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ef416fc2 | 1 | /* |
215ef638 | 2 | * "$Id: lpd.c 12005 2014-07-08 15:46:59Z msweet $" |
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 */ | |
5a9febac | 129 | int snmp_enabled = 1; /* Is SNMP enabled? */ |
c8fef167 | 130 | int snmp_fd; /* SNMP socket */ |
7a14d768 MS |
131 | int fd; /* Print file */ |
132 | int status; /* Status of LPD job */ | |
133 | int mode; /* Print mode */ | |
134 | int banner; /* Print banner page? */ | |
135 | int format; /* Print format */ | |
136 | int order; /* Order of control/data files */ | |
137 | int reserve; /* Reserve priviledged port? */ | |
138 | int sanitize_title; /* Sanitize title string? */ | |
139 | int manual_copies, /* Do manual copies? */ | |
140 | timeout, /* Timeout */ | |
141 | contimeout, /* Connection timeout */ | |
142 | copies; /* Number of copies */ | |
eac3a0a0 MS |
143 | ssize_t bytes = 0; /* Initial bytes read */ |
144 | char buffer[16384]; /* Initial print buffer */ | |
ef416fc2 | 145 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
7a14d768 | 146 | struct sigaction action; /* Actions for POSIX signals */ |
ef416fc2 | 147 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ |
3e7fe0ca MS |
148 | int num_jobopts; /* Number of job options */ |
149 | cups_option_t *jobopts = NULL; /* Job options */ | |
ef416fc2 | 150 | |
151 | ||
152 | /* | |
153 | * Make sure status messages are not buffered... | |
154 | */ | |
155 | ||
156 | setbuf(stderr, NULL); | |
157 | ||
158 | /* | |
159 | * Ignore SIGPIPE and catch SIGTERM signals... | |
160 | */ | |
161 | ||
162 | #ifdef HAVE_SIGSET | |
163 | sigset(SIGPIPE, SIG_IGN); | |
164 | sigset(SIGTERM, sigterm_handler); | |
165 | #elif defined(HAVE_SIGACTION) | |
166 | memset(&action, 0, sizeof(action)); | |
167 | action.sa_handler = SIG_IGN; | |
168 | sigaction(SIGPIPE, &action, NULL); | |
169 | ||
170 | sigemptyset(&action.sa_mask); | |
171 | sigaddset(&action.sa_mask, SIGTERM); | |
172 | action.sa_handler = sigterm_handler; | |
173 | sigaction(SIGTERM, &action, NULL); | |
174 | #else | |
175 | signal(SIGPIPE, SIG_IGN); | |
176 | signal(SIGTERM, sigterm_handler); | |
177 | #endif /* HAVE_SIGSET */ | |
178 | ||
179 | /* | |
180 | * Check command-line... | |
181 | */ | |
182 | ||
183 | if (argc == 1) | |
184 | { | |
8b450588 MS |
185 | printf("network lpd \"Unknown\" \"%s\"\n", |
186 | _cupsLangString(cupsLangDefault(), _("LPD/LPR Host or Printer"))); | |
ef416fc2 | 187 | return (CUPS_BACKEND_OK); |
188 | } | |
189 | else if (argc < 6 || argc > 7) | |
190 | { | |
db1f069b | 191 | _cupsLangPrintf(stderr, |
0837b7e8 | 192 | _("Usage: %s job-id user title copies options [file]"), |
db1f069b | 193 | argv[0]); |
ef416fc2 | 194 | return (CUPS_BACKEND_FAILED); |
195 | } | |
196 | ||
3e7fe0ca MS |
197 | num_jobopts = cupsParseOptions(argv[5], 0, &jobopts); |
198 | ||
ef416fc2 | 199 | /* |
200 | * Extract the hostname and printer name from the URI... | |
201 | */ | |
202 | ||
0268488e MS |
203 | while ((device_uri = cupsBackendDeviceURI(argv)) == NULL) |
204 | { | |
205 | _cupsLangPrintFilter(stderr, "INFO", _("Unable to locate printer.")); | |
206 | sleep(10); | |
207 | ||
208 | if (getenv("CLASS") != NULL) | |
209 | return (CUPS_BACKEND_FAILED); | |
210 | } | |
1f0275e3 | 211 | |
acb056cb MS |
212 | httpSeparateURI(HTTP_URI_CODING_ALL, device_uri, scheme, sizeof(scheme), |
213 | username, sizeof(username), hostname, sizeof(hostname), &port, | |
ef416fc2 | 214 | resource, sizeof(resource)); |
215 | ||
a41f09e2 MS |
216 | if (!port) |
217 | port = 515; /* Default to port 515 */ | |
218 | ||
ef416fc2 | 219 | if (!username[0]) |
220 | { | |
221 | /* | |
222 | * If no username is in the device URI, then use the print job user... | |
223 | */ | |
224 | ||
225 | strlcpy(username, argv[2], sizeof(username)); | |
226 | } | |
227 | ||
228 | /* | |
229 | * See if there are any options... | |
230 | */ | |
231 | ||
f42414bf | 232 | mode = MODE_STANDARD; |
fa73b229 | 233 | banner = 0; |
234 | format = 'l'; | |
235 | order = ORDER_CONTROL_DATA; | |
236 | reserve = RESERVE_ANY; | |
237 | manual_copies = 1; | |
238 | timeout = 300; | |
239 | contimeout = 7 * 24 * 60 * 60; | |
ef416fc2 | 240 | |
fa73b229 | 241 | #ifdef __APPLE__ |
c0e1af83 | 242 | /* |
0268488e | 243 | * We want to pass UTF-8 characters by default, not re-map them (3071945) |
c0e1af83 | 244 | */ |
245 | ||
fa73b229 | 246 | sanitize_title = 0; |
0268488e | 247 | #else |
c0e1af83 | 248 | /* |
0268488e | 249 | * Otherwise we want to re-map UTF-8 to "safe" characters by default... |
c0e1af83 | 250 | */ |
251 | ||
fa73b229 | 252 | sanitize_title = 1; |
253 | #endif /* __APPLE__ */ | |
