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Commit | Line | Data |
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ef416fc2 | 1 | /* |
f2d18633 | 2 | * "$Id$" |
ef416fc2 | 3 | * |
581dae2d | 4 | * Main loop for the CUPS scheduler. |
ef416fc2 | 5 | * |
a1797929 | 6 | * Copyright 2007-2015 by Apple Inc. |
581dae2d | 7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 8 | * |
581dae2d MS |
9 | * These coded instructions, statements, and computer programs are the |
10 | * property of Apple Inc. and are protected by Federal copyright | |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * "LICENSE" which should have been included with this file. If this | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 14 | */ |
15 | ||
16 | /* | |
17 | * Include necessary headers... | |
18 | */ | |
19 | ||
20 | #define _MAIN_C_ | |
21 | #include "cupsd.h" | |
22 | #include <sys/resource.h> | |
a1797929 MS |
23 | #ifdef HAVE_ASL_H |
24 | # include <asl.h> | |
25 | #elif defined(HAVE_SYSTEMD_SD_JOURNAL_H) | |
26 | # define SD_JOURNAL_SUPPRESS_LOCATION | |
27 | # include <systemd/sd-journal.h> | |
28 | #endif /* HAVE_ASL_H */ | |
ef416fc2 | 29 | #include <syslog.h> |
30 | #include <grp.h> | |
31 | ||
a4d04587 | 32 | #ifdef HAVE_LAUNCH_H |
33 | # include <launch.h> | |
34 | # include <libgen.h> | |
ba55dc12 | 35 | # define CUPS_KEEPALIVE CUPS_CACHEDIR "/org.cups.cupsd" |
f7deaa1a | 36 | /* Name of the launchd KeepAlive file */ |
02f3db8a MS |
37 | # ifdef HAVE_LAUNCH_ACTIVATE_SOCKET |
38 | /* Update when we have a public header we can include */ | |
39 | extern int launch_activate_socket(const char *name, int **fds, size_t *cnt); | |
40 | # endif /* HAVE_LAUNCH_ACTIVATE_SOCKET */ | |
a4d04587 | 41 | #endif /* HAVE_LAUNCH_H */ |
42 | ||
1720786e | 43 | #ifdef HAVE_SYSTEMD |
5950e7bd | 44 | # include <systemd/sd-daemon.h> |
1720786e MS |
45 | # define CUPS_KEEPALIVE CUPS_CACHEDIR "/org.cups.cupsd" |
46 | /* Name of the systemd path file */ | |
47 | #endif /* HAVE_SYSTEMD */ | |
48 | ||
ef416fc2 | 49 | #if defined(HAVE_MALLOC_H) && defined(HAVE_MALLINFO) |
50 | # include <malloc.h> | |
51 | #endif /* HAVE_MALLOC_H && HAVE_MALLINFO */ | |
3dd9c340 | 52 | |
fa73b229 | 53 | #ifdef HAVE_NOTIFY_H |
54 | # include <notify.h> | |
55 | #endif /* HAVE_NOTIFY_H */ | |
ef416fc2 | 56 | |
e7f455a5 MS |
57 | #ifdef HAVE_DBUS |
58 | # include <dbus/dbus.h> | |
59 | #endif /* HAVE_DBUS */ | |
60 | ||
3dd9c340 MS |
61 | #ifdef HAVE_SYS_PARAM_H |
62 | # include <sys/param.h> | |
63 | #endif /* HAVE_SYS_PARAM_H */ | |
64 | ||
ef416fc2 | 65 | |
66 | /* | |
67 | * Local functions... | |
68 | */ | |
69 | ||
411affcf | 70 | static void parent_handler(int sig); |
71 | static void process_children(void); | |
72 | static void sigchld_handler(int sig); | |
73 | static void sighup_handler(int sig); | |
74 | static void sigterm_handler(int sig); | |
75 | static long select_timeout(int fds); | |
1720786e MS |
76 | #if defined(HAVE_LAUNCHD) || defined(HAVE_SYSTEMD) |
77 | static void service_checkin(void); | |
78 | static void service_checkout(void); | |
79 | #endif /* HAVE_LAUNCHD || HAVE_SYSTEMD */ | |
85dda01c | 80 | static void usage(int status) __attribute__((noreturn)); |
ef416fc2 | 81 | |
82 | ||
83 | /* | |
84 | * Local globals... | |
85 | */ | |
86 | ||
411affcf | 87 | static int parent_signal = 0; |
88 | /* Set to signal number from child */ | |
89 | static int holdcount = 0; /* Number of times "hold" was called */ | |
ef416fc2 | 90 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
411affcf | 91 | static sigset_t holdmask; /* Old POSIX signal mask */ |
ef416fc2 | 92 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ |
411affcf | 93 | static int dead_children = 0; |
94 | /* Dead children? */ | |
95 | static int stop_scheduler = 0; | |
96 | /* Should the scheduler stop? */ | |
97 | ||
ef416fc2 | 98 | |
99 | /* | |
100 | * 'main()' - Main entry for the CUPS scheduler. | |
101 | */ | |
102 | ||
103 | int /* O - Exit status */ | |
bd7854cb | 104 | main(int argc, /* I - Number of command-line args */ |
ef416fc2 | 105 | char *argv[]) /* I - Command-line arguments */ |
106 | { | |
107 | int i; /* Looping var */ | |
108 | char *opt; /* Option character */ | |
108f7505 MS |
109 | int close_all = 1, /* Close all file descriptors? */ |
110 | disconnect = 1, /* Disconnect from controlling terminal? */ | |
111 | fg = 0, /* Run in foreground? */ | |
112 | run_as_child = 0; | |
113 | /* Running as child process? */ | |
bd7854cb | 114 | int fds; /* Number of ready descriptors */ |
ef416fc2 | 115 | cupsd_client_t *con; /* Current client */ |
116 | cupsd_job_t *job; /* Current job */ | |
117 | cupsd_listener_t *lis; /* Current listener */ | |
118 | time_t current_time, /* Current time */ | |
a4d04587 | 119 | activity, /* Client activity timer */ |
ef416fc2 | 120 | senddoc_time, /* Send-Document time */ |
411affcf | 121 | expire_time, /* Subscription expire time */ |
50fe7201 | 122 | report_time, /* Malloc/client/job report time */ |
5a662dc0 | 123 | event_time; /* Last event notification time */ |
f7deaa1a | 124 | long timeout; /* Timeout for cupsdDoSelect() */ |
ef416fc2 | 125 | struct rlimit limit; /* Runtime limit */ |
126 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
127 | struct sigaction action; /* Actions for POSIX signals */ | |
128 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
a41f09e2 | 129 | #ifdef __APPLE__ |
1deb86fd | 130 | int use_sysman = 1; /* Use system management functions? */ |
a4924f6c MS |
131 | #else |
132 | time_t netif_time = 0; /* Time since last network update */ | |
a41f09e2 | 133 | #endif /* __APPLE__ */ |
1720786e MS |
134 | #if defined(HAVE_LAUNCHD) || defined(HAVE_SYSTEMD) |
135 | int service_idle_exit; | |
a4d04587 | 136 | /* Idle exit on select timeout? */ |
1720786e | 137 | #endif /* HAVE_LAUNCHD || HAVE_SYSTEMD */ |
ef416fc2 | 138 | |
139 | ||
db1f069b MS |
140 | #ifdef HAVE_GETEUID |
141 | /* | |
142 | * Check for setuid invocation, which we do not support! | |
143 | */ | |
144 | ||
145 | if (getuid() != geteuid()) | |
146 | { | |
1deb86fd | 147 | fputs("cupsd: Cannot run as a setuid program.\n", stderr); |
db1f069b MS |
148 | return (1); |
149 | } | |
150 | #endif /* HAVE_GETEUID */ | |
151 | ||
ef416fc2 | 152 | /* |
153 | * Check for command-line arguments... | |
154 | */ | |
155 | ||
4400e98d | 156 | fg = 0; |
ef416fc2 | 157 | |
09a101d6 | 158 | #ifdef HAVE_LAUNCHD |
159 | if (getenv("CUPSD_LAUNCHD")) | |
160 | { | |
108f7505 MS |
161 | OnDemand = 1; |
162 | fg = 1; | |
163 | close_all = 0; | |
164 | disconnect = 0; | |
09a101d6 | 165 | } |
166 | #endif /* HAVE_LAUNCHD */ | |
167 | ||
ef416fc2 | 168 | for (i = 1; i < argc; i ++) |
169 | if (argv[i][0] == '-') | |
170 | for (opt = argv[i] + 1; *opt != '\0'; opt ++) | |
171 | switch (*opt) | |
172 | { | |
a41f09e2 MS |
173 | case 'C' : /* Run as child with config file */ |
174 | run_as_child = 1; | |
108f7505 MS |
175 | fg = 1; |
176 | close_all = 0; | |
a41f09e2 | 177 | |
ef416fc2 | 178 | case 'c' : /* Configuration file */ |
179 | i ++; | |
180 | if (i >= argc) | |
a4d04587 | 181 | { |
182 | _cupsLangPuts(stderr, _("cupsd: Expected config filename " | |
0837b7e8 | 183 | "after \"-c\" option.")); |
a4d04587 | 184 | usage(1); |
185 | } | |
ef416fc2 | 186 | |
187 | if (argv[i][0] == '/') | |
188 | { | |
189 | /* | |
190 | * Absolute directory... | |
191 | */ | |
192 | ||
193 | cupsdSetString(&ConfigurationFile, argv[i]); | |
194 | } | |
195 | else | |
196 | { | |
197 | /* | |
198 | * Relative directory... | |
199 | */ | |
200 | ||
09ec0018 | 201 | char *current; /* Current directory */ |
ef416fc2 | 202 | |
09ec0018 | 203 | /* |
204 | * Allocate a buffer for the current working directory to | |
205 | * reduce run-time stack usage; this approximates the | |
206 | * behavior of some implementations of getcwd() when they | |
207 | * are passed a NULL pointer. | |
208 | */ | |
209 | ||
91c84a35 MS |
210 | if ((current = malloc(1024)) == NULL) |
211 | { | |
212 | _cupsLangPuts(stderr, | |
0837b7e8 | 213 | _("cupsd: Unable to get current directory.")); |
91c84a35 MS |
214 | return (1); |
215 | } | |
216 | ||
217 | if (!getcwd(current, 1024)) | |
218 | { | |
219 | _cupsLangPuts(stderr, | |
0837b7e8 | 220 | _("cupsd: Unable to get current directory.")); |
91c84a35 MS |
221 | free(current); |
222 | return (1); | |
223 | } | |
09ec0018 | 224 | |
ef416fc2 | 225 | cupsdSetStringf(&ConfigurationFile, "%s/%s", current, argv[i]); |
09ec0018 | 226 | free(current); |
ef416fc2 | 227 | } |
228 | break; | |
229 | ||
230 | case 'f' : /* Run in foreground... */ | |
108f7505 MS |
231 | fg = 1; |
232 | disconnect = 0; | |
233 | close_all = 0; | |
ef416fc2 | 234 | break; |
235 | ||
bd7854cb | 236 | case 'F' : /* Run in foreground, but disconnect from terminal... */ |
108f7505 MS |
237 | fg = 1; |
238 | close_all = 0; | |
ef416fc2 | 239 | break; |
240 | ||
a4d04587 | 241 | case 'h' : /* Show usage/help */ |
242 | usage(0); | |
243 | break; | |
244 | ||
1720786e MS |
245 | case 'l' : /* Started by launchd/systemd... */ |
246 | #if defined(HAVE_LAUNCHD) || defined(HAVE_SYSTEMD) | |
108f7505 MS |
247 | OnDemand = 1; |
248 | fg = 1; | |
249 | close_all = 0; | |
250 | disconnect = 0; | |
a4d04587 | 251 | #else |
1720786e | 252 | _cupsLangPuts(stderr, _("cupsd: On-demand support not compiled " |
0837b7e8 | 253 | "in, running in normal mode.")); |
108f7505 MS |
