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ef416fc2 | 1 | /* |
f42414bf | 2 | * "$Id: lpd.c 6398 2007-03-26 12:57:59Z mike $" |
ef416fc2 | 3 | * |
4 | * Line Printer Daemon backend for the Common UNIX Printing System (CUPS). | |
5 | * | |
f42414bf | 6 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 7 | * |
8 | * These coded instructions, statements, and computer programs are the | |
9 | * property of Easy Software Products and are protected by Federal | |
10 | * copyright law. Distribution and use rights are outlined in the file | |
11 | * "LICENSE" which should have been included with this file. If this | |
12 | * file is missing or damaged please contact Easy Software Products | |
13 | * at: | |
14 | * | |
15 | * Attn: CUPS Licensing Information | |
16 | * Easy Software Products | |
17 | * 44141 Airport View Drive, Suite 204 | |
18 | * Hollywood, Maryland 20636 USA | |
19 | * | |
20 | * Voice: (301) 373-9600 | |
21 | * EMail: cups-info@cups.org | |
22 | * WWW: http://www.cups.org | |
23 | * | |
24 | * This file is subject to the Apple OS-Developed Software exception. | |
25 | * | |
26 | * Contents: | |
27 | * | |
28 | * main() - Send a file to the printer or server. | |
29 | * lpd_command() - Send an LPR command sequence and wait for a reply. | |
30 | * lpd_queue() - Queue a file using the Line Printer Daemon protocol. | |
31 | * lpd_timeout() - Handle timeout alarms... | |
32 | * lpd_write() - Write a buffer of data to an LPD server. | |
33 | * rresvport_af() - A simple implementation of rresvport_af(). | |
34 | * sigterm_handler() - Handle 'terminate' signals that stop the backend. | |
35 | */ | |
36 | ||
37 | /* | |
38 | * Include necessary headers. | |
39 | */ | |
40 | ||
41 | #include <cups/backend.h> | |
42 | #include <cups/http-private.h> | |
43 | #include <cups/cups.h> | |
44 | #include <stdio.h> | |
45 | #include <stdlib.h> | |
46 | #include <stdarg.h> | |
47 | #include <ctype.h> | |
48 | #include <cups/string.h> | |
49 | #include <errno.h> | |
50 | #include <sys/types.h> | |
51 | #include <sys/stat.h> | |
52 | #include <signal.h> | |
53 | ||
54 | #ifdef WIN32 | |
55 | # include <winsock.h> | |
56 | #else | |
57 | # include <sys/socket.h> | |
58 | # include <netinet/in.h> | |
59 | # include <arpa/inet.h> | |
60 | # include <netdb.h> | |
61 | #endif /* WIN32 */ | |
fa73b229 | 62 | #ifdef __APPLE__ |
63 | # include <CoreFoundation/CFNumber.h> | |
64 | # include <CoreFoundation/CFPreferences.h> | |
65 | #endif /* __APPLE__ */ | |
ef416fc2 | 66 | |
67 | ||
68 | /* | |
69 | * Globals... | |
70 | */ | |
71 | ||
72 | static char tmpfilename[1024] = ""; /* Temporary spool file name */ | |
73 | static int abort_job = 0; /* Non-zero if we get SIGTERM */ | |
74 | ||
75 | ||
f42414bf | 76 | /* |
77 | * Print mode... | |
78 | */ | |
79 | ||
80 | #define MODE_STANDARD 0 /* Queue a copy */ | |
81 | #define MODE_STREAM 1 /* Stream a copy */ | |
82 | ||
83 | ||
ef416fc2 | 84 | /* |
85 | * The order for control and data files in LPD requests... | |
86 | */ | |
87 | ||
88 | #define ORDER_CONTROL_DATA 0 /* Control file first, then data */ | |
89 | #define ORDER_DATA_CONTROL 1 /* Data file first, then control */ | |
90 | ||
91 | ||
92 | /* | |
93 | * What to reserve... | |
94 | */ | |
95 | ||
96 | #define RESERVE_NONE 0 /* Don't reserve a priviledged port */ | |
97 | #define RESERVE_RFC1179 1 /* Reserve port 721-731 */ | |
98 | #define RESERVE_ANY 2 /* Reserve port 1-1023 */ | |
99 | ||
100 | ||
101 | /* | |
102 | * Local functions... | |
103 | */ | |
104 | ||
105 | static int lpd_command(int lpd_fd, int timeout, char *format, ...); | |
106 | static int lpd_queue(const char *hostname, int port, const char *printer, | |
f42414bf | 107 | int print_fd, int mode, const char *user, |
108 | const char *title, int copies, int banner, | |
109 | int format, int order, int reserve, | |
fa73b229 | 110 | int manual_copies, int timeout, int contimeout); |
ef416fc2 | 111 | static void lpd_timeout(int sig); |
112 | static int lpd_write(int lpd_fd, char *buffer, int length); | |
113 | #ifndef HAVE_RRESVPORT_AF | |
114 | static int rresvport_af(int *port, int family); | |
115 | #endif /* !HAVE_RRESVPORT_AF */ | |
116 | static void sigterm_handler(int sig); | |
117 | ||
118 | ||
119 | /* | |
120 | * 'main()' - Send a file to the printer or server. | |
121 | * | |
122 | * Usage: | |
123 | * | |
124 | * printer-uri job-id user title copies options [file] | |
125 | */ | |
126 | ||
127 | int /* O - Exit status */ | |
128 | main(int argc, /* I - Number of command-line arguments (6 or 7) */ | |
129 | char *argv[]) /* I - Command-line arguments */ | |
130 | { | |
131 | char method[255], /* Method in URI */ | |
132 | hostname[1024], /* Hostname */ | |
133 | username[255], /* Username info */ | |
134 | resource[1024], /* Resource info (printer name) */ | |
135 | *options, /* Pointer to options */ | |
136 | name[255], /* Name of option */ | |
137 | value[255], /* Value of option */ | |
138 | *ptr, /* Pointer into name or value */ | |
