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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 */ | |
5eb9da71 | 231 | int count; /* Number of queries */ |
7a14d768 MS |
232 | static const char * const schemes[] = |
233 | { "lpd", "ipp", "ipp", "socket", "riousbprint" }; | |
234 | /* URI schemes for devices */ | |
235 | ||
236 | ||
5eb9da71 | 237 | for (device = (cups_device_t *)cupsArrayFirst(devices), count = 0; |
7a14d768 MS |
238 | device; |
239 | device = (cups_device_t *)cupsArrayNext(devices)) | |
240 | if (!device->ref && !device->sent) | |
241 | { | |
242 | /* | |
243 | * Found the device, now get the TXT record(s) for it... | |
244 | */ | |
245 | ||
5eb9da71 MS |
246 | if (count < 10) |
247 | { | |
248 | device->ref = main_ref; | |
249 | ||
250 | fprintf(stderr, "DEBUG: Querying \"%s\"...\n", device->fullName); | |
251 | ||
252 | if (DNSServiceQueryRecord(&(device->ref), | |
253 | kDNSServiceFlagsShareConnection, | |
254 | 0, device->fullName, kDNSServiceType_TXT, | |
255 | kDNSServiceClass_IN, query_callback, | |
256 | devices) != kDNSServiceErr_NoError) | |
257 | fputs("ERROR: Unable to query for TXT records!\n", stderr); | |
258 | else | |
259 | count ++; | |
260 | } | |
7a14d768 MS |
261 | } |
262 | else if (!device->sent) | |
263 | { | |
264 | /* | |
265 | * Got the TXT records, now report the device... | |
266 | */ | |
267 | ||
268 | DNSServiceRefDeallocate(device->ref); | |
269 | device->ref = 0; | |
270 | ||
c9fc04c6 MS |
271 | httpAssembleURI(HTTP_URI_CODING_ALL, device_uri, sizeof(device_uri), |
272 | schemes[device->type], NULL, device->fullName, 0, | |
273 | device->cups_shared ? "/cups" : "/"); | |
7a14d768 MS |
274 | |
275 | printf("network %s \"%s\" \"%s\"\n", device_uri, | |
276 | device->make_and_model ? device->make_and_model : "Unknown", | |
277 | device->name); | |
a0f6818e | 278 | fflush(stdout); |
7a14d768 MS |
279 | |
280 | device->sent = 1; | |
281 | } | |
282 | } | |
283 | } | |
284 | } | |
285 | ||
286 | ||
287 | /* | |
288 | * 'browse_callback()' - Browse devices. | |
289 | */ | |
290 | ||
291 | static void | |
292 | browse_callback( | |
293 | DNSServiceRef sdRef, /* I - Service reference */ | |
294 | DNSServiceFlags flags, /* I - Option flags */ | |
295 | uint32_t interfaceIndex, /* I - Interface number */ | |
296 | DNSServiceErrorType errorCode, /* I - Error, if any */ | |
297 | const char *serviceName, /* I - Name of service/device */ | |
298 | const char *regtype, /* I - Type of service */ | |
299 | const char *replyDomain, /* I - Service domain */ | |
300 | void *context) /* I - Devices array */ | |
301 | { | |
302 | fprintf(stderr, "DEBUG2: browse_callback(sdRef=%p, flags=%x, " | |
303 | "interfaceIndex=%d, errorCode=%d, serviceName=\"%s\", " | |
304 | "regtype=\"%s\", replyDomain=\"%s\", context=%p)\n", | |
305 | sdRef, flags, interfaceIndex, errorCode, | |
306 | serviceName ? serviceName : "(null)", | |
307 | regtype ? regtype : "(null)", | |
308 | replyDomain ? replyDomain : "(null)", | |
309 | context); | |
310 | ||
311 | /* | |
312 | * Only process "add" data... | |
313 | */ | |
314 | ||
315 | if (errorCode != kDNSServiceErr_NoError || !(flags & kDNSServiceFlagsAdd)) | |
316 | return; | |
317 | ||