254 | fg = 0; |
255 | disconnect = 1; | |
256 | close_all = 1; | |
1720786e | 257 | #endif /* HAVE_LAUNCHD || HAVE_SYSTEMD */ |
a4d04587 | 258 | break; |
259 | ||
a74454a7 | 260 | case 'p' : /* Stop immediately for profiling */ |
5a662dc0 MS |
261 | fputs("cupsd: -p (startup profiling) is for internal testing " |
262 | "use only!\n", stderr); | |
a74454a7 | 263 | stop_scheduler = 1; |
264 | fg = 1; | |
108f7505 MS |
265 | disconnect = 0; |
266 | close_all = 0; | |
a74454a7 | 267 | break; |
268 | ||
1340db2d | 269 | case 'P' : /* Disable security profiles */ |
8fe0183a MS |
270 | fputs("cupsd: -P (disable sandboxing) is for internal testing use only.\n", stderr); |
271 | UseSandboxing = 0; | |
1340db2d MS |
272 | break; |
273 | ||
c41769ff MS |
274 | case 's' : /* Set cups-files.conf location */ |
275 | i ++; | |
276 | if (i >= argc) | |
277 | { | |
278 | _cupsLangPuts(stderr, _("cupsd: Expected cups-files.conf " | |
279 | "filename after \"-s\" option.")); | |
280 | usage(1); | |
281 | } | |
282 | ||
283 | if (argv[i][0] != '/') | |
284 | { | |
285 | /* | |
286 | * Relative filename not allowed... | |
287 | */ | |
288 | ||
289 | _cupsLangPuts(stderr, _("cupsd: Relative cups-files.conf " | |
290 | "filename not allowed.")); | |
291 | usage(1); | |
292 | } | |
293 | ||
294 | cupsdSetString(&CupsFilesFile, argv[i]); | |
295 | break; | |
296 | ||
68b10830 MS |
297 | #ifdef __APPLE__ |
298 | case 'S' : /* Disable system management functions */ | |
5a662dc0 MS |
299 | fputs("cupsd: -S (disable system management) for internal " |
300 | "testing use only!\n", stderr); | |
68b10830 MS |
301 | use_sysman = 0; |
302 | break; | |
303 | #endif /* __APPLE__ */ | |
304 | ||
2e4ff8af MS |
305 | case 't' : /* Test the cupsd.conf file... */ |
306 | TestConfigFile = 1; | |
307 | fg = 1; | |
108f7505 MS |
308 | disconnect = 0; |
309 | close_all = 0; | |
2e4ff8af MS |
310 | break; |
311 | ||
ef416fc2 | 312 | default : /* Unknown option */ |
a4d04587 | 313 | _cupsLangPrintf(stderr, _("cupsd: Unknown option \"%c\" - " |
0837b7e8 | 314 | "aborting."), *opt); |
a4d04587 | 315 | usage(1); |
ef416fc2 | 316 | break; |
317 | } | |
318 | else | |
319 | { | |
0837b7e8 | 320 | _cupsLangPrintf(stderr, _("cupsd: Unknown argument \"%s\" - aborting."), |
a4d04587 | 321 | argv[i]); |
322 | usage(1); | |
ef416fc2 | 323 | } |
324 | ||
325 | if (!ConfigurationFile) | |
326 | cupsdSetString(&ConfigurationFile, CUPS_SERVERROOT "/cupsd.conf"); | |
327 | ||
cb7f98ee MS |
328 | if (!CupsFilesFile) |
329 | { | |
330 | char *filename, /* Copy of cupsd.conf filename */ | |
331 | *slash; /* Final slash in cupsd.conf filename */ | |
332 | size_t len; /* Size of buffer */ | |
333 | ||
334 | len = strlen(ConfigurationFile) + 15; | |
335 | if ((filename = malloc(len)) == NULL) | |
336 | { | |
337 | _cupsLangPrintf(stderr, | |
338 | _("cupsd: Unable to get path to " | |
339 | "cups-files.conf file.")); | |
340 | return (1); | |
341 | } | |
342 | ||
343 | strlcpy(filename, ConfigurationFile, len); | |
344 | if ((slash = strrchr(filename, '/')) == NULL) | |
345 | { | |
346 | _cupsLangPrintf(stderr, | |
347 | _("cupsd: Unable to get path to " | |
348 | "cups-files.conf file.")); | |
349 | return (1); | |
350 | } | |
351 | ||
7e86f2f6 | 352 | strlcpy(slash, "/cups-files.conf", len - (size_t)(slash - filename)); |
cb7f98ee MS |
353 | cupsdSetString(&CupsFilesFile, filename); |
354 | free(filename); | |
355 | } | |
356 | ||
108f7505 MS |
357 | if (disconnect) |
358 | { | |
359 | /* | |
360 | * Make sure we aren't tying up any filesystems... | |
361 | */ | |
362 | ||
363 | chdir("/"); | |
364 | ||
365 | /* | |
366 | * Disconnect from the controlling terminal... | |
367 | */ | |
368 | ||
369 | setsid(); | |
370 | } | |
371 | ||
372 | if (close_all) | |
373 | { | |
374 | /* | |
375 | * Close all open files... | |
376 | */ | |
377 | ||
378 | getrlimit(RLIMIT_NOFILE, &limit); | |
379 | ||
380 | for (i = 0; i < (int)limit.rlim_cur && i < 1024; i ++) | |
381 | close(i); | |
382 | ||
383 | /* | |
384 | * Redirect stdin/out/err to /dev/null... | |
385 | */ | |
386 | ||
387 | if ((i = open("/dev/null", O_RDONLY)) != 0) | |
388 | { | |
389 | dup2(i, 0); | |
390 | close(i); | |
391 | } | |
392 | ||
393 | if ((i = open("/dev/null", O_WRONLY)) != 1) | |
394 | { | |
395 | dup2(i, 1); | |
396 | close(i); | |
397 | } | |
398 | ||
399 | if ((i = open("/dev/null", O_WRONLY)) != 2) | |
400 | { | |
401 | dup2(i, 2); | |
402 | close(i); | |
403 | } | |
404 | } | |
a1797929 MS |
405 | else |
406 | LogStderr = cupsFileStderr(); | |
108f7505 | 407 | |
ef416fc2 | 408 | /* |
108f7505 | 409 | * Run in the background as needed... |
ef416fc2 | 410 | */ |
411 | ||
412 | if (!fg) | |
413 | { | |
414 | /* | |
415 | * Setup signal handlers for the parent... | |
416 | */ | |
417 | ||
418 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
419 | sigset(SIGUSR1, parent_handler); | |
420 | sigset(SIGCHLD, parent_handler); | |
421 | ||
422 | sigset(SIGHUP, SIG_IGN); | |
423 | #elif defined(HAVE_SIGACTION) | |
424 | memset(&action, 0, sizeof(action)); | |
425 | sigemptyset(&action.sa_mask); | |
426 | sigaddset(&action.sa_mask, SIGUSR1); | |
427 | action.sa_handler = parent_handler; | |
428 | sigaction(SIGUSR1, &action, NULL); | |
429 | sigaction(SIGCHLD, &action, NULL); | |
430 | ||
431 | sigemptyset(&action.sa_mask); | |
432 | action.sa_handler = SIG_IGN; | |
433 | sigaction(SIGHUP, &action, NULL); | |
434 | #else | |
435 | signal(SIGUSR1, parent_handler); | |
436 | signal(SIGCLD, parent_handler); | |
437 | ||
438 | signal(SIGHUP, SIG_IGN); | |
439 | #endif /* HAVE_SIGSET */ | |
440 | ||
441 | if (fork() > 0) | |
442 | { | |
443 | /* | |
444 | * OK, wait for the child to startup and send us SIGUSR1 or to crash | |
445 | * and the OS send us SIGCHLD... We also need to ignore SIGHUP which | |
446 | * might be sent by the init script to restart the scheduler... | |
447 | */ | |
448 | ||
449 | for (; parent_signal == 0;) | |
450 | sleep(1); | |
451 | ||
452 | if (parent_signal == SIGUSR1) | |
453 | return (0); | |
454 | ||
455 | if (wait(&i) < 0) | |
456 | { | |
457 | perror("cupsd"); | |
458 | return (1); | |
459 | } | |
460 | else if (WIFEXITED(i)) | |
461 | { | |
4d301e69 | 462 | fprintf(stderr, "cupsd: Child exited with status %d\n", |
bd7854cb | 463 | WEXITSTATUS(i)); |
ef416fc2 | 464 | return (2); |
465 | } | |
466 | else | |
467 | { | |
4d301e69 | 468 | fprintf(stderr, "cupsd: Child exited on signal %d\n", WTERMSIG(i)); |
ef416fc2 | 469 | return (3); |
470 | } | |
471 | } | |
a41f09e2 | 472 | |
3dd9c340 | 473 | #if defined(__OpenBSD__) && OpenBSD < 201211 |
68b10830 MS |
474 | /* |
475 | * Call _thread_sys_closefrom() so the child process doesn't reset the | |
476 | * parent's file descriptors to be blocking. This is a workaround for a | |
3dd9c340 | 477 | * limitation of userland libpthread on older versions of OpenBSD. |
68b10830 | 478 | */ |
ef55b745 | 479 | |
68b10830 | 480 | _thread_sys_closefrom(0); |
3dd9c340 | 481 | #endif /* __OpenBSD__ && OpenBSD < 201211 */ |
68b10830 | 482 | |
a41f09e2 | 483 | /* |
108f7505 MS |
484 | * Since many system libraries create fork-unsafe data on execution of a |
485 | * program, we need to re-execute the background cupsd with the "-C" and "-s" | |
486 | * options to avoid problems. Unfortunately, we also have to assume that | |
487 | * argv[0] contains the name of the cupsd executable - there is no portable | |
488 | * way to get the real pathname... | |
a41f09e2 MS |
489 | */ |
490 | ||
108f7505 | 491 | execlp(argv[0], argv[0], "-C", ConfigurationFile, "-s", CupsFilesFile, (char *)0); |
a41f09e2 | 492 | exit(errno); |
ef416fc2 | 493 | } |
494 | ||
ef416fc2 | 495 | /* |
496 | * Set the timezone info... | |
497 | */ | |
498 | ||
499 | tzset(); | |
500 | ||
501 | #ifdef LC_TIME | |
502 | setlocale(LC_TIME, ""); | |
503 | #endif /* LC_TIME */ | |
504 | ||
0cf0c416 MS |
505 | #ifdef HAVE_DBUS_THREADS_INIT |
506 | /* | |
507 | * Enable threading support for D-BUS... | |
508 | */ | |
509 | ||
e7f455a5 | 510 | dbus_threads_init_default(); |
0cf0c416 MS |
511 | #endif /* HAVE_DBUS_THREADS_INIT */ |
512 | ||
ef416fc2 | 513 | /* |
514 | * Set the maximum number of files... | |
515 | */ | |
516 | ||
517 | getrlimit(RLIMIT_NOFILE, &limit); | |
518 | ||
f7deaa1a | 519 | #if !defined(HAVE_POLL) && !defined(HAVE_EPOLL) && !defined(HAVE_KQUEUE) |
f7faf1f5 | 520 | if (limit.rlim_max > FD_SETSIZE) |
521 | MaxFDs = FD_SETSIZE; | |
ef416fc2 | 522 | else |
f7deaa1a | 523 | #endif /* !HAVE_POLL && !HAVE_EPOLL && !HAVE_KQUEUE */ |
524 | #ifdef RLIM_INFINITY | |
525 | if (limit.rlim_max == RLIM_INFINITY) | |
526 | MaxFDs = 16384; | |
527 | else | |
528 | #endif /* RLIM_INFINITY */ | |
ef416fc2 | 529 | MaxFDs = limit.rlim_max; |
530 | ||
7e86f2f6 | 531 | limit.rlim_cur = (rlim_t)MaxFDs; |
ef416fc2 | 532 | |
533 | setrlimit(RLIMIT_NOFILE, &limit); | |
534 | ||
f7deaa1a | 535 | cupsdStartSelect(); |
ef416fc2 | 536 | |
537 | /* | |
538 | * Read configuration... | |
539 | */ | |
540 | ||
541 | if (!cupsdReadConfiguration()) | |
ef416fc2 | 542 | return (1); |
2e4ff8af MS |
543 | else if (TestConfigFile) |
544 | { | |
cb7f98ee MS |
545 | printf("\"%s\" is OK.\n", CupsFilesFile); |
546 | printf("\"%s\" is OK.\n", ConfigurationFile); | |
2e4ff8af MS |
547 | return (0); |
548 | } | |
ef416fc2 | 549 | |
ba55dc12 MS |
550 | /* |
551 | * Clean out old temp files and printer cache data. | |
