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ef416fc2 | 1 | /* |
d09495fa | 2 | * "$Id: main.c 5878 2006-08-24 15:55:42Z 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. | |
ef416fc2 | 29 | * cupsdHoldSignals() - Hold child and termination signals. |
ef416fc2 | 30 | * cupsdReleaseSignals() - Release signals for delivery. |
31 | * cupsdSetString() - Set a string value. | |
32 | * cupsdSetStringf() - Set a formatted string value. | |
a4d04587 | 33 | * launchd_checkin() - Check-in with launchd and collect the |
34 | * listening fds. | |
35 | * launchd_reload() - Tell launchd to reload the configuration | |
36 | * file to pick up the new listening directives. | |
bd7854cb | 37 | * launchd_sync_conf() - Re-write the launchd(8) config file |
4400e98d | 38 | * org.cups.cupsd.plist based on cupsd.conf. |
ef416fc2 | 39 | * parent_handler() - Catch USR1/CHLD signals... |
40 | * process_children() - Process all dead children... | |
41 | * sigchld_handler() - Handle 'child' signals from old processes. | |
42 | * sighup_handler() - Handle 'hangup' signals to reconfigure the | |
43 | * scheduler. | |
44 | * sigterm_handler() - Handle 'terminate' signals that stop the | |
45 | * scheduler. | |
46 | * select_timeout() - Calculate the select timeout value. | |
47 | * usage() - Show scheduler usage. | |
48 | */ | |
49 | ||
50 | /* | |
51 | * Include necessary headers... | |
52 | */ | |
53 | ||
54 | #define _MAIN_C_ | |
55 | #include "cupsd.h" | |
56 | #include <sys/resource.h> | |
57 | #include <syslog.h> | |
58 | #include <grp.h> | |
59 | ||
a4d04587 | 60 | #ifdef HAVE_LAUNCH_H |
61 | # include <launch.h> | |
62 | # include <libgen.h> | |
63 | #endif /* HAVE_LAUNCH_H */ | |
64 | ||
ef416fc2 | 65 | #if defined(HAVE_MALLOC_H) && defined(HAVE_MALLINFO) |
66 | # include <malloc.h> | |
67 | #endif /* HAVE_MALLOC_H && HAVE_MALLINFO */ | |
fa73b229 | 68 | #ifdef HAVE_NOTIFY_H |
69 | # include <notify.h> | |
70 | #endif /* HAVE_NOTIFY_H */ | |
ef416fc2 | 71 | |
72 | ||
73 | /* | |
74 | * Local functions... | |
75 | */ | |
76 | ||
a4d04587 | 77 | #ifdef HAVE_LAUNCHD |
78 | static void launchd_checkin(void); | |
79 | static void launchd_reload(void); | |
80 | static int launchd_sync_conf(void); | |
81 | #endif /* HAVE_LAUNCHD */ | |
82 | ||
ef416fc2 | 83 | static void parent_handler(int sig); |
84 | static void process_children(void); | |
85 | static void sigchld_handler(int sig); | |
86 | static void sighup_handler(int sig); | |
87 | static void sigterm_handler(int sig); | |
88 | static long select_timeout(int fds); | |
a4d04587 | 89 | static void usage(int status); |
ef416fc2 | 90 | |
91 | ||
92 | /* | |
93 | * Local globals... | |
94 | */ | |
95 | ||
96 | static int parent_signal = 0; /* Set to signal number from child */ | |
97 | static int holdcount = 0; /* Number of times "hold" was called */ | |
98 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
99 | static sigset_t holdmask; /* Old POSIX signal mask */ | |
100 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
101 | static int dead_children = 0; /* Dead children? */ | |
102 | static int stop_scheduler = 0; /* Should the scheduler stop? */ | |
103 | ||
104 | ||
105 | /* | |
106 | * 'main()' - Main entry for the CUPS scheduler. | |
107 | */ | |
108 | ||
109 | int /* O - Exit status */ | |
bd7854cb | 110 | main(int argc, /* I - Number of command-line args */ |
ef416fc2 | 111 | char *argv[]) /* I - Command-line arguments */ |
112 | { | |
113 | int i; /* Looping var */ | |
114 | char *opt; /* Option character */ | |
115 | int fg; /* Run in the foreground */ | |
bd7854cb | 116 | int fds; /* Number of ready descriptors */ |
ef416fc2 | 117 | fd_set *input, /* Input set for select() */ |
118 | *output; /* Output set for select() */ | |
119 | cupsd_client_t *con; /* Current client */ | |
120 | cupsd_job_t *job; /* Current job */ | |
121 | cupsd_listener_t *lis; /* Current listener */ | |
122 | time_t current_time, /* Current time */ | |
a4d04587 | 123 | activity, /* Client activity timer */ |
ef416fc2 | 124 | browse_time, /* Next browse send time */ |
125 | senddoc_time, /* Send-Document time */ | |
126 | expire_time; /* Subscription expire time */ | |
ef416fc2 | 127 | time_t mallinfo_time; /* Malloc information time */ |
4400e98d | 128 | size_t string_count, /* String count */ |
129 | alloc_bytes, /* Allocated string bytes */ | |
130 | total_bytes; /* Total string bytes */ | |
ef416fc2 | 131 | struct timeval timeout; /* select() timeout */ |
132 | struct rlimit limit; /* Runtime limit */ | |
133 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
134 | struct sigaction action; /* Actions for POSIX signals */ | |
135 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
136 | #ifdef __sgi | |
137 | cups_file_t *fp; /* Fake lpsched lock file */ | |
138 | struct stat statbuf; /* Needed for checking lpsched FIFO */ | |
139 | #endif /* __sgi */ | |
a4d04587 | 140 | #if HAVE_LAUNCHD |
4400e98d | 141 | int launchd_idle_exit; |
a4d04587 | 142 | /* Idle exit on select timeout? */ |
143 | #endif /* HAVE_LAUNCHD */ | |
ef416fc2 | 144 | |
145 | ||
146 | /* | |
147 | * Check for command-line arguments... | |
148 | */ | |
149 | ||
4400e98d | 150 | fg = 0; |
ef416fc2 | 151 | |
152 | for (i = 1; i < argc; i ++) | |
153 | if (argv[i][0] == '-') | |
154 | for (opt = argv[i] + 1; *opt != '\0'; opt ++) | |
155 | switch (*opt) | |
156 | { | |
157 | case 'c' : /* Configuration file */ | |
158 | i ++; | |
159 | if (i >= argc) | |
a4d04587 | 160 | { |
161 | _cupsLangPuts(stderr, _("cupsd: Expected config filename " | |
162 | "after \"-c\" option!\n")); | |
163 | usage(1); | |
164 | } | |
ef416fc2 | 165 | |
166 | if (argv[i][0] == '/') | |
167 | { | |
168 | /* | |
169 | * Absolute directory... | |
170 | */ | |
171 | ||
172 | cupsdSetString(&ConfigurationFile, argv[i]); | |
173 | } | |
174 | else | |
175 | { | |
176 | /* | |
177 | * Relative directory... | |
178 | */ | |
179 | ||
09ec0018 | 180 | char *current; /* Current directory */ |
ef416fc2 | 181 | |
182 | ||
09ec0018 | 183 | /* |
184 | * Allocate a buffer for the current working directory to | |
185 | * reduce run-time stack usage; this approximates the | |
186 | * behavior of some implementations of getcwd() when they | |
187 | * are passed a NULL pointer. | |
188 | */ | |
189 | ||
190 | current = malloc(1024); | |
191 | getcwd(current, 1024); | |
192 | ||
ef416fc2 | 193 | cupsdSetStringf(&ConfigurationFile, "%s/%s", current, argv[i]); |
09ec0018 | 194 | |
195 | free(current); | |
ef416fc2 | 196 | } |
197 | break; | |
198 | ||
199 | case 'f' : /* Run in foreground... */ | |
200 | fg = 1; | |
201 | break; | |
202 | ||
bd7854cb | 203 | case 'F' : /* Run in foreground, but disconnect from terminal... */ |
ef416fc2 | 204 | fg = -1; |
205 | break; | |
206 | ||
a4d04587 | 207 | case 'h' : /* Show usage/help */ |
208 | usage(0); | |
209 | break; | |
210 | ||
211 | case 'l' : /* Started by launchd... */ | |
212 | #ifdef HAVE_LAUNCHD | |
4400e98d | 213 | Launchd = 1; |
a4d04587 | 214 | fg = 1; |
215 | #else | |
216 | _cupsLangPuts(stderr, _("cupsd: launchd(8) support not compiled " | |
217 | "in, running in normal mode.\n")); | |
218 | fg = 0; | |
219 | #endif /* HAVE_LAUNCHD */ | |
220 | break; | |
221 | ||
a74454a7 | 222 | case 'p' : /* Stop immediately for profiling */ |
223 | puts("Warning: -p option is for internal testing use only!"); | |
224 | stop_scheduler = 1; | |
225 | fg = 1; | |
226 | break; | |
227 | ||
ef416fc2 | 228 | default : /* Unknown option */ |
a4d04587 | 229 | _cupsLangPrintf(stderr, _("cupsd: Unknown option \"%c\" - " |
230 | "aborting!\n"), *opt); | |
231 | usage(1); | |
ef416fc2 | 232 | break; |
233 | } | |
234 | else | |
235 | { | |
a4d04587 | 236 | _cupsLangPrintf(stderr, _("cupsd: Unknown argument \"%s\" - aborting!\n"), |
237 | argv[i]); | |
238 | usage(1); | |
ef416fc2 | 239 | } |
240 | ||
241 | if (!ConfigurationFile) | |
242 | cupsdSetString(&ConfigurationFile, CUPS_SERVERROOT "/cupsd.conf"); | |
243 | ||
244 | /* | |
245 | * If the user hasn't specified "-f", run in the background... | |
246 | */ | |
247 | ||
248 | if (!fg) | |
249 | { | |
250 | /* | |
251 | * Setup signal handlers for the parent... | |
252 | */ | |
253 | ||
254 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
255 | sigset(SIGUSR1, parent_handler); | |
256 | sigset(SIGCHLD, parent_handler); | |
257 | ||
258 | sigset(SIGHUP, SIG_IGN); | |
259 | #elif defined(HAVE_SIGACTION) | |
260 | memset(&action, 0, sizeof(action)); | |
261 | sigemptyset(&action.sa_mask); | |
262 | sigaddset(&action.sa_mask, SIGUSR1); | |
263 | action.sa_handler = parent_handler; | |
264 | sigaction(SIGUSR1, &action, NULL); | |
265 | sigaction(SIGCHLD, &action, NULL); | |
266 | ||
267 | sigemptyset(&action.sa_mask); | |
268 | action.sa_handler = SIG_IGN; | |
269 | sigaction(SIGHUP, &action, NULL); | |
270 | #else | |
271 | signal(SIGUSR1, parent_handler); | |
272 | signal(SIGCLD, parent_handler); | |
273 | ||
274 | signal(SIGHUP, SIG_IGN); | |
275 | #endif /* HAVE_SIGSET */ | |
