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Commit | Line | Data |
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ef416fc2 | 1 | /* |
581dae2d | 2 | * Main loop for the CUPS scheduler. |
ef416fc2 | 3 | * |
47b3bd03 | 4 | * Copyright © 2007-2019 by Apple Inc. |
c4b22214 | 5 | * Copyright © 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 6 | * |
eb2cb9b0 MS |
7 | * Licensed under Apache License v2.0. See the file "LICENSE" for more |
8 | * information. | |
ef416fc2 | 9 | */ |
10 | ||
11 | /* | |
12 | * Include necessary headers... | |
13 | */ | |
14 | ||
15 | #define _MAIN_C_ | |
16 | #include "cupsd.h" | |
17 | #include <sys/resource.h> | |
bbe495b0 MS |
18 | #ifdef __APPLE__ |
19 | # include <xpc/xpc.h> | |
2c3b8f53 | 20 | # include <pthread/qos.h> |
bbe495b0 | 21 | #endif /* __APPLE__ */ |
a1797929 MS |
22 | #ifdef HAVE_ASL_H |
23 | # include <asl.h> | |
24 | #elif defined(HAVE_SYSTEMD_SD_JOURNAL_H) | |
25 | # define SD_JOURNAL_SUPPRESS_LOCATION | |
26 | # include <systemd/sd-journal.h> | |
27 | #endif /* HAVE_ASL_H */ | |
ef416fc2 | 28 | #include <syslog.h> |
29 | #include <grp.h> | |
30 | ||
a4d04587 | 31 | #ifdef HAVE_LAUNCH_H |
32 | # include <launch.h> | |
a4d04587 | 33 | #endif /* HAVE_LAUNCH_H */ |
34 | ||
1720786e | 35 | #ifdef HAVE_SYSTEMD |
5950e7bd | 36 | # include <systemd/sd-daemon.h> |
1720786e MS |
37 | #endif /* HAVE_SYSTEMD */ |
38 | ||
441de8b2 BN |
39 | #ifdef HAVE_ONDEMAND |
40 | # define CUPS_KEEPALIVE CUPS_CACHEDIR "/org.cups.cupsd" | |
41 | /* Name of the KeepAlive file */ | |
03bc3ef4 | 42 | #endif /* HAVE_ONDEMAND */ |
441de8b2 | 43 | |
ef416fc2 | 44 | #if defined(HAVE_MALLOC_H) && defined(HAVE_MALLINFO) |
45 | # include <malloc.h> | |
46 | #endif /* HAVE_MALLOC_H && HAVE_MALLINFO */ | |
3dd9c340 | 47 | |
fa73b229 | 48 | #ifdef HAVE_NOTIFY_H |
49 | # include <notify.h> | |
50 | #endif /* HAVE_NOTIFY_H */ | |
ef416fc2 | 51 | |
e7f455a5 MS |
52 | #ifdef HAVE_DBUS |
53 | # include <dbus/dbus.h> | |
54 | #endif /* HAVE_DBUS */ | |
55 | ||
3dd9c340 MS |
56 | #ifdef HAVE_SYS_PARAM_H |
57 | # include <sys/param.h> | |
58 | #endif /* HAVE_SYS_PARAM_H */ | |
59 | ||
ef416fc2 | 60 | |
61 | /* | |
62 | * Local functions... | |
63 | */ | |
64 | ||
411affcf | 65 | static void parent_handler(int sig); |
66 | static void process_children(void); | |
67 | static void sigchld_handler(int sig); | |
68 | static void sighup_handler(int sig); | |
69 | static void sigterm_handler(int sig); | |
70 | static long select_timeout(int fds); | |
1720786e | 71 | static void service_checkin(void); |
03bc3ef4 | 72 | static void service_checkout(int shutdown); |
a32af27c | 73 | static void usage(int status) _CUPS_NORETURN; |
ef416fc2 | 74 | |
75 | ||
76 | /* | |
77 | * Local globals... | |
78 | */ | |
79 | ||
411affcf | 80 | static int parent_signal = 0; |
81 | /* Set to signal number from child */ | |
82 | static int holdcount = 0; /* Number of times "hold" was called */ | |
ef416fc2 | 83 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
411affcf | 84 | static sigset_t holdmask; /* Old POSIX signal mask */ |
ef416fc2 | 85 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ |
411affcf | 86 | static int dead_children = 0; |
87 | /* Dead children? */ | |
88 | static int stop_scheduler = 0; | |
89 | /* Should the scheduler stop? */ | |
e1bb4a6e | 90 | static time_t local_timeout = 0; |
3dee5db7 | 91 | /* Next local printer timeout */ |
411affcf | 92 | |
ef416fc2 | 93 | |
94 | /* | |
95 | * 'main()' - Main entry for the CUPS scheduler. | |
96 | */ | |
97 | ||
98 | int /* O - Exit status */ | |
bd7854cb | 99 | main(int argc, /* I - Number of command-line args */ |
ef416fc2 | 100 | char *argv[]) /* I - Command-line arguments */ |
101 | { | |
102 | int i; /* Looping var */ | |
103 | char *opt; /* Option character */ | |
108f7505 MS |
104 | int close_all = 1, /* Close all file descriptors? */ |
105 | disconnect = 1, /* Disconnect from controlling terminal? */ | |
106 | fg = 0, /* Run in foreground? */ | |
2dd94018 | 107 | run_as_child = 0, |
108f7505 | 108 | /* Running as child process? */ |
2dd94018 MS |
109 | print_profile = 0; |
110 | /* Print the sandbox profile to stdout? */ | |
bd7854cb | 111 | int fds; /* Number of ready descriptors */ |
ef416fc2 | 112 | cupsd_client_t *con; /* Current client */ |
113 | cupsd_job_t *job; /* Current job */ | |
114 | cupsd_listener_t *lis; /* Current listener */ | |
115 | time_t current_time, /* Current time */ | |
a4d04587 | 116 | activity, /* Client activity timer */ |
ef416fc2 | 117 | senddoc_time, /* Send-Document time */ |
411affcf | 118 | expire_time, /* Subscription expire time */ |
50fe7201 | 119 | report_time, /* Malloc/client/job report time */ |
5a662dc0 | 120 | event_time; /* Last event notification time */ |
f7deaa1a | 121 | long timeout; /* Timeout for cupsdDoSelect() */ |
ef416fc2 | 122 | struct rlimit limit; /* Runtime limit */ |
123 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
124 | struct sigaction action; /* Actions for POSIX signals */ | |
125 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
a41f09e2 | 126 | #ifdef __APPLE__ |
1deb86fd | 127 | int use_sysman = 1; /* Use system management functions? */ |
a4924f6c MS |
128 | #else |
129 | time_t netif_time = 0; /* Time since last network update */ | |
a41f09e2 | 130 | #endif /* __APPLE__ */ |
c187d9ab | 131 | #if defined(HAVE_ONDEMAND) |
a3081849 | 132 | int service_idle_exit = 0; |
a4d04587 | 133 | /* Idle exit on select timeout? */ |
c187d9ab | 134 | #endif /* HAVE_ONDEMAND */ |
ef416fc2 | 135 | |
136 | ||
db1f069b MS |
137 | #ifdef HAVE_GETEUID |
138 | /* | |
139 | * Check for setuid invocation, which we do not support! | |
140 | */ | |
141 | ||
142 | if (getuid() != geteuid()) | |
143 | { | |
1deb86fd | 144 | fputs("cupsd: Cannot run as a setuid program.\n", stderr); |
db1f069b MS |
145 | return (1); |
146 | } | |
147 | #endif /* HAVE_GETEUID */ | |
148 | ||
ef416fc2 | 149 | /* |
150 | * Check for command-line arguments... | |
151 | */ | |
152 | ||
4400e98d | 153 | fg = 0; |
ef416fc2 | 154 | |
155 | for (i = 1; i < argc; i ++) | |
c4b22214 MS |
156 | { |
157 | if (!strcmp(argv[i], "--help")) | |
065632e2 | 158 | usage(0); |
c4b22214 MS |
159 | else if (argv[i][0] == '-') |
160 | { | |
ef416fc2 | 161 | for (opt = argv[i] + 1; *opt != '\0'; opt ++) |
c4b22214 | 162 | { |
ef416fc2 | 163 | switch (*opt) |
164 | { | |
a41f09e2 MS |
165 | case 'C' : /* Run as child with config file */ |
166 | run_as_child = 1; | |
108f7505 MS |
167 | fg = 1; |
168 | close_all = 0; | |
a41f09e2 | 169 | |
ef416fc2 | 170 | case 'c' : /* Configuration file */ |
171 | i ++; | |
172 | if (i >= argc) | |
a4d04587 | 173 | { |
174 | _cupsLangPuts(stderr, _("cupsd: Expected config filename " | |
0837b7e8 | 175 | "after \"-c\" option.")); |
a4d04587 | 176 | usage(1); |
177 | } | |
ef416fc2 | 178 | |
179 | if (argv[i][0] == '/') | |
180 | { | |
181 | /* | |
182 | * Absolute directory... | |
183 | */ | |
184 | ||
185 | cupsdSetString(&ConfigurationFile, argv[i]); | |
186 | } | |
187 | else | |
188 | { | |
189 | /* | |
190 | * Relative directory... | |
191 | */ | |
192 | ||
09ec0018 | 193 | char *current; /* Current directory */ |
ef416fc2 | 194 | |
09ec0018 | 195 | /* |
196 | * Allocate a buffer for the current working directory to | |
197 | * reduce run-time stack usage; this approximates the | |
198 | * behavior of some implementations of getcwd() when they | |
199 | * are passed a NULL pointer. | |
200 | */ | |
201 | ||
91c84a35 MS |
202 | if ((current = malloc(1024)) == NULL) |
203 | { | |
204 | _cupsLangPuts(stderr, | |
0837b7e8 | 205 | _("cupsd: Unable to get current directory.")); |
91c84a35 MS |
206 | return (1); |
207 | } | |
208 | ||
209 | if (!getcwd(current, 1024)) | |
210 | { | |
211 | _cupsLangPuts(stderr, | |
0837b7e8 | 212 | _("cupsd: Unable to get current directory.")); |
91c84a35 MS |
213 | free(current); |
214 | return (1); | |
215 | } | |
09ec0018 | 216 | |
ef416fc2 | 217 | cupsdSetStringf(&ConfigurationFile, "%s/%s", current, argv[i]); |
09ec0018 | 218 | free(current); |
ef416fc2 | 219 | } |
220 | break; | |
221 | ||
222 | case 'f' : /* Run in foreground... */ | |
108f7505 MS |
223 | fg = 1; |
224 | disconnect = 0; | |
225 | close_all = 0; | |
ef416fc2 | 226 | break; |
227 | ||
bd7854cb | 228 | case 'F' : /* Run in foreground, but disconnect from terminal... */ |
108f7505 MS |
229 | fg = 1; |
230 | close_all = 0; | |
ef416fc2 | 231 | break; |
232 | ||
a4d04587 | 233 | case 'h' : /* Show usage/help */ |
234 | usage(0); | |
a4d04587 | 235 | |
441de8b2 | 236 | case 'l' : /* Started by launchd/systemd/upstart... */ |
03bc3ef4 | 237 | #ifdef HAVE_ONDEMAND |
108f7505 MS |
238 | OnDemand = 1; |
239 | fg = 1; | |
240 | close_all = 0; | |
241 | disconnect = 0; | |
a4d04587 | 242 | #else |
1720786e | 243 | _cupsLangPuts(stderr, _("cupsd: On-demand support not compiled " |
0837b7e8 | 244 | "in, running in normal mode.")); |
108f7505 MS |
245 | fg = 0; |
246 | disconnect = 1; | |
247 | close_all = 1; | |
c187d9ab | 248 | #endif /* HAVE_ONDEMAND */ |
a4d04587 | 249 | break; |
250 | ||
a74454a7 | 251 | case 'p' : /* Stop immediately for profiling */ |