139 | *filename, /* File to print */ | |
140 | title[256]; /* Title string */ | |
141 | int port; /* Port number */ | |
f42414bf | 142 | int fd; /* Print file */ |
ef416fc2 | 143 | int status; /* Status of LPD job */ |
f42414bf | 144 | int mode; /* Print mode */ |
ef416fc2 | 145 | int banner; /* Print banner page? */ |
146 | int format; /* Print format */ | |
147 | int order; /* Order of control/data files */ | |
148 | int reserve; /* Reserve priviledged port? */ | |
149 | int sanitize_title; /* Sanitize title string? */ | |
150 | int manual_copies, /* Do manual copies? */ | |
151 | timeout, /* Timeout */ | |
fa73b229 | 152 | contimeout, /* Connection timeout */ |
ef416fc2 | 153 | copies; /* Number of copies */ |
154 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
155 | struct sigaction action; /* Actions for POSIX signals */ | |
156 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
157 | ||
158 | ||
159 | /* | |
160 | * Make sure status messages are not buffered... | |
161 | */ | |
162 | ||
163 | setbuf(stderr, NULL); | |
164 | ||
165 | /* | |
166 | * Ignore SIGPIPE and catch SIGTERM signals... | |
167 | */ | |
168 | ||
169 | #ifdef HAVE_SIGSET | |
170 | sigset(SIGPIPE, SIG_IGN); | |
171 | sigset(SIGTERM, sigterm_handler); | |
172 | #elif defined(HAVE_SIGACTION) | |
173 | memset(&action, 0, sizeof(action)); | |
174 | action.sa_handler = SIG_IGN; | |
175 | sigaction(SIGPIPE, &action, NULL); | |
176 | ||
177 | sigemptyset(&action.sa_mask); | |
178 | sigaddset(&action.sa_mask, SIGTERM); | |
179 | action.sa_handler = sigterm_handler; | |
180 | sigaction(SIGTERM, &action, NULL); | |
181 | #else | |
182 | signal(SIGPIPE, SIG_IGN); | |
183 | signal(SIGTERM, sigterm_handler); | |
184 | #endif /* HAVE_SIGSET */ | |
185 | ||
186 | /* | |
187 | * Check command-line... | |
188 | */ | |
189 | ||
190 | if (argc == 1) | |
191 | { | |
192 | puts("network lpd \"Unknown\" \"LPD/LPR Host or Printer\""); | |
193 | return (CUPS_BACKEND_OK); | |
194 | } | |
195 | else if (argc < 6 || argc > 7) | |
196 | { | |
197 | fprintf(stderr, "Usage: %s job-id user title copies options [file]\n", | |
198 | argv[0]); | |
199 | return (CUPS_BACKEND_FAILED); | |
200 | } | |
201 | ||
ef416fc2 | 202 | /* |
203 | * Extract the hostname and printer name from the URI... | |
204 | */ | |
205 | ||
a4d04587 | 206 | httpSeparateURI(HTTP_URI_CODING_ALL, cupsBackendDeviceURI(argv), |
207 | method, sizeof(method), username, sizeof(username), | |
208 | hostname, sizeof(hostname), &port, | |
ef416fc2 | 209 | resource, sizeof(resource)); |
210 | ||
211 | if (!username[0]) | |
212 | { | |
213 | /* | |
214 | * If no username is in the device URI, then use the print job user... | |
215 | */ | |
216 | ||
217 | strlcpy(username, argv[2], sizeof(username)); | |
218 | } | |
219 | ||
220 | /* | |
221 | * See if there are any options... | |
222 | */ | |
223 | ||
f42414bf | 224 | mode = MODE_STANDARD; |
fa73b229 | 225 | banner = 0; |
226 | format = 'l'; | |
227 | order = ORDER_CONTROL_DATA; | |
228 | reserve = RESERVE_ANY; | |
229 | manual_copies = 1; | |
230 | timeout = 300; | |
231 | contimeout = 7 * 24 * 60 * 60; | |
ef416fc2 | 232 | |
fa73b229 | 233 | #ifdef __APPLE__ |
ef416fc2 | 234 | /* We want to pass utf-8 characters, not re-map them (3071945) */ |
fa73b229 | 235 | sanitize_title = 0; |
236 | ||
d09495fa | 237 | /* Get the default timeout from a system preference... */ |
fa73b229 | 238 | { |
239 | CFPropertyListRef pvalue; /* Preference value */ | |
240 | SInt32 toval; /* Timeout value */ | |
241 | ||
242 | ||
243 | pvalue = CFPreferencesCopyValue(CFSTR("timeout"), | |
244 | CFSTR("com.apple.print.backends"), | |
245 | kCFPreferencesAnyUser, | |
246 | kCFPreferencesCurrentHost); | |
247 | if (pvalue) | |
248 | { | |
249 | if (CFGetTypeID(pvalue) == CFNumberGetTypeID()) | |
250 | { | |
251 | CFNumberGetValue(pvalue, kCFNumberSInt32Type, &toval); | |
252 | contimeout = (int)toval; | |
253 | } | |
254 | ||
255 | CFRelease(pvalue); | |
256 | } | |
257 | } | |
258 | #else | |
259 | sanitize_title = 1; | |
260 | #endif /* __APPLE__ */ | |
ef416fc2 | 261 | |
262 | if ((options = strchr(resource, '?')) != NULL) | |
263 | { | |
264 | /* | |
265 | * Yup, terminate the device name string and move to the first | |
266 | * character of the options... | |
267 | */ | |
268 | ||
269 | *options++ = '\0'; | |
270 | ||
271 | /* | |
272 | * Parse options... | |
273 | */ | |
274 | ||
275 | while (*options) | |
276 | { | |
277 | /* | |
278 | * Get the name... | |
279 | */ | |
280 | ||
281 | for (ptr = name; *options && *options != '=';) | |
282 | if (ptr < (name + sizeof(name) - 1)) | |
283 | *ptr++ = *options++; | |
284 | *ptr = '\0'; | |
285 | ||
286 | if (*options == '=') | |
287 | { | |
288 | /* | |
289 | * Get the value... | |
290 | */ | |
291 | ||
292 | options ++; | |
293 | ||
294 | for (ptr = value; *options && *options != '+' && *options != '&';) | |
295 | if (ptr < (value + sizeof(value) - 1)) | |
296 | *ptr++ = *options++; | |
297 | *ptr = '\0'; | |
298 | ||
