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Commit | Line | Data |
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ef416fc2 | 1 | /* |
f2d18633 | 2 | * "$Id$" |
ef416fc2 | 3 | * |
581dae2d | 4 | * Main loop for the CUPS scheduler. |
ef416fc2 | 5 | * |
7e86f2f6 | 6 | * Copyright 2007-2014 by Apple Inc. |
581dae2d | 7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 8 | * |
581dae2d MS |
9 | * These coded instructions, statements, and computer programs are the |
10 | * property of Apple Inc. and are protected by Federal copyright | |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * "LICENSE" which should have been included with this file. If this | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 14 | */ |
15 | ||
16 | /* | |
17 | * Include necessary headers... | |
18 | */ | |
19 | ||
20 | #define _MAIN_C_ | |
21 | #include "cupsd.h" | |
22 | #include <sys/resource.h> | |
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 | |
3dd9c340 MS |
50 | #ifdef HAVE_SYS_PARAM_H |
51 | # include <sys/param.h> | |
52 | #endif /* HAVE_SYS_PARAM_H */ | |
53 | ||
ef416fc2 | 54 | |
55 | /* | |
56 | * Local functions... | |
57 | */ | |
58 | ||
a4d04587 | 59 | #ifdef HAVE_LAUNCHD |
411affcf | 60 | static void launchd_checkin(void); |
f7deaa1a | 61 | static void launchd_checkout(void); |
a4d04587 | 62 | #endif /* HAVE_LAUNCHD */ |
411affcf | 63 | static void parent_handler(int sig); |
64 | static void process_children(void); | |
65 | static void sigchld_handler(int sig); | |
66 | static void sighup_handler(int sig); | |
67 | static void sigterm_handler(int sig); | |
68 | static long select_timeout(int fds); | |
85dda01c | 69 | static void usage(int status) __attribute__((noreturn)); |
ef416fc2 | 70 | |
71 | ||
72 | /* | |
73 | * Local globals... | |
74 | */ | |
75 | ||
411affcf | 76 | static int parent_signal = 0; |
77 | /* Set to signal number from child */ | |
78 | static int holdcount = 0; /* Number of times "hold" was called */ | |
ef416fc2 | 79 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
411affcf | 80 | static sigset_t holdmask; /* Old POSIX signal mask */ |
ef416fc2 | 81 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ |
411affcf | 82 | static int dead_children = 0; |
83 | /* Dead children? */ | |
84 | static int stop_scheduler = 0; | |
85 | /* Should the scheduler stop? */ | |
86 | ||
ef416fc2 | 87 | |
88 | /* | |
89 | * 'main()' - Main entry for the CUPS scheduler. | |
90 | */ | |
91 | ||
92 | int /* O - Exit status */ | |
bd7854cb | 93 | main(int argc, /* I - Number of command-line args */ |
ef416fc2 | 94 | char *argv[]) /* I - Command-line arguments */ |
95 | { | |
96 | int i; /* Looping var */ | |
97 | char *opt; /* Option character */ | |
98 | int fg; /* Run in the foreground */ | |
bd7854cb | 99 | int fds; /* Number of ready descriptors */ |
ef416fc2 | 100 | cupsd_client_t *con; /* Current client */ |
101 | cupsd_job_t *job; /* Current job */ | |
102 | cupsd_listener_t *lis; /* Current listener */ | |
103 | time_t current_time, /* Current time */ | |
a4d04587 | 104 | activity, /* Client activity timer */ |
ef416fc2 | 105 | senddoc_time, /* Send-Document time */ |
411affcf | 106 | expire_time, /* Subscription expire time */ |
50fe7201 | 107 | report_time, /* Malloc/client/job report time */ |
5a662dc0 | 108 | event_time; /* Last event notification time */ |
f7deaa1a | 109 | long timeout; /* Timeout for cupsdDoSelect() */ |
ef416fc2 | 110 | struct rlimit limit; /* Runtime limit */ |
111 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
112 | struct sigaction action; /* Actions for POSIX signals */ | |
113 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
68b10830 MS |
114 | int run_as_child = 0; |
115 | /* Needed for background fork/exec */ | |
a41f09e2 | 116 | #ifdef __APPLE__ |
68b10830 | 117 | int use_sysman = !getuid(); |
d7871c8c | 118 | /* Use system management functions? */ |
a4924f6c MS |
119 | #else |
120 | time_t netif_time = 0; /* Time since last network update */ | |
a41f09e2 | 121 | #endif /* __APPLE__ */ |
a4d04587 | 122 | #if HAVE_LAUNCHD |
4400e98d | 123 | int launchd_idle_exit; |
a4d04587 | 124 | /* Idle exit on select timeout? */ |
125 | #endif /* HAVE_LAUNCHD */ | |
ef416fc2 | 126 | |
127 | ||
db1f069b MS |
128 | #ifdef HAVE_GETEUID |
129 | /* | |
130 | * Check for setuid invocation, which we do not support! | |
131 | */ | |
132 | ||
133 | if (getuid() != geteuid()) | |
134 | { | |
4d301e69 | 135 | fputs("cupsd: Cannot run as a setuid program\n", stderr); |
db1f069b MS |
136 | return (1); |
137 | } | |
138 | #endif /* HAVE_GETEUID */ | |
139 | ||
ef416fc2 | 140 | /* |
141 | * Check for command-line arguments... | |
142 | */ | |
143 | ||
4400e98d | 144 | fg = 0; |
ef416fc2 | 145 | |
09a101d6 | 146 | #ifdef HAVE_LAUNCHD |
147 | if (getenv("CUPSD_LAUNCHD")) | |
148 | { | |
149 | Launchd = 1; | |
150 | fg = 1; | |
151 | } | |
152 | #endif /* HAVE_LAUNCHD */ | |
153 | ||
ef416fc2 | 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; | |
161 | fg = -1; | |
a41f09e2 | 162 | |
ef416fc2 | 163 | case 'c' : /* Configuration file */ |
164 | i ++; | |
165 | if (i >= argc) | |
a4d04587 | 166 | { |
167 | _cupsLangPuts(stderr, _("cupsd: Expected config filename " | |
0837b7e8 | 168 | "after \"-c\" option.")); |
a4d04587 | 169 | usage(1); |
170 | } | |
ef416fc2 | 171 | |
172 | if (argv[i][0] == '/') | |
173 | { | |
174 | /* | |
175 | * Absolute directory... | |
176 | */ | |
177 | ||
178 | cupsdSetString(&ConfigurationFile, argv[i]); | |
179 | } | |
180 | else | |
181 | { | |
182 | /* | |
183 | * Relative directory... | |
184 | */ | |
185 | ||
09ec0018 | 186 | char *current; /* Current directory */ |
ef416fc2 | 187 | |
09ec0018 | 188 | /* |
189 | * Allocate a buffer for the current working directory to | |
190 | * reduce run-time stack usage; this approximates the | |
191 | * behavior of some implementations of getcwd() when they | |
192 | * are passed a NULL pointer. | |
193 | */ | |
194 | ||
91c84a35 MS |
195 | if ((current = malloc(1024)) == NULL) |
196 | { | |
197 | _cupsLangPuts(stderr, | |
0837b7e8 | 198 | _("cupsd: Unable to get current directory.")); |
91c84a35 MS |
199 | return (1); |
200 | } | |
201 | ||
202 | if (!getcwd(current, 1024)) | |
203 | { | |
204 | _cupsLangPuts(stderr, | |
0837b7e8 | 205 | _("cupsd: Unable to get current directory.")); |
91c84a35 MS |
206 | free(current); |
207 | return (1); | |
208 | } | |
09ec0018 | 209 | |
ef416fc2 | 210 | cupsdSetStringf(&ConfigurationFile, "%s/%s", current, argv[i]); |
09ec0018 | 211 | free(current); |
ef416fc2 | 212 | } |
213 | break; | |
214 | ||
215 | case 'f' : /* Run in foreground... */ | |
216 | fg = 1; | |
217 | break; | |
218 | ||
bd7854cb | 219 | case 'F' : /* Run in foreground, but disconnect from terminal... */ |
ef416fc2 | 220 | fg = -1; |
221 | break; | |
222 | ||
a4d04587 | 223 | case 'h' : /* Show usage/help */ |
224 | usage(0); | |
225 | break; | |
226 | ||
227 | case 'l' : /* Started by launchd... */ | |
228 | #ifdef HAVE_LAUNCHD | |
4400e98d | 229 | Launchd = 1; |
a4d04587 | 230 | fg = 1; |
231 | #else | |
232 | _cupsLangPuts(stderr, _("cupsd: launchd(8) support not compiled " | |
0837b7e8 | 233 | "in, running in normal mode.")); |
a4d04587 | 234 | fg = 0; |
235 | #endif /* HAVE_LAUNCHD */ | |
236 | break; | |
237 | ||
a74454a7 | 238 | case 'p' : /* Stop immediately for profiling */ |
5a662dc0 MS |
239 | fputs("cupsd: -p (startup profiling) is for internal testing " |
240 | "use only!\n", stderr); | |
a74454a7 | 241 | stop_scheduler = 1; |
242 | fg = 1; | |
243 | break; | |
244 | ||
1340db2d | 245 | case 'P' : /* Disable security profiles */ |
5a662dc0 MS |
246 | fputs("cupsd: -P (disable security profiles) is for internal " |
247 | "testing use only!\n", stderr); | |
1340db2d MS |
248 | UseProfiles = 0; |
249 | break; | |
250 | ||
c41769ff MS |
251 | case 's' : /* Set cups-files.conf location */ |
252 | i ++; | |
253 | if (i >= argc) | |
254 | { | |
255 | _cupsLangPuts(stderr, _("cupsd: Expected cups-files.conf " | |
256 | "filename after \"-s\" option.")); | |
257 | usage(1); | |
258 | } | |
259 | ||
260 | if (argv[i][0] != '/') | |
261 | { | |
262 | /* | |
263 | * Relative filename not allowed... | |
264 | */ | |
265 | ||
266 | _cupsLangPuts(stderr, _("cupsd: Relative cups-files.conf " | |
