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Commit | Line | Data |
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ef416fc2 | 1 | /* |
581dae2d | 2 | * Line Printer Daemon backend for CUPS. |
ef416fc2 | 3 | * |
a6a4a2f5 | 4 | * Copyright 2007-2016 by Apple Inc. |
581dae2d | 5 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 6 | * |
581dae2d MS |
7 | * These coded instructions, statements, and computer programs are the |
8 | * property of Apple Inc. and are protected by Federal copyright | |
9 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
10 | * "LICENSE" which should have been included with this file. If this | |
11 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 12 | */ |
13 | ||
14 | /* | |
15 | * Include necessary headers. | |
16 | */ | |
17 | ||
ef416fc2 | 18 | #include <cups/http-private.h> |
7a14d768 | 19 | #include "backend-private.h" |
ef416fc2 | 20 | #include <stdarg.h> |
ef416fc2 | 21 | #include <sys/types.h> |
22 | #include <sys/stat.h> | |
c7017ecc | 23 | #include <stdio.h> |
ef416fc2 | 24 | |
25 | #ifdef WIN32 | |
26 | # include <winsock.h> | |
27 | #else | |
28 | # include <sys/socket.h> | |
29 | # include <netinet/in.h> | |
30 | # include <arpa/inet.h> | |
31 | # include <netdb.h> | |
32 | #endif /* WIN32 */ | |
fa73b229 | 33 | #ifdef __APPLE__ |
34 | # include <CoreFoundation/CFNumber.h> | |
35 | # include <CoreFoundation/CFPreferences.h> | |
36 | #endif /* __APPLE__ */ | |
ef416fc2 | 37 | |
38 | ||
39 | /* | |
40 | * Globals... | |
41 | */ | |
42 | ||
43 | static char tmpfilename[1024] = ""; /* Temporary spool file name */ | |
44 | static int abort_job = 0; /* Non-zero if we get SIGTERM */ | |
45 | ||
46 | ||
f42414bf | 47 | /* |
48 | * Print mode... | |
49 | */ | |
50 | ||
51 | #define MODE_STANDARD 0 /* Queue a copy */ | |
52 | #define MODE_STREAM 1 /* Stream a copy */ | |
53 | ||
54 | ||
ef416fc2 | 55 | /* |
56 | * The order for control and data files in LPD requests... | |
57 | */ | |
58 | ||
59 | #define ORDER_CONTROL_DATA 0 /* Control file first, then data */ | |
60 | #define ORDER_DATA_CONTROL 1 /* Data file first, then control */ | |
61 | ||
62 | ||
63 | /* | |
64 | * What to reserve... | |
65 | */ | |
66 | ||
67 | #define RESERVE_NONE 0 /* Don't reserve a priviledged port */ | |
68 | #define RESERVE_RFC1179 1 /* Reserve port 721-731 */ | |
69 | #define RESERVE_ANY 2 /* Reserve port 1-1023 */ | |
70 | ||
71 | ||
72 | /* | |
73 | * Local functions... | |
74 | */ | |
75 | ||
a6a4a2f5 | 76 | static int cups_rresvport(int *port, int family); |
12f89d24 | 77 | static int lpd_command(int lpd_fd, char *format, ...); |
c8fef167 MS |
78 | static int lpd_queue(const char *hostname, http_addrlist_t *addrlist, |
79 | const char *printer, int print_fd, int snmp_fd, | |
80 | int mode, const char *user, const char *title, | |
81 | int copies, int banner, int format, int order, | |
82 | int reserve, int manual_copies, int timeout, | |
3e7fe0ca | 83 | int contimeout, const char *orighost); |
7e86f2f6 | 84 | static ssize_t lpd_write(int lpd_fd, char *buffer, size_t length); |
ef416fc2 | 85 | static void sigterm_handler(int sig); |
86 | ||
87 | ||
88 | /* | |
89 | * 'main()' - Send a file to the printer or server. | |
90 | * | |
91 | * Usage: | |
92 | * | |
93 | * printer-uri job-id user title copies options [file] | |
94 | */ | |
95 | ||
96 | int /* O - Exit status */ | |
97 | main(int argc, /* I - Number of command-line arguments (6 or 7) */ | |
98 | char *argv[]) /* I - Command-line arguments */ | |
99 | { | |
1f0275e3 | 100 | const char *device_uri; /* Device URI */ |
acb056cb | 101 | char scheme[255], /* Scheme in URI */ |
7a14d768 MS |
102 | hostname[1024], /* Hostname */ |
103 | username[255], /* Username info */ | |
104 | resource[1024], /* Resource info (printer name) */ | |
105 | *options, /* Pointer to options */ | |
106 | *name, /* Name of option */ | |
107 | *value, /* Value of option */ | |
108 | sep, /* Separator character */ | |
109 | *filename, /* File to print */ | |
110 | title[256]; /* Title string */ | |
111 | int port; /* Port number */ | |
c8fef167 | 112 | http_addrlist_t *addrlist; /* List of addresses for printer */ |
5a9febac | 113 | int snmp_enabled = 1; /* Is SNMP enabled? */ |
c8fef167 | 114 | int snmp_fd; /* SNMP socket */ |
7a14d768 MS |
115 | int fd; /* Print file */ |
116 | int status; /* Status of LPD job */ | |
117 | int mode; /* Print mode */ | |
118 | int banner; /* Print banner page? */ | |
119 | int format; /* Print format */ | |
120 | int order; /* Order of control/data files */ | |
121 | int reserve; /* Reserve priviledged port? */ | |
122 | int sanitize_title; /* Sanitize title string? */ | |
123 | int manual_copies, /* Do manual copies? */ | |
124 | timeout, /* Timeout */ | |
125 | contimeout, /* Connection timeout */ | |
126 | copies; /* Number of copies */ | |
eac3a0a0 MS |
127 | ssize_t bytes = 0; /* Initial bytes read */ |
128 | char buffer[16384]; /* Initial print buffer */ | |
ef416fc2 | 129 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
7a14d768 | 130 | struct sigaction action; /* Actions for POSIX signals */ |
ef416fc2 | 131 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ |
3e7fe0ca MS |
132 | int num_jobopts; /* Number of job options */ |