5a662dc0 MS |
252 | fputs("cupsd: -p (startup profiling) is for internal testing " |
253 | "use only!\n", stderr); | |
a74454a7 | 254 | stop_scheduler = 1; |
255 | fg = 1; | |
108f7505 MS |
256 | disconnect = 0; |
257 | close_all = 0; | |
a74454a7 | 258 | break; |
259 | ||
1340db2d | 260 | case 'P' : /* Disable security profiles */ |
8fe0183a MS |
261 | fputs("cupsd: -P (disable sandboxing) is for internal testing use only.\n", stderr); |
262 | UseSandboxing = 0; | |
1340db2d MS |
263 | break; |
264 | ||
c41769ff MS |
265 | case 's' : /* Set cups-files.conf location */ |
266 | i ++; | |
267 | if (i >= argc) | |
268 | { | |
269 | _cupsLangPuts(stderr, _("cupsd: Expected cups-files.conf " | |
270 | "filename after \"-s\" option.")); | |
271 | usage(1); | |
272 | } | |
273 | ||
274 | if (argv[i][0] != '/') | |
275 | { | |
276 | /* | |
277 | * Relative filename not allowed... | |
278 | */ | |
279 | ||
280 | _cupsLangPuts(stderr, _("cupsd: Relative cups-files.conf " | |
281 | "filename not allowed.")); | |
282 | usage(1); | |
283 | } | |
284 | ||
285 | cupsdSetString(&CupsFilesFile, argv[i]); | |
286 | break; | |
287 | ||
68b10830 MS |
288 | #ifdef __APPLE__ |
289 | case 'S' : /* Disable system management functions */ | |
5a662dc0 MS |
290 | fputs("cupsd: -S (disable system management) for internal " |
291 | "testing use only!\n", stderr); | |
68b10830 MS |
292 | use_sysman = 0; |
293 | break; | |
294 | #endif /* __APPLE__ */ | |
295 | ||
2e4ff8af MS |
296 | case 't' : /* Test the cupsd.conf file... */ |
297 | TestConfigFile = 1; | |
298 | fg = 1; | |
108f7505 MS |
299 | disconnect = 0; |
300 | close_all = 0; | |
2e4ff8af MS |
301 | break; |
302 | ||
2dd94018 MS |
303 | case 'T' : /* Print security profile */ |
304 | print_profile = 1; | |
305 | fg = 1; | |
306 | disconnect = 0; | |
307 | close_all = 0; | |
308 | break; | |
309 | ||
ef416fc2 | 310 | default : /* Unknown option */ |
a4d04587 | 311 | _cupsLangPrintf(stderr, _("cupsd: Unknown option \"%c\" - " |
0837b7e8 | 312 | "aborting."), *opt); |
a4d04587 | 313 | usage(1); |
ef416fc2 | 314 | } |
c4b22214 MS |
315 | } |
316 | } | |
ef416fc2 | 317 | else |
318 | { | |
0837b7e8 | 319 | _cupsLangPrintf(stderr, _("cupsd: Unknown argument \"%s\" - aborting."), |
a4d04587 | 320 | argv[i]); |
321 | usage(1); | |
ef416fc2 | 322 | } |
c4b22214 | 323 | } |
ef416fc2 | 324 | |
325 | if (!ConfigurationFile) | |
326 | cupsdSetString(&ConfigurationFile, CUPS_SERVERROOT "/cupsd.conf"); | |
327 | ||
cb7f98ee MS |
328 | if (!CupsFilesFile) |
329 | { | |
330 | char *filename, /* Copy of cupsd.conf filename */ | |
331 | *slash; /* Final slash in cupsd.conf filename */ | |
332 | size_t len; /* Size of buffer */ | |
333 | ||
334 | len = strlen(ConfigurationFile) + 15; | |
335 | if ((filename = malloc(len)) == NULL) | |
336 | { | |
337 | _cupsLangPrintf(stderr, | |
338 | _("cupsd: Unable to get path to " | |
339 | "cups-files.conf file.")); | |
340 | return (1); | |
341 | } | |
342 | ||
343 | strlcpy(filename, ConfigurationFile, len); | |
344 | if ((slash = strrchr(filename, '/')) == NULL) | |
345 | { | |
507c4adc | 346 | free(filename); |
cb7f98ee MS |
347 | _cupsLangPrintf(stderr, |
348 | _("cupsd: Unable to get path to " | |
349 | "cups-files.conf file.")); | |
350 | return (1); | |
351 | } | |
352 | ||
7e86f2f6 | 353 | strlcpy(slash, "/cups-files.conf", len - (size_t)(slash - filename)); |
cb7f98ee MS |
354 | cupsdSetString(&CupsFilesFile, filename); |
355 | free(filename); | |
356 | } | |
357 | ||
108f7505 MS |
358 | if (disconnect) |
359 | { | |
360 | /* | |
361 | * Make sure we aren't tying up any filesystems... | |
362 | */ | |
363 | ||
364 | chdir("/"); | |
365 | ||
366 | /* | |
367 | * Disconnect from the controlling terminal... | |
368 | */ | |
369 | ||
370 | setsid(); | |
371 | } | |
372 | ||
373 | if (close_all) | |
374 | { | |
375 | /* | |
376 | * Close all open files... | |
377 | */ | |
378 | ||
379 | getrlimit(RLIMIT_NOFILE, &limit); | |
380 | ||
381 | for (i = 0; i < (int)limit.rlim_cur && i < 1024; i ++) | |
382 | close(i); | |
383 | ||
384 | /* | |
385 | * Redirect stdin/out/err to /dev/null... | |
386 | */ | |
387 | ||
388 | if ((i = open("/dev/null", O_RDONLY)) != 0) | |
389 | { | |
390 | dup2(i, 0); | |
391 | close(i); | |
392 | } | |
393 | ||
394 | if ((i = open("/dev/null", O_WRONLY)) != 1) | |
395 | { | |
396 | dup2(i, 1); | |
397 | close(i); | |
398 | } | |
399 | ||
400 | if ((i = open("/dev/null", O_WRONLY)) != 2) | |
401 | { | |
402 | dup2(i, 2); | |
403 | close(i); | |
404 | } | |
405 | } | |
a1797929 MS |
406 | else |
407 | LogStderr = cupsFileStderr(); | |
108f7505 | 408 | |
ef416fc2 | 409 | /* |
108f7505 | 410 | * Run in the background as needed... |
ef416fc2 | 411 | */ |
412 | ||
413 | if (!fg) | |
414 | { | |
415 | /* | |
416 | * Setup signal handlers for the parent... | |
417 | */ | |
418 | ||
419 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
420 | sigset(SIGUSR1, parent_handler); | |
421 | sigset(SIGCHLD, parent_handler); | |
422 | ||
423 | sigset(SIGHUP, SIG_IGN); | |
424 | #elif defined(HAVE_SIGACTION) | |
425 | memset(&action, 0, sizeof(action)); | |
426 | sigemptyset(&action.sa_mask); | |
427 | sigaddset(&action.sa_mask, SIGUSR1); | |
428 | action.sa_handler = parent_handler; | |
429 | sigaction(SIGUSR1, &action, NULL); | |
430 | sigaction(SIGCHLD, &action, NULL); | |
431 | ||
432 | sigemptyset(&action.sa_mask); | |
433 | action.sa_handler = SIG_IGN; | |
434 | sigaction(SIGHUP, &action, NULL); | |
435 | #else | |
436 | signal(SIGUSR1, parent_handler); | |
437 | signal(SIGCLD, parent_handler); | |
438 | ||
439 | signal(SIGHUP, SIG_IGN); | |
440 | #endif /* HAVE_SIGSET */ | |
441 | ||
442 | if (fork() > 0) | |
443 | { | |
444 | /* | |
445 | * OK, wait for the child to startup and send us SIGUSR1 or to crash | |
446 | * and the OS send us SIGCHLD... We also need to ignore SIGHUP which | |
447 | * might be sent by the init script to restart the scheduler... | |
448 | */ | |
449 | ||
450 | for (; parent_signal == 0;) | |
451 | sleep(1); | |
452 | ||
453 | if (parent_signal == SIGUSR1) | |
454 | return (0); | |
455 | ||
456 | if (wait(&i) < 0) | |
457 | { | |
458 | perror("cupsd"); | |
459 | return (1); | |
460 | } | |
461 | else if (WIFEXITED(i)) | |
462 | { | |
4d301e69 | 463 | fprintf(stderr, "cupsd: Child exited with status %d\n", |
bd7854cb | 464 | WEXITSTATUS(i)); |
ef416fc2 | 465 | return (2); |
466 | } | |
467 | else | |
468 | { | |
4d301e69 | 469 | fprintf(stderr, "cupsd: Child exited on signal %d\n", WTERMSIG(i)); |
ef416fc2 | 470 | return (3); |
471 | } | |
472 | } | |
a41f09e2 | 473 | |
3dd9c340 | 474 | #if defined(__OpenBSD__) && OpenBSD < 201211 |
68b10830 MS |
475 | /* |
476 | * Call _thread_sys_closefrom() so the child process doesn't reset the | |
477 | * parent's file descriptors to be blocking. This is a workaround for a | |
3dd9c340 | 478 | * limitation of userland libpthread on older versions of OpenBSD. |
68b10830 | 479 | */ |
ef55b745 | 480 | |
68b10830 | 481 | _thread_sys_closefrom(0); |
3dd9c340 | 482 | #endif /* __OpenBSD__ && OpenBSD < 201211 */ |
68b10830 | 483 | |
a41f09e2 | 484 | /* |
108f7505 MS |
485 | * Since many system libraries create fork-unsafe data on execution of a |
486 | * program, we need to re-execute the background cupsd with the "-C" and "-s" | |
487 | * options to avoid problems. Unfortunately, we also have to assume that | |
488 | * argv[0] contains the name of the cupsd executable - there is no portable | |
489 | * way to get the real pathname... | |
a41f09e2 MS |
490 | */ |
491 | ||
108f7505 | 492 | execlp(argv[0], argv[0], "-C", ConfigurationFile, "-s", CupsFilesFile, (char *)0); |
a41f09e2 | 493 | exit(errno); |
ef416fc2 | 494 | } |
495 | ||
e4e37194 MS |
496 | /* |
497 | * Let the system know we are busy while we bring up cupsd... | |
498 | */ | |
499 | ||
500 | cupsdSetBusyState(1); | |
501 | ||
ef416fc2 | 502 | /* |
503 | * Set the timezone info... | |
504 | */ | |
505 | ||
506 | tzset(); | |
507 | ||
508 | #ifdef LC_TIME | |
509 | setlocale(LC_TIME, ""); | |
510 | #endif /* LC_TIME */ | |
511 | ||
0cf0c416 MS |
512 | #ifdef HAVE_DBUS_THREADS_INIT |
513 | /* | |
514 | * Enable threading support for D-BUS... | |
515 | */ | |
516 | ||
e7f455a5 | 517 | dbus_threads_init_default(); |
0cf0c416 MS |
518 | #endif /* HAVE_DBUS_THREADS_INIT */ |
519 | ||
ef416fc2 | 520 | /* |
521 | * Set the maximum number of files... | |
522 | */ | |
523 | ||
524 | getrlimit(RLIMIT_NOFILE, &limit); | |
525 | ||
f7deaa1a | 526 | #if !defined(HAVE_POLL) && !defined(HAVE_EPOLL) && !defined(HAVE_KQUEUE) |
f7faf1f5 | 527 | if (limit.rlim_max > FD_SETSIZE) |
528 | MaxFDs = FD_SETSIZE; | |
ef416fc2 | 529 | else |
f7deaa1a | 530 | #endif /* !HAVE_POLL && !HAVE_EPOLL && !HAVE_KQUEUE */ |
531 | #ifdef RLIM_INFINITY | |
532 | if (limit.rlim_max == RLIM_INFINITY) | |
533 | MaxFDs = 16384; | |
534 | else | |
535 | #endif /* RLIM_INFINITY */ | |
ef416fc2 | 536 | MaxFDs = limit.rlim_max; |
537 | ||
7e86f2f6 | 538 | limit.rlim_cur = (rlim_t)MaxFDs; |
ef416fc2 | 539 | |
540 | setrlimit(RLIMIT_NOFILE, &limit); | |
541 | ||
f7deaa1a | 542 | cupsdStartSelect(); |
ef416fc2 | 543 | |
544 | /* | |