267 | "filename not allowed.")); | |
268 | usage(1); | |
269 | } | |
270 | ||
271 | cupsdSetString(&CupsFilesFile, argv[i]); | |
272 | break; | |
273 | ||
68b10830 MS |
274 | #ifdef __APPLE__ |
275 | case 'S' : /* Disable system management functions */ | |
5a662dc0 MS |
276 | fputs("cupsd: -S (disable system management) for internal " |
277 | "testing use only!\n", stderr); | |
68b10830 MS |
278 | use_sysman = 0; |
279 | break; | |
280 | #endif /* __APPLE__ */ | |
281 | ||
2e4ff8af MS |
282 | case 't' : /* Test the cupsd.conf file... */ |
283 | TestConfigFile = 1; | |
284 | fg = 1; | |
285 | break; | |
286 | ||
ef416fc2 | 287 | default : /* Unknown option */ |
a4d04587 | 288 | _cupsLangPrintf(stderr, _("cupsd: Unknown option \"%c\" - " |
0837b7e8 | 289 | "aborting."), *opt); |
a4d04587 | 290 | usage(1); |
ef416fc2 | 291 | break; |
292 | } | |
293 | else | |
294 | { | |
0837b7e8 | 295 | _cupsLangPrintf(stderr, _("cupsd: Unknown argument \"%s\" - aborting."), |
a4d04587 | 296 | argv[i]); |
297 | usage(1); | |
ef416fc2 | 298 | } |
299 | ||
300 | if (!ConfigurationFile) | |
301 | cupsdSetString(&ConfigurationFile, CUPS_SERVERROOT "/cupsd.conf"); | |
302 | ||
cb7f98ee MS |
303 | if (!CupsFilesFile) |
304 | { | |
305 | char *filename, /* Copy of cupsd.conf filename */ | |
306 | *slash; /* Final slash in cupsd.conf filename */ | |
307 | size_t len; /* Size of buffer */ | |
308 | ||
309 | len = strlen(ConfigurationFile) + 15; | |
310 | if ((filename = malloc(len)) == NULL) | |
311 | { | |
312 | _cupsLangPrintf(stderr, | |
313 | _("cupsd: Unable to get path to " | |
314 | "cups-files.conf file.")); | |
315 | return (1); | |
316 | } | |
317 | ||
318 | strlcpy(filename, ConfigurationFile, len); | |
319 | if ((slash = strrchr(filename, '/')) == NULL) | |
320 | { | |
321 | _cupsLangPrintf(stderr, | |
322 | _("cupsd: Unable to get path to " | |
323 | "cups-files.conf file.")); | |
324 | return (1); | |
325 | } | |
326 | ||
7e86f2f6 | 327 | strlcpy(slash, "/cups-files.conf", len - (size_t)(slash - filename)); |
cb7f98ee MS |
328 | cupsdSetString(&CupsFilesFile, filename); |
329 | free(filename); | |
330 | } | |
331 | ||
ef416fc2 | 332 | /* |
333 | * If the user hasn't specified "-f", run in the background... | |
334 | */ | |
335 | ||
336 | if (!fg) | |
337 | { | |
338 | /* | |
339 | * Setup signal handlers for the parent... | |
340 | */ | |
341 | ||
342 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
343 | sigset(SIGUSR1, parent_handler); | |
344 | sigset(SIGCHLD, parent_handler); | |
345 | ||
346 | sigset(SIGHUP, SIG_IGN); | |
347 | #elif defined(HAVE_SIGACTION) | |
348 | memset(&action, 0, sizeof(action)); | |
349 | sigemptyset(&action.sa_mask); | |
350 | sigaddset(&action.sa_mask, SIGUSR1); | |
351 | action.sa_handler = parent_handler; | |
352 | sigaction(SIGUSR1, &action, NULL); | |
353 | sigaction(SIGCHLD, &action, NULL); | |
354 | ||
355 | sigemptyset(&action.sa_mask); | |
356 | action.sa_handler = SIG_IGN; | |
357 | sigaction(SIGHUP, &action, NULL); | |
358 | #else | |
359 | signal(SIGUSR1, parent_handler); | |
360 | signal(SIGCLD, parent_handler); | |
361 | ||
362 | signal(SIGHUP, SIG_IGN); | |
363 | #endif /* HAVE_SIGSET */ | |
364 | ||
365 | if (fork() > 0) | |
366 | { | |
367 | /* | |
368 | * OK, wait for the child to startup and send us SIGUSR1 or to crash | |
369 | * and the OS send us SIGCHLD... We also need to ignore SIGHUP which | |
370 | * might be sent by the init script to restart the scheduler... | |
371 | */ | |
372 | ||
373 | for (; parent_signal == 0;) | |
374 | sleep(1); | |
375 | ||
376 | if (parent_signal == SIGUSR1) | |
377 | return (0); | |
378 | ||
379 | if (wait(&i) < 0) | |
380 | { | |
381 | perror("cupsd"); | |
382 | return (1); | |
383 | } | |
384 | else if (WIFEXITED(i)) | |
385 | { | |
4d301e69 | 386 | fprintf(stderr, "cupsd: Child exited with status %d\n", |
bd7854cb | 387 | WEXITSTATUS(i)); |
ef416fc2 | 388 | return (2); |
389 | } | |
390 | else | |
391 | { | |
4d301e69 | 392 | fprintf(stderr, "cupsd: Child exited on signal %d\n", WTERMSIG(i)); |
ef416fc2 | 393 | return (3); |
394 | } | |
395 | } | |
a41f09e2 | 396 | |
3dd9c340 | 397 | #if defined(__OpenBSD__) && OpenBSD < 201211 |
68b10830 MS |
398 | /* |
399 | * Call _thread_sys_closefrom() so the child process doesn't reset the | |
400 | * parent's file descriptors to be blocking. This is a workaround for a | |
3dd9c340 | 401 | * limitation of userland libpthread on older versions of OpenBSD. |
68b10830 | 402 | */ |
ef55b745 | 403 | |
68b10830 | 404 | _thread_sys_closefrom(0); |
3dd9c340 | 405 | #endif /* __OpenBSD__ && OpenBSD < 201211 */ |
68b10830 | 406 | |
a41f09e2 | 407 | /* |
68b10830 MS |
408 | * Since CoreFoundation and DBUS both create fork-unsafe data on execution of |
409 | * a program, and since this kind of really unfriendly behavior seems to be | |
410 | * more common these days in system libraries, we need to re-execute the | |
411 | * background cupsd with the "-C" option to avoid problems. Unfortunately, | |
412 | * we also have to assume that argv[0] contains the name of the cupsd | |
413 | * executable - there is no portable way to get the real pathname... | |
a41f09e2 MS |
414 | */ |
415 | ||
416 | execlp(argv[0], argv[0], "-C", ConfigurationFile, (char *)0); | |
417 | exit(errno); | |
ef416fc2 | 418 | } |
419 | ||
420 | if (fg < 1) | |
421 | { | |
422 | /* | |
423 | * Make sure we aren't tying up any filesystems... | |
424 | */ | |
425 | ||
426 | chdir("/"); | |
427 | ||
428 | #ifndef DEBUG | |
429 | /* | |
430 | * Disable core dumps... | |
431 | */ | |
432 | ||
433 | getrlimit(RLIMIT_CORE, &limit); | |
434 | limit.rlim_cur = 0; | |
435 | setrlimit(RLIMIT_CORE, &limit); | |
436 | ||
437 | /* | |
438 | * Disconnect from the controlling terminal... | |
439 | */ | |
440 | ||
441 | setsid(); | |
442 | ||
443 | /* | |
444 | * Close all open files... | |
445 | */ | |
446 | ||
447 | getrlimit(RLIMIT_NOFILE, &limit); | |
448 | ||
b94498cf | 449 | for (i = 0; i < limit.rlim_cur && i < 1024; i ++) |
ef416fc2 | 450 | close(i); |
a4924f6c MS |
451 | |
452 | /* | |
453 | * Redirect stdin/out/err to /dev/null... | |
454 | */ | |
455 | ||
68b10830 MS |
456 | if ((i = open("/dev/null", O_RDONLY)) != 0) |
457 | { | |
458 | dup2(i, 0); | |
459 | close(i); | |
460 | } | |
461 | ||
462 | if ((i = open("/dev/null", O_WRONLY)) != 1) | |
463 | { | |
464 | dup2(i, 1); | |
465 | close(i); | |
466 | } | |
467 | ||
468 | if ((i = open("/dev/null", O_WRONLY)) != 2) | |
469 | { | |
470 | dup2(i, 2); | |
471 | close(i); | |
472 | } | |
ef416fc2 | 473 | #endif /* DEBUG */ |
474 | } | |
475 | ||
476 | /* | |
477 | * Set the timezone info... | |
478 | */ | |
479 | ||
480 | tzset(); | |
481 | ||
482 | #ifdef LC_TIME | |
483 | setlocale(LC_TIME, ""); | |
484 | #endif /* LC_TIME */ | |
485 | ||
486 | /* | |
487 | * Set the maximum number of files... | |
488 | */ | |
489 | ||
490 | getrlimit(RLIMIT_NOFILE, &limit); | |
491 | ||
f7deaa1a | 492 | #if !defined(HAVE_POLL) && !defined(HAVE_EPOLL) && !defined(HAVE_KQUEUE) |
f7faf1f5 | 493 | if (limit.rlim_max > FD_SETSIZE) |
494 | MaxFDs = FD_SETSIZE; | |
ef416fc2 | 495 | else |
f7deaa1a | 496 | #endif /* !HAVE_POLL && !HAVE_EPOLL && !HAVE_KQUEUE */ |
497 | #ifdef RLIM_INFINITY | |
498 | if (limit.rlim_max == RLIM_INFINITY) | |
499 | MaxFDs = 16384; | |
500 | else | |
501 | #endif /* RLIM_INFINITY */ | |
ef416fc2 | 502 | MaxFDs = limit.rlim_max; |
503 | ||
7e86f2f6 | 504 | limit.rlim_cur = (rlim_t)MaxFDs; |
ef416fc2 | 505 | |
506 | setrlimit(RLIMIT_NOFILE, &limit); | |
507 | ||
f7deaa1a | 508 | cupsdStartSelect(); |
ef416fc2 | 509 | |
510 | /* | |
511 | * Read configuration... | |
512 | */ | |
513 | ||
514 | if (!cupsdReadConfiguration()) | |
ef416fc2 | 515 | return (1); |
2e4ff8af MS |
516 | else if (TestConfigFile) |
517 | { | |
cb7f98ee MS |
518 | printf("\"%s\" is OK.\n", CupsFilesFile); |
519 | printf("\"%s\" is OK.\n", ConfigurationFile); | |
2e4ff8af MS |
520 | return (0); |
521 | } | |
ef416fc2 | 522 | |
ba55dc12 MS |
523 | /* |
524 | * Clean out old temp files and printer cache data. | |
525 | */ | |
cc0d019f | 526 | |
ba55dc12 | 527 | if (!strncmp(TempDir, RequestRoot, strlen(RequestRoot))) |
321d8d57 | 528 | cupsdCleanFiles(TempDir, NULL); |
cc0d019f | 529 | |
