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Commit | Line | Data |
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7a14d768 MS |
1 | /* |
2 | * "$Id$" | |
3 | * | |
7e86f2f6 | 4 | * DNS-SD discovery backend for CUPS. |
7a14d768 | 5 | * |
cab9f682 | 6 | * Copyright 2008-2015 by Apple Inc. |
7a14d768 | 7 | * |
7e86f2f6 MS |
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/". | |
7a14d768 | 13 | * |
7e86f2f6 | 14 | * This file is subject to the Apple OS-Developed Software exception. |
7a14d768 MS |
15 | */ |
16 | ||
17 | /* | |
18 | * Include necessary headers. | |
19 | */ | |
20 | ||
21 | #include "backend-private.h" | |
22 | #include <cups/array.h> | |
f3c17241 MS |
23 | #ifdef HAVE_DNSSD |
24 | # include <dns_sd.h> | |
25 | #endif /* HAVE_DNSSD */ | |
26 | #ifdef HAVE_AVAHI | |
27 | # include <avahi-client/client.h> | |
28 | # include <avahi-client/lookup.h> | |
29 | # include <avahi-common/simple-watch.h> | |
30 | # include <avahi-common/domain.h> | |
31 | # include <avahi-common/error.h> | |
32 | # include <avahi-common/malloc.h> | |
33 | #define kDNSServiceMaxDomainName AVAHI_DOMAIN_NAME_MAX | |
34 | #endif /* HAVE_AVAHI */ | |
7a14d768 MS |
35 | |
36 | ||
37 | /* | |
38 | * Device structure... | |
39 | */ | |
40 | ||
41 | typedef enum | |
42 | { | |
43 | CUPS_DEVICE_PRINTER = 0, /* lpd://... */ | |
d4d03398 | 44 | CUPS_DEVICE_IPPS, /* ipps://... */ |
3e7fe0ca | 45 | CUPS_DEVICE_IPP, /* ipp://... */ |
7a14d768 MS |
46 | CUPS_DEVICE_FAX_IPP, /* ipp://... */ |
47 | CUPS_DEVICE_PDL_DATASTREAM, /* socket://... */ | |
48 | CUPS_DEVICE_RIOUSBPRINT /* riousbprint://... */ | |
49 | } cups_devtype_t; | |
50 | ||
51 | ||
52 | typedef struct | |
53 | { | |
f3c17241 MS |
54 | #ifdef HAVE_DNSSD |
55 | DNSServiceRef ref; /* Service reference for query */ | |
56 | #endif /* HAVE_DNSSD */ | |
57 | #ifdef HAVE_AVAHI | |
58 | AvahiRecordBrowser *ref; /* Browser for query */ | |
59 | #endif /* HAVE_AVAHI */ | |
7a14d768 MS |
60 | char *name, /* Service name */ |
61 | *domain, /* Domain name */ | |
62 | *fullName, /* Full name */ | |
238c3832 | 63 | *make_and_model, /* Make and model from TXT record */ |
2c3f5865 MS |
64 | *device_id, /* 1284 device ID from TXT record */ |
65 | *uuid; /* UUID from TXT record */ | |
7a14d768 | 66 | cups_devtype_t type; /* Device registration type */ |
1f0275e3 MS |
67 | int priority, /* Priority associated with type */ |
68 | cups_shared, /* CUPS shared printer? */ | |
7a14d768 MS |
69 | sent; /* Did we list the device? */ |
70 | } cups_device_t; | |
71 | ||
72 | ||
38e73f87 MS |
73 | /* |
74 | * Local globals... | |
75 | */ | |
76 | ||
77 | static int job_canceled = 0; | |
78 | /* Set to 1 on SIGTERM */ | |
f3c17241 MS |
79 | #ifdef HAVE_AVAHI |
80 | static AvahiSimplePoll *simple_poll = NULL; | |
81 | /* Poll information */ | |
82 | static int got_data = 0; /* Got data from poll? */ | |
5353e5ee | 83 | static int browsers = 0; /* Number of running browsers */ |
f3c17241 | 84 | #endif /* HAVE_AVAHI */ |
38e73f87 MS |
85 | |
86 | ||
7a14d768 MS |
87 | /* |
88 | * Local functions... | |
89 | */ | |
90 | ||
f3c17241 | 91 | #ifdef HAVE_DNSSD |
7a14d768 MS |
