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ef416fc2 | 1 | /* |
b19ccc9e | 2 | * "$Id: lpd.c 7740 2008-07-14 23:58:05Z mike $" |
ef416fc2 | 3 | * |
4 | * Line Printer Daemon backend for the Common UNIX Printing System (CUPS). | |
5 | * | |
8b116e60 | 6 | * Copyright 2007-2009 by Apple Inc. |
f42414bf | 7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 8 | * |
9 | * These coded instructions, statements, and computer programs are the | |
bc44d920 | 10 | * property of Apple Inc. and are protected by Federal copyright |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
ef416fc2 | 12 | * "LICENSE" which should have been included with this file. If this |
bc44d920 | 13 | * file is missing or damaged, see the license at "http://www.cups.org/". |
ef416fc2 | 14 | * |
15 | * This file is subject to the Apple OS-Developed Software exception. | |
16 | * | |
17 | * Contents: | |
18 | * | |
19 | * main() - Send a file to the printer or server. | |
20 | * lpd_command() - Send an LPR command sequence and wait for a reply. | |
21 | * lpd_queue() - Queue a file using the Line Printer Daemon protocol. | |
22 | * lpd_timeout() - Handle timeout alarms... | |
23 | * lpd_write() - Write a buffer of data to an LPD server. | |
24 | * rresvport_af() - A simple implementation of rresvport_af(). | |
25 | * sigterm_handler() - Handle 'terminate' signals that stop the backend. | |
26 | */ | |
27 | ||
28 | /* | |
29 | * Include necessary headers. | |
30 | */ | |
31 | ||
ef416fc2 | 32 | #include <cups/http-private.h> |
7a14d768 | 33 | #include "backend-private.h" |
ef416fc2 | 34 | #include <stdarg.h> |
ef416fc2 | 35 | #include <sys/types.h> |
36 | #include <sys/stat.h> | |
ef416fc2 | 37 | |
38 | #ifdef WIN32 | |
39 | # include <winsock.h> | |
40 | #else | |
41 | # include <sys/socket.h> | |
42 | # include <netinet/in.h> | |
43 | # include <arpa/inet.h> | |
44 | # include <netdb.h> | |
45 | #endif /* WIN32 */ | |
fa73b229 | 46 | #ifdef __APPLE__ |
47 | # include <CoreFoundation/CFNumber.h> | |
48 | # include <CoreFoundation/CFPreferences.h> | |
49 | #endif /* __APPLE__ */ | |
ef416fc2 | 50 | |
51 | ||
52 | /* | |
53 | * Globals... | |
54 | */ | |
55 | ||
56 | static char tmpfilename[1024] = ""; /* Temporary spool file name */ | |
57 | static int abort_job = 0; /* Non-zero if we get SIGTERM */ | |
58 | ||
59 | ||
f42414bf | 60 | /* |
61 | * Print mode... | |
62 | */ | |
63 | ||
64 | #define MODE_STANDARD 0 /* Queue a copy */ | |
65 | #define MODE_STREAM 1 /* Stream a copy */ | |
66 | ||
67 | ||
ef416fc2 | 68 | /* |
69 | * The order for control and data files in LPD requests... | |
70 | */ | |
71 | ||
72 | #define ORDER_CONTROL_DATA 0 /* Control file first, then data */ | |
73 | #define ORDER_DATA_CONTROL 1 /* Data file first, then control */ | |
74 | ||
75 | ||
76 | /* | |
77 | * What to reserve... | |
78 | */ | |
79 | ||
80 | #define RESERVE_NONE 0 /* Don't reserve a priviledged port */ | |
81 | #define RESERVE_RFC1179 1 /* Reserve port 721-731 */ | |
82 | #define RESERVE_ANY 2 /* Reserve port 1-1023 */ | |
83 | ||
84 | ||
85 | /* | |
86 | * Local functions... | |
87 | */ | |
88 | ||
89 | static int lpd_command(int lpd_fd, int timeout, char *format, ...); | |
90 | static int lpd_queue(const char *hostname, int port, const char *printer, | |
f42414bf | 91 | int print_fd, int mode, const char *user, |
92 | const char *title, int copies, int banner, | |
93 | int format, int order, int reserve, | |
fa73b229 | 94 | int manual_copies, int timeout, int contimeout); |
ef416fc2 | 95 | static void lpd_timeout(int sig); |
96 | static int lpd_write(int lpd_fd, char *buffer, int length); | |
97 | #ifndef HAVE_RRESVPORT_AF | |
98 | static int rresvport_af(int *port, int family); | |
99 | #endif /* !HAVE_RRESVPORT_AF */ | |
100 | static void sigterm_handler(int sig); | |
101 | ||
102 | ||
103 | /* | |
104 | * 'main()' - Send a file to the printer or server. | |
105 | * | |
106 | * Usage: | |
107 | * | |
108 | * printer-uri job-id user title copies options [file] | |
109 | */ | |
110 | ||
111 | int /* O - Exit status */ | |
112 | main(int argc, /* I - Number of command-line arguments (6 or 7) */ | |
113 | char *argv[]) /* I - Command-line arguments */ | |
114 | { | |
1f0275e3 | 115 | const char *device_uri; /* Device URI */ |
acb056cb | 116 | char scheme[255], /* Scheme in URI */ |
7a14d768 MS |
117 | hostname[1024], /* Hostname */ |
118 | username[255], /* Username info */ | |
119 | resource[1024], /* Resource info (printer name) */ | |
120 | *options, /* Pointer to options */ | |
121 | *name, /* Name of option */ | |
122 | *value, /* Value of option */ | |
123 | sep, /* Separator character */ | |
124 | *filename, /* File to print */ | |
125 | title[256]; /* Title string */ | |
126 | int port; /* Port number */ | |
127 | int fd; /* Print file */ | |
128 | int status; /* Status of LPD job */ | |
129 | int mode; /* Print mode */ | |
130 | int banner; /* Print banner page? */ | |
131 | int format; /* Print format */ | |
132 | int order; /* Order of control/data files */ | |
133 | int reserve; /* Reserve priviledged port? */ | |
134 | int sanitize_title; /* Sanitize title string? */ | |
135 | int manual_copies, /* Do manual copies? */ | |
136 | timeout, /* Timeout */ | |
137 | contimeout, /* Connection timeout */ | |
138 | copies; /* Number of copies */ | |
ef416fc2 | 139 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
7a14d768 | 140 | struct sigaction action; /* Actions for POSIX signals */ |
