]>
Commit | Line | Data |
---|---|---|
ef416fc2 | 1 | /* |
b19ccc9e | 2 | * "$Id: usb-unix.c 7810 2008-07-29 01:11:15Z mike $" |
ef416fc2 | 3 | * |
c8fef167 | 4 | * USB port backend for CUPS. |
ef416fc2 | 5 | * |
6 | * This file is included from "usb.c" when compiled on UNIX/Linux. | |
7 | * | |
c8fef167 | 8 | * Copyright 2007-2011 by Apple Inc. |
f7deaa1a | 9 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 10 | * |
11 | * These coded instructions, statements, and computer programs are the | |
bc44d920 | 12 | * property of Apple Inc. and are protected by Federal copyright |
13 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
ef416fc2 | 14 | * "LICENSE" which should have been included with this file. If this |
bc44d920 | 15 | * file is missing or damaged, see the license at "http://www.cups.org/". |
ef416fc2 | 16 | * |
17 | * This file is subject to the Apple OS-Developed Software exception. | |
18 | * | |
19 | * Contents: | |
20 | * | |
ed486911 | 21 | * print_device() - Print a file to a USB device. |
ef416fc2 | 22 | * list_devices() - List all USB devices. |
ed486911 | 23 | * open_device() - Open a USB device... |
f7deaa1a | 24 | * side_cb() - Handle side-channel requests... |
ef416fc2 | 25 | */ |
26 | ||
27 | /* | |
28 | * Include necessary headers. | |
29 | */ | |
30 | ||
ef416fc2 | 31 | #include <sys/select.h> |
32 | ||
33 | ||
34 | /* | |
35 | * Local functions... | |
36 | */ | |
37 | ||
f7deaa1a | 38 | static int open_device(const char *uri, int *use_bc); |
18ecb428 | 39 | static int side_cb(int print_fd, int device_fd, int snmp_fd, |
568fa3fa | 40 | http_addr_t *addr, int use_bc); |
ef416fc2 | 41 | |
42 | ||
43 | /* | |
44 | * 'print_device()' - Print a file to a USB device. | |
45 | */ | |
46 | ||
47 | int /* O - Exit status */ | |
48 | print_device(const char *uri, /* I - Device URI */ | |
49 | const char *hostname, /* I - Hostname/manufacturer */ | |
50 | const char *resource, /* I - Resource/modelname */ | |
db1f069b | 51 | char *options, /* I - Device options/serial number */ |
ed486911 | 52 | int print_fd, /* I - File descriptor to print */ |
e53920b9 | 53 | int copies, /* I - Copies to print */ |
54 | int argc, /* I - Number of command-line arguments (6 or 7) */ | |
55 | char *argv[]) /* I - Command-line arguments */ | |
ef416fc2 | 56 | { |
ed486911 | 57 | int use_bc; /* Use backchannel path? */ |
58 | int device_fd; /* USB device */ | |
59 | size_t tbytes; /* Total number of bytes written */ | |
ef416fc2 | 60 | struct termios opts; /* Parallel port options */ |
ed486911 | 61 | |
ef416fc2 | 62 | |
e53920b9 | 63 | (void)argc; |
64 | (void)argv; | |
ef416fc2 | 65 | |
66 | /* | |
67 | * Open the USB port device... | |
68 | */ | |
69 | ||
757d2cad | 70 | fputs("STATE: +connecting-to-device\n", stderr); |
71 | ||
ef416fc2 | 72 | do |
73 | { | |
b94498cf | 74 | #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) |
323c5de1 | 75 | /* |
b94498cf | 76 | * *BSD's ulpt driver currently does not support the |
77 | * back-channel, incorrectly returns data ready on a select(), | |
78 | * and locks up on read()... | |
323c5de1 | 79 | */ |
80 | ||
81 | use_bc = 0; | |
82 | ||
ed6e7faf MS |
83 | #elif defined(__sun) |
84 | /* | |
85 | * CUPS STR #3028: Solaris' usbprn driver apparently does not support | |
