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ef416fc2 | 1 | /* |
b19ccc9e | 2 | * "$Id: parallel.c 7810 2008-07-29 01:11:15Z mike $" |
ef416fc2 | 3 | * |
0837b7e8 | 4 | * Parallel port backend for CUPS. |
ef416fc2 | 5 | * |
c8fef167 | 6 | * Copyright 2007-2011 by Apple Inc. |
f7deaa1a | 7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 8 | * |
9 | * These coded instructions, statements, and computer programs are the | |
bc44d920 | 10 | * property of Apple Inc. and are protected by Federal copyright |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
ef416fc2 | 12 | * "LICENSE" which should have been included with this file. If this |
bc44d920 | 13 | * file is missing or damaged, see the license at "http://www.cups.org/". |
ef416fc2 | 14 | * |
15 | * This file is subject to the Apple OS-Developed Software exception. | |
16 | * | |
17 | * Contents: | |
18 | * | |
19 | * main() - Send a file to the specified parallel port. | |
20 | * list_devices() - List all parallel devices. | |
f7deaa1a | 21 | * side_cb() - Handle side-channel requests... |
ef416fc2 | 22 | */ |
23 | ||
24 | /* | |
25 | * Include necessary headers. | |
26 | */ | |
27 | ||
ed486911 | 28 | #include "backend-private.h" |
ef416fc2 | 29 | |
b423cd4c | 30 | #ifdef __hpux |
31 | # include <sys/time.h> | |
32 | #else | |
33 | # include <sys/select.h> | |
34 | #endif /* __hpux */ | |
35 | ||
ef416fc2 | 36 | #ifdef WIN32 |
37 | # include <io.h> | |
38 | #else | |
39 | # include <unistd.h> | |
40 | # include <fcntl.h> | |
41 | # include <termios.h> | |
42 | # include <sys/socket.h> | |
43 | #endif /* WIN32 */ | |
44 | ||
45 | #ifdef __sgi | |
46 | # include <invent.h> | |
47 | # ifndef INV_EPP_ECP_PLP | |
48 | # define INV_EPP_ECP_PLP 6 /* From 6.3/6.4/6.5 sys/invent.h */ | |
49 | # define INV_ASO_SERIAL 14 /* serial portion of SGI ASO board */ | |
50 | # define INV_IOC3_DMA 16 /* DMA mode IOC3 serial */ | |
51 | # define INV_IOC3_PIO 17 /* PIO mode IOC3 serial */ | |
52 | # define INV_ISA_DMA 19 /* DMA mode ISA serial -- O2 */ | |
53 | # endif /* !INV_EPP_ECP_PLP */ | |
54 | #endif /* __sgi */ | |
55 | ||
56 | ||
57 | /* | |
58 | * Local functions... | |
59 | */ | |
60 | ||
f7deaa1a | 61 | static void list_devices(void); |
18ecb428 | 62 | static int side_cb(int print_fd, int device_fd, int snmp_fd, |
568fa3fa | 63 | http_addr_t *addr, int use_bc); |
ef416fc2 | 64 | |
65 | ||
66 | /* | |
67 | * 'main()' - Send a file to the specified parallel port. | |
68 | * | |
69 | * Usage: | |
70 | * | |
71 | * printer-uri job-id user title copies options [file] | |
72 | */ | |
73 | ||
74 | int /* O - Exit status */ | |
75 | main(int argc, /* I - Number of command-line arguments (6 or 7) */ | |
76 | char *argv[]) /* I - Command-line arguments */ | |
77 | { | |
78 | char method[255], /* Method in URI */ | |
79 | hostname[1024], /* Hostname */ | |
80 | username[255], /* Username info (not used) */ | |
81 | resource[1024], /* Resource info (device and options) */ | |
82 | *options; /* Pointer to options */ | |
83 | int port; /* Port number (not used) */ | |
ed486911 | 84 | int print_fd, /* Print file */ |
