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ef416fc2 | 1 | /* |
b19ccc9e | 2 | * "$Id: lpd.c 7740 2008-07-14 23:58:05Z mike $" |
ef416fc2 | 3 | * |
0837b7e8 | 4 | * Line Printer Daemon backend for CUPS. |
ef416fc2 | 5 | * |
12f89d24 | 6 | * Copyright 2007-2012 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. | |
ef416fc2 | 22 | * lpd_write() - Write a buffer of data to an LPD server. |
23 | * rresvport_af() - A simple implementation of rresvport_af(). | |
24 | * sigterm_handler() - Handle 'terminate' signals that stop the backend. | |
25 | */ | |
26 | ||
27 | /* | |
28 | * Include necessary headers. | |
29 | */ | |
30 | ||
ef416fc2 | 31 | #include <cups/http-private.h> |
7a14d768 | 32 | #include "backend-private.h" |
ef416fc2 | 33 | #include <stdarg.h> |
ef416fc2 | 34 | #include <sys/types.h> |
35 | #include <sys/stat.h> | |
c7017ecc | 36 | #include <stdio.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 | ||
12f89d24 | 89 | static int lpd_command(int lpd_fd, char *format, ...); |
c8fef167 MS |
90 | static int lpd_queue(const char *hostname, http_addrlist_t *addrlist, |
91 | const char *printer, int print_fd, int snmp_fd, | |
92 | int mode, const char *user, const char *title, | |
93 | int copies, int banner, int format, int order, | |
94 | int reserve, int manual_copies, int timeout, | |
3e7fe0ca | 95 | int contimeout, const char *orighost); |
ef416fc2 | 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 */ | |
c8fef167 MS |
127 | char portname[256]; /* Port name (string) */ |
128 | http_addrlist_t *addrlist; /* List of addresses for printer */ | |
129 | int snmp_fd; /* SNMP socket */ | |
7a14d768 MS |
130 | int fd; /* Print file */ |
131 | int status; /* Status of LPD job */ | |
132 | int mode; /* Print mode */ | |
133 | int banner; /* Print banner page? */ | |
134 | int format; /* Print format */ | |
135 | int order; /* Order of control/data files */ | |
136 | int reserve; /* Reserve priviledged port? */ | |
137 | int sanitize_title; /* Sanitize title string? */ | |
138 | int manual_copies, /* Do manual copies? */ | |
139 | timeout, /* Timeout */ | |
140 | contimeout, /* Connection timeout */ | |
141 | copies; /* Number of copies */ | |
eac3a0a0 MS |
142 | ssize_t bytes = 0; /* Initial bytes read */ |
143 | char buffer[16384]; /* Initial print buffer */ | |
ef416fc2 | 144 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
7a14d768 | 145 | struct sigaction action; /* Actions for POSIX signals */ |
ef416fc2 | 146 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ |
3e7fe0ca MS |
147 | int num_jobopts; /* Number of job options */ |
148 | cups_option_t *jobopts = NULL; /* Job options */ | |
ef416fc2 | 149 | |
150 | ||
151 | /* | |
152 | * Make sure status messages are not buffered... | |
153 | */ | |
154 | ||
155 | setbuf(stderr, NULL); | |
156 | ||
157 | /* | |
158 | * Ignore SIGPIPE and catch SIGTERM signals... | |
159 | */ | |
160 | ||
161 | #ifdef HAVE_SIGSET | |
162 | sigset(SIGPIPE, SIG_IGN); | |
163 | sigset(SIGTERM, sigterm_handler); | |
164 | #elif defined(HAVE_SIGACTION) | |
165 | memset(&action, 0, sizeof(action)); | |
166 | action.sa_handler = SIG_IGN; | |
167 | sigaction(SIGPIPE, &action, NULL); | |
168 | ||
169 | sigemptyset(&action.sa_mask); | |
170 | sigaddset(&action.sa_mask, SIGTERM); | |
171 | action.sa_handler = sigterm_handler; | |
172 | sigaction(SIGTERM, &action, NULL); | |
173 | #else | |
174 | signal(SIGPIPE, SIG_IGN); | |
175 | signal(SIGTERM, sigterm_handler); | |
176 | #endif /* HAVE_SIGSET */ | |
177 | ||
178 | /* | |
179 | * Check command-line... | |
180 | */ | |
181 | ||
182 | if (argc == 1) | |
183 | { | |
8b450588 MS |
184 | printf("network lpd \"Unknown\" \"%s\"\n", |
185 | _cupsLangString(cupsLangDefault(), _("LPD/LPR Host or Printer"))); | |
ef416fc2 | 186 | return (CUPS_BACKEND_OK); |
187 | } | |
188 | else if (argc < 6 || argc > 7) | |
189 | { | |
db1f069b | 190 | _cupsLangPrintf(stderr, |
0837b7e8 | 191 | _("Usage: %s job-id user title copies options [file]"), |
db1f069b | 192 | argv[0]); |
ef416fc2 | 193 | return (CUPS_BACKEND_FAILED); |
194 | } | |
195 | ||
3e7fe0ca MS |
196 | num_jobopts = cupsParseOptions(argv[5], 0, &jobopts); |
197 | ||
ef416fc2 | 198 | /* |
199 | * Extract the hostname and printer name from the URI... | |
200 | */ | |
201 | ||
0268488e MS |
202 | while ((device_uri = cupsBackendDeviceURI(argv)) == NULL) |
203 | { | |
204 | _cupsLangPrintFilter(stderr, "INFO", _("Unable to locate printer.")); | |
205 | sleep(10); | |
206 | ||
207 | if (getenv("CLASS") != NULL) | |
208 | return (CUPS_BACKEND_FAILED); | |
209 | } | |
1f0275e3 | 210 | |
acb056cb MS |
211 | httpSeparateURI(HTTP_URI_CODING_ALL, device_uri, scheme, sizeof(scheme), |
212 | username, sizeof(username), hostname, sizeof(hostname), &port, | |
ef416fc2 | 213 | resource, sizeof(resource)); |
214 | ||
a41f09e2 MS |
215 | if (!port) |
216 | port = 515; /* Default to port 515 */ | |
217 | ||