86 | * select() or poll(), so we can't support backchannel... | |
87 | */ | |
88 | ||
89 | use_bc = 0; | |
90 | ||
323c5de1 | 91 | #else |
8ca02f3c | 92 | /* |
f7deaa1a | 93 | * Disable backchannel data when printing to Brother, Canon, or |
94 | * Minolta USB printers - apparently these printers will return | |
95 | * the IEEE-1284 device ID over and over and over when they get | |
96 | * a read request... | |
8ca02f3c | 97 | */ |
98 | ||
f7deaa1a | 99 | use_bc = strcasecmp(hostname, "Brother") && |
100 | strcasecmp(hostname, "Canon") && | |
0a682745 MS |
101 | strncasecmp(hostname, "Konica", 6) && |
102 | strncasecmp(hostname, "Minolta", 7); | |
b94498cf | 103 | #endif /* __FreeBSD__ || __NetBSD__ || __OpenBSD__ || __DragonFly__ */ |
8ca02f3c | 104 | |
105 | if ((device_fd = open_device(uri, &use_bc)) == -1) | |
ef416fc2 | 106 | { |
107 | if (getenv("CLASS") != NULL) | |
108 | { | |
109 | /* | |
110 | * If the CLASS environment variable is set, the job was submitted | |
111 | * to a class and not to a specific queue. In this case, we want | |
112 | * to abort immediately so that the job can be requeued on the next | |
113 | * available printer in the class. | |
114 | */ | |
115 | ||
0837b7e8 MS |
116 | _cupsLangPrintFilter(stderr, "INFO", |
117 | _("Unable to contact printer, queuing on next " | |
118 | "printer in class.")); | |
ef416fc2 | 119 | |
120 | /* | |
121 | * Sleep 5 seconds to keep the job from requeuing too rapidly... | |
122 | */ | |
123 | ||
124 | sleep(5); | |
125 | ||
126 | return (CUPS_BACKEND_FAILED); | |
127 | } | |
128 | ||
129 | if (errno == EBUSY) | |
130 | { | |
0837b7e8 MS |
131 | _cupsLangPrintFilter(stderr, "INFO", |
132 | _("Printer busy, will retry in 10 seconds.")); | |
c0e1af83 | 133 | sleep(10); |
ef416fc2 | 134 | } |
ed486911 | 135 | else if (errno == ENXIO || errno == EIO || errno == ENOENT || |
136 | errno == ENODEV) | |
ef416fc2 | 137 | { |
0837b7e8 MS |
138 | _cupsLangPrintFilter(stderr, "INFO", |
139 | _("Printer not connected, will retry in 30 " | |
140 | "seconds.")); | |
ef416fc2 | 141 | sleep(30); |
142 | } | |
143 | else | |
144 | { | |
c779abb0 | 145 | _cupsLangPrintError("ERROR", _("Unable to open device file")); |
ef416fc2 | 146 | return (CUPS_BACKEND_FAILED); |
147 | } | |
148 | } | |
149 | } | |
ed486911 | 150 | while (device_fd < 0); |
ef416fc2 | 151 | |
757d2cad | 152 | fputs("STATE: -connecting-to-device\n", stderr); |
153 | ||
ef416fc2 | 154 | /* |
155 | * Set any options provided... | |
156 | */ | |
157 | ||
ed486911 | 158 | tcgetattr(device_fd, &opts); |
ef416fc2 | 159 | |
160 | opts.c_lflag &= ~(ICANON | ECHO | ISIG); /* Raw mode */ | |
161 | ||
162 | /**** No options supported yet ****/ | |
163 | ||
ed486911 | 164 | tcsetattr(device_fd, TCSANOW, &opts); |
ef416fc2 | 165 | |
ef416fc2 | 166 | /* |
167 | * Finally, send the print file... | |
168 | */ | |
169 | ||
ed486911 | 170 | tbytes = 0; |
ef416fc2 | 171 | |
ed486911 | 172 | while (copies > 0 && tbytes >= 0) |
ef416fc2 | 173 | { |
174 | copies --; | |
175 | ||
ed486911 | 176 | if (print_fd != 0) |
ef416fc2 | 177 | { |
178 | fputs("PAGE: 1 1\n", stderr); | |
ed486911 | 179 | lseek(print_fd, 0, SEEK_SET); |
ef416fc2 | 180 | } |
181 | ||
ed6e7faf MS |
182 | #ifdef __sun |
183 | /* | |
184 | * CUPS STR #3028: Solaris' usbprn driver apparently does not support | |