133 | cups_option_t *jobopts = NULL; /* Job options */ | |
ef416fc2 | 134 | |
135 | ||
136 | /* | |
137 | * Make sure status messages are not buffered... | |
138 | */ | |
139 | ||
140 | setbuf(stderr, NULL); | |
141 | ||
142 | /* | |
143 | * Ignore SIGPIPE and catch SIGTERM signals... | |
144 | */ | |
145 | ||
146 | #ifdef HAVE_SIGSET | |
147 | sigset(SIGPIPE, SIG_IGN); | |
148 | sigset(SIGTERM, sigterm_handler); | |
149 | #elif defined(HAVE_SIGACTION) | |
150 | memset(&action, 0, sizeof(action)); | |
151 | action.sa_handler = SIG_IGN; | |
152 | sigaction(SIGPIPE, &action, NULL); | |
153 | ||
154 | sigemptyset(&action.sa_mask); | |
155 | sigaddset(&action.sa_mask, SIGTERM); | |
156 | action.sa_handler = sigterm_handler; | |
157 | sigaction(SIGTERM, &action, NULL); | |
158 | #else | |
159 | signal(SIGPIPE, SIG_IGN); | |
160 | signal(SIGTERM, sigterm_handler); | |
161 | #endif /* HAVE_SIGSET */ | |
162 | ||
163 | /* | |
164 | * Check command-line... | |
165 | */ | |
166 | ||
167 | if (argc == 1) | |
168 | { | |
8b450588 MS |
169 | printf("network lpd \"Unknown\" \"%s\"\n", |
170 | _cupsLangString(cupsLangDefault(), _("LPD/LPR Host or Printer"))); | |
ef416fc2 | 171 | return (CUPS_BACKEND_OK); |
172 | } | |
173 | else if (argc < 6 || argc > 7) | |
174 | { | |
db1f069b | 175 | _cupsLangPrintf(stderr, |
0837b7e8 | 176 | _("Usage: %s job-id user title copies options [file]"), |
db1f069b | 177 | argv[0]); |
ef416fc2 | 178 | return (CUPS_BACKEND_FAILED); |
179 | } | |
180 | ||
3e7fe0ca MS |
181 | num_jobopts = cupsParseOptions(argv[5], 0, &jobopts); |
182 | ||
ef416fc2 | 183 | /* |
184 | * Extract the hostname and printer name from the URI... | |
185 | */ | |
186 | ||
0268488e MS |
187 | while ((device_uri = cupsBackendDeviceURI(argv)) == NULL) |
188 | { | |
189 | _cupsLangPrintFilter(stderr, "INFO", _("Unable to locate printer.")); | |
190 | sleep(10); | |
191 | ||
192 | if (getenv("CLASS") != NULL) | |
193 | return (CUPS_BACKEND_FAILED); | |
194 | } | |
1f0275e3 | 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 | /* |
0268488e | 227 | * We want to pass UTF-8 characters by default, not re-map them (3071945) |
c0e1af83 | 228 | */ |
229 | ||
fa73b229 | 230 | sanitize_title = 0; |
0268488e | 231 | #else |
c0e1af83 | 232 | /* |
0268488e | 233 | * Otherwise we want to re-map UTF-8 to "safe" characters by default... |
c0e1af83 | 234 | */ |
235 | ||
fa73b229 | 236 | sanitize_title = 1; |
237 | #endif /* __APPLE__ */ | |
ef416fc2 | 238 | |
239 | if ((options = strchr(resource, '?')) != NULL) | |
240 | { | |
241 | /* | |
242 | * Yup, terminate the device name string and move to the first | |
243 | * character of the options... | |
244 | */ | |
245 | ||
246 | *options++ = '\0'; | |
247 | ||
248 | /* | |
249 | * Parse options... | |
250 | */ | |
251 | ||
252 | while (*options) | |
253 | { | |
254 | /* | |
255 | * Get the name... | |
256 | */ | |
257 | ||
db1f069b | 258 | name = options; |
ef416fc2 | 259 | |
db1f069b MS |
260 | while (*options && *options != '=' && *options != '+' && *options != '&') |
261 | options ++; | |
262 | ||
263 | if ((sep = *options) != '\0') | |
264 | *options++ = '\0'; | |
265 | ||
266 | if (sep == '=') | |
ef416fc2 | 267 | { |
268 | /* | |
269 | * Get the value... | |
270 | */ | |
271 | ||
db1f069b | 272 | value = options; |
ef416fc2 | 273 | |
db1f069b | 274 | while (*options && *options != '+' && *options != '&') |
ef416fc2 | 275 | options ++; |
db1f069b MS |
276 | |
277 | if (*options) | |
278 | *options++ = '\0'; | |
ef416fc2 | 279 | } |
280 | else | |
db1f069b | 281 | value = (char *)""; |
ef416fc2 | 282 | |
283 | /* | |
284 | * Process the option... | |
285 | */ | |
286 | ||
88f9aafc | 287 | if (!_cups_strcasecmp(name, "banner")) |
ef416fc2 | 288 | { |
289 | /* | |
290 | * Set the banner... | |
291 | */ | |
292 | ||
88f9aafc MS |
293 | banner = !value[0] || !_cups_strcasecmp(value, "on") || |
294 | !_cups_strcasecmp(value, "yes") || !_cups_strcasecmp(value, "true"); | |
ef416fc2 | 295 | } |
88f9aafc | 296 | else if (!_cups_strcasecmp(name, "format") && value[0]) |
ef416fc2 | 297 | { |
298 | /* | |
299 | * Set output format... | |
300 | */ | |
301 | ||
fa73b229 | 302 | if (strchr("cdfglnoprtv", value[0])) |
ef416fc2 | 303 | format = value[0]; |
304 | else | |
0837b7e8 MS |
305 | _cupsLangPrintFilter(stderr, "ERROR", |
306 | _("Unknown format character: \"%c\"."), | |
307 | value[0]); | |
ef416fc2 | 308 | } |
88f9aafc | 309 | else if (!_cups_strcasecmp(name, "mode") && value[0]) |
f42414bf | 310 | { |
311 | /* | |
312 | * Set control/data order... | |
313 | */ | |
314 | ||
88f9aafc | 315 | if (!_cups_strcasecmp(value, "standard")) |
bc44d920 | 316 | mode = MODE_STANDARD; |
88f9aafc | 317 | else if (!_cups_strcasecmp(value, "stream")) |
bc44d920 | 318 | mode = MODE_STREAM; |
f42414bf | 319 | else |
0837b7e8 MS |
320 | _cupsLangPrintFilter(stderr, "ERROR", |
321 | _("Unknown print mode: \"%s\"."), value); | |
f42414bf | 322 | } |
88f9aafc | 323 | else if (!_cups_strcasecmp(name, "order") && value[0]) |
ef416fc2 | 324 | { |
325 | /* | |
326 | * Set control/data order... | |
327 | */ | |
328 | ||
88f9aafc | 329 | if (!_cups_strcasecmp(value, "control,data")) |