ef416fc2 | 141 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ |
142 | ||
143 | ||
144 | /* | |
145 | * Make sure status messages are not buffered... | |
146 | */ | |
147 | ||
148 | setbuf(stderr, NULL); | |
149 | ||
150 | /* | |
151 | * Ignore SIGPIPE and catch SIGTERM signals... | |
152 | */ | |
153 | ||
154 | #ifdef HAVE_SIGSET | |
155 | sigset(SIGPIPE, SIG_IGN); | |
156 | sigset(SIGTERM, sigterm_handler); | |
157 | #elif defined(HAVE_SIGACTION) | |
158 | memset(&action, 0, sizeof(action)); | |
159 | action.sa_handler = SIG_IGN; | |
160 | sigaction(SIGPIPE, &action, NULL); | |
161 | ||
162 | sigemptyset(&action.sa_mask); | |
163 | sigaddset(&action.sa_mask, SIGTERM); | |
164 | action.sa_handler = sigterm_handler; | |
165 | sigaction(SIGTERM, &action, NULL); | |
166 | #else | |
167 | signal(SIGPIPE, SIG_IGN); | |
168 | signal(SIGTERM, sigterm_handler); | |
169 | #endif /* HAVE_SIGSET */ | |
170 | ||
171 | /* | |
172 | * Check command-line... | |
173 | */ | |
174 | ||
175 | if (argc == 1) | |
176 | { | |
8b450588 MS |
177 | printf("network lpd \"Unknown\" \"%s\"\n", |
178 | _cupsLangString(cupsLangDefault(), _("LPD/LPR Host or Printer"))); | |
ef416fc2 | 179 | return (CUPS_BACKEND_OK); |
180 | } | |
181 | else if (argc < 6 || argc > 7) | |
182 | { | |
db1f069b MS |
183 | _cupsLangPrintf(stderr, |
184 | _("Usage: %s job-id user title copies options [file]\n"), | |
185 | argv[0]); | |
ef416fc2 | 186 | return (CUPS_BACKEND_FAILED); |
187 | } | |
188 | ||
ef416fc2 | 189 | /* |
190 | * Extract the hostname and printer name from the URI... | |
191 | */ | |
192 | ||
1f0275e3 MS |
193 | if ((device_uri = cupsBackendDeviceURI(argv)) == NULL) |
194 | return (CUPS_BACKEND_FAILED); | |
195 | ||
acb056cb MS |
196 | httpSeparateURI(HTTP_URI_CODING_ALL, device_uri, scheme, sizeof(scheme), |
197 | username, sizeof(username), hostname, sizeof(hostname), &port, | |
ef416fc2 | 198 | resource, sizeof(resource)); |
199 | ||
a41f09e2 MS |
200 | if (!port) |
201 | port = 515; /* Default to port 515 */ | |
202 | ||
ef416fc2 | 203 | if (!username[0]) |
204 | { | |
205 | /* | |
206 | * If no username is in the device URI, then use the print job user... | |
207 | */ | |
208 | ||
209 | strlcpy(username, argv[2], sizeof(username)); | |
210 | } | |
211 | ||
212 | /* | |
213 | * See if there are any options... | |
214 | */ | |
215 | ||
f42414bf | 216 | mode = MODE_STANDARD; |
fa73b229 | 217 | banner = 0; |
218 | format = 'l'; | |
219 | order = ORDER_CONTROL_DATA; | |
220 | reserve = RESERVE_ANY; | |
221 | manual_copies = 1; | |
222 | timeout = 300; | |
223 | contimeout = 7 * 24 * 60 * 60; | |
ef416fc2 | 224 | |
fa73b229 | 225 | #ifdef __APPLE__ |
c0e1af83 | 226 | /* |
227 | * We want to pass utf-8 characters, not re-map them (3071945) | |
228 | */ | |
229 | ||
fa73b229 | 230 | sanitize_title = 0; |
231 | ||
c0e1af83 | 232 | /* |
233 | * Get the default timeout from a system preference... | |
234 | */ | |
235 | ||
fa73b229 | 236 | { |
237 | CFPropertyListRef pvalue; /* Preference value */ | |
238 | SInt32 toval; /* Timeout value */ | |
239 | ||
240 | ||
241 | pvalue = CFPreferencesCopyValue(CFSTR("timeout"), | |
242 | CFSTR("com.apple.print.backends"), | |
243 | kCFPreferencesAnyUser, | |
244 | kCFPreferencesCurrentHost); | |
245 | if (pvalue) | |
246 | { | |
247 | if (CFGetTypeID(pvalue) == CFNumberGetTypeID()) | |
248 | { | |
249 | CFNumberGetValue(pvalue, kCFNumberSInt32Type, &toval); | |
250 | contimeout = (int)toval; | |
251 | } | |
252 | ||
253 | CFRelease(pvalue); | |
254 | } | |
255 | } | |
256 | #else | |
257 | sanitize_title = 1; | |
258 | #endif /* __APPLE__ */ | |
ef416fc2 | 259 | |
260 | if ((options = strchr(resource, '?')) != NULL) | |
261 | { | |
262 | /* | |
263 | * Yup, terminate the device name string and move to the first | |
264 | * character of the options... | |
265 | */ | |
266 | ||
267 | *options++ = '\0'; | |
268 | ||
269 | /* | |
270 | * Parse options... | |
271 | */ | |
272 | ||
273 | while (*options) | |
274 | { | |
275 | /* | |
276 | * Get the name... | |
277 | */ | |
278 | ||
db1f069b | 279 | name = options; |
ef416fc2 | 280 | |
db1f069b MS |
281 | while (*options && *options != '=' && *options != '+' && *options != '&') |
282 | options ++; | |
283 | ||
284 | if ((sep = *options) != '\0') | |
285 | *options++ = '\0'; | |
286 | ||
287 | if (sep == '=') | |
ef416fc2 | 288 | { |
289 | /* | |
290 | * Get the value... | |
291 | */ | |
292 | ||
db1f069b | 293 | value = options; |
ef416fc2 | 294 | |
db1f069b | 295 | while (*options && *options != '+' && *options != '&') |
ef416fc2 | 296 | options ++; |
db1f069b MS |
297 | |
298 | if (*options) | |
299 | *options++ = '\0'; | |
ef416fc2 | 300 | } |
301 | else | |
db1f069b | 302 | value = (char *)""; |
ef416fc2 | 303 | |
304 | /* | |
305 | * Process the option... | |
306 | */ | |
307 | ||
fa73b229 | 308 | if (!strcasecmp(name, "banner")) |
ef416fc2 | 309 | { |
310 | /* | |
311 | * Set the banner... | |
312 | */ | |
313 | ||
fa73b229 | 314 | banner = !value[0] || !strcasecmp(value, "on") || |
315 | !strcasecmp(value, "yes") || !strcasecmp(value, "true"); | |
ef416fc2 | 316 | } |
fa73b229 | 317 | else if (!strcasecmp(name, "format") && value[0]) |
ef416fc2 | 318 | { |
319 | /* | |
320 | * Set output format... | |
321 | */ | |
322 | ||
fa73b229 | 323 | if (strchr("cdfglnoprtv", value[0])) |
ef416fc2 | 324 | format = value[0]; |
325 | else | |
db1f069b MS |
326 | _cupsLangPrintf(stderr, _("ERROR: Unknown format character \"%c\"\n"), |
327 | value[0]); | |
ef416fc2 | 328 | } |