185 | * select() or poll(), so we can't support the sidechannel either... | |
186 | */ | |
187 | ||
ef55b745 | 188 | tbytes = backendRunLoop(print_fd, device_fd, -1, NULL, use_bc, 1, NULL); |
ed6e7faf MS |
189 | |
190 | #else | |
ef55b745 | 191 | tbytes = backendRunLoop(print_fd, device_fd, -1, NULL, use_bc, 1, side_cb); |
ed6e7faf | 192 | #endif /* __sun */ |
ef416fc2 | 193 | |
ed486911 | 194 | if (print_fd != 0 && tbytes >= 0) |
0837b7e8 | 195 | _cupsLangPrintFilter(stderr, "INFO", _("Print file sent.")); |
ef416fc2 | 196 | } |
197 | ||
198 | /* | |
199 | * Close the USB port and return... | |
200 | */ | |
201 | ||
ed486911 | 202 | close(device_fd); |
ef416fc2 | 203 | |
c8fef167 | 204 | return (CUPS_BACKEND_OK); |
ef416fc2 | 205 | } |
206 | ||
207 | ||
208 | /* | |
209 | * 'list_devices()' - List all USB devices. | |
210 | */ | |
211 | ||
212 | void | |
213 | list_devices(void) | |
214 | { | |
215 | #ifdef __linux | |
2abf387c | 216 | int i; /* Looping var */ |
217 | int fd; /* File descriptor */ | |
218 | char device[255], /* Device filename */ | |
219 | device_id[1024], /* Device ID string */ | |
220 | device_uri[1024], /* Device URI string */ | |
221 | make_model[1024]; /* Make and model */ | |
ef416fc2 | 222 | |
749b1e90 | 223 | |
ef416fc2 | 224 | /* |
2abf387c | 225 | * Try to open each USB device... |
ef416fc2 | 226 | */ |
227 | ||
228 | for (i = 0; i < 16; i ++) | |
229 | { | |
2abf387c | 230 | /* |
231 | * Linux has a long history of changing the standard filenames used | |
232 | * for USB printer devices. We get the honor of trying them all... | |
233 | */ | |
ef416fc2 | 234 | |
2abf387c | 235 | sprintf(device, "/dev/usblp%d", i); |
236 | ||
237 | if ((fd = open(device, O_RDWR | O_EXCL)) < 0) | |
ef416fc2 | 238 | { |
2abf387c | 239 | if (errno != ENOENT) |
240 | continue; | |
ef416fc2 | 241 | |
2abf387c | 242 | sprintf(device, "/dev/usb/lp%d", i); |
243 | ||
244 | if ((fd = open(device, O_RDWR | O_EXCL)) < 0) | |
245 | { | |
246 | if (errno != ENOENT) | |
247 | continue; | |
248 | ||
249 | sprintf(device, "/dev/usb/usblp%d", i); | |
250 | ||
251 | if ((fd = open(device, O_RDWR | O_EXCL)) < 0) | |
252 | continue; | |
253 | } | |
ef416fc2 | 254 | } |
2abf387c | 255 | |
256 | if (!backendGetDeviceID(fd, device_id, sizeof(device_id), | |
257 | make_model, sizeof(make_model), | |
258 | "usb", device_uri, sizeof(device_uri))) | |
749b1e90 MS |
259 | cupsBackendReport("direct", device_uri, make_model, make_model, |
260 | device_id, NULL); | |
2abf387c | 261 | |
262 | close(fd); | |
ef416fc2 | 263 | } |
264 | #elif defined(__sgi) | |
265 | #elif defined(__sun) && defined(ECPPIOC_GETDEVID) | |
266 | int i; /* Looping var */ | |
267 | int fd; /* File descriptor */ | |
268 | char device[255], /* Device filename */ | |
269 | device_id[1024], /* Device ID string */ | |
270 | device_uri[1024], /* Device URI string */ | |
271 | make_model[1024]; /* Make and model */ | |
ef416fc2 | 272 | |
273 | ||
274 | /* | |
275 | * Open each USB device... | |
276 | */ | |
277 | ||
278 | for (i = 0; i < 8; i ++) | |
279 | { | |
280 | sprintf(device, "/dev/usb/printer%d", i); | |
281 | ||
8ca02f3c | 282 | if ((fd = open(device, O_WRONLY | O_EXCL)) >= 0) |
ef416fc2 | 283 | { |
ed486911 | 284 | if (!backendGetDeviceID(fd, device_id, sizeof(device_id), |
