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Commit | Line | Data |
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ef416fc2 | 1 | /* |
581dae2d | 2 | * Main loop for the CUPS scheduler. |
ef416fc2 | 3 | * |
bbe495b0 | 4 | * Copyright 2007-2018 by Apple Inc. |
581dae2d | 5 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 6 | * |
eb2cb9b0 MS |
7 | * Licensed under Apache License v2.0. See the file "LICENSE" for more |
8 | * information. | |
ef416fc2 | 9 | */ |
10 | ||
11 | /* | |
12 | * Include necessary headers... | |
13 | */ | |
14 | ||
15 | #define _MAIN_C_ | |
16 | #include "cupsd.h" | |
17 | #include <sys/resource.h> | |
bbe495b0 MS |
18 | #ifdef __APPLE__ |
19 | # include <xpc/xpc.h> | |
2c3b8f53 | 20 | # include <pthread/qos.h> |
bbe495b0 | 21 | #endif /* __APPLE__ */ |
a1797929 MS |
22 | #ifdef HAVE_ASL_H |
23 | # include <asl.h> | |
24 | #elif defined(HAVE_SYSTEMD_SD_JOURNAL_H) | |
25 | # define SD_JOURNAL_SUPPRESS_LOCATION | |
26 | # include <systemd/sd-journal.h> | |
27 | #endif /* HAVE_ASL_H */ | |
ef416fc2 | 28 | #include <syslog.h> |
29 | #include <grp.h> | |
30 | ||
a4d04587 | 31 | #ifdef HAVE_LAUNCH_H |
32 | # include <launch.h> | |
a4d04587 | 33 | #endif /* HAVE_LAUNCH_H */ |
34 | ||
1720786e | 35 | #ifdef HAVE_SYSTEMD |
5950e7bd | 36 | # include <systemd/sd-daemon.h> |
1720786e MS |
37 | #endif /* HAVE_SYSTEMD */ |
38 | ||
441de8b2 BN |
39 | #ifdef HAVE_ONDEMAND |
40 | # define CUPS_KEEPALIVE CUPS_CACHEDIR "/org.cups.cupsd" | |
41 | /* Name of the KeepAlive file */ | |
03bc3ef4 | 42 | #endif /* HAVE_ONDEMAND */ |
441de8b2 | 43 | |
ef416fc2 | 44 | #if defined(HAVE_MALLOC_H) && defined(HAVE_MALLINFO) |
45 | # include <malloc.h> | |
46 | #endif /* HAVE_MALLOC_H && HAVE_MALLINFO */ | |
3dd9c340 | 47 | |
fa73b229 | 48 | #ifdef HAVE_NOTIFY_H |
49 | # include <notify.h> | |
50 | #endif /* HAVE_NOTIFY_H */ | |
ef416fc2 | 51 | |
e7f455a5 MS |
52 | #ifdef HAVE_DBUS |
53 | # include <dbus/dbus.h> | |
54 | #endif /* HAVE_DBUS */ | |
55 | ||
3dd9c340 MS |
56 | #ifdef HAVE_SYS_PARAM_H |
57 | # include <sys/param.h> | |
58 | #endif /* HAVE_SYS_PARAM_H */ | |
59 | ||
ef416fc2 | 60 | |
61 | /* | |
62 | * Local functions... | |
63 | */ | |
64 | ||
411affcf | 65 | static void parent_handler(int sig); |
66 | static void process_children(void); | |
67 | static void sigchld_handler(int sig); | |
68 | static void sighup_handler(int sig); | |
69 | static void sigterm_handler(int sig); | |
70 | static long select_timeout(int fds); | |
1720786e | 71 | static void service_checkin(void); |
03bc3ef4 | 72 | static void service_checkout(int shutdown); |
a32af27c | 73 | static void usage(int status) _CUPS_NORETURN; |
ef416fc2 | 74 | |
75 | ||
76 | /* | |
77 | * Local globals... | |
78 | */ | |
79 | ||
411affcf | 80 | static int parent_signal = 0; |
81 | /* Set to signal number from child */ | |
82 | static int holdcount = 0; /* Number of times "hold" was called */ | |
ef416fc2 | 83 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
411affcf | 84 | static sigset_t holdmask; /* Old POSIX signal mask */ |
ef416fc2 | 85 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ |
411affcf | 86 | static int dead_children = 0; |
87 | /* Dead children? */ | |
88 | static int stop_scheduler = 0; | |
89 | /* Should the scheduler stop? */ | |
e1bb4a6e MS |
90 | static time_t local_timeout = 0; |
91 | /* Next local printer timeout */ | |
411affcf | 92 | |
ef416fc2 | 93 | |
94 | /* | |
95 | * 'main()' - Main entry for the CUPS scheduler. | |
96 | */ | |
97 | ||
98 | int /* O - Exit status */ | |
bd7854cb | 99 | main(int argc, /* I - Number of command-line args */ |
ef416fc2 | 100 | char *argv[]) /* I - Command-line arguments */ |
101 | { | |
102 | int i; /* Looping var */ | |
103 | char *opt; /* Option character */ | |
108f7505 MS |
104 | int close_all = 1, /* Close all file descriptors? */ |
105 | disconnect = 1, /* Disconnect from controlling terminal? */ | |
106 | fg = 0, /* Run in foreground? */ | |
2dd94018 | 107 | run_as_child = 0, |
108f7505 | 108 | /* Running as child process? */ |
2dd94018 MS |
109 | print_profile = 0; |
110 | /* Print the sandbox profile to stdout? */ | |
bd7854cb | 111 | int fds; /* Number of ready descriptors */ |
ef416fc2 | 112 | cupsd_client_t *con; /* Current client */ |
113 | cupsd_job_t *job; /* Current job */ | |
114 | cupsd_listener_t *lis; /* Current listener */ | |
115 | time_t current_time, /* Current time */ | |
a4d04587 | 116 | activity, /* Client activity timer */ |
ef416fc2 | 117 | senddoc_time, /* Send-Document time */ |
411affcf | 118 | expire_time, /* Subscription expire time */ |
50fe7201 | 119 | report_time, /* Malloc/client/job report time */ |
5a662dc0 | 120 | event_time; /* Last event notification time */ |
f7deaa1a | 121 | long timeout; /* Timeout for cupsdDoSelect() */ |
ef416fc2 | 122 | struct rlimit limit; /* Runtime limit */ |
123 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
124 | struct sigaction action; /* Actions for POSIX signals */ | |
125 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
a41f09e2 | 126 | #ifdef __APPLE__ |
1deb86fd | 127 | int use_sysman = 1; /* Use system management functions? */ |
a4924f6c MS |
128 | #else |
129 | time_t netif_time = 0; /* Time since last network update */ | |
a41f09e2 | 130 | #endif /* __APPLE__ */ |
c187d9ab | 131 | #if defined(HAVE_ONDEMAND) |
1720786e | 132 | int service_idle_exit; |
a4d04587 | 133 | /* Idle exit on select timeout? */ |
c187d9ab | 134 | #endif /* HAVE_ONDEMAND */ |
ef416fc2 | 135 | |
136 | ||
db1f069b MS |
137 | #ifdef HAVE_GETEUID |
138 | /* | |
139 | * Check for setuid invocation, which we do not support! | |
140 | */ | |
141 | ||
142 | if (getuid() != geteuid()) | |
143 | { | |
1deb86fd | 144 | fputs("cupsd: Cannot run as a setuid program.\n", stderr); |
db1f069b MS |
145 | return (1); |
146 | } | |
147 | #endif /* HAVE_GETEUID */ | |
148 | ||
ef416fc2 | 149 | /* |
150 | * Check for command-line arguments... | |
151 | */ | |
152 | ||
4400e98d | 153 | fg = 0; |
ef416fc2 | 154 | |
155 | for (i = 1; i < argc; i ++) | |
156 | if (argv[i][0] == '-') | |
157 | for (opt = argv[i] + 1; *opt != '\0'; opt ++) | |
158 | switch (*opt) | |
159 | { | |
a41f09e2 MS |
160 | case 'C' : /* Run as child with config file */ |
161 | run_as_child = 1; | |
108f7505 MS |
162 | fg = 1; |
163 | close_all = 0; | |
a41f09e2 | 164 | |
ef416fc2 | 165 | case 'c' : /* Configuration file */ |
166 | i ++; | |
167 | if (i >= argc) | |
a4d04587 | 168 | { |
169 | _cupsLangPuts(stderr, _("cupsd: Expected config filename " | |
0837b7e8 | 170 | "after \"-c\" option.")); |
a4d04587 | 171 | usage(1); |
172 | } | |
ef416fc2 | 173 | |
174 | if (argv[i][0] == '/') | |
175 | { | |
176 | /* | |
177 | * Absolute directory... | |
178 | */ | |
179 | ||
180 | cupsdSetString(&ConfigurationFile, argv[i]); | |
181 | } | |
182 | else | |
183 | { | |
184 | /* | |
185 | * Relative directory... | |
186 | */ | |
187 | ||
09ec0018 | 188 | char *current; /* Current directory */ |
ef416fc2 | 189 | |
09ec0018 | 190 | /* |
191 | * Allocate a buffer for the current working directory to | |
192 | * reduce run-time stack usage; this approximates the | |
193 | * behavior of some implementations of getcwd() when they | |
194 | * are passed a NULL pointer. | |
195 | */ | |
196 | ||
91c84a35 MS |
197 | if ((current = malloc(1024)) == NULL) |
198 | { | |
199 | _cupsLangPuts(stderr, | |
0837b7e8 | 200 | _("cupsd: Unable to get current directory.")); |
91c84a35 MS |
201 | return (1); |
202 | } | |
203 | ||
204 | if (!getcwd(current, 1024)) | |
205 | { | |
206 | _cupsLangPuts(stderr, | |
0837b7e8 | 207 | _("cupsd: Unable to get current directory.")); |
91c84a35 MS |
208 | free(current); |
209 | return (1); | |
210 | } | |
09ec0018 | 211 | |
ef416fc2 | 212 | cupsdSetStringf(&ConfigurationFile, "%s/%s", current, argv[i]); |
09ec0018 | 213 | free(current); |
ef416fc2 | 214 | } |
215 | break; | |
216 | ||
217 | case 'f' : /* Run in foreground... */ | |
108f7505 MS |
218 | fg = 1; |
219 | disconnect = 0; | |
220 | close_all = 0; | |
ef416fc2 | 221 | break; |
222 | ||
bd7854cb | 223 | case 'F' : /* Run in foreground, but disconnect from terminal... */ |
108f7505 MS |
224 | fg = 1; |
225 | close_all = 0; | |
ef416fc2 | 226 | break; |
227 | ||
a4d04587 | 228 | case 'h' : /* Show usage/help */ |
229 | usage(0); | |
230 | break; | |
231 | ||
441de8b2 | 232 | case 'l' : /* Started by launchd/systemd/upstart... */ |
03bc3ef4 | 233 | #ifdef HAVE_ONDEMAND |
108f7505 MS |
234 | OnDemand = 1; |
235 | fg = 1; | |
236 | close_all = 0; | |
237 | disconnect = 0; | |
a4d04587 | 238 | #else |
1720786e | 239 | _cupsLangPuts(stderr, _("cupsd: On-demand support not compiled " |
0837b7e8 | 240 | "in, running in normal mode.")); |
108f7505 MS |
241 | fg = 0; |
242 | disconnect = 1; | |
243 | close_all = 1; | |
c187d9ab | 244 | #endif /* HAVE_ONDEMAND */ |
a4d04587 | 245 | break; |
