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ef416fc2 | 1 | /* |
2 | * "$Id: parallel.c 4906 2006-01-10 20:53:28Z mike $" | |
3 | * | |
4 | * Parallel port backend for the Common UNIX Printing System (CUPS). | |
5 | * | |
6 | * Copyright 1997-2006 by Easy Software Products, all rights reserved. | |
7 | * | |
8 | * These coded instructions, statements, and computer programs are the | |
9 | * property of Easy Software Products and are protected by Federal | |
10 | * copyright law. Distribution and use rights are outlined in the file | |
11 | * "LICENSE" which should have been included with this file. If this | |
12 | * file is missing or damaged please contact Easy Software Products | |
13 | * at: | |
14 | * | |
15 | * Attn: CUPS Licensing Information | |
16 | * Easy Software Products | |
17 | * 44141 Airport View Drive, Suite 204 | |
18 | * Hollywood, Maryland 20636 USA | |
19 | * | |
20 | * Voice: (301) 373-9600 | |
21 | * EMail: cups-info@cups.org | |
22 | * WWW: http://www.cups.org | |
23 | * | |
24 | * This file is subject to the Apple OS-Developed Software exception. | |
25 | * | |
26 | * Contents: | |
27 | * | |
28 | * main() - Send a file to the specified parallel port. | |
29 | * list_devices() - List all parallel devices. | |
30 | */ | |
31 | ||
32 | /* | |
33 | * Include necessary headers. | |
34 | */ | |
35 | ||
36 | #include <cups/backend.h> | |
37 | #include <cups/cups.h> | |
38 | #include <stdio.h> | |
39 | #include <stdlib.h> | |
40 | #include <errno.h> | |
41 | #include <cups/string.h> | |
42 | #include <signal.h> | |
43 | #include <sys/select.h> | |
44 | #include "ieee1284.c" | |
45 | ||
46 | #ifdef WIN32 | |
47 | # include <io.h> | |
48 | #else | |
49 | # include <unistd.h> | |
50 | # include <fcntl.h> | |
51 | # include <termios.h> | |
52 | # include <sys/socket.h> | |
53 | #endif /* WIN32 */ | |
54 | ||
55 | #ifdef __sgi | |
56 | # include <invent.h> | |
57 | # ifndef INV_EPP_ECP_PLP | |
58 | # define INV_EPP_ECP_PLP 6 /* From 6.3/6.4/6.5 sys/invent.h */ | |
59 | # define INV_ASO_SERIAL 14 /* serial portion of SGI ASO board */ | |
60 | # define INV_IOC3_DMA 16 /* DMA mode IOC3 serial */ | |
61 | # define INV_IOC3_PIO 17 /* PIO mode IOC3 serial */ | |
62 | # define INV_ISA_DMA 19 /* DMA mode ISA serial -- O2 */ | |
63 | # endif /* !INV_EPP_ECP_PLP */ | |
64 | #endif /* __sgi */ | |
65 | ||
66 | ||
67 | /* | |
68 | * Local functions... | |
69 | */ | |
70 | ||
71 | void list_devices(void); | |
72 | ||
73 | ||
74 | /* | |
75 | * 'main()' - Send a file to the specified parallel port. | |
76 | * | |
77 | * Usage: | |
78 | * | |
79 | * printer-uri job-id user title copies options [file] | |
80 | */ | |
81 | ||
82 | int /* O - Exit status */ | |
83 | main(int argc, /* I - Number of command-line arguments (6 or 7) */ | |
84 | char *argv[]) /* I - Command-line arguments */ | |
85 | { | |
86 | char method[255], /* Method in URI */ | |
87 | hostname[1024], /* Hostname */ | |
88 | username[255], /* Username info (not used) */ | |
89 | resource[1024], /* Resource info (device and options) */ | |
90 | *options; /* Pointer to options */ | |
91 | int port; /* Port number (not used) */ | |
