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