246 | ||
a74454a7 | 247 | case 'p' : /* Stop immediately for profiling */ |
5a662dc0 MS |
248 | fputs("cupsd: -p (startup profiling) is for internal testing " |
249 | "use only!\n", stderr); | |
a74454a7 | 250 | stop_scheduler = 1; |
251 | fg = 1; | |
108f7505 MS |
252 | disconnect = 0; |
253 | close_all = 0; | |
a74454a7 | 254 | break; |
255 | ||
1340db2d | 256 | case 'P' : /* Disable security profiles */ |
8fe0183a MS |
257 | fputs("cupsd: -P (disable sandboxing) is for internal testing use only.\n", stderr); |
258 | UseSandboxing = 0; | |
1340db2d MS |
259 | break; |
260 | ||
c41769ff MS |
261 | case 's' : /* Set cups-files.conf location */ |
262 | i ++; | |
263 | if (i >= argc) | |
264 | { | |
265 | _cupsLangPuts(stderr, _("cupsd: Expected cups-files.conf " | |
266 | "filename after \"-s\" option.")); | |
267 | usage(1); | |
268 | } | |
269 | ||
270 | if (argv[i][0] != '/') | |
271 | { | |
272 | /* | |
273 | * Relative filename not allowed... | |
274 | */ | |
275 | ||
276 | _cupsLangPuts(stderr, _("cupsd: Relative cups-files.conf " | |
277 | "filename not allowed.")); | |
278 | usage(1); | |
279 | } | |
280 | ||
281 | cupsdSetString(&CupsFilesFile, argv[i]); | |
282 | break; | |
283 | ||
68b10830 MS |
284 | #ifdef __APPLE__ |
285 | case 'S' : /* Disable system management functions */ | |
5a662dc0 MS |
286 | fputs("cupsd: -S (disable system management) for internal " |
287 | "testing use only!\n", stderr); | |
68b10830 MS |
288 | use_sysman = 0; |
289 | break; | |
290 | #endif /* __APPLE__ */ | |
291 | ||
2e4ff8af MS |
292 | case 't' : /* Test the cupsd.conf file... */ |
293 | TestConfigFile = 1; | |
294 | fg = 1; | |
108f7505 MS |
295 | disconnect = 0; |
296 | close_all = 0; | |
2e4ff8af MS |
297 | break; |
298 | ||
2dd94018 MS |
299 | case 'T' : /* Print security profile */ |
300 | print_profile = 1; | |
301 | fg = 1; | |
302 | disconnect = 0; | |
303 | close_all = 0; | |
304 | break; | |
305 | ||
ef416fc2 | 306 | default : /* Unknown option */ |
a4d04587 | 307 | _cupsLangPrintf(stderr, _("cupsd: Unknown option \"%c\" - " |
0837b7e8 | 308 | "aborting."), *opt); |
a4d04587 | 309 | usage(1); |
ef416fc2 | 310 | break; |
311 | } | |
312 | else | |
313 | { | |
0837b7e8 | 314 | _cupsLangPrintf(stderr, _("cupsd: Unknown argument \"%s\" - aborting."), |
a4d04587 | 315 | argv[i]); |
316 | usage(1); | |
ef416fc2 | 317 | } |
318 | ||
319 | if (!ConfigurationFile) | |
320 | cupsdSetString(&ConfigurationFile, CUPS_SERVERROOT "/cupsd.conf"); | |
321 | ||
cb7f98ee MS |
322 | if (!CupsFilesFile) |
323 | { | |
324 | char *filename, /* Copy of cupsd.conf filename */ | |
325 | *slash; /* Final slash in cupsd.conf filename */ | |
326 | size_t len; /* Size of buffer */ | |
327 | ||
328 | len = strlen(ConfigurationFile) + 15; | |
329 | if ((filename = malloc(len)) == NULL) | |
330 | { | |
331 | _cupsLangPrintf(stderr, | |
332 | _("cupsd: Unable to get path to " | |
333 | "cups-files.conf file.")); | |
334 | return (1); | |
335 | } | |
336 | ||
337 | strlcpy(filename, ConfigurationFile, len); | |
338 | if ((slash = strrchr(filename, '/')) == NULL) | |
339 | { | |
340 | _cupsLangPrintf(stderr, | |
341 | _("cupsd: Unable to get path to " | |
342 | "cups-files.conf file.")); | |
343 | return (1); | |
344 | } | |
345 | ||
7e86f2f6 | 346 | strlcpy(slash, "/cups-files.conf", len - (size_t)(slash - filename)); |
cb7f98ee MS |
347 | cupsdSetString(&CupsFilesFile, filename); |
348 | free(filename); | |
349 | } | |
350 | ||
108f7505 MS |
351 | if (disconnect) |
352 | { | |
353 | /* | |
354 | * Make sure we aren't tying up any filesystems... | |
355 | */ | |
356 | ||
357 | chdir("/"); | |
358 | ||
359 | /* | |
360 | * Disconnect from the controlling terminal... | |
361 | */ | |
362 | ||
363 | setsid(); | |
364 | } | |
365 | ||
366 | if (close_all) | |
367 | { | |
368 | /* | |
369 | * Close all open files... | |
370 | */ | |
371 | ||
372 | getrlimit(RLIMIT_NOFILE, &limit); | |
373 | ||
374 | for (i = 0; i < (int)limit.rlim_cur && i < 1024; i ++) | |
375 | close(i); | |
376 | ||
377 | /* | |
378 | * Redirect stdin/out/err to /dev/null... | |
379 | */ | |
380 | ||
381 | if ((i = open("/dev/null", O_RDONLY)) != 0) | |
382 | { | |
383 | dup2(i, 0); | |
384 | close(i); | |
385 | } | |
386 | ||
387 | if ((i = open("/dev/null", O_WRONLY)) != 1) | |
388 | { | |
389 | dup2(i, 1); | |
390 | close(i); | |
391 | } | |
392 | ||
393 | if ((i = open("/dev/null", O_WRONLY)) != 2) | |
394 | { | |
395 | dup2(i, 2); | |
396 | close(i); | |
397 | } | |
398 | } | |
a1797929 MS |
399 | else |
400 | LogStderr = cupsFileStderr(); | |
108f7505 | 401 | |
ef416fc2 | 402 | /* |
108f7505 | 403 | * Run in the background as needed... |
ef416fc2 | 404 | */ |
405 | ||
406 | if (!fg) | |
407 | { | |
408 | /* | |
409 | * Setup signal handlers for the parent... | |
410 | */ | |
411 | ||
412 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
413 | sigset(SIGUSR1, parent_handler); | |
414 | sigset(SIGCHLD, parent_handler); | |
415 | ||
416 | sigset(SIGHUP, SIG_IGN); | |
417 | #elif defined(HAVE_SIGACTION) | |
418 | memset(&action, 0, sizeof(action)); | |
419 | sigemptyset(&action.sa_mask); | |
420 | sigaddset(&action.sa_mask, SIGUSR1); | |
421 | action.sa_handler = parent_handler; | |
422 | sigaction(SIGUSR1, &action, NULL); | |
423 | sigaction(SIGCHLD, &action, NULL); | |
424 | ||
425 | sigemptyset(&action.sa_mask); | |
426 | action.sa_handler = SIG_IGN; | |
427 | sigaction(SIGHUP, &action, NULL); | |
428 | #else | |
429 | signal(SIGUSR1, parent_handler); | |
430 | signal(SIGCLD, parent_handler); | |
431 | ||
432 | signal(SIGHUP, SIG_IGN); | |
433 | #endif /* HAVE_SIGSET */ | |
434 | ||
435 | if (fork() > 0) | |
436 | { | |
437 | /* | |
438 | * OK, wait for the child to startup and send us SIGUSR1 or to crash | |
439 | * and the OS send us SIGCHLD... We also need to ignore SIGHUP which | |
440 | * might be sent by the init script to restart the scheduler... | |
441 | */ | |
442 | ||
443 | for (; parent_signal == 0;) | |
444 | sleep(1); | |
445 | ||
446 | if (parent_signal == SIGUSR1) | |
447 | return (0); | |
448 | ||
449 | if (wait(&i) < 0) | |
450 | { | |
451 | perror("cupsd"); | |
452 | return (1); | |
453 | } | |
454 | else if (WIFEXITED(i)) | |
455 | { | |
4d301e69 | 456 | fprintf(stderr, "cupsd: Child exited with status %d\n", |
bd7854cb | 457 | WEXITSTATUS(i)); |
ef416fc2 | 458 | return (2); |
459 | } | |
460 | else | |
461 | { | |
4d301e69 | 462 | fprintf(stderr, "cupsd: Child exited on signal %d\n", WTERMSIG(i)); |
ef416fc2 | 463 | return (3); |
464 | } | |
465 | } | |
a41f09e2 | 466 | |
3dd9c340 | 467 | #if defined(__OpenBSD__) && OpenBSD < 201211 |
68b10830 MS |
468 | /* |
469 | * Call _thread_sys_closefrom() so the child process doesn't reset the | |
470 | * parent's file descriptors to be blocking. This is a workaround for a | |
3dd9c340 | 471 | * limitation of userland libpthread on older versions of OpenBSD. |
68b10830 | 472 | */ |
ef55b745 | 473 | |
68b10830 | 474 | _thread_sys_closefrom(0); |
3dd9c340 | 475 | #endif /* __OpenBSD__ && OpenBSD < 201211 */ |
68b10830 | 476 | |
a41f09e2 | 477 | /* |
108f7505 MS |
478 | * Since many system libraries create fork-unsafe data on execution of a |
479 | * program, we need to re-execute the background cupsd with the "-C" and "-s" | |
480 | * options to avoid problems. Unfortunately, we also have to assume that | |
481 | * argv[0] contains the name of the cupsd executable - there is no portable | |
482 | * way to get the real pathname... | |
a41f09e2 MS |
483 | */ |
484 | ||
108f7505 | 485 | execlp(argv[0], argv[0], "-C", ConfigurationFile, "-s", CupsFilesFile, (char *)0); |
a41f09e2 | 486 | exit(errno); |
ef416fc2 | 487 | } |
488 | ||
e4e37194 MS |
489 | /* |
490 | * Let the system know we are busy while we bring up cupsd... | |
491 | */ | |
492 | ||
493 | cupsdSetBusyState(1); | |
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 | } | |
2dd94018 MS |
549 | else if (print_profile) |
550 | { | |
551 | cups_file_t *fp; /* File pointer */ | |
552 | const char *profile = cupsdCreateProfile(42, 0); | |
553 | /* Profile */ | |
554 | char line[1024]; /* Line from file */ | |
555 | ||
556 | ||
557 | if ((fp = cupsFileOpen(profile, "r")) == NULL) | |
558 | { | |
559 | printf("Unable to open profile file \"%s\": %s\n", profile ? profile : "(null)", strerror(errno)); | |
560 | return (1); | |
561 | } | |
562 | ||
563 | while (cupsFileGets(fp, line, sizeof(line))) | |
564 | puts(line); | |
565 | ||
566 | cupsFileClose(fp); | |
567 | ||
568 | return (0); | |
569 | } | |
ef416fc2 | 570 | |
ba55dc12 MS |
571 | /* |
572 | * Clean out old temp files and printer cache data. | |
573 | */ | |
cc0d019f | 574 | |
ba55dc12 | 575 | if (!strncmp(TempDir, RequestRoot, strlen(RequestRoot))) |
321d8d57 | 576 | cupsdCleanFiles(TempDir, NULL); |
cc0d019f | 577 | |
321d8d57 | 578 | cupsdCleanFiles(CacheDir, "*.ipp"); |
cc0d019f | 579 | |