ef416fc2 | 254 | |
255 | if ((options = strchr(resource, '?')) != NULL) | |
256 | { | |
257 | /* | |
258 | * Yup, terminate the device name string and move to the first | |
259 | * character of the options... | |
260 | */ | |
261 | ||
262 | *options++ = '\0'; | |
263 | ||
264 | /* | |
265 | * Parse options... | |
266 | */ | |
267 | ||
268 | while (*options) | |
269 | { | |
270 | /* | |
271 | * Get the name... | |
272 | */ | |
273 | ||
db1f069b | 274 | name = options; |
ef416fc2 | 275 | |
db1f069b MS |
276 | while (*options && *options != '=' && *options != '+' && *options != '&') |
277 | options ++; | |
278 | ||
279 | if ((sep = *options) != '\0') | |
280 | *options++ = '\0'; | |
281 | ||
282 | if (sep == '=') | |
ef416fc2 | 283 | { |
284 | /* | |
285 | * Get the value... | |
286 | */ | |
287 | ||
db1f069b | 288 | value = options; |
ef416fc2 | 289 | |
db1f069b | 290 | while (*options && *options != '+' && *options != '&') |
ef416fc2 | 291 | options ++; |
db1f069b MS |
292 | |
293 | if (*options) | |
294 | *options++ = '\0'; | |
ef416fc2 | 295 | } |
296 | else | |
db1f069b | 297 | value = (char *)""; |
ef416fc2 | 298 | |
299 | /* | |
300 | * Process the option... | |
301 | */ | |
302 | ||
88f9aafc | 303 | if (!_cups_strcasecmp(name, "banner")) |
ef416fc2 | 304 | { |
305 | /* | |
306 | * Set the banner... | |
307 | */ | |
308 | ||
88f9aafc MS |
309 | banner = !value[0] || !_cups_strcasecmp(value, "on") || |
310 | !_cups_strcasecmp(value, "yes") || !_cups_strcasecmp(value, "true"); | |
ef416fc2 | 311 | } |
88f9aafc | 312 | else if (!_cups_strcasecmp(name, "format") && value[0]) |
ef416fc2 | 313 | { |
314 | /* | |
315 | * Set output format... | |
316 | */ | |
317 | ||
fa73b229 | 318 | if (strchr("cdfglnoprtv", value[0])) |
ef416fc2 | 319 | format = value[0]; |
320 | else | |
0837b7e8 MS |
321 | _cupsLangPrintFilter(stderr, "ERROR", |
322 | _("Unknown format character: \"%c\"."), | |
323 | value[0]); | |
ef416fc2 | 324 | } |
88f9aafc | 325 | else if (!_cups_strcasecmp(name, "mode") && value[0]) |
f42414bf | 326 | { |
327 | /* | |
328 | * Set control/data order... | |
329 | */ | |
330 | ||
88f9aafc | 331 | if (!_cups_strcasecmp(value, "standard")) |
bc44d920 | 332 | mode = MODE_STANDARD; |
88f9aafc | 333 | else if (!_cups_strcasecmp(value, "stream")) |
bc44d920 | 334 | mode = MODE_STREAM; |
f42414bf | 335 | else |
0837b7e8 MS |
336 | _cupsLangPrintFilter(stderr, "ERROR", |
337 | _("Unknown print mode: \"%s\"."), value); | |
f42414bf | 338 | } |
88f9aafc | 339 | else if (!_cups_strcasecmp(name, "order") && value[0]) |
ef416fc2 | 340 | { |
341 | /* | |
342 | * Set control/data order... | |
343 | */ | |
344 | ||
88f9aafc | 345 | if (!_cups_strcasecmp(value, "control,data")) |
ef416fc2 | 346 | order = ORDER_CONTROL_DATA; |
88f9aafc | 347 | else if (!_cups_strcasecmp(value, "data,control")) |
ef416fc2 | 348 | order = ORDER_DATA_CONTROL; |
349 | else | |
0837b7e8 MS |
350 | _cupsLangPrintFilter(stderr, "ERROR", |
351 | _("Unknown file order: \"%s\"."), value); | |
ef416fc2 | 352 | } |
88f9aafc | 353 | else if (!_cups_strcasecmp(name, "reserve")) |
ef416fc2 | 354 | { |
355 | /* | |
356 | * Set port reservation mode... | |
357 | */ | |
358 | ||
88f9aafc | 359 | if (!value[0] || !_cups_strcasecmp(value, "on") || |
5a9febac MS |
360 | !_cups_strcasecmp(value, "yes") || |
361 | !_cups_strcasecmp(value, "true") || | |
88f9aafc | 362 | !_cups_strcasecmp(value, "rfc1179")) |
ef416fc2 | 363 | reserve = RESERVE_RFC1179; |
88f9aafc | 364 | else if (!_cups_strcasecmp(value, "any")) |
ef416fc2 | 365 | reserve = RESERVE_ANY; |
366 | else | |
367 | reserve = RESERVE_NONE; | |
368 | } | |
88f9aafc | 369 | else if (!_cups_strcasecmp(name, "manual_copies")) |
ef416fc2 | 370 | { |
371 | /* | |
372 | * Set manual copies... | |
373 | */ | |
374 | ||
88f9aafc | 375 | manual_copies = !value[0] || !_cups_strcasecmp(value, "on") || |
5a9febac MS |
376 | !_cups_strcasecmp(value, "yes") || |
377 | !_cups_strcasecmp(value, "true"); | |
ef416fc2 | 378 | } |
88f9aafc | 379 | else if (!_cups_strcasecmp(name, "sanitize_title")) |
ef416fc2 | 380 | { |
381 | /* | |
382 | * Set sanitize title... | |
383 | */ | |
384 | ||
88f9aafc | 385 | sanitize_title = !value[0] || !_cups_strcasecmp(value, "on") || |
5a9febac MS |
386 | !_cups_strcasecmp(value, "yes") || |
387 | !_cups_strcasecmp(value, "true"); | |
388 | } | |
389 | else if (!_cups_strcasecmp(name, "snmp")) | |
390 | { | |
391 | /* | |
392 | * Enable/disable SNMP stuff... | |
393 | */ | |
394 | ||
395 | snmp_enabled = !value[0] || !_cups_strcasecmp(value, "on") || | |
215ef638 MS |
396 | !_cups_strcasecmp(value, "yes") || |