92 | static void browse_callback(DNSServiceRef sdRef, |
93 | DNSServiceFlags flags, | |
94 | uint32_t interfaceIndex, | |
95 | DNSServiceErrorType errorCode, | |
96 | const char *serviceName, | |
97 | const char *regtype, | |
82cc1f9a MS |
98 | const char *replyDomain, void *context) |
99 | __attribute__((nonnull(1,5,6,7,8))); | |
7a14d768 MS |
100 | static void browse_local_callback(DNSServiceRef sdRef, |
101 | DNSServiceFlags flags, | |
102 | uint32_t interfaceIndex, | |
103 | DNSServiceErrorType errorCode, | |
104 | const char *serviceName, | |
105 | const char *regtype, | |
106 | const char *replyDomain, | |
82cc1f9a MS |
107 | void *context) |
108 | __attribute__((nonnull(1,5,6,7,8))); | |
f3c17241 MS |
109 | #endif /* HAVE_DNSSD */ |
110 | #ifdef HAVE_AVAHI | |
111 | static void browse_callback(AvahiServiceBrowser *browser, | |
112 | AvahiIfIndex interface, | |
113 | AvahiProtocol protocol, | |
114 | AvahiBrowserEvent event, | |
115 | const char *serviceName, | |
116 | const char *regtype, | |
117 | const char *replyDomain, | |
118 | AvahiLookupResultFlags flags, | |
119 | void *context); | |
120 | static void client_callback(AvahiClient *client, | |
121 | AvahiClientState state, | |
122 | void *context); | |
123 | #endif /* HAVE_AVAHI */ | |
124 | ||
7a14d768 | 125 | static int compare_devices(cups_device_t *a, cups_device_t *b); |
7e86f2f6 | 126 | static void exec_backend(char **argv) __attribute__((noreturn)); |
7a14d768 MS |
127 | static cups_device_t *get_device(cups_array_t *devices, |
128 | const char *serviceName, | |
129 | const char *regtype, | |
82cc1f9a MS |
130 | const char *replyDomain) |
131 | __attribute__((nonnull(1,2,3,4))); | |
f3c17241 | 132 | #ifdef HAVE_DNSSD |
7a14d768 MS |
133 | static void query_callback(DNSServiceRef sdRef, |
134 | DNSServiceFlags flags, | |
135 | uint32_t interfaceIndex, | |
136 | DNSServiceErrorType errorCode, | |
137 | const char *fullName, uint16_t rrtype, | |
138 | uint16_t rrclass, uint16_t rdlen, | |
139 | const void *rdata, uint32_t ttl, | |
82cc1f9a MS |
140 | void *context) |
141 | __attribute__((nonnull(1,5,9,11))); | |
f3c17241 MS |
142 | #elif defined(HAVE_AVAHI) |
143 | static int poll_callback(struct pollfd *pollfds, | |
144 | unsigned int num_pollfds, int timeout, | |
145 | void *context); | |
146 | static void query_callback(AvahiRecordBrowser *browser, | |
147 | AvahiIfIndex interface, | |
148 | AvahiProtocol protocol, | |
149 | AvahiBrowserEvent event, | |
150 | const char *name, uint16_t rrclass, | |
151 | uint16_t rrtype, const void *rdata, | |
152 | size_t rdlen, | |
153 | AvahiLookupResultFlags flags, | |
154 | void *context); | |
155 | #endif /* HAVE_DNSSD */ | |
38e73f87 | 156 | static void sigterm_handler(int sig); |
82cc1f9a MS |
157 | static void unquote(char *dst, const char *src, size_t dstsize) |
158 | __attribute__((nonnull(1,2))); | |
7a14d768 MS |
159 | |
160 | ||
161 | /* | |
162 | * 'main()' - Browse for printers. | |
163 | */ | |
164 | ||
165 | int /* O - Exit status */ | |
166 | main(int argc, /* I - Number of command-line args */ | |
167 | char *argv[]) /* I - Command-line arguments */ | |
168 | { | |