552 | */ | |
cc0d019f | 553 | |
ba55dc12 | 554 | if (!strncmp(TempDir, RequestRoot, strlen(RequestRoot))) |
321d8d57 | 555 | cupsdCleanFiles(TempDir, NULL); |
cc0d019f | 556 | |
321d8d57 | 557 | cupsdCleanFiles(CacheDir, "*.ipp"); |
cc0d019f | 558 | |
1720786e MS |
559 | #if defined(HAVE_LAUNCHD) || defined(HAVE_SYSTEMD) |
560 | if (OnDemand) | |
a4d04587 | 561 | { |
562 | /* | |
1720786e MS |
563 | * If we were started on demand by launchd or systemd get the listen sockets |
564 | * file descriptors... | |
f7deaa1a | 565 | */ |
a4d04587 | 566 | |
1720786e MS |
567 | service_checkin(); |
568 | service_checkout(); | |
a4d04587 | 569 | } |
1720786e | 570 | #endif /* HAVE_LAUNCHD || HAVE_SYSTEMD */ |
a4d04587 | 571 | |
572 | /* | |
573 | * Startup the server... | |
574 | */ | |
575 | ||
6d2f911b MS |
576 | httpInitialize(); |
577 | ||
a4d04587 | 578 | cupsdStartServer(); |
579 | ||
ef416fc2 | 580 | /* |
581 | * Catch hangup and child signals and ignore broken pipes... | |
582 | */ | |
583 | ||
584 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
e1d6a774 | 585 | sigset(SIGCHLD, sigchld_handler); |
4744bd90 | 586 | sigset(SIGHUP, sighup_handler); |
ef416fc2 | 587 | sigset(SIGPIPE, SIG_IGN); |
588 | sigset(SIGTERM, sigterm_handler); | |
589 | #elif defined(HAVE_SIGACTION) | |
590 | memset(&action, 0, sizeof(action)); | |
591 | ||
e1d6a774 | 592 | sigemptyset(&action.sa_mask); |
593 | sigaddset(&action.sa_mask, SIGTERM); | |
594 | sigaddset(&action.sa_mask, SIGCHLD); | |
595 | action.sa_handler = sigchld_handler; | |
596 | sigaction(SIGCHLD, &action, NULL); | |
597 | ||
ef416fc2 | 598 | sigemptyset(&action.sa_mask); |
599 | sigaddset(&action.sa_mask, SIGHUP); | |
4744bd90 | 600 | action.sa_handler = sighup_handler; |
ef416fc2 | 601 | sigaction(SIGHUP, &action, NULL); |
602 | ||
603 | sigemptyset(&action.sa_mask); | |
604 | action.sa_handler = SIG_IGN; | |
605 | sigaction(SIGPIPE, &action, NULL); | |
606 | ||
607 | sigemptyset(&action.sa_mask); | |
608 | sigaddset(&action.sa_mask, SIGTERM); | |
609 | sigaddset(&action.sa_mask, SIGCHLD); | |
610 | action.sa_handler = sigterm_handler; | |
611 | sigaction(SIGTERM, &action, NULL); | |
612 | #else | |
e1d6a774 | 613 | signal(SIGCLD, sigchld_handler); /* No, SIGCLD isn't a typo... */ |
4744bd90 | 614 | signal(SIGHUP, sighup_handler); |
ef416fc2 | 615 | signal(SIGPIPE, SIG_IGN); |
616 | signal(SIGTERM, sigterm_handler); | |
617 | #endif /* HAVE_SIGSET */ | |
618 | ||
ef416fc2 | 619 | /* |
620 | * Initialize authentication certificates... | |
621 | */ | |
622 | ||
623 | cupsdInitCerts(); | |
624 | ||
625 | /* | |
626 | * If we are running in the background, signal the parent process that | |
627 | * we are up and running... | |
628 | */ | |
629 | ||
a41f09e2 | 630 | if (!fg || run_as_child) |
ef416fc2 | 631 | { |
632 | /* | |
633 | * Send a signal to the parent process, but only if the parent is | |
634 | * not PID 1 (init). This avoids accidentally shutting down the | |
635 | * system on OpenBSD if you CTRL-C the server before it is up... | |
636 | */ | |
637 | ||
638 | i = getppid(); /* Save parent PID to avoid race condition */ | |
639 | ||
640 | if (i != 1) | |
641 | kill(i, SIGUSR1); | |
642 | } | |
643 | ||
e1d6a774 | 644 | #ifdef __APPLE__ |
09ec0018 | 645 | /* |
646 | * Start power management framework... | |
647 | */ | |
648 | ||
1340db2d MS |
649 | if (use_sysman) |
650 | cupsdStartSystemMonitor(); | |
e1d6a774 | 651 | #endif /* __APPLE__ */ |
ef416fc2 | 652 | |
49d87452 MS |
653 | /* |
654 | * Send server-started event... | |
655 | */ | |
656 | ||
1720786e MS |
657 | #if defined(HAVE_LAUNCHD) || defined(HAVE_SYSTEMD) |
658 | if (OnDemand) | |
659 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, "Scheduler started on demand."); | |
49d87452 | 660 | else |
1720786e | 661 | #endif /* HAVE_LAUNCHD || HAVE_SYSTEMD */ |
49d87452 | 662 | if (fg) |
1720786e | 663 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, "Scheduler started in foreground."); |
49d87452 | 664 | else |
1720786e | 665 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, "Scheduler started in background."); |
49d87452 | 666 | |
ef416fc2 | 667 | /* |
668 | * Start any pending print jobs... | |
669 | */ | |
670 | ||
671 | cupsdCheckJobs(); | |
672 | ||
673 | /* | |
674 | * Loop forever... | |
675 | */ | |
676 | ||
50fe7201 | 677 | current_time = time(NULL); |
50fe7201 MS |
678 | event_time = current_time; |
679 | expire_time = current_time; | |
ef416fc2 | 680 | fds = 1; |
5bd77a73 | 681 | report_time = 0; |
50fe7201 | 682 | senddoc_time = current_time; |
ef416fc2 | 683 | |
684 | while (!stop_scheduler) | |
685 | { | |
ef416fc2 | 686 | /* |
687 | * Check if there are dead children to handle... | |
688 | */ | |
689 | ||
690 | if (dead_children) | |
691 | process_children(); | |
692 | ||
693 | /* | |
694 | * Check if we need to load the server configuration file... | |
695 | */ | |
696 | ||
697 | if (NeedReload) | |
698 | { | |
699 | /* | |
700 | * Close any idle clients... | |
701 | */ | |
702 | ||
bd7854cb | 703 | if (cupsArrayCount(Clients) > 0) |
ef416fc2 | 704 | { |
bd7854cb | 705 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
706 | con; | |
707 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
996acce8 | 708 | if (httpGetState(con->http) == HTTP_WAITING) |
ef416fc2 | 709 | cupsdCloseClient(con); |
ef416fc2 | 710 | else |
996acce8 | 711 | con->http->keep_alive = HTTP_KEEPALIVE_OFF; |
ef416fc2 | 712 | |
713 | cupsdPauseListening(); | |
714 | } | |
715 | ||
ef416fc2 | 716 | /* |
717 | * Restart if all clients are closed and all jobs finished, or | |
718 | * if the reload timeout has elapsed... | |
719 | */ | |
720 | ||
bd7854cb | 721 | if ((cupsArrayCount(Clients) == 0 && |
238c3832 | 722 | (cupsArrayCount(PrintingJobs) == 0 || NeedReload != RELOAD_ALL)) || |
ef416fc2 | 723 | (time(NULL) - ReloadTime) >= ReloadTimeout) |
724 | { | |
a4d04587 | 725 | /* |
726 | * Shutdown the server... | |
727 | */ | |
728 | ||
7cf5915e MS |
729 | DoingShutdown = 1; |
730 | ||
a4d04587 | 731 | cupsdStopServer(); |
732 | ||
733 | /* | |
734 | * Read configuration... | |
735 | */ | |
736 | ||
ef416fc2 | 737 | if (!cupsdReadConfiguration()) |
738 | { | |
a1797929 MS |
739 | #ifdef HAVE_ASL_H |
740 | asl_object_t m; /* Log message */ | |
741 | ||
742 | m = asl_new(ASL_TYPE_MSG); | |
743 | asl_set(m, ASL_KEY_FACILITY, "org.cups.cupsd"); | |
744 | asl_log(NULL, m, ASL_LEVEL_ERR, "Unable to read configuration file \"%s\" - exiting.", ConfigurationFile); | |
745 | asl_release(m); | |
746 | #elif defined(HAVE_SYSTEMD_SD_JOURNAL_H) | |
747 | sd_journal_print(LOG_ERR, "Unable to read configuration file \"%s\" - exiting.", ConfigurationFile); | |
748 | #else | |
749 | syslog(LOG_LPR, "Unable to read configuration file \'%s\' - exiting.", ConfigurationFile); | |
750 | #endif /* HAVE_ASL_H */ | |
751 | ||
ef416fc2 | 752 | break; |
753 | } | |
a4d04587 | 754 | |
a4d04587 | 755 | /* |
756 | * Startup the server... | |
757 | */ | |
758 | ||
7cf5915e MS |
759 | DoingShutdown = 0; |
760 | ||
a4d04587 | 761 | cupsdStartServer(); |
49d87452 MS |
762 | |
763 | /* | |
764 | * Send a server-restarted event... | |
765 | */ | |
766 | ||
767 | cupsdAddEvent(CUPSD_EVENT_SERVER_RESTARTED, NULL, NULL, | |
768 | "Scheduler restarted."); | |
ef416fc2 | 769 | } |
770 | } | |
771 | ||
772 | /* | |
f7deaa1a | 773 | * Check for available input or ready output. If cupsdDoSelect() |
774 | * returns 0 or -1, something bad happened and we should exit | |
775 | * immediately. | |
ef416fc2 | 776 | * |
777 | * Note that we at least have one listening socket open at all | |
778 | * times. | |
779 | */ | |
780 | ||
50fe7201 MS |
781 | if ((timeout = select_timeout(fds)) > 1 && LastEvent) |
782 | timeout = 1; | |
ef416fc2 | 783 | |
1720786e | 784 | #if defined(HAVE_LAUNCHD) || defined(HAVE_SYSTEMD) |
a4d04587 | 785 | /* |
786 | * If no other work is scheduled and we're being controlled by | |
411affcf | 787 | * launchd then timeout after 'LaunchdTimeout' seconds of |
a4d04587 | 788 | * inactivity... |
789 | */ | |
790 | ||
1720786e | 791 | if (timeout == 86400 && OnDemand && IdleExitTimeout && |
bc44d920 | 792 | !cupsArrayCount(ActiveJobs) && |
0627e869 MS |
793 | # ifdef HAVE_SYSTEMD |
794 | !WebInterface && | |
795 | # endif /* HAVE_SYSTEMD */ | |
a2326b5b | 796 | (!Browsing || !BrowseLocalProtocols || !cupsArrayCount(Printers))) |
a4d04587 | 797 | { |
1720786e MS |
798 | timeout = IdleExitTimeout; |
799 | service_idle_exit = 1; | |
a4d04587 | 800 | } |
801 | else | |
1720786e MS |
802 | service_idle_exit = 0; |
803 | #endif /* HAVE_LAUNCHD || HAVE_SYSTEMD */ | |
a4d04587 | 804 | |
f7deaa1a | 805 | if ((fds = cupsdDoSelect(timeout)) < 0) |
ef416fc2 | 806 | { |
ef416fc2 | 807 | /* |
808 | * Got an error from select! | |
809 | */ | |
810 | ||
37e7e6e0 | 811 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
f7deaa1a | 812 | cupsd_printer_t *p; /* Current printer */ |
37e7e6e0 | 813 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
f7deaa1a | 814 | |
815 | ||
816 | if (errno == EINTR) /* Just interrupted by a signal */ | |
ef416fc2 | 817 | continue; |
818 | ||
819 | /* | |
820 | * Log all sorts of debug info to help track down the problem. | |
821 | */ | |
822 | ||
f7deaa1a | 823 | cupsdLogMessage(CUPSD_LOG_EMERG, "cupsdDoSelect() failed - %s!", |
ef416fc2 | 824 | strerror(errno)); |
825 | ||