26d47ec6 | 85 | device_fd, /* Parallel device */ |
86 | use_bc; /* Read back-channel data? */ | |
ef416fc2 | 87 | int copies; /* Number of copies to print */ |
ed486911 | 88 | size_t tbytes; /* Total number of bytes written */ |
ef416fc2 | 89 | struct termios opts; /* Parallel port options */ |
ef416fc2 | 90 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
91 | struct sigaction action; /* Actions for POSIX signals */ | |
92 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
ef416fc2 | 93 | |
94 | ||
95 | /* | |
96 | * Make sure status messages are not buffered... | |
97 | */ | |
98 | ||
99 | setbuf(stderr, NULL); | |
100 | ||
101 | /* | |
102 | * Ignore SIGPIPE signals... | |
103 | */ | |
104 | ||
105 | #ifdef HAVE_SIGSET | |
106 | sigset(SIGPIPE, SIG_IGN); | |
107 | #elif defined(HAVE_SIGACTION) | |
108 | memset(&action, 0, sizeof(action)); | |
109 | action.sa_handler = SIG_IGN; | |
110 | sigaction(SIGPIPE, &action, NULL); | |
111 | #else | |
112 | signal(SIGPIPE, SIG_IGN); | |
113 | #endif /* HAVE_SIGSET */ | |
114 | ||
115 | /* | |
116 | * Check command-line... | |
117 | */ | |
118 | ||
119 | if (argc == 1) | |
120 | { | |
121 | list_devices(); | |
122 | return (CUPS_BACKEND_OK); | |
123 | } | |
124 | else if (argc < 6 || argc > 7) | |
125 | { | |
db1f069b | 126 | _cupsLangPrintf(stderr, |
0837b7e8 | 127 | _("Usage: %s job-id user title copies options [file]"), |
db1f069b | 128 | argv[0]); |
ef416fc2 | 129 | return (CUPS_BACKEND_FAILED); |
130 | } | |
131 | ||
132 | /* | |
133 | * If we have 7 arguments, print the file named on the command-line. | |
134 | * Otherwise, send stdin instead... | |
135 | */ | |
136 | ||
137 | if (argc == 6) | |
138 | { | |
ed486911 | 139 | print_fd = 0; |
140 | copies = 1; | |
ef416fc2 | 141 | } |
142 | else | |
143 | { | |
144 | /* | |
145 | * Try to open the print file... | |
146 | */ | |
147 | ||
ed486911 | 148 | if ((print_fd = open(argv[6], O_RDONLY)) < 0) |
ef416fc2 | 149 | { |
0837b7e8 | 150 | _cupsLangPrintError("ERROR", _("Unable to open print file")); |
ef416fc2 | 151 | return (CUPS_BACKEND_FAILED); |
152 | } | |
153 | ||
154 | copies = atoi(argv[4]); | |
155 | } | |
156 | ||
157 | /* | |
158 | * Extract the device name and options from the URI... | |
159 | */ | |
160 | ||
a4d04587 | 161 | httpSeparateURI(HTTP_URI_CODING_ALL, cupsBackendDeviceURI(argv), |
162 | method, sizeof(method), username, sizeof(username), | |
163 | hostname, sizeof(hostname), &port, | |
ef416fc2 | 164 | resource, sizeof(resource)); |
165 | ||
166 | /* | |
167 | * See if there are any options... | |
168 | */ | |
169 | ||
170 | if ((options = strchr(resource, '?')) != NULL) | |
171 | { | |
172 | /* | |
173 | * Yup, terminate the device name string and move to the first | |
174 | * character of the options... | |
175 | */ | |
176 | ||
177 | *options++ = '\0'; | |
178 | } | |
179 | ||
180 | /* | |
181 | * Open the parallel port device... | |
182 | */ | |
183 | ||
757d2cad | 184 | fputs("STATE: +connecting-to-device\n", stderr); |
185 | ||
ef416fc2 | 186 | do |
187 | { | |
b86bc4cf | 188 | #if defined(__linux) || defined(__FreeBSD__) |
26d47ec6 | 189 | /* |