ef416fc2 | 330 | order = ORDER_CONTROL_DATA; |
88f9aafc | 331 | else if (!_cups_strcasecmp(value, "data,control")) |
ef416fc2 | 332 | order = ORDER_DATA_CONTROL; |
333 | else | |
0837b7e8 MS |
334 | _cupsLangPrintFilter(stderr, "ERROR", |
335 | _("Unknown file order: \"%s\"."), value); | |
ef416fc2 | 336 | } |
88f9aafc | 337 | else if (!_cups_strcasecmp(name, "reserve")) |
ef416fc2 | 338 | { |
339 | /* | |
340 | * Set port reservation mode... | |
341 | */ | |
342 | ||
88f9aafc | 343 | if (!value[0] || !_cups_strcasecmp(value, "on") || |
5a9febac MS |
344 | !_cups_strcasecmp(value, "yes") || |
345 | !_cups_strcasecmp(value, "true") || | |
88f9aafc | 346 | !_cups_strcasecmp(value, "rfc1179")) |
ef416fc2 | 347 | reserve = RESERVE_RFC1179; |
88f9aafc | 348 | else if (!_cups_strcasecmp(value, "any")) |
ef416fc2 | 349 | reserve = RESERVE_ANY; |
350 | else | |
351 | reserve = RESERVE_NONE; | |
352 | } | |
88f9aafc | 353 | else if (!_cups_strcasecmp(name, "manual_copies")) |
ef416fc2 | 354 | { |
355 | /* | |
356 | * Set manual copies... | |
357 | */ | |
358 | ||
88f9aafc | 359 | manual_copies = !value[0] || !_cups_strcasecmp(value, "on") || |
5a9febac MS |
360 | !_cups_strcasecmp(value, "yes") || |
361 | !_cups_strcasecmp(value, "true"); | |
ef416fc2 | 362 | } |
88f9aafc | 363 | else if (!_cups_strcasecmp(name, "sanitize_title")) |
ef416fc2 | 364 | { |
365 | /* | |
366 | * Set sanitize title... | |
367 | */ | |
368 | ||
88f9aafc | 369 | sanitize_title = !value[0] || !_cups_strcasecmp(value, "on") || |
5a9febac MS |
370 | !_cups_strcasecmp(value, "yes") || |
371 | !_cups_strcasecmp(value, "true"); | |
372 | } | |
373 | else if (!_cups_strcasecmp(name, "snmp")) | |
374 | { | |
375 | /* | |
376 | * Enable/disable SNMP stuff... | |
377 | */ | |
378 | ||
379 | snmp_enabled = !value[0] || !_cups_strcasecmp(value, "on") || | |
5a582409 MS |
380 | !_cups_strcasecmp(value, "yes") || |
381 | !_cups_strcasecmp(value, "true"); | |
ef416fc2 | 382 | } |
88f9aafc | 383 | else if (!_cups_strcasecmp(name, "timeout")) |
ef416fc2 | 384 | { |
385 | /* | |
386 | * Set the timeout... | |
387 | */ | |
388 | ||
389 | if (atoi(value) > 0) | |
390 | timeout = atoi(value); | |
391 | } | |
88f9aafc | 392 | else if (!_cups_strcasecmp(name, "contimeout")) |
fa73b229 | 393 | { |
394 | /* | |
c0e1af83 | 395 | * Set the connection timeout... |
fa73b229 | 396 | */ |
397 | ||
398 | if (atoi(value) > 0) | |
399 | contimeout = atoi(value); | |
400 | } | |
ef416fc2 | 401 | } |
402 | } | |
403 | ||
f42414bf | 404 | if (mode == MODE_STREAM) |
405 | order = ORDER_CONTROL_DATA; | |
406 | ||
c8fef167 MS |
407 | /* |
408 | * Find the printer... | |
409 | */ | |
410 | ||
f5cffc18 | 411 | addrlist = backendLookup(hostname, port, NULL); |
c8fef167 | 412 | |
f5cffc18 MS |
413 | /* |
414 | * See if the printer supports SNMP... | |
415 | */ | |
c8fef167 | 416 | |
5a9febac MS |
417 | if (snmp_enabled) |
418 | snmp_fd = _cupsSNMPOpen(addrlist->addr.addr.sa_family); | |
419 | else | |
420 | snmp_fd = -1; | |
c8fef167 MS |
421 | |
422 | /* | |
423 | * Wait for data from the filter... | |
424 | */ | |
425 | ||
426 | if (argc == 6) | |
eac3a0a0 | 427 | { |
f14324a7 | 428 | if (!backendWaitLoop(snmp_fd, &(addrlist->addr), 0, backendNetworkSideCB)) |
c8fef167 | 429 | return (CUPS_BACKEND_OK); |
eac3a0a0 MS |
430 | else if (mode == MODE_STANDARD && |
431 | (bytes = read(0, buffer, sizeof(buffer))) <= 0) | |
432 | return (CUPS_BACKEND_OK); | |
433 | } | |
c8fef167 | 434 | |
f42414bf | 435 | /* |
436 | * If we have 7 arguments, print the file named on the command-line. | |
437 | * Otherwise, copy stdin to a temporary file and print the temporary | |
438 | * file. | |
439 | */ | |
440 | ||
441 | if (argc == 6 && mode == MODE_STANDARD) | |
442 | { | |
443 | /* | |
444 | * Copy stdin to a temporary file... | |
445 | */ | |
446 | ||
f42414bf | 447 | if ((fd = cupsTempFd(tmpfilename, sizeof(tmpfilename))) < 0) |
448 | { | |
c7017ecc | 449 | perror("DEBUG: Unable to create temporary file"); |
f42414bf | 450 | return (CUPS_BACKEND_FAILED); |
451 | } | |
452 | ||
0837b7e8 | 453 | _cupsLangPrintFilter(stderr, "INFO", _("Copying print data.")); |
8b116e60 | 454 | |
eac3a0a0 | 455 | if (bytes > 0) |
7e86f2f6 | 456 | write(fd, buffer, (size_t)bytes); |
eac3a0a0 MS |
457 | |
458 | backendRunLoop(-1, fd, snmp_fd, &(addrlist->addr), 0, 0, | |
ef55b745 | 459 | backendNetworkSideCB); |
f42414bf | 460 | } |
461 | else if (argc == 6) | |
462 | { | |
463 | /* | |
464 | * Stream from stdin... | |
465 | */ | |
466 | ||
467 | filename = NULL; | |
468 | fd = 0; | |
469 | } | |
470 | else | |
471 | { | |
472 | filename = argv[6]; | |
473 | fd = open(filename, O_RDONLY); | |
474 | ||
475 | if (fd == -1) | |
476 | { | |
0837b7e8 | 477 | _cupsLangPrintError("ERROR", _("Unable to open print file")); |
f42414bf | 478 | return (CUPS_BACKEND_FAILED); |
479 | } | |
480 | } | |
481 | ||
ef416fc2 | 482 | /* |
483 | * Sanitize the document title... | |
484 | */ | |
485 | ||
486 | strlcpy(title, argv[3], sizeof(title)); | |
487 | ||
488 | if (sanitize_title) | |
489 | { | |
490 | /* | |
491 | * Sanitize the title string so that we don't cause problems on | |
492 | * the remote end... | |
493 | */ | |
494 | ||
db1f069b MS |
495 | char *ptr; |
