); | |
376 | output = (fd_set *)calloc(1, SetSize); | |
377 | ||
378 | if (InputSet == NULL || OutputSet == NULL || input == NULL || output == NULL) | |
379 | { | |
380 | syslog(LOG_LPR, "Unable to allocate memory for select() sets - exiting!"); | |
381 | return (1); | |
382 | } | |
383 | ||
384 | /* | |
385 | * Read configuration... | |
386 | */ | |
387 | ||
388 | if (!cupsdReadConfiguration()) | |
389 | { | |
390 | syslog(LOG_LPR, "Unable to read configuration file \'%s\' - exiting!", | |
391 | ConfigurationFile); | |
392 | return (1); | |
393 | } | |
394 | ||
a4d04587 | 395 | #if HAVE_LAUNCHD |
4400e98d | 396 | if (Launchd) |
a4d04587 | 397 | { |
398 | /* | |
399 | * If we were started by launchd make sure the cupsd plist file contains the | |
400 | * same listeners as cupsd.conf; If it didn't then reload it before getting | |
401 | * the list of listening file descriptors... | |
402 | */ | |
403 | ||
404 | if (launchd_sync_conf()) | |
405 | { | |
406 | launchd_reload(); | |
407 | ||
408 | /* | |
409 | * Until rdar://3854821 is fixed we have to exit after the reload... | |
410 | */ | |
411 | ||
412 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "Exiting on launchd_reload"); | |
413 | exit(0); | |
414 | } | |
415 | ||
416 | launchd_checkin(); | |
417 | } | |
418 | #endif /* HAVE_LAUNCHD */ | |
419 | ||
420 | /* | |
421 | * Startup the server... | |
422 | */ | |
423 | ||
424 | cupsdStartServer(); | |
425 | ||
ef416fc2 | 426 | /* |
427 | * Catch hangup and child signals and ignore broken pipes... | |
428 | */ | |
429 | ||
430 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
431 | if (RunAsUser) | |
432 | sigset(SIGHUP, sigterm_handler); | |
433 | else | |
434 | sigset(SIGHUP, sighup_handler); | |
435 | ||
436 | sigset(SIGPIPE, SIG_IGN); | |
437 | sigset(SIGTERM, sigterm_handler); | |
438 | #elif defined(HAVE_SIGACTION) | |
439 | memset(&action, 0, sizeof(action)); | |
440 | ||
441 | sigemptyset(&action.sa_mask); | |
442 | sigaddset(&action.sa_mask, SIGHUP); | |
443 | ||
444 | if (RunAsUser) | |
445 | action.sa_handler = sigterm_handler; | |
446 | else | |
447 | action.sa_handler = sighup_handler; | |
448 | ||
449 | sigaction(SIGHUP, &action, NULL); | |
450 | ||
451 | sigemptyset(&action.sa_mask); | |
452 | action.sa_handler = SIG_IGN; | |
453 | sigaction(SIGPIPE, &action, NULL); | |
454 | ||
455 | sigemptyset(&action.sa_mask); | |
456 | sigaddset(&action.sa_mask, SIGTERM); | |
457 | sigaddset(&action.sa_mask, SIGCHLD); | |
458 | action.sa_handler = sigterm_handler; | |
459 | sigaction(SIGTERM, &action, NULL); | |
460 | #else | |
461 | if (RunAsUser) | |
462 | signal(SIGHUP, sigterm_handler); | |
463 | else | |
464 | signal(SIGHUP, sighup_handler); | |
465 | ||
466 | signal(SIGPIPE, SIG_IGN); | |
467 | signal(SIGTERM, sigterm_handler); | |
468 | #endif /* HAVE_SIGSET */ | |
469 | ||
470 | #ifdef __sgi | |
471 | /* | |
472 | * Try to create a fake lpsched lock file if one is not already there. | |
473 | * Some Adobe applications need it under IRIX in order to enable | |
474 | * printing... | |
475 | */ | |
476 | ||
477 | if ((fp = cupsFileOpen("/var/spool/lp/SCHEDLOCK", "w")) == NULL) | |
478 | { | |
479 | syslog(LOG_LPR, "Unable to create fake lpsched lock file " | |
480 | "\"/var/spool/lp/SCHEDLOCK\"\' - %s!", | |
481 | strerror(errno)); | |
482 | } | |
483 | else | |
484 | { | |
485 | fchmod(cupsFileNumber(fp), 0644); | |
486 | fchown(cupsFileNumber(fp), User, Group); | |
487 | ||
488 | cupsFileClose(fp); | |
489 | } | |
490 | #endif /* __sgi */ | |
491 | ||
492 | /* | |
493 | * Initialize authentication certificates... | |
494 | */ | |
495 | ||
496 | cupsdInitCerts(); | |
497 | ||
498 | /* | |
499 | * If we are running in the background, signal the parent process that | |
500 | * we are up and running... | |
501 | */ | |
502 | ||
503 | if (!fg) | |
504 | { | |
505 | /* | |
506 | * Send a signal to the parent process, but only if the parent is | |
507 | * not PID 1 (init). This avoids accidentally shutting down the | |
508 | * system on OpenBSD if you CTRL-C the server before it is up... | |
509 | */ | |
510 | ||
511 | i = getppid(); /* Save parent PID to avoid race condition */ | |
512 | ||
513 | if (i != 1) | |
514 | kill(i, SIGUSR1); | |
515 | } | |
516 | ||
09ec0018 | 517 | /* |
518 | * Start power management framework... | |
519 | */ | |
520 | ||
521 | cupsdStartSystemMonitor(); | |
522 | ||
ef416fc2 | 523 | /* |
524 | * If the administrator has configured the server to run as an unpriviledged | |
525 | * user, change to that user now... | |
526 | */ | |
527 | ||
528 | if (RunAsUser) | |
529 | { | |
530 | setgid(Group); | |
531 | setgroups(1, &Group); | |
532 | setuid(User); | |
533 | } | |
534 | ||
535 | /* | |
536 | * Catch signals... | |
537 | */ | |
538 | ||
539 | cupsdCatchChildSignals(); | |
540 | ||
541 | /* | |
542 | * Start any pending print jobs... | |
543 | */ | |
544 | ||
545 | cupsdCheckJobs(); | |
546 | ||
547 | /* | |
548 | * Loop forever... | |
549 | */ | |
550 | ||
ef416fc2 | 551 | mallinfo_time = 0; |
ef416fc2 | 552 | browse_time = time(NULL); |
553 | senddoc_time = time(NULL); | |
554 | expire_time = time(NULL); | |
555 | fds = 1; | |
556 | ||
557 | while (!stop_scheduler) | |
558 | { | |
559 | #ifdef DEBUG | |
560 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
561 | "main: Top of loop, dead_children=%d, NeedReload=%d", | |
562 | dead_children, NeedReload); | |
563 | #endif /* DEBUG */ | |
564 | ||
565 | /* | |
566 | * Check if there are dead children to handle... | |
567 | */ | |
568 | ||
569 | if (dead_children) | |
570 | process_children(); | |
571 | ||
572 | /* | |
573 | * Check if we need to load the server configuration file... | |
574 | */ | |
575 | ||
576 | if (NeedReload) | |
577 | { | |
578 | /* | |
579 | * Close any idle clients... | |
580 | */ | |
581 | ||
bd7854cb | 582 | if (cupsArrayCount(Clients) > 0) |
ef416fc2 | 583 | { |
bd7854cb | 584 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
585 | con; | |
586 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 587 | if (con->http.state == HTTP_WAITING) |
ef416fc2 | 588 | cupsdCloseClient(con); |
ef416fc2 | 589 | else |
590 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
591 | ||
592 | cupsdPauseListening(); | |
593 | } | |
594 | ||
595 | /* | |
596 | * Check for any active jobs... | |
597 | */ | |
598 | ||
599 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); | |
600 | job; | |
601 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
bd7854cb | 602 | if (job->state_value == IPP_JOB_PROCESSING) |
ef416fc2 | 603 | break; |
604 | ||
605 | /* | |
606 | * Restart if all clients are closed and all jobs finished, or | |
607 | * if the reload timeout has elapsed... | |
608 | */ | |
609 | ||
bd7854cb | 610 | if ((cupsArrayCount(Clients) == 0 && |
611 | (!job || NeedReload != RELOAD_ALL)) || | |
ef416fc2 | 612 | (time(NULL) - ReloadTime) >= ReloadTimeout) |
613 | { | |
a4d04587 | 614 | /* |
615 | * Shutdown the server... | |
616 | */ | |
617 | ||
618 | cupsdStopServer(); | |
619 | ||
620 | /* | |
621 | * Read configuration... | |
622 | */ | |
623 | ||
ef416fc2 | 624 | if (!cupsdReadConfiguration()) |
625 | { | |
626 | syslog(LOG_LPR, "Unable to read configuration file \'%s\' - exiting!", | |
627 | ConfigurationFile); | |
628 | break; | |
629 | } | |
a4d04587 | 630 | |
631 | #if HAVE_LAUNCHD | |
4400e98d | 632 | if (Launchd) |
a4d04587 | 633 | { |
634 | if (launchd_sync_conf()) | |
635 | { | |
636 | launchd_reload(); | |
637 | ||
638 | /* | |
639 | * Until rdar://3854821 is fixed we have to exit after the reload... | |
640 | */ | |
641 | ||
642 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "Exiting on launchd_reload"); | |
643 | stop_scheduler = 1; | |
644 | break; | |
645 | } | |
646 | ||
647 | launchd_checkin(); | |
648 | } | |
649 | #endif /* HAVE_LAUNCHD */ | |
650 | ||
