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ef416fc2 | 1 | /* |
71f63681 | 2 | * "$Id: main.c 11721 2014-03-21 18:18:56Z msweet $" |
ef416fc2 | 3 | * |
71f63681 | 4 | * Main loop for the CUPS scheduler. |
ef416fc2 | 5 | * |
71f63681 MS |
6 | * Copyright 2007-2014 by Apple Inc. |
7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. | |
ef416fc2 | 8 | * |
71f63681 MS |
9 | * These coded instructions, statements, and computer programs are the |
10 | * property of Apple Inc. and are protected by Federal copyright | |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * "LICENSE" which should have been included with this file. If this | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 14 | */ |
15 | ||
16 | /* | |
17 | * Include necessary headers... | |
18 | */ | |
19 | ||
20 | #define _MAIN_C_ | |
21 | #include "cupsd.h" | |
22 | #include <sys/resource.h> | |
23 | #include <syslog.h> | |
24 | #include <grp.h> | |
25 | ||
a4d04587 | 26 | #ifdef HAVE_LAUNCH_H |
27 | # include <launch.h> | |
28 | # include <libgen.h> | |
ba55dc12 | 29 | # define CUPS_KEEPALIVE CUPS_CACHEDIR "/org.cups.cupsd" |
f7deaa1a | 30 | /* Name of the launchd KeepAlive file */ |
31 | # ifndef LAUNCH_JOBKEY_KEEPALIVE | |
32 | # define LAUNCH_JOBKEY_KEEPALIVE "KeepAlive" | |
33 | # endif /* !LAUNCH_JOBKEY_KEEPALIVE */ | |
34 | # ifndef LAUNCH_JOBKEY_PATHSTATE | |
35 | # define LAUNCH_JOBKEY_PATHSTATE "PathState" | |
36 | # endif /* !LAUNCH_JOBKEY_PATHSTATE */ | |
37 | # ifndef LAUNCH_JOBKEY_SERVICEIPC | |
38 | # define LAUNCH_JOBKEY_SERVICEIPC "ServiceIPC" | |
39 | # endif /* !LAUNCH_JOBKEY_SERVICEIPC */ | |
a4d04587 | 40 | #endif /* HAVE_LAUNCH_H */ |
41 | ||
ef416fc2 | 42 | #if defined(HAVE_MALLOC_H) && defined(HAVE_MALLINFO) |
43 | # include <malloc.h> | |
44 | #endif /* HAVE_MALLOC_H && HAVE_MALLINFO */ | |
3dd9c340 | 45 | |
fa73b229 | 46 | #ifdef HAVE_NOTIFY_H |
47 | # include <notify.h> | |
48 | #endif /* HAVE_NOTIFY_H */ | |
ef416fc2 | 49 | |
71f63681 MS |
50 | #ifdef HAVE_DBUS |
51 | # include <dbus/dbus.h> | |
52 | #endif /* HAVE_DBUS */ | |
53 | ||
3dd9c340 MS |
54 | #ifdef HAVE_SYS_PARAM_H |
55 | # include <sys/param.h> | |
56 | #endif /* HAVE_SYS_PARAM_H */ | |
57 | ||
ef416fc2 | 58 | |
59 | /* | |
60 | * Local functions... | |
61 | */ | |
62 | ||
a4d04587 | 63 | #ifdef HAVE_LAUNCHD |
411affcf | 64 | static void launchd_checkin(void); |
f7deaa1a | 65 | static void launchd_checkout(void); |
a4d04587 | 66 | #endif /* HAVE_LAUNCHD */ |
411affcf | 67 | static void parent_handler(int sig); |
68 | static void process_children(void); | |
69 | static void sigchld_handler(int sig); | |
70 | static void sighup_handler(int sig); | |
71 | static void sigterm_handler(int sig); | |
72 | static long select_timeout(int fds); | |
85dda01c | 73 | static void usage(int status) __attribute__((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? */ | |
90 | ||
ef416fc2 | 91 | |
92 | /* | |
93 | * 'main()' - Main entry for the CUPS scheduler. | |
94 | */ | |
95 | ||
96 | int /* O - Exit status */ | |
bd7854cb | 97 | main(int argc, /* I - Number of command-line args */ |
ef416fc2 | 98 | char *argv[]) /* I - Command-line arguments */ |
99 | { | |
100 | int i; /* Looping var */ | |
101 | char *opt; /* Option character */ | |
102 | int fg; /* Run in the foreground */ | |
bd7854cb | 103 | int fds; /* Number of ready descriptors */ |
ef416fc2 | 104 | cupsd_client_t *con; /* Current client */ |
105 | cupsd_job_t *job; /* Current job */ | |
106 | cupsd_listener_t *lis; /* Current listener */ | |
107 | time_t current_time, /* Current time */ | |
a4d04587 | 108 | activity, /* Client activity timer */ |
ef416fc2 | 109 | senddoc_time, /* Send-Document time */ |
411affcf | 110 | expire_time, /* Subscription expire time */ |
50fe7201 | 111 | report_time, /* Malloc/client/job report time */ |
5a662dc0 | 112 | event_time; /* Last event notification time */ |
f7deaa1a | 113 | long timeout; /* Timeout for cupsdDoSelect() */ |
ef416fc2 | 114 | struct rlimit limit; /* Runtime limit */ |
115 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
116 | struct sigaction action; /* Actions for POSIX signals */ | |
117 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
68b10830 MS |
118 | int run_as_child = 0; |
119 | /* Needed for background fork/exec */ | |
a41f09e2 | 120 | #ifdef __APPLE__ |
68b10830 | 121 | int use_sysman = !getuid(); |
d7871c8c | 122 | /* Use system management functions? */ |
a4924f6c MS |
123 | #else |
124 | time_t netif_time = 0; /* Time since last network update */ | |
a41f09e2 | 125 | #endif /* __APPLE__ */ |
a4d04587 | 126 | #if HAVE_LAUNCHD |
4400e98d | 127 | int launchd_idle_exit; |
a4d04587 | 128 | /* Idle exit on select timeout? */ |
129 | #endif /* HAVE_LAUNCHD */ | |
ef416fc2 | 130 | |
131 | ||
db1f069b MS |
132 | #ifdef HAVE_GETEUID |
133 | /* | |
134 | * Check for setuid invocation, which we do not support! | |
135 | */ | |
136 | ||
137 | if (getuid() != geteuid()) | |
138 | { | |
4d301e69 | 139 | fputs("cupsd: Cannot run as a setuid program\n", stderr); |
db1f069b MS |
140 | return (1); |
141 | } | |
142 | #endif /* HAVE_GETEUID */ | |
143 | ||
ef416fc2 | 144 | /* |
145 | * Check for command-line arguments... | |
146 | */ | |
147 | ||
4400e98d | 148 | fg = 0; |
ef416fc2 | 149 | |
09a101d6 | 150 | #ifdef HAVE_LAUNCHD |
151 | if (getenv("CUPSD_LAUNCHD")) | |
152 | { | |
153 | Launchd = 1; | |
154 | fg = 1; | |
155 | } | |
156 | #endif /* HAVE_LAUNCHD */ | |
157 | ||
ef416fc2 | 158 | for (i = 1; i < argc; i ++) |
159 | if (argv[i][0] == '-') | |
160 | for (opt = argv[i] + 1; *opt != '\0'; opt ++) | |
161 | switch (*opt) | |
162 | { | |
a41f09e2 MS |
163 | case 'C' : /* Run as child with config file */ |
164 | run_as_child = 1; | |
165 | fg = -1; | |
a41f09e2 | 166 | |
ef416fc2 | 167 | case 'c' : /* Configuration file */ |
168 | i ++; | |
169 | if (i >= argc) | |
a4d04587 | 170 | { |
171 | _cupsLangPuts(stderr, _("cupsd: Expected config filename " | |
0837b7e8 | 172 | "after \"-c\" option.")); |
a4d04587 | 173 | usage(1); |
174 | } | |
ef416fc2 | 175 | |
176 | if (argv[i][0] == '/') | |
177 | { | |
178 | /* | |
179 | * Absolute directory... | |
180 | */ | |
181 | ||
182 | cupsdSetString(&ConfigurationFile, argv[i]); | |
183 | } | |
184 | else | |
185 | { | |
186 | /* | |
187 | * Relative directory... | |
188 | */ | |
189 | ||
09ec0018 | 190 | char *current; /* Current directory */ |
ef416fc2 | 191 | |
09ec0018 | 192 | /* |
193 | * Allocate a buffer for the current working directory to | |
194 | * reduce run-time stack usage; this approximates the | |
195 | * behavior of some implementations of getcwd() when they | |
196 | * are passed a NULL pointer. | |
197 | */ | |
198 | ||
91c84a35 MS |
199 | if ((current = malloc(1024)) == NULL) |
200 | { | |
201 | _cupsLangPuts(stderr, | |
0837b7e8 | 202 | _("cupsd: Unable to get current directory.")); |
91c84a35 MS |
203 | return (1); |
204 | } | |
205 | ||
206 | if (!getcwd(current, 1024)) | |
207 | { | |
208 | _cupsLangPuts(stderr, | |
0837b7e8 | 209 | _("cupsd: Unable to get current directory.")); |
91c84a35 MS |
210 | free(current); |
211 | return (1); | |
212 | } | |
09ec0018 | 213 | |
ef416fc2 | 214 | cupsdSetStringf(&ConfigurationFile, "%s/%s", current, argv[i]); |
09ec0018 | 215 | free(current); |
ef416fc2 | 216 | } |
217 | break; | |
218 | ||
219 | case 'f' : /* Run in foreground... */ | |
220 | fg = 1; | |
221 | break; | |
222 | ||
bd7854cb | 223 | case 'F' : /* Run in foreground, but disconnect from terminal... */ |
ef416fc2 | 224 | fg = -1; |
225 | break; | |
226 | ||
a4d04587 | 227 | case 'h' : /* Show usage/help */ |
228 | usage(0); | |
229 | break; | |
230 | ||
231 | case 'l' : /* Started by launchd... */ | |
232 | #ifdef HAVE_LAUNCHD | |
4400e98d | 233 | Launchd = 1; |
a4d04587 | 234 | fg = 1; |
235 | #else | |
236 | _cupsLangPuts(stderr, _("cupsd: launchd(8) support not compiled " | |
0837b7e8 | 237 | "in, running in normal mode.")); |
a4d04587 | 238 | fg = 0; |
239 | #endif /* HAVE_LAUNCHD */ | |
240 | break; | |
241 | ||
a74454a7 | 242 | case 'p' : /* Stop immediately for profiling */ |
5a662dc0 MS |
243 | fputs("cupsd: -p (startup profiling) is for internal testing " |
244 | "use only!\n", stderr); | |
a74454a7 | 245 | stop_scheduler = 1; |
246 | fg = 1; | |
247 | break; | |
248 | ||
1340db2d | 249 | case 'P' : /* Disable security profiles */ |