276 | ||
277 | if (fork() > 0) | |
278 | { | |
279 | /* | |
280 | * OK, wait for the child to startup and send us SIGUSR1 or to crash | |
281 | * and the OS send us SIGCHLD... We also need to ignore SIGHUP which | |
282 | * might be sent by the init script to restart the scheduler... | |
283 | */ | |
284 | ||
285 | for (; parent_signal == 0;) | |
286 | sleep(1); | |
287 | ||
288 | if (parent_signal == SIGUSR1) | |
289 | return (0); | |
290 | ||
291 | if (wait(&i) < 0) | |
292 | { | |
293 | perror("cupsd"); | |
294 | return (1); | |
295 | } | |
296 | else if (WIFEXITED(i)) | |
297 | { | |
bd7854cb | 298 | fprintf(stderr, "cupsd: Child exited with status %d!\n", |
299 | WEXITSTATUS(i)); | |
ef416fc2 | 300 | return (2); |
301 | } | |
302 | else | |
303 | { | |
304 | fprintf(stderr, "cupsd: Child exited on signal %d!\n", WTERMSIG(i)); | |
305 | return (3); | |
306 | } | |
307 | } | |
308 | } | |
309 | ||
310 | if (fg < 1) | |
311 | { | |
312 | /* | |
313 | * Make sure we aren't tying up any filesystems... | |
314 | */ | |
315 | ||
316 | chdir("/"); | |
317 | ||
318 | #ifndef DEBUG | |
319 | /* | |
320 | * Disable core dumps... | |
321 | */ | |
322 | ||
323 | getrlimit(RLIMIT_CORE, &limit); | |
324 | limit.rlim_cur = 0; | |
325 | setrlimit(RLIMIT_CORE, &limit); | |
326 | ||
327 | /* | |
328 | * Disconnect from the controlling terminal... | |
329 | */ | |
330 | ||
331 | setsid(); | |
332 | ||
333 | /* | |
334 | * Close all open files... | |
335 | */ | |
336 | ||
337 | getrlimit(RLIMIT_NOFILE, &limit); | |
338 | ||
339 | for (i = 0; i < limit.rlim_cur; i ++) | |
340 | close(i); | |
341 | #endif /* DEBUG */ | |
342 | } | |
343 | ||
344 | /* | |
345 | * Set the timezone info... | |
346 | */ | |
347 | ||
348 | tzset(); | |
349 | ||
350 | #ifdef LC_TIME | |
351 | setlocale(LC_TIME, ""); | |
352 | #endif /* LC_TIME */ | |
353 | ||
354 | /* | |
355 | * Set the maximum number of files... | |
356 | */ | |
357 | ||
358 | getrlimit(RLIMIT_NOFILE, &limit); | |
359 | ||
f7faf1f5 | 360 | if (limit.rlim_max > FD_SETSIZE) |
361 | MaxFDs = FD_SETSIZE; | |
ef416fc2 | 362 | else |
363 | MaxFDs = limit.rlim_max; | |
364 | ||
365 | limit.rlim_cur = MaxFDs; | |
366 | ||
367 | setrlimit(RLIMIT_NOFILE, &limit); | |
368 | ||
369 | /* | |
370 | * Allocate memory for the input and output sets... | |
371 | */ | |
372 | ||
373 | SetSize = (MaxFDs + 31) / 8 + 4; | |
374 | if (SetSize < sizeof(fd_set)) | |
375 | SetSize = sizeof(fd_set); | |
376 | ||
377 | InputSet = (fd_set *)calloc(1, SetSize); | |
378 | OutputSet = (fd_set *)calloc(1, SetSize); | |
379 | input = (fd_set *)calloc(1, SetSize); | |
380 | output = (fd_set *)calloc(1, SetSize); | |
381 | ||
382 | if (InputSet == NULL || OutputSet == NULL || input == NULL || output == NULL) | |
383 | { | |
384 | syslog(LOG_LPR, "Unable to allocate memory for select() sets - exiting!"); | |
385 | return (1); | |
386 | } | |
387 | ||
388 | /* | |
389 | * Read configuration... | |
390 | */ | |
391 | ||
392 | if (!cupsdReadConfiguration()) | |
393 | { | |
394 | syslog(LOG_LPR, "Unable to read configuration file \'%s\' - exiting!", | |
395 | ConfigurationFile); | |
396 | return (1); | |
397 | } | |
398 | ||
a4d04587 | 399 | #if HAVE_LAUNCHD |
4400e98d | 400 | if (Launchd) |
a4d04587 | 401 | { |
402 | /* | |
403 | * If we were started by launchd make sure the cupsd plist file contains the | |
404 | * same listeners as cupsd.conf; If it didn't then reload it before getting | |
405 | * the list of listening file descriptors... | |
406 | */ | |
407 | ||
408 | if (launchd_sync_conf()) | |
409 | { | |
410 | launchd_reload(); | |
411 | ||
412 | /* | |
413 | * Until rdar://3854821 is fixed we have to exit after the reload... | |
414 | */ | |
415 | ||
416 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "Exiting on launchd_reload"); | |
417 | exit(0); | |
418 | } | |
419 | ||
420 | launchd_checkin(); | |
421 | } | |
422 | #endif /* HAVE_LAUNCHD */ | |
423 | ||
424 | /* | |
425 | * Startup the server... | |
426 | */ | |
427 | ||
428 | cupsdStartServer(); | |
429 | ||
ef416fc2 | 430 | /* |
431 | * Catch hangup and child signals and ignore broken pipes... | |
432 | */ | |
433 | ||
434 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
e1d6a774 | 435 | sigset(SIGCHLD, sigchld_handler); |
4744bd90 | 436 | sigset(SIGHUP, sighup_handler); |
ef416fc2 | 437 | sigset(SIGPIPE, SIG_IGN); |
438 | sigset(SIGTERM, sigterm_handler); | |
439 | #elif defined(HAVE_SIGACTION) | |
440 | memset(&action, 0, sizeof(action)); | |
441 | ||
e1d6a774 | 442 | sigemptyset(&action.sa_mask); |
443 | sigaddset(&action.sa_mask, SIGTERM); | |
444 | sigaddset(&action.sa_mask, SIGCHLD); | |
445 | action.sa_handler = sigchld_handler; | |
446 | sigaction(SIGCHLD, &action, NULL); | |
447 | ||
ef416fc2 | 448 | sigemptyset(&action.sa_mask); |
449 | sigaddset(&action.sa_mask, SIGHUP); | |
4744bd90 | 450 | action.sa_handler = sighup_handler; |
ef416fc2 | 451 | sigaction(SIGHUP, &action, NULL); |
452 | ||
453 | sigemptyset(&action.sa_mask); | |
454 | action.sa_handler = SIG_IGN; | |
455 | sigaction(SIGPIPE, &action, NULL); | |
456 | ||
457 | sigemptyset(&action.sa_mask); | |
458 | sigaddset(&action.sa_mask, SIGTERM); | |
459 | sigaddset(&action.sa_mask, SIGCHLD); | |
460 | action.sa_handler = sigterm_handler; | |
461 | sigaction(SIGTERM, &action, NULL); | |
462 | #else | |
e1d6a774 | 463 | signal(SIGCLD, sigchld_handler); /* No, SIGCLD isn't a typo... */ |
4744bd90 | 464 | signal(SIGHUP, sighup_handler); |
ef416fc2 | 465 | signal(SIGPIPE, SIG_IGN); |
466 | signal(SIGTERM, sigterm_handler); | |
467 | #endif /* HAVE_SIGSET */ | |
468 | ||
469 | #ifdef __sgi | |
470 | /* | |
471 | * Try to create a fake lpsched lock file if one is not already there. | |
472 | * Some Adobe applications need it under IRIX in order to enable | |
473 | * printing... | |
474 | */ | |
475 | ||
476 | if ((fp = cupsFileOpen("/var/spool/lp/SCHEDLOCK", "w")) == NULL) | |
477 | { | |
478 | syslog(LOG_LPR, "Unable to create fake lpsched lock file " | |
479 | "\"/var/spool/lp/SCHEDLOCK\"\' - %s!", | |
480 | strerror(errno)); | |
481 | } | |
482 | else | |
483 | { | |
484 | fchmod(cupsFileNumber(fp), 0644); | |
485 | fchown(cupsFileNumber(fp), User, Group); | |
486 | ||
487 | cupsFileClose(fp); | |
488 | } | |
489 | #endif /* __sgi */ | |
490 | ||
491 | /* | |
492 | * Initialize authentication certificates... | |
493 | */ | |
494 | ||
495 | cupsdInitCerts(); | |
496 | ||
497 | /* | |
498 | * If we are running in the background, signal the parent process that | |
499 | * we are up and running... | |
500 | */ | |
501 | ||
502 | if (!fg) | |
503 | { | |
504 | /* | |
505 | * Send a signal to the parent process, but only if the parent is | |
506 | * not PID 1 (init). This avoids accidentally shutting down the | |
507 | * system on OpenBSD if you CTRL-C the server before it is up... | |
508 | */ | |
509 | ||
510 | i = getppid(); /* Save parent PID to avoid race condition */ | |
511 | ||
512 | if (i != 1) | |
513 | kill(i, SIGUSR1); | |
514 | } | |
515 | ||
e1d6a774 | 516 | #ifdef __APPLE__ |
09ec0018 | 517 | /* |
518 | * Start power management framework... | |
519 | */ | |
520 | ||
521 | cupsdStartSystemMonitor(); | |
e1d6a774 | 522 | #endif /* __APPLE__ */ |
ef416fc2 | 523 | |
524 | /* | |
525 | * Start any pending print jobs... | |
526 | */ | |
527 | ||
528 | cupsdCheckJobs(); | |
529 | ||
530 | /* | |
531 | * Loop forever... | |
532 | */ | |
533 | ||
ef416fc2 | 534 | mallinfo_time = 0; |
ef416fc2 | 535 | browse_time = time(NULL); |
536 | senddoc_time = time(NULL); | |
537 | expire_time = time(NULL); | |
538 | fds = 1; | |
539 | ||
540 | while (!stop_scheduler) | |
541 | { | |
542 | #ifdef DEBUG | |
543 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
544 | "main: Top of loop, dead_children=%d, NeedReload=%d", | |
545 | dead_children, NeedReload); | |
546 | #endif /* DEBUG */ | |
547 | ||
548 | /* | |
549 | * Check if there are dead children to handle... | |
550 | */ | |
551 | ||
552 | if (dead_children) | |
553 | process_children(); | |
554 | ||
555 | /* | |
556 | * Check if we need to load the server configuration file... | |
557 | */ | |
558 | ||
559 | if (NeedReload) | |
560 | { | |
561 | /* | |
562 | * Close any idle clients... | |
563 | */ | |
564 | ||
bd7854cb | 565 | if (cupsArrayCount(Clients) > 0) |
ef416fc2 | 566 | { |
bd7854cb | 567 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
568 | con; | |
569 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 570 | if (con->http.state == HTTP_WAITING) |
ef416fc2 | 571 | cupsdCloseClient(con); |
ef416fc2 | 572 | else |
573 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
574 | ||
575 | cupsdPauseListening(); | |
576 | } | |
577 | ||
578 | /* | |
579 | * Check for any active jobs... | |
580 | */ | |
581 | ||
582 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); | |
583 | job; | |
584 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
bd7854cb | 585 | if (job->state_value == IPP_JOB_PROCESSING) |
ef416fc2 | 586 | break; |
