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ef416fc2 | 1 | /* |
b19ccc9e | 2 | * "$Id: main.c 7925 2008-09-10 17:47:26Z mike $" |
ef416fc2 | 3 | * |
6d2f911b | 4 | * Main loop for the CUPS scheduler. |
ef416fc2 | 5 | * |
e60ec91f | 6 | * Copyright 2007-2011 by Apple Inc. |
f7deaa1a | 7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 8 | * |
9 | * These coded instructions, statements, and computer programs are the | |
bc44d920 | 10 | * property of Apple Inc. and are protected by Federal copyright |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
ef416fc2 | 12 | * "LICENSE" which should have been included with this file. If this |
bc44d920 | 13 | * file is missing or damaged, see the license at "http://www.cups.org/". |
ef416fc2 | 14 | * |
15 | * Contents: | |
16 | * | |
10d09e33 MS |
17 | * main() - Main entry for the CUPS scheduler. |
18 | * cupsdAddString() - Copy and add a string to an array. | |
19 | * cupsdCheckProcess() - Tell the main loop to check for dead children. | |
20 | * cupsdClearString() - Clear a string. | |
21 | * cupsdClosePipe() - Close a pipe as necessary. | |
22 | * cupsdFreeStrings() - Free an array of strings. | |
23 | * cupsdHoldSignals() - Hold child and termination signals. | |
82f97232 | 24 | * cupsdMakeUUID() - Make a UUID URI conforming to RFC 4122. |
10d09e33 MS |
25 | * cupsdOpenPipe() - Create a pipe which is closed on exec. |
26 | * cupsdReleaseSignals() - Release signals for delivery. | |
27 | * cupsdSetString() - Set a string value. | |
28 | * cupsdSetStringf() - Set a formatted string value. | |
29 | * cupsd_clean_files() - Clean out old files. | |
30 | * launchd_checkin() - Check-in with launchd and collect the listening | |
31 | * fds. | |
32 | * launchd_checkout() - Update the launchd KeepAlive file as needed. | |
33 | * parent_handler() - Catch USR1/CHLD signals... | |
34 | * process_children() - Process all dead children... | |
35 | * select_timeout() - Calculate the select timeout value. | |
36 | * sigchld_handler() - Handle 'child' signals from old processes. | |
37 | * sighup_handler() - Handle 'hangup' signals to reconfigure the | |
38 | * scheduler. | |
39 | * sigterm_handler() - Handle 'terminate' signals that stop the scheduler. | |
40 | * usage() - Show scheduler usage. | |
ef416fc2 | 41 | */ |
42 | ||
43 | /* | |
44 | * Include necessary headers... | |
45 | */ | |
46 | ||
47 | #define _MAIN_C_ | |
48 | #include "cupsd.h" | |
49 | #include <sys/resource.h> | |
50 | #include <syslog.h> | |
51 | #include <grp.h> | |
cc0d019f | 52 | #include <cups/dir.h> |
ba55dc12 | 53 | #include <fnmatch.h> |
ef416fc2 | 54 | |
a4d04587 | 55 | #ifdef HAVE_LAUNCH_H |
56 | # include <launch.h> | |
57 | # include <libgen.h> | |
ba55dc12 | 58 | # define CUPS_KEEPALIVE CUPS_CACHEDIR "/org.cups.cupsd" |
f7deaa1a | 59 | /* Name of the launchd KeepAlive file */ |
60 | # ifndef LAUNCH_JOBKEY_KEEPALIVE | |
61 | # define LAUNCH_JOBKEY_KEEPALIVE "KeepAlive" | |
62 | # endif /* !LAUNCH_JOBKEY_KEEPALIVE */ | |
63 | # ifndef LAUNCH_JOBKEY_PATHSTATE | |
64 | # define LAUNCH_JOBKEY_PATHSTATE "PathState" | |
65 | # endif /* !LAUNCH_JOBKEY_PATHSTATE */ | |
66 | # ifndef LAUNCH_JOBKEY_SERVICEIPC | |
67 | # define LAUNCH_JOBKEY_SERVICEIPC "ServiceIPC" | |
68 | # endif /* !LAUNCH_JOBKEY_SERVICEIPC */ | |
a4d04587 | 69 | #endif /* HAVE_LAUNCH_H */ |
70 | ||
ef416fc2 | 71 | #if defined(HAVE_MALLOC_H) && defined(HAVE_MALLINFO) |
72 | # include <malloc.h> | |
73 | #endif /* HAVE_MALLOC_H && HAVE_MALLINFO */ | |
fa73b229 | 74 | #ifdef HAVE_NOTIFY_H |
75 | # include <notify.h> | |
76 | #endif /* HAVE_NOTIFY_H */ | |
ef416fc2 | 77 | |
78 | ||
79 | /* | |
80 | * Local functions... | |
81 | */ | |
82 | ||
ba55dc12 MS |
83 | static void cupsd_clean_files(const char *path, |
84 | const char *pattern); | |
a4d04587 | 85 | #ifdef HAVE_LAUNCHD |
411affcf | 86 | static void launchd_checkin(void); |
f7deaa1a | 87 | static void launchd_checkout(void); |
a4d04587 | 88 | #endif /* HAVE_LAUNCHD */ |
411affcf | 89 | static void parent_handler(int sig); |
90 | static void process_children(void); | |
91 | static void sigchld_handler(int sig); | |
92 | static void sighup_handler(int sig); | |
93 | static void sigterm_handler(int sig); | |
94 | static long select_timeout(int fds); | |
95 | static void usage(int status); | |
ef416fc2 | 96 | |
97 | ||
98 | /* | |
99 | * Local globals... | |
100 | */ | |
101 | ||
411affcf | 102 | static int parent_signal = 0; |
103 | /* Set to signal number from child */ | |
104 | static int holdcount = 0; /* Number of times "hold" was called */ | |
ef416fc2 | 105 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
411affcf | 106 | static sigset_t holdmask; /* Old POSIX signal mask */ |
ef416fc2 | 107 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ |
411affcf | 108 | static int dead_children = 0; |
109 | /* Dead children? */ | |
110 | static int stop_scheduler = 0; | |
111 | /* Should the scheduler stop? */ | |
112 | ||
ef416fc2 | 113 | |
114 | /* | |
115 | * 'main()' - Main entry for the CUPS scheduler. | |
116 | */ | |
117 | ||
118 | int /* O - Exit status */ | |
bd7854cb | 119 | main(int argc, /* I - Number of command-line args */ |
ef416fc2 | 120 | char *argv[]) /* I - Command-line arguments */ |
121 | { | |
122 | int i; /* Looping var */ | |
123 | char *opt; /* Option character */ | |
124 | int fg; /* Run in the foreground */ | |
bd7854cb | 125 | int fds; /* Number of ready descriptors */ |
ef416fc2 | 126 | cupsd_client_t *con; /* Current client */ |
127 | cupsd_job_t *job; /* Current job */ | |
128 | cupsd_listener_t *lis; /* Current listener */ | |
129 | time_t current_time, /* Current time */ | |
a4d04587 | 130 | activity, /* Client activity timer */ |
ef416fc2 | 131 | browse_time, /* Next browse send time */ |
132 | senddoc_time, /* Send-Document time */ | |
411affcf | 133 | expire_time, /* Subscription expire time */ |
50fe7201 | 134 | report_time, /* Malloc/client/job report time */ |
5a662dc0 | 135 | event_time; /* Last event notification time */ |
f7deaa1a | 136 | long timeout; /* Timeout for cupsdDoSelect() */ |
ef416fc2 | 137 | struct rlimit limit; /* Runtime limit */ |
138 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
139 | struct sigaction action; /* Actions for POSIX signals */ | |
140 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
141 | #ifdef __sgi | |
142 | cups_file_t *fp; /* Fake lpsched lock file */ | |
143 | struct stat statbuf; /* Needed for checking lpsched FIFO */ | |
144 | #endif /* __sgi */ | |
68b10830 MS |
145 | int run_as_child = 0; |
146 | /* Needed for background fork/exec */ | |
a41f09e2 | 147 | #ifdef __APPLE__ |
68b10830 | 148 | int use_sysman = !getuid(); |
d7871c8c | 149 | /* Use system management functions? */ |
a4924f6c MS |
150 | #else |
151 | time_t netif_time = 0; /* Time since last network update */ | |
a41f09e2 | 152 | #endif /* __APPLE__ */ |
a4d04587 | 153 | #if HAVE_LAUNCHD |
4400e98d | 154 | int launchd_idle_exit; |
a4d04587 | 155 | /* Idle exit on select timeout? */ |
156 | #endif /* HAVE_LAUNCHD */ | |
ef416fc2 | 157 | |
158 | ||
db1f069b MS |
159 | #ifdef HAVE_GETEUID |
160 | /* | |
161 | * Check for setuid invocation, which we do not support! | |
162 | */ | |
163 | ||
164 | if (getuid() != geteuid()) | |
165 | { | |
4d301e69 | 166 | fputs("cupsd: Cannot run as a setuid program\n", stderr); |
db1f069b MS |
167 | return (1); |
168 | } | |
169 | #endif /* HAVE_GETEUID */ | |
170 | ||
ef416fc2 | 171 | /* |
172 | * Check for command-line arguments... | |
173 | */ | |
174 | ||
4400e98d | 175 | fg = 0; |
ef416fc2 | 176 | |
09a101d6 | 177 | #ifdef HAVE_LAUNCHD |
178 | if (getenv("CUPSD_LAUNCHD")) | |
179 | { | |
180 | Launchd = 1; | |
181 | fg = 1; | |
182 | } | |
183 | #endif /* HAVE_LAUNCHD */ | |
184 | ||
ef416fc2 | 185 | for (i = 1; i < argc; i ++) |
186 | if (argv[i][0] == '-') | |
187 | for (opt = argv[i] + 1; *opt != '\0'; opt ++) | |
188 | switch (*opt) | |
189 | { | |
a41f09e2 MS |
190 | case 'C' : /* Run as child with config file */ |
191 | run_as_child = 1; | |
192 | fg = -1; | |
a41f09e2 | 193 | |
ef416fc2 | 194 | case 'c' : /* Configuration file */ |
195 | i ++; | |
196 | if (i >= argc) | |
a4d04587 | 197 | { |
198 | _cupsLangPuts(stderr, _("cupsd: Expected config filename " | |
0837b7e8 | 199 | "after \"-c\" option.")); |
a4d04587 | 200 | usage(1); |
201 | } | |
ef416fc2 | 202 | |
203 | if (argv[i][0] == '/') | |
204 | { | |
205 | /* | |
206 | * Absolute directory... | |
207 | */ | |
208 | ||
209 | cupsdSetString(&ConfigurationFile, argv[i]); | |
210 | } | |
211 | else | |
212 | { | |
213 | /* | |
214 | * Relative directory... | |
215 | */ | |
216 | ||
09ec0018 | 217 | char *current; /* Current directory */ |
ef416fc2 | 218 | |
219 | ||
09ec0018 | 220 | /* |
221 | * Allocate a buffer for the current working directory to | |
222 | * reduce run-time stack usage; this approximates the | |
223 | * behavior of some implementations of getcwd() when they | |
224 | * are passed a NULL pointer. | |
225 | */ | |
226 | ||
91c84a35 MS |
227 | if ((current = malloc(1024)) == NULL) |
228 | { | |
229 | _cupsLangPuts(stderr, | |
0837b7e8 | 230 | _("cupsd: Unable to get current directory.")); |
91c84a35 MS |
231 | return (1); |
232 | } | |
233 | ||
234 | if (!getcwd(current, 1024)) | |
235 | { | |
236 | _cupsLangPuts(stderr, | |
0837b7e8 | 237 | _("cupsd: Unable to get current directory.")); |
91c84a35 MS |
238 | free(current); |
239 | return (1); | |