5a662dc0 MS |
250 | fputs("cupsd: -P (disable security profiles) is for internal " |
251 | "testing use only!\n", stderr); | |
1340db2d MS |
252 | UseProfiles = 0; |
253 | break; | |
254 | ||
c41769ff MS |
255 | case 's' : /* Set cups-files.conf location */ |
256 | i ++; | |
257 | if (i >= argc) | |
258 | { | |
259 | _cupsLangPuts(stderr, _("cupsd: Expected cups-files.conf " | |
260 | "filename after \"-s\" option.")); | |
261 | usage(1); | |
262 | } | |
263 | ||
264 | if (argv[i][0] != '/') | |
265 | { | |
266 | /* | |
267 | * Relative filename not allowed... | |
268 | */ | |
269 | ||
270 | _cupsLangPuts(stderr, _("cupsd: Relative cups-files.conf " | |
271 | "filename not allowed.")); | |
272 | usage(1); | |
273 | } | |
274 | ||
275 | cupsdSetString(&CupsFilesFile, argv[i]); | |
276 | break; | |
277 | ||
68b10830 MS |
278 | #ifdef __APPLE__ |
279 | case 'S' : /* Disable system management functions */ | |
5a662dc0 MS |
280 | fputs("cupsd: -S (disable system management) for internal " |
281 | "testing use only!\n", stderr); | |
68b10830 MS |
282 | use_sysman = 0; |
283 | break; | |
284 | #endif /* __APPLE__ */ | |
285 | ||
2e4ff8af MS |
286 | case 't' : /* Test the cupsd.conf file... */ |
287 | TestConfigFile = 1; | |
288 | fg = 1; | |
289 | break; | |
290 | ||
ef416fc2 | 291 | default : /* Unknown option */ |
a4d04587 | 292 | _cupsLangPrintf(stderr, _("cupsd: Unknown option \"%c\" - " |
0837b7e8 | 293 | "aborting."), *opt); |
a4d04587 | 294 | usage(1); |
ef416fc2 | 295 | break; |
296 | } | |
297 | else | |
298 | { | |
0837b7e8 | 299 | _cupsLangPrintf(stderr, _("cupsd: Unknown argument \"%s\" - aborting."), |
a4d04587 | 300 | argv[i]); |
301 | usage(1); | |
ef416fc2 | 302 | } |
303 | ||
304 | if (!ConfigurationFile) | |
305 | cupsdSetString(&ConfigurationFile, CUPS_SERVERROOT "/cupsd.conf"); | |
306 | ||
cb7f98ee MS |
307 | if (!CupsFilesFile) |
308 | { | |
309 | char *filename, /* Copy of cupsd.conf filename */ | |
310 | *slash; /* Final slash in cupsd.conf filename */ | |
311 | size_t len; /* Size of buffer */ | |
312 | ||
313 | len = strlen(ConfigurationFile) + 15; | |
314 | if ((filename = malloc(len)) == NULL) | |
315 | { | |
316 | _cupsLangPrintf(stderr, | |
317 | _("cupsd: Unable to get path to " | |
318 | "cups-files.conf file.")); | |
319 | return (1); | |
320 | } | |
321 | ||
322 | strlcpy(filename, ConfigurationFile, len); | |
323 | if ((slash = strrchr(filename, '/')) == NULL) | |
324 | { | |
325 | _cupsLangPrintf(stderr, | |
326 | _("cupsd: Unable to get path to " | |
327 | "cups-files.conf file.")); | |
328 | return (1); | |
329 | } | |
330 | ||
331 | strlcpy(slash, "/cups-files.conf", len - (slash - filename)); | |
332 | cupsdSetString(&CupsFilesFile, filename); | |
333 | free(filename); | |
334 | } | |
335 | ||
ef416fc2 | 336 | /* |
337 | * If the user hasn't specified "-f", run in the background... | |
338 | */ | |
339 | ||
340 | if (!fg) | |
341 | { | |
342 | /* | |
343 | * Setup signal handlers for the parent... | |
344 | */ | |
345 | ||
346 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
347 | sigset(SIGUSR1, parent_handler); | |
348 | sigset(SIGCHLD, parent_handler); | |
349 | ||
350 | sigset(SIGHUP, SIG_IGN); | |
351 | #elif defined(HAVE_SIGACTION) | |
352 | memset(&action, 0, sizeof(action)); | |
353 | sigemptyset(&action.sa_mask); | |
354 | sigaddset(&action.sa_mask, SIGUSR1); | |
355 | action.sa_handler = parent_handler; | |
356 | sigaction(SIGUSR1, &action, NULL); | |
357 | sigaction(SIGCHLD, &action, NULL); | |
358 | ||
359 | sigemptyset(&action.sa_mask); | |
360 | action.sa_handler = SIG_IGN; | |
361 | sigaction(SIGHUP, &action, NULL); | |
362 | #else | |
363 | signal(SIGUSR1, parent_handler); | |
364 | signal(SIGCLD, parent_handler); | |
365 | ||
366 | signal(SIGHUP, SIG_IGN); | |
367 | #endif /* HAVE_SIGSET */ | |
368 | ||
369 | if (fork() > 0) | |
370 | { | |
371 | /* | |
372 | * OK, wait for the child to startup and send us SIGUSR1 or to crash | |
373 | * and the OS send us SIGCHLD... We also need to ignore SIGHUP which | |
374 | * might be sent by the init script to restart the scheduler... | |
375 | */ | |
376 | ||
377 | for (; parent_signal == 0;) | |
378 | sleep(1); | |
379 | ||
380 | if (parent_signal == SIGUSR1) | |
381 | return (0); | |
382 | ||
383 | if (wait(&i) < 0) | |
384 | { | |
385 | perror("cupsd"); | |
386 | return (1); | |
387 | } | |
388 | else if (WIFEXITED(i)) | |
389 | { | |
4d301e69 | 390 | fprintf(stderr, "cupsd: Child exited with status %d\n", |
bd7854cb | 391 | WEXITSTATUS(i)); |
ef416fc2 | 392 | return (2); |
393 | } | |
394 | else | |
395 | { | |
4d301e69 | 396 | fprintf(stderr, "cupsd: Child exited on signal %d\n", WTERMSIG(i)); |
ef416fc2 | 397 | return (3); |
398 | } | |
399 | } | |
a41f09e2 | 400 | |
3dd9c340 | 401 | #if defined(__OpenBSD__) && OpenBSD < 201211 |
68b10830 MS |
402 | /* |
403 | * Call _thread_sys_closefrom() so the child process doesn't reset the | |
404 | * parent's file descriptors to be blocking. This is a workaround for a | |
3dd9c340 | 405 | * limitation of userland libpthread on older versions of OpenBSD. |
68b10830 | 406 | */ |
ef55b745 | 407 | |
68b10830 | 408 | _thread_sys_closefrom(0); |
3dd9c340 | 409 | #endif /* __OpenBSD__ && OpenBSD < 201211 */ |
68b10830 | 410 | |
a41f09e2 | 411 | /* |
68b10830 MS |
412 | * Since CoreFoundation and DBUS both create fork-unsafe data on execution of |
413 | * a program, and since this kind of really unfriendly behavior seems to be | |
414 | * more common these days in system libraries, we need to re-execute the | |
415 | * background cupsd with the "-C" option to avoid problems. Unfortunately, | |
416 | * we also have to assume that argv[0] contains the name of the cupsd | |
417 | * executable - there is no portable way to get the real pathname... | |
a41f09e2 MS |
418 | */ |
419 | ||
420 | execlp(argv[0], argv[0], "-C", ConfigurationFile, (char *)0); | |
421 | exit(errno); | |
ef416fc2 | 422 | } |
423 | ||
424 | if (fg < 1) | |
425 | { | |
426 | /* | |
427 | * Make sure we aren't tying up any filesystems... | |
428 | */ | |
429 | ||
430 | chdir("/"); | |
431 | ||
432 | #ifndef DEBUG | |
433 | /* | |
434 | * Disable core dumps... | |
435 | */ | |
436 | ||
437 | getrlimit(RLIMIT_CORE, &limit); | |
438 | limit.rlim_cur = 0; | |
439 | setrlimit(RLIMIT_CORE, &limit); | |
440 | ||
441 | /* | |
442 | * Disconnect from the controlling terminal... | |
443 | */ | |
444 | ||
445 | setsid(); | |
446 | ||
447 | /* | |
448 | * Close all open files... | |
449 | */ | |
450 | ||
451 | getrlimit(RLIMIT_NOFILE, &limit); | |
452 | ||
b94498cf | 453 | for (i = 0; i < limit.rlim_cur && i < 1024; i ++) |
ef416fc2 | 454 | close(i); |
a4924f6c MS |
455 | |
456 | /* | |
457 | * Redirect stdin/out/err to /dev/null... | |
458 | */ | |
459 | ||
68b10830 MS |
460 | if ((i = open("/dev/null", O_RDONLY)) != 0) |
461 | { | |
462 | dup2(i, 0); | |
463 | close(i); | |
464 | } | |
465 | ||
466 | if ((i = open("/dev/null", O_WRONLY)) != 1) | |
467 | { | |
468 | dup2(i, 1); | |
469 | close(i); | |
470 | } | |
471 | ||
472 | if ((i = open("/dev/null", O_WRONLY)) != 2) | |
473 | { | |
474 | dup2(i, 2); | |
475 | close(i); | |
476 | } | |
ef416fc2 | 477 | #endif /* DEBUG */ |
478 | } | |
479 | ||
480 | /* | |
481 | * Set the timezone info... | |
482 | */ | |
483 | ||
484 | tzset(); | |
485 | ||
486 | #ifdef LC_TIME | |
487 | setlocale(LC_TIME, ""); | |
488 | #endif /* LC_TIME */ | |
489 | ||
71f63681 MS |
490 | #ifdef HAVE_DBUS_THREADS_INIT |
491 | /* | |
492 | * Enable threading support for D-BUS... | |
493 | */ | |
494 | ||
495 | dbus_threads_init_default(); | |
496 | #endif /* HAVE_DBUS_THREADS_INIT */ | |
497 | ||
ef416fc2 | 498 | /* |
499 | * Set the maximum number of files... | |
500 | */ | |
501 | ||
502 | getrlimit(RLIMIT_NOFILE, &limit); | |
503 | ||
f7deaa1a | 504 | #if !defined(HAVE_POLL) && !defined(HAVE_EPOLL) && !defined(HAVE_KQUEUE) |
f7faf1f5 | 505 | if (limit.rlim_max > FD_SETSIZE) |
506 | MaxFDs = FD_SETSIZE; | |
ef416fc2 | 507 | else |
f7deaa1a | 508 | #endif /* !HAVE_POLL && !HAVE_EPOLL && !HAVE_KQUEUE */ |
509 | #ifdef RLIM_INFINITY | |
510 | if (limit.rlim_max == RLIM_INFINITY) | |
511 | MaxFDs = 16384; | |
512 | else | |
513 | #endif /* RLIM_INFINITY */ | |
ef416fc2 | 514 | MaxFDs = limit.rlim_max; |
515 | ||
516 | limit.rlim_cur = MaxFDs; | |
517 | ||
