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43e2fc22 | 1 | /* |
b2e10895 | 2 | * "$Id$" |
43e2fc22 | 3 | * |
e73c6c0a | 4 | * AppSocket backend for the Common UNIX Printing System (CUPS). |
43e2fc22 | 5 | * |
9fafda28 | 6 | * Copyright 2007-2009 by Apple Inc. |
761a542e | 7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
43e2fc22 | 8 | * |
9 | * These coded instructions, statements, and computer programs are the | |
4e8d321f | 10 | * property of Apple Inc. and are protected by Federal copyright |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
43e2fc22 | 12 | * "LICENSE" which should have been included with this file. If this |
4e8d321f | 13 | * file is missing or damaged, see the license at "http://www.cups.org/". |
43e2fc22 | 14 | * |
dab1a4d8 | 15 | * This file is subject to the Apple OS-Developed Software exception. |
16 | * | |
43e2fc22 | 17 | * Contents: |
18 | * | |
761a542e | 19 | * main() - Send a file to the printer or server. |
313509aa | 20 | * wait_bc() - Wait for back-channel data... |
43e2fc22 | 21 | */ |
22 | ||
23 | /* | |
24 | * Include necessary headers. | |
25 | */ | |
26 | ||
6ca34e4e | 27 | #include <cups/http-private.h> |
43b5ad0d | 28 | #include "backend-private.h" |
e73c6c0a | 29 | #include <stdarg.h> |
e73c6c0a | 30 | #include <sys/types.h> |
31 | #include <sys/stat.h> | |
32 | ||
c3026ddc | 33 | #ifdef WIN32 |
e73c6c0a | 34 | # include <winsock.h> |
35 | #else | |
267cf96a | 36 | # include <unistd.h> |
37 | # include <fcntl.h> | |
e73c6c0a | 38 | # include <sys/socket.h> |
39 | # include <netinet/in.h> | |
40 | # include <arpa/inet.h> | |
41 | # include <netdb.h> | |
c3026ddc | 42 | #endif /* WIN32 */ |
e73c6c0a | 43 | |
44 | ||
761a542e | 45 | /* |
46 | * Local functions... | |
47 | */ | |
48 | ||
313509aa | 49 | static int wait_bc(int device_fd, int secs); |
761a542e | 50 | |
51 | ||
e73c6c0a | 52 | /* |
53 | * 'main()' - Send a file to the printer or server. | |
54 | * | |
55 | * Usage: | |
56 | * | |
57 | * printer-uri job-id user title copies options [file] | |
58 | */ | |
59 | ||
5baa731f | 60 | int /* O - Exit status */ |
61 | main(int argc, /* I - Number of command-line arguments (6 or 7) */ | |
62 | char *argv[]) /* I - Command-line arguments */ | |
e73c6c0a | 63 | { |
cda2b561 | 64 | const char *device_uri; /* Device URI */ |
9fa9ba8f | 65 | char scheme[255], /* Scheme in URI */ |
5baa731f | 66 | hostname[1024], /* Hostname */ |
67 | username[255], /* Username info (not used) */ | |
41ed0c21 | 68 | resource[1024], /* Resource info (not used) */ |
69 | *options, /* Pointer to options */ | |
abd1f85f | 70 | *name, /* Name of option */ |
71 | *value, /* Value of option */ | |
72 | sep; /* Option separator */ | |
43b5ad0d | 73 | int print_fd; /* Print file */ |
5baa731f | 74 | int copies; /* Number of copies to print */ |
ef494175 | 75 | time_t start_time, /* Time of first connect */ |