496 | ||
ef416fc2 | 497 | for (ptr = title; *ptr; ptr ++) |
498 | if (!isalnum(*ptr & 255) && !isspace(*ptr & 255)) | |
499 | *ptr = '_'; | |
500 | } | |
501 | ||
502 | /* | |
503 | * Queue the job... | |
504 | */ | |
505 | ||
506 | if (argc > 6) | |
507 | { | |
508 | if (manual_copies) | |
509 | { | |
510 | manual_copies = atoi(argv[4]); | |
511 | copies = 1; | |
512 | } | |
513 | else | |
514 | { | |
515 | manual_copies = 1; | |
516 | copies = atoi(argv[4]); | |
517 | } | |
518 | ||
c8fef167 MS |
519 | status = lpd_queue(hostname, addrlist, resource + 1, fd, snmp_fd, mode, |
520 | username, title, copies, banner, format, order, reserve, | |
3e7fe0ca MS |
521 | manual_copies, timeout, contimeout, |
522 | cupsGetOption("job-originating-host-name", num_jobopts, | |
523 | jobopts)); | |
ef416fc2 | 524 | |
525 | if (!status) | |
526 | fprintf(stderr, "PAGE: 1 %d\n", atoi(argv[4])); | |
527 | } | |
528 | else | |
c8fef167 MS |
529 | status = lpd_queue(hostname, addrlist, resource + 1, fd, snmp_fd, mode, |
530 | username, title, 1, banner, format, order, reserve, 1, | |
3e7fe0ca MS |
531 | timeout, contimeout, |
532 | cupsGetOption("job-originating-host-name", num_jobopts, | |
533 | jobopts)); | |
ef416fc2 | 534 | |
535 | /* | |
536 | * Remove the temporary file if necessary... | |
537 | */ | |
538 | ||
539 | if (tmpfilename[0]) | |
540 | unlink(tmpfilename); | |
541 | ||
f42414bf | 542 | if (fd) |
543 | close(fd); | |
544 | ||
c8fef167 MS |
545 | if (snmp_fd >= 0) |
546 | _cupsSNMPClose(snmp_fd); | |
547 | ||
ef416fc2 | 548 | /* |
549 | * Return the queue status... | |
550 | */ | |
551 | ||
552 | return (status); | |
553 | } | |
554 | ||
555 | ||
a6a4a2f5 MS |
556 | /* |
557 | * 'cups_rresvport()' - A simple implementation of rresvport_af(). | |
558 | */ | |
559 | ||
560 | static int /* O - Socket or -1 on error */ | |
561 | cups_rresvport(int *port, /* IO - Port number to bind to */ | |
562 | int family) /* I - Address family */ | |
563 | { | |
564 | http_addr_t addr; /* Socket address */ | |
565 | int fd; /* Socket file descriptor */ | |
566 | ||
567 | ||
568 | /* | |
569 | * Try to create an IPv4 socket... | |
570 | */ | |
571 | ||
572 | if ((fd = socket(family, SOCK_STREAM, 0)) < 0) | |
573 | return (-1); | |
574 | ||
575 | /* | |
576 | * Initialize the address buffer... | |
577 | */ | |
578 | ||
579 | memset(&addr, 0, sizeof(addr)); | |
79d3cd17 | 580 | addr.addr.sa_family = (sa_family_t)family; |
a6a4a2f5 MS |
581 | |
582 | /* | |
583 | * Try to bind the socket to a reserved port... | |
584 | */ | |
585 | ||
586 | while (*port > 511) | |
587 | { | |
588 | /* | |
589 | * Set the port number... | |
590 | */ | |
591 | ||
592 | _httpAddrSetPort(&addr, *port); | |
593 | ||
594 | /* | |
595 | * Try binding the port to the socket; return if all is OK... | |
596 | */ | |
597 | ||
598 | if (!bind(fd, (struct sockaddr *)&addr, (socklen_t)httpAddrLength(&addr))) | |
599 | return (fd); | |
600 | ||
601 | /* | |
602 | * Stop if we have any error other than "address already in use"... | |
603 | */ | |
604 | ||
605 | if (errno != EADDRINUSE) | |
606 | { | |
607 | httpAddrClose(NULL, fd); | |
608 | ||
609 | return (-1); | |
610 | } | |
611 | ||
612 | /* | |
613 | * Try the next port... | |
614 | */ | |
615 | ||
616 | (*port)--; | |
617 | } | |
618 | ||
619 | /* | |
620 | * Wasn't able to bind to a reserved port, so close the socket and return | |
621 | * -1... | |
622 | */ | |
623 | ||
624 | #ifdef WIN32 | |
625 | closesocket(fd); | |
626 | #else | |
627 | close(fd); | |
628 | #endif /* WIN32 */ | |
629 | ||
630 | return (-1); | |
631 | } | |
632 | ||
633 | ||
ef416fc2 | 634 | /* |
635 | * 'lpd_command()' - Send an LPR command sequence and wait for a reply. | |
636 | */ | |
637 | ||
638 | static int /* O - Status of command */ | |
639 | lpd_command(int fd, /* I - Socket connection to LPD host */ | |
ef416fc2 | 640 | char *format, /* I - printf()-style format string */ |
641 | ...) /* I - Additional args as necessary */ | |
642 | { | |
643 | va_list ap; /* Argument pointer */ | |
644 | char buf[1024]; /* Output buffer */ | |
7e86f2f6 | 645 | ssize_t bytes; /* Number of bytes to output */ |
ef416fc2 | 646 | char status; /* Status from command */ |
647 | ||
648 | ||
649 | /* | |
c8fef167 | 650 | * Don't try to send commands if the job has been canceled... |
ef416fc2 | 651 | */ |
652 | ||
653 | if (abort_job) | |
654 | return (-1); | |
655 | ||
656 | /* | |
657 | * Format the string... | |
658 | */ | |
659 | ||
660 | va_start(ap, format); | |
661 | bytes = vsnprintf(buf, sizeof(buf), format, ap); | |
662 | va_end(ap); | |
663 | ||
664 | fprintf(stderr, "DEBUG: lpd_command %2.2x %s", buf[0], buf + 1); | |
665 | ||
666 | /* | |
667 | * Send the command... | |
668 | */ | |
669 | ||
7e86f2f6 | 670 | fprintf(stderr, "DEBUG: Sending command string (" CUPS_LLFMT " bytes)...\n", CUPS_LLCAST bytes); |
ef416fc2 | 671 | |
7e86f2f6 | 672 | if (lpd_write(fd, buf, (size_t)bytes) < bytes) |
ef416fc2 | 673 | { |
c7017ecc | 674 | perror("DEBUG: Unable to send LPD command"); |
ef416fc2 | 675 | return (-1); |
676 | } | |
677 | ||
678 | /* | |
679 | * Read back the status from the command and return it... | |
680 | */ | |
681 | ||