518 | setrlimit(RLIMIT_NOFILE, &limit); | |
519 | ||
f7deaa1a | 520 | cupsdStartSelect(); |
ef416fc2 | 521 | |
522 | /* | |
523 | * Read configuration... | |
524 | */ | |
525 | ||
526 | if (!cupsdReadConfiguration()) | |
ef416fc2 | 527 | return (1); |
2e4ff8af MS |
528 | else if (TestConfigFile) |
529 | { | |
cb7f98ee MS |
530 | printf("\"%s\" is OK.\n", CupsFilesFile); |
531 | printf("\"%s\" is OK.\n", ConfigurationFile); | |
2e4ff8af MS |
532 | return (0); |
533 | } | |
ef416fc2 | 534 | |
ba55dc12 MS |
535 | /* |
536 | * Clean out old temp files and printer cache data. | |
537 | */ | |
cc0d019f | 538 | |
ba55dc12 | 539 | if (!strncmp(TempDir, RequestRoot, strlen(RequestRoot))) |
321d8d57 | 540 | cupsdCleanFiles(TempDir, NULL); |
cc0d019f | 541 | |
321d8d57 | 542 | cupsdCleanFiles(CacheDir, "*.ipp"); |
cc0d019f | 543 | |
a4d04587 | 544 | #if HAVE_LAUNCHD |
4400e98d | 545 | if (Launchd) |
a4d04587 | 546 | { |
547 | /* | |
b94498cf | 548 | * If we were started by launchd get the listen sockets file descriptors... |
f7deaa1a | 549 | */ |
a4d04587 | 550 | |
551 | launchd_checkin(); | |
e4572d57 | 552 | launchd_checkout(); |
a4d04587 | 553 | } |
554 | #endif /* HAVE_LAUNCHD */ | |
555 | ||
556 | /* | |
557 | * Startup the server... | |
558 | */ | |
559 | ||
6d2f911b MS |
560 | httpInitialize(); |
561 | ||
a4d04587 | 562 | cupsdStartServer(); |
563 | ||
ef416fc2 | 564 | /* |
565 | * Catch hangup and child signals and ignore broken pipes... | |
566 | */ | |
567 | ||
568 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
e1d6a774 | 569 | sigset(SIGCHLD, sigchld_handler); |
4744bd90 | 570 | sigset(SIGHUP, sighup_handler); |
ef416fc2 | 571 | sigset(SIGPIPE, SIG_IGN); |
572 | sigset(SIGTERM, sigterm_handler); | |
573 | #elif defined(HAVE_SIGACTION) | |
574 | memset(&action, 0, sizeof(action)); | |
575 | ||
e1d6a774 | 576 | sigemptyset(&action.sa_mask); |
577 | sigaddset(&action.sa_mask, SIGTERM); | |
578 | sigaddset(&action.sa_mask, SIGCHLD); | |
579 | action.sa_handler = sigchld_handler; | |
580 | sigaction(SIGCHLD, &action, NULL); | |
581 | ||
ef416fc2 | 582 | sigemptyset(&action.sa_mask); |
583 | sigaddset(&action.sa_mask, SIGHUP); | |
4744bd90 | 584 | action.sa_handler = sighup_handler; |
ef416fc2 | 585 | sigaction(SIGHUP, &action, NULL); |
586 | ||
587 | sigemptyset(&action.sa_mask); | |
588 | action.sa_handler = SIG_IGN; | |
589 | sigaction(SIGPIPE, &action, NULL); | |
590 | ||
591 | sigemptyset(&action.sa_mask); | |
592 | sigaddset(&action.sa_mask, SIGTERM); | |
593 | sigaddset(&action.sa_mask, SIGCHLD); | |
594 | action.sa_handler = sigterm_handler; | |
595 | sigaction(SIGTERM, &action, NULL); | |
596 | #else | |
e1d6a774 | 597 | signal(SIGCLD, sigchld_handler); /* No, SIGCLD isn't a typo... */ |
4744bd90 | 598 | signal(SIGHUP, sighup_handler); |
ef416fc2 | 599 | signal(SIGPIPE, SIG_IGN); |
600 | signal(SIGTERM, sigterm_handler); | |
601 | #endif /* HAVE_SIGSET */ | |
602 | ||
ef416fc2 | 603 | /* |
604 | * Initialize authentication certificates... | |
605 | */ | |
606 | ||
607 | cupsdInitCerts(); | |
608 | ||
609 | /* | |
610 | * If we are running in the background, signal the parent process that | |
611 | * we are up and running... | |
612 | */ | |
613 | ||
a41f09e2 | 614 | if (!fg || run_as_child) |
ef416fc2 | 615 | { |
616 | /* | |
617 | * Send a signal to the parent process, but only if the parent is | |
618 | * not PID 1 (init). This avoids accidentally shutting down the | |
619 | * system on OpenBSD if you CTRL-C the server before it is up... | |
620 | */ | |
621 | ||
622 | i = getppid(); /* Save parent PID to avoid race condition */ | |
623 | ||
624 | if (i != 1) | |
625 | kill(i, SIGUSR1); | |
626 | } | |
627 | ||
e1d6a774 | 628 | #ifdef __APPLE__ |
09ec0018 | 629 | /* |
630 | * Start power management framework... | |
631 | */ | |
632 | ||
1340db2d MS |
633 | if (use_sysman) |
634 | cupsdStartSystemMonitor(); | |
e1d6a774 | 635 | #endif /* __APPLE__ */ |
ef416fc2 | 636 | |
49d87452 MS |
637 | /* |
638 | * Send server-started event... | |
639 | */ | |
640 | ||
641 | #ifdef HAVE_LAUNCHD | |
642 | if (Launchd) | |
643 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, | |
644 | "Scheduler started via launchd."); | |
645 | else | |
646 | #endif /* HAVE_LAUNCHD */ | |
647 | if (fg) | |
648 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, | |
649 | "Scheduler started in foreground."); | |
650 | else | |
651 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, | |
652 | "Scheduler started in background."); | |
653 | ||
ef416fc2 | 654 | /* |
655 | * Start any pending print jobs... | |
656 | */ | |
657 | ||
658 | cupsdCheckJobs(); | |
659 | ||
660 | /* | |
661 | * Loop forever... | |
662 | */ | |
663 | ||
50fe7201 | 664 | current_time = time(NULL); |
50fe7201 MS |
665 | event_time = current_time; |
666 | expire_time = current_time; | |
ef416fc2 | 667 | fds = 1; |
5bd77a73 | 668 | report_time = 0; |
50fe7201 | 669 | senddoc_time = current_time; |
ef416fc2 | 670 | |
671 | while (!stop_scheduler) | |
672 | { | |
ef416fc2 | 673 | /* |
674 | * Check if there are dead children to handle... | |
675 | */ | |
676 | ||
677 | if (dead_children) | |
678 | process_children(); | |
679 | ||
680 | /* | |
681 | * Check if we need to load the server configuration file... | |
682 | */ | |
683 | ||
684 | if (NeedReload) | |
685 | { | |
686 | /* | |
687 | * Close any idle clients... | |
688 | */ | |
689 | ||
bd7854cb | 690 | if (cupsArrayCount(Clients) > 0) |
ef416fc2 | 691 | { |
bd7854cb | 692 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
693 | con; | |
694 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 695 | if (con->http.state == HTTP_WAITING) |
ef416fc2 | 696 | cupsdCloseClient(con); |
ef416fc2 | 697 | else |
698 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
699 | ||
700 | cupsdPauseListening(); | |
701 | } | |
702 | ||
ef416fc2 | 703 | /* |
704 | * Restart if all clients are closed and all jobs finished, or | |
705 | * if the reload timeout has elapsed... | |
706 | */ | |
707 | ||
bd7854cb | 708 | if ((cupsArrayCount(Clients) == 0 && |
238c3832 | 709 | (cupsArrayCount(PrintingJobs) == 0 || NeedReload != RELOAD_ALL)) || |
ef416fc2 | 710 | (time(NULL) - ReloadTime) >= ReloadTimeout) |
711 | { | |
a4d04587 | 712 | /* |
713 | * Shutdown the server... | |
714 | */ | |
715 | ||
7cf5915e MS |
716 | DoingShutdown = 1; |
717 | ||
a4d04587 | 718 | cupsdStopServer(); |
719 | ||
720 | /* | |
721 | * Read configuration... | |
722 | */ | |
723 | ||
ef416fc2 | 724 | if (!cupsdReadConfiguration()) |
725 | { | |
726 | syslog(LOG_LPR, "Unable to read configuration file \'%s\' - exiting!", | |
727 | ConfigurationFile); | |
728 | break; | |
729 | } | |
a4d04587 | 730 | |
731 | #if HAVE_LAUNCHD | |
4400e98d | 732 | if (Launchd) |
a4d04587 | 733 | { |
b94498cf | 734 | /* |
5a662dc0 MS |
735 | * If we were started by launchd, get the listen socket file |
736 | * descriptors... | |
b94498cf | 737 | */ |
738 | ||
a4d04587 | 739 | launchd_checkin(); |
e4572d57 | 740 | launchd_checkout(); |
a4d04587 | 741 | } |
742 | #endif /* HAVE_LAUNCHD */ | |
743 | ||
744 | /* | |
745 | * Startup the server... | |
746 | */ | |
747 | ||
7cf5915e MS |
748 | DoingShutdown = 0; |
749 | ||
a4d04587 | 750 | cupsdStartServer(); |
49d87452 MS |
751 | |
752 | /* | |
753 | * Send a server-restarted event... | |
754 | */ | |
755 | ||
756 | cupsdAddEvent(CUPSD_EVENT_SERVER_RESTARTED, NULL, NULL, | |
757 | "Scheduler restarted."); | |
ef416fc2 | 758 | } |
759 | } | |
760 | ||
761 | /* | |
f7deaa1a | 762 | * Check for available input or ready output. If cupsdDoSelect() |
763 | * returns 0 or -1, something bad happened and we should exit | |
764 | * immediately. | |
ef416fc2 | 765 | * |
766 | * Note that we at least have one listening socket open at all | |
767 | * times. | |
768 | */ | |
769 | ||
50fe7201 MS |
770 | if ((timeout = select_timeout(fds)) > 1 && LastEvent) |
771 | timeout = 1; | |
ef416fc2 | 772 | |
a4d04587 | 773 | #if HAVE_LAUNCHD |
774 | /* | |
775 | * If no other work is scheduled and we're being controlled by | |
411affcf | 776 | * launchd then timeout after 'LaunchdTimeout' seconds of |
a4d04587 | 777 | * inactivity... |
778 | */ | |
779 | ||
a2326b5b | 780 | if (timeout == 86400 && Launchd && LaunchdTimeout && |
bc44d920 | 781 | !cupsArrayCount(ActiveJobs) && |
a2326b5b | 782 | (!Browsing || !BrowseLocalProtocols || !cupsArrayCount(Printers))) |