321d8d57 | 530 | cupsdCleanFiles(CacheDir, "*.ipp"); |
cc0d019f | 531 | |
a4d04587 | 532 | #if HAVE_LAUNCHD |
4400e98d | 533 | if (Launchd) |
a4d04587 | 534 | { |
535 | /* | |
b94498cf | 536 | * If we were started by launchd get the listen sockets file descriptors... |
f7deaa1a | 537 | */ |
a4d04587 | 538 | |
539 | launchd_checkin(); | |
e4572d57 | 540 | launchd_checkout(); |
a4d04587 | 541 | } |
542 | #endif /* HAVE_LAUNCHD */ | |
543 | ||
544 | /* | |
545 | * Startup the server... | |
546 | */ | |
547 | ||
6d2f911b MS |
548 | httpInitialize(); |
549 | ||
a4d04587 | 550 | cupsdStartServer(); |
551 | ||
ef416fc2 | 552 | /* |
553 | * Catch hangup and child signals and ignore broken pipes... | |
554 | */ | |
555 | ||
556 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
e1d6a774 | 557 | sigset(SIGCHLD, sigchld_handler); |
4744bd90 | 558 | sigset(SIGHUP, sighup_handler); |
ef416fc2 | 559 | sigset(SIGPIPE, SIG_IGN); |
560 | sigset(SIGTERM, sigterm_handler); | |
561 | #elif defined(HAVE_SIGACTION) | |
562 | memset(&action, 0, sizeof(action)); | |
563 | ||
e1d6a774 | 564 | sigemptyset(&action.sa_mask); |
565 | sigaddset(&action.sa_mask, SIGTERM); | |
566 | sigaddset(&action.sa_mask, SIGCHLD); | |
567 | action.sa_handler = sigchld_handler; | |
568 | sigaction(SIGCHLD, &action, NULL); | |
569 | ||
ef416fc2 | 570 | sigemptyset(&action.sa_mask); |
571 | sigaddset(&action.sa_mask, SIGHUP); | |
4744bd90 | 572 | action.sa_handler = sighup_handler; |
ef416fc2 | 573 | sigaction(SIGHUP, &action, NULL); |
574 | ||
575 | sigemptyset(&action.sa_mask); | |
576 | action.sa_handler = SIG_IGN; | |
577 | sigaction(SIGPIPE, &action, NULL); | |
578 | ||
579 | sigemptyset(&action.sa_mask); | |
580 | sigaddset(&action.sa_mask, SIGTERM); | |
581 | sigaddset(&action.sa_mask, SIGCHLD); | |
582 | action.sa_handler = sigterm_handler; | |
583 | sigaction(SIGTERM, &action, NULL); | |
584 | #else | |
e1d6a774 | 585 | signal(SIGCLD, sigchld_handler); /* No, SIGCLD isn't a typo... */ |
4744bd90 | 586 | signal(SIGHUP, sighup_handler); |
ef416fc2 | 587 | signal(SIGPIPE, SIG_IGN); |
588 | signal(SIGTERM, sigterm_handler); | |
589 | #endif /* HAVE_SIGSET */ | |
590 | ||
ef416fc2 | 591 | /* |
592 | * Initialize authentication certificates... | |
593 | */ | |
594 | ||
595 | cupsdInitCerts(); | |
596 | ||
597 | /* | |
598 | * If we are running in the background, signal the parent process that | |
599 | * we are up and running... | |
600 | */ | |
601 | ||
a41f09e2 | 602 | if (!fg || run_as_child) |
ef416fc2 | 603 | { |
604 | /* | |
605 | * Send a signal to the parent process, but only if the parent is | |
606 | * not PID 1 (init). This avoids accidentally shutting down the | |
607 | * system on OpenBSD if you CTRL-C the server before it is up... | |
608 | */ | |
609 | ||
610 | i = getppid(); /* Save parent PID to avoid race condition */ | |
611 | ||
612 | if (i != 1) | |
613 | kill(i, SIGUSR1); | |
614 | } | |
615 | ||
e1d6a774 | 616 | #ifdef __APPLE__ |
09ec0018 | 617 | /* |
618 | * Start power management framework... | |
619 | */ | |
620 | ||
1340db2d MS |
621 | if (use_sysman) |
622 | cupsdStartSystemMonitor(); | |
e1d6a774 | 623 | #endif /* __APPLE__ */ |
ef416fc2 | 624 | |
49d87452 MS |
625 | /* |
626 | * Send server-started event... | |
627 | */ | |
628 | ||
629 | #ifdef HAVE_LAUNCHD | |
630 | if (Launchd) | |
631 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, | |
632 | "Scheduler started via launchd."); | |
633 | else | |
634 | #endif /* HAVE_LAUNCHD */ | |
635 | if (fg) | |
636 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, | |
637 | "Scheduler started in foreground."); | |
638 | else | |
639 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, | |
640 | "Scheduler started in background."); | |
641 | ||
ef416fc2 | 642 | /* |
643 | * Start any pending print jobs... | |
644 | */ | |
645 | ||
646 | cupsdCheckJobs(); | |
647 | ||
648 | /* | |
649 | * Loop forever... | |
650 | */ | |
651 | ||
50fe7201 | 652 | current_time = time(NULL); |
50fe7201 MS |
653 | event_time = current_time; |
654 | expire_time = current_time; | |
ef416fc2 | 655 | fds = 1; |
5bd77a73 | 656 | report_time = 0; |
50fe7201 | 657 | senddoc_time = current_time; |
ef416fc2 | 658 | |
659 | while (!stop_scheduler) | |
660 | { | |
ef416fc2 | 661 | /* |
662 | * Check if there are dead children to handle... | |
663 | */ | |
664 | ||
665 | if (dead_children) | |
666 | process_children(); | |
667 | ||
668 | /* | |
669 | * Check if we need to load the server configuration file... | |
670 | */ | |
671 | ||
672 | if (NeedReload) | |
673 | { | |
674 | /* | |
675 | * Close any idle clients... | |
676 | */ | |
677 | ||
bd7854cb | 678 | if (cupsArrayCount(Clients) > 0) |
ef416fc2 | 679 | { |
bd7854cb | 680 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
681 | con; | |
682 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
996acce8 | 683 | if (httpGetState(con->http) == HTTP_WAITING) |
ef416fc2 | 684 | cupsdCloseClient(con); |
ef416fc2 | 685 | else |
996acce8 | 686 | con->http->keep_alive = HTTP_KEEPALIVE_OFF; |
ef416fc2 | 687 | |
688 | cupsdPauseListening(); | |
689 | } | |
690 | ||
ef416fc2 | 691 | /* |
692 | * Restart if all clients are closed and all jobs finished, or | |
693 | * if the reload timeout has elapsed... | |
694 | */ | |
695 | ||
bd7854cb | 696 | if ((cupsArrayCount(Clients) == 0 && |
238c3832 | 697 | (cupsArrayCount(PrintingJobs) == 0 || NeedReload != RELOAD_ALL)) || |
ef416fc2 | 698 | (time(NULL) - ReloadTime) >= ReloadTimeout) |
699 | { | |
a4d04587 | 700 | /* |
701 | * Shutdown the server... | |
702 | */ | |
703 | ||
7cf5915e MS |
704 | DoingShutdown = 1; |
705 | ||
a4d04587 | 706 | cupsdStopServer(); |
707 | ||
708 | /* | |
709 | * Read configuration... | |
710 | */ | |
711 | ||
ef416fc2 | 712 | if (!cupsdReadConfiguration()) |
713 | { | |
714 | syslog(LOG_LPR, "Unable to read configuration file \'%s\' - exiting!", | |
715 | ConfigurationFile); | |
716 | break; | |
717 | } | |
a4d04587 | 718 | |
719 | #if HAVE_LAUNCHD | |
4400e98d | 720 | if (Launchd) |
a4d04587 | 721 | { |
b94498cf | 722 | /* |
5a662dc0 MS |
723 | * If we were started by launchd, get the listen socket file |
724 | * descriptors... | |
b94498cf | 725 | */ |
726 | ||
a4d04587 | 727 | launchd_checkin(); |
e4572d57 | 728 | launchd_checkout(); |
a4d04587 | 729 | } |
730 | #endif /* HAVE_LAUNCHD */ | |
731 | ||
732 | /* | |
733 | * Startup the server... | |
734 | */ | |
735 | ||
7cf5915e MS |
736 | DoingShutdown = 0; |
737 | ||
a4d04587 | 738 | cupsdStartServer(); |
49d87452 MS |
739 | |
740 | /* | |
741 | * Send a server-restarted event... | |
742 | */ | |
743 | ||
744 | cupsdAddEvent(CUPSD_EVENT_SERVER_RESTARTED, NULL, NULL, | |
745 | "Scheduler restarted."); | |
ef416fc2 | 746 | } |
747 | } | |
748 | ||
749 | /* | |
f7deaa1a | 750 | * Check for available input or ready output. If cupsdDoSelect() |
751 | * returns 0 or -1, something bad happened and we should exit | |
752 | * immediately. | |
ef416fc2 | 753 | * |
754 | * Note that we at least have one listening socket open at all | |
755 | * times. | |
756 | */ | |
757 | ||
50fe7201 MS |
758 | if ((timeout = select_timeout(fds)) > 1 && LastEvent) |
759 | timeout = 1; | |
ef416fc2 | 760 | |
a4d04587 | 761 | #if HAVE_LAUNCHD |
762 | /* | |
763 | * If no other work is scheduled and we're being controlled by | |
411affcf | 764 | * launchd then timeout after 'LaunchdTimeout' seconds of |
a4d04587 | 765 | * inactivity... |
766 | */ | |
767 | ||
a2326b5b | 768 | if (timeout == 86400 && Launchd && LaunchdTimeout && |
bc44d920 | 769 | !cupsArrayCount(ActiveJobs) && |
a2326b5b | 770 | (!Browsing || !BrowseLocalProtocols || !cupsArrayCount(Printers))) |
a4d04587 | 771 | { |
f7deaa1a | 772 | timeout = LaunchdTimeout; |
a4d04587 | 773 | launchd_idle_exit = 1; |
774 | } | |
775 | else | |
776 | launchd_idle_exit = 0; | |
777 | #endif /* HAVE_LAUNCHD */ | |
778 | ||
f7deaa1a | 779 | if ((fds = cupsdDoSelect(timeout)) < 0) |
ef416fc2 | 780 | { |
ef416fc2 | 781 | /* |
782 | * Got an error from select! | |
783 | */ | |
784 | ||
37e7e6e0 | 785 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
f7deaa1a | 786 | cupsd_printer_t *p; /* Current printer */ |
37e7e6e0 | 787 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
f7deaa1a | 788 | |
789 | ||