240 | } | |
09ec0018 | 241 | |
ef416fc2 | 242 | cupsdSetStringf(&ConfigurationFile, "%s/%s", current, argv[i]); |
09ec0018 | 243 | free(current); |
ef416fc2 | 244 | } |
245 | break; | |
246 | ||
247 | case 'f' : /* Run in foreground... */ | |
248 | fg = 1; | |
249 | break; | |
250 | ||
bd7854cb | 251 | case 'F' : /* Run in foreground, but disconnect from terminal... */ |
ef416fc2 | 252 | fg = -1; |
253 | break; | |
254 | ||
a4d04587 | 255 | case 'h' : /* Show usage/help */ |
256 | usage(0); | |
257 | break; | |
258 | ||
259 | case 'l' : /* Started by launchd... */ | |
260 | #ifdef HAVE_LAUNCHD | |
4400e98d | 261 | Launchd = 1; |
a4d04587 | 262 | fg = 1; |
263 | #else | |
264 | _cupsLangPuts(stderr, _("cupsd: launchd(8) support not compiled " | |
0837b7e8 | 265 | "in, running in normal mode.")); |
a4d04587 | 266 | fg = 0; |
267 | #endif /* HAVE_LAUNCHD */ | |
268 | break; | |
269 | ||
a74454a7 | 270 | case 'p' : /* Stop immediately for profiling */ |
5a662dc0 MS |
271 | fputs("cupsd: -p (startup profiling) is for internal testing " |
272 | "use only!\n", stderr); | |
a74454a7 | 273 | stop_scheduler = 1; |
274 | fg = 1; | |
275 | break; | |
276 | ||
1340db2d | 277 | case 'P' : /* Disable security profiles */ |
5a662dc0 MS |
278 | fputs("cupsd: -P (disable security profiles) is for internal " |
279 | "testing use only!\n", stderr); | |
1340db2d MS |
280 | UseProfiles = 0; |
281 | break; | |
282 | ||
68b10830 MS |
283 | #ifdef __APPLE__ |
284 | case 'S' : /* Disable system management functions */ | |
5a662dc0 MS |
285 | fputs("cupsd: -S (disable system management) for internal " |
286 | "testing use only!\n", stderr); | |
68b10830 MS |
287 | use_sysman = 0; |
288 | break; | |
289 | #endif /* __APPLE__ */ | |
290 | ||
2e4ff8af MS |
291 | case 't' : /* Test the cupsd.conf file... */ |
292 | TestConfigFile = 1; | |
293 | fg = 1; | |
294 | break; | |
295 | ||
ef416fc2 | 296 | default : /* Unknown option */ |
a4d04587 | 297 | _cupsLangPrintf(stderr, _("cupsd: Unknown option \"%c\" - " |
0837b7e8 | 298 | "aborting."), *opt); |
a4d04587 | 299 | usage(1); |
ef416fc2 | 300 | break; |
301 | } | |
302 | else | |
303 | { | |
0837b7e8 | 304 | _cupsLangPrintf(stderr, _("cupsd: Unknown argument \"%s\" - aborting."), |
a4d04587 | 305 | argv[i]); |
306 | usage(1); | |
ef416fc2 | 307 | } |
308 | ||
309 | if (!ConfigurationFile) | |
310 | cupsdSetString(&ConfigurationFile, CUPS_SERVERROOT "/cupsd.conf"); | |
311 | ||
312 | /* | |
313 | * If the user hasn't specified "-f", run in the background... | |
314 | */ | |
315 | ||
316 | if (!fg) | |
317 | { | |
318 | /* | |
319 | * Setup signal handlers for the parent... | |
320 | */ | |
321 | ||
322 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
323 | sigset(SIGUSR1, parent_handler); | |
324 | sigset(SIGCHLD, parent_handler); | |
325 | ||
326 | sigset(SIGHUP, SIG_IGN); | |
327 | #elif defined(HAVE_SIGACTION) | |
328 | memset(&action, 0, sizeof(action)); | |
329 | sigemptyset(&action.sa_mask); | |
330 | sigaddset(&action.sa_mask, SIGUSR1); | |
331 | action.sa_handler = parent_handler; | |
332 | sigaction(SIGUSR1, &action, NULL); | |
333 | sigaction(SIGCHLD, &action, NULL); | |
334 | ||
335 | sigemptyset(&action.sa_mask); | |
336 | action.sa_handler = SIG_IGN; | |
337 | sigaction(SIGHUP, &action, NULL); | |
338 | #else | |
339 | signal(SIGUSR1, parent_handler); | |
340 | signal(SIGCLD, parent_handler); | |
341 | ||
342 | signal(SIGHUP, SIG_IGN); | |
343 | #endif /* HAVE_SIGSET */ | |
344 | ||
345 | if (fork() > 0) | |
346 | { | |
347 | /* | |
348 | * OK, wait for the child to startup and send us SIGUSR1 or to crash | |
349 | * and the OS send us SIGCHLD... We also need to ignore SIGHUP which | |
350 | * might be sent by the init script to restart the scheduler... | |
351 | */ | |
352 | ||
353 | for (; parent_signal == 0;) | |
354 | sleep(1); | |
355 | ||
356 | if (parent_signal == SIGUSR1) | |
357 | return (0); | |
358 | ||
359 | if (wait(&i) < 0) | |
360 | { | |
361 | perror("cupsd"); | |
362 | return (1); | |
363 | } | |
364 | else if (WIFEXITED(i)) | |
365 | { | |
4d301e69 | 366 | fprintf(stderr, "cupsd: Child exited with status %d\n", |
bd7854cb | 367 | WEXITSTATUS(i)); |
ef416fc2 | 368 | return (2); |
369 | } | |
370 | else | |
371 | { | |
4d301e69 | 372 | fprintf(stderr, "cupsd: Child exited on signal %d\n", WTERMSIG(i)); |
ef416fc2 | 373 | return (3); |
374 | } | |
375 | } | |
a41f09e2 | 376 | |
68b10830 MS |
377 | #ifdef __OpenBSD__ |
378 | /* | |
379 | * Call _thread_sys_closefrom() so the child process doesn't reset the | |
380 | * parent's file descriptors to be blocking. This is a workaround for a | |
381 | * limitation of userland libpthread on OpenBSD. | |
382 | */ | |
ef55b745 | 383 | |
68b10830 MS |
384 | _thread_sys_closefrom(0); |
385 | #endif /* __OpenBSD__ */ | |
386 | ||
a41f09e2 | 387 | /* |
68b10830 MS |
388 | * Since CoreFoundation and DBUS both create fork-unsafe data on execution of |
389 | * a program, and since this kind of really unfriendly behavior seems to be | |
390 | * more common these days in system libraries, we need to re-execute the | |
391 | * background cupsd with the "-C" option to avoid problems. Unfortunately, | |
392 | * we also have to assume that argv[0] contains the name of the cupsd | |
393 | * executable - there is no portable way to get the real pathname... | |
a41f09e2 MS |
394 | */ |
395 | ||
396 | execlp(argv[0], argv[0], "-C", ConfigurationFile, (char *)0); | |
397 | exit(errno); | |
ef416fc2 | 398 | } |
399 | ||
400 | if (fg < 1) | |
401 | { | |
402 | /* | |
403 | * Make sure we aren't tying up any filesystems... | |
404 | */ | |
405 | ||
406 | chdir("/"); | |
407 | ||
408 | #ifndef DEBUG | |
409 | /* | |
410 | * Disable core dumps... | |
411 | */ | |
412 | ||
413 | getrlimit(RLIMIT_CORE, &limit); | |
414 | limit.rlim_cur = 0; | |
415 | setrlimit(RLIMIT_CORE, &limit); | |
416 | ||
417 | /* | |
418 | * Disconnect from the controlling terminal... | |
419 | */ | |
420 | ||
421 | setsid(); | |
422 | ||
423 | /* | |
424 | * Close all open files... | |
425 | */ | |
426 | ||
427 | getrlimit(RLIMIT_NOFILE, &limit); | |
428 | ||
b94498cf | 429 | for (i = 0; i < limit.rlim_cur && i < 1024; i ++) |
ef416fc2 | 430 | close(i); |
a4924f6c MS |
431 | |
432 | /* | |
433 | * Redirect stdin/out/err to /dev/null... | |
434 | */ | |
435 | ||
68b10830 MS |
436 | if ((i = open("/dev/null", O_RDONLY)) != 0) |
437 | { | |
438 | dup2(i, 0); | |
439 | close(i); | |
440 | } | |
441 | ||
442 | if ((i = open("/dev/null", O_WRONLY)) != 1) | |
443 | { | |
444 | dup2(i, 1); | |
445 | close(i); | |
446 | } | |
447 | ||
448 | if ((i = open("/dev/null", O_WRONLY)) != 2) | |
449 | { | |
450 | dup2(i, 2); | |
451 | close(i); | |
452 | } | |
ef416fc2 | 453 | #endif /* DEBUG */ |
454 | } | |
455 | ||
456 | /* | |
457 | * Set the timezone info... | |
458 | */ | |
459 | ||
460 | tzset(); | |
461 | ||
462 | #ifdef LC_TIME | |
463 | setlocale(LC_TIME, ""); | |
464 | #endif /* LC_TIME */ | |
465 | ||
466 | /* | |
467 | * Set the maximum number of files... | |
468 | */ | |
469 | ||
470 | getrlimit(RLIMIT_NOFILE, &limit); | |
471 | ||
f7deaa1a | 472 | #if !defined(HAVE_POLL) && !defined(HAVE_EPOLL) && !defined(HAVE_KQUEUE) |
f7faf1f5 | 473 | if (limit.rlim_max > FD_SETSIZE) |
474 | MaxFDs = FD_SETSIZE; | |
ef416fc2 | 475 | else |
f7deaa1a | 476 | #endif /* !HAVE_POLL && !HAVE_EPOLL && !HAVE_KQUEUE */ |
477 | #ifdef RLIM_INFINITY | |
478 | if (limit.rlim_max == RLIM_INFINITY) | |
479 | MaxFDs = 16384; | |
480 | else | |
481 | #endif /* RLIM_INFINITY */ | |
ef416fc2 | 482 | MaxFDs = limit.rlim_max; |
483 | ||
484 | limit.rlim_cur = MaxFDs; | |
485 | ||
486 | setrlimit(RLIMIT_NOFILE, &limit); | |
487 | ||
f7deaa1a | 488 | cupsdStartSelect(); |
ef416fc2 | 489 | |
490 | /* | |
491 | * Read configuration... | |
492 | */ | |
493 | ||
494 | if (!cupsdReadConfiguration()) | |
495 | { | |
2e4ff8af MS |
496 | if (TestConfigFile) |
497 | printf("%s contains errors\n", ConfigurationFile); | |
498 | else | |
499 | syslog(LOG_LPR, "Unable to read configuration file \'%s\' - exiting!", | |
500 | ConfigurationFile); | |
ef416fc2 | 501 | return (1); |
502 | } | |
2e4ff8af MS |
503 | else if (TestConfigFile) |
504 | { | |
505 | printf("%s is OK\n", ConfigurationFile); | |
506 | return (0); | |
507 | } | |
ef416fc2 | 508 | |
ba55dc12 MS |
509 | /* |
510 | * Clean out old temp files and printer cache data. | |
511 | */ | |
cc0d019f | 512 | |
ba55dc12 MS |
513 | if (!strncmp(TempDir, RequestRoot, strlen(RequestRoot))) |
514 | cupsd_clean_files(TempDir, NULL); | |
cc0d019f | 515 | |
ba55dc12 | 516 | cupsd_clean_files(CacheDir, "*.ipp"); |
cc0d019f | 517 | |
a4d04587 | 518 | #if HAVE_LAUNCHD |
4400e98d | 519 | if (Launchd) |
a4d04587 | 520 | { |
521 | /* | |
b94498cf | 522 | * If we were started by launchd get the listen sockets file descriptors... |
f7deaa1a | 523 | */ |
a4d04587 | 524 | |
525 | launchd_checkin(); | |
e4572d57 | 526 | launchd_checkout(); |
a4d04587 | 527 | } |
528 | #endif /* HAVE_LAUNCHD */ | |
529 | ||
530 | /* | |
531 | * Startup the server... | |
532 | */ | |
533 | ||
6d2f911b MS |
534 | httpInitialize(); |
535 | ||
a4d04587 | 536 | cupsdStartServer(); |
537 | ||
ef416fc2 | 538 | /* |
539 | * Catch hangup and child signals and ignore broken pipes... | |
540 | */ | |
541 | ||
542 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
e1d6a774 | 543 | sigset(SIGCHLD, sigchld_handler); |
4744bd90 | 544 | sigset(SIGHUP, sighup_handler); |