fa73b229 | 299 | if (*options == '+' || *options == '&') |
ef416fc2 | 300 | options ++; |
301 | } | |
302 | else | |
303 | value[0] = '\0'; | |
304 | ||
305 | /* | |
306 | * Process the option... | |
307 | */ | |
308 | ||
fa73b229 | 309 | if (!strcasecmp(name, "banner")) |
ef416fc2 | 310 | { |
311 | /* | |
312 | * Set the banner... | |
313 | */ | |
314 | ||
fa73b229 | 315 | banner = !value[0] || !strcasecmp(value, "on") || |
316 | !strcasecmp(value, "yes") || !strcasecmp(value, "true"); | |
ef416fc2 | 317 | } |
fa73b229 | 318 | else if (!strcasecmp(name, "format") && value[0]) |
ef416fc2 | 319 | { |
320 | /* | |
321 | * Set output format... | |
322 | */ | |
323 | ||
fa73b229 | 324 | if (strchr("cdfglnoprtv", value[0])) |
ef416fc2 | 325 | format = value[0]; |
326 | else | |
327 | fprintf(stderr, "ERROR: Unknown format character \"%c\"\n", value[0]); | |
328 | } | |
f42414bf | 329 | else if (!strcasecmp(name, "mode") && value[0]) |
330 | { | |
331 | /* | |
332 | * Set control/data order... | |
333 | */ | |
334 | ||
335 | if (!strcasecmp(value, "standard")) | |
336 | order = MODE_STANDARD; | |
337 | else if (!strcasecmp(value, "stream")) | |
338 | order = MODE_STREAM; | |
339 | else | |
340 | fprintf(stderr, "ERROR: Unknown print mode \"%s\"\n", value); | |
341 | } | |
fa73b229 | 342 | else if (!strcasecmp(name, "order") && value[0]) |
ef416fc2 | 343 | { |
344 | /* | |
345 | * Set control/data order... | |
346 | */ | |
347 | ||
fa73b229 | 348 | if (!strcasecmp(value, "control,data")) |
ef416fc2 | 349 | order = ORDER_CONTROL_DATA; |
fa73b229 | 350 | else if (!strcasecmp(value, "data,control")) |
ef416fc2 | 351 | order = ORDER_DATA_CONTROL; |
352 | else | |
353 | fprintf(stderr, "ERROR: Unknown file order \"%s\"\n", value); | |
354 | } | |
fa73b229 | 355 | else if (!strcasecmp(name, "reserve")) |
ef416fc2 | 356 | { |
357 | /* | |
358 | * Set port reservation mode... | |
359 | */ | |
360 | ||
fa73b229 | 361 | if (!value[0] || !strcasecmp(value, "on") || |
362 | !strcasecmp(value, "yes") || !strcasecmp(value, "true") || | |
ef416fc2 | 363 | !strcasecmp(value, "rfc1179")) |
364 | reserve = RESERVE_RFC1179; | |
365 | else if (!strcasecmp(value, "any")) | |
366 | reserve = RESERVE_ANY; | |
367 | else | |
368 | reserve = RESERVE_NONE; | |
369 | } | |
fa73b229 | 370 | else if (!strcasecmp(name, "manual_copies")) |
ef416fc2 | 371 | { |
372 | /* | |
373 | * Set manual copies... | |
374 | */ | |
375 | ||
fa73b229 | 376 | manual_copies = !value[0] || !strcasecmp(value, "on") || |
377 | !strcasecmp(value, "yes") || !strcasecmp(value, "true"); | |
ef416fc2 | 378 | } |
fa73b229 | 379 | else if (!strcasecmp(name, "sanitize_title")) |
ef416fc2 | 380 | { |
381 | /* | |
382 | * Set sanitize title... | |
383 | */ | |
384 | ||
fa73b229 | 385 | sanitize_title = !value[0] || !strcasecmp(value, "on") || |
386 | !strcasecmp(value, "yes") || !strcasecmp(value, "true"); | |
ef416fc2 | 387 | } |
fa73b229 | 388 | else if (!strcasecmp(name, "timeout")) |
ef416fc2 | 389 | { |
390 | /* | |
391 | * Set the timeout... | |
392 | */ | |
393 | ||
394 | if (atoi(value) > 0) | |
395 | timeout = atoi(value); | |
396 | } | |
fa73b229 | 397 | else if (!strcasecmp(name, "contimeout")) |
398 | { | |
399 | /* | |
400 | * Set the timeout... | |
401 | */ | |
402 | ||
403 | if (atoi(value) > 0) | |
404 | contimeout = atoi(value); | |
405 | } | |
ef416fc2 | 406 | } |
407 | } | |
408 | ||
f42414bf | 409 | if (mode == MODE_STREAM) |
410 | order = ORDER_CONTROL_DATA; | |
411 | ||
412 | /* | |
413 | * If we have 7 arguments, print the file named on the command-line. | |
414 | * Otherwise, copy stdin to a temporary file and print the temporary | |
415 | * file. | |
416 | */ | |
417 | ||
418 | if (argc == 6 && mode == MODE_STANDARD) | |
419 | { | |
420 | /* | |
421 | * Copy stdin to a temporary file... | |
422 | */ | |
423 | ||
424 | char buffer[8192]; /* Buffer for copying */ | |
425 | int bytes; /* Number of bytes read */ | |
426 | ||
427 | ||
428 | if ((fd = cupsTempFd(tmpfilename, sizeof(tmpfilename))) < 0) | |
429 | { | |
430 | perror("ERROR: unable to create temporary file"); | |
431 | return (CUPS_BACKEND_FAILED); | |
432 | } | |
433 | ||
434 | while ((bytes = fread(buffer, 1, sizeof(buffer), stdin)) > 0) | |
435 | if (write(fd, buffer, bytes) < bytes) | |
436 | { | |
437 | perror("ERROR: unable to write to temporary file"); | |
438 | close(fd); | |
439 | unlink(tmpfilename); | |
440 | return (CUPS_BACKEND_FAILED); | |
441 | } | |
442 | ||
443 | filename = tmpfilename; | |
444 | } | |
445 | else if (argc == 6) | |
446 | { | |
447 | /* | |
448 | * Stream from stdin... | |
449 | */ | |
450 | ||
451 | filename = NULL; | |
452 | fd = 0; | |
453 | } | |
454 | else | |
455 | { | |
456 | filename = argv[6]; | |
457 | fd = open(filename, O_RDONLY); | |
458 | ||
459 | if (fd == -1) | |
460 | { | |
461 | fprintf(stderr, "ERROR: Unable to open print file %s: %s\n", | |
462 | filename, strerror(errno)); | |
463 | return (CUPS_BACKEND_FAILED); | |
464 | } | |
465 | } | |
466 | ||
ef416fc2 | 467 | /* |