545 | * Read configuration... | |
546 | */ | |
547 | ||
548 | if (!cupsdReadConfiguration()) | |
ef416fc2 | 549 | return (1); |
2e4ff8af MS |
550 | else if (TestConfigFile) |
551 | { | |
cb7f98ee MS |
552 | printf("\"%s\" is OK.\n", CupsFilesFile); |
553 | printf("\"%s\" is OK.\n", ConfigurationFile); | |
2e4ff8af MS |
554 | return (0); |
555 | } | |
2dd94018 MS |
556 | else if (print_profile) |
557 | { | |
558 | cups_file_t *fp; /* File pointer */ | |
559 | const char *profile = cupsdCreateProfile(42, 0); | |
560 | /* Profile */ | |
561 | char line[1024]; /* Line from file */ | |
562 | ||
563 | ||
564 | if ((fp = cupsFileOpen(profile, "r")) == NULL) | |
565 | { | |
566 | printf("Unable to open profile file \"%s\": %s\n", profile ? profile : "(null)", strerror(errno)); | |
567 | return (1); | |
568 | } | |
569 | ||
570 | while (cupsFileGets(fp, line, sizeof(line))) | |
571 | puts(line); | |
572 | ||
573 | cupsFileClose(fp); | |
574 | ||
575 | return (0); | |
576 | } | |
ef416fc2 | 577 | |
ba55dc12 MS |
578 | /* |
579 | * Clean out old temp files and printer cache data. | |
580 | */ | |
cc0d019f | 581 | |
064e50fb | 582 | if (!RequestRoot || !strncmp(TempDir, RequestRoot, strlen(RequestRoot))) |
321d8d57 | 583 | cupsdCleanFiles(TempDir, NULL); |
cc0d019f | 584 | |
321d8d57 | 585 | cupsdCleanFiles(CacheDir, "*.ipp"); |
cc0d019f | 586 | |
03bc3ef4 MS |
587 | /* |
588 | * If we were started on demand by launchd or systemd get the listen sockets | |
589 | * file descriptors... | |
590 | */ | |
a4d04587 | 591 | |
03bc3ef4 MS |
592 | service_checkin(); |
593 | service_checkout(0); | |
a4d04587 | 594 | |
595 | /* | |
596 | * Startup the server... | |
597 | */ | |
598 | ||
6d2f911b MS |
599 | httpInitialize(); |
600 | ||
a4d04587 | 601 | cupsdStartServer(); |
602 | ||
ef416fc2 | 603 | /* |
604 | * Catch hangup and child signals and ignore broken pipes... | |
605 | */ | |
606 | ||
607 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
e1d6a774 | 608 | sigset(SIGCHLD, sigchld_handler); |
4744bd90 | 609 | sigset(SIGHUP, sighup_handler); |
ef416fc2 | 610 | sigset(SIGPIPE, SIG_IGN); |
611 | sigset(SIGTERM, sigterm_handler); | |
612 | #elif defined(HAVE_SIGACTION) | |
613 | memset(&action, 0, sizeof(action)); | |
614 | ||
e1d6a774 | 615 | sigemptyset(&action.sa_mask); |
616 | sigaddset(&action.sa_mask, SIGTERM); | |
617 | sigaddset(&action.sa_mask, SIGCHLD); | |
618 | action.sa_handler = sigchld_handler; | |
619 | sigaction(SIGCHLD, &action, NULL); | |
620 | ||
ef416fc2 | 621 | sigemptyset(&action.sa_mask); |
622 | sigaddset(&action.sa_mask, SIGHUP); | |
4744bd90 | 623 | action.sa_handler = sighup_handler; |
ef416fc2 | 624 | sigaction(SIGHUP, &action, NULL); |
625 | ||
626 | sigemptyset(&action.sa_mask); | |
627 | action.sa_handler = SIG_IGN; | |
628 | sigaction(SIGPIPE, &action, NULL); | |
629 | ||
630 | sigemptyset(&action.sa_mask); | |
631 | sigaddset(&action.sa_mask, SIGTERM); | |
632 | sigaddset(&action.sa_mask, SIGCHLD); | |
633 | action.sa_handler = sigterm_handler; | |
634 | sigaction(SIGTERM, &action, NULL); | |
635 | #else | |
e1d6a774 | 636 | signal(SIGCLD, sigchld_handler); /* No, SIGCLD isn't a typo... */ |
4744bd90 | 637 | signal(SIGHUP, sighup_handler); |
ef416fc2 | 638 | signal(SIGPIPE, SIG_IGN); |
639 | signal(SIGTERM, sigterm_handler); | |
640 | #endif /* HAVE_SIGSET */ | |
641 | ||
ef416fc2 | 642 | /* |
643 | * Initialize authentication certificates... | |
644 | */ | |
645 | ||
646 | cupsdInitCerts(); | |
647 | ||
648 | /* | |
649 | * If we are running in the background, signal the parent process that | |
650 | * we are up and running... | |
651 | */ | |
652 | ||
a41f09e2 | 653 | if (!fg || run_as_child) |
ef416fc2 | 654 | { |
655 | /* | |
656 | * Send a signal to the parent process, but only if the parent is | |
657 | * not PID 1 (init). This avoids accidentally shutting down the | |
658 | * system on OpenBSD if you CTRL-C the server before it is up... | |
659 | */ | |
660 | ||
661 | i = getppid(); /* Save parent PID to avoid race condition */ | |
662 | ||
663 | if (i != 1) | |
664 | kill(i, SIGUSR1); | |
665 | } | |
666 | ||
e1d6a774 | 667 | #ifdef __APPLE__ |
09ec0018 | 668 | /* |
669 | * Start power management framework... | |
670 | */ | |
671 | ||
1340db2d MS |
672 | if (use_sysman) |
673 | cupsdStartSystemMonitor(); | |
e1d6a774 | 674 | #endif /* __APPLE__ */ |
ef416fc2 | 675 | |
49d87452 MS |
676 | /* |
677 | * Send server-started event... | |
678 | */ | |
679 | ||
03bc3ef4 | 680 | #ifdef HAVE_ONDEMAND |
1720786e MS |
681 | if (OnDemand) |
682 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, "Scheduler started on demand."); | |
49d87452 | 683 | else |
c187d9ab | 684 | #endif /* HAVE_ONDEMAND */ |
49d87452 | 685 | if (fg) |
1720786e | 686 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, "Scheduler started in foreground."); |
49d87452 | 687 | else |
1720786e | 688 | cupsdAddEvent(CUPSD_EVENT_SERVER_STARTED, NULL, NULL, "Scheduler started in background."); |
49d87452 | 689 | |
e4e37194 MS |
690 | cupsdSetBusyState(0); |
691 | ||
ef416fc2 | 692 | /* |
693 | * Start any pending print jobs... | |
694 | */ | |
695 | ||
696 | cupsdCheckJobs(); | |
697 | ||
698 | /* | |
699 | * Loop forever... | |
700 | */ | |
701 | ||
50fe7201 | 702 | current_time = time(NULL); |
50fe7201 MS |
703 | event_time = current_time; |
704 | expire_time = current_time; | |
123cfe02 | 705 | local_timeout = 0; |
ef416fc2 | 706 | fds = 1; |
5bd77a73 | 707 | report_time = 0; |
50fe7201 | 708 | senddoc_time = current_time; |
ef416fc2 | 709 | |
710 | while (!stop_scheduler) | |
711 | { | |
ef416fc2 | 712 | /* |
713 | * Check if there are dead children to handle... | |
714 | */ | |
715 | ||
716 | if (dead_children) | |
717 | process_children(); | |
718 | ||
719 | /* | |
720 | * Check if we need to load the server configuration file... | |
721 | */ | |
722 | ||
723 | if (NeedReload) | |
724 | { | |
725 | /* | |
726 | * Close any idle clients... | |
727 | */ | |
728 | ||
bd7854cb | 729 | if (cupsArrayCount(Clients) > 0) |
ef416fc2 | 730 | { |
bd7854cb | 731 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
732 | con; | |
733 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
996acce8 | 734 | if (httpGetState(con->http) == HTTP_WAITING) |
ef416fc2 | 735 | cupsdCloseClient(con); |
ef416fc2 | 736 | else |
996acce8 | 737 | con->http->keep_alive = HTTP_KEEPALIVE_OFF; |
ef416fc2 | 738 | |
739 | cupsdPauseListening(); | |
740 | } | |
741 | ||
ef416fc2 | 742 | /* |
743 | * Restart if all clients are closed and all jobs finished, or | |
744 | * if the reload timeout has elapsed... | |
745 | */ | |
746 | ||
bd7854cb | 747 | if ((cupsArrayCount(Clients) == 0 && |
238c3832 | 748 | (cupsArrayCount(PrintingJobs) == 0 || NeedReload != RELOAD_ALL)) || |
ef416fc2 | 749 | (time(NULL) - ReloadTime) >= ReloadTimeout) |
750 | { | |
a4d04587 | 751 | /* |
752 | * Shutdown the server... | |
753 | */ | |
754 | ||
1166bf58 | 755 | #ifdef HAVE_ONDEMAND |
83d8789d | 756 | if (OnDemand) |
e9a4e9d6 | 757 | { |
f8688d73 | 758 | # ifndef HAVE_SYSTEMD /* Issue #5640: systemd doesn't actually support launch-on-demand services, need to fake it */ |
e9a4e9d6 | 759 | stop_scheduler = 1; |
f8688d73 | 760 | # endif /* HAVE_SYSTEMD */ |
83d8789d | 761 | break; |
e9a4e9d6 | 762 | } |
1166bf58 | 763 | #endif /* HAVE_ONDEMAND */ |
83d8789d | 764 | |
7cf5915e MS |
765 | DoingShutdown = 1; |
766 | ||
a4d04587 | 767 | cupsdStopServer(); |
768 | ||
769 | /* | |
770 | * Read configuration... | |
771 | */ | |
772 | ||
ef416fc2 | 773 | if (!cupsdReadConfiguration()) |
774 | { | |
250bb8a9 | 775 | #ifdef HAVE_SYSTEMD_SD_JOURNAL_H |
a1797929 MS |
776 | sd_journal_print(LOG_ERR, "Unable to read configuration file \"%s\" - exiting.", ConfigurationFile); |
777 | #else | |
778 | syslog(LOG_LPR, "Unable to read configuration file \'%s\' - exiting.", ConfigurationFile); | |
250bb8a9 | 779 | #endif /* HAVE_SYSTEMD_SD_JOURNAL_H */ |
a1797929 | 780 | |
ef416fc2 | 781 | break; |
782 | } | |
a4d04587 | 783 | |
a4d04587 | 784 | /* |
785 | * Startup the server... | |
786 | */ | |
787 | ||
7cf5915e MS |
788 | DoingShutdown = 0; |
789 | ||
a4d04587 | 790 | cupsdStartServer(); |
49d87452 MS |
791 | |
792 | /* | |
793 | * Send a server-restarted event... | |
794 | */ | |
795 | ||
796 | cupsdAddEvent(CUPSD_EVENT_SERVER_RESTARTED, NULL, NULL, | |
797 | "Scheduler restarted."); | |
ef416fc2 | 798 | } |
799 | } | |
800 | ||
801 | /* | |
f7deaa1a | 802 | * Check for available input or ready output. If cupsdDoSelect() |
803 | * returns 0 or -1, something bad happened and we should exit | |
804 | * immediately. | |
ef416fc2 | 805 | * |
806 | * Note that we at least have one listening socket open at all | |
807 | * times. | |
808 | */ | |
809 | ||
50fe7201 MS |
810 | if ((timeout = select_timeout(fds)) > 1 && LastEvent) |
811 | timeout = 1; | |
ef416fc2 | 812 | |
1166bf58 | 813 | #ifdef HAVE_ONDEMAND |
a4d04587 | 814 | /* |
9fc5c8d4 MS |
815 | * If no other work is scheduled and we're being controlled by launchd, |
816 | * systemd, etc. then timeout after 'IdleExitTimeout' seconds of | |
a4d04587 | 817 | * inactivity... |
818 | */ | |