c5571a1d | 169 | const char *name; /* Backend name */ |
f3c17241 MS |
170 | cups_array_t *devices; /* Device array */ |
171 | cups_device_t *device; /* Current device */ | |
172 | char uriName[1024]; /* Unquoted fullName for URI */ | |
173 | #ifdef HAVE_DNSSD | |
174 | int fd; /* Main file descriptor */ | |
175 | fd_set input; /* Input set for select() */ | |
176 | struct timeval timeout; /* Timeout for select() */ | |
7a14d768 MS |
177 | DNSServiceRef main_ref, /* Main service reference */ |
178 | fax_ipp_ref, /* IPP fax service reference */ | |
179 | ipp_ref, /* IPP service reference */ | |
180 | ipp_tls_ref, /* IPP w/TLS service reference */ | |
d4d03398 | 181 | ipps_ref, /* IPP service reference */ |
7a14d768 MS |
182 | local_fax_ipp_ref, /* Local IPP fax service reference */ |
183 | local_ipp_ref, /* Local IPP service reference */ | |
184 | local_ipp_tls_ref, /* Local IPP w/TLS service reference */ | |
d4d03398 | 185 | local_ipps_ref, /* Local IPP service reference */ |
7a14d768 MS |
186 | local_printer_ref, /* Local LPD service reference */ |
187 | pdl_datastream_ref, /* AppSocket service reference */ | |
188 | printer_ref, /* LPD service reference */ | |
189 | riousbprint_ref; /* Remote IO service reference */ | |
f3c17241 MS |
190 | #endif /* HAVE_DNSSD */ |
191 | #ifdef HAVE_AVAHI | |
192 | AvahiClient *client; /* Client information */ | |
193 | int error; /* Error code, if any */ | |
194 | #endif /* HAVE_AVAHI */ | |
38e73f87 MS |
195 | #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET) |
196 | struct sigaction action; /* Actions for POSIX signals */ | |
197 | #endif /* HAVE_SIGACTION && !HAVE_SIGSET */ | |
7a14d768 MS |
198 | |
199 | ||
200 | /* | |
38e73f87 | 201 | * Don't buffer stderr, and catch SIGTERM... |
7a14d768 MS |
202 | */ |
203 | ||
204 | setbuf(stderr, NULL); | |
205 | ||
38e73f87 MS |
206 | #ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */ |
207 | sigset(SIGTERM, sigterm_handler); | |
208 | #elif defined(HAVE_SIGACTION) | |
209 | memset(&action, 0, sizeof(action)); | |
210 | ||
211 | sigemptyset(&action.sa_mask); | |
ee6ddad2 MS |
212 | action.sa_handler = sigterm_handler; |
213 | sigaction(SIGTERM, &action, NULL); | |
38e73f87 MS |
214 | #else |
215 | signal(SIGTERM, sigterm_handler); | |
216 | #endif /* HAVE_SIGSET */ | |
217 | ||
218 | /* | |
219 | * Check command-line... | |
220 | */ | |
221 | ||
7a14d768 MS |
222 | if (argc >= 6) |
223 | exec_backend(argv); | |
224 | else if (argc != 1) | |
225 | { | |
0837b7e8 MS |
226 | _cupsLangPrintf(stderr, |
227 | _("Usage: %s job-id user title copies options [file]"), | |
228 | argv[0]); | |
7a14d768 MS |
229 | return (1); |
230 | } | |
231 | ||
c5571a1d MS |
232 | /* |
233 | * Only do discovery when run as "dnssd"... | |
234 | */ | |
235 | ||
236 | if ((name = strrchr(argv[0], '/')) != NULL) | |
237 | name ++; | |
238 | else | |
239 | name = argv[0]; | |
240 | ||
241 | if (strcmp(name, "dnssd")) | |
242 | return (0); | |
243 | ||
7a14d768 MS |
244 | /* |
245 | * Create an array to track devices... | |
246 | */ | |
247 | ||
248 | devices = cupsArrayNew((cups_array_func_t)compare_devices, NULL); | |