651 | /* | |
652 | * Startup the server... | |
653 | */ | |
654 | ||
655 | cupsdStartServer(); | |
ef416fc2 | 656 | } |
657 | } | |
658 | ||
659 | /* | |
660 | * Check for available input or ready output. If select() returns | |
661 | * 0 or -1, something bad happened and we should exit immediately. | |
662 | * | |
663 | * Note that we at least have one listening socket open at all | |
664 | * times. | |
665 | */ | |
666 | ||
667 | memcpy(input, InputSet, SetSize); | |
668 | memcpy(output, OutputSet, SetSize); | |
669 | ||
670 | timeout.tv_sec = select_timeout(fds); | |
671 | timeout.tv_usec = 0; | |
672 | ||
a4d04587 | 673 | #if HAVE_LAUNCHD |
674 | /* | |
675 | * If no other work is scheduled and we're being controlled by | |
676 | * launchd(8) then timeout after 'LaunchdTimeout' seconds of | |
677 | * inactivity... | |
678 | */ | |
679 | ||
bd7854cb | 680 | if (timeout.tv_sec == 86400 && Launchd && LaunchdTimeout && |
a4d04587 | 681 | (!Browsing || !(BrowseLocalProtocols & BROWSE_DNSSD) || |
682 | cupsArrayCount(Printers) == 0)) | |
683 | { | |
684 | timeout.tv_sec = LaunchdTimeout; | |
685 | launchd_idle_exit = 1; | |
686 | } | |
687 | else | |
688 | launchd_idle_exit = 0; | |
689 | #endif /* HAVE_LAUNCHD */ | |
690 | ||
923edb68 | 691 | if (timeout.tv_sec < 86400) /* Only use timeout for < 1 day */ |
692 | fds = select(MaxFDs, input, output, NULL, &timeout); | |
693 | else | |
694 | fds = select(MaxFDs, input, output, NULL, NULL); | |
695 | ||
696 | if (fds < 0) | |
ef416fc2 | 697 | { |
698 | char s[16384], /* String buffer */ | |
699 | *sptr; /* Pointer into buffer */ | |
700 | int slen; /* Length of string buffer */ | |
701 | ||
702 | ||
703 | /* | |
704 | * Got an error from select! | |
705 | */ | |
706 | ||
707 | if (errno == EINTR) /* Just interrupted by a signal */ | |
708 | continue; | |
709 | ||
710 | /* | |
711 | * Log all sorts of debug info to help track down the problem. | |
712 | */ | |
713 | ||
714 | cupsdLogMessage(CUPSD_LOG_EMERG, "select() failed - %s!", | |
715 | strerror(errno)); | |
716 | ||
717 | strcpy(s, "InputSet ="); | |
718 | slen = 10; | |
719 | sptr = s + 10; | |
720 | ||
721 | for (i = 0; i < MaxFDs; i ++) | |
722 | if (FD_ISSET(i, InputSet)) | |
723 | { | |
724 | snprintf(sptr, sizeof(s) - slen, " %d", i); | |
725 | slen += strlen(sptr); | |
726 | sptr += strlen(sptr); | |
727 | } | |
728 | ||
729 | cupsdLogMessage(CUPSD_LOG_EMERG, s); | |
730 | ||
731 | strcpy(s, "OutputSet ="); | |
732 | slen = 11; | |
733 | sptr = s + 11; | |
734 | ||
735 | for (i = 0; i < MaxFDs; i ++) | |
736 | if (FD_ISSET(i, OutputSet)) | |
737 | { | |
738 | snprintf(sptr, sizeof(s) - slen, " %d", i); | |
739 | slen += strlen(sptr); | |
740 | sptr += strlen(sptr); | |
741 | } | |
742 | ||
743 | cupsdLogMessage(CUPSD_LOG_EMERG, s); | |
744 | ||
bd7854cb | 745 | for (i = 0, con = (cupsd_client_t *)cupsArrayFirst(Clients); |
746 | con; | |
747 | i ++, con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 748 | cupsdLogMessage(CUPSD_LOG_EMERG, |
749 | "Clients[%d] = %d, file = %d, state = %d", | |
750 | i, con->http.fd, con->file, con->http.state); | |
751 | ||
bd7854cb | 752 | for (i = 0, lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); |
753 | lis; | |
754 | i ++, lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
ef416fc2 | 755 | cupsdLogMessage(CUPSD_LOG_EMERG, "Listeners[%d] = %d", i, lis->fd); |
756 | ||
757 | cupsdLogMessage(CUPSD_LOG_EMERG, "BrowseSocket = %d", BrowseSocket); | |
758 | ||
923edb68 | 759 | cupsdLogMessage(CUPSD_LOG_EMERG, "CGIPipes[0] = %d", CGIPipes[0]); |
760 | ||
09ec0018 | 761 | #ifdef __APPLE__ |
762 | cupsdLogMessage(CUPSD_LOG_EMERG, "SysEventPipes[0] = %d", | |
763 | SysEventPipes[0]); | |
764 | #endif /* __APPLE__ */ | |
765 | ||
ef416fc2 | 766 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); |
767 | job; | |
768 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
769 | cupsdLogMessage(CUPSD_LOG_EMERG, "Jobs[%d] = %d < [%d %d] > [%d %d]", | |
770 | job->id, | |
771 | job->status_buffer ? job->status_buffer->fd : -1, | |
772 | job->print_pipes[0], job->print_pipes[1], | |
773 | job->back_pipes[0], job->back_pipes[1]); | |
774 | break; | |
775 | } | |
776 | ||
777 | current_time = time(NULL); | |
778 | ||
a4d04587 | 779 | #if HAVE_LAUNCHD |
780 | /* | |
781 | * If no other work was scheduled and we're being controlled by launchd(8) | |
782 | * then timeout after 'LaunchdTimeout' seconds of inactivity... | |
783 | */ | |
784 | ||
785 | if (!fds && launchd_idle_exit) | |
786 | { | |
787 | cupsdLogMessage(CUPSD_LOG_INFO, | |
788 | "Printer sharing is off and there are no jobs pending, " | |
789 | "will restart on demand."); | |
790 | stop_scheduler = 1; | |
791 | break; | |
792 | } | |
793 | #endif /* HAVE_LAUNCHD */ | |
794 | ||
ef416fc2 | 795 | /* |
796 | * Check for status info from job filters... | |
797 | */ | |
798 | ||
799 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); | |
800 | job; | |
801 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
802 | if (job->status_buffer && FD_ISSET(job->status_buffer->fd, input)) | |
803 | { | |
804 | /* | |
805 | * Clear the input bit to avoid updating the next job | |
806 | * using the same status pipe file descriptor... | |
807 | */ | |
808 | ||
809 | FD_CLR(job->status_buffer->fd, input); | |
810 | ||
811 | /* | |
812 | * Read any status messages from the filters... | |
813 | */ | |
814 | ||
815 | cupsdUpdateJob(job); | |
816 | } | |
817 | ||
818 | /* | |
819 | * Update CGI messages as needed... | |
820 | */ | |
821 | ||
822 | if (CGIPipes[0] >= 0 && FD_ISSET(CGIPipes[0], input)) | |
823 | cupsdUpdateCGI(); | |
824 | ||
09ec0018 | 825 | /* |
826 | * Handle system management events as needed... | |
827 | */ | |
828 | ||
829 | #ifdef __APPLE__ | |
830 | if (SysEventPipes[0] >= 0 && FD_ISSET(SysEventPipes[0], input)) | |
831 | cupsdUpdateSystemMonitor(); | |
832 | #endif /* __APPLE__ */ | |
833 | ||
ef416fc2 | 834 | /* |
835 | * Update notifier messages as needed... | |
836 | */ | |
837 | ||
838 | if (NotifierPipes[0] >= 0 && FD_ISSET(NotifierPipes[0], input)) | |
839 | cupsdUpdateNotifierStatus(); | |
840 | ||
841 | /* | |
bd7854cb | 842 | * Expire subscriptions and unload completed jobs as needed... |
ef416fc2 | 843 | */ |
844 | ||
bd7854cb | 845 | if (current_time > expire_time) |
ef416fc2 | 846 | { |
bd7854cb | 847 | if (cupsArrayCount(Subscriptions) > 0) |
848 | cupsdExpireSubscriptions(NULL, NULL); | |
849 | ||
850 | cupsdUnloadCompletedJobs(); | |
ef416fc2 | 851 | |
852 | expire_time = current_time; | |
853 | } | |
854 | ||
855 | /* | |
856 | * Update the browse list as needed... | |
857 | */ | |
858 | ||
fa73b229 | 859 | if (Browsing && BrowseRemoteProtocols) |
ef416fc2 | 860 | { |
861 | if (BrowseSocket >= 0 && FD_ISSET(BrowseSocket, input)) | |
862 | cupsdUpdateCUPSBrowse(); | |
863 | ||
864 | if (PollPipe >= 0 && FD_ISSET(PollPipe, input)) | |
865 | cupsdUpdatePolling(); | |
866 | ||
867 | #ifdef HAVE_LIBSLP | |
b423cd4c | 868 | if ((BrowseRemoteProtocols & BROWSE_SLP) && |
ef416fc2 | 869 | BrowseSLPRefresh <= current_time) |
870 | cupsdUpdateSLPBrowse(); | |
871 | #endif /* HAVE_LIBSLP */ | |
b423cd4c | 872 | |
873 | #ifdef HAVE_LDAP | |
874 | if ((BrowseRemoteProtocols & BROWSE_LDAP) && | |
875 | BrowseLDAPRefresh <= current_time) | |
876 | cupsdUpdateLDAPBrowse(); | |
877 | #endif /* HAVE_LDAP */ | |
fa73b229 | 878 | } |
ef416fc2 | 879 | |
fa73b229 | 880 | if (Browsing && BrowseLocalProtocols && current_time > browse_time) |
881 | { | |
882 | cupsdSendBrowseList(); | |
883 | browse_time = current_time; | |
ef416fc2 | 884 | } |
885 | ||
886 | /* | |
887 | * Check for new connections on the "listen" sockets... | |
888 | */ | |
889 | ||
bd7854cb | 890 | for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); |
891 | lis; | |
892 | lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
