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Commit | Line | Data |
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ef416fc2 | 1 | /* |
f2d18633 | 2 | * "$Id$" |
ef416fc2 | 3 | * |
581dae2d | 4 | * Line Printer Daemon backend for CUPS. |
ef416fc2 | 5 | * |
a6a4a2f5 | 6 | * Copyright 2007-2016 by Apple Inc. |
581dae2d | 7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 8 | * |
581dae2d MS |
9 | * These coded instructions, statements, and computer programs are the |
10 | * property of Apple Inc. and are protected by Federal copyright | |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * "LICENSE" which should have been included with this file. If this | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 14 | * |
581dae2d | 15 | * This file is subject to the Apple OS-Developed Software exception. |
ef416fc2 | 16 | */ |
17 | ||
18 | /* | |
19 | * Include necessary headers. | |
20 | */ | |
21 | ||
ef416fc2 | 22 | #include <cups/http-private.h> |
7a14d768 | 23 | #include "backend-private.h" |
ef416fc2 | 24 | #include <stdarg.h> |
ef416fc2 | 25 | #include <sys/types.h> |
26 | #include <sys/stat.h> | |
c7017ecc | 27 | #include <stdio.h> |
ef416fc2 | 28 | |
29 | #ifdef WIN32 | |
30 | # include <winsock.h> | |
31 | #else | |
32 | # include <sys/socket.h> | |
33 | # include <netinet/in.h> | |
34 | # include <arpa/inet.h> | |
35 | # include <netdb.h> | |
36 | #endif /* WIN32 */ | |
fa73b229 | 37 | #ifdef __APPLE__ |
38 | # include <CoreFoundation/CFNumber.h> | |
39 | # include <CoreFoundation/CFPreferences.h> | |
40 | #endif /* __APPLE__ */ | |
ef416fc2 | 41 | |
42 | ||
43 | /* | |
44 | * Globals... | |
45 | */ | |
46 | ||
47 | static char tmpfilename[1024] = ""; /* Temporary spool file name */ | |
48 | static int abort_job = 0; /* Non-zero if we get SIGTERM */ | |
49 | ||
50 | ||
f42414bf | 51 | /* |
52 | * Print mode... | |
53 | */ | |
54 | ||
55 | #define MODE_STANDARD 0 /* Queue a copy */ | |
56 | #define MODE_STREAM 1 /* Stream a copy */ | |
57 | ||
58 | ||
ef416fc2 | 59 | /* |
60 | * The order for control and data files in LPD requests... | |
61 | */ | |
62 | ||
63 | #define ORDER_CONTROL_DATA 0 /* Control file first, then data */ | |
64 | #define ORDER_DATA_CONTROL 1 /* Data file first, then control */ | |
65 | ||
66 | ||
67 | /* | |
68 | * What to reserve... | |
69 | */ | |
70 | ||
71 | #define RESERVE_NONE 0 /* Don't reserve a priviledged port */ | |
72 | #define RESERVE_RFC1179 1 /* Reserve port 721-731 */ | |
73 | #define RESERVE_ANY 2 /* Reserve port 1-1023 */ | |
74 | ||
75 | ||
76 | /* | |
77 | * Local functions... | |
78 | */ | |
79 | ||
a6a4a2f5 | 80 | static int cups_rresvport(int *port, int family); |
12f89d24 | 81 | static int lpd_command(int lpd_fd, char *format, ...); |
c8fef167 MS |
82 | static int lpd_queue(const char *hostname, http_addrlist_t *addrlist, |
83 | const char *printer, int print_fd, int snmp_fd, | |
84 | int mode, const char *user, const char *title, | |
85 | int copies, int banner, int format, int order, | |
86 | int reserve, int manual_copies, int timeout, | |
3e7fe0ca | 87 | int contimeout, const char *orighost); |
7e86f2f6 | 88 | static ssize_t lpd_write(int lpd_fd, char *buffer, size_t length); |
ef416fc2 | 89 | static void sigterm_handler(int sig); |
90 | ||
91 | ||
92 | /* | |
93 | * 'main()' - Send a file to the printer or server. | |
94 | * | |
95 | * Usage: | |
96 | * | |
97 | * printer-uri job-id user title copies options [file] | |
98 | */ | |
99 | ||
100 | int /* O - Exit status */ | |
101 | main(int argc, /* I - Number of command-line arguments (6 or 7) */ | |
102 | char *argv[]) /* I - Command-line arguments */ | |
103 | { | |
1f0275e3 | 104 | const char *device_uri; /* Device URI */ |
acb056cb | 105 | char scheme[255], /* Scheme in URI */ |
7a14d768 MS |
106 | hostname[1024], /* Hostname */ |
107 | username[255], /* Username info */ | |
108 | resource[1024], /* Resource info (printer name) */ | |
109 | *options, /* Pointer to options */ | |
110 | *name, /* Name of option */ | |
111 | *value, /* Value of option */ | |
112 | sep, /* Separator character */ | |
113 | *filename, /* File to print */ | |
114 | title[256]; /* Title string */ | |
115 | int port; /* Port number */ | |
c8fef167 MS |
116 | char portname[256]; /* Port name (string) */ |
117 | http_addrlist_t *addrlist; /* List of addresses for printer */ | |
5a9febac | 118 | int snmp_enabled = 1; /* Is SNMP enabled? */ |
c8fef167 | 119 | int snmp_fd; /* SNMP socket */ |
7a14d768 MS |
120 | int fd; /* Print file */ |
121 | int status; /* Status of LPD job */ | |
122 | int mode; /* Print mode */ | |
123 | int banner; /* Print banner page? */ | |
124 | int format; /* Print format */ | |
125 | int order; /* Order of control/data files */ | |
126 | int reserve; /* Reserve priviledged port? */ | |
127 | int sanitize_title; /* Sanitize title string? */ | |
128 | int manual_copies, /* Do manual copies? */ | |
129 | timeout, /* Timeout */ | |
130 | contimeout, /* Connection timeout */ | |
131 | copies; /* Number of copies */ | |
eac3a0a0 MS |
132 | ssize_t bytes = 0; /* Initial bytes read */ |
133 | char buffer[16384]; /* Initial print buffer */ | |
ef416fc2 | 134 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
7a14d768 | 135 | struct sigaction action; /* Actions for POSIX signals */ |
ef416fc2 | 136 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ |
3e7fe0ca MS |
137 | int num_jobopts; /* Number of job options */ |
