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ef416fc2 | 1 | /* |
e1d6a774 | 2 | * "$Id: main.c 5305 2006-03-18 03:05:12Z 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 | ||
ef416fc2 | 222 | default : /* Unknown option */ |
a4d04587 | 223 | _cupsLangPrintf(stderr, _("cupsd: Unknown option \"%c\" - " |
224 | "aborting!\n"), *opt); | |
225 | usage(1); | |
ef416fc2 | 226 | break; |
227 | } | |
228 | else | |
229 | { | |
a4d04587 | 230 | _cupsLangPrintf(stderr, _("cupsd: Unknown argument \"%s\" - aborting!\n"), |
231 | argv[i]); | |
232 | usage(1); | |
ef416fc2 | 233 | } |
234 | ||
235 | if (!ConfigurationFile) | |
236 | cupsdSetString(&ConfigurationFile, CUPS_SERVERROOT "/cupsd.conf"); | |
237 | ||
238 | /* | |
239 | * If the user hasn't specified "-f", run in the background... | |
240 | */ | |
241 | ||
242 | if (!fg) | |
243 | { | |
244 | /* | |
245 | * Setup signal handlers for the parent... | |
246 | */ | |
247 | ||
248 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
249 | sigset(SIGUSR1, parent_handler); | |
250 | sigset(SIGCHLD, parent_handler); | |
251 | ||
252 | sigset(SIGHUP, SIG_IGN); | |
253 | #elif defined(HAVE_SIGACTION) | |
254 | memset(&action, 0, sizeof(action)); | |
255 | sigemptyset(&action.sa_mask); | |
256 | sigaddset(&action.sa_mask, SIGUSR1); | |
257 | action.sa_handler = parent_handler; | |
258 | sigaction(SIGUSR1, &action, NULL); | |
259 | sigaction(SIGCHLD, &action, NULL); | |
260 | ||
261 | sigemptyset(&action.sa_mask); | |
262 | action.sa_handler = SIG_IGN; | |
263 | sigaction(SIGHUP, &action, NULL); | |
264 | #else | |
265 | signal(SIGUSR1, parent_handler); | |
266 | signal(SIGCLD, parent_handler); | |
267 | ||
268 | signal(SIGHUP, SIG_IGN); | |
269 | #endif /* HAVE_SIGSET */ | |
270 | ||
271 | if (fork() > 0) | |
272 | { | |
273 | /* | |
274 | * OK, wait for the child to startup and send us SIGUSR1 or to crash | |
275 | * and the OS send us SIGCHLD... We also need to ignore SIGHUP which | |
276 | * might be sent by the init script to restart the scheduler... | |
277 | */ | |
278 | ||
279 | for (; parent_signal == 0;) | |
280 | sleep(1); | |
281 | ||
282 | if (parent_signal == SIGUSR1) | |
283 | return (0); | |
284 | ||
285 | if (wait(&i) < 0) | |
286 | { | |
287 | perror("cupsd"); | |
288 | return (1); | |
289 | } | |
290 | else if (WIFEXITED(i)) | |
291 | { | |
bd7854cb | 292 | fprintf(stderr, "cupsd: Child exited with status %d!\n", |
293 | WEXITSTATUS(i)); | |
ef416fc2 | 294 | return (2); |
295 | } | |
296 | else | |
297 | { | |
298 | fprintf(stderr, "cupsd: Child exited on signal %d!\n", WTERMSIG(i)); | |
299 | return (3); | |
300 | } | |
301 | } | |
302 | } | |
303 | ||
304 | if (fg < 1) | |
305 | { | |
306 | /* | |
307 | * Make sure we aren't tying up any filesystems... | |
308 | */ | |
309 | ||
310 | chdir("/"); | |
311 | ||
312 | #ifndef DEBUG | |
313 | /* | |
314 | * Disable core dumps... | |
315 | */ | |
316 | ||
317 | getrlimit(RLIMIT_CORE, &limit); | |
318 | limit.rlim_cur = 0; | |
319 | setrlimit(RLIMIT_CORE, &limit); | |
320 | ||
321 | /* | |
322 | * Disconnect from the controlling terminal... | |
323 | */ | |
324 | ||
325 | setsid(); | |
326 | ||
327 | /* | |
328 | * Close all open files... | |
329 | */ | |
330 | ||
331 | getrlimit(RLIMIT_NOFILE, &limit); | |
332 | ||
333 | for (i = 0; i < limit.rlim_cur; i ++) | |
334 | close(i); | |
335 | #endif /* DEBUG */ | |
336 | } | |
337 | ||
338 | /* | |
339 | * Set the timezone info... | |
340 | */ | |
341 | ||
342 | tzset(); | |
343 | ||
344 | #ifdef LC_TIME | |
345 | setlocale(LC_TIME, ""); | |
346 | #endif /* LC_TIME */ | |
347 | ||
348 | /* | |
349 | * Set the maximum number of files... | |
350 | */ | |
351 | ||
352 | getrlimit(RLIMIT_NOFILE, &limit); | |
353 | ||
354 | if (limit.rlim_max > CUPS_MAX_FDS) | |
355 | MaxFDs = CUPS_MAX_FDS; | |
356 | else | |
357 | MaxFDs = limit.rlim_max; | |
358 | ||
359 | limit.rlim_cur = MaxFDs; | |
360 | ||
361 | setrlimit(RLIMIT_NOFILE, &limit); | |
362 | ||
363 | /* | |
364 | * Allocate memory for the input and output sets... | |
365 | */ | |
366 | ||
367 | SetSize = (MaxFDs + 31) / 8 + 4; | |
368 | if (SetSize < sizeof(fd_set)) | |
369 | SetSize = sizeof(fd_set); | |
370 | ||
371 | InputSet = (fd_set *)calloc(1, SetSize); | |
372 | OutputSet = (fd_set *)calloc(1, SetSize); | |
373 | input = (fd_set *)calloc(1, SetSize); | |
374 | output = (fd_set *)calloc(1, SetSize); | |
375 | ||
376 | if (InputSet == NULL || OutputSet == NULL || input == NULL || output == NULL) | |
377 | { | |
378 | syslog(LOG_LPR, "Unable to allocate memory for select() sets - exiting!"); | |
379 | return (1); | |
380 | } | |
381 | ||
382 | /* | |
383 | * Read configuration... | |
384 | */ | |
385 | ||
386 | if (!cupsdReadConfiguration()) | |
387 | { | |
388 | syslog(LOG_LPR, "Unable to read configuration file \'%s\' - exiting!", | |
389 | ConfigurationFile); | |
390 | return (1); | |
391 | } | |
392 | ||
a4d04587 | 393 | #if HAVE_LAUNCHD |
4400e98d | 394 | if (Launchd) |
a4d04587 | 395 | { |
396 | /* | |
397 | * If we were started by launchd make sure the cupsd plist file contains the | |
398 | * same listeners as cupsd.conf; If it didn't then reload it before getting | |
399 | * the list of listening file descriptors... | |
400 | */ | |
401 | ||
402 | if (launchd_sync_conf()) | |
403 | { | |
404 | launchd_reload(); | |
405 | ||
406 | /* | |
407 | * Until rdar://3854821 is fixed we have to exit after the reload... | |
408 | */ | |
409 | ||
410 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "Exiting on launchd_reload"); | |
411 | exit(0); | |
412 | } | |
413 | ||
414 | launchd_checkin(); | |
415 | } | |
416 | #endif /* HAVE_LAUNCHD */ | |
417 | ||
418 | /* | |
419 | * Startup the server... | |
420 | */ | |
421 | ||
422 | cupsdStartServer(); | |
423 | ||
ef416fc2 | 424 | /* |
425 | * Catch hangup and child signals and ignore broken pipes... | |
426 | */ | |
427 | ||
428 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
e1d6a774 | 429 | sigset(SIGCHLD, sigchld_handler); |
4744bd90 | 430 | sigset(SIGHUP, sighup_handler); |
ef416fc2 | 431 | sigset(SIGPIPE, SIG_IGN); |
432 | sigset(SIGTERM, sigterm_handler); | |
433 | #elif defined(HAVE_SIGACTION) | |
434 | memset(&action, 0, sizeof(action)); | |
435 | ||
e1d6a774 | 436 | sigemptyset(&action.sa_mask); |
437 | sigaddset(&action.sa_mask, SIGTERM); | |
438 | sigaddset(&action.sa_mask, SIGCHLD); | |
439 | action.sa_handler = sigchld_handler; | |
440 | sigaction(SIGCHLD, &action, NULL); | |
441 | ||
ef416fc2 | 442 | sigemptyset(&action.sa_mask); |
443 | sigaddset(&action.sa_mask, SIGHUP); | |
4744bd90 | 444 | action.sa_handler = sighup_handler; |
ef416fc2 | 445 | sigaction(SIGHUP, &action, NULL); |
446 | ||
447 | sigemptyset(&action.sa_mask); | |
448 | action.sa_handler = SIG_IGN; | |
449 | sigaction(SIGPIPE, &action, NULL); | |
450 | ||
451 | sigemptyset(&action.sa_mask); | |
452 | sigaddset(&action.sa_mask, SIGTERM); | |
453 | sigaddset(&action.sa_mask, SIGCHLD); | |
454 | action.sa_handler = sigterm_handler; | |
455 | sigaction(SIGTERM, &action, NULL); | |
456 | #else | |
e1d6a774 | 457 | signal(SIGCLD, sigchld_handler); /* No, SIGCLD isn't a typo... */ |
4744bd90 | 458 | signal(SIGHUP, sighup_handler); |
ef416fc2 | 459 | signal(SIGPIPE, SIG_IGN); |
460 | signal(SIGTERM, sigterm_handler); | |
461 | #endif /* HAVE_SIGSET */ | |
462 | ||
463 | #ifdef __sgi | |
464 | /* | |
465 | * Try to create a fake lpsched lock file if one is not already there. | |
466 | * Some Adobe applications need it under IRIX in order to enable | |
467 | * printing... | |
468 | */ | |
469 | ||
470 | if ((fp = cupsFileOpen("/var/spool/lp/SCHEDLOCK", "w")) == NULL) | |
471 | { | |
472 | syslog(LOG_LPR, "Unable to create fake lpsched lock file " | |
473 | "\"/var/spool/lp/SCHEDLOCK\"\' - %s!", | |
474 | strerror(errno)); | |
475 | } | |
476 | else | |
477 | { | |
478 | fchmod(cupsFileNumber(fp), 0644); | |
479 | fchown(cupsFileNumber(fp), User, Group); | |
480 | ||
481 | cupsFileClose(fp); | |
482 | } | |
483 | #endif /* __sgi */ | |
484 | ||
485 | /* | |
486 | * Initialize authentication certificates... | |
487 | */ | |
488 | ||
489 | cupsdInitCerts(); | |
490 | ||