f42414bf | 329 | else if (!strcasecmp(name, "mode") && value[0]) |
330 | { | |
331 | /* | |
332 | * Set control/data order... | |
333 | */ | |
334 | ||
335 | if (!strcasecmp(value, "standard")) | |
bc44d920 | 336 | mode = MODE_STANDARD; |
f42414bf | 337 | else if (!strcasecmp(value, "stream")) |
bc44d920 | 338 | mode = MODE_STREAM; |
f42414bf | 339 | else |
db1f069b MS |
340 | _cupsLangPrintf(stderr, _("ERROR: Unknown print mode \"%s\"\n"), |
341 | value); | |
f42414bf | 342 | } |
fa73b229 | 343 | else if (!strcasecmp(name, "order") && value[0]) |
ef416fc2 | 344 | { |
345 | /* | |
346 | * Set control/data order... | |
347 | */ | |
348 | ||
fa73b229 | 349 | if (!strcasecmp(value, "control,data")) |
ef416fc2 | 350 | order = ORDER_CONTROL_DATA; |
fa73b229 | 351 | else if (!strcasecmp(value, "data,control")) |
ef416fc2 | 352 | order = ORDER_DATA_CONTROL; |
353 | else | |
db1f069b MS |
354 | _cupsLangPrintf(stderr, _("ERROR: Unknown file order \"%s\"\n"), |
355 | value); | |
ef416fc2 | 356 | } |
fa73b229 | 357 | else if (!strcasecmp(name, "reserve")) |
ef416fc2 | 358 | { |
359 | /* | |
360 | * Set port reservation mode... | |
361 | */ | |
362 | ||
fa73b229 | 363 | if (!value[0] || !strcasecmp(value, "on") || |
364 | !strcasecmp(value, "yes") || !strcasecmp(value, "true") || | |
ef416fc2 | 365 | !strcasecmp(value, "rfc1179")) |
366 | reserve = RESERVE_RFC1179; | |
367 | else if (!strcasecmp(value, "any")) | |
368 | reserve = RESERVE_ANY; | |
369 | else | |
370 | reserve = RESERVE_NONE; | |
371 | } | |
fa73b229 | 372 | else if (!strcasecmp(name, "manual_copies")) |
ef416fc2 | 373 | { |
374 | /* | |
375 | * Set manual copies... | |
376 | */ | |
377 | ||
fa73b229 | 378 | manual_copies = !value[0] || !strcasecmp(value, "on") || |
379 | !strcasecmp(value, "yes") || !strcasecmp(value, "true"); | |
ef416fc2 | 380 | } |
fa73b229 | 381 | else if (!strcasecmp(name, "sanitize_title")) |
ef416fc2 | 382 | { |
383 | /* | |
384 | * Set sanitize title... | |
385 | */ | |
386 | ||
fa73b229 | 387 | sanitize_title = !value[0] || !strcasecmp(value, "on") || |
8b116e60 | 388 | !strcasecmp(value, "yes") || !strcasecmp(value, "true"); |
ef416fc2 | 389 | } |
fa73b229 | 390 | else if (!strcasecmp(name, "timeout")) |
ef416fc2 | 391 | { |
392 | /* | |
393 | * Set the timeout... | |
394 | */ | |
395 | ||
396 | if (atoi(value) > 0) | |
397 | timeout = atoi(value); | |
398 | } | |
fa73b229 | 399 | else if (!strcasecmp(name, "contimeout")) |
400 | { | |
401 | /* | |
c0e1af83 | 402 | * Set the connection timeout... |
fa73b229 | 403 | */ |
404 | ||
405 | if (atoi(value) > 0) | |
406 | contimeout = atoi(value); | |
407 | } | |
ef416fc2 | 408 | } |
409 | } | |
410 | ||
f42414bf | 411 | if (mode == MODE_STREAM) |
412 | order = ORDER_CONTROL_DATA; | |
413 | ||
414 | /* | |
415 | * If we have 7 arguments, print the file named on the command-line. | |
416 | * Otherwise, copy stdin to a temporary file and print the temporary | |
417 | * file. | |
418 | */ | |
419 | ||
420 | if (argc == 6 && mode == MODE_STANDARD) | |
421 | { | |
422 | /* | |
423 | * Copy stdin to a temporary file... | |
424 | */ | |
425 | ||
e07d4801 MS |
426 | http_addrlist_t *addrlist; /* Address list */ |
427 | int snmp_fd; /* SNMP socket */ | |
f42414bf | 428 | |
429 | ||
acb056cb MS |
430 | fputs("STATE: +connecting-to-device\n", stderr); |
431 | fprintf(stderr, "DEBUG: Looking up \"%s\"...\n", hostname); | |
432 | ||
e07d4801 MS |
433 | if ((addrlist = httpAddrGetList(hostname, AF_UNSPEC, "1")) == NULL) |
434 | { | |
435 | _cupsLangPrintf(stderr, _("ERROR: Unable to locate printer \'%s\'!\n"), | |
436 | hostname); | |
437 | return (CUPS_BACKEND_STOP); | |
438 | } | |
439 | ||
440 | snmp_fd = _cupsSNMPOpen(addrlist->addr.addr.sa_family); | |
441 | ||
f42414bf | 442 | if ((fd = cupsTempFd(tmpfilename, sizeof(tmpfilename))) < 0) |
443 | { | |
080811b1 | 444 | _cupsLangPrintError(_("ERROR: Unable to create temporary file")); |
f42414bf | 445 | return (CUPS_BACKEND_FAILED); |
446 | } | |
447 | ||
8b116e60 MS |
448 | _cupsLangPuts(stderr, _("INFO: Copying print data...\n")); |
449 | ||
4e6f60f0 | 450 | backendRunLoop(-1, fd, snmp_fd, &(addrlist->addr), 0, backendNetworkSideCB); |
e07d4801 MS |
451 | |
452 | if (snmp_fd >= 0) | |
453 | _cupsSNMPClose(snmp_fd); | |
454 | ||
455 | httpAddrFreeList(addrlist); | |
f42414bf | 456 | } |
457 | else if (argc == 6) | |
458 | { | |
459 | /* | |
460 | * Stream from stdin... | |
461 | */ | |
462 | ||
463 | filename = NULL; | |
464 | fd = 0; | |
465 | } | |
466 | else | |
467 | { | |
468 | filename = argv[6]; | |
469 | fd = open(filename, O_RDONLY); | |
470 | ||
471 | if (fd == -1) | |
472 | { | |
db1f069b MS |
473 | _cupsLangPrintf(stderr, _("ERROR: Unable to open print file %s: %s\n"), |
474 | filename, strerror(errno)); | |
f42414bf | 475 | return (CUPS_BACKEND_FAILED); |
476 | } | |
477 | } | |
478 | ||
ef416fc2 | 479 | /* |
480 | * Sanitize the document title... | |
481 | */ | |
482 | ||
483 | strlcpy(title, argv[3], sizeof(title)); | |
484 | ||
485 | if (sanitize_title) | |
486 | { | |
487 | /* | |
488 | * Sanitize the title string so that we don't cause problems on | |
489 | * the remote end... | |
490 | */ | |
491 | ||
db1f069b MS |
492 | char *ptr; |
493 | ||
ef416fc2 | 494 | for (ptr = title; *ptr; ptr ++) |
495 | if (!isalnum(*ptr & 255) && !isspace(*ptr & 255)) | |
496 | *ptr = '_'; | |
497 | } | |
498 | ||
499 | /* | |
500 | * Queue the job... | |
501 | */ | |
502 | ||
503 | if (argc > 6) | |
504 | { | |