ef416fc2 | 218 | if (!username[0]) |
219 | { | |
220 | /* | |
221 | * If no username is in the device URI, then use the print job user... | |
222 | */ | |
223 | ||
224 | strlcpy(username, argv[2], sizeof(username)); | |
225 | } | |
226 | ||
227 | /* | |
228 | * See if there are any options... | |
229 | */ | |
230 | ||
f42414bf | 231 | mode = MODE_STANDARD; |
fa73b229 | 232 | banner = 0; |
233 | format = 'l'; | |
234 | order = ORDER_CONTROL_DATA; | |
235 | reserve = RESERVE_ANY; | |
236 | manual_copies = 1; | |
237 | timeout = 300; | |
238 | contimeout = 7 * 24 * 60 * 60; | |
ef416fc2 | 239 | |
fa73b229 | 240 | #ifdef __APPLE__ |
c0e1af83 | 241 | /* |
0268488e | 242 | * We want to pass UTF-8 characters by default, not re-map them (3071945) |
c0e1af83 | 243 | */ |
244 | ||
fa73b229 | 245 | sanitize_title = 0; |
0268488e | 246 | #else |
c0e1af83 | 247 | /* |
0268488e | 248 | * Otherwise we want to re-map UTF-8 to "safe" characters by default... |
c0e1af83 | 249 | */ |
250 | ||
fa73b229 | 251 | sanitize_title = 1; |
252 | #endif /* __APPLE__ */ | |
ef416fc2 | 253 | |
254 | if ((options = strchr(resource, '?')) != NULL) | |
255 | { | |
256 | /* | |
257 | * Yup, terminate the device name string and move to the first | |
258 | * character of the options... | |
259 | */ | |
260 | ||
261 | *options++ = '\0'; | |
262 | ||
263 | /* | |
264 | * Parse options... | |
265 | */ | |
266 | ||
267 | while (*options) | |
268 | { | |
269 | /* | |
270 | * Get the name... | |
271 | */ | |
272 | ||
db1f069b | 273 | name = options; |
ef416fc2 | 274 | |
db1f069b MS |
275 | while (*options && *options != '=' && *options != '+' && *options != '&') |
276 | options ++; | |
277 | ||
278 | if ((sep = *options) != '\0') | |
279 | *options++ = '\0'; | |
280 | ||
281 | if (sep == '=') | |
ef416fc2 | 282 | { |
283 | /* | |
284 | * Get the value... | |
285 | */ | |
286 | ||
db1f069b | 287 | value = options; |
ef416fc2 | 288 | |
db1f069b | 289 | while (*options && *options != '+' && *options != '&') |
ef416fc2 | 290 | options ++; |
db1f069b MS |
291 | |
292 | if (*options) | |
293 | *options++ = '\0'; | |
ef416fc2 | 294 | } |
295 | else | |
db1f069b | 296 | value = (char *)""; |
ef416fc2 | 297 | |
298 | /* | |
299 | * Process the option... | |
300 | */ | |
301 | ||
88f9aafc | 302 | if (!_cups_strcasecmp(name, "banner")) |
ef416fc2 | 303 | { |
304 | /* | |
305 | * Set the banner... | |
306 | */ | |
307 | ||
88f9aafc MS |
308 | banner = !value[0] || !_cups_strcasecmp(value, "on") || |
309 | !_cups_strcasecmp(value, "yes") || !_cups_strcasecmp(value, "true"); | |
ef416fc2 | 310 | } |
88f9aafc | 311 | else if (!_cups_strcasecmp(name, "format") && value[0]) |
ef416fc2 | 312 | { |
313 | /* | |
314 | * Set output format... | |
315 | */ | |
316 | ||
fa73b229 | 317 | if (strchr("cdfglnoprtv", value[0])) |
ef416fc2 | 318 | format = value[0]; |
319 | else | |
0837b7e8 MS |
320 | _cupsLangPrintFilter(stderr, "ERROR", |
321 | _("Unknown format character: \"%c\"."), | |
322 | value[0]); | |
ef416fc2 | 323 | } |
88f9aafc | 324 | else if (!_cups_strcasecmp(name, "mode") && value[0]) |
f42414bf | 325 | { |
326 | /* | |
327 | * Set control/data order... | |
328 | */ | |
329 | ||
88f9aafc | 330 | if (!_cups_strcasecmp(value, "standard")) |
bc44d920 | 331 | mode = MODE_STANDARD; |
88f9aafc | 332 | else if (!_cups_strcasecmp(value, "stream")) |
bc44d920 | 333 | mode = MODE_STREAM; |
f42414bf | 334 | else |
0837b7e8 MS |
335 | _cupsLangPrintFilter(stderr, "ERROR", |
336 | _("Unknown print mode: \"%s\"."), value); | |
f42414bf | 337 | } |
88f9aafc | 338 | else if (!_cups_strcasecmp(name, "order") && value[0]) |
ef416fc2 | 339 | { |
340 | /* | |
341 | * Set control/data order... | |
342 | */ | |
343 | ||
88f9aafc | 344 | if (!_cups_strcasecmp(value, "control,data")) |
ef416fc2 | 345 | order = ORDER_CONTROL_DATA; |
88f9aafc | 346 | else if (!_cups_strcasecmp(value, "data,control")) |
ef416fc2 | 347 | order = ORDER_DATA_CONTROL; |
348 | else | |
0837b7e8 MS |
349 | _cupsLangPrintFilter(stderr, "ERROR", |
350 | _("Unknown file order: \"%s\"."), value); | |
ef416fc2 | 351 | } |
88f9aafc | 352 | else if (!_cups_strcasecmp(name, "reserve")) |
ef416fc2 | 353 | { |
354 | /* | |
355 | * Set port reservation mode... | |
356 | */ | |
357 | ||
88f9aafc MS |
358 | if (!value[0] || !_cups_strcasecmp(value, "on") || |
359 | !_cups_strcasecmp(value, "yes") || !_cups_strcasecmp(value, "true") || | |
360 | !_cups_strcasecmp(value, "rfc1179")) | |
ef416fc2 | 361 | reserve = RESERVE_RFC1179; |
88f9aafc | 362 | else if (!_cups_strcasecmp(value, "any")) |
ef416fc2 | 363 | reserve = RESERVE_ANY; |
364 | else | |
365 | reserve = RESERVE_NONE; | |
366 | } | |
88f9aafc | 367 | else if (!_cups_strcasecmp(name, "manual_copies")) |
ef416fc2 | 368 | { |
369 | /* | |
370 | * Set manual copies... | |
371 | */ | |
372 | ||
88f9aafc MS |
373 | manual_copies = !value[0] || !_cups_strcasecmp(value, "on") || |