8953a911 | 76 | current_time, /* Current time */ |
ef494175 | 77 | wait_time; /* Time to wait before shutting down socket */ |
ff0295f0 | 78 | int recoverable; /* Recoverable error shown? */ |
79 | int contimeout; /* Connection timeout */ | |
41ed0c21 | 80 | int waiteof; /* Wait for end-of-file? */ |
5baa731f | 81 | int port; /* Port number */ |
086c584d | 82 | char portname[255]; /* Port name */ |
5baa731f | 83 | int delay; /* Delay for retries... */ |
43b5ad0d | 84 | int device_fd; /* AppSocket */ |
5baa731f | 85 | int error; /* Error code (if any) */ |
a0c0bbe7 | 86 | http_addrlist_t *addrlist, /* Address list */ |
abd1f85f | 87 | *addr; /* Connected address */ |
a0c0bbe7 | 88 | char addrname[256]; /* Address name */ |
5ba153ab | 89 | int snmp_fd, /* SNMP socket */ |
90 | start_count, /* Page count via SNMP at start */ | |
6bffe4a6 | 91 | page_count, /* Page count via SNMP */ |
92 | have_supplies; /* Printer supports supply levels? */ | |
43b5ad0d | 93 | ssize_t tbytes; /* Total number of bytes written */ |
4ff40357 | 94 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
5baa731f | 95 | struct sigaction action; /* Actions for POSIX signals */ |
4ff40357 | 96 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ |
e73c6c0a | 97 | |
98 | ||
4b23f3b3 | 99 | /* |
100 | * Make sure status messages are not buffered... | |
101 | */ | |
102 | ||
103 | setbuf(stderr, NULL); | |
104 | ||
98904cd6 | 105 | /* |
106 | * Ignore SIGPIPE signals... | |
107 | */ | |
108 | ||
109 | #ifdef HAVE_SIGSET | |
110 | sigset(SIGPIPE, SIG_IGN); | |
111 | #elif defined(HAVE_SIGACTION) | |
112 | memset(&action, 0, sizeof(action)); | |
113 | action.sa_handler = SIG_IGN; | |
114 | sigaction(SIGPIPE, &action, NULL); | |
115 | #else | |
116 | signal(SIGPIPE, SIG_IGN); | |
117 | #endif /* HAVE_SIGSET */ | |
118 | ||
4b23f3b3 | 119 | /* |
120 | * Check command-line... | |
121 | */ | |
122 | ||
68edc300 | 123 | if (argc == 1) |
124 | { | |
3037604c | 125 | printf("network socket \"Unknown\" \"%s\"\n", |
126 | _cupsLangString(cupsLangDefault(), _("AppSocket/HP JetDirect"))); | |
6248387b | 127 | return (CUPS_BACKEND_OK); |
68edc300 | 128 | } |
129 | else if (argc < 6 || argc > 7) | |
e73c6c0a | 130 | { |
472af6f3 | 131 | _cupsLangPrintf(stderr, |
132 | _("Usage: %s job-id user title copies options [file]\n"), | |
133 | argv[0]); | |
6248387b | 134 | return (CUPS_BACKEND_FAILED); |
e73c6c0a | 135 | } |
136 | ||
137 | /* | |
138 | * If we have 7 arguments, print the file named on the command-line. | |
139 | * Otherwise, send stdin instead... | |
140 | */ | |
141 | ||
142 | if (argc == 6) | |
3f9cb6c6 | 143 | { |
43b5ad0d | 144 | print_fd = 0; |
145 | copies = 1; | |
3f9cb6c6 | 146 | } |
e73c6c0a | 147 | else |
148 | { | |
149 | /* | |
150 | * Try to open the print file... | |
151 | */ | |
152 | ||
43b5ad0d | 153 | if ((print_fd = open(argv[6], O_RDONLY)) < 0) |
e73c6c0a | 154 | { |