491 | /* | |
492 | * If we are running in the background, signal the parent process that | |
493 | * we are up and running... | |
494 | */ | |
495 | ||
496 | if (!fg) | |
497 | { | |
498 | /* | |
499 | * Send a signal to the parent process, but only if the parent is | |
500 | * not PID 1 (init). This avoids accidentally shutting down the | |
501 | * system on OpenBSD if you CTRL-C the server before it is up... | |
502 | */ | |
503 | ||
504 | i = getppid(); /* Save parent PID to avoid race condition */ | |
505 | ||
506 | if (i != 1) | |
507 | kill(i, SIGUSR1); | |
508 | } | |
509 | ||
e1d6a774 | 510 | #ifdef __APPLE__ |
09ec0018 | 511 | /* |
512 | * Start power management framework... | |
513 | */ | |
514 | ||
515 | cupsdStartSystemMonitor(); | |
e1d6a774 | 516 | #endif /* __APPLE__ */ |
ef416fc2 | 517 | |
518 | /* | |
519 | * Start any pending print jobs... | |
520 | */ | |
521 | ||
522 | cupsdCheckJobs(); | |
523 | ||
524 | /* | |
525 | * Loop forever... | |
526 | */ | |
527 | ||
ef416fc2 | 528 | mallinfo_time = 0; |
ef416fc2 | 529 | browse_time = time(NULL); |
530 | senddoc_time = time(NULL); | |
531 | expire_time = time(NULL); | |
532 | fds = 1; | |
533 | ||
534 | while (!stop_scheduler) | |
535 | { | |
536 | #ifdef DEBUG | |
537 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
538 | "main: Top of loop, dead_children=%d, NeedReload=%d", | |
539 | dead_children, NeedReload); | |
540 | #endif /* DEBUG */ | |
541 | ||
542 | /* | |
543 | * Check if there are dead children to handle... | |
544 | */ | |
545 | ||
546 | if (dead_children) | |
547 | process_children(); | |
548 | ||
549 | /* | |
550 | * Check if we need to load the server configuration file... | |
551 | */ | |
552 | ||
553 | if (NeedReload) | |
554 | { | |
555 | /* | |
556 | * Close any idle clients... | |
557 | */ | |
558 | ||
bd7854cb | 559 | if (cupsArrayCount(Clients) > 0) |
ef416fc2 | 560 | { |
bd7854cb | 561 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
562 | con; | |
563 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 564 | if (con->http.state == HTTP_WAITING) |
ef416fc2 | 565 | cupsdCloseClient(con); |
ef416fc2 | 566 | else |
567 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
568 | ||
569 | cupsdPauseListening(); | |
570 | } | |
571 | ||
572 | /* | |
573 | * Check for any active jobs... | |
574 | */ | |
575 | ||
576 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); | |
577 | job; | |
578 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
bd7854cb | 579 | if (job->state_value == IPP_JOB_PROCESSING) |
ef416fc2 | 580 | break; |
581 | ||
582 | /* | |
583 | * Restart if all clients are closed and all jobs finished, or | |
584 | * if the reload timeout has elapsed... | |
585 | */ | |
586 | ||
bd7854cb | 587 | if ((cupsArrayCount(Clients) == 0 && |
588 | (!job || NeedReload != RELOAD_ALL)) || | |
ef416fc2 | 589 | (time(NULL) - ReloadTime) >= ReloadTimeout) |
590 | { | |
a4d04587 | 591 | /* |
592 | * Shutdown the server... | |
593 | */ | |
594 | ||
595 | cupsdStopServer(); | |
596 | ||
597 | /* | |
598 | * Read configuration... | |
599 | */ | |
600 | ||
ef416fc2 | 601 | if (!cupsdReadConfiguration()) |
602 | { | |
603 | syslog(LOG_LPR, "Unable to read configuration file \'%s\' - exiting!", | |
604 | ConfigurationFile); | |
605 | break; | |
606 | } | |
a4d04587 | 607 | |
608 | #if HAVE_LAUNCHD | |
4400e98d | 609 | if (Launchd) |
a4d04587 | 610 | { |
611 | if (launchd_sync_conf()) | |
612 | { | |
613 | launchd_reload(); | |
614 | ||
615 | /* | |
616 | * Until rdar://3854821 is fixed we have to exit after the reload... | |
617 | */ | |
618 | ||
619 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "Exiting on launchd_reload"); | |
620 | stop_scheduler = 1; | |
621 | break; | |
622 | } | |
623 | ||
624 | launchd_checkin(); | |
625 | } | |
626 | #endif /* HAVE_LAUNCHD */ | |
627 | ||
628 | /* | |
629 | * Startup the server... | |
630 | */ | |
631 | ||
632 | cupsdStartServer(); | |
ef416fc2 | 633 | } |
634 | } | |
635 | ||
636 | /* | |
637 | * Check for available input or ready output. If select() returns | |
638 | * 0 or -1, something bad happened and we should exit immediately. | |
639 | * | |
640 | * Note that we at least have one listening socket open at all | |
641 | * times. | |
642 | */ | |
643 | ||
644 | memcpy(input, InputSet, SetSize); | |
645 | memcpy(output, OutputSet, SetSize); | |
646 | ||
647 | timeout.tv_sec = select_timeout(fds); | |
648 | timeout.tv_usec = 0; | |
649 | ||
a4d04587 | 650 | #if HAVE_LAUNCHD |
651 | /* | |
652 | * If no other work is scheduled and we're being controlled by | |
653 | * launchd(8) then timeout after 'LaunchdTimeout' seconds of | |
654 | * inactivity... | |
655 | */ | |
656 | ||
bd7854cb | 657 | if (timeout.tv_sec == 86400 && Launchd && LaunchdTimeout && |
a4d04587 | 658 | (!Browsing || !(BrowseLocalProtocols & BROWSE_DNSSD) || |
659 | cupsArrayCount(Printers) == 0)) | |
660 | { | |
661 | timeout.tv_sec = LaunchdTimeout; | |
662 | launchd_idle_exit = 1; | |
663 | } | |
664 | else | |
665 | launchd_idle_exit = 0; | |
666 | #endif /* HAVE_LAUNCHD */ | |
667 | ||
923edb68 | 668 | if (timeout.tv_sec < 86400) /* Only use timeout for < 1 day */ |
669 | fds = select(MaxFDs, input, output, NULL, &timeout); | |
670 | else | |
671 | fds = select(MaxFDs, input, output, NULL, NULL); | |
672 | ||
673 | if (fds < 0) | |
ef416fc2 | 674 | { |
675 | char s[16384], /* String buffer */ | |
676 | *sptr; /* Pointer into buffer */ | |
677 | int slen; /* Length of string buffer */ | |
678 | ||
679 | ||
680 | /* | |
681 | * Got an error from select! | |
682 | */ | |
683 | ||
684 | if (errno == EINTR) /* Just interrupted by a signal */ | |
685 | continue; | |
686 | ||
687 | /* | |
688 | * Log all sorts of debug info to help track down the problem. | |
689 | */ | |
690 | ||
691 | cupsdLogMessage(CUPSD_LOG_EMERG, "select() failed - %s!", | |
692 | strerror(errno)); | |
693 | ||
694 | strcpy(s, "InputSet ="); | |
695 | slen = 10; | |
696 | sptr = s + 10; | |
697 | ||
698 | for (i = 0; i < MaxFDs; i ++) | |
699 | if (FD_ISSET(i, InputSet)) | |
700 | { | |
701 | snprintf(sptr, sizeof(s) - slen, " %d", i); | |
702 | slen += strlen(sptr); | |
703 | sptr += strlen(sptr); | |
704 | } | |
705 | ||
706 | cupsdLogMessage(CUPSD_LOG_EMERG, s); | |
707 | ||
708 | strcpy(s, "OutputSet ="); | |
709 | slen = 11; | |
710 | sptr = s + 11; | |
711 | ||
712 | for (i = 0; i < MaxFDs; i ++) | |
713 | if (FD_ISSET(i, OutputSet)) | |
714 | { | |
715 | snprintf(sptr, sizeof(s) - slen, " %d", i); | |
716 | slen += strlen(sptr); | |
717 | sptr += strlen(sptr); | |
718 | } | |
719 | ||
720 | cupsdLogMessage(CUPSD_LOG_EMERG, s); | |
721 | ||
bd7854cb | 722 | for (i = 0, con = (cupsd_client_t *)cupsArrayFirst(Clients); |
723 | con; | |
724 | i ++, con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 725 | cupsdLogMessage(CUPSD_LOG_EMERG, |
726 | "Clients[%d] = %d, file = %d, state = %d", | |
727 | i, con->http.fd, con->file, con->http.state); | |
728 | ||
bd7854cb | 729 | for (i = 0, lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); |
730 | lis; | |
731 | i ++, lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
ef416fc2 | 732 | cupsdLogMessage(CUPSD_LOG_EMERG, "Listeners[%d] = %d", i, lis->fd); |
733 | ||
734 | cupsdLogMessage(CUPSD_LOG_EMERG, "BrowseSocket = %d", BrowseSocket); | |
735 | ||
923edb68 | 736 | cupsdLogMessage(CUPSD_LOG_EMERG, "CGIPipes[0] = %d", CGIPipes[0]); |
737 | ||
09ec0018 | 738 | #ifdef __APPLE__ |
739 | cupsdLogMessage(CUPSD_LOG_EMERG, "SysEventPipes[0] = %d", | |
740 | SysEventPipes[0]); | |
741 | #endif /* __APPLE__ */ | |
742 | ||
ef416fc2 | 743 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); |
744 | job; | |
745 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
746 | cupsdLogMessage(CUPSD_LOG_EMERG, "Jobs[%d] = %d < [%d %d] > [%d %d]", | |
747 | job->id, | |
748 | job->status_buffer ? job->status_buffer->fd : -1, | |
749 | job->print_pipes[0], job->print_pipes[1], | |
750 | job->back_pipes[0], job->back_pipes[1]); | |
751 | break; | |
752 | } | |
753 | ||
754 | current_time = time(NULL); | |
755 | ||
a4d04587 | 756 | #if HAVE_LAUNCHD |
757 | /* | |