587 | ||
588 | /* | |
589 | * Restart if all clients are closed and all jobs finished, or | |
590 | * if the reload timeout has elapsed... | |
591 | */ | |
592 | ||
bd7854cb | 593 | if ((cupsArrayCount(Clients) == 0 && |
594 | (!job || NeedReload != RELOAD_ALL)) || | |
ef416fc2 | 595 | (time(NULL) - ReloadTime) >= ReloadTimeout) |
596 | { | |
a4d04587 | 597 | /* |
598 | * Shutdown the server... | |
599 | */ | |
600 | ||
601 | cupsdStopServer(); | |
602 | ||
603 | /* | |
604 | * Read configuration... | |
605 | */ | |
606 | ||
ef416fc2 | 607 | if (!cupsdReadConfiguration()) |
608 | { | |
609 | syslog(LOG_LPR, "Unable to read configuration file \'%s\' - exiting!", | |
610 | ConfigurationFile); | |
611 | break; | |
612 | } | |
a4d04587 | 613 | |
614 | #if HAVE_LAUNCHD | |
4400e98d | 615 | if (Launchd) |
a4d04587 | 616 | { |
617 | if (launchd_sync_conf()) | |
618 | { | |
619 | launchd_reload(); | |
620 | ||
621 | /* | |
622 | * Until rdar://3854821 is fixed we have to exit after the reload... | |
623 | */ | |
624 | ||
625 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "Exiting on launchd_reload"); | |
626 | stop_scheduler = 1; | |
627 | break; | |
628 | } | |
629 | ||
630 | launchd_checkin(); | |
631 | } | |
632 | #endif /* HAVE_LAUNCHD */ | |
633 | ||
634 | /* | |
635 | * Startup the server... | |
636 | */ | |
637 | ||
638 | cupsdStartServer(); | |
ef416fc2 | 639 | } |
640 | } | |
641 | ||
642 | /* | |
643 | * Check for available input or ready output. If select() returns | |
644 | * 0 or -1, something bad happened and we should exit immediately. | |
645 | * | |
646 | * Note that we at least have one listening socket open at all | |
647 | * times. | |
648 | */ | |
649 | ||
650 | memcpy(input, InputSet, SetSize); | |
651 | memcpy(output, OutputSet, SetSize); | |
652 | ||
653 | timeout.tv_sec = select_timeout(fds); | |
654 | timeout.tv_usec = 0; | |
655 | ||
a4d04587 | 656 | #if HAVE_LAUNCHD |
657 | /* | |
658 | * If no other work is scheduled and we're being controlled by | |
659 | * launchd(8) then timeout after 'LaunchdTimeout' seconds of | |
660 | * inactivity... | |
661 | */ | |
662 | ||
d09495fa | 663 | if (timeout.tv_sec == 86400 && Launchd && LaunchdTimeout && !NumPolled && |
a4d04587 | 664 | (!Browsing || !(BrowseLocalProtocols & BROWSE_DNSSD) || |
665 | cupsArrayCount(Printers) == 0)) | |
666 | { | |
667 | timeout.tv_sec = LaunchdTimeout; | |
668 | launchd_idle_exit = 1; | |
669 | } | |
670 | else | |
671 | launchd_idle_exit = 0; | |
672 | #endif /* HAVE_LAUNCHD */ | |
673 | ||
923edb68 | 674 | if (timeout.tv_sec < 86400) /* Only use timeout for < 1 day */ |
675 | fds = select(MaxFDs, input, output, NULL, &timeout); | |
676 | else | |
677 | fds = select(MaxFDs, input, output, NULL, NULL); | |
678 | ||
679 | if (fds < 0) | |
ef416fc2 | 680 | { |
681 | char s[16384], /* String buffer */ | |
682 | *sptr; /* Pointer into buffer */ | |
683 | int slen; /* Length of string buffer */ | |
684 | ||
685 | ||
686 | /* | |
687 | * Got an error from select! | |
688 | */ | |
689 | ||
690 | if (errno == EINTR) /* Just interrupted by a signal */ | |
691 | continue; | |
692 | ||
693 | /* | |
694 | * Log all sorts of debug info to help track down the problem. | |
695 | */ | |
696 | ||
697 | cupsdLogMessage(CUPSD_LOG_EMERG, "select() failed - %s!", | |
698 | strerror(errno)); | |
699 | ||
700 | strcpy(s, "InputSet ="); | |
701 | slen = 10; | |
702 | sptr = s + 10; | |
703 | ||
704 | for (i = 0; i < MaxFDs; i ++) | |
705 | if (FD_ISSET(i, InputSet)) | |
706 | { | |
707 | snprintf(sptr, sizeof(s) - slen, " %d", i); | |
708 | slen += strlen(sptr); | |
709 | sptr += strlen(sptr); | |
710 | } | |
711 | ||
a74454a7 | 712 | cupsdLogMessage(CUPSD_LOG_EMERG, "%s", s); |
ef416fc2 | 713 | |
714 | strcpy(s, "OutputSet ="); | |
715 | slen = 11; | |
716 | sptr = s + 11; | |
717 | ||
718 | for (i = 0; i < MaxFDs; i ++) | |
719 | if (FD_ISSET(i, OutputSet)) | |
720 | { | |
721 | snprintf(sptr, sizeof(s) - slen, " %d", i); | |
722 | slen += strlen(sptr); | |
723 | sptr += strlen(sptr); | |
724 | } | |
725 | ||
a74454a7 | 726 | cupsdLogMessage(CUPSD_LOG_EMERG, "%s", s); |
ef416fc2 | 727 | |
bd7854cb | 728 | for (i = 0, con = (cupsd_client_t *)cupsArrayFirst(Clients); |
729 | con; | |
730 | i ++, con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 731 | cupsdLogMessage(CUPSD_LOG_EMERG, |
732 | "Clients[%d] = %d, file = %d, state = %d", | |
733 | i, con->http.fd, con->file, con->http.state); | |
734 | ||
bd7854cb | 735 | for (i = 0, lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); |
736 | lis; | |
737 | i ++, lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
ef416fc2 | 738 | cupsdLogMessage(CUPSD_LOG_EMERG, "Listeners[%d] = %d", i, lis->fd); |
739 | ||
740 | cupsdLogMessage(CUPSD_LOG_EMERG, "BrowseSocket = %d", BrowseSocket); | |
741 | ||
923edb68 | 742 | cupsdLogMessage(CUPSD_LOG_EMERG, "CGIPipes[0] = %d", CGIPipes[0]); |
743 | ||
09ec0018 | 744 | #ifdef __APPLE__ |
745 | cupsdLogMessage(CUPSD_LOG_EMERG, "SysEventPipes[0] = %d", | |
746 | SysEventPipes[0]); | |
747 | #endif /* __APPLE__ */ | |
748 | ||
ef416fc2 | 749 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); |
750 | job; | |
751 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
752 | cupsdLogMessage(CUPSD_LOG_EMERG, "Jobs[%d] = %d < [%d %d] > [%d %d]", | |
753 | job->id, | |
754 | job->status_buffer ? job->status_buffer->fd : -1, | |
755 | job->print_pipes[0], job->print_pipes[1], | |
756 | job->back_pipes[0], job->back_pipes[1]); | |
757 | break; | |
758 | } | |
759 | ||
760 | current_time = time(NULL); | |
761 | ||
a4d04587 | 762 | #if HAVE_LAUNCHD |
763 | /* | |
764 | * If no other work was scheduled and we're being controlled by launchd(8) | |
765 | * then timeout after 'LaunchdTimeout' seconds of inactivity... | |
766 | */ | |
767 | ||
768 | if (!fds && launchd_idle_exit) | |
769 | { | |
770 | cupsdLogMessage(CUPSD_LOG_INFO, | |
771 | "Printer sharing is off and there are no jobs pending, " | |
772 | "will restart on demand."); | |
773 | stop_scheduler = 1; | |
774 | break; | |
775 | } | |
776 | #endif /* HAVE_LAUNCHD */ | |
777 | ||
ef416fc2 | 778 | /* |
779 | * Check for status info from job filters... | |
780 | */ | |
781 | ||
782 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); | |
783 | job; | |
784 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
785 | if (job->status_buffer && FD_ISSET(job->status_buffer->fd, input)) | |
786 | { | |
787 | /* | |
788 | * Clear the input bit to avoid updating the next job | |
789 | * using the same status pipe file descriptor... | |
790 | */ | |
791 | ||
792 | FD_CLR(job->status_buffer->fd, input); | |
793 | ||
794 | /* | |
795 | * Read any status messages from the filters... | |
796 | */ | |
797 | ||
798 | cupsdUpdateJob(job); | |
799 | } | |
800 | ||
801 | /* | |
802 | * Update CGI messages as needed... | |
803 | */ | |
804 | ||
805 | if (CGIPipes[0] >= 0 && FD_ISSET(CGIPipes[0], input)) | |
806 | cupsdUpdateCGI(); | |
807 | ||
09ec0018 | 808 | /* |
809 | * Handle system management events as needed... | |
810 | */ | |
811 | ||
812 | #ifdef __APPLE__ | |
813 | if (SysEventPipes[0] >= 0 && FD_ISSET(SysEventPipes[0], input)) | |
814 | cupsdUpdateSystemMonitor(); | |
815 | #endif /* __APPLE__ */ | |
816 | ||
ef416fc2 | 817 | /* |
818 | * Update notifier messages as needed... | |
819 | */ | |
820 | ||
821 | if (NotifierPipes[0] >= 0 && FD_ISSET(NotifierPipes[0], input)) | |
822 | cupsdUpdateNotifierStatus(); | |
823 | ||
824 | /* | |
bd7854cb | 825 | * Expire subscriptions and unload completed jobs as needed... |
ef416fc2 | 826 | */ |
827 | ||
bd7854cb | 828 | if (current_time > expire_time) |
ef416fc2 | 829 | { |
bd7854cb | 830 | if (cupsArrayCount(Subscriptions) > 0) |
831 | cupsdExpireSubscriptions(NULL, NULL); | |
832 | ||
833 | cupsdUnloadCompletedJobs(); | |
ef416fc2 | 834 | |
835 | expire_time = current_time; | |
836 | } | |
837 | ||
838 | /* | |
839 | * Update the browse list as needed... | |
840 | */ | |
841 | ||
fa73b229 | 842 | if (Browsing && BrowseRemoteProtocols) |
ef416fc2 | 843 | { |
844 | if (BrowseSocket >= 0 && FD_ISSET(BrowseSocket, input)) | |
845 | cupsdUpdateCUPSBrowse(); | |
846 | ||
847 | if (PollPipe >= 0 && FD_ISSET(PollPipe, input)) | |
848 | cupsdUpdatePolling(); | |
849 | ||
850 | #ifdef HAVE_LIBSLP | |
b423cd4c | 851 | if ((BrowseRemoteProtocols & BROWSE_SLP) && |
ef416fc2 | 852 | BrowseSLPRefresh <= current_time) |
853 | cupsdUpdateSLPBrowse(); | |
854 | #endif /* HAVE_LIBSLP */ | |
b423cd4c | 855 | |
856 | #ifdef HAVE_LDAP | |
857 | if ((BrowseRemoteProtocols & BROWSE_LDAP) && | |
858 | BrowseLDAPRefresh <= current_time) | |
859 | cupsdUpdateLDAPBrowse(); | |
860 | #endif /* HAVE_LDAP */ | |
fa73b229 | 861 | } |
ef416fc2 | 862 | |
fa73b229 | 863 | if (Browsing && BrowseLocalProtocols && current_time > browse_time) |
864 | { | |
865 | cupsdSendBrowseList(); | |
866 | browse_time = current_time; | |
ef416fc2 | 867 | } |
868 | ||
869 | /* | |
870 | * Check for new connections on the "listen" sockets... | |