138 | cups_option_t *jobopts = NULL; /* Job options */ | |
ef416fc2 | 139 | |
140 | ||
141 | /* | |
142 | * Make sure status messages are not buffered... | |
143 | */ | |
144 | ||
145 | setbuf(stderr, NULL); | |
146 | ||
147 | /* | |
148 | * Ignore SIGPIPE and catch SIGTERM signals... | |
149 | */ | |
150 | ||
151 | #ifdef HAVE_SIGSET | |
152 | sigset(SIGPIPE, SIG_IGN); | |
153 | sigset(SIGTERM, sigterm_handler); | |
154 | #elif defined(HAVE_SIGACTION) | |
155 | memset(&action, 0, sizeof(action)); | |
156 | action.sa_handler = SIG_IGN; | |
157 | sigaction(SIGPIPE, &action, NULL); | |
158 | ||
159 | sigemptyset(&action.sa_mask); | |
160 | sigaddset(&action.sa_mask, SIGTERM); | |
161 | action.sa_handler = sigterm_handler; | |
162 | sigaction(SIGTERM, &action, NULL); | |
163 | #else | |
164 | signal(SIGPIPE, SIG_IGN); | |
165 | signal(SIGTERM, sigterm_handler); | |
166 | #endif /* HAVE_SIGSET */ | |
167 | ||
168 | /* | |
169 | * Check command-line... | |
170 | */ | |
171 | ||
172 | if (argc == 1) | |
173 | { | |
8b450588 MS |
174 | printf("network lpd \"Unknown\" \"%s\"\n", |
175 | _cupsLangString(cupsLangDefault(), _("LPD/LPR Host or Printer"))); | |
ef416fc2 | 176 | return (CUPS_BACKEND_OK); |
177 | } | |
178 | else if (argc < 6 || argc > 7) | |
179 | { | |
db1f069b | 180 | _cupsLangPrintf(stderr, |
0837b7e8 | 181 | _("Usage: %s job-id user title copies options [file]"), |
db1f069b | 182 | argv[0]); |
ef416fc2 | 183 | return (CUPS_BACKEND_FAILED); |
184 | } | |
185 | ||
3e7fe0ca MS |
186 | num_jobopts = cupsParseOptions(argv[5], 0, &jobopts); |
187 | ||
ef416fc2 | 188 | /* |
189 | * Extract the hostname and printer name from the URI... | |
190 | */ | |
191 | ||
0268488e MS |
192 | while ((device_uri = cupsBackendDeviceURI(argv)) == NULL) |
193 | { | |
194 | _cupsLangPrintFilter(stderr, "INFO", _("Unable to locate printer.")); | |
195 | sleep(10); | |
196 | ||
197 | if (getenv("CLASS") != NULL) | |
198 | return (CUPS_BACKEND_FAILED); | |
199 | } | |
1f0275e3 | 200 | |
acb056cb MS |
201 | httpSeparateURI(HTTP_URI_CODING_ALL, device_uri, scheme, sizeof(scheme), |
202 | username, sizeof(username), hostname, sizeof(hostname), &port, | |
ef416fc2 | 203 | resource, sizeof(resource)); |
204 | ||
a41f09e2 MS |
205 | if (!port) |
206 | port = 515; /* Default to port 515 */ | |
207 | ||
ef416fc2 | 208 | if (!username[0]) |
209 | { | |
210 | /* | |
211 | * If no username is in the device URI, then use the print job user... | |
212 | */ | |
213 | ||
214 | strlcpy(username, argv[2], sizeof(username)); | |
215 | } | |
216 | ||
217 | /* | |
218 | * See if there are any options... | |
219 | */ | |
220 | ||
f42414bf | 221 | mode = MODE_STANDARD; |
fa73b229 | 222 | banner = 0; |
223 | format = 'l'; | |
224 | order = ORDER_CONTROL_DATA; | |
225 | reserve = RESERVE_ANY; | |
226 | manual_copies = 1; | |
227 | timeout = 300; | |
228 | contimeout = 7 * 24 * 60 * 60; | |
ef416fc2 | 229 | |
fa73b229 | 230 | #ifdef __APPLE__ |
c0e1af83 | 231 | /* |
0268488e | 232 | * We want to pass UTF-8 characters by default, not re-map them (3071945) |
c0e1af83 | 233 | */ |
234 | ||
fa73b229 | 235 | sanitize_title = 0; |
0268488e | 236 | #else |
c0e1af83 | 237 | /* |
0268488e | 238 | * Otherwise we want to re-map UTF-8 to "safe" characters by default... |
c0e1af83 | 239 | */ |
240 | ||
fa73b229 | 241 | sanitize_title = 1; |
242 | #endif /* __APPLE__ */ | |
ef416fc2 | 243 | |
244 | if ((options = strchr(resource, '?')) != NULL) | |
245 | { | |
246 | /* | |
247 | * Yup, terminate the device name string and move to the first | |
248 | * character of the options... | |
249 | */ | |
250 | ||
251 | *options++ = '\0'; | |
252 | ||
253 | /* | |
254 | * Parse options... | |
255 | */ | |
256 | ||
257 | while (*options) | |
258 | { | |
259 | /* | |
260 | * Get the name... | |
261 | */ | |
262 | ||
db1f069b | 263 | name = options; |
ef416fc2 | 264 | |
db1f069b MS |
265 | while (*options && *options != '=' && *options != '+' && *options != '&') |
266 | options ++; | |
267 | ||
268 | if ((sep = *options) != '\0') | |
269 | *options++ = '\0'; | |
270 | ||
271 | if (sep == '=') | |
ef416fc2 | 272 | { |
273 | /* | |
274 | * Get the value... | |
275 | */ | |
276 | ||
db1f069b | 277 | value = options; |
ef416fc2 | 278 | |
db1f069b | 279 | while (*options && *options != '+' && *options != '&') |
ef416fc2 | 280 | options ++; |
db1f069b MS |
281 | |
282 | if (*options) | |
283 | *options++ = '\0'; | |
ef416fc2 | 284 | } |
285 | else | |
db1f069b | 286 | value = (char *)""; |
ef416fc2 | 287 | |
288 | /* | |
289 | * Process the option... | |
290 | */ | |
291 | ||
88f9aafc | 292 | if (!_cups_strcasecmp(name, "banner")) |
ef416fc2 | 293 | { |
294 | /* | |
295 | * Set the banner... | |
296 | */ | |
297 | ||
88f9aafc MS |
298 | banner = !value[0] || !_cups_strcasecmp(value, "on") || |
299 | !_cups_strcasecmp(value, "yes") || !_cups_strcasecmp(value, "true"); | |
ef416fc2 | 300 | } |
88f9aafc | 301 | else if (!_cups_strcasecmp(name, "format") && value[0]) |
ef416fc2 | 302 | { |
303 | /* | |
304 | * Set output format... | |
305 | */ | |
306 | ||
fa73b229 | 307 | if (strchr("cdfglnoprtv", value[0])) |
ef416fc2 | 308 | format = value[0]; |
309 | else | |
0837b7e8 MS |
310 | _cupsLangPrintFilter(stderr, "ERROR", |
311 | _("Unknown format character: \"%c\"."), | |
312 | value[0]); | |
ef416fc2 | 313 | } |
88f9aafc | 314 | else if (!_cups_strcasecmp(name, "mode") && value[0]) |