505 | if (manual_copies) | |
506 | { | |
507 | manual_copies = atoi(argv[4]); | |
508 | copies = 1; | |
509 | } | |
510 | else | |
511 | { | |
512 | manual_copies = 1; | |
513 | copies = atoi(argv[4]); | |
514 | } | |
515 | ||
f42414bf | 516 | status = lpd_queue(hostname, port, resource + 1, fd, mode, |
ef416fc2 | 517 | username, title, copies, |
fa73b229 | 518 | banner, format, order, reserve, manual_copies, |
519 | timeout, contimeout); | |
ef416fc2 | 520 | |
521 | if (!status) | |
522 | fprintf(stderr, "PAGE: 1 %d\n", atoi(argv[4])); | |
523 | } | |
524 | else | |
f42414bf | 525 | status = lpd_queue(hostname, port, resource + 1, fd, mode, |
ef416fc2 | 526 | username, title, 1, |
fa73b229 | 527 | banner, format, order, reserve, 1, |
528 | timeout, contimeout); | |
ef416fc2 | 529 | |
530 | /* | |
531 | * Remove the temporary file if necessary... | |
532 | */ | |
533 | ||
534 | if (tmpfilename[0]) | |
535 | unlink(tmpfilename); | |
536 | ||
f42414bf | 537 | if (fd) |
538 | close(fd); | |
539 | ||
ef416fc2 | 540 | /* |
541 | * Return the queue status... | |
542 | */ | |
543 | ||
544 | return (status); | |
545 | } | |
546 | ||
547 | ||
548 | /* | |
549 | * 'lpd_command()' - Send an LPR command sequence and wait for a reply. | |
550 | */ | |
551 | ||
552 | static int /* O - Status of command */ | |
553 | lpd_command(int fd, /* I - Socket connection to LPD host */ | |
554 | int timeout, /* I - Seconds to wait for a response */ | |
555 | char *format, /* I - printf()-style format string */ | |
556 | ...) /* I - Additional args as necessary */ | |
557 | { | |
558 | va_list ap; /* Argument pointer */ | |
559 | char buf[1024]; /* Output buffer */ | |
560 | int bytes; /* Number of bytes to output */ | |
561 | char status; /* Status from command */ | |
562 | ||
563 | ||
564 | /* | |
565 | * Don't try to send commands if the job has been cancelled... | |
566 | */ | |
567 | ||
568 | if (abort_job) | |
569 | return (-1); | |
570 | ||
571 | /* | |
572 | * Format the string... | |
573 | */ | |
574 | ||
575 | va_start(ap, format); | |
576 | bytes = vsnprintf(buf, sizeof(buf), format, ap); | |
577 | va_end(ap); | |
578 | ||
579 | fprintf(stderr, "DEBUG: lpd_command %2.2x %s", buf[0], buf + 1); | |
580 | ||
581 | /* | |
582 | * Send the command... | |
583 | */ | |
584 | ||
585 | fprintf(stderr, "DEBUG: Sending command string (%d bytes)...\n", bytes); | |
586 | ||
587 | if (lpd_write(fd, buf, bytes) < bytes) | |
588 | { | |
080811b1 | 589 | _cupsLangPrintError(_("ERROR: Unable to send LPD command")); |
ef416fc2 | 590 | return (-1); |
591 | } | |
592 | ||
593 | /* | |
594 | * Read back the status from the command and return it... | |
595 | */ | |
596 | ||
c0e1af83 | 597 | fputs("DEBUG: Reading command status...\n", stderr); |
ef416fc2 | 598 | |
599 | alarm(timeout); | |
600 | ||
601 | if (recv(fd, &status, 1, 0) < 1) | |
602 | { | |
db1f069b MS |
603 | _cupsLangPrintf(stderr, |
604 | _("WARNING: Remote host did not respond with command " | |
605 | "status byte after %d seconds!\n"), timeout); | |
ef416fc2 | 606 | status = errno; |
607 | } | |
608 | ||
609 | alarm(0); | |
610 | ||
611 | fprintf(stderr, "DEBUG: lpd_command returning %d\n", status); | |
612 | ||
613 | return (status); | |
614 | } | |
615 | ||
616 | ||
617 | /* | |
618 | * 'lpd_queue()' - Queue a file using the Line Printer Daemon protocol. | |
619 | */ | |
620 | ||
621 | static int /* O - Zero on success, non-zero on failure */ | |
622 | lpd_queue(const char *hostname, /* I - Host to connect to */ | |
623 | int port, /* I - Port to connect on */ | |
624 | const char *printer, /* I - Printer/queue name */ | |
f42414bf | 625 | int print_fd, /* I - File to print */ |
626 | int mode, /* I - Print mode */ | |
ef416fc2 | 627 | const char *user, /* I - Requesting user */ |
628 | const char *title, /* I - Job title */ | |
629 | int copies, /* I - Number of copies */ | |
630 | int banner, /* I - Print LPD banner? */ | |
631 | int format, /* I - Format specifier */ | |
632 | int order, /* I - Order of data/control files */ | |
633 | int reserve, /* I - Reserve ports? */ | |
634 | int manual_copies, /* I - Do copies by hand... */ | |
fa73b229 | 635 | int timeout, /* I - Timeout... */ |
636 | int contimeout) /* I - Connection timeout */ | |
ef416fc2 | 637 | { |
ef416fc2 | 638 | char localhost[255]; /* Local host name */ |
639 | int error; /* Error number */ | |
640 | struct stat filestats; /* File statistics */ | |
641 | int lport; /* LPD connection local port */ | |
642 | int fd; /* LPD socket */ | |
643 | char control[10240], /* LPD control 'file' */ | |
644 | *cptr; /* Pointer into control file string */ | |
645 | char status; /* Status byte from command */ | |
646 | char portname[255]; /* Port name */ | |
c0e1af83 | 647 | int delay; /* Delay for retries... */ |
26d47ec6 | 648 | char addrname[256]; /* Address name */ |
ef416fc2 | 649 | http_addrlist_t *addrlist, /* Address list */ |
650 | *addr; /* Socket address */ | |
426c6a59 MS |
651 | int snmp_fd, /* SNMP socket */ |
652 | have_supplies; /* Printer supports supply levels? */ | |
ef416fc2 | 653 | int copy; /* Copies written */ |
fa73b229 | 654 | time_t start_time; /* Time of first connect */ |
fa73b229 | 655 | int recoverable; /* Recoverable error shown? */ |
ef416fc2 | 656 | size_t nbytes; /* Number of bytes written */ |
657 | off_t tbytes; /* Total bytes written */ | |
a74454a7 | 658 | char buffer[32768]; /* Output buffer */ |
ef416fc2 | 659 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