03bc3ef4 MS |
580 | /* |
581 | * If we were started on demand by launchd or systemd get the listen sockets | |
582 | * file descriptors... | |
583 | */ | |
a4d04587 | 584 | |
03bc3ef4 MS |
585 | service_checkin(); |
586 | service_checkout(0); | |
a4d04587 | 587 | |
588 | /* | |
589 | * Startup the server... | |
590 | */ | |
591 | ||
6d2f911b MS |
592 | httpInitialize(); |
593 | ||
a4d04587 | 594 | cupsdStartServer(); |
595 | ||
ef416fc2 | 596 | /* |
597 | * Catch hangup and child signals and ignore broken pipes... | |
598 | */ | |
599 | ||
600 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
e1d6a774 | 601 | sigset(SIGCHLD, sigchld_handler); |
4744bd90 | 602 | sigset(SIGHUP, sighup_handler); |
ef416fc2 | 603 | sigset(SIGPIPE, SIG_IGN); |
604 | sigset(SIGTERM, sigterm_handler); | |
605 | #elif defined(HAVE_SIGACTION) | |
606 | memset(&action, 0, sizeof(action)); | |
607 | ||
e1d6a774 | 608 | sigemptyset(&action.sa_mask); |
609 | sigaddset(&action.sa_mask, SIGTERM); | |
610 | sigaddset(&action.sa_mask, SIGCHLD); | |
611 | action.sa_handler = sigchld_handler; | |
612 | sigaction(SIGCHLD, &action, NULL); | |
613 | ||
ef416fc2 | 614 | sigemptyset(&action.sa_mask); |
615 | sigaddset(&action.sa_mask, SIGHUP); | |
4744bd90 | 616 | action.sa_handler = sighup_handler; |
ef416fc2 | 617 | sigaction(SIGHUP, &action, NULL); |
618 | ||
619 | sigemptyset(&action.sa_mask); | |
620 | action.sa_handler = SIG_IGN; | |
621 | sigaction(SIGPIPE, &action, NULL); | |
622 | ||
623 | sigemptyset(&action.sa_mask); | |
624 | sigaddset(&action.sa_mask, SIGTERM); | |
625 | sigaddset(&action.sa_mask, SIGCHLD); | |
626 | action.sa_handler = sigterm_handler; | |
627 | sigaction(SIGTERM, &action, NULL); | |
628 | #else | |
e1d6a774 | 629 | signal(SIGCLD, sigchld_handler); /* No, SIGCLD isn't a typo... */ |
4744bd90 | 630 | signal(SIGHUP, sighup_handler); |
ef416fc2 | 631 | signal(SIGPIPE, SIG_IGN); |
632 | signal(SIGTERM, sigterm_handler); | |
633 | #endif /* HAVE_SIGSET */ | |
634 | ||
ef416fc2 | 635 | /* |
636 | * Initialize authentication certificates... | |
637 | */ | |
638 | ||
639 | cupsdInitCerts(); | |
640 | ||
641 | /* | |
642 | * If we are running in the background, signal the parent process that | |
643 | * we are up and running... | |
644 | */ | |
645 | ||
a41f09e2 | 646 | if (!fg || run_as_child) |
ef416fc2 | 647 | { |
648 | /* | |
649 | * Send a signal to the parent process, but only if the parent is | |
650 | * not PID 1 (init). This avoids accidentally shutting down the | |
651 | * system on OpenBSD if you CTRL-C the server before it is up... | |
652 | */ | |
653 | ||
654 | i = getppid(); /* Save parent PID to avoid race condition */ | |
655 | ||
656 | if (i != 1) | |
657 | kill(i, SIGUSR1); | |
658 | } | |
659 | ||
e1d6a774 | 660 | #ifdef __APPLE__ |
09ec0018 | 661 | /* |
662 | * Start power management framework... | |
663 | */ | |
664 | ||
1340db2d MS |
665 | if (use_sysman) |
666 | cupsdStartSystemMonitor(); | |
e1d6a774 | 667 | #endif /* __APPLE__ */ |
ef416fc2 | 668 | |
49d87452 MS |
669 | /* |
670 | * Send server-started event... | |
671 | */ | |
672 | ||
03bc3ef4 | 673 | #ifdef HAVE_ONDEMAND |
1720786e MS |
674 | if (OnDemand) |
675 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, "Scheduler started on demand."); | |
49d87452 | 676 | else |
c187d9ab | 677 | #endif /* HAVE_ONDEMAND */ |
49d87452 | 678 | if (fg) |
1720786e | 679 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, "Scheduler started in foreground."); |
49d87452 | 680 | else |
1720786e | 681 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, "Scheduler started in background."); |
49d87452 | 682 | |
e4e37194 MS |
683 | cupsdSetBusyState(0); |
684 | ||
ef416fc2 | 685 | /* |
686 | * Start any pending print jobs... | |
687 | */ | |
688 | ||
689 | cupsdCheckJobs(); | |
690 | ||
691 | /* | |
692 | * Loop forever... | |
693 | */ | |
694 | ||
50fe7201 | 695 | current_time = time(NULL); |
50fe7201 MS |
696 | event_time = current_time; |
697 | expire_time = current_time; | |
123cfe02 | 698 | local_timeout = 0; |
ef416fc2 | 699 | fds = 1; |
5bd77a73 | 700 | report_time = 0; |
50fe7201 | 701 | senddoc_time = current_time; |
ef416fc2 | 702 | |
703 | while (!stop_scheduler) | |
704 | { | |
ef416fc2 | 705 | /* |
706 | * Check if there are dead children to handle... | |
707 | */ | |
708 | ||
709 | if (dead_children) | |
710 | process_children(); | |
711 | ||
712 | /* | |
713 | * Check if we need to load the server configuration file... | |
714 | */ | |
715 | ||
716 | if (NeedReload) | |
717 | { | |
718 | /* | |
719 | * Close any idle clients... | |
720 | */ | |
721 | ||
bd7854cb | 722 | if (cupsArrayCount(Clients) > 0) |
ef416fc2 | 723 | { |
bd7854cb | 724 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
725 | con; | |
726 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
996acce8 | 727 | if (httpGetState(con->http) == HTTP_WAITING) |
ef416fc2 | 728 | cupsdCloseClient(con); |
ef416fc2 | 729 | else |
996acce8 | 730 | con->http->keep_alive = HTTP_KEEPALIVE_OFF; |
ef416fc2 | 731 | |
732 | cupsdPauseListening(); | |
733 | } | |
734 | ||
ef416fc2 | 735 | /* |
736 | * Restart if all clients are closed and all jobs finished, or | |
737 | * if the reload timeout has elapsed... | |
738 | */ | |
739 | ||
bd7854cb | 740 | if ((cupsArrayCount(Clients) == 0 && |
238c3832 | 741 | (cupsArrayCount(PrintingJobs) == 0 || NeedReload != RELOAD_ALL)) || |
ef416fc2 | 742 | (time(NULL) - ReloadTime) >= ReloadTimeout) |
743 | { | |
a4d04587 | 744 | /* |
745 | * Shutdown the server... | |
746 | */ | |
747 | ||
1166bf58 | 748 | #ifdef HAVE_ONDEMAND |
83d8789d MS |
749 | if (OnDemand) |
750 | break; | |
1166bf58 | 751 | #endif /* HAVE_ONDEMAND */ |
83d8789d | 752 | |
7cf5915e MS |
753 | DoingShutdown = 1; |
754 | ||
a4d04587 | 755 | cupsdStopServer(); |
756 | ||
757 | /* | |
758 | * Read configuration... | |
759 | */ | |
760 | ||
ef416fc2 | 761 | if (!cupsdReadConfiguration()) |
762 | { | |
250bb8a9 | 763 | #ifdef HAVE_SYSTEMD_SD_JOURNAL_H |
a1797929 MS |
764 | sd_journal_print(LOG_ERR, "Unable to read configuration file \"%s\" - exiting.", ConfigurationFile); |
765 | #else | |
766 | syslog(LOG_LPR, "Unable to read configuration file \'%s\' - exiting.", ConfigurationFile); | |
250bb8a9 | 767 | #endif /* HAVE_SYSTEMD_SD_JOURNAL_H */ |
a1797929 | 768 | |
ef416fc2 | 769 | break; |
770 | } | |
a4d04587 | 771 | |
a4d04587 | 772 | /* |
773 | * Startup the server... | |
774 | */ | |
775 | ||
7cf5915e MS |
776 | DoingShutdown = 0; |
777 | ||
a4d04587 | 778 | cupsdStartServer(); |
49d87452 MS |
779 | |
780 | /* | |
781 | * Send a server-restarted event... | |
782 | */ | |
783 | ||
784 | cupsdAddEvent(CUPSD_EVENT_SERVER_RESTARTED, NULL, NULL, | |
785 | "Scheduler restarted."); | |
ef416fc2 | 786 | } |
787 | } | |
788 | ||
789 | /* | |
f7deaa1a | 790 | * Check for available input or ready output. If cupsdDoSelect() |
791 | * returns 0 or -1, something bad happened and we should exit | |
792 | * immediately. | |
ef416fc2 | 793 | * |
794 | * Note that we at least have one listening socket open at all | |
795 | * times. | |
796 | */ | |
797 | ||
50fe7201 MS |
798 | if ((timeout = select_timeout(fds)) > 1 && LastEvent) |
799 | timeout = 1; | |
ef416fc2 | 800 | |
1166bf58 | 801 | #ifdef HAVE_ONDEMAND |
a4d04587 | 802 | /* |
9fc5c8d4 MS |
803 | * If no other work is scheduled and we're being controlled by launchd, |
804 | * systemd, etc. then timeout after 'IdleExitTimeout' seconds of | |
a4d04587 | 805 | * inactivity... |
806 | */ | |
807 | ||
1720786e | 808 | if (timeout == 86400 && OnDemand && IdleExitTimeout && |
0627e869 MS |
809 | # ifdef HAVE_SYSTEMD |
810 | !WebInterface && | |
811 | # endif /* HAVE_SYSTEMD */ | |
9fc5c8d4 | 812 | !cupsArrayCount(ActiveJobs)) |
a4d04587 | 813 | { |
9fc5c8d4 MS |
814 | cupsd_printer_t *p = NULL; /* Current printer */ |
815 | ||
816 | if (Browsing && BrowseLocalProtocols) | |
817 | { | |
818 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); p; p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
819 | if (p->shared) | |
820 | break; | |
821 | } | |
822 | ||
823 | if (!p) | |
824 | { | |
825 | timeout = IdleExitTimeout; | |
826 | service_idle_exit = 1; | |
827 | } | |
a4d04587 | 828 | } |
829 | else | |
1720786e | 830 | service_idle_exit = 0; |
c187d9ab | 831 | #endif /* HAVE_ONDEMAND */ |
a4d04587 | 832 | |
f7deaa1a | 833 | if ((fds = cupsdDoSelect(timeout)) < 0) |
ef416fc2 | 834 | { |
ef416fc2 | 835 | /* |
836 | * Got an error from select! | |
837 | */ | |
838 | ||
37e7e6e0 | 839 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
f7deaa1a | 840 | cupsd_printer_t *p; /* Current printer */ |
37e7e6e0 | 841 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
f7deaa1a | 842 | |
f7deaa1a | 843 | if (errno == EINTR) /* Just interrupted by a signal */ |
ef416fc2 | 844 | continue; |
845 | ||
846 | /* | |
847 | * Log all sorts of debug info to help track down the problem. | |