ef416fc2 | 545 | sigset(SIGPIPE, SIG_IGN); |
546 | sigset(SIGTERM, sigterm_handler); | |
547 | #elif defined(HAVE_SIGACTION) | |
548 | memset(&action, 0, sizeof(action)); | |
549 | ||
e1d6a774 | 550 | sigemptyset(&action.sa_mask); |
551 | sigaddset(&action.sa_mask, SIGTERM); | |
552 | sigaddset(&action.sa_mask, SIGCHLD); | |
553 | action.sa_handler = sigchld_handler; | |
554 | sigaction(SIGCHLD, &action, NULL); | |
555 | ||
ef416fc2 | 556 | sigemptyset(&action.sa_mask); |
557 | sigaddset(&action.sa_mask, SIGHUP); | |
4744bd90 | 558 | action.sa_handler = sighup_handler; |
ef416fc2 | 559 | sigaction(SIGHUP, &action, NULL); |
560 | ||
561 | sigemptyset(&action.sa_mask); | |
562 | action.sa_handler = SIG_IGN; | |
563 | sigaction(SIGPIPE, &action, NULL); | |
564 | ||
565 | sigemptyset(&action.sa_mask); | |
566 | sigaddset(&action.sa_mask, SIGTERM); | |
567 | sigaddset(&action.sa_mask, SIGCHLD); | |
568 | action.sa_handler = sigterm_handler; | |
569 | sigaction(SIGTERM, &action, NULL); | |
570 | #else | |
e1d6a774 | 571 | signal(SIGCLD, sigchld_handler); /* No, SIGCLD isn't a typo... */ |
4744bd90 | 572 | signal(SIGHUP, sighup_handler); |
ef416fc2 | 573 | signal(SIGPIPE, SIG_IGN); |
574 | signal(SIGTERM, sigterm_handler); | |
575 | #endif /* HAVE_SIGSET */ | |
576 | ||
577 | #ifdef __sgi | |
578 | /* | |
579 | * Try to create a fake lpsched lock file if one is not already there. | |
580 | * Some Adobe applications need it under IRIX in order to enable | |
581 | * printing... | |
582 | */ | |
583 | ||
584 | if ((fp = cupsFileOpen("/var/spool/lp/SCHEDLOCK", "w")) == NULL) | |
585 | { | |
586 | syslog(LOG_LPR, "Unable to create fake lpsched lock file " | |
587 | "\"/var/spool/lp/SCHEDLOCK\"\' - %s!", | |
588 | strerror(errno)); | |
589 | } | |
590 | else | |
591 | { | |
592 | fchmod(cupsFileNumber(fp), 0644); | |
593 | fchown(cupsFileNumber(fp), User, Group); | |
594 | ||
595 | cupsFileClose(fp); | |
596 | } | |
597 | #endif /* __sgi */ | |
598 | ||
599 | /* | |
600 | * Initialize authentication certificates... | |
601 | */ | |
602 | ||
603 | cupsdInitCerts(); | |
604 | ||
605 | /* | |
606 | * If we are running in the background, signal the parent process that | |
607 | * we are up and running... | |
608 | */ | |
609 | ||
a41f09e2 | 610 | if (!fg || run_as_child) |
ef416fc2 | 611 | { |
612 | /* | |
613 | * Send a signal to the parent process, but only if the parent is | |
614 | * not PID 1 (init). This avoids accidentally shutting down the | |
615 | * system on OpenBSD if you CTRL-C the server before it is up... | |
616 | */ | |
617 | ||
618 | i = getppid(); /* Save parent PID to avoid race condition */ | |
619 | ||
620 | if (i != 1) | |
621 | kill(i, SIGUSR1); | |
622 | } | |
623 | ||
e1d6a774 | 624 | #ifdef __APPLE__ |
09ec0018 | 625 | /* |
626 | * Start power management framework... | |
627 | */ | |
628 | ||
1340db2d MS |
629 | if (use_sysman) |
630 | cupsdStartSystemMonitor(); | |
e1d6a774 | 631 | #endif /* __APPLE__ */ |
ef416fc2 | 632 | |
49d87452 MS |
633 | /* |
634 | * Send server-started event... | |
635 | */ | |
636 | ||
637 | #ifdef HAVE_LAUNCHD | |
638 | if (Launchd) | |
639 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, | |
640 | "Scheduler started via launchd."); | |
641 | else | |
642 | #endif /* HAVE_LAUNCHD */ | |
643 | if (fg) | |
644 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, | |
645 | "Scheduler started in foreground."); | |
646 | else | |
647 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, | |
648 | "Scheduler started in background."); | |
649 | ||
ef416fc2 | 650 | /* |
651 | * Start any pending print jobs... | |
652 | */ | |
653 | ||
654 | cupsdCheckJobs(); | |
655 | ||
656 | /* | |
657 | * Loop forever... | |
658 | */ | |
659 | ||
50fe7201 MS |
660 | current_time = time(NULL); |
661 | browse_time = current_time; | |
662 | event_time = current_time; | |
663 | expire_time = current_time; | |
ef416fc2 | 664 | fds = 1; |
5bd77a73 | 665 | report_time = 0; |
50fe7201 | 666 | senddoc_time = current_time; |
ef416fc2 | 667 | |
668 | while (!stop_scheduler) | |
669 | { | |
ef416fc2 | 670 | /* |
671 | * Check if there are dead children to handle... | |
672 | */ | |
673 | ||
674 | if (dead_children) | |
675 | process_children(); | |
676 | ||
677 | /* | |
678 | * Check if we need to load the server configuration file... | |
679 | */ | |
680 | ||
681 | if (NeedReload) | |
682 | { | |
683 | /* | |
684 | * Close any idle clients... | |
685 | */ | |
686 | ||
bd7854cb | 687 | if (cupsArrayCount(Clients) > 0) |
ef416fc2 | 688 | { |
bd7854cb | 689 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
690 | con; | |
691 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 692 | if (con->http.state == HTTP_WAITING) |
ef416fc2 | 693 | cupsdCloseClient(con); |
ef416fc2 | 694 | else |
695 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
696 | ||
697 | cupsdPauseListening(); | |
698 | } | |
699 | ||
ef416fc2 | 700 | /* |
701 | * Restart if all clients are closed and all jobs finished, or | |
702 | * if the reload timeout has elapsed... | |
703 | */ | |
704 | ||
bd7854cb | 705 | if ((cupsArrayCount(Clients) == 0 && |
238c3832 | 706 | (cupsArrayCount(PrintingJobs) == 0 || NeedReload != RELOAD_ALL)) || |
ef416fc2 | 707 | (time(NULL) - ReloadTime) >= ReloadTimeout) |
708 | { | |
a4d04587 | 709 | /* |
710 | * Shutdown the server... | |
711 | */ | |
712 | ||
7cf5915e MS |
713 | DoingShutdown = 1; |
714 | ||
a4d04587 | 715 | cupsdStopServer(); |
716 | ||
717 | /* | |
718 | * Read configuration... | |
719 | */ | |
720 | ||
ef416fc2 | 721 | if (!cupsdReadConfiguration()) |
722 | { | |
723 | syslog(LOG_LPR, "Unable to read configuration file \'%s\' - exiting!", | |
724 | ConfigurationFile); | |
725 | break; | |
726 | } | |
a4d04587 | 727 | |
728 | #if HAVE_LAUNCHD | |
4400e98d | 729 | if (Launchd) |
a4d04587 | 730 | { |
b94498cf | 731 | /* |
5a662dc0 MS |
732 | * If we were started by launchd, get the listen socket file |
733 | * descriptors... | |
b94498cf | 734 | */ |
735 | ||
a4d04587 | 736 | launchd_checkin(); |
e4572d57 | 737 | launchd_checkout(); |
a4d04587 | 738 | } |
739 | #endif /* HAVE_LAUNCHD */ | |
740 | ||
741 | /* | |
742 | * Startup the server... | |
743 | */ | |
744 | ||
7cf5915e MS |
745 | DoingShutdown = 0; |
746 | ||
a4d04587 | 747 | cupsdStartServer(); |
49d87452 MS |
748 | |
749 | /* | |
750 | * Send a server-restarted event... | |
751 | */ | |
752 | ||
753 | cupsdAddEvent(CUPSD_EVENT_SERVER_RESTARTED, NULL, NULL, | |
754 | "Scheduler restarted."); | |
ef416fc2 | 755 | } |
756 | } | |
757 | ||
758 | /* | |
f7deaa1a | 759 | * Check for available input or ready output. If cupsdDoSelect() |
760 | * returns 0 or -1, something bad happened and we should exit | |
761 | * immediately. | |
ef416fc2 | 762 | * |
763 | * Note that we at least have one listening socket open at all | |
764 | * times. | |
765 | */ | |
766 | ||
50fe7201 MS |
767 | if ((timeout = select_timeout(fds)) > 1 && LastEvent) |
768 | timeout = 1; | |
ef416fc2 | 769 | |
a4d04587 | 770 | #if HAVE_LAUNCHD |
771 | /* | |
772 | * If no other work is scheduled and we're being controlled by | |
411affcf | 773 | * launchd then timeout after 'LaunchdTimeout' seconds of |
a4d04587 | 774 | * inactivity... |
775 | */ | |
776 | ||
f7deaa1a | 777 | if (timeout == 86400 && Launchd && LaunchdTimeout && !NumPolled && |
bc44d920 | 778 | !cupsArrayCount(ActiveJobs) && |
ef55b745 MS |
779 | (!Browsing || |
780 | (!BrowseRemoteProtocols && | |
c7017ecc | 781 | (!BrowseLocalProtocols || !cupsArrayCount(Printers))))) |
a4d04587 | 782 | { |
f7deaa1a | 783 | timeout = LaunchdTimeout; |
a4d04587 | 784 | launchd_idle_exit = 1; |
785 | } | |
786 | else | |
787 | launchd_idle_exit = 0; | |
788 | #endif /* HAVE_LAUNCHD */ | |
789 | ||
f7deaa1a | 790 | if ((fds = cupsdDoSelect(timeout)) < 0) |
ef416fc2 | 791 | { |
ef416fc2 | 792 | /* |
793 | * Got an error from select! | |
794 | */ | |
795 | ||
f7deaa1a | 796 | #ifdef HAVE_DNSSD |
797 | cupsd_printer_t *p; /* Current printer */ | |
798 | #endif /* HAVE_DNSSD */ | |
799 | ||
800 | ||
801 | if (errno == EINTR) /* Just interrupted by a signal */ | |
ef416fc2 | 802 | continue; |
803 | ||
804 | /* | |
805 | * Log all sorts of debug info to help track down the problem. | |
806 | */ | |
807 | ||
f7deaa1a | 808 | cupsdLogMessage(CUPSD_LOG_EMERG, "cupsdDoSelect() failed - %s!", |
ef416fc2 | 809 | strerror(errno)); |
810 | ||
bd7854cb | 811 | for (i = 0, con = (cupsd_client_t *)cupsArrayFirst(Clients); |
812 | con; | |
813 | i ++, con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 814 | cupsdLogMessage(CUPSD_LOG_EMERG, |
815 | "Clients[%d] = %d, file = %d, state = %d", | |
816 | i, con->http.fd, con->file, con->http.state); | |
817 | ||
bd7854cb | 818 | for (i = 0, lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); |
819 | lis; | |
820 | i ++, lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
ef416fc2 | 821 | cupsdLogMessage(CUPSD_LOG_EMERG, "Listeners[%d] = %d", i, lis->fd); |
822 | ||
823 | cupsdLogMessage(CUPSD_LOG_EMERG, "BrowseSocket = %d", BrowseSocket); | |
824 | ||
923edb68 | 825 | cupsdLogMessage(CUPSD_LOG_EMERG, "CGIPipes[0] = %d", CGIPipes[0]); |
826 | ||
09ec0018 | 827 | #ifdef __APPLE__ |
828 | cupsdLogMessage(CUPSD_LOG_EMERG, "SysEventPipes[0] = %d", | |
829 | SysEventPipes[0]); | |
830 | #endif /* __APPLE__ */ | |
831 | ||
ef416fc2 | 832 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); |
833 | job; | |