397 | !_cups_strcasecmp(value, "true"); | |
ef416fc2 | 398 | } |
88f9aafc | 399 | else if (!_cups_strcasecmp(name, "timeout")) |
ef416fc2 | 400 | { |
401 | /* | |
402 | * Set the timeout... | |
403 | */ | |
404 | ||
405 | if (atoi(value) > 0) | |
406 | timeout = atoi(value); | |
407 | } | |
88f9aafc | 408 | else if (!_cups_strcasecmp(name, "contimeout")) |
fa73b229 | 409 | { |
410 | /* | |
c0e1af83 | 411 | * Set the connection timeout... |
fa73b229 | 412 | */ |
413 | ||
414 | if (atoi(value) > 0) | |
415 | contimeout = atoi(value); | |
416 | } | |
ef416fc2 | 417 | } |
418 | } | |
419 | ||
f42414bf | 420 | if (mode == MODE_STREAM) |
421 | order = ORDER_CONTROL_DATA; | |
422 | ||
c8fef167 MS |
423 | /* |
424 | * Find the printer... | |
425 | */ | |
426 | ||
427 | snprintf(portname, sizeof(portname), "%d", port); | |
428 | ||
429 | fputs("STATE: +connecting-to-device\n", stderr); | |
430 | fprintf(stderr, "DEBUG: Looking up \"%s\"...\n", hostname); | |
431 | ||
432 | while ((addrlist = httpAddrGetList(hostname, AF_UNSPEC, portname)) == NULL) | |
433 | { | |
434 | _cupsLangPrintFilter(stderr, "INFO", | |
435 | _("Unable to locate printer \"%s\"."), hostname); | |
436 | sleep(10); | |
437 | ||
438 | if (getenv("CLASS") != NULL) | |
439 | { | |
440 | fputs("STATE: -connecting-to-device\n", stderr); | |
441 | exit(CUPS_BACKEND_FAILED); | |
442 | } | |
443 | } | |
444 | ||
5a9febac MS |
445 | if (snmp_enabled) |
446 | snmp_fd = _cupsSNMPOpen(addrlist->addr.addr.sa_family); | |
447 | else | |
448 | snmp_fd = -1; | |
c8fef167 MS |
449 | |
450 | /* | |
451 | * Wait for data from the filter... | |
452 | */ | |
453 | ||
454 | if (argc == 6) | |
eac3a0a0 | 455 | { |
f14324a7 | 456 | if (!backendWaitLoop(snmp_fd, &(addrlist->addr), 0, backendNetworkSideCB)) |
c8fef167 | 457 | return (CUPS_BACKEND_OK); |
eac3a0a0 MS |
458 | else if (mode == MODE_STANDARD && |
459 | (bytes = read(0, buffer, sizeof(buffer))) <= 0) | |
460 | return (CUPS_BACKEND_OK); | |
461 | } | |
c8fef167 | 462 | |
f42414bf | 463 | /* |
464 | * If we have 7 arguments, print the file named on the command-line. | |
465 | * Otherwise, copy stdin to a temporary file and print the temporary | |
466 | * file. | |
467 | */ | |
468 | ||
469 | if (argc == 6 && mode == MODE_STANDARD) | |
470 | { | |
471 | /* | |
472 | * Copy stdin to a temporary file... | |
473 | */ | |
474 | ||
f42414bf | 475 | if ((fd = cupsTempFd(tmpfilename, sizeof(tmpfilename))) < 0) |
476 | { | |
c7017ecc | 477 | perror("DEBUG: Unable to create temporary file"); |
f42414bf | 478 | return (CUPS_BACKEND_FAILED); |
479 | } | |
480 | ||
0837b7e8 | 481 | _cupsLangPrintFilter(stderr, "INFO", _("Copying print data.")); |
8b116e60 | 482 | |
eac3a0a0 MS |
483 | if (bytes > 0) |
484 | write(fd, buffer, bytes); | |
485 | ||
486 | backendRunLoop(-1, fd, snmp_fd, &(addrlist->addr), 0, 0, | |
ef55b745 | 487 | backendNetworkSideCB); |
f42414bf | 488 | } |
489 | else if (argc == 6) | |
490 | { | |
491 | /* | |
492 | * Stream from stdin... | |
493 | */ | |
494 | ||
495 | filename = NULL; | |
496 | fd = 0; | |
497 | } | |
498 | else | |
499 | { | |
500 | filename = argv[6]; | |
501 | fd = open(filename, O_RDONLY); | |
502 | ||
503 | if (fd == -1) | |
504 | { | |
0837b7e8 | 505 | _cupsLangPrintError("ERROR", _("Unable to open print file")); |
f42414bf | 506 | return (CUPS_BACKEND_FAILED); |
507 | } | |
508 | } | |
509 | ||
ef416fc2 | 510 | /* |
511 | * Sanitize the document title... | |
512 | */ | |
513 | ||
514 | strlcpy(title, argv[3], sizeof(title)); | |
515 | ||
516 | if (sanitize_title) | |
517 | { | |
518 | /* | |
519 | * Sanitize the title string so that we don't cause problems on | |
520 | * the remote end... | |
521 | */ | |
522 | ||
db1f069b MS |
523 | char *ptr; |
524 | ||
ef416fc2 | 525 | for (ptr = title; *ptr; ptr ++) |
526 | if (!isalnum(*ptr & 255) && !isspace(*ptr & 255)) | |
527 | *ptr = '_'; | |
528 | } | |
529 | ||
530 | /* | |
531 | * Queue the job... | |
532 | */ | |
533 | ||
534 | if (argc > 6) | |
535 | { | |
536 | if (manual_copies) | |
537 | { | |
538 | manual_copies = atoi(argv[4]); | |
539 | copies = 1; | |
540 | } | |
541 | else | |
542 | { | |
543 | manual_copies = 1; | |
544 | copies = atoi(argv[4]); | |
545 | } | |
546 | ||
c8fef167 MS |
547 | status = lpd_queue(hostname, addrlist, resource + 1, fd, snmp_fd, mode, |
548 | username, title, copies, banner, format, order, reserve, | |
3e7fe0ca MS |
549 | manual_copies, timeout, contimeout, |
550 | cupsGetOption("job-originating-host-name", num_jobopts, | |
551 | jobopts)); | |
ef416fc2 | 552 | |
553 | if (!status) | |
554 | fprintf(stderr, "PAGE: 1 %d\n", atoi(argv[4])); | |
555 | } | |
556 | else | |
