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7a14d768 MS |
1 | /* |
2 | * "$Id$" | |
3 | * | |
4 | * DNS-SD discovery backend for the Common UNIX Printing System (CUPS). | |
5 | * | |
6 | * Copyright 2008 by Apple Inc. | |
7a14d768 MS |
7 | * |
8 | * These coded instructions, statements, and computer programs are the | |
9 | * property of Apple Inc. and are protected by Federal copyright | |
10 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
11 | * "LICENSE" which should have been included with this file. If this | |
12 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
13 | * | |
14 | * This file is subject to the Apple OS-Developed Software exception. | |
15 | * | |
16 | * Contents: | |
17 | * | |
18 | * main() - Browse for printers. | |
19 | * browse_callback() - Browse devices. | |
20 | * browse_local_callback() - Browse local devices. | |
21 | * compare_devices() - Compare two devices. | |
22 | * get_device() - Create or update a device. | |
23 | * query_callback() - Process query data. | |
24 | * unquote() - Unquote a name string. | |
25 | */ | |
26 | ||
27 | /* | |
28 | * Include necessary headers. | |
29 | */ | |
30 | ||
31 | #include "backend-private.h" | |
32 | #include <cups/array.h> | |
33 | #include <dns_sd.h> | |
34 | ||
35 | ||
36 | /* | |
37 | * Device structure... | |
38 | */ | |
39 | ||
40 | typedef enum | |
41 | { | |
42 | CUPS_DEVICE_PRINTER = 0, /* lpd://... */ | |
43 | CUPS_DEVICE_IPP, /* ipp://... */ | |
44 | CUPS_DEVICE_FAX_IPP, /* ipp://... */ | |
45 | CUPS_DEVICE_PDL_DATASTREAM, /* socket://... */ | |
46 | CUPS_DEVICE_RIOUSBPRINT /* riousbprint://... */ | |
47 | } cups_devtype_t; | |
48 | ||
49 | ||
50 | typedef struct | |
51 | { | |
52 | DNSServiceRef ref; /* Service reference for resolve */ | |
53 | char *name, /* Service name */ | |
54 | *domain, /* Domain name */ | |
55 | *fullName, /* Full name */ | |
56 | *make_and_model; /* Make and model from TXT record */ | |
57 | cups_devtype_t type; /* Device registration type */ | |
58 | int cups_shared, /* CUPS shared printer? */ | |
59 | sent; /* Did we list the device? */ | |
60 | } cups_device_t; | |
61 | ||
62 | ||
63 | /* | |
64 | * Local functions... | |
65 | */ | |
66 | ||
67 | static void browse_callback(DNSServiceRef sdRef, | |
68 | DNSServiceFlags flags, | |
69 | uint32_t interfaceIndex, | |
70 | DNSServiceErrorType errorCode, | |
71 | const char *serviceName, | |
72 | const char *regtype, | |
73 | const char *replyDomain, void *context); | |
74 | static void browse_local_callback(DNSServiceRef sdRef, | |
75 | DNSServiceFlags flags, | |
76 | uint32_t interfaceIndex, | |
77 | DNSServiceErrorType errorCode, | |
78 | const char *serviceName, | |
79 | const char *regtype, | |
80 | const char *replyDomain, | |
81 | void *context); | |
82 | static int compare_devices(cups_device_t *a, cups_device_t *b); | |
83 | static void exec_backend(char **argv); | |
84 | static cups_device_t *get_device(cups_array_t *devices, | |
85 | const char *serviceName, | |
86 | const char *regtype, | |
87 | const char *replyDomain); | |
88 | static void query_callback(DNSServiceRef sdRef, | |
89 | DNSServiceFlags flags, | |
90 | uint32_t interfaceIndex, | |
91 | DNSServiceErrorType errorCode, | |
92 | const char *fullName, uint16_t rrtype, | |
93 | uint16_t rrclass, uint16_t rdlen, | |
94 | const void *rdata, uint32_t ttl, | |
95 | void *context); | |