bd7854cb | 826 | for (i = 0, con = (cupsd_client_t *)cupsArrayFirst(Clients); |
827 | con; | |
828 | i ++, con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 829 | cupsdLogMessage(CUPSD_LOG_EMERG, |
830 | "Clients[%d] = %d, file = %d, state = %d", | |
996acce8 | 831 | i, con->number, con->file, httpGetState(con->http)); |
ef416fc2 | 832 | |
bd7854cb | 833 | for (i = 0, lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); |
834 | lis; | |
835 | i ++, lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
ef416fc2 | 836 | cupsdLogMessage(CUPSD_LOG_EMERG, "Listeners[%d] = %d", i, lis->fd); |
837 | ||
923edb68 | 838 | cupsdLogMessage(CUPSD_LOG_EMERG, "CGIPipes[0] = %d", CGIPipes[0]); |
839 | ||
09ec0018 | 840 | #ifdef __APPLE__ |
841 | cupsdLogMessage(CUPSD_LOG_EMERG, "SysEventPipes[0] = %d", | |
842 | SysEventPipes[0]); | |
843 | #endif /* __APPLE__ */ | |
844 | ||
ef416fc2 | 845 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); |
846 | job; | |
847 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
848 | cupsdLogMessage(CUPSD_LOG_EMERG, "Jobs[%d] = %d < [%d %d] > [%d %d]", | |
849 | job->id, | |
850 | job->status_buffer ? job->status_buffer->fd : -1, | |
851 | job->print_pipes[0], job->print_pipes[1], | |
852 | job->back_pipes[0], job->back_pipes[1]); | |
f7deaa1a | 853 | |
37e7e6e0 | 854 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
f7deaa1a | 855 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); |
856 | p; | |
857 | p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
7a14d768 MS |
858 | cupsdLogMessage(CUPSD_LOG_EMERG, "printer[%s] reg_name=\"%s\"", p->name, |
859 | p->reg_name ? p->reg_name : "(null)"); | |
37e7e6e0 | 860 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
f7deaa1a | 861 | |
ef416fc2 | 862 | break; |
863 | } | |
864 | ||
865 | current_time = time(NULL); | |
866 | ||
3dfe78b3 MS |
867 | /* |
868 | * Write dirty config/state files... | |
869 | */ | |
870 | ||
871 | if (DirtyCleanTime && current_time >= DirtyCleanTime) | |
3dfe78b3 | 872 | cupsdCleanDirty(); |
3dfe78b3 | 873 | |
e6013cfa MS |
874 | #ifdef __APPLE__ |
875 | /* | |
876 | * If we are going to sleep and still have pending jobs, stop them after | |
877 | * a period of time... | |
878 | */ | |
879 | ||
880 | if (SleepJobs > 0 && current_time >= SleepJobs && | |
881 | cupsArrayCount(PrintingJobs) > 0) | |
882 | { | |
883 | SleepJobs = 0; | |
e60ec91f | 884 | cupsdStopAllJobs(CUPSD_JOB_DEFAULT, 5); |
e6013cfa MS |
885 | } |
886 | #endif /* __APPLE__ */ | |
887 | ||
a4924f6c MS |
888 | #ifndef __APPLE__ |
889 | /* | |
890 | * Update the network interfaces once a minute... | |
891 | */ | |
892 | ||
893 | if ((current_time - netif_time) >= 60) | |
894 | { | |
895 | netif_time = current_time; | |
896 | NetIFUpdate = 1; | |
897 | } | |
898 | #endif /* !__APPLE__ */ | |
899 | ||
1720786e | 900 | #if defined(HAVE_LAUNCHD) || defined(HAVE_SYSTEMD) |
a4d04587 | 901 | /* |
411affcf | 902 | * If no other work was scheduled and we're being controlled by launchd |
a4d04587 | 903 | * then timeout after 'LaunchdTimeout' seconds of inactivity... |
904 | */ | |
905 | ||
1720786e | 906 | if (!fds && service_idle_exit) |
a4d04587 | 907 | { |
908 | cupsdLogMessage(CUPSD_LOG_INFO, | |
909 | "Printer sharing is off and there are no jobs pending, " | |
910 | "will restart on demand."); | |
911 | stop_scheduler = 1; | |
912 | break; | |
913 | } | |
1720786e | 914 | #endif /* HAVE_LAUNCHD || HAVE_SYSTEMD */ |
a4d04587 | 915 | |
76cd9e37 MS |
916 | /* |
917 | * Resume listening for new connections as needed... | |
918 | */ | |
919 | ||
920 | if (ListeningPaused && ListeningPaused <= current_time && | |
921 | cupsArrayCount(Clients) < MaxClients) | |
922 | cupsdResumeListening(); | |
923 | ||
ef416fc2 | 924 | /* |
bd7854cb | 925 | * Expire subscriptions and unload completed jobs as needed... |
ef416fc2 | 926 | */ |
927 | ||
bd7854cb | 928 | if (current_time > expire_time) |
ef416fc2 | 929 | { |
bd7854cb | 930 | if (cupsArrayCount(Subscriptions) > 0) |
931 | cupsdExpireSubscriptions(NULL, NULL); | |
932 | ||
933 | cupsdUnloadCompletedJobs(); | |
ef416fc2 | 934 | |
935 | expire_time = current_time; | |
936 | } | |
937 | ||
07ed0e9a | 938 | #ifndef HAVE_AUTHORIZATION_H |
ef416fc2 | 939 | /* |
f7deaa1a | 940 | * Update the root certificate once every 5 minutes if we have client |
941 | * connections... | |
ef416fc2 | 942 | */ |
943 | ||
f7deaa1a | 944 | if ((current_time - RootCertTime) >= RootCertDuration && RootCertDuration && |
945 | !RunUser && cupsArrayCount(Clients)) | |
946 | { | |
947 | /* | |
948 | * Update the root certificate... | |
949 | */ | |
950 | ||
951 | cupsdDeleteCert(0); | |
0fa6c7fa | 952 | cupsdAddCert(0, "root", cupsdDefaultAuthType()); |
f7deaa1a | 953 | } |
07ed0e9a | 954 | #endif /* !HAVE_AUTHORIZATION_H */ |
ef416fc2 | 955 | |
956 | /* | |
957 | * Check for new data on the client sockets... | |
958 | */ | |
959 | ||
bd7854cb | 960 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
961 | con; | |
962 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 963 | { |
964 | /* | |
f7deaa1a | 965 | * Process pending data in the input buffer... |
ef416fc2 | 966 | */ |
967 | ||
1720786e | 968 | if (httpGetReady(con->http)) |
ef416fc2 | 969 | { |
f7deaa1a | 970 | cupsdReadClient(con); |
971 | continue; | |
ef416fc2 | 972 | } |
973 | ||
974 | /* | |
975 | * Check the activity and close old clients... | |
976 | */ | |
977 | ||
978 | activity = current_time - Timeout; | |
1720786e | 979 | if (httpGetActivity(con->http) < activity && !con->pipe_pid) |
ef416fc2 | 980 | { |
1720786e | 981 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Closing client %d after %d seconds of inactivity.", con->number, Timeout); |
ef416fc2 | 982 | |
983 | cupsdCloseClient(con); | |
ef416fc2 | 984 | continue; |
985 | } | |
986 | } | |
987 | ||
988 | /* | |
989 | * Update any pending multi-file documents... | |
990 | */ | |
991 | ||
992 | if ((current_time - senddoc_time) >= 10) | |
993 | { | |
994 | cupsdCheckJobs(); | |
995 | senddoc_time = current_time; | |
996 | } | |
997 | ||
82cc1f9a MS |
998 | /* |
999 | * Clean job history... | |
1000 | */ | |
1001 | ||
1002 | if (JobHistoryUpdate && current_time >= JobHistoryUpdate) | |
1003 | cupsdCleanJobs(); | |
1004 | ||
ef416fc2 | 1005 | /* |
5bd77a73 | 1006 | * Log statistics at most once a minute when in debug mode... |
ef416fc2 | 1007 | */ |
1008 | ||
5bd77a73 | 1009 | if ((current_time - report_time) >= 60 && LogLevel >= CUPSD_LOG_DEBUG) |
ef416fc2 | 1010 | { |
5bd77a73 MS |
1011 | size_t string_count, /* String count */ |
1012 | alloc_bytes, /* Allocated string bytes */ | |
1013 | total_bytes; /* Total string bytes */ | |
4400e98d | 1014 | #ifdef HAVE_MALLINFO |
5bd77a73 | 1015 | struct mallinfo mem; /* Malloc information */ |
ef416fc2 | 1016 | |
1017 | ||
1018 | mem = mallinfo(); | |
5bd77a73 MS |
1019 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-arena=%lu", mem.arena); |
1020 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-used=%lu", | |
1021 | mem.usmblks + mem.uordblks); | |
1022 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-free=%lu", | |
ef416fc2 | 1023 | mem.fsmblks + mem.fordblks); |
4400e98d | 1024 | #endif /* HAVE_MALLINFO */ |
1025 | ||
5bd77a73 MS |
1026 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: clients=%d", |
1027 | cupsArrayCount(Clients)); | |
1028 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: jobs=%d", | |
1029 | cupsArrayCount(Jobs)); | |
1030 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: jobs-active=%d", | |
1031 | cupsArrayCount(ActiveJobs)); | |
1032 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: printers=%d", | |
1033 | cupsArrayCount(Printers)); | |
5bd77a73 | 1034 | |
757d2cad | 1035 | string_count = _cupsStrStatistics(&alloc_bytes, &total_bytes); |
5bd77a73 MS |
1036 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
1037 | "Report: stringpool-string-count=" CUPS_LLFMT, | |
1038 | CUPS_LLCAST string_count); | |
1039 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1040 | "Report: stringpool-alloc-bytes=" CUPS_LLFMT, | |
1041 | CUPS_LLCAST alloc_bytes); | |
1042 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1043 | "Report: stringpool-total-bytes=" CUPS_LLFMT, | |
4400e98d | 1044 | CUPS_LLCAST total_bytes); |
1045 | ||
5bd77a73 | 1046 | report_time = current_time; |
ef416fc2 | 1047 | } |
ef416fc2 | 1048 | |
fa73b229 | 1049 | /* |
1050 | * Handle OS-specific event notification for any events that have | |
1051 | * accumulated. Don't send these more than once a second... | |
1052 | */ | |
1053 | ||
50fe7201 | 1054 | if (LastEvent && (current_time - event_time) >= 1) |
fa73b229 | 1055 | { |
1056 | #ifdef HAVE_NOTIFY_POST | |
a41f09e2 MS |
1057 | if (LastEvent & (CUPSD_EVENT_PRINTER_ADDED | |
1058 | CUPSD_EVENT_PRINTER_DELETED | | |
1059 | CUPSD_EVENT_PRINTER_MODIFIED)) | |
fa73b229 | 1060 | { |
e00b005a | 1061 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1062 | "notify_post(\"com.apple.printerListChange\")"); |
1063 | notify_post("com.apple.printerListChange"); | |
1064 | } | |
1065 | ||
1066 | if (LastEvent & CUPSD_EVENT_PRINTER_STATE_CHANGED) | |
1067 | { | |
e00b005a | 1068 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1069 | "notify_post(\"com.apple.printerHistoryChange\")"); |
1070 | notify_post("com.apple.printerHistoryChange"); | |
1071 | } | |
1072 | ||