c8fef167 MS |
557 | status = lpd_queue(hostname, addrlist, resource + 1, fd, snmp_fd, mode, |
558 | username, title, 1, banner, format, order, reserve, 1, | |
3e7fe0ca MS |
559 | timeout, contimeout, |
560 | cupsGetOption("job-originating-host-name", num_jobopts, | |
561 | jobopts)); | |
ef416fc2 | 562 | |
563 | /* | |
564 | * Remove the temporary file if necessary... | |
565 | */ | |
566 | ||
567 | if (tmpfilename[0]) | |
568 | unlink(tmpfilename); | |
569 | ||
f42414bf | 570 | if (fd) |
571 | close(fd); | |
572 | ||
c8fef167 MS |
573 | if (snmp_fd >= 0) |
574 | _cupsSNMPClose(snmp_fd); | |
575 | ||
ef416fc2 | 576 | /* |
577 | * Return the queue status... | |
578 | */ | |
579 | ||
580 | return (status); | |
581 | } | |
582 | ||
583 | ||
584 | /* | |
585 | * 'lpd_command()' - Send an LPR command sequence and wait for a reply. | |
586 | */ | |
587 | ||
588 | static int /* O - Status of command */ | |
589 | lpd_command(int fd, /* I - Socket connection to LPD host */ | |
ef416fc2 | 590 | char *format, /* I - printf()-style format string */ |
591 | ...) /* I - Additional args as necessary */ | |
592 | { | |
593 | va_list ap; /* Argument pointer */ | |
594 | char buf[1024]; /* Output buffer */ | |
595 | int bytes; /* Number of bytes to output */ | |
596 | char status; /* Status from command */ | |
597 | ||
598 | ||
599 | /* | |
c8fef167 | 600 | * Don't try to send commands if the job has been canceled... |
ef416fc2 | 601 | */ |
602 | ||
603 | if (abort_job) | |
604 | return (-1); | |
605 | ||
606 | /* | |
607 | * Format the string... | |
608 | */ | |
609 | ||
610 | va_start(ap, format); | |
611 | bytes = vsnprintf(buf, sizeof(buf), format, ap); | |
612 | va_end(ap); | |
613 | ||
614 | fprintf(stderr, "DEBUG: lpd_command %2.2x %s", buf[0], buf + 1); | |
615 | ||
616 | /* | |
617 | * Send the command... | |
618 | */ | |
619 | ||
620 | fprintf(stderr, "DEBUG: Sending command string (%d bytes)...\n", bytes); | |
621 | ||
622 | if (lpd_write(fd, buf, bytes) < bytes) | |
623 | { | |
c7017ecc | 624 | perror("DEBUG: Unable to send LPD command"); |
ef416fc2 | 625 | return (-1); |
626 | } | |
627 | ||
628 | /* | |
629 | * Read back the status from the command and return it... | |
630 | */ | |
631 | ||
c0e1af83 | 632 | fputs("DEBUG: Reading command status...\n", stderr); |
ef416fc2 | 633 | |
ef416fc2 | 634 | if (recv(fd, &status, 1, 0) < 1) |
635 | { | |
f3c17241 | 636 | _cupsLangPrintFilter(stderr, "WARNING", _("The printer did not respond.")); |
ef416fc2 | 637 | status = errno; |
638 | } | |
639 | ||
ef416fc2 | 640 | fprintf(stderr, "DEBUG: lpd_command returning %d\n", status); |
641 | ||
642 | return (status); | |
643 | } | |
644 | ||
645 | ||
646 | /* | |
647 | * 'lpd_queue()' - Queue a file using the Line Printer Daemon protocol. | |
648 | */ | |
649 | ||
650 | static int /* O - Zero on success, non-zero on failure */ | |
c8fef167 MS |
651 | lpd_queue(const char *hostname, /* I - Host to connect to */ |
652 | http_addrlist_t *addrlist, /* I - List of host addresses */ | |
653 | const char *printer, /* I - Printer/queue name */ | |
654 | int print_fd, /* I - File to print */ | |
655 | int snmp_fd, /* I - SNMP socket */ | |
656 | int mode, /* I - Print mode */ | |
657 | const char *user, /* I - Requesting user */ | |
658 | const char *title, /* I - Job title */ | |
659 | int copies, /* I - Number of copies */ | |
660 | int banner, /* I - Print LPD banner? */ | |
661 | int format, /* I - Format specifier */ | |
662 | int order, /* I - Order of data/control files */ | |
663 | int reserve, /* I - Reserve ports? */ | |
664 | int manual_copies,/* I - Do copies by hand... */ | |
665 | int timeout, /* I - Timeout... */ | |
3e7fe0ca MS |
666 | int contimeout, /* I - Connection timeout */ |
667 | const char *orighost) /* I - job-originating-host-name */ | |
ef416fc2 | 668 | { |
ef416fc2 | 669 | char localhost[255]; /* Local host name */ |
670 | int error; /* Error number */ | |
671 | struct stat filestats; /* File statistics */ | |
672 | int lport; /* LPD connection local port */ | |
673 | int fd; /* LPD socket */ | |
674 | char control[10240], /* LPD control 'file' */ | |
675 | *cptr; /* Pointer into control file string */ | |
676 | char status; /* Status byte from command */ | |
c0e1af83 | 677 | int delay; /* Delay for retries... */ |
26d47ec6 | 678 | char addrname[256]; /* Address name */ |
c8fef167 MS |
679 | http_addrlist_t *addr; /* Socket address */ |
680 | int have_supplies; /* Printer supports supply levels? */ | |
ef416fc2 | 681 | int copy; /* Copies written */ |
fa73b229 | 682 | time_t start_time; /* Time of first connect */ |
ef416fc2 | 683 | size_t nbytes; /* Number of bytes written */ |