374 | !_cups_strcasecmp(value, "yes") || !_cups_strcasecmp(value, "true"); | |
ef416fc2 | 375 | } |
88f9aafc | 376 | else if (!_cups_strcasecmp(name, "sanitize_title")) |
ef416fc2 | 377 | { |
378 | /* | |
379 | * Set sanitize title... | |
380 | */ | |
381 | ||
88f9aafc MS |
382 | sanitize_title = !value[0] || !_cups_strcasecmp(value, "on") || |
383 | !_cups_strcasecmp(value, "yes") || !_cups_strcasecmp(value, "true"); | |
ef416fc2 | 384 | } |
88f9aafc | 385 | else if (!_cups_strcasecmp(name, "timeout")) |
ef416fc2 | 386 | { |
387 | /* | |
388 | * Set the timeout... | |
389 | */ | |
390 | ||
391 | if (atoi(value) > 0) | |
392 | timeout = atoi(value); | |
393 | } | |
88f9aafc | 394 | else if (!_cups_strcasecmp(name, "contimeout")) |
fa73b229 | 395 | { |
396 | /* | |
c0e1af83 | 397 | * Set the connection timeout... |
fa73b229 | 398 | */ |
399 | ||
400 | if (atoi(value) > 0) | |
401 | contimeout = atoi(value); | |
402 | } | |
ef416fc2 | 403 | } |
404 | } | |
405 | ||
f42414bf | 406 | if (mode == MODE_STREAM) |
407 | order = ORDER_CONTROL_DATA; | |
408 | ||
c8fef167 MS |
409 | /* |
410 | * Find the printer... | |
411 | */ | |
412 | ||
413 | snprintf(portname, sizeof(portname), "%d", port); | |
414 | ||
415 | fputs("STATE: +connecting-to-device\n", stderr); | |
416 | fprintf(stderr, "DEBUG: Looking up \"%s\"...\n", hostname); | |
417 | ||
418 | while ((addrlist = httpAddrGetList(hostname, AF_UNSPEC, portname)) == NULL) | |
419 | { | |
420 | _cupsLangPrintFilter(stderr, "INFO", | |
421 | _("Unable to locate printer \"%s\"."), hostname); | |
422 | sleep(10); | |
423 | ||
424 | if (getenv("CLASS") != NULL) | |
425 | { | |
426 | fputs("STATE: -connecting-to-device\n", stderr); | |
427 | exit(CUPS_BACKEND_FAILED); | |
428 | } | |
429 | } | |
430 | ||
431 | snmp_fd = _cupsSNMPOpen(addrlist->addr.addr.sa_family); | |
432 | ||
433 | /* | |
434 | * Wait for data from the filter... | |
435 | */ | |
436 | ||
437 | if (argc == 6) | |
eac3a0a0 | 438 | { |
f14324a7 | 439 | if (!backendWaitLoop(snmp_fd, &(addrlist->addr), 0, backendNetworkSideCB)) |
c8fef167 | 440 | return (CUPS_BACKEND_OK); |
eac3a0a0 MS |
441 | else if (mode == MODE_STANDARD && |
442 | (bytes = read(0, buffer, sizeof(buffer))) <= 0) | |
443 | return (CUPS_BACKEND_OK); | |
444 | } | |
c8fef167 | 445 | |
f42414bf | 446 | /* |
447 | * If we have 7 arguments, print the file named on the command-line. | |
448 | * Otherwise, copy stdin to a temporary file and print the temporary | |
449 | * file. | |
450 | */ | |
451 | ||
452 | if (argc == 6 && mode == MODE_STANDARD) | |
453 | { | |
454 | /* | |
455 | * Copy stdin to a temporary file... | |
456 | */ | |
457 | ||
f42414bf | 458 | if ((fd = cupsTempFd(tmpfilename, sizeof(tmpfilename))) < 0) |
459 | { | |
c7017ecc | 460 | perror("DEBUG: Unable to create temporary file"); |
f42414bf | 461 | return (CUPS_BACKEND_FAILED); |
462 | } | |
463 | ||
0837b7e8 | 464 | _cupsLangPrintFilter(stderr, "INFO", _("Copying print data.")); |
8b116e60 | 465 | |
eac3a0a0 MS |
466 | if (bytes > 0) |
467 | write(fd, buffer, bytes); | |
468 | ||
469 | backendRunLoop(-1, fd, snmp_fd, &(addrlist->addr), 0, 0, | |
ef55b745 | 470 | backendNetworkSideCB); |
f42414bf | 471 | } |
472 | else if (argc == 6) | |
473 | { | |
474 | /* | |
475 | * Stream from stdin... | |
476 | */ | |
477 | ||
478 | filename = NULL; | |
479 | fd = 0; | |
480 | } | |
481 | else | |
482 | { | |
483 | filename = argv[6]; | |
484 | fd = open(filename, O_RDONLY); | |
485 | ||
486 | if (fd == -1) | |
487 | { | |
0837b7e8 | 488 | _cupsLangPrintError("ERROR", _("Unable to open print file")); |
f42414bf | 489 | return (CUPS_BACKEND_FAILED); |
490 | } | |
491 | } | |
492 | ||
ef416fc2 | 493 | /* |
494 | * Sanitize the document title... | |
495 | */ | |
496 | ||
497 | strlcpy(title, argv[3], sizeof(title)); | |
498 | ||
499 | if (sanitize_title) | |
500 | { | |
501 | /* | |
502 | * Sanitize the title string so that we don't cause problems on | |
503 | * the remote end... | |
504 | */ | |
505 | ||
db1f069b MS |
506 | char *ptr; |
507 | ||
ef416fc2 | 508 | for (ptr = title; *ptr; ptr ++) |
509 | if (!isalnum(*ptr & 255) && !isspace(*ptr & 255)) | |
510 | *ptr = '_'; | |
511 | } | |
512 | ||
513 | /* | |
514 | * Queue the job... | |
515 | */ | |
516 | ||
517 | if (argc > 6) | |
518 | { | |
519 | if (manual_copies) | |
520 | { | |
521 | manual_copies = atoi(argv[4]); | |
522 | copies = 1; | |
523 | } | |
524 | else | |
525 | { | |
526 | manual_copies = 1; | |
527 | copies = atoi(argv[4]); | |
528 | } | |
529 | ||
c8fef167 MS |
530 | status = lpd_queue(hostname, addrlist, resource + 1, fd, snmp_fd, mode, |
531 | username, title, copies, banner, format, order, reserve, | |
3e7fe0ca MS |
532 | manual_copies, timeout, contimeout, |
533 | cupsGetOption("job-originating-host-name", num_jobopts, | |
534 | jobopts)); | |
ef416fc2 | 535 | |
536 | if (!status) | |
537 | fprintf(stderr, "PAGE: 1 %d\n", atoi(argv[4])); | |
538 | } | |