758 | * If no other work was scheduled and we're being controlled by launchd(8) | |
759 | * then timeout after 'LaunchdTimeout' seconds of inactivity... | |
760 | */ | |
761 | ||
762 | if (!fds && launchd_idle_exit) | |
763 | { | |
764 | cupsdLogMessage(CUPSD_LOG_INFO, | |
765 | "Printer sharing is off and there are no jobs pending, " | |
766 | "will restart on demand."); | |
767 | stop_scheduler = 1; | |
768 | break; | |
769 | } | |
770 | #endif /* HAVE_LAUNCHD */ | |
771 | ||
ef416fc2 | 772 | /* |
773 | * Check for status info from job filters... | |
774 | */ | |
775 | ||
776 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); | |
777 | job; | |
778 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
779 | if (job->status_buffer && FD_ISSET(job->status_buffer->fd, input)) | |
780 | { | |
781 | /* | |
782 | * Clear the input bit to avoid updating the next job | |
783 | * using the same status pipe file descriptor... | |
784 | */ | |
785 | ||
786 | FD_CLR(job->status_buffer->fd, input); | |
787 | ||
788 | /* | |
789 | * Read any status messages from the filters... | |
790 | */ | |
791 | ||
792 | cupsdUpdateJob(job); | |
793 | } | |
794 | ||
795 | /* | |
796 | * Update CGI messages as needed... | |
797 | */ | |
798 | ||
799 | if (CGIPipes[0] >= 0 && FD_ISSET(CGIPipes[0], input)) | |
800 | cupsdUpdateCGI(); | |
801 | ||
09ec0018 | 802 | /* |
803 | * Handle system management events as needed... | |
804 | */ | |
805 | ||
806 | #ifdef __APPLE__ | |
807 | if (SysEventPipes[0] >= 0 && FD_ISSET(SysEventPipes[0], input)) | |
808 | cupsdUpdateSystemMonitor(); | |
809 | #endif /* __APPLE__ */ | |
810 | ||
ef416fc2 | 811 | /* |
812 | * Update notifier messages as needed... | |
813 | */ | |
814 | ||
815 | if (NotifierPipes[0] >= 0 && FD_ISSET(NotifierPipes[0], input)) | |
816 | cupsdUpdateNotifierStatus(); | |
817 | ||
818 | /* | |
bd7854cb | 819 | * Expire subscriptions and unload completed jobs as needed... |
ef416fc2 | 820 | */ |
821 | ||
bd7854cb | 822 | if (current_time > expire_time) |
ef416fc2 | 823 | { |
bd7854cb | 824 | if (cupsArrayCount(Subscriptions) > 0) |
825 | cupsdExpireSubscriptions(NULL, NULL); | |
826 | ||
827 | cupsdUnloadCompletedJobs(); | |
ef416fc2 | 828 | |
829 | expire_time = current_time; | |
830 | } | |
831 | ||
832 | /* | |
833 | * Update the browse list as needed... | |
834 | */ | |
835 | ||
fa73b229 | 836 | if (Browsing && BrowseRemoteProtocols) |
ef416fc2 | 837 | { |
838 | if (BrowseSocket >= 0 && FD_ISSET(BrowseSocket, input)) | |
839 | cupsdUpdateCUPSBrowse(); | |
840 | ||
841 | if (PollPipe >= 0 && FD_ISSET(PollPipe, input)) | |
842 | cupsdUpdatePolling(); | |
843 | ||
844 | #ifdef HAVE_LIBSLP | |
b423cd4c | 845 | if ((BrowseRemoteProtocols & BROWSE_SLP) && |
ef416fc2 | 846 | BrowseSLPRefresh <= current_time) |
847 | cupsdUpdateSLPBrowse(); | |
848 | #endif /* HAVE_LIBSLP */ | |
b423cd4c | 849 | |
850 | #ifdef HAVE_LDAP | |
851 | if ((BrowseRemoteProtocols & BROWSE_LDAP) && | |
852 | BrowseLDAPRefresh <= current_time) | |
853 | cupsdUpdateLDAPBrowse(); | |
854 | #endif /* HAVE_LDAP */ | |
fa73b229 | 855 | } |
ef416fc2 | 856 | |
fa73b229 | 857 | if (Browsing && BrowseLocalProtocols && current_time > browse_time) |
858 | { | |
859 | cupsdSendBrowseList(); | |
860 | browse_time = current_time; | |
ef416fc2 | 861 | } |
862 | ||
863 | /* | |
864 | * Check for new connections on the "listen" sockets... | |
865 | */ | |
866 | ||
bd7854cb | 867 | for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); |
868 | lis; | |
869 | lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
ef416fc2 | 870 | if (lis->fd >= 0 && FD_ISSET(lis->fd, input)) |
871 | { | |
872 | FD_CLR(lis->fd, input); | |
873 | cupsdAcceptClient(lis); | |
874 | } | |
875 | ||
876 | /* | |
877 | * Check for new data on the client sockets... | |
878 | */ | |
879 | ||
bd7854cb | 880 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
881 | con; | |
882 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 883 | { |
884 | /* | |
885 | * Process the input buffer... | |
886 | */ | |
887 | ||
888 | if (FD_ISSET(con->http.fd, input) || con->http.used) | |
889 | { | |
bd7854cb | 890 | int fd = con->file; |
891 | ||
892 | ||
ef416fc2 | 893 | FD_CLR(con->http.fd, input); |
894 | ||
895 | if (!cupsdReadClient(con)) | |
896 | { | |
bd7854cb | 897 | if (fd >= 0) |
898 | FD_CLR(fd, input); | |
ef416fc2 | 899 | |
ef416fc2 | 900 | continue; |
901 | } | |
902 | } | |
903 | ||
904 | /* | |
905 | * Write data as needed... | |
906 | */ | |
907 | ||
908 | if (con->pipe_pid && FD_ISSET(con->file, input)) | |
909 | { | |
910 | /* | |
911 | * Keep track of pending input from the file/pipe separately | |
912 | * so that we don't needlessly spin on select() when the web | |
913 | * client is not ready to receive data... | |
914 | */ | |
915 | ||
916 | FD_CLR(con->file, input); | |
917 | con->file_ready = 1; | |
918 | ||
919 | #ifdef DEBUG | |
920 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "main: Data ready file %d!", | |
921 | con->file); | |
922 | #endif /* DEBUG */ | |
923 | ||
924 | if (!FD_ISSET(con->http.fd, output)) | |
925 | { | |
926 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
927 | "main: Removing fd %d from InputSet...", con->file); | |
923edb68 | 928 | FD_CLR(con->file, input); |
ef416fc2 | 929 | FD_CLR(con->file, InputSet); |
930 | } | |
931 | } | |
932 | ||
933 | if (FD_ISSET(con->http.fd, output)) | |
934 | { | |
935 | FD_CLR(con->http.fd, output); | |
936 | ||
937 | if (!con->pipe_pid || con->file_ready) | |
938 | if (!cupsdWriteClient(con)) | |
ef416fc2 | 939 | continue; |
ef416fc2 | 940 | } |
941 | ||
942 | /* | |
943 | * Check the activity and close old clients... | |
944 | */ | |
945 | ||
946 | activity = current_time - Timeout; | |
947 | if (con->http.activity < activity && !con->pipe_pid) | |
948 | { | |
949 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
950 | "Closing client %d after %d seconds of inactivity...", | |
951 | con->http.fd, Timeout); | |
952 | ||
953 | cupsdCloseClient(con); | |
ef416fc2 | 954 | continue; |
955 | } | |
956 | } | |
957 | ||
958 | /* | |
959 | * Update any pending multi-file documents... | |
960 | */ | |
961 | ||
962 | if ((current_time - senddoc_time) >= 10) | |
963 | { | |
964 | cupsdCheckJobs(); | |
965 | senddoc_time = current_time; | |
966 | } | |
967 | ||
ef416fc2 | 968 | /* |
969 | * Log memory usage every minute... | |
970 | */ | |
971 | ||
bd7854cb | 972 | if ((current_time - mallinfo_time) >= 60 && LogLevel >= CUPSD_LOG_DEBUG2) |
ef416fc2 | 973 | { |
4400e98d | 974 | #ifdef HAVE_MALLINFO |
ef416fc2 | 975 | struct mallinfo mem; /* Malloc information */ |
976 | ||
977 | ||
978 | mem = mallinfo(); | |
bd7854cb | 979 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
ef416fc2 | 980 | "mallinfo: arena = %d, used = %d, free = %d\n", |
981 | mem.arena, mem.usmblks + mem.uordblks, | |
982 | mem.fsmblks + mem.fordblks); | |
4400e98d | 983 | #endif /* HAVE_MALLINFO */ |
984 | ||
757d2cad | 985 | string_count = _cupsStrStatistics(&alloc_bytes, &total_bytes); |
bd7854cb | 986 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
4400e98d | 987 | "stringpool: " CUPS_LLFMT " strings, " |
988 | CUPS_LLFMT " allocated, " CUPS_LLFMT " total bytes", | |
989 | CUPS_LLCAST string_count, CUPS_LLCAST alloc_bytes, | |
990 | CUPS_LLCAST total_bytes); | |
991 | ||
ef416fc2 | 992 | mallinfo_time = current_time; |
993 | } | |
ef416fc2 | 994 | |
995 | /* | |
996 | * Update the root certificate once every 5 minutes... | |
997 | */ | |
998 | ||
999 | if ((current_time - RootCertTime) >= RootCertDuration && RootCertDuration && | |
1000 | !RunUser) | |
1001 | { | |
1002 | /* | |
1003 | * Update the root certificate... | |
1004 | */ | |
1005 | ||
1006 | cupsdDeleteCert(0); | |
1007 | cupsdAddCert(0, "root"); | |
1008 | } | |
fa73b229 | 1009 | |
1010 | /* | |
1011 | * Handle OS-specific event notification for any events that have | |
1012 | * accumulated. Don't send these more than once a second... | |
1013 | */ | |
1014 | ||
1015 | if (LastEvent && (time(NULL) - LastEventTime) > 1) | |
1016 | { | |
1017 | #ifdef HAVE_NOTIFY_POST | |
1018 | if (LastEvent & CUPSD_EVENT_PRINTER_CHANGED) | |
1019 | { | |