c0e1af83 | 682 | fputs("DEBUG: Reading command status...\n", stderr); |
ef416fc2 | 683 | |
ef416fc2 | 684 | if (recv(fd, &status, 1, 0) < 1) |
685 | { | |
f3c17241 | 686 | _cupsLangPrintFilter(stderr, "WARNING", _("The printer did not respond.")); |
7e86f2f6 | 687 | status = (char)errno; |
ef416fc2 | 688 | } |
689 | ||
ef416fc2 | 690 | fprintf(stderr, "DEBUG: lpd_command returning %d\n", status); |
691 | ||
692 | return (status); | |
693 | } | |
694 | ||
695 | ||
696 | /* | |
697 | * 'lpd_queue()' - Queue a file using the Line Printer Daemon protocol. | |
698 | */ | |
699 | ||
700 | static int /* O - Zero on success, non-zero on failure */ | |
c8fef167 MS |
701 | lpd_queue(const char *hostname, /* I - Host to connect to */ |
702 | http_addrlist_t *addrlist, /* I - List of host addresses */ | |
703 | const char *printer, /* I - Printer/queue name */ | |
704 | int print_fd, /* I - File to print */ | |
705 | int snmp_fd, /* I - SNMP socket */ | |
706 | int mode, /* I - Print mode */ | |
707 | const char *user, /* I - Requesting user */ | |
708 | const char *title, /* I - Job title */ | |
709 | int copies, /* I - Number of copies */ | |
710 | int banner, /* I - Print LPD banner? */ | |
711 | int format, /* I - Format specifier */ | |
712 | int order, /* I - Order of data/control files */ | |
713 | int reserve, /* I - Reserve ports? */ | |
714 | int manual_copies,/* I - Do copies by hand... */ | |
715 | int timeout, /* I - Timeout... */ | |
3e7fe0ca MS |
716 | int contimeout, /* I - Connection timeout */ |
717 | const char *orighost) /* I - job-originating-host-name */ | |
ef416fc2 | 718 | { |
ef416fc2 | 719 | char localhost[255]; /* Local host name */ |
720 | int error; /* Error number */ | |
721 | struct stat filestats; /* File statistics */ | |
722 | int lport; /* LPD connection local port */ | |
723 | int fd; /* LPD socket */ | |
724 | char control[10240], /* LPD control 'file' */ | |
725 | *cptr; /* Pointer into control file string */ | |
726 | char status; /* Status byte from command */ | |
c0e1af83 | 727 | int delay; /* Delay for retries... */ |
26d47ec6 | 728 | char addrname[256]; /* Address name */ |
c8fef167 MS |
729 | http_addrlist_t *addr; /* Socket address */ |
730 | int have_supplies; /* Printer supports supply levels? */ | |
ef416fc2 | 731 | int copy; /* Copies written */ |
fa73b229 | 732 | time_t start_time; /* Time of first connect */ |
7e86f2f6 | 733 | ssize_t nbytes; /* Number of bytes written */ |
ef416fc2 | 734 | off_t tbytes; /* Total bytes written */ |
a74454a7 | 735 | char buffer[32768]; /* Output buffer */ |
12f89d24 MS |
736 | #ifdef WIN32 |
737 | DWORD tv; /* Timeout in milliseconds */ | |
ef416fc2 | 738 | #else |
12f89d24 MS |
739 | struct timeval tv; /* Timeout in secs and usecs */ |
740 | #endif /* WIN32 */ | |
741 | ||
ef416fc2 | 742 | |
fa73b229 | 743 | /* |
c0e1af83 | 744 | * Remember when we started trying to connect to the printer... |
fa73b229 | 745 | */ |
746 | ||
4d301e69 | 747 | start_time = time(NULL); |
fa73b229 | 748 | |
ef416fc2 | 749 | /* |
750 | * Loop forever trying to print the file... | |
751 | */ | |
752 | ||
753 | while (!abort_job) | |
754 | { | |
755 | /* | |
756 | * First try to reserve a port for this connection... | |
757 | */ | |
758 | ||
acb056cb | 759 | fprintf(stderr, "DEBUG: Connecting to %s:%d for printer %s\n", hostname, |
a469f8a5 | 760 | httpAddrPort(&(addrlist->addr)), printer); |
0837b7e8 | 761 | _cupsLangPrintFilter(stderr, "INFO", _("Connecting to printer.")); |
ef416fc2 | 762 | |
c0e1af83 | 763 | for (lport = reserve == RESERVE_RFC1179 ? 732 : 1024, addr = addrlist, |
764 | delay = 5;; | |
ef416fc2 | 765 | addr = addr->next) |
766 | { | |
767 | /* | |
c8fef167 | 768 | * Stop if this job has been canceled... |
ef416fc2 | 769 | */ |
770 | ||
771 | if (abort_job) | |
ef416fc2 | 772 | return (CUPS_BACKEND_FAILED); |
ef416fc2 | 773 | |
774 | /* | |
775 | * Choose the next priviledged port... | |
776 | */ | |
777 | ||
778 | if (!addr) | |
779 | addr = addrlist; | |
780 | ||
781 | lport --; | |
782 | ||
783 | if (lport < 721 && reserve == RESERVE_RFC1179) | |
784 | lport = 731; | |
785 | else if (lport < 1) | |
786 | lport = 1023; | |
787 | ||
788 | #ifdef HAVE_GETEUID | |
789 | if (geteuid() || !reserve) | |
790 | #else | |
791 | if (getuid() || !reserve) | |
792 | #endif /* HAVE_GETEUID */ | |
793 | { | |
794 | /* | |
795 | * Just create a regular socket... | |
796 | */ | |
797 | ||
798 | if ((fd = socket(addr->addr.addr.sa_family, SOCK_STREAM, 0)) < 0) | |
799 | { | |
c7017ecc | 800 | perror("DEBUG: Unable to create socket"); |
ef416fc2 | 801 | sleep(1); |
802 | ||
803 | continue; | |
804 | } | |
805 | ||
806 | lport = 0; | |
807 | } | |
808 | else | |
809 | { | |
810 | /* | |
811 | * We're running as root and want to comply with RFC 1179. Reserve a | |
812 | * priviledged lport between 721 and 731... | |
813 | */ | |
814 | ||
a6a4a2f5 | 815 | if ((fd = cups_rresvport(&lport, addr->addr.addr.sa_family)) < 0) |
ef416fc2 | 816 | { |
c7017ecc | 817 | perror("DEBUG: Unable to reserve port"); |
ef416fc2 | 818 | sleep(1); |
819 | ||
820 | continue; | |
821 | } | |
822 | } | |
823 | ||
824 | /* | |
825 | * Connect to the printer or server... | |
826 | */ | |
827 | ||
