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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 | * |
79d3cd17 | 6 | * Copyright 2007-2016 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? */ | |
2dd94018 | 112 | run_as_child = 0, |
108f7505 | 113 | /* Running as child process? */ |
2dd94018 MS |
114 | print_profile = 0; |
115 | /* Print the sandbox profile to stdout? */ | |
bd7854cb | 116 | int fds; /* Number of ready descriptors */ |
ef416fc2 | 117 | cupsd_client_t *con; /* Current client */ |
118 | cupsd_job_t *job; /* Current job */ | |
119 | cupsd_listener_t *lis; /* Current listener */ | |
120 | time_t current_time, /* Current time */ | |
a4d04587 | 121 | activity, /* Client activity timer */ |
ef416fc2 | 122 | senddoc_time, /* Send-Document time */ |
411affcf | 123 | expire_time, /* Subscription expire time */ |
50fe7201 | 124 | report_time, /* Malloc/client/job report time */ |
5a662dc0 | 125 | event_time; /* Last event notification time */ |
f7deaa1a | 126 | long timeout; /* Timeout for cupsdDoSelect() */ |
ef416fc2 | 127 | struct rlimit limit; /* Runtime limit */ |
128 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
129 | struct sigaction action; /* Actions for POSIX signals */ | |
130 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
a41f09e2 | 131 | #ifdef __APPLE__ |
1deb86fd | 132 | int use_sysman = 1; /* Use system management functions? */ |
a4924f6c MS |
133 | #else |
134 | time_t netif_time = 0; /* Time since last network update */ | |
a41f09e2 | 135 | #endif /* __APPLE__ */ |
1720786e MS |
136 | #if defined(HAVE_LAUNCHD) || defined(HAVE_SYSTEMD) |
137 | int service_idle_exit; | |
a4d04587 | 138 | /* Idle exit on select timeout? */ |
1720786e | 139 | #endif /* HAVE_LAUNCHD || HAVE_SYSTEMD */ |
ef416fc2 | 140 | |
141 | ||
db1f069b MS |
142 | #ifdef HAVE_GETEUID |
143 | /* | |
144 | * Check for setuid invocation, which we do not support! | |
145 | */ | |
146 | ||
147 | if (getuid() != geteuid()) | |
148 | { | |
1deb86fd | 149 | fputs("cupsd: Cannot run as a setuid program.\n", stderr); |
db1f069b MS |
150 | return (1); |
151 | } | |
152 | #endif /* HAVE_GETEUID */ | |
153 | ||
ef416fc2 | 154 | /* |
155 | * Check for command-line arguments... | |
156 | */ | |
157 | ||
4400e98d | 158 | fg = 0; |
ef416fc2 | 159 | |
09a101d6 | 160 | #ifdef HAVE_LAUNCHD |
161 | if (getenv("CUPSD_LAUNCHD")) | |
162 | { | |
108f7505 MS |
163 | OnDemand = 1; |
164 | fg = 1; | |
165 | close_all = 0; | |
166 | disconnect = 0; | |
09a101d6 | 167 | } |
168 | #endif /* HAVE_LAUNCHD */ | |
169 | ||
ef416fc2 | 170 | for (i = 1; i < argc; i ++) |
171 | if (argv[i][0] == '-') | |
172 | for (opt = argv[i] + 1; *opt != '\0'; opt ++) | |
173 | switch (*opt) | |
174 | { | |
a41f09e2 MS |
175 | case 'C' : /* Run as child with config file */ |
176 | run_as_child = 1; | |
108f7505 MS |
177 | fg = 1; |
178 | close_all = 0; | |
a41f09e2 | 179 | |
ef416fc2 | 180 | case 'c' : /* Configuration file */ |
181 | i ++; | |
182 | if (i >= argc) | |
a4d04587 | 183 | { |
184 | _cupsLangPuts(stderr, _("cupsd: Expected config filename " | |
0837b7e8 | 185 | "after \"-c\" option.")); |
a4d04587 | 186 | usage(1); |
187 | } | |
ef416fc2 | 188 | |
189 | if (argv[i][0] == '/') | |
190 | { | |
191 | /* | |
192 | * Absolute directory... | |
193 | */ | |
194 | ||
195 | cupsdSetString(&ConfigurationFile, argv[i]); | |
196 | } | |
197 | else | |
198 | { | |
199 | /* | |
200 | * Relative directory... | |
201 | */ | |
202 | ||
09ec0018 | 203 | char *current; /* Current directory */ |
ef416fc2 | 204 | |
09ec0018 | 205 | /* |
206 | * Allocate a buffer for the current working directory to | |
207 | * reduce run-time stack usage; this approximates the | |
208 | * behavior of some implementations of getcwd() when they | |
209 | * are passed a NULL pointer. | |
210 | */ | |
211 | ||
91c84a35 MS |
212 | if ((current = malloc(1024)) == NULL) |
213 | { | |
214 | _cupsLangPuts(stderr, | |
0837b7e8 | 215 | _("cupsd: Unable to get current directory.")); |
91c84a35 MS |
216 | return (1); |
217 | } | |
218 | ||
219 | if (!getcwd(current, 1024)) | |
220 | { | |
221 | _cupsLangPuts(stderr, | |
0837b7e8 | 222 | _("cupsd: Unable to get current directory.")); |
91c84a35 MS |
223 | free(current); |
224 | return (1); | |
225 | } | |
09ec0018 | 226 | |
ef416fc2 | 227 | cupsdSetStringf(&ConfigurationFile, "%s/%s", current, argv[i]); |
09ec0018 | 228 | free(current); |
ef416fc2 | 229 | } |
230 | break; | |
231 | ||
232 | case 'f' : /* Run in foreground... */ | |
108f7505 MS |
233 | fg = 1; |
234 | disconnect = 0; | |
235 | close_all = 0; | |
ef416fc2 | 236 | break; |
237 | ||
bd7854cb | 238 | case 'F' : /* Run in foreground, but disconnect from terminal... */ |
108f7505 MS |
239 | fg = 1; |
240 | close_all = 0; | |
ef416fc2 | 241 | break; |
242 | ||
a4d04587 | 243 | case 'h' : /* Show usage/help */ |
244 | usage(0); | |
245 | break; | |
246 | ||
1720786e MS |
247 | case 'l' : /* Started by launchd/systemd... */ |
248 | #if defined(HAVE_LAUNCHD) || defined(HAVE_SYSTEMD) | |
108f7505 MS |
249 | OnDemand = 1; |
250 | fg = 1; | |
251 | close_all = 0; | |
252 | disconnect = 0; | |
a4d04587 | 253 | #else |
1720786e | 254 | _cupsLangPuts(stderr, _("cupsd: On-demand support not compiled " |
0837b7e8 | 255 | "in, running in normal mode.")); |
108f7505 MS |
256 | fg = 0; |
257 | disconnect = 1; | |
258 | close_all = 1; | |
1720786e | 259 | #endif /* HAVE_LAUNCHD || HAVE_SYSTEMD */ |
a4d04587 | 260 | break; |
261 | ||
a74454a7 | 262 | case 'p' : /* Stop immediately for profiling */ |
5a662dc0 MS |
263 | fputs("cupsd: -p (startup profiling) is for internal testing " |
264 | "use only!\n", stderr); | |
a74454a7 | 265 | stop_scheduler = 1; |
266 | fg = 1; | |
108f7505 MS |
267 | disconnect = 0; |
268 | close_all = 0; | |
a74454a7 | 269 | break; |
270 | ||
1340db2d | 271 | case 'P' : /* Disable security profiles */ |
8fe0183a MS |
272 | fputs("cupsd: -P (disable sandboxing) is for internal testing use only.\n", stderr); |
273 | UseSandboxing = 0; | |
1340db2d MS |
274 | break; |
275 | ||
c41769ff MS |
276 | case 's' : /* Set cups-files.conf location */ |
277 | i ++; | |
278 | if (i >= argc) | |
279 | { | |
280 | _cupsLangPuts(stderr, _("cupsd: Expected cups-files.conf " | |
281 | "filename after \"-s\" option.")); | |
282 | usage(1); | |
283 | } | |
284 | ||
285 | if (argv[i][0] != '/') | |
286 | { | |
287 | /* | |
288 | * Relative filename not allowed... | |
289 | */ | |
290 | ||
291 | _cupsLangPuts(stderr, _("cupsd: Relative cups-files.conf " | |
292 | "filename not allowed.")); | |
293 | usage(1); | |
294 | } | |
295 | ||
296 | cupsdSetString(&CupsFilesFile, argv[i]); | |
297 | break; | |
298 | ||
68b10830 MS |
299 | #ifdef __APPLE__ |
300 | case 'S' : /* Disable system management functions */ | |
5a662dc0 MS |
301 | fputs("cupsd: -S (disable system management) for internal " |
302 | "testing use only!\n", stderr); | |
68b10830 MS |
303 | use_sysman = 0; |
304 | break; | |
305 | #endif /* __APPLE__ */ | |
306 | ||
2e4ff8af MS |
307 | case 't' : /* Test the cupsd.conf file... */ |
308 | TestConfigFile = 1; | |
309 | fg = 1; | |
108f7505 MS |
310 | disconnect = 0; |
311 | close_all = 0; | |
2e4ff8af MS |
312 | break; |
313 | ||
2dd94018 MS |
314 | case 'T' : /* Print security profile */ |
315 | print_profile = 1; | |
316 | fg = 1; | |
317 | disconnect = 0; | |
318 | close_all = 0; | |
319 | break; | |
320 | ||
ef416fc2 | 321 | default : /* Unknown option */ |
a4d04587 | 322 | _cupsLangPrintf(stderr, _("cupsd: Unknown option \"%c\" - " |
0837b7e8 | 323 | "aborting."), *opt); |
a4d04587 | 324 | usage(1); |
ef416fc2 | 325 | break; |
326 | } | |
327 | else | |
328 | { | |
0837b7e8 | 329 | _cupsLangPrintf(stderr, _("cupsd: Unknown argument \"%s\" - aborting."), |
a4d04587 | 330 | argv[i]); |
331 | usage(1); | |
ef416fc2 | 332 | } |
333 | ||
334 | if (!ConfigurationFile) | |
335 | cupsdSetString(&ConfigurationFile, CUPS_SERVERROOT "/cupsd.conf"); | |
336 | ||
cb7f98ee MS |
337 | if (!CupsFilesFile) |
338 | { | |
339 | char *filename, /* Copy of cupsd.conf filename */ | |
340 | *slash; /* Final slash in cupsd.conf filename */ | |
341 | size_t len; /* Size of buffer */ | |
342 | ||
343 | len = strlen(ConfigurationFile) + 15; | |
344 | if ((filename = malloc(len)) == NULL) | |
345 | { | |
346 | _cupsLangPrintf(stderr, | |
347 | _("cupsd: Unable to get path to " | |
348 | "cups-files.conf file.")); | |
349 | return (1); | |
350 | } | |
351 | ||
352 | strlcpy(filename, ConfigurationFile, len); | |
353 | if ((slash = strrchr(filename, '/')) == NULL) | |
354 | { | |
355 | _cupsLangPrintf(stderr, | |
356 | _("cupsd: Unable to get path to " | |
357 | "cups-files.conf file.")); | |
358 | return (1); | |
359 | } | |
360 | ||
7e86f2f6 | 361 | strlcpy(slash, "/cups-files.conf", len - (size_t)(slash - filename)); |
cb7f98ee MS |
362 | cupsdSetString(&CupsFilesFile, filename); |
363 | free(filename); | |
364 | } | |