537a5f1d | 155 | _cupsLangPrintf(stderr, |
156 | _("ERROR: Unable to open print file \"%s\": %s\n"), | |
157 | argv[6], strerror(errno)); | |
6248387b | 158 | return (CUPS_BACKEND_FAILED); |
e73c6c0a | 159 | } |
3f9cb6c6 | 160 | |
161 | copies = atoi(argv[4]); | |
e73c6c0a | 162 | } |
163 | ||
164 | /* | |
165 | * Extract the hostname and port number from the URI... | |
166 | */ | |
167 | ||
cda2b561 | 168 | if ((device_uri = cupsBackendDeviceURI(argv)) == NULL) |
169 | return (CUPS_BACKEND_FAILED); | |
170 | ||
9fa9ba8f | 171 | httpSeparateURI(HTTP_URI_CODING_ALL, device_uri, scheme, sizeof(scheme), |
172 | username, sizeof(username), hostname, sizeof(hostname), &port, | |
0e66904d | 173 | resource, sizeof(resource)); |
e73c6c0a | 174 | |
175 | if (port == 0) | |
176 | port = 9100; /* Default to HP JetDirect/Tektronix PhaserShare */ | |
177 | ||
41ed0c21 | 178 | /* |
179 | * Get options, if any... | |
180 | */ | |
181 | ||
ff0295f0 | 182 | waiteof = 1; |
183 | contimeout = 7 * 24 * 60 * 60; | |
41ed0c21 | 184 | |
185 | if ((options = strchr(resource, '?')) != NULL) | |
186 | { | |
187 | /* | |
188 | * Yup, terminate the device name string and move to the first | |
189 | * character of the options... | |
190 | */ | |
191 | ||
192 | *options++ = '\0'; | |
193 | ||
194 | /* | |
195 | * Parse options... | |
196 | */ | |
197 | ||
198 | while (*options) | |
199 | { | |
200 | /* | |
201 | * Get the name... | |
202 | */ | |
203 | ||
abd1f85f | 204 | name = options; |
41ed0c21 | 205 | |
abd1f85f | 206 | while (*options && *options != '=' && *options != '+' && *options != '&') |
207 | options ++; | |
208 | ||
209 | if ((sep = *options) != '\0') | |
210 | *options++ = '\0'; | |
211 | ||
212 | if (sep == '=') | |
41ed0c21 | 213 | { |
214 | /* | |
215 | * Get the value... | |
216 | */ | |
217 | ||
abd1f85f | 218 | value = options; |
41ed0c21 | 219 | |
abd1f85f | 220 | while (*options && *options != '+' && *options != '&') |
41ed0c21 | 221 | options ++; |
abd1f85f | 222 | |
223 | if (*options) | |
224 | *options++ = '\0'; | |
41ed0c21 | 225 | } |
226 | else | |
abd1f85f | 227 | value = (char *)""; |
41ed0c21 | 228 | |
229 | /* | |
230 | * Process the option... | |
231 | */ | |
232 | ||
233 | if (!strcasecmp(name, "waiteof")) | |
234 | { | |
235 | /* | |
236 | * Set the wait-for-eof value... | |
237 | */ | |
238 | ||
239 | waiteof = !value[0] || !strcasecmp(value, "on") || | |
240 | !strcasecmp(value, "yes") || !strcasecmp(value, "true"); | |
241 | } | |
ff0295f0 | 242 | else if (!strcasecmp(name, "contimeout")) |
243 | { | |
244 | /* | |
245 | * Set the connection timeout... | |
246 | */ | |
247 | ||
248 | if (atoi(value) > 0) | |
249 | contimeout = atoi(value); | |
250 | } | |
41ed0c21 | 251 | } |
252 | } | |
253 | ||
e73c6c0a | 254 | /* |
255 | * Then try to connect to the remote host... | |
256 | */ | |
257 | ||
ff0295f0 | 258 | recoverable = 0; |