b86bc4cf | 190 | * The Linux and FreeBSD parallel port drivers currently are broken WRT |
191 | * select() and bidirection I/O... | |
26d47ec6 | 192 | */ |
193 | ||
194 | device_fd = open(resource, O_WRONLY | O_EXCL); | |
195 | use_bc = 0; | |
196 | ||
197 | #else | |
198 | if ((device_fd = open(resource, O_RDWR | O_EXCL)) < 0) | |
199 | { | |
200 | device_fd = open(resource, O_WRONLY | O_EXCL); | |
201 | use_bc = 0; | |
202 | } | |
203 | else | |
204 | use_bc = 1; | |
b86bc4cf | 205 | #endif /* __linux || __FreeBSD__ */ |
26d47ec6 | 206 | |
207 | if (device_fd == -1) | |
ef416fc2 | 208 | { |
209 | if (getenv("CLASS") != NULL) | |
210 | { | |
211 | /* | |
212 | * If the CLASS environment variable is set, the job was submitted | |
213 | * to a class and not to a specific queue. In this case, we want | |
214 | * to abort immediately so that the job can be requeued on the next | |
215 | * available printer in the class. | |
216 | */ | |
217 | ||
0837b7e8 MS |
218 | _cupsLangPrintFilter(stderr, "INFO", |
219 | _("Unable to contact printer, queuing on next " | |
220 | "printer in class.")); | |
ef416fc2 | 221 | |
222 | /* | |
223 | * Sleep 5 seconds to keep the job from requeuing too rapidly... | |
224 | */ | |
225 | ||
226 | sleep(5); | |
227 | ||
228 | return (CUPS_BACKEND_FAILED); | |
229 | } | |
230 | ||
231 | if (errno == EBUSY) | |
232 | { | |
0837b7e8 MS |
233 | _cupsLangPrintFilter(stderr, "INFO", |
234 | _("Printer busy; will retry in 30 seconds.")); | |
ef416fc2 | 235 | sleep(30); |
236 | } | |
237 | else if (errno == ENXIO || errno == EIO || errno == ENOENT) | |
238 | { | |
0837b7e8 MS |
239 | _cupsLangPrintFilter(stderr, "INFO", |
240 | _("Printer not connected; will retry in 30 " | |
241 | "seconds.")); | |
ef416fc2 | 242 | sleep(30); |
243 | } | |
244 | else | |
245 | { | |
0837b7e8 | 246 | _cupsLangPrintError("ERROR", _("Unable to open device file")); |
ef416fc2 | 247 | return (CUPS_BACKEND_FAILED); |
248 | } | |
249 | } | |
250 | } | |
ed486911 | 251 | while (device_fd < 0); |
ef416fc2 | 252 | |
757d2cad | 253 | fputs("STATE: -connecting-to-device\n", stderr); |
254 | ||
ef416fc2 | 255 | /* |
256 | * Set any options provided... | |
257 | */ | |
258 | ||
ed486911 | 259 | tcgetattr(device_fd, &opts); |
ef416fc2 | 260 | |
261 | opts.c_lflag &= ~(ICANON | ECHO | ISIG); /* Raw mode */ | |
262 | ||
263 | /**** No options supported yet ****/ | |
264 | ||
ed486911 | 265 | tcsetattr(device_fd, TCSANOW, &opts); |
ef416fc2 | 266 | |
ef416fc2 | 267 | /* |
268 | * Finally, send the print file... | |
269 | */ | |
270 | ||
ed486911 | 271 | tbytes = 0; |
ef416fc2 | 272 | |
ed486911 | 273 | while (copies > 0 && tbytes >= 0) |
ef416fc2 | 274 | { |
275 | copies --; | |
276 | ||
ed486911 | 277 | if (print_fd != 0) |
ef416fc2 | 278 | { |
279 | fputs("PAGE: 1 1\n", stderr); | |
ed486911 | 280 | lseek(print_fd, 0, SEEK_SET); |
ef416fc2 | 281 | } |
282 | ||
ef55b745 | 283 | tbytes = backendRunLoop(print_fd, device_fd, -1, NULL, use_bc, 1, side_cb); |
ef416fc2 | 284 | |
ed486911 | 285 | if (print_fd != 0 && tbytes >= 0) |
0837b7e8 | 286 | _cupsLangPrintFilter(stderr, "INFO", _("Print file sent.")); |