ef416fc2 | 893 | if (lis->fd >= 0 && FD_ISSET(lis->fd, input)) |
894 | { | |
895 | FD_CLR(lis->fd, input); | |
896 | cupsdAcceptClient(lis); | |
897 | } | |
898 | ||
899 | /* | |
900 | * Check for new data on the client sockets... | |
901 | */ | |
902 | ||
bd7854cb | 903 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
904 | con; | |
905 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 906 | { |
907 | /* | |
908 | * Process the input buffer... | |
909 | */ | |
910 | ||
911 | if (FD_ISSET(con->http.fd, input) || con->http.used) | |
912 | { | |
bd7854cb | 913 | int fd = con->file; |
914 | ||
915 | ||
ef416fc2 | 916 | FD_CLR(con->http.fd, input); |
917 | ||
918 | if (!cupsdReadClient(con)) | |
919 | { | |
bd7854cb | 920 | if (fd >= 0) |
921 | FD_CLR(fd, input); | |
ef416fc2 | 922 | |
ef416fc2 | 923 | continue; |
924 | } | |
925 | } | |
926 | ||
927 | /* | |
928 | * Write data as needed... | |
929 | */ | |
930 | ||
931 | if (con->pipe_pid && FD_ISSET(con->file, input)) | |
932 | { | |
933 | /* | |
934 | * Keep track of pending input from the file/pipe separately | |
935 | * so that we don't needlessly spin on select() when the web | |
936 | * client is not ready to receive data... | |
937 | */ | |
938 | ||
939 | FD_CLR(con->file, input); | |
940 | con->file_ready = 1; | |
941 | ||
942 | #ifdef DEBUG | |
943 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "main: Data ready file %d!", | |
944 | con->file); | |
945 | #endif /* DEBUG */ | |
946 | ||
947 | if (!FD_ISSET(con->http.fd, output)) | |
948 | { | |
949 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
950 | "main: Removing fd %d from InputSet...", con->file); | |
923edb68 | 951 | FD_CLR(con->file, input); |
ef416fc2 | 952 | FD_CLR(con->file, InputSet); |
953 | } | |
954 | } | |
955 | ||
956 | if (FD_ISSET(con->http.fd, output)) | |
957 | { | |
958 | FD_CLR(con->http.fd, output); | |
959 | ||
960 | if (!con->pipe_pid || con->file_ready) | |
961 | if (!cupsdWriteClient(con)) | |
ef416fc2 | 962 | continue; |
ef416fc2 | 963 | } |
964 | ||
965 | /* | |
966 | * Check the activity and close old clients... | |
967 | */ | |
968 | ||
969 | activity = current_time - Timeout; | |
970 | if (con->http.activity < activity && !con->pipe_pid) | |
971 | { | |
972 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
973 | "Closing client %d after %d seconds of inactivity...", | |
974 | con->http.fd, Timeout); | |
975 | ||
976 | cupsdCloseClient(con); | |
ef416fc2 | 977 | continue; |
978 | } | |
979 | } | |
980 | ||
981 | /* | |
982 | * Update any pending multi-file documents... | |
983 | */ | |
984 | ||
985 | if ((current_time - senddoc_time) >= 10) | |
986 | { | |
987 | cupsdCheckJobs(); | |
988 | senddoc_time = current_time; | |
989 | } | |
990 | ||
ef416fc2 | 991 | /* |
992 | * Log memory usage every minute... | |
993 | */ | |
994 | ||
bd7854cb | 995 | if ((current_time - mallinfo_time) >= 60 && LogLevel >= CUPSD_LOG_DEBUG2) |
ef416fc2 | 996 | { |
4400e98d | 997 | #ifdef HAVE_MALLINFO |
ef416fc2 | 998 | struct mallinfo mem; /* Malloc information */ |
999 | ||
1000 | ||
1001 | mem = mallinfo(); | |
bd7854cb | 1002 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
ef416fc2 | 1003 | "mallinfo: arena = %d, used = %d, free = %d\n", |
1004 | mem.arena, mem.usmblks + mem.uordblks, | |
1005 | mem.fsmblks + mem.fordblks); | |
4400e98d | 1006 | #endif /* HAVE_MALLINFO */ |
1007 | ||
1008 | string_count = _cups_sp_statistics(&alloc_bytes, &total_bytes); | |
bd7854cb | 1009 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
4400e98d | 1010 | "stringpool: " CUPS_LLFMT " strings, " |
1011 | CUPS_LLFMT " allocated, " CUPS_LLFMT " total bytes", | |
1012 | CUPS_LLCAST string_count, CUPS_LLCAST alloc_bytes, | |
1013 | CUPS_LLCAST total_bytes); | |
1014 | ||
ef416fc2 | 1015 | mallinfo_time = current_time; |
1016 | } | |
ef416fc2 | 1017 | |
1018 | /* | |
1019 | * Update the root certificate once every 5 minutes... | |
1020 | */ | |
1021 | ||
1022 | if ((current_time - RootCertTime) >= RootCertDuration && RootCertDuration && | |
1023 | !RunUser) | |
1024 | { | |
1025 | /* | |
1026 | * Update the root certificate... | |
1027 | */ | |
1028 | ||
1029 | cupsdDeleteCert(0); | |
1030 | cupsdAddCert(0, "root"); | |
1031 | } | |
fa73b229 | 1032 | |
1033 | /* | |
1034 | * Handle OS-specific event notification for any events that have | |
1035 | * accumulated. Don't send these more than once a second... | |
1036 | */ | |
1037 | ||
1038 | if (LastEvent && (time(NULL) - LastEventTime) > 1) | |
1039 | { | |
1040 | #ifdef HAVE_NOTIFY_POST | |
1041 | if (LastEvent & CUPSD_EVENT_PRINTER_CHANGED) | |
1042 | { | |
e00b005a | 1043 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1044 | "notify_post(\"com.apple.printerListChange\")"); |
1045 | notify_post("com.apple.printerListChange"); | |
1046 | } | |
1047 | ||
1048 | if (LastEvent & CUPSD_EVENT_PRINTER_STATE_CHANGED) | |
1049 | { | |
e00b005a | 1050 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1051 | "notify_post(\"com.apple.printerHistoryChange\")"); |
1052 | notify_post("com.apple.printerHistoryChange"); | |
1053 | } | |
1054 | ||
1055 | if (LastEvent & (CUPSD_EVENT_JOB_STATE_CHANGED | | |
1056 | CUPSD_EVENT_JOB_CONFIG_CHANGED | | |
1057 | CUPSD_EVENT_JOB_PROGRESS)) | |
1058 | { | |
e00b005a | 1059 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1060 | "notify_post(\"com.apple.jobChange\")"); |
1061 | notify_post("com.apple.jobChange"); | |
1062 | } | |
1063 | #endif /* HAVE_NOTIFY_POST */ | |
1064 | ||
1065 | /* | |
1066 | * Reset the accumulated events and notification time... | |
1067 | */ | |
1068 | ||
1069 | LastEventTime = time(NULL); | |
1070 | LastEvent = CUPSD_EVENT_NONE; | |
1071 | } | |
ef416fc2 | 1072 | } |
1073 | ||
1074 | /* | |
1075 | * Log a message based on what happened... | |
1076 | */ | |
1077 | ||
1078 | if (stop_scheduler) | |
1079 | cupsdLogMessage(CUPSD_LOG_INFO, "Scheduler shutting down normally."); | |
1080 | else | |
1081 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1082 | "Scheduler shutting down due to program error."); | |
1083 | ||
1084 | /* | |
1085 | * Close all network clients and stop all jobs... | |
1086 | */ | |
1087 | ||
1088 | cupsdStopServer(); | |
1089 | ||
bd7854cb | 1090 | cupsdFreeAllJobs(); |
ef416fc2 | 1091 | |
09ec0018 | 1092 | cupsdStopSystemMonitor(); |
1093 | ||
a4d04587 | 1094 | #ifdef HAVE_LAUNCHD |
1095 | /* | |
1096 | * Update the launchd config file as needed... | |
1097 | */ | |
1098 | ||
1099 | launchd_sync_conf(); | |
1100 | #endif /* HAVE_LAUNCHD */ | |
1101 | ||
ef416fc2 | 1102 | #ifdef __sgi |
1103 | /* | |
1104 | * Remove the fake IRIX lpsched lock file, but only if the existing | |
1105 | * file is not a FIFO which indicates that the real IRIX lpsched is | |
1106 | * running... | |
1107 | */ | |
1108 | ||
1109 | if (!stat("/var/spool/lp/FIFO", &statbuf)) | |
1110 | if (!S_ISFIFO(statbuf.st_mode)) | |
1111 | unlink("/var/spool/lp/SCHEDLOCK"); | |
1112 | #endif /* __sgi */ | |
1113 | ||
1114 | /* | |
1115 | * Free memory used by FD sets and return... | |
1116 | */ | |
1117 | ||
1118 | free(InputSet); | |
1119 | free(OutputSet); | |
1120 | free(input); | |
1121 | free(output); | |
1122 | ||
1123 | return (!stop_scheduler); | |
1124 | } | |
1125 | ||
1126 | ||
1127 | /* | |
1128 | * 'cupsdClosePipe()' - Close a pipe as necessary. | |
1129 | */ | |
1130 | ||
1131 | void | |
1132 | cupsdClosePipe(int *fds) /* I - Pipe file descriptors (2) */ | |
1133 | { | |
1134 | /* | |
1135 | * Close file descriptors as needed... | |
1136 | */ | |
1137 | ||
1138 | if (fds[0] >= 0) | |
1139 | { | |
1140 | close(fds[0]); | |
1141 | fds[0] = -1; | |
1142 | } | |
1143 | ||
1144 | if (fds[1] >= 0) | |
1145 | { | |
1146 | close(fds[1]); | |
1147 | fds[1] = -1; | |
1148 | } | |
1149 | } | |
1150 | ||
1151 | ||
1152 | /* | |