92 | int fp; /* Print file */ | |
93 | int copies; /* Number of copies to print */ | |
94 | int fd; /* Parallel device */ | |
95 | int rbytes; /* Number of bytes read */ | |
96 | int wbytes; /* Number of bytes written */ | |
97 | size_t nbytes, /* Number of bytes read */ | |
98 | tbytes; /* Total number of bytes written */ | |
99 | char buffer[8192], /* Output buffer */ | |
100 | *bufptr; /* Pointer into buffer */ | |
101 | struct termios opts; /* Parallel port options */ | |
102 | fd_set input, /* Input set for select() */ | |
103 | output; /* Output set for select() */ | |
104 | int paperout; /* Paper out? */ | |
105 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) | |
106 | struct sigaction action; /* Actions for POSIX signals */ | |
107 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
108 | #ifdef __linux | |
109 | unsigned int status; /* Port status (off-line, out-of-paper, etc.) */ | |
110 | #endif /* __linux */ | |
111 | ||
112 | ||
113 | /* | |
114 | * Make sure status messages are not buffered... | |
115 | */ | |
116 | ||
117 | setbuf(stderr, NULL); | |
118 | ||
119 | /* | |
120 | * Ignore SIGPIPE signals... | |
121 | */ | |
122 | ||
123 | #ifdef HAVE_SIGSET | |
124 | sigset(SIGPIPE, SIG_IGN); | |
125 | #elif defined(HAVE_SIGACTION) | |
126 | memset(&action, 0, sizeof(action)); | |
127 | action.sa_handler = SIG_IGN; | |
128 | sigaction(SIGPIPE, &action, NULL); | |
129 | #else | |
130 | signal(SIGPIPE, SIG_IGN); | |
131 | #endif /* HAVE_SIGSET */ | |
132 | ||
133 | /* | |
134 | * Check command-line... | |
135 | */ | |
136 | ||
137 | if (argc == 1) | |
138 | { | |
139 | list_devices(); | |
140 | return (CUPS_BACKEND_OK); | |
141 | } | |
142 | else if (argc < 6 || argc > 7) | |
143 | { | |
144 | fputs("Usage: parallel job-id user title copies options [file]\n", stderr); | |
145 | return (CUPS_BACKEND_FAILED); | |
146 | } | |
147 | ||
148 | /* | |
149 | * If we have 7 arguments, print the file named on the command-line. | |
150 | * Otherwise, send stdin instead... | |
151 | */ | |
152 | ||
153 | if (argc == 6) | |
154 | { | |
155 | fp = 0; | |
156 | copies = 1; | |
157 | } | |
158 | else | |
159 | { | |
160 | /* | |
161 | * Try to open the print file... | |
162 | */ | |
163 | ||
164 | if ((fp = open(argv[6], O_RDONLY)) < 0) | |
165 | { | |
166 | perror("ERROR: unable to open print file"); | |
167 | return (CUPS_BACKEND_FAILED); | |
168 | } | |
169 | ||
170 | copies = atoi(argv[4]); | |
171 | } | |
172 | ||
173 | /* | |
174 | * Extract the device name and options from the URI... | |
175 | */ | |
176 | ||
177 | httpSeparateURI(argv[0], method, sizeof(method), username, sizeof(username), | |
178 | hostname, sizeof(hostname), &port, | |
179 | resource, sizeof(resource)); | |
180 | ||
181 | /* | |
182 | * See if there are any options... | |
183 | */ | |
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 | /* | |
196 | * Open the parallel port device... | |
197 | */ | |
198 | ||
199 | do | |
200 | { | |
201 | if ((fd = open(resource, O_WRONLY | O_EXCL)) == -1) | |
202 | { | |
203 | if (getenv("CLASS") != NULL) | |
204 | { | |
205 | /* | |