468 | * Sanitize the document title... | |
469 | */ | |
470 | ||
471 | strlcpy(title, argv[3], sizeof(title)); | |
472 | ||
473 | if (sanitize_title) | |
474 | { | |
475 | /* | |
476 | * Sanitize the title string so that we don't cause problems on | |
477 | * the remote end... | |
478 | */ | |
479 | ||
480 | for (ptr = title; *ptr; ptr ++) | |
481 | if (!isalnum(*ptr & 255) && !isspace(*ptr & 255)) | |
482 | *ptr = '_'; | |
483 | } | |
484 | ||
485 | /* | |
486 | * Queue the job... | |
487 | */ | |
488 | ||
489 | if (argc > 6) | |
490 | { | |
491 | if (manual_copies) | |
492 | { | |
493 | manual_copies = atoi(argv[4]); | |
494 | copies = 1; | |
495 | } | |
496 | else | |
497 | { | |
498 | manual_copies = 1; | |
499 | copies = atoi(argv[4]); | |
500 | } | |
501 | ||
f42414bf | 502 | status = lpd_queue(hostname, port, resource + 1, fd, mode, |
ef416fc2 | 503 | username, title, copies, |
fa73b229 | 504 | banner, format, order, reserve, manual_copies, |
505 | timeout, contimeout); | |
ef416fc2 | 506 | |
507 | if (!status) | |
508 | fprintf(stderr, "PAGE: 1 %d\n", atoi(argv[4])); | |
509 | } | |
510 | else | |
f42414bf | 511 | status = lpd_queue(hostname, port, resource + 1, fd, mode, |
ef416fc2 | 512 | username, title, 1, |
fa73b229 | 513 | banner, format, order, reserve, 1, |
514 | timeout, contimeout); | |
ef416fc2 | 515 | |
516 | /* | |
517 | * Remove the temporary file if necessary... | |
518 | */ | |
519 | ||
520 | if (tmpfilename[0]) | |
521 | unlink(tmpfilename); | |
522 | ||
f42414bf | 523 | if (fd) |
524 | close(fd); | |
525 | ||
ef416fc2 | 526 | /* |
527 | * Return the queue status... | |
528 | */ | |
529 | ||
530 | return (status); | |
531 | } | |
532 | ||
533 | ||
534 | /* | |
535 | * 'lpd_command()' - Send an LPR command sequence and wait for a reply. | |
536 | */ | |
537 | ||
538 | static int /* O - Status of command */ | |
539 | lpd_command(int fd, /* I - Socket connection to LPD host */ | |
540 | int timeout, /* I - Seconds to wait for a response */ | |
541 | char *format, /* I - printf()-style format string */ | |
542 | ...) /* I - Additional args as necessary */ | |
543 | { | |
544 | va_list ap; /* Argument pointer */ | |
545 | char buf[1024]; /* Output buffer */ | |
546 | int bytes; /* Number of bytes to output */ | |
547 | char status; /* Status from command */ | |
548 | ||
549 | ||
550 | /* | |
551 | * Don't try to send commands if the job has been cancelled... | |
552 | */ | |
553 | ||
554 | if (abort_job) | |
555 | return (-1); | |
556 | ||
557 | /* | |
558 | * Format the string... | |
559 | */ | |
560 | ||
561 | va_start(ap, format); | |
562 | bytes = vsnprintf(buf, sizeof(buf), format, ap); | |
563 | va_end(ap); | |
564 | ||
565 | fprintf(stderr, "DEBUG: lpd_command %2.2x %s", buf[0], buf + 1); | |
566 | ||
567 | /* | |
568 | * Send the command... | |
569 | */ | |
570 | ||
571 | fprintf(stderr, "DEBUG: Sending command string (%d bytes)...\n", bytes); | |
572 | ||
573 | if (lpd_write(fd, buf, bytes) < bytes) | |
574 | { | |
575 | perror("ERROR: Unable to send LPD command"); | |
576 | return (-1); | |
577 | } | |
578 | ||
579 | /* | |
580 | * Read back the status from the command and return it... | |
581 | */ | |
582 | ||
583 | fprintf(stderr, "DEBUG: Reading command status...\n"); | |
584 | ||
585 | alarm(timeout); | |
586 | ||
587 | if (recv(fd, &status, 1, 0) < 1) | |
588 | { | |
589 | fprintf(stderr, "WARNING: Remote host did not respond with command " | |
590 | "status byte after %d seconds!\n", timeout); | |
591 | status = errno; | |
592 | } | |
593 | ||
594 | alarm(0); | |
595 | ||
596 | fprintf(stderr, "DEBUG: lpd_command returning %d\n", status); | |
597 | ||
598 | return (status); | |
599 | } | |
600 | ||
601 | ||
602 | /* | |
603 | * 'lpd_queue()' - Queue a file using the Line Printer Daemon protocol. | |
604 | */ | |
605 | ||
606 | static int /* O - Zero on success, non-zero on failure */ | |
607 | lpd_queue(const char *hostname, /* I - Host to connect to */ | |
608 | int port, /* I - Port to connect on */ | |
609 | const char *printer, /* I - Printer/queue name */ | |
f42414bf | 610 | int print_fd, /* I - File to print */ |
611 | int mode, /* I - Print mode */ | |
ef416fc2 | 612 | const char *user, /* I - Requesting user */ |
613 | const char *title, /* I - Job title */ | |
614 | int copies, /* I - Number of copies */ | |
615 | int banner, /* I - Print LPD banner? */ | |
616 | int format, /* I - Format specifier */ | |
617 | int order, /* I - Order of data/control files */ | |
618 | int reserve, /* I - Reserve ports? */ | |
619 | int manual_copies, /* I - Do copies by hand... */ | |
fa73b229 | 620 | int timeout, /* I - Timeout... */ |
621 | int contimeout) /* I - Connection timeout */ | |
ef416fc2 | 622 | { |
ef416fc2 | 623 | char localhost[255]; /* Local host name */ |
624 | int error; /* Error number */ | |
625 | struct stat filestats; /* File statistics */ | |
626 | int lport; /* LPD connection local port */ | |
627 | int fd; /* LPD socket */ | |
628 | char control[10240], /* LPD control 'file' */ | |