1153 | * 'cupsdOpenPipe()' - Create a pipe which is closed on exec. | |
1154 | */ | |
1155 | ||
1156 | int /* O - 0 on success, -1 on error */ | |
1157 | cupsdOpenPipe(int *fds) /* O - Pipe file descriptors (2) */ | |
1158 | { | |
1159 | /* | |
1160 | * Create the pipe... | |
1161 | */ | |
1162 | ||
1163 | if (pipe(fds)) | |
1164 | return (-1); | |
1165 | ||
1166 | /* | |
1167 | * Set the "close on exec" flag on each end of the pipe... | |
1168 | */ | |
1169 | ||
1170 | if (fcntl(fds[0], F_SETFD, fcntl(fds[0], F_GETFD) | FD_CLOEXEC)) | |
1171 | { | |
1172 | close(fds[0]); | |
1173 | close(fds[1]); | |
1174 | return (-1); | |
1175 | } | |
1176 | ||
1177 | if (fcntl(fds[1], F_SETFD, fcntl(fds[1], F_GETFD) | FD_CLOEXEC)) | |
1178 | { | |
1179 | close(fds[0]); | |
1180 | close(fds[1]); | |
1181 | return (-1); | |
1182 | } | |
1183 | ||
1184 | /* | |
1185 | * Return 0 indicating success... | |
1186 | */ | |
1187 | ||
1188 | return (0); | |
1189 | } | |
1190 | ||
1191 | ||
1192 | /* | |
1193 | * 'cupsdCatchChildSignals()' - Catch SIGCHLD signals... | |
1194 | */ | |
1195 | ||
1196 | void | |
1197 | cupsdCatchChildSignals(void) | |
1198 | { | |
1199 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
1200 | struct sigaction action; /* Actions for POSIX signals */ | |
1201 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
1202 | ||
1203 | ||
1204 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
1205 | sigset(SIGCHLD, sigchld_handler); | |
1206 | #elif defined(HAVE_SIGACTION) | |
1207 | memset(&action, 0, sizeof(action)); | |
1208 | ||
1209 | sigemptyset(&action.sa_mask); | |
1210 | sigaddset(&action.sa_mask, SIGTERM); | |
1211 | sigaddset(&action.sa_mask, SIGCHLD); | |
1212 | action.sa_handler = sigchld_handler; | |
1213 | sigaction(SIGCHLD, &action, NULL); | |
1214 | #else | |
1215 | signal(SIGCLD, sigchld_handler); /* No, SIGCLD isn't a typo... */ | |
1216 | #endif /* HAVE_SIGSET */ | |
1217 | } | |
1218 | ||
1219 | ||
1220 | /* | |
1221 | * 'cupsdClearString()' - Clear a string. | |
1222 | */ | |
1223 | ||
1224 | void | |
1225 | cupsdClearString(char **s) /* O - String value */ | |
1226 | { | |
1227 | if (s && *s) | |
1228 | { | |
1229 | free(*s); | |
1230 | *s = NULL; | |
1231 | } | |
1232 | } | |
1233 | ||
1234 | ||
1235 | /* | |
1236 | * 'cupsdHoldSignals()' - Hold child and termination signals. | |
1237 | */ | |
1238 | ||
1239 | void | |
1240 | cupsdHoldSignals(void) | |
1241 | { | |
1242 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
1243 | sigset_t newmask; /* New POSIX signal mask */ | |
1244 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
1245 | ||
1246 | ||
1247 | holdcount ++; | |
1248 | if (holdcount > 1) | |
1249 | return; | |
1250 | ||
1251 | #ifdef HAVE_SIGSET | |
1252 | sighold(SIGTERM); | |
1253 | sighold(SIGCHLD); | |
1254 | #elif defined(HAVE_SIGACTION) | |
1255 | sigemptyset(&newmask); | |
1256 | sigaddset(&newmask, SIGTERM); | |
1257 | sigaddset(&newmask, SIGCHLD); | |
1258 | sigprocmask(SIG_BLOCK, &newmask, &holdmask); | |
1259 | #endif /* HAVE_SIGSET */ | |
1260 | } | |
1261 | ||
1262 | ||
1263 | /* | |
1264 | * 'cupsdIgnoreChildSignals()' - Ignore SIGCHLD signals... | |
1265 | * | |
1266 | * We don't really ignore them, we set the signal handler to SIG_DFL, | |
1267 | * since some OS's rely on signals for the wait4() function to work. | |
1268 | */ | |
1269 | ||
1270 | void | |
1271 | cupsdIgnoreChildSignals(void) | |
1272 | { | |
1273 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
1274 | struct sigaction action; /* Actions for POSIX signals */ | |
1275 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
1276 | ||
1277 | ||
1278 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
1279 | sigset(SIGCHLD, SIG_DFL); | |
1280 | #elif defined(HAVE_SIGACTION) | |
1281 | memset(&action, 0, sizeof(action)); | |
1282 | ||
1283 | sigemptyset(&action.sa_mask); | |
1284 | sigaddset(&action.sa_mask, SIGCHLD); | |
1285 | action.sa_handler = SIG_DFL; | |
1286 | sigaction(SIGCHLD, &action, NULL); | |
1287 | #else | |
1288 | signal(SIGCLD, SIG_DFL); /* No, SIGCLD isn't a typo... */ | |
1289 | #endif /* HAVE_SIGSET */ | |
1290 | } | |
1291 | ||
1292 | ||
1293 | /* | |
1294 | * 'cupsdReleaseSignals()' - Release signals for delivery. | |
1295 | */ | |
1296 | ||
1297 | void | |
1298 | cupsdReleaseSignals(void) | |
1299 | { | |
1300 | holdcount --; | |
1301 | if (holdcount > 0) | |
1302 | return; | |
1303 | ||
1304 | #ifdef HAVE_SIGSET | |
1305 | sigrelse(SIGTERM); | |
1306 | sigrelse(SIGCHLD); | |
1307 | #elif defined(HAVE_SIGACTION) | |
1308 | sigprocmask(SIG_SETMASK, &holdmask, NULL); | |
1309 | #endif /* HAVE_SIGSET */ | |
1310 | } | |
1311 | ||
1312 | ||
1313 | /* | |
1314 | * 'cupsdSetString()' - Set a string value. | |
1315 | */ | |
1316 | ||
1317 | void | |
1318 | cupsdSetString(char **s, /* O - New string */ | |
1319 | const char *v) /* I - String value */ | |
1320 | { | |
1321 | if (!s || *s == v) | |
1322 | return; | |
1323 | ||
1324 | if (*s) | |
1325 | free(*s); | |
1326 | ||
1327 | if (v) | |
1328 | *s = strdup(v); | |
1329 | else | |
1330 | *s = NULL; | |
1331 | } | |
1332 | ||
1333 | ||
1334 | /* | |
1335 | * 'cupsdSetStringf()' - Set a formatted string value. | |
1336 | */ | |
1337 | ||
1338 | void | |
1339 | cupsdSetStringf(char **s, /* O - New string */ | |
1340 | const char *f, /* I - Printf-style format string */ | |
1341 | ...) /* I - Additional args as needed */ | |
1342 | { | |
1343 | char v[4096]; /* Formatting string value */ | |
1344 | va_list ap; /* Argument pointer */ | |
1345 | char *olds; /* Old string */ | |
1346 | ||
1347 | ||
1348 | if (!s) | |
1349 | return; | |
1350 | ||
1351 | olds = *s; | |
1352 | ||
1353 | if (f) | |
1354 | { | |
1355 | va_start(ap, f); | |
1356 | vsnprintf(v, sizeof(v), f, ap); | |
1357 | va_end(ap); | |
1358 | ||
1359 | *s = strdup(v); | |
1360 | } | |
1361 | else | |
1362 | *s = NULL; | |
1363 | ||
1364 | if (olds) | |
1365 | free(olds); | |
1366 | } | |
1367 | ||
1368 | ||
a4d04587 | 1369 | #ifdef HAVE_LAUNCHD |
1370 | /* | |
1371 | * 'launchd_checkin()' - Check-in with launchd and collect the listening fds. | |
1372 | */ | |
1373 | ||
1374 | static void | |
1375 | launchd_checkin(void) | |
1376 | { | |
1377 | int i, /* Looping var */ | |
bd7854cb | 1378 | count, /* Numebr of listeners */ |
a4d04587 | 1379 | portnum; /* Port number */ |
1380 | launch_data_t ld_msg, /* Launch data message */ | |
1381 | ld_resp, /* Launch data response */ | |
1382 | ld_array, /* Launch data array */ | |
1383 | ld_sockets, /* Launch data sockets dictionary */ | |
1384 | ld_runatload, /* Run-at-load setting */ | |
1385 | tmp; /* Launch data */ | |
1386 | cupsd_listener_t *lis; /* Listeners array */ | |
1387 | http_addr_t addr; /* Address variable */ | |
1388 | socklen_t addrlen; /* Length of address */ | |
1389 | bool runatload; /* Run-at-load setting value */ | |
1390 | ||
1391 | ||
1392 | cupsdLogMessage(CUPSD_LOG_DEBUG, "launchd_checkin: pid=%d", (int)getpid()); | |
1393 | ||
1394 | /* | |
1395 | * Check-in with launchd... | |
1396 | */ | |
1397 | ||
1398 | ld_msg = launch_data_new_string(LAUNCH_KEY_CHECKIN); | |
1399 | if ((ld_resp = launch_msg(ld_msg)) == NULL) | |
1400 | { | |
bd7854cb | 1401 | cupsdLogMessage(CUPSD_LOG_ERROR, |
a4d04587 | 1402 | "launchd_checkin: launch_msg(\"" LAUNCH_KEY_CHECKIN |
1403 | "\") IPC failure"); | |
1404 | exit(EXIT_FAILURE); | |
1405 | } | |
bd7854cb | 1406 | |
a4d04587 | 1407 | if (launch_data_get_type(ld_resp) == LAUNCH_DATA_ERRNO) |
1408 | { | |
1409 | errno = launch_data_get_errno(ld_resp); | |
1410 | cupsdLogMessage(CUPSD_LOG_ERROR, "launchd_checkin: Check-in failed: %s", | |
1411 | strerror(errno)); | |
1412 | exit(EXIT_FAILURE); | |
1413 | } | |
1414 | ||
1415 | /* | |
1416 | * Get the "run-at-load" setting... | |
1417 | */ | |
1418 | ||
bd7854cb | 1419 | if ((ld_runatload = |