a4d04587 | 783 | { |
f7deaa1a | 784 | timeout = LaunchdTimeout; |
a4d04587 | 785 | launchd_idle_exit = 1; |
786 | } | |
787 | else | |
788 | launchd_idle_exit = 0; | |
789 | #endif /* HAVE_LAUNCHD */ | |
790 | ||
f7deaa1a | 791 | if ((fds = cupsdDoSelect(timeout)) < 0) |
ef416fc2 | 792 | { |
ef416fc2 | 793 | /* |
794 | * Got an error from select! | |
795 | */ | |
796 | ||
37e7e6e0 | 797 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
f7deaa1a | 798 | cupsd_printer_t *p; /* Current printer */ |
37e7e6e0 | 799 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
f7deaa1a | 800 | |
801 | ||
802 | if (errno == EINTR) /* Just interrupted by a signal */ | |
ef416fc2 | 803 | continue; |
804 | ||
805 | /* | |
806 | * Log all sorts of debug info to help track down the problem. | |
807 | */ | |
808 | ||
f7deaa1a | 809 | cupsdLogMessage(CUPSD_LOG_EMERG, "cupsdDoSelect() failed - %s!", |
ef416fc2 | 810 | strerror(errno)); |
811 | ||
bd7854cb | 812 | for (i = 0, con = (cupsd_client_t *)cupsArrayFirst(Clients); |
813 | con; | |
814 | i ++, con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 815 | cupsdLogMessage(CUPSD_LOG_EMERG, |
816 | "Clients[%d] = %d, file = %d, state = %d", | |
817 | i, con->http.fd, con->file, con->http.state); | |
818 | ||
bd7854cb | 819 | for (i = 0, lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); |
820 | lis; | |
821 | i ++, lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
ef416fc2 | 822 | cupsdLogMessage(CUPSD_LOG_EMERG, "Listeners[%d] = %d", i, lis->fd); |
823 | ||
923edb68 | 824 | cupsdLogMessage(CUPSD_LOG_EMERG, "CGIPipes[0] = %d", CGIPipes[0]); |
825 | ||
09ec0018 | 826 | #ifdef __APPLE__ |
827 | cupsdLogMessage(CUPSD_LOG_EMERG, "SysEventPipes[0] = %d", | |
828 | SysEventPipes[0]); | |
829 | #endif /* __APPLE__ */ | |
830 | ||
ef416fc2 | 831 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); |
832 | job; | |
833 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
834 | cupsdLogMessage(CUPSD_LOG_EMERG, "Jobs[%d] = %d < [%d %d] > [%d %d]", | |
835 | job->id, | |
836 | job->status_buffer ? job->status_buffer->fd : -1, | |
837 | job->print_pipes[0], job->print_pipes[1], | |
838 | job->back_pipes[0], job->back_pipes[1]); | |
f7deaa1a | 839 | |
37e7e6e0 | 840 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
f7deaa1a | 841 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); |
842 | p; | |
843 | p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
7a14d768 MS |
844 | cupsdLogMessage(CUPSD_LOG_EMERG, "printer[%s] reg_name=\"%s\"", p->name, |
845 | p->reg_name ? p->reg_name : "(null)"); | |
37e7e6e0 | 846 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
f7deaa1a | 847 | |
ef416fc2 | 848 | break; |
849 | } | |
850 | ||
851 | current_time = time(NULL); | |
852 | ||
3dfe78b3 MS |
853 | /* |
854 | * Write dirty config/state files... | |
855 | */ | |
856 | ||
857 | if (DirtyCleanTime && current_time >= DirtyCleanTime) | |
3dfe78b3 | 858 | cupsdCleanDirty(); |
3dfe78b3 | 859 | |
e6013cfa MS |
860 | #ifdef __APPLE__ |
861 | /* | |
862 | * If we are going to sleep and still have pending jobs, stop them after | |
863 | * a period of time... | |
864 | */ | |
865 | ||
866 | if (SleepJobs > 0 && current_time >= SleepJobs && | |
867 | cupsArrayCount(PrintingJobs) > 0) | |
868 | { | |
869 | SleepJobs = 0; | |
e60ec91f | 870 | cupsdStopAllJobs(CUPSD_JOB_DEFAULT, 5); |
e6013cfa MS |
871 | } |
872 | #endif /* __APPLE__ */ | |
873 | ||
a4924f6c MS |
874 | #ifndef __APPLE__ |
875 | /* | |
876 | * Update the network interfaces once a minute... | |
877 | */ | |
878 | ||
879 | if ((current_time - netif_time) >= 60) | |
880 | { | |
881 | netif_time = current_time; | |
882 | NetIFUpdate = 1; | |
883 | } | |
884 | #endif /* !__APPLE__ */ | |
885 | ||
a4d04587 | 886 | #if HAVE_LAUNCHD |
887 | /* | |
411affcf | 888 | * If no other work was scheduled and we're being controlled by launchd |
a4d04587 | 889 | * then timeout after 'LaunchdTimeout' seconds of inactivity... |
890 | */ | |
891 | ||
892 | if (!fds && launchd_idle_exit) | |
893 | { | |
894 | cupsdLogMessage(CUPSD_LOG_INFO, | |
895 | "Printer sharing is off and there are no jobs pending, " | |
896 | "will restart on demand."); | |
897 | stop_scheduler = 1; | |
898 | break; | |
899 | } | |
900 | #endif /* HAVE_LAUNCHD */ | |
901 | ||
76cd9e37 MS |
902 | /* |
903 | * Resume listening for new connections as needed... | |
904 | */ | |
905 | ||
906 | if (ListeningPaused && ListeningPaused <= current_time && | |
907 | cupsArrayCount(Clients) < MaxClients) | |
908 | cupsdResumeListening(); | |
909 | ||
ef416fc2 | 910 | /* |
bd7854cb | 911 | * Expire subscriptions and unload completed jobs as needed... |
ef416fc2 | 912 | */ |
913 | ||
bd7854cb | 914 | if (current_time > expire_time) |
ef416fc2 | 915 | { |
bd7854cb | 916 | if (cupsArrayCount(Subscriptions) > 0) |
917 | cupsdExpireSubscriptions(NULL, NULL); | |
918 | ||
919 | cupsdUnloadCompletedJobs(); | |
ef416fc2 | 920 | |
921 | expire_time = current_time; | |
922 | } | |
923 | ||
07ed0e9a | 924 | #ifndef HAVE_AUTHORIZATION_H |
ef416fc2 | 925 | /* |
f7deaa1a | 926 | * Update the root certificate once every 5 minutes if we have client |
927 | * connections... | |
ef416fc2 | 928 | */ |
929 | ||
f7deaa1a | 930 | if ((current_time - RootCertTime) >= RootCertDuration && RootCertDuration && |
931 | !RunUser && cupsArrayCount(Clients)) | |
932 | { | |
933 | /* | |
934 | * Update the root certificate... | |
935 | */ | |
936 | ||
937 | cupsdDeleteCert(0); | |
0fa6c7fa | 938 | cupsdAddCert(0, "root", cupsdDefaultAuthType()); |
f7deaa1a | 939 | } |
07ed0e9a | 940 | #endif /* !HAVE_AUTHORIZATION_H */ |
ef416fc2 | 941 | |
942 | /* | |
943 | * Check for new data on the client sockets... | |
944 | */ | |
945 | ||
bd7854cb | 946 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
947 | con; | |
948 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 949 | { |
950 | /* | |
f7deaa1a | 951 | * Process pending data in the input buffer... |
ef416fc2 | 952 | */ |
953 | ||
f7deaa1a | 954 | if (con->http.used) |
ef416fc2 | 955 | { |
f7deaa1a | 956 | cupsdReadClient(con); |
957 | continue; | |
ef416fc2 | 958 | } |
959 | ||
960 | /* | |
961 | * Check the activity and close old clients... | |
962 | */ | |
963 | ||
964 | activity = current_time - Timeout; | |
965 | if (con->http.activity < activity && !con->pipe_pid) | |
966 | { | |
967 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
968 | "Closing client %d after %d seconds of inactivity...", | |
969 | con->http.fd, Timeout); | |
970 | ||
971 | cupsdCloseClient(con); | |
ef416fc2 | 972 | continue; |
973 | } | |
974 | } | |
975 | ||
976 | /* | |
977 | * Update any pending multi-file documents... | |
978 | */ | |
979 | ||
980 | if ((current_time - senddoc_time) >= 10) | |
981 | { | |
982 | cupsdCheckJobs(); | |
983 | senddoc_time = current_time; | |
984 | } | |
985 | ||
82cc1f9a MS |
986 | /* |
987 | * Clean job history... | |
988 | */ | |
989 | ||
990 | if (JobHistoryUpdate && current_time >= JobHistoryUpdate) | |
991 | cupsdCleanJobs(); | |
992 | ||
ef416fc2 | 993 | /* |
5bd77a73 | 994 | * Log statistics at most once a minute when in debug mode... |
ef416fc2 | 995 | */ |
996 | ||
5bd77a73 | 997 | if ((current_time - report_time) >= 60 && LogLevel >= CUPSD_LOG_DEBUG) |
ef416fc2 | 998 | { |
5bd77a73 MS |
999 | size_t string_count, /* String count */ |
1000 | alloc_bytes, /* Allocated string bytes */ | |
1001 | total_bytes; /* Total string bytes */ | |
4400e98d | 1002 | #ifdef HAVE_MALLINFO |
5bd77a73 | 1003 | struct mallinfo mem; /* Malloc information */ |
ef416fc2 | 1004 | |
1005 | ||
1006 | mem = mallinfo(); | |
5bd77a73 MS |
1007 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-arena=%lu", mem.arena); |
1008 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-used=%lu", | |
1009 | mem.usmblks + mem.uordblks); | |
1010 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-free=%lu", | |
ef416fc2 | 1011 | mem.fsmblks + mem.fordblks); |
4400e98d | 1012 | #endif /* HAVE_MALLINFO */ |
1013 | ||
5bd77a73 MS |
1014 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: clients=%d", |
1015 | cupsArrayCount(Clients)); | |
1016 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: jobs=%d", | |
1017 | cupsArrayCount(Jobs)); | |
1018 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: jobs-active=%d", | |