629 | *cptr; /* Pointer into control file string */ | |
630 | char status; /* Status byte from command */ | |
631 | char portname[255]; /* Port name */ | |
26d47ec6 | 632 | char addrname[256]; /* Address name */ |
ef416fc2 | 633 | http_addrlist_t *addrlist, /* Address list */ |
634 | *addr; /* Socket address */ | |
635 | int copy; /* Copies written */ | |
fa73b229 | 636 | time_t start_time; /* Time of first connect */ |
637 | #ifdef __APPLE__ | |
638 | int recoverable; /* Recoverable error shown? */ | |
639 | #endif /* __APPLE__ */ | |
ef416fc2 | 640 | size_t nbytes; /* Number of bytes written */ |
641 | off_t tbytes; /* Total bytes written */ | |
a74454a7 | 642 | char buffer[32768]; /* Output buffer */ |
ef416fc2 | 643 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
644 | struct sigaction action; /* Actions for POSIX signals */ | |
645 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
646 | ||
647 | ||
648 | /* | |
649 | * Setup an alarm handler for timeouts... | |
650 | */ | |
651 | ||
652 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
653 | sigset(SIGALRM, lpd_timeout); | |
654 | #elif defined(HAVE_SIGACTION) | |
655 | memset(&action, 0, sizeof(action)); | |
656 | ||
657 | sigemptyset(&action.sa_mask); | |
658 | action.sa_handler = lpd_timeout; | |
659 | sigaction(SIGALRM, &action, NULL); | |
660 | #else | |
661 | signal(SIGALRM, lpd_timeout); | |
662 | #endif /* HAVE_SIGSET */ | |
663 | ||
664 | /* | |
665 | * Find the printer... | |
666 | */ | |
667 | ||
668 | sprintf(portname, "%d", port); | |
669 | ||
670 | if ((addrlist = httpAddrGetList(hostname, AF_UNSPEC, portname)) == NULL) | |
671 | { | |
672 | fprintf(stderr, "ERROR: Unable to locate printer \'%s\'!\n", | |
673 | hostname); | |
674 | return (CUPS_BACKEND_STOP); | |
675 | } | |
676 | ||
fa73b229 | 677 | /* |
678 | * Remember when we starting trying to connect to the printer... | |
679 | */ | |
680 | ||
681 | #ifdef __APPLE__ | |
682 | recoverable = 0; | |
683 | #endif /* __APPLE__ */ | |
684 | start_time = time(NULL); | |
685 | ||
ef416fc2 | 686 | /* |
687 | * Loop forever trying to print the file... | |
688 | */ | |
689 | ||
690 | while (!abort_job) | |
691 | { | |
692 | /* | |
693 | * First try to reserve a port for this connection... | |
694 | */ | |
695 | ||
757d2cad | 696 | fputs("STATE: +connecting-to-device\n", stderr); |
ef416fc2 | 697 | fprintf(stderr, "INFO: Attempting to connect to host %s for printer %s\n", |
698 | hostname, printer); | |
699 | ||
700 | for (lport = reserve == RESERVE_RFC1179 ? 732 : 1024, addr = addrlist;; | |
701 | addr = addr->next) | |
702 | { | |
703 | /* | |
704 | * Stop if this job has been cancelled... | |
705 | */ | |
706 | ||
707 | if (abort_job) | |
708 | { | |
709 | httpAddrFreeList(addrlist); | |
710 | ||
711 | return (CUPS_BACKEND_FAILED); | |
712 | } | |
713 | ||
714 | /* | |
715 | * Choose the next priviledged port... | |
716 | */ | |
717 | ||
718 | if (!addr) | |
719 | addr = addrlist; | |
720 | ||
721 | lport --; | |
722 | ||
723 | if (lport < 721 && reserve == RESERVE_RFC1179) | |
724 | lport = 731; | |
725 | else if (lport < 1) | |
726 | lport = 1023; | |
727 | ||
728 | #ifdef HAVE_GETEUID | |
729 | if (geteuid() || !reserve) | |
730 | #else | |
731 | if (getuid() || !reserve) | |
732 | #endif /* HAVE_GETEUID */ | |
733 | { | |
734 | /* | |
735 | * Just create a regular socket... | |
736 | */ | |
737 | ||
738 | if ((fd = socket(addr->addr.addr.sa_family, SOCK_STREAM, 0)) < 0) | |
739 | { | |
740 | perror("ERROR: Unable to create socket"); | |
741 | sleep(1); | |
742 | ||
743 | continue; | |
744 | } | |
745 | ||
746 | lport = 0; | |
747 | } | |
748 | else | |
749 | { | |
750 | /* | |
751 | * We're running as root and want to comply with RFC 1179. Reserve a | |
752 | * priviledged lport between 721 and 731... | |
753 | */ | |
754 | ||
755 | if ((fd = rresvport_af(&lport, addr->addr.addr.sa_family)) < 0) | |
756 | { | |
757 | perror("ERROR: Unable to reserve port"); | |
758 | sleep(1); | |
759 | ||
760 | continue; | |
761 | } | |
762 | } | |
763 | ||
764 | /* | |
765 | * Connect to the printer or server... | |
766 | */ | |
767 | ||
768 | if (abort_job) | |
769 | { | |
770 | httpAddrFreeList(addrlist); | |
771 | ||
772 | close(fd); | |
773 | ||
774 | return (CUPS_BACKEND_FAILED); | |
775 | } | |
776 | ||
777 | if (!connect(fd, &(addr->addr.addr), httpAddrLength(&(addr->addr)))) | |
778 | break; | |
779 | ||
780 | error = errno; | |
781 | close(fd); | |
782 | fd = -1; | |
783 | ||
784 | if (addr->next) | |
785 | continue; | |
786 | ||
787 | if (getenv("CLASS") != NULL) | |
788 | { | |
789 | /* | |
790 | * If the CLASS environment variable is set, the job was submitted | |
791 | * to a class and not to a specific queue. In this case, we want | |
792 | * to abort immediately so that the job can be requeued on the next | |
793 | * available printer in the class. | |
794 | */ | |
795 | ||
796 | fprintf(stderr, "INFO: Unable to connect to %s, queuing on next printer in class...\n", | |