1420 | launch_data_dict_lookup(ld_resp, LAUNCH_JOBKEY_RUNATLOAD)) != NULL && | |
a4d04587 | 1421 | launch_data_get_type(ld_runatload) == LAUNCH_DATA_BOOL) |
1422 | runatload = launch_data_get_bool(ld_runatload); | |
1423 | else | |
1424 | { | |
1425 | errno = launch_data_get_errno(ld_resp); | |
1426 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1427 | "launchd_checkin: Unable to find Run-at-load setting: %s", | |
1428 | strerror(errno)); | |
1429 | exit(EXIT_FAILURE); | |
1430 | } | |
1431 | ||
1432 | cupsdLogMessage(CUPSD_LOG_DEBUG, "launchd_checkin: Run-at-load=%s", | |
1433 | runatload ? "true" : "false"); | |
1434 | ||
1435 | /* | |
1436 | * Get the sockets dictionary... | |
1437 | */ | |
1438 | ||
1439 | if (!(ld_sockets = launch_data_dict_lookup(ld_resp, LAUNCH_JOBKEY_SOCKETS))) | |
1440 | { | |
1441 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1442 | "launchd_checkin: No sockets found to answer requests on!"); | |
1443 | exit(EXIT_FAILURE); | |
1444 | } | |
bd7854cb | 1445 | |
a4d04587 | 1446 | /* |
1447 | * Get the array of listener sockets... | |
1448 | */ | |
1449 | ||
1450 | if (!(ld_array = launch_data_dict_lookup(ld_sockets, "Listeners"))) | |
1451 | { | |
1452 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1453 | "launchd_checkin: No sockets found to answer requests on!"); | |
1454 | exit(EXIT_FAILURE); | |
1455 | } | |
1456 | ||
1457 | /* | |
1458 | * Add listening fd(s) to the Listener array... | |
1459 | */ | |
1460 | ||
1461 | if (launch_data_get_type(ld_array) == LAUNCH_DATA_ARRAY) | |
1462 | { | |
1463 | /* | |
1464 | * Free the listeners array built from cupsd.conf... | |
1465 | */ | |
bd7854cb | 1466 | |
1467 | cupsdDeleteAllListeners(); | |
a4d04587 | 1468 | |
1469 | /* | |
bd7854cb | 1470 | * Create a new array of listeners from the launchd data... |
a4d04587 | 1471 | */ |
1472 | ||
bd7854cb | 1473 | Listeners = cupsArrayNew(NULL, NULL); |
1474 | count = launch_data_array_get_count(ld_array); | |
1475 | ||
1476 | for (i = 0; i < count; i ++) | |
a4d04587 | 1477 | { |
1478 | /* | |
1479 | * Copy the current address and log it... | |
1480 | */ | |
bd7854cb | 1481 | |
1482 | if ((lis = calloc(1, sizeof(cupsd_listener_t))) == NULL) | |
1483 | { | |
1484 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1485 | "launchd_checkin: Unable to allocate listener - %s.", | |
1486 | strerror(errno)); | |
1487 | exit(EXIT_FAILURE); | |
1488 | } | |
1489 | ||
1490 | cupsArrayAdd(Listeners, lis); | |
1491 | ||
a4d04587 | 1492 | tmp = launch_data_array_get_index(ld_array, i); |
1493 | lis->fd = launch_data_get_fd(tmp); | |
1494 | addrlen = sizeof(lis->address); | |
1495 | ||
1496 | if (getsockname(lis->fd, (struct sockaddr *)&(lis->address), &addrlen)) | |
1497 | { | |
1498 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1499 | "launchd_checkin: Unable to get local address - %s", | |
1500 | strerror(errno)); | |
1501 | } | |
bd7854cb | 1502 | |
a4d04587 | 1503 | # ifdef HAVE_SSL |
1504 | portnum = 0; | |
bd7854cb | 1505 | |
a4d04587 | 1506 | # ifdef AF_INET6 |
1507 | if (addr.addr.sa_family == AF_INET6) | |
1508 | portnum = ntohs(addr.ipv6.sin6_port); | |
1509 | else | |
1510 | # endif /* AF_INET6 */ | |
a4d04587 | 1511 | if (addr.addr.sa_family == AF_INET) |
1512 | portnum = ntohs(addr.ipv4.sin_port); | |
1513 | ||
1514 | if (portnum == 443) | |
1515 | lis->encryption = HTTP_ENCRYPT_ALWAYS; | |
1516 | # endif /* HAVE_SSL */ | |
1517 | } | |
1518 | } | |
1519 | ||
1520 | /* | |
1521 | * Collect the browse socket (if there is one)... | |
1522 | */ | |
1523 | ||
1524 | if ((ld_array = launch_data_dict_lookup(ld_sockets, "BrowseSockets"))) | |
1525 | { | |
1526 | if (launch_data_get_type(ld_array) == LAUNCH_DATA_ARRAY) | |
1527 | { | |
1528 | tmp = launch_data_array_get_index(ld_array, 0); | |
1529 | ||
1530 | if (launch_data_get_type(tmp) == LAUNCH_DATA_FD) | |
1531 | { | |
1532 | if (BrowseSocket != -1) | |
1533 | close(BrowseSocket); | |
1534 | ||
1535 | BrowseSocket = launch_data_get_fd(tmp); | |
1536 | } | |
1537 | else | |
1538 | cupsdLogMessage(CUPSD_LOG_WARN, | |
1539 | "launchd_checkin: BrowseSocket not a fd!"); | |
1540 | } | |
1541 | else | |
1542 | cupsdLogMessage(CUPSD_LOG_WARN, | |
1543 | "launchd_checkin: BrowseSockets is not an array!"); | |
1544 | } | |
1545 | else | |
1546 | cupsdLogMessage(CUPSD_LOG_DEBUG, "launchd_checkin: No BrowseSockets"); | |
1547 | ||
1548 | launch_data_free(ld_msg); | |
1549 | launch_data_free(ld_resp); | |
1550 | } | |
1551 | ||
1552 | ||
1553 | /* | |
1554 | * 'launchd_reload()' - Tell launchd to reload the configuration file to pick | |
1555 | * up the new listening directives. | |
1556 | */ | |
1557 | ||
1558 | static void | |
1559 | launchd_reload(void) | |
1560 | { | |
1561 | int child_status; /* Exit status of child process */ | |
1562 | pid_t child_pid, /* Child PID */ | |
1563 | waitpid_status; /* Child process exit status */ | |
1564 | char *argv[4]; /* Argument strings */ | |
1565 | ||
1566 | ||
1567 | /* | |
1568 | * The current launchd doesn't support a reload option (rdar://3854821). | |
1569 | * Until this is fixed we need to reload the config file by execing launchctl | |
1570 | * twice (to unload then load). NOTE: This will cause us to exit on SIGTERM | |
1571 | * which will cancel all client & job activity. | |
1572 | * | |
1573 | * After this is fixed we'll be able to tell launchd to reload the file | |
1574 | * and pick up the new listening descriptors without disrupting current | |
1575 | * activity. | |
1576 | */ | |
1577 | ||
1578 | /* | |
1579 | * Unloading the current configuration will cause launchd to send us a SIGTERM; | |
1580 | * block it for now so we can get our work done... | |
1581 | */ | |
1582 | ||
1583 | cupsdHoldSignals(); | |
1584 | ||
1585 | /* | |
1586 | * Set up the unload arguments to launchctl... | |
1587 | */ | |
1588 | ||
1589 | argv[0] = "/bin/launchctl"; | |
1590 | argv[1] = "unload"; | |
1591 | argv[2] = LaunchdConf; | |
1592 | argv[3] = NULL; | |
1593 | ||
1594 | if (cupsdStartProcess(argv[0], argv, NULL, -1, -1, -1, -1, 1, &child_pid) < 0) | |
1595 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1596 | "launchd_reload: Unable to execute %s - %s", argv[0], | |
1597 | strerror(errno)); | |
1598 | else | |
1599 | { | |
1600 | do | |
1601 | { | |
1602 | waitpid_status = waitpid(child_pid, &child_status, 0); | |
1603 | } | |
1604 | while (waitpid_status == (pid_t)-1 && errno == EINTR); | |
1605 | ||
1606 | if (WIFSIGNALED(child_status)) | |
1607 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
bd7854cb | 1608 | "launchd_reload: %s pid %d crashed on signal %d!", |
a4d04587 | 1609 | basename(argv[0]), child_pid, WTERMSIG(child_status)); |
1610 | else | |
1611 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
bd7854cb | 1612 | "launchd_reload: %s pid %d stopped with status %d!", |
a4d04587 | 1613 | basename(argv[0]), child_pid, WEXITSTATUS(child_status)); |
1614 | ||
1615 | /* | |
1616 | * Do it again with the load command... | |
1617 | */ | |
bd7854cb | 1618 | |
a4d04587 | 1619 | argv[1] = "load"; |
1620 | ||
1621 | if (cupsdStartProcess(argv[0], argv, NULL, -1, -1, -1, -1, 1, | |
1622 | &child_pid) < 0) | |
1623 | { | |
1624 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1625 | "launchd_reload: Unable to fork for %s - %s", argv[0], | |
1626 | strerror(errno)); | |
1627 | } | |
1628 | else | |
1629 | { | |
1630 | do | |
1631 | { | |
1632 | waitpid_status = waitpid(child_pid, &child_status, 0); | |
1633 | } while (waitpid_status == (pid_t)-1 && errno == EINTR); | |
1634 | ||
1635 | if (WIFSIGNALED(child_status)) | |
1636 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1637 | "launchd_reload: %s pid %d crashed on signal %d!", | |
1638 | basename(argv[0]), child_pid, WTERMSIG(child_status)); | |
1639 | else | |
1640 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1641 | "launchd_reload: %s pid %d stopped with status %d", | |