660 | struct sigaction action; /* Actions for POSIX signals */ | |
661 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
662 | ||
663 | ||
664 | /* | |
665 | * Setup an alarm handler for timeouts... | |
666 | */ | |
667 | ||
668 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
669 | sigset(SIGALRM, lpd_timeout); | |
670 | #elif defined(HAVE_SIGACTION) | |
671 | memset(&action, 0, sizeof(action)); | |
672 | ||
673 | sigemptyset(&action.sa_mask); | |
674 | action.sa_handler = lpd_timeout; | |
675 | sigaction(SIGALRM, &action, NULL); | |
676 | #else | |
677 | signal(SIGALRM, lpd_timeout); | |
678 | #endif /* HAVE_SIGSET */ | |
679 | ||
680 | /* | |
681 | * Find the printer... | |
682 | */ | |
683 | ||
684 | sprintf(portname, "%d", port); | |
685 | ||
acb056cb | 686 | fputs("STATE: +connecting-to-device\n", stderr); |
1340db2d MS |
687 | fprintf(stderr, "DEBUG: Looking up \"%s\"...\n", hostname); |
688 | ||
ef416fc2 | 689 | if ((addrlist = httpAddrGetList(hostname, AF_UNSPEC, portname)) == NULL) |
690 | { | |
db1f069b MS |
691 | _cupsLangPrintf(stderr, _("ERROR: Unable to locate printer \'%s\'!\n"), |
692 | hostname); | |
ef416fc2 | 693 | return (CUPS_BACKEND_STOP); |
694 | } | |
695 | ||
fa73b229 | 696 | /* |
c0e1af83 | 697 | * Remember when we started trying to connect to the printer... |
fa73b229 | 698 | */ |
699 | ||
fa73b229 | 700 | recoverable = 0; |
fa73b229 | 701 | start_time = time(NULL); |
702 | ||
ef416fc2 | 703 | /* |
704 | * Loop forever trying to print the file... | |
705 | */ | |
706 | ||
707 | while (!abort_job) | |
708 | { | |
709 | /* | |
710 | * First try to reserve a port for this connection... | |
711 | */ | |
712 | ||
acb056cb MS |
713 | fprintf(stderr, "DEBUG: Connecting to %s:%d for printer %s\n", hostname, |
714 | port, printer); | |
8b450588 | 715 | _cupsLangPuts(stderr, _("INFO: Connecting to printer...\n")); |
ef416fc2 | 716 | |
c0e1af83 | 717 | for (lport = reserve == RESERVE_RFC1179 ? 732 : 1024, addr = addrlist, |
718 | delay = 5;; | |
ef416fc2 | 719 | addr = addr->next) |
720 | { | |
721 | /* | |
722 | * Stop if this job has been cancelled... | |
723 | */ | |
724 | ||
725 | if (abort_job) | |
726 | { | |
727 | httpAddrFreeList(addrlist); | |
728 | ||
729 | return (CUPS_BACKEND_FAILED); | |
730 | } | |
731 | ||
732 | /* | |
733 | * Choose the next priviledged port... | |
734 | */ | |
735 | ||
736 | if (!addr) | |
737 | addr = addrlist; | |
738 | ||
739 | lport --; | |
740 | ||
741 | if (lport < 721 && reserve == RESERVE_RFC1179) | |
742 | lport = 731; | |
743 | else if (lport < 1) | |
744 | lport = 1023; | |
745 | ||
746 | #ifdef HAVE_GETEUID | |
747 | if (geteuid() || !reserve) | |
748 | #else | |
749 | if (getuid() || !reserve) | |
750 | #endif /* HAVE_GETEUID */ | |
751 | { | |
752 | /* | |
753 | * Just create a regular socket... | |
754 | */ | |
755 | ||
756 | if ((fd = socket(addr->addr.addr.sa_family, SOCK_STREAM, 0)) < 0) | |
757 | { | |
080811b1 | 758 | _cupsLangPrintError(_("ERROR: Unable to create socket")); |
ef416fc2 | 759 | sleep(1); |
760 | ||
761 | continue; | |
762 | } | |
763 | ||
764 | lport = 0; | |
765 | } | |
766 | else | |
767 | { | |
768 | /* | |
769 | * We're running as root and want to comply with RFC 1179. Reserve a | |
770 | * priviledged lport between 721 and 731... | |
771 | */ | |
772 | ||
773 | if ((fd = rresvport_af(&lport, addr->addr.addr.sa_family)) < 0) | |
774 | { | |
080811b1 | 775 | _cupsLangPrintError(_("ERROR: Unable to reserve port")); |
ef416fc2 | 776 | sleep(1); |
777 | ||
778 | continue; | |
779 | } | |
780 | } | |
781 | ||
782 | /* | |
783 | * Connect to the printer or server... | |
784 | */ | |
785 | ||
786 | if (abort_job) | |
787 | { | |
788 | httpAddrFreeList(addrlist); | |
789 | ||
790 | close(fd); | |
791 | ||
792 | return (CUPS_BACKEND_FAILED); | |
793 | } | |
794 | ||
795 | if (!connect(fd, &(addr->addr.addr), httpAddrLength(&(addr->addr)))) | |
796 | break; | |
797 | ||
798 | error = errno; | |
799 | close(fd); | |
800 | fd = -1; | |
801 | ||
802 | if (addr->next) | |
803 | continue; | |
804 | ||
805 | if (getenv("CLASS") != NULL) | |
806 | { | |
807 | /* | |
808 | * If the CLASS environment variable is set, the job was submitted | |
809 | * to a class and not to a specific queue. In this case, we want | |
810 | * to abort immediately so that the job can be requeued on the next | |
811 | * available printer in the class. | |
812 | */ | |
813 | ||
db1f069b MS |
814 | _cupsLangPuts(stderr, |
815 | _("INFO: Unable to contact printer, queuing on next " | |
816 | "printer in class...\n")); | |
ef416fc2 | 817 | |
818 | httpAddrFreeList(addrlist); | |
819 | ||
820 | /* | |
821 | * Sleep 5 seconds to keep the job from requeuing too rapidly... | |
822 | */ | |
823 | ||
824 | sleep(5); | |
825 | ||
826 | return (CUPS_BACKEND_FAILED); | |
827 | } | |
828 | ||
829 | if (error == ECONNREFUSED || error == EHOSTDOWN || | |
830 | error == EHOSTUNREACH) | |
831 | { | |
fa73b229 | 832 | if (contimeout && (time(NULL) - start_time) > contimeout) |
833 | { | |
db1f069b | 834 | _cupsLangPuts(stderr, _("ERROR: Printer not responding!\n")); |
fa73b229 | 835 | return (CUPS_BACKEND_FAILED); |
836 | } | |
837 | ||
fa73b229 | 838 | recoverable = 1; |
c0e1af83 | 839 | |
db1f069b MS |
840 | _cupsLangPrintf(stderr, |
841 | _("WARNING: recoverable: Network host \'%s\' is busy; " | |
842 | "will retry in %d seconds...\n"), hostname, delay); | |
c0e1af83 | 843 | |
844 | sleep(delay); | |
845 | ||
846 | if (delay < 30) | |
847 | delay += 5; | |