828 | if (abort_job) | |
829 | { | |
ef416fc2 | 830 | close(fd); |
831 | ||
832 | return (CUPS_BACKEND_FAILED); | |
833 | } | |
834 | ||
7e86f2f6 | 835 | if (!connect(fd, &(addr->addr.addr), (socklen_t)httpAddrLength(&(addr->addr)))) |
ef416fc2 | 836 | break; |
837 | ||
838 | error = errno; | |
839 | close(fd); | |
ef416fc2 | 840 | |
841 | if (addr->next) | |
842 | continue; | |
843 | ||
844 | if (getenv("CLASS") != NULL) | |
845 | { | |
846 | /* | |
847 | * If the CLASS environment variable is set, the job was submitted | |
848 | * to a class and not to a specific queue. In this case, we want | |
849 | * to abort immediately so that the job can be requeued on the next | |
850 | * available printer in the class. | |
851 | */ | |
852 | ||
0837b7e8 MS |
853 | _cupsLangPrintFilter(stderr, "INFO", |
854 | _("Unable to contact printer, queuing on next " | |
855 | "printer in class.")); | |
ef416fc2 | 856 | |
ef416fc2 | 857 | /* |
858 | * Sleep 5 seconds to keep the job from requeuing too rapidly... | |
859 | */ | |
860 | ||
861 | sleep(5); | |
862 | ||
863 | return (CUPS_BACKEND_FAILED); | |
864 | } | |
865 | ||
c7017ecc MS |
866 | fprintf(stderr, "DEBUG: Connection error: %s\n", strerror(error)); |
867 | ||
4cf66fef | 868 | if (errno == ECONNREFUSED || errno == EHOSTDOWN || errno == EHOSTUNREACH || errno == ETIMEDOUT || errno == ENOTCONN) |
ef416fc2 | 869 | { |
fa73b229 | 870 | if (contimeout && (time(NULL) - start_time) > contimeout) |
871 | { | |
0837b7e8 MS |
872 | _cupsLangPrintFilter(stderr, "ERROR", |
873 | _("The printer is not responding.")); | |
fa73b229 | 874 | return (CUPS_BACKEND_FAILED); |
875 | } | |
876 | ||
c7017ecc MS |
877 | switch (error) |
878 | { | |
879 | case EHOSTDOWN : | |
0837b7e8 | 880 | _cupsLangPrintFilter(stderr, "WARNING", |
22c9029b MS |
881 | _("The printer may not exist or " |
882 | "is unavailable at this time.")); | |
c7017ecc MS |
883 | break; |
884 | ||
885 | case EHOSTUNREACH : | |
4cf66fef | 886 | default : |
0837b7e8 | 887 | _cupsLangPrintFilter(stderr, "WARNING", |
22c9029b MS |
888 | _("The printer is unreachable at " |
889 | "this time.")); | |
c7017ecc MS |
890 | break; |
891 | ||
892 | case ECONNREFUSED : | |
0837b7e8 | 893 | _cupsLangPrintFilter(stderr, "WARNING", |
f3c17241 | 894 | _("The printer is in use.")); |
c7017ecc MS |
895 | break; |
896 | } | |
c0e1af83 | 897 | |
7e86f2f6 | 898 | sleep((unsigned)delay); |
c0e1af83 | 899 | |
900 | if (delay < 30) | |
901 | delay += 5; | |
ef416fc2 | 902 | } |
903 | else if (error == EADDRINUSE) | |
904 | { | |
905 | /* | |
906 | * Try on another port... | |
907 | */ | |
908 | ||
909 | sleep(1); | |
910 | } | |
911 | else | |
912 | { | |
0837b7e8 | 913 | _cupsLangPrintFilter(stderr, "ERROR", |
22c9029b | 914 | _("The printer is not responding.")); |
c0e1af83 | 915 | sleep(30); |
ef416fc2 | 916 | } |
917 | } | |
918 | ||
12f89d24 MS |
919 | /* |
920 | * Set the timeout... | |
921 | */ | |
922 | ||
923 | #ifdef WIN32 | |
924 | tv = (DWORD)(timeout * 1000); | |
925 | ||
926 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(tv)); | |
927 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv, sizeof(tv)); | |
928 | #else | |
929 | tv.tv_sec = timeout; | |
930 | tv.tv_usec = 0; | |
931 | ||
932 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)); | |
933 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv)); | |
934 | #endif /* WIN32 */ | |
935 | ||
757d2cad | 936 | fputs("STATE: -connecting-to-device\n", stderr); |
0837b7e8 | 937 | _cupsLangPrintFilter(stderr, "INFO", _("Connected to printer.")); |
26d47ec6 | 938 | |
22c9029b MS |
939 | fprintf(stderr, "DEBUG: Connected to %s:%d (local port %d)...\n", |
940 | httpAddrString(&(addr->addr), addrname, sizeof(addrname)), | |
a469f8a5 | 941 | httpAddrPort(&(addr->addr)), lport); |
ef416fc2 | 942 | |
7a14d768 MS |
943 | /* |
944 | * See if the printer supports SNMP... | |
945 | */ | |
946 | ||
c8fef167 MS |
947 | if (snmp_fd >= 0) |
948 | have_supplies = !backendSNMPSupplies(snmp_fd, &(addrlist->addr), NULL, | |
949 | NULL); | |
426c6a59 MS |
950 | else |
951 | have_supplies = 0; | |
7a14d768 MS |
952 | |
953 | /* | |
954 | * Check for side-channel requests... | |
955 | */ | |
956 | ||
c8fef167 | 957 | backendCheckSideChannel(snmp_fd, &(addrlist->addr)); |
7a14d768 | 958 | |
ef416fc2 | 959 | /* |
960 | * Next, open the print file and figure out its size... | |
961 | */ | |
962 | ||
f42414bf | 963 | if (print_fd) |
ef416fc2 | 964 | { |
c0e1af83 | 965 | /* |
966 | * Use the size from the print file... | |
967 | */ | |
968 | ||
f42414bf | 969 | if (fstat(print_fd, &filestats)) |
970 | { | |
f42414bf | 971 | close(fd); |
ef416fc2 | 972 | |
c7017ecc | 973 | perror("DEBUG: unable to stat print file"); |
f42414bf | 974 | return (CUPS_BACKEND_FAILED); |
975 | } | |
ef416fc2 | 976 | |
f42414bf | 977 | filestats.st_size *= manual_copies; |
ef416fc2 | 978 | } |
f42414bf | 979 | else |
c0e1af83 | 980 | { |
981 | /* | |
982 | * Use a "very large value" for the size so that the printer will | |
983 | * keep printing until we close the connection... | |
984 | */ | |
985 | ||
f42414bf | 986 | #ifdef _LARGEFILE_SOURCE |
987 | filestats.st_size = (size_t)(999999999999.0); | |
988 | #else | |