365 | ||
108f7505 MS |
366 | if (disconnect) |
367 | { | |
368 | /* | |
369 | * Make sure we aren't tying up any filesystems... | |
370 | */ | |
371 | ||
372 | chdir("/"); | |
373 | ||
374 | /* | |
375 | * Disconnect from the controlling terminal... | |
376 | */ | |
377 | ||
378 | setsid(); | |
379 | } | |
380 | ||
381 | if (close_all) | |
382 | { | |
383 | /* | |
384 | * Close all open files... | |
385 | */ | |
386 | ||
387 | getrlimit(RLIMIT_NOFILE, &limit); | |
388 | ||
389 | for (i = 0; i < (int)limit.rlim_cur && i < 1024; i ++) | |
390 | close(i); | |
391 | ||
392 | /* | |
393 | * Redirect stdin/out/err to /dev/null... | |
394 | */ | |
395 | ||
396 | if ((i = open("/dev/null", O_RDONLY)) != 0) | |
397 | { | |
398 | dup2(i, 0); | |
399 | close(i); | |
400 | } | |
401 | ||
402 | if ((i = open("/dev/null", O_WRONLY)) != 1) | |
403 | { | |
404 | dup2(i, 1); | |
405 | close(i); | |
406 | } | |
407 | ||
408 | if ((i = open("/dev/null", O_WRONLY)) != 2) | |
409 | { | |
410 | dup2(i, 2); | |
411 | close(i); | |
412 | } | |
413 | } | |
a1797929 MS |
414 | else |
415 | LogStderr = cupsFileStderr(); | |
108f7505 | 416 | |
ef416fc2 | 417 | /* |
108f7505 | 418 | * Run in the background as needed... |
ef416fc2 | 419 | */ |
420 | ||
421 | if (!fg) | |
422 | { | |
423 | /* | |
424 | * Setup signal handlers for the parent... | |
425 | */ | |
426 | ||
427 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
428 | sigset(SIGUSR1, parent_handler); | |
429 | sigset(SIGCHLD, parent_handler); | |
430 | ||
431 | sigset(SIGHUP, SIG_IGN); | |
432 | #elif defined(HAVE_SIGACTION) | |
433 | memset(&action, 0, sizeof(action)); | |
434 | sigemptyset(&action.sa_mask); | |
435 | sigaddset(&action.sa_mask, SIGUSR1); | |
436 | action.sa_handler = parent_handler; | |
437 | sigaction(SIGUSR1, &action, NULL); | |
438 | sigaction(SIGCHLD, &action, NULL); | |
439 | ||
440 | sigemptyset(&action.sa_mask); | |
441 | action.sa_handler = SIG_IGN; | |
442 | sigaction(SIGHUP, &action, NULL); | |
443 | #else | |
444 | signal(SIGUSR1, parent_handler); | |
445 | signal(SIGCLD, parent_handler); | |
446 | ||
447 | signal(SIGHUP, SIG_IGN); | |
448 | #endif /* HAVE_SIGSET */ | |
449 | ||
450 | if (fork() > 0) | |
451 | { | |
452 | /* | |
453 | * OK, wait for the child to startup and send us SIGUSR1 or to crash | |
454 | * and the OS send us SIGCHLD... We also need to ignore SIGHUP which | |
455 | * might be sent by the init script to restart the scheduler... | |
456 | */ | |
457 | ||
458 | for (; parent_signal == 0;) | |
459 | sleep(1); | |
460 | ||
461 | if (parent_signal == SIGUSR1) | |
462 | return (0); | |
463 | ||
464 | if (wait(&i) < 0) | |
465 | { | |
466 | perror("cupsd"); | |
467 | return (1); | |
468 | } | |
469 | else if (WIFEXITED(i)) | |
470 | { | |
4d301e69 | 471 | fprintf(stderr, "cupsd: Child exited with status %d\n", |
bd7854cb | 472 | WEXITSTATUS(i)); |
ef416fc2 | 473 | return (2); |
474 | } | |
475 | else | |
476 | { | |
4d301e69 | 477 | fprintf(stderr, "cupsd: Child exited on signal %d\n", WTERMSIG(i)); |
ef416fc2 | 478 | return (3); |
479 | } | |
480 | } | |
a41f09e2 | 481 | |
3dd9c340 | 482 | #if defined(__OpenBSD__) && OpenBSD < 201211 |
68b10830 MS |
483 | /* |
484 | * Call _thread_sys_closefrom() so the child process doesn't reset the | |
485 | * parent's file descriptors to be blocking. This is a workaround for a | |
3dd9c340 | 486 | * limitation of userland libpthread on older versions of OpenBSD. |
68b10830 | 487 | */ |
ef55b745 | 488 | |
68b10830 | 489 | _thread_sys_closefrom(0); |
3dd9c340 | 490 | #endif /* __OpenBSD__ && OpenBSD < 201211 */ |
68b10830 | 491 | |
a41f09e2 | 492 | /* |
108f7505 MS |
493 | * Since many system libraries create fork-unsafe data on execution of a |
494 | * program, we need to re-execute the background cupsd with the "-C" and "-s" | |
495 | * options to avoid problems. Unfortunately, we also have to assume that | |
496 | * argv[0] contains the name of the cupsd executable - there is no portable | |
497 | * way to get the real pathname... | |
a41f09e2 MS |
498 | */ |
499 | ||
108f7505 | 500 | execlp(argv[0], argv[0], "-C", ConfigurationFile, "-s", CupsFilesFile, (char *)0); |
a41f09e2 | 501 | exit(errno); |
ef416fc2 | 502 | } |
503 | ||
ef416fc2 | 504 | /* |
505 | * Set the timezone info... | |
506 | */ | |
507 | ||
508 | tzset(); | |
509 | ||
510 | #ifdef LC_TIME | |
511 | setlocale(LC_TIME, ""); | |
512 | #endif /* LC_TIME */ | |
513 | ||
0cf0c416 MS |
514 | #ifdef HAVE_DBUS_THREADS_INIT |
515 | /* | |
516 | * Enable threading support for D-BUS... | |
517 | */ | |
518 | ||
e7f455a5 | 519 | dbus_threads_init_default(); |
0cf0c416 MS |
520 | #endif /* HAVE_DBUS_THREADS_INIT */ |
521 | ||
ef416fc2 | 522 | /* |
523 | * Set the maximum number of files... | |
524 | */ | |
525 | ||
526 | getrlimit(RLIMIT_NOFILE, &limit); | |
527 | ||
f7deaa1a | 528 | #if !defined(HAVE_POLL) && !defined(HAVE_EPOLL) && !defined(HAVE_KQUEUE) |
f7faf1f5 | 529 | if (limit.rlim_max > FD_SETSIZE) |
530 | MaxFDs = FD_SETSIZE; | |
ef416fc2 | 531 | else |
f7deaa1a | 532 | #endif /* !HAVE_POLL && !HAVE_EPOLL && !HAVE_KQUEUE */ |
533 | #ifdef RLIM_INFINITY | |
534 | if (limit.rlim_max == RLIM_INFINITY) | |
535 | MaxFDs = 16384; | |
536 | else | |
537 | #endif /* RLIM_INFINITY */ | |
ef416fc2 | 538 | MaxFDs = limit.rlim_max; |
539 | ||
7e86f2f6 | 540 | limit.rlim_cur = (rlim_t)MaxFDs; |
ef416fc2 | 541 | |
542 | setrlimit(RLIMIT_NOFILE, &limit); | |
543 | ||
f7deaa1a | 544 | cupsdStartSelect(); |
ef416fc2 | 545 | |
546 | /* | |
547 | * Read configuration... | |
548 | */ | |
549 | ||
550 | if (!cupsdReadConfiguration()) | |
ef416fc2 | 551 | return (1); |
2e4ff8af MS |
552 | else if (TestConfigFile) |
553 | { | |
cb7f98ee MS |
554 | printf("\"%s\" is OK.\n", CupsFilesFile); |
555 | printf("\"%s\" is OK.\n", ConfigurationFile); | |
2e4ff8af MS |
556 | return (0); |
557 | } | |
2dd94018 MS |
558 | else if (print_profile) |
559 | { | |
560 | cups_file_t *fp; /* File pointer */ | |
561 | const char *profile = cupsdCreateProfile(42, 0); | |
562 | /* Profile */ | |
563 | char line[1024]; /* Line from file */ | |
564 | ||
565 | ||
566 | if ((fp = cupsFileOpen(profile, "r")) == NULL) | |
567 | { | |
568 | printf("Unable to open profile file \"%s\": %s\n", profile ? profile : "(null)", strerror(errno)); | |
569 | return (1); | |
570 | } | |
571 | ||
572 | while (cupsFileGets(fp, line, sizeof(line))) | |
573 | puts(line); | |
574 | ||
575 | cupsFileClose(fp); | |
576 | ||
577 | return (0); | |
578 | } | |
ef416fc2 | 579 | |
ba55dc12 MS |
580 | /* |
581 | * Clean out old temp files and printer cache data. | |
582 | */ | |
cc0d019f | 583 | |
ba55dc12 | 584 | if (!strncmp(TempDir, RequestRoot, strlen(RequestRoot))) |
321d8d57 | 585 | cupsdCleanFiles(TempDir, NULL); |
cc0d019f | 586 | |
321d8d57 | 587 | cupsdCleanFiles(CacheDir, "*.ipp"); |
cc0d019f | 588 | |
1720786e MS |
589 | #if defined(HAVE_LAUNCHD) || defined(HAVE_SYSTEMD) |
590 | if (OnDemand) | |
a4d04587 | 591 | { |
592 | /* | |
1720786e MS |
593 | * If we were started on demand by launchd or systemd get the listen sockets |
594 | * file descriptors... | |
f7deaa1a | 595 | */ |
a4d04587 | 596 | |
1720786e MS |
597 | service_checkin(); |
598 | service_checkout(); | |
a4d04587 | 599 | } |
1720786e | 600 | #endif /* HAVE_LAUNCHD || HAVE_SYSTEMD */ |
a4d04587 | 601 | |
602 | /* | |
603 | * Startup the server... | |
604 | */ | |
605 | ||
6d2f911b MS |
606 | httpInitialize(); |
607 | ||
a4d04587 | 608 | cupsdStartServer(); |
609 | ||
ef416fc2 | 610 | /* |
611 | * Catch hangup and child signals and ignore broken pipes... | |
612 | */ | |
613 | ||
614 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
e1d6a774 | 615 | sigset(SIGCHLD, sigchld_handler); |
4744bd90 | 616 | sigset(SIGHUP, sighup_handler); |
ef416fc2 | 617 | sigset(SIGPIPE, SIG_IGN); |
618 | sigset(SIGTERM, sigterm_handler); | |
619 | #elif defined(HAVE_SIGACTION) | |
620 | memset(&action, 0, sizeof(action)); | |
621 | ||
e1d6a774 | 622 | sigemptyset(&action.sa_mask); |
623 | sigaddset(&action.sa_mask, SIGTERM); | |
624 | sigaddset(&action.sa_mask, SIGCHLD); | |
625 | action.sa_handler = sigchld_handler; | |
626 | sigaction(SIGCHLD, &action, NULL); | |
627 | ||
ef416fc2 | 628 | sigemptyset(&action.sa_mask); |
629 | sigaddset(&action.sa_mask, SIGHUP); | |
4744bd90 | 630 | action.sa_handler = sighup_handler; |
ef416fc2 | 631 | sigaction(SIGHUP, &action, NULL); |
632 | ||
633 | sigemptyset(&action.sa_mask); | |
634 | action.sa_handler = SIG_IGN; | |
635 | sigaction(SIGPIPE, &action, NULL); | |
636 | ||
637 | sigemptyset(&action.sa_mask); | |
638 | sigaddset(&action.sa_mask, SIGTERM); | |
639 | sigaddset(&action.sa_mask, SIGCHLD); | |
640 | action.sa_handler = sigterm_handler; | |
641 | sigaction(SIGTERM, &action, NULL); | |
642 | #else | |
e1d6a774 | 643 | signal(SIGCLD, sigchld_handler); /* No, SIGCLD isn't a typo... */ |
4744bd90 | 644 | signal(SIGHUP, sighup_handler); |