318 | /* | |
319 | * Get the device... | |
320 | */ | |
321 | ||
322 | get_device((cups_array_t *)context, serviceName, regtype, replyDomain); | |
323 | } | |
324 | ||
325 | ||
326 | /* | |
327 | * 'browse_local_callback()' - Browse local devices. | |
328 | */ | |
329 | ||
330 | static void | |
331 | browse_local_callback( | |
332 | DNSServiceRef sdRef, /* I - Service reference */ | |
333 | DNSServiceFlags flags, /* I - Option flags */ | |
334 | uint32_t interfaceIndex, /* I - Interface number */ | |
335 | DNSServiceErrorType errorCode, /* I - Error, if any */ | |
336 | const char *serviceName, /* I - Name of service/device */ | |
337 | const char *regtype, /* I - Type of service */ | |
338 | const char *replyDomain, /* I - Service domain */ | |
339 | void *context) /* I - Devices array */ | |
340 | { | |
341 | cups_device_t *device; /* Device */ | |
342 | ||
343 | ||
344 | fprintf(stderr, "DEBUG2: browse_local_callback(sdRef=%p, flags=%x, " | |
345 | "interfaceIndex=%d, errorCode=%d, serviceName=\"%s\", " | |
346 | "regtype=\"%s\", replyDomain=\"%s\", context=%p)\n", | |
347 | sdRef, flags, interfaceIndex, errorCode, | |
348 | serviceName ? serviceName : "(null)", | |
349 | regtype ? regtype : "(null)", | |
350 | replyDomain ? replyDomain : "(null)", | |
351 | context); | |
352 | ||
353 | /* | |
354 | * Only process "add" data... | |
355 | */ | |
356 | ||
357 | if (errorCode != kDNSServiceErr_NoError || !(flags & kDNSServiceFlagsAdd)) | |
358 | return; | |
359 | ||
360 | /* | |
361 | * Get the device... | |
362 | */ | |
363 | ||
364 | device = get_device((cups_array_t *)context, serviceName, regtype, | |
365 | replyDomain); | |
366 | ||
367 | /* | |
368 | * Hide locally-registered devices... | |
369 | */ | |
370 | ||
371 | fprintf(stderr, "DEBUG: Hiding local printer \"%s\"...\n", | |
372 | device->fullName); | |
373 | device->sent = 1; | |
374 | } | |
375 | ||
376 | ||
377 | /* | |
378 | * 'compare_devices()' - Compare two devices. | |
379 | */ | |
380 | ||
381 | static int /* O - Result of comparison */ | |
382 | compare_devices(cups_device_t *a, /* I - First device */ | |
383 | cups_device_t *b) /* I - Second device */ | |
384 | { | |
385 | int result = strcmp(a->name, b->name); | |
386 | ||
387 | if (result) | |
388 | return (result); | |
389 | else | |
390 | return (strcmp(a->domain, b->domain)); | |
391 | } | |
392 | ||
393 | ||
394 | /* | |
395 | * 'exec_backend()' - Execute the backend that corresponds to the | |
396 | * resolved service name. | |
397 | */ | |
398 | ||
399 | static void | |
400 | exec_backend(char **argv) /* I - Command-line arguments */ | |
401 | { | |
402 | const char *resolved_uri, /* Resolved device URI */ | |
403 | *cups_serverbin; /* Location of programs */ | |
404 | char scheme[1024], /* Scheme from URI */ | |
405 | *ptr, /* Pointer into scheme */ | |
406 | filename[1024]; /* Backend filename */ | |
407 | ||
408 | ||
409 | /* | |
410 | * Resolve the device URI... | |
411 | */ | |
412 | ||
5eb9da71 | 413 | resolved_uri = cupsBackendDeviceURI(argv); |
7a14d768 MS |
414 | |
415 | /* | |
416 | * Extract the scheme from the URI... | |
417 | */ | |
418 | ||
419 | strlcpy(scheme, resolved_uri, sizeof(scheme)); | |