1019 | cupsArrayCount(ActiveJobs)); | |
1020 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: printers=%d", | |
1021 | cupsArrayCount(Printers)); | |
5bd77a73 | 1022 | |
757d2cad | 1023 | string_count = _cupsStrStatistics(&alloc_bytes, &total_bytes); |
5bd77a73 MS |
1024 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
1025 | "Report: stringpool-string-count=" CUPS_LLFMT, | |
1026 | CUPS_LLCAST string_count); | |
1027 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1028 | "Report: stringpool-alloc-bytes=" CUPS_LLFMT, | |
1029 | CUPS_LLCAST alloc_bytes); | |
1030 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1031 | "Report: stringpool-total-bytes=" CUPS_LLFMT, | |
4400e98d | 1032 | CUPS_LLCAST total_bytes); |
1033 | ||
5bd77a73 | 1034 | report_time = current_time; |
ef416fc2 | 1035 | } |
ef416fc2 | 1036 | |
fa73b229 | 1037 | /* |
1038 | * Handle OS-specific event notification for any events that have | |
1039 | * accumulated. Don't send these more than once a second... | |
1040 | */ | |
1041 | ||
50fe7201 | 1042 | if (LastEvent && (current_time - event_time) >= 1) |
fa73b229 | 1043 | { |
1044 | #ifdef HAVE_NOTIFY_POST | |
a41f09e2 MS |
1045 | if (LastEvent & (CUPSD_EVENT_PRINTER_ADDED | |
1046 | CUPSD_EVENT_PRINTER_DELETED | | |
1047 | CUPSD_EVENT_PRINTER_MODIFIED)) | |
fa73b229 | 1048 | { |
e00b005a | 1049 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1050 | "notify_post(\"com.apple.printerListChange\")"); |
1051 | notify_post("com.apple.printerListChange"); | |
1052 | } | |
1053 | ||
1054 | if (LastEvent & CUPSD_EVENT_PRINTER_STATE_CHANGED) | |
1055 | { | |
e00b005a | 1056 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1057 | "notify_post(\"com.apple.printerHistoryChange\")"); |
1058 | notify_post("com.apple.printerHistoryChange"); | |
1059 | } | |
1060 | ||
1061 | if (LastEvent & (CUPSD_EVENT_JOB_STATE_CHANGED | | |
1062 | CUPSD_EVENT_JOB_CONFIG_CHANGED | | |
1063 | CUPSD_EVENT_JOB_PROGRESS)) | |
1064 | { | |
e00b005a | 1065 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1066 | "notify_post(\"com.apple.jobChange\")"); |
1067 | notify_post("com.apple.jobChange"); | |
1068 | } | |
1069 | #endif /* HAVE_NOTIFY_POST */ | |
1070 | ||
1071 | /* | |
e53920b9 | 1072 | * Reset the accumulated events... |
fa73b229 | 1073 | */ |
1074 | ||
50fe7201 MS |
1075 | LastEvent = CUPSD_EVENT_NONE; |
1076 | event_time = current_time; | |
fa73b229 | 1077 | } |
ef416fc2 | 1078 | } |
1079 | ||
1080 | /* | |
1081 | * Log a message based on what happened... | |
1082 | */ | |
1083 | ||
1084 | if (stop_scheduler) | |
49d87452 | 1085 | { |
ef416fc2 | 1086 | cupsdLogMessage(CUPSD_LOG_INFO, "Scheduler shutting down normally."); |
49d87452 MS |
1087 | cupsdAddEvent(CUPSD_EVENT_SERVER_STOPPED, NULL, NULL, |
1088 | "Scheduler shutting down normally."); | |
1089 | } | |
ef416fc2 | 1090 | else |
49d87452 | 1091 | { |
ef416fc2 | 1092 | cupsdLogMessage(CUPSD_LOG_ERROR, |
1093 | "Scheduler shutting down due to program error."); | |
49d87452 MS |
1094 | cupsdAddEvent(CUPSD_EVENT_SERVER_STOPPED, NULL, NULL, |
1095 | "Scheduler shutting down due to program error."); | |
1096 | } | |
ef416fc2 | 1097 | |
1098 | /* | |
7ff4fea9 | 1099 | * Close all network clients... |
ef416fc2 | 1100 | */ |
1101 | ||
7cf5915e MS |
1102 | DoingShutdown = 1; |
1103 | ||
ef416fc2 | 1104 | cupsdStopServer(); |
1105 | ||
7ff4fea9 MS |
1106 | #ifdef HAVE_LAUNCHD |
1107 | /* | |
1108 | * Update the launchd KeepAlive file as needed... | |
1109 | */ | |
1110 | ||
1111 | if (Launchd) | |
1112 | launchd_checkout(); | |
1113 | #endif /* HAVE_LAUNCHD */ | |
1114 | ||
1115 | /* | |
1116 | * Stop all jobs... | |
1117 | */ | |
1118 | ||
bd7854cb | 1119 | cupsdFreeAllJobs(); |
ef416fc2 | 1120 | |
e1d6a774 | 1121 | #ifdef __APPLE__ |
7ff4fea9 MS |
1122 | /* |
1123 | * Stop monitoring system event monitoring... | |
1124 | */ | |
1125 | ||
1340db2d MS |
1126 | if (use_sysman) |
1127 | cupsdStopSystemMonitor(); | |
e1d6a774 | 1128 | #endif /* __APPLE__ */ |
09ec0018 | 1129 | |
f7deaa1a | 1130 | cupsdStopSelect(); |
ef416fc2 | 1131 | |
1132 | return (!stop_scheduler); | |
1133 | } | |
1134 | ||
1135 | ||
10d09e33 MS |
1136 | /* |
1137 | * 'cupsdAddString()' - Copy and add a string to an array. | |
1138 | */ | |
1139 | ||
1140 | int /* O - 1 on success, 0 on failure */ | |
1141 | cupsdAddString(cups_array_t **a, /* IO - String array */ | |
1142 | const char *s) /* I - String to copy and add */ | |
1143 | { | |
1144 | if (!*a) | |
1145 | *a = cupsArrayNew3((cups_array_func_t)strcmp, NULL, | |
1146 | (cups_ahash_func_t)NULL, 0, | |
1147 | (cups_acopy_func_t)_cupsStrAlloc, | |
1148 | (cups_afree_func_t)_cupsStrFree); | |
1149 | ||
1150 | return (cupsArrayAdd(*a, (char *)s)); | |
1151 | } | |
1152 | ||
1153 | ||
d7871c8c MS |
1154 | /* |
1155 | * 'cupsdCheckProcess()' - Tell the main loop to check for dead children. | |
1156 | */ | |
1157 | ||
1158 | void | |
1159 | cupsdCheckProcess(void) | |
1160 | { | |
1161 | /* | |
1162 | * Flag that we have dead children... | |
1163 | */ | |
1164 | ||
1165 | dead_children = 1; | |
1166 | } | |
1167 | ||
1168 | ||
10d09e33 MS |
1169 | /* |
1170 | * 'cupsdClearString()' - Clear a string. | |
1171 | */ | |
1172 | ||
1173 | void | |
1174 | cupsdClearString(char **s) /* O - String value */ | |
1175 | { | |
1176 | if (s && *s) | |
1177 | { | |
1178 | _cupsStrFree(*s); | |
1179 | *s = NULL; | |
1180 | } | |
1181 | } | |
1182 | ||
1183 | ||
10d09e33 MS |
1184 | /* |
1185 | * 'cupsdFreeStrings()' - Free an array of strings. | |
1186 | */ | |
1187 | ||
1188 | void | |
1189 | cupsdFreeStrings(cups_array_t **a) /* IO - String array */ | |
1190 | { | |
1191 | if (*a) | |
1192 | { | |
1193 | cupsArrayDelete(*a); | |
1194 | *a = NULL; | |
1195 | } | |
1196 | } | |
1197 | ||
1198 | ||
1199 | /* | |
1200 | * 'cupsdHoldSignals()' - Hold child and termination signals. | |
1201 | */ | |
1202 | ||
1203 | void | |
1204 | cupsdHoldSignals(void) | |
1205 | { | |
1206 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
1207 | sigset_t newmask; /* New POSIX signal mask */ | |
1208 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
1209 | ||
1210 | ||
1211 | holdcount ++; | |
1212 | if (holdcount > 1) | |
1213 | return; | |
1214 | ||
1215 | #ifdef HAVE_SIGSET | |
1216 | sighold(SIGTERM); | |
1217 | sighold(SIGCHLD); | |
1218 | #elif defined(HAVE_SIGACTION) | |
1219 | sigemptyset(&newmask); | |
1220 | sigaddset(&newmask, SIGTERM); | |
1221 | sigaddset(&newmask, SIGCHLD); | |
1222 | sigprocmask(SIG_BLOCK, &newmask, &holdmask); | |
1223 | #endif /* HAVE_SIGSET */ | |
1224 | } | |
1225 | ||
1226 | ||
ef416fc2 | 1227 | /* |
1228 | * 'cupsdReleaseSignals()' - Release signals for delivery. | |
1229 | */ | |
1230 | ||
1231 | void | |
1232 | cupsdReleaseSignals(void) | |
1233 | { | |
1234 | holdcount --; | |
1235 | if (holdcount > 0) | |
1236 | return; | |
1237 | ||
1238 | #ifdef HAVE_SIGSET | |
1239 | sigrelse(SIGTERM); | |
1240 | sigrelse(SIGCHLD); | |
1241 | #elif defined(HAVE_SIGACTION) | |
1242 | sigprocmask(SIG_SETMASK, &holdmask, NULL); | |
1243 | #endif /* HAVE_SIGSET */ | |
1244 | } | |
1245 | ||
1246 | ||
1247 | /* | |
1248 | * 'cupsdSetString()' - Set a string value. | |
1249 | */ | |
1250 | ||
1251 | void | |
1252 | cupsdSetString(char **s, /* O - New string */ | |
1253 | const char *v) /* I - String value */ | |
1254 | { | |
1255 | if (!s || *s == v) | |
1256 | return; | |
1257 | ||
1258 | if (*s) | |
e53920b9 | 1259 | _cupsStrFree(*s); |
ef416fc2 | 1260 | |
1261 | if (v) | |
e53920b9 | 1262 | *s = _cupsStrAlloc(v); |
ef416fc2 | 1263 | else |
1264 | *s = NULL; | |
1265 | } | |
1266 | ||
1267 | ||
1268 | /* | |
1269 | * 'cupsdSetStringf()' - Set a formatted string value. | |
1270 | */ | |
1271 | ||
1272 | void | |
1273 | cupsdSetStringf(char **s, /* O - New string */ | |
1274 | const char *f, /* I - Printf-style format string */ | |
1275 | ...) /* I - Additional args as needed */ | |
1276 | { | |
94436c5a | 1277 | char v[65536 + 64]; /* Formatting string value */ |
ef416fc2 | 1278 | va_list ap; /* Argument pointer */ |
1279 | char *olds; /* Old string */ | |
1280 | ||
1281 | ||
1282 | if (!s) | |
1283 | return; | |
1284 | ||
1285 | olds = *s; | |
1286 | ||
1287 | if (f) | |
1288 | { | |
1289 | va_start(ap, f); | |
1290 | vsnprintf(v, sizeof(v), f, ap); | |
1291 | va_end(ap); | |
1292 | ||