848 | */ | |
849 | ||
f7deaa1a | 850 | cupsdLogMessage(CUPSD_LOG_EMERG, "cupsdDoSelect() failed - %s!", |
ef416fc2 | 851 | strerror(errno)); |
852 | ||
bd7854cb | 853 | for (i = 0, con = (cupsd_client_t *)cupsArrayFirst(Clients); |
854 | con; | |
855 | i ++, con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 856 | cupsdLogMessage(CUPSD_LOG_EMERG, |
857 | "Clients[%d] = %d, file = %d, state = %d", | |
996acce8 | 858 | i, con->number, con->file, httpGetState(con->http)); |
ef416fc2 | 859 | |
bd7854cb | 860 | for (i = 0, lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); |
861 | lis; | |
862 | i ++, lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
ef416fc2 | 863 | cupsdLogMessage(CUPSD_LOG_EMERG, "Listeners[%d] = %d", i, lis->fd); |
864 | ||
923edb68 | 865 | cupsdLogMessage(CUPSD_LOG_EMERG, "CGIPipes[0] = %d", CGIPipes[0]); |
866 | ||
09ec0018 | 867 | #ifdef __APPLE__ |
868 | cupsdLogMessage(CUPSD_LOG_EMERG, "SysEventPipes[0] = %d", | |
869 | SysEventPipes[0]); | |
870 | #endif /* __APPLE__ */ | |
871 | ||
ef416fc2 | 872 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); |
873 | job; | |
874 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
875 | cupsdLogMessage(CUPSD_LOG_EMERG, "Jobs[%d] = %d < [%d %d] > [%d %d]", | |
876 | job->id, | |
877 | job->status_buffer ? job->status_buffer->fd : -1, | |
878 | job->print_pipes[0], job->print_pipes[1], | |
879 | job->back_pipes[0], job->back_pipes[1]); | |
f7deaa1a | 880 | |
37e7e6e0 | 881 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
f7deaa1a | 882 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); |
883 | p; | |
884 | p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
7a14d768 MS |
885 | cupsdLogMessage(CUPSD_LOG_EMERG, "printer[%s] reg_name=\"%s\"", p->name, |
886 | p->reg_name ? p->reg_name : "(null)"); | |
37e7e6e0 | 887 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
f7deaa1a | 888 | |
ef416fc2 | 889 | break; |
890 | } | |
891 | ||
892 | current_time = time(NULL); | |
893 | ||
3dfe78b3 MS |
894 | /* |
895 | * Write dirty config/state files... | |
896 | */ | |
897 | ||
eb2cb9b0 | 898 | if (DirtyCleanTime && current_time >= DirtyCleanTime) |
3dfe78b3 | 899 | cupsdCleanDirty(); |
3dfe78b3 | 900 | |
e6013cfa MS |
901 | #ifdef __APPLE__ |
902 | /* | |
903 | * If we are going to sleep and still have pending jobs, stop them after | |
904 | * a period of time... | |
905 | */ | |
906 | ||
907 | if (SleepJobs > 0 && current_time >= SleepJobs && | |
908 | cupsArrayCount(PrintingJobs) > 0) | |
909 | { | |
910 | SleepJobs = 0; | |
e60ec91f | 911 | cupsdStopAllJobs(CUPSD_JOB_DEFAULT, 5); |
e6013cfa MS |
912 | } |
913 | #endif /* __APPLE__ */ | |
914 | ||
a4924f6c MS |
915 | #ifndef __APPLE__ |
916 | /* | |
917 | * Update the network interfaces once a minute... | |
918 | */ | |
919 | ||
920 | if ((current_time - netif_time) >= 60) | |
921 | { | |
922 | netif_time = current_time; | |
923 | NetIFUpdate = 1; | |
924 | } | |
925 | #endif /* !__APPLE__ */ | |
926 | ||
1166bf58 | 927 | #ifdef HAVE_ONDEMAND |
a4d04587 | 928 | /* |
1166bf58 MS |
929 | * If no other work was scheduled and we're being controlled by launchd, |
930 | * systemd, or upstart then timeout after 'LaunchdTimeout' seconds of | |
931 | * inactivity... | |
a4d04587 | 932 | */ |
933 | ||
1720786e | 934 | if (!fds && service_idle_exit) |
a4d04587 | 935 | { |
936 | cupsdLogMessage(CUPSD_LOG_INFO, | |
937 | "Printer sharing is off and there are no jobs pending, " | |
938 | "will restart on demand."); | |
939 | stop_scheduler = 1; | |
940 | break; | |
941 | } | |
c187d9ab | 942 | #endif /* HAVE_ONDEMAND */ |
a4d04587 | 943 | |
76cd9e37 MS |
944 | /* |
945 | * Resume listening for new connections as needed... | |
946 | */ | |
947 | ||
948 | if (ListeningPaused && ListeningPaused <= current_time && | |
949 | cupsArrayCount(Clients) < MaxClients) | |
950 | cupsdResumeListening(); | |
951 | ||
ef416fc2 | 952 | /* |
bd7854cb | 953 | * Expire subscriptions and unload completed jobs as needed... |
ef416fc2 | 954 | */ |
955 | ||
bd7854cb | 956 | if (current_time > expire_time) |
ef416fc2 | 957 | { |
bd7854cb | 958 | if (cupsArrayCount(Subscriptions) > 0) |
959 | cupsdExpireSubscriptions(NULL, NULL); | |
960 | ||
961 | cupsdUnloadCompletedJobs(); | |
ef416fc2 | 962 | |
963 | expire_time = current_time; | |
964 | } | |
965 | ||
e1bb4a6e MS |
966 | /* |
967 | * Delete stale local printers... | |
968 | */ | |
969 | ||
970 | if (current_time >= local_timeout) | |
123cfe02 | 971 | { |
e1bb4a6e | 972 | cupsdDeleteTemporaryPrinters(0); |
123cfe02 MS |
973 | local_timeout = 0; |
974 | } | |
e1bb4a6e | 975 | |
07ed0e9a | 976 | #ifndef HAVE_AUTHORIZATION_H |
ef416fc2 | 977 | /* |
f7deaa1a | 978 | * Update the root certificate once every 5 minutes if we have client |
979 | * connections... | |
ef416fc2 | 980 | */ |
981 | ||
f7deaa1a | 982 | if ((current_time - RootCertTime) >= RootCertDuration && RootCertDuration && |
983 | !RunUser && cupsArrayCount(Clients)) | |
984 | { | |
985 | /* | |
986 | * Update the root certificate... | |
987 | */ | |
988 | ||
989 | cupsdDeleteCert(0); | |
0fa6c7fa | 990 | cupsdAddCert(0, "root", cupsdDefaultAuthType()); |
f7deaa1a | 991 | } |
07ed0e9a | 992 | #endif /* !HAVE_AUTHORIZATION_H */ |
ef416fc2 | 993 | |
994 | /* | |
995 | * Check for new data on the client sockets... | |
996 | */ | |
997 | ||
bd7854cb | 998 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
999 | con; | |
1000 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 1001 | { |
1002 | /* | |
f7deaa1a | 1003 | * Process pending data in the input buffer... |
ef416fc2 | 1004 | */ |
1005 | ||
1720786e | 1006 | if (httpGetReady(con->http)) |
ef416fc2 | 1007 | { |
f7deaa1a | 1008 | cupsdReadClient(con); |
1009 | continue; | |
ef416fc2 | 1010 | } |
1011 | ||
1012 | /* | |
1013 | * Check the activity and close old clients... | |
1014 | */ | |
1015 | ||
1016 | activity = current_time - Timeout; | |
1720786e | 1017 | if (httpGetActivity(con->http) < activity && !con->pipe_pid) |
ef416fc2 | 1018 | { |
1720786e | 1019 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Closing client %d after %d seconds of inactivity.", con->number, Timeout); |
ef416fc2 | 1020 | |
1021 | cupsdCloseClient(con); | |
ef416fc2 | 1022 | continue; |
1023 | } | |
1024 | } | |
1025 | ||
1026 | /* | |
1027 | * Update any pending multi-file documents... | |
1028 | */ | |
1029 | ||
1030 | if ((current_time - senddoc_time) >= 10) | |
1031 | { | |
1032 | cupsdCheckJobs(); | |
1033 | senddoc_time = current_time; | |
1034 | } | |
1035 | ||
82cc1f9a MS |
1036 | /* |
1037 | * Clean job history... | |
1038 | */ | |
1039 | ||
1040 | if (JobHistoryUpdate && current_time >= JobHistoryUpdate) | |
1041 | cupsdCleanJobs(); | |
1042 | ||
ef416fc2 | 1043 | /* |
5bd77a73 | 1044 | * Log statistics at most once a minute when in debug mode... |
ef416fc2 | 1045 | */ |
1046 | ||
5bd77a73 | 1047 | if ((current_time - report_time) >= 60 && LogLevel >= CUPSD_LOG_DEBUG) |
ef416fc2 | 1048 | { |
5bd77a73 MS |
1049 | size_t string_count, /* String count */ |
1050 | alloc_bytes, /* Allocated string bytes */ | |
1051 | total_bytes; /* Total string bytes */ | |
4400e98d | 1052 | #ifdef HAVE_MALLINFO |
5bd77a73 | 1053 | struct mallinfo mem; /* Malloc information */ |
ef416fc2 | 1054 | |
1055 | ||
1056 | mem = mallinfo(); | |
5bd77a73 MS |
1057 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-arena=%lu", mem.arena); |
1058 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-used=%lu", | |
1059 | mem.usmblks + mem.uordblks); | |
1060 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-free=%lu", | |
ef416fc2 | 1061 | mem.fsmblks + mem.fordblks); |
4400e98d | 1062 | #endif /* HAVE_MALLINFO */ |
1063 | ||
5bd77a73 MS |
1064 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: clients=%d", |
1065 | cupsArrayCount(Clients)); | |
1066 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: jobs=%d", | |
1067 | cupsArrayCount(Jobs)); | |
1068 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: jobs-active=%d", | |
1069 | cupsArrayCount(ActiveJobs)); | |
1070 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: printers=%d", | |
1071 | cupsArrayCount(Printers)); | |
5bd77a73 | 1072 | |
757d2cad | 1073 | string_count = _cupsStrStatistics(&alloc_bytes, &total_bytes); |
5bd77a73 MS |
1074 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
1075 | "Report: stringpool-string-count=" CUPS_LLFMT, | |
1076 | CUPS_LLCAST string_count); | |
1077 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1078 | "Report: stringpool-alloc-bytes=" CUPS_LLFMT, | |
1079 | CUPS_LLCAST alloc_bytes); | |
1080 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1081 | "Report: stringpool-total-bytes=" CUPS_LLFMT, | |
4400e98d | 1082 | CUPS_LLCAST total_bytes); |
1083 | ||
5bd77a73 | 1084 | report_time = current_time; |
ef416fc2 | 1085 | } |