420 | if ((ptr = strchr(scheme, ':')) != NULL) | |
421 | *ptr = '\0'; | |
422 | ||
423 | /* | |
424 | * Get the filename of the backend... | |
425 | */ | |
426 | ||
427 | if ((cups_serverbin = getenv("CUPS_SERVERBIN")) == NULL) | |
428 | cups_serverbin = CUPS_SERVERBIN; | |
429 | ||
430 | snprintf(filename, sizeof(filename), "%s/backend/%s", cups_serverbin, scheme); | |
431 | ||
432 | /* | |
433 | * Overwrite the device URIs and run the new backend... | |
434 | */ | |
435 | ||
436 | setenv("DEVICE_URI", resolved_uri, 1); | |
437 | ||
438 | argv[0] = (char *)resolved_uri; | |
439 | ||
440 | fprintf(stderr, "DEBUG: Executing backend \"%s\"...\n", filename); | |
441 | ||
442 | execv(filename, argv); | |
443 | ||
444 | fprintf(stderr, "ERROR: Unable to execute backend \"%s\": %s\n", filename, | |
445 | strerror(errno)); | |
446 | exit(CUPS_BACKEND_STOP); | |
447 | } | |
448 | ||
449 | ||
450 | /* | |
451 | * 'get_device()' - Create or update a device. | |
452 | */ | |
453 | ||
454 | static cups_device_t * /* O - Device */ | |
455 | get_device(cups_array_t *devices, /* I - Device array */ | |
456 | const char *serviceName, /* I - Name of service/device */ | |
457 | const char *regtype, /* I - Type of service */ | |
458 | const char *replyDomain) /* I - Service domain */ | |
459 | { | |
460 | cups_device_t key, /* Search key */ | |
461 | *device; /* Device */ | |
462 | char fullName[1024]; /* Full name for query */ | |
463 | ||
464 | ||
465 | /* | |
466 | * See if this is a new device... | |
467 | */ | |
468 | ||
469 | key.name = (char *)serviceName; | |
470 | key.domain = (char *)replyDomain; | |
471 | ||
472 | if (!strcmp(regtype, "_ipp._tcp.") || | |
473 | !strcmp(regtype, "_ipp-tls._tcp.")) | |
474 | key.type = CUPS_DEVICE_IPP; | |
475 | else if (!strcmp(regtype, "_fax-ipp._tcp.")) | |
476 | key.type = CUPS_DEVICE_FAX_IPP; | |
477 | else if (!strcmp(regtype, "_printer._tcp.")) | |
478 | key.type = CUPS_DEVICE_PRINTER; | |
479 | else if (!strcmp(regtype, "_pdl-datastream._tcp.")) | |
480 | key.type = CUPS_DEVICE_PDL_DATASTREAM; | |
481 | else | |
482 | key.type = CUPS_DEVICE_RIOUSBPRINT; | |
483 | ||
484 | if ((device = cupsArrayFind(devices, &key)) != NULL) | |
485 | { | |
486 | /* | |
487 | * No, see if this registration is a higher priority protocol... | |
488 | */ | |
489 | ||
490 | if (key.type > device->type) | |
491 | { | |
492 | fprintf(stderr, "DEBUG: Updating \"%s\" to \"%s.%s%s\"...\n", | |
493 | device->fullName, serviceName, regtype, replyDomain); | |
494 | ||
495 | device->type = key.type; | |
496 | } | |
497 | } | |
498 | else | |
499 | { | |
500 | /* | |
501 | * Yes, add the device... | |
502 | */ | |
503 | ||
504 | fprintf(stderr, "DEBUG: Found \"%s.%s%s\"...\n", serviceName, regtype, | |
505 | replyDomain); | |
506 | ||
507 | device = calloc(sizeof(cups_device_t), 1); | |
508 | device->name = strdup(serviceName); | |
509 | device->domain = strdup(replyDomain); | |
510 | device->type = key.type; | |
511 | ||
512 | cupsArrayAdd(devices, device); | |
513 | } | |
514 | ||
515 | /* | |
516 | * Update the "full name" of this service, which is used for queries... | |
517 | */ | |
518 | ||
519 | snprintf(fullName, sizeof(fullName), "%s.%s%s", serviceName, regtype, | |
