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