ef416fc2 | 645 | signal(SIGPIPE, SIG_IGN); |
646 | signal(SIGTERM, sigterm_handler); | |
647 | #endif /* HAVE_SIGSET */ | |
648 | ||
ef416fc2 | 649 | /* |
650 | * Initialize authentication certificates... | |
651 | */ | |
652 | ||
653 | cupsdInitCerts(); | |
654 | ||
655 | /* | |
656 | * If we are running in the background, signal the parent process that | |
657 | * we are up and running... | |
658 | */ | |
659 | ||
a41f09e2 | 660 | if (!fg || run_as_child) |
ef416fc2 | 661 | { |
662 | /* | |
663 | * Send a signal to the parent process, but only if the parent is | |
664 | * not PID 1 (init). This avoids accidentally shutting down the | |
665 | * system on OpenBSD if you CTRL-C the server before it is up... | |
666 | */ | |
667 | ||
668 | i = getppid(); /* Save parent PID to avoid race condition */ | |
669 | ||
670 | if (i != 1) | |
671 | kill(i, SIGUSR1); | |
672 | } | |
673 | ||
e1d6a774 | 674 | #ifdef __APPLE__ |
09ec0018 | 675 | /* |
676 | * Start power management framework... | |
677 | */ | |
678 | ||
1340db2d MS |
679 | if (use_sysman) |
680 | cupsdStartSystemMonitor(); | |
e1d6a774 | 681 | #endif /* __APPLE__ */ |
ef416fc2 | 682 | |
49d87452 MS |
683 | /* |
684 | * Send server-started event... | |
685 | */ | |
686 | ||
1720786e MS |
687 | #if defined(HAVE_LAUNCHD) || defined(HAVE_SYSTEMD) |
688 | if (OnDemand) | |
689 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, "Scheduler started on demand."); | |
49d87452 | 690 | else |
1720786e | 691 | #endif /* HAVE_LAUNCHD || HAVE_SYSTEMD */ |
49d87452 | 692 | if (fg) |
1720786e | 693 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, "Scheduler started in foreground."); |
49d87452 | 694 | else |
1720786e | 695 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, "Scheduler started in background."); |
49d87452 | 696 | |
ef416fc2 | 697 | /* |
698 | * Start any pending print jobs... | |
699 | */ | |
700 | ||
701 | cupsdCheckJobs(); | |
702 | ||
703 | /* | |
704 | * Loop forever... | |
705 | */ | |
706 | ||
50fe7201 | 707 | current_time = time(NULL); |
50fe7201 MS |
708 | event_time = current_time; |
709 | expire_time = current_time; | |
ef416fc2 | 710 | fds = 1; |
5bd77a73 | 711 | report_time = 0; |
50fe7201 | 712 | senddoc_time = current_time; |
ef416fc2 | 713 | |
714 | while (!stop_scheduler) | |
715 | { | |
ef416fc2 | 716 | /* |
717 | * Check if there are dead children to handle... | |
718 | */ | |
719 | ||
720 | if (dead_children) | |
721 | process_children(); | |
722 | ||
723 | /* | |
724 | * Check if we need to load the server configuration file... | |
725 | */ | |
726 | ||
727 | if (NeedReload) | |
728 | { | |
729 | /* | |
730 | * Close any idle clients... | |
731 | */ | |
732 | ||
bd7854cb | 733 | if (cupsArrayCount(Clients) > 0) |
ef416fc2 | 734 | { |
bd7854cb | 735 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
736 | con; | |
737 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
996acce8 | 738 | if (httpGetState(con->http) == HTTP_WAITING) |
ef416fc2 | 739 | cupsdCloseClient(con); |
ef416fc2 | 740 | else |
996acce8 | 741 | con->http->keep_alive = HTTP_KEEPALIVE_OFF; |
ef416fc2 | 742 | |
743 | cupsdPauseListening(); | |
744 | } | |
745 | ||
ef416fc2 | 746 | /* |
747 | * Restart if all clients are closed and all jobs finished, or | |
748 | * if the reload timeout has elapsed... | |
749 | */ | |
750 | ||
bd7854cb | 751 | if ((cupsArrayCount(Clients) == 0 && |
238c3832 | 752 | (cupsArrayCount(PrintingJobs) == 0 || NeedReload != RELOAD_ALL)) || |
ef416fc2 | 753 | (time(NULL) - ReloadTime) >= ReloadTimeout) |
754 | { | |
a4d04587 | 755 | /* |
756 | * Shutdown the server... | |
757 | */ | |
758 | ||
7cf5915e MS |
759 | DoingShutdown = 1; |
760 | ||
a4d04587 | 761 | cupsdStopServer(); |
762 | ||
763 | /* | |
764 | * Read configuration... | |
765 | */ | |
766 | ||
ef416fc2 | 767 | if (!cupsdReadConfiguration()) |
768 | { | |
a1797929 MS |
769 | #ifdef HAVE_ASL_H |
770 | asl_object_t m; /* Log message */ | |
771 | ||
772 | m = asl_new(ASL_TYPE_MSG); | |
773 | asl_set(m, ASL_KEY_FACILITY, "org.cups.cupsd"); | |
774 | asl_log(NULL, m, ASL_LEVEL_ERR, "Unable to read configuration file \"%s\" - exiting.", ConfigurationFile); | |
775 | asl_release(m); | |
776 | #elif defined(HAVE_SYSTEMD_SD_JOURNAL_H) | |
777 | sd_journal_print(LOG_ERR, "Unable to read configuration file \"%s\" - exiting.", ConfigurationFile); | |
778 | #else | |
779 | syslog(LOG_LPR, "Unable to read configuration file \'%s\' - exiting.", ConfigurationFile); | |
780 | #endif /* HAVE_ASL_H */ | |
781 | ||
ef416fc2 | 782 | break; |
783 | } | |
a4d04587 | 784 | |
a4d04587 | 785 | /* |
786 | * Startup the server... | |
787 | */ | |
788 | ||
7cf5915e MS |
789 | DoingShutdown = 0; |
790 | ||
a4d04587 | 791 | cupsdStartServer(); |
49d87452 MS |
792 | |
793 | /* | |
794 | * Send a server-restarted event... | |
795 | */ | |
796 | ||
797 | cupsdAddEvent(CUPSD_EVENT_SERVER_RESTARTED, NULL, NULL, | |
798 | "Scheduler restarted."); | |
ef416fc2 | 799 | } |
800 | } | |
801 | ||
802 | /* | |
f7deaa1a | 803 | * Check for available input or ready output. If cupsdDoSelect() |
804 | * returns 0 or -1, something bad happened and we should exit | |
805 | * immediately. | |
ef416fc2 | 806 | * |
807 | * Note that we at least have one listening socket open at all | |
808 | * times. | |
809 | */ | |
810 | ||
50fe7201 MS |
811 | if ((timeout = select_timeout(fds)) > 1 && LastEvent) |
812 | timeout = 1; | |
ef416fc2 | 813 | |
1720786e | 814 | #if defined(HAVE_LAUNCHD) || defined(HAVE_SYSTEMD) |
a4d04587 | 815 | /* |
816 | * If no other work is scheduled and we're being controlled by | |
411affcf | 817 | * launchd then timeout after 'LaunchdTimeout' seconds of |
a4d04587 | 818 | * inactivity... |
819 | */ | |
820 | ||
1720786e | 821 | if (timeout == 86400 && OnDemand && IdleExitTimeout && |
bc44d920 | 822 | !cupsArrayCount(ActiveJobs) && |
0627e869 MS |
823 | # ifdef HAVE_SYSTEMD |
824 | !WebInterface && | |
825 | # endif /* HAVE_SYSTEMD */ | |
a2326b5b | 826 | (!Browsing || !BrowseLocalProtocols || !cupsArrayCount(Printers))) |
a4d04587 | 827 | { |
1720786e MS |
828 | timeout = IdleExitTimeout; |
829 | service_idle_exit = 1; | |
a4d04587 | 830 | } |
831 | else | |
1720786e MS |
832 | service_idle_exit = 0; |
833 | #endif /* HAVE_LAUNCHD || HAVE_SYSTEMD */ | |
a4d04587 | 834 | |
f7deaa1a | 835 | if ((fds = cupsdDoSelect(timeout)) < 0) |
ef416fc2 | 836 | { |
ef416fc2 | 837 | /* |
838 | * Got an error from select! | |
839 | */ | |
840 | ||
37e7e6e0 | 841 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
f7deaa1a | 842 | cupsd_printer_t *p; /* Current printer */ |
37e7e6e0 | 843 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
f7deaa1a | 844 | |
845 | ||
846 | if (errno == EINTR) /* Just interrupted by a signal */ | |
ef416fc2 | 847 | continue; |
848 | ||
849 | /* | |
850 | * Log all sorts of debug info to help track down the problem. | |
851 | */ | |
852 | ||
f7deaa1a | 853 | cupsdLogMessage(CUPSD_LOG_EMERG, "cupsdDoSelect() failed - %s!", |
ef416fc2 | 854 | strerror(errno)); |
855 | ||
bd7854cb | 856 | for (i = 0, con = (cupsd_client_t *)cupsArrayFirst(Clients); |
857 | con; | |
858 | i ++, con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 859 | cupsdLogMessage(CUPSD_LOG_EMERG, |
860 | "Clients[%d] = %d, file = %d, state = %d", | |
996acce8 | 861 | i, con->number, con->file, httpGetState(con->http)); |
ef416fc2 | 862 | |
bd7854cb | 863 | for (i = 0, lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); |
864 | lis; | |
865 | i ++, lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
ef416fc2 | 866 | cupsdLogMessage(CUPSD_LOG_EMERG, "Listeners[%d] = %d", i, lis->fd); |
867 | ||
923edb68 | 868 | cupsdLogMessage(CUPSD_LOG_EMERG, "CGIPipes[0] = %d", CGIPipes[0]); |
869 | ||
09ec0018 | 870 | #ifdef __APPLE__ |
871 | cupsdLogMessage(CUPSD_LOG_EMERG, "SysEventPipes[0] = %d", | |
872 | SysEventPipes[0]); | |
873 | #endif /* __APPLE__ */ | |
874 | ||
ef416fc2 | 875 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); |
876 | job; | |
877 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
878 | cupsdLogMessage(CUPSD_LOG_EMERG, "Jobs[%d] = %d < [%d %d] > [%d %d]", | |
879 | job->id, | |
880 | job->status_buffer ? job->status_buffer->fd : -1, | |
881 | job->print_pipes[0], job->print_pipes[1], | |
882 | job->back_pipes[0], job->back_pipes[1]); | |
f7deaa1a | 883 | |
37e7e6e0 | 884 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
f7deaa1a | 885 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); |
886 | p; | |
887 | p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
7a14d768 MS |
888 | cupsdLogMessage(CUPSD_LOG_EMERG, "printer[%s] reg_name=\"%s\"", p->name, |
889 | p->reg_name ? p->reg_name : "(null)"); | |
37e7e6e0 | 890 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
f7deaa1a | 891 | |
ef416fc2 | 892 | break; |
893 | } | |
894 | ||
895 | current_time = time(NULL); | |
896 | ||
3dfe78b3 MS |