684 | off_t tbytes; /* Total bytes written */ | |
a74454a7 | 685 | char buffer[32768]; /* Output buffer */ |
12f89d24 MS |
686 | #ifdef WIN32 |
687 | DWORD tv; /* Timeout in milliseconds */ | |
ef416fc2 | 688 | #else |
12f89d24 MS |
689 | struct timeval tv; /* Timeout in secs and usecs */ |
690 | #endif /* WIN32 */ | |
691 | ||
ef416fc2 | 692 | |
fa73b229 | 693 | /* |
c0e1af83 | 694 | * Remember when we started trying to connect to the printer... |
fa73b229 | 695 | */ |
696 | ||
4d301e69 | 697 | start_time = time(NULL); |
fa73b229 | 698 | |
ef416fc2 | 699 | /* |
700 | * Loop forever trying to print the file... | |
701 | */ | |
702 | ||
703 | while (!abort_job) | |
704 | { | |
705 | /* | |
706 | * First try to reserve a port for this connection... | |
707 | */ | |
708 | ||
acb056cb | 709 | fprintf(stderr, "DEBUG: Connecting to %s:%d for printer %s\n", hostname, |
a469f8a5 | 710 | httpAddrPort(&(addrlist->addr)), printer); |
0837b7e8 | 711 | _cupsLangPrintFilter(stderr, "INFO", _("Connecting to printer.")); |
ef416fc2 | 712 | |
c0e1af83 | 713 | for (lport = reserve == RESERVE_RFC1179 ? 732 : 1024, addr = addrlist, |
714 | delay = 5;; | |
ef416fc2 | 715 | addr = addr->next) |
716 | { | |
717 | /* | |
c8fef167 | 718 | * Stop if this job has been canceled... |
ef416fc2 | 719 | */ |
720 | ||
721 | if (abort_job) | |
ef416fc2 | 722 | return (CUPS_BACKEND_FAILED); |
ef416fc2 | 723 | |
724 | /* | |
725 | * Choose the next priviledged port... | |
726 | */ | |
727 | ||
728 | if (!addr) | |
729 | addr = addrlist; | |
730 | ||
731 | lport --; | |
732 | ||
733 | if (lport < 721 && reserve == RESERVE_RFC1179) | |
734 | lport = 731; | |
735 | else if (lport < 1) | |
736 | lport = 1023; | |
737 | ||
738 | #ifdef HAVE_GETEUID | |
739 | if (geteuid() || !reserve) | |
740 | #else | |
741 | if (getuid() || !reserve) | |
742 | #endif /* HAVE_GETEUID */ | |
743 | { | |
744 | /* | |
745 | * Just create a regular socket... | |
746 | */ | |
747 | ||
748 | if ((fd = socket(addr->addr.addr.sa_family, SOCK_STREAM, 0)) < 0) | |
749 | { | |
c7017ecc | 750 | perror("DEBUG: Unable to create socket"); |
ef416fc2 | 751 | sleep(1); |
752 | ||
753 | continue; | |
754 | } | |
755 | ||
756 | lport = 0; | |
757 | } | |
758 | else | |
759 | { | |
760 | /* | |
761 | * We're running as root and want to comply with RFC 1179. Reserve a | |
762 | * priviledged lport between 721 and 731... | |
763 | */ | |
764 | ||
765 | if ((fd = rresvport_af(&lport, addr->addr.addr.sa_family)) < 0) | |
766 | { | |
c7017ecc | 767 | perror("DEBUG: Unable to reserve port"); |
ef416fc2 | 768 | sleep(1); |
769 | ||
770 | continue; | |
771 | } | |
772 | } | |
773 | ||
774 | /* | |
775 | * Connect to the printer or server... | |
776 | */ | |
777 | ||
778 | if (abort_job) | |
779 | { | |
ef416fc2 | 780 | close(fd); |
781 | ||
782 | return (CUPS_BACKEND_FAILED); | |
783 | } | |
784 | ||
785 | if (!connect(fd, &(addr->addr.addr), httpAddrLength(&(addr->addr)))) | |
786 | break; | |
787 | ||
788 | error = errno; | |
789 | close(fd); | |
ef416fc2 | 790 | |
791 | if (addr->next) | |
792 | continue; | |
793 | ||
794 | if (getenv("CLASS") != NULL) | |
795 | { | |
796 | /* | |
797 | * If the CLASS environment variable is set, the job was submitted | |
798 | * to a class and not to a specific queue. In this case, we want | |
799 | * to abort immediately so that the job can be requeued on the next | |
800 | * available printer in the class. | |
801 | */ | |
802 | ||
0837b7e8 MS |
803 | _cupsLangPrintFilter(stderr, "INFO", |
804 | _("Unable to contact printer, queuing on next " | |
805 | "printer in class.")); | |
ef416fc2 | 806 | |
ef416fc2 | 807 | /* |
808 | * Sleep 5 seconds to keep the job from requeuing too rapidly... | |
809 | */ | |
810 | ||
811 | sleep(5); | |
812 | ||
813 | return (CUPS_BACKEND_FAILED); | |
814 | } | |
815 | ||
c7017ecc MS |
816 | fprintf(stderr, "DEBUG: Connection error: %s\n", strerror(error)); |
817 | ||
ef416fc2 | 818 | if (error == ECONNREFUSED || error == EHOSTDOWN || |
819 | error == EHOSTUNREACH) | |
820 | { | |
fa73b229 | 821 | if (contimeout && (time(NULL) - start_time) > contimeout) |
822 | { | |
0837b7e8 MS |
823 | _cupsLangPrintFilter(stderr, "ERROR", |
824 | _("The printer is not responding.")); | |
fa73b229 | 825 | return (CUPS_BACKEND_FAILED); |
826 | } | |
827 | ||
c7017ecc MS |
828 | switch (error) |
829 | { | |
830 | case EHOSTDOWN : | |
0837b7e8 | 831 | _cupsLangPrintFilter(stderr, "WARNING", |
22c9029b MS |
832 | _("The printer may not exist or " |
833 | "is unavailable at this time.")); | |
c7017ecc MS |
834 | break; |
835 | ||
836 | case EHOSTUNREACH : | |