ef416fc2 | 1086 | |
fa73b229 | 1087 | /* |
1088 | * Handle OS-specific event notification for any events that have | |
1089 | * accumulated. Don't send these more than once a second... | |
1090 | */ | |
1091 | ||
50fe7201 | 1092 | if (LastEvent && (current_time - event_time) >= 1) |
fa73b229 | 1093 | { |
1094 | #ifdef HAVE_NOTIFY_POST | |
a41f09e2 MS |
1095 | if (LastEvent & (CUPSD_EVENT_PRINTER_ADDED | |
1096 | CUPSD_EVENT_PRINTER_DELETED | | |
1097 | CUPSD_EVENT_PRINTER_MODIFIED)) | |
fa73b229 | 1098 | { |
e00b005a | 1099 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1100 | "notify_post(\"com.apple.printerListChange\")"); |
1101 | notify_post("com.apple.printerListChange"); | |
1102 | } | |
1103 | ||
1104 | if (LastEvent & CUPSD_EVENT_PRINTER_STATE_CHANGED) | |
1105 | { | |
e00b005a | 1106 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1107 | "notify_post(\"com.apple.printerHistoryChange\")"); |
1108 | notify_post("com.apple.printerHistoryChange"); | |
1109 | } | |
1110 | ||
1111 | if (LastEvent & (CUPSD_EVENT_JOB_STATE_CHANGED | | |
1112 | CUPSD_EVENT_JOB_CONFIG_CHANGED | | |
1113 | CUPSD_EVENT_JOB_PROGRESS)) | |
1114 | { | |
e00b005a | 1115 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1116 | "notify_post(\"com.apple.jobChange\")"); |
1117 | notify_post("com.apple.jobChange"); | |
1118 | } | |
1119 | #endif /* HAVE_NOTIFY_POST */ | |
1120 | ||
1121 | /* | |
e53920b9 | 1122 | * Reset the accumulated events... |
fa73b229 | 1123 | */ |
1124 | ||
50fe7201 MS |
1125 | LastEvent = CUPSD_EVENT_NONE; |
1126 | event_time = current_time; | |
fa73b229 | 1127 | } |
ef416fc2 | 1128 | } |
1129 | ||
1130 | /* | |
1131 | * Log a message based on what happened... | |
1132 | */ | |
1133 | ||
1134 | if (stop_scheduler) | |
49d87452 | 1135 | { |
ef416fc2 | 1136 | cupsdLogMessage(CUPSD_LOG_INFO, "Scheduler shutting down normally."); |
49d87452 MS |
1137 | cupsdAddEvent(CUPSD_EVENT_SERVER_STOPPED, NULL, NULL, |
1138 | "Scheduler shutting down normally."); | |
1139 | } | |
ef416fc2 | 1140 | else |
49d87452 | 1141 | { |
ef416fc2 | 1142 | cupsdLogMessage(CUPSD_LOG_ERROR, |
1143 | "Scheduler shutting down due to program error."); | |
49d87452 MS |
1144 | cupsdAddEvent(CUPSD_EVENT_SERVER_STOPPED, NULL, NULL, |
1145 | "Scheduler shutting down due to program error."); | |
1146 | } | |
ef416fc2 | 1147 | |
1148 | /* | |
7ff4fea9 | 1149 | * Close all network clients... |
ef416fc2 | 1150 | */ |
1151 | ||
7cf5915e MS |
1152 | DoingShutdown = 1; |
1153 | ||
ef416fc2 | 1154 | cupsdStopServer(); |
1155 | ||
7ff4fea9 | 1156 | /* |
03bc3ef4 | 1157 | * Update the KeepAlive/PID file as needed... |
7ff4fea9 MS |
1158 | */ |
1159 | ||
03bc3ef4 | 1160 | service_checkout(1); |
7ff4fea9 MS |
1161 | |
1162 | /* | |
1163 | * Stop all jobs... | |
1164 | */ | |
1165 | ||
bd7854cb | 1166 | cupsdFreeAllJobs(); |
ef416fc2 | 1167 | |
b4974142 MS |
1168 | /* |
1169 | * Delete all temporary printers... | |
1170 | */ | |
1171 | ||
1172 | cupsdDeleteTemporaryPrinters(1); | |
1173 | ||
e1d6a774 | 1174 | #ifdef __APPLE__ |
7ff4fea9 MS |
1175 | /* |
1176 | * Stop monitoring system event monitoring... | |
1177 | */ | |
1178 | ||
1340db2d MS |
1179 | if (use_sysman) |
1180 | cupsdStopSystemMonitor(); | |
e1d6a774 | 1181 | #endif /* __APPLE__ */ |
09ec0018 | 1182 | |
f7deaa1a | 1183 | cupsdStopSelect(); |
ef416fc2 | 1184 | |
1185 | return (!stop_scheduler); | |
1186 | } | |
1187 | ||
1188 | ||
10d09e33 MS |
1189 | /* |
1190 | * 'cupsdAddString()' - Copy and add a string to an array. | |
1191 | */ | |
1192 | ||
1193 | int /* O - 1 on success, 0 on failure */ | |
1194 | cupsdAddString(cups_array_t **a, /* IO - String array */ | |
1195 | const char *s) /* I - String to copy and add */ | |
1196 | { | |
1197 | if (!*a) | |
1198 | *a = cupsArrayNew3((cups_array_func_t)strcmp, NULL, | |
1199 | (cups_ahash_func_t)NULL, 0, | |
5e6c3df7 MS |
1200 | (cups_acopy_func_t)strdup, |
1201 | (cups_afree_func_t)free); | |
10d09e33 MS |
1202 | |
1203 | return (cupsArrayAdd(*a, (char *)s)); | |
1204 | } | |
1205 | ||
1206 | ||
d7871c8c MS |
1207 | /* |
1208 | * 'cupsdCheckProcess()' - Tell the main loop to check for dead children. | |
1209 | */ | |
1210 | ||
1211 | void | |
1212 | cupsdCheckProcess(void) | |
1213 | { | |
1214 | /* | |
1215 | * Flag that we have dead children... | |
1216 | */ | |
1217 | ||
1218 | dead_children = 1; | |
1219 | } | |
1220 | ||
1221 | ||
10d09e33 MS |
1222 | /* |
1223 | * 'cupsdClearString()' - Clear a string. | |
1224 | */ | |
1225 | ||
1226 | void | |
1227 | cupsdClearString(char **s) /* O - String value */ | |
1228 | { | |
1229 | if (s && *s) | |
1230 | { | |
5e6c3df7 | 1231 | free(*s); |
10d09e33 MS |
1232 | *s = NULL; |
1233 | } | |
1234 | } | |
1235 | ||
1236 | ||
10d09e33 MS |
1237 | /* |
1238 | * 'cupsdFreeStrings()' - Free an array of strings. | |
1239 | */ | |
1240 | ||
1241 | void | |
1242 | cupsdFreeStrings(cups_array_t **a) /* IO - String array */ | |
1243 | { | |
1244 | if (*a) | |
1245 | { | |
1246 | cupsArrayDelete(*a); | |
1247 | *a = NULL; | |
1248 | } | |
1249 | } | |
1250 | ||
1251 | ||
1252 | /* | |
1253 | * 'cupsdHoldSignals()' - Hold child and termination signals. | |
1254 | */ | |
1255 | ||
1256 | void | |
1257 | cupsdHoldSignals(void) | |
1258 | { | |
1259 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
1260 | sigset_t newmask; /* New POSIX signal mask */ | |
1261 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
1262 | ||
1263 | ||
1264 | holdcount ++; | |
1265 | if (holdcount > 1) | |
1266 | return; | |
1267 | ||
1268 | #ifdef HAVE_SIGSET | |
1269 | sighold(SIGTERM); | |
1270 | sighold(SIGCHLD); | |
1271 | #elif defined(HAVE_SIGACTION) | |
1272 | sigemptyset(&newmask); | |
1273 | sigaddset(&newmask, SIGTERM); | |
1274 | sigaddset(&newmask, SIGCHLD); | |
1275 | sigprocmask(SIG_BLOCK, &newmask, &holdmask); | |
1276 | #endif /* HAVE_SIGSET */ | |
1277 | } | |
1278 | ||
1279 | ||
ef416fc2 | 1280 | /* |
1281 | * 'cupsdReleaseSignals()' - Release signals for delivery. | |
1282 | */ | |
1283 | ||
1284 | void | |
1285 | cupsdReleaseSignals(void) | |
1286 | { | |
1287 | holdcount --; | |
1288 | if (holdcount > 0) | |
1289 | return; | |
1290 | ||
1291 | #ifdef HAVE_SIGSET | |
1292 | sigrelse(SIGTERM); | |
1293 | sigrelse(SIGCHLD); | |
1294 | #elif defined(HAVE_SIGACTION) | |
1295 | sigprocmask(SIG_SETMASK, &holdmask, NULL); | |
1296 | #endif /* HAVE_SIGSET */ | |
1297 | } | |
1298 | ||
1299 | ||
1300 | /* | |
1301 | * 'cupsdSetString()' - Set a string value. | |
1302 | */ | |
1303 | ||
1304 | void | |
1305 | cupsdSetString(char **s, /* O - New string */ | |
1306 | const char *v) /* I - String value */ | |
1307 | { | |
1308 | if (!s || *s == v) | |
1309 | return; | |
1310 | ||
1311 | if (*s) | |
5e6c3df7 | 1312 | free(*s); |
ef416fc2 | 1313 | |
1314 | if (v) | |
5e6c3df7 | 1315 | *s = strdup(v); |
ef416fc2 | 1316 | else |
1317 | *s = NULL; | |
1318 | } | |
1319 | ||
1320 | ||
1321 | /* | |
1322 | * 'cupsdSetStringf()' - Set a formatted string value. | |
1323 | */ | |
1324 | ||
1325 | void | |
1326 | cupsdSetStringf(char **s, /* O - New string */ | |
1327 | const char *f, /* I - Printf-style format string */ | |
1328 | ...) /* I - Additional args as needed */ | |
1329 | { | |
94436c5a | 1330 | char v[65536 + 64]; /* Formatting string value */ |
ef416fc2 | 1331 | va_list ap; /* Argument pointer */ |
1332 | char *olds; /* Old string */ | |
1333 | ||
1334 | ||
1335 | if (!s) | |
1336 | return; | |
1337 | ||
1338 | olds = *s; | |
1339 | ||
1340 | if (f) | |
1341 | { | |
1342 | va_start(ap, f); | |
1343 | vsnprintf(v, sizeof(v), f, ap); | |
1344 | va_end(ap); | |
1345 | ||
5e6c3df7 | 1346 | *s = strdup(v); |
ef416fc2 | 1347 | } |
1348 | else | |
1349 | *s = NULL; | |
1350 | ||
1351 | if (olds) | |
5e6c3df7 | 1352 | free(olds); |
ef416fc2 | 1353 | } |
1354 | ||
1355 | ||
1356 | /* | |
1357 | * 'parent_handler()' - Catch USR1/CHLD signals... | |
1358 | */ | |
1359 | ||
1360 | static void | |
1361 | parent_handler(int sig) /* I - Signal */ | |
1362 | { | |
1363 | /* | |
1364 | * Store the signal we got from the OS and return... | |
1365 | */ | |
1366 | ||
1367 | parent_signal = sig; | |
1368 | } | |
1369 | ||
1370 | ||
1371 | /* | |
1372 | * 'process_children()' - Process all dead children... | |
1373 | */ | |
1374 | ||
1375 | static void | |
1376 | process_children(void) | |
1377 | { | |
1378 | int status; /* Exit status of child */ | |
b9faaae1 MS |
1379 | int pid, /* Process ID of child */ |
1380 | job_id; /* Job ID of child */ | |
ef416fc2 | 1381 | cupsd_job_t *job; /* Current job */ |
1382 | int i; /* Looping var */ | |
e00b005a | 1383 | char name[1024]; /* Process name */ |
dcb445bc | 1384 | const char *type; /* Type of program */ |
ef416fc2 | 1385 | |
1386 | ||
1387 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "process_children()"); | |
1388 | ||
1389 | /* | |
1390 | * Reset the dead_children flag... | |