790 | if (errno == EINTR) /* Just interrupted by a signal */ | |
ef416fc2 | 791 | continue; |
792 | ||
793 | /* | |
794 | * Log all sorts of debug info to help track down the problem. | |
795 | */ | |
796 | ||
f7deaa1a | 797 | cupsdLogMessage(CUPSD_LOG_EMERG, "cupsdDoSelect() failed - %s!", |
ef416fc2 | 798 | strerror(errno)); |
799 | ||
bd7854cb | 800 | for (i = 0, con = (cupsd_client_t *)cupsArrayFirst(Clients); |
801 | con; | |
802 | i ++, con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 803 | cupsdLogMessage(CUPSD_LOG_EMERG, |
804 | "Clients[%d] = %d, file = %d, state = %d", | |
996acce8 | 805 | i, con->number, con->file, httpGetState(con->http)); |
ef416fc2 | 806 | |
bd7854cb | 807 | for (i = 0, lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); |
808 | lis; | |
809 | i ++, lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
ef416fc2 | 810 | cupsdLogMessage(CUPSD_LOG_EMERG, "Listeners[%d] = %d", i, lis->fd); |
811 | ||
923edb68 | 812 | cupsdLogMessage(CUPSD_LOG_EMERG, "CGIPipes[0] = %d", CGIPipes[0]); |
813 | ||
09ec0018 | 814 | #ifdef __APPLE__ |
815 | cupsdLogMessage(CUPSD_LOG_EMERG, "SysEventPipes[0] = %d", | |
816 | SysEventPipes[0]); | |
817 | #endif /* __APPLE__ */ | |
818 | ||
ef416fc2 | 819 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); |
820 | job; | |
821 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
822 | cupsdLogMessage(CUPSD_LOG_EMERG, "Jobs[%d] = %d < [%d %d] > [%d %d]", | |
823 | job->id, | |
824 | job->status_buffer ? job->status_buffer->fd : -1, | |
825 | job->print_pipes[0], job->print_pipes[1], | |
826 | job->back_pipes[0], job->back_pipes[1]); | |
f7deaa1a | 827 | |
37e7e6e0 | 828 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
f7deaa1a | 829 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); |
830 | p; | |
831 | p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
7a14d768 MS |
832 | cupsdLogMessage(CUPSD_LOG_EMERG, "printer[%s] reg_name=\"%s\"", p->name, |
833 | p->reg_name ? p->reg_name : "(null)"); | |
37e7e6e0 | 834 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
f7deaa1a | 835 | |
ef416fc2 | 836 | break; |
837 | } | |
838 | ||
839 | current_time = time(NULL); | |
840 | ||
3dfe78b3 MS |
841 | /* |
842 | * Write dirty config/state files... | |
843 | */ | |
844 | ||
845 | if (DirtyCleanTime && current_time >= DirtyCleanTime) | |
3dfe78b3 | 846 | cupsdCleanDirty(); |
3dfe78b3 | 847 | |
e6013cfa MS |
848 | #ifdef __APPLE__ |
849 | /* | |
850 | * If we are going to sleep and still have pending jobs, stop them after | |
851 | * a period of time... | |
852 | */ | |
853 | ||
854 | if (SleepJobs > 0 && current_time >= SleepJobs && | |
855 | cupsArrayCount(PrintingJobs) > 0) | |
856 | { | |
857 | SleepJobs = 0; | |
e60ec91f | 858 | cupsdStopAllJobs(CUPSD_JOB_DEFAULT, 5); |
e6013cfa MS |
859 | } |
860 | #endif /* __APPLE__ */ | |
861 | ||
a4924f6c MS |
862 | #ifndef __APPLE__ |
863 | /* | |
864 | * Update the network interfaces once a minute... | |
865 | */ | |
866 | ||
867 | if ((current_time - netif_time) >= 60) | |
868 | { | |
869 | netif_time = current_time; | |
870 | NetIFUpdate = 1; | |
871 | } | |
872 | #endif /* !__APPLE__ */ | |
873 | ||
a4d04587 | 874 | #if HAVE_LAUNCHD |
875 | /* | |
411affcf | 876 | * If no other work was scheduled and we're being controlled by launchd |
a4d04587 | 877 | * then timeout after 'LaunchdTimeout' seconds of inactivity... |
878 | */ | |
879 | ||
880 | if (!fds && launchd_idle_exit) | |
881 | { | |
882 | cupsdLogMessage(CUPSD_LOG_INFO, | |
883 | "Printer sharing is off and there are no jobs pending, " | |
884 | "will restart on demand."); | |
885 | stop_scheduler = 1; | |
886 | break; | |
887 | } | |
888 | #endif /* HAVE_LAUNCHD */ | |
889 | ||
76cd9e37 MS |
890 | /* |
891 | * Resume listening for new connections as needed... | |
892 | */ | |
893 | ||
894 | if (ListeningPaused && ListeningPaused <= current_time && | |
895 | cupsArrayCount(Clients) < MaxClients) | |
896 | cupsdResumeListening(); | |
897 | ||
ef416fc2 | 898 | /* |
bd7854cb | 899 | * Expire subscriptions and unload completed jobs as needed... |
ef416fc2 | 900 | */ |
901 | ||
bd7854cb | 902 | if (current_time > expire_time) |
ef416fc2 | 903 | { |
bd7854cb | 904 | if (cupsArrayCount(Subscriptions) > 0) |
905 | cupsdExpireSubscriptions(NULL, NULL); | |
906 | ||
907 | cupsdUnloadCompletedJobs(); | |
ef416fc2 | 908 | |
909 | expire_time = current_time; | |
910 | } | |
911 | ||
07ed0e9a | 912 | #ifndef HAVE_AUTHORIZATION_H |
ef416fc2 | 913 | /* |
f7deaa1a | 914 | * Update the root certificate once every 5 minutes if we have client |
915 | * connections... | |
ef416fc2 | 916 | */ |
917 | ||
f7deaa1a | 918 | if ((current_time - RootCertTime) >= RootCertDuration && RootCertDuration && |
919 | !RunUser && cupsArrayCount(Clients)) | |
920 | { | |
921 | /* | |
922 | * Update the root certificate... | |
923 | */ | |
924 | ||
925 | cupsdDeleteCert(0); | |
0fa6c7fa | 926 | cupsdAddCert(0, "root", cupsdDefaultAuthType()); |
f7deaa1a | 927 | } |
07ed0e9a | 928 | #endif /* !HAVE_AUTHORIZATION_H */ |
ef416fc2 | 929 | |
930 | /* | |
931 | * Check for new data on the client sockets... | |
932 | */ | |
933 | ||
bd7854cb | 934 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
935 | con; | |
936 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 937 | { |
938 | /* | |
f7deaa1a | 939 | * Process pending data in the input buffer... |
ef416fc2 | 940 | */ |
941 | ||
996acce8 MS |
942 | // TODO: Use httpGetReady() |
943 | if (con->http->used) | |
ef416fc2 | 944 | { |
f7deaa1a | 945 | cupsdReadClient(con); |
946 | continue; | |
ef416fc2 | 947 | } |
948 | ||
949 | /* | |
950 | * Check the activity and close old clients... | |
951 | */ | |
952 | ||
996acce8 | 953 | // TODO: Use httpGetActivity() |
ef416fc2 | 954 | activity = current_time - Timeout; |
996acce8 | 955 | if (con->http->activity < activity && !con->pipe_pid) |
ef416fc2 | 956 | { |
957 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
958 | "Closing client %d after %d seconds of inactivity...", | |
996acce8 | 959 | con->number, Timeout); |
ef416fc2 | 960 | |
961 | cupsdCloseClient(con); | |
ef416fc2 | 962 | continue; |
963 | } | |
964 | } | |
965 | ||
966 | /* | |
967 | * Update any pending multi-file documents... | |
968 | */ | |
969 | ||
970 | if ((current_time - senddoc_time) >= 10) | |
971 | { | |
972 | cupsdCheckJobs(); | |
973 | senddoc_time = current_time; | |
974 | } | |
975 | ||
82cc1f9a MS |
976 | /* |
977 | * Clean job history... | |
978 | */ | |
979 | ||
980 | if (JobHistoryUpdate && current_time >= JobHistoryUpdate) | |
981 | cupsdCleanJobs(); | |
982 | ||
ef416fc2 | 983 | /* |
5bd77a73 | 984 | * Log statistics at most once a minute when in debug mode... |
ef416fc2 | 985 | */ |
986 | ||
5bd77a73 | 987 | if ((current_time - report_time) >= 60 && LogLevel >= CUPSD_LOG_DEBUG) |
ef416fc2 | 988 | { |
5bd77a73 MS |
989 | size_t string_count, /* String count */ |
990 | alloc_bytes, /* Allocated string bytes */ | |
991 | total_bytes; /* Total string bytes */ | |
4400e98d | 992 | #ifdef HAVE_MALLINFO |
5bd77a73 | 993 | struct mallinfo mem; /* Malloc information */ |
ef416fc2 | 994 | |
995 | ||
996 | mem = mallinfo(); | |
5bd77a73 MS |
997 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-arena=%lu", mem.arena); |
998 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-used=%lu", | |
999 | mem.usmblks + mem.uordblks); | |
1000 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-free=%lu", | |
ef416fc2 | 1001 | mem.fsmblks + mem.fordblks); |
4400e98d | 1002 | #endif /* HAVE_MALLINFO */ |
1003 | ||
5bd77a73 MS |
1004 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: clients=%d", |
1005 | cupsArrayCount(Clients)); | |
1006 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: jobs=%d", | |
1007 | cupsArrayCount(Jobs)); | |
1008 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: jobs-active=%d", | |
1009 | cupsArrayCount(ActiveJobs)); | |
1010 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: printers=%d", | |
1011 | cupsArrayCount(Printers)); | |
5bd77a73 | 1012 | |
757d2cad | 1013 | string_count = _cupsStrStatistics(&alloc_bytes, &total_bytes); |
5bd77a73 MS |
1014 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
1015 | "Report: stringpool-string-count=" CUPS_LLFMT, | |