96 | static void unquote(char *dst, const char *src, size_t dstsize); | |
97 | ||
98 | ||
99 | /* | |
100 | * 'main()' - Browse for printers. | |
101 | */ | |
102 | ||
103 | int /* O - Exit status */ | |
104 | main(int argc, /* I - Number of command-line args */ | |
105 | char *argv[]) /* I - Command-line arguments */ | |
106 | { | |
107 | DNSServiceRef main_ref, /* Main service reference */ | |
108 | fax_ipp_ref, /* IPP fax service reference */ | |
109 | ipp_ref, /* IPP service reference */ | |
110 | ipp_tls_ref, /* IPP w/TLS service reference */ | |
111 | local_fax_ipp_ref, /* Local IPP fax service reference */ | |
112 | local_ipp_ref, /* Local IPP service reference */ | |
113 | local_ipp_tls_ref, /* Local IPP w/TLS service reference */ | |
114 | local_printer_ref, /* Local LPD service reference */ | |
115 | pdl_datastream_ref, /* AppSocket service reference */ | |
116 | printer_ref, /* LPD service reference */ | |
117 | riousbprint_ref; /* Remote IO service reference */ | |
118 | int fd; /* Main file descriptor */ | |
119 | fd_set input; /* Input set for select() */ | |
120 | struct timeval timeout; /* Timeout for select() */ | |
121 | cups_array_t *devices; /* Device array */ | |
122 | cups_device_t *device; /* Current device */ | |
123 | ||
124 | ||
125 | /* | |
126 | * Check command-line... | |
127 | */ | |
128 | ||
129 | setbuf(stderr, NULL); | |
130 | ||
131 | if (argc >= 6) | |
132 | exec_backend(argv); | |
133 | else if (argc != 1) | |
134 | { | |
135 | fputs("Usage: mdns job user title copies options [filename(s)]\n", stderr); | |
136 | return (1); | |
137 | } | |
138 | ||
139 | /* | |
140 | * Create an array to track devices... | |
141 | */ | |
142 | ||
143 | devices = cupsArrayNew((cups_array_func_t)compare_devices, NULL); | |
144 | ||
145 | /* | |
146 | * Browse for different kinds of printers... | |
147 | */ | |
148 | ||
149 | if (DNSServiceCreateConnection(&main_ref) != kDNSServiceErr_NoError) | |
150 | { | |
151 | perror("ERROR: Unable to create service connection"); | |
152 | return (1); | |
153 | } | |
154 | ||
155 | fd = DNSServiceRefSockFD(main_ref); | |
156 | ||
157 | fax_ipp_ref = main_ref; | |
158 | DNSServiceBrowse(&fax_ipp_ref, kDNSServiceFlagsShareConnection, 0, | |
159 | "_fax-ipp._tcp", NULL, browse_callback, devices); | |
160 | ||
161 | ipp_ref = main_ref; | |
162 | DNSServiceBrowse(&ipp_ref, kDNSServiceFlagsShareConnection, 0, | |
163 | "_ipp._tcp", NULL, browse_callback, devices); | |
164 | ||
165 | ipp_tls_ref = main_ref; | |
166 | DNSServiceBrowse(&ipp_tls_ref, kDNSServiceFlagsShareConnection, 0, | |
167 | "_ipp-tls._tcp", NULL, browse_callback, devices); | |
168 | ||
169 | local_fax_ipp_ref = main_ref; | |
170 | DNSServiceBrowse(&local_fax_ipp_ref, kDNSServiceFlagsShareConnection, | |
171 | kDNSServiceInterfaceIndexLocalOnly, | |
172 | "_fax-ipp._tcp", NULL, browse_local_callback, devices); | |
173 | ||
174 | local_ipp_ref = main_ref; | |
175 | DNSServiceBrowse(&local_ipp_ref, kDNSServiceFlagsShareConnection, | |
176 | kDNSServiceInterfaceIndexLocalOnly, | |
177 | "_ipp._tcp", NULL, browse_local_callback, devices); | |
178 | ||
179 | local_ipp_tls_ref = main_ref; | |
180 | DNSServiceBrowse(&local_ipp_tls_ref, kDNSServiceFlagsShareConnection, | |
181 | kDNSServiceInterfaceIndexLocalOnly, | |
182 | "_ipp-tls._tcp", NULL, browse_local_callback, devices); | |
183 | ||
184 | local_printer_ref = main_ref; | |