e00b005a | 1020 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1021 | "notify_post(\"com.apple.printerListChange\")"); |
1022 | notify_post("com.apple.printerListChange"); | |
1023 | } | |
1024 | ||
1025 | if (LastEvent & CUPSD_EVENT_PRINTER_STATE_CHANGED) | |
1026 | { | |
e00b005a | 1027 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1028 | "notify_post(\"com.apple.printerHistoryChange\")"); |
1029 | notify_post("com.apple.printerHistoryChange"); | |
1030 | } | |
1031 | ||
1032 | if (LastEvent & (CUPSD_EVENT_JOB_STATE_CHANGED | | |
1033 | CUPSD_EVENT_JOB_CONFIG_CHANGED | | |
1034 | CUPSD_EVENT_JOB_PROGRESS)) | |
1035 | { | |
e00b005a | 1036 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1037 | "notify_post(\"com.apple.jobChange\")"); |
1038 | notify_post("com.apple.jobChange"); | |
1039 | } | |
1040 | #endif /* HAVE_NOTIFY_POST */ | |
1041 | ||
1042 | /* | |
1043 | * Reset the accumulated events and notification time... | |
1044 | */ | |
1045 | ||
1046 | LastEventTime = time(NULL); | |
1047 | LastEvent = CUPSD_EVENT_NONE; | |
1048 | } | |
ef416fc2 | 1049 | } |
1050 | ||
1051 | /* | |
1052 | * Log a message based on what happened... | |
1053 | */ | |
1054 | ||
1055 | if (stop_scheduler) | |
1056 | cupsdLogMessage(CUPSD_LOG_INFO, "Scheduler shutting down normally."); | |
1057 | else | |
1058 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1059 | "Scheduler shutting down due to program error."); | |
1060 | ||
1061 | /* | |
1062 | * Close all network clients and stop all jobs... | |
1063 | */ | |
1064 | ||
1065 | cupsdStopServer(); | |
1066 | ||
bd7854cb | 1067 | cupsdFreeAllJobs(); |
ef416fc2 | 1068 | |
e1d6a774 | 1069 | #ifdef __APPLE__ |
09ec0018 | 1070 | cupsdStopSystemMonitor(); |
e1d6a774 | 1071 | #endif /* __APPLE__ */ |
09ec0018 | 1072 | |
a4d04587 | 1073 | #ifdef HAVE_LAUNCHD |
1074 | /* | |
1075 | * Update the launchd config file as needed... | |
1076 | */ | |
1077 | ||
1078 | launchd_sync_conf(); | |
1079 | #endif /* HAVE_LAUNCHD */ | |
1080 | ||
ef416fc2 | 1081 | #ifdef __sgi |
1082 | /* | |
1083 | * Remove the fake IRIX lpsched lock file, but only if the existing | |
1084 | * file is not a FIFO which indicates that the real IRIX lpsched is | |
1085 | * running... | |
1086 | */ | |
1087 | ||
1088 | if (!stat("/var/spool/lp/FIFO", &statbuf)) | |
1089 | if (!S_ISFIFO(statbuf.st_mode)) | |
1090 | unlink("/var/spool/lp/SCHEDLOCK"); | |
1091 | #endif /* __sgi */ | |
1092 | ||
1093 | /* | |
1094 | * Free memory used by FD sets and return... | |
1095 | */ | |
1096 | ||
1097 | free(InputSet); | |
1098 | free(OutputSet); | |
1099 | free(input); | |
1100 | free(output); | |
1101 | ||
1102 | return (!stop_scheduler); | |
1103 | } | |
1104 | ||
1105 | ||
1106 | /* | |
1107 | * 'cupsdClosePipe()' - Close a pipe as necessary. | |
1108 | */ | |
1109 | ||
1110 | void | |
1111 | cupsdClosePipe(int *fds) /* I - Pipe file descriptors (2) */ | |
1112 | { | |
1113 | /* | |
1114 | * Close file descriptors as needed... | |
1115 | */ | |
1116 | ||
1117 | if (fds[0] >= 0) | |
1118 | { | |
1119 | close(fds[0]); | |
1120 | fds[0] = -1; | |
1121 | } | |
1122 | ||
1123 | if (fds[1] >= 0) | |
1124 | { | |
1125 | close(fds[1]); | |
1126 | fds[1] = -1; | |
1127 | } | |
1128 | } | |
1129 | ||
1130 | ||
1131 | /* | |
1132 | * 'cupsdOpenPipe()' - Create a pipe which is closed on exec. | |
1133 | */ | |
1134 | ||
1135 | int /* O - 0 on success, -1 on error */ | |
1136 | cupsdOpenPipe(int *fds) /* O - Pipe file descriptors (2) */ | |
1137 | { | |
1138 | /* | |
1139 | * Create the pipe... | |
1140 | */ | |
1141 | ||
1142 | if (pipe(fds)) | |
e1d6a774 | 1143 | { |
1144 | fds[0] = -1; | |
1145 | fds[1] = -1; | |
1146 | ||
ef416fc2 | 1147 | return (-1); |
e1d6a774 | 1148 | } |
ef416fc2 | 1149 | |
1150 | /* | |
1151 | * Set the "close on exec" flag on each end of the pipe... | |
1152 | */ | |
1153 | ||
1154 | if (fcntl(fds[0], F_SETFD, fcntl(fds[0], F_GETFD) | FD_CLOEXEC)) | |
1155 | { | |
1156 | close(fds[0]); | |
1157 | close(fds[1]); | |
e1d6a774 | 1158 | |
1159 | fds[0] = -1; | |
1160 | fds[1] = -1; | |
1161 | ||
ef416fc2 | 1162 | return (-1); |
1163 | } | |
1164 | ||
1165 | if (fcntl(fds[1], F_SETFD, fcntl(fds[1], F_GETFD) | FD_CLOEXEC)) | |
1166 | { | |
1167 | close(fds[0]); | |
1168 | close(fds[1]); | |
e1d6a774 | 1169 | |
1170 | fds[0] = -1; | |
1171 | fds[1] = -1; | |
1172 | ||
ef416fc2 | 1173 | return (-1); |
1174 | } | |
1175 | ||
1176 | /* | |
1177 | * Return 0 indicating success... | |
1178 | */ | |
1179 | ||
1180 | return (0); | |
1181 | } | |
1182 | ||
1183 | ||
ef416fc2 | 1184 | /* |
1185 | * 'cupsdClearString()' - Clear a string. | |
1186 | */ | |
1187 | ||
1188 | void | |
1189 | cupsdClearString(char **s) /* O - String value */ | |
1190 | { | |
1191 | if (s && *s) | |
1192 | { | |
1193 | free(*s); | |
1194 | *s = NULL; | |
1195 | } | |
1196 | } | |
1197 | ||
1198 | ||
1199 | /* | |
1200 | * 'cupsdHoldSignals()' - Hold child and termination signals. | |
1201 | */ | |
1202 | ||
1203 | void | |
1204 | cupsdHoldSignals(void) | |
1205 | { | |
1206 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
1207 | sigset_t newmask; /* New POSIX signal mask */ | |
1208 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
1209 | ||
1210 | ||
1211 | holdcount ++; | |
1212 | if (holdcount > 1) | |
1213 | return; | |
1214 | ||
1215 | #ifdef HAVE_SIGSET | |
1216 | sighold(SIGTERM); | |
1217 | sighold(SIGCHLD); | |
1218 | #elif defined(HAVE_SIGACTION) | |
1219 | sigemptyset(&newmask); | |
1220 | sigaddset(&newmask, SIGTERM); | |
1221 | sigaddset(&newmask, SIGCHLD); | |
1222 | sigprocmask(SIG_BLOCK, &newmask, &holdmask); | |
1223 | #endif /* HAVE_SIGSET */ | |
1224 | } | |
1225 | ||
1226 | ||
ef416fc2 | 1227 | /* |
1228 | * 'cupsdReleaseSignals()' - Release signals for delivery. | |
1229 | */ | |
1230 | ||
1231 | void | |
1232 | cupsdReleaseSignals(void) | |
1233 | { | |
1234 | holdcount --; | |
1235 | if (holdcount > 0) | |
1236 | return; | |
1237 | ||
1238 | #ifdef HAVE_SIGSET | |
1239 | sigrelse(SIGTERM); | |
1240 | sigrelse(SIGCHLD); | |
1241 | #elif defined(HAVE_SIGACTION) | |
1242 | sigprocmask(SIG_SETMASK, &holdmask, NULL); | |
1243 | #endif /* HAVE_SIGSET */ | |
1244 | } | |
1245 | ||
1246 | ||
1247 | /* | |
1248 | * 'cupsdSetString()' - Set a string value. | |
1249 | */ | |
1250 | ||
1251 | void | |
1252 | cupsdSetString(char **s, /* O - New string */ | |
1253 | const char *v) /* I - String value */ | |
1254 | { | |
1255 | if (!s || *s == v) | |
1256 | return; | |
1257 | ||
1258 | if (*s) | |
1259 | free(*s); | |
1260 | ||
1261 | if (v) | |
1262 | *s = strdup(v); | |
1263 | else | |
1264 | *s = NULL; | |
1265 | } | |
1266 | ||
1267 | ||
1268 | /* | |
1269 | * 'cupsdSetStringf()' - Set a formatted string value. | |
1270 | */ | |
1271 | ||
1272 | void | |
1273 | cupsdSetStringf(char **s, /* O - New string */ | |
1274 | const char *f, /* I - Printf-style format string */ | |
1275 | ...) /* I - Additional args as needed */ | |
1276 | { | |
1277 | char v[4096]; /* Formatting string value */ | |
1278 | va_list ap; /* Argument pointer */ | |
1279 | char *olds; /* Old string */ | |
1280 | ||
1281 | ||
1282 | if (!s) | |
1283 | return; | |
1284 | ||
1285 | olds = *s; | |
1286 | ||
1287 | if (f) | |
1288 | { | |
1289 | va_start(ap, f); | |
1290 | vsnprintf(v, sizeof(v), f, ap); | |
1291 | va_end(ap); | |
1292 | ||
1293 | *s = strdup(v); | |
1294 | } | |
1295 | else | |
1296 | *s = NULL; | |
1297 | ||
1298 | if (olds) | |
1299 | free(olds); | |
1300 | } | |
1301 | ||
1302 | ||
a4d04587 | 1303 | #ifdef HAVE_LAUNCHD |
1304 | /* | |
1305 | * 'launchd_checkin()' - Check-in with launchd and collect the listening fds. | |
1306 | */ | |
1307 | ||
1308 | static void | |
1309 | launchd_checkin(void) | |
1310 | { | |
1311 | int i, /* Looping var */ | |
bd7854cb | 1312 | count, /* Numebr of listeners */ |
a4d04587 | 1313 | portnum; /* Port number */ |
1314 | launch_data_t ld_msg, /* Launch data message */ | |
1315 | ld_resp, /* Launch data response */ | |
1316 | ld_array, /* Launch data array */ | |
1317 | ld_sockets, /* Launch data sockets dictionary */ | |
1318 | ld_runatload, /* Run-at-load setting */ | |
1319 | tmp; /* Launch data */ | |