897 | /* |
898 | * Write dirty config/state files... | |
899 | */ | |
900 | ||
901 | if (DirtyCleanTime && current_time >= DirtyCleanTime) | |
3dfe78b3 | 902 | cupsdCleanDirty(); |
3dfe78b3 | 903 | |
e6013cfa MS |
904 | #ifdef __APPLE__ |
905 | /* | |
906 | * If we are going to sleep and still have pending jobs, stop them after | |
907 | * a period of time... | |
908 | */ | |
909 | ||
910 | if (SleepJobs > 0 && current_time >= SleepJobs && | |
911 | cupsArrayCount(PrintingJobs) > 0) | |
912 | { | |
913 | SleepJobs = 0; | |
e60ec91f | 914 | cupsdStopAllJobs(CUPSD_JOB_DEFAULT, 5); |
e6013cfa MS |
915 | } |
916 | #endif /* __APPLE__ */ | |
917 | ||
a4924f6c MS |
918 | #ifndef __APPLE__ |
919 | /* | |
920 | * Update the network interfaces once a minute... | |
921 | */ | |
922 | ||
923 | if ((current_time - netif_time) >= 60) | |
924 | { | |
925 | netif_time = current_time; | |
926 | NetIFUpdate = 1; | |
927 | } | |
928 | #endif /* !__APPLE__ */ | |
929 | ||
1720786e | 930 | #if defined(HAVE_LAUNCHD) || defined(HAVE_SYSTEMD) |
a4d04587 | 931 | /* |
411affcf | 932 | * If no other work was scheduled and we're being controlled by launchd |
a4d04587 | 933 | * then timeout after 'LaunchdTimeout' seconds of inactivity... |
934 | */ | |
935 | ||
1720786e | 936 | if (!fds && service_idle_exit) |
a4d04587 | 937 | { |
938 | cupsdLogMessage(CUPSD_LOG_INFO, | |
939 | "Printer sharing is off and there are no jobs pending, " | |
940 | "will restart on demand."); | |
941 | stop_scheduler = 1; | |
942 | break; | |
943 | } | |
1720786e | 944 | #endif /* HAVE_LAUNCHD || HAVE_SYSTEMD */ |
a4d04587 | 945 | |
76cd9e37 MS |
946 | /* |
947 | * Resume listening for new connections as needed... | |
948 | */ | |
949 | ||
950 | if (ListeningPaused && ListeningPaused <= current_time && | |
951 | cupsArrayCount(Clients) < MaxClients) | |
952 | cupsdResumeListening(); | |
953 | ||
ef416fc2 | 954 | /* |
bd7854cb | 955 | * Expire subscriptions and unload completed jobs as needed... |
ef416fc2 | 956 | */ |
957 | ||
bd7854cb | 958 | if (current_time > expire_time) |
ef416fc2 | 959 | { |
bd7854cb | 960 | if (cupsArrayCount(Subscriptions) > 0) |
961 | cupsdExpireSubscriptions(NULL, NULL); | |
962 | ||
963 | cupsdUnloadCompletedJobs(); | |
ef416fc2 | 964 | |
965 | expire_time = current_time; | |
966 | } | |
967 | ||
07ed0e9a | 968 | #ifndef HAVE_AUTHORIZATION_H |
ef416fc2 | 969 | /* |
f7deaa1a | 970 | * Update the root certificate once every 5 minutes if we have client |
971 | * connections... | |
ef416fc2 | 972 | */ |
973 | ||
f7deaa1a | 974 | if ((current_time - RootCertTime) >= RootCertDuration && RootCertDuration && |
975 | !RunUser && cupsArrayCount(Clients)) | |
976 | { | |
977 | /* | |
978 | * Update the root certificate... | |
979 | */ | |
980 | ||
981 | cupsdDeleteCert(0); | |
0fa6c7fa | 982 | cupsdAddCert(0, "root", cupsdDefaultAuthType()); |
f7deaa1a | 983 | } |
07ed0e9a | 984 | #endif /* !HAVE_AUTHORIZATION_H */ |
ef416fc2 | 985 | |
986 | /* | |
987 | * Check for new data on the client sockets... | |
988 | */ | |
989 | ||
bd7854cb | 990 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
991 | con; | |
992 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 993 | { |
994 | /* | |
f7deaa1a | 995 | * Process pending data in the input buffer... |
ef416fc2 | 996 | */ |
997 | ||
1720786e | 998 | if (httpGetReady(con->http)) |
ef416fc2 | 999 | { |
f7deaa1a | 1000 | cupsdReadClient(con); |
1001 | continue; | |
ef416fc2 | 1002 | } |
1003 | ||
1004 | /* | |
1005 | * Check the activity and close old clients... | |
1006 | */ | |
1007 | ||
1008 | activity = current_time - Timeout; | |
1720786e | 1009 | if (httpGetActivity(con->http) < activity && !con->pipe_pid) |
ef416fc2 | 1010 | { |
1720786e | 1011 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Closing client %d after %d seconds of inactivity.", con->number, Timeout); |
ef416fc2 | 1012 | |
1013 | cupsdCloseClient(con); | |
ef416fc2 | 1014 | continue; |
1015 | } | |
1016 | } | |
1017 | ||
1018 | /* | |
1019 | * Update any pending multi-file documents... | |
1020 | */ | |
1021 | ||
1022 | if ((current_time - senddoc_time) >= 10) | |
1023 | { | |
1024 | cupsdCheckJobs(); | |
1025 | senddoc_time = current_time; | |
1026 | } | |
1027 | ||
82cc1f9a MS |
1028 | /* |
1029 | * Clean job history... | |
1030 | */ | |
1031 | ||
1032 | if (JobHistoryUpdate && current_time >= JobHistoryUpdate) | |
1033 | cupsdCleanJobs(); | |
1034 | ||
ef416fc2 | 1035 | /* |
5bd77a73 | 1036 | * Log statistics at most once a minute when in debug mode... |
ef416fc2 | 1037 | */ |
1038 | ||
5bd77a73 | 1039 | if ((current_time - report_time) >= 60 && LogLevel >= CUPSD_LOG_DEBUG) |
ef416fc2 | 1040 | { |
5bd77a73 MS |
1041 | size_t string_count, /* String count */ |
1042 | alloc_bytes, /* Allocated string bytes */ | |
1043 | total_bytes; /* Total string bytes */ | |
4400e98d | 1044 | #ifdef HAVE_MALLINFO |
5bd77a73 | 1045 | struct mallinfo mem; /* Malloc information */ |
ef416fc2 | 1046 | |
1047 | ||
1048 | mem = mallinfo(); | |
5bd77a73 MS |
1049 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-arena=%lu", mem.arena); |
1050 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-used=%lu", | |
1051 | mem.usmblks + mem.uordblks); | |
1052 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-free=%lu", | |
ef416fc2 | 1053 | mem.fsmblks + mem.fordblks); |
4400e98d | 1054 | #endif /* HAVE_MALLINFO */ |
1055 | ||
5bd77a73 MS |
1056 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: clients=%d", |
1057 | cupsArrayCount(Clients)); | |
1058 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: jobs=%d", | |
1059 | cupsArrayCount(Jobs)); | |
1060 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: jobs-active=%d", | |
1061 | cupsArrayCount(ActiveJobs)); | |
1062 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: printers=%d", | |
1063 | cupsArrayCount(Printers)); | |
5bd77a73 | 1064 | |
757d2cad | 1065 | string_count = _cupsStrStatistics(&alloc_bytes, &total_bytes); |
5bd77a73 MS |
1066 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
1067 | "Report: stringpool-string-count=" CUPS_LLFMT, | |
1068 | CUPS_LLCAST string_count); | |
1069 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1070 | "Report: stringpool-alloc-bytes=" CUPS_LLFMT, | |
1071 | CUPS_LLCAST alloc_bytes); | |
1072 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1073 | "Report: stringpool-total-bytes=" CUPS_LLFMT, | |
4400e98d | 1074 | CUPS_LLCAST total_bytes); |
1075 | ||
5bd77a73 | 1076 | report_time = current_time; |
ef416fc2 | 1077 | } |
ef416fc2 | 1078 | |
fa73b229 | 1079 | /* |
1080 | * Handle OS-specific event notification for any events that have | |
1081 | * accumulated. Don't send these more than once a second... | |
1082 | */ | |
1083 | ||
50fe7201 | 1084 | if (LastEvent && (current_time - event_time) >= 1) |
fa73b229 | 1085 | { |
1086 | #ifdef HAVE_NOTIFY_POST | |
a41f09e2 MS |
1087 | if (LastEvent & (CUPSD_EVENT_PRINTER_ADDED | |
1088 | CUPSD_EVENT_PRINTER_DELETED | | |
1089 | CUPSD_EVENT_PRINTER_MODIFIED)) | |
fa73b229 | 1090 | { |
e00b005a | 1091 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1092 | "notify_post(\"com.apple.printerListChange\")"); |
1093 | notify_post("com.apple.printerListChange"); | |
1094 | } | |
1095 | ||
1096 | if (LastEvent & CUPSD_EVENT_PRINTER_STATE_CHANGED) | |
1097 | { | |
e00b005a | 1098 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1099 | "notify_post(\"com.apple.printerHistoryChange\")"); |
1100 | notify_post("com.apple.printerHistoryChange"); | |
1101 | } | |
1102 | ||
1103 | if (LastEvent & (CUPSD_EVENT_JOB_STATE_CHANGED | | |
1104 | CUPSD_EVENT_JOB_CONFIG_CHANGED | | |
1105 | CUPSD_EVENT_JOB_PROGRESS)) | |
1106 | { | |
e00b005a | 1107 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1108 | "notify_post(\"com.apple.jobChange\")"); |
1109 | notify_post("com.apple.jobChange"); | |
1110 | } | |
1111 | #endif /* HAVE_NOTIFY_POST */ | |
1112 | ||
1113 | /* | |
e53920b9 | 1114 | * Reset the accumulated events... |
fa73b229 | 1115 | */ |
1116 | ||
50fe7201 MS |
1117 | LastEvent = CUPSD_EVENT_NONE; |
1118 | event_time = current_time; | |
fa73b229 | 1119 | } |
ef416fc2 | 1120 | } |
1121 | ||
1122 | /* | |
1123 | * Log a message based on what happened... | |
1124 | */ | |
1125 | ||
1126 | if (stop_scheduler) | |
49d87452 | 1127 | { |
ef416fc2 | 1128 | cupsdLogMessage(CUPSD_LOG_INFO, "Scheduler shutting down normally."); |
49d87452 MS |
1129 | cupsdAddEvent(CUPSD_EVENT_SERVER_STOPPED, NULL, NULL, |
1130 | "Scheduler shutting down normally."); | |
1131 | } | |
ef416fc2 | 1132 | else |
49d87452 | 1133 | { |
ef416fc2 | 1134 | cupsdLogMessage(CUPSD_LOG_ERROR, |
1135 | "Scheduler shutting down due to program error."); | |
49d87452 MS |
1136 | cupsdAddEvent(CUPSD_EVENT_SERVER_STOPPED, NULL, NULL, |
1137 | "Scheduler shutting down due to program error."); | |
1138 | } | |
ef416fc2 | 1139 | |
1140 | /* | |