819 | ||
9bdea94b | 820 | if (timeout == 86400 && OnDemand && IdleExitTimeout && |
0627e869 MS |
821 | # ifdef HAVE_SYSTEMD |
822 | !WebInterface && | |
823 | # endif /* HAVE_SYSTEMD */ | |
9fc5c8d4 | 824 | !cupsArrayCount(ActiveJobs)) |
a4d04587 | 825 | { |
9fc5c8d4 MS |
826 | cupsd_printer_t *p = NULL; /* Current printer */ |
827 | ||
828 | if (Browsing && BrowseLocalProtocols) | |
829 | { | |
830 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); p; p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
831 | if (p->shared) | |
832 | break; | |
833 | } | |
834 | ||
835 | if (!p) | |
836 | { | |
837 | timeout = IdleExitTimeout; | |
838 | service_idle_exit = 1; | |
839 | } | |
a4d04587 | 840 | } |
841 | else | |
1720786e | 842 | service_idle_exit = 0; |
c187d9ab | 843 | #endif /* HAVE_ONDEMAND */ |
a4d04587 | 844 | |
f7deaa1a | 845 | if ((fds = cupsdDoSelect(timeout)) < 0) |
ef416fc2 | 846 | { |
ef416fc2 | 847 | /* |
848 | * Got an error from select! | |
849 | */ | |
850 | ||
37e7e6e0 | 851 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
f7deaa1a | 852 | cupsd_printer_t *p; /* Current printer */ |
37e7e6e0 | 853 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
f7deaa1a | 854 | |
f7deaa1a | 855 | if (errno == EINTR) /* Just interrupted by a signal */ |
ef416fc2 | 856 | continue; |
857 | ||
858 | /* | |
859 | * Log all sorts of debug info to help track down the problem. | |
860 | */ | |
861 | ||
f7deaa1a | 862 | cupsdLogMessage(CUPSD_LOG_EMERG, "cupsdDoSelect() failed - %s!", |
ef416fc2 | 863 | strerror(errno)); |
864 | ||
bd7854cb | 865 | for (i = 0, con = (cupsd_client_t *)cupsArrayFirst(Clients); |
866 | con; | |
867 | i ++, con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 868 | cupsdLogMessage(CUPSD_LOG_EMERG, |
869 | "Clients[%d] = %d, file = %d, state = %d", | |
996acce8 | 870 | i, con->number, con->file, httpGetState(con->http)); |
ef416fc2 | 871 | |
bd7854cb | 872 | for (i = 0, lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); |
873 | lis; | |
874 | i ++, lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
ef416fc2 | 875 | cupsdLogMessage(CUPSD_LOG_EMERG, "Listeners[%d] = %d", i, lis->fd); |
876 | ||
923edb68 | 877 | cupsdLogMessage(CUPSD_LOG_EMERG, "CGIPipes[0] = %d", CGIPipes[0]); |
878 | ||
09ec0018 | 879 | #ifdef __APPLE__ |
880 | cupsdLogMessage(CUPSD_LOG_EMERG, "SysEventPipes[0] = %d", | |
881 | SysEventPipes[0]); | |
882 | #endif /* __APPLE__ */ | |
883 | ||
ef416fc2 | 884 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); |
885 | job; | |
886 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
887 | cupsdLogMessage(CUPSD_LOG_EMERG, "Jobs[%d] = %d < [%d %d] > [%d %d]", | |
888 | job->id, | |
889 | job->status_buffer ? job->status_buffer->fd : -1, | |
890 | job->print_pipes[0], job->print_pipes[1], | |
891 | job->back_pipes[0], job->back_pipes[1]); | |
f7deaa1a | 892 | |
37e7e6e0 | 893 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
f7deaa1a | 894 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); |
895 | p; | |
896 | p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
7a14d768 MS |
897 | cupsdLogMessage(CUPSD_LOG_EMERG, "printer[%s] reg_name=\"%s\"", p->name, |
898 | p->reg_name ? p->reg_name : "(null)"); | |
37e7e6e0 | 899 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
f7deaa1a | 900 | |
ef416fc2 | 901 | break; |
902 | } | |
903 | ||
904 | current_time = time(NULL); | |
905 | ||
3dfe78b3 MS |
906 | /* |
907 | * Write dirty config/state files... | |
908 | */ | |
909 | ||
eb2cb9b0 | 910 | if (DirtyCleanTime && current_time >= DirtyCleanTime) |
3dfe78b3 | 911 | cupsdCleanDirty(); |
3dfe78b3 | 912 | |
e6013cfa MS |
913 | #ifdef __APPLE__ |
914 | /* | |
915 | * If we are going to sleep and still have pending jobs, stop them after | |
916 | * a period of time... | |
917 | */ | |
918 | ||
919 | if (SleepJobs > 0 && current_time >= SleepJobs && | |
920 | cupsArrayCount(PrintingJobs) > 0) | |
921 | { | |
922 | SleepJobs = 0; | |
e60ec91f | 923 | cupsdStopAllJobs(CUPSD_JOB_DEFAULT, 5); |
e6013cfa MS |
924 | } |
925 | #endif /* __APPLE__ */ | |
926 | ||
a4924f6c MS |
927 | #ifndef __APPLE__ |
928 | /* | |
929 | * Update the network interfaces once a minute... | |
930 | */ | |
931 | ||
932 | if ((current_time - netif_time) >= 60) | |
933 | { | |
934 | netif_time = current_time; | |
935 | NetIFUpdate = 1; | |
936 | } | |
937 | #endif /* !__APPLE__ */ | |
938 | ||
1166bf58 | 939 | #ifdef HAVE_ONDEMAND |
a4d04587 | 940 | /* |
1166bf58 MS |
941 | * If no other work was scheduled and we're being controlled by launchd, |
942 | * systemd, or upstart then timeout after 'LaunchdTimeout' seconds of | |
943 | * inactivity... | |
a4d04587 | 944 | */ |
945 | ||
1720786e | 946 | if (!fds && service_idle_exit) |
a4d04587 | 947 | { |
948 | cupsdLogMessage(CUPSD_LOG_INFO, | |
949 | "Printer sharing is off and there are no jobs pending, " | |
950 | "will restart on demand."); | |
951 | stop_scheduler = 1; | |
952 | break; | |
953 | } | |
c187d9ab | 954 | #endif /* HAVE_ONDEMAND */ |
a4d04587 | 955 | |
76cd9e37 MS |
956 | /* |
957 | * Resume listening for new connections as needed... | |
958 | */ | |
959 | ||
960 | if (ListeningPaused && ListeningPaused <= current_time && | |
961 | cupsArrayCount(Clients) < MaxClients) | |
962 | cupsdResumeListening(); | |
963 | ||
ef416fc2 | 964 | /* |
bd7854cb | 965 | * Expire subscriptions and unload completed jobs as needed... |
ef416fc2 | 966 | */ |
967 | ||
bd7854cb | 968 | if (current_time > expire_time) |
ef416fc2 | 969 | { |
47b3bd03 | 970 | cupsdExpireSubscriptions(NULL, NULL); |
bd7854cb | 971 | |
972 | cupsdUnloadCompletedJobs(); | |
ef416fc2 | 973 | |
974 | expire_time = current_time; | |
975 | } | |
976 | ||
e1bb4a6e MS |
977 | /* |
978 | * Delete stale local printers... | |
979 | */ | |
980 | ||
981 | if (current_time >= local_timeout) | |
123cfe02 | 982 | { |
e1bb4a6e | 983 | cupsdDeleteTemporaryPrinters(0); |
123cfe02 MS |
984 | local_timeout = 0; |
985 | } | |
e1bb4a6e | 986 | |
07ed0e9a | 987 | #ifndef HAVE_AUTHORIZATION_H |
ef416fc2 | 988 | /* |
f7deaa1a | 989 | * Update the root certificate once every 5 minutes if we have client |
990 | * connections... | |
ef416fc2 | 991 | */ |
992 | ||
f7deaa1a | 993 | if ((current_time - RootCertTime) >= RootCertDuration && RootCertDuration && |
994 | !RunUser && cupsArrayCount(Clients)) | |
995 | { | |
996 | /* | |
997 | * Update the root certificate... | |
998 | */ | |
999 | ||
1000 | cupsdDeleteCert(0); | |
0fa6c7fa | 1001 | cupsdAddCert(0, "root", cupsdDefaultAuthType()); |
f7deaa1a | 1002 | } |
07ed0e9a | 1003 | #endif /* !HAVE_AUTHORIZATION_H */ |
ef416fc2 | 1004 | |
9bdea94b MS |
1005 | /* |
1006 | * Clean job history... | |
1007 | */ | |
1008 | ||
1009 | if (JobHistoryUpdate && current_time >= JobHistoryUpdate) | |
1010 | cupsdCleanJobs(); | |
1011 | ||
1012 | /* | |
1013 | * Update any pending multi-file documents... | |
1014 | */ | |
1015 | ||
1016 | if ((current_time - senddoc_time) >= 10) | |
1017 | { | |
1018 | cupsdCheckJobs(); | |
1019 | senddoc_time = current_time; | |
1020 | } | |
1021 | ||
ef416fc2 | 1022 | /* |
1023 | * Check for new data on the client sockets... | |
1024 | */ | |
1025 | ||
bd7854cb | 1026 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
1027 | con; | |
1028 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
ef416fc2 | 1029 | { |
1030 | /* | |
f7deaa1a | 1031 | * Process pending data in the input buffer... |
ef416fc2 | 1032 | */ |
1033 | ||
1720786e | 1034 | if (httpGetReady(con->http)) |
ef416fc2 | 1035 | { |
f7deaa1a | 1036 | cupsdReadClient(con); |
1037 | continue; | |
ef416fc2 | 1038 | } |
1039 | ||
1040 | /* | |
1041 | * Check the activity and close old clients... | |
1042 | */ | |
1043 | ||
1044 | activity = current_time - Timeout; | |
1720786e | 1045 | if (httpGetActivity(con->http) < activity && !con->pipe_pid) |
ef416fc2 | 1046 | { |
1720786e | 1047 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Closing client %d after %d seconds of inactivity.", con->number, Timeout); |
ef416fc2 | 1048 | |
1049 | cupsdCloseClient(con); | |
ef416fc2 | 1050 | continue; |
1051 | } | |
1052 | } | |
1053 | ||
ef416fc2 | 1054 | /* |
5bd77a73 | 1055 | * Log statistics at most once a minute when in debug mode... |
ef416fc2 | 1056 | */ |
1057 | ||
5bd77a73 | 1058 | if ((current_time - report_time) >= 60 && LogLevel >= CUPSD_LOG_DEBUG) |
ef416fc2 | 1059 | { |
5bd77a73 MS |
1060 | size_t string_count, /* String count */ |
1061 | alloc_bytes, /* Allocated string bytes */ | |
1062 | total_bytes; /* Total string bytes */ | |
4400e98d | 1063 | #ifdef HAVE_MALLINFO |
5bd77a73 | 1064 | struct mallinfo mem; /* Malloc information */ |
ef416fc2 | 1065 | |
1066 | ||
1067 | mem = mallinfo(); | |
5bd77a73 MS |
1068 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-arena=%lu", mem.arena); |
1069 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-used=%lu", | |
1070 | mem.usmblks + mem.uordblks); | |
1071 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: malloc-free=%lu", | |
ef416fc2 | 1072 | mem.fsmblks + mem.fordblks); |
4400e98d | 1073 | #endif /* HAVE_MALLINFO */ |
1074 | ||
5bd77a73 MS |