259 | start_time = time(NULL); | |
260 | ||
086c584d | 261 | sprintf(portname, "%d", port); |
262 | ||
9fa9ba8f | 263 | fputs("STATE: +connecting-to-device\n", stderr); |
bd8ccc10 | 264 | fprintf(stderr, "DEBUG: Looking up \"%s\"...\n", hostname); |
265 | ||
086c584d | 266 | if ((addrlist = httpAddrGetList(hostname, AF_UNSPEC, portname)) == NULL) |
e73c6c0a | 267 | { |
472af6f3 | 268 | _cupsLangPrintf(stderr, _("ERROR: Unable to locate printer \'%s\'!\n"), |
269 | hostname); | |
6248387b | 270 | return (CUPS_BACKEND_STOP); |
e73c6c0a | 271 | } |
272 | ||
9fa9ba8f | 273 | fprintf(stderr, "DEBUG: Connecting to %s:%d\n", hostname, port); |
22c808e2 | 274 | _cupsLangPuts(stderr, _("INFO: Connecting to printer...\n")); |
e73c6c0a | 275 | |
43b5ad0d | 276 | for (delay = 5;;) |
e73c6c0a | 277 | { |
a0c0bbe7 | 278 | if ((addr = httpAddrConnect(addrlist, &device_fd)) == NULL) |
e73c6c0a | 279 | { |
43b5ad0d | 280 | error = errno; |
281 | device_fd = -1; | |
3f9cb6c6 | 282 | |
43b5ad0d | 283 | if (getenv("CLASS") != NULL) |
284 | { | |
285 | /* | |
286 | * If the CLASS environment variable is set, the job was submitted | |
287 | * to a class and not to a specific queue. In this case, we want | |
288 | * to abort immediately so that the job can be requeued on the next | |
289 | * available printer in the class. | |
290 | */ | |
b7b63780 | 291 | |
472af6f3 | 292 | _cupsLangPuts(stderr, |
293 | _("INFO: Unable to contact printer, queuing on next " | |
294 | "printer in class...\n")); | |
b7b63780 | 295 | |
43b5ad0d | 296 | /* |
297 | * Sleep 5 seconds to keep the job from requeuing too rapidly... | |
298 | */ | |
b7b63780 | 299 | |
43b5ad0d | 300 | sleep(5); |
b7b63780 | 301 | |
43b5ad0d | 302 | return (CUPS_BACKEND_FAILED); |
303 | } | |
b7b63780 | 304 | |
43b5ad0d | 305 | if (error == ECONNREFUSED || error == EHOSTDOWN || |
306 | error == EHOSTUNREACH) | |
307 | { | |
ff0295f0 | 308 | if (contimeout && (time(NULL) - start_time) > contimeout) |
309 | { | |
472af6f3 | 310 | _cupsLangPuts(stderr, _("ERROR: Printer not responding!\n")); |
ff0295f0 | 311 | return (CUPS_BACKEND_FAILED); |
312 | } | |
313 | ||
314 | recoverable = 1; | |
315 | ||
472af6f3 | 316 | _cupsLangPrintf(stderr, |
317 | _("WARNING: recoverable: Network host \'%s\' is busy; " | |
318 | "will retry in %d seconds...\n"), | |
319 | hostname, delay); | |
ff0295f0 | 320 | |
43b5ad0d | 321 | sleep(delay); |
10f725af | 322 | |
43b5ad0d | 323 | if (delay < 30) |
324 | delay += 5; | |
e73c6c0a | 325 | } |
3f9cb6c6 | 326 | else |
43b5ad0d | 327 | { |
ff0295f0 | 328 | recoverable = 1; |
329 | ||
472af6f3 | 330 | _cupsLangPrintf(stderr, "DEBUG: Connection error: %s\n", |
331 | strerror(errno)); | |
332 | _cupsLangPuts(stderr, | |
333 | _("ERROR: recoverable: Unable to connect to printer; " | |
334 | "will retry in 30 seconds...\n")); | |
43b5ad0d | 335 | sleep(30); |
336 | } | |
e73c6c0a | 337 | } |