1073 | if (LastEvent & (CUPSD_EVENT_JOB_STATE_CHANGED | | |
1074 | CUPSD_EVENT_JOB_CONFIG_CHANGED | | |
1075 | CUPSD_EVENT_JOB_PROGRESS)) | |
1076 | { | |
e00b005a | 1077 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1078 | "notify_post(\"com.apple.jobChange\")"); |
1079 | notify_post("com.apple.jobChange"); | |
1080 | } | |
1081 | #endif /* HAVE_NOTIFY_POST */ | |
1082 | ||
1083 | /* | |
e53920b9 | 1084 | * Reset the accumulated events... |
fa73b229 | 1085 | */ |
1086 | ||
50fe7201 MS |
1087 | LastEvent = CUPSD_EVENT_NONE; |
1088 | event_time = current_time; | |
fa73b229 | 1089 | } |
ef416fc2 | 1090 | } |
1091 | ||
1092 | /* | |
1093 | * Log a message based on what happened... | |
1094 | */ | |
1095 | ||
1096 | if (stop_scheduler) | |
49d87452 | 1097 | { |
ef416fc2 | 1098 | cupsdLogMessage(CUPSD_LOG_INFO, "Scheduler shutting down normally."); |
49d87452 MS |
1099 | cupsdAddEvent(CUPSD_EVENT_SERVER_STOPPED, NULL, NULL, |
1100 | "Scheduler shutting down normally."); | |
1101 | } | |
ef416fc2 | 1102 | else |
49d87452 | 1103 | { |
ef416fc2 | 1104 | cupsdLogMessage(CUPSD_LOG_ERROR, |
1105 | "Scheduler shutting down due to program error."); | |
49d87452 MS |
1106 | cupsdAddEvent(CUPSD_EVENT_SERVER_STOPPED, NULL, NULL, |
1107 | "Scheduler shutting down due to program error."); | |
1108 | } | |
ef416fc2 | 1109 | |
1110 | /* | |
7ff4fea9 | 1111 | * Close all network clients... |
ef416fc2 | 1112 | */ |
1113 | ||
7cf5915e MS |
1114 | DoingShutdown = 1; |
1115 | ||
ef416fc2 | 1116 | cupsdStopServer(); |
1117 | ||
1720786e | 1118 | #if defined(HAVE_LAUNCHD) || defined(HAVE_SYSTEMD) |
7ff4fea9 | 1119 | /* |
1720786e | 1120 | * Update the keep-alive file as needed... |
7ff4fea9 MS |
1121 | */ |
1122 | ||
1720786e MS |
1123 | if (OnDemand) |
1124 | service_checkout(); | |
1125 | #endif /* HAVE_LAUNCHD || HAVE_SYSTEMD */ | |
7ff4fea9 MS |
1126 | |
1127 | /* | |
1128 | * Stop all jobs... | |
1129 | */ | |
1130 | ||
bd7854cb | 1131 | cupsdFreeAllJobs(); |
ef416fc2 | 1132 | |
e1d6a774 | 1133 | #ifdef __APPLE__ |
7ff4fea9 MS |
1134 | /* |
1135 | * Stop monitoring system event monitoring... | |
1136 | */ | |
1137 | ||
1340db2d MS |
1138 | if (use_sysman) |
1139 | cupsdStopSystemMonitor(); | |
e1d6a774 | 1140 | #endif /* __APPLE__ */ |
09ec0018 | 1141 | |
f7deaa1a | 1142 | cupsdStopSelect(); |
ef416fc2 | 1143 | |
1144 | return (!stop_scheduler); | |
1145 | } | |
1146 | ||
1147 | ||
10d09e33 MS |
1148 | /* |
1149 | * 'cupsdAddString()' - Copy and add a string to an array. | |
1150 | */ | |
1151 | ||
1152 | int /* O - 1 on success, 0 on failure */ | |
1153 | cupsdAddString(cups_array_t **a, /* IO - String array */ | |
1154 | const char *s) /* I - String to copy and add */ | |
1155 | { | |
1156 | if (!*a) | |
1157 | *a = cupsArrayNew3((cups_array_func_t)strcmp, NULL, | |
1158 | (cups_ahash_func_t)NULL, 0, | |
5e6c3df7 MS |
1159 | (cups_acopy_func_t)strdup, |
1160 | (cups_afree_func_t)free); | |
10d09e33 MS |
1161 | |
1162 | return (cupsArrayAdd(*a, (char *)s)); | |
1163 | } | |
1164 | ||
1165 | ||
d7871c8c MS |
1166 | /* |
1167 | * 'cupsdCheckProcess()' - Tell the main loop to check for dead children. | |
1168 | */ | |
1169 | ||
1170 | void | |
1171 | cupsdCheckProcess(void) | |
1172 | { | |
1173 | /* | |
1174 | * Flag that we have dead children... | |
1175 | */ | |
1176 | ||
1177 | dead_children = 1; | |
1178 | } | |
1179 | ||
1180 | ||
10d09e33 MS |
1181 | /* |
1182 | * 'cupsdClearString()' - Clear a string. | |
1183 | */ | |
1184 | ||
1185 | void | |
1186 | cupsdClearString(char **s) /* O - String value */ | |
1187 | { | |
1188 | if (s && *s) | |
1189 | { | |
5e6c3df7 | 1190 | free(*s); |
10d09e33 MS |
1191 | *s = NULL; |
1192 | } | |
1193 | } | |
1194 | ||
1195 | ||
10d09e33 MS |
1196 | /* |
1197 | * 'cupsdFreeStrings()' - Free an array of strings. | |
1198 | */ | |
1199 | ||
1200 | void | |
1201 | cupsdFreeStrings(cups_array_t **a) /* IO - String array */ | |
1202 | { | |
1203 | if (*a) | |
1204 | { | |
1205 | cupsArrayDelete(*a); | |
1206 | *a = NULL; | |
1207 | } | |
1208 | } | |
1209 | ||
1210 | ||
1211 | /* | |
1212 | * 'cupsdHoldSignals()' - Hold child and termination signals. | |
1213 | */ | |
1214 | ||
1215 | void | |
1216 | cupsdHoldSignals(void) | |
1217 | { | |
1218 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
1219 | sigset_t newmask; /* New POSIX signal mask */ | |
1220 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
1221 | ||
1222 | ||
1223 | holdcount ++; | |
1224 | if (holdcount > 1) | |
1225 | return; | |
1226 | ||
1227 | #ifdef HAVE_SIGSET | |
1228 | sighold(SIGTERM); | |
1229 | sighold(SIGCHLD); | |
1230 | #elif defined(HAVE_SIGACTION) | |
1231 | sigemptyset(&newmask); | |
1232 | sigaddset(&newmask, SIGTERM); | |
1233 | sigaddset(&newmask, SIGCHLD); | |
1234 | sigprocmask(SIG_BLOCK, &newmask, &holdmask); | |
1235 | #endif /* HAVE_SIGSET */ | |
1236 | } | |
1237 | ||
1238 | ||
ef416fc2 | 1239 | /* |
1240 | * 'cupsdReleaseSignals()' - Release signals for delivery. | |
1241 | */ | |
1242 | ||
1243 | void | |
1244 | cupsdReleaseSignals(void) | |
1245 | { | |
1246 | holdcount --; | |
1247 | if (holdcount > 0) | |
1248 | return; | |
1249 | ||
1250 | #ifdef HAVE_SIGSET | |
1251 | sigrelse(SIGTERM); | |
1252 | sigrelse(SIGCHLD); | |
1253 | #elif defined(HAVE_SIGACTION) | |
1254 | sigprocmask(SIG_SETMASK, &holdmask, NULL); | |
1255 | #endif /* HAVE_SIGSET */ | |
1256 | } | |
1257 | ||
1258 | ||
1259 | /* | |
1260 | * 'cupsdSetString()' - Set a string value. | |
1261 | */ | |
1262 | ||
1263 | void | |
1264 | cupsdSetString(char **s, /* O - New string */ | |
1265 | const char *v) /* I - String value */ | |
1266 | { | |
1267 | if (!s || *s == v) | |
1268 | return; | |
1269 | ||
1270 | if (*s) | |
5e6c3df7 | 1271 | free(*s); |
ef416fc2 | 1272 | |
1273 | if (v) | |
5e6c3df7 | 1274 | *s = strdup(v); |
ef416fc2 | 1275 | else |
1276 | *s = NULL; | |
1277 | } | |
1278 | ||
1279 | ||
1280 | /* | |
1281 | * 'cupsdSetStringf()' - Set a formatted string value. | |
1282 | */ | |
1283 | ||
1284 | void | |
1285 | cupsdSetStringf(char **s, /* O - New string */ | |
1286 | const char *f, /* I - Printf-style format string */ | |
1287 | ...) /* I - Additional args as needed */ | |
1288 | { | |
94436c5a | 1289 | char v[65536 + 64]; /* Formatting string value */ |
ef416fc2 | 1290 | va_list ap; /* Argument pointer */ |
1291 | char *olds; /* Old string */ | |
1292 | ||
1293 | ||
1294 | if (!s) | |
1295 | return; | |
1296 | ||
1297 | olds = *s; | |
1298 | ||
1299 | if (f) | |
1300 | { | |
1301 | va_start(ap, f); | |
1302 | vsnprintf(v, sizeof(v), f, ap); | |
1303 | va_end(ap); | |
1304 | ||
5e6c3df7 | 1305 | *s = strdup(v); |
ef416fc2 | 1306 | } |
1307 | else | |
1308 | *s = NULL; | |
1309 | ||
1310 | if (olds) | |
5e6c3df7 | 1311 | free(olds); |
ef416fc2 | 1312 | } |
1313 | ||
1314 | ||
1315 | /* | |
1316 | * 'parent_handler()' - Catch USR1/CHLD signals... | |
1317 | */ | |
1318 | ||
1319 | static void | |
1320 | parent_handler(int sig) /* I - Signal */ | |
1321 | { | |
1322 | /* | |
1323 | * Store the signal we got from the OS and return... | |
1324 | */ | |
1325 | ||
1326 | parent_signal = sig; | |
1327 | } | |
1328 | ||
1329 | ||
1330 | /* | |
1331 | * 'process_children()' - Process all dead children... | |
1332 | */ | |
1333 | ||
1334 | static void | |
1335 | process_children(void) | |
1336 | { | |
1337 | int status; /* Exit status of child */ | |
b9faaae1 MS |
1338 | int pid, /* Process ID of child */ |
1339 | job_id; /* Job ID of child */ | |
ef416fc2 | 1340 | cupsd_job_t *job; /* Current job */ |
1341 | int i; /* Looping var */ | |
e00b005a | 1342 | char name[1024]; /* Process name */ |
dcb445bc | 1343 | const char *type; /* Type of program */ |
ef416fc2 | 1344 | |
1345 | ||
1346 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "process_children()"); | |
1347 | ||
1348 | /* | |
1349 | * Reset the dead_children flag... | |
1350 | */ | |
1351 | ||
1352 | dead_children = 0; | |
1353 | ||
1354 | /* | |
1355 | * Collect the exit status of some children... | |
1356 | */ | |
1357 | ||
1358 | #ifdef HAVE_WAITPID | |
1359 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) | |
1360 | #elif defined(HAVE_WAIT3) | |
1361 | while ((pid = wait3(&status, WNOHANG, NULL)) > 0) | |
1362 | #else | |
1363 | if ((pid = wait(&status)) > 0) | |
1364 | #endif /* HAVE_WAITPID */ | |
1365 | { | |
ef416fc2 | 1366 | /* |
745129be | 1367 | * Collect the name of the process that finished... |
ef416fc2 | 1368 | */ |
1369 | ||
b9faaae1 | 1370 | cupsdFinishProcess(pid, name, sizeof(name), &job_id); |
e00b005a | 1371 | |
ef416fc2 | 1372 | /* |
1373 | * Delete certificates for CGI processes... | |
1374 | */ | |
1375 | ||
1376 | if (pid) | |
1377 | cupsdDeleteCert(pid); | |
1378 | ||
1379 | /* | |
b9faaae1 | 1380 | * Handle completed job filters... |
ef416fc2 | 1381 | */ |
1382 | ||
dcb445bc MS |
1383 | if (job_id > 0) |
1384 | job = cupsdFindJob(job_id); | |
1385 | else | |
1386 | job = NULL; | |
1387 | ||
1388 | if (job) | |
b9faaae1 MS |
1389 | { |
1390 | for (i = 0; job->filters[i]; i ++) | |
1391 | if (job->filters[i] == pid) | |
1392 | break; | |
1393 | ||
1394 | if (job->filters[i] || job->backend == pid) | |
ef416fc2 | 1395 | { |
b9faaae1 MS |
1396 | /* |
1397 | * OK, this process has gone away; what's left? | |
1398 | */ | |
1399 | ||
1400 | if (job->filters[i]) | |
dcb445bc | 1401 | { |
b9faaae1 | 1402 | job->filters[i] = -pid; |
dcb445bc MS |