249 | ||
250 | /* | |
251 | * Browse for different kinds of printers... | |
252 | */ | |
253 | ||
f3c17241 | 254 | #ifdef HAVE_DNSSD |
7a14d768 MS |
255 | if (DNSServiceCreateConnection(&main_ref) != kDNSServiceErr_NoError) |
256 | { | |
257 | perror("ERROR: Unable to create service connection"); | |
258 | return (1); | |
259 | } | |
260 | ||
261 | fd = DNSServiceRefSockFD(main_ref); | |
262 | ||
263 | fax_ipp_ref = main_ref; | |
264 | DNSServiceBrowse(&fax_ipp_ref, kDNSServiceFlagsShareConnection, 0, | |
265 | "_fax-ipp._tcp", NULL, browse_callback, devices); | |
266 | ||
267 | ipp_ref = main_ref; | |
268 | DNSServiceBrowse(&ipp_ref, kDNSServiceFlagsShareConnection, 0, | |
269 | "_ipp._tcp", NULL, browse_callback, devices); | |
270 | ||
271 | ipp_tls_ref = main_ref; | |
272 | DNSServiceBrowse(&ipp_tls_ref, kDNSServiceFlagsShareConnection, 0, | |
273 | "_ipp-tls._tcp", NULL, browse_callback, devices); | |
274 | ||
d4d03398 | 275 | ipps_ref = main_ref; |
85dda01c | 276 | DNSServiceBrowse(&ipps_ref, kDNSServiceFlagsShareConnection, 0, |
d4d03398 MS |
277 | "_ipps._tcp", NULL, browse_callback, devices); |
278 | ||
7a14d768 MS |
279 | local_fax_ipp_ref = main_ref; |
280 | DNSServiceBrowse(&local_fax_ipp_ref, kDNSServiceFlagsShareConnection, | |
281 | kDNSServiceInterfaceIndexLocalOnly, | |
282 | "_fax-ipp._tcp", NULL, browse_local_callback, devices); | |
283 | ||
284 | local_ipp_ref = main_ref; | |
285 | DNSServiceBrowse(&local_ipp_ref, kDNSServiceFlagsShareConnection, | |
286 | kDNSServiceInterfaceIndexLocalOnly, | |
287 | "_ipp._tcp", NULL, browse_local_callback, devices); | |
288 | ||
289 | local_ipp_tls_ref = main_ref; | |
290 | DNSServiceBrowse(&local_ipp_tls_ref, kDNSServiceFlagsShareConnection, | |
291 | kDNSServiceInterfaceIndexLocalOnly, | |
292 | "_ipp-tls._tcp", NULL, browse_local_callback, devices); | |
293 | ||
d4d03398 | 294 | local_ipps_ref = main_ref; |
85dda01c | 295 | DNSServiceBrowse(&local_ipps_ref, kDNSServiceFlagsShareConnection, |
d4d03398 MS |
296 | kDNSServiceInterfaceIndexLocalOnly, |
297 | "_ipps._tcp", NULL, browse_local_callback, devices); | |
298 | ||
7a14d768 MS |
299 | local_printer_ref = main_ref; |
300 | DNSServiceBrowse(&local_printer_ref, kDNSServiceFlagsShareConnection, | |
301 | kDNSServiceInterfaceIndexLocalOnly, | |
302 | "_printer._tcp", NULL, browse_local_callback, devices); | |
303 | ||
88f9aafc | 304 | pdl_datastream_ref = main_ref; |
7a14d768 MS |
305 | DNSServiceBrowse(&pdl_datastream_ref, kDNSServiceFlagsShareConnection, 0, |
306 | "_pdl-datastream._tcp", NULL, browse_callback, devices); | |
307 | ||
308 | printer_ref = main_ref; | |
309 | DNSServiceBrowse(&printer_ref, kDNSServiceFlagsShareConnection, 0, | |
310 | "_printer._tcp", NULL, browse_callback, devices); | |
311 | ||
312 | riousbprint_ref = main_ref; | |
313 | DNSServiceBrowse(&riousbprint_ref, kDNSServiceFlagsShareConnection, 0, | |
314 | "_riousbprint._tcp", NULL, browse_callback, devices); | |
f3c17241 MS |
315 | #endif /* HAVE_DNSSD */ |
316 | ||
317 | #ifdef HAVE_AVAHI | |
318 | if ((simple_poll = avahi_simple_poll_new()) == NULL) | |
319 | { | |