206 | * If the CLASS environment variable is set, the job was submitted | |
207 | * to a class and not to a specific queue. In this case, we want | |
208 | * to abort immediately so that the job can be requeued on the next | |
209 | * available printer in the class. | |
210 | */ | |
211 | ||
212 | fputs("INFO: Unable to open parallel port, queuing on next printer in class...\n", | |
213 | stderr); | |
214 | ||
215 | /* | |
216 | * Sleep 5 seconds to keep the job from requeuing too rapidly... | |
217 | */ | |
218 | ||
219 | sleep(5); | |
220 | ||
221 | return (CUPS_BACKEND_FAILED); | |
222 | } | |
223 | ||
224 | if (errno == EBUSY) | |
225 | { | |
226 | fputs("INFO: Parallel port busy; will retry in 30 seconds...\n", stderr); | |
227 | sleep(30); | |
228 | } | |
229 | else if (errno == ENXIO || errno == EIO || errno == ENOENT) | |
230 | { | |
231 | fputs("INFO: Printer not connected; will retry in 30 seconds...\n", stderr); | |
232 | sleep(30); | |
233 | } | |
234 | else | |
235 | { | |
236 | fprintf(stderr, "ERROR: Unable to open parallel port device file \"%s\": %s\n", | |
237 | resource, strerror(errno)); | |
238 | return (CUPS_BACKEND_FAILED); | |
239 | } | |
240 | } | |
241 | } | |
242 | while (fd < 0); | |
243 | ||
244 | /* | |
245 | * Set any options provided... | |
246 | */ | |
247 | ||
248 | tcgetattr(fd, &opts); | |
249 | ||
250 | opts.c_lflag &= ~(ICANON | ECHO | ISIG); /* Raw mode */ | |
251 | ||
252 | /**** No options supported yet ****/ | |
253 | ||
254 | tcsetattr(fd, TCSANOW, &opts); | |
255 | ||
256 | /* | |
257 | * Check printer status... | |
258 | */ | |
259 | ||
260 | paperout = 0; | |
261 | ||
262 | #if defined(__linux) && defined(LP_POUTPA) | |
263 | /* | |
264 | * Show the printer status before we send the file... | |
265 | */ | |
266 | ||
267 | while (!ioctl(fd, LPGETSTATUS, &status)) | |
268 | { | |
269 | fprintf(stderr, "DEBUG: LPGETSTATUS returned a port status of %02X...\n", status); | |
270 | ||
271 | if (status & LP_POUTPA) | |
272 | { | |
273 | fputs("WARNING: Media tray empty!\n", stderr); | |
274 | fputs("STATUS: +media-tray-empty-error\n", stderr); | |
275 | ||
276 | paperout = 1; | |
277 | } | |
278 | ||
279 | if (!(status & LP_PERRORP)) | |
280 | fputs("WARNING: Printer fault!\n", stderr); | |
281 | else if (!(status & LP_PSELECD)) | |
282 | fputs("WARNING: Printer off-line.\n", stderr); | |
283 | else | |
284 | break; | |
285 | ||
286 | sleep(5); | |
287 | } | |
288 | #endif /* __linux && LP_POUTPA */ | |
289 | ||
290 | /* | |
291 | * Now that we are "connected" to the port, ignore SIGTERM so that we | |
292 | * can finish out any page data the driver sends (e.g. to eject the | |
293 | * current page... Only ignore SIGTERM if we are printing data from | |
294 | * stdin (otherwise you can't cancel raw jobs...) | |
295 | */ | |
296 | ||
297 | if (argc < 7) | |
298 | { | |
299 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ | |
300 | sigset(SIGTERM, SIG_IGN); | |
301 | #elif defined(HAVE_SIGACTION) | |
302 | memset(&action, 0, sizeof(action)); | |
303 | ||
304 | sigemptyset(&action.sa_mask); | |
305 | action.sa_handler = SIG_IGN; | |
306 | sigaction(SIGTERM, &action, NULL); | |
