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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> | |
20 | #endif /* __APPLE__ */ | |
a1797929 MS |
21 | #ifdef HAVE_ASL_H |
22 | # include <asl.h> | |
23 | #elif defined(HAVE_SYSTEMD_SD_JOURNAL_H) | |
24 | # define SD_JOURNAL_SUPPRESS_LOCATION | |
25 | # include <systemd/sd-journal.h> | |
26 | #endif /* HAVE_ASL_H */ | |
ef416fc2 | 27 | #include <syslog.h> |
28 | #include <grp.h> | |
29 | ||
a4d04587 | 30 | #ifdef HAVE_LAUNCH_H |
31 | # include <launch.h> | |
a4d04587 | 32 | #endif /* HAVE_LAUNCH_H */ |
33 | ||
1720786e | 34 | #ifdef HAVE_SYSTEMD |
5950e7bd | 35 | # include <systemd/sd-daemon.h> |
1720786e MS |
36 | #endif /* HAVE_SYSTEMD */ |
37 | ||
441de8b2 BN |
38 | #ifdef HAVE_ONDEMAND |
39 | # define CUPS_KEEPALIVE CUPS_CACHEDIR "/org.cups.cupsd" | |
40 | /* Name of the KeepAlive file */ | |
03bc3ef4 | 41 | #endif /* HAVE_ONDEMAND */ |
441de8b2 | 42 | |
ef416fc2 | 43 | #if defined(HAVE_MALLOC_H) && defined(HAVE_MALLINFO) |
44 | # include <malloc.h> | |
45 | #endif /* HAVE_MALLOC_H && HAVE_MALLINFO */ | |
3dd9c340 | 46 | |
fa73b229 | 47 | #ifdef HAVE_NOTIFY_H |
48 | # include <notify.h> | |
49 | #endif /* HAVE_NOTIFY_H */ | |
ef416fc2 | 50 | |
e7f455a5 MS |
51 | #ifdef HAVE_DBUS |
52 | # include <dbus/dbus.h> | |
53 | #endif /* HAVE_DBUS */ | |
54 | ||
3dd9c340 MS |
55 | #ifdef HAVE_SYS_PARAM_H |
56 | # include <sys/param.h> | |
57 | #endif /* HAVE_SYS_PARAM_H */ | |
58 | ||
ef416fc2 | 59 | |
60 | /* | |
61 | * Local functions... | |
62 | */ | |
63 | ||
411affcf | 64 | static void parent_handler(int sig); |
65 | static void process_children(void); | |
66 | static void sigchld_handler(int sig); | |
67 | static void sighup_handler(int sig); | |
68 | static void sigterm_handler(int sig); | |
69 | static long select_timeout(int fds); | |
1720786e | 70 | static void service_checkin(void); |
03bc3ef4 | 71 | static void service_checkout(int shutdown); |
a32af27c | 72 | static void usage(int status) _CUPS_NORETURN; |
ef416fc2 | 73 | |
74 | ||
75 | /* | |
76 | * Local globals... | |
77 | */ | |
78 | ||
411affcf | 79 | static int parent_signal = 0; |
80 | /* Set to signal number from child */ | |
81 | static int holdcount = 0; /* Number of times "hold" was called */ | |
ef416fc2 | 82 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
411affcf | 83 | static sigset_t holdmask; /* Old POSIX signal mask */ |
ef416fc2 | 84 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ |
411affcf | 85 | static int dead_children = 0; |
86 | /* Dead children? */ | |
87 | static int stop_scheduler = 0; | |
88 | /* Should the scheduler stop? */ | |
e1bb4a6e MS |
89 | static time_t local_timeout = 0; |
90 | /* Next local printer timeout */ | |
411affcf | 91 | |
ef416fc2 | 92 | |
93 | /* | |
94 | * 'main()' - Main entry for the CUPS scheduler. | |
95 | */ | |
96 | ||
97 | int /* O - Exit status */ | |
bd7854cb | 98 | main(int argc, /* I - Number of command-line args */ |
ef416fc2 | 99 | char *argv[]) /* I - Command-line arguments */ |
100 | { | |
101 | int i; /* Looping var */ | |
102 | char *opt; /* Option character */ | |
108f7505 MS |
103 | int close_all = 1, /* Close all file descriptors? */ |
104 | disconnect = 1, /* Disconnect from controlling terminal? */ | |
105 | fg = 0, /* Run in foreground? */ | |
2dd94018 | 106 | run_as_child = 0, |
108f7505 | 107 | /* Running as child process? */ |
2dd94018 MS |
108 | print_profile = 0; |
109 | /* Print the sandbox profile to stdout? */ | |
bd7854cb | 110 | int fds; /* Number of ready descriptors */ |
ef416fc2 | 111 | cupsd_client_t *con; /* Current client */ |
112 | cupsd_job_t *job; /* Current job */ | |
113 | cupsd_listener_t *lis; /* Current listener */ | |
114 | time_t current_time, /* Current time */ | |
a4d04587 | 115 | activity, /* Client activity timer */ |
ef416fc2 | 116 | senddoc_time, /* Send-Document time */ |
411affcf | 117 | expire_time, /* Subscription expire time */ |
50fe7201 | 118 | report_time, /* Malloc/client/job report time */ |
5a662dc0 | 119 | event_time; /* Last event notification time */ |
f7deaa1a | 120 | long timeout; /* Timeout for cupsdDoSelect() */ |
ef416fc2 | 121 | struct rlimit limit; /* Runtime limit */ |
122 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
123 | struct sigaction action; /* Actions for POSIX signals */ | |
124 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
a41f09e2 | 125 | #ifdef __APPLE__ |
1deb86fd | 126 | int use_sysman = 1; /* Use system management functions? */ |
a4924f6c MS |
127 | #else |
128 | time_t netif_time = 0; /* Time since last network update */ | |
a41f09e2 | 129 | #endif /* __APPLE__ */ |
c187d9ab | 130 | #if defined(HAVE_ONDEMAND) |
1720786e | 131 | int service_idle_exit; |
a4d04587 | 132 | /* Idle exit on select timeout? */ |
c187d9ab | 133 | #endif /* HAVE_ONDEMAND */ |
ef416fc2 | 134 | |
135 | ||
db1f069b MS |
136 | #ifdef HAVE_GETEUID |
137 | /* | |
138 | * Check for setuid invocation, which we do not support! | |
139 | */ | |
140 | ||
141 | if (getuid() != geteuid()) | |
142 | { | |
1deb86fd | 143 | fputs("cupsd: Cannot run as a setuid program.\n", stderr); |
db1f069b MS |
144 | return (1); |
145 | } | |
146 | #endif /* HAVE_GETEUID */ | |
147 | ||
ef416fc2 | 148 | /* |
149 | * Check for command-line arguments... | |
150 | */ | |
151 | ||
4400e98d | 152 | fg = 0; |
ef416fc2 | 153 | |
154 | for (i = 1; i < argc; i ++) | |
155 | if (argv[i][0] == '-') | |
156 | for (opt = argv[i] + 1; *opt != '\0'; opt ++) | |
157 | switch (*opt) | |
158 | { | |
a41f09e2 MS |
159 | case 'C' : /* Run as child with config file */ |
160 | run_as_child = 1; | |
108f7505 MS |
161 | fg = 1; |
162 | close_all = 0; | |
a41f09e2 | 163 | |
ef416fc2 | 164 | case 'c' : /* Configuration file */ |
165 | i ++; | |
166 | if (i >= argc) | |
a4d04587 | 167 | { |
168 | _cupsLangPuts(stderr, _("cupsd: Expected config filename " | |
0837b7e8 | 169 | "after \"-c\" option.")); |
a4d04587 | 170 | usage(1); |
171 | } | |
ef416fc2 | 172 | |
173 | if (argv[i][0] == '/') | |
174 | { | |
175 | /* | |
176 | * Absolute directory... | |
177 | */ | |
178 | ||
179 | cupsdSetString(&ConfigurationFile, argv[i]); | |
180 | } | |
181 | else | |
182 | { | |
183 | /* | |
184 | * Relative directory... | |
185 | */ | |
186 | ||
09ec0018 | 187 | char *current; /* Current directory */ |
ef416fc2 | 188 | |
09ec0018 | 189 | /* |
190 | * Allocate a buffer for the current working directory to | |
191 | * reduce run-time stack usage; this approximates the | |
192 | * behavior of some implementations of getcwd() when they | |
193 | * are passed a NULL pointer. | |
194 | */ | |
195 | ||
91c84a35 MS |
196 | if ((current = malloc(1024)) == NULL) |
197 | { | |
198 | _cupsLangPuts(stderr, | |
0837b7e8 | 199 | _("cupsd: Unable to get current directory.")); |
91c84a35 MS |
200 | return (1); |
201 | } | |
202 | ||
203 | if (!getcwd(current, 1024)) | |
204 | { | |
205 | _cupsLangPuts(stderr, | |
0837b7e8 | 206 | _("cupsd: Unable to get current directory.")); |
91c84a35 MS |
207 | free(current); |
208 | return (1); | |
209 | } | |
09ec0018 | 210 | |
ef416fc2 | 211 | cupsdSetStringf(&ConfigurationFile, "%s/%s", current, argv[i]); |
09ec0018 | 212 | free(current); |
ef416fc2 | 213 | } |
214 | break; | |
215 | ||
216 | case 'f' : /* Run in foreground... */ | |
108f7505 MS |
217 | fg = 1; |
218 | disconnect = 0; | |
219 | close_all = 0; | |
ef416fc2 | 220 | break; |
221 | ||
bd7854cb | 222 | case 'F' : /* Run in foreground, but disconnect from terminal... */ |
108f7505 MS |
223 | fg = 1; |
224 | close_all = 0; | |
ef416fc2 | 225 | break; |
226 | ||
a4d04587 | 227 | case 'h' : /* Show usage/help */ |
228 | usage(0); | |
229 | break; | |
230 | ||
441de8b2 | 231 | case 'l' : /* Started by launchd/systemd/upstart... */ |
03bc3ef4 | 232 | #ifdef HAVE_ONDEMAND |
108f7505 MS |
233 | OnDemand = 1; |
234 | fg = 1; | |
235 | close_all = 0; | |
236 | disconnect = 0; | |
a4d04587 | 237 | #else |
1720786e | 238 | _cupsLangPuts(stderr, _("cupsd: On-demand support not compiled " |
0837b7e8 | 239 | "in, running in normal mode.")); |
108f7505 MS |
240 | fg = 0; |
241 | disconnect = 1; | |
242 | close_all = 1; | |
c187d9ab | 243 | #endif /* HAVE_ONDEMAND */ |
a4d04587 | 244 | break; |
245 | ||
a74454a7 | 246 | case 'p' : /* Stop immediately for profiling */ |
5a662dc0 MS |
247 | fputs("cupsd: -p (startup profiling) is for internal testing " |
248 | "use only!\n", stderr); | |
a74454a7 | 249 | stop_scheduler = 1; |
250 | fg = 1; | |
108f7505 MS |
251 | disconnect = 0; |
252 | close_all = 0; | |
a74454a7 | 253 | break; |
254 | ||
1340db2d | 255 | case 'P' : /* Disable security profiles */ |
8fe0183a MS |
256 | fputs("cupsd: -P (disable sandboxing) is for internal testing use only.\n", stderr); |
257 | UseSandboxing = 0; | |
1340db2d MS |
258 | break; |
259 | ||
c41769ff MS |
260 | case 's' : /* Set cups-files.conf location */ |
261 | i ++; | |
262 | if (i >= argc) | |
263 | { | |
264 | _cupsLangPuts(stderr, _("cupsd: Expected cups-files.conf " | |