1075 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: clients=%d", |
1076 | cupsArrayCount(Clients)); | |
1077 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: jobs=%d", | |
1078 | cupsArrayCount(Jobs)); | |
1079 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: jobs-active=%d", | |
1080 | cupsArrayCount(ActiveJobs)); | |
1081 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Report: printers=%d", | |
1082 | cupsArrayCount(Printers)); | |
5bd77a73 | 1083 | |
757d2cad | 1084 | string_count = _cupsStrStatistics(&alloc_bytes, &total_bytes); |
5bd77a73 MS |
1085 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
1086 | "Report: stringpool-string-count=" CUPS_LLFMT, | |
1087 | CUPS_LLCAST string_count); | |
1088 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1089 | "Report: stringpool-alloc-bytes=" CUPS_LLFMT, | |
1090 | CUPS_LLCAST alloc_bytes); | |
1091 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
1092 | "Report: stringpool-total-bytes=" CUPS_LLFMT, | |
4400e98d | 1093 | CUPS_LLCAST total_bytes); |
1094 | ||
5bd77a73 | 1095 | report_time = current_time; |
ef416fc2 | 1096 | } |
ef416fc2 | 1097 | |
fa73b229 | 1098 | /* |
1099 | * Handle OS-specific event notification for any events that have | |
1100 | * accumulated. Don't send these more than once a second... | |
1101 | */ | |
1102 | ||
50fe7201 | 1103 | if (LastEvent && (current_time - event_time) >= 1) |
fa73b229 | 1104 | { |
1105 | #ifdef HAVE_NOTIFY_POST | |
a41f09e2 MS |
1106 | if (LastEvent & (CUPSD_EVENT_PRINTER_ADDED | |
1107 | CUPSD_EVENT_PRINTER_DELETED | | |
1108 | CUPSD_EVENT_PRINTER_MODIFIED)) | |
fa73b229 | 1109 | { |
e00b005a | 1110 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1111 | "notify_post(\"com.apple.printerListChange\")"); |
1112 | notify_post("com.apple.printerListChange"); | |
1113 | } | |
1114 | ||
1115 | if (LastEvent & CUPSD_EVENT_PRINTER_STATE_CHANGED) | |
1116 | { | |
e00b005a | 1117 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1118 | "notify_post(\"com.apple.printerHistoryChange\")"); |
1119 | notify_post("com.apple.printerHistoryChange"); | |
1120 | } | |
1121 | ||
1122 | if (LastEvent & (CUPSD_EVENT_JOB_STATE_CHANGED | | |
1123 | CUPSD_EVENT_JOB_CONFIG_CHANGED | | |
1124 | CUPSD_EVENT_JOB_PROGRESS)) | |
1125 | { | |
e00b005a | 1126 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
fa73b229 | 1127 | "notify_post(\"com.apple.jobChange\")"); |
1128 | notify_post("com.apple.jobChange"); | |
1129 | } | |
1130 | #endif /* HAVE_NOTIFY_POST */ | |
1131 | ||
1132 | /* | |
e53920b9 | 1133 | * Reset the accumulated events... |
fa73b229 | 1134 | */ |
1135 | ||
50fe7201 MS |
1136 | LastEvent = CUPSD_EVENT_NONE; |
1137 | event_time = current_time; | |
fa73b229 | 1138 | } |
ef416fc2 | 1139 | } |
1140 | ||
1141 | /* | |
1142 | * Log a message based on what happened... | |
1143 | */ | |
1144 | ||
1145 | if (stop_scheduler) | |
49d87452 | 1146 | { |
ef416fc2 | 1147 | cupsdLogMessage(CUPSD_LOG_INFO, "Scheduler shutting down normally."); |
49d87452 MS |
1148 | cupsdAddEvent(CUPSD_EVENT_SERVER_STOPPED, NULL, NULL, |
1149 | "Scheduler shutting down normally."); | |
1150 | } | |
ef416fc2 | 1151 | else |
49d87452 | 1152 | { |
ef416fc2 | 1153 | cupsdLogMessage(CUPSD_LOG_ERROR, |
1154 | "Scheduler shutting down due to program error."); | |
49d87452 MS |
1155 | cupsdAddEvent(CUPSD_EVENT_SERVER_STOPPED, NULL, NULL, |
1156 | "Scheduler shutting down due to program error."); | |
1157 | } | |
ef416fc2 | 1158 | |
1159 | /* | |
7ff4fea9 | 1160 | * Close all network clients... |
ef416fc2 | 1161 | */ |
1162 | ||
7cf5915e MS |
1163 | DoingShutdown = 1; |
1164 | ||
ef416fc2 | 1165 | cupsdStopServer(); |
1166 | ||
7ff4fea9 | 1167 | /* |
03bc3ef4 | 1168 | * Update the KeepAlive/PID file as needed... |
7ff4fea9 MS |
1169 | */ |
1170 | ||
03bc3ef4 | 1171 | service_checkout(1); |
7ff4fea9 MS |
1172 | |
1173 | /* | |
1174 | * Stop all jobs... | |
1175 | */ | |
1176 | ||
bd7854cb | 1177 | cupsdFreeAllJobs(); |
ef416fc2 | 1178 | |
b4974142 MS |
1179 | /* |
1180 | * Delete all temporary printers... | |
1181 | */ | |
1182 | ||
1183 | cupsdDeleteTemporaryPrinters(1); | |
1184 | ||
e1d6a774 | 1185 | #ifdef __APPLE__ |
7ff4fea9 MS |
1186 | /* |
1187 | * Stop monitoring system event monitoring... | |
1188 | */ | |
1189 | ||
1340db2d MS |
1190 | if (use_sysman) |
1191 | cupsdStopSystemMonitor(); | |
e1d6a774 | 1192 | #endif /* __APPLE__ */ |
09ec0018 | 1193 | |
f7deaa1a | 1194 | cupsdStopSelect(); |
ef416fc2 | 1195 | |
1196 | return (!stop_scheduler); | |
1197 | } | |
1198 | ||
1199 | ||
10d09e33 MS |
1200 | /* |
1201 | * 'cupsdAddString()' - Copy and add a string to an array. | |
1202 | */ | |
1203 | ||
1204 | int /* O - 1 on success, 0 on failure */ | |
1205 | cupsdAddString(cups_array_t **a, /* IO - String array */ | |
1206 | const char *s) /* I - String to copy and add */ | |
1207 | { | |
1208 | if (!*a) | |
1209 | *a = cupsArrayNew3((cups_array_func_t)strcmp, NULL, | |
1210 | (cups_ahash_func_t)NULL, 0, | |
5e6c3df7 MS |
1211 | (cups_acopy_func_t)strdup, |
1212 | (cups_afree_func_t)free); | |
10d09e33 MS |
1213 | |
1214 | return (cupsArrayAdd(*a, (char *)s)); | |
1215 | } | |
1216 | ||
1217 | ||
d7871c8c MS |
1218 | /* |
1219 | * 'cupsdCheckProcess()' - Tell the main loop to check for dead children. | |
1220 | */ | |
1221 | ||
1222 | void | |
1223 | cupsdCheckProcess(void) | |
1224 | { | |
1225 | /* | |
1226 | * Flag that we have dead children... | |
1227 | */ | |
1228 | ||
1229 | dead_children = 1; | |
1230 | } | |
1231 | ||
1232 | ||
10d09e33 MS |
1233 | /* |
1234 | * 'cupsdClearString()' - Clear a string. | |
1235 | */ | |
1236 | ||
1237 | void | |
1238 | cupsdClearString(char **s) /* O - String value */ | |
1239 | { | |
1240 | if (s && *s) | |
1241 | { | |
5e6c3df7 | 1242 | free(*s); |
10d09e33 MS |
1243 | *s = NULL; |
1244 | } | |
1245 | } | |
1246 | ||
1247 | ||
10d09e33 MS |
1248 | /* |
1249 | * 'cupsdFreeStrings()' - Free an array of strings. | |
1250 | */ | |
1251 | ||
1252 | void | |
1253 | cupsdFreeStrings(cups_array_t **a) /* IO - String array */ | |
1254 | { | |
1255 | if (*a) | |
1256 | { | |
1257 | cupsArrayDelete(*a); | |
1258 | *a = NULL; | |
1259 | } | |
1260 | } | |
1261 | ||
1262 | ||
1263 | /* | |
1264 | * 'cupsdHoldSignals()' - Hold child and termination signals. | |
1265 | */ | |
1266 | ||
1267 | void | |
1268 | cupsdHoldSignals(void) | |
1269 | { | |
1270 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
1271 | sigset_t newmask; /* New POSIX signal mask */ | |
1272 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
1273 | ||
1274 | ||
1275 | holdcount ++; | |
1276 | if (holdcount > 1) | |
1277 | return; | |
1278 | ||
1279 | #ifdef HAVE_SIGSET | |
1280 | sighold(SIGTERM); | |
1281 | sighold(SIGCHLD); | |
1282 | #elif defined(HAVE_SIGACTION) | |
1283 | sigemptyset(&newmask); | |
1284 | sigaddset(&newmask, SIGTERM); | |
1285 | sigaddset(&newmask, SIGCHLD); | |
1286 | sigprocmask(SIG_BLOCK, &newmask, &holdmask); | |
1287 | #endif /* HAVE_SIGSET */ | |
1288 | } | |
1289 | ||
1290 | ||
ef416fc2 | 1291 | /* |
1292 | * 'cupsdReleaseSignals()' - Release signals for delivery. | |
1293 | */ | |
1294 | ||
1295 | void | |
1296 | cupsdReleaseSignals(void) | |
1297 | { | |
1298 | holdcount --; | |
1299 | if (holdcount > 0) | |
1300 | return; | |
1301 | ||
1302 | #ifdef HAVE_SIGSET | |
1303 | sigrelse(SIGTERM); | |
1304 | sigrelse(SIGCHLD); | |
1305 | #elif defined(HAVE_SIGACTION) | |
1306 | sigprocmask(SIG_SETMASK, &holdmask, NULL); | |
1307 | #endif /* HAVE_SIGSET */ | |
1308 | } | |
1309 | ||
1310 | ||
1311 | /* | |
1312 | * 'cupsdSetString()' - Set a string value. | |
1313 | */ | |
1314 | ||
1315 | void | |
1316 | cupsdSetString(char **s, /* O - New string */ | |
1317 | const char *v) /* I - String value */ | |
1318 | { | |
1319 | if (!s || *s == v) | |
1320 | return; | |
1321 | ||
1322 | if (*s) | |
5e6c3df7 | 1323 | free(*s); |
ef416fc2 | 1324 | |
1325 | if (v) | |
5e6c3df7 | 1326 | *s = strdup(v); |
ef416fc2 | 1327 | else |
1328 | *s = NULL; | |
1329 | } | |
1330 | ||
1331 | ||
1332 | /* | |
1333 | * 'cupsdSetStringf()' - Set a formatted string value. | |
1334 | */ | |
1335 | ||
1336 | void | |
1337 | cupsdSetStringf(char **s, /* O - New string */ | |
1338 | const char *f, /* I - Printf-style format string */ | |
1339 | ...) /* I - Additional args as needed */ | |
1340 | { | |
94436c5a | 1341 | char v[65536 + 64]; /* Formatting string value */ |
ef416fc2 | 1342 | va_list ap; /* Argument pointer */ |
1343 | char *olds; /* Old string */ | |
1344 | ||
1345 | ||
1346 | if (!s) | |
1347 | return; | |
1348 | ||
1349 | olds = *s; | |
1350 | ||
1351 | if (f) | |
1352 | { | |
1353 | va_start(ap, f); | |
1354 | vsnprintf(v, sizeof(v), f, ap); | |
1355 | va_end(ap); | |
1356 | ||
5e6c3df7 | 1357 | *s = strdup(v); |
ef416fc2 | 1358 | } |
1359 | else | |
1360 | *s = NULL; | |
1361 | ||
1362 | if (olds) | |
5e6c3df7 | 1363 | free(olds); |
ef416fc2 | 1364 | } |
1365 | ||
1366 | ||
1367 | /* | |
1368 | * 'parent_handler()' - Catch USR1/CHLD signals... | |
1369 | */ | |
1370 | ||
1371 | static void | |
1372 | parent_handler(int sig) /* I - Signal */ | |
1373 | { | |