0837b7e8 | 837 | _cupsLangPrintFilter(stderr, "WARNING", |
22c9029b MS |
838 | _("The printer is unreachable at " |
839 | "this time.")); | |
c7017ecc MS |
840 | break; |
841 | ||
842 | case ECONNREFUSED : | |
843 | default : | |
0837b7e8 | 844 | _cupsLangPrintFilter(stderr, "WARNING", |
f3c17241 | 845 | _("The printer is in use.")); |
c7017ecc MS |
846 | break; |
847 | } | |
c0e1af83 | 848 | |
849 | sleep(delay); | |
850 | ||
851 | if (delay < 30) | |
852 | delay += 5; | |
ef416fc2 | 853 | } |
854 | else if (error == EADDRINUSE) | |
855 | { | |
856 | /* | |
857 | * Try on another port... | |
858 | */ | |
859 | ||
860 | sleep(1); | |
861 | } | |
862 | else | |
863 | { | |
0837b7e8 | 864 | _cupsLangPrintFilter(stderr, "ERROR", |
22c9029b | 865 | _("The printer is not responding.")); |
c0e1af83 | 866 | sleep(30); |
ef416fc2 | 867 | } |
868 | } | |
869 | ||
12f89d24 MS |
870 | /* |
871 | * Set the timeout... | |
872 | */ | |
873 | ||
874 | #ifdef WIN32 | |
875 | tv = (DWORD)(timeout * 1000); | |
876 | ||
877 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(tv)); | |
878 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv, sizeof(tv)); | |
879 | #else | |
880 | tv.tv_sec = timeout; | |
881 | tv.tv_usec = 0; | |
882 | ||
883 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)); | |
884 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv)); | |
885 | #endif /* WIN32 */ | |
886 | ||
757d2cad | 887 | fputs("STATE: -connecting-to-device\n", stderr); |
0837b7e8 | 888 | _cupsLangPrintFilter(stderr, "INFO", _("Connected to printer.")); |
26d47ec6 | 889 | |
22c9029b MS |
890 | fprintf(stderr, "DEBUG: Connected to %s:%d (local port %d)...\n", |
891 | httpAddrString(&(addr->addr), addrname, sizeof(addrname)), | |
a469f8a5 | 892 | httpAddrPort(&(addr->addr)), lport); |
ef416fc2 | 893 | |
7a14d768 MS |
894 | /* |
895 | * See if the printer supports SNMP... | |
896 | */ | |
897 | ||
c8fef167 MS |
898 | if (snmp_fd >= 0) |
899 | have_supplies = !backendSNMPSupplies(snmp_fd, &(addrlist->addr), NULL, | |
900 | NULL); | |
426c6a59 MS |
901 | else |
902 | have_supplies = 0; | |
7a14d768 MS |
903 | |
904 | /* | |
905 | * Check for side-channel requests... | |
906 | */ | |
907 | ||
c8fef167 | 908 | backendCheckSideChannel(snmp_fd, &(addrlist->addr)); |
7a14d768 | 909 | |
ef416fc2 | 910 | /* |
911 | * Next, open the print file and figure out its size... | |
912 | */ | |
913 | ||
f42414bf | 914 | if (print_fd) |
ef416fc2 | 915 | { |
c0e1af83 | 916 | /* |
917 | * Use the size from the print file... | |
918 | */ | |
919 | ||
f42414bf | 920 | if (fstat(print_fd, &filestats)) |
921 | { | |
f42414bf | 922 | close(fd); |
ef416fc2 | 923 | |
c7017ecc | 924 | perror("DEBUG: unable to stat print file"); |
f42414bf | 925 | return (CUPS_BACKEND_FAILED); |
926 | } | |
ef416fc2 | 927 | |
f42414bf | 928 | filestats.st_size *= manual_copies; |
ef416fc2 | 929 | } |
f42414bf | 930 | else |
c0e1af83 | 931 | { |
932 | /* | |
933 | * Use a "very large value" for the size so that the printer will | |
934 | * keep printing until we close the connection... | |
935 | */ | |
936 | ||
f42414bf | 937 | #ifdef _LARGEFILE_SOURCE |
938 | filestats.st_size = (size_t)(999999999999.0); | |
939 | #else | |
940 | filestats.st_size = 2147483647; | |
941 | #endif /* _LARGEFILE_SOURCE */ | |
c0e1af83 | 942 | } |
ef416fc2 | 943 | |
944 | /* | |
945 | * Send a job header to the printer, specifying no banner page and | |
946 | * literal output... | |
947 | */ | |
948 | ||
12f89d24 | 949 | if (lpd_command(fd, "\002%s\n", |
ef416fc2 | 950 | printer)) /* Receive print job(s) */ |
951 | { | |
ef416fc2 | 952 | close(fd); |
953 | return (CUPS_BACKEND_FAILED); | |
954 | } | |
955 | ||
37e7e6e0 | 956 | if (orighost && _cups_strcasecmp(orighost, "localhost")) |
3e7fe0ca MS |
957 | strlcpy(localhost, orighost, sizeof(localhost)); |
958 | else | |
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 | ||
12f89d24 | 1004 | if (lpd_command(fd, "\002%d cfA%03.3d%.15s\n", strlen(control), |
ef416fc2 | 1005 | (int)getpid() % 1000, localhost)) |
1006 | { | |
ef416fc2 | 1007 | close(fd); |
1008 | ||
1009 | return (CUPS_BACKEND_FAILED); | |
1010 | } | |
1011 | ||
0837b7e8 MS |
1012 | fprintf(stderr, "DEBUG: Sending control file (%u bytes)\n", |
1013 | (unsigned)strlen(control)); | |
ef416fc2 | 1014 | |
1015 | if (lpd_write(fd, control, strlen(control) + 1) < (strlen(control) + 1)) | |
1016 | { | |
1017 | status = errno; | |
c7017ecc MS |
1018 | perror("DEBUG: Unable to write control file"); |
1019 | ||
ef416fc2 | 1020 | } |
1021 | else | |
1022 | { | |
ef416fc2 | 1023 | if (read(fd, &status, 1) < 1) |
1024 | { | |