265 | "filename after \"-s\" option.")); | |
266 | usage(1); | |
267 | } | |
268 | ||
269 | if (argv[i][0] != '/') | |
270 | { | |
271 | /* | |
272 | * Relative filename not allowed... | |
273 | */ | |
274 | ||
275 | _cupsLangPuts(stderr, _("cupsd: Relative cups-files.conf " | |
276 | "filename not allowed.")); | |
277 | usage(1); | |
278 | } | |
279 | ||
280 | cupsdSetString(&CupsFilesFile, argv[i]); | |
281 | break; | |
282 | ||
68b10830 MS |
283 | #ifdef __APPLE__ |
284 | case 'S' : /* Disable system management functions */ | |
5a662dc0 MS |
285 | fputs("cupsd: -S (disable system management) for internal " |
286 | "testing use only!\n", stderr); | |
68b10830 MS |
287 | use_sysman = 0; |
288 | break; | |
289 | #endif /* __APPLE__ */ | |
290 | ||
2e4ff8af MS |
291 | case 't' : /* Test the cupsd.conf file... */ |
292 | TestConfigFile = 1; | |
293 | fg = 1; | |
108f7505 MS |
294 | disconnect = 0; |
295 | close_all = 0; | |
2e4ff8af MS |
296 | break; |
297 | ||
2dd94018 MS |
298 | case 'T' : /* Print security profile */ |
299 | print_profile = 1; | |
300 | fg = 1; | |
301 | disconnect = 0; | |
302 | close_all = 0; | |
303 | break; | |
304 | ||
ef416fc2 | 305 | default : /* Unknown option */ |
a4d04587 | 306 | _cupsLangPrintf(stderr, _("cupsd: Unknown option \"%c\" - " |
0837b7e8 | 307 | "aborting."), *opt); |
a4d04587 | 308 | usage(1); |
ef416fc2 | 309 | break; |
310 | } | |
311 | else | |
312 | { | |
0837b7e8 | 313 | _cupsLangPrintf(stderr, _("cupsd: Unknown argument \"%s\" - aborting."), |
a4d04587 | 314 | argv[i]); |
315 | usage(1); | |
ef416fc2 | 316 | } |
317 | ||
318 | if (!ConfigurationFile) | |
319 | cupsdSetString(&ConfigurationFile, CUPS_SERVERROOT "/cupsd.conf"); | |
320 | ||
cb7f98ee MS |
321 | if (!CupsFilesFile) |
322 | { | |
323 | char *filename, /* Copy of cupsd.conf filename */ | |
324 | *slash; /* Final slash in cupsd.conf filename */ | |
325 | size_t len; /* Size of buffer */ | |
326 | ||
327 | len = strlen(ConfigurationFile) + 15; | |
328 | if ((filename = malloc(len)) == NULL) | |
329 | { | |
330 | _cupsLangPrintf(stderr, | |
331 | _("cupsd: Unable to get path to " | |
332 | "cups-files.conf file.")); | |
333 | return (1); | |
334 | } | |
335 | ||
336 | strlcpy(filename, ConfigurationFile, len); | |
337 | if ((slash = strrchr(filename, '/')) == NULL) | |
338 | { | |
339 | _cupsLangPrintf(stderr, | |
340 | _("cupsd: Unable to get path to " | |
341 | "cups-files.conf file.")); | |
342 | return (1); | |
343 | } | |
344 | ||
7e86f2f6 | 345 | strlcpy(slash, "/cups-files.conf", len - (size_t)(slash - filename)); |
cb7f98ee MS |
346 | cupsdSetString(&CupsFilesFile, filename); |
347 | free(filename); | |
348 | } | |
349 | ||
108f7505 MS |
350 | if (disconnect) |
351 | { | |
352 | /* | |
353 | * Make sure we aren't tying up any filesystems... | |
354 | */ | |
355 | ||
356 | chdir("/"); | |
357 | ||
358 | /* | |
359 | * Disconnect from the controlling terminal... | |
360 | */ | |
361 | ||
362 | setsid(); | |
363 | } | |
364 | ||
365 | if (close_all) | |
366 | { | |
367 | /* | |
368 | * Close all open files... | |
369 | */ | |
370 | ||
371 | getrlimit(RLIMIT_NOFILE, &limit); | |
372 | ||
373 | for (i = 0; i < (int)limit.rlim_cur && i < 1024; i ++) | |
374 | close(i); | |
375 | ||
376 | /* | |
377 | * Redirect stdin/out/err to /dev/null... | |
378 | */ | |
379 | ||
380 | if ((i = open("/dev/null", O_RDONLY)) != 0) | |
381 | { | |
382 | dup2(i, 0); | |
383 | close(i); | |
384 | } | |
385 | ||
386 | if ((i = open("/dev/null", O_WRONLY)) != 1) | |
387 | { | |
388 | dup2(i, 1); | |
389 | close(i); | |
390 | } | |
391 | ||
392 | if ((i = open("/dev/null", O_WRONLY)) != 2) | |
393 | { | |
394 | dup2(i, 2); | |
395 | close(i); | |
396 | } | |
397 | } | |
a1797929 MS |
398 | else |
399 | LogStderr = cupsFileStderr(); | |
108f7505 | 400 | |
ef416fc2 | 401 | /* |
108f7505 | 402 | * Run in the background as needed... |
ef416fc2 | 403 | */ |
404 | ||
405 | if (!fg) | |
406 | { | |
407 | /* | |
408 | * Setup signal handlers for the parent... | |
409 | */ | |
410 | ||
411 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
412 | sigset(SIGUSR1, parent_handler); | |
413 | sigset(SIGCHLD, parent_handler); | |
414 | ||
415 | sigset(SIGHUP, SIG_IGN); | |
416 | #elif defined(HAVE_SIGACTION) | |
417 | memset(&action, 0, sizeof(action)); | |
418 | sigemptyset(&action.sa_mask); | |
419 | sigaddset(&action.sa_mask, SIGUSR1); | |
420 | action.sa_handler = parent_handler; | |
421 | sigaction(SIGUSR1, &action, NULL); | |
422 | sigaction(SIGCHLD, &action, NULL); | |
423 | ||
424 | sigemptyset(&action.sa_mask); | |
425 | action.sa_handler = SIG_IGN; | |
426 | sigaction(SIGHUP, &action, NULL); | |
427 | #else | |
428 | signal(SIGUSR1, parent_handler); | |
429 | signal(SIGCLD, parent_handler); | |
430 | ||
431 | signal(SIGHUP, SIG_IGN); | |
432 | #endif /* HAVE_SIGSET */ | |
433 | ||
434 | if (fork() > 0) | |
435 | { | |
436 | /* | |
437 | * OK, wait for the child to startup and send us SIGUSR1 or to crash | |
438 | * and the OS send us SIGCHLD... We also need to ignore SIGHUP which | |
439 | * might be sent by the init script to restart the scheduler... | |
440 | */ | |
441 | ||
442 | for (; parent_signal == 0;) | |
443 | sleep(1); | |
444 | ||
445 | if (parent_signal == SIGUSR1) | |
446 | return (0); | |
447 | ||
448 | if (wait(&i) < 0) | |
449 | { | |
450 | perror("cupsd"); | |
451 | return (1); | |
452 | } | |
453 | else if (WIFEXITED(i)) | |
454 | { | |
4d301e69 | 455 | fprintf(stderr, "cupsd: Child exited with status %d\n", |
bd7854cb | 456 | WEXITSTATUS(i)); |
ef416fc2 | 457 | return (2); |
458 | } | |
459 | else | |
460 | { | |
4d301e69 | 461 | fprintf(stderr, "cupsd: Child exited on signal %d\n", WTERMSIG(i)); |
ef416fc2 | 462 | return (3); |
463 | } | |
464 | } | |
a41f09e2 | 465 | |
3dd9c340 | 466 | #if defined(__OpenBSD__) && OpenBSD < 201211 |
68b10830 MS |
467 | /* |
468 | * Call _thread_sys_closefrom() so the child process doesn't reset the | |
469 | * parent's file descriptors to be blocking. This is a workaround for a | |
3dd9c340 | 470 | * limitation of userland libpthread on older versions of OpenBSD. |
68b10830 | 471 | */ |
ef55b745 | 472 | |
68b10830 | 473 | _thread_sys_closefrom(0); |
3dd9c340 | 474 | #endif /* __OpenBSD__ && OpenBSD < 201211 */ |
68b10830 | 475 | |
a41f09e2 | 476 | /* |
108f7505 MS |
477 | * Since many system libraries create fork-unsafe data on execution of a |
478 | * program, we need to re-execute the background cupsd with the "-C" and "-s" | |
479 | * options to avoid problems. Unfortunately, we also have to assume that | |
480 | * argv[0] contains the name of the cupsd executable - there is no portable | |
481 | * way to get the real pathname... | |
a41f09e2 MS |
482 | */ |
483 | ||
108f7505 | 484 | execlp(argv[0], argv[0], "-C", ConfigurationFile, "-s", CupsFilesFile, (char *)0); |
a41f09e2 | 485 | exit(errno); |
ef416fc2 | 486 | } |
487 | ||
e4e37194 MS |
488 | /* |
489 | * Let the system know we are busy while we bring up cupsd... | |
490 | */ | |
491 | ||
492 | cupsdSetBusyState(1); | |
493 | ||
ef416fc2 | 494 | /* |
495 | * Set the timezone info... | |
496 | */ | |
497 | ||
498 | tzset(); | |
499 | ||
500 | #ifdef LC_TIME | |
501 | setlocale(LC_TIME, ""); | |
502 | #endif /* LC_TIME */ | |
503 | ||
0cf0c416 MS |
504 | #ifdef HAVE_DBUS_THREADS_INIT |
505 | /* | |
506 | * Enable threading support for D-BUS... | |
507 | */ | |
508 | ||
e7f455a5 | 509 | dbus_threads_init_default(); |
0cf0c416 MS |
510 | #endif /* HAVE_DBUS_THREADS_INIT */ |
511 | ||
ef416fc2 | 512 | /* |
513 | * Set the maximum number of files... | |
514 | */ | |
515 | ||
516 | getrlimit(RLIMIT_NOFILE, &limit); | |
517 | ||
f7deaa1a | 518 | #if !defined(HAVE_POLL) && !defined(HAVE_EPOLL) && !defined(HAVE_KQUEUE) |
f7faf1f5 | 519 | if (limit.rlim_max > FD_SETSIZE) |
520 | MaxFDs = FD_SETSIZE; | |
ef416fc2 | 521 | else |
f7deaa1a | 522 | #endif /* !HAVE_POLL && !HAVE_EPOLL && !HAVE_KQUEUE */ |
523 | #ifdef RLIM_INFINITY | |
524 | if (limit.rlim_max == RLIM_INFINITY) | |
525 | MaxFDs = 16384; | |
526 | else | |
527 | #endif /* RLIM_INFINITY */ | |
ef416fc2 | 528 | MaxFDs = limit.rlim_max; |
529 | ||
7e86f2f6 | 530 | limit.rlim_cur = (rlim_t)MaxFDs; |
ef416fc2 | 531 | |
532 | setrlimit(RLIMIT_NOFILE, &limit); | |
533 | ||
f7deaa1a | 534 | cupsdStartSelect(); |
ef416fc2 | 535 | |
536 | /* | |
537 | * Read configuration... | |
538 | */ | |
539 | ||
540 | if (!cupsdReadConfiguration()) | |
ef416fc2 | 541 | return (1); |
2e4ff8af MS |
542 | else if (TestConfigFile) |
543 | { | |
cb7f98ee MS |
544 | printf("\"%s\" is OK.\n", CupsFilesFile); |
545 | printf("\"%s\" is OK.\n", ConfigurationFile); | |
2e4ff8af MS |
546 | return (0); |
547 | } | |
2dd94018 MS |
548 | else if (print_profile) |
549 | { | |
550 | cups_file_t *fp; /* File pointer */ | |
551 | const char *profile = cupsdCreateProfile(42, 0); | |
552 | /* Profile */ | |
553 | char line[1024]; /* Line from file */ | |