ef416fc2 | 287 | } |
288 | ||
289 | /* | |
290 | * Close the socket connection and input file and return... | |
291 | */ | |
292 | ||
ed486911 | 293 | close(device_fd); |
294 | ||
295 | if (print_fd != 0) | |
296 | close(print_fd); | |
ef416fc2 | 297 | |
c8fef167 | 298 | return (CUPS_BACKEND_OK); |
ef416fc2 | 299 | } |
300 | ||
301 | ||
302 | /* | |
303 | * 'list_devices()' - List all parallel devices. | |
304 | */ | |
305 | ||
f7deaa1a | 306 | static void |
ef416fc2 | 307 | list_devices(void) |
308 | { | |
309 | #if defined(__hpux) || defined(__sgi) || defined(__sun) | |
310 | static char *funky_hex = "0123456789abcdefghijklmnopqrstuvwxyz"; | |
311 | /* Funky hex numbering used for some devices */ | |
312 | #endif /* __hpux || __sgi || __sun */ | |
313 | ||
314 | #ifdef __linux | |
315 | int i; /* Looping var */ | |
316 | int fd; /* File descriptor */ | |
317 | char device[255], /* Device filename */ | |
318 | basedevice[255], /* Base device filename for ports */ | |
319 | device_id[1024], /* Device ID string */ | |
2e4ff8af | 320 | make_model[1024], /* Make and model */ |
749b1e90 | 321 | info[1024], /* Info string */ |
2e4ff8af | 322 | uri[1024]; /* Device URI */ |
ef416fc2 | 323 | |
324 | ||
325 | if (!access("/dev/parallel/", 0)) | |
326 | strcpy(basedevice, "/dev/parallel/"); | |
327 | else if (!access("/dev/printers/", 0)) | |
328 | strcpy(basedevice, "/dev/printers/"); | |
ef416fc2 | 329 | else |
330 | strcpy(basedevice, "/dev/lp"); | |
331 | ||
332 | for (i = 0; i < 4; i ++) | |
333 | { | |
334 | /* | |
335 | * Open the port, if available... | |
336 | */ | |
337 | ||
338 | sprintf(device, "%s%d", basedevice, i); | |
339 | if ((fd = open(device, O_RDWR | O_EXCL)) < 0) | |
340 | fd = open(device, O_WRONLY); | |
341 | ||
342 | if (fd >= 0) | |
343 | { | |
344 | /* | |
345 | * Now grab the IEEE 1284 device ID string... | |
346 | */ | |
347 | ||
2e4ff8af MS |
348 | snprintf(uri, sizeof(uri), "parallel:%s", device); |
349 | ||
ed486911 | 350 | if (!backendGetDeviceID(fd, device_id, sizeof(device_id), |
351 | make_model, sizeof(make_model), | |
2e4ff8af | 352 | NULL, uri, sizeof(uri))) |
749b1e90 MS |
353 | { |
354 | snprintf(info, sizeof(info), "%s LPT #%d", make_model, i + 1); | |
355 | cupsBackendReport("direct", uri, make_model, info, device_id, NULL); | |
356 | } | |
ef416fc2 | 357 | else |
749b1e90 MS |
358 | { |
359 | snprintf(info, sizeof(info), "LPT #%d", i + 1); | |
360 | cupsBackendReport("direct", uri, NULL, info, NULL, NULL); | |
361 | } | |
ef416fc2 | 362 | |
363 | close(fd); | |
364 | } | |
365 | } | |
366 | #elif defined(__sgi) | |
367 | int i, j, n; /* Looping vars */ | |
368 | char device[255]; /* Device filename */ | |
369 | inventory_t *inv; /* Hardware inventory info */ | |
370 | ||
371 | ||
372 | /* | |
373 | * IRIX maintains a hardware inventory of most devices... | |
374 | */ | |
375 | ||
376 | setinvent(); | |
377 | ||
378 | while ((inv = getinvent()) != NULL) | |
379 | { | |
380 | if (inv->inv_class == INV_PARALLEL && | |
381 | (inv->inv_type == INV_ONBOARD_PLP || | |
382 | inv->inv_type == INV_EPP_ECP_PLP)) | |
383 | { | |
384 | /* | |