520 | replyDomain); | |
521 | ||
522 | if (device->fullName) | |
523 | free(device->fullName); | |
524 | ||
525 | device->fullName = strdup(fullName); | |
526 | ||
527 | return (device); | |
528 | } | |
529 | ||
530 | ||
531 | /* | |
532 | * 'query_callback()' - Process query data. | |
533 | */ | |
534 | ||
535 | static void | |
536 | query_callback( | |
537 | DNSServiceRef sdRef, /* I - Service reference */ | |
538 | DNSServiceFlags flags, /* I - Data flags */ | |
539 | uint32_t interfaceIndex, /* I - Interface */ | |
540 | DNSServiceErrorType errorCode, /* I - Error, if any */ | |
541 | const char *fullName, /* I - Full service name */ | |
542 | uint16_t rrtype, /* I - Record type */ | |
543 | uint16_t rrclass, /* I - Record class */ | |
544 | uint16_t rdlen, /* I - Length of record data */ | |
545 | const void *rdata, /* I - Record data */ | |
546 | uint32_t ttl, /* I - Time-to-live */ | |
547 | void *context) /* I - Devices array */ | |
548 | { | |
549 | cups_array_t *devices; /* Device array */ | |
550 | char name[1024], /* Service name */ | |
551 | *ptr; /* Pointer into name */ | |
552 | cups_device_t key, /* Search key */ | |
553 | *device; /* Device */ | |
554 | ||
555 | ||
556 | fprintf(stderr, "DEBUG2: query_callback(sdRef=%p, flags=%x, " | |
557 | "interfaceIndex=%d, errorCode=%d, fullName=\"%s\", " | |
558 | "rrtype=%u, rrclass=%u, rdlen=%u, rdata=%p, ttl=%u, " | |
559 | "context=%p)\n", | |
560 | sdRef, flags, interfaceIndex, errorCode, | |
561 | fullName ? fullName : "(null)", rrtype, rrclass, rdlen, rdata, ttl, | |
562 | context); | |
563 | ||
564 | /* | |
565 | * Only process "add" data... | |
566 | */ | |
567 | ||
568 | if (errorCode != kDNSServiceErr_NoError || !(flags & kDNSServiceFlagsAdd)) | |
569 | return; | |
570 | ||
571 | /* | |
572 | * Lookup the service in the devices array. | |
573 | */ | |
574 | ||
575 | devices = (cups_array_t *)context; | |
576 | key.name = name; | |
577 | ||
578 | unquote(name, fullName, sizeof(name)); | |
579 | ||
580 | if ((key.domain = strstr(name, "._tcp.")) != NULL) | |
581 | key.domain += 6; | |
582 | else | |
583 | key.domain = (char *)"local."; | |
584 | ||
585 | if ((ptr = strstr(name, "._")) != NULL) | |
586 | *ptr = '\0'; | |
587 | ||
588 | if ((device = cupsArrayFind(devices, &key)) != NULL) | |
589 | { | |
590 | /* | |
591 | * Found it, pull out the make and model from the TXT record and save it... | |
592 | */ | |
593 | ||
594 | const void *value; /* Pointer to value */ | |
595 | uint8_t valueLen; /* Length of value (max 255) */ | |
596 | char make_and_model[512], /* Manufacturer and model */ | |
597 | model[256]; /* Model */ | |
598 | ||
599 | ||
600 | if ((value = TXTRecordGetValuePtr(rdlen, rdata, "usb_MFG", | |
601 | &valueLen)) == NULL) | |
602 | value = TXTRecordGetValuePtr(rdlen, rdata, "usb_MANUFACTURER", &valueLen); | |
603 | ||
604 | if (value && valueLen) | |
605 | { | |
606 | memcpy(make_and_model, value, valueLen); | |
607 | make_and_model[valueLen] = '\0'; | |
608 | } | |
609 | else | |
610 | make_and_model[0] = '\0'; | |
611 | ||
612 | if ((value = TXTRecordGetValuePtr(rdlen, rdata, "usb_MDL", | |
613 | &valueLen)) == NULL) | |
614 | value = TXTRecordGetValuePtr(rdlen, rdata, "usb_MODEL", &valueLen); | |