f42414bf | 315 | { |
316 | /* | |
317 | * Set control/data order... | |
318 | */ | |
319 | ||
88f9aafc | 320 | if (!_cups_strcasecmp(value, "standard")) |
bc44d920 | 321 | mode = MODE_STANDARD; |
88f9aafc | 322 | else if (!_cups_strcasecmp(value, "stream")) |
bc44d920 | 323 | mode = MODE_STREAM; |
f42414bf | 324 | else |
0837b7e8 MS |
325 | _cupsLangPrintFilter(stderr, "ERROR", |
326 | _("Unknown print mode: \"%s\"."), value); | |
f42414bf | 327 | } |
88f9aafc | 328 | else if (!_cups_strcasecmp(name, "order") && value[0]) |
ef416fc2 | 329 | { |
330 | /* | |
331 | * Set control/data order... | |
332 | */ | |
333 | ||
88f9aafc | 334 | if (!_cups_strcasecmp(value, "control,data")) |
ef416fc2 | 335 | order = ORDER_CONTROL_DATA; |
88f9aafc | 336 | else if (!_cups_strcasecmp(value, "data,control")) |
ef416fc2 | 337 | order = ORDER_DATA_CONTROL; |
338 | else | |
0837b7e8 MS |
339 | _cupsLangPrintFilter(stderr, "ERROR", |
340 | _("Unknown file order: \"%s\"."), value); | |
ef416fc2 | 341 | } |
88f9aafc | 342 | else if (!_cups_strcasecmp(name, "reserve")) |
ef416fc2 | 343 | { |
344 | /* | |
345 | * Set port reservation mode... | |
346 | */ | |
347 | ||
88f9aafc | 348 | if (!value[0] || !_cups_strcasecmp(value, "on") || |
5a9febac MS |
349 | !_cups_strcasecmp(value, "yes") || |
350 | !_cups_strcasecmp(value, "true") || | |
88f9aafc | 351 | !_cups_strcasecmp(value, "rfc1179")) |
ef416fc2 | 352 | reserve = RESERVE_RFC1179; |
88f9aafc | 353 | else if (!_cups_strcasecmp(value, "any")) |
ef416fc2 | 354 | reserve = RESERVE_ANY; |
355 | else | |
356 | reserve = RESERVE_NONE; | |
357 | } | |
88f9aafc | 358 | else if (!_cups_strcasecmp(name, "manual_copies")) |
ef416fc2 | 359 | { |
360 | /* | |
361 | * Set manual copies... | |
362 | */ | |
363 | ||
88f9aafc | 364 | manual_copies = !value[0] || !_cups_strcasecmp(value, "on") || |
5a9febac MS |
365 | !_cups_strcasecmp(value, "yes") || |
366 | !_cups_strcasecmp(value, "true"); | |
ef416fc2 | 367 | } |
88f9aafc | 368 | else if (!_cups_strcasecmp(name, "sanitize_title")) |
ef416fc2 | 369 | { |
370 | /* | |
371 | * Set sanitize title... | |
372 | */ | |
373 | ||
88f9aafc | 374 | sanitize_title = !value[0] || !_cups_strcasecmp(value, "on") || |
5a9febac MS |
375 | !_cups_strcasecmp(value, "yes") || |
376 | !_cups_strcasecmp(value, "true"); | |
377 | } | |
378 | else if (!_cups_strcasecmp(name, "snmp")) | |
379 | { | |
380 | /* | |
381 | * Enable/disable SNMP stuff... | |
382 | */ | |
383 | ||
384 | snmp_enabled = !value[0] || !_cups_strcasecmp(value, "on") || | |
5a582409 MS |
385 | !_cups_strcasecmp(value, "yes") || |
386 | !_cups_strcasecmp(value, "true"); | |
ef416fc2 | 387 | } |
88f9aafc | 388 | else if (!_cups_strcasecmp(name, "timeout")) |
ef416fc2 | 389 | { |
390 | /* | |
391 | * Set the timeout... | |
392 | */ | |
393 | ||
394 | if (atoi(value) > 0) | |
395 | timeout = atoi(value); | |
396 | } | |
88f9aafc | 397 | else if (!_cups_strcasecmp(name, "contimeout")) |
fa73b229 | 398 | { |
399 | /* | |
c0e1af83 | 400 | * Set the connection timeout... |
fa73b229 | 401 | */ |
402 | ||
403 | if (atoi(value) > 0) | |
404 | contimeout = atoi(value); | |
405 | } | |
ef416fc2 | 406 | } |
407 | } | |
408 | ||
f42414bf | 409 | if (mode == MODE_STREAM) |
410 | order = ORDER_CONTROL_DATA; | |
411 | ||
c8fef167 MS |
412 | /* |
413 | * Find the printer... | |
414 | */ | |
415 | ||
416 | snprintf(portname, sizeof(portname), "%d", port); | |
417 | ||
418 | fputs("STATE: +connecting-to-device\n", stderr); | |
419 | fprintf(stderr, "DEBUG: Looking up \"%s\"...\n", hostname); | |
420 | ||
421 | while ((addrlist = httpAddrGetList(hostname, AF_UNSPEC, portname)) == NULL) | |
422 | { | |
423 | _cupsLangPrintFilter(stderr, "INFO", | |
424 | _("Unable to locate printer \"%s\"."), hostname); | |
425 | sleep(10); | |
426 | ||
427 | if (getenv("CLASS") != NULL) | |
428 | { | |
429 | fputs("STATE: -connecting-to-device\n", stderr); | |
430 | exit(CUPS_BACKEND_FAILED); | |
431 | } | |
432 | } | |
433 | ||
5a9febac MS |
434 | if (snmp_enabled) |
435 | snmp_fd = _cupsSNMPOpen(addrlist->addr.addr.sa_family); | |
436 | else | |
437 | snmp_fd = -1; | |
c8fef167 MS |
438 | |
439 | /* | |
440 | * Wait for data from the filter... | |
441 | */ | |
442 | ||
443 | if (argc == 6) | |
eac3a0a0 | 444 | { |
f14324a7 | 445 | if (!backendWaitLoop(snmp_fd, &(addrlist->addr), 0, backendNetworkSideCB)) |
c8fef167 | 446 | return (CUPS_BACKEND_OK); |
eac3a0a0 MS |
447 | else if (mode == MODE_STANDARD && |
448 | (bytes = read(0, buffer, sizeof(buffer))) <= 0) | |
449 | return (CUPS_BACKEND_OK); | |
450 | } | |
c8fef167 | 451 | |
f42414bf | 452 | /* |
453 | * If we have 7 arguments, print the file named on the command-line. | |
454 | * Otherwise, copy stdin to a temporary file and print the temporary | |
455 | * file. | |
456 | */ | |
457 | ||
458 | if (argc == 6 && mode == MODE_STANDARD) | |
459 | { | |
460 | /* | |
461 | * Copy stdin to a temporary file... | |
462 | */ | |
463 | ||
f42414bf | 464 | if ((fd = cupsTempFd(tmpfilename, sizeof(tmpfilename))) < 0) |
465 | { | |
c7017ecc | 466 | perror("DEBUG: Unable to create temporary file"); |
f42414bf | 467 | return (CUPS_BACKEND_FAILED); |
468 | } | |
469 | ||
0837b7e8 | 470 | _cupsLangPrintFilter(stderr, "INFO", _("Copying print data.")); |
8b116e60 | 471 | |
eac3a0a0 | 472 | if (bytes > 0) |
7e86f2f6 | 473 | write(fd, buffer, (size_t)bytes); |
eac3a0a0 MS |
474 | |