1374 | /* | |
1375 | * Store the signal we got from the OS and return... | |
1376 | */ | |
1377 | ||
1378 | parent_signal = sig; | |
1379 | } | |
1380 | ||
1381 | ||
1382 | /* | |
1383 | * 'process_children()' - Process all dead children... | |
1384 | */ | |
1385 | ||
1386 | static void | |
1387 | process_children(void) | |
1388 | { | |
1389 | int status; /* Exit status of child */ | |
b9faaae1 MS |
1390 | int pid, /* Process ID of child */ |
1391 | job_id; /* Job ID of child */ | |
ef416fc2 | 1392 | cupsd_job_t *job; /* Current job */ |
1393 | int i; /* Looping var */ | |
e00b005a | 1394 | char name[1024]; /* Process name */ |
dcb445bc | 1395 | const char *type; /* Type of program */ |
ef416fc2 | 1396 | |
1397 | ||
1398 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "process_children()"); | |
1399 | ||
1400 | /* | |
1401 | * Reset the dead_children flag... | |
1402 | */ | |
1403 | ||
1404 | dead_children = 0; | |
1405 | ||
1406 | /* | |
1407 | * Collect the exit status of some children... | |
1408 | */ | |
1409 | ||
1410 | #ifdef HAVE_WAITPID | |
1411 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0) | |
1412 | #elif defined(HAVE_WAIT3) | |
1413 | while ((pid = wait3(&status, WNOHANG, NULL)) > 0) | |
1414 | #else | |
1415 | if ((pid = wait(&status)) > 0) | |
1416 | #endif /* HAVE_WAITPID */ | |
1417 | { | |
ef416fc2 | 1418 | /* |
745129be | 1419 | * Collect the name of the process that finished... |
ef416fc2 | 1420 | */ |
1421 | ||
b9faaae1 | 1422 | cupsdFinishProcess(pid, name, sizeof(name), &job_id); |
e00b005a | 1423 | |
ef416fc2 | 1424 | /* |
1425 | * Delete certificates for CGI processes... | |
1426 | */ | |
1427 | ||
1428 | if (pid) | |
1429 | cupsdDeleteCert(pid); | |
1430 | ||
1431 | /* | |
b9faaae1 | 1432 | * Handle completed job filters... |
ef416fc2 | 1433 | */ |
1434 | ||
dcb445bc MS |
1435 | if (job_id > 0) |
1436 | job = cupsdFindJob(job_id); | |
1437 | else | |
1438 | job = NULL; | |
1439 | ||
1440 | if (job) | |
b9faaae1 MS |
1441 | { |
1442 | for (i = 0; job->filters[i]; i ++) | |
1443 | if (job->filters[i] == pid) | |
1444 | break; | |
1445 | ||
1446 | if (job->filters[i] || job->backend == pid) | |
ef416fc2 | 1447 | { |
b9faaae1 MS |
1448 | /* |
1449 | * OK, this process has gone away; what's left? | |
1450 | */ | |
1451 | ||
1452 | if (job->filters[i]) | |
dcb445bc | 1453 | { |
b9faaae1 | 1454 | job->filters[i] = -pid; |
dcb445bc MS |
1455 | type = "Filter"; |
1456 | } | |
b9faaae1 | 1457 | else |
dcb445bc | 1458 | { |
b9faaae1 | 1459 | job->backend = -pid; |
dcb445bc MS |
1460 | type = "Backend"; |
1461 | } | |
ef416fc2 | 1462 | |
b9faaae1 | 1463 | if (status && status != SIGTERM && status != SIGKILL && |
f3c17241 | 1464 | status != SIGPIPE) |
ef416fc2 | 1465 | { |
1466 | /* | |
b9faaae1 MS |
1467 | * An error occurred; save the exit status so we know to stop |
1468 | * the printer or cancel the job when all of the filters finish... | |
1469 | * | |
1470 | * A negative status indicates that the backend failed and the | |
1471 | * printer needs to be stopped. | |
f3c17241 MS |
1472 | * |
1473 | * In order to preserve the most serious status, we always log | |
1474 | * when a process dies due to a signal (e.g. SIGABRT, SIGSEGV, | |
1475 | * and SIGBUS) and prefer to log the backend exit status over a | |
1476 | * filter's. | |
ef416fc2 | 1477 | */ |
1478 | ||
f3c17241 MS |
1479 | int old_status = abs(job->status); |
1480 | ||
1481 | if (WIFSIGNALED(status) || /* This process crashed, or */ | |
1482 | !job->status || /* No process had a status, or */ | |
1483 | (!job->filters[i] && WIFEXITED(old_status))) | |
1484 | { /* Backend and filter didn't crash */ | |
1485 | if (job->filters[i]) | |
72a21348 | 1486 | { |
f3c17241 | 1487 | job->status = status; /* Filter failed */ |
72a21348 | 1488 | } |
f3c17241 | 1489 | else |
72a21348 | 1490 | { |
f3c17241 | 1491 | job->status = -status; /* Backend failed */ |
72a21348 MS |
1492 | |
1493 | if (job->current_file < job->num_files) | |
1494 | cupsdSetJobState(job, IPP_JOB_ABORTED, CUPSD_JOB_FORCE, "Canceling multi-file job due to backend failure."); | |
1495 | } | |
f3c17241 | 1496 | } |
ef416fc2 | 1497 | |
f11a948a | 1498 | if (job->state_value == IPP_JOB_PROCESSING && |
dcb445bc MS |
1499 | job->status_level > CUPSD_LOG_ERROR && |
1500 | (job->filters[i] || !WIFEXITED(status))) | |
ef416fc2 | 1501 | { |
f11a948a MS |
1502 | char message[1024]; /* New printer-state-message */ |
1503 | ||
1504 | ||
b9faaae1 | 1505 | job->status_level = CUPSD_LOG_ERROR; |
ef416fc2 | 1506 | |
dcb445bc | 1507 | snprintf(message, sizeof(message), "%s failed", type); |
f11a948a | 1508 | |
e07d4801 MS |
1509 | if (job->printer) |
1510 | { | |
f11a948a MS |
1511 | strlcpy(job->printer->state_message, message, |
1512 | sizeof(job->printer->state_message)); | |
e07d4801 MS |
1513 | } |
1514 | ||
1515 | if (!job->attrs) | |
1516 | cupsdLoadJob(job); | |
e00b005a | 1517 | |
e07d4801 | 1518 | if (!job->printer_message && job->attrs) |
e00b005a | 1519 | { |
b9faaae1 MS |
1520 | if ((job->printer_message = |
1521 | ippFindAttribute(job->attrs, "job-printer-state-message", | |
1522 | IPP_TAG_TEXT)) == NULL) | |
1523 | job->printer_message = ippAddString(job->attrs, IPP_TAG_JOB, | |
1524 | IPP_TAG_TEXT, | |
1525 | "job-printer-state-message", | |
5a662dc0 | 1526 | NULL, NULL); |
e00b005a | 1527 | } |
b9faaae1 | 1528 | |
e07d4801 | 1529 | if (job->printer_message) |
5e6c3df7 | 1530 | ippSetString(job->attrs, &job->printer_message, 0, message); |
ef416fc2 | 1531 | } |
b9faaae1 | 1532 | } |
ef416fc2 | 1533 | |
b9faaae1 MS |
1534 | /* |
1535 | * If this is not the last file in a job, see if all of the | |
1536 | * filters are done, and if so move to the next file. | |
1537 | */ | |
ef416fc2 | 1538 | |
5a4c3fcf MS |
1539 | if (job->state_value >= IPP_JOB_CANCELED) |
1540 | { | |
1541 | /* | |
1542 | * Remove the job from the active list if there are no processes still | |
1543 | * running for it... | |
1544 | */ | |
1545 | ||
1546 | for (i = 0; job->filters[i] < 0; i++); | |
1547 | ||
1548 | if (!job->filters[i] && job->backend <= 0) | |
1549 | cupsArrayRemove(ActiveJobs, job); | |
1550 | } | |
1551 | else if (job->current_file < job->num_files && job->printer) | |
b9faaae1 MS |
1552 | { |
1553 | for (i = 0; job->filters[i] < 0; i ++); | |
ef416fc2 | 1554 | |
82f97232 MS |
1555 | if (!job->filters[i] && |
1556 | (!job->printer->pc || !job->printer->pc->single_file || | |
1557 | job->backend <= 0)) | |
b9faaae1 MS |
1558 | { |
1559 | /* | |
1560 | * Process the next file... | |
1561 | */ | |
ef416fc2 | 1562 | |
b9faaae1 | 1563 | cupsdContinueJob(job); |
ef416fc2 | 1564 | } |
ef416fc2 | 1565 | } |
1566 | } | |
b9faaae1 | 1567 | } |
3dfe78b3 MS |
1568 | |
1569 | /* | |
745129be MS |
1570 | * Show the exit status as needed, ignoring SIGTERM and SIGKILL errors |
1571 | * since they come when we kill/end a process... | |
3dfe78b3 MS |
1572 | */ |
1573 | ||
745129be MS |
1574 | if (status == SIGTERM || status == SIGKILL) |
1575 | { | |
dcb445bc MS |
1576 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1577 | "PID %d (%s) was terminated normally with signal %d.", pid, | |
1578 | name, status); | |
745129be | 1579 | } |
5a6b583a MS |
1580 | else if (status == SIGPIPE) |
1581 | { | |
dcb445bc MS |
1582 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1583 | "PID %d (%s) did not catch or ignore signal %d.", pid, name, | |
1584 | status); | |
5a6b583a | 1585 | } |
745129be | 1586 | else if (status) |
3dfe78b3 MS |
1587 | { |
1588 | if (WIFEXITED(status)) | |
88f9aafc MS |
1589 | { |
1590 | int code = WEXITSTATUS(status); /* Exit code */ | |
1591 | ||
1592 | if (code > 100) | |
dcb445bc MS |
1593 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1594 | "PID %d (%s) stopped with status %d (%s)", pid, name, | |
1595 | code, strerror(code - 100)); | |
88f9aafc | 1596 | else |
dcb445bc MS |
1597 | cupsdLogJob(job, CUPSD_LOG_DEBUG, |
1598 | "PID %d (%s) stopped with status %d.", pid, name, code); | |
88f9aafc | 1599 | } |
3dfe78b3 | 1600 | else |
dcb445bc MS |
1601 | cupsdLogJob(job, CUPSD_LOG_DEBUG, "PID %d (%s) crashed on signal %d.", |
1602 | pid, name, WTERMSIG(status)); | |
3dfe78b3 MS |
1603 | |
1604 | if (LogLevel < CUPSD_LOG_DEBUG) | |
dcb445bc MS |
1605 | cupsdLogJob(job, CUPSD_LOG_INFO, |
1606 | "Hint: Try setting the LogLevel to \"debug\" to find out " | |
1607 | "more."); | |
3dfe78b3 MS |
1608 | } |
1609 | else | |
dcb445bc MS |
1610 | cupsdLogJob(job, CUPSD_LOG_DEBUG, "PID %d (%s) exited with no errors.", |
1611 | pid, name); | |
ef416fc2 | 1612 | } |
dfd5680b MS |
1613 | |
1614 | /* | |
1615 | * If wait*() is interrupted by a signal, tell main() to call us again... | |
1616 | */ | |
1617 | ||
1618 | if (pid < 0 && errno == EINTR) | |
1619 | dead_children = 1; | |
ef416fc2 | 1620 | } |
1621 | ||
1622 | ||
ef416fc2 | 1623 | /* |
1624 | * 'select_timeout()' - Calculate the select timeout value. | |
1625 | * | |
1626 | */ | |
1627 | ||
1628 | static long /* O - Number of seconds */ | |
bd7854cb | 1629 | select_timeout(int fds) /* I - Number of descriptors returned */ |
ef416fc2 | 1630 | { |
ef416fc2 | 1631 | long timeout; /* Timeout for select */ |