1016 | CUPS_LLCAST string_count); | |
1017 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1018 | "Report: stringpool-alloc-bytes=" CUPS_LLFMT, | |
1019 | CUPS_LLCAST alloc_bytes); | |
1020 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1021 | "Report: stringpool-total-bytes=" CUPS_LLFMT, | |
4400e98d | 1022 | CUPS_LLCAST total_bytes); |
1023 | ||
5bd77a73 | 1024 | report_time = current_time; |
ef416fc2 | 1025 | } |
ef416fc2 | 1026 | |
fa73b229 | 1027 | /* |
1028 | * Handle OS-specific event notification for any events that have | |
1029 | * accumulated. Don't send these more than once a second... | |
1030 | */ | |
1031 | ||
50fe7201 | 1032 | if (LastEvent && (current_time - event_time) >= 1) |
fa73b229 | 1033 | { |
1034 | #ifdef HAVE_NOTIFY_POST | |
a41f09e2 MS |
1035 | if (LastEvent & (CUPSD_EVENT_PRINTER_ADDED | |
1036 | CUPSD_EVENT_PRINTER_DELETED | | |
1037 | CUPSD_EVENT_PRINTER_MODIFIED)) | |
fa73b229 | 1038 | { |
e00b005a | 1039 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1040 | "notify_post(\"com.apple.printerListChange\")"); |
1041 | notify_post("com.apple.printerListChange"); | |
1042 | } | |
1043 | ||
1044 | if (LastEvent & CUPSD_EVENT_PRINTER_STATE_CHANGED) | |
1045 | { | |
e00b005a | 1046 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1047 | "notify_post(\"com.apple.printerHistoryChange\")"); |
1048 | notify_post("com.apple.printerHistoryChange"); | |
1049 | } | |
1050 | ||
1051 | if (LastEvent & (CUPSD_EVENT_JOB_STATE_CHANGED | | |
1052 | CUPSD_EVENT_JOB_CONFIG_CHANGED | | |
1053 | CUPSD_EVENT_JOB_PROGRESS)) | |
1054 | { | |
e00b005a | 1055 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1056 | "notify_post(\"com.apple.jobChange\")"); |
1057 | notify_post("com.apple.jobChange"); | |
1058 | } | |
1059 | #endif /* HAVE_NOTIFY_POST */ | |
1060 | ||
1061 | /* | |
e53920b9 | 1062 | * Reset the accumulated events... |
fa73b229 | 1063 | */ |
1064 | ||
50fe7201 MS |
1065 | LastEvent = CUPSD_EVENT_NONE; |
1066 | event_time = current_time; | |
fa73b229 | 1067 | } |
ef416fc2 | 1068 | } |
1069 | ||
1070 | /* | |
1071 | * Log a message based on what happened... | |
1072 | */ | |
1073 | ||
1074 | if (stop_scheduler) | |
49d87452 | 1075 | { |
ef416fc2 | 1076 | cupsdLogMessage(CUPSD_LOG_INFO, "Scheduler shutting down normally."); |
49d87452 MS |
1077 | cupsdAddEvent(CUPSD_EVENT_SERVER_STOPPED, NULL, NULL, |
1078 | "Scheduler shutting down normally."); | |
1079 | } | |
ef416fc2 | 1080 | else |
49d87452 | 1081 | { |
ef416fc2 | 1082 | cupsdLogMessage(CUPSD_LOG_ERROR, |
1083 | "Scheduler shutting down due to program error."); | |
49d87452 MS |
1084 | cupsdAddEvent(CUPSD_EVENT_SERVER_STOPPED, NULL, NULL, |
1085 | "Scheduler shutting down due to program error."); | |
1086 | } | |
ef416fc2 | 1087 | |
1088 | /* | |
7ff4fea9 | 1089 | * Close all network clients... |
ef416fc2 | 1090 | */ |
1091 | ||
7cf5915e MS |
1092 | DoingShutdown = 1; |
1093 | ||
ef416fc2 | 1094 | cupsdStopServer(); |
1095 | ||
7ff4fea9 MS |
1096 | #ifdef HAVE_LAUNCHD |
1097 | /* | |
1098 | * Update the launchd KeepAlive file as needed... | |
1099 | */ | |
1100 | ||
1101 | if (Launchd) | |
1102 | launchd_checkout(); | |
1103 | #endif /* HAVE_LAUNCHD */ | |
1104 | ||
1105 | /* | |
1106 | * Stop all jobs... | |
1107 | */ | |
1108 | ||
bd7854cb | 1109 | cupsdFreeAllJobs(); |
ef416fc2 | 1110 | |
e1d6a774 | 1111 | #ifdef __APPLE__ |
7ff4fea9 MS |
1112 | /* |
1113 | * Stop monitoring system event monitoring... | |
1114 | */ | |
1115 | ||
1340db2d MS |
1116 | if (use_sysman) |
1117 | cupsdStopSystemMonitor(); | |
e1d6a774 | 1118 | #endif /* __APPLE__ */ |
09ec0018 | 1119 | |
f7deaa1a | 1120 | cupsdStopSelect(); |
ef416fc2 | 1121 | |
1122 | return (!stop_scheduler); | |
1123 | } | |
1124 | ||
1125 | ||
10d09e33 MS |
1126 | /* |
1127 | * 'cupsdAddString()' - Copy and add a string to an array. | |
1128 | */ | |
1129 | ||
1130 | int /* O - 1 on success, 0 on failure */ | |
1131 | cupsdAddString(cups_array_t **a, /* IO - String array */ | |
1132 | const char *s) /* I - String to copy and add */ | |
1133 | { | |
1134 | if (!*a) | |
1135 | *a = cupsArrayNew3((cups_array_func_t)strcmp, NULL, | |
1136 | (cups_ahash_func_t)NULL, 0, | |
1137 | (cups_acopy_func_t)_cupsStrAlloc, | |
1138 | (cups_afree_func_t)_cupsStrFree); | |
1139 | ||
1140 | return (cupsArrayAdd(*a, (char *)s)); | |
1141 | } | |
1142 | ||
1143 | ||
d7871c8c MS |
1144 | /* |
1145 | * 'cupsdCheckProcess()' - Tell the main loop to check for dead children. | |
1146 | */ | |
1147 | ||
1148 | void | |
1149 | cupsdCheckProcess(void) | |
1150 | { | |
1151 | /* | |
1152 | * Flag that we have dead children... | |
1153 | */ | |
1154 | ||
1155 | dead_children = 1; | |
1156 | } | |
1157 | ||
1158 | ||
10d09e33 MS |
1159 | /* |
1160 | * 'cupsdClearString()' - Clear a string. | |
1161 | */ | |
1162 | ||
1163 | void | |
1164 | cupsdClearString(char **s) /* O - String value */ | |
1165 | { | |
1166 | if (s && *s) | |
1167 | { | |
1168 | _cupsStrFree(*s); | |
1169 | *s = NULL; | |
1170 | } | |
1171 | } | |
1172 | ||
1173 | ||
10d09e33 MS |
1174 | /* |
1175 | * 'cupsdFreeStrings()' - Free an array of strings. | |
1176 | */ | |
1177 | ||
1178 | void | |
1179 | cupsdFreeStrings(cups_array_t **a) /* IO - String array */ | |
1180 | { | |
1181 | if (*a) | |
1182 | { | |
1183 | cupsArrayDelete(*a); | |
1184 | *a = NULL; | |
1185 | } | |
1186 | } | |
1187 | ||
1188 | ||
1189 | /* | |
1190 | * 'cupsdHoldSignals()' - Hold child and termination signals. | |
1191 | */ | |
1192 | ||
1193 | void | |
1194 | cupsdHoldSignals(void) | |
1195 | { | |
1196 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
1197 | sigset_t newmask; /* New POSIX signal mask */ | |
1198 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
1199 | ||
1200 | ||
1201 | holdcount ++; | |
1202 | if (holdcount > 1) | |
1203 | return; | |
1204 | ||
1205 | #ifdef HAVE_SIGSET | |
1206 | sighold(SIGTERM); | |
1207 | sighold(SIGCHLD); | |
1208 | #elif defined(HAVE_SIGACTION) | |
1209 | sigemptyset(&newmask); | |
1210 | sigaddset(&newmask, SIGTERM); | |
1211 | sigaddset(&newmask, SIGCHLD); | |
1212 | sigprocmask(SIG_BLOCK, &newmask, &holdmask); | |
1213 | #endif /* HAVE_SIGSET */ | |
1214 | } | |
1215 | ||
1216 | ||
ef416fc2 | 1217 | /* |
1218 | * 'cupsdReleaseSignals()' - Release signals for delivery. | |
1219 | */ | |
1220 | ||
1221 | void | |
1222 | cupsdReleaseSignals(void) | |
1223 | { | |
1224 | holdcount --; | |
1225 | if (holdcount > 0) | |
1226 | return; | |
1227 | ||
1228 | #ifdef HAVE_SIGSET | |
1229 | sigrelse(SIGTERM); | |
1230 | sigrelse(SIGCHLD); | |
1231 | #elif defined(HAVE_SIGACTION) | |
1232 | sigprocmask(SIG_SETMASK, &holdmask, NULL); | |
1233 | #endif /* HAVE_SIGSET */ | |
1234 | } | |
1235 | ||
1236 | ||
1237 | /* | |
1238 | * 'cupsdSetString()' - Set a string value. | |
1239 | */ | |
1240 | ||
1241 | void | |
1242 | cupsdSetString(char **s, /* O - New string */ | |
1243 | const char *v) /* I - String value */ | |
1244 | { | |
1245 | if (!s || *s == v) | |
1246 | return; | |
1247 | ||
1248 | if (*s) | |
e53920b9 | 1249 | _cupsStrFree(*s); |
ef416fc2 | 1250 | |
1251 | if (v) | |
e53920b9 | 1252 | *s = _cupsStrAlloc(v); |
ef416fc2 | 1253 | else |
1254 | *s = NULL; | |
1255 | } | |
1256 | ||
1257 | ||
1258 | /* | |
1259 | * 'cupsdSetStringf()' - Set a formatted string value. | |
1260 | */ | |
1261 | ||
1262 | void | |
1263 | cupsdSetStringf(char **s, /* O - New string */ | |
1264 | const char *f, /* I - Printf-style format string */ | |
1265 | ...) /* I - Additional args as needed */ | |
1266 | { | |
94436c5a | 1267 | char v[65536 + 64]; /* Formatting string value */ |
ef416fc2 | 1268 | va_list ap; /* Argument pointer */ |
1269 | char *olds; /* Old string */ | |
1270 | ||
1271 | ||
1272 | if (!s) | |
1273 | return; | |
1274 | ||
1275 | olds = *s; | |
1276 | ||
1277 | if (f) | |
1278 | { | |
1279 | va_start(ap, f); | |
1280 | vsnprintf(v, sizeof(v), f, ap); | |
1281 | va_end(ap); | |
1282 | ||
e53920b9 | 1283 | *s = _cupsStrAlloc(v); |
ef416fc2 | 1284 | } |
1285 | else | |
1286 | *s = NULL; | |
1287 | ||
1288 | if (olds) | |
e53920b9 | 1289 | _cupsStrFree(olds); |
ef416fc2 | 1290 | } |
1291 | ||
1292 | ||
a4d04587 | 1293 | #ifdef HAVE_LAUNCHD |
1294 | /* | |
1295 | * 'launchd_checkin()' - Check-in with launchd and collect the listening fds. | |