539 | else | |
c8fef167 MS |
540 | status = lpd_queue(hostname, addrlist, resource + 1, fd, snmp_fd, mode, |
541 | username, title, 1, banner, format, order, reserve, 1, | |
3e7fe0ca MS |
542 | timeout, contimeout, |
543 | cupsGetOption("job-originating-host-name", num_jobopts, | |
544 | jobopts)); | |
ef416fc2 | 545 | |
546 | /* | |
547 | * Remove the temporary file if necessary... | |
548 | */ | |
549 | ||
550 | if (tmpfilename[0]) | |
551 | unlink(tmpfilename); | |
552 | ||
f42414bf | 553 | if (fd) |
554 | close(fd); | |
555 | ||
c8fef167 MS |
556 | if (snmp_fd >= 0) |
557 | _cupsSNMPClose(snmp_fd); | |
558 | ||
ef416fc2 | 559 | /* |
560 | * Return the queue status... | |
561 | */ | |
562 | ||
563 | return (status); | |
564 | } | |
565 | ||
566 | ||
567 | /* | |
568 | * 'lpd_command()' - Send an LPR command sequence and wait for a reply. | |
569 | */ | |
570 | ||
571 | static int /* O - Status of command */ | |
572 | lpd_command(int fd, /* I - Socket connection to LPD host */ | |
ef416fc2 | 573 | char *format, /* I - printf()-style format string */ |
574 | ...) /* I - Additional args as necessary */ | |
575 | { | |
576 | va_list ap; /* Argument pointer */ | |
577 | char buf[1024]; /* Output buffer */ | |
578 | int bytes; /* Number of bytes to output */ | |
579 | char status; /* Status from command */ | |
580 | ||
581 | ||
582 | /* | |
c8fef167 | 583 | * Don't try to send commands if the job has been canceled... |
ef416fc2 | 584 | */ |
585 | ||
586 | if (abort_job) | |
587 | return (-1); | |
588 | ||
589 | /* | |
590 | * Format the string... | |
591 | */ | |
592 | ||
593 | va_start(ap, format); | |
594 | bytes = vsnprintf(buf, sizeof(buf), format, ap); | |
595 | va_end(ap); | |
596 | ||
597 | fprintf(stderr, "DEBUG: lpd_command %2.2x %s", buf[0], buf + 1); | |
598 | ||
599 | /* | |
600 | * Send the command... | |
601 | */ | |
602 | ||
603 | fprintf(stderr, "DEBUG: Sending command string (%d bytes)...\n", bytes); | |
604 | ||
605 | if (lpd_write(fd, buf, bytes) < bytes) | |
606 | { | |
c7017ecc | 607 | perror("DEBUG: Unable to send LPD command"); |
ef416fc2 | 608 | return (-1); |
609 | } | |
610 | ||
611 | /* | |
612 | * Read back the status from the command and return it... | |
613 | */ | |
614 | ||
c0e1af83 | 615 | fputs("DEBUG: Reading command status...\n", stderr); |
ef416fc2 | 616 | |
ef416fc2 | 617 | if (recv(fd, &status, 1, 0) < 1) |
618 | { | |
f3c17241 | 619 | _cupsLangPrintFilter(stderr, "WARNING", _("The printer did not respond.")); |
ef416fc2 | 620 | status = errno; |
621 | } | |
622 | ||
ef416fc2 | 623 | fprintf(stderr, "DEBUG: lpd_command returning %d\n", status); |
624 | ||
625 | return (status); | |
626 | } | |
627 | ||
628 | ||
629 | /* | |
630 | * 'lpd_queue()' - Queue a file using the Line Printer Daemon protocol. | |
631 | */ | |
632 | ||
633 | static int /* O - Zero on success, non-zero on failure */ | |
c8fef167 MS |
634 | lpd_queue(const char *hostname, /* I - Host to connect to */ |
635 | http_addrlist_t *addrlist, /* I - List of host addresses */ | |
636 | const char *printer, /* I - Printer/queue name */ | |
637 | int print_fd, /* I - File to print */ | |
638 | int snmp_fd, /* I - SNMP socket */ | |
639 | int mode, /* I - Print mode */ | |
640 | const char *user, /* I - Requesting user */ | |
641 | const char *title, /* I - Job title */ | |
642 | int copies, /* I - Number of copies */ | |
643 | int banner, /* I - Print LPD banner? */ | |
644 | int format, /* I - Format specifier */ | |
645 | int order, /* I - Order of data/control files */ | |
646 | int reserve, /* I - Reserve ports? */ | |
647 | int manual_copies,/* I - Do copies by hand... */ | |
648 | int timeout, /* I - Timeout... */ | |
3e7fe0ca MS |
649 | int contimeout, /* I - Connection timeout */ |
650 | const char *orighost) /* I - job-originating-host-name */ | |
ef416fc2 | 651 | { |
ef416fc2 | 652 | char localhost[255]; /* Local host name */ |
653 | int error; /* Error number */ | |
654 | struct stat filestats; /* File statistics */ | |
655 | int lport; /* LPD connection local port */ | |
656 | int fd; /* LPD socket */ | |
657 | char control[10240], /* LPD control 'file' */ | |
658 | *cptr; /* Pointer into control file string */ | |
659 | char status; /* Status byte from command */ | |
c0e1af83 | 660 | int delay; /* Delay for retries... */ |
26d47ec6 | 661 | char addrname[256]; /* Address name */ |
c8fef167 MS |
662 | http_addrlist_t *addr; /* Socket address */ |
663 | int have_supplies; /* Printer supports supply levels? */ | |
ef416fc2 | 664 | int copy; /* Copies written */ |
fa73b229 | 665 | time_t start_time; /* Time of first connect */ |
ef416fc2 | 666 | size_t nbytes; /* Number of bytes written */ |
667 | off_t tbytes; /* Total bytes written */ | |
a74454a7 | 668 | char buffer[32768]; /* Output buffer */ |
12f89d24 MS |
669 | #ifdef WIN32 |
670 | DWORD tv; /* Timeout in milliseconds */ | |
ef416fc2 | 671 | #else |
12f89d24 MS |