797 | hostname); | |
798 | ||
799 | httpAddrFreeList(addrlist); | |
800 | ||
801 | /* | |
802 | * Sleep 5 seconds to keep the job from requeuing too rapidly... | |
803 | */ | |
804 | ||
805 | sleep(5); | |
806 | ||
807 | return (CUPS_BACKEND_FAILED); | |
808 | } | |
809 | ||
810 | if (error == ECONNREFUSED || error == EHOSTDOWN || | |
811 | error == EHOSTUNREACH) | |
812 | { | |
fa73b229 | 813 | if (contimeout && (time(NULL) - start_time) > contimeout) |
814 | { | |
815 | fputs("ERROR: Printer not responding!\n", stderr); | |
816 | return (CUPS_BACKEND_FAILED); | |
817 | } | |
818 | ||
819 | #ifdef __APPLE__ | |
820 | recoverable = 1; | |
821 | fprintf(stderr, "WARNING: recoverable: " | |
757d2cad | 822 | "Network host \'%s\' is busy, down, or " |
823 | "unreachable; will retry in 30 seconds...\n", | |
824 | hostname); | |
fa73b229 | 825 | #else |
826 | fprintf(stderr, "WARNING: " | |
fa73b229 | 827 | "Network host \'%s\' is busy, down, or " |
828 | "unreachable; will retry in 30 seconds...\n", | |
ef416fc2 | 829 | hostname); |
757d2cad | 830 | #endif /* __APPLE__ */ |
ef416fc2 | 831 | sleep(30); |
832 | } | |
833 | else if (error == EADDRINUSE) | |
834 | { | |
835 | /* | |
836 | * Try on another port... | |
837 | */ | |
838 | ||
839 | sleep(1); | |
840 | } | |
841 | else | |
842 | { | |
fa73b229 | 843 | #ifdef __APPLE__ |
844 | recoverable = 1; | |
845 | perror("ERROR: recoverable: " | |
757d2cad | 846 | "Unable to connect to printer; will retry in 30 seconds..."); |
fa73b229 | 847 | #else |
848 | perror("ERROR: " | |
fa73b229 | 849 | "Unable to connect to printer; will retry in 30 seconds..."); |
757d2cad | 850 | #endif /* __APPLE__ */ |
ef416fc2 | 851 | sleep(30); |
852 | } | |
853 | } | |
854 | ||
fa73b229 | 855 | #ifdef __APPLE__ |
856 | if (recoverable) | |
857 | { | |
858 | /* | |
859 | * If we've shown a recoverable error make sure the printer proxies | |
860 | * have a chance to see the recovered message. Not pretty but | |
861 | * necessary for now... | |
862 | */ | |
863 | ||
864 | fputs("INFO: recovered: \n", stderr); | |
865 | sleep(5); | |
866 | } | |
867 | #endif /* __APPLE__ */ | |
868 | ||
757d2cad | 869 | fputs("STATE: -connecting-to-device\n", stderr); |
ef416fc2 | 870 | fprintf(stderr, "INFO: Connected to %s...\n", hostname); |
26d47ec6 | 871 | |
872 | #ifdef AF_INET6 | |
873 | if (addr->addr.addr.sa_family == AF_INET6) | |
874 | fprintf(stderr, "DEBUG: Connected to [%s]:%d (IPv6) (local port %d)...\n", | |
875 | httpAddrString(&addr->addr, addrname, sizeof(addrname)), | |
876 | ntohs(addr->addr.ipv6.sin6_port), lport); | |
877 | else | |
878 | #endif /* AF_INET6 */ | |
879 | if (addr->addr.addr.sa_family == AF_INET) | |
880 | fprintf(stderr, "DEBUG: Connected to %s:%d (IPv4) (local port %d)...\n", | |
881 | httpAddrString(&addr->addr, addrname, sizeof(addrname)), | |
882 | ntohs(addr->addr.ipv4.sin_port), lport); | |
ef416fc2 | 883 | |
884 | /* | |
885 | * Next, open the print file and figure out its size... | |
886 | */ | |
887 | ||
f42414bf | 888 | if (print_fd) |
ef416fc2 | 889 | { |
f42414bf | 890 | if (fstat(print_fd, &filestats)) |
891 | { | |
892 | httpAddrFreeList(addrlist); | |
893 | close(fd); | |
ef416fc2 | 894 | |
f42414bf | 895 | perror("ERROR: unable to stat print file"); |
896 | return (CUPS_BACKEND_FAILED); | |
897 | } | |
ef416fc2 | 898 | |
f42414bf | 899 | filestats.st_size *= manual_copies; |
ef416fc2 | 900 | } |
f42414bf | 901 | else |
902 | #ifdef _LARGEFILE_SOURCE | |
903 | filestats.st_size = (size_t)(999999999999.0); | |
904 | #else | |
905 | filestats.st_size = 2147483647; | |
906 | #endif /* _LARGEFILE_SOURCE */ | |
ef416fc2 | 907 | |
908 | /* | |
909 | * Send a job header to the printer, specifying no banner page and | |
910 | * literal output... | |
911 | */ | |
912 | ||
913 | if (lpd_command(fd, timeout, "\002%s\n", | |
914 | printer)) /* Receive print job(s) */ | |
915 | { | |
916 | httpAddrFreeList(addrlist); | |
917 | close(fd); | |
918 | return (CUPS_BACKEND_FAILED); | |
919 | } | |
920 | ||
757d2cad | 921 | httpGetHostname(NULL, localhost, sizeof(localhost)); |
ef416fc2 | 922 | |
923 | snprintf(control, sizeof(control), | |
924 | "H%.31s\n" /* RFC 1179, Section 7.2 - host name <= 31 chars */ | |
925 | "P%.31s\n" /* RFC 1179, Section 7.2 - user name <= 31 chars */ | |
926 | "J%.99s\n", /* RFC 1179, Section 7.2 - job name <= 99 chars */ | |
927 | localhost, user, title); | |
928 | cptr = control + strlen(control); | |
929 | ||
930 | if (banner) | |
931 | { | |
932 | snprintf(cptr, sizeof(control) - (cptr - control), | |
933 | "C%.31s\n" /* RFC 1179, Section 7.2 - class name <= 31 chars */ | |
934 | "L%s\n", | |
935 | localhost, user); | |
936 | cptr += strlen(cptr); | |
937 | } | |
938 | ||
939 | while (copies > 0) | |
940 | { | |
941 | snprintf(cptr, sizeof(control) - (cptr - control), "%cdfA%03d%.15s\n", | |
942 | format, (int)getpid() % 1000, localhost); | |
943 | cptr += strlen(cptr); | |
944 | copies --; | |
945 | } | |
946 | ||