285 | make_model, sizeof(make_model), | |
286 | "usb", device_uri, sizeof(device_uri))) | |
749b1e90 MS |
287 | cupsBackendReport("direct", device_uri, make_model, make_model, |
288 | device_id, NULL); | |
ef416fc2 | 289 | |
290 | close(fd); | |
291 | } | |
292 | } | |
293 | #elif defined(__hpux) | |
294 | #elif defined(__osf) | |
2e4ff8af | 295 | #elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__) |
ef416fc2 | 296 | int i; /* Looping var */ |
297 | char device[255]; /* Device filename */ | |
298 | ||
299 | ||
300 | for (i = 0; i < 8; i ++) | |
301 | { | |
302 | sprintf(device, "/dev/ulpt%d", i); | |
303 | if (!access(device, 0)) | |
304 | printf("direct usb:%s \"Unknown\" \"USB Printer #%d\"\n", device, i + 1); | |
305 | ||
306 | sprintf(device, "/dev/unlpt%d", i); | |
307 | if (!access(device, 0)) | |
308 | printf("direct usb:%s \"Unknown\" \"USB Printer #%d (no reset)\"\n", device, i + 1); | |
309 | } | |
310 | #endif | |
311 | } | |
312 | ||
313 | ||
314 | /* | |
315 | * 'open_device()' - Open a USB device... | |
316 | */ | |
317 | ||
f7deaa1a | 318 | static int /* O - File descriptor or -1 on error */ |
8ca02f3c | 319 | open_device(const char *uri, /* I - Device URI */ |
320 | int *use_bc) /* O - Set to 0 for unidirectional */ | |
ef416fc2 | 321 | { |
8ca02f3c | 322 | int fd; /* File descriptor */ |
323 | ||
324 | ||
ef416fc2 | 325 | /* |
326 | * The generic implementation just treats the URI as a device filename... | |
327 | * Specific operating systems may also support using the device serial | |
328 | * number and/or make/model. | |
329 | */ | |
330 | ||
331 | if (!strncmp(uri, "usb:/dev/", 9)) | |
332 | #ifdef __linux | |
ed486911 | 333 | { |
334 | /* | |
335 | * Do not allow direct devices anymore... | |
336 | */ | |
337 | ||
338 | errno = ENODEV; | |
339 | return (-1); | |
340 | } | |
ef416fc2 | 341 | else if (!strncmp(uri, "usb://", 6)) |
342 | { | |
343 | /* | |
344 | * For Linux, try looking up the device serial number or model... | |
345 | */ | |
346 | ||
347 | int i; /* Looping var */ | |
348 | int busy; /* Are any ports busy? */ | |
2abf387c | 349 | char device[255], /* Device filename */ |
ef416fc2 | 350 | device_id[1024], /* Device ID string */ |
351 | make_model[1024], /* Make and model */ | |
352 | device_uri[1024]; /* Device URI string */ | |
353 | ||
354 | ||
355 | /* | |
2abf387c | 356 | * Find the correct USB device... |
ef416fc2 | 357 | */ |
358 | ||
0a682745 | 359 | for (;;) |
ef416fc2 | 360 | { |
361 | for (busy = 0, i = 0; i < 16; i ++) | |
362 | { | |
2abf387c | 363 | /* |
364 | * Linux has a long history of changing the standard filenames used | |
365 | * for USB printer devices. We get the honor of trying them all... | |
366 | */ | |
367 | ||
368 | sprintf(device, "/dev/usblp%d", i); | |
369 | ||
370 | if ((fd = open(device, O_RDWR | O_EXCL)) < 0 && errno == ENOENT) | |
371 | { | |
372 | sprintf(device, "/dev/usb/lp%d", i); | |
373 | ||
374 | if ((fd = open(device, O_RDWR | O_EXCL)) < 0 && errno == ENOENT) | |
375 | { | |
376 | sprintf(device, "/dev/usb/usblp%d", i); | |
377 | ||
378 | if ((fd = open(device, O_RDWR | O_EXCL)) < 0 && errno == ENOENT) | |
379 | continue; | |
380 | } | |
381 | } | |
ef416fc2 | 382 | |
2abf387c | 383 | if (fd >= 0) |
ef416fc2 | 384 | { |