672 | struct timeval tv; /* Timeout in secs and usecs */ |
673 | #endif /* WIN32 */ | |
674 | ||
ef416fc2 | 675 | |
fa73b229 | 676 | /* |
c0e1af83 | 677 | * Remember when we started trying to connect to the printer... |
fa73b229 | 678 | */ |
679 | ||
4d301e69 | 680 | start_time = time(NULL); |
fa73b229 | 681 | |
ef416fc2 | 682 | /* |
683 | * Loop forever trying to print the file... | |
684 | */ | |
685 | ||
686 | while (!abort_job) | |
687 | { | |
688 | /* | |
689 | * First try to reserve a port for this connection... | |
690 | */ | |
691 | ||
acb056cb | 692 | fprintf(stderr, "DEBUG: Connecting to %s:%d for printer %s\n", hostname, |
c8fef167 | 693 | _httpAddrPort(&(addrlist->addr)), printer); |
0837b7e8 | 694 | _cupsLangPrintFilter(stderr, "INFO", _("Connecting to printer.")); |
ef416fc2 | 695 | |
c0e1af83 | 696 | for (lport = reserve == RESERVE_RFC1179 ? 732 : 1024, addr = addrlist, |
697 | delay = 5;; | |
ef416fc2 | 698 | addr = addr->next) |
699 | { | |
700 | /* | |
c8fef167 | 701 | * Stop if this job has been canceled... |
ef416fc2 | 702 | */ |
703 | ||
704 | if (abort_job) | |
ef416fc2 | 705 | return (CUPS_BACKEND_FAILED); |
ef416fc2 | 706 | |
707 | /* | |
708 | * Choose the next priviledged port... | |
709 | */ | |
710 | ||
711 | if (!addr) | |
712 | addr = addrlist; | |
713 | ||
714 | lport --; | |
715 | ||
716 | if (lport < 721 && reserve == RESERVE_RFC1179) | |
717 | lport = 731; | |
718 | else if (lport < 1) | |
719 | lport = 1023; | |
720 | ||
721 | #ifdef HAVE_GETEUID | |
722 | if (geteuid() || !reserve) | |
723 | #else | |
724 | if (getuid() || !reserve) | |
725 | #endif /* HAVE_GETEUID */ | |
726 | { | |
727 | /* | |
728 | * Just create a regular socket... | |
729 | */ | |
730 | ||
731 | if ((fd = socket(addr->addr.addr.sa_family, SOCK_STREAM, 0)) < 0) | |
732 | { | |
c7017ecc | 733 | perror("DEBUG: Unable to create socket"); |
ef416fc2 | 734 | sleep(1); |
735 | ||
736 | continue; | |
737 | } | |
738 | ||
739 | lport = 0; | |
740 | } | |
741 | else | |
742 | { | |
743 | /* | |
744 | * We're running as root and want to comply with RFC 1179. Reserve a | |
745 | * priviledged lport between 721 and 731... | |
746 | */ | |
747 | ||
748 | if ((fd = rresvport_af(&lport, addr->addr.addr.sa_family)) < 0) | |
749 | { | |
c7017ecc | 750 | perror("DEBUG: Unable to reserve port"); |
ef416fc2 | 751 | sleep(1); |
752 | ||
753 | continue; | |
754 | } | |
755 | } | |
756 | ||
757 | /* | |
758 | * Connect to the printer or server... | |
759 | */ | |
760 | ||
761 | if (abort_job) | |
762 | { | |
ef416fc2 | 763 | close(fd); |
764 | ||
765 | return (CUPS_BACKEND_FAILED); | |
766 | } | |
767 | ||
768 | if (!connect(fd, &(addr->addr.addr), httpAddrLength(&(addr->addr)))) | |
769 | break; | |
770 | ||
771 | error = errno; | |
772 | close(fd); | |
ef416fc2 | 773 | |
774 | if (addr->next) | |
775 | continue; | |
776 | ||
777 | if (getenv("CLASS") != NULL) | |
778 | { | |
779 | /* | |
780 | * If the CLASS environment variable is set, the job was submitted | |
781 | * to a class and not to a specific queue. In this case, we want | |
782 | * to abort immediately so that the job can be requeued on the next | |
783 | * available printer in the class. | |
784 | */ | |
785 | ||
0837b7e8 MS |
786 | _cupsLangPrintFilter(stderr, "INFO", |
787 | _("Unable to contact printer, queuing on next " | |
788 | "printer in class.")); | |
ef416fc2 | 789 | |
ef416fc2 | 790 | /* |
791 | * Sleep 5 seconds to keep the job from requeuing too rapidly... | |
792 | */ | |
793 | ||
794 | sleep(5); | |
795 | ||
796 | return (CUPS_BACKEND_FAILED); | |
797 | } | |
798 | ||
c7017ecc MS |
799 | fprintf(stderr, "DEBUG: Connection error: %s\n", strerror(error)); |
800 | ||
ef416fc2 | 801 | if (error == ECONNREFUSED || error == EHOSTDOWN || |
802 | error == EHOSTUNREACH) | |
803 | { | |
fa73b229 | 804 | if (contimeout && (time(NULL) - start_time) > contimeout) |
805 | { | |
0837b7e8 MS |
806 | _cupsLangPrintFilter(stderr, "ERROR", |
807 | _("The printer is not responding.")); | |
fa73b229 | 808 | return (CUPS_BACKEND_FAILED); |
809 | } | |
810 | ||
c7017ecc MS |
811 | switch (error) |
812 | { | |
813 | case EHOSTDOWN : | |
0837b7e8 | 814 | _cupsLangPrintFilter(stderr, "WARNING", |
22c9029b MS |
815 | _("The printer may not exist or " |
816 | "is unavailable at this time.")); | |
c7017ecc MS |
817 | break; |
818 | ||
819 | case EHOSTUNREACH : | |
0837b7e8 | 820 | _cupsLangPrintFilter(stderr, "WARNING", |
22c9029b MS |
821 | _("The printer is unreachable at " |
822 | "this time.")); | |
c7017ecc MS |
823 | break; |
824 | ||
825 | case ECONNREFUSED : | |
826 | default : | |
0837b7e8 | 827 | _cupsLangPrintFilter(stderr, "WARNING", |
f3c17241 | 828 | _("The printer is in use.")); |
c7017ecc MS |
829 | break; |
830 | } | |
c0e1af83 | 831 | |
832 | sleep(delay); | |
833 | ||
834 | if (delay < 30) | |
835 | delay += 5; | |
ef416fc2 | 836 | } |
837 | else if (error == EADDRINUSE) | |
838 | { | |