475 | backendRunLoop(-1, fd, snmp_fd, &(addrlist->addr), 0, 0, | |
ef55b745 | 476 | backendNetworkSideCB); |
f42414bf | 477 | } |
478 | else if (argc == 6) | |
479 | { | |
480 | /* | |
481 | * Stream from stdin... | |
482 | */ | |
483 | ||
484 | filename = NULL; | |
485 | fd = 0; | |
486 | } | |
487 | else | |
488 | { | |
489 | filename = argv[6]; | |
490 | fd = open(filename, O_RDONLY); | |
491 | ||
492 | if (fd == -1) | |
493 | { | |
0837b7e8 | 494 | _cupsLangPrintError("ERROR", _("Unable to open print file")); |
f42414bf | 495 | return (CUPS_BACKEND_FAILED); |
496 | } | |
497 | } | |
498 | ||
ef416fc2 | 499 | /* |
500 | * Sanitize the document title... | |
501 | */ | |
502 | ||
503 | strlcpy(title, argv[3], sizeof(title)); | |
504 | ||
505 | if (sanitize_title) | |
506 | { | |
507 | /* | |
508 | * Sanitize the title string so that we don't cause problems on | |
509 | * the remote end... | |
510 | */ | |
511 | ||
db1f069b MS |
512 | char *ptr; |
513 | ||
ef416fc2 | 514 | for (ptr = title; *ptr; ptr ++) |
515 | if (!isalnum(*ptr & 255) && !isspace(*ptr & 255)) | |
516 | *ptr = '_'; | |
517 | } | |
518 | ||
519 | /* | |
520 | * Queue the job... | |
521 | */ | |
522 | ||
523 | if (argc > 6) | |
524 | { | |
525 | if (manual_copies) | |
526 | { | |
527 | manual_copies = atoi(argv[4]); | |
528 | copies = 1; | |
529 | } | |
530 | else | |
531 | { | |
532 | manual_copies = 1; | |
533 | copies = atoi(argv[4]); | |
534 | } | |
535 | ||
c8fef167 MS |
536 | status = lpd_queue(hostname, addrlist, resource + 1, fd, snmp_fd, mode, |
537 | username, title, copies, banner, format, order, reserve, | |
3e7fe0ca MS |
538 | manual_copies, timeout, contimeout, |
539 | cupsGetOption("job-originating-host-name", num_jobopts, | |
540 | jobopts)); | |
ef416fc2 | 541 | |
542 | if (!status) | |
543 | fprintf(stderr, "PAGE: 1 %d\n", atoi(argv[4])); | |
544 | } | |
545 | else | |
c8fef167 MS |
546 | status = lpd_queue(hostname, addrlist, resource + 1, fd, snmp_fd, mode, |
547 | username, title, 1, banner, format, order, reserve, 1, | |
3e7fe0ca MS |
548 | timeout, contimeout, |
549 | cupsGetOption("job-originating-host-name", num_jobopts, | |
550 | jobopts)); | |
ef416fc2 | 551 | |
552 | /* | |
553 | * Remove the temporary file if necessary... | |
554 | */ | |
555 | ||
556 | if (tmpfilename[0]) | |
557 | unlink(tmpfilename); | |
558 | ||
f42414bf | 559 | if (fd) |
560 | close(fd); | |
561 | ||
c8fef167 MS |
562 | if (snmp_fd >= 0) |
563 | _cupsSNMPClose(snmp_fd); | |
564 | ||
ef416fc2 | 565 | /* |
566 | * Return the queue status... | |
567 | */ | |
568 | ||
569 | return (status); | |
570 | } | |
571 | ||
572 | ||
a6a4a2f5 MS |
573 | /* |
574 | * 'cups_rresvport()' - A simple implementation of rresvport_af(). | |
575 | */ | |
576 | ||
577 | static int /* O - Socket or -1 on error */ | |
578 | cups_rresvport(int *port, /* IO - Port number to bind to */ | |
579 | int family) /* I - Address family */ | |
580 | { | |
581 | http_addr_t addr; /* Socket address */ | |
582 | int fd; /* Socket file descriptor */ | |
583 | ||
584 | ||
585 | /* | |
586 | * Try to create an IPv4 socket... | |
587 | */ | |
588 | ||
589 | if ((fd = socket(family, SOCK_STREAM, 0)) < 0) | |
590 | return (-1); | |
591 | ||
592 | /* | |
593 | * Initialize the address buffer... | |
594 | */ | |
595 | ||
596 | memset(&addr, 0, sizeof(addr)); | |
79d3cd17 | 597 | addr.addr.sa_family = (sa_family_t)family; |
a6a4a2f5 MS |
598 | |
599 | /* | |
600 | * Try to bind the socket to a reserved port... | |
601 | */ | |
602 | ||
603 | while (*port > 511) | |
604 | { | |
605 | /* | |
606 | * Set the port number... | |
607 | */ | |
608 | ||
609 | _httpAddrSetPort(&addr, *port); | |
610 | ||
611 | /* | |
612 | * Try binding the port to the socket; return if all is OK... | |
613 | */ | |
614 | ||
615 | if (!bind(fd, (struct sockaddr *)&addr, (socklen_t)httpAddrLength(&addr))) | |
616 | return (fd); | |
617 | ||
618 | /* | |
619 | * Stop if we have any error other than "address already in use"... | |
620 | */ | |
621 | ||
622 | if (errno != EADDRINUSE) | |
623 | { | |
624 | httpAddrClose(NULL, fd); | |
625 | ||
626 | return (-1); | |
627 | } | |
628 | ||
629 | /* | |
630 | * Try the next port... | |
631 | */ | |
632 | ||
633 | (*port)--; | |
634 | } | |
635 | ||
636 | /* | |
637 | * Wasn't able to bind to a reserved port, so close the socket and return | |
638 | * -1... | |
639 | */ | |
640 | ||
641 | #ifdef WIN32 | |
642 | closesocket(fd); | |
643 | #else | |
644 | close(fd); | |
645 | #endif /* WIN32 */ | |
646 | ||
647 | return (-1); | |
648 | } | |
649 | ||
650 | ||
ef416fc2 | 651 | /* |
652 | * 'lpd_command()' - Send an LPR command sequence and wait for a reply. | |
653 | */ | |
654 | ||
655 | static int /* O - Status of command */ | |
656 | lpd_command(int fd, /* I - Socket connection to LPD host */ | |
ef416fc2 | 657 | char *format, /* I - printf()-style format string */ |
658 | ...) /* I - Additional args as necessary */ | |
659 | { | |
660 | va_list ap; /* Argument pointer */ | |
661 | char buf[1024]; /* Output buffer */ | |
7e86f2f6 | 662 | ssize_t bytes; /* Number of bytes to output */ |
ef416fc2 | 663 | char status; /* Status from command */ |
664 | ||
665 | ||
666 | /* | |
c8fef167 | 667 | * Don't try to send commands if the job has been canceled... |
ef416fc2 | 668 | */ |
669 | ||
670 | if (abort_job) | |
671 | return (-1); | |
672 | ||
673 | /* | |
674 | * Format the string... | |