834 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
835 | cupsdLogMessage(CUPSD_LOG_EMERG, "Jobs[%d] = %d < [%d %d] > [%d %d]", | |
836 | job->id, | |
837 | job->status_buffer ? job->status_buffer->fd : -1, | |
838 | job->print_pipes[0], job->print_pipes[1], | |
839 | job->back_pipes[0], job->back_pipes[1]); | |
f7deaa1a | 840 | |
841 | #ifdef HAVE_DNSSD | |
842 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); | |
843 | p; | |
844 | p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
7a14d768 MS |
845 | cupsdLogMessage(CUPSD_LOG_EMERG, "printer[%s] reg_name=\"%s\"", p->name, |
846 | p->reg_name ? p->reg_name : "(null)"); | |
f7deaa1a | 847 | #endif /* HAVE_DNSSD */ |
848 | ||
ef416fc2 | 849 | break; |
850 | } | |
851 | ||
852 | current_time = time(NULL); | |
853 | ||
3dfe78b3 MS |
854 | /* |
855 | * Write dirty config/state files... | |
856 | */ | |
857 | ||
858 | if (DirtyCleanTime && current_time >= DirtyCleanTime) | |
3dfe78b3 | 859 | cupsdCleanDirty(); |
3dfe78b3 | 860 | |
e6013cfa MS |
861 | #ifdef __APPLE__ |
862 | /* | |
863 | * If we are going to sleep and still have pending jobs, stop them after | |
864 | * a period of time... | |
865 | */ | |
866 | ||
867 | if (SleepJobs > 0 && current_time >= SleepJobs && | |
868 | cupsArrayCount(PrintingJobs) > 0) | |
869 | { | |
870 | SleepJobs = 0; | |
e60ec91f | 871 | cupsdStopAllJobs(CUPSD_JOB_DEFAULT, 5); |
e6013cfa MS |
872 | } |
873 | #endif /* __APPLE__ */ | |
874 | ||
a4924f6c MS |
875 | #ifndef __APPLE__ |
876 | /* | |
877 | * Update the network interfaces once a minute... | |
878 | */ | |
879 | ||
880 | if ((current_time - netif_time) >= 60) | |
881 | { | |
882 | netif_time = current_time; | |
883 | NetIFUpdate = 1; | |
884 | } | |
885 | #endif /* !__APPLE__ */ | |
886 | ||
a4d04587 | 887 | #if HAVE_LAUNCHD |
888 | /* | |
411affcf | 889 | * If no other work was scheduled and we're being controlled by launchd |
a4d04587 | 890 | * then timeout after 'LaunchdTimeout' seconds of inactivity... |
891 | */ | |
892 | ||
893 | if (!fds && launchd_idle_exit) | |
894 | { | |
895 | cupsdLogMessage(CUPSD_LOG_INFO, | |
896 | "Printer sharing is off and there are no jobs pending, " | |
897 | "will restart on demand."); | |
898 | stop_scheduler = 1; | |
899 | break; | |
900 | } | |
901 | #endif /* HAVE_LAUNCHD */ | |
902 | ||
76cd9e37 MS |
903 | /* |
904 | * Resume listening for new connections as needed... | |
905 | */ | |
906 | ||
907 | if (ListeningPaused && ListeningPaused <= current_time && | |
908 | cupsArrayCount(Clients) < MaxClients) | |
909 | cupsdResumeListening(); | |
910 | ||
ef416fc2 | 911 | /* |
bd7854cb | 912 | * Expire subscriptions and unload completed jobs as needed... |
ef416fc2 | 913 | */ |
914 | ||
bd7854cb | 915 | if (current_time > expire_time) |
ef416fc2 | 916 | { |
bd7854cb | 917 | if (cupsArrayCount(Subscriptions) > 0) |
918 | cupsdExpireSubscriptions(NULL, NULL); | |
919 | ||
920 | cupsdUnloadCompletedJobs(); | |
ef416fc2 | 921 | |
922 | expire_time = current_time; | |
923 | } | |
924 | ||
925 | /* | |
926 | * Update the browse list as needed... | |
927 | */ | |
928 | ||
f7deaa1a | 929 | if (Browsing) |
ef416fc2 | 930 | { |
ef416fc2 | 931 | #ifdef HAVE_LIBSLP |
b423cd4c | 932 | if ((BrowseRemoteProtocols & BROWSE_SLP) && |
ef416fc2 | 933 | BrowseSLPRefresh <= current_time) |
934 | cupsdUpdateSLPBrowse(); | |
935 | #endif /* HAVE_LIBSLP */ | |
b423cd4c | 936 | |
937 | #ifdef HAVE_LDAP | |
938 | if ((BrowseRemoteProtocols & BROWSE_LDAP) && | |
939 | BrowseLDAPRefresh <= current_time) | |
940 | cupsdUpdateLDAPBrowse(); | |
941 | #endif /* HAVE_LDAP */ | |
fa73b229 | 942 | } |
ef416fc2 | 943 | |
1f0275e3 | 944 | if (Browsing && current_time > browse_time) |
fa73b229 | 945 | { |
946 | cupsdSendBrowseList(); | |
947 | browse_time = current_time; | |
ef416fc2 | 948 | } |
949 | ||
950 | /* | |
f7deaa1a | 951 | * Update the root certificate once every 5 minutes if we have client |
952 | * connections... | |
ef416fc2 | 953 | */ |
954 | ||
f7deaa1a | 955 | if ((current_time - RootCertTime) >= RootCertDuration && RootCertDuration && |
956 | !RunUser && cupsArrayCount(Clients)) | |
957 | { | |
958 | /* | |
959 | * Update the root certificate... | |
960 | */ | |
961 | ||
962 | cupsdDeleteCert(0); | |
5bd77a73 | 963 | cupsdAddCert(0, "root", NULL); |
f7deaa1a | 964 | } |
ef416fc2 | 965 | |
966 | /* | |
967 | * Check for new data on the client sockets... | |
968 | */ | |
969 | ||
bd7854cb | 970 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
971 | con; | |
972 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 973 | { |
974 | /* | |
f7deaa1a | 975 | * Process pending data in the input buffer... |
ef416fc2 | 976 | */ |
977 | ||
f7deaa1a | 978 | if (con->http.used) |
ef416fc2 | 979 | { |
f7deaa1a | 980 | cupsdReadClient(con); |
981 | continue; | |
ef416fc2 | 982 | } |
983 | ||
984 | /* | |
985 | * Check the activity and close old clients... | |
986 | */ | |
987 | ||
988 | activity = current_time - Timeout; | |
989 | if (con->http.activity < activity && !con->pipe_pid) | |
990 | { | |
991 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
992 | "Closing client %d after %d seconds of inactivity...", | |
993 | con->http.fd, Timeout); | |
994 | ||
995 | cupsdCloseClient(con); | |
ef416fc2 | 996 | continue; |
997 | } | |
998 | } | |
999 | ||
1000 | /* | |
1001 | * Update any pending multi-file documents... | |
1002 | */ | |
1003 | ||
1004 | if ((current_time - senddoc_time) >= 10) | |
1005 | { | |
1006 | cupsdCheckJobs(); | |
ef55b745 | 1007 | cupsdCleanJobs(); |
ef416fc2 | 1008 | senddoc_time = current_time; |
1009 | } | |
1010 | ||
ef416fc2 | 1011 | /* |
5bd77a73 | 1012 | * Log statistics at most once a minute when in debug mode... |
ef416fc2 | 1013 | */ |
1014 | ||
5bd77a73 | 1015 | if ((current_time - report_time) >= 60 && LogLevel >= CUPSD_LOG_DEBUG) |
ef416fc2 | 1016 | { |
5bd77a73 MS |
1017 | size_t string_count, /* String count */ |
1018 | alloc_bytes, /* Allocated string bytes */ | |
1019 | total_bytes; /* Total string bytes */ | |
4400e98d | 1020 | #ifdef HAVE_MALLINFO |
5bd77a73 | 1021 | struct mallinfo mem; /* Malloc information */ |
ef416fc2 | 1022 | |
1023 | ||
1024 | mem = mallinfo(); | |
5bd77a73 MS |
1025 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-arena=%lu", mem.arena); |
1026 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-used=%lu", | |
1027 | mem.usmblks + mem.uordblks); | |
1028 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-free=%lu", | |
ef416fc2 | 1029 | mem.fsmblks + mem.fordblks); |
4400e98d | 1030 | #endif /* HAVE_MALLINFO */ |
1031 | ||
5bd77a73 MS |
1032 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: clients=%d", |
1033 | cupsArrayCount(Clients)); | |
1034 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: jobs=%d", | |
1035 | cupsArrayCount(Jobs)); | |
1036 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: jobs-active=%d", | |
1037 | cupsArrayCount(ActiveJobs)); | |
1038 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: printers=%d", | |
1039 | cupsArrayCount(Printers)); | |
1040 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: printers-implicit=%d", | |
1041 | cupsArrayCount(ImplicitPrinters)); | |
1042 | ||
757d2cad | 1043 | string_count = _cupsStrStatistics(&alloc_bytes, &total_bytes); |
5bd77a73 MS |
1044 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
1045 | "Report: stringpool-string-count=" CUPS_LLFMT, | |
1046 | CUPS_LLCAST string_count); | |
1047 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1048 | "Report: stringpool-alloc-bytes=" CUPS_LLFMT, | |
1049 | CUPS_LLCAST alloc_bytes); | |
1050 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1051 | "Report: stringpool-total-bytes=" CUPS_LLFMT, | |
4400e98d | 1052 | CUPS_LLCAST total_bytes); |
1053 | ||
5bd77a73 | 1054 | report_time = current_time; |
ef416fc2 | 1055 | } |
ef416fc2 | 1056 | |
fa73b229 | 1057 | /* |
1058 | * Handle OS-specific event notification for any events that have | |
1059 | * accumulated. Don't send these more than once a second... | |
1060 | */ | |
1061 | ||
50fe7201 | 1062 | if (LastEvent && (current_time - event_time) >= 1) |
fa73b229 | 1063 | { |
1064 | #ifdef HAVE_NOTIFY_POST | |
a41f09e2 MS |
1065 | if (LastEvent & (CUPSD_EVENT_PRINTER_ADDED | |
1066 | CUPSD_EVENT_PRINTER_DELETED | | |
1067 | CUPSD_EVENT_PRINTER_MODIFIED)) | |
fa73b229 | 1068 | { |
e00b005a | 1069 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1070 | "notify_post(\"com.apple.printerListChange\")"); |
1071 | notify_post("com.apple.printerListChange"); | |
1072 | } | |
1073 | ||
1074 | if (LastEvent & CUPSD_EVENT_PRINTER_STATE_CHANGED) | |
1075 | { | |
e00b005a | 1076 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1077 | "notify_post(\"com.apple.printerHistoryChange\")"); |
1078 | notify_post("com.apple.printerHistoryChange"); | |
1079 | } | |
1080 | ||
1081 | if (LastEvent & (CUPSD_EVENT_JOB_STATE_CHANGED | | |
1082 | CUPSD_EVENT_JOB_CONFIG_CHANGED | | |
1083 | CUPSD_EVENT_JOB_PROGRESS)) | |
1084 | { | |
e00b005a | 1085 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1086 | "notify_post(\"com.apple.jobChange\")"); |
1087 | notify_post("com.apple.jobChange"); | |
1088 | } | |
1089 | #endif /* HAVE_NOTIFY_POST */ | |
1090 | ||
1091 | /* | |
e53920b9 | 1092 | * Reset the accumulated events... |
fa73b229 | 1093 | */ |
1094 | ||
50fe7201 MS |
1095 | LastEvent = CUPSD_EVENT_NONE; |
1096 | event_time = current_time; | |