554 | ||
555 | ||
556 | if ((fp = cupsFileOpen(profile, "r")) == NULL) | |
557 | { | |
558 | printf("Unable to open profile file \"%s\": %s\n", profile ? profile : "(null)", strerror(errno)); | |
559 | return (1); | |
560 | } | |
561 | ||
562 | while (cupsFileGets(fp, line, sizeof(line))) | |
563 | puts(line); | |
564 | ||
565 | cupsFileClose(fp); | |
566 | ||
567 | return (0); | |
568 | } | |
ef416fc2 | 569 | |
ba55dc12 MS |
570 | /* |
571 | * Clean out old temp files and printer cache data. | |
572 | */ | |
cc0d019f | 573 | |
ba55dc12 | 574 | if (!strncmp(TempDir, RequestRoot, strlen(RequestRoot))) |
321d8d57 | 575 | cupsdCleanFiles(TempDir, NULL); |
cc0d019f | 576 | |
321d8d57 | 577 | cupsdCleanFiles(CacheDir, "*.ipp"); |
cc0d019f | 578 | |
03bc3ef4 MS |
579 | /* |
580 | * If we were started on demand by launchd or systemd get the listen sockets | |
581 | * file descriptors... | |
582 | */ | |
a4d04587 | 583 | |
03bc3ef4 MS |
584 | service_checkin(); |
585 | service_checkout(0); | |
a4d04587 | 586 | |
587 | /* | |
588 | * Startup the server... | |
589 | */ | |
590 | ||
6d2f911b MS |
591 | httpInitialize(); |
592 | ||
a4d04587 | 593 | cupsdStartServer(); |
594 | ||
ef416fc2 | 595 | /* |
596 | * Catch hangup and child signals and ignore broken pipes... | |
597 | */ | |
598 | ||
599 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
e1d6a774 | 600 | sigset(SIGCHLD, sigchld_handler); |
4744bd90 | 601 | sigset(SIGHUP, sighup_handler); |
ef416fc2 | 602 | sigset(SIGPIPE, SIG_IGN); |
603 | sigset(SIGTERM, sigterm_handler); | |
604 | #elif defined(HAVE_SIGACTION) | |
605 | memset(&action, 0, sizeof(action)); | |
606 | ||
e1d6a774 | 607 | sigemptyset(&action.sa_mask); |
608 | sigaddset(&action.sa_mask, SIGTERM); | |
609 | sigaddset(&action.sa_mask, SIGCHLD); | |
610 | action.sa_handler = sigchld_handler; | |
611 | sigaction(SIGCHLD, &action, NULL); | |
612 | ||
ef416fc2 | 613 | sigemptyset(&action.sa_mask); |
614 | sigaddset(&action.sa_mask, SIGHUP); | |
4744bd90 | 615 | action.sa_handler = sighup_handler; |
ef416fc2 | 616 | sigaction(SIGHUP, &action, NULL); |
617 | ||
618 | sigemptyset(&action.sa_mask); | |
619 | action.sa_handler = SIG_IGN; | |
620 | sigaction(SIGPIPE, &action, NULL); | |
621 | ||
622 | sigemptyset(&action.sa_mask); | |
623 | sigaddset(&action.sa_mask, SIGTERM); | |
624 | sigaddset(&action.sa_mask, SIGCHLD); | |
625 | action.sa_handler = sigterm_handler; | |
626 | sigaction(SIGTERM, &action, NULL); | |
627 | #else | |
e1d6a774 | 628 | signal(SIGCLD, sigchld_handler); /* No, SIGCLD isn't a typo... */ |
4744bd90 | 629 | signal(SIGHUP, sighup_handler); |
ef416fc2 | 630 | signal(SIGPIPE, SIG_IGN); |
631 | signal(SIGTERM, sigterm_handler); | |
632 | #endif /* HAVE_SIGSET */ | |
633 | ||
ef416fc2 | 634 | /* |
635 | * Initialize authentication certificates... | |
636 | */ | |
637 | ||
638 | cupsdInitCerts(); | |
639 | ||
640 | /* | |
641 | * If we are running in the background, signal the parent process that | |
642 | * we are up and running... | |
643 | */ | |
644 | ||
a41f09e2 | 645 | if (!fg || run_as_child) |
ef416fc2 | 646 | { |
647 | /* | |
648 | * Send a signal to the parent process, but only if the parent is | |
649 | * not PID 1 (init). This avoids accidentally shutting down the | |
650 | * system on OpenBSD if you CTRL-C the server before it is up... | |
651 | */ | |
652 | ||
653 | i = getppid(); /* Save parent PID to avoid race condition */ | |
654 | ||
655 | if (i != 1) | |
656 | kill(i, SIGUSR1); | |
657 | } | |
658 | ||
e1d6a774 | 659 | #ifdef __APPLE__ |
09ec0018 | 660 | /* |
661 | * Start power management framework... | |
662 | */ | |
663 | ||
1340db2d MS |
664 | if (use_sysman) |
665 | cupsdStartSystemMonitor(); | |
e1d6a774 | 666 | #endif /* __APPLE__ */ |
ef416fc2 | 667 | |
49d87452 MS |
668 | /* |
669 | * Send server-started event... | |
670 | */ | |
671 | ||
03bc3ef4 | 672 | #ifdef HAVE_ONDEMAND |
1720786e MS |
673 | if (OnDemand) |
674 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, "Scheduler started on demand."); | |
49d87452 | 675 | else |
c187d9ab | 676 | #endif /* HAVE_ONDEMAND */ |
49d87452 | 677 | if (fg) |
1720786e | 678 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, "Scheduler started in foreground."); |
49d87452 | 679 | else |
1720786e | 680 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, "Scheduler started in background."); |
49d87452 | 681 | |
e4e37194 MS |
682 | cupsdSetBusyState(0); |
683 | ||
ef416fc2 | 684 | /* |
685 | * Start any pending print jobs... | |
686 | */ | |
687 | ||
688 | cupsdCheckJobs(); | |
689 | ||
690 | /* | |
691 | * Loop forever... | |
692 | */ | |
693 | ||
50fe7201 | 694 | current_time = time(NULL); |
50fe7201 MS |
695 | event_time = current_time; |
696 | expire_time = current_time; | |
123cfe02 | 697 | local_timeout = 0; |
ef416fc2 | 698 | fds = 1; |
5bd77a73 | 699 | report_time = 0; |
50fe7201 | 700 | senddoc_time = current_time; |
ef416fc2 | 701 | |
702 | while (!stop_scheduler) | |
703 | { | |
ef416fc2 | 704 | /* |
705 | * Check if there are dead children to handle... | |
706 | */ | |
707 | ||
708 | if (dead_children) | |
709 | process_children(); | |
710 | ||
711 | /* | |
712 | * Check if we need to load the server configuration file... | |
713 | */ | |
714 | ||
715 | if (NeedReload) | |
716 | { | |
717 | /* | |
718 | * Close any idle clients... | |
719 | */ | |
720 | ||
bd7854cb | 721 | if (cupsArrayCount(Clients) > 0) |
ef416fc2 | 722 | { |
bd7854cb | 723 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
724 | con; | |
725 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
996acce8 | 726 | if (httpGetState(con->http) == HTTP_WAITING) |
ef416fc2 | 727 | cupsdCloseClient(con); |
ef416fc2 | 728 | else |
996acce8 | 729 | con->http->keep_alive = HTTP_KEEPALIVE_OFF; |
ef416fc2 | 730 | |
731 | cupsdPauseListening(); | |
732 | } | |
733 | ||
ef416fc2 | 734 | /* |
735 | * Restart if all clients are closed and all jobs finished, or | |
736 | * if the reload timeout has elapsed... | |
737 | */ | |
738 | ||
bd7854cb | 739 | if ((cupsArrayCount(Clients) == 0 && |
238c3832 | 740 | (cupsArrayCount(PrintingJobs) == 0 || NeedReload != RELOAD_ALL)) || |
ef416fc2 | 741 | (time(NULL) - ReloadTime) >= ReloadTimeout) |
742 | { | |
a4d04587 | 743 | /* |
744 | * Shutdown the server... | |
745 | */ | |
746 | ||
1166bf58 | 747 | #ifdef HAVE_ONDEMAND |
83d8789d MS |
748 | if (OnDemand) |
749 | break; | |
1166bf58 | 750 | #endif /* HAVE_ONDEMAND */ |
83d8789d | 751 | |
7cf5915e MS |
752 | DoingShutdown = 1; |
753 | ||
a4d04587 | 754 | cupsdStopServer(); |
755 | ||
756 | /* | |
757 | * Read configuration... | |
758 | */ | |
759 | ||
ef416fc2 | 760 | if (!cupsdReadConfiguration()) |
761 | { | |
250bb8a9 | 762 | #ifdef HAVE_SYSTEMD_SD_JOURNAL_H |
a1797929 MS |
763 | sd_journal_print(LOG_ERR, "Unable to read configuration file \"%s\" - exiting.", ConfigurationFile); |
764 | #else | |
765 | syslog(LOG_LPR, "Unable to read configuration file \'%s\' - exiting.", ConfigurationFile); | |
250bb8a9 | 766 | #endif /* HAVE_SYSTEMD_SD_JOURNAL_H */ |
a1797929 | 767 | |
ef416fc2 | 768 | break; |
769 | } | |
a4d04587 | 770 | |
a4d04587 | 771 | /* |
772 | * Startup the server... | |
773 | */ | |
774 | ||
7cf5915e MS |
775 | DoingShutdown = 0; |
776 | ||
a4d04587 | 777 | cupsdStartServer(); |
49d87452 MS |
778 | |
779 | /* | |
780 | * Send a server-restarted event... | |
781 | */ | |
782 | ||
783 | cupsdAddEvent(CUPSD_EVENT_SERVER_RESTARTED, NULL, NULL, | |
784 | "Scheduler restarted."); | |
ef416fc2 | 785 | } |
786 | } | |
787 | ||
788 | /* | |
f7deaa1a | 789 | * Check for available input or ready output. If cupsdDoSelect() |
790 | * returns 0 or -1, something bad happened and we should exit | |
791 | * immediately. | |
ef416fc2 | 792 | * |
793 | * Note that we at least have one listening socket open at all | |
794 | * times. | |
795 | */ | |
796 | ||
50fe7201 MS |
797 | if ((timeout = select_timeout(fds)) > 1 && LastEvent) |
798 | timeout = 1; | |
ef416fc2 | 799 | |
1166bf58 | 800 | #ifdef HAVE_ONDEMAND |
a4d04587 | 801 | /* |
9fc5c8d4 MS |
802 | * If no other work is scheduled and we're being controlled by launchd, |
803 | * systemd, etc. then timeout after 'IdleExitTimeout' seconds of | |
a4d04587 | 804 | * inactivity... |
805 | */ | |
806 | ||
1720786e | 807 | if (timeout == 86400 && OnDemand && IdleExitTimeout && |
0627e869 MS |
808 | # ifdef HAVE_SYSTEMD |
809 | !WebInterface && | |
810 | # endif /* HAVE_SYSTEMD */ | |
9fc5c8d4 | 811 | !cupsArrayCount(ActiveJobs)) |
a4d04587 | 812 | { |
9fc5c8d4 MS |
813 | cupsd_printer_t *p = NULL; /* Current printer */ |
814 | ||
815 | if (Browsing && BrowseLocalProtocols) | |
816 | { | |
817 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); p; p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
818 | if (p->shared) | |
819 | break; | |
820 | } | |
821 | ||
822 | if (!p) | |
823 | { | |
824 | timeout = IdleExitTimeout; | |
825 | service_idle_exit = 1; | |
826 | } | |
a4d04587 | 827 | } |