1320 | cupsd_listener_t *lis; /* Listeners array */ | |
1321 | http_addr_t addr; /* Address variable */ | |
1322 | socklen_t addrlen; /* Length of address */ | |
1323 | bool runatload; /* Run-at-load setting value */ | |
1324 | ||
1325 | ||
1326 | cupsdLogMessage(CUPSD_LOG_DEBUG, "launchd_checkin: pid=%d", (int)getpid()); | |
1327 | ||
1328 | /* | |
1329 | * Check-in with launchd... | |
1330 | */ | |
1331 | ||
1332 | ld_msg = launch_data_new_string(LAUNCH_KEY_CHECKIN); | |
1333 | if ((ld_resp = launch_msg(ld_msg)) == NULL) | |
1334 | { | |
bd7854cb | 1335 | cupsdLogMessage(CUPSD_LOG_ERROR, |
a4d04587 | 1336 | "launchd_checkin: launch_msg(\"" LAUNCH_KEY_CHECKIN |
1337 | "\") IPC failure"); | |
1338 | exit(EXIT_FAILURE); | |
1339 | } | |
bd7854cb | 1340 | |
a4d04587 | 1341 | if (launch_data_get_type(ld_resp) == LAUNCH_DATA_ERRNO) |
1342 | { | |
1343 | errno = launch_data_get_errno(ld_resp); | |
1344 | cupsdLogMessage(CUPSD_LOG_ERROR, "launchd_checkin: Check-in failed: %s", | |
1345 | strerror(errno)); | |
1346 | exit(EXIT_FAILURE); | |
1347 | } | |
1348 | ||
1349 | /* | |
1350 | * Get the "run-at-load" setting... | |
1351 | */ | |
1352 | ||
bd7854cb | 1353 | if ((ld_runatload = |
1354 | launch_data_dict_lookup(ld_resp, LAUNCH_JOBKEY_RUNATLOAD)) != NULL && | |
a4d04587 | 1355 | launch_data_get_type(ld_runatload) == LAUNCH_DATA_BOOL) |
1356 | runatload = launch_data_get_bool(ld_runatload); | |
1357 | else | |
1358 | { | |
1359 | errno = launch_data_get_errno(ld_resp); | |
1360 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1361 | "launchd_checkin: Unable to find Run-at-load setting: %s", | |
1362 | strerror(errno)); | |
1363 | exit(EXIT_FAILURE); | |
1364 | } | |
1365 | ||
1366 | cupsdLogMessage(CUPSD_LOG_DEBUG, "launchd_checkin: Run-at-load=%s", | |
1367 | runatload ? "true" : "false"); | |
1368 | ||
1369 | /* | |
1370 | * Get the sockets dictionary... | |
1371 | */ | |
1372 | ||
1373 | if (!(ld_sockets = launch_data_dict_lookup(ld_resp, LAUNCH_JOBKEY_SOCKETS))) | |
1374 | { | |
1375 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1376 | "launchd_checkin: No sockets found to answer requests on!"); | |
1377 | exit(EXIT_FAILURE); | |
1378 | } | |
bd7854cb | 1379 | |
a4d04587 | 1380 | /* |
1381 | * Get the array of listener sockets... | |
1382 | */ | |
1383 | ||
1384 | if (!(ld_array = launch_data_dict_lookup(ld_sockets, "Listeners"))) | |
1385 | { | |
1386 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1387 | "launchd_checkin: No sockets found to answer requests on!"); | |
1388 | exit(EXIT_FAILURE); | |
1389 | } | |
1390 | ||
1391 | /* | |
1392 | * Add listening fd(s) to the Listener array... | |
1393 | */ | |
1394 | ||
1395 | if (launch_data_get_type(ld_array) == LAUNCH_DATA_ARRAY) | |
1396 | { | |
1397 | /* | |
1398 | * Free the listeners array built from cupsd.conf... | |
1399 | */ | |
bd7854cb | 1400 | |
1401 | cupsdDeleteAllListeners(); | |
a4d04587 | 1402 | |
1403 | /* | |
bd7854cb | 1404 | * Create a new array of listeners from the launchd data... |
a4d04587 | 1405 | */ |
1406 | ||
bd7854cb | 1407 | Listeners = cupsArrayNew(NULL, NULL); |
1408 | count = launch_data_array_get_count(ld_array); | |
1409 | ||
1410 | for (i = 0; i < count; i ++) | |
a4d04587 | 1411 | { |
1412 | /* | |
1413 | * Copy the current address and log it... | |
1414 | */ | |
bd7854cb | 1415 | |
1416 | if ((lis = calloc(1, sizeof(cupsd_listener_t))) == NULL) | |
1417 | { | |
1418 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1419 | "launchd_checkin: Unable to allocate listener - %s.", | |
1420 | strerror(errno)); | |
1421 | exit(EXIT_FAILURE); | |
1422 | } | |
1423 | ||
1424 | cupsArrayAdd(Listeners, lis); | |
1425 | ||
a4d04587 | 1426 | tmp = launch_data_array_get_index(ld_array, i); |
1427 | lis->fd = launch_data_get_fd(tmp); | |
1428 | addrlen = sizeof(lis->address); | |
1429 | ||
1430 | if (getsockname(lis->fd, (struct sockaddr *)&(lis->address), &addrlen)) | |
1431 | { | |
1432 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1433 | "launchd_checkin: Unable to get local address - %s", | |
1434 | strerror(errno)); | |
1435 | } | |
bd7854cb | 1436 | |
a4d04587 | 1437 | # ifdef HAVE_SSL |
1438 | portnum = 0; | |
bd7854cb | 1439 | |
a4d04587 | 1440 | # ifdef AF_INET6 |
1441 | if (addr.addr.sa_family == AF_INET6) | |
1442 | portnum = ntohs(addr.ipv6.sin6_port); | |
1443 | else | |
1444 | # endif /* AF_INET6 */ | |
a4d04587 | 1445 | if (addr.addr.sa_family == AF_INET) |
1446 | portnum = ntohs(addr.ipv4.sin_port); | |
1447 | ||
1448 | if (portnum == 443) | |
1449 | lis->encryption = HTTP_ENCRYPT_ALWAYS; | |
1450 | # endif /* HAVE_SSL */ | |
1451 | } | |
1452 | } | |
1453 | ||
1454 | /* | |
1455 | * Collect the browse socket (if there is one)... | |
1456 | */ | |
1457 | ||
1458 | if ((ld_array = launch_data_dict_lookup(ld_sockets, "BrowseSockets"))) | |
1459 | { | |
1460 | if (launch_data_get_type(ld_array) == LAUNCH_DATA_ARRAY) | |
1461 | { | |
1462 | tmp = launch_data_array_get_index(ld_array, 0); | |
1463 | ||
1464 | if (launch_data_get_type(tmp) == LAUNCH_DATA_FD) | |
1465 | { | |
1466 | if (BrowseSocket != -1) | |
1467 | close(BrowseSocket); | |
1468 | ||
1469 | BrowseSocket = launch_data_get_fd(tmp); | |
1470 | } | |
1471 | else | |
1472 | cupsdLogMessage(CUPSD_LOG_WARN, | |
1473 | "launchd_checkin: BrowseSocket not a fd!"); | |
1474 | } | |
1475 | else | |
1476 | cupsdLogMessage(CUPSD_LOG_WARN, | |
1477 | "launchd_checkin: BrowseSockets is not an array!"); | |
1478 | } | |
1479 | else | |
1480 | cupsdLogMessage(CUPSD_LOG_DEBUG, "launchd_checkin: No BrowseSockets"); | |
1481 | ||
1482 | launch_data_free(ld_msg); | |
1483 | launch_data_free(ld_resp); | |
1484 | } | |
1485 | ||
1486 | ||
1487 | /* | |
1488 | * 'launchd_reload()' - Tell launchd to reload the configuration file to pick | |
1489 | * up the new listening directives. | |
1490 | */ | |
1491 | ||
1492 | static void | |
1493 | launchd_reload(void) | |
1494 | { | |
1495 | int child_status; /* Exit status of child process */ | |
1496 | pid_t child_pid, /* Child PID */ | |
1497 | waitpid_status; /* Child process exit status */ | |
1498 | char *argv[4]; /* Argument strings */ | |
1499 | ||
1500 | ||
1501 | /* | |
1502 | * The current launchd doesn't support a reload option (rdar://3854821). | |
1503 | * Until this is fixed we need to reload the config file by execing launchctl | |
1504 | * twice (to unload then load). NOTE: This will cause us to exit on SIGTERM | |
1505 | * which will cancel all client & job activity. | |
1506 | * | |
1507 | * After this is fixed we'll be able to tell launchd to reload the file | |
1508 | * and pick up the new listening descriptors without disrupting current | |
1509 | * activity. | |
1510 | */ | |
1511 | ||
1512 | /* | |
1513 | * Unloading the current configuration will cause launchd to send us a SIGTERM; | |
1514 | * block it for now so we can get our work done... | |
1515 | */ | |
1516 | ||
1517 | cupsdHoldSignals(); | |
1518 | ||
1519 | /* | |
1520 | * Set up the unload arguments to launchctl... | |
1521 | */ | |
1522 | ||
1523 | argv[0] = "/bin/launchctl"; | |
1524 | argv[1] = "unload"; | |
1525 | argv[2] = LaunchdConf; | |
1526 | argv[3] = NULL; | |
1527 | ||
1528 | if (cupsdStartProcess(argv[0], argv, NULL, -1, -1, -1, -1, 1, &child_pid) < 0) | |
1529 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1530 | "launchd_reload: Unable to execute %s - %s", argv[0], | |
1531 | strerror(errno)); | |
1532 | else | |
1533 | { | |
1534 | do | |
1535 | { | |
1536 | waitpid_status = waitpid(child_pid, &child_status, 0); | |
1537 | } | |
1538 | while (waitpid_status == (pid_t)-1 && errno == EINTR); | |
1539 | ||
1540 | if (WIFSIGNALED(child_status)) | |
1541 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
bd7854cb | 1542 | "launchd_reload: %s pid %d crashed on signal %d!", |
a4d04587 | 1543 | basename(argv[0]), child_pid, WTERMSIG(child_status)); |
1544 | else | |
1545 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
bd7854cb | 1546 | "launchd_reload: %s pid %d stopped with status %d!", |
a4d04587 | 1547 | basename(argv[0]), child_pid, WEXITSTATUS(child_status)); |
1548 | ||
1549 | /* | |