989 | filestats.st_size = 2147483647; | |
990 | #endif /* _LARGEFILE_SOURCE */ | |
c0e1af83 | 991 | } |
ef416fc2 | 992 | |
993 | /* | |
994 | * Send a job header to the printer, specifying no banner page and | |
995 | * literal output... | |
996 | */ | |
997 | ||
12f89d24 | 998 | if (lpd_command(fd, "\002%s\n", |
ef416fc2 | 999 | printer)) /* Receive print job(s) */ |
1000 | { | |
ef416fc2 | 1001 | close(fd); |
1002 | return (CUPS_BACKEND_FAILED); | |
1003 | } | |
1004 | ||
37e7e6e0 | 1005 | if (orighost && _cups_strcasecmp(orighost, "localhost")) |
3e7fe0ca MS |
1006 | strlcpy(localhost, orighost, sizeof(localhost)); |
1007 | else | |
1008 | httpGetHostname(NULL, localhost, sizeof(localhost)); | |
ef416fc2 | 1009 | |
1010 | snprintf(control, sizeof(control), | |
1011 | "H%.31s\n" /* RFC 1179, Section 7.2 - host name <= 31 chars */ | |
1012 | "P%.31s\n" /* RFC 1179, Section 7.2 - user name <= 31 chars */ | |
1013 | "J%.99s\n", /* RFC 1179, Section 7.2 - job name <= 99 chars */ | |
1014 | localhost, user, title); | |
1015 | cptr = control + strlen(control); | |
1016 | ||
1017 | if (banner) | |
1018 | { | |
7e86f2f6 | 1019 | snprintf(cptr, sizeof(control) - (size_t)(cptr - control), |
ef416fc2 | 1020 | "C%.31s\n" /* RFC 1179, Section 7.2 - class name <= 31 chars */ |
1021 | "L%s\n", | |
1022 | localhost, user); | |
1023 | cptr += strlen(cptr); | |
1024 | } | |
1025 | ||
1026 | while (copies > 0) | |
1027 | { | |
7e86f2f6 | 1028 | snprintf(cptr, sizeof(control) - (size_t)(cptr - control), "%cdfA%03d%.15s\n", |
ef416fc2 | 1029 | format, (int)getpid() % 1000, localhost); |
1030 | cptr += strlen(cptr); | |
1031 | copies --; | |
1032 | } | |
1033 | ||
7e86f2f6 | 1034 | snprintf(cptr, sizeof(control) - (size_t)(cptr - control), |
ef416fc2 | 1035 | "UdfA%03d%.15s\n" |
1036 | "N%.131s\n", /* RFC 1179, Section 7.2 - sourcefile name <= 131 chars */ | |
1037 | (int)getpid() % 1000, localhost, title); | |
1038 | ||
1039 | fprintf(stderr, "DEBUG: Control file is:\n%s", control); | |
1040 | ||
1041 | if (order == ORDER_CONTROL_DATA) | |
1042 | { | |
7a14d768 MS |
1043 | /* |
1044 | * Check for side-channel requests... | |
1045 | */ | |
1046 | ||
1047 | backendCheckSideChannel(snmp_fd, &(addr->addr)); | |
1048 | ||
1049 | /* | |
1050 | * Send the control file... | |
1051 | */ | |
1052 | ||
12f89d24 | 1053 | if (lpd_command(fd, "\002%d cfA%03.3d%.15s\n", strlen(control), |
ef416fc2 | 1054 | (int)getpid() % 1000, localhost)) |
1055 | { | |
ef416fc2 | 1056 | close(fd); |
1057 | ||
1058 | return (CUPS_BACKEND_FAILED); | |
1059 | } | |
1060 | ||
0837b7e8 MS |
1061 | fprintf(stderr, "DEBUG: Sending control file (%u bytes)\n", |
1062 | (unsigned)strlen(control)); | |
ef416fc2 | 1063 | |
7e86f2f6 | 1064 | if ((size_t)lpd_write(fd, control, strlen(control) + 1) < (strlen(control) + 1)) |
ef416fc2 | 1065 | { |
7e86f2f6 | 1066 | status = (char)errno; |
c7017ecc MS |
1067 | perror("DEBUG: Unable to write control file"); |
1068 | ||
ef416fc2 | 1069 | } |
1070 | else | |
1071 | { | |
ef416fc2 | 1072 | if (read(fd, &status, 1) < 1) |
1073 | { | |
0837b7e8 | 1074 | _cupsLangPrintFilter(stderr, "WARNING", |
f3c17241 | 1075 | _("The printer did not respond.")); |
7e86f2f6 | 1076 | status = (char)errno; |
ef416fc2 | 1077 | } |
ef416fc2 | 1078 | } |
1079 | ||
1080 | if (status != 0) | |
0837b7e8 MS |
1081 | _cupsLangPrintFilter(stderr, "ERROR", |
1082 | _("Remote host did not accept control file (%d)."), | |
1083 | status); | |
ef416fc2 | 1084 | else |
0837b7e8 MS |
1085 | _cupsLangPrintFilter(stderr, "INFO", |
1086 | _("Control file sent successfully.")); | |
ef416fc2 | 1087 | } |
1088 | else | |
1089 | status = 0; | |
1090 | ||
1091 | if (status == 0) | |
1092 | { | |
7a14d768 MS |
1093 | /* |
1094 | * Check for side-channel requests... | |
1095 | */ | |
1096 | ||
1097 | backendCheckSideChannel(snmp_fd, &(addr->addr)); | |
1098 | ||
ef416fc2 | 1099 | /* |
1100 | * Send the print file... | |
1101 | */ | |
1102 | ||
12f89d24 | 1103 | if (lpd_command(fd, "\003" CUPS_LLFMT " dfA%03.3d%.15s\n", |
ef416fc2 | 1104 | CUPS_LLCAST filestats.st_size, (int)getpid() % 1000, |
1105 | localhost)) | |
1106 | { | |
ef416fc2 | 1107 | close(fd); |
1108 | ||
1109 | return (CUPS_BACKEND_FAILED); | |
1110 | } | |
1111 | ||
0837b7e8 MS |
1112 | fprintf(stderr, "DEBUG: Sending data file (" CUPS_LLFMT " bytes)\n", |
1113 | CUPS_LLCAST filestats.st_size); | |
ef416fc2 | 1114 | |
1115 | tbytes = 0; | |
1116 | for (copy = 0; copy < manual_copies; copy ++) | |
1117 | { | |
f42414bf | 1118 | lseek(print_fd, 0, SEEK_SET); |
ef416fc2 | 1119 | |
f42414bf | 1120 | while ((nbytes = read(print_fd, buffer, sizeof(buffer))) > 0) |
ef416fc2 | 1121 | { |
0837b7e8 MS |
1122 | _cupsLangPrintFilter(stderr, "INFO", |
1123 | _("Spooling job, %.0f%% complete."), | |
1124 | 100.0 * tbytes / filestats.st_size); | |
ef416fc2 | 1125 | |
7e86f2f6 | 1126 | if (lpd_write(fd, buffer, (size_t)nbytes) < nbytes) |
ef416fc2 | 1127 | { |
c7017ecc | 1128 | perror("DEBUG: Unable to send print file to printer"); |
ef416fc2 | 1129 | break; |
1130 | } | |
1131 | else | |
1132 | tbytes += nbytes; | |
1133 | } | |
1134 | } | |
1135 | ||
f42414bf | 1136 | if (mode == MODE_STANDARD) |
ef416fc2 | 1137 | { |
f42414bf | 1138 | if (tbytes < filestats.st_size) |