fa73b229 | 1097 | } |
ef416fc2 | 1098 | } |
1099 | ||
1100 | /* | |
1101 | * Log a message based on what happened... | |
1102 | */ | |
1103 | ||
1104 | if (stop_scheduler) | |
49d87452 | 1105 | { |
ef416fc2 | 1106 | cupsdLogMessage(CUPSD_LOG_INFO, "Scheduler shutting down normally."); |
49d87452 MS |
1107 | cupsdAddEvent(CUPSD_EVENT_SERVER_STOPPED, NULL, NULL, |
1108 | "Scheduler shutting down normally."); | |
1109 | } | |
ef416fc2 | 1110 | else |
49d87452 | 1111 | { |
ef416fc2 | 1112 | cupsdLogMessage(CUPSD_LOG_ERROR, |
1113 | "Scheduler shutting down due to program error."); | |
49d87452 MS |
1114 | cupsdAddEvent(CUPSD_EVENT_SERVER_STOPPED, NULL, NULL, |
1115 | "Scheduler shutting down due to program error."); | |
1116 | } | |
ef416fc2 | 1117 | |
1118 | /* | |
7ff4fea9 | 1119 | * Close all network clients... |
ef416fc2 | 1120 | */ |
1121 | ||
7cf5915e MS |
1122 | DoingShutdown = 1; |
1123 | ||
ef416fc2 | 1124 | cupsdStopServer(); |
1125 | ||
7ff4fea9 MS |
1126 | #ifdef HAVE_LAUNCHD |
1127 | /* | |
1128 | * Update the launchd KeepAlive file as needed... | |
1129 | */ | |
1130 | ||
1131 | if (Launchd) | |
1132 | launchd_checkout(); | |
1133 | #endif /* HAVE_LAUNCHD */ | |
1134 | ||
1135 | /* | |
1136 | * Stop all jobs... | |
1137 | */ | |
1138 | ||
bd7854cb | 1139 | cupsdFreeAllJobs(); |
ef416fc2 | 1140 | |
e1d6a774 | 1141 | #ifdef __APPLE__ |
7ff4fea9 MS |
1142 | /* |
1143 | * Stop monitoring system event monitoring... | |
1144 | */ | |
1145 | ||
1340db2d MS |
1146 | if (use_sysman) |
1147 | cupsdStopSystemMonitor(); | |
e1d6a774 | 1148 | #endif /* __APPLE__ */ |
09ec0018 | 1149 | |
c24d2134 | 1150 | #ifdef HAVE_GSSAPI |
7ff4fea9 MS |
1151 | /* |
1152 | * Free the scheduler's Kerberos context... | |
1153 | */ | |
1154 | ||
c24d2134 MS |
1155 | # ifdef __APPLE__ |
1156 | /* | |
1157 | * If the weak-linked GSSAPI/Kerberos library is not present, don't try | |
1158 | * to use it... | |
1159 | */ | |
1160 | ||
1161 | if (krb5_init_context != NULL) | |
1162 | # endif /* __APPLE__ */ | |
a41f09e2 MS |
1163 | if (KerberosContext) |
1164 | krb5_free_context(KerberosContext); | |
c24d2134 MS |
1165 | #endif /* HAVE_GSSAPI */ |
1166 | ||
ef416fc2 | 1167 | #ifdef __sgi |
1168 | /* | |
1169 | * Remove the fake IRIX lpsched lock file, but only if the existing | |
1170 | * file is not a FIFO which indicates that the real IRIX lpsched is | |
1171 | * running... | |
1172 | */ | |
1173 | ||
1174 | if (!stat("/var/spool/lp/FIFO", &statbuf)) | |
1175 | if (!S_ISFIFO(statbuf.st_mode)) | |
1176 | unlink("/var/spool/lp/SCHEDLOCK"); | |
1177 | #endif /* __sgi */ | |
1178 | ||
f7deaa1a | 1179 | cupsdStopSelect(); |
ef416fc2 | 1180 | |
1181 | return (!stop_scheduler); | |
1182 | } | |
1183 | ||
1184 | ||
10d09e33 MS |
1185 | /* |
1186 | * 'cupsdAddString()' - Copy and add a string to an array. | |
1187 | */ | |
1188 | ||
1189 | int /* O - 1 on success, 0 on failure */ | |
1190 | cupsdAddString(cups_array_t **a, /* IO - String array */ | |
1191 | const char *s) /* I - String to copy and add */ | |
1192 | { | |
1193 | if (!*a) | |
1194 | *a = cupsArrayNew3((cups_array_func_t)strcmp, NULL, | |
1195 | (cups_ahash_func_t)NULL, 0, | |
1196 | (cups_acopy_func_t)_cupsStrAlloc, | |
1197 | (cups_afree_func_t)_cupsStrFree); | |
1198 | ||
1199 | return (cupsArrayAdd(*a, (char *)s)); | |
1200 | } | |
1201 | ||
1202 | ||
d7871c8c MS |
1203 | /* |
1204 | * 'cupsdCheckProcess()' - Tell the main loop to check for dead children. | |
1205 | */ | |
1206 | ||
1207 | void | |
1208 | cupsdCheckProcess(void) | |
1209 | { | |
1210 | /* | |
1211 | * Flag that we have dead children... | |
1212 | */ | |
1213 | ||
1214 | dead_children = 1; | |
1215 | } | |
1216 | ||
1217 | ||
10d09e33 MS |
1218 | /* |
1219 | * 'cupsdClearString()' - Clear a string. | |
1220 | */ | |
1221 | ||
1222 | void | |
1223 | cupsdClearString(char **s) /* O - String value */ | |
1224 | { | |
1225 | if (s && *s) | |
1226 | { | |
1227 | _cupsStrFree(*s); | |
1228 | *s = NULL; | |
1229 | } | |
1230 | } | |
1231 | ||
1232 | ||
ef416fc2 | 1233 | /* |
1234 | * 'cupsdClosePipe()' - Close a pipe as necessary. | |
1235 | */ | |
1236 | ||
1237 | void | |
1238 | cupsdClosePipe(int *fds) /* I - Pipe file descriptors (2) */ | |
1239 | { | |
1240 | /* | |
1241 | * Close file descriptors as needed... | |
1242 | */ | |
1243 | ||
1244 | if (fds[0] >= 0) | |
1245 | { | |
1246 | close(fds[0]); | |
1247 | fds[0] = -1; | |
1248 | } | |
1249 | ||
1250 | if (fds[1] >= 0) | |
1251 | { | |
1252 | close(fds[1]); | |
1253 | fds[1] = -1; | |
1254 | } | |
1255 | } | |
1256 | ||
1257 | ||
10d09e33 MS |
1258 | /* |
1259 | * 'cupsdFreeStrings()' - Free an array of strings. | |
1260 | */ | |
1261 | ||
1262 | void | |
1263 | cupsdFreeStrings(cups_array_t **a) /* IO - String array */ | |
1264 | { | |
1265 | if (*a) | |
1266 | { | |
1267 | cupsArrayDelete(*a); | |
1268 | *a = NULL; | |
1269 | } | |
1270 | } | |
1271 | ||
1272 | ||
1273 | /* | |
1274 | * 'cupsdHoldSignals()' - Hold child and termination signals. | |
1275 | */ | |
1276 | ||
1277 | void | |
1278 | cupsdHoldSignals(void) | |
1279 | { | |
1280 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
1281 | sigset_t newmask; /* New POSIX signal mask */ | |
1282 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
1283 | ||
1284 | ||
1285 | holdcount ++; | |
1286 | if (holdcount > 1) | |
1287 | return; | |
1288 | ||
1289 | #ifdef HAVE_SIGSET | |
1290 | sighold(SIGTERM); | |
1291 | sighold(SIGCHLD); | |
1292 | #elif defined(HAVE_SIGACTION) | |
1293 | sigemptyset(&newmask); | |
1294 | sigaddset(&newmask, SIGTERM); | |
1295 | sigaddset(&newmask, SIGCHLD); | |
1296 | sigprocmask(SIG_BLOCK, &newmask, &holdmask); | |
1297 | #endif /* HAVE_SIGSET */ | |
1298 | } | |
1299 | ||
1300 | ||
82f97232 MS |
1301 | /* |
1302 | * 'cupsdMakeUUID()' - Make a UUID URI conforming to RFC 4122. | |
1303 | * | |
1304 | * The buffer needs to be at least 46 bytes in size. | |
1305 | */ | |
1306 | ||
1307 | char * /* I - UUID string */ | |
1308 | cupsdMakeUUID(const char *name, /* I - Object name */ | |
1309 | int number, /* I - Object number */ | |
1310 | char *buffer, /* I - String buffer */ | |
1311 | size_t bufsize) /* I - Size of buffer */ | |
1312 | { | |
1313 | char data[1024]; /* Source string for MD5 */ | |
1314 | _cups_md5_state_t md5state; /* MD5 state */ | |
1315 | unsigned char md5sum[16]; /* MD5 digest/sum */ | |
1316 | ||
1317 | ||
1318 | /* | |
1319 | * Build a version 3 UUID conforming to RFC 4122. | |
1320 | * | |
1321 | * Start with the MD5 sum of the ServerName, RemotePort, object name and | |
1322 | * number, and some random data on the end. | |
1323 | */ | |
1324 | ||
1325 | snprintf(data, sizeof(data), "%s:%d:%s:%d:%04x:%04x", ServerName, | |
1326 | RemotePort, name ? name : ServerName, number, | |
1327 | CUPS_RAND() & 0xffff, CUPS_RAND() & 0xffff); | |
1328 | ||
1329 | _cupsMD5Init(&md5state); | |
1330 | _cupsMD5Append(&md5state, (unsigned char *)data, strlen(data)); | |
1331 | _cupsMD5Finish(&md5state, md5sum); | |
1332 | ||
1333 | /* | |
1334 | * Generate the UUID from the MD5... | |
1335 | */ | |
1336 | ||
1337 | snprintf(buffer, bufsize, | |
1338 | "urn:uuid:%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-" | |
1339 | "%02x%02x%02x%02x%02x%02x", | |
1340 | md5sum[0], md5sum[1], md5sum[2], md5sum[3], md5sum[4], md5sum[5], | |
1341 | (md5sum[6] & 15) | 0x30, md5sum[7], (md5sum[8] & 0x3f) | 0x40, | |
1342 | md5sum[9], md5sum[10], md5sum[11], md5sum[12], md5sum[13], | |
1343 | md5sum[14], md5sum[15]); | |
1344 | ||
1345 | return (buffer); | |
1346 | } | |
1347 | ||
1348 | ||
ef416fc2 | 1349 | /* |
1350 | * 'cupsdOpenPipe()' - Create a pipe which is closed on exec. | |
1351 | */ | |
1352 | ||
1353 | int /* O - 0 on success, -1 on error */ | |
1354 | cupsdOpenPipe(int *fds) /* O - Pipe file descriptors (2) */ | |
1355 | { | |
1356 | /* | |
1357 | * Create the pipe... | |
1358 | */ | |
1359 | ||
1360 | if (pipe(fds)) | |
e1d6a774 | 1361 | { |
1362 | fds[0] = -1; | |
1363 | fds[1] = -1; | |
1364 | ||
ef416fc2 | 1365 | return (-1); |
e1d6a774 | 1366 | } |
ef416fc2 | 1367 | |
1368 | /* | |
1369 | * Set the "close on exec" flag on each end of the pipe... | |
1370 | */ | |
1371 | ||
1372 | if (fcntl(fds[0], F_SETFD, fcntl(fds[0], F_GETFD) | FD_CLOEXEC)) | |
1373 | { | |
1374 | close(fds[0]); | |
1375 | close(fds[1]); | |
e1d6a774 | 1376 | |
1377 | fds[0] = -1; | |
1378 | fds[1] = -1; | |
1379 | ||
ef416fc2 | 1380 | return (-1); |
1381 | } | |
1382 | ||
1383 | if (fcntl(fds[1], F_SETFD, fcntl(fds[1], F_GETFD) | FD_CLOEXEC)) | |
1384 | { | |
1385 | close(fds[0]); | |
1386 | close(fds[1]); | |
e1d6a774 | 1387 | |
1388 | fds[0] = -1; | |
1389 | fds[1] = -1; | |
1390 | ||
ef416fc2 | 1391 | return (-1); |
1392 | } | |
1393 | ||
1394 | /* | |
1395 | * Return 0 indicating success... | |
1396 | */ | |
1397 | ||
1398 | return (0); | |
1399 | } | |
1400 | ||
1401 | ||
ef416fc2 | 1402 | /* |
1403 | * 'cupsdReleaseSignals()' - Release signals for delivery. | |
1404 | */ | |
1405 | ||
1406 | void | |
1407 | cupsdReleaseSignals(void) | |
1408 | { | |
1409 | holdcount --; | |
1410 | if (holdcount > 0) | |
1411 | return; | |
1412 | ||
1413 | #ifdef HAVE_SIGSET | |
1414 | sigrelse(SIGTERM); | |
1415 | sigrelse(SIGCHLD); | |
1416 | #elif defined(HAVE_SIGACTION) | |
1417 | sigprocmask(SIG_SETMASK, &holdmask, NULL); | |
1418 | #endif /* HAVE_SIGSET */ | |
1419 | } | |
1420 | ||
1421 | ||
1422 | /* | |
1423 | * 'cupsdSetString()' - Set a string value. | |