e53920b9 | 1293 | *s = _cupsStrAlloc(v); |
ef416fc2 | 1294 | } |
1295 | else | |
1296 | *s = NULL; | |
1297 | ||
1298 | if (olds) | |
e53920b9 | 1299 | _cupsStrFree(olds); |
ef416fc2 | 1300 | } |
1301 | ||
1302 | ||
a4d04587 | 1303 | #ifdef HAVE_LAUNCHD |
1304 | /* | |
1305 | * 'launchd_checkin()' - Check-in with launchd and collect the listening fds. | |
1306 | */ | |
1307 | ||
1308 | static void | |
1309 | launchd_checkin(void) | |
1310 | { | |
06d4e77b | 1311 | size_t i, /* Looping var */ |
f8b3a85b | 1312 | count; /* Number of listeners */ |
a4d04587 | 1313 | launch_data_t ld_msg, /* Launch data message */ |
1314 | ld_resp, /* Launch data response */ | |
1315 | ld_array, /* Launch data array */ | |
1316 | ld_sockets, /* Launch data sockets dictionary */ | |
a4d04587 | 1317 | tmp; /* Launch data */ |
1318 | cupsd_listener_t *lis; /* Listeners array */ | |
1319 | http_addr_t addr; /* Address variable */ | |
1320 | socklen_t addrlen; /* Length of address */ | |
f7deaa1a | 1321 | int fd; /* File descriptor */ |
1322 | char s[256]; /* String addresss */ | |
a4d04587 | 1323 | |
1324 | ||
1325 | cupsdLogMessage(CUPSD_LOG_DEBUG, "launchd_checkin: pid=%d", (int)getpid()); | |
1326 | ||
1327 | /* | |
1328 | * Check-in with launchd... | |
1329 | */ | |
1330 | ||
1331 | ld_msg = launch_data_new_string(LAUNCH_KEY_CHECKIN); | |
1332 | if ((ld_resp = launch_msg(ld_msg)) == NULL) | |
1333 | { | |
bd7854cb | 1334 | cupsdLogMessage(CUPSD_LOG_ERROR, |
a4d04587 | 1335 | "launchd_checkin: launch_msg(\"" LAUNCH_KEY_CHECKIN |
1336 | "\") IPC failure"); | |
1337 | exit(EXIT_FAILURE); | |
749b1e90 | 1338 | return; /* anti-compiler-warning */ |
a4d04587 | 1339 | } |
bd7854cb | 1340 | |
a4d04587 | 1341 | if (launch_data_get_type(ld_resp) == LAUNCH_DATA_ERRNO) |
1342 | { | |
1343 | errno = launch_data_get_errno(ld_resp); | |
1344 | cupsdLogMessage(CUPSD_LOG_ERROR, "launchd_checkin: Check-in failed: %s", | |
1345 | strerror(errno)); | |
1346 | exit(EXIT_FAILURE); | |
749b1e90 | 1347 | return; /* anti-compiler-warning */ |
a4d04587 | 1348 | } |
1349 | ||
a4d04587 | 1350 | /* |
1351 | * Get the sockets dictionary... | |
1352 | */ | |
1353 | ||
749b1e90 MS |
1354 | if ((ld_sockets = launch_data_dict_lookup(ld_resp, LAUNCH_JOBKEY_SOCKETS)) |
1355 | == NULL) | |
a4d04587 | 1356 | { |
1357 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1358 | "launchd_checkin: No sockets found to answer requests on!"); | |
1359 | exit(EXIT_FAILURE); | |
749b1e90 | 1360 | return; /* anti-compiler-warning */ |
a4d04587 | 1361 | } |
bd7854cb | 1362 | |
a4d04587 | 1363 | /* |
1364 | * Get the array of listener sockets... | |
1365 | */ | |
1366 | ||
749b1e90 | 1367 | if ((ld_array = launch_data_dict_lookup(ld_sockets, "Listeners")) == NULL) |
a4d04587 | 1368 | { |
1369 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1370 | "launchd_checkin: No sockets found to answer requests on!"); | |
1371 | exit(EXIT_FAILURE); | |
749b1e90 | 1372 | return; /* anti-compiler-warning */ |
a4d04587 | 1373 | } |
1374 | ||
1375 | /* | |
1376 | * Add listening fd(s) to the Listener array... | |
1377 | */ | |
1378 | ||
1379 | if (launch_data_get_type(ld_array) == LAUNCH_DATA_ARRAY) | |
1380 | { | |
f7deaa1a | 1381 | count = launch_data_array_get_count(ld_array); |
bd7854cb | 1382 | |
1383 | for (i = 0; i < count; i ++) | |
a4d04587 | 1384 | { |
1385 | /* | |
f7deaa1a | 1386 | * Get the launchd file descriptor and address... |
a4d04587 | 1387 | */ |
bd7854cb | 1388 | |
749b1e90 | 1389 | if ((tmp = launch_data_array_get_index(ld_array, i)) != NULL) |
bd7854cb | 1390 | { |
749b1e90 MS |
1391 | fd = launch_data_get_fd(tmp); |
1392 | addrlen = sizeof(addr); | |
bd7854cb | 1393 | |
749b1e90 MS |
1394 | if (getsockname(fd, (struct sockaddr *)&addr, &addrlen)) |
1395 | { | |
1396 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1397 | "launchd_checkin: Unable to get local address - %s", | |
1398 | strerror(errno)); | |
1399 | continue; | |
1400 | } | |
bd7854cb | 1401 | |
749b1e90 MS |
1402 | /* |
1403 | * Try to match the launchd socket address to one of the listeners... | |
1404 | */ | |
f7deaa1a | 1405 | |
749b1e90 MS |
1406 | for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); |
1407 | lis; | |
1408 | lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
1409 | if (httpAddrEqual(&lis->address, &addr)) | |
1410 | break; | |
a4d04587 | 1411 | |
749b1e90 MS |
1412 | /* |
1413 | * Add a new listener If there's no match... | |
1414 | */ | |
f7deaa1a | 1415 | |
749b1e90 MS |
1416 | if (lis) |
1417 | { | |
ef55b745 | 1418 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
749b1e90 MS |
1419 | "launchd_checkin: Matched existing listener %s with fd %d...", |
1420 | httpAddrString(&(lis->address), s, sizeof(s)), fd); | |
1421 | } | |
1422 | else | |
1423 | { | |
ef55b745 | 1424 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
749b1e90 MS |
1425 | "launchd_checkin: Adding new listener %s with fd %d...", |
1426 | httpAddrString(&addr, s, sizeof(s)), fd); | |
f7deaa1a | 1427 | |
749b1e90 MS |
1428 | if ((lis = calloc(1, sizeof(cupsd_listener_t))) == NULL) |
1429 | { | |
1430 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
5a662dc0 MS |
1431 | "launchd_checkin: Unable to allocate listener - " |
1432 | "%s.", strerror(errno)); | |
749b1e90 MS |
1433 | exit(EXIT_FAILURE); |
1434 | } | |
f7deaa1a | 1435 | |
749b1e90 | 1436 | cupsArrayAdd(Listeners, lis); |
bd7854cb | 1437 | |
749b1e90 MS |
1438 | memcpy(&lis->address, &addr, sizeof(lis->address)); |
1439 | } | |
1440 | ||
1441 | lis->fd = fd; | |
f7deaa1a | 1442 | |
a4d04587 | 1443 | # ifdef HAVE_SSL |
a469f8a5 | 1444 | if (httpAddrPort(&(lis->address)) == 443) |
749b1e90 | 1445 | lis->encryption = HTTP_ENCRYPT_ALWAYS; |
a4d04587 | 1446 | # endif /* HAVE_SSL */ |
749b1e90 | 1447 | } |
a4d04587 | 1448 | } |
1449 | } | |
1450 | ||
a4d04587 | 1451 | launch_data_free(ld_msg); |
1452 | launch_data_free(ld_resp); | |
1453 | } | |
1454 | ||
1455 | ||
f7deaa1a | 1456 | /* |
1457 | * 'launchd_checkout()' - Update the launchd KeepAlive file as needed. | |
1458 | */ | |
1459 | ||
1460 | static void | |
1461 | launchd_checkout(void) | |
1462 | { | |
1463 | int fd; /* File descriptor */ | |
1464 | ||
1465 | ||
1466 | /* | |
1467 | * Create or remove the launchd KeepAlive file based on whether | |
ef55b745 | 1468 | * there are active jobs, polling, browsing for remote printers or |
f7deaa1a | 1469 | * shared printers to advertise... |
1470 | */ | |
1471 | ||
a2326b5b MS |
1472 | if (cupsArrayCount(ActiveJobs) || |
1473 | (Browsing && BrowseLocalProtocols && cupsArrayCount(Printers))) | |
f7deaa1a | 1474 | { |
1475 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
5a662dc0 MS |
1476 | "Creating launchd keepalive file \"" CUPS_KEEPALIVE |
1477 | "\"..."); | |
f7deaa1a | 1478 | |
1479 | if ((fd = open(CUPS_KEEPALIVE, O_RDONLY | O_CREAT | O_EXCL, S_IRUSR)) >= 0) | |
1480 | close(fd); | |
1481 | } | |
1482 | else | |
1483 | { | |
1484 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
5a662dc0 MS |
1485 | "Removing launchd keepalive file \"" CUPS_KEEPALIVE |
1486 | "\"..."); | |
f7deaa1a | 1487 | |
1488 | unlink(CUPS_KEEPALIVE); | |
1489 | } | |
1490 | } | |
a4d04587 | 1491 | #endif /* HAVE_LAUNCHD */ |
1492 | ||
1493 | ||
ef416fc2 | 1494 | /* |
1495 | * 'parent_handler()' - Catch USR1/CHLD signals... | |
1496 | */ | |
1497 | ||
1498 | static void | |
1499 | parent_handler(int sig) /* I - Signal */ | |
1500 | { | |
1501 | /* | |
1502 | * Store the signal we got from the OS and return... | |
1503 | */ | |
1504 | ||
1505 | parent_signal = sig; | |
1506 | } | |
1507 | ||
1508 | ||
1509 | /* | |
1510 | * 'process_children()' - Process all dead children... | |
1511 | */ | |
1512 | ||
1513 | static void | |
1514 | process_children(void) | |
1515 | { | |
1516 | int status; /* Exit status of child */ | |
b9faaae1 MS |
1517 | int pid, /* Process ID of child */ |
1518 | job_id; /* Job ID of child */ | |
ef416fc2 | 1519 | cupsd_job_t *job; /* Current job */ |
1520 | int i; /* Looping var */ | |
e00b005a | 1521 | char name[1024]; /* Process name */ |
dcb445bc | 1522 | const char *type; /* Type of program */ |
ef416fc2 | 1523 | |
1524 | ||
1525 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "process_children()"); | |
1526 | ||
1527 | /* | |
1528 | * Reset the dead_children flag... | |
1529 | */ | |
1530 | ||