1391 | */ | |
1392 | ||
1393 | dead_children = 0; | |
1394 | ||
1395 | /* | |
1396 | * Collect the exit status of some children... | |
1397 | */ | |
1398 | ||
1399 | #ifdef HAVE_WAITPID | |
1400 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) | |
1401 | #elif defined(HAVE_WAIT3) | |
1402 | while ((pid = wait3(&status, WNOHANG, NULL)) > 0) | |
1403 | #else | |
1404 | if ((pid = wait(&status)) > 0) | |
1405 | #endif /* HAVE_WAITPID */ | |
1406 | { | |
ef416fc2 | 1407 | /* |
745129be | 1408 | * Collect the name of the process that finished... |
ef416fc2 | 1409 | */ |
1410 | ||
b9faaae1 | 1411 | cupsdFinishProcess(pid, name, sizeof(name), &job_id); |
e00b005a | 1412 | |
ef416fc2 | 1413 | /* |
1414 | * Delete certificates for CGI processes... | |
1415 | */ | |
1416 | ||
1417 | if (pid) | |
1418 | cupsdDeleteCert(pid); | |
1419 | ||
1420 | /* | |
b9faaae1 | 1421 | * Handle completed job filters... |
ef416fc2 | 1422 | */ |
1423 | ||
dcb445bc MS |
1424 | if (job_id > 0) |
1425 | job = cupsdFindJob(job_id); | |
1426 | else | |
1427 | job = NULL; | |
1428 | ||
1429 | if (job) | |
b9faaae1 MS |
1430 | { |
1431 | for (i = 0; job->filters[i]; i ++) | |
1432 | if (job->filters[i] == pid) | |
1433 | break; | |
1434 | ||
1435 | if (job->filters[i] || job->backend == pid) | |
ef416fc2 | 1436 | { |
b9faaae1 MS |
1437 | /* |
1438 | * OK, this process has gone away; what's left? | |
1439 | */ | |
1440 | ||
1441 | if (job->filters[i]) | |
dcb445bc | 1442 | { |
b9faaae1 | 1443 | job->filters[i] = -pid; |
dcb445bc MS |
1444 | type = "Filter"; |
1445 | } | |
b9faaae1 | 1446 | else |
dcb445bc | 1447 | { |
b9faaae1 | 1448 | job->backend = -pid; |
dcb445bc MS |
1449 | type = "Backend"; |
1450 | } | |
ef416fc2 | 1451 | |
b9faaae1 | 1452 | if (status && status != SIGTERM && status != SIGKILL && |
f3c17241 | 1453 | status != SIGPIPE) |
ef416fc2 | 1454 | { |
1455 | /* | |
b9faaae1 MS |
1456 | * An error occurred; save the exit status so we know to stop |
1457 | * the printer or cancel the job when all of the filters finish... | |
1458 | * | |
1459 | * A negative status indicates that the backend failed and the | |
1460 | * printer needs to be stopped. | |
f3c17241 MS |
1461 | * |
1462 | * In order to preserve the most serious status, we always log | |
1463 | * when a process dies due to a signal (e.g. SIGABRT, SIGSEGV, | |
1464 | * and SIGBUS) and prefer to log the backend exit status over a | |
1465 | * filter's. | |
ef416fc2 | 1466 | */ |
1467 | ||
f3c17241 MS |
1468 | int old_status = abs(job->status); |
1469 | ||
1470 | if (WIFSIGNALED(status) || /* This process crashed, or */ | |
1471 | !job->status || /* No process had a status, or */ | |
1472 | (!job->filters[i] && WIFEXITED(old_status))) | |
1473 | { /* Backend and filter didn't crash */ | |
1474 | if (job->filters[i]) | |
1475 | job->status = status; /* Filter failed */ | |
1476 | else | |
1477 | job->status = -status; /* Backend failed */ | |
1478 | } | |
ef416fc2 | 1479 | |
f11a948a | 1480 | if (job->state_value == IPP_JOB_PROCESSING && |
dcb445bc MS |
1481 | job->status_level > CUPSD_LOG_ERROR && |
1482 | (job->filters[i] || !WIFEXITED(status))) | |
ef416fc2 | 1483 | { |
f11a948a MS |
1484 | char message[1024]; /* New printer-state-message */ |
1485 | ||
1486 | ||
b9faaae1 | 1487 | job->status_level = CUPSD_LOG_ERROR; |
ef416fc2 | 1488 | |
dcb445bc | 1489 | snprintf(message, sizeof(message), "%s failed", type); |
f11a948a | 1490 | |
e07d4801 MS |
1491 | if (job->printer) |
1492 | { | |
f11a948a MS |
1493 | strlcpy(job->printer->state_message, message, |
1494 | sizeof(job->printer->state_message)); | |
e07d4801 MS |
1495 | } |
1496 | ||
1497 | if (!job->attrs) | |
1498 | cupsdLoadJob(job); | |
e00b005a | 1499 | |
e07d4801 | 1500 | if (!job->printer_message && job->attrs) |
e00b005a | 1501 | { |
b9faaae1 MS |
1502 | if ((job->printer_message = |
1503 | ippFindAttribute(job->attrs, "job-printer-state-message", | |
1504 | IPP_TAG_TEXT)) == NULL) | |
1505 | job->printer_message = ippAddString(job->attrs, IPP_TAG_JOB, | |
1506 | IPP_TAG_TEXT, | |
1507 | "job-printer-state-message", | |
5a662dc0 | 1508 | NULL, NULL); |
e00b005a | 1509 | } |
b9faaae1 | 1510 | |
e07d4801 | 1511 | if (job->printer_message) |
5e6c3df7 | 1512 | ippSetString(job->attrs, &job->printer_message, 0, message); |
ef416fc2 | 1513 | } |
b9faaae1 | 1514 | } |
ef416fc2 | 1515 | |
b9faaae1 MS |
1516 | /* |
1517 | * If this is not the last file in a job, see if all of the | |
1518 | * filters are done, and if so move to the next file. | |
1519 | */ | |
ef416fc2 | 1520 | |
5a4c3fcf MS |
1521 | if (job->state_value >= IPP_JOB_CANCELED) |
1522 | { | |
1523 | /* | |
1524 | * Remove the job from the active list if there are no processes still | |
1525 | * running for it... | |
1526 | */ | |
1527 | ||
1528 | for (i = 0; job->filters[i] < 0; i++); | |
1529 | ||
1530 | if (!job->filters[i] && job->backend <= 0) | |
1531 | cupsArrayRemove(ActiveJobs, job); | |
1532 | } | |
1533 | else if (job->current_file < job->num_files && job->printer) | |
b9faaae1 MS |
1534 | { |
1535 | for (i = 0; job->filters[i] < 0; i ++); | |
ef416fc2 | 1536 | |
82f97232 MS |
1537 | if (!job->filters[i] && |
1538 | (!job->printer->pc || !job->printer->pc->single_file || | |
1539 | job->backend <= 0)) | |
b9faaae1 MS |
1540 | { |
1541 | /* | |
1542 | * Process the next file... | |
1543 | */ | |
ef416fc2 | 1544 | |
b9faaae1 | 1545 | cupsdContinueJob(job); |
ef416fc2 | 1546 | } |
ef416fc2 | 1547 | } |
1548 | } | |
b9faaae1 | 1549 | } |
3dfe78b3 MS |
1550 | |
1551 | /* | |
745129be MS |
1552 | * Show the exit status as needed, ignoring SIGTERM and SIGKILL errors |
1553 | * since they come when we kill/end a process... | |
3dfe78b3 MS |
1554 | */ |
1555 | ||
745129be MS |
1556 | if (status == SIGTERM || status == SIGKILL) |
1557 | { | |
dcb445bc MS |
1558 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1559 | "PID %d (%s) was terminated normally with signal %d.", pid, | |
1560 | name, status); | |
745129be | 1561 | } |
5a6b583a MS |
1562 | else if (status == SIGPIPE) |
1563 | { | |
dcb445bc MS |
1564 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1565 | "PID %d (%s) did not catch or ignore signal %d.", pid, name, | |
1566 | status); | |
5a6b583a | 1567 | } |
745129be | 1568 | else if (status) |
3dfe78b3 MS |
1569 | { |
1570 | if (WIFEXITED(status)) | |
88f9aafc MS |
1571 | { |
1572 | int code = WEXITSTATUS(status); /* Exit code */ | |
1573 | ||
1574 | if (code > 100) | |
dcb445bc MS |
1575 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1576 | "PID %d (%s) stopped with status %d (%s)", pid, name, | |
1577 | code, strerror(code - 100)); | |
88f9aafc | 1578 | else |
dcb445bc MS |
1579 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1580 | "PID %d (%s) stopped with status %d.", pid, name, code); | |
88f9aafc | 1581 | } |
3dfe78b3 | 1582 | else |
dcb445bc MS |
1583 | cupsdLogJob(job, CUPSD_LOG_DEBUG, "PID %d (%s) crashed on signal %d.", |
1584 | pid, name, WTERMSIG(status)); | |
3dfe78b3 MS |
1585 | |
1586 | if (LogLevel < CUPSD_LOG_DEBUG) | |
dcb445bc MS |
1587 | cupsdLogJob(job, CUPSD_LOG_INFO, |
1588 | "Hint: Try setting the LogLevel to \"debug\" to find out " | |
1589 | "more."); | |
3dfe78b3 MS |
1590 | } |
1591 | else | |
dcb445bc MS |
1592 | cupsdLogJob(job, CUPSD_LOG_DEBUG, "PID %d (%s) exited with no errors.", |
1593 | pid, name); | |
ef416fc2 | 1594 | } |
dfd5680b MS |
1595 | |
1596 | /* | |
1597 | * If wait*() is interrupted by a signal, tell main() to call us again... | |
1598 | */ | |
1599 | ||
1600 | if (pid < 0 && errno == EINTR) | |
1601 | dead_children = 1; | |
ef416fc2 | 1602 | } |
1603 | ||
1604 | ||
ef416fc2 | 1605 | /* |
1606 | * 'select_timeout()' - Calculate the select timeout value. | |
1607 | * | |
1608 | */ | |
1609 | ||
1610 | static long /* O - Number of seconds */ | |
bd7854cb | 1611 | select_timeout(int fds) /* I - Number of descriptors returned */ |
ef416fc2 | 1612 | { |
ef416fc2 | 1613 | long timeout; /* Timeout for select */ |
1614 | time_t now; /* Current time */ | |
1615 | cupsd_client_t *con; /* Client information */ | |
ef416fc2 | 1616 | cupsd_job_t *job; /* Job information */ |
e1bb4a6e | 1617 | cupsd_printer_t *printer; /* Printer information */ |
ef416fc2 | 1618 | const char *why; /* Debugging aid */ |
1619 | ||
1620 | ||
82cc1f9a MS |
1621 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout: JobHistoryUpdate=%ld", |
1622 | (long)JobHistoryUpdate); | |
1623 | ||
ef416fc2 | 1624 | /* |
1625 | * Check to see if any of the clients have pending data to be | |
1626 | * processed; if so, the timeout should be 0... | |
1627 | */ | |
1628 | ||
bd7854cb | 1629 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
1630 | con; | |
1631 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
1720786e | 1632 | if (httpGetReady(con->http)) |
ef416fc2 | 1633 | return (0); |
1634 | ||
1635 | /* | |