1424 | */ | |
1425 | ||
1426 | void | |
1427 | cupsdSetString(char **s, /* O - New string */ | |
1428 | const char *v) /* I - String value */ | |
1429 | { | |
1430 | if (!s || *s == v) | |
1431 | return; | |
1432 | ||
1433 | if (*s) | |
e53920b9 | 1434 | _cupsStrFree(*s); |
ef416fc2 | 1435 | |
1436 | if (v) | |
e53920b9 | 1437 | *s = _cupsStrAlloc(v); |
ef416fc2 | 1438 | else |
1439 | *s = NULL; | |
1440 | } | |
1441 | ||
1442 | ||
1443 | /* | |
1444 | * 'cupsdSetStringf()' - Set a formatted string value. | |
1445 | */ | |
1446 | ||
1447 | void | |
1448 | cupsdSetStringf(char **s, /* O - New string */ | |
1449 | const char *f, /* I - Printf-style format string */ | |
1450 | ...) /* I - Additional args as needed */ | |
1451 | { | |
1452 | char v[4096]; /* Formatting string value */ | |
1453 | va_list ap; /* Argument pointer */ | |
1454 | char *olds; /* Old string */ | |
1455 | ||
1456 | ||
1457 | if (!s) | |
1458 | return; | |
1459 | ||
1460 | olds = *s; | |
1461 | ||
1462 | if (f) | |
1463 | { | |
1464 | va_start(ap, f); | |
1465 | vsnprintf(v, sizeof(v), f, ap); | |
1466 | va_end(ap); | |
1467 | ||
e53920b9 | 1468 | *s = _cupsStrAlloc(v); |
ef416fc2 | 1469 | } |
1470 | else | |
1471 | *s = NULL; | |
1472 | ||
1473 | if (olds) | |
e53920b9 | 1474 | _cupsStrFree(olds); |
ef416fc2 | 1475 | } |
1476 | ||
1477 | ||
ba55dc12 MS |
1478 | /* |
1479 | * 'cupsd_clean_files()' - Clean out old files. | |
1480 | */ | |
1481 | ||
1482 | static void | |
1483 | cupsd_clean_files(const char *path, /* I - Directory to clean */ | |
1484 | const char *pattern) /* I - Filename pattern or NULL */ | |
1485 | { | |
1486 | cups_dir_t *dir; /* Directory */ | |
1487 | cups_dentry_t *dent; /* Directory entry */ | |
1488 | char filename[1024]; /* Filename */ | |
1489 | int status; /* Status from unlink/rmdir */ | |
1490 | ||
1491 | ||
1492 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1493 | "cupsd_clean_files(path=\"%s\", pattern=\"%s\")", path, | |
1494 | pattern ? pattern : "(null)"); | |
1495 | ||
1496 | if ((dir = cupsDirOpen(path)) == NULL) | |
1497 | { | |
1498 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to open directory \"%s\" - %s", | |
1499 | path, strerror(errno)); | |
1500 | return; | |
1501 | } | |
1502 | ||
1503 | cupsdLogMessage(CUPSD_LOG_INFO, "Cleaning out old files in \"%s\"...", path); | |
1504 | ||
1505 | while ((dent = cupsDirRead(dir)) != NULL) | |
1506 | { | |
1507 | if (pattern && fnmatch(pattern, dent->filename, 0)) | |
1508 | continue; | |
1509 | ||
1510 | snprintf(filename, sizeof(filename), "%s/%s", path, dent->filename); | |
1511 | ||
1512 | if (S_ISDIR(dent->fileinfo.st_mode)) | |
1513 | { | |
1514 | cupsd_clean_files(filename, pattern); | |
1515 | ||
1516 | status = rmdir(filename); | |
1517 | } | |
1518 | else | |
1519 | status = unlink(filename); | |
1520 | ||
1521 | if (status) | |
1522 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to remove \"%s\" - %s", filename, | |
1523 | strerror(errno)); | |
1524 | else | |
1525 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Removed \"%s\"...", filename); | |
1526 | } | |
1527 | ||
1528 | cupsDirClose(dir); | |
1529 | } | |
1530 | ||
1531 | ||
a4d04587 | 1532 | #ifdef HAVE_LAUNCHD |
1533 | /* | |
1534 | * 'launchd_checkin()' - Check-in with launchd and collect the listening fds. | |
1535 | */ | |
1536 | ||
1537 | static void | |
1538 | launchd_checkin(void) | |
1539 | { | |
06d4e77b | 1540 | size_t i, /* Looping var */ |
f8b3a85b | 1541 | count; /* Number of listeners */ |
5180a04c | 1542 | # ifdef HAVE_SSL |
06d4e77b | 1543 | int portnum; /* Port number */ |
5180a04c | 1544 | # endif /* HAVE_SSL */ |
a4d04587 | 1545 | launch_data_t ld_msg, /* Launch data message */ |
1546 | ld_resp, /* Launch data response */ | |
1547 | ld_array, /* Launch data array */ | |
1548 | ld_sockets, /* Launch data sockets dictionary */ | |
a4d04587 | 1549 | tmp; /* Launch data */ |
1550 | cupsd_listener_t *lis; /* Listeners array */ | |
1551 | http_addr_t addr; /* Address variable */ | |
1552 | socklen_t addrlen; /* Length of address */ | |
f7deaa1a | 1553 | int fd; /* File descriptor */ |
1554 | char s[256]; /* String addresss */ | |
a4d04587 | 1555 | |
1556 | ||
1557 | cupsdLogMessage(CUPSD_LOG_DEBUG, "launchd_checkin: pid=%d", (int)getpid()); | |
1558 | ||
1559 | /* | |
1560 | * Check-in with launchd... | |
1561 | */ | |
1562 | ||
1563 | ld_msg = launch_data_new_string(LAUNCH_KEY_CHECKIN); | |
1564 | if ((ld_resp = launch_msg(ld_msg)) == NULL) | |
1565 | { | |
bd7854cb | 1566 | cupsdLogMessage(CUPSD_LOG_ERROR, |
a4d04587 | 1567 | "launchd_checkin: launch_msg(\"" LAUNCH_KEY_CHECKIN |
1568 | "\") IPC failure"); | |
1569 | exit(EXIT_FAILURE); | |
749b1e90 | 1570 | return; /* anti-compiler-warning */ |
a4d04587 | 1571 | } |
bd7854cb | 1572 | |
a4d04587 | 1573 | if (launch_data_get_type(ld_resp) == LAUNCH_DATA_ERRNO) |
1574 | { | |
1575 | errno = launch_data_get_errno(ld_resp); | |
1576 | cupsdLogMessage(CUPSD_LOG_ERROR, "launchd_checkin: Check-in failed: %s", | |
1577 | strerror(errno)); | |
1578 | exit(EXIT_FAILURE); | |
749b1e90 | 1579 | return; /* anti-compiler-warning */ |
a4d04587 | 1580 | } |
1581 | ||
a4d04587 | 1582 | /* |
1583 | * Get the sockets dictionary... | |
1584 | */ | |
1585 | ||
749b1e90 MS |
1586 | if ((ld_sockets = launch_data_dict_lookup(ld_resp, LAUNCH_JOBKEY_SOCKETS)) |
1587 | == NULL) | |
a4d04587 | 1588 | { |
1589 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1590 | "launchd_checkin: No sockets found to answer requests on!"); | |
1591 | exit(EXIT_FAILURE); | |
749b1e90 | 1592 | return; /* anti-compiler-warning */ |
a4d04587 | 1593 | } |
bd7854cb | 1594 | |
a4d04587 | 1595 | /* |
1596 | * Get the array of listener sockets... | |
1597 | */ | |
1598 | ||
749b1e90 | 1599 | if ((ld_array = launch_data_dict_lookup(ld_sockets, "Listeners")) == NULL) |
a4d04587 | 1600 | { |
1601 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1602 | "launchd_checkin: No sockets found to answer requests on!"); | |
1603 | exit(EXIT_FAILURE); | |
749b1e90 | 1604 | return; /* anti-compiler-warning */ |
a4d04587 | 1605 | } |
1606 | ||
1607 | /* | |
1608 | * Add listening fd(s) to the Listener array... | |
1609 | */ | |
1610 | ||
1611 | if (launch_data_get_type(ld_array) == LAUNCH_DATA_ARRAY) | |
1612 | { | |
f7deaa1a | 1613 | count = launch_data_array_get_count(ld_array); |
bd7854cb | 1614 | |
1615 | for (i = 0; i < count; i ++) | |
a4d04587 | 1616 | { |
1617 | /* | |
f7deaa1a | 1618 | * Get the launchd file descriptor and address... |
a4d04587 | 1619 | */ |
bd7854cb | 1620 | |
749b1e90 | 1621 | if ((tmp = launch_data_array_get_index(ld_array, i)) != NULL) |
bd7854cb | 1622 | { |
749b1e90 MS |
1623 | fd = launch_data_get_fd(tmp); |
1624 | addrlen = sizeof(addr); | |
bd7854cb | 1625 | |
749b1e90 MS |
1626 | if (getsockname(fd, (struct sockaddr *)&addr, &addrlen)) |
1627 | { | |
1628 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1629 | "launchd_checkin: Unable to get local address - %s", | |
1630 | strerror(errno)); | |
1631 | continue; | |
1632 | } | |
bd7854cb | 1633 | |
749b1e90 MS |
1634 | /* |
1635 | * Try to match the launchd socket address to one of the listeners... | |
1636 | */ | |
f7deaa1a | 1637 | |
749b1e90 MS |
1638 | for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); |
1639 | lis; | |
1640 | lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
1641 | if (httpAddrEqual(&lis->address, &addr)) | |
1642 | break; | |
a4d04587 | 1643 | |
749b1e90 MS |
1644 | /* |
1645 | * Add a new listener If there's no match... | |
1646 | */ | |
f7deaa1a | 1647 | |
749b1e90 MS |
1648 | if (lis) |
1649 | { | |
ef55b745 | 1650 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
749b1e90 MS |
1651 | "launchd_checkin: Matched existing listener %s with fd %d...", |
1652 | httpAddrString(&(lis->address), s, sizeof(s)), fd); | |
1653 | } | |
1654 | else | |
1655 | { | |
ef55b745 | 1656 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
749b1e90 MS |
1657 | "launchd_checkin: Adding new listener %s with fd %d...", |
1658 | httpAddrString(&addr, s, sizeof(s)), fd); | |
f7deaa1a | 1659 | |
749b1e90 MS |
1660 | if ((lis = calloc(1, sizeof(cupsd_listener_t))) == NULL) |
1661 | { | |
1662 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
5a662dc0 MS |
1663 | "launchd_checkin: Unable to allocate listener - " |
1664 | "%s.", strerror(errno)); | |
749b1e90 MS |
1665 | exit(EXIT_FAILURE); |
1666 | } | |
f7deaa1a | 1667 | |
749b1e90 | 1668 | cupsArrayAdd(Listeners, lis); |
bd7854cb | 1669 | |
749b1e90 MS |
1670 | memcpy(&lis->address, &addr, sizeof(lis->address)); |
1671 | } | |
1672 | ||
1673 | lis->fd = fd; | |
f7deaa1a | 1674 | |
a4d04587 | 1675 | # ifdef HAVE_SSL |
749b1e90 | 1676 | portnum = 0; |
bd7854cb | 1677 | |
a4d04587 | 1678 | # ifdef AF_INET6 |
749b1e90 MS |
1679 | if (lis->address.addr.sa_family == AF_INET6) |
1680 | portnum = ntohs(lis->address.ipv6.sin6_port); | |
1681 | else | |
a4d04587 | 1682 | # endif /* AF_INET6 */ |
749b1e90 MS |
1683 | if (lis->address.addr.sa_family == AF_INET) |
1684 | portnum = ntohs(lis->address.ipv4.sin_port); | |
a4d04587 | 1685 | |
749b1e90 MS |
1686 | if (portnum == 443) |
1687 | lis->encryption = HTTP_ENCRYPT_ALWAYS; | |
a4d04587 | 1688 | # endif /* HAVE_SSL */ |
749b1e90 | 1689 | } |
a4d04587 | 1690 | } |
1691 | } | |
1692 | ||
a4d04587 | 1693 | launch_data_free(ld_msg); |
1694 | launch_data_free(ld_resp); | |
1695 | } | |
1696 | ||