675 | */ | |
676 | ||
677 | va_start(ap, format); | |
678 | bytes = vsnprintf(buf, sizeof(buf), format, ap); | |
679 | va_end(ap); | |
680 | ||
681 | fprintf(stderr, "DEBUG: lpd_command %2.2x %s", buf[0], buf + 1); | |
682 | ||
683 | /* | |
684 | * Send the command... | |
685 | */ | |
686 | ||
7e86f2f6 | 687 | fprintf(stderr, "DEBUG: Sending command string (" CUPS_LLFMT " bytes)...\n", CUPS_LLCAST bytes); |
ef416fc2 | 688 | |
7e86f2f6 | 689 | if (lpd_write(fd, buf, (size_t)bytes) < bytes) |
ef416fc2 | 690 | { |
c7017ecc | 691 | perror("DEBUG: Unable to send LPD command"); |
ef416fc2 | 692 | return (-1); |
693 | } | |
694 | ||
695 | /* | |
696 | * Read back the status from the command and return it... | |
697 | */ | |
698 | ||
c0e1af83 | 699 | fputs("DEBUG: Reading command status...\n", stderr); |
ef416fc2 | 700 | |
ef416fc2 | 701 | if (recv(fd, &status, 1, 0) < 1) |
702 | { | |
f3c17241 | 703 | _cupsLangPrintFilter(stderr, "WARNING", _("The printer did not respond.")); |
7e86f2f6 | 704 | status = (char)errno; |
ef416fc2 | 705 | } |
706 | ||
ef416fc2 | 707 | fprintf(stderr, "DEBUG: lpd_command returning %d\n", status); |
708 | ||
709 | return (status); | |
710 | } | |
711 | ||
712 | ||
713 | /* | |
714 | * 'lpd_queue()' - Queue a file using the Line Printer Daemon protocol. | |
715 | */ | |
716 | ||
717 | static int /* O - Zero on success, non-zero on failure */ | |
c8fef167 MS |
718 | lpd_queue(const char *hostname, /* I - Host to connect to */ |
719 | http_addrlist_t *addrlist, /* I - List of host addresses */ | |
720 | const char *printer, /* I - Printer/queue name */ | |
721 | int print_fd, /* I - File to print */ | |
722 | int snmp_fd, /* I - SNMP socket */ | |
723 | int mode, /* I - Print mode */ | |
724 | const char *user, /* I - Requesting user */ | |
725 | const char *title, /* I - Job title */ | |
726 | int copies, /* I - Number of copies */ | |
727 | int banner, /* I - Print LPD banner? */ | |
728 | int format, /* I - Format specifier */ | |
729 | int order, /* I - Order of data/control files */ | |
730 | int reserve, /* I - Reserve ports? */ | |
731 | int manual_copies,/* I - Do copies by hand... */ | |
732 | int timeout, /* I - Timeout... */ | |
3e7fe0ca MS |
733 | int contimeout, /* I - Connection timeout */ |
734 | const char *orighost) /* I - job-originating-host-name */ | |
ef416fc2 | 735 | { |
ef416fc2 | 736 | char localhost[255]; /* Local host name */ |
737 | int error; /* Error number */ | |
738 | struct stat filestats; /* File statistics */ | |
739 | int lport; /* LPD connection local port */ | |
740 | int fd; /* LPD socket */ | |
741 | char control[10240], /* LPD control 'file' */ | |
742 | *cptr; /* Pointer into control file string */ | |
743 | char status; /* Status byte from command */ | |
c0e1af83 | 744 | int delay; /* Delay for retries... */ |
26d47ec6 | 745 | char addrname[256]; /* Address name */ |
c8fef167 MS |
746 | http_addrlist_t *addr; /* Socket address */ |
747 | int have_supplies; /* Printer supports supply levels? */ | |
ef416fc2 | 748 | int copy; /* Copies written */ |
fa73b229 | 749 | time_t start_time; /* Time of first connect */ |
7e86f2f6 | 750 | ssize_t nbytes; /* Number of bytes written */ |
ef416fc2 | 751 | off_t tbytes; /* Total bytes written */ |
a74454a7 | 752 | char buffer[32768]; /* Output buffer */ |
12f89d24 MS |
753 | #ifdef WIN32 |
754 | DWORD tv; /* Timeout in milliseconds */ | |
ef416fc2 | 755 | #else |
12f89d24 MS |
756 | struct timeval tv; /* Timeout in secs and usecs */ |
757 | #endif /* WIN32 */ | |
758 | ||
ef416fc2 | 759 | |
fa73b229 | 760 | /* |
c0e1af83 | 761 | * Remember when we started trying to connect to the printer... |
fa73b229 | 762 | */ |
763 | ||
4d301e69 | 764 | start_time = time(NULL); |
fa73b229 | 765 | |
ef416fc2 | 766 | /* |
767 | * Loop forever trying to print the file... | |
768 | */ | |
769 | ||
770 | while (!abort_job) | |
771 | { | |
772 | /* | |
773 | * First try to reserve a port for this connection... | |
774 | */ | |
775 | ||
acb056cb | 776 | fprintf(stderr, "DEBUG: Connecting to %s:%d for printer %s\n", hostname, |
a469f8a5 | 777 | httpAddrPort(&(addrlist->addr)), printer); |
0837b7e8 | 778 | _cupsLangPrintFilter(stderr, "INFO", _("Connecting to printer.")); |
ef416fc2 | 779 | |
c0e1af83 | 780 | for (lport = reserve == RESERVE_RFC1179 ? 732 : 1024, addr = addrlist, |
781 | delay = 5;; | |
ef416fc2 | 782 | addr = addr->next) |
783 | { | |
784 | /* | |
c8fef167 | 785 | * Stop if this job has been canceled... |
ef416fc2 | 786 | */ |
787 | ||
788 | if (abort_job) | |
ef416fc2 | 789 | return (CUPS_BACKEND_FAILED); |
ef416fc2 | 790 | |
791 | /* | |
792 | * Choose the next priviledged port... | |
793 | */ | |
794 | ||
795 | if (!addr) | |
796 | addr = addrlist; | |
797 | ||
798 | lport --; | |
799 | ||
800 | if (lport < 721 && reserve == RESERVE_RFC1179) | |
801 | lport = 731; | |
802 | else if (lport < 1) | |
803 | lport = 1023; | |
804 | ||
805 | #ifdef HAVE_GETEUID | |
806 | if (geteuid() || !reserve) | |
807 | #else | |
808 | if (getuid() || !reserve) | |
809 | #endif /* HAVE_GETEUID */ | |
810 | { | |
811 | /* | |
812 | * Just create a regular socket... | |
813 | */ | |
814 | ||
815 | if ((fd = socket(addr->addr.addr.sa_family, SOCK_STREAM, 0)) < 0) | |
816 | { | |
c7017ecc | 817 | perror("DEBUG: Unable to create socket"); |
ef416fc2 | 818 | sleep(1); |
819 | ||
820 | continue; | |
821 | } | |
822 | ||
823 | lport = 0; | |
824 | } | |