f7deaa1a | 1636 | * If select has been active in the last second (fds > 0) or we have |
ef416fc2 | 1637 | * many resources in use then don't bother trying to optimize the |
1638 | * timeout, just make it 1 second. | |
1639 | */ | |
1640 | ||
f7deaa1a | 1641 | if (fds > 0 || cupsArrayCount(Clients) > 50) |
ef416fc2 | 1642 | return (1); |
1643 | ||
1644 | /* | |
1645 | * Otherwise, check all of the possible events that we need to wake for... | |
1646 | */ | |
1647 | ||
1648 | now = time(NULL); | |
1649 | timeout = now + 86400; /* 86400 == 1 day */ | |
1650 | why = "do nothing"; | |
1651 | ||
e6013cfa MS |
1652 | #ifdef __APPLE__ |
1653 | /* | |
b4974142 | 1654 | * When going to sleep, wake up to abort jobs that don't complete in time. |
e6013cfa MS |
1655 | */ |
1656 | ||
1657 | if (SleepJobs > 0 && SleepJobs < timeout) | |
1658 | { | |
1659 | timeout = SleepJobs; | |
b4974142 | 1660 | why = "abort jobs before sleeping"; |
e6013cfa MS |
1661 | } |
1662 | #endif /* __APPLE__ */ | |
1663 | ||
76cd9e37 MS |
1664 | /* |
1665 | * Check whether we are accepting new connections... | |
1666 | */ | |
1667 | ||
1668 | if (ListeningPaused > 0 && cupsArrayCount(Clients) < MaxClients && | |
1669 | ListeningPaused < timeout) | |
1670 | { | |
1671 | if (ListeningPaused <= now) | |
1672 | timeout = now; | |
1673 | else | |
1674 | timeout = ListeningPaused; | |
1675 | ||
1676 | why = "resume listening"; | |
1677 | } | |
1678 | ||
ef416fc2 | 1679 | /* |
1680 | * Check the activity and close old clients... | |
1681 | */ | |
1682 | ||
bd7854cb | 1683 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
1684 | con; | |
1685 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
1720786e | 1686 | if ((httpGetActivity(con->http) + Timeout) < timeout) |
ef416fc2 | 1687 | { |
1720786e | 1688 | timeout = httpGetActivity(con->http) + Timeout; |
ef416fc2 | 1689 | why = "timeout a client connection"; |
1690 | } | |
1691 | ||
3dfe78b3 | 1692 | /* |
bf3816c7 | 1693 | * Write out changes to configuration and state files... |
3dfe78b3 MS |
1694 | */ |
1695 | ||
1696 | if (DirtyCleanTime && timeout > DirtyCleanTime) | |
1697 | { | |
1698 | timeout = DirtyCleanTime; | |
1699 | why = "write dirty config/state files"; | |
1700 | } | |
1701 | ||
ef416fc2 | 1702 | /* |
82cc1f9a | 1703 | * Check for any job activity... |
ef416fc2 | 1704 | */ |
1705 | ||
82cc1f9a MS |
1706 | if (JobHistoryUpdate && timeout > JobHistoryUpdate) |
1707 | { | |
1708 | timeout = JobHistoryUpdate; | |
1709 | why = "update job history"; | |
1710 | } | |
1711 | ||
238c3832 MS |
1712 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); |
1713 | job; | |
1714 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
ef416fc2 | 1715 | { |
82cc1f9a MS |
1716 | if (job->cancel_time && job->cancel_time < timeout) |
1717 | { | |
1718 | timeout = job->cancel_time; | |
1719 | why = "cancel stuck jobs"; | |
1720 | } | |
1721 | ||
238c3832 MS |
1722 | if (job->kill_time && job->kill_time < timeout) |
1723 | { | |
1724 | timeout = job->kill_time; | |
1725 | why = "kill unresponsive jobs"; | |
1726 | } | |
82cc1f9a MS |
1727 | |
1728 | if (job->state_value == IPP_JOB_HELD && job->hold_until < timeout) | |
238c3832 MS |
1729 | { |
1730 | timeout = job->hold_until; | |
1731 | why = "release held jobs"; | |
1732 | } | |
82cc1f9a MS |
1733 | |
1734 | if (job->state_value == IPP_JOB_PENDING && timeout > (now + 10)) | |
238c3832 MS |
1735 | { |
1736 | timeout = now + 10; | |
1737 | why = "start pending jobs"; | |
1738 | break; | |
1739 | } | |
ef416fc2 | 1740 | } |
1741 | ||
e1bb4a6e MS |
1742 | /* |
1743 | * Check for temporary printers that need to be deleted... | |
1744 | */ | |
1745 | ||
1746 | for (printer = (cupsd_printer_t *)cupsArrayFirst(Printers); printer; printer = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
1747 | { | |
123cfe02 | 1748 | if (printer->temporary && !printer->job && (!local_timeout || local_timeout > (printer->state_time + 60))) |
e1bb4a6e MS |
1749 | local_timeout = printer->state_time + 60; |
1750 | } | |
1751 | ||
123cfe02 | 1752 | if (timeout > local_timeout && local_timeout) |
e1bb4a6e MS |
1753 | { |
1754 | timeout = local_timeout; | |
1755 | why = "delete stale local printers"; | |
1756 | } | |
1757 | ||
ef416fc2 | 1758 | /* |
dcb445bc MS |
1759 | * Adjust from absolute to relative time. We add 1 second to the timeout since |
1760 | * events occur after the timeout expires, and limit the timeout to 86400 | |
1761 | * seconds (1 day) to avoid select() timeout limits present on some operating | |
ef416fc2 | 1762 | * systems... |
1763 | */ | |
1764 | ||
1765 | timeout = timeout - now + 1; | |
1766 | ||
1767 | if (timeout < 1) | |
1768 | timeout = 1; | |
1769 | else if (timeout > 86400) | |
1770 | timeout = 86400; | |
1771 | ||
1772 | /* | |
1773 | * Log and return the timeout value... | |
1774 | */ | |
1775 | ||
f7deaa1a | 1776 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout(%d): %ld seconds to %s", |
1777 | fds, timeout, why); | |
ef416fc2 | 1778 | |
1779 | return (timeout); | |
1780 | } | |
1781 | ||
1782 | ||
e6013cfa MS |
1783 | /* |
1784 | * 'sigchld_handler()' - Handle 'child' signals from old processes. | |
1785 | */ | |
1786 | ||
1787 | static void | |
1788 | sigchld_handler(int sig) /* I - Signal number */ | |
1789 | { | |
1790 | (void)sig; | |
1791 | ||
1792 | /* | |
1793 | * Flag that we have dead children... | |
1794 | */ | |
1795 | ||
1796 | dead_children = 1; | |
1797 | ||
1798 | /* | |
1799 | * Reset the signal handler as needed... | |
1800 | */ | |
1801 | ||
1802 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
1803 | signal(SIGCLD, sigchld_handler); | |
1804 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
1805 | } | |
1806 | ||
1807 | ||
1808 | /* | |
1809 | * 'sighup_handler()' - Handle 'hangup' signals to reconfigure the scheduler. | |
1810 | */ | |
1811 | ||
1812 | static void | |
1813 | sighup_handler(int sig) /* I - Signal number */ | |
1814 | { | |
1815 | (void)sig; | |
1816 | ||
1817 | NeedReload = RELOAD_ALL; | |
1818 | ReloadTime = time(NULL); | |
1819 | ||
1820 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
1821 | signal(SIGHUP, sighup_handler); | |
1822 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
1823 | } | |
1824 | ||
1825 | ||
1826 | /* | |
1827 | * 'sigterm_handler()' - Handle 'terminate' signals that stop the scheduler. | |
1828 | */ | |
1829 | ||
1830 | static void | |
1831 | sigterm_handler(int sig) /* I - Signal number */ | |
1832 | { | |
1833 | (void)sig; /* remove compiler warnings... */ | |
1834 | ||
1835 | /* | |
1836 | * Flag that we should stop and return... | |
1837 | */ | |
1838 | ||
1839 | stop_scheduler = 1; | |
1840 | } | |
1841 | ||
1842 | ||
1166bf58 | 1843 | #ifdef HAVE_ONDEMAND |
26c14fa6 | 1844 | /* |
1166bf58 | 1845 | * 'service_add_listener()' - Bind an open fd as a Listener. |
26c14fa6 BN |
1846 | */ |
1847 | ||
1848 | static void | |
1166bf58 MS |
1849 | service_add_listener(int fd, /* I - Socket file descriptor */ |
1850 | int idx) /* I - Listener number, for logging */ | |
26c14fa6 BN |
1851 | { |
1852 | cupsd_listener_t *lis; /* Listeners array */ | |
1853 | http_addr_t addr; /* Address variable */ | |
1854 | socklen_t addrlen; /* Length of address */ | |
1855 | char s[256]; /* String addresss */ | |
1856 | ||
1166bf58 | 1857 | |
26c14fa6 BN |
1858 | addrlen = sizeof(addr); |
1859 | ||
1860 | if (getsockname(fd, (struct sockaddr *)&addr, &addrlen)) | |
1861 | { | |
1166bf58 | 1862 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_add_listener: Unable to get local address for listener #%d: %s", idx + 1, strerror(errno)); |
26c14fa6 BN |
1863 | return; |
1864 | } | |
1865 | ||
1166bf58 | 1866 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_add_listener: Listener #%d at fd %d, \"%s\".", idx + 1, fd, httpAddrString(&addr, s, sizeof(s))); |
26c14fa6 | 1867 | |
1166bf58 MS |
1868 | /* |
1869 | * Try to match the on-demand socket address to one of the listeners... | |
1870 | */ | |
26c14fa6 BN |
1871 | |
1872 | for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); | |
1873 | lis; | |
1874 | lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
1875 | if (httpAddrEqual(&lis->address, &addr)) | |
1876 | break; | |
1877 | ||
1878 | /* | |
1879 | * Add a new listener If there's no match... | |
1880 | */ | |
1881 | ||
1882 | if (lis) | |
1883 | { | |
1166bf58 | 1884 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_add_listener: Matched existing listener #%d to %s.", idx + 1, httpAddrString(&(lis->address), s, sizeof(s))); |
26c14fa6 BN |
1885 | } |
1886 | else | |
1887 | { | |
1166bf58 | 1888 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_add_listener: Adding new listener #%d for %s.", idx + 1, httpAddrString(&addr, s, sizeof(s))); |
26c14fa6 BN |
1889 | |
1890 | if ((lis = calloc(1, sizeof(cupsd_listener_t))) == NULL) | |
1891 | { | |