43b5ad0d | 338 | else |
339 | break; | |
340 | } | |
e73c6c0a | 341 | |
ff0295f0 | 342 | if (recoverable) |
343 | { | |
344 | /* | |
9fa9ba8f | 345 | * If we've shown a recoverable error make sure the printer proxies have a |
346 | * chance to see the recovered message. Not pretty but necessary for now... | |
ff0295f0 | 347 | */ |
348 | ||
349 | fputs("INFO: recovered: \n", stderr); | |
350 | sleep(5); | |
351 | } | |
352 | ||
43b5ad0d | 353 | fputs("STATE: -connecting-to-device\n", stderr); |
22c808e2 | 354 | _cupsLangPuts(stderr, _("INFO: Connected to printer...\n")); |
a0c0bbe7 | 355 | |
356 | #ifdef AF_INET6 | |
357 | if (addr->addr.addr.sa_family == AF_INET6) | |
ff0295f0 | 358 | fprintf(stderr, "DEBUG: Connected to [%s]:%d (IPv6)...\n", |
359 | httpAddrString(&addr->addr, addrname, sizeof(addrname)), | |
360 | ntohs(addr->addr.ipv6.sin6_port)); | |
a0c0bbe7 | 361 | else |
362 | #endif /* AF_INET6 */ | |
363 | if (addr->addr.addr.sa_family == AF_INET) | |
ff0295f0 | 364 | fprintf(stderr, "DEBUG: Connected to %s:%d (IPv4)...\n", |
365 | httpAddrString(&addr->addr, addrname, sizeof(addrname)), | |
366 | ntohs(addr->addr.ipv4.sin_port)); | |
4ff40357 | 367 | |
5ba153ab | 368 | /* |
369 | * See if the printer supports SNMP... | |
370 | */ | |
371 | ||
b9e7ae13 | 372 | if ((snmp_fd = _cupsSNMPOpen(addr->addr.addr.sa_family)) >= 0) |
c97b7208 | 373 | { |
6bffe4a6 | 374 | have_supplies = !backendSNMPSupplies(snmp_fd, &(addr->addr), &start_count, |
375 | NULL); | |
c97b7208 | 376 | } |
377 | else | |
6bffe4a6 | 378 | have_supplies = start_count = 0; |
5ba153ab | 379 | |
43b5ad0d | 380 | /* |
381 | * Print everything... | |
382 | */ | |
4ff40357 | 383 | |
43b5ad0d | 384 | tbytes = 0; |
e73c6c0a | 385 | |
43b5ad0d | 386 | while (copies > 0 && tbytes >= 0) |
387 | { | |
3f9cb6c6 | 388 | copies --; |
7c88bf41 | 389 | |
43b5ad0d | 390 | if (print_fd != 0) |
e73c6c0a | 391 | { |
3f9cb6c6 | 392 | fputs("PAGE: 1 1\n", stderr); |
43b5ad0d | 393 | lseek(print_fd, 0, SEEK_SET); |
e73c6c0a | 394 | } |
e73c6c0a | 395 | |
5ba153ab | 396 | tbytes = backendRunLoop(print_fd, device_fd, snmp_fd, &(addr->addr), 1, |
397 | backendNetworkSideCB); | |
5baa731f | 398 | |
43b5ad0d | 399 | if (print_fd != 0 && tbytes >= 0) |
472af6f3 | 400 | _cupsLangPrintf(stderr, |
ff0295f0 | 401 | #ifdef HAVE_LONG_LONG |
472af6f3 | 402 | _("INFO: Sent print file, %lld bytes...\n"), |
ff0295f0 | 403 | #else |
472af6f3 | 404 | _("INFO: Sent print file, %ld bytes...\n"), |
ff0295f0 | 405 | #endif /* HAVE_LONG_LONG */ |
472af6f3 | 406 | CUPS_LLCAST tbytes); |
43b5ad0d | 407 | } |
3f9cb6c6 | 408 | |
313509aa | 409 | /* |
ef494175 | 410 | * Wait up to 5 seconds to get any pending back-channel data... |
313509aa | 411 | */ |
412 | ||
ef494175 | 413 | wait_time = time(NULL) + 5; |
8953a911 | 414 | while (wait_time >= time(¤t_time)) |
415 | if (wait_bc(device_fd, wait_time - current_time) <= 0) | |