1531 | dead_children = 0; | |
1532 | ||
1533 | /* | |
1534 | * Collect the exit status of some children... | |
1535 | */ | |
1536 | ||
1537 | #ifdef HAVE_WAITPID | |
1538 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) | |
1539 | #elif defined(HAVE_WAIT3) | |
1540 | while ((pid = wait3(&status, WNOHANG, NULL)) > 0) | |
1541 | #else | |
1542 | if ((pid = wait(&status)) > 0) | |
1543 | #endif /* HAVE_WAITPID */ | |
1544 | { | |
ef416fc2 | 1545 | /* |
745129be | 1546 | * Collect the name of the process that finished... |
ef416fc2 | 1547 | */ |
1548 | ||
b9faaae1 | 1549 | cupsdFinishProcess(pid, name, sizeof(name), &job_id); |
e00b005a | 1550 | |
ef416fc2 | 1551 | /* |
1552 | * Delete certificates for CGI processes... | |
1553 | */ | |
1554 | ||
1555 | if (pid) | |
1556 | cupsdDeleteCert(pid); | |
1557 | ||
1558 | /* | |
b9faaae1 | 1559 | * Handle completed job filters... |
ef416fc2 | 1560 | */ |
1561 | ||
dcb445bc MS |
1562 | if (job_id > 0) |
1563 | job = cupsdFindJob(job_id); | |
1564 | else | |
1565 | job = NULL; | |
1566 | ||
1567 | if (job) | |
b9faaae1 MS |
1568 | { |
1569 | for (i = 0; job->filters[i]; i ++) | |
1570 | if (job->filters[i] == pid) | |
1571 | break; | |
1572 | ||
1573 | if (job->filters[i] || job->backend == pid) | |
ef416fc2 | 1574 | { |
b9faaae1 MS |
1575 | /* |
1576 | * OK, this process has gone away; what's left? | |
1577 | */ | |
1578 | ||
1579 | if (job->filters[i]) | |
dcb445bc | 1580 | { |
b9faaae1 | 1581 | job->filters[i] = -pid; |
dcb445bc MS |
1582 | type = "Filter"; |
1583 | } | |
b9faaae1 | 1584 | else |
dcb445bc | 1585 | { |
b9faaae1 | 1586 | job->backend = -pid; |
dcb445bc MS |
1587 | type = "Backend"; |
1588 | } | |
ef416fc2 | 1589 | |
b9faaae1 | 1590 | if (status && status != SIGTERM && status != SIGKILL && |
f3c17241 | 1591 | status != SIGPIPE) |
ef416fc2 | 1592 | { |
1593 | /* | |
b9faaae1 MS |
1594 | * An error occurred; save the exit status so we know to stop |
1595 | * the printer or cancel the job when all of the filters finish... | |
1596 | * | |
1597 | * A negative status indicates that the backend failed and the | |
1598 | * printer needs to be stopped. | |
f3c17241 MS |
1599 | * |
1600 | * In order to preserve the most serious status, we always log | |
1601 | * when a process dies due to a signal (e.g. SIGABRT, SIGSEGV, | |
1602 | * and SIGBUS) and prefer to log the backend exit status over a | |
1603 | * filter's. | |
ef416fc2 | 1604 | */ |
1605 | ||
f3c17241 MS |
1606 | int old_status = abs(job->status); |
1607 | ||
1608 | if (WIFSIGNALED(status) || /* This process crashed, or */ | |
1609 | !job->status || /* No process had a status, or */ | |
1610 | (!job->filters[i] && WIFEXITED(old_status))) | |
1611 | { /* Backend and filter didn't crash */ | |
1612 | if (job->filters[i]) | |
1613 | job->status = status; /* Filter failed */ | |
1614 | else | |
1615 | job->status = -status; /* Backend failed */ | |
1616 | } | |
ef416fc2 | 1617 | |
f11a948a | 1618 | if (job->state_value == IPP_JOB_PROCESSING && |
dcb445bc MS |
1619 | job->status_level > CUPSD_LOG_ERROR && |
1620 | (job->filters[i] || !WIFEXITED(status))) | |
ef416fc2 | 1621 | { |
f11a948a MS |
1622 | char message[1024]; /* New printer-state-message */ |
1623 | ||
1624 | ||
b9faaae1 | 1625 | job->status_level = CUPSD_LOG_ERROR; |
ef416fc2 | 1626 | |
dcb445bc | 1627 | snprintf(message, sizeof(message), "%s failed", type); |
f11a948a | 1628 | |
e07d4801 MS |
1629 | if (job->printer) |
1630 | { | |
f11a948a MS |
1631 | strlcpy(job->printer->state_message, message, |
1632 | sizeof(job->printer->state_message)); | |
e07d4801 MS |
1633 | } |
1634 | ||
1635 | if (!job->attrs) | |
1636 | cupsdLoadJob(job); | |
e00b005a | 1637 | |
e07d4801 | 1638 | if (!job->printer_message && job->attrs) |
e00b005a | 1639 | { |
b9faaae1 MS |
1640 | if ((job->printer_message = |
1641 | ippFindAttribute(job->attrs, "job-printer-state-message", | |
1642 | IPP_TAG_TEXT)) == NULL) | |
1643 | job->printer_message = ippAddString(job->attrs, IPP_TAG_JOB, | |
1644 | IPP_TAG_TEXT, | |
1645 | "job-printer-state-message", | |
5a662dc0 | 1646 | NULL, NULL); |
e00b005a | 1647 | } |
b9faaae1 | 1648 | |
e07d4801 MS |
1649 | if (job->printer_message) |
1650 | cupsdSetString(&(job->printer_message->values[0].string.text), | |
f11a948a | 1651 | message); |
ef416fc2 | 1652 | } |
b9faaae1 | 1653 | } |
ef416fc2 | 1654 | |
b9faaae1 MS |
1655 | /* |
1656 | * If this is not the last file in a job, see if all of the | |
1657 | * filters are done, and if so move to the next file. | |
1658 | */ | |
ef416fc2 | 1659 | |
5a662dc0 | 1660 | if (job->current_file < job->num_files && job->printer) |
b9faaae1 MS |
1661 | { |
1662 | for (i = 0; job->filters[i] < 0; i ++); | |
ef416fc2 | 1663 | |
82f97232 MS |
1664 | if (!job->filters[i] && |
1665 | (!job->printer->pc || !job->printer->pc->single_file || | |
1666 | job->backend <= 0)) | |
b9faaae1 MS |
1667 | { |
1668 | /* | |
1669 | * Process the next file... | |
1670 | */ | |
ef416fc2 | 1671 | |
b9faaae1 | 1672 | cupsdContinueJob(job); |
ef416fc2 | 1673 | } |
ef416fc2 | 1674 | } |
5a662dc0 | 1675 | else if (job->state_value >= IPP_JOB_CANCELED) |
7a0cbd5e MS |
1676 | { |
1677 | /* | |
1678 | * Remove the job from the active list if there are no processes still | |
1679 | * running for it... | |
1680 | */ | |
1681 | ||
1682 | for (i = 0; job->filters[i] < 0; i++); | |
1683 | ||
1684 | if (!job->filters[i] && job->backend <= 0) | |
1685 | cupsArrayRemove(ActiveJobs, job); | |
1686 | } | |
ef416fc2 | 1687 | } |
b9faaae1 | 1688 | } |
3dfe78b3 MS |
1689 | |
1690 | /* | |
745129be MS |
1691 | * Show the exit status as needed, ignoring SIGTERM and SIGKILL errors |
1692 | * since they come when we kill/end a process... | |
3dfe78b3 MS |
1693 | */ |
1694 | ||
745129be MS |
1695 | if (status == SIGTERM || status == SIGKILL) |
1696 | { | |
dcb445bc MS |
1697 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1698 | "PID %d (%s) was terminated normally with signal %d.", pid, | |
1699 | name, status); | |
745129be | 1700 | } |
5a6b583a MS |
1701 | else if (status == SIGPIPE) |
1702 | { | |
dcb445bc MS |
1703 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1704 | "PID %d (%s) did not catch or ignore signal %d.", pid, name, | |
1705 | status); | |
5a6b583a | 1706 | } |
745129be | 1707 | else if (status) |
3dfe78b3 MS |
1708 | { |
1709 | if (WIFEXITED(status)) | |
88f9aafc MS |
1710 | { |
1711 | int code = WEXITSTATUS(status); /* Exit code */ | |
1712 | ||
1713 | if (code > 100) | |
dcb445bc MS |
1714 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1715 | "PID %d (%s) stopped with status %d (%s)", pid, name, | |
1716 | code, strerror(code - 100)); | |
88f9aafc | 1717 | else |
dcb445bc MS |
1718 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1719 | "PID %d (%s) stopped with status %d.", pid, name, code); | |
88f9aafc | 1720 | } |
3dfe78b3 | 1721 | else |
dcb445bc MS |
1722 | cupsdLogJob(job, CUPSD_LOG_DEBUG, "PID %d (%s) crashed on signal %d.", |
1723 | pid, name, WTERMSIG(status)); | |
3dfe78b3 MS |
1724 | |
1725 | if (LogLevel < CUPSD_LOG_DEBUG) | |
dcb445bc MS |
1726 | cupsdLogJob(job, CUPSD_LOG_INFO, |
1727 | "Hint: Try setting the LogLevel to \"debug\" to find out " | |
1728 | "more."); | |
3dfe78b3 MS |
1729 | } |
1730 | else | |
dcb445bc MS |
1731 | cupsdLogJob(job, CUPSD_LOG_DEBUG, "PID %d (%s) exited with no errors.", |
1732 | pid, name); | |
ef416fc2 | 1733 | } |
dfd5680b MS |
1734 | |
1735 | /* | |
1736 | * If wait*() is interrupted by a signal, tell main() to call us again... | |
1737 | */ | |
1738 | ||
1739 | if (pid < 0 && errno == EINTR) | |
1740 | dead_children = 1; | |
ef416fc2 | 1741 | } |
1742 | ||
1743 | ||
ef416fc2 | 1744 | /* |
1745 | * 'select_timeout()' - Calculate the select timeout value. | |
1746 | * | |
1747 | */ | |
1748 | ||
1749 | static long /* O - Number of seconds */ | |
bd7854cb | 1750 | select_timeout(int fds) /* I - Number of descriptors returned */ |
ef416fc2 | 1751 | { |
ef416fc2 | 1752 | long timeout; /* Timeout for select */ |
1753 | time_t now; /* Current time */ | |
1754 | cupsd_client_t *con; /* Client information */ | |
ef416fc2 | 1755 | cupsd_job_t *job; /* Job information */ |
1756 | cupsd_subscription_t *sub; /* Subscription information */ | |
1757 | const char *why; /* Debugging aid */ | |
1758 | ||
1759 | ||
82cc1f9a MS |