947 | snprintf(cptr, sizeof(control) - (cptr - control), | |
948 | "UdfA%03d%.15s\n" | |
949 | "N%.131s\n", /* RFC 1179, Section 7.2 - sourcefile name <= 131 chars */ | |
950 | (int)getpid() % 1000, localhost, title); | |
951 | ||
952 | fprintf(stderr, "DEBUG: Control file is:\n%s", control); | |
953 | ||
954 | if (order == ORDER_CONTROL_DATA) | |
955 | { | |
956 | if (lpd_command(fd, timeout, "\002%d cfA%03.3d%.15s\n", strlen(control), | |
957 | (int)getpid() % 1000, localhost)) | |
958 | { | |
959 | httpAddrFreeList(addrlist); | |
960 | close(fd); | |
961 | ||
962 | return (CUPS_BACKEND_FAILED); | |
963 | } | |
964 | ||
965 | fprintf(stderr, "INFO: Sending control file (%u bytes)\n", | |
966 | (unsigned)strlen(control)); | |
967 | ||
968 | if (lpd_write(fd, control, strlen(control) + 1) < (strlen(control) + 1)) | |
969 | { | |
970 | status = errno; | |
971 | perror("ERROR: Unable to write control file"); | |
972 | } | |
973 | else | |
974 | { | |
975 | alarm(timeout); | |
976 | ||
977 | if (read(fd, &status, 1) < 1) | |
978 | { | |
979 | fprintf(stderr, "WARNING: Remote host did not respond with control " | |
980 | "status byte after %d seconds!\n", timeout); | |
981 | status = errno; | |
982 | } | |
983 | ||
984 | alarm(0); | |
985 | } | |
986 | ||
987 | if (status != 0) | |
988 | fprintf(stderr, "ERROR: Remote host did not accept control file (%d)\n", | |
989 | status); | |
990 | else | |
991 | fputs("INFO: Control file sent successfully\n", stderr); | |
992 | } | |
993 | else | |
994 | status = 0; | |
995 | ||
996 | if (status == 0) | |
997 | { | |
998 | /* | |
999 | * Send the print file... | |
1000 | */ | |
1001 | ||
1002 | if (lpd_command(fd, timeout, "\003" CUPS_LLFMT " dfA%03.3d%.15s\n", | |
1003 | CUPS_LLCAST filestats.st_size, (int)getpid() % 1000, | |
1004 | localhost)) | |
1005 | { | |
1006 | httpAddrFreeList(addrlist); | |
1007 | close(fd); | |
1008 | ||
1009 | return (CUPS_BACKEND_FAILED); | |
1010 | } | |
1011 | ||
1012 | fprintf(stderr, "INFO: Sending data file (" CUPS_LLFMT " bytes)\n", | |
1013 | CUPS_LLCAST filestats.st_size); | |
1014 | ||
1015 | tbytes = 0; | |
1016 | for (copy = 0; copy < manual_copies; copy ++) | |
1017 | { | |
f42414bf | 1018 | lseek(print_fd, 0, SEEK_SET); |
ef416fc2 | 1019 | |
f42414bf | 1020 | while ((nbytes = read(print_fd, buffer, sizeof(buffer))) > 0) |
ef416fc2 | 1021 | { |
1022 | fprintf(stderr, "INFO: Spooling LPR job, %.0f%% complete...\n", | |
1023 | 100.0 * tbytes / filestats.st_size); | |
1024 | ||
1025 | if (lpd_write(fd, buffer, nbytes) < nbytes) | |
1026 | { | |
1027 | perror("ERROR: Unable to send print file to printer"); | |
1028 | break; | |
1029 | } | |
1030 | else | |
1031 | tbytes += nbytes; | |
1032 | } | |
1033 | } | |
1034 | ||
f42414bf | 1035 | if (mode == MODE_STANDARD) |
ef416fc2 | 1036 | { |
f42414bf | 1037 | if (tbytes < filestats.st_size) |
1038 | status = errno; | |
1039 | else if (lpd_write(fd, "", 1) < 1) | |
1040 | { | |
1041 | perror("ERROR: Unable to send trailing nul to printer"); | |
1042 | status = errno; | |
1043 | } | |
1044 | else | |
1045 | { | |
1046 | /* | |
1047 | * Read the status byte from the printer; if we can't read the byte | |
1048 | * back now, we should set status to "errno", however at this point | |
1049 | * we know the printer got the whole file and we don't necessarily | |
1050 | * want to requeue it over and over... | |
1051 | */ | |
ef416fc2 | 1052 | |
f42414bf | 1053 | alarm(timeout); |
ef416fc2 | 1054 | |
f42414bf | 1055 | if (recv(fd, &status, 1, 0) < 1) |
1056 | { | |
1057 | fprintf(stderr, "WARNING: Remote host did not respond with data " | |
1058 | "status byte after %d seconds!\n", timeout); | |
1059 | status = 0; | |
1060 | } | |
ef416fc2 | 1061 | |
f42414bf | 1062 | alarm(0); |
1063 | } | |
ef416fc2 | 1064 | } |
f42414bf | 1065 | else |
1066 | status = 0; | |
ef416fc2 | 1067 | |
1068 | if (status != 0) | |
1069 | fprintf(stderr, "ERROR: Remote host did not accept data file (%d)\n", | |
1070 | status); | |
1071 | else | |
1072 | fputs("INFO: Data file sent successfully\n", stderr); | |
1073 | } | |
1074 | ||
1075 | if (status == 0 && order == ORDER_DATA_CONTROL) | |
1076 | { | |
1077 | if (lpd_command(fd, timeout, "\002%d cfA%03.3d%.15s\n", strlen(control), | |
1078 | (int)getpid() % 1000, localhost)) | |
1079 | { | |
1080 | httpAddrFreeList(addrlist); | |
1081 | close(fd); | |
1082 | ||
1083 | return (CUPS_BACKEND_FAILED); | |
1084 | } | |
1085 | ||
1086 | fprintf(stderr, "INFO: Sending control file (%lu bytes)\n", | |
1087 | (unsigned long)strlen(control)); | |
1088 | ||
1089 | if (lpd_write(fd, control, strlen(control) + 1) < (strlen(control) + 1)) | |
1090 | { | |
1091 | status = errno; | |
1092 | perror("ERROR: Unable to write control file"); | |
1093 | } | |
1094 | else | |
1095 | { | |
1096 | alarm(timeout); | |
1097 | ||
1098 | if (read(fd, &status, 1) < 1) | |
1099 | { | |
1100 | fprintf(stderr, "WARNING: Remote host did not respond with control " | |
1101 | "status byte after %d seconds!\n", timeout); | |