7ff4fea9 | 1141 | * Close all network clients... |
ef416fc2 | 1142 | */ |
1143 | ||
7cf5915e MS |
1144 | DoingShutdown = 1; |
1145 | ||
ef416fc2 | 1146 | cupsdStopServer(); |
1147 | ||
1720786e | 1148 | #if defined(HAVE_LAUNCHD) || defined(HAVE_SYSTEMD) |
7ff4fea9 | 1149 | /* |
1720786e | 1150 | * Update the keep-alive file as needed... |
7ff4fea9 MS |
1151 | */ |
1152 | ||
1720786e MS |
1153 | if (OnDemand) |
1154 | service_checkout(); | |
1155 | #endif /* HAVE_LAUNCHD || HAVE_SYSTEMD */ | |
7ff4fea9 MS |
1156 | |
1157 | /* | |
1158 | * Stop all jobs... | |
1159 | */ | |
1160 | ||
bd7854cb | 1161 | cupsdFreeAllJobs(); |
ef416fc2 | 1162 | |
e1d6a774 | 1163 | #ifdef __APPLE__ |
7ff4fea9 MS |
1164 | /* |
1165 | * Stop monitoring system event monitoring... | |
1166 | */ | |
1167 | ||
1340db2d MS |
1168 | if (use_sysman) |
1169 | cupsdStopSystemMonitor(); | |
e1d6a774 | 1170 | #endif /* __APPLE__ */ |
09ec0018 | 1171 | |
f7deaa1a | 1172 | cupsdStopSelect(); |
ef416fc2 | 1173 | |
1174 | return (!stop_scheduler); | |
1175 | } | |
1176 | ||
1177 | ||
10d09e33 MS |
1178 | /* |
1179 | * 'cupsdAddString()' - Copy and add a string to an array. | |
1180 | */ | |
1181 | ||
1182 | int /* O - 1 on success, 0 on failure */ | |
1183 | cupsdAddString(cups_array_t **a, /* IO - String array */ | |
1184 | const char *s) /* I - String to copy and add */ | |
1185 | { | |
1186 | if (!*a) | |
1187 | *a = cupsArrayNew3((cups_array_func_t)strcmp, NULL, | |
1188 | (cups_ahash_func_t)NULL, 0, | |
5e6c3df7 MS |
1189 | (cups_acopy_func_t)strdup, |
1190 | (cups_afree_func_t)free); | |
10d09e33 MS |
1191 | |
1192 | return (cupsArrayAdd(*a, (char *)s)); | |
1193 | } | |
1194 | ||
1195 | ||
d7871c8c MS |
1196 | /* |
1197 | * 'cupsdCheckProcess()' - Tell the main loop to check for dead children. | |
1198 | */ | |
1199 | ||
1200 | void | |
1201 | cupsdCheckProcess(void) | |
1202 | { | |
1203 | /* | |
1204 | * Flag that we have dead children... | |
1205 | */ | |
1206 | ||
1207 | dead_children = 1; | |
1208 | } | |
1209 | ||
1210 | ||
10d09e33 MS |
1211 | /* |
1212 | * 'cupsdClearString()' - Clear a string. | |
1213 | */ | |
1214 | ||
1215 | void | |
1216 | cupsdClearString(char **s) /* O - String value */ | |
1217 | { | |
1218 | if (s && *s) | |
1219 | { | |
5e6c3df7 | 1220 | free(*s); |
10d09e33 MS |
1221 | *s = NULL; |
1222 | } | |
1223 | } | |
1224 | ||
1225 | ||
10d09e33 MS |
1226 | /* |
1227 | * 'cupsdFreeStrings()' - Free an array of strings. | |
1228 | */ | |
1229 | ||
1230 | void | |
1231 | cupsdFreeStrings(cups_array_t **a) /* IO - String array */ | |
1232 | { | |
1233 | if (*a) | |
1234 | { | |
1235 | cupsArrayDelete(*a); | |
1236 | *a = NULL; | |
1237 | } | |
1238 | } | |
1239 | ||
1240 | ||
1241 | /* | |
1242 | * 'cupsdHoldSignals()' - Hold child and termination signals. | |
1243 | */ | |
1244 | ||
1245 | void | |
1246 | cupsdHoldSignals(void) | |
1247 | { | |
1248 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
1249 | sigset_t newmask; /* New POSIX signal mask */ | |
1250 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
1251 | ||
1252 | ||
1253 | holdcount ++; | |
1254 | if (holdcount > 1) | |
1255 | return; | |
1256 | ||
1257 | #ifdef HAVE_SIGSET | |
1258 | sighold(SIGTERM); | |
1259 | sighold(SIGCHLD); | |
1260 | #elif defined(HAVE_SIGACTION) | |
1261 | sigemptyset(&newmask); | |
1262 | sigaddset(&newmask, SIGTERM); | |
1263 | sigaddset(&newmask, SIGCHLD); | |
1264 | sigprocmask(SIG_BLOCK, &newmask, &holdmask); | |
1265 | #endif /* HAVE_SIGSET */ | |
1266 | } | |
1267 | ||
1268 | ||
ef416fc2 | 1269 | /* |
1270 | * 'cupsdReleaseSignals()' - Release signals for delivery. | |
1271 | */ | |
1272 | ||
1273 | void | |
1274 | cupsdReleaseSignals(void) | |
1275 | { | |
1276 | holdcount --; | |
1277 | if (holdcount > 0) | |
1278 | return; | |
1279 | ||
1280 | #ifdef HAVE_SIGSET | |
1281 | sigrelse(SIGTERM); | |
1282 | sigrelse(SIGCHLD); | |
1283 | #elif defined(HAVE_SIGACTION) | |
1284 | sigprocmask(SIG_SETMASK, &holdmask, NULL); | |
1285 | #endif /* HAVE_SIGSET */ | |
1286 | } | |
1287 | ||
1288 | ||
1289 | /* | |
1290 | * 'cupsdSetString()' - Set a string value. | |
1291 | */ | |
1292 | ||
1293 | void | |
1294 | cupsdSetString(char **s, /* O - New string */ | |
1295 | const char *v) /* I - String value */ | |
1296 | { | |
1297 | if (!s || *s == v) | |
1298 | return; | |
1299 | ||
1300 | if (*s) | |
5e6c3df7 | 1301 | free(*s); |
ef416fc2 | 1302 | |
1303 | if (v) | |
5e6c3df7 | 1304 | *s = strdup(v); |
ef416fc2 | 1305 | else |
1306 | *s = NULL; | |
1307 | } | |
1308 | ||
1309 | ||
1310 | /* | |
1311 | * 'cupsdSetStringf()' - Set a formatted string value. | |
1312 | */ | |
1313 | ||
1314 | void | |
1315 | cupsdSetStringf(char **s, /* O - New string */ | |
1316 | const char *f, /* I - Printf-style format string */ | |
1317 | ...) /* I - Additional args as needed */ | |
1318 | { | |
94436c5a | 1319 | char v[65536 + 64]; /* Formatting string value */ |
ef416fc2 | 1320 | va_list ap; /* Argument pointer */ |
1321 | char *olds; /* Old string */ | |
1322 | ||
1323 | ||
1324 | if (!s) | |
1325 | return; | |
1326 | ||
1327 | olds = *s; | |
1328 | ||
1329 | if (f) | |
1330 | { | |
1331 | va_start(ap, f); | |
1332 | vsnprintf(v, sizeof(v), f, ap); | |
1333 | va_end(ap); | |
1334 | ||
5e6c3df7 | 1335 | *s = strdup(v); |
ef416fc2 | 1336 | } |
1337 | else | |
1338 | *s = NULL; | |
1339 | ||
1340 | if (olds) | |
5e6c3df7 | 1341 | free(olds); |
ef416fc2 | 1342 | } |
1343 | ||
1344 | ||
1345 | /* | |
1346 | * 'parent_handler()' - Catch USR1/CHLD signals... | |
1347 | */ | |
1348 | ||
1349 | static void | |
1350 | parent_handler(int sig) /* I - Signal */ | |
1351 | { | |
1352 | /* | |
1353 | * Store the signal we got from the OS and return... | |
1354 | */ | |
1355 | ||
1356 | parent_signal = sig; | |
1357 | } | |
1358 | ||
1359 | ||
1360 | /* | |
1361 | * 'process_children()' - Process all dead children... | |
1362 | */ | |
1363 | ||
1364 | static void | |
1365 | process_children(void) | |
1366 | { | |
1367 | int status; /* Exit status of child */ | |
b9faaae1 MS |
1368 | int pid, /* Process ID of child */ |
1369 | job_id; /* Job ID of child */ | |
ef416fc2 | 1370 | cupsd_job_t *job; /* Current job */ |
1371 | int i; /* Looping var */ | |
e00b005a | 1372 | char name[1024]; /* Process name */ |
dcb445bc | 1373 | const char *type; /* Type of program */ |
ef416fc2 | 1374 | |
1375 | ||
1376 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "process_children()"); | |
1377 | ||
1378 | /* | |
1379 | * Reset the dead_children flag... | |
1380 | */ | |
1381 | ||
1382 | dead_children = 0; | |
1383 | ||
1384 | /* | |
1385 | * Collect the exit status of some children... | |
1386 | */ | |
1387 | ||
1388 | #ifdef HAVE_WAITPID | |
1389 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) | |
1390 | #elif defined(HAVE_WAIT3) | |
1391 | while ((pid = wait3(&status, WNOHANG, NULL)) > 0) | |
1392 | #else | |
1393 | if ((pid = wait(&status)) > 0) | |
1394 | #endif /* HAVE_WAITPID */ | |
1395 | { | |
ef416fc2 | 1396 | /* |
745129be | 1397 | * Collect the name of the process that finished... |
ef416fc2 | 1398 | */ |
1399 | ||
b9faaae1 | 1400 | cupsdFinishProcess(pid, name, sizeof(name), &job_id); |
e00b005a | 1401 | |
ef416fc2 | 1402 | /* |
1403 | * Delete certificates for CGI processes... | |
1404 | */ | |
1405 | ||
1406 | if (pid) | |
1407 | cupsdDeleteCert(pid); | |
1408 | ||
1409 | /* | |
b9faaae1 | 1410 | * Handle completed job filters... |
ef416fc2 | 1411 | */ |
1412 | ||
dcb445bc MS |
1413 | if (job_id > 0) |
1414 | job = cupsdFindJob(job_id); | |
1415 | else | |
1416 | job = NULL; | |
1417 | ||
1418 | if (job) | |
b9faaae1 MS |
1419 | { |
1420 | for (i = 0; job->filters[i]; i ++) | |
1421 | if (job->filters[i] == pid) | |
1422 | break; | |
1423 | ||
1424 | if (job->filters[i] || job->backend == pid) | |
ef416fc2 | 1425 | { |
b9faaae1 MS |
1426 | /* |
1427 | * OK, this process has gone away; what's left? | |
1428 | */ | |
1429 | ||
1430 | if (job->filters[i]) | |
dcb445bc | 1431 | { |
b9faaae1 | 1432 | job->filters[i] = -pid; |
dcb445bc MS |
1433 | type = "Filter"; |
1434 | } | |
b9faaae1 | 1435 | else |
dcb445bc | 1436 | { |
b9faaae1 | 1437 | job->backend = -pid; |
dcb445bc MS |
1438 | type = "Backend"; |
1439 | } | |
ef416fc2 | 1440 | |
b9faaae1 | 1441 | if (status && status != SIGTERM && status != SIGKILL && |
f3c17241 | 1442 | status != SIGPIPE) |
ef416fc2 | 1443 | { |
1444 | /* | |
b9faaae1 MS |
1445 | * An error occurred; save the exit status so we know to stop |
1446 | * the printer or cancel the job when all of the filters finish... | |
1447 | * | |
1448 | * A negative status indicates that the backend failed and the | |
1449 | * printer needs to be stopped. | |
f3c17241 MS |
1450 | * |
1451 | * In order to preserve the most serious status, we always log | |
1452 | * when a process dies due to a signal (e.g. SIGABRT, SIGSEGV, | |
1453 | * and SIGBUS) and prefer to log the backend exit status over a | |