385 | * Standard parallel port... | |
386 | */ | |
387 | ||
388 | puts("direct parallel:/dev/plp \"Unknown\" \"Onboard Parallel Port\""); | |
389 | } | |
390 | else if (inv->inv_class == INV_PARALLEL && | |
391 | inv->inv_type == INV_EPC_PLP) | |
392 | { | |
393 | /* | |
394 | * EPC parallel port... | |
395 | */ | |
396 | ||
397 | printf("direct parallel:/dev/plp%d \"Unknown\" \"Integral EPC parallel port, Ebus slot %d\"\n", | |
398 | inv->inv_controller, inv->inv_controller); | |
399 | } | |
400 | } | |
401 | ||
402 | endinvent(); | |
403 | ||
404 | /* | |
405 | * Central Data makes serial and parallel "servers" that can be | |
406 | * connected in a number of ways. Look for ports... | |
407 | */ | |
408 | ||
409 | for (i = 0; i < 10; i ++) | |
410 | for (j = 0; j < 8; j ++) | |
411 | for (n = 0; n < 32; n ++) | |
412 | { | |
413 | if (i == 8) /* EtherLite */ | |
414 | sprintf(device, "/dev/lpn%d%c", j, funky_hex[n]); | |
415 | else if (i == 9) /* PCI */ | |
416 | sprintf(device, "/dev/lpp%d%c", j, funky_hex[n]); | |
417 | else /* SCSI */ | |
418 | sprintf(device, "/dev/lp%d%d%c", i, j, funky_hex[n]); | |
419 | ||
420 | if (access(device, 0) == 0) | |
421 | { | |
422 | if (i == 8) | |
423 | printf("direct parallel:%s \"Unknown\" \"Central Data EtherLite Parallel Port, ID %d, port %d\"\n", | |
424 | device, j, n); | |
425 | else if (i == 9) | |
426 | printf("direct parallel:%s \"Unknown\" \"Central Data PCI Parallel Port, ID %d, port %d\"\n", | |
427 | device, j, n); | |
428 | else | |
429 | printf("direct parallel:%s \"Unknown\" \"Central Data SCSI Parallel Port, logical bus %d, ID %d, port %d\"\n", | |
430 | device, i, j, n); | |
431 | } | |
432 | } | |
433 | #elif defined(__sun) | |
434 | int i, j, n; /* Looping vars */ | |
435 | char device[255]; /* Device filename */ | |
436 | ||
437 | ||
438 | /* | |
439 | * Standard parallel ports... | |
440 | */ | |
441 | ||
442 | for (i = 0; i < 10; i ++) | |
443 | { | |
444 | sprintf(device, "/dev/ecpp%d", i); | |
445 | if (access(device, 0) == 0) | |
446 | printf("direct parallel:%s \"Unknown\" \"Sun IEEE-1284 Parallel Port #%d\"\n", | |
447 | device, i + 1); | |
448 | } | |
449 | ||
450 | for (i = 0; i < 10; i ++) | |
451 | { | |
452 | sprintf(device, "/dev/bpp%d", i); | |
453 | if (access(device, 0) == 0) | |
454 | printf("direct parallel:%s \"Unknown\" \"Sun Standard Parallel Port #%d\"\n", | |
455 | device, i + 1); | |
456 | } | |
457 | ||
458 | for (i = 0; i < 3; i ++) | |
459 | { | |
460 | sprintf(device, "/dev/lp%d", i); | |
461 | ||
462 | if (access(device, 0) == 0) | |
463 | printf("direct parallel:%s \"Unknown\" \"PC Parallel Port #%d\"\n", | |
464 | device, i + 1); | |
465 | } | |
466 | ||
467 | /* | |
468 | * MAGMA parallel ports... | |
469 | */ | |
470 | ||
471 | for (i = 0; i < 40; i ++) | |
472 | { | |
473 | sprintf(device, "/dev/pm%02d", i); | |
474 | if (access(device, 0) == 0) | |
475 | printf("direct parallel:%s \"Unknown\" \"MAGMA Parallel Board #%d Port #%d\"\n", | |
476 | device, (i / 10) + 1, (i % 10) + 1); | |
477 | } | |
478 | ||
479 | /* | |
480 | * Central Data parallel ports... | |
481 | */ | |
482 | ||