1642 | basename(argv[0]), child_pid, | |
1643 | WEXITSTATUS(child_status)); | |
1644 | } | |
1645 | } | |
1646 | ||
1647 | /* | |
1648 | * Leave signals blocked since exit() will be called momentarily anyways... | |
1649 | */ | |
1650 | } | |
1651 | ||
1652 | ||
1653 | /* | |
bd7854cb | 1654 | * 'launchd_sync_conf()' - Re-write the launchd(8) config file |
a4d04587 | 1655 | * org.cups.cupsd.plist based on cupsd.conf. |
1656 | */ | |
1657 | ||
1658 | static int /* O - 1 if the file was updated */ | |
1659 | launchd_sync_conf(void) | |
1660 | { | |
bd7854cb | 1661 | int portnum; /* Port number */ |
4400e98d | 1662 | CFMutableDictionaryRef cupsd_dict, /* org.cups.cupsd.plist dictionary */ |
a4d04587 | 1663 | sockets, /* Sockets dictionary */ |
1664 | listener; /* Listener dictionary */ | |
bd7854cb | 1665 | CFDataRef resourceData; /* XML property list */ |
a4d04587 | 1666 | CFMutableArrayRef array; /* Array */ |
1667 | CFNumberRef socket_mode; /* Domain socket mode bits */ | |
1668 | CFStringRef socket_path; /* Domain socket path */ | |
1669 | CFTypeRef value; /* CF value */ | |
1670 | CFURLRef fileURL; /* File URL */ | |
1671 | SInt32 errorCode; /* Error code */ | |
1672 | cupsd_listener_t *lis; /* Current listening socket */ | |
1673 | struct servent *service; /* Services data base entry */ | |
1674 | char temp[1024]; /* Temporary buffer for value */ | |
1675 | struct stat cupsd_sb, /* File info for cupsd.conf */ | |
4400e98d | 1676 | launchd_sb; /* File info for org.cups.cupsd.plist */ |
a4d04587 | 1677 | |
1678 | ||
1679 | /* | |
1680 | * If the launchd conf file modification time is newer than the cupsd.conf | |
1681 | * time then there's nothing to do... | |
1682 | */ | |
1683 | ||
bd7854cb | 1684 | if (!stat(ConfigurationFile, &cupsd_sb) && |
1685 | !stat(LaunchdConf, &launchd_sb) && | |
a4d04587 | 1686 | launchd_sb.st_mtimespec.tv_sec >= cupsd_sb.st_mtimespec.tv_sec) |
1687 | { | |
1688 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
bd7854cb | 1689 | "launchd_sync_conf: Nothing to do, pid=%d.", |
a4d04587 | 1690 | (int)getpid()); |
1691 | return (0); | |
1692 | } | |
1693 | ||
1694 | /* | |
4400e98d | 1695 | * Time to write a new 'org.cups.cupsd.plist' file. |
a4d04587 | 1696 | * Create the new dictionary and populate it with values... |
1697 | */ | |
1698 | ||
1699 | if ((cupsd_dict = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, | |
1700 | &kCFTypeDictionaryKeyCallBacks, | |
1701 | &kCFTypeDictionaryValueCallBacks)) != NULL) | |
1702 | { | |
e00b005a | 1703 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_LABEL), |
1704 | CFSTR("org.cups.cupsd")); | |
e00b005a | 1705 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_ONDEMAND), |
1706 | kCFBooleanTrue); | |
a4d04587 | 1707 | |
1708 | if ((Browsing && BrowseLocalProtocols && cupsArrayCount(Printers)) || | |
1709 | cupsArrayCount(ActiveJobs)) | |
e00b005a | 1710 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_RUNATLOAD), |
1711 | kCFBooleanTrue); | |
a4d04587 | 1712 | else |
e00b005a | 1713 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_RUNATLOAD), |
1714 | kCFBooleanFalse); | |
a4d04587 | 1715 | |
4400e98d | 1716 | #ifdef LAUNCH_JOBKEY_SERVICEIPC |
e00b005a | 1717 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_SERVICEIPC), |
1718 | kCFBooleanTrue); | |
4400e98d | 1719 | #endif /* LAUNCH_JOBKEY_SERVICEIPC */ |
a4d04587 | 1720 | |
1721 | if ((array = CFArrayCreateMutable(kCFAllocatorDefault, 2, | |
1722 | &kCFTypeArrayCallBacks)) != NULL) | |
1723 | { | |
e00b005a | 1724 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_PROGRAMARGUMENTS), |
1725 | array); | |
a4d04587 | 1726 | CFArrayAppendValue(array, CFSTR("/usr/sbin/cupsd")); |
1727 | CFArrayAppendValue(array, CFSTR("-l")); | |
1728 | CFRelease(array); | |
1729 | } | |
1730 | ||
1731 | /* | |
1732 | * Add a sockets dictionary... | |
1733 | */ | |
bd7854cb | 1734 | |
a4d04587 | 1735 | if ((sockets = (CFMutableDictionaryRef)CFDictionaryCreateMutable( |
1736 | kCFAllocatorDefault, 0, | |
1737 | &kCFTypeDictionaryKeyCallBacks, | |
1738 | &kCFTypeDictionaryValueCallBacks)) != NULL) | |
1739 | { | |
e00b005a | 1740 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_SOCKETS), sockets); |
a4d04587 | 1741 | |
1742 | /* | |
1743 | * Add a Listeners array to the sockets dictionary... | |
1744 | */ | |
bd7854cb | 1745 | |
a4d04587 | 1746 | if ((array = CFArrayCreateMutable(kCFAllocatorDefault, 0, |
1747 | &kCFTypeArrayCallBacks)) != NULL) | |
1748 | { | |
1749 | CFDictionaryAddValue(sockets, CFSTR("Listeners"), array); | |
1750 | ||
1751 | /* | |
1752 | * For each listener add a dictionary to the listeners array... | |
1753 | */ | |
bd7854cb | 1754 | |
1755 | for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); | |
1756 | lis; | |
1757 | lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
a4d04587 | 1758 | { |
1759 | if ((listener = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, | |
1760 | &kCFTypeDictionaryKeyCallBacks, | |
1761 | &kCFTypeDictionaryValueCallBacks)) != NULL) | |
1762 | { | |
1763 | CFArrayAppendValue(array, listener); | |
1764 | ||
1765 | # ifdef AF_LOCAL | |
1766 | if (lis->address.addr.sa_family == AF_LOCAL) | |
1767 | { | |
bd7854cb | 1768 | if ((socket_path = CFStringCreateWithCString(kCFAllocatorDefault, |
1769 | lis->address.un.sun_path, | |
a4d04587 | 1770 | kCFStringEncodingUTF8))) |
1771 | { | |
e00b005a | 1772 | CFDictionaryAddValue(listener, |
1773 | CFSTR(LAUNCH_JOBSOCKETKEY_PATHNAME), | |
a4d04587 | 1774 | socket_path); |
1775 | CFRelease(socket_path); | |
1776 | } | |
1777 | portnum = 0140777; /* (S_IFSOCK|S_IRWXU|S_IRWXG|S_IRWXO) or * | |
1778 | * 49663d decimal */ | |
1779 | if ((socket_mode = CFNumberCreate(kCFAllocatorDefault, | |
1780 | kCFNumberIntType, &portnum))) | |
1781 | { | |
1782 | CFDictionaryAddValue(listener, CFSTR("SockPathMode"), | |
1783 | socket_mode); | |
1784 | CFRelease(socket_mode); | |
1785 | } | |
1786 | } | |
1787 | else | |
1788 | # endif /* AF_LOCAL */ | |
1789 | { | |
1790 | # ifdef AF_INET6 | |
1791 | if (lis->address.addr.sa_family == AF_INET6) | |
1792 | { | |
e00b005a | 1793 | CFDictionaryAddValue(listener, |
1794 | CFSTR(LAUNCH_JOBSOCKETKEY_FAMILY), | |
a4d04587 | 1795 | CFSTR("IPv6")); |
1796 | portnum = lis->address.ipv6.sin6_port; | |
1797 | } | |
1798 | else | |
1799 | # endif /* AF_INET6 */ | |
1800 | { | |
e00b005a | 1801 | CFDictionaryAddValue(listener, |
1802 | CFSTR(LAUNCH_JOBSOCKETKEY_FAMILY), | |
a4d04587 | 1803 | CFSTR("IPv4")); |
1804 | portnum = lis->address.ipv4.sin_port; | |
1805 | } | |
1806 | ||
1807 | if ((service = getservbyport(portnum, NULL))) | |
bd7854cb | 1808 | value = CFStringCreateWithCString(kCFAllocatorDefault, |
1809 | service->s_name, | |
a4d04587 | 1810 | kCFStringEncodingUTF8); |
1811 | else | |
bd7854cb | 1812 | value = CFNumberCreate(kCFAllocatorDefault, |
a4d04587 | 1813 | kCFNumberIntType, &portnum); |
1814 | ||
1815 | if (value) | |
1816 | { | |
e00b005a | 1817 | CFDictionaryAddValue(listener, |
1818 | CFSTR(LAUNCH_JOBSOCKETKEY_SERVICENAME), | |
1819 | value); | |
a4d04587 | 1820 | CFRelease(value); |
1821 | } | |
1822 | ||
1823 | httpAddrString(&lis->address, temp, sizeof(temp)); | |
bd7854cb | 1824 | if ((value = CFStringCreateWithCString(kCFAllocatorDefault, temp, |
a4d04587 | 1825 | kCFStringEncodingUTF8))) |
1826 | { | |
e00b005a | 1827 | CFDictionaryAddValue(listener, |
1828 | CFSTR(LAUNCH_JOBSOCKETKEY_NODENAME), | |
1829 | value); | |
a4d04587 | 1830 | CFRelease(value); |
1831 | } | |
1832 | } | |
1833 | ||
1834 | CFRelease(listener); | |
1835 | } | |
1836 | } | |
1837 | ||
1838 | CFRelease(array); | |
1839 | } | |
1840 | ||
1841 | /* | |
1842 | * Add the BrowseSocket to the sockets dictionary... | |
1843 | */ | |
bd7854cb | 1844 | |
a4d04587 | 1845 | if (Browsing && (BrowseRemoteProtocols & BROWSE_CUPS)) |