185 | DNSServiceBrowse(&local_printer_ref, kDNSServiceFlagsShareConnection, | |
186 | kDNSServiceInterfaceIndexLocalOnly, | |
187 | "_printer._tcp", NULL, browse_local_callback, devices); | |
188 | ||
189 | pdl_datastream_ref = main_ref; | |
190 | DNSServiceBrowse(&pdl_datastream_ref, kDNSServiceFlagsShareConnection, 0, | |
191 | "_pdl-datastream._tcp", NULL, browse_callback, devices); | |
192 | ||
193 | printer_ref = main_ref; | |
194 | DNSServiceBrowse(&printer_ref, kDNSServiceFlagsShareConnection, 0, | |
195 | "_printer._tcp", NULL, browse_callback, devices); | |
196 | ||
197 | riousbprint_ref = main_ref; | |
198 | DNSServiceBrowse(&riousbprint_ref, kDNSServiceFlagsShareConnection, 0, | |
199 | "_riousbprint._tcp", NULL, browse_callback, devices); | |
200 | ||
201 | /* | |
202 | * Loop until we are killed... | |
203 | */ | |
204 | ||
205 | for (;;) | |
206 | { | |
207 | FD_ZERO(&input); | |
208 | FD_SET(fd, &input); | |
209 | ||
210 | timeout.tv_sec = 1; | |
211 | timeout.tv_usec = 0; | |
212 | ||
213 | if (select(fd + 1, &input, NULL, NULL, &timeout) < 0) | |
214 | continue; | |
215 | ||
216 | if (FD_ISSET(fd, &input)) | |
217 | { | |
218 | /* | |
219 | * Process results of our browsing... | |
220 | */ | |
221 | ||
222 | DNSServiceProcessResult(main_ref); | |
223 | } | |
224 | else | |
225 | { | |
226 | /* | |
227 | * Announce any devices we've found... | |
228 | */ | |
229 | ||
230 | char device_uri[1024]; /* Device URI */ | |
231 | static const char * const schemes[] = | |
232 | { "lpd", "ipp", "ipp", "socket", "riousbprint" }; | |
233 | /* URI schemes for devices */ | |
234 | ||
235 | ||
236 | for (device = (cups_device_t *)cupsArrayFirst(devices); | |
237 | device; | |
238 | device = (cups_device_t *)cupsArrayNext(devices)) | |
239 | if (!device->ref && !device->sent) | |
240 | { | |
241 | /* | |
242 | * Found the device, now get the TXT record(s) for it... | |
243 | */ | |
244 | ||
245 | device->ref = main_ref; | |
246 | ||
247 | fprintf(stderr, "DEBUG: Querying \"%s\"...\n", device->fullName); | |
248 | ||
249 | if (DNSServiceQueryRecord(&(device->ref), | |
250 | kDNSServiceFlagsShareConnection, | |
251 | 0, device->fullName, kDNSServiceType_TXT, | |
252 | kDNSServiceClass_IN, query_callback, | |
253 | devices) != kDNSServiceErr_NoError) | |
254 | fputs("ERROR: Unable to query for TXT records!\n", stderr); | |
255 | } | |
256 | else if (!device->sent) | |
257 | { | |
258 | /* | |
259 | * Got the TXT records, now report the device... | |
260 | */ | |
261 | ||
262 | DNSServiceRefDeallocate(device->ref); | |
263 | device->ref = 0; | |
264 | ||
c9fc04c6 MS |
265 | httpAssembleURI(HTTP_URI_CODING_ALL, device_uri, sizeof(device_uri), |
266 | schemes[device->type], NULL, device->fullName, 0, | |
267 | device->cups_shared ? "/cups" : "/"); | |
7a14d768 MS |
268 | |
269 | printf("network %s \"%s\" \"%s\"\n", device_uri, | |
270 | device->make_and_model ? device->make_and_model : "Unknown", | |
271 | device->name); | |
a0f6818e | 272 | fflush(stdout); |
7a14d768 MS |
273 | |
274 | device->sent = 1; | |
275 | } | |
276 | } | |
277 | } | |
278 | } | |
279 | ||
280 | ||
281 | /* | |
282 | * 'browse_callback()' - Browse devices. | |
283 | */ | |
284 | ||
285 | static void | |
286 | browse_callback( | |
287 | DNSServiceRef sdRef, /* I - Service reference */ | |
288 | DNSServiceFlags flags, /* I - Option flags */ | |