871 | */ | |
872 | ||
bd7854cb | 873 | for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); |
874 | lis; | |
875 | lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
ef416fc2 | 876 | if (lis->fd >= 0 && FD_ISSET(lis->fd, input)) |
877 | { | |
878 | FD_CLR(lis->fd, input); | |
879 | cupsdAcceptClient(lis); | |
880 | } | |
881 | ||
882 | /* | |
883 | * Check for new data on the client sockets... | |
884 | */ | |
885 | ||
bd7854cb | 886 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
887 | con; | |
888 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 889 | { |
890 | /* | |
891 | * Process the input buffer... | |
892 | */ | |
893 | ||
894 | if (FD_ISSET(con->http.fd, input) || con->http.used) | |
895 | { | |
bd7854cb | 896 | int fd = con->file; |
897 | ||
898 | ||
ef416fc2 | 899 | FD_CLR(con->http.fd, input); |
900 | ||
901 | if (!cupsdReadClient(con)) | |
902 | { | |
bd7854cb | 903 | if (fd >= 0) |
904 | FD_CLR(fd, input); | |
ef416fc2 | 905 | |
ef416fc2 | 906 | continue; |
907 | } | |
908 | } | |
909 | ||
910 | /* | |
911 | * Write data as needed... | |
912 | */ | |
913 | ||
914 | if (con->pipe_pid && FD_ISSET(con->file, input)) | |
915 | { | |
916 | /* | |
917 | * Keep track of pending input from the file/pipe separately | |
918 | * so that we don't needlessly spin on select() when the web | |
919 | * client is not ready to receive data... | |
920 | */ | |
921 | ||
922 | FD_CLR(con->file, input); | |
923 | con->file_ready = 1; | |
924 | ||
925 | #ifdef DEBUG | |
926 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "main: Data ready file %d!", | |
927 | con->file); | |
928 | #endif /* DEBUG */ | |
929 | ||
930 | if (!FD_ISSET(con->http.fd, output)) | |
931 | { | |
932 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
933 | "main: Removing fd %d from InputSet...", con->file); | |
923edb68 | 934 | FD_CLR(con->file, input); |
ef416fc2 | 935 | FD_CLR(con->file, InputSet); |
936 | } | |
937 | } | |
938 | ||
939 | if (FD_ISSET(con->http.fd, output)) | |
940 | { | |
941 | FD_CLR(con->http.fd, output); | |
942 | ||
943 | if (!con->pipe_pid || con->file_ready) | |
944 | if (!cupsdWriteClient(con)) | |
ef416fc2 | 945 | continue; |
ef416fc2 | 946 | } |
947 | ||
948 | /* | |
949 | * Check the activity and close old clients... | |
950 | */ | |
951 | ||
952 | activity = current_time - Timeout; | |
953 | if (con->http.activity < activity && !con->pipe_pid) | |
954 | { | |
955 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
956 | "Closing client %d after %d seconds of inactivity...", | |
957 | con->http.fd, Timeout); | |
958 | ||
959 | cupsdCloseClient(con); | |
ef416fc2 | 960 | continue; |
961 | } | |
962 | } | |
963 | ||
964 | /* | |
965 | * Update any pending multi-file documents... | |
966 | */ | |
967 | ||
968 | if ((current_time - senddoc_time) >= 10) | |
969 | { | |
970 | cupsdCheckJobs(); | |
971 | senddoc_time = current_time; | |
972 | } | |
973 | ||
ef416fc2 | 974 | /* |
975 | * Log memory usage every minute... | |
976 | */ | |
977 | ||
bd7854cb | 978 | if ((current_time - mallinfo_time) >= 60 && LogLevel >= CUPSD_LOG_DEBUG2) |
ef416fc2 | 979 | { |
4400e98d | 980 | #ifdef HAVE_MALLINFO |
ef416fc2 | 981 | struct mallinfo mem; /* Malloc information */ |
982 | ||
983 | ||
984 | mem = mallinfo(); | |
bd7854cb | 985 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
ef416fc2 | 986 | "mallinfo: arena = %d, used = %d, free = %d\n", |
987 | mem.arena, mem.usmblks + mem.uordblks, | |
988 | mem.fsmblks + mem.fordblks); | |
4400e98d | 989 | #endif /* HAVE_MALLINFO */ |
990 | ||
757d2cad | 991 | string_count = _cupsStrStatistics(&alloc_bytes, &total_bytes); |
bd7854cb | 992 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
4400e98d | 993 | "stringpool: " CUPS_LLFMT " strings, " |
994 | CUPS_LLFMT " allocated, " CUPS_LLFMT " total bytes", | |
995 | CUPS_LLCAST string_count, CUPS_LLCAST alloc_bytes, | |
996 | CUPS_LLCAST total_bytes); | |
997 | ||
ef416fc2 | 998 | mallinfo_time = current_time; |
999 | } | |
ef416fc2 | 1000 | |
1001 | /* | |
89d46774 | 1002 | * Update the root certificate once every 5 minutes if we have client |
1003 | * connections... | |
ef416fc2 | 1004 | */ |
1005 | ||
1006 | if ((current_time - RootCertTime) >= RootCertDuration && RootCertDuration && | |
89d46774 | 1007 | !RunUser && cupsArrayCount(Clients)) |
ef416fc2 | 1008 | { |
1009 | /* | |
1010 | * Update the root certificate... | |
1011 | */ | |
1012 | ||
1013 | cupsdDeleteCert(0); | |
1014 | cupsdAddCert(0, "root"); | |
1015 | } | |
fa73b229 | 1016 | |
1017 | /* | |
1018 | * Handle OS-specific event notification for any events that have | |
1019 | * accumulated. Don't send these more than once a second... | |
1020 | */ | |
1021 | ||
e53920b9 | 1022 | if (LastEvent) |
fa73b229 | 1023 | { |
1024 | #ifdef HAVE_NOTIFY_POST | |
1025 | if (LastEvent & CUPSD_EVENT_PRINTER_CHANGED) | |
1026 | { | |
e00b005a | 1027 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1028 | "notify_post(\"com.apple.printerListChange\")"); |
1029 | notify_post("com.apple.printerListChange"); | |
1030 | } | |
1031 | ||
1032 | if (LastEvent & CUPSD_EVENT_PRINTER_STATE_CHANGED) | |
1033 | { | |
e00b005a | 1034 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1035 | "notify_post(\"com.apple.printerHistoryChange\")"); |
1036 | notify_post("com.apple.printerHistoryChange"); | |
1037 | } | |
1038 | ||
1039 | if (LastEvent & (CUPSD_EVENT_JOB_STATE_CHANGED | | |
1040 | CUPSD_EVENT_JOB_CONFIG_CHANGED | | |
1041 | CUPSD_EVENT_JOB_PROGRESS)) | |
1042 | { | |
e00b005a | 1043 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1044 | "notify_post(\"com.apple.jobChange\")"); |
1045 | notify_post("com.apple.jobChange"); | |
1046 | } | |
1047 | #endif /* HAVE_NOTIFY_POST */ | |
1048 | ||
1049 | /* | |
e53920b9 | 1050 | * Reset the accumulated events... |
fa73b229 | 1051 | */ |
1052 | ||
fa73b229 | 1053 | LastEvent = CUPSD_EVENT_NONE; |
1054 | } | |
ef416fc2 | 1055 | } |
1056 | ||
1057 | /* | |
1058 | * Log a message based on what happened... | |
1059 | */ | |
1060 | ||
1061 | if (stop_scheduler) | |
1062 | cupsdLogMessage(CUPSD_LOG_INFO, "Scheduler shutting down normally."); | |
1063 | else | |
1064 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1065 | "Scheduler shutting down due to program error."); | |
1066 | ||
1067 | /* | |
1068 | * Close all network clients and stop all jobs... | |
1069 | */ | |
1070 | ||
1071 | cupsdStopServer(); | |
1072 | ||
bd7854cb | 1073 | cupsdFreeAllJobs(); |
ef416fc2 | 1074 | |
e1d6a774 | 1075 | #ifdef __APPLE__ |
09ec0018 | 1076 | cupsdStopSystemMonitor(); |
e1d6a774 | 1077 | #endif /* __APPLE__ */ |
09ec0018 | 1078 | |
a4d04587 | 1079 | #ifdef HAVE_LAUNCHD |
1080 | /* | |
1081 | * Update the launchd config file as needed... | |
1082 | */ | |
1083 | ||
1084 | launchd_sync_conf(); | |
1085 | #endif /* HAVE_LAUNCHD */ | |
1086 | ||
ef416fc2 | 1087 | #ifdef __sgi |
1088 | /* | |
1089 | * Remove the fake IRIX lpsched lock file, but only if the existing | |
1090 | * file is not a FIFO which indicates that the real IRIX lpsched is | |
1091 | * running... | |
1092 | */ | |
1093 | ||
1094 | if (!stat("/var/spool/lp/FIFO", &statbuf)) | |
1095 | if (!S_ISFIFO(statbuf.st_mode)) | |
1096 | unlink("/var/spool/lp/SCHEDLOCK"); | |
1097 | #endif /* __sgi */ | |
1098 | ||
1099 | /* | |
1100 | * Free memory used by FD sets and return... | |
1101 | */ | |
1102 | ||
1103 | free(InputSet); | |
1104 | free(OutputSet); | |
1105 | free(input); | |
1106 | free(output); | |
1107 | ||
1108 | return (!stop_scheduler); | |
1109 | } | |
1110 | ||
1111 | ||
1112 | /* | |
1113 | * 'cupsdClosePipe()' - Close a pipe as necessary. | |
1114 | */ | |
1115 | ||
1116 | void | |
1117 | cupsdClosePipe(int *fds) /* I - Pipe file descriptors (2) */ | |
1118 | { | |
1119 | /* | |
1120 | * Close file descriptors as needed... | |
1121 | */ | |
1122 | ||
1123 | if (fds[0] >= 0) | |
1124 | { | |
1125 | close(fds[0]); | |
1126 | fds[0] = -1; | |
1127 | } | |
1128 | ||
1129 | if (fds[1] >= 0) | |
1130 | { | |
1131 | close(fds[1]); | |
1132 | fds[1] = -1; | |
1133 | } | |
1134 | } | |
1135 | ||
1136 | ||
1137 | /* | |
1138 | * 'cupsdOpenPipe()' - Create a pipe which is closed on exec. | |
1139 | */ | |
1140 | ||
1141 | int /* O - 0 on success, -1 on error */ | |
1142 | cupsdOpenPipe(int *fds) /* O - Pipe file descriptors (2) */ | |
1143 | { | |
1144 | /* | |
1145 | * Create the pipe... | |
1146 | */ | |
1147 | ||
1148 | if (pipe(fds)) | |
e1d6a774 | 1149 | { |
1150 | fds[0] = -1; | |
1151 | fds[1] = -1; | |
1152 | ||
ef416fc2 | 1153 | return (-1); |
e1d6a774 | 1154 | } |
ef416fc2 | 1155 | |
1156 | /* | |
1157 | * Set the "close on exec" flag on each end of the pipe... | |
1158 | */ | |
1159 | ||
1160 | if (fcntl(fds[0], F_SETFD, fcntl(fds[0], F_GETFD) | FD_CLOEXEC)) | |
1161 | { | |
1162 | close(fds[0]); | |
1163 | close(fds[1]); | |
e1d6a774 | 1164 | |
1165 | fds[0] = -1; | |
1166 | fds[1] = -1; | |
1167 | ||
ef416fc2 | 1168 | return (-1); |
1169 | } | |