839 | /* | |
840 | * Try on another port... | |
841 | */ | |
842 | ||
843 | sleep(1); | |
844 | } | |
845 | else | |
846 | { | |
0837b7e8 | 847 | _cupsLangPrintFilter(stderr, "ERROR", |
22c9029b | 848 | _("The printer is not responding.")); |
c0e1af83 | 849 | sleep(30); |
ef416fc2 | 850 | } |
851 | } | |
852 | ||
12f89d24 MS |
853 | /* |
854 | * Set the timeout... | |
855 | */ | |
856 | ||
857 | #ifdef WIN32 | |
858 | tv = (DWORD)(timeout * 1000); | |
859 | ||
860 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(tv)); | |
861 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv, sizeof(tv)); | |
862 | #else | |
863 | tv.tv_sec = timeout; | |
864 | tv.tv_usec = 0; | |
865 | ||
866 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)); | |
867 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv)); | |
868 | #endif /* WIN32 */ | |
869 | ||
757d2cad | 870 | fputs("STATE: -connecting-to-device\n", stderr); |
0837b7e8 | 871 | _cupsLangPrintFilter(stderr, "INFO", _("Connected to printer.")); |
26d47ec6 | 872 | |
22c9029b MS |
873 | fprintf(stderr, "DEBUG: Connected to %s:%d (local port %d)...\n", |
874 | httpAddrString(&(addr->addr), addrname, sizeof(addrname)), | |
875 | _httpAddrPort(&(addr->addr)), lport); | |
ef416fc2 | 876 | |
7a14d768 MS |
877 | /* |
878 | * See if the printer supports SNMP... | |
879 | */ | |
880 | ||
c8fef167 MS |
881 | if (snmp_fd >= 0) |
882 | have_supplies = !backendSNMPSupplies(snmp_fd, &(addrlist->addr), NULL, | |
883 | NULL); | |
426c6a59 MS |
884 | else |
885 | have_supplies = 0; | |
7a14d768 MS |
886 | |
887 | /* | |
888 | * Check for side-channel requests... | |
889 | */ | |
890 | ||
c8fef167 | 891 | backendCheckSideChannel(snmp_fd, &(addrlist->addr)); |
7a14d768 | 892 | |
ef416fc2 | 893 | /* |
894 | * Next, open the print file and figure out its size... | |
895 | */ | |
896 | ||
f42414bf | 897 | if (print_fd) |
ef416fc2 | 898 | { |
c0e1af83 | 899 | /* |
900 | * Use the size from the print file... | |
901 | */ | |
902 | ||
f42414bf | 903 | if (fstat(print_fd, &filestats)) |
904 | { | |
f42414bf | 905 | close(fd); |
ef416fc2 | 906 | |
c7017ecc | 907 | perror("DEBUG: unable to stat print file"); |
f42414bf | 908 | return (CUPS_BACKEND_FAILED); |
909 | } | |
ef416fc2 | 910 | |
f42414bf | 911 | filestats.st_size *= manual_copies; |
ef416fc2 | 912 | } |
f42414bf | 913 | else |
c0e1af83 | 914 | { |
915 | /* | |
916 | * Use a "very large value" for the size so that the printer will | |
917 | * keep printing until we close the connection... | |
918 | */ | |
919 | ||
f42414bf | 920 | #ifdef _LARGEFILE_SOURCE |
921 | filestats.st_size = (size_t)(999999999999.0); | |
922 | #else | |
923 | filestats.st_size = 2147483647; | |
924 | #endif /* _LARGEFILE_SOURCE */ | |
c0e1af83 | 925 | } |
ef416fc2 | 926 | |
927 | /* | |
928 | * Send a job header to the printer, specifying no banner page and | |
929 | * literal output... | |
930 | */ | |
931 | ||
12f89d24 | 932 | if (lpd_command(fd, "\002%s\n", |
ef416fc2 | 933 | printer)) /* Receive print job(s) */ |
934 | { | |
ef416fc2 | 935 | close(fd); |
936 | return (CUPS_BACKEND_FAILED); | |
937 | } | |
938 | ||
3e7fe0ca MS |
939 | if (orighost) |
940 | strlcpy(localhost, orighost, sizeof(localhost)); | |
941 | else | |
942 | httpGetHostname(NULL, localhost, sizeof(localhost)); | |
ef416fc2 | 943 | |
944 | snprintf(control, sizeof(control), | |
945 | "H%.31s\n" /* RFC 1179, Section 7.2 - host name <= 31 chars */ | |
946 | "P%.31s\n" /* RFC 1179, Section 7.2 - user name <= 31 chars */ | |
947 | "J%.99s\n", /* RFC 1179, Section 7.2 - job name <= 99 chars */ | |
948 | localhost, user, title); | |
949 | cptr = control + strlen(control); | |
950 | ||
951 | if (banner) | |
952 | { | |
953 | snprintf(cptr, sizeof(control) - (cptr - control), | |
954 | "C%.31s\n" /* RFC 1179, Section 7.2 - class name <= 31 chars */ | |
955 | "L%s\n", | |
956 | localhost, user); | |
957 | cptr += strlen(cptr); | |
958 | } | |
959 | ||
960 | while (copies > 0) | |
961 | { | |
962 | snprintf(cptr, sizeof(control) - (cptr - control), "%cdfA%03d%.15s\n", | |
963 | format, (int)getpid() % 1000, localhost); | |
964 | cptr += strlen(cptr); | |
965 | copies --; | |
966 | } | |
967 | ||
968 | snprintf(cptr, sizeof(control) - (cptr - control), | |
969 | "UdfA%03d%.15s\n" | |
970 | "N%.131s\n", /* RFC 1179, Section 7.2 - sourcefile name <= 131 chars */ | |
971 | (int)getpid() % 1000, localhost, title); | |
972 | ||
973 | fprintf(stderr, "DEBUG: Control file is:\n%s", control); | |
974 | ||
975 | if (order == ORDER_CONTROL_DATA) | |
976 | { | |
7a14d768 MS |
977 | /* |
978 | * Check for side-channel requests... | |
979 | */ | |
980 | ||
981 | backendCheckSideChannel(snmp_fd, &(addr->addr)); | |
982 | ||
983 | /* | |
984 | * Send the control file... | |
985 | */ | |
986 | ||
12f89d24 | 987 | if (lpd_command(fd, "\002%d cfA%03.3d%.15s\n", strlen(control), |
ef416fc2 | 988 | (int)getpid() % 1000, localhost)) |