307 | #else | |
308 | signal(SIGTERM, SIG_IGN); | |
309 | #endif /* HAVE_SIGSET */ | |
310 | } | |
311 | ||
312 | /* | |
313 | * Finally, send the print file... | |
314 | */ | |
315 | ||
316 | wbytes = 0; | |
317 | ||
318 | while (copies > 0) | |
319 | { | |
320 | copies --; | |
321 | ||
322 | if (fp != 0) | |
323 | { | |
324 | fputs("PAGE: 1 1\n", stderr); | |
325 | lseek(fp, 0, SEEK_SET); | |
326 | } | |
327 | ||
328 | tbytes = 0; | |
329 | while ((nbytes = read(fp, buffer, sizeof(buffer))) > 0) | |
330 | { | |
331 | /* | |
332 | * Write the print data to the printer... | |
333 | */ | |
334 | ||
335 | tbytes += nbytes; | |
336 | bufptr = buffer; | |
337 | ||
338 | while (nbytes > 0) | |
339 | { | |
340 | /* | |
341 | * See if we are ready to read or write... | |
342 | */ | |
343 | ||
344 | do | |
345 | { | |
346 | FD_ZERO(&input); | |
347 | FD_SET(fd, &input); | |
348 | FD_ZERO(&output); | |
349 | FD_SET(fd, &output); | |
350 | } | |
351 | while (select(fd + 1, &input, &output, NULL, NULL) < 0); | |
352 | ||
353 | if (FD_ISSET(fd, &input)) | |
354 | { | |
355 | /* | |
356 | * Read backchannel data... | |
357 | */ | |
358 | ||
359 | if ((rbytes = read(fd, resource, sizeof(resource))) > 0) | |
360 | { | |
361 | fprintf(stderr, "DEBUG: Received %d bytes of back-channel data!\n", | |
362 | rbytes); | |
363 | cupsBackchannelWrite(resource, rbytes, 1.0); | |
364 | } | |
365 | } | |
366 | ||
367 | if (FD_ISSET(fd, &output)) | |
368 | { | |
369 | /* | |
370 | * Write print data... | |
371 | */ | |
372 | ||
373 | if ((wbytes = write(fd, bufptr, nbytes)) < 0) | |
374 | if (errno == ENOTTY) | |
375 | wbytes = write(fd, bufptr, nbytes); | |
376 | ||
377 | if (wbytes < 0) | |
378 | { | |
379 | /* | |
380 | * Check for retryable errors... | |
381 | */ | |
382 | ||
383 | if (errno == ENOSPC) | |
384 | { | |
385 | paperout = 1; | |
386 | fputs("ERROR: Out of paper!\n", stderr); | |
387 | fputs("STATUS: +media-tray-empty-error\n", stderr); | |
388 | } | |
389 | else if (errno != EAGAIN && errno != EINTR) | |
390 | { | |
391 | perror("ERROR: Unable to send print file to printer"); | |
392 | break; | |
393 | } | |
394 | } | |
395 | else | |
396 | { | |
397 | /* | |
398 | * Update count and pointer... | |
399 | */ | |
400 | ||
401 | if (paperout) | |
402 | { | |
403 | fputs("STATUS: -media-tray-empty-error\n", stderr); | |
404 | paperout = 0; | |
405 | } | |
406 | ||
407 | nbytes -= wbytes; | |
408 | bufptr += wbytes; | |
409 | } | |
410 | } | |
411 | } | |
412 | ||
413 | if (wbytes < 0) | |
414 | break; | |
415 | ||
416 | if (argc > 6) | |
417 | fprintf(stderr, "INFO: Sending print file, %lu bytes...\n", | |
418 | (unsigned long)tbytes); | |
419 | } | |
420 | } | |
421 | ||
422 | /* | |
423 | * Close the socket connection and input file and return... | |
424 | */ | |
425 | ||
426 | close(fd); | |
427 | if (fp != 0) | |
428 | close(fp); | |
429 | ||
430 | return (wbytes < 0 ? CUPS_BACKEND_FAILED : CUPS_BACKEND_OK); | |
431 | } | |
432 | ||
433 | ||
434 | /* | |
435 | * 'list_devices()' - List all parallel devices. | |
436 | */ | |
437 | ||
438 | void | |
439 | list_devices(void) | |
440 | { | |