828 | else | |
1720786e | 829 | service_idle_exit = 0; |
c187d9ab | 830 | #endif /* HAVE_ONDEMAND */ |
a4d04587 | 831 | |
f7deaa1a | 832 | if ((fds = cupsdDoSelect(timeout)) < 0) |
ef416fc2 | 833 | { |
ef416fc2 | 834 | /* |
835 | * Got an error from select! | |
836 | */ | |
837 | ||
37e7e6e0 | 838 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
f7deaa1a | 839 | cupsd_printer_t *p; /* Current printer */ |
37e7e6e0 | 840 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
f7deaa1a | 841 | |
f7deaa1a | 842 | if (errno == EINTR) /* Just interrupted by a signal */ |
ef416fc2 | 843 | continue; |
844 | ||
845 | /* | |
846 | * Log all sorts of debug info to help track down the problem. | |
847 | */ | |
848 | ||
f7deaa1a | 849 | cupsdLogMessage(CUPSD_LOG_EMERG, "cupsdDoSelect() failed - %s!", |
ef416fc2 | 850 | strerror(errno)); |
851 | ||
bd7854cb | 852 | for (i = 0, con = (cupsd_client_t *)cupsArrayFirst(Clients); |
853 | con; | |
854 | i ++, con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 855 | cupsdLogMessage(CUPSD_LOG_EMERG, |
856 | "Clients[%d] = %d, file = %d, state = %d", | |
996acce8 | 857 | i, con->number, con->file, httpGetState(con->http)); |
ef416fc2 | 858 | |
bd7854cb | 859 | for (i = 0, lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); |
860 | lis; | |
861 | i ++, lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
ef416fc2 | 862 | cupsdLogMessage(CUPSD_LOG_EMERG, "Listeners[%d] = %d", i, lis->fd); |
863 | ||
923edb68 | 864 | cupsdLogMessage(CUPSD_LOG_EMERG, "CGIPipes[0] = %d", CGIPipes[0]); |
865 | ||
09ec0018 | 866 | #ifdef __APPLE__ |
867 | cupsdLogMessage(CUPSD_LOG_EMERG, "SysEventPipes[0] = %d", | |
868 | SysEventPipes[0]); | |
869 | #endif /* __APPLE__ */ | |
870 | ||
ef416fc2 | 871 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); |
872 | job; | |
873 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
874 | cupsdLogMessage(CUPSD_LOG_EMERG, "Jobs[%d] = %d < [%d %d] > [%d %d]", | |
875 | job->id, | |
876 | job->status_buffer ? job->status_buffer->fd : -1, | |
877 | job->print_pipes[0], job->print_pipes[1], | |
878 | job->back_pipes[0], job->back_pipes[1]); | |
f7deaa1a | 879 | |
37e7e6e0 | 880 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
f7deaa1a | 881 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); |
882 | p; | |
883 | p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
7a14d768 MS |
884 | cupsdLogMessage(CUPSD_LOG_EMERG, "printer[%s] reg_name=\"%s\"", p->name, |
885 | p->reg_name ? p->reg_name : "(null)"); | |
37e7e6e0 | 886 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
f7deaa1a | 887 | |
ef416fc2 | 888 | break; |
889 | } | |
890 | ||
891 | current_time = time(NULL); | |
892 | ||
3dfe78b3 MS |
893 | /* |
894 | * Write dirty config/state files... | |
895 | */ | |
896 | ||
eb2cb9b0 | 897 | if (DirtyCleanTime && current_time >= DirtyCleanTime) |
3dfe78b3 | 898 | cupsdCleanDirty(); |
3dfe78b3 | 899 | |
e6013cfa MS |
900 | #ifdef __APPLE__ |
901 | /* | |
902 | * If we are going to sleep and still have pending jobs, stop them after | |
903 | * a period of time... | |
904 | */ | |
905 | ||
906 | if (SleepJobs > 0 && current_time >= SleepJobs && | |
907 | cupsArrayCount(PrintingJobs) > 0) | |
908 | { | |
909 | SleepJobs = 0; | |
e60ec91f | 910 | cupsdStopAllJobs(CUPSD_JOB_DEFAULT, 5); |
e6013cfa MS |
911 | } |
912 | #endif /* __APPLE__ */ | |
913 | ||
a4924f6c MS |
914 | #ifndef __APPLE__ |
915 | /* | |
916 | * Update the network interfaces once a minute... | |
917 | */ | |
918 | ||
919 | if ((current_time - netif_time) >= 60) | |
920 | { | |
921 | netif_time = current_time; | |
922 | NetIFUpdate = 1; | |
923 | } | |
924 | #endif /* !__APPLE__ */ | |
925 | ||
1166bf58 | 926 | #ifdef HAVE_ONDEMAND |
a4d04587 | 927 | /* |
1166bf58 MS |
928 | * If no other work was scheduled and we're being controlled by launchd, |
929 | * systemd, or upstart then timeout after 'LaunchdTimeout' seconds of | |
930 | * inactivity... | |
a4d04587 | 931 | */ |
932 | ||
1720786e | 933 | if (!fds && service_idle_exit) |
a4d04587 | 934 | { |
935 | cupsdLogMessage(CUPSD_LOG_INFO, | |
936 | "Printer sharing is off and there are no jobs pending, " | |
937 | "will restart on demand."); | |
938 | stop_scheduler = 1; | |
939 | break; | |
940 | } | |
c187d9ab | 941 | #endif /* HAVE_ONDEMAND */ |
a4d04587 | 942 | |
76cd9e37 MS |
943 | /* |
944 | * Resume listening for new connections as needed... | |
945 | */ | |
946 | ||
947 | if (ListeningPaused && ListeningPaused <= current_time && | |
948 | cupsArrayCount(Clients) < MaxClients) | |
949 | cupsdResumeListening(); | |
950 | ||
ef416fc2 | 951 | /* |
bd7854cb | 952 | * Expire subscriptions and unload completed jobs as needed... |
ef416fc2 | 953 | */ |
954 | ||
bd7854cb | 955 | if (current_time > expire_time) |
ef416fc2 | 956 | { |
bd7854cb | 957 | if (cupsArrayCount(Subscriptions) > 0) |
958 | cupsdExpireSubscriptions(NULL, NULL); | |
959 | ||
960 | cupsdUnloadCompletedJobs(); | |
ef416fc2 | 961 | |
962 | expire_time = current_time; | |
963 | } | |
964 | ||
e1bb4a6e MS |
965 | /* |
966 | * Delete stale local printers... | |
967 | */ | |
968 | ||
969 | if (current_time >= local_timeout) | |
123cfe02 | 970 | { |
e1bb4a6e | 971 | cupsdDeleteTemporaryPrinters(0); |
123cfe02 MS |
972 | local_timeout = 0; |
973 | } | |
e1bb4a6e | 974 | |
07ed0e9a | 975 | #ifndef HAVE_AUTHORIZATION_H |
ef416fc2 | 976 | /* |
f7deaa1a | 977 | * Update the root certificate once every 5 minutes if we have client |
978 | * connections... | |
ef416fc2 | 979 | */ |
980 | ||
f7deaa1a | 981 | if ((current_time - RootCertTime) >= RootCertDuration && RootCertDuration && |
982 | !RunUser && cupsArrayCount(Clients)) | |
983 | { | |
984 | /* | |
985 | * Update the root certificate... | |
986 | */ | |
987 | ||
988 | cupsdDeleteCert(0); | |
0fa6c7fa | 989 | cupsdAddCert(0, "root", cupsdDefaultAuthType()); |
f7deaa1a | 990 | } |
07ed0e9a | 991 | #endif /* !HAVE_AUTHORIZATION_H */ |
ef416fc2 | 992 | |
993 | /* | |
994 | * Check for new data on the client sockets... | |
995 | */ | |
996 | ||
bd7854cb | 997 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
998 | con; | |
999 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 1000 | { |
1001 | /* | |
f7deaa1a | 1002 | * Process pending data in the input buffer... |
ef416fc2 | 1003 | */ |
1004 | ||
1720786e | 1005 | if (httpGetReady(con->http)) |
ef416fc2 | 1006 | { |
f7deaa1a | 1007 | cupsdReadClient(con); |
1008 | continue; | |
ef416fc2 | 1009 | } |
1010 | ||
1011 | /* | |
1012 | * Check the activity and close old clients... | |
1013 | */ | |
1014 | ||
1015 | activity = current_time - Timeout; | |
1720786e | 1016 | if (httpGetActivity(con->http) < activity && !con->pipe_pid) |
ef416fc2 | 1017 | { |
1720786e | 1018 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Closing client %d after %d seconds of inactivity.", con->number, Timeout); |
ef416fc2 | 1019 | |
1020 | cupsdCloseClient(con); | |
ef416fc2 | 1021 | continue; |
1022 | } | |
1023 | } | |
1024 | ||
1025 | /* | |
1026 | * Update any pending multi-file documents... | |
1027 | */ | |
1028 | ||
1029 | if ((current_time - senddoc_time) >= 10) | |
1030 | { | |
1031 | cupsdCheckJobs(); | |
1032 | senddoc_time = current_time; | |
1033 | } | |
1034 | ||
82cc1f9a MS |
1035 | /* |
1036 | * Clean job history... | |
1037 | */ | |
1038 | ||
1039 | if (JobHistoryUpdate && current_time >= JobHistoryUpdate) | |
1040 | cupsdCleanJobs(); | |
1041 | ||
ef416fc2 | 1042 | /* |
5bd77a73 | 1043 | * Log statistics at most once a minute when in debug mode... |
ef416fc2 | 1044 | */ |
1045 | ||
5bd77a73 | 1046 | if ((current_time - report_time) >= 60 && LogLevel >= CUPSD_LOG_DEBUG) |
ef416fc2 | 1047 | { |
5bd77a73 MS |
1048 | size_t string_count, /* String count */ |
1049 | alloc_bytes, /* Allocated string bytes */ | |
1050 | total_bytes; /* Total string bytes */ | |
4400e98d | 1051 | #ifdef HAVE_MALLINFO |
5bd77a73 | 1052 | struct mallinfo mem; /* Malloc information */ |
ef416fc2 | 1053 | |
1054 | ||
1055 | mem = mallinfo(); | |
5bd77a73 MS |
1056 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-arena=%lu", mem.arena); |
1057 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-used=%lu", | |
1058 | mem.usmblks + mem.uordblks); | |
1059 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-free=%lu", | |
ef416fc2 | 1060 | mem.fsmblks + mem.fordblks); |
4400e98d | 1061 | #endif /* HAVE_MALLINFO */ |
1062 | ||
5bd77a73 MS |
1063 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: clients=%d", |
1064 | cupsArrayCount(Clients)); | |
1065 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: jobs=%d", | |
1066 | cupsArrayCount(Jobs)); | |
1067 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: jobs-active=%d", | |
1068 | cupsArrayCount(ActiveJobs)); | |
1069 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: printers=%d", | |
1070 | cupsArrayCount(Printers)); | |
5bd77a73 | 1071 | |
757d2cad | 1072 | string_count = _cupsStrStatistics(&alloc_bytes, &total_bytes); |