1454 | * filter's. | |
ef416fc2 | 1455 | */ |
1456 | ||
f3c17241 MS |
1457 | int old_status = abs(job->status); |
1458 | ||
1459 | if (WIFSIGNALED(status) || /* This process crashed, or */ | |
1460 | !job->status || /* No process had a status, or */ | |
1461 | (!job->filters[i] && WIFEXITED(old_status))) | |
1462 | { /* Backend and filter didn't crash */ | |
1463 | if (job->filters[i]) | |
1464 | job->status = status; /* Filter failed */ | |
1465 | else | |
1466 | job->status = -status; /* Backend failed */ | |
1467 | } | |
ef416fc2 | 1468 | |
f11a948a | 1469 | if (job->state_value == IPP_JOB_PROCESSING && |
dcb445bc MS |
1470 | job->status_level > CUPSD_LOG_ERROR && |
1471 | (job->filters[i] || !WIFEXITED(status))) | |
ef416fc2 | 1472 | { |
f11a948a MS |
1473 | char message[1024]; /* New printer-state-message */ |
1474 | ||
1475 | ||
b9faaae1 | 1476 | job->status_level = CUPSD_LOG_ERROR; |
ef416fc2 | 1477 | |
dcb445bc | 1478 | snprintf(message, sizeof(message), "%s failed", type); |
f11a948a | 1479 | |
e07d4801 MS |
1480 | if (job->printer) |
1481 | { | |
f11a948a MS |
1482 | strlcpy(job->printer->state_message, message, |
1483 | sizeof(job->printer->state_message)); | |
e07d4801 MS |
1484 | } |
1485 | ||
1486 | if (!job->attrs) | |
1487 | cupsdLoadJob(job); | |
e00b005a | 1488 | |
e07d4801 | 1489 | if (!job->printer_message && job->attrs) |
e00b005a | 1490 | { |
b9faaae1 MS |
1491 | if ((job->printer_message = |
1492 | ippFindAttribute(job->attrs, "job-printer-state-message", | |
1493 | IPP_TAG_TEXT)) == NULL) | |
1494 | job->printer_message = ippAddString(job->attrs, IPP_TAG_JOB, | |
1495 | IPP_TAG_TEXT, | |
1496 | "job-printer-state-message", | |
5a662dc0 | 1497 | NULL, NULL); |
e00b005a | 1498 | } |
b9faaae1 | 1499 | |
e07d4801 | 1500 | if (job->printer_message) |
5e6c3df7 | 1501 | ippSetString(job->attrs, &job->printer_message, 0, message); |
ef416fc2 | 1502 | } |
b9faaae1 | 1503 | } |
ef416fc2 | 1504 | |
b9faaae1 MS |
1505 | /* |
1506 | * If this is not the last file in a job, see if all of the | |
1507 | * filters are done, and if so move to the next file. | |
1508 | */ | |
ef416fc2 | 1509 | |
5a662dc0 | 1510 | if (job->current_file < job->num_files && job->printer) |
b9faaae1 MS |
1511 | { |
1512 | for (i = 0; job->filters[i] < 0; i ++); | |
ef416fc2 | 1513 | |
82f97232 MS |
1514 | if (!job->filters[i] && |
1515 | (!job->printer->pc || !job->printer->pc->single_file || | |
1516 | job->backend <= 0)) | |
b9faaae1 MS |
1517 | { |
1518 | /* | |
1519 | * Process the next file... | |
1520 | */ | |
ef416fc2 | 1521 | |
b9faaae1 | 1522 | cupsdContinueJob(job); |
ef416fc2 | 1523 | } |
ef416fc2 | 1524 | } |
5a662dc0 | 1525 | else if (job->state_value >= IPP_JOB_CANCELED) |
7a0cbd5e MS |
1526 | { |
1527 | /* | |
1528 | * Remove the job from the active list if there are no processes still | |
1529 | * running for it... | |
1530 | */ | |
1531 | ||
1532 | for (i = 0; job->filters[i] < 0; i++); | |
1533 | ||
1534 | if (!job->filters[i] && job->backend <= 0) | |
1535 | cupsArrayRemove(ActiveJobs, job); | |
1536 | } | |
ef416fc2 | 1537 | } |
b9faaae1 | 1538 | } |
3dfe78b3 MS |
1539 | |
1540 | /* | |
745129be MS |
1541 | * Show the exit status as needed, ignoring SIGTERM and SIGKILL errors |
1542 | * since they come when we kill/end a process... | |
3dfe78b3 MS |
1543 | */ |
1544 | ||
745129be MS |
1545 | if (status == SIGTERM || status == SIGKILL) |
1546 | { | |
dcb445bc MS |
1547 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1548 | "PID %d (%s) was terminated normally with signal %d.", pid, | |
1549 | name, status); | |
745129be | 1550 | } |
5a6b583a MS |
1551 | else if (status == SIGPIPE) |
1552 | { | |
dcb445bc MS |
1553 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1554 | "PID %d (%s) did not catch or ignore signal %d.", pid, name, | |
1555 | status); | |
5a6b583a | 1556 | } |
745129be | 1557 | else if (status) |
3dfe78b3 MS |
1558 | { |
1559 | if (WIFEXITED(status)) | |
88f9aafc MS |
1560 | { |
1561 | int code = WEXITSTATUS(status); /* Exit code */ | |
1562 | ||
1563 | if (code > 100) | |
dcb445bc MS |
1564 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1565 | "PID %d (%s) stopped with status %d (%s)", pid, name, | |
1566 | code, strerror(code - 100)); | |
88f9aafc | 1567 | else |
dcb445bc MS |
1568 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1569 | "PID %d (%s) stopped with status %d.", pid, name, code); | |
88f9aafc | 1570 | } |
3dfe78b3 | 1571 | else |
dcb445bc MS |
1572 | cupsdLogJob(job, CUPSD_LOG_DEBUG, "PID %d (%s) crashed on signal %d.", |
1573 | pid, name, WTERMSIG(status)); | |
3dfe78b3 MS |
1574 | |
1575 | if (LogLevel < CUPSD_LOG_DEBUG) | |
dcb445bc MS |
1576 | cupsdLogJob(job, CUPSD_LOG_INFO, |
1577 | "Hint: Try setting the LogLevel to \"debug\" to find out " | |
1578 | "more."); | |
3dfe78b3 MS |
1579 | } |
1580 | else | |
dcb445bc MS |
1581 | cupsdLogJob(job, CUPSD_LOG_DEBUG, "PID %d (%s) exited with no errors.", |
1582 | pid, name); | |
ef416fc2 | 1583 | } |
dfd5680b MS |
1584 | |
1585 | /* | |
1586 | * If wait*() is interrupted by a signal, tell main() to call us again... | |
1587 | */ | |
1588 | ||
1589 | if (pid < 0 && errno == EINTR) | |
1590 | dead_children = 1; | |
ef416fc2 | 1591 | } |
1592 | ||
1593 | ||
ef416fc2 | 1594 | /* |
1595 | * 'select_timeout()' - Calculate the select timeout value. | |
1596 | * | |
1597 | */ | |
1598 | ||
1599 | static long /* O - Number of seconds */ | |
bd7854cb | 1600 | select_timeout(int fds) /* I - Number of descriptors returned */ |
ef416fc2 | 1601 | { |
ef416fc2 | 1602 | long timeout; /* Timeout for select */ |
1603 | time_t now; /* Current time */ | |
1604 | cupsd_client_t *con; /* Client information */ | |
ef416fc2 | 1605 | cupsd_job_t *job; /* Job information */ |
ef416fc2 | 1606 | const char *why; /* Debugging aid */ |
1607 | ||
1608 | ||
82cc1f9a MS |
1609 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout: JobHistoryUpdate=%ld", |
1610 | (long)JobHistoryUpdate); | |
1611 | ||
ef416fc2 | 1612 | /* |
1613 | * Check to see if any of the clients have pending data to be | |
1614 | * processed; if so, the timeout should be 0... | |
1615 | */ | |
1616 | ||
bd7854cb | 1617 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
1618 | con; | |
1619 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
1720786e | 1620 | if (httpGetReady(con->http)) |
ef416fc2 | 1621 | return (0); |
1622 | ||
1623 | /* | |
f7deaa1a | 1624 | * If select has been active in the last second (fds > 0) or we have |
ef416fc2 | 1625 | * many resources in use then don't bother trying to optimize the |
1626 | * timeout, just make it 1 second. | |
1627 | */ | |
1628 | ||
f7deaa1a | 1629 | if (fds > 0 || cupsArrayCount(Clients) > 50) |
ef416fc2 | 1630 | return (1); |
1631 | ||
1632 | /* | |
1633 | * Otherwise, check all of the possible events that we need to wake for... | |
1634 | */ | |
1635 | ||
1636 | now = time(NULL); | |
1637 | timeout = now + 86400; /* 86400 == 1 day */ | |
1638 | why = "do nothing"; | |
1639 | ||
e6013cfa MS |
1640 | #ifdef __APPLE__ |
1641 | /* | |
1642 | * When going to sleep, wake up to cancel jobs that don't complete in time. | |
1643 | */ | |
1644 | ||
1645 | if (SleepJobs > 0 && SleepJobs < timeout) | |
1646 | { | |
1647 | timeout = SleepJobs; | |
1648 | why = "cancel jobs before sleeping"; | |
1649 | } | |
1650 | #endif /* __APPLE__ */ | |
1651 | ||
76cd9e37 MS |
1652 | /* |
1653 | * Check whether we are accepting new connections... | |
1654 | */ | |
1655 | ||
1656 | if (ListeningPaused > 0 && cupsArrayCount(Clients) < MaxClients && | |
1657 | ListeningPaused < timeout) | |
1658 | { | |
1659 | if (ListeningPaused <= now) | |
1660 | timeout = now; | |
1661 | else | |
1662 | timeout = ListeningPaused; | |
1663 | ||
1664 | why = "resume listening"; | |
1665 | } | |
1666 | ||
ef416fc2 | 1667 | /* |
1668 | * Check the activity and close old clients... | |
1669 | */ | |
1670 | ||
bd7854cb | 1671 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
1672 | con; | |
1673 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
1720786e | 1674 | if ((httpGetActivity(con->http) + Timeout) < timeout) |
ef416fc2 | 1675 | { |
1720786e | 1676 | timeout = httpGetActivity(con->http) + Timeout; |
ef416fc2 | 1677 | why = "timeout a client connection"; |
1678 | } | |
1679 | ||
3dfe78b3 | 1680 | /* |
bf3816c7 | 1681 | * Write out changes to configuration and state files... |
3dfe78b3 MS |
1682 | */ |
1683 | ||
1684 | if (DirtyCleanTime && timeout > DirtyCleanTime) | |
1685 | { | |
1686 | timeout = DirtyCleanTime; | |
1687 | why = "write dirty config/state files"; | |
1688 | } | |
1689 | ||
ef416fc2 | 1690 | /* |
82cc1f9a | 1691 | * Check for any job activity... |
ef416fc2 | 1692 | */ |
1693 | ||
82cc1f9a MS |
1694 | if (JobHistoryUpdate && timeout > JobHistoryUpdate) |
1695 | { | |
1696 | timeout = JobHistoryUpdate; | |
1697 | why = "update job history"; | |