289 | uint32_t interfaceIndex, /* I - Interface number */ | |
290 | DNSServiceErrorType errorCode, /* I - Error, if any */ | |
291 | const char *serviceName, /* I - Name of service/device */ | |
292 | const char *regtype, /* I - Type of service */ | |
293 | const char *replyDomain, /* I - Service domain */ | |
294 | void *context) /* I - Devices array */ | |
295 | { | |
296 | fprintf(stderr, "DEBUG2: browse_callback(sdRef=%p, flags=%x, " | |
297 | "interfaceIndex=%d, errorCode=%d, serviceName=\"%s\", " | |
298 | "regtype=\"%s\", replyDomain=\"%s\", context=%p)\n", | |
299 | sdRef, flags, interfaceIndex, errorCode, | |
300 | serviceName ? serviceName : "(null)", | |
301 | regtype ? regtype : "(null)", | |
302 | replyDomain ? replyDomain : "(null)", | |
303 | context); | |
304 | ||
305 | /* | |
306 | * Only process "add" data... | |
307 | */ | |
308 | ||
309 | if (errorCode != kDNSServiceErr_NoError || !(flags & kDNSServiceFlagsAdd)) | |
310 | return; | |
311 | ||
312 | /* | |
313 | * Get the device... | |
314 | */ | |
315 | ||
316 | get_device((cups_array_t *)context, serviceName, regtype, replyDomain); | |
317 | } | |
318 | ||
319 | ||
320 | /* | |
321 | * 'browse_local_callback()' - Browse local devices. | |
322 | */ | |
323 | ||
324 | static void | |
325 | browse_local_callback( | |
326 | DNSServiceRef sdRef, /* I - Service reference */ | |
327 | DNSServiceFlags flags, /* I - Option flags */ | |
328 | uint32_t interfaceIndex, /* I - Interface number */ | |
329 | DNSServiceErrorType errorCode, /* I - Error, if any */ | |
330 | const char *serviceName, /* I - Name of service/device */ | |
331 | const char *regtype, /* I - Type of service */ | |
332 | const char *replyDomain, /* I - Service domain */ | |
333 | void *context) /* I - Devices array */ | |
334 | { | |
335 | cups_device_t *device; /* Device */ | |
336 | ||
337 | ||
338 | fprintf(stderr, "DEBUG2: browse_local_callback(sdRef=%p, flags=%x, " | |
339 | "interfaceIndex=%d, errorCode=%d, serviceName=\"%s\", " | |
340 | "regtype=\"%s\", replyDomain=\"%s\", context=%p)\n", | |
341 | sdRef, flags, interfaceIndex, errorCode, | |
342 | serviceName ? serviceName : "(null)", | |
343 | regtype ? regtype : "(null)", | |
344 | replyDomain ? replyDomain : "(null)", | |
345 | context); | |
346 | ||
347 | /* | |
348 | * Only process "add" data... | |
349 | */ | |
350 | ||
351 | if (errorCode != kDNSServiceErr_NoError || !(flags & kDNSServiceFlagsAdd)) | |
352 | return; | |
353 | ||
354 | /* | |
355 | * Get the device... | |
356 | */ | |
357 | ||
358 | device = get_device((cups_array_t *)context, serviceName, regtype, | |
359 | replyDomain); | |
360 | ||
361 | /* | |
362 | * Hide locally-registered devices... | |
363 | */ | |
364 | ||
365 | fprintf(stderr, "DEBUG: Hiding local printer \"%s\"...\n", | |
366 | device->fullName); | |
367 | device->sent = 1; | |
368 | } | |
369 | ||
370 | ||
371 | /* | |
372 | * 'compare_devices()' - Compare two devices. | |
373 | */ | |
374 | ||
375 | static int /* O - Result of comparison */ | |
376 | compare_devices(cups_device_t *a, /* I - First device */ | |
377 | cups_device_t *b) /* I - Second device */ | |
378 | { | |
379 | int result = strcmp(a->name, b->name); | |
380 | ||
381 | if (result) | |
382 | return (result); | |
383 | else | |
384 | return (strcmp(a->domain, b->domain)); | |
385 | } | |
386 | ||
387 | ||
388 | /* | |