ef416fc2 | 848 | } |
849 | else if (error == EADDRINUSE) | |
850 | { | |
851 | /* | |
852 | * Try on another port... | |
853 | */ | |
854 | ||
855 | sleep(1); | |
856 | } | |
857 | else | |
858 | { | |
fa73b229 | 859 | recoverable = 1; |
c0e1af83 | 860 | |
861 | fprintf(stderr, "DEBUG: Connection error: %s\n", strerror(errno)); | |
db1f069b MS |
862 | _cupsLangPuts(stderr, |
863 | _("ERROR: recoverable: Unable to connect to printer; " | |
864 | "will retry in 30 seconds...\n")); | |
c0e1af83 | 865 | sleep(30); |
ef416fc2 | 866 | } |
867 | } | |
868 | ||
fa73b229 | 869 | if (recoverable) |
870 | { | |
871 | /* | |
872 | * If we've shown a recoverable error make sure the printer proxies | |
873 | * have a chance to see the recovered message. Not pretty but | |
874 | * necessary for now... | |
875 | */ | |
876 | ||
877 | fputs("INFO: recovered: \n", stderr); | |
878 | sleep(5); | |
879 | } | |
fa73b229 | 880 | |
757d2cad | 881 | fputs("STATE: -connecting-to-device\n", stderr); |
8b450588 | 882 | _cupsLangPuts(stderr, _("INFO: Connected to printer...\n")); |
26d47ec6 | 883 | |
884 | #ifdef AF_INET6 | |
885 | if (addr->addr.addr.sa_family == AF_INET6) | |
886 | fprintf(stderr, "DEBUG: Connected to [%s]:%d (IPv6) (local port %d)...\n", | |
c0e1af83 | 887 | httpAddrString(&addr->addr, addrname, sizeof(addrname)), |
888 | ntohs(addr->addr.ipv6.sin6_port), lport); | |
26d47ec6 | 889 | else |
890 | #endif /* AF_INET6 */ | |
891 | if (addr->addr.addr.sa_family == AF_INET) | |
892 | fprintf(stderr, "DEBUG: Connected to %s:%d (IPv4) (local port %d)...\n", | |
c0e1af83 | 893 | httpAddrString(&addr->addr, addrname, sizeof(addrname)), |
894 | ntohs(addr->addr.ipv4.sin_port), lport); | |
ef416fc2 | 895 | |
7a14d768 MS |
896 | /* |
897 | * See if the printer supports SNMP... | |
898 | */ | |
899 | ||
900 | if ((snmp_fd = _cupsSNMPOpen(addr->addr.addr.sa_family)) >= 0) | |
426c6a59 MS |
901 | have_supplies = !backendSNMPSupplies(snmp_fd, &(addr->addr), NULL, NULL); |
902 | else | |
903 | have_supplies = 0; | |
7a14d768 MS |
904 | |
905 | /* | |
906 | * Check for side-channel requests... | |
907 | */ | |
908 | ||
909 | backendCheckSideChannel(snmp_fd, &(addr->addr)); | |
910 | ||
ef416fc2 | 911 | /* |
912 | * Next, open the print file and figure out its size... | |
913 | */ | |
914 | ||
f42414bf | 915 | if (print_fd) |
ef416fc2 | 916 | { |
c0e1af83 | 917 | /* |
918 | * Use the size from the print file... | |
919 | */ | |
920 | ||
f42414bf | 921 | if (fstat(print_fd, &filestats)) |
922 | { | |
923 | httpAddrFreeList(addrlist); | |
924 | close(fd); | |
ef416fc2 | 925 | |
080811b1 | 926 | _cupsLangPrintError(_("ERROR: unable to stat print file")); |
f42414bf | 927 | return (CUPS_BACKEND_FAILED); |
928 | } | |
ef416fc2 | 929 | |
f42414bf | 930 | filestats.st_size *= manual_copies; |
ef416fc2 | 931 | } |
f42414bf | 932 | else |
c0e1af83 | 933 | { |
934 | /* | |
935 | * Use a "very large value" for the size so that the printer will | |
936 | * keep printing until we close the connection... | |
937 | */ | |
938 | ||
f42414bf | 939 | #ifdef _LARGEFILE_SOURCE |
940 | filestats.st_size = (size_t)(999999999999.0); | |
941 | #else | |
942 | filestats.st_size = 2147483647; | |
943 | #endif /* _LARGEFILE_SOURCE */ | |
c0e1af83 | 944 | } |
ef416fc2 | 945 | |
946 | /* | |
947 | * Send a job header to the printer, specifying no banner page and | |
948 | * literal output... | |
949 | */ | |
950 | ||
951 | if (lpd_command(fd, timeout, "\002%s\n", | |
952 | printer)) /* Receive print job(s) */ | |
953 | { | |
954 | httpAddrFreeList(addrlist); | |
955 | close(fd); | |
956 | return (CUPS_BACKEND_FAILED); | |
957 | } | |
958 | ||
757d2cad | 959 | httpGetHostname(NULL, localhost, sizeof(localhost)); |
ef416fc2 | 960 | |
961 | snprintf(control, sizeof(control), | |
962 | "H%.31s\n" /* RFC 1179, Section 7.2 - host name <= 31 chars */ | |
963 | "P%.31s\n" /* RFC 1179, Section 7.2 - user name <= 31 chars */ | |
964 | "J%.99s\n", /* RFC 1179, Section 7.2 - job name <= 99 chars */ | |
965 | localhost, user, title); | |
966 | cptr = control + strlen(control); | |
967 | ||
968 | if (banner) | |
969 | { | |
970 | snprintf(cptr, sizeof(control) - (cptr - control), | |
971 | "C%.31s\n" /* RFC 1179, Section 7.2 - class name <= 31 chars */ | |
972 | "L%s\n", | |
973 | localhost, user); | |
974 | cptr += strlen(cptr); | |
975 | } | |
976 | ||
977 | while (copies > 0) | |
978 | { | |
979 | snprintf(cptr, sizeof(control) - (cptr - control), "%cdfA%03d%.15s\n", | |
980 | format, (int)getpid() % 1000, localhost); | |
981 | cptr += strlen(cptr); | |
982 | copies --; | |
983 | } | |
984 | ||
985 | snprintf(cptr, sizeof(control) - (cptr - control), | |
986 | "UdfA%03d%.15s\n" | |
987 | "N%.131s\n", /* RFC 1179, Section 7.2 - sourcefile name <= 131 chars */ | |
988 | (int)getpid() % 1000, localhost, title); | |
989 | ||
990 | fprintf(stderr, "DEBUG: Control file is:\n%s", control); | |
991 | ||
992 | if (order == ORDER_CONTROL_DATA) | |
993 | { | |
7a14d768 MS |
994 | /* |
995 | * Check for side-channel requests... | |
996 | */ | |
997 | ||
998 | backendCheckSideChannel(snmp_fd, &(addr->addr)); | |
999 | ||
1000 | /* | |
1001 | * Send the control file... | |
1002 | */ | |
1003 | ||
ef416fc2 | 1004 | if (lpd_command(fd, timeout, "\002%d cfA%03.3d%.15s\n", strlen(control), |
1005 | (int)getpid() % 1000, localhost)) | |
1006 | { | |
1007 | httpAddrFreeList(addrlist); | |
1008 | close(fd); | |
1009 | ||
1010 | return (CUPS_BACKEND_FAILED); | |
1011 | } | |