1550 | * Do it again with the load command... | |
1551 | */ | |
bd7854cb | 1552 | |
a4d04587 | 1553 | argv[1] = "load"; |
1554 | ||
1555 | if (cupsdStartProcess(argv[0], argv, NULL, -1, -1, -1, -1, 1, | |
1556 | &child_pid) < 0) | |
1557 | { | |
1558 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1559 | "launchd_reload: Unable to fork for %s - %s", argv[0], | |
1560 | strerror(errno)); | |
1561 | } | |
1562 | else | |
1563 | { | |
1564 | do | |
1565 | { | |
1566 | waitpid_status = waitpid(child_pid, &child_status, 0); | |
1567 | } while (waitpid_status == (pid_t)-1 && errno == EINTR); | |
1568 | ||
1569 | if (WIFSIGNALED(child_status)) | |
1570 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1571 | "launchd_reload: %s pid %d crashed on signal %d!", | |
1572 | basename(argv[0]), child_pid, WTERMSIG(child_status)); | |
1573 | else | |
1574 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1575 | "launchd_reload: %s pid %d stopped with status %d", | |
1576 | basename(argv[0]), child_pid, | |
1577 | WEXITSTATUS(child_status)); | |
1578 | } | |
1579 | } | |
1580 | ||
1581 | /* | |
1582 | * Leave signals blocked since exit() will be called momentarily anyways... | |
1583 | */ | |
1584 | } | |
1585 | ||
1586 | ||
1587 | /* | |
bd7854cb | 1588 | * 'launchd_sync_conf()' - Re-write the launchd(8) config file |
a4d04587 | 1589 | * org.cups.cupsd.plist based on cupsd.conf. |
1590 | */ | |
1591 | ||
1592 | static int /* O - 1 if the file was updated */ | |
1593 | launchd_sync_conf(void) | |
1594 | { | |
bd7854cb | 1595 | int portnum; /* Port number */ |
4400e98d | 1596 | CFMutableDictionaryRef cupsd_dict, /* org.cups.cupsd.plist dictionary */ |
a4d04587 | 1597 | sockets, /* Sockets dictionary */ |
1598 | listener; /* Listener dictionary */ | |
bd7854cb | 1599 | CFDataRef resourceData; /* XML property list */ |
a4d04587 | 1600 | CFMutableArrayRef array; /* Array */ |
1601 | CFNumberRef socket_mode; /* Domain socket mode bits */ | |
1602 | CFStringRef socket_path; /* Domain socket path */ | |
1603 | CFTypeRef value; /* CF value */ | |
1604 | CFURLRef fileURL; /* File URL */ | |
1605 | SInt32 errorCode; /* Error code */ | |
1606 | cupsd_listener_t *lis; /* Current listening socket */ | |
1607 | struct servent *service; /* Services data base entry */ | |
1608 | char temp[1024]; /* Temporary buffer for value */ | |
1609 | struct stat cupsd_sb, /* File info for cupsd.conf */ | |
4400e98d | 1610 | launchd_sb; /* File info for org.cups.cupsd.plist */ |
a4d04587 | 1611 | |
1612 | ||
1613 | /* | |
1614 | * If the launchd conf file modification time is newer than the cupsd.conf | |
1615 | * time then there's nothing to do... | |
1616 | */ | |
1617 | ||
bd7854cb | 1618 | if (!stat(ConfigurationFile, &cupsd_sb) && |
1619 | !stat(LaunchdConf, &launchd_sb) && | |
a4d04587 | 1620 | launchd_sb.st_mtimespec.tv_sec >= cupsd_sb.st_mtimespec.tv_sec) |
1621 | { | |
1622 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
bd7854cb | 1623 | "launchd_sync_conf: Nothing to do, pid=%d.", |
a4d04587 | 1624 | (int)getpid()); |
1625 | return (0); | |
1626 | } | |
1627 | ||
1628 | /* | |
4400e98d | 1629 | * Time to write a new 'org.cups.cupsd.plist' file. |
a4d04587 | 1630 | * Create the new dictionary and populate it with values... |
1631 | */ | |
1632 | ||
1633 | if ((cupsd_dict = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, | |
1634 | &kCFTypeDictionaryKeyCallBacks, | |
1635 | &kCFTypeDictionaryValueCallBacks)) != NULL) | |
1636 | { | |
e00b005a | 1637 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_LABEL), |
1638 | CFSTR("org.cups.cupsd")); | |
e00b005a | 1639 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_ONDEMAND), |
1640 | kCFBooleanTrue); | |
a4d04587 | 1641 | |
1642 | if ((Browsing && BrowseLocalProtocols && cupsArrayCount(Printers)) || | |
1643 | cupsArrayCount(ActiveJobs)) | |
e00b005a | 1644 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_RUNATLOAD), |
1645 | kCFBooleanTrue); | |
a4d04587 | 1646 | else |
e00b005a | 1647 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_RUNATLOAD), |
1648 | kCFBooleanFalse); | |
a4d04587 | 1649 | |
4400e98d | 1650 | #ifdef LAUNCH_JOBKEY_SERVICEIPC |
e00b005a | 1651 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_SERVICEIPC), |
1652 | kCFBooleanTrue); | |
4400e98d | 1653 | #endif /* LAUNCH_JOBKEY_SERVICEIPC */ |
a4d04587 | 1654 | |
1655 | if ((array = CFArrayCreateMutable(kCFAllocatorDefault, 2, | |
1656 | &kCFTypeArrayCallBacks)) != NULL) | |
1657 | { | |
e00b005a | 1658 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_PROGRAMARGUMENTS), |
1659 | array); | |
a4d04587 | 1660 | CFArrayAppendValue(array, CFSTR("/usr/sbin/cupsd")); |
1661 | CFArrayAppendValue(array, CFSTR("-l")); | |
1662 | CFRelease(array); | |
1663 | } | |
1664 | ||
1665 | /* | |
1666 | * Add a sockets dictionary... | |
1667 | */ | |
bd7854cb | 1668 | |
a4d04587 | 1669 | if ((sockets = (CFMutableDictionaryRef)CFDictionaryCreateMutable( |
1670 | kCFAllocatorDefault, 0, | |
1671 | &kCFTypeDictionaryKeyCallBacks, | |
1672 | &kCFTypeDictionaryValueCallBacks)) != NULL) | |
1673 | { | |
e00b005a | 1674 | CFDictionaryAddValue(cupsd_dict, CFSTR(LAUNCH_JOBKEY_SOCKETS), sockets); |
a4d04587 | 1675 | |
1676 | /* | |
1677 | * Add a Listeners array to the sockets dictionary... | |
1678 | */ | |
bd7854cb | 1679 | |
a4d04587 | 1680 | if ((array = CFArrayCreateMutable(kCFAllocatorDefault, 0, |
1681 | &kCFTypeArrayCallBacks)) != NULL) | |
1682 | { | |
1683 | CFDictionaryAddValue(sockets, CFSTR("Listeners"), array); | |
1684 | ||
1685 | /* | |
1686 | * For each listener add a dictionary to the listeners array... | |
1687 | */ | |
bd7854cb | 1688 | |
1689 | for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); | |
1690 | lis; | |
1691 | lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
a4d04587 | 1692 | { |
1693 | if ((listener = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, | |
1694 | &kCFTypeDictionaryKeyCallBacks, | |
1695 | &kCFTypeDictionaryValueCallBacks)) != NULL) | |
1696 | { | |
1697 | CFArrayAppendValue(array, listener); | |
1698 | ||
1699 | # ifdef AF_LOCAL | |
1700 | if (lis->address.addr.sa_family == AF_LOCAL) | |
1701 | { | |
bd7854cb | 1702 | if ((socket_path = CFStringCreateWithCString(kCFAllocatorDefault, |
1703 | lis->address.un.sun_path, | |
a4d04587 | 1704 | kCFStringEncodingUTF8))) |
1705 | { | |
e00b005a | 1706 | CFDictionaryAddValue(listener, |
1707 | CFSTR(LAUNCH_JOBSOCKETKEY_PATHNAME), | |
a4d04587 | 1708 | socket_path); |
1709 | CFRelease(socket_path); | |
1710 | } | |
1711 | portnum = 0140777; /* (S_IFSOCK|S_IRWXU|S_IRWXG|S_IRWXO) or * | |
1712 | * 49663d decimal */ | |
1713 | if ((socket_mode = CFNumberCreate(kCFAllocatorDefault, | |
1714 | kCFNumberIntType, &portnum))) | |
1715 | { | |
1716 | CFDictionaryAddValue(listener, CFSTR("SockPathMode"), | |
1717 | socket_mode); | |
1718 | CFRelease(socket_mode); | |
1719 | } | |
1720 | } | |
1721 | else | |
1722 | # endif /* AF_LOCAL */ | |
1723 | { | |
1724 | # ifdef AF_INET6 | |
1725 | if (lis->address.addr.sa_family == AF_INET6) | |
1726 | { | |
e00b005a | 1727 | CFDictionaryAddValue(listener, |
1728 | CFSTR(LAUNCH_JOBSOCKETKEY_FAMILY), | |
a4d04587 | 1729 | CFSTR("IPv6")); |
1730 | portnum = lis->address.ipv6.sin6_port; | |
1731 | } | |
1732 | else | |
1733 | # endif /* AF_INET6 */ | |
1734 | { | |
e00b005a | 1735 | CFDictionaryAddValue(listener, |
1736 | CFSTR(LAUNCH_JOBSOCKETKEY_FAMILY), | |
a4d04587 | 1737 | CFSTR("IPv4")); |
1738 | portnum = lis->address.ipv4.sin_port; | |
1739 | } | |
1740 | ||
1741 | if ((service = getservbyport(portnum, NULL))) | |
bd7854cb | 1742 | value = CFStringCreateWithCString(kCFAllocatorDefault, |
1743 | service->s_name, | |
a4d04587 | 1744 | kCFStringEncodingUTF8); |
1745 | else | |
bd7854cb | 1746 | value = CFNumberCreate(kCFAllocatorDefault, |
a4d04587 | 1747 | kCFNumberIntType, &portnum); |
1748 | ||
1749 | if (value) | |
1750 | { | |
e00b005a | 1751 | CFDictionaryAddValue(listener, |
1752 | CFSTR(LAUNCH_JOBSOCKETKEY_SERVICENAME), | |
1753 | value); | |
a4d04587 | 1754 | CFRelease(value); |
1755 | } | |
1756 | ||
1757 | httpAddrString(&lis->address, temp, sizeof(temp)); | |