1760 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout: JobHistoryUpdate=%ld", |
1761 | (long)JobHistoryUpdate); | |
1762 | ||
ef416fc2 | 1763 | /* |
1764 | * Check to see if any of the clients have pending data to be | |
1765 | * processed; if so, the timeout should be 0... | |
1766 | */ | |
1767 | ||
bd7854cb | 1768 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
1769 | con; | |
1770 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 1771 | if (con->http.used > 0) |
1772 | return (0); | |
1773 | ||
1774 | /* | |
f7deaa1a | 1775 | * If select has been active in the last second (fds > 0) or we have |
ef416fc2 | 1776 | * many resources in use then don't bother trying to optimize the |
1777 | * timeout, just make it 1 second. | |
1778 | */ | |
1779 | ||
f7deaa1a | 1780 | if (fds > 0 || cupsArrayCount(Clients) > 50) |
ef416fc2 | 1781 | return (1); |
1782 | ||
1783 | /* | |
1784 | * Otherwise, check all of the possible events that we need to wake for... | |
1785 | */ | |
1786 | ||
1787 | now = time(NULL); | |
1788 | timeout = now + 86400; /* 86400 == 1 day */ | |
1789 | why = "do nothing"; | |
1790 | ||
e6013cfa MS |
1791 | #ifdef __APPLE__ |
1792 | /* | |
1793 | * When going to sleep, wake up to cancel jobs that don't complete in time. | |
1794 | */ | |
1795 | ||
1796 | if (SleepJobs > 0 && SleepJobs < timeout) | |
1797 | { | |
1798 | timeout = SleepJobs; | |
1799 | why = "cancel jobs before sleeping"; | |
1800 | } | |
1801 | #endif /* __APPLE__ */ | |
1802 | ||
76cd9e37 MS |
1803 | /* |
1804 | * Check whether we are accepting new connections... | |
1805 | */ | |
1806 | ||
1807 | if (ListeningPaused > 0 && cupsArrayCount(Clients) < MaxClients && | |
1808 | ListeningPaused < timeout) | |
1809 | { | |
1810 | if (ListeningPaused <= now) | |
1811 | timeout = now; | |
1812 | else | |
1813 | timeout = ListeningPaused; | |
1814 | ||
1815 | why = "resume listening"; | |
1816 | } | |
1817 | ||
ef416fc2 | 1818 | /* |
1819 | * Check the activity and close old clients... | |
1820 | */ | |
1821 | ||
bd7854cb | 1822 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
1823 | con; | |
1824 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 1825 | if ((con->http.activity + Timeout) < timeout) |
1826 | { | |
1827 | timeout = con->http.activity + Timeout; | |
1828 | why = "timeout a client connection"; | |
1829 | } | |
1830 | ||
3dfe78b3 | 1831 | /* |
bf3816c7 | 1832 | * Write out changes to configuration and state files... |
3dfe78b3 MS |
1833 | */ |
1834 | ||
1835 | if (DirtyCleanTime && timeout > DirtyCleanTime) | |
1836 | { | |
1837 | timeout = DirtyCleanTime; | |
1838 | why = "write dirty config/state files"; | |
1839 | } | |
1840 | ||
ef416fc2 | 1841 | /* |
82cc1f9a | 1842 | * Check for any job activity... |
ef416fc2 | 1843 | */ |
1844 | ||
82cc1f9a MS |
1845 | if (JobHistoryUpdate && timeout > JobHistoryUpdate) |
1846 | { | |
1847 | timeout = JobHistoryUpdate; | |
1848 | why = "update job history"; | |
1849 | } | |
1850 | ||
238c3832 MS |
1851 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); |
1852 | job; | |
1853 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
ef416fc2 | 1854 | { |
82cc1f9a MS |
1855 | if (job->cancel_time && job->cancel_time < timeout) |
1856 | { | |
1857 | timeout = job->cancel_time; | |
1858 | why = "cancel stuck jobs"; | |
1859 | } | |
1860 | ||
238c3832 MS |
1861 | if (job->kill_time && job->kill_time < timeout) |
1862 | { | |
1863 | timeout = job->kill_time; | |
1864 | why = "kill unresponsive jobs"; | |
1865 | } | |
82cc1f9a MS |
1866 | |
1867 | if (job->state_value == IPP_JOB_HELD && job->hold_until < timeout) | |
238c3832 MS |
1868 | { |
1869 | timeout = job->hold_until; | |
1870 | why = "release held jobs"; | |
1871 | } | |
82cc1f9a MS |
1872 | |
1873 | if (job->state_value == IPP_JOB_PENDING && timeout > (now + 10)) | |
238c3832 MS |
1874 | { |
1875 | timeout = now + 10; | |
1876 | why = "start pending jobs"; | |
1877 | break; | |
1878 | } | |
ef416fc2 | 1879 | } |
1880 | ||
1881 | #ifdef HAVE_MALLINFO | |
1882 | /* | |
1883 | * Log memory usage every minute... | |
1884 | */ | |
1885 | ||
1886 | if (LogLevel >= CUPSD_LOG_DEBUG && (mallinfo_time + 60) < timeout) | |
1887 | { | |
1888 | timeout = mallinfo_time + 60; | |
1889 | why = "display memory usage"; | |
1890 | } | |
1891 | #endif /* HAVE_MALLINFO */ | |
1892 | ||
ef416fc2 | 1893 | /* |
1894 | * Expire subscriptions as needed... | |
1895 | */ | |
1896 | ||
1897 | for (sub = (cupsd_subscription_t *)cupsArrayFirst(Subscriptions); | |
1898 | sub; | |
1899 | sub = (cupsd_subscription_t *)cupsArrayNext(Subscriptions)) | |
bd7854cb | 1900 | if (!sub->job && sub->expire && sub->expire < timeout) |
ef416fc2 | 1901 | { |
1902 | timeout = sub->expire; | |
1903 | why = "expire subscription"; | |
1904 | } | |
1905 | ||
1906 | /* | |
dcb445bc MS |
1907 | * Adjust from absolute to relative time. We add 1 second to the timeout since |
1908 | * events occur after the timeout expires, and limit the timeout to 86400 | |
1909 | * seconds (1 day) to avoid select() timeout limits present on some operating | |
ef416fc2 | 1910 | * systems... |
1911 | */ | |
1912 | ||
1913 | timeout = timeout - now + 1; | |
1914 | ||
1915 | if (timeout < 1) | |
1916 | timeout = 1; | |
1917 | else if (timeout > 86400) | |
1918 | timeout = 86400; | |
1919 | ||
1920 | /* | |
1921 | * Log and return the timeout value... | |
1922 | */ | |
1923 | ||
f7deaa1a | 1924 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout(%d): %ld seconds to %s", |
1925 | fds, timeout, why); | |
ef416fc2 | 1926 | |
1927 | return (timeout); | |
1928 | } | |
1929 | ||
1930 | ||
e6013cfa MS |
1931 | /* |
1932 | * 'sigchld_handler()' - Handle 'child' signals from old processes. | |
1933 | */ | |
1934 | ||
1935 | static void | |
1936 | sigchld_handler(int sig) /* I - Signal number */ | |
1937 | { | |
1938 | (void)sig; | |
1939 | ||
1940 | /* | |
1941 | * Flag that we have dead children... | |
1942 | */ | |
1943 | ||
1944 | dead_children = 1; | |
1945 | ||
1946 | /* | |
1947 | * Reset the signal handler as needed... | |
1948 | */ | |
1949 | ||
1950 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
1951 | signal(SIGCLD, sigchld_handler); | |
1952 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
1953 | } | |
1954 | ||
1955 | ||
1956 | /* | |
1957 | * 'sighup_handler()' - Handle 'hangup' signals to reconfigure the scheduler. | |
1958 | */ | |
1959 | ||
1960 | static void | |
1961 | sighup_handler(int sig) /* I - Signal number */ | |
1962 | { | |
1963 | (void)sig; | |
1964 | ||
1965 | NeedReload = RELOAD_ALL; | |
1966 | ReloadTime = time(NULL); | |
1967 | ||
1968 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
1969 | signal(SIGHUP, sighup_handler); | |
1970 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
1971 | } | |
1972 | ||
1973 | ||
1974 | /* | |
1975 | * 'sigterm_handler()' - Handle 'terminate' signals that stop the scheduler. | |
1976 | */ | |
1977 | ||
1978 | static void | |
1979 | sigterm_handler(int sig) /* I - Signal number */ | |
1980 | { | |
1981 | (void)sig; /* remove compiler warnings... */ | |
1982 | ||
1983 | /* | |
1984 | * Flag that we should stop and return... | |
1985 | */ | |
1986 | ||
1987 | stop_scheduler = 1; | |
1988 | } | |
1989 | ||
1990 | ||
ef416fc2 | 1991 | /* |
1992 | * 'usage()' - Show scheduler usage. | |
1993 | */ | |
1994 | ||
1995 | static void | |
a4d04587 | 1996 | usage(int status) /* O - Exit status */ |
ef416fc2 | 1997 | { |
0837b7e8 MS |
1998 | FILE *fp = status ? stderr : stdout; /* Output file */ |
1999 | ||
2000 | ||
2001 | _cupsLangPuts(fp, _("Usage: cupsd [options]")); | |
2002 | _cupsLangPuts(fp, _("Options:")); | |
f3c17241 | 2003 | _cupsLangPuts(fp, _(" -c cupsd.conf Set cupsd.conf file to use.")); |
84315f46 MS |
2004 | _cupsLangPuts(fp, _(" -f Run in the foreground.")); |
2005 | _cupsLangPuts(fp, _(" -F Run in the foreground but " | |
2006 | "detach from console.")); | |
2007 | _cupsLangPuts(fp, _(" -h Show this usage message.")); | |
2008 | _cupsLangPuts(fp, _(" -l Run cupsd from launchd(8).")); | |
2009 | _cupsLangPuts(fp, _(" -t Test the configuration " | |
0837b7e8 | 2010 | "file.")); |
0837b7e8 | 2011 | |
a4d04587 | 2012 | exit(status); |
ef416fc2 | 2013 | } |
2014 | ||
2015 | ||
2016 | /* | |
71f63681 | 2017 | * End of "$Id: main.c 11721 2014-03-21 18:18:56Z msweet $". |
ef416fc2 | 2018 | */ |