1403 | type = "Filter"; |
1404 | } | |
b9faaae1 | 1405 | else |
dcb445bc | 1406 | { |
b9faaae1 | 1407 | job->backend = -pid; |
dcb445bc MS |
1408 | type = "Backend"; |
1409 | } | |
ef416fc2 | 1410 | |
b9faaae1 | 1411 | if (status && status != SIGTERM && status != SIGKILL && |
f3c17241 | 1412 | status != SIGPIPE) |
ef416fc2 | 1413 | { |
1414 | /* | |
b9faaae1 MS |
1415 | * An error occurred; save the exit status so we know to stop |
1416 | * the printer or cancel the job when all of the filters finish... | |
1417 | * | |
1418 | * A negative status indicates that the backend failed and the | |
1419 | * printer needs to be stopped. | |
f3c17241 MS |
1420 | * |
1421 | * In order to preserve the most serious status, we always log | |
1422 | * when a process dies due to a signal (e.g. SIGABRT, SIGSEGV, | |
1423 | * and SIGBUS) and prefer to log the backend exit status over a | |
1424 | * filter's. | |
ef416fc2 | 1425 | */ |
1426 | ||
f3c17241 MS |
1427 | int old_status = abs(job->status); |
1428 | ||
1429 | if (WIFSIGNALED(status) || /* This process crashed, or */ | |
1430 | !job->status || /* No process had a status, or */ | |
1431 | (!job->filters[i] && WIFEXITED(old_status))) | |
1432 | { /* Backend and filter didn't crash */ | |
1433 | if (job->filters[i]) | |
1434 | job->status = status; /* Filter failed */ | |
1435 | else | |
1436 | job->status = -status; /* Backend failed */ | |
1437 | } | |
ef416fc2 | 1438 | |
f11a948a | 1439 | if (job->state_value == IPP_JOB_PROCESSING && |
dcb445bc MS |
1440 | job->status_level > CUPSD_LOG_ERROR && |
1441 | (job->filters[i] || !WIFEXITED(status))) | |
ef416fc2 | 1442 | { |
f11a948a MS |
1443 | char message[1024]; /* New printer-state-message */ |
1444 | ||
1445 | ||
b9faaae1 | 1446 | job->status_level = CUPSD_LOG_ERROR; |
ef416fc2 | 1447 | |
dcb445bc | 1448 | snprintf(message, sizeof(message), "%s failed", type); |
f11a948a | 1449 | |
e07d4801 MS |
1450 | if (job->printer) |
1451 | { | |
f11a948a MS |
1452 | strlcpy(job->printer->state_message, message, |
1453 | sizeof(job->printer->state_message)); | |
e07d4801 MS |
1454 | } |
1455 | ||
1456 | if (!job->attrs) | |
1457 | cupsdLoadJob(job); | |
e00b005a | 1458 | |
e07d4801 | 1459 | if (!job->printer_message && job->attrs) |
e00b005a | 1460 | { |
b9faaae1 MS |
1461 | if ((job->printer_message = |
1462 | ippFindAttribute(job->attrs, "job-printer-state-message", | |
1463 | IPP_TAG_TEXT)) == NULL) | |
1464 | job->printer_message = ippAddString(job->attrs, IPP_TAG_JOB, | |
1465 | IPP_TAG_TEXT, | |
1466 | "job-printer-state-message", | |
5a662dc0 | 1467 | NULL, NULL); |
e00b005a | 1468 | } |
b9faaae1 | 1469 | |
e07d4801 | 1470 | if (job->printer_message) |
5e6c3df7 | 1471 | ippSetString(job->attrs, &job->printer_message, 0, message); |
ef416fc2 | 1472 | } |
b9faaae1 | 1473 | } |
ef416fc2 | 1474 | |
b9faaae1 MS |
1475 | /* |
1476 | * If this is not the last file in a job, see if all of the | |
1477 | * filters are done, and if so move to the next file. | |
1478 | */ | |
ef416fc2 | 1479 | |
5a662dc0 | 1480 | if (job->current_file < job->num_files && job->printer) |
b9faaae1 MS |
1481 | { |
1482 | for (i = 0; job->filters[i] < 0; i ++); | |
ef416fc2 | 1483 | |
82f97232 MS |
1484 | if (!job->filters[i] && |
1485 | (!job->printer->pc || !job->printer->pc->single_file || | |
1486 | job->backend <= 0)) | |
b9faaae1 MS |
1487 | { |
1488 | /* | |
1489 | * Process the next file... | |
1490 | */ | |
ef416fc2 | 1491 | |
b9faaae1 | 1492 | cupsdContinueJob(job); |
ef416fc2 | 1493 | } |
ef416fc2 | 1494 | } |
5a662dc0 | 1495 | else if (job->state_value >= IPP_JOB_CANCELED) |
7a0cbd5e MS |
1496 | { |
1497 | /* | |
1498 | * Remove the job from the active list if there are no processes still | |
1499 | * running for it... | |
1500 | */ | |
1501 | ||
1502 | for (i = 0; job->filters[i] < 0; i++); | |
1503 | ||
1504 | if (!job->filters[i] && job->backend <= 0) | |
1505 | cupsArrayRemove(ActiveJobs, job); | |
1506 | } | |
ef416fc2 | 1507 | } |
b9faaae1 | 1508 | } |
3dfe78b3 MS |
1509 | |
1510 | /* | |
745129be MS |
1511 | * Show the exit status as needed, ignoring SIGTERM and SIGKILL errors |
1512 | * since they come when we kill/end a process... | |
3dfe78b3 MS |
1513 | */ |
1514 | ||
745129be MS |
1515 | if (status == SIGTERM || status == SIGKILL) |
1516 | { | |
dcb445bc MS |
1517 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1518 | "PID %d (%s) was terminated normally with signal %d.", pid, | |
1519 | name, status); | |
745129be | 1520 | } |
5a6b583a MS |
1521 | else if (status == SIGPIPE) |
1522 | { | |
dcb445bc MS |
1523 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1524 | "PID %d (%s) did not catch or ignore signal %d.", pid, name, | |
1525 | status); | |
5a6b583a | 1526 | } |
745129be | 1527 | else if (status) |
3dfe78b3 MS |
1528 | { |
1529 | if (WIFEXITED(status)) | |
88f9aafc MS |
1530 | { |
1531 | int code = WEXITSTATUS(status); /* Exit code */ | |
1532 | ||
1533 | if (code > 100) | |
dcb445bc MS |
1534 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1535 | "PID %d (%s) stopped with status %d (%s)", pid, name, | |
1536 | code, strerror(code - 100)); | |
88f9aafc | 1537 | else |
dcb445bc MS |
1538 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1539 | "PID %d (%s) stopped with status %d.", pid, name, code); | |
88f9aafc | 1540 | } |
3dfe78b3 | 1541 | else |
dcb445bc MS |
1542 | cupsdLogJob(job, CUPSD_LOG_DEBUG, "PID %d (%s) crashed on signal %d.", |
1543 | pid, name, WTERMSIG(status)); | |
3dfe78b3 MS |
1544 | |
1545 | if (LogLevel < CUPSD_LOG_DEBUG) | |
dcb445bc MS |
1546 | cupsdLogJob(job, CUPSD_LOG_INFO, |
1547 | "Hint: Try setting the LogLevel to \"debug\" to find out " | |
1548 | "more."); | |
3dfe78b3 MS |
1549 | } |
1550 | else | |
dcb445bc MS |
1551 | cupsdLogJob(job, CUPSD_LOG_DEBUG, "PID %d (%s) exited with no errors.", |
1552 | pid, name); | |
ef416fc2 | 1553 | } |
dfd5680b MS |
1554 | |
1555 | /* | |
1556 | * If wait*() is interrupted by a signal, tell main() to call us again... | |
1557 | */ | |
1558 | ||
1559 | if (pid < 0 && errno == EINTR) | |
1560 | dead_children = 1; | |
ef416fc2 | 1561 | } |
1562 | ||
1563 | ||
ef416fc2 | 1564 | /* |
1565 | * 'select_timeout()' - Calculate the select timeout value. | |
1566 | * | |
1567 | */ | |
1568 | ||
1569 | static long /* O - Number of seconds */ | |
bd7854cb | 1570 | select_timeout(int fds) /* I - Number of descriptors returned */ |
ef416fc2 | 1571 | { |
ef416fc2 | 1572 | long timeout; /* Timeout for select */ |
1573 | time_t now; /* Current time */ | |
1574 | cupsd_client_t *con; /* Client information */ | |
ef416fc2 | 1575 | cupsd_job_t *job; /* Job information */ |
1576 | cupsd_subscription_t *sub; /* Subscription information */ | |
1577 | const char *why; /* Debugging aid */ | |
1578 | ||
1579 | ||
82cc1f9a MS |
1580 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout: JobHistoryUpdate=%ld", |
1581 | (long)JobHistoryUpdate); | |
1582 | ||
ef416fc2 | 1583 | /* |
1584 | * Check to see if any of the clients have pending data to be | |
1585 | * processed; if so, the timeout should be 0... | |
1586 | */ | |
1587 | ||
bd7854cb | 1588 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
1589 | con; | |
1590 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
1720786e | 1591 | if (httpGetReady(con->http)) |
ef416fc2 | 1592 | return (0); |
1593 | ||
1594 | /* | |
f7deaa1a | 1595 | * If select has been active in the last second (fds > 0) or we have |
ef416fc2 | 1596 | * many resources in use then don't bother trying to optimize the |
1597 | * timeout, just make it 1 second. | |
1598 | */ | |
1599 | ||
f7deaa1a | 1600 | if (fds > 0 || cupsArrayCount(Clients) > 50) |
ef416fc2 | 1601 | return (1); |
1602 | ||
1603 | /* | |
1604 | * Otherwise, check all of the possible events that we need to wake for... | |
1605 | */ | |
1606 | ||
1607 | now = time(NULL); | |
1608 | timeout = now + 86400; /* 86400 == 1 day */ | |
1609 | why = "do nothing"; | |
1610 | ||
e6013cfa MS |
1611 | #ifdef __APPLE__ |
1612 | /* | |
1613 | * When going to sleep, wake up to cancel jobs that don't complete in time. | |
1614 | */ | |
1615 | ||
1616 | if (SleepJobs > 0 && SleepJobs < timeout) | |
1617 | { | |
1618 | timeout = SleepJobs; | |
1619 | why = "cancel jobs before sleeping"; | |
1620 | } | |
1621 | #endif /* __APPLE__ */ | |
1622 | ||
76cd9e37 MS |
1623 | /* |
1624 | * Check whether we are accepting new connections... | |
1625 | */ | |
1626 | ||
1627 | if (ListeningPaused > 0 && cupsArrayCount(Clients) < MaxClients && | |
1628 | ListeningPaused < timeout) | |
1629 | { | |
1630 | if (ListeningPaused <= now) | |
1631 | timeout = now; | |
1632 | else | |
1633 | timeout = ListeningPaused; | |
1634 | ||
1635 | why = "resume listening"; | |
1636 | } | |
1637 | ||
ef416fc2 | 1638 | /* |
1639 | * Check the activity and close old clients... | |
1640 | */ | |
1641 | ||
bd7854cb | 1642 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
1643 | con; | |
1644 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
1720786e | 1645 | if ((httpGetActivity(con->http) + Timeout) < timeout) |
ef416fc2 | 1646 | { |
1720786e | 1647 | timeout = httpGetActivity(con->http) + Timeout; |
ef416fc2 | 1648 | why = "timeout a client connection"; |
1649 | } | |
1650 | ||
3dfe78b3 | 1651 | /* |
bf3816c7 | 1652 | * Write out changes to configuration and state files... |
3dfe78b3 MS |
1653 | */ |
1654 | ||