bd7854cb | 1758 | if ((value = CFStringCreateWithCString(kCFAllocatorDefault, temp, |
a4d04587 | 1759 | kCFStringEncodingUTF8))) |
1760 | { | |
e00b005a | 1761 | CFDictionaryAddValue(listener, |
1762 | CFSTR(LAUNCH_JOBSOCKETKEY_NODENAME), | |
1763 | value); | |
a4d04587 | 1764 | CFRelease(value); |
1765 | } | |
1766 | } | |
1767 | ||
1768 | CFRelease(listener); | |
1769 | } | |
1770 | } | |
1771 | ||
1772 | CFRelease(array); | |
1773 | } | |
1774 | ||
1775 | /* | |
1776 | * Add the BrowseSocket to the sockets dictionary... | |
1777 | */ | |
bd7854cb | 1778 | |
a4d04587 | 1779 | if (Browsing && (BrowseRemoteProtocols & BROWSE_CUPS)) |
1780 | { | |
bd7854cb | 1781 | if ((array = CFArrayCreateMutable(kCFAllocatorDefault, 0, |
a4d04587 | 1782 | &kCFTypeArrayCallBacks)) != NULL) |
1783 | { | |
1784 | CFDictionaryAddValue(sockets, CFSTR("BrowseSockets"), array); | |
1785 | ||
1786 | if ((listener = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, | |
1787 | &kCFTypeDictionaryKeyCallBacks, | |
1788 | &kCFTypeDictionaryValueCallBacks)) != NULL) | |
1789 | { | |
1790 | CFArrayAppendValue(array, listener); | |
1791 | ||
e00b005a | 1792 | CFDictionaryAddValue(listener, CFSTR(LAUNCH_JOBSOCKETKEY_FAMILY), |
1793 | CFSTR("IPv4")); | |
1794 | CFDictionaryAddValue(listener, CFSTR(LAUNCH_JOBSOCKETKEY_TYPE), | |
1795 | CFSTR("dgram")); | |
a4d04587 | 1796 | |
1797 | if ((service = getservbyport(BrowsePort, NULL))) | |
bd7854cb | 1798 | value = CFStringCreateWithCString(kCFAllocatorDefault, |
1799 | service->s_name, | |
a4d04587 | 1800 | kCFStringEncodingUTF8); |
1801 | else | |
bd7854cb | 1802 | value = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, |
a4d04587 | 1803 | &BrowsePort); |
1804 | ||
e00b005a | 1805 | CFDictionaryAddValue(listener, |
1806 | CFSTR(LAUNCH_JOBSOCKETKEY_SERVICENAME), value); | |
a4d04587 | 1807 | CFRelease(value); |
1808 | ||
1809 | CFRelease(listener); | |
1810 | } | |
1811 | ||
1812 | CFRelease(array); | |
1813 | } | |
1814 | } | |
1815 | ||
1816 | CFRelease(sockets); | |
1817 | } | |
1818 | ||
1819 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
bd7854cb | 1820 | "launchd_sync_conf: Updating \"%s\", pid=%d\n", |
a4d04587 | 1821 | LaunchdConf, (int)getpid()); |
bd7854cb | 1822 | |
1823 | if ((fileURL = CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault, | |
1824 | (const unsigned char *)LaunchdConf, | |
a4d04587 | 1825 | strlen(LaunchdConf), false))) |
1826 | { | |
1827 | if ((resourceData = CFPropertyListCreateXMLData(kCFAllocatorDefault, | |
1828 | cupsd_dict))) | |
1829 | { | |
1830 | if (!CFURLWriteDataAndPropertiesToResource(fileURL, resourceData, | |
1831 | NULL, &errorCode)) | |
1832 | { | |
1833 | cupsdLogMessage(CUPSD_LOG_WARN, | |
1834 | "launchd_sync_conf: " | |
1835 | "CFURLWriteDataAndPropertiesToResource(\"%s\") " | |
bd7854cb | 1836 | "failed: %d\n", |
a4d04587 | 1837 | LaunchdConf, (int)errorCode); |
1838 | } | |
1839 | ||
1840 | CFRelease(resourceData); | |
1841 | } | |
1842 | ||
1843 | CFRelease(fileURL); | |
1844 | } | |
1845 | ||
1846 | CFRelease(cupsd_dict); | |
1847 | } | |
1848 | ||
1849 | /* | |
1850 | * Let the caller know we updated the file... | |
1851 | */ | |
1852 | ||
1853 | return (1); | |
1854 | } | |
1855 | #endif /* HAVE_LAUNCHD */ | |
1856 | ||
1857 | ||
ef416fc2 | 1858 | /* |
1859 | * 'parent_handler()' - Catch USR1/CHLD signals... | |
1860 | */ | |
1861 | ||
1862 | static void | |
1863 | parent_handler(int sig) /* I - Signal */ | |
1864 | { | |
1865 | /* | |
1866 | * Store the signal we got from the OS and return... | |
1867 | */ | |
1868 | ||
1869 | parent_signal = sig; | |
1870 | } | |
1871 | ||
1872 | ||
1873 | /* | |
1874 | * 'process_children()' - Process all dead children... | |
1875 | */ | |
1876 | ||
1877 | static void | |
1878 | process_children(void) | |
1879 | { | |
1880 | int status; /* Exit status of child */ | |
1881 | int pid; /* Process ID of child */ | |
1882 | cupsd_job_t *job; /* Current job */ | |
1883 | int i; /* Looping var */ | |
e00b005a | 1884 | char name[1024]; /* Process name */ |
ef416fc2 | 1885 | |
1886 | ||
1887 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "process_children()"); | |
1888 | ||
1889 | /* | |
1890 | * Reset the dead_children flag... | |
1891 | */ | |
1892 | ||
1893 | dead_children = 0; | |
1894 | ||
1895 | /* | |
1896 | * Collect the exit status of some children... | |
1897 | */ | |
1898 | ||
1899 | #ifdef HAVE_WAITPID | |
1900 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) | |
1901 | #elif defined(HAVE_WAIT3) | |
1902 | while ((pid = wait3(&status, WNOHANG, NULL)) > 0) | |
1903 | #else | |
1904 | if ((pid = wait(&status)) > 0) | |
1905 | #endif /* HAVE_WAITPID */ | |
1906 | { | |
ef416fc2 | 1907 | /* |
1908 | * Ignore SIGTERM errors - that comes when a job is cancelled... | |
1909 | */ | |
1910 | ||
e00b005a | 1911 | cupsdFinishProcess(pid, name, sizeof(name)); |
1912 | ||
ef416fc2 | 1913 | if (status == SIGTERM) |
1914 | status = 0; | |
1915 | ||
1916 | if (status) | |
1917 | { | |
1918 | if (WIFEXITED(status)) | |
e00b005a | 1919 | cupsdLogMessage(CUPSD_LOG_ERROR, "PID %d (%s) stopped with status %d!", |
1920 | pid, name, WEXITSTATUS(status)); | |
ef416fc2 | 1921 | else |
e00b005a | 1922 | cupsdLogMessage(CUPSD_LOG_ERROR, "PID %d (%s) crashed on signal %d!", |
1923 | pid, name, WTERMSIG(status)); | |
ef416fc2 | 1924 | |
1925 | if (LogLevel < CUPSD_LOG_DEBUG) | |
1926 | cupsdLogMessage(CUPSD_LOG_INFO, | |
bd7854cb | 1927 | "Hint: Try setting the LogLevel to \"debug\" to find " |
1928 | "out more."); | |
ef416fc2 | 1929 | } |
1930 | else | |
e00b005a | 1931 | cupsdLogMessage(CUPSD_LOG_DEBUG, "PID %d (%s) exited with no errors.", |
1932 | pid, name); | |
ef416fc2 | 1933 | |
1934 | /* | |
1935 | * Delete certificates for CGI processes... | |
1936 | */ | |
1937 | ||
1938 | if (pid) | |
1939 | cupsdDeleteCert(pid); | |
1940 | ||
1941 | /* | |
1942 | * Lookup the PID in the jobs list... | |
1943 | */ | |
1944 | ||
1945 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); | |
1946 | job; | |
1947 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
bd7854cb | 1948 | if (job->state_value == IPP_JOB_PROCESSING) |
ef416fc2 | 1949 | { |
1950 | for (i = 0; job->filters[i]; i ++) | |
1951 | if (job->filters[i] == pid) | |
1952 | break; | |
1953 | ||
1954 | if (job->filters[i] || job->backend == pid) | |
1955 | { | |
1956 | /* | |
1957 | * OK, this process has gone away; what's left? | |
1958 | */ | |
1959 | ||
1960 | if (job->filters[i]) | |
1961 | job->filters[i] = -pid; | |
1962 | else | |
1963 | job->backend = -pid; | |
1964 | ||
1965 | if (status && job->status >= 0) | |
1966 | { | |
1967 | /* | |
1968 | * An error occurred; save the exit status so we know to stop | |
1969 | * the printer or cancel the job when all of the filters finish... | |
1970 | * | |
1971 | * A negative status indicates that the backend failed and the | |
1972 | * printer needs to be stopped. | |
1973 | */ | |
1974 | ||
1975 | if (job->filters[i]) | |
1976 | job->status = status; /* Filter failed */ | |
1977 | else | |
1978 | job->status = -status; /* Backend failed */ | |
e00b005a | 1979 | |
1980 | if (job->printer && !(job->printer->type & CUPS_PRINTER_FAX)) | |
1981 | { | |
1982 | snprintf(job->printer->state_message, | |
1983 | sizeof(job->printer->state_message), "%s failed", name); | |
1984 | cupsdAddPrinterHistory(job->printer); | |
1985 | } | |
ef416fc2 | 1986 | } |
1987 | ||
1988 | /* | |
1989 | * If this is not the last file in a job, see if all of the | |
1990 | * filters are done, and if so move to the next file. | |
1991 | */ | |
1992 | ||
1993 | if (job->current_file < job->num_files) | |
1994 | { | |
1995 | for (i = 0; job->filters[i] < 0; i ++); | |
1996 | ||
1997 | if (!job->filters[i]) | |
1998 | { | |
1999 | /* | |
2000 | * Process the next file... | |
2001 | */ | |
2002 | ||
2003 | cupsdFinishJob(job); | |
2004 | } | |
2005 | } | |
2006 | break; | |
2007 | } | |
2008 | } | |
2009 | } | |
2010 | } | |
2011 | ||
2012 | ||
2013 | /* | |
2014 | * 'sigchld_handler()' - Handle 'child' signals from old processes. | |
2015 | */ | |
2016 | ||
2017 | static void | |