1698 | } | |
1699 | ||
238c3832 MS |
1700 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); |
1701 | job; | |
1702 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
ef416fc2 | 1703 | { |
82cc1f9a MS |
1704 | if (job->cancel_time && job->cancel_time < timeout) |
1705 | { | |
1706 | timeout = job->cancel_time; | |
1707 | why = "cancel stuck jobs"; | |
1708 | } | |
1709 | ||
238c3832 MS |
1710 | if (job->kill_time && job->kill_time < timeout) |
1711 | { | |
1712 | timeout = job->kill_time; | |
1713 | why = "kill unresponsive jobs"; | |
1714 | } | |
82cc1f9a MS |
1715 | |
1716 | if (job->state_value == IPP_JOB_HELD && job->hold_until < timeout) | |
238c3832 MS |
1717 | { |
1718 | timeout = job->hold_until; | |
1719 | why = "release held jobs"; | |
1720 | } | |
82cc1f9a MS |
1721 | |
1722 | if (job->state_value == IPP_JOB_PENDING && timeout > (now + 10)) | |
238c3832 MS |
1723 | { |
1724 | timeout = now + 10; | |
1725 | why = "start pending jobs"; | |
1726 | break; | |
1727 | } | |
ef416fc2 | 1728 | } |
1729 | ||
1730 | #ifdef HAVE_MALLINFO | |
1731 | /* | |
1732 | * Log memory usage every minute... | |
1733 | */ | |
1734 | ||
1735 | if (LogLevel >= CUPSD_LOG_DEBUG && (mallinfo_time + 60) < timeout) | |
1736 | { | |
1737 | timeout = mallinfo_time + 60; | |
1738 | why = "display memory usage"; | |
1739 | } | |
1740 | #endif /* HAVE_MALLINFO */ | |
1741 | ||
ef416fc2 | 1742 | /* |
dcb445bc MS |
1743 | * Adjust from absolute to relative time. We add 1 second to the timeout since |
1744 | * events occur after the timeout expires, and limit the timeout to 86400 | |
1745 | * seconds (1 day) to avoid select() timeout limits present on some operating | |
ef416fc2 | 1746 | * systems... |
1747 | */ | |
1748 | ||
1749 | timeout = timeout - now + 1; | |
1750 | ||
1751 | if (timeout < 1) | |
1752 | timeout = 1; | |
1753 | else if (timeout > 86400) | |
1754 | timeout = 86400; | |
1755 | ||
1756 | /* | |
1757 | * Log and return the timeout value... | |
1758 | */ | |
1759 | ||
f7deaa1a | 1760 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout(%d): %ld seconds to %s", |
1761 | fds, timeout, why); | |
ef416fc2 | 1762 | |
1763 | return (timeout); | |
1764 | } | |
1765 | ||
1766 | ||
e6013cfa MS |
1767 | /* |
1768 | * 'sigchld_handler()' - Handle 'child' signals from old processes. | |
1769 | */ | |
1770 | ||
1771 | static void | |
1772 | sigchld_handler(int sig) /* I - Signal number */ | |
1773 | { | |
1774 | (void)sig; | |
1775 | ||
1776 | /* | |
1777 | * Flag that we have dead children... | |
1778 | */ | |
1779 | ||
1780 | dead_children = 1; | |
1781 | ||
1782 | /* | |
1783 | * Reset the signal handler as needed... | |
1784 | */ | |
1785 | ||
1786 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
1787 | signal(SIGCLD, sigchld_handler); | |
1788 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
1789 | } | |
1790 | ||
1791 | ||
1792 | /* | |
1793 | * 'sighup_handler()' - Handle 'hangup' signals to reconfigure the scheduler. | |
1794 | */ | |
1795 | ||
1796 | static void | |
1797 | sighup_handler(int sig) /* I - Signal number */ | |
1798 | { | |
1799 | (void)sig; | |
1800 | ||
1801 | NeedReload = RELOAD_ALL; | |
1802 | ReloadTime = time(NULL); | |
1803 | ||
1804 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
1805 | signal(SIGHUP, sighup_handler); | |
1806 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
1807 | } | |
1808 | ||
1809 | ||
1810 | /* | |
1811 | * 'sigterm_handler()' - Handle 'terminate' signals that stop the scheduler. | |
1812 | */ | |
1813 | ||
1814 | static void | |
1815 | sigterm_handler(int sig) /* I - Signal number */ | |
1816 | { | |
1817 | (void)sig; /* remove compiler warnings... */ | |
1818 | ||
1819 | /* | |
1820 | * Flag that we should stop and return... | |
1821 | */ | |
1822 | ||
1823 | stop_scheduler = 1; | |
1824 | } | |
1825 | ||
1826 | ||
1720786e MS |
1827 | #if defined(HAVE_LAUNCHD) || defined(HAVE_SYSTEMD) |
1828 | /* | |
1829 | * 'service_checkin()' - Check-in with launchd and collect the listening fds. | |
1830 | */ | |
1831 | ||
1832 | static void | |
1833 | service_checkin(void) | |
1834 | { | |
1835 | # ifdef HAVE_LAUNCH_ACTIVATE_SOCKET | |
1836 | int error; /* Check-in error, if any */ | |
1837 | size_t i, /* Looping var */ | |
1838 | count; /* Number of listeners */ | |
1839 | int *ld_sockets; /* Listener sockets */ | |
1840 | cupsd_listener_t *lis; /* Listeners array */ | |
1841 | http_addr_t addr; /* Address variable */ | |
1842 | socklen_t addrlen; /* Length of address */ | |
1843 | char s[256]; /* String addresss */ | |
1844 | ||
1845 | ||
1846 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: pid=%d", (int)getpid()); | |
1847 | ||
1848 | /* | |
1849 | * Check-in with launchd... | |
1850 | */ | |
1851 | ||
1852 | if ((error = launch_activate_socket("Listeners", &ld_sockets, &count)) != 0) | |
1853 | { | |
1854 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to get listener sockets: %s", strerror(error)); | |
1855 | exit(EXIT_FAILURE); | |
1856 | return; /* anti-compiler-warning */ | |
1857 | } | |
1858 | ||
1859 | /* | |
1860 | * Try to match the launchd sockets to the cupsd listeners... | |
1861 | */ | |
1862 | ||
1863 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: %d listeners.", (int)count); | |
1864 | ||
1865 | for (i = 0; i < count; i ++) | |
1866 | { | |
1867 | /* | |
1868 | * Get the launchd socket address... | |
1869 | */ | |
1870 | ||
1871 | addrlen = sizeof(addr); | |
1872 | ||
1873 | if (getsockname(ld_sockets[i], (struct sockaddr *)&addr, &addrlen)) | |
1874 | { | |
1875 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to get local address for listener #%d: %s", (int)i + 1, strerror(errno)); | |
1876 | continue; | |
1877 | } | |
1878 | ||
1879 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: Listener #%d at fd %d, \"%s\".", (int)i + 1, ld_sockets[i], httpAddrString(&addr, s, sizeof(s))); | |
1880 | ||
1881 | for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); | |
1882 | lis; | |
1883 | lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
1884 | if (httpAddrEqual(&lis->address, &addr)) | |
1885 | break; | |
1886 | ||
1887 | /* | |
1888 | * Add a new listener if there's no match... | |
1889 | */ | |
1890 | ||
1891 | if (lis) | |
1892 | { | |
1893 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: Matched existing listener #%d to %s.", (int)i + 1, httpAddrString(&(lis->address), s, sizeof(s))); | |
1894 | } | |
1895 | else | |
1896 | { | |
1897 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: Adding new listener #%d for %s.", (int)i + 1, httpAddrString(&addr, s, sizeof(s))); | |
1898 | ||
1899 | if ((lis = calloc(1, sizeof(cupsd_listener_t))) == NULL) | |
1900 | { | |
1901 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to allocate listener: %s", strerror(errno)); | |
1902 | exit(EXIT_FAILURE); | |
1903 | } | |
1904 | ||
1905 | cupsArrayAdd(Listeners, lis); | |
1906 | ||
1907 | memcpy(&lis->address, &addr, sizeof(lis->address)); | |
1908 | } | |
1909 | ||
1910 | lis->fd = ld_sockets[i]; | |
1911 | lis->on_demand = 1; | |
1912 | ||
1913 | # ifdef HAVE_SSL | |
1914 | if (httpAddrPort(&(lis->address)) == 443) | |
1915 | lis->encryption = HTTP_ENCRYPT_ALWAYS; | |
1916 | # endif /* HAVE_SSL */ | |
1917 | } | |
1918 | ||
117466cd MS |
1919 | free(ld_sockets); |
1920 | ||
1720786e MS |
1921 | # elif defined(HAVE_LAUNCHD) |
1922 | size_t i, /* Looping var */ | |
1923 | count; /* Number of listeners */ | |
1924 | launch_data_t ld_msg, /* Launch data message */ | |
1925 | ld_resp, /* Launch data response */ | |
1926 | ld_array, /* Launch data array */ | |
1927 | ld_sockets, /* Launch data sockets dictionary */ | |
1928 | tmp; /* Launch data */ | |
1929 | cupsd_listener_t *lis; /* Listeners array */ | |
1930 | http_addr_t addr; /* Address variable */ | |
1931 | socklen_t addrlen; /* Length of address */ | |
1932 | int fd; /* File descriptor */ | |
1933 | char s[256]; /* String addresss */ | |
1934 | ||
1935 | ||
1936 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: pid=%d", (int)getpid()); | |
1937 | ||
1938 | /* | |
1939 | * Check-in with launchd... | |
1940 | */ | |
1941 | ||
1942 | ld_msg = launch_data_new_string(LAUNCH_KEY_CHECKIN); | |
1943 | if ((ld_resp = launch_msg(ld_msg)) == NULL) | |
1944 | { | |
1945 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1946 | "service_checkin: launch_msg(\"" LAUNCH_KEY_CHECKIN | |
1947 | "\") IPC failure"); | |
1948 | exit(EXIT_FAILURE); | |
1949 | return; /* anti-compiler-warning */ | |
1950 | } | |
1951 | ||
1952 | if (launch_data_get_type(ld_resp) == LAUNCH_DATA_ERRNO) | |
1953 | { | |
1954 | errno = launch_data_get_errno(ld_resp); | |
1955 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Check-in failed: %s", | |
1956 | strerror(errno)); | |
1957 | exit(EXIT_FAILURE); | |
1958 | return; /* anti-compiler-warning */ | |
1959 | } | |
1960 | ||
1961 | /* | |
1962 | * Get the sockets dictionary... | |