0837b7e8 | 1025 | _cupsLangPrintFilter(stderr, "WARNING", |
f3c17241 | 1026 | _("The printer did not respond.")); |
ef416fc2 | 1027 | status = errno; |
1028 | } | |
ef416fc2 | 1029 | } |
1030 | ||
1031 | if (status != 0) | |
0837b7e8 MS |
1032 | _cupsLangPrintFilter(stderr, "ERROR", |
1033 | _("Remote host did not accept control file (%d)."), | |
1034 | status); | |
ef416fc2 | 1035 | else |
0837b7e8 MS |
1036 | _cupsLangPrintFilter(stderr, "INFO", |
1037 | _("Control file sent successfully.")); | |
ef416fc2 | 1038 | } |
1039 | else | |
1040 | status = 0; | |
1041 | ||
1042 | if (status == 0) | |
1043 | { | |
7a14d768 MS |
1044 | /* |
1045 | * Check for side-channel requests... | |
1046 | */ | |
1047 | ||
1048 | backendCheckSideChannel(snmp_fd, &(addr->addr)); | |
1049 | ||
ef416fc2 | 1050 | /* |
1051 | * Send the print file... | |
1052 | */ | |
1053 | ||
12f89d24 | 1054 | if (lpd_command(fd, "\003" CUPS_LLFMT " dfA%03.3d%.15s\n", |
ef416fc2 | 1055 | CUPS_LLCAST filestats.st_size, (int)getpid() % 1000, |
1056 | localhost)) | |
1057 | { | |
ef416fc2 | 1058 | close(fd); |
1059 | ||
1060 | return (CUPS_BACKEND_FAILED); | |
1061 | } | |
1062 | ||
0837b7e8 MS |
1063 | fprintf(stderr, "DEBUG: Sending data file (" CUPS_LLFMT " bytes)\n", |
1064 | CUPS_LLCAST filestats.st_size); | |
ef416fc2 | 1065 | |
1066 | tbytes = 0; | |
1067 | for (copy = 0; copy < manual_copies; copy ++) | |
1068 | { | |
f42414bf | 1069 | lseek(print_fd, 0, SEEK_SET); |
ef416fc2 | 1070 | |
f42414bf | 1071 | while ((nbytes = read(print_fd, buffer, sizeof(buffer))) > 0) |
ef416fc2 | 1072 | { |
0837b7e8 MS |
1073 | _cupsLangPrintFilter(stderr, "INFO", |
1074 | _("Spooling job, %.0f%% complete."), | |
1075 | 100.0 * tbytes / filestats.st_size); | |
ef416fc2 | 1076 | |
1077 | if (lpd_write(fd, buffer, nbytes) < nbytes) | |
1078 | { | |
c7017ecc | 1079 | perror("DEBUG: Unable to send print file to printer"); |
ef416fc2 | 1080 | break; |
1081 | } | |
1082 | else | |
1083 | tbytes += nbytes; | |
1084 | } | |
1085 | } | |
1086 | ||
f42414bf | 1087 | if (mode == MODE_STANDARD) |
ef416fc2 | 1088 | { |
f42414bf | 1089 | if (tbytes < filestats.st_size) |
1090 | status = errno; | |
1091 | else if (lpd_write(fd, "", 1) < 1) | |
1092 | { | |
c7017ecc | 1093 | perror("DEBUG: Unable to send trailing nul to printer"); |
f42414bf | 1094 | status = errno; |
1095 | } | |
1096 | else | |
1097 | { | |
1098 | /* | |
1099 | * Read the status byte from the printer; if we can't read the byte | |
1100 | * back now, we should set status to "errno", however at this point | |
1101 | * we know the printer got the whole file and we don't necessarily | |
1102 | * want to requeue it over and over... | |
1103 | */ | |
ef416fc2 | 1104 | |
f42414bf | 1105 | if (recv(fd, &status, 1, 0) < 1) |
1106 | { | |
0837b7e8 | 1107 | _cupsLangPrintFilter(stderr, "WARNING", |
f3c17241 | 1108 | _("The printer did not respond.")); |
f42414bf | 1109 | status = 0; |
1110 | } | |
f42414bf | 1111 | } |
ef416fc2 | 1112 | } |
f42414bf | 1113 | else |
1114 | status = 0; | |
ef416fc2 | 1115 | |
1116 | if (status != 0) | |
0837b7e8 MS |
1117 | _cupsLangPrintFilter(stderr, "ERROR", |
1118 | _("Remote host did not accept data file (%d)."), | |
1119 | status); | |
ef416fc2 | 1120 | else |
0837b7e8 MS |
1121 | _cupsLangPrintFilter(stderr, "INFO", |
1122 | _("Data file sent successfully.")); | |
ef416fc2 | 1123 | } |
1124 | ||
1125 | if (status == 0 && order == ORDER_DATA_CONTROL) | |
1126 | { | |
7a14d768 MS |
1127 | /* |
1128 | * Check for side-channel requests... | |
1129 | */ | |
1130 | ||
1131 | backendCheckSideChannel(snmp_fd, &(addr->addr)); | |
1132 | ||
1133 | /* | |
1134 | * Send control file... | |
1135 | */ | |
1136 | ||
12f89d24 | 1137 | if (lpd_command(fd, "\002%d cfA%03.3d%.15s\n", strlen(control), |
ef416fc2 | 1138 | (int)getpid() % 1000, localhost)) |
1139 | { | |
ef416fc2 | 1140 | close(fd); |
1141 | ||
1142 | return (CUPS_BACKEND_FAILED); | |
1143 | } | |
1144 | ||
0837b7e8 MS |
1145 | fprintf(stderr, "DEBUG: Sending control file (%lu bytes)\n", |
1146 | (unsigned long)strlen(control)); | |
ef416fc2 | 1147 | |
1148 | if (lpd_write(fd, control, strlen(control) + 1) < (strlen(control) + 1)) | |
1149 | { | |
1150 | status = errno; | |
c7017ecc | 1151 | perror("DEBUG: Unable to write control file"); |
ef416fc2 | 1152 | } |
1153 | else | |
1154 | { | |
ef416fc2 | 1155 | if (read(fd, &status, 1) < 1) |
1156 | { | |
0837b7e8 | 1157 | _cupsLangPrintFilter(stderr, "WARNING", |
f3c17241 | 1158 | _("The printer did not respond.")); |
ef416fc2 | 1159 | status = errno; |
1160 | } | |
ef416fc2 | 1161 | } |
1162 | ||
1163 | if (status != 0) | |
0837b7e8 MS |