1170 | ||
1171 | if (fcntl(fds[1], F_SETFD, fcntl(fds[1], F_GETFD) | FD_CLOEXEC)) | |
1172 | { | |
1173 | close(fds[0]); | |
1174 | close(fds[1]); | |
e1d6a774 | 1175 | |
1176 | fds[0] = -1; | |
1177 | fds[1] = -1; | |
1178 | ||
ef416fc2 | 1179 | return (-1); |
1180 | } | |
1181 | ||
1182 | /* | |
1183 | * Return 0 indicating success... | |
1184 | */ | |
1185 | ||
1186 | return (0); | |
1187 | } | |
1188 | ||
1189 | ||
ef416fc2 | 1190 | /* |
1191 | * 'cupsdClearString()' - Clear a string. | |
1192 | */ | |
1193 | ||
1194 | void | |
1195 | cupsdClearString(char **s) /* O - String value */ | |
1196 | { | |
1197 | if (s && *s) | |
1198 | { | |
e53920b9 | 1199 | _cupsStrFree(*s); |
ef416fc2 | 1200 | *s = NULL; |
1201 | } | |
1202 | } | |
1203 | ||
1204 | ||
1205 | /* | |
1206 | * 'cupsdHoldSignals()' - Hold child and termination signals. | |
1207 | */ | |
1208 | ||
1209 | void | |
1210 | cupsdHoldSignals(void) | |
1211 | { | |
1212 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
1213 | sigset_t newmask; /* New POSIX signal mask */ | |
1214 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
1215 | ||
1216 | ||
1217 | holdcount ++; | |
1218 | if (holdcount > 1) | |
1219 | return; | |
1220 | ||
1221 | #ifdef HAVE_SIGSET | |
1222 | sighold(SIGTERM); | |
1223 | sighold(SIGCHLD); | |
1224 | #elif defined(HAVE_SIGACTION) | |
1225 | sigemptyset(&newmask); | |
1226 | sigaddset(&newmask, SIGTERM); | |
1227 | sigaddset(&newmask, SIGCHLD); | |
1228 | sigprocmask(SIG_BLOCK, &newmask, &holdmask); | |
1229 | #endif /* HAVE_SIGSET */ | |
1230 | } | |
1231 | ||
1232 | ||
ef416fc2 | 1233 | /* |
1234 | * 'cupsdReleaseSignals()' - Release signals for delivery. | |
1235 | */ | |
1236 | ||
1237 | void | |
1238 | cupsdReleaseSignals(void) | |
1239 | { | |
1240 | holdcount --; | |
1241 | if (holdcount > 0) | |
1242 | return; | |
1243 | ||
1244 | #ifdef HAVE_SIGSET | |
1245 | sigrelse(SIGTERM); | |
1246 | sigrelse(SIGCHLD); | |
1247 | #elif defined(HAVE_SIGACTION) | |
1248 | sigprocmask(SIG_SETMASK, &holdmask, NULL); | |
1249 | #endif /* HAVE_SIGSET */ | |
1250 | } | |
1251 | ||
1252 | ||
1253 | /* | |
1254 | * 'cupsdSetString()' - Set a string value. | |
1255 | */ | |
1256 | ||
1257 | void | |
1258 | cupsdSetString(char **s, /* O - New string */ | |
1259 | const char *v) /* I - String value */ | |
1260 | { | |
1261 | if (!s || *s == v) | |
1262 | return; | |
1263 | ||
1264 | if (*s) | |
e53920b9 | 1265 | _cupsStrFree(*s); |
ef416fc2 | 1266 | |
1267 | if (v) | |
e53920b9 | 1268 | *s = _cupsStrAlloc(v); |
ef416fc2 | 1269 | else |
1270 | *s = NULL; | |
1271 | } | |
1272 | ||
1273 | ||
1274 | /* | |
1275 | * 'cupsdSetStringf()' - Set a formatted string value. | |
1276 | */ | |
1277 | ||
1278 | void | |
1279 | cupsdSetStringf(char **s, /* O - New string */ | |
1280 | const char *f, /* I - Printf-style format string */ | |
1281 | ...) /* I - Additional args as needed */ | |
1282 | { | |
1283 | char v[4096]; /* Formatting string value */ | |
1284 | va_list ap; /* Argument pointer */ | |
1285 | char *olds; /* Old string */ | |
1286 | ||
1287 | ||
1288 | if (!s) | |
1289 | return; | |
1290 | ||
1291 | olds = *s; | |
1292 | ||
1293 | if (f) | |
1294 | { | |
1295 | va_start(ap, f); | |
1296 | vsnprintf(v, sizeof(v), f, ap); | |
1297 | va_end(ap); | |
1298 | ||
e53920b9 | 1299 | *s = _cupsStrAlloc(v); |
ef416fc2 | 1300 | } |
1301 | else | |
1302 | *s = NULL; | |
1303 | ||
1304 | if (olds) | |
e53920b9 | 1305 | _cupsStrFree(olds); |
ef416fc2 | 1306 | } |
1307 | ||
1308 | ||
a4d04587 | 1309 | #ifdef HAVE_LAUNCHD |
1310 | /* | |
1311 | * 'launchd_checkin()' - Check-in with launchd and collect the listening fds. | |
1312 | */ | |
1313 | ||
1314 | static void | |
1315 | launchd_checkin(void) | |
1316 | { | |
1317 | int i, /* Looping var */ | |
bd7854cb | 1318 | count, /* Numebr of listeners */ |
a4d04587 | 1319 | portnum; /* Port number */ |
1320 | launch_data_t ld_msg, /* Launch data message */ | |
1321 | ld_resp, /* Launch data response */ | |
1322 | ld_array, /* Launch data array */ | |
1323 | ld_sockets, /* Launch data sockets dictionary */ | |
a4d04587 | 1324 | tmp; /* Launch data */ |
1325 | cupsd_listener_t *lis; /* Listeners array */ | |
1326 | http_addr_t addr; /* Address variable */ | |
1327 | socklen_t addrlen; /* Length of address */ | |
a4d04587 | 1328 | |
1329 | ||
1330 | cupsdLogMessage(CUPSD_LOG_DEBUG, "launchd_checkin: pid=%d", (int)getpid()); | |
1331 | ||
1332 | /* | |
1333 | * Check-in with launchd... | |
1334 | */ | |
1335 | ||
1336 | ld_msg = launch_data_new_string(LAUNCH_KEY_CHECKIN); | |
1337 | if ((ld_resp = launch_msg(ld_msg)) == NULL) | |
1338 | { | |
bd7854cb | 1339 | cupsdLogMessage(CUPSD_LOG_ERROR, |
a4d04587 | 1340 | "launchd_checkin: launch_msg(\"" LAUNCH_KEY_CHECKIN |
1341 | "\") IPC failure"); | |
1342 | exit(EXIT_FAILURE); | |
1343 | } | |
bd7854cb | 1344 | |
a4d04587 | 1345 | if (launch_data_get_type(ld_resp) == LAUNCH_DATA_ERRNO) |
1346 | { | |
1347 | errno = launch_data_get_errno(ld_resp); | |
1348 | cupsdLogMessage(CUPSD_LOG_ERROR, "launchd_checkin: Check-in failed: %s", | |
1349 | strerror(errno)); | |
1350 | exit(EXIT_FAILURE); | |
1351 | } | |
1352 | ||
a4d04587 | 1353 | /* |
1354 | * Get the sockets dictionary... | |
1355 | */ | |
1356 | ||
1357 | if (!(ld_sockets = launch_data_dict_lookup(ld_resp, LAUNCH_JOBKEY_SOCKETS))) | |
1358 | { | |
1359 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1360 | "launchd_checkin: No sockets found to answer requests on!"); | |
1361 | exit(EXIT_FAILURE); | |
1362 | } | |
bd7854cb | 1363 | |
a4d04587 | 1364 | /* |
1365 | * Get the array of listener sockets... | |
1366 | */ | |
1367 | ||
1368 | if (!(ld_array = launch_data_dict_lookup(ld_sockets, "Listeners"))) | |
1369 | { | |
1370 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1371 | "launchd_checkin: No sockets found to answer requests on!"); | |
1372 | exit(EXIT_FAILURE); | |
1373 | } | |
1374 | ||
1375 | /* | |
1376 | * Add listening fd(s) to the Listener array... | |
1377 | */ | |
1378 | ||
1379 | if (launch_data_get_type(ld_array) == LAUNCH_DATA_ARRAY) | |
1380 | { | |
1381 | /* | |
1382 | * Free the listeners array built from cupsd.conf... | |
1383 | */ | |
bd7854cb | 1384 | |
1385 | cupsdDeleteAllListeners(); | |
a4d04587 | 1386 | |
1387 | /* | |
bd7854cb | 1388 | * Create a new array of listeners from the launchd data... |
a4d04587 | 1389 | */ |
1390 | ||
bd7854cb | 1391 | Listeners = cupsArrayNew(NULL, NULL); |
1392 | count = launch_data_array_get_count(ld_array); | |
1393 | ||
1394 | for (i = 0; i < count; i ++) | |
a4d04587 | 1395 | { |
1396 | /* | |
1397 | * Copy the current address and log it... | |
1398 | */ | |
bd7854cb | 1399 | |
1400 | if ((lis = calloc(1, sizeof(cupsd_listener_t))) == NULL) | |
1401 | { | |
1402 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1403 | "launchd_checkin: Unable to allocate listener - %s.", | |
1404 | strerror(errno)); | |
1405 | exit(EXIT_FAILURE); | |
1406 | } | |
1407 | ||
1408 | cupsArrayAdd(Listeners, lis); | |
1409 | ||
a4d04587 | 1410 | tmp = launch_data_array_get_index(ld_array, i); |
1411 | lis->fd = launch_data_get_fd(tmp); | |
1412 | addrlen = sizeof(lis->address); | |
1413 | ||
1414 | if (getsockname(lis->fd, (struct sockaddr *)&(lis->address), &addrlen)) | |
1415 | { | |
1416 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1417 | "launchd_checkin: Unable to get local address - %s", | |
1418 | strerror(errno)); | |
1419 | } | |
bd7854cb | 1420 | |
a4d04587 | 1421 | # ifdef HAVE_SSL |
1422 | portnum = 0; | |
bd7854cb | 1423 | |
a4d04587 | 1424 | # ifdef AF_INET6 |
1425 | if (addr.addr.sa_family == AF_INET6) | |
1426 | portnum = ntohs(addr.ipv6.sin6_port); | |
1427 | else | |
1428 | # endif /* AF_INET6 */ | |
a4d04587 | 1429 | if (addr.addr.sa_family == AF_INET) |
1430 | portnum = ntohs(addr.ipv4.sin_port); | |
1431 | ||
1432 | if (portnum == 443) | |
1433 | lis->encryption = HTTP_ENCRYPT_ALWAYS; | |
1434 | # endif /* HAVE_SSL */ | |
1435 | } | |
1436 | } | |
1437 | ||
1438 | /* | |
1439 | * Collect the browse socket (if there is one)... | |
1440 | */ | |
1441 | ||
1442 | if ((ld_array = launch_data_dict_lookup(ld_sockets, "BrowseSockets"))) | |
1443 | { | |
1444 | if (launch_data_get_type(ld_array) == LAUNCH_DATA_ARRAY) | |
1445 | { | |
e53920b9 | 1446 | if ((tmp = launch_data_array_get_index(ld_array, 0))) |
a4d04587 | 1447 | { |
e53920b9 | 1448 | if (launch_data_get_type(tmp) == LAUNCH_DATA_FD) |
1449 | { | |
1450 | if (BrowseSocket != -1) | |
1451 | close(BrowseSocket); | |
1452 | ||
1453 | BrowseSocket = launch_data_get_fd(tmp); | |
1454 | } | |
1455 | else | |
1456 | cupsdLogMessage(CUPSD_LOG_WARN, | |
1457 | "launchd_checkin: BrowseSocket not a fd!"); | |
1458 | } | |
1459 | else | |
1460 | cupsdLogMessage(CUPSD_LOG_WARN, | |
1461 | "launchd_checkin: BrowseSockets is an empty array!"); | |
a4d04587 | 1462 | } |
1463 | else | |
1464 | cupsdLogMessage(CUPSD_LOG_WARN, | |
1465 | "launchd_checkin: BrowseSockets is not an array!"); | |
1466 | } | |