5bd77a73 MS |
1073 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
1074 | "Report: stringpool-string-count=" CUPS_LLFMT, | |
1075 | CUPS_LLCAST string_count); | |
1076 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1077 | "Report: stringpool-alloc-bytes=" CUPS_LLFMT, | |
1078 | CUPS_LLCAST alloc_bytes); | |
1079 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1080 | "Report: stringpool-total-bytes=" CUPS_LLFMT, | |
4400e98d | 1081 | CUPS_LLCAST total_bytes); |
1082 | ||
5bd77a73 | 1083 | report_time = current_time; |
ef416fc2 | 1084 | } |
ef416fc2 | 1085 | |
fa73b229 | 1086 | /* |
1087 | * Handle OS-specific event notification for any events that have | |
1088 | * accumulated. Don't send these more than once a second... | |
1089 | */ | |
1090 | ||
50fe7201 | 1091 | if (LastEvent && (current_time - event_time) >= 1) |
fa73b229 | 1092 | { |
1093 | #ifdef HAVE_NOTIFY_POST | |
a41f09e2 MS |
1094 | if (LastEvent & (CUPSD_EVENT_PRINTER_ADDED | |
1095 | CUPSD_EVENT_PRINTER_DELETED | | |
1096 | CUPSD_EVENT_PRINTER_MODIFIED)) | |
fa73b229 | 1097 | { |
e00b005a | 1098 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1099 | "notify_post(\"com.apple.printerListChange\")"); |
1100 | notify_post("com.apple.printerListChange"); | |
1101 | } | |
1102 | ||
1103 | if (LastEvent & CUPSD_EVENT_PRINTER_STATE_CHANGED) | |
1104 | { | |
e00b005a | 1105 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1106 | "notify_post(\"com.apple.printerHistoryChange\")"); |
1107 | notify_post("com.apple.printerHistoryChange"); | |
1108 | } | |
1109 | ||
1110 | if (LastEvent & (CUPSD_EVENT_JOB_STATE_CHANGED | | |
1111 | CUPSD_EVENT_JOB_CONFIG_CHANGED | | |
1112 | CUPSD_EVENT_JOB_PROGRESS)) | |
1113 | { | |
e00b005a | 1114 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1115 | "notify_post(\"com.apple.jobChange\")"); |
1116 | notify_post("com.apple.jobChange"); | |
1117 | } | |
1118 | #endif /* HAVE_NOTIFY_POST */ | |
1119 | ||
1120 | /* | |
e53920b9 | 1121 | * Reset the accumulated events... |
fa73b229 | 1122 | */ |
1123 | ||
50fe7201 MS |
1124 | LastEvent = CUPSD_EVENT_NONE; |
1125 | event_time = current_time; | |
fa73b229 | 1126 | } |
ef416fc2 | 1127 | } |
1128 | ||
1129 | /* | |
1130 | * Log a message based on what happened... | |
1131 | */ | |
1132 | ||
1133 | if (stop_scheduler) | |
49d87452 | 1134 | { |
ef416fc2 | 1135 | cupsdLogMessage(CUPSD_LOG_INFO, "Scheduler shutting down normally."); |
49d87452 MS |
1136 | cupsdAddEvent(CUPSD_EVENT_SERVER_STOPPED, NULL, NULL, |
1137 | "Scheduler shutting down normally."); | |
1138 | } | |
ef416fc2 | 1139 | else |
49d87452 | 1140 | { |
ef416fc2 | 1141 | cupsdLogMessage(CUPSD_LOG_ERROR, |
1142 | "Scheduler shutting down due to program error."); | |
49d87452 MS |
1143 | cupsdAddEvent(CUPSD_EVENT_SERVER_STOPPED, NULL, NULL, |
1144 | "Scheduler shutting down due to program error."); | |
1145 | } | |
ef416fc2 | 1146 | |
1147 | /* | |
7ff4fea9 | 1148 | * Close all network clients... |
ef416fc2 | 1149 | */ |
1150 | ||
7cf5915e MS |
1151 | DoingShutdown = 1; |
1152 | ||
ef416fc2 | 1153 | cupsdStopServer(); |
1154 | ||
7ff4fea9 | 1155 | /* |
03bc3ef4 | 1156 | * Update the KeepAlive/PID file as needed... |
7ff4fea9 MS |
1157 | */ |
1158 | ||
03bc3ef4 | 1159 | service_checkout(1); |
7ff4fea9 MS |
1160 | |
1161 | /* | |
1162 | * Stop all jobs... | |
1163 | */ | |
1164 | ||
bd7854cb | 1165 | cupsdFreeAllJobs(); |
ef416fc2 | 1166 | |
b4974142 MS |
1167 | /* |
1168 | * Delete all temporary printers... | |
1169 | */ | |
1170 | ||
1171 | cupsdDeleteTemporaryPrinters(1); | |
1172 | ||
e1d6a774 | 1173 | #ifdef __APPLE__ |
7ff4fea9 MS |
1174 | /* |
1175 | * Stop monitoring system event monitoring... | |
1176 | */ | |
1177 | ||
1340db2d MS |
1178 | if (use_sysman) |
1179 | cupsdStopSystemMonitor(); | |
e1d6a774 | 1180 | #endif /* __APPLE__ */ |
09ec0018 | 1181 | |
f7deaa1a | 1182 | cupsdStopSelect(); |
ef416fc2 | 1183 | |
1184 | return (!stop_scheduler); | |
1185 | } | |
1186 | ||
1187 | ||
10d09e33 MS |
1188 | /* |
1189 | * 'cupsdAddString()' - Copy and add a string to an array. | |
1190 | */ | |
1191 | ||
1192 | int /* O - 1 on success, 0 on failure */ | |
1193 | cupsdAddString(cups_array_t **a, /* IO - String array */ | |
1194 | const char *s) /* I - String to copy and add */ | |
1195 | { | |
1196 | if (!*a) | |
1197 | *a = cupsArrayNew3((cups_array_func_t)strcmp, NULL, | |
1198 | (cups_ahash_func_t)NULL, 0, | |
5e6c3df7 MS |
1199 | (cups_acopy_func_t)strdup, |
1200 | (cups_afree_func_t)free); | |
10d09e33 MS |
1201 | |
1202 | return (cupsArrayAdd(*a, (char *)s)); | |
1203 | } | |
1204 | ||
1205 | ||
d7871c8c MS |
1206 | /* |
1207 | * 'cupsdCheckProcess()' - Tell the main loop to check for dead children. | |
1208 | */ | |
1209 | ||
1210 | void | |
1211 | cupsdCheckProcess(void) | |
1212 | { | |
1213 | /* | |
1214 | * Flag that we have dead children... | |
1215 | */ | |
1216 | ||
1217 | dead_children = 1; | |
1218 | } | |
1219 | ||
1220 | ||
10d09e33 MS |
1221 | /* |
1222 | * 'cupsdClearString()' - Clear a string. | |
1223 | */ | |
1224 | ||
1225 | void | |
1226 | cupsdClearString(char **s) /* O - String value */ | |
1227 | { | |
1228 | if (s && *s) | |
1229 | { | |
5e6c3df7 | 1230 | free(*s); |
10d09e33 MS |
1231 | *s = NULL; |
1232 | } | |
1233 | } | |
1234 | ||
1235 | ||
10d09e33 MS |
1236 | /* |
1237 | * 'cupsdFreeStrings()' - Free an array of strings. | |
1238 | */ | |
1239 | ||
1240 | void | |
1241 | cupsdFreeStrings(cups_array_t **a) /* IO - String array */ | |
1242 | { | |
1243 | if (*a) | |
1244 | { | |
1245 | cupsArrayDelete(*a); | |
1246 | *a = NULL; | |
1247 | } | |
1248 | } | |
1249 | ||
1250 | ||
1251 | /* | |
1252 | * 'cupsdHoldSignals()' - Hold child and termination signals. | |
1253 | */ | |
1254 | ||
1255 | void | |
1256 | cupsdHoldSignals(void) | |
1257 | { | |
1258 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
1259 | sigset_t newmask; /* New POSIX signal mask */ | |
1260 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
1261 | ||
1262 | ||
1263 | holdcount ++; | |
1264 | if (holdcount > 1) | |
1265 | return; | |
1266 | ||
1267 | #ifdef HAVE_SIGSET | |
1268 | sighold(SIGTERM); | |
1269 | sighold(SIGCHLD); | |
1270 | #elif defined(HAVE_SIGACTION) | |
1271 | sigemptyset(&newmask); | |
1272 | sigaddset(&newmask, SIGTERM); | |
1273 | sigaddset(&newmask, SIGCHLD); | |
1274 | sigprocmask(SIG_BLOCK, &newmask, &holdmask); | |
1275 | #endif /* HAVE_SIGSET */ | |
1276 | } | |
1277 | ||
1278 | ||
ef416fc2 | 1279 | /* |
1280 | * 'cupsdReleaseSignals()' - Release signals for delivery. | |
1281 | */ | |
1282 | ||
1283 | void | |
1284 | cupsdReleaseSignals(void) | |
1285 | { | |
1286 | holdcount --; | |
1287 | if (holdcount > 0) | |
1288 | return; | |
1289 | ||
1290 | #ifdef HAVE_SIGSET | |
1291 | sigrelse(SIGTERM); | |
1292 | sigrelse(SIGCHLD); | |
1293 | #elif defined(HAVE_SIGACTION) | |
1294 | sigprocmask(SIG_SETMASK, &holdmask, NULL); | |
1295 | #endif /* HAVE_SIGSET */ | |
1296 | } | |
1297 | ||
1298 | ||
1299 | /* | |
1300 | * 'cupsdSetString()' - Set a string value. | |
1301 | */ | |
1302 | ||
1303 | void | |
1304 | cupsdSetString(char **s, /* O - New string */ | |
1305 | const char *v) /* I - String value */ | |
1306 | { | |
1307 | if (!s || *s == v) | |
1308 | return; | |
1309 | ||
1310 | if (*s) | |
5e6c3df7 | 1311 | free(*s); |
ef416fc2 | 1312 | |
1313 | if (v) | |
5e6c3df7 | 1314 | *s = strdup(v); |
ef416fc2 | 1315 | else |
1316 | *s = NULL; | |
1317 | } | |
1318 | ||
1319 | ||
1320 | /* | |
1321 | * 'cupsdSetStringf()' - Set a formatted string value. | |
1322 | */ | |
1323 | ||
1324 | void | |
1325 | cupsdSetStringf(char **s, /* O - New string */ | |
1326 | const char *f, /* I - Printf-style format string */ | |
1327 | ...) /* I - Additional args as needed */ | |
1328 | { | |
94436c5a | 1329 | char v[65536 + 64]; /* Formatting string value */ |
ef416fc2 | 1330 | va_list ap; /* Argument pointer */ |
1331 | char *olds; /* Old string */ | |
1332 | ||
1333 | ||
1334 | if (!s) | |
1335 | return; | |
1336 | ||
1337 | olds = *s; | |
1338 | ||
1339 | if (f) | |
1340 | { | |
1341 | va_start(ap, f); | |
1342 | vsnprintf(v, sizeof(v), f, ap); | |
1343 | va_end(ap); | |
1344 | ||
5e6c3df7 | 1345 | *s = strdup(v); |
ef416fc2 | 1346 | } |
1347 | else | |
1348 | *s = NULL; | |
1349 | ||
1350 | if (olds) | |
5e6c3df7 | 1351 | free(olds); |
ef416fc2 | 1352 | } |
1353 | ||
1354 | ||
1355 | /* | |
1356 | * 'parent_handler()' - Catch USR1/CHLD signals... | |
1357 | */ | |
1358 | ||
1359 | static void | |
1360 | parent_handler(int sig) /* I - Signal */ | |
1361 | { | |
1362 | /* | |
1363 | * Store the signal we got from the OS and return... | |
1364 | */ | |
1365 | ||
1366 | parent_signal = sig; | |
1367 | } | |
1368 | ||
1369 | ||
1370 | /* | |
1371 | * 'process_children()' - Process all dead children... | |
1372 | */ | |
1373 | ||
1374 | static void | |
1375 | process_children(void) | |
1376 | { | |
1377 | int status; /* Exit status of child */ | |