989 | { | |
ef416fc2 | 990 | close(fd); |
991 | ||
992 | return (CUPS_BACKEND_FAILED); | |
993 | } | |
994 | ||
0837b7e8 MS |
995 | fprintf(stderr, "DEBUG: Sending control file (%u bytes)\n", |
996 | (unsigned)strlen(control)); | |
ef416fc2 | 997 | |
998 | if (lpd_write(fd, control, strlen(control) + 1) < (strlen(control) + 1)) | |
999 | { | |
1000 | status = errno; | |
c7017ecc MS |
1001 | perror("DEBUG: Unable to write control file"); |
1002 | ||
ef416fc2 | 1003 | } |
1004 | else | |
1005 | { | |
ef416fc2 | 1006 | if (read(fd, &status, 1) < 1) |
1007 | { | |
0837b7e8 | 1008 | _cupsLangPrintFilter(stderr, "WARNING", |
f3c17241 | 1009 | _("The printer did not respond.")); |
ef416fc2 | 1010 | status = errno; |
1011 | } | |
ef416fc2 | 1012 | } |
1013 | ||
1014 | if (status != 0) | |
0837b7e8 MS |
1015 | _cupsLangPrintFilter(stderr, "ERROR", |
1016 | _("Remote host did not accept control file (%d)."), | |
1017 | status); | |
ef416fc2 | 1018 | else |
0837b7e8 MS |
1019 | _cupsLangPrintFilter(stderr, "INFO", |
1020 | _("Control file sent successfully.")); | |
ef416fc2 | 1021 | } |
1022 | else | |
1023 | status = 0; | |
1024 | ||
1025 | if (status == 0) | |
1026 | { | |
7a14d768 MS |
1027 | /* |
1028 | * Check for side-channel requests... | |
1029 | */ | |
1030 | ||
1031 | backendCheckSideChannel(snmp_fd, &(addr->addr)); | |
1032 | ||
ef416fc2 | 1033 | /* |
1034 | * Send the print file... | |
1035 | */ | |
1036 | ||
12f89d24 | 1037 | if (lpd_command(fd, "\003" CUPS_LLFMT " dfA%03.3d%.15s\n", |
ef416fc2 | 1038 | CUPS_LLCAST filestats.st_size, (int)getpid() % 1000, |
1039 | localhost)) | |
1040 | { | |
ef416fc2 | 1041 | close(fd); |
1042 | ||
1043 | return (CUPS_BACKEND_FAILED); | |
1044 | } | |
1045 | ||
0837b7e8 MS |
1046 | fprintf(stderr, "DEBUG: Sending data file (" CUPS_LLFMT " bytes)\n", |
1047 | CUPS_LLCAST filestats.st_size); | |
ef416fc2 | 1048 | |
1049 | tbytes = 0; | |
1050 | for (copy = 0; copy < manual_copies; copy ++) | |
1051 | { | |
f42414bf | 1052 | lseek(print_fd, 0, SEEK_SET); |
ef416fc2 | 1053 | |
f42414bf | 1054 | while ((nbytes = read(print_fd, buffer, sizeof(buffer))) > 0) |
ef416fc2 | 1055 | { |
0837b7e8 MS |
1056 | _cupsLangPrintFilter(stderr, "INFO", |
1057 | _("Spooling job, %.0f%% complete."), | |
1058 | 100.0 * tbytes / filestats.st_size); | |
ef416fc2 | 1059 | |
1060 | if (lpd_write(fd, buffer, nbytes) < nbytes) | |
1061 | { | |
c7017ecc | 1062 | perror("DEBUG: Unable to send print file to printer"); |
ef416fc2 | 1063 | break; |
1064 | } | |
1065 | else | |
1066 | tbytes += nbytes; | |
1067 | } | |
1068 | } | |
1069 | ||
f42414bf | 1070 | if (mode == MODE_STANDARD) |
ef416fc2 | 1071 | { |
f42414bf | 1072 | if (tbytes < filestats.st_size) |
1073 | status = errno; | |
1074 | else if (lpd_write(fd, "", 1) < 1) | |
1075 | { | |
c7017ecc | 1076 | perror("DEBUG: Unable to send trailing nul to printer"); |
f42414bf | 1077 | status = errno; |
1078 | } | |
1079 | else | |
1080 | { | |
1081 | /* | |
1082 | * Read the status byte from the printer; if we can't read the byte | |
1083 | * back now, we should set status to "errno", however at this point | |
1084 | * we know the printer got the whole file and we don't necessarily | |
1085 | * want to requeue it over and over... | |
1086 | */ | |
ef416fc2 | 1087 | |
f42414bf | 1088 | if (recv(fd, &status, 1, 0) < 1) |
1089 | { | |
0837b7e8 | 1090 | _cupsLangPrintFilter(stderr, "WARNING", |
f3c17241 | 1091 | _("The printer did not respond.")); |
f42414bf | 1092 | status = 0; |
1093 | } | |
f42414bf | 1094 | } |
ef416fc2 | 1095 | } |
f42414bf | 1096 | else |
1097 | status = 0; | |
ef416fc2 | 1098 | |
1099 | if (status != 0) | |
0837b7e8 MS |
1100 | _cupsLangPrintFilter(stderr, "ERROR", |
1101 | _("Remote host did not accept data file (%d)."), | |
1102 | status); | |
ef416fc2 | 1103 | else |
0837b7e8 MS |
1104 | _cupsLangPrintFilter(stderr, "INFO", |
1105 | _("Data file sent successfully.")); | |
ef416fc2 | 1106 | } |
1107 | ||
1108 | if (status == 0 && order == ORDER_DATA_CONTROL) | |
1109 | { | |
7a14d768 MS |
1110 | /* |
1111 | * Check for side-channel requests... | |
1112 | */ | |
1113 | ||
1114 | backendCheckSideChannel(snmp_fd, &(addr->addr)); | |
1115 | ||
1116 | /* | |
1117 | * Send control file... | |
1118 | */ | |
1119 | ||
12f89d24 | 1120 | if (lpd_command(fd, "\002%d cfA%03.3d%.15s\n", strlen(control), |
ef416fc2 | 1121 | (int)getpid() % 1000, localhost)) |
1122 | { | |
ef416fc2 | 1123 | close(fd); |
1124 | ||
1125 | return (CUPS_BACKEND_FAILED); | |
1126 | } | |
1127 | ||
0837b7e8 MS |
1128 | fprintf(stderr, "DEBUG: Sending control file (%lu bytes)\n", |
1129 | (unsigned long)strlen(control)); | |
ef416fc2 | 1130 | |
1131 | if (lpd_write(fd, control, strlen(control) + 1) < (strlen(control) + 1)) | |
1132 | { | |
1133 | status = errno; | |
c7017ecc | 1134 | perror("DEBUG: Unable to write control file"); |
ef416fc2 | 1135 | } |
1136 | else | |
1137 | { | |