389 | * 'exec_backend()' - Execute the backend that corresponds to the | |
390 | * resolved service name. | |
391 | */ | |
392 | ||
393 | static void | |
394 | exec_backend(char **argv) /* I - Command-line arguments */ | |
395 | { | |
396 | const char *resolved_uri, /* Resolved device URI */ | |
397 | *cups_serverbin; /* Location of programs */ | |
398 | char scheme[1024], /* Scheme from URI */ | |
399 | *ptr, /* Pointer into scheme */ | |
400 | filename[1024]; /* Backend filename */ | |
401 | ||
402 | ||
403 | /* | |
404 | * Resolve the device URI... | |
405 | */ | |
406 | ||
407 | resolved_uri = backendResolveURI(argv); | |
408 | ||
409 | /* | |
410 | * Extract the scheme from the URI... | |
411 | */ | |
412 | ||
413 | strlcpy(scheme, resolved_uri, sizeof(scheme)); | |
414 | if ((ptr = strchr(scheme, ':')) != NULL) | |
415 | *ptr = '\0'; | |
416 | ||
417 | /* | |
418 | * Get the filename of the backend... | |
419 | */ | |
420 | ||
421 | if ((cups_serverbin = getenv("CUPS_SERVERBIN")) == NULL) | |
422 | cups_serverbin = CUPS_SERVERBIN; | |
423 | ||
424 | snprintf(filename, sizeof(filename), "%s/backend/%s", cups_serverbin, scheme); | |
425 | ||
426 | /* | |
427 | * Overwrite the device URIs and run the new backend... | |
428 | */ | |
429 | ||
430 | setenv("DEVICE_URI", resolved_uri, 1); | |
431 | ||
432 | argv[0] = (char *)resolved_uri; | |
433 | ||
434 | fprintf(stderr, "DEBUG: Executing backend \"%s\"...\n", filename); | |
435 | ||
436 | execv(filename, argv); | |
437 | ||
438 | fprintf(stderr, "ERROR: Unable to execute backend \"%s\": %s\n", filename, | |
439 | strerror(errno)); | |
440 | exit(CUPS_BACKEND_STOP); | |
441 | } | |
442 | ||
443 | ||
444 | /* | |
445 | * 'get_device()' - Create or update a device. | |
446 | */ | |
447 | ||
448 | static cups_device_t * /* O - Device */ | |
449 | get_device(cups_array_t *devices, /* I - Device array */ | |
450 | const char *serviceName, /* I - Name of service/device */ | |
451 | const char *regtype, /* I - Type of service */ | |
452 | const char *replyDomain) /* I - Service domain */ | |
453 | { | |
454 | cups_device_t key, /* Search key */ | |
455 | *device; /* Device */ | |
456 | char fullName[1024]; /* Full name for query */ | |
457 | ||
458 | ||
459 | /* | |
460 | * See if this is a new device... | |
461 | */ | |
462 | ||
463 | key.name = (char *)serviceName; | |
464 | key.domain = (char *)replyDomain; | |
465 | ||
466 | if (!strcmp(regtype, "_ipp._tcp.") || | |
467 | !strcmp(regtype, "_ipp-tls._tcp.")) | |
468 | key.type = CUPS_DEVICE_IPP; | |
469 | else if (!strcmp(regtype, "_fax-ipp._tcp.")) | |
470 | key.type = CUPS_DEVICE_FAX_IPP; | |
471 | else if (!strcmp(regtype, "_printer._tcp.")) | |
472 | key.type = CUPS_DEVICE_PRINTER; | |
473 | else if (!strcmp(regtype, "_pdl-datastream._tcp.")) | |
474 | key.type = CUPS_DEVICE_PDL_DATASTREAM; | |
475 | else | |
476 | key.type = CUPS_DEVICE_RIOUSBPRINT; | |
477 | ||
478 | if ((device = cupsArrayFind(devices, &key)) != NULL) | |
479 | { | |
480 | /* | |
481 | * No, see if this registration is a higher priority protocol... | |
482 | */ | |
483 | ||
484 | if (key.type > device->type) | |
485 | { | |
486 | fprintf(stderr, "DEBUG: Updating \"%s\" to \"%s.%s%s\"...\n", | |
487 | device->fullName, serviceName, regtype, replyDomain); | |
488 | ||
489 | device->type = key.type; | |
490 | } | |
491 | } | |
492 | else | |
493 | { | |
494 | /* | |