a29fd7dd | 320 | fputs("DEBUG: Unable to create Avahi simple poll object.\n", stderr); |
cab9f682 | 321 | return (0); |
f3c17241 MS |
322 | } |
323 | ||
324 | avahi_simple_poll_set_func(simple_poll, poll_callback, NULL); | |
325 | ||
326 | client = avahi_client_new(avahi_simple_poll_get(simple_poll), | |
327 | 0, client_callback, simple_poll, &error); | |
328 | if (!client) | |
329 | { | |
a29fd7dd | 330 | fputs("DEBUG: Unable to create Avahi client.\n", stderr); |
cab9f682 | 331 | return (0); |
f3c17241 MS |
332 | } |
333 | ||
5353e5ee | 334 | browsers = 6; |
f3c17241 MS |
335 | avahi_service_browser_new(client, AVAHI_IF_UNSPEC, |
336 | AVAHI_PROTO_UNSPEC, | |
337 | "_fax-ipp._tcp", NULL, 0, | |
338 | browse_callback, devices); | |
339 | avahi_service_browser_new(client, AVAHI_IF_UNSPEC, | |
340 | AVAHI_PROTO_UNSPEC, | |
341 | "_ipp._tcp", NULL, 0, | |
342 | browse_callback, devices); | |
343 | avahi_service_browser_new(client, AVAHI_IF_UNSPEC, | |
344 | AVAHI_PROTO_UNSPEC, | |
345 | "_ipp-tls._tcp", NULL, 0, | |
346 | browse_callback, devices); | |
347 | avahi_service_browser_new(client, AVAHI_IF_UNSPEC, | |
348 | AVAHI_PROTO_UNSPEC, | |
349 | "_ipps._tcp", NULL, 0, | |
350 | browse_callback, devices); | |
351 | avahi_service_browser_new(client, AVAHI_IF_UNSPEC, | |
352 | AVAHI_PROTO_UNSPEC, | |
353 | "_pdl-datastream._tcp", | |
354 | NULL, 0, | |
355 | browse_callback, | |
356 | devices); | |
357 | avahi_service_browser_new(client, AVAHI_IF_UNSPEC, | |
358 | AVAHI_PROTO_UNSPEC, | |
359 | "_printer._tcp", NULL, 0, | |
360 | browse_callback, devices); | |
361 | #endif /* HAVE_AVAHI */ | |
7a14d768 MS |
362 | |
363 | /* | |
364 | * Loop until we are killed... | |
365 | */ | |
366 | ||
38e73f87 | 367 | while (!job_canceled) |
7a14d768 | 368 | { |
f3c17241 MS |
369 | int announce = 0; /* Announce printers? */ |
370 | ||
371 | #ifdef HAVE_DNSSD | |
7a14d768 MS |
372 | FD_ZERO(&input); |
373 | FD_SET(fd, &input); | |
374 | ||
d4d03398 | 375 | timeout.tv_sec = 0; |
f3c17241 | 376 | timeout.tv_usec = 500000; |
7a14d768 MS |
377 | |
378 | if (select(fd + 1, &input, NULL, NULL, &timeout) < 0) | |
379 | continue; | |
380 | ||
381 | if (FD_ISSET(fd, &input)) | |
382 | { | |
383 | /* | |
384 | * Process results of our browsing... | |
385 | */ | |
386 | ||
387 | DNSServiceProcessResult(main_ref); | |
388 | } | |
389 | else | |
f3c17241 MS |
390 | announce = 1; |
391 | ||
392 | #elif defined(HAVE_AVAHI) | |
393 | got_data = 0; | |
394 | ||
395 | if ((error = avahi_simple_poll_iterate(simple_poll, 500)) > 0) | |
396 | { | |
397 | /* | |
398 | * We've been told to exit the loop. Perhaps the connection to | |
399 | * Avahi failed. | |
400 | */ | |
401 | ||
402 | break; | |
403 | } | |
404 | ||
405 | if (!got_data) | |
406 | announce = 1; | |
407 | #endif /* HAVE_DNSSD */ | |
408 | ||
409 | /* fprintf(stderr, "DEBUG: announce=%d\n", announce);*/ | |
410 | ||
411 | if (announce) | |
7a14d768 MS |
412 | { |
413 | /* | |
414 | * Announce any devices we've found... | |
415 | */ | |
416 | ||
f3c17241 | 417 | #ifdef HAVE_DNSSD |
58dc1933 | 418 | DNSServiceErrorType status; /* DNS query status */ |
f3c17241 | 419 | #endif /* HAVE_DNSSD */ |