ed486911 | 385 | backendGetDeviceID(fd, device_id, sizeof(device_id), |
386 | make_model, sizeof(make_model), | |
387 | "usb", device_uri, sizeof(device_uri)); | |
ef416fc2 | 388 | } |
389 | else | |
390 | { | |
391 | /* | |
392 | * If the open failed because it was busy, flag it so we retry | |
393 | * as needed... | |
394 | */ | |
395 | ||
396 | if (errno == EBUSY) | |
397 | busy = 1; | |
398 | ||
399 | device_uri[0] = '\0'; | |
400 | } | |
401 | ||
402 | if (!strcmp(uri, device_uri)) | |
403 | { | |
404 | /* | |
405 | * Yes, return this file descriptor... | |
406 | */ | |
407 | ||
c0e1af83 | 408 | fprintf(stderr, "DEBUG: Printer using device file \"%s\"...\n", |
409 | device); | |
ef416fc2 | 410 | |
411 | return (fd); | |
412 | } | |
413 | ||
414 | /* | |
415 | * This wasn't the one... | |
416 | */ | |
417 | ||
418 | if (fd >= 0) | |
419 | close(fd); | |
420 | } | |
421 | ||
422 | /* | |
423 | * If we get here and at least one of the printer ports showed up | |
424 | * as "busy", then sleep for a bit and retry... | |
425 | */ | |
426 | ||
427 | if (busy) | |
0837b7e8 MS |
428 | _cupsLangPrintFilter(stderr, "INFO", |
429 | _("Printer is busy, will retry in 5 seconds.")); | |
839a51c8 MS |
430 | |
431 | sleep(5); | |
ef416fc2 | 432 | } |
ef416fc2 | 433 | } |
434 | #elif defined(__sun) && defined(ECPPIOC_GETDEVID) | |
ed486911 | 435 | { |
436 | /* | |
437 | * Do not allow direct devices anymore... | |
438 | */ | |
439 | ||
440 | errno = ENODEV; | |
441 | return (-1); | |
442 | } | |
ef416fc2 | 443 | else if (!strncmp(uri, "usb://", 6)) |
444 | { | |
445 | /* | |
446 | * For Solaris, try looking up the device serial number or model... | |
447 | */ | |
448 | ||
449 | int i; /* Looping var */ | |
450 | int busy; /* Are any ports busy? */ | |
ef416fc2 | 451 | char device[255], /* Device filename */ |
452 | device_id[1024], /* Device ID string */ | |
453 | make_model[1024], /* Make and model */ | |
454 | device_uri[1024]; /* Device URI string */ | |
ef416fc2 | 455 | |
456 | ||
457 | /* | |
458 | * Find the correct USB device... | |
459 | */ | |
460 | ||
461 | do | |
462 | { | |
463 | for (i = 0, busy = 0; i < 8; i ++) | |
464 | { | |
465 | sprintf(device, "/dev/usb/printer%d", i); | |
466 | ||
8ca02f3c | 467 | if ((fd = open(device, O_WRONLY | O_EXCL)) >= 0) |
ed486911 | 468 | backendGetDeviceID(fd, device_id, sizeof(device_id), |
469 | make_model, sizeof(make_model), | |
470 | "usb", device_uri, sizeof(device_uri)); | |
ef416fc2 | 471 | else |
472 | { | |
473 | /* | |
474 | * If the open failed because it was busy, flag it so we retry | |
475 | * as needed... | |
476 | */ | |
477 | ||
478 | if (errno == EBUSY) | |
479 | busy = 1; | |
480 | ||
481 | device_uri[0] = '\0'; | |
482 | } | |
483 | ||
484 | if (!strcmp(uri, device_uri)) | |
8ca02f3c | 485 | { |
486 | /* | |
487 | * Yes, return this file descriptor... | |
488 | */ | |
489 | ||
490 | fputs("DEBUG: Setting use_bc to 0!\n", stderr); | |
491 | ||
492 | *use_bc = 0; | |
493 | ||
494 | return (fd); | |
495 | } | |
ef416fc2 | 496 | |
497 | /* | |
498 | * This wasn't the one... | |
499 | */ | |
500 | ||
501 | if (fd >= 0) | |
502 | close(fd); | |
503 | } | |
504 | ||
505 | /* | |
506 | * If we get here and at least one of the printer ports showed up | |
507 | * as "busy", then sleep for a bit and retry... | |