1012 | ||
db1f069b MS |
1013 | _cupsLangPrintf(stderr, _("INFO: Sending control file (%u bytes)\n"), |
1014 | (unsigned)strlen(control)); | |
ef416fc2 | 1015 | |
1016 | if (lpd_write(fd, control, strlen(control) + 1) < (strlen(control) + 1)) | |
1017 | { | |
1018 | status = errno; | |
080811b1 | 1019 | _cupsLangPrintError(_("ERROR: Unable to write control file")); |
ef416fc2 | 1020 | } |
1021 | else | |
1022 | { | |
1023 | alarm(timeout); | |
1024 | ||
1025 | if (read(fd, &status, 1) < 1) | |
1026 | { | |
db1f069b MS |
1027 | _cupsLangPrintf(stderr, |
1028 | _("WARNING: Remote host did not respond with control " | |
1029 | "status byte after %d seconds!\n"), timeout); | |
ef416fc2 | 1030 | status = errno; |
1031 | } | |
1032 | ||
1033 | alarm(0); | |
1034 | } | |
1035 | ||
1036 | if (status != 0) | |
db1f069b MS |
1037 | _cupsLangPrintf(stderr, |
1038 | _("ERROR: Remote host did not accept control file " | |
1039 | "(%d)\n"), status); | |
ef416fc2 | 1040 | else |
db1f069b | 1041 | _cupsLangPuts(stderr, _("INFO: Control file sent successfully\n")); |
ef416fc2 | 1042 | } |
1043 | else | |
1044 | status = 0; | |
1045 | ||
1046 | if (status == 0) | |
1047 | { | |
7a14d768 MS |
1048 | /* |
1049 | * Check for side-channel requests... | |
1050 | */ | |
1051 | ||
1052 | backendCheckSideChannel(snmp_fd, &(addr->addr)); | |
1053 | ||
ef416fc2 | 1054 | /* |
1055 | * Send the print file... | |
1056 | */ | |
1057 | ||
1058 | if (lpd_command(fd, timeout, "\003" CUPS_LLFMT " dfA%03.3d%.15s\n", | |
1059 | CUPS_LLCAST filestats.st_size, (int)getpid() % 1000, | |
1060 | localhost)) | |
1061 | { | |
1062 | httpAddrFreeList(addrlist); | |
1063 | close(fd); | |
1064 | ||
1065 | return (CUPS_BACKEND_FAILED); | |
1066 | } | |
1067 | ||
db1f069b | 1068 | _cupsLangPrintf(stderr, |
c0e1af83 | 1069 | #ifdef HAVE_LONG_LONG |
db1f069b | 1070 | _("INFO: Sending data file (%lld bytes)\n"), |
c0e1af83 | 1071 | #else |
db1f069b | 1072 | _("INFO: Sending data file (%ld bytes)\n"), |
c0e1af83 | 1073 | #endif /* HAVE_LONG_LONG */ |
db1f069b | 1074 | CUPS_LLCAST filestats.st_size); |
ef416fc2 | 1075 | |
1076 | tbytes = 0; | |
1077 | for (copy = 0; copy < manual_copies; copy ++) | |
1078 | { | |
f42414bf | 1079 | lseek(print_fd, 0, SEEK_SET); |
ef416fc2 | 1080 | |
f42414bf | 1081 | while ((nbytes = read(print_fd, buffer, sizeof(buffer))) > 0) |
ef416fc2 | 1082 | { |
db1f069b MS |
1083 | _cupsLangPrintf(stderr, |
1084 | _("INFO: Spooling LPR job, %.0f%% complete...\n"), | |
1085 | 100.0 * tbytes / filestats.st_size); | |
ef416fc2 | 1086 | |
1087 | if (lpd_write(fd, buffer, nbytes) < nbytes) | |
1088 | { | |
080811b1 | 1089 | _cupsLangPrintError(_("ERROR: Unable to send print file to printer")); |
ef416fc2 | 1090 | break; |
1091 | } | |
1092 | else | |
1093 | tbytes += nbytes; | |
1094 | } | |
1095 | } | |
1096 | ||
f42414bf | 1097 | if (mode == MODE_STANDARD) |
ef416fc2 | 1098 | { |
f42414bf | 1099 | if (tbytes < filestats.st_size) |
1100 | status = errno; | |
1101 | else if (lpd_write(fd, "", 1) < 1) | |
1102 | { | |
080811b1 | 1103 | _cupsLangPrintError(_("ERROR: Unable to send trailing nul to printer")); |
f42414bf | 1104 | status = errno; |
1105 | } | |
1106 | else | |
1107 | { | |
1108 | /* | |
1109 | * Read the status byte from the printer; if we can't read the byte | |
1110 | * back now, we should set status to "errno", however at this point | |
1111 | * we know the printer got the whole file and we don't necessarily | |
1112 | * want to requeue it over and over... | |
1113 | */ | |
ef416fc2 | 1114 | |
f42414bf | 1115 | alarm(timeout); |
ef416fc2 | 1116 | |
f42414bf | 1117 | if (recv(fd, &status, 1, 0) < 1) |
1118 | { | |
db1f069b MS |
1119 | _cupsLangPrintf(stderr, |
1120 | _("WARNING: Remote host did not respond with data " | |
1121 | "status byte after %d seconds!\n"), timeout); | |
f42414bf | 1122 | status = 0; |
1123 | } | |
ef416fc2 | 1124 | |
f42414bf | 1125 | alarm(0); |
1126 | } | |
ef416fc2 | 1127 | } |
f42414bf | 1128 | else |
1129 | status = 0; | |
ef416fc2 | 1130 | |
1131 | if (status != 0) | |
db1f069b MS |
1132 | _cupsLangPrintf(stderr, |
1133 | _("ERROR: Remote host did not accept data file (%d)\n"), | |
1134 | status); | |
ef416fc2 | 1135 | else |
db1f069b | 1136 | _cupsLangPuts(stderr, _("INFO: Data file sent successfully\n")); |
ef416fc2 | 1137 | } |
1138 | ||
1139 | if (status == 0 && order == ORDER_DATA_CONTROL) | |
1140 | { | |
7a14d768 MS |
1141 | /* |
1142 | * Check for side-channel requests... | |
1143 | */ | |
1144 | ||
1145 | backendCheckSideChannel(snmp_fd, &(addr->addr)); | |
1146 | ||
1147 | /* | |
1148 | * Send control file... | |
1149 | */ | |
1150 | ||
ef416fc2 | 1151 | if (lpd_command(fd, timeout, "\002%d cfA%03.3d%.15s\n", strlen(control), |
1152 | (int)getpid() % 1000, localhost)) | |
1153 | { | |
1154 | httpAddrFreeList(addrlist); | |
1155 | close(fd); | |
1156 | ||
1157 | return (CUPS_BACKEND_FAILED); | |
1158 | } | |
1159 | ||
db1f069b MS |
1160 | _cupsLangPrintf(stderr, _("INFO: Sending control file (%lu bytes)\n"), |
1161 | (unsigned long)strlen(control)); | |
ef416fc2 | 1162 | |
1163 | if (lpd_write(fd, control, strlen(control) + 1) < (strlen(control) + 1)) | |
1164 | { | |
1165 | status = errno; | |
080811b1 | 1166 | _cupsLangPrintError(_("ERROR: Unable to write control file")); |
ef416fc2 | 1167 | } |
1168 | else | |
1169 | { | |
1170 | alarm(timeout); | |
1171 | ||
1172 | if (read(fd, &status, 1) < 1) | |
1173 | { | |
db1f069b MS |
1174 | _cupsLangPrintf(stderr, |