1296 | */ | |
1297 | ||
1298 | static void | |
1299 | launchd_checkin(void) | |
1300 | { | |
06d4e77b | 1301 | size_t i, /* Looping var */ |
f8b3a85b | 1302 | count; /* Number of listeners */ |
a4d04587 | 1303 | launch_data_t ld_msg, /* Launch data message */ |
1304 | ld_resp, /* Launch data response */ | |
1305 | ld_array, /* Launch data array */ | |
1306 | ld_sockets, /* Launch data sockets dictionary */ | |
a4d04587 | 1307 | tmp; /* Launch data */ |
1308 | cupsd_listener_t *lis; /* Listeners array */ | |
1309 | http_addr_t addr; /* Address variable */ | |
1310 | socklen_t addrlen; /* Length of address */ | |
f7deaa1a | 1311 | int fd; /* File descriptor */ |
1312 | char s[256]; /* String addresss */ | |
a4d04587 | 1313 | |
1314 | ||
1315 | cupsdLogMessage(CUPSD_LOG_DEBUG, "launchd_checkin: pid=%d", (int)getpid()); | |
1316 | ||
1317 | /* | |
1318 | * Check-in with launchd... | |
1319 | */ | |
1320 | ||
1321 | ld_msg = launch_data_new_string(LAUNCH_KEY_CHECKIN); | |
1322 | if ((ld_resp = launch_msg(ld_msg)) == NULL) | |
1323 | { | |
bd7854cb | 1324 | cupsdLogMessage(CUPSD_LOG_ERROR, |
a4d04587 | 1325 | "launchd_checkin: launch_msg(\"" LAUNCH_KEY_CHECKIN |
1326 | "\") IPC failure"); | |
1327 | exit(EXIT_FAILURE); | |
749b1e90 | 1328 | return; /* anti-compiler-warning */ |
a4d04587 | 1329 | } |
bd7854cb | 1330 | |
a4d04587 | 1331 | if (launch_data_get_type(ld_resp) == LAUNCH_DATA_ERRNO) |
1332 | { | |
1333 | errno = launch_data_get_errno(ld_resp); | |
1334 | cupsdLogMessage(CUPSD_LOG_ERROR, "launchd_checkin: Check-in failed: %s", | |
1335 | strerror(errno)); | |
1336 | exit(EXIT_FAILURE); | |
749b1e90 | 1337 | return; /* anti-compiler-warning */ |
a4d04587 | 1338 | } |
1339 | ||
a4d04587 | 1340 | /* |
1341 | * Get the sockets dictionary... | |
1342 | */ | |
1343 | ||
749b1e90 MS |
1344 | if ((ld_sockets = launch_data_dict_lookup(ld_resp, LAUNCH_JOBKEY_SOCKETS)) |
1345 | == NULL) | |
a4d04587 | 1346 | { |
1347 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1348 | "launchd_checkin: No sockets found to answer requests on!"); | |
1349 | exit(EXIT_FAILURE); | |
749b1e90 | 1350 | return; /* anti-compiler-warning */ |
a4d04587 | 1351 | } |
bd7854cb | 1352 | |
a4d04587 | 1353 | /* |
1354 | * Get the array of listener sockets... | |
1355 | */ | |
1356 | ||
749b1e90 | 1357 | if ((ld_array = launch_data_dict_lookup(ld_sockets, "Listeners")) == NULL) |
a4d04587 | 1358 | { |
1359 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1360 | "launchd_checkin: No sockets found to answer requests on!"); | |
1361 | exit(EXIT_FAILURE); | |
749b1e90 | 1362 | return; /* anti-compiler-warning */ |
a4d04587 | 1363 | } |
1364 | ||
1365 | /* | |
1366 | * Add listening fd(s) to the Listener array... | |
1367 | */ | |
1368 | ||
1369 | if (launch_data_get_type(ld_array) == LAUNCH_DATA_ARRAY) | |
1370 | { | |
f7deaa1a | 1371 | count = launch_data_array_get_count(ld_array); |
bd7854cb | 1372 | |
1373 | for (i = 0; i < count; i ++) | |
a4d04587 | 1374 | { |
1375 | /* | |
f7deaa1a | 1376 | * Get the launchd file descriptor and address... |
a4d04587 | 1377 | */ |
bd7854cb | 1378 | |
749b1e90 | 1379 | if ((tmp = launch_data_array_get_index(ld_array, i)) != NULL) |
bd7854cb | 1380 | { |
749b1e90 MS |
1381 | fd = launch_data_get_fd(tmp); |
1382 | addrlen = sizeof(addr); | |
bd7854cb | 1383 | |
749b1e90 MS |
1384 | if (getsockname(fd, (struct sockaddr *)&addr, &addrlen)) |
1385 | { | |
1386 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1387 | "launchd_checkin: Unable to get local address - %s", | |
1388 | strerror(errno)); | |
1389 | continue; | |
1390 | } | |
bd7854cb | 1391 | |
749b1e90 MS |
1392 | /* |
1393 | * Try to match the launchd socket address to one of the listeners... | |
1394 | */ | |
f7deaa1a | 1395 | |
749b1e90 MS |
1396 | for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); |
1397 | lis; | |
1398 | lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
1399 | if (httpAddrEqual(&lis->address, &addr)) | |
1400 | break; | |
a4d04587 | 1401 | |
749b1e90 MS |
1402 | /* |
1403 | * Add a new listener If there's no match... | |
1404 | */ | |
f7deaa1a | 1405 | |
749b1e90 MS |
1406 | if (lis) |
1407 | { | |
ef55b745 | 1408 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
749b1e90 MS |
1409 | "launchd_checkin: Matched existing listener %s with fd %d...", |
1410 | httpAddrString(&(lis->address), s, sizeof(s)), fd); | |
1411 | } | |
1412 | else | |
1413 | { | |
ef55b745 | 1414 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
749b1e90 MS |
1415 | "launchd_checkin: Adding new listener %s with fd %d...", |
1416 | httpAddrString(&addr, s, sizeof(s)), fd); | |
f7deaa1a | 1417 | |
749b1e90 MS |
1418 | if ((lis = calloc(1, sizeof(cupsd_listener_t))) == NULL) |
1419 | { | |
1420 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
5a662dc0 MS |
1421 | "launchd_checkin: Unable to allocate listener - " |
1422 | "%s.", strerror(errno)); | |
749b1e90 MS |
1423 | exit(EXIT_FAILURE); |
1424 | } | |
f7deaa1a | 1425 | |
749b1e90 | 1426 | cupsArrayAdd(Listeners, lis); |
bd7854cb | 1427 | |
749b1e90 MS |
1428 | memcpy(&lis->address, &addr, sizeof(lis->address)); |
1429 | } | |
1430 | ||
1431 | lis->fd = fd; | |
f7deaa1a | 1432 | |
a4d04587 | 1433 | # ifdef HAVE_SSL |
a469f8a5 | 1434 | if (httpAddrPort(&(lis->address)) == 443) |
749b1e90 | 1435 | lis->encryption = HTTP_ENCRYPT_ALWAYS; |
a4d04587 | 1436 | # endif /* HAVE_SSL */ |
749b1e90 | 1437 | } |
a4d04587 | 1438 | } |
1439 | } | |
1440 | ||
a4d04587 | 1441 | launch_data_free(ld_msg); |
1442 | launch_data_free(ld_resp); | |
1443 | } | |
1444 | ||
1445 | ||
f7deaa1a | 1446 | /* |
1447 | * 'launchd_checkout()' - Update the launchd KeepAlive file as needed. | |
1448 | */ | |
1449 | ||
1450 | static void | |
1451 | launchd_checkout(void) | |
1452 | { | |
1453 | int fd; /* File descriptor */ | |
1454 | ||
1455 | ||
1456 | /* | |
1457 | * Create or remove the launchd KeepAlive file based on whether | |
ef55b745 | 1458 | * there are active jobs, polling, browsing for remote printers or |
f7deaa1a | 1459 | * shared printers to advertise... |
1460 | */ | |
1461 | ||
a2326b5b MS |
1462 | if (cupsArrayCount(ActiveJobs) || |
1463 | (Browsing && BrowseLocalProtocols && cupsArrayCount(Printers))) | |
f7deaa1a | 1464 | { |
1465 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
5a662dc0 MS |
1466 | "Creating launchd keepalive file \"" CUPS_KEEPALIVE |
1467 | "\"..."); | |
f7deaa1a | 1468 | |
1469 | if ((fd = open(CUPS_KEEPALIVE, O_RDONLY | O_CREAT | O_EXCL, S_IRUSR)) >= 0) | |
1470 | close(fd); | |
1471 | } | |
1472 | else | |
1473 | { | |
1474 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
5a662dc0 MS |
1475 | "Removing launchd keepalive file \"" CUPS_KEEPALIVE |
1476 | "\"..."); | |
f7deaa1a | 1477 | |
1478 | unlink(CUPS_KEEPALIVE); | |
1479 | } | |
1480 | } | |
a4d04587 | 1481 | #endif /* HAVE_LAUNCHD */ |
1482 | ||
1483 | ||
ef416fc2 | 1484 | /* |
1485 | * 'parent_handler()' - Catch USR1/CHLD signals... | |
1486 | */ | |
1487 | ||
1488 | static void | |
1489 | parent_handler(int sig) /* I - Signal */ | |
1490 | { | |
1491 | /* | |
1492 | * Store the signal we got from the OS and return... | |
1493 | */ | |
1494 | ||
1495 | parent_signal = sig; | |
1496 | } | |
1497 | ||
1498 | ||
1499 | /* | |
1500 | * 'process_children()' - Process all dead children... | |
1501 | */ | |
1502 | ||
1503 | static void | |
1504 | process_children(void) | |
1505 | { | |
1506 | int status; /* Exit status of child */ | |
b9faaae1 MS |
1507 | int pid, /* Process ID of child */ |
1508 | job_id; /* Job ID of child */ | |
ef416fc2 | 1509 | cupsd_job_t *job; /* Current job */ |
1510 | int i; /* Looping var */ | |
e00b005a | 1511 | char name[1024]; /* Process name */ |
dcb445bc | 1512 | const char *type; /* Type of program */ |
ef416fc2 | 1513 | |
1514 | ||
1515 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "process_children()"); | |
1516 | ||
1517 | /* | |
1518 | * Reset the dead_children flag... | |
1519 | */ | |
1520 | ||
1521 | dead_children = 0; | |
1522 | ||
1523 | /* | |
1524 | * Collect the exit status of some children... | |
1525 | */ | |
1526 | ||
1527 | #ifdef HAVE_WAITPID | |
1528 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) | |
1529 | #elif defined(HAVE_WAIT3) | |