825 | else | |
826 | { | |
827 | /* | |
828 | * We're running as root and want to comply with RFC 1179. Reserve a | |
829 | * priviledged lport between 721 and 731... | |
830 | */ | |
831 | ||
a6a4a2f5 | 832 | if ((fd = cups_rresvport(&lport, addr->addr.addr.sa_family)) < 0) |
ef416fc2 | 833 | { |
c7017ecc | 834 | perror("DEBUG: Unable to reserve port"); |
ef416fc2 | 835 | sleep(1); |
836 | ||
837 | continue; | |
838 | } | |
839 | } | |
840 | ||
841 | /* | |
842 | * Connect to the printer or server... | |
843 | */ | |
844 | ||
845 | if (abort_job) | |
846 | { | |
ef416fc2 | 847 | close(fd); |
848 | ||
849 | return (CUPS_BACKEND_FAILED); | |
850 | } | |
851 | ||
7e86f2f6 | 852 | if (!connect(fd, &(addr->addr.addr), (socklen_t)httpAddrLength(&(addr->addr)))) |
ef416fc2 | 853 | break; |
854 | ||
855 | error = errno; | |
856 | close(fd); | |
ef416fc2 | 857 | |
858 | if (addr->next) | |
859 | continue; | |
860 | ||
861 | if (getenv("CLASS") != NULL) | |
862 | { | |
863 | /* | |
864 | * If the CLASS environment variable is set, the job was submitted | |
865 | * to a class and not to a specific queue. In this case, we want | |
866 | * to abort immediately so that the job can be requeued on the next | |
867 | * available printer in the class. | |
868 | */ | |
869 | ||
0837b7e8 MS |
870 | _cupsLangPrintFilter(stderr, "INFO", |
871 | _("Unable to contact printer, queuing on next " | |
872 | "printer in class.")); | |
ef416fc2 | 873 | |
ef416fc2 | 874 | /* |
875 | * Sleep 5 seconds to keep the job from requeuing too rapidly... | |
876 | */ | |
877 | ||
878 | sleep(5); | |
879 | ||
880 | return (CUPS_BACKEND_FAILED); | |
881 | } | |
882 | ||
c7017ecc MS |
883 | fprintf(stderr, "DEBUG: Connection error: %s\n", strerror(error)); |
884 | ||
ef416fc2 | 885 | if (error == ECONNREFUSED || error == EHOSTDOWN || |
886 | error == EHOSTUNREACH) | |
887 | { | |
fa73b229 | 888 | if (contimeout && (time(NULL) - start_time) > contimeout) |
889 | { | |
0837b7e8 MS |
890 | _cupsLangPrintFilter(stderr, "ERROR", |
891 | _("The printer is not responding.")); | |
fa73b229 | 892 | return (CUPS_BACKEND_FAILED); |
893 | } | |
894 | ||
c7017ecc MS |
895 | switch (error) |
896 | { | |
897 | case EHOSTDOWN : | |
0837b7e8 | 898 | _cupsLangPrintFilter(stderr, "WARNING", |
22c9029b MS |
899 | _("The printer may not exist or " |
900 | "is unavailable at this time.")); | |
c7017ecc MS |
901 | break; |
902 | ||
903 | case EHOSTUNREACH : | |
0837b7e8 | 904 | _cupsLangPrintFilter(stderr, "WARNING", |
22c9029b MS |
905 | _("The printer is unreachable at " |
906 | "this time.")); | |
c7017ecc MS |
907 | break; |
908 | ||
909 | case ECONNREFUSED : | |
910 | default : | |
0837b7e8 | 911 | _cupsLangPrintFilter(stderr, "WARNING", |
f3c17241 | 912 | _("The printer is in use.")); |
c7017ecc MS |
913 | break; |
914 | } | |
c0e1af83 | 915 | |
7e86f2f6 | 916 | sleep((unsigned)delay); |
c0e1af83 | 917 | |
918 | if (delay < 30) | |
919 | delay += 5; | |
ef416fc2 | 920 | } |
921 | else if (error == EADDRINUSE) | |
922 | { | |
923 | /* | |
924 | * Try on another port... | |
925 | */ | |
926 | ||
927 | sleep(1); | |
928 | } | |
929 | else | |
930 | { | |
0837b7e8 | 931 | _cupsLangPrintFilter(stderr, "ERROR", |
22c9029b | 932 | _("The printer is not responding.")); |
c0e1af83 | 933 | sleep(30); |
ef416fc2 | 934 | } |
935 | } | |
936 | ||
12f89d24 MS |
937 | /* |
938 | * Set the timeout... | |
939 | */ | |
940 | ||
941 | #ifdef WIN32 | |
942 | tv = (DWORD)(timeout * 1000); | |
943 | ||
944 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(tv)); | |
945 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv, sizeof(tv)); | |
946 | #else | |
947 | tv.tv_sec = timeout; | |
948 | tv.tv_usec = 0; | |
949 | ||
950 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)); | |
951 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv)); | |
952 | #endif /* WIN32 */ | |
953 | ||
757d2cad | 954 | fputs("STATE: -connecting-to-device\n", stderr); |
0837b7e8 | 955 | _cupsLangPrintFilter(stderr, "INFO", _("Connected to printer.")); |
26d47ec6 | 956 | |
22c9029b MS |
957 | fprintf(stderr, "DEBUG: Connected to %s:%d (local port %d)...\n", |
958 | httpAddrString(&(addr->addr), addrname, sizeof(addrname)), | |
a469f8a5 | 959 | httpAddrPort(&(addr->addr)), lport); |
ef416fc2 | 960 | |
7a14d768 MS |
961 | /* |
962 | * See if the printer supports SNMP... | |
963 | */ | |
964 | ||
c8fef167 MS |
965 | if (snmp_fd >= 0) |
966 | have_supplies = !backendSNMPSupplies(snmp_fd, &(addrlist->addr), NULL, | |
967 | NULL); | |
426c6a59 MS |
968 | else |
969 | have_supplies = 0; | |
7a14d768 MS |
970 | |
971 | /* | |
972 | * Check for side-channel requests... | |
973 | */ | |
974 | ||
c8fef167 | 975 | backendCheckSideChannel(snmp_fd, &(addrlist->addr)); |
7a14d768 | 976 | |
ef416fc2 | 977 | /* |
978 | * Next, open the print file and figure out its size... | |
979 | */ | |
980 | ||
f42414bf | 981 | if (print_fd) |
ef416fc2 | 982 | { |
c0e1af83 | 983 | /* |
984 | * Use the size from the print file... | |
985 | */ | |
986 | ||
f42414bf | 987 | if (fstat(print_fd, &filestats)) |
988 | { | |
f42414bf | 989 | close(fd); |
ef416fc2 | 990 | |
c7017ecc | 991 | perror("DEBUG: unable to stat print file"); |
f42414bf | 992 | return (CUPS_BACKEND_FAILED); |
993 | } | |
ef416fc2 | 994 | |
f42414bf | 995 | filestats.st_size *= manual_copies; |
ef416fc2 | 996 | } |
f42414bf | 997 | else |
c0e1af83 | 998 | { |
999 | /* | |