1963 | */ | |
1964 | ||
1965 | if ((ld_sockets = launch_data_dict_lookup(ld_resp, LAUNCH_JOBKEY_SOCKETS)) | |
1966 | == NULL) | |
1967 | { | |
1968 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1969 | "service_checkin: No sockets found to answer requests on."); | |
1970 | exit(EXIT_FAILURE); | |
1971 | return; /* anti-compiler-warning */ | |
1972 | } | |
1973 | ||
1974 | /* | |
1975 | * Get the array of listener sockets... | |
1976 | */ | |
1977 | ||
1978 | if ((ld_array = launch_data_dict_lookup(ld_sockets, "Listeners")) == NULL) | |
1979 | { | |
1980 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1981 | "service_checkin: No sockets found to answer requests on."); | |
1982 | exit(EXIT_FAILURE); | |
1983 | return; /* anti-compiler-warning */ | |
1984 | } | |
1985 | ||
1986 | /* | |
1987 | * Add listening fd(s) to the Listener array... | |
1988 | */ | |
1989 | ||
1990 | if (launch_data_get_type(ld_array) == LAUNCH_DATA_ARRAY) | |
1991 | { | |
1992 | count = launch_data_array_get_count(ld_array); | |
1993 | ||
1994 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: %d listeners.", (int)count); | |
1995 | ||
1996 | for (i = 0; i < count; i ++) | |
1997 | { | |
1998 | /* | |
1999 | * Get the launchd file descriptor and address... | |
2000 | */ | |
2001 | ||
2002 | if ((tmp = launch_data_array_get_index(ld_array, i)) != NULL) | |
2003 | { | |
2004 | fd = launch_data_get_fd(tmp); | |
2005 | addrlen = sizeof(addr); | |
2006 | ||
2007 | if (getsockname(fd, (struct sockaddr *)&addr, &addrlen)) | |
2008 | { | |
2009 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to get local address for listener #%d: %s", (int)i + 1, strerror(errno)); | |
2010 | continue; | |
2011 | } | |
2012 | ||
2013 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: Listener #%d at fd %d, \"%s\".", (int)i + 1, fd, httpAddrString(&addr, s, sizeof(s))); | |
2014 | ||
2015 | /* | |
2016 | * Try to match the launchd socket address to one of the listeners... | |
2017 | */ | |
2018 | ||
2019 | for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); | |
2020 | lis; | |
2021 | lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
2022 | if (httpAddrEqual(&lis->address, &addr)) | |
2023 | break; | |
2024 | ||
2025 | /* | |
2026 | * Add a new listener If there's no match... | |
2027 | */ | |
2028 | ||
2029 | if (lis) | |
2030 | { | |
2031 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: Matched existing listener #%d to %s.", (int)i + 1, httpAddrString(&(lis->address), s, sizeof(s))); | |
2032 | } | |
2033 | else | |
2034 | { | |
2035 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: Adding new listener #%d for %s.", (int)i + 1, httpAddrString(&addr, s, sizeof(s))); | |
2036 | ||
2037 | if ((lis = calloc(1, sizeof(cupsd_listener_t))) == NULL) | |
2038 | { | |
2039 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to allocate listener: %s.", strerror(errno)); | |
2040 | exit(EXIT_FAILURE); | |
2041 | } | |
2042 | ||
2043 | cupsArrayAdd(Listeners, lis); | |
2044 | ||
2045 | memcpy(&lis->address, &addr, sizeof(lis->address)); | |
2046 | } | |
2047 | ||
2048 | lis->fd = fd; | |
2049 | lis->on_demand = 1; | |
2050 | ||
2051 | # ifdef HAVE_SSL | |
2052 | if (httpAddrPort(&(lis->address)) == 443) | |
2053 | lis->encryption = HTTP_ENCRYPT_ALWAYS; | |
2054 | # endif /* HAVE_SSL */ | |
2055 | } | |
2056 | } | |
2057 | } | |
2058 | ||
2059 | launch_data_free(ld_msg); | |
2060 | launch_data_free(ld_resp); | |
2061 | ||
2062 | # else /* HAVE_SYSTEMD */ | |
2063 | int i, /* Looping var */ | |
2064 | count; /* Number of listeners */ | |
2065 | cupsd_listener_t *lis; /* Listeners array */ | |
2066 | http_addr_t addr; /* Address variable */ | |
2067 | socklen_t addrlen; /* Length of address */ | |
2068 | char s[256]; /* String addresss */ | |
2069 | ||
2070 | ||
2071 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: pid=%d", (int)getpid()); | |
2072 | ||
2073 | /* | |
2074 | * Check-in with systemd... | |
2075 | */ | |
2076 | ||
2077 | if ((count = sd_listen_fds(0)) < 0) | |
2078 | { | |
5950e7bd | 2079 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to get listener sockets: %s", strerror(-count)); |
1720786e MS |
2080 | exit(EXIT_FAILURE); |
2081 | return; /* anti-compiler-warning */ | |
2082 | } | |
2083 | ||
2084 | /* | |
2085 | * Try to match the systemd sockets to the cupsd listeners... | |
2086 | */ | |
2087 | ||
2088 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: %d listeners.", count); | |
2089 | ||
2090 | for (i = 0; i < count; i ++) | |
2091 | { | |
2092 | /* | |
2093 | * Get the launchd socket address... | |
2094 | */ | |
2095 | ||
2096 | addrlen = sizeof(addr); | |
2097 | ||
2098 | if (getsockname(SD_LISTEN_FDS_START + i, (struct sockaddr *)&addr, &addrlen)) | |
2099 | { | |
2100 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to get local address for listener #%d: %s", (int)i + 1, strerror(errno)); | |
2101 | continue; | |
2102 | } | |
2103 | ||
2104 | 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))); | |
2105 | ||
2106 | for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); | |
2107 | lis; | |
2108 | lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
2109 | if (httpAddrEqual(&lis->address, &addr)) | |
2110 | break; | |
2111 | ||
2112 | /* | |
2113 | * Add a new listener if there's no match... | |
2114 | */ | |
2115 | ||
2116 | if (lis) | |
2117 | { | |
2118 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: Matched existing listener #%d to %s.", (int)i + 1, httpAddrString(&(lis->address), s, sizeof(s))); | |
2119 | } | |
2120 | else | |
2121 | { | |
2122 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: Adding new listener #%d for %s.", (int)i + 1, httpAddrString(&addr, s, sizeof(s))); | |
2123 | ||
2124 | if ((lis = calloc(1, sizeof(cupsd_listener_t))) == NULL) | |
2125 | { | |
2126 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to allocate listener: %s", strerror(errno)); | |
2127 | exit(EXIT_FAILURE); | |
2128 | } | |
2129 | ||
2130 | cupsArrayAdd(Listeners, lis); | |
2131 | ||
2132 | memcpy(&lis->address, &addr, sizeof(lis->address)); | |
2133 | } | |
2134 | ||
2135 | lis->fd = SD_LISTEN_FDS_START + i; | |
2136 | lis->on_demand = 1; | |
2137 | ||
2138 | # ifdef HAVE_SSL | |
2139 | if (httpAddrPort(&(lis->address)) == 443) | |
2140 | lis->encryption = HTTP_ENCRYPT_ALWAYS; | |
2141 | # endif /* HAVE_SSL */ | |
2142 | } | |
2143 | # endif /* HAVE_LAUNCH_ACTIVATE_SOCKET */ | |
2144 | } | |
2145 | ||
2146 | ||
2147 | /* | |
2148 | * 'service_checkout()' - Update the CUPS_KEEPALIVE file as needed. | |
2149 | */ | |
2150 | ||
2151 | static void | |
2152 | service_checkout(void) | |
2153 | { | |
2154 | int fd; /* File descriptor */ | |
2155 | ||
2156 | ||
2157 | /* | |
8e732f4a | 2158 | * Create or remove the "keep-alive" file based on whether there are active |
1720786e MS |
2159 | * jobs or shared printers to advertise... |
2160 | */ | |
2161 | ||
0627e869 | 2162 | if (cupsArrayCount(ActiveJobs) || /* Active jobs */ |
0627e869 | 2163 | WebInterface || /* Web interface enabled */ |
1720786e | 2164 | (Browsing && BrowseLocalProtocols && cupsArrayCount(Printers))) |
0627e869 | 2165 | /* Printers being shared */ |
1720786e MS |
2166 | { |
2167 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Creating keep-alive file \"" CUPS_KEEPALIVE "\"."); | |
2168 | ||
2169 | if ((fd = open(CUPS_KEEPALIVE, O_RDONLY | O_CREAT | O_EXCL, S_IRUSR)) >= 0) | |
2170 | close(fd); | |
2171 | } | |
2172 | else | |
2173 | { | |
2174 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Removing keep-alive file \"" CUPS_KEEPALIVE "\"."); | |
2175 | ||
2176 | unlink(CUPS_KEEPALIVE); | |
2177 | } | |
2178 | } | |
2179 | #endif /* HAVE_LAUNCHD || HAVE_SYSTEMD */ | |
2180 | ||
2181 | ||
ef416fc2 | 2182 | /* |
2183 | * 'usage()' - Show scheduler usage. | |
2184 | */ | |
2185 | ||
2186 | static void | |
a4d04587 | 2187 | usage(int status) /* O - Exit status */ |
ef416fc2 | 2188 | { |
0837b7e8 MS |
2189 | FILE *fp = status ? stderr : stdout; /* Output file */ |
2190 | ||
2191 | ||
2192 | _cupsLangPuts(fp, _("Usage: cupsd [options]")); | |
2193 | _cupsLangPuts(fp, _("Options:")); | |
f3c17241 | 2194 | _cupsLangPuts(fp, _(" -c cupsd.conf Set cupsd.conf file to use.")); |
84315f46 | 2195 | _cupsLangPuts(fp, _(" -f Run in the foreground.")); |
3b433010 | 2196 | _cupsLangPuts(fp, _(" -F Run in the foreground but detach from console.")); |
84315f46 | 2197 | _cupsLangPuts(fp, _(" -h Show this usage message.")); |
1720786e | 2198 | _cupsLangPuts(fp, _(" -l Run cupsd on demand.")); |
3b433010 MS |
2199 | _cupsLangPuts(fp, _(" -s cups-files.conf Set cups-files.conf file to use.")); |
2200 | _cupsLangPuts(fp, _(" -t Test the configuration file.")); | |
0837b7e8 | 2201 | |
a4d04587 | 2202 | exit(status); |
ef416fc2 | 2203 | } |
2204 | ||
2205 | ||
2206 | /* | |
f2d18633 | 2207 | * End of "$Id$". |
ef416fc2 | 2208 | */ |