1175 | _("WARNING: Remote host did not respond with control " | |
1176 | "status byte after %d seconds!\n"), timeout); | |
ef416fc2 | 1177 | status = errno; |
1178 | } | |
1179 | ||
1180 | alarm(0); | |
1181 | } | |
1182 | ||
1183 | if (status != 0) | |
db1f069b MS |
1184 | _cupsLangPrintf(stderr, |
1185 | _("ERROR: Remote host did not accept control file " | |
1186 | "(%d)\n"), status); | |
ef416fc2 | 1187 | else |
db1f069b | 1188 | _cupsLangPuts(stderr, _("INFO: Control file sent successfully\n")); |
ef416fc2 | 1189 | } |
1190 | ||
7a14d768 | 1191 | /* |
52f6f666 | 1192 | * Collect the final supply levels as needed... |
7a14d768 MS |
1193 | */ |
1194 | ||
426c6a59 | 1195 | if (have_supplies) |
52f6f666 | 1196 | backendSNMPSupplies(snmp_fd, &(addr->addr), NULL, NULL); |
7a14d768 | 1197 | |
ef416fc2 | 1198 | /* |
1199 | * Close the socket connection and input file... | |
1200 | */ | |
1201 | ||
1202 | close(fd); | |
ef416fc2 | 1203 | |
1204 | if (status == 0) | |
1205 | { | |
1206 | httpAddrFreeList(addrlist); | |
1207 | ||
1208 | return (CUPS_BACKEND_OK); | |
1209 | } | |
1210 | ||
1211 | /* | |
1212 | * Waiting for a retry... | |
1213 | */ | |
1214 | ||
1215 | sleep(30); | |
1216 | } | |
1217 | ||
1218 | httpAddrFreeList(addrlist); | |
1219 | ||
1220 | /* | |
1221 | * If we get here, then the job has been cancelled... | |
1222 | */ | |
1223 | ||
1224 | return (CUPS_BACKEND_FAILED); | |
1225 | } | |
1226 | ||
1227 | ||
1228 | /* | |
1229 | * 'lpd_timeout()' - Handle timeout alarms... | |
1230 | */ | |
1231 | ||
1232 | static void | |
1233 | lpd_timeout(int sig) /* I - Signal number */ | |
1234 | { | |
1235 | (void)sig; | |
1236 | ||
1237 | #if !defined(HAVE_SIGSET) && !defined(HAVE_SIGACTION) | |
1238 | signal(SIGALRM, lpd_timeout); | |
1239 | #endif /* !HAVE_SIGSET && !HAVE_SIGACTION */ | |
1240 | } | |
1241 | ||
1242 | ||
1243 | /* | |
1244 | * 'lpd_write()' - Write a buffer of data to an LPD server. | |
1245 | */ | |
1246 | ||
1247 | static int /* O - Number of bytes written or -1 on error */ | |
1248 | lpd_write(int lpd_fd, /* I - LPD socket */ | |
1249 | char *buffer, /* I - Buffer to write */ | |
1250 | int length) /* I - Number of bytes to write */ | |
1251 | { | |
1252 | int bytes, /* Number of bytes written */ | |
1253 | total; /* Total number of bytes written */ | |
1254 | ||
1255 | ||
1256 | if (abort_job) | |
1257 | return (-1); | |
1258 | ||
1259 | total = 0; | |
1260 | while ((bytes = send(lpd_fd, buffer, length - total, 0)) >= 0) | |
1261 | { | |
1262 | total += bytes; | |
1263 | buffer += bytes; | |
1264 | ||
1265 | if (total == length) | |
1266 | break; | |
1267 | } | |
1268 | ||
1269 | if (bytes < 0) | |
1270 | return (-1); | |
1271 | else | |
1272 | return (length); | |
1273 | } | |
1274 | ||
1275 | ||
1276 | #ifndef HAVE_RRESVPORT_AF | |
1277 | /* | |
1278 | * 'rresvport_af()' - A simple implementation of rresvport_af(). | |
1279 | */ | |
1280 | ||
1281 | static int /* O - Socket or -1 on error */ | |
1282 | rresvport_af(int *port, /* IO - Port number to bind to */ | |
1283 | int family) /* I - Address family */ | |
1284 | { | |
1285 | http_addr_t addr; /* Socket address */ | |
1286 | int fd; /* Socket file descriptor */ | |
1287 | ||
1288 | ||
1289 | /* | |
1290 | * Try to create an IPv4 socket... | |
1291 | */ | |
1292 | ||
1293 | if ((fd = socket(family, SOCK_STREAM, 0)) < 0) | |
1294 | return (-1); | |
1295 | ||
1296 | /* | |
1297 | * Initialize the address buffer... | |
1298 | */ | |
1299 | ||
1300 | memset(&addr, 0, sizeof(addr)); | |
1301 | addr.addr.sa_family = family; | |
1302 | ||
1303 | /* | |
1304 | * Try to bind the socket to a reserved port... | |
1305 | */ | |
1306 | ||
1307 | while (*port > 511) | |
1308 | { | |
1309 | /* | |
1310 | * Set the port number... | |
1311 | */ | |
1312 | ||
1313 | # ifdef AF_INET6 | |
1314 | if (family == AF_INET6) | |
1315 | addr.ipv6.sin6_port = htons(*port); | |
1316 | else | |
1317 | # endif /* AF_INET6 */ | |
1318 | addr.ipv4.sin_port = htons(*port); | |
1319 | ||
1320 | /* | |
1321 | * Try binding the port to the socket; return if all is OK... | |
1322 | */ | |
1323 | ||
1324 | if (!bind(fd, (struct sockaddr *)&addr, sizeof(addr))) | |
1325 | return (fd); | |
1326 | ||
1327 | /* | |
1328 | * Stop if we have any error other than "address already in use"... | |
1329 | */ | |
1330 | ||
1331 | if (errno != EADDRINUSE) | |
1332 | { | |
1333 | # ifdef WIN32 | |
1334 | closesocket(fd); | |
1335 | # else | |
1336 | close(fd); | |
1337 | # endif /* WIN32 */ | |
1338 | ||
1339 | return (-1); | |
1340 | } | |
1341 | ||
1342 | /* | |
1343 | * Try the next port... | |
1344 | */ | |
1345 | ||
1346 | (*port)--; | |
1347 | } | |
1348 | ||
1349 | /* | |
1350 | * Wasn't able to bind to a reserved port, so close the socket and return | |
1351 | * -1... | |
1352 | */ | |
1353 | ||
1354 | # ifdef WIN32 | |
1355 | closesocket(fd); | |
1356 | # else | |
1357 | close(fd); | |
1358 | # endif /* WIN32 */ | |
1359 | ||
1360 | return (-1); | |
1361 | } | |
1362 | #endif /* !HAVE_RRESVPORT_AF */ | |
1363 | ||
1364 | ||
1365 | /* | |
1366 | * 'sigterm_handler()' - Handle 'terminate' signals that stop the backend. | |
1367 | */ | |
1368 | ||
1369 | static void | |
1370 | sigterm_handler(int sig) /* I - Signal */ | |
1371 | { | |
1372 | (void)sig; /* remove compiler warnings... */ | |
1373 | ||
1374 | abort_job = 1; | |
1375 | } | |
1376 | ||
1377 | ||
1378 | /* | |
b19ccc9e | 1379 | * End of "$Id: lpd.c 7740 2008-07-14 23:58:05Z mike $". |
ef416fc2 | 1380 | */ |