1655 | if (DirtyCleanTime && timeout > DirtyCleanTime) | |
1656 | { | |
1657 | timeout = DirtyCleanTime; | |
1658 | why = "write dirty config/state files"; | |
1659 | } | |
1660 | ||
ef416fc2 | 1661 | /* |
82cc1f9a | 1662 | * Check for any job activity... |
ef416fc2 | 1663 | */ |
1664 | ||
82cc1f9a MS |
1665 | if (JobHistoryUpdate && timeout > JobHistoryUpdate) |
1666 | { | |
1667 | timeout = JobHistoryUpdate; | |
1668 | why = "update job history"; | |
1669 | } | |
1670 | ||
238c3832 MS |
1671 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); |
1672 | job; | |
1673 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
ef416fc2 | 1674 | { |
82cc1f9a MS |
1675 | if (job->cancel_time && job->cancel_time < timeout) |
1676 | { | |
1677 | timeout = job->cancel_time; | |
1678 | why = "cancel stuck jobs"; | |
1679 | } | |
1680 | ||
238c3832 MS |
1681 | if (job->kill_time && job->kill_time < timeout) |
1682 | { | |
1683 | timeout = job->kill_time; | |
1684 | why = "kill unresponsive jobs"; | |
1685 | } | |
82cc1f9a MS |
1686 | |
1687 | if (job->state_value == IPP_JOB_HELD && job->hold_until < timeout) | |
238c3832 MS |
1688 | { |
1689 | timeout = job->hold_until; | |
1690 | why = "release held jobs"; | |
1691 | } | |
82cc1f9a MS |
1692 | |
1693 | if (job->state_value == IPP_JOB_PENDING && timeout > (now + 10)) | |
238c3832 MS |
1694 | { |
1695 | timeout = now + 10; | |
1696 | why = "start pending jobs"; | |
1697 | break; | |
1698 | } | |
ef416fc2 | 1699 | } |
1700 | ||
1701 | #ifdef HAVE_MALLINFO | |
1702 | /* | |
1703 | * Log memory usage every minute... | |
1704 | */ | |
1705 | ||
1706 | if (LogLevel >= CUPSD_LOG_DEBUG && (mallinfo_time + 60) < timeout) | |
1707 | { | |
1708 | timeout = mallinfo_time + 60; | |
1709 | why = "display memory usage"; | |
1710 | } | |
1711 | #endif /* HAVE_MALLINFO */ | |
1712 | ||
ef416fc2 | 1713 | /* |
1714 | * Expire subscriptions as needed... | |
1715 | */ | |
1716 | ||
1717 | for (sub = (cupsd_subscription_t *)cupsArrayFirst(Subscriptions); | |
1718 | sub; | |
1719 | sub = (cupsd_subscription_t *)cupsArrayNext(Subscriptions)) | |
bd7854cb | 1720 | if (!sub->job && sub->expire && sub->expire < timeout) |
ef416fc2 | 1721 | { |
1722 | timeout = sub->expire; | |
1723 | why = "expire subscription"; | |
1724 | } | |
1725 | ||
1726 | /* | |
dcb445bc MS |
1727 | * Adjust from absolute to relative time. We add 1 second to the timeout since |
1728 | * events occur after the timeout expires, and limit the timeout to 86400 | |
1729 | * seconds (1 day) to avoid select() timeout limits present on some operating | |
ef416fc2 | 1730 | * systems... |
1731 | */ | |
1732 | ||
1733 | timeout = timeout - now + 1; | |
1734 | ||
1735 | if (timeout < 1) | |
1736 | timeout = 1; | |
1737 | else if (timeout > 86400) | |
1738 | timeout = 86400; | |
1739 | ||
1740 | /* | |
1741 | * Log and return the timeout value... | |
1742 | */ | |
1743 | ||
f7deaa1a | 1744 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout(%d): %ld seconds to %s", |
1745 | fds, timeout, why); | |
ef416fc2 | 1746 | |
1747 | return (timeout); | |
1748 | } | |
1749 | ||
1750 | ||
e6013cfa MS |
1751 | /* |
1752 | * 'sigchld_handler()' - Handle 'child' signals from old processes. | |
1753 | */ | |
1754 | ||
1755 | static void | |
1756 | sigchld_handler(int sig) /* I - Signal number */ | |
1757 | { | |
1758 | (void)sig; | |
1759 | ||
1760 | /* | |
1761 | * Flag that we have dead children... | |
1762 | */ | |
1763 | ||
1764 | dead_children = 1; | |
1765 | ||
1766 | /* | |
1767 | * Reset the signal handler as needed... | |
1768 | */ | |
1769 | ||
1770 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
1771 | signal(SIGCLD, sigchld_handler); | |
1772 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
1773 | } | |
1774 | ||
1775 | ||
1776 | /* | |
1777 | * 'sighup_handler()' - Handle 'hangup' signals to reconfigure the scheduler. | |
1778 | */ | |
1779 | ||
1780 | static void | |
1781 | sighup_handler(int sig) /* I - Signal number */ | |
1782 | { | |
1783 | (void)sig; | |
1784 | ||
1785 | NeedReload = RELOAD_ALL; | |
1786 | ReloadTime = time(NULL); | |
1787 | ||
1788 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
1789 | signal(SIGHUP, sighup_handler); | |
1790 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
1791 | } | |
1792 | ||
1793 | ||
1794 | /* | |
1795 | * 'sigterm_handler()' - Handle 'terminate' signals that stop the scheduler. | |
1796 | */ | |
1797 | ||
1798 | static void | |
1799 | sigterm_handler(int sig) /* I - Signal number */ | |
1800 | { | |
1801 | (void)sig; /* remove compiler warnings... */ | |
1802 | ||
1803 | /* | |
1804 | * Flag that we should stop and return... | |
1805 | */ | |
1806 | ||
1807 | stop_scheduler = 1; | |
1808 | } | |
1809 | ||
1810 | ||
1720786e MS |
1811 | #if defined(HAVE_LAUNCHD) || defined(HAVE_SYSTEMD) |
1812 | /* | |
1813 | * 'service_checkin()' - Check-in with launchd and collect the listening fds. | |
1814 | */ | |
1815 | ||
1816 | static void | |
1817 | service_checkin(void) | |
1818 | { | |
1819 | # ifdef HAVE_LAUNCH_ACTIVATE_SOCKET | |
1820 | int error; /* Check-in error, if any */ | |
1821 | size_t i, /* Looping var */ | |
1822 | count; /* Number of listeners */ | |
1823 | int *ld_sockets; /* Listener sockets */ | |
1824 | cupsd_listener_t *lis; /* Listeners array */ | |
1825 | http_addr_t addr; /* Address variable */ | |
1826 | socklen_t addrlen; /* Length of address */ | |
1827 | char s[256]; /* String addresss */ | |
1828 | ||
1829 | ||
1830 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: pid=%d", (int)getpid()); | |
1831 | ||
1832 | /* | |
1833 | * Check-in with launchd... | |
1834 | */ | |
1835 | ||
1836 | if ((error = launch_activate_socket("Listeners", &ld_sockets, &count)) != 0) | |
1837 | { | |
1838 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to get listener sockets: %s", strerror(error)); | |
1839 | exit(EXIT_FAILURE); | |
1840 | return; /* anti-compiler-warning */ | |
1841 | } | |
1842 | ||
1843 | /* | |
1844 | * Try to match the launchd sockets to the cupsd listeners... | |
1845 | */ | |
1846 | ||
1847 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: %d listeners.", (int)count); | |
1848 | ||
1849 | for (i = 0; i < count; i ++) | |
1850 | { | |
1851 | /* | |
1852 | * Get the launchd socket address... | |
1853 | */ | |
1854 | ||
1855 | addrlen = sizeof(addr); | |
1856 | ||
1857 | if (getsockname(ld_sockets[i], (struct sockaddr *)&addr, &addrlen)) | |
1858 | { | |
1859 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to get local address for listener #%d: %s", (int)i + 1, strerror(errno)); | |
1860 | continue; | |
1861 | } | |
1862 | ||
1863 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: Listener #%d at fd %d, \"%s\".", (int)i + 1, ld_sockets[i], httpAddrString(&addr, s, sizeof(s))); | |
1864 | ||
1865 | for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); | |
1866 | lis; | |
1867 | lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
1868 | if (httpAddrEqual(&lis->address, &addr)) | |
1869 | break; | |
1870 | ||
1871 | /* | |
1872 | * Add a new listener if there's no match... | |
1873 | */ | |
1874 | ||
1875 | if (lis) | |
1876 | { | |
1877 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: Matched existing listener #%d to %s.", (int)i + 1, httpAddrString(&(lis->address), s, sizeof(s))); | |
1878 | } | |
1879 | else | |
1880 | { | |
1881 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: Adding new listener #%d for %s.", (int)i + 1, httpAddrString(&addr, s, sizeof(s))); | |
1882 | ||
1883 | if ((lis = calloc(1, sizeof(cupsd_listener_t))) == NULL) | |
1884 | { | |
1885 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to allocate listener: %s", strerror(errno)); | |
1886 | exit(EXIT_FAILURE); | |
1887 | } | |
1888 | ||
1889 | cupsArrayAdd(Listeners, lis); | |
1890 | ||
1891 | memcpy(&lis->address, &addr, sizeof(lis->address)); | |
1892 | } | |
1893 | ||
1894 | lis->fd = ld_sockets[i]; | |
1895 | lis->on_demand = 1; | |
1896 | ||
1897 | # ifdef HAVE_SSL | |
1898 | if (httpAddrPort(&(lis->address)) == 443) | |
1899 | lis->encryption = HTTP_ENCRYPT_ALWAYS; | |
1900 | # endif /* HAVE_SSL */ | |
1901 | } | |
1902 | ||
117466cd MS |
1903 | free(ld_sockets); |
1904 | ||
1720786e MS |
1905 | # elif defined(HAVE_LAUNCHD) |
1906 | size_t i, /* Looping var */ | |
1907 | count; /* Number of listeners */ | |
1908 | launch_data_t ld_msg, /* Launch data message */ | |
1909 | ld_resp, /* Launch data response */ | |
1910 | ld_array, /* Launch data array */ | |
1911 | ld_sockets, /* Launch data sockets dictionary */ | |
1912 | tmp; /* Launch data */ | |
1913 | cupsd_listener_t *lis; /* Listeners array */ | |
1914 | http_addr_t addr; /* Address variable */ | |
1915 | socklen_t addrlen; /* Length of address */ | |
1916 | int fd; /* File descriptor */ | |
1917 | char s[256]; /* String addresss */ | |
1918 | ||
1919 | ||
1920 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: pid=%d", (int)getpid()); | |
1921 | ||
1922 | /* | |
1923 | * Check-in with launchd... | |
1924 | */ | |
1925 | ||
1926 | ld_msg = launch_data_new_string(LAUNCH_KEY_CHECKIN); | |
1927 | if ((ld_resp = launch_msg(ld_msg)) == NULL) | |
1928 | { | |
1929 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1930 | "service_checkin: launch_msg(\"" LAUNCH_KEY_CHECKIN | |
1931 | "\") IPC failure"); | |
1932 | exit(EXIT_FAILURE); | |