1000 | * Use a "very large value" for the size so that the printer will | |
1001 | * keep printing until we close the connection... | |
1002 | */ | |
1003 | ||
f42414bf | 1004 | #ifdef _LARGEFILE_SOURCE |
1005 | filestats.st_size = (size_t)(999999999999.0); | |
1006 | #else | |
1007 | filestats.st_size = 2147483647; | |
1008 | #endif /* _LARGEFILE_SOURCE */ | |
c0e1af83 | 1009 | } |
ef416fc2 | 1010 | |
1011 | /* | |
1012 | * Send a job header to the printer, specifying no banner page and | |
1013 | * literal output... | |
1014 | */ | |
1015 | ||
12f89d24 | 1016 | if (lpd_command(fd, "\002%s\n", |
ef416fc2 | 1017 | printer)) /* Receive print job(s) */ |
1018 | { | |
ef416fc2 | 1019 | close(fd); |
1020 | return (CUPS_BACKEND_FAILED); | |
1021 | } | |
1022 | ||
37e7e6e0 | 1023 | if (orighost && _cups_strcasecmp(orighost, "localhost")) |
3e7fe0ca MS |
1024 | strlcpy(localhost, orighost, sizeof(localhost)); |
1025 | else | |
1026 | httpGetHostname(NULL, localhost, sizeof(localhost)); | |
ef416fc2 | 1027 | |
1028 | snprintf(control, sizeof(control), | |
1029 | "H%.31s\n" /* RFC 1179, Section 7.2 - host name <= 31 chars */ | |
1030 | "P%.31s\n" /* RFC 1179, Section 7.2 - user name <= 31 chars */ | |
1031 | "J%.99s\n", /* RFC 1179, Section 7.2 - job name <= 99 chars */ | |
1032 | localhost, user, title); | |
1033 | cptr = control + strlen(control); | |
1034 | ||
1035 | if (banner) | |
1036 | { | |
7e86f2f6 | 1037 | snprintf(cptr, sizeof(control) - (size_t)(cptr - control), |
ef416fc2 | 1038 | "C%.31s\n" /* RFC 1179, Section 7.2 - class name <= 31 chars */ |
1039 | "L%s\n", | |
1040 | localhost, user); | |
1041 | cptr += strlen(cptr); | |
1042 | } | |
1043 | ||
1044 | while (copies > 0) | |
1045 | { | |
7e86f2f6 | 1046 | snprintf(cptr, sizeof(control) - (size_t)(cptr - control), "%cdfA%03d%.15s\n", |
ef416fc2 | 1047 | format, (int)getpid() % 1000, localhost); |
1048 | cptr += strlen(cptr); | |
1049 | copies --; | |
1050 | } | |
1051 | ||
7e86f2f6 | 1052 | snprintf(cptr, sizeof(control) - (size_t)(cptr - control), |
ef416fc2 | 1053 | "UdfA%03d%.15s\n" |
1054 | "N%.131s\n", /* RFC 1179, Section 7.2 - sourcefile name <= 131 chars */ | |
1055 | (int)getpid() % 1000, localhost, title); | |
1056 | ||
1057 | fprintf(stderr, "DEBUG: Control file is:\n%s", control); | |
1058 | ||
1059 | if (order == ORDER_CONTROL_DATA) | |
1060 | { | |
7a14d768 MS |
1061 | /* |
1062 | * Check for side-channel requests... | |
1063 | */ | |
1064 | ||
1065 | backendCheckSideChannel(snmp_fd, &(addr->addr)); | |
1066 | ||
1067 | /* | |
1068 | * Send the control file... | |
1069 | */ | |
1070 | ||
12f89d24 | 1071 | if (lpd_command(fd, "\002%d cfA%03.3d%.15s\n", strlen(control), |
ef416fc2 | 1072 | (int)getpid() % 1000, localhost)) |
1073 | { | |
ef416fc2 | 1074 | close(fd); |
1075 | ||
1076 | return (CUPS_BACKEND_FAILED); | |
1077 | } | |
1078 | ||
0837b7e8 MS |
1079 | fprintf(stderr, "DEBUG: Sending control file (%u bytes)\n", |
1080 | (unsigned)strlen(control)); | |
ef416fc2 | 1081 | |
7e86f2f6 | 1082 | if ((size_t)lpd_write(fd, control, strlen(control) + 1) < (strlen(control) + 1)) |
ef416fc2 | 1083 | { |
7e86f2f6 | 1084 | status = (char)errno; |
c7017ecc MS |
1085 | perror("DEBUG: Unable to write control file"); |
1086 | ||
ef416fc2 | 1087 | } |
1088 | else | |
1089 | { | |
ef416fc2 | 1090 | if (read(fd, &status, 1) < 1) |
1091 | { | |
0837b7e8 | 1092 | _cupsLangPrintFilter(stderr, "WARNING", |
f3c17241 | 1093 | _("The printer did not respond.")); |
7e86f2f6 | 1094 | status = (char)errno; |
ef416fc2 | 1095 | } |
ef416fc2 | 1096 | } |
1097 | ||
1098 | if (status != 0) | |
0837b7e8 MS |
1099 | _cupsLangPrintFilter(stderr, "ERROR", |
1100 | _("Remote host did not accept control file (%d)."), | |
1101 | status); | |
ef416fc2 | 1102 | else |
0837b7e8 MS |
1103 | _cupsLangPrintFilter(stderr, "INFO", |
1104 | _("Control file sent successfully.")); | |
ef416fc2 | 1105 | } |
1106 | else | |
1107 | status = 0; | |
1108 | ||
1109 | if (status == 0) | |
1110 | { | |
7a14d768 MS |
1111 | /* |
1112 | * Check for side-channel requests... | |
1113 | */ | |
1114 | ||
1115 | backendCheckSideChannel(snmp_fd, &(addr->addr)); | |
1116 | ||
ef416fc2 | 1117 | /* |
1118 | * Send the print file... | |
1119 | */ | |
1120 | ||
12f89d24 | 1121 | if (lpd_command(fd, "\003" CUPS_LLFMT " dfA%03.3d%.15s\n", |
ef416fc2 | 1122 | CUPS_LLCAST filestats.st_size, (int)getpid() % 1000, |
1123 | localhost)) | |
1124 | { | |
ef416fc2 | 1125 | close(fd); |
1126 | ||
1127 | return (CUPS_BACKEND_FAILED); | |
1128 | } | |
1129 | ||
0837b7e8 MS |
1130 | fprintf(stderr, "DEBUG: Sending data file (" CUPS_LLFMT " bytes)\n", |
1131 | CUPS_LLCAST filestats.st_size); | |
ef416fc2 | 1132 | |
1133 | tbytes = 0; | |
1134 | for (copy = 0; copy < manual_copies; copy ++) | |
1135 | { | |
f42414bf | 1136 | lseek(print_fd, 0, SEEK_SET); |
ef416fc2 | 1137 | |
f42414bf | 1138 | while ((nbytes = read(print_fd, buffer, sizeof(buffer))) > 0) |
ef416fc2 | 1139 | { |
0837b7e8 MS |
1140 | _cupsLangPrintFilter(stderr, "INFO", |
1141 | _("Spooling job, %.0f%% complete."), | |
1142 | 100.0 * tbytes / filestats.st_size); | |
ef416fc2 | 1143 | |
7e86f2f6 | 1144 | if (lpd_write(fd, buffer, (size_t)nbytes) < nbytes) |
ef416fc2 | 1145 | { |
c7017ecc | 1146 | perror("DEBUG: Unable to send print file to printer"); |
ef416fc2 | 1147 | break; |
1148 | } | |
1149 | else | |
1150 | tbytes += nbytes; | |
1151 | } | |
1152 | } | |