1166bf58 | 1892 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_add_listener: Unable to allocate listener: %s.", strerror(errno)); |
26c14fa6 BN |
1893 | exit(EXIT_FAILURE); |
1894 | return; | |
1895 | } | |
1896 | ||
1897 | cupsArrayAdd(Listeners, lis); | |
1898 | ||
1899 | memcpy(&lis->address, &addr, sizeof(lis->address)); | |
1900 | } | |
1901 | ||
1902 | lis->fd = fd; | |
1903 | lis->on_demand = 1; | |
1904 | ||
1905 | # ifdef HAVE_SSL | |
1906 | if (httpAddrPort(&(lis->address)) == 443) | |
1907 | lis->encryption = HTTP_ENCRYPT_ALWAYS; | |
1908 | # endif /* HAVE_SSL */ | |
1909 | } | |
03bc3ef4 | 1910 | #endif /* HAVE_ONDEMAND */ |
26c14fa6 | 1911 | |
1166bf58 | 1912 | |
1720786e MS |
1913 | /* |
1914 | * 'service_checkin()' - Check-in with launchd and collect the listening fds. | |
1915 | */ | |
1916 | ||
1917 | static void | |
1918 | service_checkin(void) | |
1919 | { | |
1720786e MS |
1920 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: pid=%d", (int)getpid()); |
1921 | ||
03bc3ef4 MS |
1922 | #ifdef HAVE_LAUNCHD |
1923 | if (OnDemand) | |
1720786e | 1924 | { |
03bc3ef4 MS |
1925 | int error; /* Check-in error, if any */ |
1926 | size_t i, /* Looping var */ | |
1927 | count; /* Number of listeners */ | |
1928 | int *ld_sockets; /* Listener sockets */ | |
1720786e | 1929 | |
2c3b8f53 MS |
1930 | # ifdef __APPLE__ |
1931 | /* | |
1932 | * Force "user initiated" priority for the main thread... | |
1933 | */ | |
1934 | ||
1935 | pthread_set_qos_class_self_np(QOS_CLASS_USER_INITIATED, 0); | |
1936 | # endif /* __APPLE__ */ | |
1937 | ||
03bc3ef4 MS |
1938 | /* |
1939 | * Check-in with launchd... | |
1940 | */ | |
117466cd | 1941 | |
03bc3ef4 MS |
1942 | if ((error = launch_activate_socket("Listeners", &ld_sockets, &count)) != 0) |
1943 | { | |
1944 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to get listener sockets: %s", strerror(error)); | |
1945 | exit(EXIT_FAILURE); | |
1946 | return; /* anti-compiler-warning */ | |
1947 | } | |
1720786e | 1948 | |
03bc3ef4 MS |
1949 | /* |
1950 | * Try to match the launchd sockets to the cupsd listeners... | |
1951 | */ | |
1720786e | 1952 | |
03bc3ef4 | 1953 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: %d listeners.", (int)count); |
1720786e | 1954 | |
03bc3ef4 MS |
1955 | for (i = 0; i < count; i ++) |
1956 | service_add_listener(ld_sockets[i], (int)i); | |
1720786e | 1957 | |
03bc3ef4 | 1958 | free(ld_sockets); |
bbe495b0 MS |
1959 | |
1960 | # ifdef __APPLE__ | |
1961 | xpc_transaction_begin(); | |
1962 | # endif /* __APPLE__ */ | |
1720786e MS |
1963 | } |
1964 | ||
03bc3ef4 MS |
1965 | #elif defined(HAVE_SYSTEMD) |
1966 | if (OnDemand) | |
1967 | { | |
1968 | int i, /* Looping var */ | |
1969 | count; /* Number of listeners */ | |
1720786e | 1970 | |
03bc3ef4 MS |
1971 | /* |
1972 | * Check-in with systemd... | |
1973 | */ | |
1720786e | 1974 | |
03bc3ef4 MS |
1975 | if ((count = sd_listen_fds(0)) < 0) |
1976 | { | |
1977 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to get listener sockets: %s", strerror(-count)); | |
1978 | exit(EXIT_FAILURE); | |
1979 | return; /* anti-compiler-warning */ | |
1980 | } | |
1166bf58 | 1981 | |
03bc3ef4 MS |
1982 | /* |
1983 | * Try to match the systemd sockets to the cupsd listeners... | |
1984 | */ | |
1720786e | 1985 | |
03bc3ef4 | 1986 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: %d listeners.", count); |
1166bf58 | 1987 | |
03bc3ef4 MS |
1988 | for (i = 0; i < count; i ++) |
1989 | service_add_listener(SD_LISTEN_FDS_START + i, i); | |
441de8b2 | 1990 | } |
1720786e | 1991 | |
03bc3ef4 MS |
1992 | #elif defined(HAVE_UPSTART) |
1993 | if (OnDemand) | |
441de8b2 | 1994 | { |
03bc3ef4 MS |
1995 | const char *e; /* Environment var */ |
1996 | int fd; /* File descriptor */ | |
1720786e | 1997 | |
1720786e | 1998 | |
03bc3ef4 MS |
1999 | if (!(e = getenv("UPSTART_EVENTS"))) |
2000 | { | |
2001 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: We did not get started via Upstart."); | |
2002 | exit(EXIT_FAILURE); | |
2003 | return; | |
2004 | } | |
1720786e | 2005 | |
03bc3ef4 MS |
2006 | if (strcasecmp(e, "socket")) |
2007 | { | |
2008 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: We did not get triggered via an Upstart socket event."); | |
2009 | exit(EXIT_FAILURE); | |
2010 | return; | |
2011 | } | |
1720786e | 2012 | |
03bc3ef4 MS |
2013 | if ((e = getenv("UPSTART_FDS")) == NULL) |
2014 | { | |
2015 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to get listener sockets from UPSTART_FDS."); | |
2016 | exit(EXIT_FAILURE); | |
2017 | return; | |
2018 | } | |
1166bf58 | 2019 | |
03bc3ef4 | 2020 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: UPSTART_FDS=%s", e); |
1720786e | 2021 | |
03bc3ef4 MS |
2022 | fd = (int)strtol(e, NULL, 10); |
2023 | if (fd < 0) | |
2024 | { | |
2025 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Could not parse UPSTART_FDS: %s", strerror(errno)); | |
2026 | exit(EXIT_FAILURE); | |
2027 | return; | |
2028 | } | |
2029 | ||
2030 | /* | |
2031 | * Upstart only supportst a single on-demand socket file descriptor... | |
2032 | */ | |
2033 | ||
2034 | service_add_listener(fd, 0); | |
2035 | } | |
2036 | #endif /* HAVE_LAUNCHD */ | |
1720786e MS |
2037 | } |
2038 | ||
2039 | ||
2040 | /* | |
03bc3ef4 | 2041 | * 'service_checkout()' - Update the KeepAlive/PID file as needed. |
1720786e MS |
2042 | */ |
2043 | ||
2044 | static void | |
03bc3ef4 | 2045 | service_checkout(int shutdown) /* I - Shutting down? */ |
1720786e | 2046 | { |
e9b2d701 MS |
2047 | cups_file_t *fp; /* File */ |
2048 | char pidfile[1024]; /* PID/KeepAlive file */ | |
03bc3ef4 MS |
2049 | |
2050 | ||
2051 | /* | |
2052 | * When running on-demand, use the KeepAlive file, otherwise write a PID file | |
2053 | * to StateDir... | |
2054 | */ | |
1720786e | 2055 | |
03bc3ef4 MS |
2056 | #ifdef HAVE_ONDEMAND |
2057 | if (OnDemand) | |
e9b2d701 | 2058 | { |
03bc3ef4 | 2059 | strlcpy(pidfile, CUPS_KEEPALIVE, sizeof(pidfile)); |
e9b2d701 MS |
2060 | |
2061 | if (cupsArrayCount(ActiveJobs) || /* Active jobs */ | |
2062 | WebInterface || /* Web interface enabled */ | |
2063 | NeedReload || /* Doing a reload */ | |
2064 | (Browsing && BrowseLocalProtocols && cupsArrayCount(Printers))) | |
2065 | /* Printers being shared */ | |
2066 | { | |
2067 | /* | |
2068 | * Create or remove the "keep-alive" file based on whether there are active | |
2069 | * jobs or shared printers to advertise... | |
2070 | */ | |
2071 | ||
2072 | shutdown = 0; | |
2073 | } | |
2074 | } | |
03bc3ef4 MS |
2075 | else |
2076 | #endif /* HAVE_ONDEMAND */ | |
2077 | snprintf(pidfile, sizeof(pidfile), "%s/cupsd.pid", StateDir); | |
1720786e | 2078 | |
e9b2d701 MS |
2079 | if (shutdown) |
2080 | { | |
2081 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Removing KeepAlive/PID file \"%s\".", pidfile); | |
1720786e | 2082 | |
e9b2d701 MS |
2083 | unlink(pidfile); |
2084 | } | |
2085 | else | |
1720786e | 2086 | { |
03bc3ef4 | 2087 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Creating KeepAlive/PID file \"%s\".", pidfile); |
1720786e | 2088 | |
03bc3ef4 MS |
2089 | if ((fp = cupsFileOpen(pidfile, "w")) != NULL) |
2090 | { | |
2091 | /* | |
2092 | * Save the PID in the file... | |
2093 | */ | |
2094 | ||
2095 | cupsFilePrintf(fp, "%d\n", (int)getpid()); | |
2096 | cupsFileClose(fp); | |
2097 | } | |
2098 | else | |
2099 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to create KeepAlive/PID file \"%s\": %s", pidfile, strerror(errno)); | |
1720786e | 2100 | } |
bbe495b0 | 2101 | |
bbe495b0 | 2102 | # ifdef __APPLE__ |
5c463d3f | 2103 | if (OnDemand && shutdown) |
bbe495b0 MS |
2104 | xpc_transaction_end(); |
2105 | # endif /* __APPLE__ */ | |
1720786e | 2106 | } |
1720786e MS |
2107 | |
2108 | ||
ef416fc2 | 2109 | /* |
2110 | * 'usage()' - Show scheduler usage. | |
2111 | */ | |
2112 | ||
2113 | static void | |
a4d04587 | 2114 | usage(int status) /* O - Exit status */ |
ef416fc2 | 2115 | { |
0837b7e8 MS |
2116 | FILE *fp = status ? stderr : stdout; /* Output file */ |
2117 | ||
2118 | ||
2119 | _cupsLangPuts(fp, _("Usage: cupsd [options]")); | |
2120 | _cupsLangPuts(fp, _("Options:")); | |
f3c17241 | 2121 | _cupsLangPuts(fp, _(" -c cupsd.conf Set cupsd.conf file to use.")); |
84315f46 | 2122 | _cupsLangPuts(fp, _(" -f Run in the foreground.")); |
3b433010 | 2123 | _cupsLangPuts(fp, _(" -F Run in the foreground but detach from console.")); |
84315f46 | 2124 | _cupsLangPuts(fp, _(" -h Show this usage message.")); |
1166bf58 | 2125 | #ifdef HAVE_ONDEMAND |
1720786e | 2126 | _cupsLangPuts(fp, _(" -l Run cupsd on demand.")); |
1166bf58 | 2127 | #endif /* HAVE_ONDEMAND */ |
3b433010 MS |
2128 | _cupsLangPuts(fp, _(" -s cups-files.conf Set cups-files.conf file to use.")); |
2129 | _cupsLangPuts(fp, _(" -t Test the configuration file.")); | |
0837b7e8 | 2130 | |
a4d04587 | 2131 | exit(status); |
ef416fc2 | 2132 | } |