1530 | while ((pid = wait3(&status, WNOHANG, NULL)) > 0) | |
1531 | #else | |
1532 | if ((pid = wait(&status)) > 0) | |
1533 | #endif /* HAVE_WAITPID */ | |
1534 | { | |
ef416fc2 | 1535 | /* |
745129be | 1536 | * Collect the name of the process that finished... |
ef416fc2 | 1537 | */ |
1538 | ||
b9faaae1 | 1539 | cupsdFinishProcess(pid, name, sizeof(name), &job_id); |
e00b005a | 1540 | |
ef416fc2 | 1541 | /* |
1542 | * Delete certificates for CGI processes... | |
1543 | */ | |
1544 | ||
1545 | if (pid) | |
1546 | cupsdDeleteCert(pid); | |
1547 | ||
1548 | /* | |
b9faaae1 | 1549 | * Handle completed job filters... |
ef416fc2 | 1550 | */ |
1551 | ||
dcb445bc MS |
1552 | if (job_id > 0) |
1553 | job = cupsdFindJob(job_id); | |
1554 | else | |
1555 | job = NULL; | |
1556 | ||
1557 | if (job) | |
b9faaae1 MS |
1558 | { |
1559 | for (i = 0; job->filters[i]; i ++) | |
1560 | if (job->filters[i] == pid) | |
1561 | break; | |
1562 | ||
1563 | if (job->filters[i] || job->backend == pid) | |
ef416fc2 | 1564 | { |
b9faaae1 MS |
1565 | /* |
1566 | * OK, this process has gone away; what's left? | |
1567 | */ | |
1568 | ||
1569 | if (job->filters[i]) | |
dcb445bc | 1570 | { |
b9faaae1 | 1571 | job->filters[i] = -pid; |
dcb445bc MS |
1572 | type = "Filter"; |
1573 | } | |
b9faaae1 | 1574 | else |
dcb445bc | 1575 | { |
b9faaae1 | 1576 | job->backend = -pid; |
dcb445bc MS |
1577 | type = "Backend"; |
1578 | } | |
ef416fc2 | 1579 | |
b9faaae1 | 1580 | if (status && status != SIGTERM && status != SIGKILL && |
f3c17241 | 1581 | status != SIGPIPE) |
ef416fc2 | 1582 | { |
1583 | /* | |
b9faaae1 MS |
1584 | * An error occurred; save the exit status so we know to stop |
1585 | * the printer or cancel the job when all of the filters finish... | |
1586 | * | |
1587 | * A negative status indicates that the backend failed and the | |
1588 | * printer needs to be stopped. | |
f3c17241 MS |
1589 | * |
1590 | * In order to preserve the most serious status, we always log | |
1591 | * when a process dies due to a signal (e.g. SIGABRT, SIGSEGV, | |
1592 | * and SIGBUS) and prefer to log the backend exit status over a | |
1593 | * filter's. | |
ef416fc2 | 1594 | */ |
1595 | ||
f3c17241 MS |
1596 | int old_status = abs(job->status); |
1597 | ||
1598 | if (WIFSIGNALED(status) || /* This process crashed, or */ | |
1599 | !job->status || /* No process had a status, or */ | |
1600 | (!job->filters[i] && WIFEXITED(old_status))) | |
1601 | { /* Backend and filter didn't crash */ | |
1602 | if (job->filters[i]) | |
1603 | job->status = status; /* Filter failed */ | |
1604 | else | |
1605 | job->status = -status; /* Backend failed */ | |
1606 | } | |
ef416fc2 | 1607 | |
f11a948a | 1608 | if (job->state_value == IPP_JOB_PROCESSING && |
dcb445bc MS |
1609 | job->status_level > CUPSD_LOG_ERROR && |
1610 | (job->filters[i] || !WIFEXITED(status))) | |
ef416fc2 | 1611 | { |
f11a948a MS |
1612 | char message[1024]; /* New printer-state-message */ |
1613 | ||
1614 | ||
b9faaae1 | 1615 | job->status_level = CUPSD_LOG_ERROR; |
ef416fc2 | 1616 | |
dcb445bc | 1617 | snprintf(message, sizeof(message), "%s failed", type); |
f11a948a | 1618 | |
e07d4801 MS |
1619 | if (job->printer) |
1620 | { | |
f11a948a MS |
1621 | strlcpy(job->printer->state_message, message, |
1622 | sizeof(job->printer->state_message)); | |
e07d4801 MS |
1623 | } |
1624 | ||
1625 | if (!job->attrs) | |
1626 | cupsdLoadJob(job); | |
e00b005a | 1627 | |
e07d4801 | 1628 | if (!job->printer_message && job->attrs) |
e00b005a | 1629 | { |
b9faaae1 MS |
1630 | if ((job->printer_message = |
1631 | ippFindAttribute(job->attrs, "job-printer-state-message", | |
1632 | IPP_TAG_TEXT)) == NULL) | |
1633 | job->printer_message = ippAddString(job->attrs, IPP_TAG_JOB, | |
1634 | IPP_TAG_TEXT, | |
1635 | "job-printer-state-message", | |
5a662dc0 | 1636 | NULL, NULL); |
e00b005a | 1637 | } |
b9faaae1 | 1638 | |
e07d4801 MS |
1639 | if (job->printer_message) |
1640 | cupsdSetString(&(job->printer_message->values[0].string.text), | |
f11a948a | 1641 | message); |
ef416fc2 | 1642 | } |
b9faaae1 | 1643 | } |
ef416fc2 | 1644 | |
b9faaae1 MS |
1645 | /* |
1646 | * If this is not the last file in a job, see if all of the | |
1647 | * filters are done, and if so move to the next file. | |
1648 | */ | |
ef416fc2 | 1649 | |
5a662dc0 | 1650 | if (job->current_file < job->num_files && job->printer) |
b9faaae1 MS |
1651 | { |
1652 | for (i = 0; job->filters[i] < 0; i ++); | |
ef416fc2 | 1653 | |
82f97232 MS |
1654 | if (!job->filters[i] && |
1655 | (!job->printer->pc || !job->printer->pc->single_file || | |
1656 | job->backend <= 0)) | |
b9faaae1 MS |
1657 | { |
1658 | /* | |
1659 | * Process the next file... | |
1660 | */ | |
ef416fc2 | 1661 | |
b9faaae1 | 1662 | cupsdContinueJob(job); |
ef416fc2 | 1663 | } |
ef416fc2 | 1664 | } |
5a662dc0 | 1665 | else if (job->state_value >= IPP_JOB_CANCELED) |
7a0cbd5e MS |
1666 | { |
1667 | /* | |
1668 | * Remove the job from the active list if there are no processes still | |
1669 | * running for it... | |
1670 | */ | |
1671 | ||
1672 | for (i = 0; job->filters[i] < 0; i++); | |
1673 | ||
1674 | if (!job->filters[i] && job->backend <= 0) | |
1675 | cupsArrayRemove(ActiveJobs, job); | |
1676 | } | |
ef416fc2 | 1677 | } |
b9faaae1 | 1678 | } |
3dfe78b3 MS |
1679 | |
1680 | /* | |
745129be MS |
1681 | * Show the exit status as needed, ignoring SIGTERM and SIGKILL errors |
1682 | * since they come when we kill/end a process... | |
3dfe78b3 MS |
1683 | */ |
1684 | ||
745129be MS |
1685 | if (status == SIGTERM || status == SIGKILL) |
1686 | { | |
dcb445bc MS |
1687 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1688 | "PID %d (%s) was terminated normally with signal %d.", pid, | |
1689 | name, status); | |
745129be | 1690 | } |
5a6b583a MS |
1691 | else if (status == SIGPIPE) |
1692 | { | |
dcb445bc MS |
1693 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1694 | "PID %d (%s) did not catch or ignore signal %d.", pid, name, | |
1695 | status); | |
5a6b583a | 1696 | } |
745129be | 1697 | else if (status) |
3dfe78b3 MS |
1698 | { |
1699 | if (WIFEXITED(status)) | |
88f9aafc MS |
1700 | { |
1701 | int code = WEXITSTATUS(status); /* Exit code */ | |
1702 | ||
1703 | if (code > 100) | |
dcb445bc MS |
1704 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1705 | "PID %d (%s) stopped with status %d (%s)", pid, name, | |
1706 | code, strerror(code - 100)); | |
88f9aafc | 1707 | else |
dcb445bc MS |
1708 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1709 | "PID %d (%s) stopped with status %d.", pid, name, code); | |
88f9aafc | 1710 | } |
3dfe78b3 | 1711 | else |
dcb445bc MS |
1712 | cupsdLogJob(job, CUPSD_LOG_DEBUG, "PID %d (%s) crashed on signal %d.", |
1713 | pid, name, WTERMSIG(status)); | |
3dfe78b3 MS |
1714 | |
1715 | if (LogLevel < CUPSD_LOG_DEBUG) | |
dcb445bc MS |
1716 | cupsdLogJob(job, CUPSD_LOG_INFO, |
1717 | "Hint: Try setting the LogLevel to \"debug\" to find out " | |
1718 | "more."); | |
3dfe78b3 MS |
1719 | } |
1720 | else | |
dcb445bc MS |
1721 | cupsdLogJob(job, CUPSD_LOG_DEBUG, "PID %d (%s) exited with no errors.", |
1722 | pid, name); | |
ef416fc2 | 1723 | } |
dfd5680b MS |
1724 | |
1725 | /* | |
1726 | * If wait*() is interrupted by a signal, tell main() to call us again... | |
1727 | */ | |
1728 | ||
1729 | if (pid < 0 && errno == EINTR) | |
1730 | dead_children = 1; | |
ef416fc2 | 1731 | } |
1732 | ||
1733 | ||
ef416fc2 | 1734 | /* |
1735 | * 'select_timeout()' - Calculate the select timeout value. | |
1736 | * | |
1737 | */ | |
1738 | ||
1739 | static long /* O - Number of seconds */ | |
bd7854cb | 1740 | select_timeout(int fds) /* I - Number of descriptors returned */ |
ef416fc2 | 1741 | { |
ef416fc2 | 1742 | long timeout; /* Timeout for select */ |
1743 | time_t now; /* Current time */ | |
1744 | cupsd_client_t *con; /* Client information */ | |
ef416fc2 | 1745 | cupsd_job_t *job; /* Job information */ |
1746 | cupsd_subscription_t *sub; /* Subscription information */ | |
1747 | const char *why; /* Debugging aid */ | |
1748 | ||
1749 | ||
82cc1f9a MS |
1750 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout: JobHistoryUpdate=%ld", |
1751 | (long)JobHistoryUpdate); | |
1752 | ||
ef416fc2 | 1753 | /* |
1754 | * Check to see if any of the clients have pending data to be | |