1846 | { | |
bd7854cb | 1847 | if ((array = CFArrayCreateMutable(kCFAllocatorDefault, 0, |
a4d04587 | 1848 | &kCFTypeArrayCallBacks)) != NULL) |
1849 | { | |
1850 | CFDictionaryAddValue(sockets, CFSTR("BrowseSockets"), array); | |
1851 | ||
1852 | if ((listener = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, | |
1853 | &kCFTypeDictionaryKeyCallBacks, | |
1854 | &kCFTypeDictionaryValueCallBacks)) != NULL) | |
1855 | { | |
1856 | CFArrayAppendValue(array, listener); | |
1857 | ||
e00b005a | 1858 | CFDictionaryAddValue(listener, CFSTR(LAUNCH_JOBSOCKETKEY_FAMILY), |
1859 | CFSTR("IPv4")); | |
1860 | CFDictionaryAddValue(listener, CFSTR(LAUNCH_JOBSOCKETKEY_TYPE), | |
1861 | CFSTR("dgram")); | |
a4d04587 | 1862 | |
1863 | if ((service = getservbyport(BrowsePort, NULL))) | |
bd7854cb | 1864 | value = CFStringCreateWithCString(kCFAllocatorDefault, |
1865 | service->s_name, | |
a4d04587 | 1866 | kCFStringEncodingUTF8); |
1867 | else | |
bd7854cb | 1868 | value = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, |
a4d04587 | 1869 | &BrowsePort); |
1870 | ||
e00b005a | 1871 | CFDictionaryAddValue(listener, |
1872 | CFSTR(LAUNCH_JOBSOCKETKEY_SERVICENAME), value); | |
a4d04587 | 1873 | CFRelease(value); |
1874 | ||
1875 | CFRelease(listener); | |
1876 | } | |
1877 | ||
1878 | CFRelease(array); | |
1879 | } | |
1880 | } | |
1881 | ||
1882 | CFRelease(sockets); | |
1883 | } | |
1884 | ||
1885 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
bd7854cb | 1886 | "launchd_sync_conf: Updating \"%s\", pid=%d\n", |
a4d04587 | 1887 | LaunchdConf, (int)getpid()); |
bd7854cb | 1888 | |
1889 | if ((fileURL = CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault, | |
1890 | (const unsigned char *)LaunchdConf, | |
a4d04587 | 1891 | strlen(LaunchdConf), false))) |
1892 | { | |
1893 | if ((resourceData = CFPropertyListCreateXMLData(kCFAllocatorDefault, | |
1894 | cupsd_dict))) | |
1895 | { | |
1896 | if (!CFURLWriteDataAndPropertiesToResource(fileURL, resourceData, | |
1897 | NULL, &errorCode)) | |
1898 | { | |
1899 | cupsdLogMessage(CUPSD_LOG_WARN, | |
1900 | "launchd_sync_conf: " | |
1901 | "CFURLWriteDataAndPropertiesToResource(\"%s\") " | |
bd7854cb | 1902 | "failed: %d\n", |
a4d04587 | 1903 | LaunchdConf, (int)errorCode); |
1904 | } | |
1905 | ||
1906 | CFRelease(resourceData); | |
1907 | } | |
1908 | ||
1909 | CFRelease(fileURL); | |
1910 | } | |
1911 | ||
1912 | CFRelease(cupsd_dict); | |
1913 | } | |
1914 | ||
1915 | /* | |
1916 | * Let the caller know we updated the file... | |
1917 | */ | |
1918 | ||
1919 | return (1); | |
1920 | } | |
1921 | #endif /* HAVE_LAUNCHD */ | |
1922 | ||
1923 | ||
ef416fc2 | 1924 | /* |
1925 | * 'parent_handler()' - Catch USR1/CHLD signals... | |
1926 | */ | |
1927 | ||
1928 | static void | |
1929 | parent_handler(int sig) /* I - Signal */ | |
1930 | { | |
1931 | /* | |
1932 | * Store the signal we got from the OS and return... | |
1933 | */ | |
1934 | ||
1935 | parent_signal = sig; | |
1936 | } | |
1937 | ||
1938 | ||
1939 | /* | |
1940 | * 'process_children()' - Process all dead children... | |
1941 | */ | |
1942 | ||
1943 | static void | |
1944 | process_children(void) | |
1945 | { | |
1946 | int status; /* Exit status of child */ | |
1947 | int pid; /* Process ID of child */ | |
1948 | cupsd_job_t *job; /* Current job */ | |
1949 | int i; /* Looping var */ | |
e00b005a | 1950 | char name[1024]; /* Process name */ |
ef416fc2 | 1951 | |
1952 | ||
1953 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "process_children()"); | |
1954 | ||
1955 | /* | |
1956 | * Reset the dead_children flag... | |
1957 | */ | |
1958 | ||
1959 | dead_children = 0; | |
1960 | ||
1961 | /* | |
1962 | * Collect the exit status of some children... | |
1963 | */ | |
1964 | ||
1965 | #ifdef HAVE_WAITPID | |
1966 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) | |
1967 | #elif defined(HAVE_WAIT3) | |
1968 | while ((pid = wait3(&status, WNOHANG, NULL)) > 0) | |
1969 | #else | |
1970 | if ((pid = wait(&status)) > 0) | |
1971 | #endif /* HAVE_WAITPID */ | |
1972 | { | |
ef416fc2 | 1973 | /* |
1974 | * Ignore SIGTERM errors - that comes when a job is cancelled... | |
1975 | */ | |
1976 | ||
e00b005a | 1977 | cupsdFinishProcess(pid, name, sizeof(name)); |
1978 | ||
ef416fc2 | 1979 | if (status == SIGTERM) |
1980 | status = 0; | |
1981 | ||
1982 | if (status) | |
1983 | { | |
1984 | if (WIFEXITED(status)) | |
e00b005a | 1985 | cupsdLogMessage(CUPSD_LOG_ERROR, "PID %d (%s) stopped with status %d!", |
1986 | pid, name, WEXITSTATUS(status)); | |
ef416fc2 | 1987 | else |
e00b005a | 1988 | cupsdLogMessage(CUPSD_LOG_ERROR, "PID %d (%s) crashed on signal %d!", |
1989 | pid, name, WTERMSIG(status)); | |
ef416fc2 | 1990 | |
1991 | if (LogLevel < CUPSD_LOG_DEBUG) | |
1992 | cupsdLogMessage(CUPSD_LOG_INFO, | |
bd7854cb | 1993 | "Hint: Try setting the LogLevel to \"debug\" to find " |
1994 | "out more."); | |
ef416fc2 | 1995 | } |
1996 | else | |
e00b005a | 1997 | cupsdLogMessage(CUPSD_LOG_DEBUG, "PID %d (%s) exited with no errors.", |
1998 | pid, name); | |
ef416fc2 | 1999 | |
2000 | /* | |
2001 | * Delete certificates for CGI processes... | |
2002 | */ | |
2003 | ||
2004 | if (pid) | |
2005 | cupsdDeleteCert(pid); | |
2006 | ||
2007 | /* | |
2008 | * Lookup the PID in the jobs list... | |
2009 | */ | |
2010 | ||
2011 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); | |
2012 | job; | |
2013 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
bd7854cb | 2014 | if (job->state_value == IPP_JOB_PROCESSING) |
ef416fc2 | 2015 | { |
2016 | for (i = 0; job->filters[i]; i ++) | |
2017 | if (job->filters[i] == pid) | |
2018 | break; | |
2019 | ||
2020 | if (job->filters[i] || job->backend == pid) | |
2021 | { | |
2022 | /* | |
2023 | * OK, this process has gone away; what's left? | |
2024 | */ | |
2025 | ||
2026 | if (job->filters[i]) | |
2027 | job->filters[i] = -pid; | |
2028 | else | |
2029 | job->backend = -pid; | |
2030 | ||
2031 | if (status && job->status >= 0) | |
2032 | { | |
2033 | /* | |
2034 | * An error occurred; save the exit status so we know to stop | |
2035 | * the printer or cancel the job when all of the filters finish... | |
2036 | * | |
2037 | * A negative status indicates that the backend failed and the | |
2038 | * printer needs to be stopped. | |
2039 | */ | |
2040 | ||
2041 | if (job->filters[i]) | |
2042 | job->status = status; /* Filter failed */ | |
2043 | else | |
2044 | job->status = -status; /* Backend failed */ | |
e00b005a | 2045 | |
2046 | if (job->printer && !(job->printer->type & CUPS_PRINTER_FAX)) | |
2047 | { | |
2048 | snprintf(job->printer->state_message, | |
2049 | sizeof(job->printer->state_message), "%s failed", name); | |
2050 | cupsdAddPrinterHistory(job->printer); | |
2051 | } | |
ef416fc2 | 2052 | } |
2053 | ||
2054 | /* | |
2055 | * If this is not the last file in a job, see if all of the | |
2056 | * filters are done, and if so move to the next file. | |
2057 | */ | |
2058 | ||
2059 | if (job->current_file < job->num_files) | |
2060 | { | |
2061 | for (i = 0; job->filters[i] < 0; i ++); | |
2062 | ||
2063 | if (!job->filters[i]) | |
2064 | { | |
2065 | /* | |
2066 | * Process the next file... | |
2067 | */ | |
2068 | ||
2069 | cupsdFinishJob(job); | |
2070 | } | |
2071 | } | |
2072 | break; | |
2073 | } | |
2074 | } | |
2075 | } | |
2076 | } | |
2077 | ||
2078 | ||
2079 | /* | |
2080 | * 'sigchld_handler()' - Handle 'child' signals from old processes. | |
2081 | */ | |
2082 | ||
2083 | static void | |
2084 | sigchld_handler(int sig) /* I - Signal number */ | |
2085 | { | |
2086 | (void)sig; | |
2087 | ||
2088 | /* | |
2089 | * Flag that we have dead children... | |
2090 | */ | |
2091 | ||
2092 | dead_children = 1; | |
2093 | ||
2094 | /* | |
2095 | * Reset the signal handler as needed... | |
2096 | */ | |
2097 | ||