ef416fc2 | 1138 | if (read(fd, &status, 1) < 1) |
1139 | { | |
0837b7e8 | 1140 | _cupsLangPrintFilter(stderr, "WARNING", |
f3c17241 | 1141 | _("The printer did not respond.")); |
ef416fc2 | 1142 | status = errno; |
1143 | } | |
ef416fc2 | 1144 | } |
1145 | ||
1146 | if (status != 0) | |
0837b7e8 MS |
1147 | _cupsLangPrintFilter(stderr, "ERROR", |
1148 | _("Remote host did not accept control file (%d)."), | |
1149 | status); | |
ef416fc2 | 1150 | else |
0837b7e8 MS |
1151 | _cupsLangPrintFilter(stderr, "INFO", |
1152 | _("Control file sent successfully.")); | |
ef416fc2 | 1153 | } |
1154 | ||
7a14d768 | 1155 | /* |
52f6f666 | 1156 | * Collect the final supply levels as needed... |
7a14d768 MS |
1157 | */ |
1158 | ||
426c6a59 | 1159 | if (have_supplies) |
52f6f666 | 1160 | backendSNMPSupplies(snmp_fd, &(addr->addr), NULL, NULL); |
7a14d768 | 1161 | |
ef416fc2 | 1162 | /* |
1163 | * Close the socket connection and input file... | |
1164 | */ | |
1165 | ||
1166 | close(fd); | |
ef416fc2 | 1167 | |
1168 | if (status == 0) | |
ef416fc2 | 1169 | return (CUPS_BACKEND_OK); |
ef416fc2 | 1170 | |
1171 | /* | |
1172 | * Waiting for a retry... | |
1173 | */ | |
1174 | ||
1175 | sleep(30); | |
1176 | } | |
1177 | ||
ef416fc2 | 1178 | /* |
c8fef167 | 1179 | * If we get here, then the job has been canceled... |
ef416fc2 | 1180 | */ |
1181 | ||
1182 | return (CUPS_BACKEND_FAILED); | |
1183 | } | |
1184 | ||
1185 | ||
ef416fc2 | 1186 | /* |
1187 | * 'lpd_write()' - Write a buffer of data to an LPD server. | |
1188 | */ | |
1189 | ||
1190 | static int /* O - Number of bytes written or -1 on error */ | |
1191 | lpd_write(int lpd_fd, /* I - LPD socket */ | |
1192 | char *buffer, /* I - Buffer to write */ | |
1193 | int length) /* I - Number of bytes to write */ | |
1194 | { | |
1195 | int bytes, /* Number of bytes written */ | |
1196 | total; /* Total number of bytes written */ | |
1197 | ||
1198 | ||
1199 | if (abort_job) | |
1200 | return (-1); | |
1201 | ||
1202 | total = 0; | |
1203 | while ((bytes = send(lpd_fd, buffer, length - total, 0)) >= 0) | |
1204 | { | |
1205 | total += bytes; | |
1206 | buffer += bytes; | |
1207 | ||
1208 | if (total == length) | |
1209 | break; | |
1210 | } | |
1211 | ||
1212 | if (bytes < 0) | |
1213 | return (-1); | |
1214 | else | |
1215 | return (length); | |
1216 | } | |
1217 | ||
1218 | ||
1219 | #ifndef HAVE_RRESVPORT_AF | |
1220 | /* | |
1221 | * 'rresvport_af()' - A simple implementation of rresvport_af(). | |
1222 | */ | |
1223 | ||
1224 | static int /* O - Socket or -1 on error */ | |
1225 | rresvport_af(int *port, /* IO - Port number to bind to */ | |
1226 | int family) /* I - Address family */ | |
1227 | { | |
1228 | http_addr_t addr; /* Socket address */ | |
1229 | int fd; /* Socket file descriptor */ | |
1230 | ||
1231 | ||
1232 | /* | |
1233 | * Try to create an IPv4 socket... | |
1234 | */ | |
1235 | ||
1236 | if ((fd = socket(family, SOCK_STREAM, 0)) < 0) | |
1237 | return (-1); | |
1238 | ||
1239 | /* | |
1240 | * Initialize the address buffer... | |
1241 | */ | |
1242 | ||
1243 | memset(&addr, 0, sizeof(addr)); | |
1244 | addr.addr.sa_family = family; | |
1245 | ||
1246 | /* | |
1247 | * Try to bind the socket to a reserved port... | |
1248 | */ | |
1249 | ||
1250 | while (*port > 511) | |
1251 | { | |
1252 | /* | |
1253 | * Set the port number... | |
1254 | */ | |
1255 | ||
22c9029b | 1256 | _httpAddrSetPort(&addr, *port); |
ef416fc2 | 1257 | |
1258 | /* | |
1259 | * Try binding the port to the socket; return if all is OK... | |
1260 | */ | |
1261 | ||
1262 | if (!bind(fd, (struct sockaddr *)&addr, sizeof(addr))) | |
1263 | return (fd); | |
1264 | ||
1265 | /* | |
1266 | * Stop if we have any error other than "address already in use"... | |
1267 | */ | |
1268 | ||
1269 | if (errno != EADDRINUSE) | |
1270 | { | |
1271 | # ifdef WIN32 | |
1272 | closesocket(fd); | |
1273 | # else | |
1274 | close(fd); | |
1275 | # endif /* WIN32 */ | |
1276 | ||
1277 | return (-1); | |
1278 | } | |
1279 | ||
1280 | /* | |
1281 | * Try the next port... | |
1282 | */ | |
1283 | ||
1284 | (*port)--; | |
1285 | } | |
1286 | ||
1287 | /* | |
1288 | * Wasn't able to bind to a reserved port, so close the socket and return | |
1289 | * -1... | |
1290 | */ | |
1291 | ||
1292 | # ifdef WIN32 | |
1293 | closesocket(fd); | |
1294 | # else | |
1295 | close(fd); | |
1296 | # endif /* WIN32 */ | |
1297 | ||
1298 | return (-1); | |
1299 | } | |
1300 | #endif /* !HAVE_RRESVPORT_AF */ | |
1301 | ||
1302 | ||
1303 | /* | |
1304 | * 'sigterm_handler()' - Handle 'terminate' signals that stop the backend. | |
1305 | */ | |
1306 | ||
1307 | static void | |
1308 | sigterm_handler(int sig) /* I - Signal */ | |
1309 | { | |
1310 | (void)sig; /* remove compiler warnings... */ | |
1311 | ||
1312 | abort_job = 1; | |
1313 | } | |
1314 | ||
1315 | ||
1316 | /* | |
b19ccc9e | 1317 | * End of "$Id: lpd.c 7740 2008-07-14 23:58:05Z mike $". |
ef416fc2 | 1318 | */ |