1755 | * processed; if so, the timeout should be 0... | |
1756 | */ | |
1757 | ||
996acce8 | 1758 | // TODO: Use httpGetReady() |
bd7854cb | 1759 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
1760 | con; | |
1761 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
996acce8 | 1762 | if (con->http->used > 0) |
ef416fc2 | 1763 | return (0); |
1764 | ||
1765 | /* | |
f7deaa1a | 1766 | * If select has been active in the last second (fds > 0) or we have |
ef416fc2 | 1767 | * many resources in use then don't bother trying to optimize the |
1768 | * timeout, just make it 1 second. | |
1769 | */ | |
1770 | ||
f7deaa1a | 1771 | if (fds > 0 || cupsArrayCount(Clients) > 50) |
ef416fc2 | 1772 | return (1); |
1773 | ||
1774 | /* | |
1775 | * Otherwise, check all of the possible events that we need to wake for... | |
1776 | */ | |
1777 | ||
1778 | now = time(NULL); | |
1779 | timeout = now + 86400; /* 86400 == 1 day */ | |
1780 | why = "do nothing"; | |
1781 | ||
e6013cfa MS |
1782 | #ifdef __APPLE__ |
1783 | /* | |
1784 | * When going to sleep, wake up to cancel jobs that don't complete in time. | |
1785 | */ | |
1786 | ||
1787 | if (SleepJobs > 0 && SleepJobs < timeout) | |
1788 | { | |
1789 | timeout = SleepJobs; | |
1790 | why = "cancel jobs before sleeping"; | |
1791 | } | |
1792 | #endif /* __APPLE__ */ | |
1793 | ||
76cd9e37 MS |
1794 | /* |
1795 | * Check whether we are accepting new connections... | |
1796 | */ | |
1797 | ||
1798 | if (ListeningPaused > 0 && cupsArrayCount(Clients) < MaxClients && | |
1799 | ListeningPaused < timeout) | |
1800 | { | |
1801 | if (ListeningPaused <= now) | |
1802 | timeout = now; | |
1803 | else | |
1804 | timeout = ListeningPaused; | |
1805 | ||
1806 | why = "resume listening"; | |
1807 | } | |
1808 | ||
ef416fc2 | 1809 | /* |
1810 | * Check the activity and close old clients... | |
1811 | */ | |
1812 | ||
996acce8 | 1813 | // TODO: Use httpGetActivity() |
bd7854cb | 1814 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
1815 | con; | |
1816 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
996acce8 | 1817 | if ((con->http->activity + Timeout) < timeout) |
ef416fc2 | 1818 | { |
996acce8 | 1819 | timeout = con->http->activity + Timeout; |
ef416fc2 | 1820 | why = "timeout a client connection"; |
1821 | } | |
1822 | ||
3dfe78b3 | 1823 | /* |
bf3816c7 | 1824 | * Write out changes to configuration and state files... |
3dfe78b3 MS |
1825 | */ |
1826 | ||
1827 | if (DirtyCleanTime && timeout > DirtyCleanTime) | |
1828 | { | |
1829 | timeout = DirtyCleanTime; | |
1830 | why = "write dirty config/state files"; | |
1831 | } | |
1832 | ||
ef416fc2 | 1833 | /* |
82cc1f9a | 1834 | * Check for any job activity... |
ef416fc2 | 1835 | */ |
1836 | ||
82cc1f9a MS |
1837 | if (JobHistoryUpdate && timeout > JobHistoryUpdate) |
1838 | { | |
1839 | timeout = JobHistoryUpdate; | |
1840 | why = "update job history"; | |
1841 | } | |
1842 | ||
238c3832 MS |
1843 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); |
1844 | job; | |
1845 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
ef416fc2 | 1846 | { |
82cc1f9a MS |
1847 | if (job->cancel_time && job->cancel_time < timeout) |
1848 | { | |
1849 | timeout = job->cancel_time; | |
1850 | why = "cancel stuck jobs"; | |
1851 | } | |
1852 | ||
238c3832 MS |
1853 | if (job->kill_time && job->kill_time < timeout) |
1854 | { | |
1855 | timeout = job->kill_time; | |
1856 | why = "kill unresponsive jobs"; | |
1857 | } | |
82cc1f9a MS |
1858 | |
1859 | if (job->state_value == IPP_JOB_HELD && job->hold_until < timeout) | |
238c3832 MS |
1860 | { |
1861 | timeout = job->hold_until; | |
1862 | why = "release held jobs"; | |
1863 | } | |
82cc1f9a MS |
1864 | |
1865 | if (job->state_value == IPP_JOB_PENDING && timeout > (now + 10)) | |
238c3832 MS |
1866 | { |
1867 | timeout = now + 10; | |
1868 | why = "start pending jobs"; | |
1869 | break; | |
1870 | } | |
ef416fc2 | 1871 | } |
1872 | ||
1873 | #ifdef HAVE_MALLINFO | |
1874 | /* | |
1875 | * Log memory usage every minute... | |
1876 | */ | |
1877 | ||
1878 | if (LogLevel >= CUPSD_LOG_DEBUG && (mallinfo_time + 60) < timeout) | |
1879 | { | |
1880 | timeout = mallinfo_time + 60; | |
1881 | why = "display memory usage"; | |
1882 | } | |
1883 | #endif /* HAVE_MALLINFO */ | |
1884 | ||
ef416fc2 | 1885 | /* |
1886 | * Expire subscriptions as needed... | |
1887 | */ | |
1888 | ||
1889 | for (sub = (cupsd_subscription_t *)cupsArrayFirst(Subscriptions); | |
1890 | sub; | |
1891 | sub = (cupsd_subscription_t *)cupsArrayNext(Subscriptions)) | |
bd7854cb | 1892 | if (!sub->job && sub->expire && sub->expire < timeout) |
ef416fc2 | 1893 | { |
1894 | timeout = sub->expire; | |
1895 | why = "expire subscription"; | |
1896 | } | |
1897 | ||
1898 | /* | |
dcb445bc MS |
1899 | * Adjust from absolute to relative time. We add 1 second to the timeout since |
1900 | * events occur after the timeout expires, and limit the timeout to 86400 | |
1901 | * seconds (1 day) to avoid select() timeout limits present on some operating | |
ef416fc2 | 1902 | * systems... |
1903 | */ | |
1904 | ||
1905 | timeout = timeout - now + 1; | |
1906 | ||
1907 | if (timeout < 1) | |
1908 | timeout = 1; | |
1909 | else if (timeout > 86400) | |
1910 | timeout = 86400; | |
1911 | ||
1912 | /* | |
1913 | * Log and return the timeout value... | |
1914 | */ | |
1915 | ||
f7deaa1a | 1916 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout(%d): %ld seconds to %s", |
1917 | fds, timeout, why); | |
ef416fc2 | 1918 | |
1919 | return (timeout); | |
1920 | } | |
1921 | ||
1922 | ||
e6013cfa MS |
1923 | /* |
1924 | * 'sigchld_handler()' - Handle 'child' signals from old processes. | |
1925 | */ | |
1926 | ||
1927 | static void | |
1928 | sigchld_handler(int sig) /* I - Signal number */ | |
1929 | { | |
1930 | (void)sig; | |
1931 | ||
1932 | /* | |
1933 | * Flag that we have dead children... | |
1934 | */ | |
1935 | ||
1936 | dead_children = 1; | |
1937 | ||
1938 | /* | |
1939 | * Reset the signal handler as needed... | |
1940 | */ | |
1941 | ||
1942 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
1943 | signal(SIGCLD, sigchld_handler); | |
1944 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
1945 | } | |
1946 | ||
1947 | ||
1948 | /* | |
1949 | * 'sighup_handler()' - Handle 'hangup' signals to reconfigure the scheduler. | |
1950 | */ | |
1951 | ||
1952 | static void | |
1953 | sighup_handler(int sig) /* I - Signal number */ | |
1954 | { | |
1955 | (void)sig; | |
1956 | ||
1957 | NeedReload = RELOAD_ALL; | |
1958 | ReloadTime = time(NULL); | |
1959 | ||
1960 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
1961 | signal(SIGHUP, sighup_handler); | |
1962 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
1963 | } | |
1964 | ||
1965 | ||
1966 | /* | |
1967 | * 'sigterm_handler()' - Handle 'terminate' signals that stop the scheduler. | |
1968 | */ | |
1969 | ||
1970 | static void | |
1971 | sigterm_handler(int sig) /* I - Signal number */ | |
1972 | { | |
1973 | (void)sig; /* remove compiler warnings... */ | |
1974 | ||
1975 | /* | |
1976 | * Flag that we should stop and return... | |
1977 | */ | |
1978 | ||
1979 | stop_scheduler = 1; | |
1980 | } | |
1981 | ||
1982 | ||
ef416fc2 | 1983 | /* |
1984 | * 'usage()' - Show scheduler usage. | |
1985 | */ | |
1986 | ||
1987 | static void | |
a4d04587 | 1988 | usage(int status) /* O - Exit status */ |
ef416fc2 | 1989 | { |
0837b7e8 MS |
1990 | FILE *fp = status ? stderr : stdout; /* Output file */ |
1991 | ||
1992 | ||
1993 | _cupsLangPuts(fp, _("Usage: cupsd [options]")); | |
1994 | _cupsLangPuts(fp, _("Options:")); | |
f3c17241 | 1995 | _cupsLangPuts(fp, _(" -c cupsd.conf Set cupsd.conf file to use.")); |
84315f46 MS |
1996 | _cupsLangPuts(fp, _(" -f Run in the foreground.")); |
1997 | _cupsLangPuts(fp, _(" -F Run in the foreground but " | |
1998 | "detach from console.")); | |
1999 | _cupsLangPuts(fp, _(" -h Show this usage message.")); | |
2000 | _cupsLangPuts(fp, _(" -l Run cupsd from launchd(8).")); | |
2001 | _cupsLangPuts(fp, _(" -t Test the configuration " | |
0837b7e8 | 2002 | "file.")); |
0837b7e8 | 2003 | |
a4d04587 | 2004 | exit(status); |
ef416fc2 | 2005 | } |
2006 | ||
2007 | ||
2008 | /* | |
f2d18633 | 2009 | * End of "$Id$". |
ef416fc2 | 2010 | */ |