2098 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
2099 | signal(SIGCLD, sigchld_handler); | |
2100 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
2101 | } | |
2102 | ||
2103 | ||
2104 | /* | |
2105 | * 'sighup_handler()' - Handle 'hangup' signals to reconfigure the scheduler. | |
2106 | */ | |
2107 | ||
2108 | static void | |
2109 | sighup_handler(int sig) /* I - Signal number */ | |
2110 | { | |
2111 | (void)sig; | |
2112 | ||
2113 | NeedReload = RELOAD_ALL; | |
2114 | ReloadTime = time(NULL); | |
2115 | ||
2116 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
2117 | signal(SIGHUP, sighup_handler); | |
2118 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
2119 | } | |
2120 | ||
2121 | ||
2122 | /* | |
2123 | * 'sigterm_handler()' - Handle 'terminate' signals that stop the scheduler. | |
2124 | */ | |
2125 | ||
2126 | static void | |
2127 | sigterm_handler(int sig) /* I - Signal */ | |
2128 | { | |
2129 | (void)sig; /* remove compiler warnings... */ | |
2130 | ||
2131 | /* | |
2132 | * Flag that we should stop and return... | |
2133 | */ | |
2134 | ||
2135 | stop_scheduler = 1; | |
2136 | } | |
2137 | ||
2138 | ||
2139 | /* | |
2140 | * 'select_timeout()' - Calculate the select timeout value. | |
2141 | * | |
2142 | */ | |
2143 | ||
2144 | static long /* O - Number of seconds */ | |
bd7854cb | 2145 | select_timeout(int fds) /* I - Number of descriptors returned */ |
ef416fc2 | 2146 | { |
ef416fc2 | 2147 | long timeout; /* Timeout for select */ |
2148 | time_t now; /* Current time */ | |
2149 | cupsd_client_t *con; /* Client information */ | |
2150 | cupsd_printer_t *p; /* Printer information */ | |
2151 | cupsd_job_t *job; /* Job information */ | |
2152 | cupsd_subscription_t *sub; /* Subscription information */ | |
2153 | const char *why; /* Debugging aid */ | |
2154 | ||
2155 | ||
2156 | /* | |
2157 | * Check to see if any of the clients have pending data to be | |
2158 | * processed; if so, the timeout should be 0... | |
2159 | */ | |
2160 | ||
bd7854cb | 2161 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
2162 | con; | |
2163 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 2164 | if (con->http.used > 0) |
2165 | return (0); | |
2166 | ||
2167 | /* | |
2168 | * If select has been active in the last second (fds != 0) or we have | |
2169 | * many resources in use then don't bother trying to optimize the | |
2170 | * timeout, just make it 1 second. | |
2171 | */ | |
2172 | ||
bd7854cb | 2173 | if (fds || cupsArrayCount(Clients) > 50) |
ef416fc2 | 2174 | return (1); |
2175 | ||
fa73b229 | 2176 | /* |
2177 | * If we had a recent event notification, timeout in 1 second... | |
2178 | */ | |
2179 | ||
2180 | if (LastEvent) | |
2181 | return (1); | |
2182 | ||
ef416fc2 | 2183 | /* |
2184 | * Otherwise, check all of the possible events that we need to wake for... | |
2185 | */ | |
2186 | ||
2187 | now = time(NULL); | |
2188 | timeout = now + 86400; /* 86400 == 1 day */ | |
2189 | why = "do nothing"; | |
2190 | ||
2191 | /* | |
2192 | * Check the activity and close old clients... | |
2193 | */ | |
2194 | ||
bd7854cb | 2195 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
2196 | con; | |
2197 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 2198 | if ((con->http.activity + Timeout) < timeout) |
2199 | { | |
2200 | timeout = con->http.activity + Timeout; | |
2201 | why = "timeout a client connection"; | |
2202 | } | |
2203 | ||
2204 | /* | |
2205 | * Update the browse list as needed... | |
2206 | */ | |
2207 | ||
2208 | if (Browsing && BrowseLocalProtocols) | |
2209 | { | |
2210 | #ifdef HAVE_LIBSLP | |
2211 | if ((BrowseLocalProtocols & BROWSE_SLP) && (BrowseSLPRefresh < timeout)) | |
2212 | { | |
2213 | timeout = BrowseSLPRefresh; | |
2214 | why = "update SLP browsing"; | |
2215 | } | |
2216 | #endif /* HAVE_LIBSLP */ | |
2217 | ||
b423cd4c | 2218 | #ifdef HAVE_LDAP |
2219 | if ((BrowseLocalProtocols & BROWSE_LDAP) && (BrowseLDAPRefresh < timeout)) | |
2220 | { | |
2221 | timeout = BrowseLDAPRefresh; | |
2222 | why = "update LDAP browsing"; | |
2223 | } | |
2224 | #endif /* HAVE_LDAP */ | |
2225 | ||
ef416fc2 | 2226 | if (BrowseLocalProtocols & BROWSE_CUPS) |
2227 | { | |
2228 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); | |
2229 | p; | |
2230 | p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
2231 | { | |
2232 | if (p->type & CUPS_PRINTER_REMOTE) | |
2233 | { | |
2234 | if ((p->browse_time + BrowseTimeout) < timeout) | |
2235 | { | |
2236 | timeout = p->browse_time + BrowseTimeout; | |
2237 | why = "browse timeout a printer"; | |
2238 | } | |
2239 | } | |
2240 | else if (!(p->type & CUPS_PRINTER_IMPLICIT)) | |
2241 | { | |
2242 | if (BrowseInterval && (p->browse_time + BrowseInterval) < timeout) | |
2243 | { | |
2244 | timeout = p->browse_time + BrowseInterval; | |
2245 | why = "send browse update"; | |
2246 | } | |
2247 | } | |
2248 | } | |
2249 | } | |
2250 | } | |
2251 | ||
2252 | /* | |
2253 | * Check for any active jobs... | |
2254 | */ | |
2255 | ||
2256 | if (timeout > (now + 10) && ActiveJobs) | |
2257 | { | |
2258 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); | |
2259 | job; | |
2260 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
bd7854cb | 2261 | if (job->state_value <= IPP_JOB_PROCESSING) |
ef416fc2 | 2262 | { |
2263 | timeout = now + 10; | |
2264 | why = "process active jobs"; | |
2265 | break; | |
2266 | } | |
2267 | } | |
2268 | ||
2269 | #ifdef HAVE_MALLINFO | |
2270 | /* | |
2271 | * Log memory usage every minute... | |
2272 | */ | |
2273 | ||
2274 | if (LogLevel >= CUPSD_LOG_DEBUG && (mallinfo_time + 60) < timeout) | |
2275 | { | |
2276 | timeout = mallinfo_time + 60; | |
2277 | why = "display memory usage"; | |
2278 | } | |
2279 | #endif /* HAVE_MALLINFO */ | |
2280 | ||
ef416fc2 | 2281 | /* |
2282 | * Expire subscriptions as needed... | |
2283 | */ | |
2284 | ||
2285 | for (sub = (cupsd_subscription_t *)cupsArrayFirst(Subscriptions); | |
2286 | sub; | |
2287 | sub = (cupsd_subscription_t *)cupsArrayNext(Subscriptions)) | |
bd7854cb | 2288 | if (!sub->job && sub->expire && sub->expire < timeout) |
ef416fc2 | 2289 | { |
2290 | timeout = sub->expire; | |
2291 | why = "expire subscription"; | |
2292 | } | |
2293 | ||
2294 | /* | |
2295 | * Adjust from absolute to relative time. If p->browse_time above | |
2296 | * was 0 then we can end up with a negative value here, so check. | |
2297 | * We add 1 second to the timeout since events occur after the | |
2298 | * timeout expires, and limit the timeout to 86400 seconds (1 day) | |
2299 | * to avoid select() timeout limits present on some operating | |
2300 | * systems... | |
2301 | */ | |
2302 | ||
2303 | timeout = timeout - now + 1; | |
2304 | ||
2305 | if (timeout < 1) | |
2306 | timeout = 1; | |
2307 | else if (timeout > 86400) | |
2308 | timeout = 86400; | |
2309 | ||
2310 | /* | |
2311 | * Log and return the timeout value... | |
2312 | */ | |
2313 | ||
2314 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout: %ld seconds to %s", | |
2315 | timeout, why); | |
2316 | ||
2317 | return (timeout); | |
2318 | } | |
2319 | ||
2320 | ||
2321 | /* | |
2322 | * 'usage()' - Show scheduler usage. | |
2323 | */ | |
2324 | ||
2325 | static void | |
a4d04587 | 2326 | usage(int status) /* O - Exit status */ |
ef416fc2 | 2327 | { |
a4d04587 | 2328 | _cupsLangPuts(status ? stderr : stdout, |
2329 | _("Usage: cupsd [-c config-file] [-f] [-F] [-h] [-l]\n" | |
2330 | "\n" | |
2331 | "-c config-file Load alternate configuration file\n" | |
2332 | "-f Run in the foreground\n" | |
2333 | "-F Run in the foreground but detach\n" | |
2334 | "-h Show this usage message\n" | |
2335 | "-l Run cupsd from launchd(8)\n")); | |
2336 | exit(status); | |
ef416fc2 | 2337 | } |
2338 | ||
2339 | ||
2340 | /* | |
b423cd4c | 2341 | * End of "$Id: main.c 5157 2006-02-23 20:58:57Z mike $". |
ef416fc2 | 2342 | */ |