495 | * Yes, add the device... | |
496 | */ | |
497 | ||
498 | fprintf(stderr, "DEBUG: Found \"%s.%s%s\"...\n", serviceName, regtype, | |
499 | replyDomain); | |
500 | ||
501 | device = calloc(sizeof(cups_device_t), 1); | |
502 | device->name = strdup(serviceName); | |
503 | device->domain = strdup(replyDomain); | |
504 | device->type = key.type; | |
505 | ||
506 | cupsArrayAdd(devices, device); | |
507 | } | |
508 | ||
509 | /* | |
510 | * Update the "full name" of this service, which is used for queries... | |
511 | */ | |
512 | ||
513 | snprintf(fullName, sizeof(fullName), "%s.%s%s", serviceName, regtype, | |
514 | replyDomain); | |
515 | ||
516 | if (device->fullName) | |
517 | free(device->fullName); | |
518 | ||
519 | device->fullName = strdup(fullName); | |
520 | ||
521 | return (device); | |
522 | } | |
523 | ||
524 | ||
525 | /* | |
526 | * 'query_callback()' - Process query data. | |
527 | */ | |
528 | ||
529 | static void | |
530 | query_callback( | |
531 | DNSServiceRef sdRef, /* I - Service reference */ | |
532 | DNSServiceFlags flags, /* I - Data flags */ | |
533 | uint32_t interfaceIndex, /* I - Interface */ | |
534 | DNSServiceErrorType errorCode, /* I - Error, if any */ | |
535 | const char *fullName, /* I - Full service name */ | |
536 | uint16_t rrtype, /* I - Record type */ | |
537 | uint16_t rrclass, /* I - Record class */ | |
538 | uint16_t rdlen, /* I - Length of record data */ | |
539 | const void *rdata, /* I - Record data */ | |
540 | uint32_t ttl, /* I - Time-to-live */ | |
541 | void *context) /* I - Devices array */ | |
542 | { | |
543 | cups_array_t *devices; /* Device array */ | |
544 | char name[1024], /* Service name */ | |
545 | *ptr; /* Pointer into name */ | |
546 | cups_device_t key, /* Search key */ | |
547 | *device; /* Device */ | |
548 | ||
549 | ||
550 | fprintf(stderr, "DEBUG2: query_callback(sdRef=%p, flags=%x, " | |
551 | "interfaceIndex=%d, errorCode=%d, fullName=\"%s\", " | |
552 | "rrtype=%u, rrclass=%u, rdlen=%u, rdata=%p, ttl=%u, " | |
553 | "context=%p)\n", | |
554 | sdRef, flags, interfaceIndex, errorCode, | |
555 | fullName ? fullName : "(null)", rrtype, rrclass, rdlen, rdata, ttl, | |
556 | context); | |
557 | ||
558 | /* | |
559 | * Only process "add" data... | |
560 | */ | |
561 | ||
562 | if (errorCode != kDNSServiceErr_NoError || !(flags & kDNSServiceFlagsAdd)) | |
563 | return; | |
564 | ||
565 | /* | |
566 | * Lookup the service in the devices array. | |
567 | */ | |
568 | ||
569 | devices = (cups_array_t *)context; | |
570 | key.name = name; | |
571 | ||
572 | unquote(name, fullName, sizeof(name)); | |
573 | ||
574 | if ((key.domain = strstr(name, "._tcp.")) != NULL) | |
575 | key.domain += 6; | |
576 | else | |
577 | key.domain = (char *)"local."; | |
578 | ||
579 | if ((ptr = strstr(name, "._")) != NULL) | |
580 | *ptr = '\0'; | |
581 | ||
582 | if ((device = cupsArrayFind(devices, &key)) != NULL) | |
583 | { | |
584 | /* | |
585 | * Found it, pull out the make and model from the TXT record and save it... | |
586 | */ | |
587 | ||
588 | const void *value; /* Pointer to value */ | |
589 | uint8_t valueLen; /* Length of value (max 255) */ | |
590 | char make_and_model[512], /* Manufacturer and model */ | |
591 | model[256]; /* Model */ | |
592 | ||
593 | ||
594 | if ((value = TXTRecordGetValuePtr(rdlen, rdata, "usb_MFG", | |
595 | &valueLen)) == NULL) | |