b9faaae1 MS |
1378 | int pid, /* Process ID of child */ |
1379 | job_id; /* Job ID of child */ | |
ef416fc2 | 1380 | cupsd_job_t *job; /* Current job */ |
1381 | int i; /* Looping var */ | |
e00b005a | 1382 | char name[1024]; /* Process name */ |
dcb445bc | 1383 | const char *type; /* Type of program */ |
ef416fc2 | 1384 | |
1385 | ||
1386 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "process_children()"); | |
1387 | ||
1388 | /* | |
1389 | * Reset the dead_children flag... | |
1390 | */ | |
1391 | ||
1392 | dead_children = 0; | |
1393 | ||
1394 | /* | |
1395 | * Collect the exit status of some children... | |
1396 | */ | |
1397 | ||
1398 | #ifdef HAVE_WAITPID | |
1399 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) | |
1400 | #elif defined(HAVE_WAIT3) | |
1401 | while ((pid = wait3(&status, WNOHANG, NULL)) > 0) | |
1402 | #else | |
1403 | if ((pid = wait(&status)) > 0) | |
1404 | #endif /* HAVE_WAITPID */ | |
1405 | { | |
ef416fc2 | 1406 | /* |
745129be | 1407 | * Collect the name of the process that finished... |
ef416fc2 | 1408 | */ |
1409 | ||
b9faaae1 | 1410 | cupsdFinishProcess(pid, name, sizeof(name), &job_id); |
e00b005a | 1411 | |
ef416fc2 | 1412 | /* |
1413 | * Delete certificates for CGI processes... | |
1414 | */ | |
1415 | ||
1416 | if (pid) | |
1417 | cupsdDeleteCert(pid); | |
1418 | ||
1419 | /* | |
b9faaae1 | 1420 | * Handle completed job filters... |
ef416fc2 | 1421 | */ |
1422 | ||
dcb445bc MS |
1423 | if (job_id > 0) |
1424 | job = cupsdFindJob(job_id); | |
1425 | else | |
1426 | job = NULL; | |
1427 | ||
1428 | if (job) | |
b9faaae1 MS |
1429 | { |
1430 | for (i = 0; job->filters[i]; i ++) | |
1431 | if (job->filters[i] == pid) | |
1432 | break; | |
1433 | ||
1434 | if (job->filters[i] || job->backend == pid) | |
ef416fc2 | 1435 | { |
b9faaae1 MS |
1436 | /* |
1437 | * OK, this process has gone away; what's left? | |
1438 | */ | |
1439 | ||
1440 | if (job->filters[i]) | |
dcb445bc | 1441 | { |
b9faaae1 | 1442 | job->filters[i] = -pid; |
dcb445bc MS |
1443 | type = "Filter"; |
1444 | } | |
b9faaae1 | 1445 | else |
dcb445bc | 1446 | { |
b9faaae1 | 1447 | job->backend = -pid; |
dcb445bc MS |
1448 | type = "Backend"; |
1449 | } | |
ef416fc2 | 1450 | |
b9faaae1 | 1451 | if (status && status != SIGTERM && status != SIGKILL && |
f3c17241 | 1452 | status != SIGPIPE) |
ef416fc2 | 1453 | { |
1454 | /* | |
b9faaae1 MS |
1455 | * An error occurred; save the exit status so we know to stop |
1456 | * the printer or cancel the job when all of the filters finish... | |
1457 | * | |
1458 | * A negative status indicates that the backend failed and the | |
1459 | * printer needs to be stopped. | |
f3c17241 MS |
1460 | * |
1461 | * In order to preserve the most serious status, we always log | |
1462 | * when a process dies due to a signal (e.g. SIGABRT, SIGSEGV, | |
1463 | * and SIGBUS) and prefer to log the backend exit status over a | |
1464 | * filter's. | |
ef416fc2 | 1465 | */ |
1466 | ||
f3c17241 MS |
1467 | int old_status = abs(job->status); |
1468 | ||
1469 | if (WIFSIGNALED(status) || /* This process crashed, or */ | |
1470 | !job->status || /* No process had a status, or */ | |
1471 | (!job->filters[i] && WIFEXITED(old_status))) | |
1472 | { /* Backend and filter didn't crash */ | |
1473 | if (job->filters[i]) | |
1474 | job->status = status; /* Filter failed */ | |
1475 | else | |
1476 | job->status = -status; /* Backend failed */ | |
1477 | } | |
ef416fc2 | 1478 | |
f11a948a | 1479 | if (job->state_value == IPP_JOB_PROCESSING && |
dcb445bc MS |
1480 | job->status_level > CUPSD_LOG_ERROR && |
1481 | (job->filters[i] || !WIFEXITED(status))) | |
ef416fc2 | 1482 | { |
f11a948a MS |
1483 | char message[1024]; /* New printer-state-message */ |
1484 | ||
1485 | ||
b9faaae1 | 1486 | job->status_level = CUPSD_LOG_ERROR; |
ef416fc2 | 1487 | |
dcb445bc | 1488 | snprintf(message, sizeof(message), "%s failed", type); |
f11a948a | 1489 | |
e07d4801 MS |
1490 | if (job->printer) |
1491 | { | |
f11a948a MS |
1492 | strlcpy(job->printer->state_message, message, |
1493 | sizeof(job->printer->state_message)); | |
e07d4801 MS |
1494 | } |
1495 | ||
1496 | if (!job->attrs) | |
1497 | cupsdLoadJob(job); | |
e00b005a | 1498 | |
e07d4801 | 1499 | if (!job->printer_message && job->attrs) |
e00b005a | 1500 | { |
b9faaae1 MS |
1501 | if ((job->printer_message = |
1502 | ippFindAttribute(job->attrs, "job-printer-state-message", | |
1503 | IPP_TAG_TEXT)) == NULL) | |
1504 | job->printer_message = ippAddString(job->attrs, IPP_TAG_JOB, | |
1505 | IPP_TAG_TEXT, | |
1506 | "job-printer-state-message", | |
5a662dc0 | 1507 | NULL, NULL); |
e00b005a | 1508 | } |
b9faaae1 | 1509 | |
e07d4801 | 1510 | if (job->printer_message) |
5e6c3df7 | 1511 | ippSetString(job->attrs, &job->printer_message, 0, message); |
ef416fc2 | 1512 | } |
b9faaae1 | 1513 | } |
ef416fc2 | 1514 | |
b9faaae1 MS |
1515 | /* |
1516 | * If this is not the last file in a job, see if all of the | |
1517 | * filters are done, and if so move to the next file. | |
1518 | */ | |
ef416fc2 | 1519 | |
5a4c3fcf MS |
1520 | if (job->state_value >= IPP_JOB_CANCELED) |
1521 | { | |
1522 | /* | |
1523 | * Remove the job from the active list if there are no processes still | |
1524 | * running for it... | |
1525 | */ | |
1526 | ||
1527 | for (i = 0; job->filters[i] < 0; i++); | |
1528 | ||
1529 | if (!job->filters[i] && job->backend <= 0) | |
1530 | cupsArrayRemove(ActiveJobs, job); | |
1531 | } | |
1532 | else if (job->current_file < job->num_files && job->printer) | |
b9faaae1 MS |
1533 | { |
1534 | for (i = 0; job->filters[i] < 0; i ++); | |
ef416fc2 | 1535 | |
82f97232 MS |
1536 | if (!job->filters[i] && |
1537 | (!job->printer->pc || !job->printer->pc->single_file || | |
1538 | job->backend <= 0)) | |
b9faaae1 MS |
1539 | { |
1540 | /* | |
1541 | * Process the next file... | |
1542 | */ | |
ef416fc2 | 1543 | |
b9faaae1 | 1544 | cupsdContinueJob(job); |
ef416fc2 | 1545 | } |
ef416fc2 | 1546 | } |
1547 | } | |
b9faaae1 | 1548 | } |
3dfe78b3 MS |
1549 | |
1550 | /* | |
745129be MS |
1551 | * Show the exit status as needed, ignoring SIGTERM and SIGKILL errors |
1552 | * since they come when we kill/end a process... | |
3dfe78b3 MS |
1553 | */ |
1554 | ||
745129be MS |
1555 | if (status == SIGTERM || status == SIGKILL) |
1556 | { | |
dcb445bc MS |
1557 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1558 | "PID %d (%s) was terminated normally with signal %d.", pid, | |
1559 | name, status); | |
745129be | 1560 | } |
5a6b583a MS |
1561 | else if (status == SIGPIPE) |
1562 | { | |
dcb445bc MS |
1563 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1564 | "PID %d (%s) did not catch or ignore signal %d.", pid, name, | |
1565 | status); | |
5a6b583a | 1566 | } |
745129be | 1567 | else if (status) |
3dfe78b3 MS |
1568 | { |
1569 | if (WIFEXITED(status)) | |
88f9aafc MS |
1570 | { |
1571 | int code = WEXITSTATUS(status); /* Exit code */ | |
1572 | ||
1573 | if (code > 100) | |
dcb445bc MS |
1574 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1575 | "PID %d (%s) stopped with status %d (%s)", pid, name, | |
1576 | code, strerror(code - 100)); | |
88f9aafc | 1577 | else |
dcb445bc MS |
1578 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1579 | "PID %d (%s) stopped with status %d.", pid, name, code); | |
88f9aafc | 1580 | } |
3dfe78b3 | 1581 | else |
dcb445bc MS |
1582 | cupsdLogJob(job, CUPSD_LOG_DEBUG, "PID %d (%s) crashed on signal %d.", |
1583 | pid, name, WTERMSIG(status)); | |
3dfe78b3 MS |
1584 | |
1585 | if (LogLevel < CUPSD_LOG_DEBUG) | |
dcb445bc MS |
1586 | cupsdLogJob(job, CUPSD_LOG_INFO, |
1587 | "Hint: Try setting the LogLevel to \"debug\" to find out " | |
1588 | "more."); | |
3dfe78b3 MS |
1589 | } |
1590 | else | |
dcb445bc MS |
1591 | cupsdLogJob(job, CUPSD_LOG_DEBUG, "PID %d (%s) exited with no errors.", |
1592 | pid, name); | |
ef416fc2 | 1593 | } |
dfd5680b MS |
1594 | |
1595 | /* | |
1596 | * If wait*() is interrupted by a signal, tell main() to call us again... | |
1597 | */ | |
1598 | ||
1599 | if (pid < 0 && errno == EINTR) | |
1600 | dead_children = 1; | |
ef416fc2 | 1601 | } |
1602 | ||
1603 | ||
ef416fc2 | 1604 | /* |
1605 | * 'select_timeout()' - Calculate the select timeout value. | |
1606 | * | |
1607 | */ | |
1608 | ||
1609 | static long /* O - Number of seconds */ | |
bd7854cb | 1610 | select_timeout(int fds) /* I - Number of descriptors returned */ |
ef416fc2 | 1611 | { |
ef416fc2 | 1612 | long timeout; /* Timeout for select */ |
1613 | time_t now; /* Current time */ | |
1614 | cupsd_client_t *con; /* Client information */ | |
ef416fc2 | 1615 | cupsd_job_t *job; /* Job information */ |
e1bb4a6e | 1616 | cupsd_printer_t *printer; /* Printer information */ |
ef416fc2 | 1617 | const char *why; /* Debugging aid */ |
1618 | ||
1619 | ||
82cc1f9a MS |
1620 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout: JobHistoryUpdate=%ld", |
1621 | (long)JobHistoryUpdate); | |
1622 | ||