441 | #if defined(__hpux) || defined(__sgi) || defined(__sun) | |
442 | static char *funky_hex = "0123456789abcdefghijklmnopqrstuvwxyz"; | |
443 | /* Funky hex numbering used for some devices */ | |
444 | #endif /* __hpux || __sgi || __sun */ | |
445 | ||
446 | #ifdef __linux | |
447 | int i; /* Looping var */ | |
448 | int fd; /* File descriptor */ | |
449 | char device[255], /* Device filename */ | |
450 | basedevice[255], /* Base device filename for ports */ | |
451 | device_id[1024], /* Device ID string */ | |
452 | make_model[1024]; /* Make and model */ | |
453 | ||
454 | ||
455 | if (!access("/dev/parallel/", 0)) | |
456 | strcpy(basedevice, "/dev/parallel/"); | |
457 | else if (!access("/dev/printers/", 0)) | |
458 | strcpy(basedevice, "/dev/printers/"); | |
459 | else if (!access("/dev/par0", 0)) | |
460 | strcpy(basedevice, "/dev/par"); | |
461 | else | |
462 | strcpy(basedevice, "/dev/lp"); | |
463 | ||
464 | for (i = 0; i < 4; i ++) | |
465 | { | |
466 | /* | |
467 | * Open the port, if available... | |
468 | */ | |
469 | ||
470 | sprintf(device, "%s%d", basedevice, i); | |
471 | if ((fd = open(device, O_RDWR | O_EXCL)) < 0) | |
472 | fd = open(device, O_WRONLY); | |
473 | ||
474 | if (fd >= 0) | |
475 | { | |
476 | /* | |
477 | * Now grab the IEEE 1284 device ID string... | |
478 | */ | |
479 | ||
480 | if (!get_device_id(fd, device_id, sizeof(device_id), | |
481 | make_model, sizeof(make_model), | |
482 | NULL, NULL, 0)) | |
483 | printf("direct parallel:%s \"%s\" \"%s LPT #%d\" \"%s\"\n", device, | |
484 | make_model, make_model, i + 1, device_id); | |
485 | else | |
486 | printf("direct parallel:%s \"Unknown\" \"LPT #%d\"\n", device, i + 1); | |
487 | ||
488 | close(fd); | |
489 | } | |
490 | } | |
491 | #elif defined(__sgi) | |
492 | int i, j, n; /* Looping vars */ | |
493 | char device[255]; /* Device filename */ | |
494 | inventory_t *inv; /* Hardware inventory info */ | |
495 | ||
496 | ||
497 | /* | |
498 | * IRIX maintains a hardware inventory of most devices... | |
499 | */ | |
500 | ||
501 | setinvent(); | |
502 | ||
503 | while ((inv = getinvent()) != NULL) | |
504 | { | |
505 | if (inv->inv_class == INV_PARALLEL && | |
506 | (inv->inv_type == INV_ONBOARD_PLP || | |
507 | inv->inv_type == INV_EPP_ECP_PLP)) | |
508 | { | |
509 | /* | |
510 | * Standard parallel port... | |
511 | */ | |
512 | ||
513 | puts("direct parallel:/dev/plp \"Unknown\" \"Onboard Parallel Port\""); | |
514 | } | |
515 | else if (inv->inv_class == INV_PARALLEL && | |
516 | inv->inv_type == INV_EPC_PLP) | |
517 | { | |
518 | /* | |
519 | * EPC parallel port... | |
520 | */ | |
521 | ||
522 | printf("direct parallel:/dev/plp%d \"Unknown\" \"Integral EPC parallel port, Ebus slot %d\"\n", | |
523 | inv->inv_controller, inv->inv_controller); | |
524 | } | |
525 | } | |
526 | ||
527 | endinvent(); | |
528 | ||
529 | /* | |
530 | * Central Data makes serial and parallel "servers" that can be | |
531 | * connected in a number of ways. Look for ports... | |
532 | */ | |
533 | ||
534 | for (i = 0; i < 10; i ++) | |
535 | for (j = 0; j < 8; j ++) | |
536 | for (n = 0; n < 32; n ++) | |
537 | { | |