1933 | return; /* anti-compiler-warning */ | |
1934 | } | |
1935 | ||
1936 | if (launch_data_get_type(ld_resp) == LAUNCH_DATA_ERRNO) | |
1937 | { | |
1938 | errno = launch_data_get_errno(ld_resp); | |
1939 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Check-in failed: %s", | |
1940 | strerror(errno)); | |
1941 | exit(EXIT_FAILURE); | |
1942 | return; /* anti-compiler-warning */ | |
1943 | } | |
1944 | ||
1945 | /* | |
1946 | * Get the sockets dictionary... | |
1947 | */ | |
1948 | ||
1949 | if ((ld_sockets = launch_data_dict_lookup(ld_resp, LAUNCH_JOBKEY_SOCKETS)) | |
1950 | == NULL) | |
1951 | { | |
1952 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1953 | "service_checkin: No sockets found to answer requests on."); | |
1954 | exit(EXIT_FAILURE); | |
1955 | return; /* anti-compiler-warning */ | |
1956 | } | |
1957 | ||
1958 | /* | |
1959 | * Get the array of listener sockets... | |
1960 | */ | |
1961 | ||
1962 | if ((ld_array = launch_data_dict_lookup(ld_sockets, "Listeners")) == NULL) | |
1963 | { | |
1964 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1965 | "service_checkin: No sockets found to answer requests on."); | |
1966 | exit(EXIT_FAILURE); | |
1967 | return; /* anti-compiler-warning */ | |
1968 | } | |
1969 | ||
1970 | /* | |
1971 | * Add listening fd(s) to the Listener array... | |
1972 | */ | |
1973 | ||
1974 | if (launch_data_get_type(ld_array) == LAUNCH_DATA_ARRAY) | |
1975 | { | |
1976 | count = launch_data_array_get_count(ld_array); | |
1977 | ||
1978 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: %d listeners.", (int)count); | |
1979 | ||
1980 | for (i = 0; i < count; i ++) | |
1981 | { | |
1982 | /* | |
1983 | * Get the launchd file descriptor and address... | |
1984 | */ | |
1985 | ||
1986 | if ((tmp = launch_data_array_get_index(ld_array, i)) != NULL) | |
1987 | { | |
1988 | fd = launch_data_get_fd(tmp); | |
1989 | addrlen = sizeof(addr); | |
1990 | ||
1991 | if (getsockname(fd, (struct sockaddr *)&addr, &addrlen)) | |
1992 | { | |
1993 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to get local address for listener #%d: %s", (int)i + 1, strerror(errno)); | |
1994 | continue; | |
1995 | } | |
1996 | ||
1997 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: Listener #%d at fd %d, \"%s\".", (int)i + 1, fd, httpAddrString(&addr, s, sizeof(s))); | |
1998 | ||
1999 | /* | |
2000 | * Try to match the launchd socket address to one of the listeners... | |
2001 | */ | |
2002 | ||
2003 | for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); | |
2004 | lis; | |
2005 | lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
2006 | if (httpAddrEqual(&lis->address, &addr)) | |
2007 | break; | |
2008 | ||
2009 | /* | |
2010 | * Add a new listener If there's no match... | |
2011 | */ | |
2012 | ||
2013 | if (lis) | |
2014 | { | |
2015 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: Matched existing listener #%d to %s.", (int)i + 1, httpAddrString(&(lis->address), s, sizeof(s))); | |
2016 | } | |
2017 | else | |
2018 | { | |
2019 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: Adding new listener #%d for %s.", (int)i + 1, httpAddrString(&addr, s, sizeof(s))); | |
2020 | ||
2021 | if ((lis = calloc(1, sizeof(cupsd_listener_t))) == NULL) | |
2022 | { | |
2023 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to allocate listener: %s.", strerror(errno)); | |
2024 | exit(EXIT_FAILURE); | |
2025 | } | |
2026 | ||
2027 | cupsArrayAdd(Listeners, lis); | |
2028 | ||
2029 | memcpy(&lis->address, &addr, sizeof(lis->address)); | |
2030 | } | |
2031 | ||
2032 | lis->fd = fd; | |
2033 | lis->on_demand = 1; | |
2034 | ||
2035 | # ifdef HAVE_SSL | |
2036 | if (httpAddrPort(&(lis->address)) == 443) | |
2037 | lis->encryption = HTTP_ENCRYPT_ALWAYS; | |
2038 | # endif /* HAVE_SSL */ | |
2039 | } | |
2040 | } | |
2041 | } | |
2042 | ||
2043 | launch_data_free(ld_msg); | |
2044 | launch_data_free(ld_resp); | |
2045 | ||
2046 | # else /* HAVE_SYSTEMD */ | |
2047 | int i, /* Looping var */ | |
2048 | count; /* Number of listeners */ | |
2049 | cupsd_listener_t *lis; /* Listeners array */ | |
2050 | http_addr_t addr; /* Address variable */ | |
2051 | socklen_t addrlen; /* Length of address */ | |
2052 | char s[256]; /* String addresss */ | |
2053 | ||
2054 | ||
2055 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: pid=%d", (int)getpid()); | |
2056 | ||
2057 | /* | |
2058 | * Check-in with systemd... | |
2059 | */ | |
2060 | ||
2061 | if ((count = sd_listen_fds(0)) < 0) | |
2062 | { | |
5950e7bd | 2063 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to get listener sockets: %s", strerror(-count)); |
1720786e MS |
2064 | exit(EXIT_FAILURE); |
2065 | return; /* anti-compiler-warning */ | |
2066 | } | |
2067 | ||
2068 | /* | |
2069 | * Try to match the systemd sockets to the cupsd listeners... | |
2070 | */ | |
2071 | ||
2072 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: %d listeners.", count); | |
2073 | ||
2074 | for (i = 0; i < count; i ++) | |
2075 | { | |
2076 | /* | |
2077 | * Get the launchd socket address... | |
2078 | */ | |
2079 | ||
2080 | addrlen = sizeof(addr); | |
2081 | ||
2082 | if (getsockname(SD_LISTEN_FDS_START + i, (struct sockaddr *)&addr, &addrlen)) | |
2083 | { | |
2084 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to get local address for listener #%d: %s", (int)i + 1, strerror(errno)); | |
2085 | continue; | |
2086 | } | |
2087 | ||
2088 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: Listener #%d at fd %d, \"%s\".", (int)i + 1, SD_LISTEN_FDS_START + i, httpAddrString(&addr, s, sizeof(s))); | |
2089 | ||
2090 | for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); | |
2091 | lis; | |
2092 | lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
2093 | if (httpAddrEqual(&lis->address, &addr)) | |
2094 | break; | |
2095 | ||
2096 | /* | |
2097 | * Add a new listener if there's no match... | |
2098 | */ | |
2099 | ||
2100 | if (lis) | |
2101 | { | |
2102 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: Matched existing listener #%d to %s.", (int)i + 1, httpAddrString(&(lis->address), s, sizeof(s))); | |
2103 | } | |
2104 | else | |
2105 | { | |
2106 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: Adding new listener #%d for %s.", (int)i + 1, httpAddrString(&addr, s, sizeof(s))); | |
2107 | ||
2108 | if ((lis = calloc(1, sizeof(cupsd_listener_t))) == NULL) | |
2109 | { | |
2110 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to allocate listener: %s", strerror(errno)); | |
2111 | exit(EXIT_FAILURE); | |
2112 | } | |
2113 | ||
2114 | cupsArrayAdd(Listeners, lis); | |
2115 | ||
2116 | memcpy(&lis->address, &addr, sizeof(lis->address)); | |
2117 | } | |
2118 | ||
2119 | lis->fd = SD_LISTEN_FDS_START + i; | |
2120 | lis->on_demand = 1; | |
2121 | ||
2122 | # ifdef HAVE_SSL | |
2123 | if (httpAddrPort(&(lis->address)) == 443) | |
2124 | lis->encryption = HTTP_ENCRYPT_ALWAYS; | |
2125 | # endif /* HAVE_SSL */ | |
2126 | } | |
2127 | # endif /* HAVE_LAUNCH_ACTIVATE_SOCKET */ | |
2128 | } | |
2129 | ||
2130 | ||
2131 | /* | |
2132 | * 'service_checkout()' - Update the CUPS_KEEPALIVE file as needed. | |
2133 | */ | |
2134 | ||
2135 | static void | |
2136 | service_checkout(void) | |
2137 | { | |
2138 | int fd; /* File descriptor */ | |
2139 | ||
2140 | ||
2141 | /* | |
8e732f4a | 2142 | * Create or remove the "keep-alive" file based on whether there are active |
1720786e MS |
2143 | * jobs or shared printers to advertise... |
2144 | */ | |
2145 | ||
0627e869 | 2146 | if (cupsArrayCount(ActiveJobs) || /* Active jobs */ |
0627e869 | 2147 | WebInterface || /* Web interface enabled */ |
1720786e | 2148 | (Browsing && BrowseLocalProtocols && cupsArrayCount(Printers))) |
0627e869 | 2149 | /* Printers being shared */ |
1720786e MS |
2150 | { |
2151 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Creating keep-alive file \"" CUPS_KEEPALIVE "\"."); | |
2152 | ||
2153 | if ((fd = open(CUPS_KEEPALIVE, O_RDONLY | O_CREAT | O_EXCL, S_IRUSR)) >= 0) | |
2154 | close(fd); | |
2155 | } | |
2156 | else | |
2157 | { | |
2158 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Removing keep-alive file \"" CUPS_KEEPALIVE "\"."); | |
2159 | ||
2160 | unlink(CUPS_KEEPALIVE); | |
2161 | } | |
2162 | } | |
2163 | #endif /* HAVE_LAUNCHD || HAVE_SYSTEMD */ | |
2164 | ||
2165 | ||
ef416fc2 | 2166 | /* |
2167 | * 'usage()' - Show scheduler usage. | |
2168 | */ | |
2169 | ||
2170 | static void | |
a4d04587 | 2171 | usage(int status) /* O - Exit status */ |
ef416fc2 | 2172 | { |
0837b7e8 MS |
2173 | FILE *fp = status ? stderr : stdout; /* Output file */ |
2174 | ||
2175 | ||
2176 | _cupsLangPuts(fp, _("Usage: cupsd [options]")); | |
2177 | _cupsLangPuts(fp, _("Options:")); | |
f3c17241 | 2178 | _cupsLangPuts(fp, _(" -c cupsd.conf Set cupsd.conf file to use.")); |
84315f46 MS |
2179 | _cupsLangPuts(fp, _(" -f Run in the foreground.")); |
2180 | _cupsLangPuts(fp, _(" -F Run in the foreground but " | |
2181 | "detach from console.")); | |
2182 | _cupsLangPuts(fp, _(" -h Show this usage message.")); | |
1720786e | 2183 | _cupsLangPuts(fp, _(" -l Run cupsd on demand.")); |
84315f46 | 2184 | _cupsLangPuts(fp, _(" -t Test the configuration " |
0837b7e8 | 2185 | "file.")); |
0837b7e8 | 2186 | |
a4d04587 | 2187 | exit(status); |
ef416fc2 | 2188 | } |
2189 | ||
2190 | ||
2191 | /* | |
f2d18633 | 2192 | * End of "$Id$". |
ef416fc2 | 2193 | */ |