1467 | else | |
1468 | cupsdLogMessage(CUPSD_LOG_DEBUG, "launchd_checkin: No BrowseSockets"); | |
1469 | ||
1470 | launch_data_free(ld_msg); | |
1471 | launch_data_free(ld_resp); | |
1472 | } | |
1473 | ||
1474 | ||
1475 | /* | |
1476 | * 'launchd_reload()' - Tell launchd to reload the configuration file to pick | |
1477 | * up the new listening directives. | |
1478 | */ | |
1479 | ||
1480 | static void | |
1481 | launchd_reload(void) | |
1482 | { | |
1483 | int child_status; /* Exit status of child process */ | |
1484 | pid_t child_pid, /* Child PID */ | |
1485 | waitpid_status; /* Child process exit status */ | |
1486 | char *argv[4]; /* Argument strings */ | |
1487 | ||
1488 | ||
1489 | /* | |
1490 | * The current launchd doesn't support a reload option (rdar://3854821). | |
1491 | * Until this is fixed we need to reload the config file by execing launchctl | |
1492 | * twice (to unload then load). NOTE: This will cause us to exit on SIGTERM | |
1493 | * which will cancel all client & job activity. | |
1494 | * | |
1495 | * After this is fixed we'll be able to tell launchd to reload the file | |
1496 | * and pick up the new listening descriptors without disrupting current | |
1497 | * activity. | |
1498 | */ | |
1499 | ||
1500 | /* | |
1501 | * Unloading the current configuration will cause launchd to send us a SIGTERM; | |
1502 | * block it for now so we can get our work done... | |
1503 | */ | |
1504 | ||
1505 | cupsdHoldSignals(); | |
1506 | ||
1507 | /* | |
1508 | * Set up the unload arguments to launchctl... | |
1509 | */ | |
1510 | ||
1511 | argv[0] = "/bin/launchctl"; | |
1512 | argv[1] = "unload"; | |
1513 | argv[2] = LaunchdConf; | |
1514 | argv[3] = NULL; | |
1515 | ||
1516 | if (cupsdStartProcess(argv[0], argv, NULL, -1, -1, -1, -1, 1, &child_pid) < 0) | |
1517 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1518 | "launchd_reload: Unable to execute %s - %s", argv[0], | |
1519 | strerror(errno)); | |
1520 | else | |
1521 | { | |
1522 | do | |
1523 | { | |
1524 | waitpid_status = waitpid(child_pid, &child_status, 0); | |
1525 | } | |
1526 | while (waitpid_status == (pid_t)-1 && errno == EINTR); | |
1527 | ||
1528 | if (WIFSIGNALED(child_status)) | |
1529 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
bd7854cb | 1530 | "launchd_reload: %s pid %d crashed on signal %d!", |
a4d04587 | 1531 | basename(argv[0]), child_pid, WTERMSIG(child_status)); |
1532 | else | |
1533 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
bd7854cb | 1534 | "launchd_reload: %s pid %d stopped with status %d!", |
a4d04587 | 1535 | basename(argv[0]), child_pid, WEXITSTATUS(child_status)); |
1536 | ||
1537 | /* | |
1538 | * Do it again with the load command... | |
1539 | */ | |
bd7854cb | 1540 | |
a4d04587 | 1541 | argv[1] = "load"; |
1542 | ||
1543 | if (cupsdStartProcess(argv[0], argv, NULL, -1, -1, -1, -1, 1, | |
1544 | &child_pid) < 0) | |
1545 | { | |
1546 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1547 | "launchd_reload: Unable to fork for %s - %s", argv[0], | |
1548 | strerror(errno)); | |
1549 | } | |
1550 | else | |
1551 | { | |
1552 | do | |
1553 | { | |
1554 | waitpid_status = waitpid(child_pid, &child_status, 0); | |
1555 | } while (waitpid_status == (pid_t)-1 && errno == EINTR); | |
1556 | ||
1557 | if (WIFSIGNALED(child_status)) | |
1558 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1559 | "launchd_reload: %s pid %d crashed on signal %d!", | |
1560 | basename(argv[0]), child_pid, WTERMSIG(child_status)); | |
1561 | else | |
1562 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1563 | "launchd_reload: %s pid %d stopped with status %d", | |
1564 | basename(argv[0]), child_pid, | |
1565 | WEXITSTATUS(child_status)); | |
1566 | } | |
1567 | } | |
1568 | ||
1569 | /* | |
1570 | * Leave signals blocked since exit() will be called momentarily anyways... | |
1571 | */ | |
1572 | } | |
1573 | ||
1574 | ||
1575 | /* | |
bd7854cb | 1576 | * 'launchd_sync_conf()' - Re-write the launchd(8) config file |
a4d04587 | 1577 | * org.cups.cupsd.plist based on cupsd.conf. |
1578 | */ | |
1579 | ||
1580 | static int /* O - 1 if the file was updated */ | |
1581 | launchd_sync_conf(void) | |
1582 | { | |
bd7854cb | 1583 | int portnum; /* Port number */ |
4400e98d | 1584 | CFMutableDictionaryRef cupsd_dict, /* org.cups.cupsd.plist dictionary */ |
a4d04587 | 1585 | sockets, /* Sockets dictionary */ |
1586 | listener; /* Listener dictionary */ | |
bd7854cb | 1587 | CFDataRef resourceData; /* XML property list */ |
a4d04587 | 1588 | CFMutableArrayRef array; /* Array */ |
1589 | CFNumberRef socket_mode; /* Domain socket mode bits */ | |
1590 | CFStringRef socket_path; /* Domain socket path */ | |
1591 | CFTypeRef value; /* CF value */ | |
1592 | CFURLRef fileURL; /* File URL */ | |
1593 | SInt32 errorCode; /* Error code */ | |
1594 | cupsd_listener_t *lis; /* Current listening socket */ | |
1595 | struct servent *service; /* Services data base entry */ | |
1596 | char temp[1024]; /* Temporary buffer for value */ | |
1597 | struct stat cupsd_sb, /* File info for cupsd.conf */ | |
4400e98d | 1598 | launchd_sb; /* File info for org.cups.cupsd.plist */ |
a4d04587 | 1599 | |
1600 | ||
1601 | /* | |
1602 | * If the launchd conf file modification time is newer than the cupsd.conf | |
1603 | * time then there's nothing to do... | |
1604 | */ | |
1605 | ||
bd7854cb | 1606 | if (!stat(ConfigurationFile, &cupsd_sb) && |
1607 | !stat(LaunchdConf, &launchd_sb) && | |
a4d04587 | 1608 | launchd_sb.st_mtimespec.tv_sec >= cupsd_sb.st_mtimespec.tv_sec) |
1609 | { | |
1610 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
bd7854cb | 1611 | "launchd_sync_conf: Nothing to do, pid=%d.", |
a4d04587 | 1612 | (int)getpid()); |
1613 | return (0); | |
1614 | } | |
1615 | ||
1616 | /* | |
4400e98d | 1617 | * Time to write a new 'org.cups.cupsd.plist' file. |
a4d04587 | 1618 | * Create the new dictionary and populate it with values... |
1619 | */ | |
1620 | ||
1621 | if ((cupsd_dict = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, | |
1622 | &kCFTypeDictionaryKeyCallBacks, | |
1623 | &kCFTypeDictionaryValueCallBacks)) != NULL) | |
1624 | { | |
e00b005a | 1625 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_LABEL), |
1626 | CFSTR("org.cups.cupsd")); | |
e00b005a | 1627 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_ONDEMAND), |
1628 | kCFBooleanTrue); | |
a4d04587 | 1629 | |
1630 | if ((Browsing && BrowseLocalProtocols && cupsArrayCount(Printers)) || | |
d09495fa | 1631 | cupsArrayCount(ActiveJobs) || NumPolled) |
e00b005a | 1632 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_RUNATLOAD), |
1633 | kCFBooleanTrue); | |
a4d04587 | 1634 | else |
e00b005a | 1635 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_RUNATLOAD), |
1636 | kCFBooleanFalse); | |
a4d04587 | 1637 | |
4400e98d | 1638 | #ifdef LAUNCH_JOBKEY_SERVICEIPC |
e00b005a | 1639 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_SERVICEIPC), |
1640 | kCFBooleanTrue); | |
4400e98d | 1641 | #endif /* LAUNCH_JOBKEY_SERVICEIPC */ |
a4d04587 | 1642 | |
1643 | if ((array = CFArrayCreateMutable(kCFAllocatorDefault, 2, | |
1644 | &kCFTypeArrayCallBacks)) != NULL) | |
1645 | { | |
e00b005a | 1646 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_PROGRAMARGUMENTS), |
1647 | array); | |
a4d04587 | 1648 | CFArrayAppendValue(array, CFSTR("/usr/sbin/cupsd")); |
1649 | CFArrayAppendValue(array, CFSTR("-l")); | |
1650 | CFRelease(array); | |
1651 | } | |
1652 | ||
1653 | /* | |
1654 | * Add a sockets dictionary... | |
1655 | */ | |
bd7854cb | 1656 | |
a4d04587 | 1657 | if ((sockets = (CFMutableDictionaryRef)CFDictionaryCreateMutable( |
1658 | kCFAllocatorDefault, 0, | |
1659 | &kCFTypeDictionaryKeyCallBacks, | |
1660 | &kCFTypeDictionaryValueCallBacks)) != NULL) | |
1661 | { | |
e00b005a | 1662 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_SOCKETS), sockets); |
a4d04587 | 1663 | |
1664 | /* | |
1665 | * Add a Listeners array to the sockets dictionary... | |
1666 | */ | |
bd7854cb | 1667 | |
a4d04587 | 1668 | if ((array = CFArrayCreateMutable(kCFAllocatorDefault, 0, |
1669 | &kCFTypeArrayCallBacks)) != NULL) | |
1670 | { | |
1671 | CFDictionaryAddValue(sockets, CFSTR("Listeners"), array); | |
1672 | ||
1673 | /* | |
1674 | * For each listener add a dictionary to the listeners array... | |
1675 | */ | |
bd7854cb | 1676 | |
1677 | for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); | |
1678 | lis; | |
1679 | lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
a4d04587 | 1680 | { |
1681 | if ((listener = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, | |
1682 | &kCFTypeDictionaryKeyCallBacks, | |
1683 | &kCFTypeDictionaryValueCallBacks)) != NULL) | |
1684 | { | |
1685 | CFArrayAppendValue(array, listener); | |
1686 | ||
1687 | # ifdef AF_LOCAL | |
1688 | if (lis->address.addr.sa_family == AF_LOCAL) | |
1689 | { | |
bd7854cb | 1690 | if ((socket_path = CFStringCreateWithCString(kCFAllocatorDefault, |
1691 | lis->address.un.sun_path, | |