1164 | _cupsLangPrintFilter(stderr, "ERROR", |
1165 | _("Remote host did not accept control file (%d)."), | |
1166 | status); | |
ef416fc2 | 1167 | else |
0837b7e8 MS |
1168 | _cupsLangPrintFilter(stderr, "INFO", |
1169 | _("Control file sent successfully.")); | |
ef416fc2 | 1170 | } |
1171 | ||
7a14d768 | 1172 | /* |
52f6f666 | 1173 | * Collect the final supply levels as needed... |
7a14d768 MS |
1174 | */ |
1175 | ||
426c6a59 | 1176 | if (have_supplies) |
52f6f666 | 1177 | backendSNMPSupplies(snmp_fd, &(addr->addr), NULL, NULL); |
7a14d768 | 1178 | |
ef416fc2 | 1179 | /* |
1180 | * Close the socket connection and input file... | |
1181 | */ | |
1182 | ||
1183 | close(fd); | |
ef416fc2 | 1184 | |
1185 | if (status == 0) | |
ef416fc2 | 1186 | return (CUPS_BACKEND_OK); |
ef416fc2 | 1187 | |
1188 | /* | |
1189 | * Waiting for a retry... | |
1190 | */ | |
1191 | ||
1192 | sleep(30); | |
1193 | } | |
1194 | ||
ef416fc2 | 1195 | /* |
c8fef167 | 1196 | * If we get here, then the job has been canceled... |
ef416fc2 | 1197 | */ |
1198 | ||
1199 | return (CUPS_BACKEND_FAILED); | |
1200 | } | |
1201 | ||
1202 | ||
ef416fc2 | 1203 | /* |
1204 | * 'lpd_write()' - Write a buffer of data to an LPD server. | |
1205 | */ | |
1206 | ||
1207 | static int /* O - Number of bytes written or -1 on error */ | |
1208 | lpd_write(int lpd_fd, /* I - LPD socket */ | |
1209 | char *buffer, /* I - Buffer to write */ | |
1210 | int length) /* I - Number of bytes to write */ | |
1211 | { | |
1212 | int bytes, /* Number of bytes written */ | |
1213 | total; /* Total number of bytes written */ | |
1214 | ||
1215 | ||
1216 | if (abort_job) | |
1217 | return (-1); | |
1218 | ||
1219 | total = 0; | |
1220 | while ((bytes = send(lpd_fd, buffer, length - total, 0)) >= 0) | |
1221 | { | |
1222 | total += bytes; | |
1223 | buffer += bytes; | |
1224 | ||
1225 | if (total == length) | |
1226 | break; | |
1227 | } | |
1228 | ||
1229 | if (bytes < 0) | |
1230 | return (-1); | |
1231 | else | |
1232 | return (length); | |
1233 | } | |
1234 | ||
1235 | ||
1236 | #ifndef HAVE_RRESVPORT_AF | |
1237 | /* | |
1238 | * 'rresvport_af()' - A simple implementation of rresvport_af(). | |
1239 | */ | |
1240 | ||
1241 | static int /* O - Socket or -1 on error */ | |
1242 | rresvport_af(int *port, /* IO - Port number to bind to */ | |
1243 | int family) /* I - Address family */ | |
1244 | { | |
1245 | http_addr_t addr; /* Socket address */ | |
1246 | int fd; /* Socket file descriptor */ | |
1247 | ||
1248 | ||
1249 | /* | |
1250 | * Try to create an IPv4 socket... | |
1251 | */ | |
1252 | ||
1253 | if ((fd = socket(family, SOCK_STREAM, 0)) < 0) | |
1254 | return (-1); | |
1255 | ||
1256 | /* | |
1257 | * Initialize the address buffer... | |
1258 | */ | |
1259 | ||
1260 | memset(&addr, 0, sizeof(addr)); | |
1261 | addr.addr.sa_family = family; | |
1262 | ||
1263 | /* | |
1264 | * Try to bind the socket to a reserved port... | |
1265 | */ | |
1266 | ||
1267 | while (*port > 511) | |
1268 | { | |
1269 | /* | |
1270 | * Set the port number... | |
1271 | */ | |
1272 | ||
22c9029b | 1273 | _httpAddrSetPort(&addr, *port); |
ef416fc2 | 1274 | |
1275 | /* | |
1276 | * Try binding the port to the socket; return if all is OK... | |
1277 | */ | |
1278 | ||
215ef638 | 1279 | if (!bind(fd, (struct sockaddr *)&addr, httpAddrSize(&addr))) |
ef416fc2 | 1280 | return (fd); |
1281 | ||
1282 | /* | |
1283 | * Stop if we have any error other than "address already in use"... | |
1284 | */ | |
1285 | ||
1286 | if (errno != EADDRINUSE) | |
1287 | { | |
1288 | # ifdef WIN32 | |
1289 | closesocket(fd); | |
1290 | # else | |
1291 | close(fd); | |
1292 | # endif /* WIN32 */ | |
1293 | ||
1294 | return (-1); | |
1295 | } | |
1296 | ||
1297 | /* | |
1298 | * Try the next port... | |
1299 | */ | |
1300 | ||
1301 | (*port)--; | |
1302 | } | |
1303 | ||
1304 | /* | |
1305 | * Wasn't able to bind to a reserved port, so close the socket and return | |
1306 | * -1... | |
1307 | */ | |
1308 | ||
1309 | # ifdef WIN32 | |
1310 | closesocket(fd); | |
1311 | # else | |
1312 | close(fd); | |
1313 | # endif /* WIN32 */ | |
1314 | ||
1315 | return (-1); | |
1316 | } | |
1317 | #endif /* !HAVE_RRESVPORT_AF */ | |
1318 | ||
1319 | ||
1320 | /* | |
1321 | * 'sigterm_handler()' - Handle 'terminate' signals that stop the backend. | |
1322 | */ | |
1323 | ||
1324 | static void | |
1325 | sigterm_handler(int sig) /* I - Signal */ | |
1326 | { | |
1327 | (void)sig; /* remove compiler warnings... */ | |
1328 | ||
1329 | abort_job = 1; | |
1330 | } | |
1331 | ||
1332 | ||
1333 | /* | |
215ef638 | 1334 | * End of "$Id: lpd.c 12005 2014-07-08 15:46:59Z msweet $". |
ef416fc2 | 1335 | */ |