ef416fc2 | 1623 | /* |
1624 | * Check to see if any of the clients have pending data to be | |
1625 | * processed; if so, the timeout should be 0... | |
1626 | */ | |
1627 | ||
bd7854cb | 1628 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
1629 | con; | |
1630 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
1720786e | 1631 | if (httpGetReady(con->http)) |
ef416fc2 | 1632 | return (0); |
1633 | ||
1634 | /* | |
f7deaa1a | 1635 | * If select has been active in the last second (fds > 0) or we have |
ef416fc2 | 1636 | * many resources in use then don't bother trying to optimize the |
1637 | * timeout, just make it 1 second. | |
1638 | */ | |
1639 | ||
f7deaa1a | 1640 | if (fds > 0 || cupsArrayCount(Clients) > 50) |
ef416fc2 | 1641 | return (1); |
1642 | ||
1643 | /* | |
1644 | * Otherwise, check all of the possible events that we need to wake for... | |
1645 | */ | |
1646 | ||
1647 | now = time(NULL); | |
1648 | timeout = now + 86400; /* 86400 == 1 day */ | |
1649 | why = "do nothing"; | |
1650 | ||
e6013cfa MS |
1651 | #ifdef __APPLE__ |
1652 | /* | |
b4974142 | 1653 | * When going to sleep, wake up to abort jobs that don't complete in time. |
e6013cfa MS |
1654 | */ |
1655 | ||
1656 | if (SleepJobs > 0 && SleepJobs < timeout) | |
1657 | { | |
1658 | timeout = SleepJobs; | |
b4974142 | 1659 | why = "abort jobs before sleeping"; |
e6013cfa MS |
1660 | } |
1661 | #endif /* __APPLE__ */ | |
1662 | ||
76cd9e37 MS |
1663 | /* |
1664 | * Check whether we are accepting new connections... | |
1665 | */ | |
1666 | ||
1667 | if (ListeningPaused > 0 && cupsArrayCount(Clients) < MaxClients && | |
1668 | ListeningPaused < timeout) | |
1669 | { | |
1670 | if (ListeningPaused <= now) | |
1671 | timeout = now; | |
1672 | else | |
1673 | timeout = ListeningPaused; | |
1674 | ||
1675 | why = "resume listening"; | |
1676 | } | |
1677 | ||
ef416fc2 | 1678 | /* |
1679 | * Check the activity and close old clients... | |
1680 | */ | |
1681 | ||
bd7854cb | 1682 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
1683 | con; | |
1684 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
1720786e | 1685 | if ((httpGetActivity(con->http) + Timeout) < timeout) |
ef416fc2 | 1686 | { |
1720786e | 1687 | timeout = httpGetActivity(con->http) + Timeout; |
ef416fc2 | 1688 | why = "timeout a client connection"; |
1689 | } | |
1690 | ||
3dfe78b3 | 1691 | /* |
bf3816c7 | 1692 | * Write out changes to configuration and state files... |
3dfe78b3 MS |
1693 | */ |
1694 | ||
1695 | if (DirtyCleanTime && timeout > DirtyCleanTime) | |
1696 | { | |
1697 | timeout = DirtyCleanTime; | |
1698 | why = "write dirty config/state files"; | |
1699 | } | |
1700 | ||
ef416fc2 | 1701 | /* |
82cc1f9a | 1702 | * Check for any job activity... |
ef416fc2 | 1703 | */ |
1704 | ||
82cc1f9a MS |
1705 | if (JobHistoryUpdate && timeout > JobHistoryUpdate) |
1706 | { | |
1707 | timeout = JobHistoryUpdate; | |
1708 | why = "update job history"; | |
1709 | } | |
1710 | ||
238c3832 MS |
1711 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); |
1712 | job; | |
1713 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
ef416fc2 | 1714 | { |
82cc1f9a MS |
1715 | if (job->cancel_time && job->cancel_time < timeout) |
1716 | { | |
1717 | timeout = job->cancel_time; | |
1718 | why = "cancel stuck jobs"; | |
1719 | } | |
1720 | ||
238c3832 MS |
1721 | if (job->kill_time && job->kill_time < timeout) |
1722 | { | |
1723 | timeout = job->kill_time; | |
1724 | why = "kill unresponsive jobs"; | |
1725 | } | |
82cc1f9a MS |
1726 | |
1727 | if (job->state_value == IPP_JOB_HELD && job->hold_until < timeout) | |
238c3832 MS |
1728 | { |
1729 | timeout = job->hold_until; | |
1730 | why = "release held jobs"; | |
1731 | } | |
82cc1f9a MS |
1732 | |
1733 | if (job->state_value == IPP_JOB_PENDING && timeout > (now + 10)) | |
238c3832 MS |
1734 | { |
1735 | timeout = now + 10; | |
1736 | why = "start pending jobs"; | |
1737 | break; | |
1738 | } | |
ef416fc2 | 1739 | } |
1740 | ||
e1bb4a6e MS |
1741 | /* |
1742 | * Check for temporary printers that need to be deleted... | |
1743 | */ | |
1744 | ||
1745 | for (printer = (cupsd_printer_t *)cupsArrayFirst(Printers); printer; printer = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
1746 | { | |
123cfe02 | 1747 | if (printer->temporary && !printer->job && (!local_timeout || local_timeout > (printer->state_time + 60))) |
e1bb4a6e MS |
1748 | local_timeout = printer->state_time + 60; |
1749 | } | |
1750 | ||
123cfe02 | 1751 | if (timeout > local_timeout && local_timeout) |
e1bb4a6e MS |
1752 | { |
1753 | timeout = local_timeout; | |
1754 | why = "delete stale local printers"; | |
1755 | } | |
1756 | ||
ef416fc2 | 1757 | /* |
dcb445bc MS |
1758 | * Adjust from absolute to relative time. We add 1 second to the timeout since |
1759 | * events occur after the timeout expires, and limit the timeout to 86400 | |
1760 | * seconds (1 day) to avoid select() timeout limits present on some operating | |
ef416fc2 | 1761 | * systems... |
1762 | */ | |
1763 | ||
1764 | timeout = timeout - now + 1; | |
1765 | ||
1766 | if (timeout < 1) | |
1767 | timeout = 1; | |
1768 | else if (timeout > 86400) | |
1769 | timeout = 86400; | |
1770 | ||
1771 | /* | |
1772 | * Log and return the timeout value... | |
1773 | */ | |
1774 | ||
f7deaa1a | 1775 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout(%d): %ld seconds to %s", |
1776 | fds, timeout, why); | |
ef416fc2 | 1777 | |
1778 | return (timeout); | |
1779 | } | |
1780 | ||
1781 | ||
e6013cfa MS |
1782 | /* |
1783 | * 'sigchld_handler()' - Handle 'child' signals from old processes. | |
1784 | */ | |
1785 | ||
1786 | static void | |
1787 | sigchld_handler(int sig) /* I - Signal number */ | |
1788 | { | |
1789 | (void)sig; | |
1790 | ||
1791 | /* | |
1792 | * Flag that we have dead children... | |
1793 | */ | |
1794 | ||
1795 | dead_children = 1; | |
1796 | ||
1797 | /* | |
1798 | * Reset the signal handler as needed... | |
1799 | */ | |
1800 | ||
1801 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
1802 | signal(SIGCLD, sigchld_handler); | |
1803 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
1804 | } | |
1805 | ||
1806 | ||
1807 | /* | |
1808 | * 'sighup_handler()' - Handle 'hangup' signals to reconfigure the scheduler. | |
1809 | */ | |
1810 | ||
1811 | static void | |
1812 | sighup_handler(int sig) /* I - Signal number */ | |
1813 | { | |
1814 | (void)sig; | |
1815 | ||
1816 | NeedReload = RELOAD_ALL; | |
1817 | ReloadTime = time(NULL); | |
1818 | ||
1819 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
1820 | signal(SIGHUP, sighup_handler); | |
1821 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
1822 | } | |
1823 | ||
1824 | ||
1825 | /* | |
1826 | * 'sigterm_handler()' - Handle 'terminate' signals that stop the scheduler. | |
1827 | */ | |
1828 | ||
1829 | static void | |
1830 | sigterm_handler(int sig) /* I - Signal number */ | |
1831 | { | |
1832 | (void)sig; /* remove compiler warnings... */ | |
1833 | ||
1834 | /* | |
1835 | * Flag that we should stop and return... | |
1836 | */ | |
1837 | ||
1838 | stop_scheduler = 1; | |
1839 | } | |
1840 | ||
1841 | ||
1166bf58 | 1842 | #ifdef HAVE_ONDEMAND |
26c14fa6 | 1843 | /* |
1166bf58 | 1844 | * 'service_add_listener()' - Bind an open fd as a Listener. |
26c14fa6 BN |
1845 | */ |
1846 | ||
1847 | static void | |
1166bf58 MS |
1848 | service_add_listener(int fd, /* I - Socket file descriptor */ |
1849 | int idx) /* I - Listener number, for logging */ | |
26c14fa6 BN |
1850 | { |
1851 | cupsd_listener_t *lis; /* Listeners array */ | |
1852 | http_addr_t addr; /* Address variable */ | |
1853 | socklen_t addrlen; /* Length of address */ | |
1854 | char s[256]; /* String addresss */ | |
1855 | ||
1166bf58 | 1856 | |
26c14fa6 BN |
1857 | addrlen = sizeof(addr); |
1858 | ||
1859 | if (getsockname(fd, (struct sockaddr *)&addr, &addrlen)) | |
1860 | { | |
1166bf58 | 1861 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_add_listener: Unable to get local address for listener #%d: %s", idx + 1, strerror(errno)); |
26c14fa6 BN |
1862 | return; |
1863 | } | |
1864 | ||
1166bf58 | 1865 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_add_listener: Listener #%d at fd %d, \"%s\".", idx + 1, fd, httpAddrString(&addr, s, sizeof(s))); |
26c14fa6 | 1866 | |
1166bf58 MS |
1867 | /* |
1868 | * Try to match the on-demand socket address to one of the listeners... | |
1869 | */ | |
26c14fa6 BN |
1870 | |
1871 | for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); | |
1872 | lis; | |
1873 | lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
1874 | if (httpAddrEqual(&lis->address, &addr)) | |
1875 | break; | |
1876 | ||
1877 | /* | |
1878 | * Add a new listener If there's no match... | |
1879 | */ | |
1880 | ||
1881 | if (lis) | |
1882 | { | |
1166bf58 | 1883 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_add_listener: Matched existing listener #%d to %s.", idx + 1, httpAddrString(&(lis->address), s, sizeof(s))); |