a4d04587 | 1692 | kCFStringEncodingUTF8))) |
1693 | { | |
e00b005a | 1694 | CFDictionaryAddValue(listener, |
1695 | CFSTR(LAUNCH_JOBSOCKETKEY_PATHNAME), | |
a4d04587 | 1696 | socket_path); |
1697 | CFRelease(socket_path); | |
1698 | } | |
1699 | portnum = 0140777; /* (S_IFSOCK|S_IRWXU|S_IRWXG|S_IRWXO) or * | |
1700 | * 49663d decimal */ | |
1701 | if ((socket_mode = CFNumberCreate(kCFAllocatorDefault, | |
1702 | kCFNumberIntType, &portnum))) | |
1703 | { | |
1704 | CFDictionaryAddValue(listener, CFSTR("SockPathMode"), | |
1705 | socket_mode); | |
1706 | CFRelease(socket_mode); | |
1707 | } | |
1708 | } | |
1709 | else | |
1710 | # endif /* AF_LOCAL */ | |
1711 | { | |
1712 | # ifdef AF_INET6 | |
1713 | if (lis->address.addr.sa_family == AF_INET6) | |
1714 | { | |
e00b005a | 1715 | CFDictionaryAddValue(listener, |
1716 | CFSTR(LAUNCH_JOBSOCKETKEY_FAMILY), | |
a4d04587 | 1717 | CFSTR("IPv6")); |
1718 | portnum = lis->address.ipv6.sin6_port; | |
1719 | } | |
1720 | else | |
1721 | # endif /* AF_INET6 */ | |
1722 | { | |
e00b005a | 1723 | CFDictionaryAddValue(listener, |
1724 | CFSTR(LAUNCH_JOBSOCKETKEY_FAMILY), | |
a4d04587 | 1725 | CFSTR("IPv4")); |
1726 | portnum = lis->address.ipv4.sin_port; | |
1727 | } | |
1728 | ||
1729 | if ((service = getservbyport(portnum, NULL))) | |
bd7854cb | 1730 | value = CFStringCreateWithCString(kCFAllocatorDefault, |
1731 | service->s_name, | |
a4d04587 | 1732 | kCFStringEncodingUTF8); |
1733 | else | |
bd7854cb | 1734 | value = CFNumberCreate(kCFAllocatorDefault, |
a4d04587 | 1735 | kCFNumberIntType, &portnum); |
1736 | ||
1737 | if (value) | |
1738 | { | |
e00b005a | 1739 | CFDictionaryAddValue(listener, |
1740 | CFSTR(LAUNCH_JOBSOCKETKEY_SERVICENAME), | |
1741 | value); | |
a4d04587 | 1742 | CFRelease(value); |
1743 | } | |
1744 | ||
1745 | httpAddrString(&lis->address, temp, sizeof(temp)); | |
bd7854cb | 1746 | if ((value = CFStringCreateWithCString(kCFAllocatorDefault, temp, |
a4d04587 | 1747 | kCFStringEncodingUTF8))) |
1748 | { | |
e00b005a | 1749 | CFDictionaryAddValue(listener, |
1750 | CFSTR(LAUNCH_JOBSOCKETKEY_NODENAME), | |
1751 | value); | |
a4d04587 | 1752 | CFRelease(value); |
1753 | } | |
1754 | } | |
1755 | ||
1756 | CFRelease(listener); | |
1757 | } | |
1758 | } | |
1759 | ||
1760 | CFRelease(array); | |
1761 | } | |
1762 | ||
1763 | /* | |
1764 | * Add the BrowseSocket to the sockets dictionary... | |
1765 | */ | |
bd7854cb | 1766 | |
a4d04587 | 1767 | if (Browsing && (BrowseRemoteProtocols & BROWSE_CUPS)) |
1768 | { | |
bd7854cb | 1769 | if ((array = CFArrayCreateMutable(kCFAllocatorDefault, 0, |
a4d04587 | 1770 | &kCFTypeArrayCallBacks)) != NULL) |
1771 | { | |
1772 | CFDictionaryAddValue(sockets, CFSTR("BrowseSockets"), array); | |
1773 | ||
1774 | if ((listener = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, | |
1775 | &kCFTypeDictionaryKeyCallBacks, | |
1776 | &kCFTypeDictionaryValueCallBacks)) != NULL) | |
1777 | { | |
1778 | CFArrayAppendValue(array, listener); | |
1779 | ||
e00b005a | 1780 | CFDictionaryAddValue(listener, CFSTR(LAUNCH_JOBSOCKETKEY_FAMILY), |
1781 | CFSTR("IPv4")); | |
1782 | CFDictionaryAddValue(listener, CFSTR(LAUNCH_JOBSOCKETKEY_TYPE), | |
1783 | CFSTR("dgram")); | |
a4d04587 | 1784 | |
1785 | if ((service = getservbyport(BrowsePort, NULL))) | |
bd7854cb | 1786 | value = CFStringCreateWithCString(kCFAllocatorDefault, |
1787 | service->s_name, | |
a4d04587 | 1788 | kCFStringEncodingUTF8); |
1789 | else | |
bd7854cb | 1790 | value = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, |
a4d04587 | 1791 | &BrowsePort); |
1792 | ||
e00b005a | 1793 | CFDictionaryAddValue(listener, |
1794 | CFSTR(LAUNCH_JOBSOCKETKEY_SERVICENAME), value); | |
a4d04587 | 1795 | CFRelease(value); |
1796 | ||
1797 | CFRelease(listener); | |
1798 | } | |
1799 | ||
1800 | CFRelease(array); | |
1801 | } | |
1802 | } | |
1803 | ||
1804 | CFRelease(sockets); | |
1805 | } | |
1806 | ||
1807 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
bd7854cb | 1808 | "launchd_sync_conf: Updating \"%s\", pid=%d\n", |
a4d04587 | 1809 | LaunchdConf, (int)getpid()); |
bd7854cb | 1810 | |
1811 | if ((fileURL = CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault, | |
1812 | (const unsigned char *)LaunchdConf, | |
a4d04587 | 1813 | strlen(LaunchdConf), false))) |
1814 | { | |
1815 | if ((resourceData = CFPropertyListCreateXMLData(kCFAllocatorDefault, | |
1816 | cupsd_dict))) | |
1817 | { | |
1818 | if (!CFURLWriteDataAndPropertiesToResource(fileURL, resourceData, | |
1819 | NULL, &errorCode)) | |
1820 | { | |
1821 | cupsdLogMessage(CUPSD_LOG_WARN, | |
1822 | "launchd_sync_conf: " | |
1823 | "CFURLWriteDataAndPropertiesToResource(\"%s\") " | |
bd7854cb | 1824 | "failed: %d\n", |
a4d04587 | 1825 | LaunchdConf, (int)errorCode); |
1826 | } | |
1827 | ||
1828 | CFRelease(resourceData); | |
1829 | } | |
1830 | ||
1831 | CFRelease(fileURL); | |
1832 | } | |
1833 | ||
1834 | CFRelease(cupsd_dict); | |
1835 | } | |
1836 | ||
1837 | /* | |
1838 | * Let the caller know we updated the file... | |
1839 | */ | |
1840 | ||
1841 | return (1); | |
1842 | } | |
1843 | #endif /* HAVE_LAUNCHD */ | |
1844 | ||
1845 | ||
ef416fc2 | 1846 | /* |
1847 | * 'parent_handler()' - Catch USR1/CHLD signals... | |
1848 | */ | |
1849 | ||
1850 | static void | |
1851 | parent_handler(int sig) /* I - Signal */ | |
1852 | { | |
1853 | /* | |
1854 | * Store the signal we got from the OS and return... | |
1855 | */ | |
1856 | ||
1857 | parent_signal = sig; | |
1858 | } | |
1859 | ||
1860 | ||
1861 | /* | |
1862 | * 'process_children()' - Process all dead children... | |
1863 | */ | |
1864 | ||
1865 | static void | |
1866 | process_children(void) | |
1867 | { | |
1868 | int status; /* Exit status of child */ | |
1869 | int pid; /* Process ID of child */ | |
1870 | cupsd_job_t *job; /* Current job */ | |
1871 | int i; /* Looping var */ | |
e00b005a | 1872 | char name[1024]; /* Process name */ |
ef416fc2 | 1873 | |
1874 | ||
1875 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "process_children()"); | |
1876 | ||
1877 | /* | |
1878 | * Reset the dead_children flag... | |
1879 | */ | |
1880 | ||
1881 | dead_children = 0; | |
1882 | ||
1883 | /* | |
1884 | * Collect the exit status of some children... | |
1885 | */ | |
1886 | ||
1887 | #ifdef HAVE_WAITPID | |
1888 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) | |
1889 | #elif defined(HAVE_WAIT3) | |
1890 | while ((pid = wait3(&status, WNOHANG, NULL)) > 0) | |
1891 | #else | |
1892 | if ((pid = wait(&status)) > 0) | |
1893 | #endif /* HAVE_WAITPID */ | |
1894 | { | |
ef416fc2 | 1895 | /* |
d09495fa | 1896 | * Ignore SIGTERM errors - that comes when a job is canceled... |
ef416fc2 | 1897 | */ |
1898 | ||
e00b005a | 1899 | cupsdFinishProcess(pid, name, sizeof(name)); |
1900 | ||
ef416fc2 | 1901 | if (status == SIGTERM) |
1902 | status = 0; | |
1903 | ||
1904 | if (status) | |
1905 | { | |
1906 | if (WIFEXITED(status)) | |
e00b005a | 1907 | cupsdLogMessage(CUPSD_LOG_ERROR, "PID %d (%s) stopped with status %d!", |
1908 | pid, name, WEXITSTATUS(status)); | |
ef416fc2 | 1909 | else |
e00b005a | 1910 | cupsdLogMessage(CUPSD_LOG_ERROR, "PID %d (%s) crashed on signal %d!", |
1911 | pid, name, WTERMSIG(status)); | |
ef416fc2 | 1912 | |
1913 | if (LogLevel < CUPSD_LOG_DEBUG) | |
1914 | cupsdLogMessage(CUPSD_LOG_INFO, | |
bd7854cb | 1915 | "Hint: Try setting the LogLevel to \"debug\" to find " |
1916 | "out more."); | |
ef416fc2 | 1917 | } |
1918 | else | |
e00b005a | 1919 | cupsdLogMessage(CUPSD_LOG_DEBUG, "PID %d (%s) exited with no errors.", |
1920 | pid, name); | |
ef416fc2 | 1921 | |
1922 | /* | |
1923 | * Delete certificates for CGI processes... | |
1924 | */ | |
1925 | ||
1926 | if (pid) | |
1927 | cupsdDeleteCert(pid); | |
1928 | ||
1929 | /* | |
1930 | * Lookup the PID in the jobs list... | |
1931 | */ | |
1932 | ||
1933 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); | |
1934 | job; | |
1935 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
bd7854cb | 1936 | if (job->state_value == IPP_JOB_PROCESSING) |
ef416fc2 | 1937 | { |
1938 | for (i = 0; job->filters[i]; i ++) | |
1939 | if (job->filters[i] == pid) | |
1940 | break; | |
1941 | ||
1942 | if (job->filters[i] || job->backend == pid) | |
1943 | { | |
1944 | /* | |
1945 | * OK, this process has gone away; what's left? | |
1946 | */ | |
1947 | ||
1948 | if (job->filters[i]) | |
1949 | job->filters[i] = -pid; | |
1950 | else | |
1951 | job->backend = -pid; | |
1952 | ||
1953 | if (status && job->status >= 0) | |
1954 | { | |
1955 | /* | |
1956 | * An error occurred; save the exit status so we know to stop | |
1957 | * the printer or cancel the job when all of the filters finish... | |
1958 | * | |
1959 | * A negative status indicates that the backend failed and the | |
1960 | * printer needs to be stopped. | |
1961 | */ | |
1962 | ||
1963 | if (job->filters[i]) | |
1964 | job->status = status; /* Filter failed */ | |
1965 | else | |
1966 | job->status = -status; /* Backend failed */ | |
e00b005a | 1967 | |