483 | for (i = 0; i < 9; i ++) | |
484 | for (j = 0; j < 8; j ++) | |
485 | for (n = 0; n < 32; n ++) | |
486 | { | |
487 | if (i == 8) /* EtherLite */ | |
488 | sprintf(device, "/dev/sts/lpN%d%c", j, funky_hex[n]); | |
489 | else | |
490 | sprintf(device, "/dev/sts/lp%c%d%c", i + 'C', j, | |
491 | funky_hex[n]); | |
492 | ||
493 | if (access(device, 0) == 0) | |
494 | { | |
495 | if (i == 8) | |
496 | printf("direct parallel:%s \"Unknown\" \"Central Data EtherLite Parallel Port, ID %d, port %d\"\n", | |
497 | device, j, n); | |
498 | else | |
499 | printf("direct parallel:%s \"Unknown\" \"Central Data SCSI Parallel Port, logical bus %d, ID %d, port %d\"\n", | |
500 | device, i, j, n); | |
501 | } | |
502 | } | |
503 | #elif defined(__hpux) | |
504 | int i, j, n; /* Looping vars */ | |
505 | char device[255]; /* Device filename */ | |
506 | ||
507 | ||
508 | /* | |
509 | * Standard parallel ports... | |
510 | */ | |
511 | ||
512 | if (access("/dev/rlp", 0) == 0) | |
513 | puts("direct parallel:/dev/rlp \"Unknown\" \"Standard Parallel Port (/dev/rlp)\""); | |
514 | ||
515 | for (i = 0; i < 7; i ++) | |
516 | for (j = 0; j < 7; j ++) | |
517 | { | |
518 | sprintf(device, "/dev/c%dt%dd0_lp", i, j); | |
519 | if (access(device, 0) == 0) | |
520 | printf("direct parallel:%s \"Unknown\" \"Parallel Port #%d,%d\"\n", | |
521 | device, i, j); | |
522 | } | |
523 | ||
524 | /* | |
525 | * Central Data parallel ports... | |
526 | */ | |
527 | ||
528 | for (i = 0; i < 9; i ++) | |
529 | for (j = 0; j < 8; j ++) | |
530 | for (n = 0; n < 32; n ++) | |
531 | { | |
532 | if (i == 8) /* EtherLite */ | |
533 | sprintf(device, "/dev/lpN%d%c", j, funky_hex[n]); | |
534 | else | |
535 | sprintf(device, "/dev/lp%c%d%c", i + 'C', j, | |
536 | funky_hex[n]); | |
537 | ||
538 | if (access(device, 0) == 0) | |
539 | { | |
540 | if (i == 8) | |
541 | printf("direct parallel:%s \"Unknown\" \"Central Data EtherLite Parallel Port, ID %d, port %d\"\n", | |
542 | device, j, n); | |
543 | else | |
544 | printf("direct parallel:%s \"Unknown\" \"Central Data SCSI Parallel Port, logical bus %d, ID %d, port %d\"\n", | |
545 | device, i, j, n); | |
546 | } | |
547 | } | |
548 | #elif defined(__osf__) | |
549 | int i; /* Looping var */ | |
550 | int fd; /* File descriptor */ | |
551 | char device[255]; /* Device filename */ | |
552 | ||
553 | ||
554 | for (i = 0; i < 3; i ++) | |
555 | { | |
556 | sprintf(device, "/dev/lp%d", i); | |
557 | if ((fd = open(device, O_WRONLY)) >= 0) | |
558 | { | |
559 | close(fd); | |
560 | printf("direct parallel:%s \"Unknown\" \"Parallel Port #%d\"\n", device, i + 1); | |
561 | } | |
562 | } | |
2e4ff8af | 563 | #elif defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__) |
ef416fc2 | 564 | int i; /* Looping var */ |
565 | int fd; /* File descriptor */ | |
566 | char device[255]; /* Device filename */ | |
567 | ||
568 | ||
569 | for (i = 0; i < 3; i ++) | |
570 | { | |
571 | sprintf(device, "/dev/lpt%d", i); | |
572 | if ((fd = open(device, O_WRONLY)) >= 0) | |
573 | { | |
574 | close(fd); | |
575 | printf("direct parallel:%s \"Unknown\" \"Parallel Port #%d (interrupt-driven)\"\n", device, i + 1); | |