1632 | time_t now; /* Current time */ | |
1633 | cupsd_client_t *con; /* Client information */ | |
ef416fc2 | 1634 | cupsd_job_t *job; /* Job information */ |
ef416fc2 | 1635 | const char *why; /* Debugging aid */ |
1636 | ||
1637 | ||
82cc1f9a MS |
1638 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout: JobHistoryUpdate=%ld", |
1639 | (long)JobHistoryUpdate); | |
1640 | ||
ef416fc2 | 1641 | /* |
1642 | * Check to see if any of the clients have pending data to be | |
1643 | * processed; if so, the timeout should be 0... | |
1644 | */ | |
1645 | ||
bd7854cb | 1646 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
1647 | con; | |
1648 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
1720786e | 1649 | if (httpGetReady(con->http)) |
ef416fc2 | 1650 | return (0); |
1651 | ||
1652 | /* | |
f7deaa1a | 1653 | * If select has been active in the last second (fds > 0) or we have |
ef416fc2 | 1654 | * many resources in use then don't bother trying to optimize the |
1655 | * timeout, just make it 1 second. | |
1656 | */ | |
1657 | ||
f7deaa1a | 1658 | if (fds > 0 || cupsArrayCount(Clients) > 50) |
ef416fc2 | 1659 | return (1); |
1660 | ||
1661 | /* | |
1662 | * Otherwise, check all of the possible events that we need to wake for... | |
1663 | */ | |
1664 | ||
1665 | now = time(NULL); | |
1666 | timeout = now + 86400; /* 86400 == 1 day */ | |
1667 | why = "do nothing"; | |
1668 | ||
e6013cfa MS |
1669 | #ifdef __APPLE__ |
1670 | /* | |
b4974142 | 1671 | * When going to sleep, wake up to abort jobs that don't complete in time. |
e6013cfa MS |
1672 | */ |
1673 | ||
1674 | if (SleepJobs > 0 && SleepJobs < timeout) | |
1675 | { | |
1676 | timeout = SleepJobs; | |
b4974142 | 1677 | why = "abort jobs before sleeping"; |
e6013cfa MS |
1678 | } |
1679 | #endif /* __APPLE__ */ | |
1680 | ||
76cd9e37 MS |
1681 | /* |
1682 | * Check whether we are accepting new connections... | |
1683 | */ | |
1684 | ||
1685 | if (ListeningPaused > 0 && cupsArrayCount(Clients) < MaxClients && | |
1686 | ListeningPaused < timeout) | |
1687 | { | |
1688 | if (ListeningPaused <= now) | |
1689 | timeout = now; | |
1690 | else | |
1691 | timeout = ListeningPaused; | |
1692 | ||
1693 | why = "resume listening"; | |
1694 | } | |
1695 | ||
ef416fc2 | 1696 | /* |
1697 | * Check the activity and close old clients... | |
1698 | */ | |
1699 | ||
bd7854cb | 1700 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
1701 | con; | |
1702 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
1720786e | 1703 | if ((httpGetActivity(con->http) + Timeout) < timeout) |
ef416fc2 | 1704 | { |
1720786e | 1705 | timeout = httpGetActivity(con->http) + Timeout; |
ef416fc2 | 1706 | why = "timeout a client connection"; |
1707 | } | |
1708 | ||
3dfe78b3 | 1709 | /* |
bf3816c7 | 1710 | * Write out changes to configuration and state files... |
3dfe78b3 MS |
1711 | */ |
1712 | ||
1713 | if (DirtyCleanTime && timeout > DirtyCleanTime) | |
1714 | { | |
1715 | timeout = DirtyCleanTime; | |
1716 | why = "write dirty config/state files"; | |
1717 | } | |
1718 | ||
ef416fc2 | 1719 | /* |
82cc1f9a | 1720 | * Check for any job activity... |
ef416fc2 | 1721 | */ |
1722 | ||
238c3832 MS |
1723 | for (job = (cupsd_job_t *)cupsArrayFirst(ActiveJobs); |
1724 | job; | |
1725 | job = (cupsd_job_t *)cupsArrayNext(ActiveJobs)) | |
ef416fc2 | 1726 | { |
82cc1f9a MS |
1727 | if (job->cancel_time && job->cancel_time < timeout) |
1728 | { | |
1729 | timeout = job->cancel_time; | |
1730 | why = "cancel stuck jobs"; | |
1731 | } | |
1732 | ||
238c3832 MS |
1733 | if (job->kill_time && job->kill_time < timeout) |
1734 | { | |
1735 | timeout = job->kill_time; | |
1736 | why = "kill unresponsive jobs"; | |
1737 | } | |
82cc1f9a MS |
1738 | |
1739 | if (job->state_value == IPP_JOB_HELD && job->hold_until < timeout) | |
238c3832 MS |
1740 | { |
1741 | timeout = job->hold_until; | |
1742 | why = "release held jobs"; | |
1743 | } | |
82cc1f9a MS |
1744 | |
1745 | if (job->state_value == IPP_JOB_PENDING && timeout > (now + 10)) | |
238c3832 MS |
1746 | { |
1747 | timeout = now + 10; | |
1748 | why = "start pending jobs"; | |
1749 | break; | |
1750 | } | |
ef416fc2 | 1751 | } |
1752 | ||
ef416fc2 | 1753 | /* |
dcb445bc MS |
1754 | * Adjust from absolute to relative time. We add 1 second to the timeout since |
1755 | * events occur after the timeout expires, and limit the timeout to 86400 | |
1756 | * seconds (1 day) to avoid select() timeout limits present on some operating | |
ef416fc2 | 1757 | * systems... |
1758 | */ | |
1759 | ||
1760 | timeout = timeout - now + 1; | |
1761 | ||
1762 | if (timeout < 1) | |
1763 | timeout = 1; | |
1764 | else if (timeout > 86400) | |
1765 | timeout = 86400; | |
1766 | ||
1767 | /* | |
1768 | * Log and return the timeout value... | |
1769 | */ | |
1770 | ||
f7deaa1a | 1771 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "select_timeout(%d): %ld seconds to %s", |
1772 | fds, timeout, why); | |
ef416fc2 | 1773 | |
1774 | return (timeout); | |
1775 | } | |
1776 | ||
1777 | ||
e6013cfa MS |
1778 | /* |
1779 | * 'sigchld_handler()' - Handle 'child' signals from old processes. | |
1780 | */ | |
1781 | ||
1782 | static void | |
1783 | sigchld_handler(int sig) /* I - Signal number */ | |
1784 | { | |
1785 | (void)sig; | |
1786 | ||
1787 | /* | |
1788 | * Flag that we have dead children... | |
1789 | */ | |
1790 | ||
1791 | dead_children = 1; | |
1792 | ||
1793 | /* | |
1794 | * Reset the signal handler as needed... | |
1795 | */ | |
1796 | ||
1797 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
1798 | signal(SIGCLD, sigchld_handler); | |
1799 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
1800 | } | |
1801 | ||
1802 | ||
1803 | /* | |
1804 | * 'sighup_handler()' - Handle 'hangup' signals to reconfigure the scheduler. | |
1805 | */ | |
1806 | ||
1807 | static void | |
1808 | sighup_handler(int sig) /* I - Signal number */ | |
1809 | { | |
1810 | (void)sig; | |
1811 | ||
1812 | NeedReload = RELOAD_ALL; | |
1813 | ReloadTime = time(NULL); | |
1814 | ||
1815 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
1816 | signal(SIGHUP, sighup_handler); | |
1817 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
1818 | } | |
1819 | ||
1820 | ||
1821 | /* | |
1822 | * 'sigterm_handler()' - Handle 'terminate' signals that stop the scheduler. | |
1823 | */ | |
1824 | ||
1825 | static void | |
1826 | sigterm_handler(int sig) /* I - Signal number */ | |
1827 | { | |
1828 | (void)sig; /* remove compiler warnings... */ | |
1829 | ||
1830 | /* | |
1831 | * Flag that we should stop and return... | |
1832 | */ | |
1833 | ||
1834 | stop_scheduler = 1; | |
1835 | } | |
1836 | ||
1837 | ||
1166bf58 | 1838 | #ifdef HAVE_ONDEMAND |
26c14fa6 | 1839 | /* |
1166bf58 | 1840 | * 'service_add_listener()' - Bind an open fd as a Listener. |
26c14fa6 BN |
1841 | */ |
1842 | ||
1843 | static void | |
1166bf58 MS |
1844 | service_add_listener(int fd, /* I - Socket file descriptor */ |
1845 | int idx) /* I - Listener number, for logging */ | |
26c14fa6 BN |
1846 | { |
1847 | cupsd_listener_t *lis; /* Listeners array */ | |
1848 | http_addr_t addr; /* Address variable */ | |
1849 | socklen_t addrlen; /* Length of address */ | |
1850 | char s[256]; /* String addresss */ | |
1851 | ||
1166bf58 | 1852 | |
26c14fa6 BN |
1853 | addrlen = sizeof(addr); |
1854 | ||
1855 | if (getsockname(fd, (struct sockaddr *)&addr, &addrlen)) | |
1856 | { | |
1166bf58 | 1857 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_add_listener: Unable to get local address for listener #%d: %s", idx + 1, strerror(errno)); |
26c14fa6 BN |
1858 | return; |
1859 | } | |
1860 | ||
1166bf58 | 1861 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_add_listener: Listener #%d at fd %d, \"%s\".", idx + 1, fd, httpAddrString(&addr, s, sizeof(s))); |
26c14fa6 | 1862 | |
1166bf58 MS |
1863 | /* |
1864 | * Try to match the on-demand socket address to one of the listeners... | |
1865 | */ | |
26c14fa6 BN |
1866 | |
1867 | for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners); | |
1868 | lis; | |
1869 | lis = (cupsd_listener_t *)cupsArrayNext(Listeners)) | |
1870 | if (httpAddrEqual(&lis->address, &addr)) | |
1871 | break; | |
1872 | ||
1873 | /* | |
1874 | * Add a new listener If there's no match... | |
1875 | */ | |
1876 | ||
1877 | if (lis) | |
1878 | { | |
1166bf58 | 1879 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_add_listener: Matched existing listener #%d to %s.", idx + 1, httpAddrString(&(lis->address), s, sizeof(s))); |
26c14fa6 BN |
1880 | } |
1881 | else | |
1882 | { | |
1166bf58 | 1883 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_add_listener: Adding new listener #%d for %s.", idx + 1, httpAddrString(&addr, s, sizeof(s))); |
26c14fa6 BN |
1884 | |
1885 | if ((lis = calloc(1, sizeof(cupsd_listener_t))) == NULL) | |
1886 | { | |
1166bf58 | 1887 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_add_listener: Unable to allocate listener: %s.", strerror(errno)); |
26c14fa6 | 1888 | exit(EXIT_FAILURE); |
26c14fa6 BN |
1889 | } |
1890 | ||
1891 | cupsArrayAdd(Listeners, lis); | |
1892 | ||