596 | value = TXTRecordGetValuePtr(rdlen, rdata, "usb_MANUFACTURER", &valueLen); | |
597 | ||
598 | if (value && valueLen) | |
599 | { | |
600 | memcpy(make_and_model, value, valueLen); | |
601 | make_and_model[valueLen] = '\0'; | |
602 | } | |
603 | else | |
604 | make_and_model[0] = '\0'; | |
605 | ||
606 | if ((value = TXTRecordGetValuePtr(rdlen, rdata, "usb_MDL", | |
607 | &valueLen)) == NULL) | |
608 | value = TXTRecordGetValuePtr(rdlen, rdata, "usb_MODEL", &valueLen); | |
609 | ||
610 | if (value && valueLen) | |
611 | { | |
612 | memcpy(model, value, valueLen); | |
613 | model[valueLen] = '\0'; | |
614 | } | |
615 | else if ((value = TXTRecordGetValuePtr(rdlen, rdata, "product", | |
616 | &valueLen)) != NULL && valueLen > 2) | |
617 | { | |
618 | memcpy(model, value + 1, valueLen - 2); | |
619 | model[valueLen - 2] = '\0'; | |
620 | ||
621 | if (!strcasecmp(model, "GPL Ghostscript") || | |
622 | !strcasecmp(model, "GNU Ghostscript") || | |
623 | !strcasecmp(model, "ESP Ghostscript")) | |
624 | { | |
625 | if ((value = TXTRecordGetValuePtr(rdlen, rdata, "ty", | |
626 | &valueLen)) != NULL) | |
627 | { | |
628 | memcpy(model, value, valueLen); | |
629 | model[valueLen] = '\0'; | |
630 | ||
631 | if ((ptr = strchr(model, ',')) != NULL) | |
632 | *ptr = '\0'; | |
633 | } | |
634 | else | |
635 | strcpy(model, "Unknown"); | |
636 | } | |
637 | } | |
638 | else | |
639 | strcpy(model, "Unknown"); | |
640 | ||
641 | if (device->make_and_model) | |
642 | free(device->make_and_model); | |
643 | ||
644 | if (make_and_model[0]) | |
645 | { | |
646 | strlcat(make_and_model, " ", sizeof(make_and_model)); | |
647 | strlcat(make_and_model, model, sizeof(make_and_model)); | |
648 | device->make_and_model = strdup(make_and_model); | |
649 | } | |
650 | else | |
651 | device->make_and_model = strdup(model); | |
652 | ||
a0f6818e MS |
653 | if ((device->type == CUPS_DEVICE_IPP || |
654 | device->type == CUPS_DEVICE_PRINTER) && | |
7a14d768 MS |
655 | (value = TXTRecordGetValuePtr(rdlen, rdata, "printer-type", |
656 | &valueLen)) != NULL) | |
657 | { | |
658 | /* | |
659 | * This is a CUPS printer! | |
660 | */ | |
661 | ||
662 | device->cups_shared = 1; | |
a0f6818e MS |
663 | |
664 | if (device->type == CUPS_DEVICE_PRINTER) | |
665 | device->sent = 1; | |
7a14d768 MS |
666 | } |
667 | } | |
668 | else | |
669 | fprintf(stderr, "DEBUG: Ignoring TXT record for \"%s\"...\n", fullName); | |
670 | } | |
671 | ||
672 | ||
673 | /* | |
674 | * 'unquote()' - Unquote a name string. | |
675 | */ | |
676 | ||
677 | static void | |
678 | unquote(char *dst, /* I - Destination buffer */ | |
679 | const char *src, /* I - Source string */ | |
680 | size_t dstsize) /* I - Size of destination buffer */ | |
681 | { | |
682 | char *dstend = dst + dstsize - 1; /* End of destination buffer */ | |
683 | ||
684 | ||
685 | while (*src && dst < dstend) | |
686 | { | |
687 | if (*src == '\\') | |
688 | { | |
689 | src ++; | |
690 | if (isdigit(src[0] & 255) && isdigit(src[1] & 255) && | |
691 | isdigit(src[2] & 255)) | |
692 | { | |
693 | *dst++ = ((((src[0] - '0') * 10) + src[1] - '0') * 10) + src[2] - '0'; | |
694 | src += 3; | |
695 | } | |
696 | else | |
697 | *dst++ = *src++; | |
698 | } | |
699 | else | |
700 | *dst++ = *src ++; | |
701 | } | |
702 | ||
703 | *dst = '\0'; | |
704 | } | |
705 | ||
706 | ||
707 | /* | |
708 | * End of "$Id$". | |
709 | */ |