1697 | ||
f7deaa1a | 1698 | /* |
1699 | * 'launchd_checkout()' - Update the launchd KeepAlive file as needed. | |
1700 | */ | |
1701 | ||
1702 | static void | |
1703 | launchd_checkout(void) | |
1704 | { | |
1705 | int fd; /* File descriptor */ | |
1706 | ||
1707 | ||
1708 | /* | |
1709 | * Create or remove the launchd KeepAlive file based on whether | |
ef55b745 | 1710 | * there are active jobs, polling, browsing for remote printers or |
f7deaa1a | 1711 | * shared printers to advertise... |
1712 | */ | |
1713 | ||
c7017ecc MS |
1714 | if (cupsArrayCount(ActiveJobs) || NumPolled || |
1715 | (Browsing && | |
1716 | (BrowseRemoteProtocols || | |
1717 | (BrowseLocalProtocols && cupsArrayCount(Printers))))) | |
f7deaa1a | 1718 | { |
1719 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
5a662dc0 MS |
1720 | "Creating launchd keepalive file \"" CUPS_KEEPALIVE |
1721 | "\"..."); | |
f7deaa1a | 1722 | |
1723 | if ((fd = open(CUPS_KEEPALIVE, O_RDONLY | O_CREAT | O_EXCL, S_IRUSR)) >= 0) | |
1724 | close(fd); | |
1725 | } | |
1726 | else | |
1727 | { | |
1728 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
5a662dc0 MS |
1729 | "Removing launchd keepalive file \"" CUPS_KEEPALIVE |
1730 | "\"..."); | |
f7deaa1a | 1731 | |
1732 | unlink(CUPS_KEEPALIVE); | |
1733 | } | |
1734 | } | |
a4d04587 | 1735 | #endif /* HAVE_LAUNCHD */ |
1736 | ||
1737 | ||
ef416fc2 | 1738 | /* |
1739 | * 'parent_handler()' - Catch USR1/CHLD signals... | |
1740 | */ | |
1741 | ||
1742 | static void | |
1743 | parent_handler(int sig) /* I - Signal */ | |
1744 | { | |
1745 | /* | |
1746 | * Store the signal we got from the OS and return... | |
1747 | */ | |
1748 | ||
1749 | parent_signal = sig; | |
1750 | } | |
1751 | ||
1752 | ||
1753 | /* | |
1754 | * 'process_children()' - Process all dead children... | |
1755 | */ | |
1756 | ||
1757 | static void | |
1758 | process_children(void) | |
1759 | { | |
1760 | int status; /* Exit status of child */ | |
b9faaae1 MS |
1761 | int pid, /* Process ID of child */ |
1762 | job_id; /* Job ID of child */ | |
ef416fc2 | 1763 | cupsd_job_t *job; /* Current job */ |
1764 | int i; /* Looping var */ | |
e00b005a | 1765 | char name[1024]; /* Process name */ |
ef416fc2 | 1766 | |
1767 | ||
1768 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "process_children()"); | |
1769 | ||
1770 | /* | |
1771 | * Reset the dead_children flag... | |
1772 | */ | |
1773 | ||
1774 | dead_children = 0; | |
1775 | ||
1776 | /* | |
1777 | * Collect the exit status of some children... | |
1778 | */ | |
1779 | ||
1780 | #ifdef HAVE_WAITPID | |
1781 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) | |
1782 | #elif defined(HAVE_WAIT3) | |
1783 | while ((pid = wait3(&status, WNOHANG, NULL)) > 0) | |
1784 | #else | |
1785 | if ((pid = wait(&status)) > 0) | |
1786 | #endif /* HAVE_WAITPID */ | |
1787 | { | |
ef416fc2 | 1788 | /* |
745129be | 1789 | * Collect the name of the process that finished... |
ef416fc2 | 1790 | */ |
1791 | ||
b9faaae1 | 1792 | cupsdFinishProcess(pid, name, sizeof(name), &job_id); |
e00b005a | 1793 | |
ef416fc2 | 1794 | /* |
1795 | * Delete certificates for CGI processes... | |
1796 | */ | |
1797 | ||
1798 | if (pid) | |
1799 | cupsdDeleteCert(pid); | |
1800 | ||
1801 | /* | |
b9faaae1 | 1802 | * Handle completed job filters... |
ef416fc2 | 1803 | */ |
1804 | ||
b9faaae1 MS |
1805 | if (job_id > 0 && (job = cupsdFindJob(job_id)) != NULL) |
1806 | { | |
1807 | for (i = 0; job->filters[i]; i ++) | |
1808 | if (job->filters[i] == pid) | |
1809 | break; | |
1810 | ||
1811 | if (job->filters[i] || job->backend == pid) | |
ef416fc2 | 1812 | { |
b9faaae1 MS |
1813 | /* |
1814 | * OK, this process has gone away; what's left? | |
1815 | */ | |
1816 | ||
1817 | if (job->filters[i]) | |
1818 | job->filters[i] = -pid; | |
1819 | else | |
1820 | job->backend = -pid; | |
ef416fc2 | 1821 | |
b9faaae1 | 1822 | if (status && status != SIGTERM && status != SIGKILL && |
5a6b583a | 1823 | status != SIGPIPE && job->status >= 0) |
ef416fc2 | 1824 | { |
1825 | /* | |
b9faaae1 MS |
1826 | * An error occurred; save the exit status so we know to stop |
1827 | * the printer or cancel the job when all of the filters finish... | |
1828 | * | |
1829 | * A negative status indicates that the backend failed and the | |
1830 | * printer needs to be stopped. | |
ef416fc2 | 1831 | */ |
1832 | ||
b9faaae1 MS |
1833 | if (job->filters[i]) |
1834 | job->status = status; /* Filter failed */ | |
ef416fc2 | 1835 | else |
b9faaae1 | 1836 | job->status = -status; /* Backend failed */ |
ef416fc2 | 1837 | |
f11a948a MS |
1838 | if (job->state_value == IPP_JOB_PROCESSING && |
1839 | job->status_level > CUPSD_LOG_ERROR) | |
ef416fc2 | 1840 | { |
f11a948a MS |
1841 | char message[1024]; /* New printer-state-message */ |
1842 | ||
1843 | ||
b9faaae1 | 1844 | job->status_level = CUPSD_LOG_ERROR; |
ef416fc2 | 1845 | |
f11a948a MS |
1846 | snprintf(message, sizeof(message), "%s failed", name); |
1847 | ||
e07d4801 MS |
1848 | if (job->printer) |
1849 | { | |
f11a948a MS |
1850 | strlcpy(job->printer->state_message, message, |
1851 | sizeof(job->printer->state_message)); | |
e07d4801 MS |
1852 | } |
1853 | ||
1854 | if (!job->attrs) | |
1855 | cupsdLoadJob(job); | |
e00b005a | 1856 | |
e07d4801 | 1857 | if (!job->printer_message && job->attrs) |
e00b005a | 1858 | { |
b9faaae1 MS |
1859 | if ((job->printer_message = |
1860 | ippFindAttribute(job->attrs, "job-printer-state-message", | |
1861 | IPP_TAG_TEXT)) == NULL) | |
1862 | job->printer_message = ippAddString(job->attrs, IPP_TAG_JOB, | |
1863 | IPP_TAG_TEXT, | |
1864 | "job-printer-state-message", | |
5a662dc0 | 1865 | NULL, NULL); |
e00b005a | 1866 | } |
b9faaae1 | 1867 | |
e07d4801 MS |
1868 | if (job->printer_message) |
1869 | cupsdSetString(&(job->printer_message->values[0].string.text), | |
f11a948a | 1870 | message); |
ef416fc2 | 1871 | } |
b9faaae1 | 1872 | } |
ef416fc2 | 1873 | |
b9faaae1 MS |
1874 | /* |
1875 | * If this is not the last file in a job, see if all of the | |
1876 | * filters are done, and if so move to the next file. | |
1877 | */ | |
ef416fc2 | 1878 | |
5a662dc0 | 1879 | if (job->current_file < job->num_files && job->printer) |
b9faaae1 MS |
1880 | { |
1881 | for (i = 0; job->filters[i] < 0; i ++); | |
ef416fc2 | 1882 | |
82f97232 MS |
1883 | if (!job->filters[i] && |
1884 | (!job->printer->pc || !job->printer->pc->single_file || | |
1885 | job->backend <= 0)) | |
b9faaae1 MS |
1886 | { |
1887 | /* | |
1888 | * Process the next file... | |
1889 | */ | |
ef416fc2 | 1890 | |
b9faaae1 | 1891 | cupsdContinueJob(job); |
ef416fc2 | 1892 | } |
ef416fc2 | 1893 | } |
5a662dc0 | 1894 | else if (job->state_value >= IPP_JOB_CANCELED) |
7a0cbd5e MS |
1895 | { |
1896 | /* | |
1897 | * Remove the job from the active list if there are no processes still | |
1898 | * running for it... | |
1899 | */ | |
1900 | ||
1901 | for (i = 0; job->filters[i] < 0; i++); | |
1902 | ||
1903 | if (!job->filters[i] && job->backend <= 0) | |
1904 | cupsArrayRemove(ActiveJobs, job); | |
1905 | } | |
ef416fc2 | 1906 | } |
b9faaae1 | 1907 | } |
3dfe78b3 MS |
1908 | |
1909 | /* | |
745129be MS |
1910 | * Show the exit status as needed, ignoring SIGTERM and SIGKILL errors |
1911 | * since they come when we kill/end a process... | |
3dfe78b3 MS |
1912 | */ |
1913 | ||
745129be MS |
1914 | if (status == SIGTERM || status == SIGKILL) |
1915 | { | |
1916 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1917 | "PID %d (%s) was terminated normally with signal %d.", | |
1918 | pid, name, status); | |
1919 | } | |
5a6b583a MS |
1920 | else if (status == SIGPIPE) |
1921 | { | |
1922 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1923 | "PID %d (%s) did not catch or ignore signal %d.", | |
1924 | pid, name, status); | |
1925 | } | |
745129be | 1926 | else if (status) |
3dfe78b3 MS |
1927 | { |
1928 | if (WIFEXITED(status)) | |
7a14d768 | 1929 | cupsdLogMessage(CUPSD_LOG_DEBUG, "PID %d (%s) stopped with status %d!", |
3dfe78b3 MS |
1930 | pid, name, WEXITSTATUS(status)); |
1931 | else | |
1932 | cupsdLogMessage(CUPSD_LOG_ERROR, "PID %d (%s) crashed on signal %d!", | |
1933 | pid, name, WTERMSIG(status)); | |
1934 | ||
1935 | if (LogLevel < CUPSD_LOG_DEBUG) | |
1936 | cupsdLogMessage(CUPSD_LOG_INFO, | |
1937 | "Hint: Try setting the LogLevel to \"debug\" to find " | |
1938 | "out more."); | |
1939 | } | |
1940 | else | |
1941 | cupsdLogMessage(CUPSD_LOG_DEBUG, "PID %d (%s) exited with no errors.", | |
1942 | pid, name); | |
ef416fc2 | 1943 | } |
dfd5680b MS |
1944 | |
1945 | /* | |
1946 | * If wait*() is interrupted by a signal, tell main() to call us again... | |
1947 | */ | |
1948 | ||
1949 | if (pid < 0 && errno == EINTR) | |
1950 | dead_children = 1; | |
ef416fc2 | 1951 | } |
1952 | ||
1953 | ||
ef416fc2 | 1954 | /* |
1955 | * 'select_timeout()' - Calculate the select timeout value. | |
1956 | * | |
1957 | */ | |
1958 | ||
1959 | static long /* O - Number of seconds */ | |
bd7854cb | 1960 | select_timeout(int fds) /* I - Number of descriptors returned */ |
ef416fc2 | 1961 | { |
ef416fc2 | 1962 | long timeout; /* Timeout for select */ |
1963 | time_t now; /* Current time */ | |
1964 | cupsd_client_t *con; /* Client information */ | |
1965 | cupsd_printer_t *p; /* Printer information */ | |
1966 | cupsd_job_t *job; /* Job information */ | |
1967 | cupsd_subscription_t *sub; /* Subscription information */ | |
1968 | const char *why; /* Debugging aid */ | |
1969 | ||