ef494175 | 416 | break; |
313509aa | 417 | |
43b5ad0d | 418 | if (waiteof) |
419 | { | |
420 | /* | |
421 | * Shutdown the socket and wait for the other end to finish... | |
422 | */ | |
3f9cb6c6 | 423 | |
472af6f3 | 424 | _cupsLangPuts(stderr, |
425 | _("INFO: Print file sent, waiting for printer to finish...\n")); | |
0cd4970e | 426 | |
43b5ad0d | 427 | shutdown(device_fd, 1); |
3f9cb6c6 | 428 | |
313509aa | 429 | while (wait_bc(device_fd, 90) > 0); |
43b5ad0d | 430 | } |
b5cb0608 | 431 | |
5ba153ab | 432 | /* |
433 | * Collect the final page count as needed... | |
434 | */ | |
435 | ||
6bffe4a6 | 436 | if (have_supplies && |
5ba153ab | 437 | !backendSNMPSupplies(snmp_fd, &(addr->addr), &page_count, NULL) && |
438 | page_count > start_count) | |
439 | fprintf(stderr, "PAGE: total %d\n", page_count - start_count); | |
440 | ||
43b5ad0d | 441 | /* |
442 | * Close the socket connection... | |
443 | */ | |
3f9cb6c6 | 444 | |
43b5ad0d | 445 | close(device_fd); |
e73c6c0a | 446 | |
086c584d | 447 | httpAddrFreeList(addrlist); |
448 | ||
e73c6c0a | 449 | /* |
3f9cb6c6 | 450 | * Close the input file and return... |
e73c6c0a | 451 | */ |
452 | ||
43b5ad0d | 453 | if (print_fd != 0) |
454 | close(print_fd); | |
e73c6c0a | 455 | |
43b5ad0d | 456 | if (tbytes >= 0) |
472af6f3 | 457 | _cupsLangPuts(stderr, _("INFO: Ready to print.\n")); |
6248387b | 458 | |
43b5ad0d | 459 | return (tbytes < 0 ? CUPS_BACKEND_FAILED : CUPS_BACKEND_OK); |
e73c6c0a | 460 | } |
43e2fc22 | 461 | |
462 | ||
313509aa | 463 | /* |
464 | * 'wait_bc()' - Wait for back-channel data... | |
465 | */ | |
466 | ||
467 | static int /* O - # bytes read or -1 on error */ | |
468 | wait_bc(int device_fd, /* I - Socket */ | |
469 | int secs) /* I - Seconds to wait */ | |
470 | { | |
471 | struct timeval timeout; /* Timeout for select() */ | |
472 | fd_set input; /* Input set for select() */ | |
473 | ssize_t bytes; /* Number of back-channel bytes read */ | |
474 | char buffer[1024]; /* Back-channel buffer */ | |
475 | ||
476 | ||
477 | /* | |
478 | * Wait up to "secs" seconds for backchannel data... | |
479 | */ | |
480 | ||
481 | timeout.tv_sec = secs; | |
482 | timeout.tv_usec = 0; | |
483 | ||
484 | FD_ZERO(&input); | |
485 | FD_SET(device_fd, &input); | |
486 | ||
487 | if (select(device_fd + 1, &input, NULL, NULL, &timeout) > 0) | |
488 | { | |
489 | /* | |
490 | * Grab the data coming back and spit it out to stderr... | |
491 | */ | |
492 | ||
493 | if ((bytes = read(device_fd, buffer, sizeof(buffer))) > 0) | |
494 | { | |
495 | fprintf(stderr, "DEBUG: Received %d bytes of back-channel data!\n", | |
496 | (int)bytes); | |
497 | cupsBackChannelWrite(buffer, bytes, 1.0); | |
498 | } | |
499 | ||
500 | return (bytes); | |
501 | } | |
502 | else | |
503 | return (-1); | |
504 | } | |
505 | ||
506 | ||
b2e10895 | 507 | /* |
508 | * End of "$Id$". | |
43e2fc22 | 509 | */ |