538 | if (i == 8) /* EtherLite */ | |
539 | sprintf(device, "/dev/lpn%d%c", j, funky_hex[n]); | |
540 | else if (i == 9) /* PCI */ | |
541 | sprintf(device, "/dev/lpp%d%c", j, funky_hex[n]); | |
542 | else /* SCSI */ | |
543 | sprintf(device, "/dev/lp%d%d%c", i, j, funky_hex[n]); | |
544 | ||
545 | if (access(device, 0) == 0) | |
546 | { | |
547 | if (i == 8) | |
548 | printf("direct parallel:%s \"Unknown\" \"Central Data EtherLite Parallel Port, ID %d, port %d\"\n", | |
549 | device, j, n); | |
550 | else if (i == 9) | |
551 | printf("direct parallel:%s \"Unknown\" \"Central Data PCI Parallel Port, ID %d, port %d\"\n", | |
552 | device, j, n); | |
553 | else | |
554 | printf("direct parallel:%s \"Unknown\" \"Central Data SCSI Parallel Port, logical bus %d, ID %d, port %d\"\n", | |
555 | device, i, j, n); | |
556 | } | |
557 | } | |
558 | #elif defined(__sun) | |
559 | int i, j, n; /* Looping vars */ | |
560 | char device[255]; /* Device filename */ | |
561 | ||
562 | ||
563 | /* | |
564 | * Standard parallel ports... | |
565 | */ | |
566 | ||
567 | for (i = 0; i < 10; i ++) | |
568 | { | |
569 | sprintf(device, "/dev/ecpp%d", i); | |
570 | if (access(device, 0) == 0) | |
571 | printf("direct parallel:%s \"Unknown\" \"Sun IEEE-1284 Parallel Port #%d\"\n", | |
572 | device, i + 1); | |
573 | } | |
574 | ||
575 | for (i = 0; i < 10; i ++) | |
576 | { | |
577 | sprintf(device, "/dev/bpp%d", i); | |
578 | if (access(device, 0) == 0) | |
579 | printf("direct parallel:%s \"Unknown\" \"Sun Standard Parallel Port #%d\"\n", | |
580 | device, i + 1); | |
581 | } | |
582 | ||
583 | for (i = 0; i < 3; i ++) | |
584 | { | |
585 | sprintf(device, "/dev/lp%d", i); | |
586 | ||
587 | if (access(device, 0) == 0) | |
588 | printf("direct parallel:%s \"Unknown\" \"PC Parallel Port #%d\"\n", | |
589 | device, i + 1); | |
590 | } | |
591 | ||
592 | /* | |
593 | * MAGMA parallel ports... | |
594 | */ | |
595 | ||
596 | for (i = 0; i < 40; i ++) | |
597 | { | |
598 | sprintf(device, "/dev/pm%02d", i); | |
599 | if (access(device, 0) == 0) | |
600 | printf("direct parallel:%s \"Unknown\" \"MAGMA Parallel Board #%d Port #%d\"\n", | |
601 | device, (i / 10) + 1, (i % 10) + 1); | |
602 | } | |
603 | ||
604 | /* | |
605 | * Central Data parallel ports... | |
606 | */ | |
607 | ||
608 | for (i = 0; i < 9; i ++) | |
609 | for (j = 0; j < 8; j ++) | |
610 | for (n = 0; n < 32; n ++) | |
611 | { | |
612 | if (i == 8) /* EtherLite */ | |
613 | sprintf(device, "/dev/sts/lpN%d%c", j, funky_hex[n]); | |
614 | else | |
615 | sprintf(device, "/dev/sts/lp%c%d%c", i + 'C', j, | |
616 | funky_hex[n]); | |
617 | ||
618 | if (access(device, 0) == 0) | |
619 | { | |
620 | if (i == 8) | |
621 | printf("direct parallel:%s \"Unknown\" \"Central Data EtherLite Parallel Port, ID %d, port %d\"\n", | |
622 | device, j, n); | |
623 | else | |
624 | printf("direct parallel:%s \"Unknown\" \"Central Data SCSI Parallel Port, logical bus %d, ID %d, port %d\"\n", | |
625 | device, i, j, n); | |
626 | } | |
627 | } | |
628 | #elif defined(__hpux) | |
629 | int i, j, n; /* Looping vars */ | |
630 | char device[255]; /* Device filename */ | |
631 | ||
632 | ||