508 | */ | |
509 | ||
510 | if (busy) | |
511 | { | |
0837b7e8 MS |
512 | _cupsLangPrintFilter(stderr, "INFO", |
513 | _("Printer is busy, will retry in 5 seconds.")); | |
ef416fc2 | 514 | sleep(5); |
515 | } | |
516 | } | |
517 | while (busy); | |
518 | ||
519 | /* | |
520 | * Couldn't find the printer, return "no such device or address"... | |
521 | */ | |
522 | ||
523 | errno = ENODEV; | |
524 | ||
525 | return (-1); | |
526 | } | |
527 | #else | |
8ca02f3c | 528 | { |
91c84a35 | 529 | if (*use_bc) |
323c5de1 | 530 | fd = open(uri + 4, O_RDWR | O_EXCL); |
531 | else | |
532 | fd = -1; | |
533 | ||
534 | if (fd < 0) | |
8ca02f3c | 535 | { |
536 | fd = open(uri + 4, O_WRONLY | O_EXCL); | |
537 | *use_bc = 0; | |
538 | } | |
539 | ||
540 | return (fd); | |
541 | } | |
ef416fc2 | 542 | #endif /* __linux */ |
543 | else | |
544 | { | |
545 | errno = ENODEV; | |
546 | return (-1); | |
547 | } | |
548 | } | |
549 | ||
550 | ||
551 | /* | |
f7deaa1a | 552 | * 'side_cb()' - Handle side-channel requests... |
553 | */ | |
554 | ||
18ecb428 | 555 | static int /* O - 0 on success, -1 on error */ |
568fa3fa MS |
556 | side_cb(int print_fd, /* I - Print file */ |
557 | int device_fd, /* I - Device file */ | |
558 | int snmp_fd, /* I - SNMP socket (unused) */ | |
559 | http_addr_t *addr, /* I - Device address (unused) */ | |
560 | int use_bc) /* I - Using back-channel? */ | |
f7deaa1a | 561 | { |
562 | cups_sc_command_t command; /* Request command */ | |
563 | cups_sc_status_t status; /* Request/response status */ | |
564 | char data[2048]; /* Request/response data */ | |
565 | int datalen; /* Request/response data size */ | |
566 | ||
567 | ||
568fa3fa MS |
568 | (void)snmp_fd; |
569 | (void)addr; | |
570 | ||
f7deaa1a | 571 | datalen = sizeof(data); |
572 | ||
573 | if (cupsSideChannelRead(&command, &status, data, &datalen, 1.0)) | |
18ecb428 | 574 | return (-1); |
f7deaa1a | 575 | |
576 | switch (command) | |
577 | { | |
578 | case CUPS_SC_CMD_DRAIN_OUTPUT : | |
09a101d6 | 579 | if (backendDrainOutput(print_fd, device_fd)) |
580 | status = CUPS_SC_STATUS_IO_ERROR; | |
581 | else if (tcdrain(device_fd)) | |
f7deaa1a | 582 | status = CUPS_SC_STATUS_IO_ERROR; |
583 | else | |
584 | status = CUPS_SC_STATUS_OK; | |
585 | ||
586 | datalen = 0; | |
587 | break; | |
588 | ||
589 | case CUPS_SC_CMD_GET_BIDI : | |
8b450588 | 590 | status = CUPS_SC_STATUS_OK; |
f7deaa1a | 591 | data[0] = use_bc; |
592 | datalen = 1; | |
593 | break; | |
594 | ||
595 | case CUPS_SC_CMD_GET_DEVICE_ID : | |
596 | memset(data, 0, sizeof(data)); | |
597 | ||
598 | if (backendGetDeviceID(device_fd, data, sizeof(data) - 1, | |
599 | NULL, 0, NULL, NULL, 0)) | |
600 | { | |
601 | status = CUPS_SC_STATUS_NOT_IMPLEMENTED; | |
602 | datalen = 0; | |
603 | } | |
604 | else | |
605 | { | |
606 | status = CUPS_SC_STATUS_OK; | |
607 | datalen = strlen(data); | |
608 | } | |
609 | break; | |
610 | ||
611 | default : | |
612 | status = CUPS_SC_STATUS_NOT_IMPLEMENTED; | |
613 | datalen = 0; | |
614 | break; | |
615 | } | |
616 | ||
18ecb428 | 617 | return (cupsSideChannelWrite(command, status, data, datalen, 1.0)); |
f7deaa1a | 618 | } |
619 | ||
620 | ||
621 | /* | |
b19ccc9e | 622 | * End of "$Id: usb-unix.c 7810 2008-07-29 01:11:15Z mike $". |
ef416fc2 | 623 | */ |