7e86f2f6 | 1139 | status = (char)errno; |
f42414bf | 1140 | else if (lpd_write(fd, "", 1) < 1) |
1141 | { | |
c7017ecc | 1142 | perror("DEBUG: Unable to send trailing nul to printer"); |
7e86f2f6 | 1143 | status = (char)errno; |
f42414bf | 1144 | } |
1145 | else | |
1146 | { | |
1147 | /* | |
1148 | * Read the status byte from the printer; if we can't read the byte | |
1149 | * back now, we should set status to "errno", however at this point | |
1150 | * we know the printer got the whole file and we don't necessarily | |
1151 | * want to requeue it over and over... | |
1152 | */ | |
ef416fc2 | 1153 | |
f42414bf | 1154 | if (recv(fd, &status, 1, 0) < 1) |
1155 | { | |
0837b7e8 | 1156 | _cupsLangPrintFilter(stderr, "WARNING", |
f3c17241 | 1157 | _("The printer did not respond.")); |
f42414bf | 1158 | status = 0; |
1159 | } | |
f42414bf | 1160 | } |
ef416fc2 | 1161 | } |
f42414bf | 1162 | else |
1163 | status = 0; | |
ef416fc2 | 1164 | |
1165 | if (status != 0) | |
0837b7e8 MS |
1166 | _cupsLangPrintFilter(stderr, "ERROR", |
1167 | _("Remote host did not accept data file (%d)."), | |
1168 | status); | |
ef416fc2 | 1169 | else |
0837b7e8 MS |
1170 | _cupsLangPrintFilter(stderr, "INFO", |
1171 | _("Data file sent successfully.")); | |
ef416fc2 | 1172 | } |
1173 | ||
1174 | if (status == 0 && order == ORDER_DATA_CONTROL) | |
1175 | { | |
7a14d768 MS |
1176 | /* |
1177 | * Check for side-channel requests... | |
1178 | */ | |
1179 | ||
1180 | backendCheckSideChannel(snmp_fd, &(addr->addr)); | |
1181 | ||
1182 | /* | |
1183 | * Send control file... | |
1184 | */ | |
1185 | ||
12f89d24 | 1186 | if (lpd_command(fd, "\002%d cfA%03.3d%.15s\n", strlen(control), |
ef416fc2 | 1187 | (int)getpid() % 1000, localhost)) |
1188 | { | |
ef416fc2 | 1189 | close(fd); |
1190 | ||
1191 | return (CUPS_BACKEND_FAILED); | |
1192 | } | |
1193 | ||
0837b7e8 MS |
1194 | fprintf(stderr, "DEBUG: Sending control file (%lu bytes)\n", |
1195 | (unsigned long)strlen(control)); | |
ef416fc2 | 1196 | |
7e86f2f6 | 1197 | if ((size_t)lpd_write(fd, control, strlen(control) + 1) < (strlen(control) + 1)) |
ef416fc2 | 1198 | { |
7e86f2f6 | 1199 | status = (char)errno; |
c7017ecc | 1200 | perror("DEBUG: Unable to write control file"); |
ef416fc2 | 1201 | } |
1202 | else | |
1203 | { | |
ef416fc2 | 1204 | if (read(fd, &status, 1) < 1) |
1205 | { | |
0837b7e8 | 1206 | _cupsLangPrintFilter(stderr, "WARNING", |
f3c17241 | 1207 | _("The printer did not respond.")); |
7e86f2f6 | 1208 | status = (char)errno; |
ef416fc2 | 1209 | } |
ef416fc2 | 1210 | } |
1211 | ||
1212 | if (status != 0) | |
0837b7e8 MS |
1213 | _cupsLangPrintFilter(stderr, "ERROR", |
1214 | _("Remote host did not accept control file (%d)."), | |
1215 | status); | |
ef416fc2 | 1216 | else |
0837b7e8 MS |
1217 | _cupsLangPrintFilter(stderr, "INFO", |
1218 | _("Control file sent successfully.")); | |
ef416fc2 | 1219 | } |
1220 | ||
1e3e80bb | 1221 | fputs("STATE: +cups-waiting-for-job-completed\n", stderr); |
581dae2d | 1222 | |
7a14d768 | 1223 | /* |
52f6f666 | 1224 | * Collect the final supply levels as needed... |
7a14d768 MS |
1225 | */ |
1226 | ||
426c6a59 | 1227 | if (have_supplies) |
52f6f666 | 1228 | backendSNMPSupplies(snmp_fd, &(addr->addr), NULL, NULL); |
7a14d768 | 1229 | |
ef416fc2 | 1230 | /* |
1231 | * Close the socket connection and input file... | |
1232 | */ | |
1233 | ||
1234 | close(fd); | |
ef416fc2 | 1235 | |
1236 | if (status == 0) | |
ef416fc2 | 1237 | return (CUPS_BACKEND_OK); |
ef416fc2 | 1238 | |
1239 | /* | |
1240 | * Waiting for a retry... | |
1241 | */ | |
1242 | ||
1243 | sleep(30); | |
1244 | } | |
1245 | ||
ef416fc2 | 1246 | /* |
c8fef167 | 1247 | * If we get here, then the job has been canceled... |
ef416fc2 | 1248 | */ |
1249 | ||
1250 | return (CUPS_BACKEND_FAILED); | |
1251 | } | |
1252 | ||
1253 | ||
ef416fc2 | 1254 | /* |
1255 | * 'lpd_write()' - Write a buffer of data to an LPD server. | |
1256 | */ | |
1257 | ||
7e86f2f6 MS |
1258 | static ssize_t /* O - Number of bytes written or -1 on error */ |
1259 | lpd_write(int lpd_fd, /* I - LPD socket */ | |
1260 | char *buffer, /* I - Buffer to write */ | |
1261 | size_t length) /* I - Number of bytes to write */ | |
ef416fc2 | 1262 | { |
7e86f2f6 MS |
1263 | ssize_t bytes, /* Number of bytes written */ |
1264 | total; /* Total number of bytes written */ | |
ef416fc2 | 1265 | |
1266 | ||
1267 | if (abort_job) | |
1268 | return (-1); | |
1269 | ||
1270 | total = 0; | |
7e86f2f6 | 1271 | while ((bytes = send(lpd_fd, buffer, length - (size_t)total, 0)) >= 0) |
ef416fc2 | 1272 | { |
1273 | total += bytes; | |
1274 | buffer += bytes; | |
1275 | ||
7e86f2f6 | 1276 | if ((size_t)total == length) |
ef416fc2 | 1277 | break; |
1278 | } | |
1279 | ||
1280 | if (bytes < 0) | |
1281 | return (-1); | |
1282 | else | |
7e86f2f6 | 1283 | return (total); |
ef416fc2 | 1284 | } |
1285 | ||
1286 | ||
ef416fc2 | 1287 | /* |
1288 | * 'sigterm_handler()' - Handle 'terminate' signals that stop the backend. | |
1289 | */ | |
1290 | ||
1291 | static void | |
1292 | sigterm_handler(int sig) /* I - Signal */ | |
1293 | { | |
1294 | (void)sig; /* remove compiler warnings... */ | |
1295 | ||
1296 | abort_job = 1; | |
1297 | } |