1968 | if (job->printer && !(job->printer->type & CUPS_PRINTER_FAX)) | |
1969 | { | |
1970 | snprintf(job->printer->state_message, | |
1971 | sizeof(job->printer->state_message), "%s failed", name); | |
1972 | cupsdAddPrinterHistory(job->printer); | |
1973 | } | |
ef416fc2 | 1974 | } |
1975 | ||
1976 | /* | |
1977 | * If this is not the last file in a job, see if all of the | |
1978 | * filters are done, and if so move to the next file. | |
1979 | */ | |
1980 | ||
1981 | if (job->current_file < job->num_files) | |
1982 | { | |
1983 | for (i = 0; job->filters[i] < 0; i ++); | |
1984 | ||
1985 | if (!job->filters[i]) | |
1986 | { | |
1987 | /* | |
1988 | * Process the next file... | |
1989 | */ | |
1990 | ||
1991 | cupsdFinishJob(job); | |
1992 | } | |
1993 | } | |
1994 | break; | |
1995 | } | |
1996 | } | |
1997 | } | |
1998 | } | |
1999 | ||
2000 | ||
2001 | /* | |
2002 | * 'sigchld_handler()' - Handle 'child' signals from old processes. | |
2003 | */ | |
2004 | ||
2005 | static void | |
2006 | sigchld_handler(int sig) /* I - Signal number */ | |
2007 | { | |
2008 | (void)sig; | |
2009 | ||
2010 | /* | |
2011 | * Flag that we have dead children... | |
2012 | */ | |
2013 | ||
2014 | dead_children = 1; | |
2015 | ||
2016 | /* | |
2017 | * Reset the signal handler as needed... | |
2018 | */ | |
2019 | ||
2020 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
2021 | signal(SIGCLD, sigchld_handler); | |
2022 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
2023 | } | |
2024 | ||
2025 | ||
2026 | /* | |
2027 | * 'sighup_handler()' - Handle 'hangup' signals to reconfigure the scheduler. | |
2028 | */ | |
2029 | ||
2030 | static void | |
2031 | sighup_handler(int sig) /* I - Signal number */ | |
2032 | { | |
2033 | (void)sig; | |
2034 | ||
2035 | NeedReload = RELOAD_ALL; | |
2036 | ReloadTime = time(NULL); | |
2037 | ||
2038 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
2039 | signal(SIGHUP, sighup_handler); | |
2040 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
2041 | } | |
2042 | ||
2043 | ||
2044 | /* | |
2045 | * 'sigterm_handler()' - Handle 'terminate' signals that stop the scheduler. | |
2046 | */ | |
2047 | ||
2048 | static void | |
2049 | sigterm_handler(int sig) /* I - Signal */ | |
2050 | { | |
2051 | (void)sig; /* remove compiler warnings... */ | |
2052 | ||
2053 | /* | |
2054 | * Flag that we should stop and return... | |
2055 | */ | |
2056 | ||
2057 | stop_scheduler = 1; | |
2058 | } | |
2059 | ||
2060 | ||
2061 | /* | |
2062 | * 'select_timeout()' - Calculate the select timeout value. | |
2063 | * | |
2064 | */ | |
2065 | ||
2066 | static long /* O - Number of seconds */ | |
bd7854cb | 2067 | select_timeout(int fds) /* I - Number of descriptors returned */ |
ef416fc2 | 2068 | { |
ef416fc2 | 2069 | long timeout; /* Timeout for select */ |
2070 | time_t now; /* Current time */ | |
2071 | cupsd_client_t *con; /* Client information */ | |
2072 | cupsd_printer_t *p; /* Printer information */ | |
2073 | cupsd_job_t *job; /* Job information */ | |
2074 | cupsd_subscription_t *sub; /* Subscription information */ | |
2075 | const char *why; /* Debugging aid */ | |
2076 | ||
2077 | ||
2078 | /* | |
2079 | * Check to see if any of the clients have pending data to be | |
2080 | * processed; if so, the timeout should be 0... | |
2081 | */ | |
2082 | ||
bd7854cb | 2083 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
2084 | con; | |
2085 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 2086 | if (con->http.used > 0) |
2087 | return (0); | |
2088 | ||
2089 | /* | |
2090 | * If select has been active in the last second (fds != 0) or we have | |
2091 | * many resources in use then don't bother trying to optimize the | |
2092 | * timeout, just make it 1 second. | |
2093 | */ | |
2094 | ||
bd7854cb | 2095 | if (fds || cupsArrayCount(Clients) > 50) |
ef416fc2 | 2096 | return (1); |
2097 | ||
2098 | /* | |
2099 | * Otherwise, check all of the possible events that we need to wake for... | |
2100 | */ | |
2101 | ||
2102 | now = time(NULL); | |
2103 | timeout = now + 86400; /* 86400 == 1 day */ | |
2104 | why = "do nothing"; | |
2105 | ||
2106 | /* | |
2107 | * Check the activity and close old clients... | |
2108 | */ | |
2109 | ||
bd7854cb | 2110 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
2111 | con; | |
2112 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 2113 | if ((con->http.activity + Timeout) < timeout) |
2114 | { | |
2115 | timeout = con->http.activity + Timeout; | |
2116 | why = "timeout a client connection"; | |
2117 | } | |
2118 | ||
2119 | /* | |
2120 | * Update the browse list as needed... | |
2121 | */ | |
2122 | ||
2123 | if (Browsing && BrowseLocalProtocols) | |
2124 | { | |
2125 | #ifdef HAVE_LIBSLP | |
2126 | if ((BrowseLocalProtocols & BROWSE_SLP) && (BrowseSLPRefresh < timeout)) | |
2127 | { | |
2128 | timeout = BrowseSLPRefresh; | |
2129 | why = "update SLP browsing"; | |
2130 | } | |
2131 | #endif /* HAVE_LIBSLP */ | |
2132 | ||
b423cd4c | 2133 | #ifdef HAVE_LDAP |
2134 | if ((BrowseLocalProtocols & BROWSE_LDAP) && (BrowseLDAPRefresh < timeout)) | |
2135 | { | |
2136 | timeout = BrowseLDAPRefresh; | |
2137 | why = "update LDAP browsing"; | |
2138 | } | |
2139 | #endif /* HAVE_LDAP */ | |
2140 | ||
ef416fc2 | 2141 | if (BrowseLocalProtocols & BROWSE_CUPS) |
2142 | { | |
2143 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); | |
2144 | p; | |
2145 | p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
2146 | { | |
2147 | if (p->type & CUPS_PRINTER_REMOTE) | |
2148 | { | |
2149 | if ((p->browse_time + BrowseTimeout) < timeout) | |
2150 | { | |
2151 | timeout = p->browse_time + BrowseTimeout; | |
2152 | why = "browse timeout a printer"; | |
2153 | } | |
2154 | } | |
2155 | else if (!(p->type & CUPS_PRINTER_IMPLICIT)) | |
2156 | { | |
2157 | if (BrowseInterval && (p->browse_time + BrowseInterval) < timeout) | |
2158 | { | |
2159 | timeout = p->browse_time + BrowseInterval; | |
2160 | why = "send browse update"; | |
2161 | } | |
2162 | } | |
2163 | } | |
2164 | } | |
2165 | } | |
2166 | ||
2167 | /* | |
2168 | * Check for any active jobs... | |
2169 | */ | |
2170 | ||
2171 | if (timeout > (now + 10) && ActiveJobs) | |
2172 | { | |
2173 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); | |
2174 | job; | |
2175 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
bd7854cb | 2176 | if (job->state_value <= IPP_JOB_PROCESSING) |
ef416fc2 | 2177 | { |
2178 | timeout = now + 10; | |
2179 | why = "process active jobs"; | |
2180 | break; | |
2181 | } | |
2182 | } | |
2183 | ||
2184 | #ifdef HAVE_MALLINFO | |
2185 | /* | |
2186 | * Log memory usage every minute... | |
2187 | */ | |
2188 | ||
2189 | if (LogLevel >= CUPSD_LOG_DEBUG && (mallinfo_time + 60) < timeout) | |
2190 | { | |
2191 | timeout = mallinfo_time + 60; | |
2192 | why = "display memory usage"; | |
2193 | } | |
2194 | #endif /* HAVE_MALLINFO */ | |
2195 | ||
ef416fc2 | 2196 | /* |
2197 | * Expire subscriptions as needed... | |
2198 | */ | |
2199 | ||
2200 | for (sub = (cupsd_subscription_t *)cupsArrayFirst(Subscriptions); | |
2201 | sub; | |
2202 | sub = (cupsd_subscription_t *)cupsArrayNext(Subscriptions)) | |
bd7854cb | 2203 | if (!sub->job && sub->expire && sub->expire < timeout) |
ef416fc2 | 2204 | { |
2205 | timeout = sub->expire; | |
2206 | why = "expire subscription"; | |
2207 | } | |
2208 | ||
2209 | /* | |
2210 | * Adjust from absolute to relative time. If p->browse_time above | |
2211 | * was 0 then we can end up with a negative value here, so check. | |
2212 | * We add 1 second to the timeout since events occur after the | |
2213 | * timeout expires, and limit the timeout to 86400 seconds (1 day) | |
2214 | * to avoid select() timeout limits present on some operating | |
2215 | * systems... | |
2216 | */ | |
2217 | ||
2218 | timeout = timeout - now + 1; | |
2219 | ||
2220 | if (timeout < 1) | |
2221 | timeout = 1; | |
2222 | else if (timeout > 86400) | |
2223 | timeout = 86400; | |
2224 | ||
2225 | /* | |
2226 | * Log and return the timeout value... | |
2227 | */ | |
2228 | ||
2229 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout: %ld seconds to %s", | |
2230 | timeout, why); | |
2231 | ||
2232 | return (timeout); | |
2233 | } | |
2234 | ||
2235 | ||
2236 | /* | |
2237 | * 'usage()' - Show scheduler usage. | |
2238 | */ | |
2239 | ||
2240 | static void | |
a4d04587 | 2241 | usage(int status) /* O - Exit status */ |
ef416fc2 | 2242 | { |
a4d04587 | 2243 | _cupsLangPuts(status ? stderr : stdout, |
2244 | _("Usage: cupsd [-c config-file] [-f] [-F] [-h] [-l]\n" | |
2245 | "\n" | |
2246 | "-c config-file Load alternate configuration file\n" | |
2247 | "-f Run in the foreground\n" | |
2248 | "-F Run in the foreground but detach\n" | |
2249 | "-h Show this usage message\n" | |
2250 | "-l Run cupsd from launchd(8)\n")); | |
2251 | exit(status); | |
ef416fc2 | 2252 | } |
2253 | ||
2254 | ||
2255 | /* | |
d09495fa | 2256 | * End of "$Id: main.c 5878 2006-08-24 15:55:42Z mike $". |
ef416fc2 | 2257 | */ |