576 | } | |
577 | ||
578 | sprintf(device, "/dev/lpa%d", i); | |
579 | if ((fd = open(device, O_WRONLY)) >= 0) | |
580 | { | |
581 | close(fd); | |
582 | printf("direct parallel:%s \"Unknown\" \"Parallel Port #%d (polled)\"\n", device, i + 1); | |
583 | } | |
584 | } | |
585 | #elif defined(_AIX) | |
586 | int i; /* Looping var */ | |
587 | int fd; /* File descriptor */ | |
588 | char device[255]; /* Device filename */ | |
589 | ||
590 | ||
591 | for (i = 0; i < 8; i ++) | |
592 | { | |
593 | sprintf(device, "/dev/lp%d", i); | |
594 | if ((fd = open(device, O_WRONLY)) >= 0) | |
595 | { | |
596 | close(fd); | |
597 | printf("direct parallel:%s \"Unknown\" \"Parallel Port #%d\"\n", device, i + 1); | |
598 | } | |
599 | } | |
600 | #endif | |
601 | } | |
602 | ||
603 | ||
604 | /* | |
f7deaa1a | 605 | * 'side_cb()' - Handle side-channel requests... |
606 | */ | |
607 | ||
18ecb428 | 608 | static int /* O - 0 on success, -1 on error */ |
568fa3fa MS |
609 | side_cb(int print_fd, /* I - Print file */ |
610 | int device_fd, /* I - Device file */ | |
611 | int snmp_fd, /* I - SNMP socket (unused) */ | |
612 | http_addr_t *addr, /* I - Device address (unused) */ | |
613 | int use_bc) /* I - Using back-channel? */ | |
f7deaa1a | 614 | { |
615 | cups_sc_command_t command; /* Request command */ | |
616 | cups_sc_status_t status; /* Request/response status */ | |
617 | char data[2048]; /* Request/response data */ | |
618 | int datalen; /* Request/response data size */ | |
619 | ||
620 | ||
568fa3fa MS |
621 | (void)snmp_fd; |
622 | (void)addr; | |
623 | ||
f7deaa1a | 624 | datalen = sizeof(data); |
625 | ||
626 | if (cupsSideChannelRead(&command, &status, data, &datalen, 1.0)) | |
18ecb428 | 627 | return (-1); |
f7deaa1a | 628 | |
629 | switch (command) | |
630 | { | |
631 | case CUPS_SC_CMD_DRAIN_OUTPUT : | |
09a101d6 | 632 | if (backendDrainOutput(print_fd, device_fd)) |
633 | status = CUPS_SC_STATUS_IO_ERROR; | |
634 | else if (tcdrain(device_fd)) | |
f7deaa1a | 635 | status = CUPS_SC_STATUS_IO_ERROR; |
636 | else | |
637 | status = CUPS_SC_STATUS_OK; | |
638 | ||
639 | datalen = 0; | |
640 | break; | |
641 | ||
642 | case CUPS_SC_CMD_GET_BIDI : | |
8b450588 | 643 | status = CUPS_SC_STATUS_OK; |
f7deaa1a | 644 | data[0] = use_bc; |
645 | datalen = 1; | |
646 | break; | |
647 | ||
648 | case CUPS_SC_CMD_GET_DEVICE_ID : | |
649 | memset(data, 0, sizeof(data)); | |
650 | ||
651 | if (backendGetDeviceID(device_fd, data, sizeof(data) - 1, | |
652 | NULL, 0, NULL, NULL, 0)) | |
653 | { | |
654 | status = CUPS_SC_STATUS_NOT_IMPLEMENTED; | |
655 | datalen = 0; | |
656 | } | |
657 | else | |
658 | { | |
659 | status = CUPS_SC_STATUS_OK; | |
660 | datalen = strlen(data); | |
661 | } | |
662 | break; | |
663 | ||
664 | default : | |
665 | status = CUPS_SC_STATUS_NOT_IMPLEMENTED; | |
666 | datalen = 0; | |
667 | break; | |
668 | } | |
669 | ||
18ecb428 | 670 | return (cupsSideChannelWrite(command, status, data, datalen, 1.0)); |
f7deaa1a | 671 | } |
672 | ||
673 | ||
674 | /* | |
b19ccc9e | 675 | * End of "$Id: parallel.c 7810 2008-07-29 01:11:15Z mike $". |
ef416fc2 | 676 | */ |