1102 | status = errno; | |
1103 | } | |
1104 | ||
1105 | alarm(0); | |
1106 | } | |
1107 | ||
1108 | if (status != 0) | |
1109 | fprintf(stderr, "ERROR: Remote host did not accept control file (%d)\n", | |
1110 | status); | |
1111 | else | |
1112 | fputs("INFO: Control file sent successfully\n", stderr); | |
1113 | } | |
1114 | ||
1115 | /* | |
1116 | * Close the socket connection and input file... | |
1117 | */ | |
1118 | ||
1119 | close(fd); | |
ef416fc2 | 1120 | |
1121 | if (status == 0) | |
1122 | { | |
1123 | httpAddrFreeList(addrlist); | |
1124 | ||
1125 | return (CUPS_BACKEND_OK); | |
1126 | } | |
1127 | ||
1128 | /* | |
1129 | * Waiting for a retry... | |
1130 | */ | |
1131 | ||
1132 | sleep(30); | |
1133 | } | |
1134 | ||
1135 | httpAddrFreeList(addrlist); | |
1136 | ||
1137 | /* | |
1138 | * If we get here, then the job has been cancelled... | |
1139 | */ | |
1140 | ||
1141 | return (CUPS_BACKEND_FAILED); | |
1142 | } | |
1143 | ||
1144 | ||
1145 | /* | |
1146 | * 'lpd_timeout()' - Handle timeout alarms... | |
1147 | */ | |
1148 | ||
1149 | static void | |
1150 | lpd_timeout(int sig) /* I - Signal number */ | |
1151 | { | |
1152 | (void)sig; | |
1153 | ||
1154 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
1155 | signal(SIGALRM, lpd_timeout); | |
1156 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
1157 | } | |
1158 | ||
1159 | ||
1160 | /* | |
1161 | * 'lpd_write()' - Write a buffer of data to an LPD server. | |
1162 | */ | |
1163 | ||
1164 | static int /* O - Number of bytes written or -1 on error */ | |
1165 | lpd_write(int lpd_fd, /* I - LPD socket */ | |
1166 | char *buffer, /* I - Buffer to write */ | |
1167 | int length) /* I - Number of bytes to write */ | |
1168 | { | |
1169 | int bytes, /* Number of bytes written */ | |
1170 | total; /* Total number of bytes written */ | |
1171 | ||
1172 | ||
1173 | if (abort_job) | |
1174 | return (-1); | |
1175 | ||
1176 | total = 0; | |
1177 | while ((bytes = send(lpd_fd, buffer, length - total, 0)) >= 0) | |
1178 | { | |
1179 | total += bytes; | |
1180 | buffer += bytes; | |
1181 | ||
1182 | if (total == length) | |
1183 | break; | |
1184 | } | |
1185 | ||
1186 | if (bytes < 0) | |
1187 | return (-1); | |
1188 | else | |
1189 | return (length); | |
1190 | } | |
1191 | ||
1192 | ||
1193 | #ifndef HAVE_RRESVPORT_AF | |
1194 | /* | |
1195 | * 'rresvport_af()' - A simple implementation of rresvport_af(). | |
1196 | */ | |
1197 | ||
1198 | static int /* O - Socket or -1 on error */ | |
1199 | rresvport_af(int *port, /* IO - Port number to bind to */ | |
1200 | int family) /* I - Address family */ | |
1201 | { | |
1202 | http_addr_t addr; /* Socket address */ | |
1203 | int fd; /* Socket file descriptor */ | |
1204 | ||
1205 | ||
1206 | /* | |
1207 | * Try to create an IPv4 socket... | |
1208 | */ | |
1209 | ||
1210 | if ((fd = socket(family, SOCK_STREAM, 0)) < 0) | |
1211 | return (-1); | |
1212 | ||
1213 | /* | |
1214 | * Initialize the address buffer... | |
1215 | */ | |
1216 | ||
1217 | memset(&addr, 0, sizeof(addr)); | |
1218 | addr.addr.sa_family = family; | |
1219 | ||
1220 | /* | |
1221 | * Try to bind the socket to a reserved port... | |
1222 | */ | |
1223 | ||
1224 | while (*port > 511) | |
1225 | { | |
1226 | /* | |
1227 | * Set the port number... | |
1228 | */ | |
1229 | ||
1230 | # ifdef AF_INET6 | |
1231 | if (family == AF_INET6) | |
1232 | addr.ipv6.sin6_port = htons(*port); | |
1233 | else | |
1234 | # endif /* AF_INET6 */ | |
1235 | addr.ipv4.sin_port = htons(*port); | |
1236 | ||
1237 | /* | |
1238 | * Try binding the port to the socket; return if all is OK... | |
1239 | */ | |
1240 | ||
1241 | if (!bind(fd, (struct sockaddr *)&addr, sizeof(addr))) | |
1242 | return (fd); | |
1243 | ||
1244 | /* | |
1245 | * Stop if we have any error other than "address already in use"... | |
1246 | */ | |
1247 | ||
1248 | if (errno != EADDRINUSE) | |
1249 | { | |
1250 | # ifdef WIN32 | |
1251 | closesocket(fd); | |
1252 | # else | |
1253 | close(fd); | |
1254 | # endif /* WIN32 */ | |
1255 | ||
1256 | return (-1); | |
1257 | } | |
1258 | ||
1259 | /* | |
1260 | * Try the next port... | |
1261 | */ | |
1262 | ||
1263 | (*port)--; | |
1264 | } | |
1265 | ||
1266 | /* | |
1267 | * Wasn't able to bind to a reserved port, so close the socket and return | |
1268 | * -1... | |
1269 | */ | |
1270 | ||
1271 | # ifdef WIN32 | |
1272 | closesocket(fd); | |
1273 | # else | |
1274 | close(fd); | |
1275 | # endif /* WIN32 */ | |
1276 | ||
1277 | return (-1); | |
1278 | } | |
1279 | #endif /* !HAVE_RRESVPORT_AF */ | |
1280 | ||
1281 | ||
1282 | /* | |
1283 | * 'sigterm_handler()' - Handle 'terminate' signals that stop the backend. | |
1284 | */ | |
1285 | ||
1286 | static void | |
1287 | sigterm_handler(int sig) /* I - Signal */ | |
1288 | { | |
1289 | (void)sig; /* remove compiler warnings... */ | |
1290 | ||
1291 | abort_job = 1; | |
1292 | } | |
1293 | ||
1294 | ||
1295 | /* | |
f42414bf | 1296 | * End of "$Id: lpd.c 6398 2007-03-26 12:57:59Z mike $". |
ef416fc2 | 1297 | */ |