1153 | ||
f42414bf | 1154 | if (mode == MODE_STANDARD) |
ef416fc2 | 1155 | { |
f42414bf | 1156 | if (tbytes < filestats.st_size) |
7e86f2f6 | 1157 | status = (char)errno; |
f42414bf | 1158 | else if (lpd_write(fd, "", 1) < 1) |
1159 | { | |
c7017ecc | 1160 | perror("DEBUG: Unable to send trailing nul to printer"); |
7e86f2f6 | 1161 | status = (char)errno; |
f42414bf | 1162 | } |
1163 | else | |
1164 | { | |
1165 | /* | |
1166 | * Read the status byte from the printer; if we can't read the byte | |
1167 | * back now, we should set status to "errno", however at this point | |
1168 | * we know the printer got the whole file and we don't necessarily | |
1169 | * want to requeue it over and over... | |
1170 | */ | |
ef416fc2 | 1171 | |
f42414bf | 1172 | if (recv(fd, &status, 1, 0) < 1) |
1173 | { | |
0837b7e8 | 1174 | _cupsLangPrintFilter(stderr, "WARNING", |
f3c17241 | 1175 | _("The printer did not respond.")); |
f42414bf | 1176 | status = 0; |
1177 | } | |
f42414bf | 1178 | } |
ef416fc2 | 1179 | } |
f42414bf | 1180 | else |
1181 | status = 0; | |
ef416fc2 | 1182 | |
1183 | if (status != 0) | |
0837b7e8 MS |
1184 | _cupsLangPrintFilter(stderr, "ERROR", |
1185 | _("Remote host did not accept data file (%d)."), | |
1186 | status); | |
ef416fc2 | 1187 | else |
0837b7e8 MS |
1188 | _cupsLangPrintFilter(stderr, "INFO", |
1189 | _("Data file sent successfully.")); | |
ef416fc2 | 1190 | } |
1191 | ||
1192 | if (status == 0 && order == ORDER_DATA_CONTROL) | |
1193 | { | |
7a14d768 MS |
1194 | /* |
1195 | * Check for side-channel requests... | |
1196 | */ | |
1197 | ||
1198 | backendCheckSideChannel(snmp_fd, &(addr->addr)); | |
1199 | ||
1200 | /* | |
1201 | * Send control file... | |
1202 | */ | |
1203 | ||
12f89d24 | 1204 | if (lpd_command(fd, "\002%d cfA%03.3d%.15s\n", strlen(control), |
ef416fc2 | 1205 | (int)getpid() % 1000, localhost)) |
1206 | { | |
ef416fc2 | 1207 | close(fd); |
1208 | ||
1209 | return (CUPS_BACKEND_FAILED); | |
1210 | } | |
1211 | ||
0837b7e8 MS |
1212 | fprintf(stderr, "DEBUG: Sending control file (%lu bytes)\n", |
1213 | (unsigned long)strlen(control)); | |
ef416fc2 | 1214 | |
7e86f2f6 | 1215 | if ((size_t)lpd_write(fd, control, strlen(control) + 1) < (strlen(control) + 1)) |
ef416fc2 | 1216 | { |
7e86f2f6 | 1217 | status = (char)errno; |
c7017ecc | 1218 | perror("DEBUG: Unable to write control file"); |
ef416fc2 | 1219 | } |
1220 | else | |
1221 | { | |
ef416fc2 | 1222 | if (read(fd, &status, 1) < 1) |
1223 | { | |
0837b7e8 | 1224 | _cupsLangPrintFilter(stderr, "WARNING", |
f3c17241 | 1225 | _("The printer did not respond.")); |
7e86f2f6 | 1226 | status = (char)errno; |
ef416fc2 | 1227 | } |
ef416fc2 | 1228 | } |
1229 | ||
1230 | if (status != 0) | |
0837b7e8 MS |
1231 | _cupsLangPrintFilter(stderr, "ERROR", |
1232 | _("Remote host did not accept control file (%d)."), | |
1233 | status); | |
ef416fc2 | 1234 | else |
0837b7e8 MS |
1235 | _cupsLangPrintFilter(stderr, "INFO", |
1236 | _("Control file sent successfully.")); | |
ef416fc2 | 1237 | } |
1238 | ||
1e3e80bb | 1239 | fputs("STATE: +cups-waiting-for-job-completed\n", stderr); |
581dae2d | 1240 | |
7a14d768 | 1241 | /* |
52f6f666 | 1242 | * Collect the final supply levels as needed... |
7a14d768 MS |
1243 | */ |
1244 | ||
426c6a59 | 1245 | if (have_supplies) |
52f6f666 | 1246 | backendSNMPSupplies(snmp_fd, &(addr->addr), NULL, NULL); |
7a14d768 | 1247 | |
ef416fc2 | 1248 | /* |
1249 | * Close the socket connection and input file... | |
1250 | */ | |
1251 | ||
1252 | close(fd); | |
ef416fc2 | 1253 | |
1254 | if (status == 0) | |
ef416fc2 | 1255 | return (CUPS_BACKEND_OK); |
ef416fc2 | 1256 | |
1257 | /* | |
1258 | * Waiting for a retry... | |
1259 | */ | |
1260 | ||
1261 | sleep(30); | |
1262 | } | |
1263 | ||
ef416fc2 | 1264 | /* |
c8fef167 | 1265 | * If we get here, then the job has been canceled... |
ef416fc2 | 1266 | */ |
1267 | ||
1268 | return (CUPS_BACKEND_FAILED); | |
1269 | } | |
1270 | ||
1271 | ||
ef416fc2 | 1272 | /* |
1273 | * 'lpd_write()' - Write a buffer of data to an LPD server. | |
1274 | */ | |
1275 | ||
7e86f2f6 MS |
1276 | static ssize_t /* O - Number of bytes written or -1 on error */ |
1277 | lpd_write(int lpd_fd, /* I - LPD socket */ | |
1278 | char *buffer, /* I - Buffer to write */ | |
1279 | size_t length) /* I - Number of bytes to write */ | |
ef416fc2 | 1280 | { |
7e86f2f6 MS |
1281 | ssize_t bytes, /* Number of bytes written */ |
1282 | total; /* Total number of bytes written */ | |
ef416fc2 | 1283 | |
1284 | ||
1285 | if (abort_job) | |
1286 | return (-1); | |
1287 | ||
1288 | total = 0; | |
7e86f2f6 | 1289 | while ((bytes = send(lpd_fd, buffer, length - (size_t)total, 0)) >= 0) |
ef416fc2 | 1290 | { |
1291 | total += bytes; | |
1292 | buffer += bytes; | |
1293 | ||
7e86f2f6 | 1294 | if ((size_t)total == length) |
ef416fc2 | 1295 | break; |
1296 | } | |
1297 | ||
1298 | if (bytes < 0) | |
1299 | return (-1); | |
1300 | else | |
7e86f2f6 | 1301 | return (total); |
ef416fc2 | 1302 | } |
1303 | ||
1304 | ||
ef416fc2 | 1305 | /* |
1306 | * 'sigterm_handler()' - Handle 'terminate' signals that stop the backend. | |
1307 | */ | |
1308 | ||
1309 | static void | |
1310 | sigterm_handler(int sig) /* I - Signal */ | |
1311 | { | |
1312 | (void)sig; /* remove compiler warnings... */ | |
1313 | ||
1314 | abort_job = 1; | |
1315 | } | |
1316 | ||
1317 | ||
1318 | /* | |
f2d18633 | 1319 | * End of "$Id$". |
ef416fc2 | 1320 | */ |