2018 | sigchld_handler(int sig) /* I - Signal number */ | |
2019 | { | |
2020 | (void)sig; | |
2021 | ||
2022 | /* | |
2023 | * Flag that we have dead children... | |
2024 | */ | |
2025 | ||
2026 | dead_children = 1; | |
2027 | ||
2028 | /* | |
2029 | * Reset the signal handler as needed... | |
2030 | */ | |
2031 | ||
2032 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
2033 | signal(SIGCLD, sigchld_handler); | |
2034 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
2035 | } | |
2036 | ||
2037 | ||
2038 | /* | |
2039 | * 'sighup_handler()' - Handle 'hangup' signals to reconfigure the scheduler. | |
2040 | */ | |
2041 | ||
2042 | static void | |
2043 | sighup_handler(int sig) /* I - Signal number */ | |
2044 | { | |
2045 | (void)sig; | |
2046 | ||
2047 | NeedReload = RELOAD_ALL; | |
2048 | ReloadTime = time(NULL); | |
2049 | ||
2050 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
2051 | signal(SIGHUP, sighup_handler); | |
2052 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
2053 | } | |
2054 | ||
2055 | ||
2056 | /* | |
2057 | * 'sigterm_handler()' - Handle 'terminate' signals that stop the scheduler. | |
2058 | */ | |
2059 | ||
2060 | static void | |
2061 | sigterm_handler(int sig) /* I - Signal */ | |
2062 | { | |
2063 | (void)sig; /* remove compiler warnings... */ | |
2064 | ||
2065 | /* | |
2066 | * Flag that we should stop and return... | |
2067 | */ | |
2068 | ||
2069 | stop_scheduler = 1; | |
2070 | } | |
2071 | ||
2072 | ||
2073 | /* | |
2074 | * 'select_timeout()' - Calculate the select timeout value. | |
2075 | * | |
2076 | */ | |
2077 | ||
2078 | static long /* O - Number of seconds */ | |
bd7854cb | 2079 | select_timeout(int fds) /* I - Number of descriptors returned */ |
ef416fc2 | 2080 | { |
ef416fc2 | 2081 | long timeout; /* Timeout for select */ |
2082 | time_t now; /* Current time */ | |
2083 | cupsd_client_t *con; /* Client information */ | |
2084 | cupsd_printer_t *p; /* Printer information */ | |
2085 | cupsd_job_t *job; /* Job information */ | |
2086 | cupsd_subscription_t *sub; /* Subscription information */ | |
2087 | const char *why; /* Debugging aid */ | |
2088 | ||
2089 | ||
2090 | /* | |
2091 | * Check to see if any of the clients have pending data to be | |
2092 | * processed; if so, the timeout should be 0... | |
2093 | */ | |
2094 | ||
bd7854cb | 2095 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
2096 | con; | |
2097 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 2098 | if (con->http.used > 0) |
2099 | return (0); | |
2100 | ||
2101 | /* | |
2102 | * If select has been active in the last second (fds != 0) or we have | |
2103 | * many resources in use then don't bother trying to optimize the | |
2104 | * timeout, just make it 1 second. | |
2105 | */ | |
2106 | ||
bd7854cb | 2107 | if (fds || cupsArrayCount(Clients) > 50) |
ef416fc2 | 2108 | return (1); |
2109 | ||
fa73b229 | 2110 | /* |
2111 | * If we had a recent event notification, timeout in 1 second... | |
2112 | */ | |
2113 | ||
2114 | if (LastEvent) | |
2115 | return (1); | |
2116 | ||
ef416fc2 | 2117 | /* |
2118 | * Otherwise, check all of the possible events that we need to wake for... | |
2119 | */ | |
2120 | ||
2121 | now = time(NULL); | |
2122 | timeout = now + 86400; /* 86400 == 1 day */ | |
2123 | why = "do nothing"; | |
2124 | ||
2125 | /* | |
2126 | * Check the activity and close old clients... | |
2127 | */ | |
2128 | ||
bd7854cb | 2129 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
2130 | con; | |
2131 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 2132 | if ((con->http.activity + Timeout) < timeout) |
2133 | { | |
2134 | timeout = con->http.activity + Timeout; | |
2135 | why = "timeout a client connection"; | |
2136 | } | |
2137 | ||
2138 | /* | |
2139 | * Update the browse list as needed... | |
2140 | */ | |
2141 | ||
2142 | if (Browsing && BrowseLocalProtocols) | |
2143 | { | |
2144 | #ifdef HAVE_LIBSLP | |
2145 | if ((BrowseLocalProtocols & BROWSE_SLP) && (BrowseSLPRefresh < timeout)) | |
2146 | { | |
2147 | timeout = BrowseSLPRefresh; | |
2148 | why = "update SLP browsing"; | |
2149 | } | |
2150 | #endif /* HAVE_LIBSLP */ | |
2151 | ||
b423cd4c | 2152 | #ifdef HAVE_LDAP |
2153 | if ((BrowseLocalProtocols & BROWSE_LDAP) && (BrowseLDAPRefresh < timeout)) | |
2154 | { | |
2155 | timeout = BrowseLDAPRefresh; | |
2156 | why = "update LDAP browsing"; | |
2157 | } | |
2158 | #endif /* HAVE_LDAP */ | |
2159 | ||
ef416fc2 | 2160 | if (BrowseLocalProtocols & BROWSE_CUPS) |
2161 | { | |
2162 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); | |
2163 | p; | |
2164 | p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
2165 | { | |
2166 | if (p->type & CUPS_PRINTER_REMOTE) | |
2167 | { | |
2168 | if ((p->browse_time + BrowseTimeout) < timeout) | |
2169 | { | |
2170 | timeout = p->browse_time + BrowseTimeout; | |
2171 | why = "browse timeout a printer"; | |
2172 | } | |
2173 | } | |
2174 | else if (!(p->type & CUPS_PRINTER_IMPLICIT)) | |
2175 | { | |
2176 | if (BrowseInterval && (p->browse_time + BrowseInterval) < timeout) | |
2177 | { | |
2178 | timeout = p->browse_time + BrowseInterval; | |
2179 | why = "send browse update"; | |
2180 | } | |
2181 | } | |
2182 | } | |
2183 | } | |
2184 | } | |
2185 | ||
2186 | /* | |
2187 | * Check for any active jobs... | |
2188 | */ | |
2189 | ||
2190 | if (timeout > (now + 10) && ActiveJobs) | |
2191 | { | |
2192 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); | |
2193 | job; | |
2194 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
bd7854cb | 2195 | if (job->state_value <= IPP_JOB_PROCESSING) |
ef416fc2 | 2196 | { |
2197 | timeout = now + 10; | |
2198 | why = "process active jobs"; | |
2199 | break; | |
2200 | } | |
2201 | } | |
2202 | ||
2203 | #ifdef HAVE_MALLINFO | |
2204 | /* | |
2205 | * Log memory usage every minute... | |
2206 | */ | |
2207 | ||
2208 | if (LogLevel >= CUPSD_LOG_DEBUG && (mallinfo_time + 60) < timeout) | |
2209 | { | |
2210 | timeout = mallinfo_time + 60; | |
2211 | why = "display memory usage"; | |
2212 | } | |
2213 | #endif /* HAVE_MALLINFO */ | |
2214 | ||
ef416fc2 | 2215 | /* |
2216 | * Expire subscriptions as needed... | |
2217 | */ | |
2218 | ||
2219 | for (sub = (cupsd_subscription_t *)cupsArrayFirst(Subscriptions); | |
2220 | sub; | |
2221 | sub = (cupsd_subscription_t *)cupsArrayNext(Subscriptions)) | |
bd7854cb | 2222 | if (!sub->job && sub->expire && sub->expire < timeout) |
ef416fc2 | 2223 | { |
2224 | timeout = sub->expire; | |
2225 | why = "expire subscription"; | |
2226 | } | |
2227 | ||
2228 | /* | |
2229 | * Adjust from absolute to relative time. If p->browse_time above | |
2230 | * was 0 then we can end up with a negative value here, so check. | |
2231 | * We add 1 second to the timeout since events occur after the | |
2232 | * timeout expires, and limit the timeout to 86400 seconds (1 day) | |
2233 | * to avoid select() timeout limits present on some operating | |
2234 | * systems... | |
2235 | */ | |
2236 | ||
2237 | timeout = timeout - now + 1; | |
2238 | ||
2239 | if (timeout < 1) | |
2240 | timeout = 1; | |
2241 | else if (timeout > 86400) | |
2242 | timeout = 86400; | |
2243 | ||
2244 | /* | |
2245 | * Log and return the timeout value... | |
2246 | */ | |
2247 | ||
2248 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout: %ld seconds to %s", | |
2249 | timeout, why); | |
2250 | ||
2251 | return (timeout); | |
2252 | } | |
2253 | ||
2254 | ||
2255 | /* | |
2256 | * 'usage()' - Show scheduler usage. | |
2257 | */ | |
2258 | ||
2259 | static void | |
a4d04587 | 2260 | usage(int status) /* O - Exit status */ |
ef416fc2 | 2261 | { |
a4d04587 | 2262 | _cupsLangPuts(status ? stderr : stdout, |
2263 | _("Usage: cupsd [-c config-file] [-f] [-F] [-h] [-l]\n" | |
2264 | "\n" | |
2265 | "-c config-file Load alternate configuration file\n" | |
2266 | "-f Run in the foreground\n" | |
2267 | "-F Run in the foreground but detach\n" | |
2268 | "-h Show this usage message\n" | |
2269 | "-l Run cupsd from launchd(8)\n")); | |
2270 | exit(status); | |
ef416fc2 | 2271 | } |
2272 | ||
2273 | ||
2274 | /* | |
e1d6a774 | 2275 | * End of "$Id: main.c 5305 2006-03-18 03:05:12Z mike $". |
ef416fc2 | 2276 | */ |