26c14fa6 BN |
1884 | } |
1885 | else | |
1886 | { | |
1166bf58 | 1887 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_add_listener: Adding new listener #%d for %s.", idx + 1, httpAddrString(&addr, s, sizeof(s))); |
26c14fa6 BN |
1888 | |
1889 | if ((lis = calloc(1, sizeof(cupsd_listener_t))) == NULL) | |
1890 | { | |
1166bf58 | 1891 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_add_listener: Unable to allocate listener: %s.", strerror(errno)); |
26c14fa6 BN |
1892 | exit(EXIT_FAILURE); |
1893 | return; | |
1894 | } | |
1895 | ||
1896 | cupsArrayAdd(Listeners, lis); | |
1897 | ||
1898 | memcpy(&lis->address, &addr, sizeof(lis->address)); | |
1899 | } | |
1900 | ||
1901 | lis->fd = fd; | |
1902 | lis->on_demand = 1; | |
1903 | ||
1904 | # ifdef HAVE_SSL | |
1905 | if (httpAddrPort(&(lis->address)) == 443) | |
1906 | lis->encryption = HTTP_ENCRYPT_ALWAYS; | |
1907 | # endif /* HAVE_SSL */ | |
1908 | } | |
03bc3ef4 | 1909 | #endif /* HAVE_ONDEMAND */ |
26c14fa6 | 1910 | |
1166bf58 | 1911 | |
1720786e MS |
1912 | /* |
1913 | * 'service_checkin()' - Check-in with launchd and collect the listening fds. | |
1914 | */ | |
1915 | ||
1916 | static void | |
1917 | service_checkin(void) | |
1918 | { | |
1720786e MS |
1919 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: pid=%d", (int)getpid()); |
1920 | ||
03bc3ef4 MS |
1921 | #ifdef HAVE_LAUNCHD |
1922 | if (OnDemand) | |
1720786e | 1923 | { |
03bc3ef4 MS |
1924 | int error; /* Check-in error, if any */ |
1925 | size_t i, /* Looping var */ | |
1926 | count; /* Number of listeners */ | |
1927 | int *ld_sockets; /* Listener sockets */ | |
1720786e | 1928 | |
03bc3ef4 MS |
1929 | /* |
1930 | * Check-in with launchd... | |
1931 | */ | |
117466cd | 1932 | |
03bc3ef4 MS |
1933 | if ((error = launch_activate_socket("Listeners", &ld_sockets, &count)) != 0) |
1934 | { | |
1935 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to get listener sockets: %s", strerror(error)); | |
1936 | exit(EXIT_FAILURE); | |
1937 | return; /* anti-compiler-warning */ | |
1938 | } | |
1720786e | 1939 | |
03bc3ef4 MS |
1940 | /* |
1941 | * Try to match the launchd sockets to the cupsd listeners... | |
1942 | */ | |
1720786e | 1943 | |
03bc3ef4 | 1944 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: %d listeners.", (int)count); |
1720786e | 1945 | |
03bc3ef4 MS |
1946 | for (i = 0; i < count; i ++) |
1947 | service_add_listener(ld_sockets[i], (int)i); | |
1720786e | 1948 | |
03bc3ef4 | 1949 | free(ld_sockets); |
bbe495b0 MS |
1950 | |
1951 | # ifdef __APPLE__ | |
1952 | xpc_transaction_begin(); | |
1953 | # endif /* __APPLE__ */ | |
1720786e MS |
1954 | } |
1955 | ||
03bc3ef4 MS |
1956 | #elif defined(HAVE_SYSTEMD) |
1957 | if (OnDemand) | |
1958 | { | |
1959 | int i, /* Looping var */ | |
1960 | count; /* Number of listeners */ | |
1720786e | 1961 | |
03bc3ef4 MS |
1962 | /* |
1963 | * Check-in with systemd... | |
1964 | */ | |
1720786e | 1965 | |
03bc3ef4 MS |
1966 | if ((count = sd_listen_fds(0)) < 0) |
1967 | { | |
1968 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to get listener sockets: %s", strerror(-count)); | |
1969 | exit(EXIT_FAILURE); | |
1970 | return; /* anti-compiler-warning */ | |
1971 | } | |
1166bf58 | 1972 | |
03bc3ef4 MS |
1973 | /* |
1974 | * Try to match the systemd sockets to the cupsd listeners... | |
1975 | */ | |
1720786e | 1976 | |
03bc3ef4 | 1977 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: %d listeners.", count); |
1166bf58 | 1978 | |
03bc3ef4 MS |
1979 | for (i = 0; i < count; i ++) |
1980 | service_add_listener(SD_LISTEN_FDS_START + i, i); | |
441de8b2 | 1981 | } |
1720786e | 1982 | |
03bc3ef4 MS |
1983 | #elif defined(HAVE_UPSTART) |
1984 | if (OnDemand) | |
441de8b2 | 1985 | { |
03bc3ef4 MS |
1986 | const char *e; /* Environment var */ |
1987 | int fd; /* File descriptor */ | |
1720786e | 1988 | |
1720786e | 1989 | |
03bc3ef4 MS |
1990 | if (!(e = getenv("UPSTART_EVENTS"))) |
1991 | { | |
1992 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: We did not get started via Upstart."); | |
1993 | exit(EXIT_FAILURE); | |
1994 | return; | |
1995 | } | |
1720786e | 1996 | |
03bc3ef4 MS |
1997 | if (strcasecmp(e, "socket")) |
1998 | { | |
1999 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: We did not get triggered via an Upstart socket event."); | |
2000 | exit(EXIT_FAILURE); | |
2001 | return; | |
2002 | } | |
1720786e | 2003 | |
03bc3ef4 MS |
2004 | if ((e = getenv("UPSTART_FDS")) == NULL) |
2005 | { | |
2006 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to get listener sockets from UPSTART_FDS."); | |
2007 | exit(EXIT_FAILURE); | |
2008 | return; | |
2009 | } | |
1166bf58 | 2010 | |
03bc3ef4 | 2011 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: UPSTART_FDS=%s", e); |
1720786e | 2012 | |
03bc3ef4 MS |
2013 | fd = (int)strtol(e, NULL, 10); |
2014 | if (fd < 0) | |
2015 | { | |
2016 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Could not parse UPSTART_FDS: %s", strerror(errno)); | |
2017 | exit(EXIT_FAILURE); | |
2018 | return; | |
2019 | } | |
2020 | ||
2021 | /* | |
2022 | * Upstart only supportst a single on-demand socket file descriptor... | |
2023 | */ | |
2024 | ||
2025 | service_add_listener(fd, 0); | |
2026 | } | |
2027 | #endif /* HAVE_LAUNCHD */ | |
1720786e MS |
2028 | } |
2029 | ||
2030 | ||
2031 | /* | |
03bc3ef4 | 2032 | * 'service_checkout()' - Update the KeepAlive/PID file as needed. |
1720786e MS |
2033 | */ |
2034 | ||
2035 | static void | |
03bc3ef4 | 2036 | service_checkout(int shutdown) /* I - Shutting down? */ |
1720786e | 2037 | { |
e9b2d701 MS |
2038 | cups_file_t *fp; /* File */ |
2039 | char pidfile[1024]; /* PID/KeepAlive file */ | |
03bc3ef4 MS |
2040 | |
2041 | ||
2042 | /* | |
2043 | * When running on-demand, use the KeepAlive file, otherwise write a PID file | |
2044 | * to StateDir... | |
2045 | */ | |
1720786e | 2046 | |
03bc3ef4 MS |
2047 | #ifdef HAVE_ONDEMAND |
2048 | if (OnDemand) | |
e9b2d701 | 2049 | { |
03bc3ef4 | 2050 | strlcpy(pidfile, CUPS_KEEPALIVE, sizeof(pidfile)); |
e9b2d701 MS |
2051 | |
2052 | if (cupsArrayCount(ActiveJobs) || /* Active jobs */ | |
2053 | WebInterface || /* Web interface enabled */ | |
2054 | NeedReload || /* Doing a reload */ | |
2055 | (Browsing && BrowseLocalProtocols && cupsArrayCount(Printers))) | |
2056 | /* Printers being shared */ | |
2057 | { | |
2058 | /* | |
2059 | * Create or remove the "keep-alive" file based on whether there are active | |
2060 | * jobs or shared printers to advertise... | |
2061 | */ | |
2062 | ||
2063 | shutdown = 0; | |
2064 | } | |
2065 | } | |
03bc3ef4 MS |
2066 | else |
2067 | #endif /* HAVE_ONDEMAND */ | |
2068 | snprintf(pidfile, sizeof(pidfile), "%s/cupsd.pid", StateDir); | |
1720786e | 2069 | |
e9b2d701 MS |
2070 | if (shutdown) |
2071 | { | |
2072 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Removing KeepAlive/PID file \"%s\".", pidfile); | |
1720786e | 2073 | |
e9b2d701 MS |
2074 | unlink(pidfile); |
2075 | } | |
2076 | else | |
1720786e | 2077 | { |
03bc3ef4 | 2078 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Creating KeepAlive/PID file \"%s\".", pidfile); |
1720786e | 2079 | |
03bc3ef4 MS |
2080 | if ((fp = cupsFileOpen(pidfile, "w")) != NULL) |
2081 | { | |
2082 | /* | |
2083 | * Save the PID in the file... | |
2084 | */ | |
2085 | ||
2086 | cupsFilePrintf(fp, "%d\n", (int)getpid()); | |
2087 | cupsFileClose(fp); | |
2088 | } | |
2089 | else | |
2090 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to create KeepAlive/PID file \"%s\": %s", pidfile, strerror(errno)); | |
1720786e | 2091 | } |
bbe495b0 | 2092 | |
bbe495b0 | 2093 | # ifdef __APPLE__ |
5c463d3f | 2094 | if (OnDemand && shutdown) |
bbe495b0 MS |
2095 | xpc_transaction_end(); |
2096 | # endif /* __APPLE__ */ | |
1720786e | 2097 | } |
1720786e MS |
2098 | |
2099 | ||
ef416fc2 | 2100 | /* |
2101 | * 'usage()' - Show scheduler usage. | |
2102 | */ | |
2103 | ||
2104 | static void | |
a4d04587 | 2105 | usage(int status) /* O - Exit status */ |
ef416fc2 | 2106 | { |
0837b7e8 MS |
2107 | FILE *fp = status ? stderr : stdout; /* Output file */ |
2108 | ||
2109 | ||
2110 | _cupsLangPuts(fp, _("Usage: cupsd [options]")); | |
2111 | _cupsLangPuts(fp, _("Options:")); | |
f3c17241 | 2112 | _cupsLangPuts(fp, _(" -c cupsd.conf Set cupsd.conf file to use.")); |
84315f46 | 2113 | _cupsLangPuts(fp, _(" -f Run in the foreground.")); |
3b433010 | 2114 | _cupsLangPuts(fp, _(" -F Run in the foreground but detach from console.")); |
84315f46 | 2115 | _cupsLangPuts(fp, _(" -h Show this usage message.")); |
1166bf58 | 2116 | #ifdef HAVE_ONDEMAND |
1720786e | 2117 | _cupsLangPuts(fp, _(" -l Run cupsd on demand.")); |
1166bf58 | 2118 | #endif /* HAVE_ONDEMAND */ |
3b433010 MS |
2119 | _cupsLangPuts(fp, _(" -s cups-files.conf Set cups-files.conf file to use.")); |
2120 | _cupsLangPuts(fp, _(" -t Test the configuration file.")); | |
0837b7e8 | 2121 | |
a4d04587 | 2122 | exit(status); |
ef416fc2 | 2123 | } |