615 | ||
616 | if (value && valueLen) | |
617 | { | |
618 | memcpy(model, value, valueLen); | |
619 | model[valueLen] = '\0'; | |
620 | } | |
621 | else if ((value = TXTRecordGetValuePtr(rdlen, rdata, "product", | |
622 | &valueLen)) != NULL && valueLen > 2) | |
623 | { | |
5eb9da71 MS |
624 | if (((char *)value)[0] == '(') |
625 | { | |
626 | /* | |
627 | * Strip parenthesis... | |
628 | */ | |
629 | ||
630 | memcpy(model, value + 1, valueLen - 2); | |
631 | model[valueLen - 2] = '\0'; | |
632 | } | |
633 | else | |
634 | { | |
635 | memcpy(model, value, valueLen); | |
636 | model[valueLen] = '\0'; | |
637 | } | |
7a14d768 MS |
638 | |
639 | if (!strcasecmp(model, "GPL Ghostscript") || | |
640 | !strcasecmp(model, "GNU Ghostscript") || | |
641 | !strcasecmp(model, "ESP Ghostscript")) | |
642 | { | |
643 | if ((value = TXTRecordGetValuePtr(rdlen, rdata, "ty", | |
644 | &valueLen)) != NULL) | |
645 | { | |
646 | memcpy(model, value, valueLen); | |
647 | model[valueLen] = '\0'; | |
648 | ||
649 | if ((ptr = strchr(model, ',')) != NULL) | |
650 | *ptr = '\0'; | |
651 | } | |
652 | else | |
653 | strcpy(model, "Unknown"); | |
654 | } | |
655 | } | |
656 | else | |
657 | strcpy(model, "Unknown"); | |
658 | ||
659 | if (device->make_and_model) | |
660 | free(device->make_and_model); | |
661 | ||
662 | if (make_and_model[0]) | |
663 | { | |
664 | strlcat(make_and_model, " ", sizeof(make_and_model)); | |
665 | strlcat(make_and_model, model, sizeof(make_and_model)); | |
666 | device->make_and_model = strdup(make_and_model); | |
667 | } | |
668 | else | |
669 | device->make_and_model = strdup(model); | |
670 | ||
a0f6818e MS |
671 | if ((device->type == CUPS_DEVICE_IPP || |
672 | device->type == CUPS_DEVICE_PRINTER) && | |
7a14d768 MS |
673 | (value = TXTRecordGetValuePtr(rdlen, rdata, "printer-type", |
674 | &valueLen)) != NULL) | |
675 | { | |
676 | /* | |
677 | * This is a CUPS printer! | |
678 | */ | |
679 | ||
680 | device->cups_shared = 1; | |
a0f6818e MS |
681 | |
682 | if (device->type == CUPS_DEVICE_PRINTER) | |
683 | device->sent = 1; | |
7a14d768 MS |
684 | } |
685 | } | |
686 | else | |
687 | fprintf(stderr, "DEBUG: Ignoring TXT record for \"%s\"...\n", fullName); | |
688 | } | |
689 | ||
690 | ||
691 | /* | |
692 | * 'unquote()' - Unquote a name string. | |
693 | */ | |
694 | ||
695 | static void | |
696 | unquote(char *dst, /* I - Destination buffer */ | |
697 | const char *src, /* I - Source string */ | |
698 | size_t dstsize) /* I - Size of destination buffer */ | |
699 | { | |
700 | char *dstend = dst + dstsize - 1; /* End of destination buffer */ | |
701 | ||
702 | ||
703 | while (*src && dst < dstend) | |
704 | { | |
705 | if (*src == '\\') | |
706 | { | |
707 | src ++; | |
708 | if (isdigit(src[0] & 255) && isdigit(src[1] & 255) && | |
709 | isdigit(src[2] & 255)) | |
710 | { | |
711 | *dst++ = ((((src[0] - '0') * 10) + src[1] - '0') * 10) + src[2] - '0'; | |
712 | src += 3; | |
713 | } | |
714 | else | |
715 | *dst++ = *src++; | |
716 | } | |
717 | else | |
718 | *dst++ = *src ++; | |
719 | } | |
720 | ||
721 | *dst = '\0'; | |
722 | } | |
723 | ||
724 | ||
725 | /* | |
726 | * End of "$Id$". | |
727 | */ |