633 | /* | |
634 | * Standard parallel ports... | |
635 | */ | |
636 | ||
637 | if (access("/dev/rlp", 0) == 0) | |
638 | puts("direct parallel:/dev/rlp \"Unknown\" \"Standard Parallel Port (/dev/rlp)\""); | |
639 | ||
640 | for (i = 0; i < 7; i ++) | |
641 | for (j = 0; j < 7; j ++) | |
642 | { | |
643 | sprintf(device, "/dev/c%dt%dd0_lp", i, j); | |
644 | if (access(device, 0) == 0) | |
645 | printf("direct parallel:%s \"Unknown\" \"Parallel Port #%d,%d\"\n", | |
646 | device, i, j); | |
647 | } | |
648 | ||
649 | /* | |
650 | * Central Data parallel ports... | |
651 | */ | |
652 | ||
653 | for (i = 0; i < 9; i ++) | |
654 | for (j = 0; j < 8; j ++) | |
655 | for (n = 0; n < 32; n ++) | |
656 | { | |
657 | if (i == 8) /* EtherLite */ | |
658 | sprintf(device, "/dev/lpN%d%c", j, funky_hex[n]); | |
659 | else | |
660 | sprintf(device, "/dev/lp%c%d%c", i + 'C', j, | |
661 | funky_hex[n]); | |
662 | ||
663 | if (access(device, 0) == 0) | |
664 | { | |
665 | if (i == 8) | |
666 | printf("direct parallel:%s \"Unknown\" \"Central Data EtherLite Parallel Port, ID %d, port %d\"\n", | |
667 | device, j, n); | |
668 | else | |
669 | printf("direct parallel:%s \"Unknown\" \"Central Data SCSI Parallel Port, logical bus %d, ID %d, port %d\"\n", | |
670 | device, i, j, n); | |
671 | } | |
672 | } | |
673 | #elif defined(__osf__) | |
674 | int i; /* Looping var */ | |
675 | int fd; /* File descriptor */ | |
676 | char device[255]; /* Device filename */ | |
677 | ||
678 | ||
679 | for (i = 0; i < 3; i ++) | |
680 | { | |
681 | sprintf(device, "/dev/lp%d", i); | |
682 | if ((fd = open(device, O_WRONLY)) >= 0) | |
683 | { | |
684 | close(fd); | |
685 | printf("direct parallel:%s \"Unknown\" \"Parallel Port #%d\"\n", device, i + 1); | |
686 | } | |
687 | } | |
688 | #elif defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) | |
689 | int i; /* Looping var */ | |
690 | int fd; /* File descriptor */ | |
691 | char device[255]; /* Device filename */ | |
692 | ||
693 | ||
694 | for (i = 0; i < 3; i ++) | |
695 | { | |
696 | sprintf(device, "/dev/lpt%d", i); | |
697 | if ((fd = open(device, O_WRONLY)) >= 0) | |
698 | { | |
699 | close(fd); | |
700 | printf("direct parallel:%s \"Unknown\" \"Parallel Port #%d (interrupt-driven)\"\n", device, i + 1); | |
701 | } | |
702 | ||
703 | sprintf(device, "/dev/lpa%d", i); | |
704 | if ((fd = open(device, O_WRONLY)) >= 0) | |
705 | { | |
706 | close(fd); | |
707 | printf("direct parallel:%s \"Unknown\" \"Parallel Port #%d (polled)\"\n", device, i + 1); | |
708 | } | |
709 | } | |
710 | #elif defined(_AIX) | |
711 | int i; /* Looping var */ | |
712 | int fd; /* File descriptor */ | |
713 | char device[255]; /* Device filename */ | |
714 | ||
715 | ||
716 | for (i = 0; i < 8; i ++) | |
717 | { | |
718 | sprintf(device, "/dev/lp%d", i); | |
719 | if ((fd = open(device, O_WRONLY)) >= 0) | |
720 | { | |
721 | close(fd); | |
722 | printf("direct parallel:%s \"Unknown\" \"Parallel Port #%d\"\n", device, i + 1); | |
723 | } | |
724 | } | |
725 | #endif | |
726 | } | |
727 | ||
728 | ||
729 | /* | |
730 | * End of "$Id: parallel.c 4906 2006-01-10 20:53:28Z mike $". | |
731 | */ |