1970 | ||
1971 | /* | |
1972 | * Check to see if any of the clients have pending data to be | |
1973 | * processed; if so, the timeout should be 0... | |
1974 | */ | |
1975 | ||
bd7854cb | 1976 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
1977 | con; | |
1978 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 1979 | if (con->http.used > 0) |
1980 | return (0); | |
1981 | ||
1982 | /* | |
f7deaa1a | 1983 | * If select has been active in the last second (fds > 0) or we have |
ef416fc2 | 1984 | * many resources in use then don't bother trying to optimize the |
1985 | * timeout, just make it 1 second. | |
1986 | */ | |
1987 | ||
f7deaa1a | 1988 | if (fds > 0 || cupsArrayCount(Clients) > 50) |
ef416fc2 | 1989 | return (1); |
1990 | ||
1991 | /* | |
1992 | * Otherwise, check all of the possible events that we need to wake for... | |
1993 | */ | |
1994 | ||
1995 | now = time(NULL); | |
1996 | timeout = now + 86400; /* 86400 == 1 day */ | |
1997 | why = "do nothing"; | |
1998 | ||
e6013cfa MS |
1999 | #ifdef __APPLE__ |
2000 | /* | |
2001 | * When going to sleep, wake up to cancel jobs that don't complete in time. | |
2002 | */ | |
2003 | ||
2004 | if (SleepJobs > 0 && SleepJobs < timeout) | |
2005 | { | |
2006 | timeout = SleepJobs; | |
2007 | why = "cancel jobs before sleeping"; | |
2008 | } | |
2009 | #endif /* __APPLE__ */ | |
2010 | ||
76cd9e37 MS |
2011 | /* |
2012 | * Check whether we are accepting new connections... | |
2013 | */ | |
2014 | ||
2015 | if (ListeningPaused > 0 && cupsArrayCount(Clients) < MaxClients && | |
2016 | ListeningPaused < timeout) | |
2017 | { | |
2018 | if (ListeningPaused <= now) | |
2019 | timeout = now; | |
2020 | else | |
2021 | timeout = ListeningPaused; | |
2022 | ||
2023 | why = "resume listening"; | |
2024 | } | |
2025 | ||
ef416fc2 | 2026 | /* |
2027 | * Check the activity and close old clients... | |
2028 | */ | |
2029 | ||
bd7854cb | 2030 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
2031 | con; | |
2032 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 2033 | if ((con->http.activity + Timeout) < timeout) |
2034 | { | |
2035 | timeout = con->http.activity + Timeout; | |
2036 | why = "timeout a client connection"; | |
2037 | } | |
2038 | ||
2039 | /* | |
2040 | * Update the browse list as needed... | |
2041 | */ | |
2042 | ||
2043 | if (Browsing && BrowseLocalProtocols) | |
2044 | { | |
2045 | #ifdef HAVE_LIBSLP | |
2046 | if ((BrowseLocalProtocols & BROWSE_SLP) && (BrowseSLPRefresh < timeout)) | |
2047 | { | |
2048 | timeout = BrowseSLPRefresh; | |
2049 | why = "update SLP browsing"; | |
2050 | } | |
2051 | #endif /* HAVE_LIBSLP */ | |
2052 | ||
b423cd4c | 2053 | #ifdef HAVE_LDAP |
2054 | if ((BrowseLocalProtocols & BROWSE_LDAP) && (BrowseLDAPRefresh < timeout)) | |
2055 | { | |
2056 | timeout = BrowseLDAPRefresh; | |
2057 | why = "update LDAP browsing"; | |
2058 | } | |
2059 | #endif /* HAVE_LDAP */ | |
2060 | ||
f7deaa1a | 2061 | if ((BrowseLocalProtocols & BROWSE_CUPS) && NumBrowsers) |
ef416fc2 | 2062 | { |
2063 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); | |
2064 | p; | |
2065 | p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
2066 | { | |
2067 | if (p->type & CUPS_PRINTER_REMOTE) | |
2068 | { | |
2069 | if ((p->browse_time + BrowseTimeout) < timeout) | |
2070 | { | |
2071 | timeout = p->browse_time + BrowseTimeout; | |
2072 | why = "browse timeout a printer"; | |
2073 | } | |
2074 | } | |
f7deaa1a | 2075 | else if (p->shared && !(p->type & CUPS_PRINTER_IMPLICIT)) |
ef416fc2 | 2076 | { |
2077 | if (BrowseInterval && (p->browse_time + BrowseInterval) < timeout) | |
2078 | { | |
2079 | timeout = p->browse_time + BrowseInterval; | |
2080 | why = "send browse update"; | |
2081 | } | |
2082 | } | |
2083 | } | |
2084 | } | |
2085 | } | |
2086 | ||
3dfe78b3 | 2087 | /* |
bf3816c7 | 2088 | * Write out changes to configuration and state files... |
3dfe78b3 MS |
2089 | */ |
2090 | ||
2091 | if (DirtyCleanTime && timeout > DirtyCleanTime) | |
2092 | { | |
2093 | timeout = DirtyCleanTime; | |
2094 | why = "write dirty config/state files"; | |
2095 | } | |
2096 | ||
ef416fc2 | 2097 | /* |
2098 | * Check for any active jobs... | |
2099 | */ | |
2100 | ||
238c3832 MS |
2101 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); |
2102 | job; | |
2103 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
ef416fc2 | 2104 | { |
238c3832 MS |
2105 | if (job->kill_time && job->kill_time < timeout) |
2106 | { | |
2107 | timeout = job->kill_time; | |
2108 | why = "kill unresponsive jobs"; | |
2109 | } | |
2110 | ||
2111 | if (job->state_value == IPP_JOB_HELD && job->hold_until < timeout) | |
2112 | { | |
2113 | timeout = job->hold_until; | |
2114 | why = "release held jobs"; | |
2115 | } | |
2116 | else if (job->state_value == IPP_JOB_PENDING && timeout > (now + 10)) | |
2117 | { | |
2118 | timeout = now + 10; | |
2119 | why = "start pending jobs"; | |
2120 | break; | |
2121 | } | |
ef416fc2 | 2122 | } |
2123 | ||
2124 | #ifdef HAVE_MALLINFO | |
2125 | /* | |
2126 | * Log memory usage every minute... | |
2127 | */ | |
2128 | ||
2129 | if (LogLevel >= CUPSD_LOG_DEBUG && (mallinfo_time + 60) < timeout) | |
2130 | { | |
2131 | timeout = mallinfo_time + 60; | |
2132 | why = "display memory usage"; | |
2133 | } | |
2134 | #endif /* HAVE_MALLINFO */ | |
2135 | ||
ef416fc2 | 2136 | /* |
2137 | * Expire subscriptions as needed... | |
2138 | */ | |
2139 | ||
2140 | for (sub = (cupsd_subscription_t *)cupsArrayFirst(Subscriptions); | |
2141 | sub; | |
2142 | sub = (cupsd_subscription_t *)cupsArrayNext(Subscriptions)) | |
bd7854cb | 2143 | if (!sub->job && sub->expire && sub->expire < timeout) |
ef416fc2 | 2144 | { |
2145 | timeout = sub->expire; | |
2146 | why = "expire subscription"; | |
2147 | } | |
2148 | ||
2149 | /* | |
2150 | * Adjust from absolute to relative time. If p->browse_time above | |
2151 | * was 0 then we can end up with a negative value here, so check. | |
2152 | * We add 1 second to the timeout since events occur after the | |
2153 | * timeout expires, and limit the timeout to 86400 seconds (1 day) | |
2154 | * to avoid select() timeout limits present on some operating | |
2155 | * systems... | |
2156 | */ | |
2157 | ||
2158 | timeout = timeout - now + 1; | |
2159 | ||
2160 | if (timeout < 1) | |
2161 | timeout = 1; | |
2162 | else if (timeout > 86400) | |
2163 | timeout = 86400; | |
2164 | ||
2165 | /* | |
2166 | * Log and return the timeout value... | |
2167 | */ | |
2168 | ||
f7deaa1a | 2169 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout(%d): %ld seconds to %s", |
2170 | fds, timeout, why); | |
ef416fc2 | 2171 | |
2172 | return (timeout); | |
2173 | } | |
2174 | ||
2175 | ||
e6013cfa MS |
2176 | /* |
2177 | * 'sigchld_handler()' - Handle 'child' signals from old processes. | |
2178 | */ | |
2179 | ||
2180 | static void | |
2181 | sigchld_handler(int sig) /* I - Signal number */ | |
2182 | { | |
2183 | (void)sig; | |
2184 | ||
2185 | /* | |
2186 | * Flag that we have dead children... | |
2187 | */ | |
2188 | ||
2189 | dead_children = 1; | |
2190 | ||
2191 | /* | |
2192 | * Reset the signal handler as needed... | |
2193 | */ | |
2194 | ||
2195 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
2196 | signal(SIGCLD, sigchld_handler); | |
2197 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
2198 | } | |
2199 | ||
2200 | ||
2201 | /* | |
2202 | * 'sighup_handler()' - Handle 'hangup' signals to reconfigure the scheduler. | |
2203 | */ | |
2204 | ||
2205 | static void | |
2206 | sighup_handler(int sig) /* I - Signal number */ | |
2207 | { | |
2208 | (void)sig; | |
2209 | ||
2210 | NeedReload = RELOAD_ALL; | |
2211 | ReloadTime = time(NULL); | |
2212 | ||
2213 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
2214 | signal(SIGHUP, sighup_handler); | |
2215 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
2216 | } | |
2217 | ||
2218 | ||
2219 | /* | |
2220 | * 'sigterm_handler()' - Handle 'terminate' signals that stop the scheduler. | |
2221 | */ | |
2222 | ||
2223 | static void | |
2224 | sigterm_handler(int sig) /* I - Signal number */ | |
2225 | { | |
2226 | (void)sig; /* remove compiler warnings... */ | |
2227 | ||
2228 | /* | |
2229 | * Flag that we should stop and return... | |
2230 | */ | |
2231 | ||
2232 | stop_scheduler = 1; | |
2233 | } | |
2234 | ||
2235 | ||
ef416fc2 | 2236 | /* |
2237 | * 'usage()' - Show scheduler usage. | |
2238 | */ | |
2239 | ||
2240 | static void | |
a4d04587 | 2241 | usage(int status) /* O - Exit status */ |
ef416fc2 | 2242 | { |
0837b7e8 MS |
2243 | FILE *fp = status ? stderr : stdout; /* Output file */ |
2244 | ||
2245 | ||
2246 | _cupsLangPuts(fp, _("Usage: cupsd [options]")); | |
2247 | _cupsLangPuts(fp, _("Options:")); | |
84315f46 MS |
2248 | _cupsLangPuts(fp, _(" -c config-file Load alternate configuration " |
2249 | "file.")); | |
2250 | _cupsLangPuts(fp, _(" -f Run in the foreground.")); | |
2251 | _cupsLangPuts(fp, _(" -F Run in the foreground but " | |
2252 | "detach from console.")); | |
2253 | _cupsLangPuts(fp, _(" -h Show this usage message.")); | |
2254 | _cupsLangPuts(fp, _(" -l Run cupsd from launchd(8).")); | |
2255 | _cupsLangPuts(fp, _(" -t Test the configuration " | |
0837b7e8 | 2256 | "file.")); |
0837b7e8 | 2257 | |
a4d04587 | 2258 | exit(status); |
ef416fc2 | 2259 | } |
2260 | ||
2261 | ||
2262 | /* | |
b19ccc9e | 2263 | * End of "$Id: main.c 7925 2008-09-10 17:47:26Z mike $". |
ef416fc2 | 2264 | */ |