1893 | memcpy(&lis->address, &addr, sizeof(lis->address)); | |
1894 | } | |
1895 | ||
1896 | lis->fd = fd; | |
1897 | lis->on_demand = 1; | |
1898 | ||
1899 | # ifdef HAVE_SSL | |
1900 | if (httpAddrPort(&(lis->address)) == 443) | |
1901 | lis->encryption = HTTP_ENCRYPT_ALWAYS; | |
1902 | # endif /* HAVE_SSL */ | |
1903 | } | |
03bc3ef4 | 1904 | #endif /* HAVE_ONDEMAND */ |
26c14fa6 | 1905 | |
1166bf58 | 1906 | |
1720786e MS |
1907 | /* |
1908 | * 'service_checkin()' - Check-in with launchd and collect the listening fds. | |
1909 | */ | |
1910 | ||
1911 | static void | |
1912 | service_checkin(void) | |
1913 | { | |
1720786e MS |
1914 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: pid=%d", (int)getpid()); |
1915 | ||
03bc3ef4 MS |
1916 | #ifdef HAVE_LAUNCHD |
1917 | if (OnDemand) | |
1720786e | 1918 | { |
03bc3ef4 MS |
1919 | int error; /* Check-in error, if any */ |
1920 | size_t i, /* Looping var */ | |
1921 | count; /* Number of listeners */ | |
1922 | int *ld_sockets; /* Listener sockets */ | |
1720786e | 1923 | |
2c3b8f53 MS |
1924 | # ifdef __APPLE__ |
1925 | /* | |
1926 | * Force "user initiated" priority for the main thread... | |
1927 | */ | |
1928 | ||
1929 | pthread_set_qos_class_self_np(QOS_CLASS_USER_INITIATED, 0); | |
1930 | # endif /* __APPLE__ */ | |
1931 | ||
03bc3ef4 MS |
1932 | /* |
1933 | * Check-in with launchd... | |
1934 | */ | |
117466cd | 1935 | |
03bc3ef4 MS |
1936 | if ((error = launch_activate_socket("Listeners", &ld_sockets, &count)) != 0) |
1937 | { | |
1938 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to get listener sockets: %s", strerror(error)); | |
1939 | exit(EXIT_FAILURE); | |
03bc3ef4 | 1940 | } |
1720786e | 1941 | |
03bc3ef4 MS |
1942 | /* |
1943 | * Try to match the launchd sockets to the cupsd listeners... | |
1944 | */ | |
1720786e | 1945 | |
03bc3ef4 | 1946 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: %d listeners.", (int)count); |
1720786e | 1947 | |
03bc3ef4 MS |
1948 | for (i = 0; i < count; i ++) |
1949 | service_add_listener(ld_sockets[i], (int)i); | |
1720786e | 1950 | |
03bc3ef4 | 1951 | free(ld_sockets); |
bbe495b0 MS |
1952 | |
1953 | # ifdef __APPLE__ | |
3dee5db7 | 1954 | xpc_transaction_begin(); |
bbe495b0 | 1955 | # endif /* __APPLE__ */ |
1720786e MS |
1956 | } |
1957 | ||
03bc3ef4 MS |
1958 | #elif defined(HAVE_SYSTEMD) |
1959 | if (OnDemand) | |
1960 | { | |
1961 | int i, /* Looping var */ | |
1962 | count; /* Number of listeners */ | |
1720786e | 1963 | |
03bc3ef4 MS |
1964 | /* |
1965 | * Check-in with systemd... | |
1966 | */ | |
1720786e | 1967 | |
03bc3ef4 MS |
1968 | if ((count = sd_listen_fds(0)) < 0) |
1969 | { | |
1970 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to get listener sockets: %s", strerror(-count)); | |
1971 | exit(EXIT_FAILURE); | |
1972 | return; /* anti-compiler-warning */ | |
1973 | } | |
1166bf58 | 1974 | |
03bc3ef4 MS |
1975 | /* |
1976 | * Try to match the systemd sockets to the cupsd listeners... | |
1977 | */ | |
1720786e | 1978 | |
03bc3ef4 | 1979 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: %d listeners.", count); |
1166bf58 | 1980 | |
03bc3ef4 MS |
1981 | for (i = 0; i < count; i ++) |
1982 | service_add_listener(SD_LISTEN_FDS_START + i, i); | |
441de8b2 | 1983 | } |
1720786e | 1984 | |
03bc3ef4 MS |
1985 | #elif defined(HAVE_UPSTART) |
1986 | if (OnDemand) | |
441de8b2 | 1987 | { |
03bc3ef4 MS |
1988 | const char *e; /* Environment var */ |
1989 | int fd; /* File descriptor */ | |
1720786e | 1990 | |
1720786e | 1991 | |
03bc3ef4 MS |
1992 | if (!(e = getenv("UPSTART_EVENTS"))) |
1993 | { | |
1994 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: We did not get started via Upstart."); | |
1995 | exit(EXIT_FAILURE); | |
1996 | return; | |
1997 | } | |
1720786e | 1998 | |
03bc3ef4 MS |
1999 | if (strcasecmp(e, "socket")) |
2000 | { | |
2001 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: We did not get triggered via an Upstart socket event."); | |
2002 | exit(EXIT_FAILURE); | |
2003 | return; | |
2004 | } | |
1720786e | 2005 | |
03bc3ef4 MS |
2006 | if ((e = getenv("UPSTART_FDS")) == NULL) |
2007 | { | |
2008 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Unable to get listener sockets from UPSTART_FDS."); | |
2009 | exit(EXIT_FAILURE); | |
2010 | return; | |
2011 | } | |
1166bf58 | 2012 | |
03bc3ef4 | 2013 | cupsdLogMessage(CUPSD_LOG_DEBUG, "service_checkin: UPSTART_FDS=%s", e); |
1720786e | 2014 | |
03bc3ef4 MS |
2015 | fd = (int)strtol(e, NULL, 10); |
2016 | if (fd < 0) | |
2017 | { | |
2018 | cupsdLogMessage(CUPSD_LOG_ERROR, "service_checkin: Could not parse UPSTART_FDS: %s", strerror(errno)); | |
2019 | exit(EXIT_FAILURE); | |
2020 | return; | |
2021 | } | |
2022 | ||
2023 | /* | |
2024 | * Upstart only supportst a single on-demand socket file descriptor... | |
2025 | */ | |
2026 | ||
2027 | service_add_listener(fd, 0); | |
2028 | } | |
2029 | #endif /* HAVE_LAUNCHD */ | |
1720786e MS |
2030 | } |
2031 | ||
2032 | ||
2033 | /* | |
03bc3ef4 | 2034 | * 'service_checkout()' - Update the KeepAlive/PID file as needed. |
1720786e MS |
2035 | */ |
2036 | ||
2037 | static void | |
03bc3ef4 | 2038 | service_checkout(int shutdown) /* I - Shutting down? */ |
1720786e | 2039 | { |
e9b2d701 MS |
2040 | cups_file_t *fp; /* File */ |
2041 | char pidfile[1024]; /* PID/KeepAlive file */ | |
03bc3ef4 MS |
2042 | |
2043 | ||
2044 | /* | |
2045 | * When running on-demand, use the KeepAlive file, otherwise write a PID file | |
2046 | * to StateDir... | |
2047 | */ | |
1720786e | 2048 | |
03bc3ef4 MS |
2049 | #ifdef HAVE_ONDEMAND |
2050 | if (OnDemand) | |
e9b2d701 | 2051 | { |
e9a4e9d6 MS |
2052 | int shared_printers = 0; /* Do we have shared printers? */ |
2053 | ||
03bc3ef4 | 2054 | strlcpy(pidfile, CUPS_KEEPALIVE, sizeof(pidfile)); |
e9b2d701 | 2055 | |
e9a4e9d6 MS |
2056 | /* |
2057 | * If printer sharing is on see if there are any actual shared printers... | |
2058 | */ | |
2059 | ||
2060 | if (Browsing && BrowseLocalProtocols) | |
2061 | { | |
2062 | cupsd_printer_t *p = NULL; /* Current printer */ | |
2063 | ||
2064 | for (p = (cupsd_printer_t *)cupsArrayFirst(Printers); p; p = (cupsd_printer_t *)cupsArrayNext(Printers)) | |
2065 | { | |
2066 | if (p->shared) | |
2067 | break; | |
2068 | } | |
2069 | ||
2070 | shared_printers = (p != NULL); | |
2071 | } | |
2072 | ||
e9b2d701 MS |
2073 | if (cupsArrayCount(ActiveJobs) || /* Active jobs */ |
2074 | WebInterface || /* Web interface enabled */ | |
2075 | NeedReload || /* Doing a reload */ | |
e9a4e9d6 | 2076 | shared_printers) /* Printers being shared */ |
e9b2d701 MS |
2077 | { |
2078 | /* | |
2079 | * Create or remove the "keep-alive" file based on whether there are active | |
2080 | * jobs or shared printers to advertise... | |
2081 | */ | |
2082 | ||
2083 | shutdown = 0; | |
2084 | } | |
2085 | } | |
03bc3ef4 MS |
2086 | else |
2087 | #endif /* HAVE_ONDEMAND */ | |
2088 | snprintf(pidfile, sizeof(pidfile), "%s/cupsd.pid", StateDir); | |
1720786e | 2089 | |
e9b2d701 MS |
2090 | if (shutdown) |
2091 | { | |
2092 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Removing KeepAlive/PID file \"%s\".", pidfile); | |
1720786e | 2093 | |
e9b2d701 MS |
2094 | unlink(pidfile); |
2095 | } | |
2096 | else | |
1720786e | 2097 | { |
03bc3ef4 | 2098 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Creating KeepAlive/PID file \"%s\".", pidfile); |
1720786e | 2099 | |
03bc3ef4 MS |
2100 | if ((fp = cupsFileOpen(pidfile, "w")) != NULL) |
2101 | { | |
2102 | /* | |
2103 | * Save the PID in the file... | |
2104 | */ | |
2105 | ||
2106 | cupsFilePrintf(fp, "%d\n", (int)getpid()); | |
2107 | cupsFileClose(fp); | |
2108 | } | |
2109 | else | |
2110 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to create KeepAlive/PID file \"%s\": %s", pidfile, strerror(errno)); | |
1720786e | 2111 | } |
bbe495b0 | 2112 | |
bbe495b0 | 2113 | # ifdef __APPLE__ |
3dee5db7 MS |
2114 | if (OnDemand && shutdown) |
2115 | xpc_transaction_end(); | |
bbe495b0 | 2116 | # endif /* __APPLE__ */ |
1720786e | 2117 | } |
1720786e MS |
2118 | |
2119 | ||
ef416fc2 | 2120 | /* |
2121 | * 'usage()' - Show scheduler usage. | |
2122 | */ | |
2123 | ||
2124 | static void | |
a4d04587 | 2125 | usage(int status) /* O - Exit status */ |
ef416fc2 | 2126 | { |
0837b7e8 MS |
2127 | FILE *fp = status ? stderr : stdout; /* Output file */ |
2128 | ||
2129 | ||
2130 | _cupsLangPuts(fp, _("Usage: cupsd [options]")); | |
2131 | _cupsLangPuts(fp, _("Options:")); | |
c4b22214 MS |
2132 | _cupsLangPuts(fp, _("-c cupsd.conf Set cupsd.conf file to use.")); |
2133 | _cupsLangPuts(fp, _("-f Run in the foreground.")); | |
2134 | _cupsLangPuts(fp, _("-F Run in the foreground but detach from console.")); | |
2135 | _cupsLangPuts(fp, _("-h Show this usage message.")); | |
1166bf58 | 2136 | #ifdef HAVE_ONDEMAND |
c4b22214 | 2137 | _cupsLangPuts(fp, _("-l Run cupsd on demand.")); |
1166bf58 | 2138 | #endif /* HAVE_ONDEMAND */ |
c4b22214 MS |
2139 | _cupsLangPuts(fp, _("-s cups-files.conf Set cups-files.conf file to use.")); |
2140 | _cupsLangPuts(fp, _("-t Test the configuration file.")); | |
0837b7e8 | 2141 | |
a4d04587 | 2142 | exit(status); |
ef416fc2 | 2143 | } |