1f0275e3 | 420 | cups_device_t *best; /* Best matching device */ |
7a14d768 | 421 | char device_uri[1024]; /* Device URI */ |
5eb9da71 | 422 | int count; /* Number of queries */ |
d4d03398 | 423 | int sent; /* Number of sent */ |
7a14d768 | 424 | |
1f0275e3 | 425 | for (device = (cups_device_t *)cupsArrayFirst(devices), |
d4d03398 | 426 | best = NULL, count = 0, sent = 0; |
7a14d768 MS |
427 | device; |
428 | device = (cups_device_t *)cupsArrayNext(devices)) | |
d4d03398 MS |
429 | { |
430 | if (device->sent) | |
431 | sent ++; | |
432 | ||
433 | if (device->ref) | |
434 | count ++; | |
435 | ||
7a14d768 MS |
436 | if (!device->ref && !device->sent) |
437 | { | |
438 | /* | |
439 | * Found the device, now get the TXT record(s) for it... | |
440 | */ | |
441 | ||
f3c17241 | 442 | if (count < 50) |
5eb9da71 | 443 | { |
5eb9da71 MS |
444 | fprintf(stderr, "DEBUG: Querying \"%s\"...\n", device->fullName); |
445 | ||
f3c17241 MS |
446 | #ifdef HAVE_DNSSD |
447 | device->ref = main_ref; | |
448 | ||
58dc1933 MS |
449 | status = DNSServiceQueryRecord(&(device->ref), |
450 | kDNSServiceFlagsShareConnection, | |
451 | 0, device->fullName, | |
452 | kDNSServiceType_TXT, | |
453 | kDNSServiceClass_IN, query_callback, | |
f3c17241 | 454 | device); |
58dc1933 | 455 | if (status != kDNSServiceErr_NoError) |
f3c17241 MS |
456 | fprintf(stderr, |
457 | "ERROR: Unable to query \"%s\" for TXT records: %d\n", | |
458 | device->fullName, status); | |
459 | /* Users never see this */ | |
58dc1933 | 460 | else |
5eb9da71 | 461 | count ++; |
f3c17241 MS |
462 | |
463 | #else | |
464 | if ((device->ref = avahi_record_browser_new(client, AVAHI_IF_UNSPEC, | |
465 | AVAHI_PROTO_UNSPEC, | |
466 | device->fullName, | |
467 | AVAHI_DNS_CLASS_IN, | |
468 | AVAHI_DNS_TYPE_TXT, | |
469 | 0, | |
470 | query_callback, | |
471 | device)) == NULL) | |
472 | fprintf(stderr, | |
473 | "ERROR: Unable to query \"%s\" for TXT records: %s\n", | |
474 | device->fullName, | |
475 | avahi_strerror(avahi_client_errno(client))); | |
476 | /* Users never see this */ | |
477 | else | |
478 | count ++; | |
479 | #endif /* HAVE_AVAHI */ | |
5eb9da71 | 480 | } |
7a14d768 MS |
481 | } |
482 | else if (!device->sent) | |
483 | { | |
f3c17241 | 484 | #ifdef HAVE_DNSSD |
7a14d768 MS |
485 | /* |
486 | * Got the TXT records, now report the device... | |
487 | */ | |
488 | ||
489 | DNSServiceRefDeallocate(device->ref); | |
f3c17241 MS |
490 | #else |
491 | avahi_record_browser_free(device->ref); | |
492 | #endif /* HAVE_DNSSD */ | |
493 | ||
494 | device->ref = NULL; | |
7a14d768 | 495 | |
1f0275e3 MS |
496 | if (!best) |
497 | best = device; | |
88f9aafc MS |
498 | else if (_cups_strcasecmp(best->name, device->name) || |
499 | _cups_strcasecmp(best->domain, device->domain)) | |
1f0275e3 | 500 | { |
bf3816c7 MS |
501 | unquote(uriName, best->fullName, sizeof(uriName)); |
502 | ||
2c3f5865 MS |
503 | if (best->uuid) |
504 | httpAssembleURIf(HTTP_URI_CODING_ALL, device_uri, | |
505 | sizeof(device_uri), "dnssd", NULL, uriName, 0, | |
506 | best->cups_shared ? "/cups?uuid=%s" : "/?uuid=%s", | |
507 | best->uuid); | |
508 | else | |
509 | httpAssembleURI(HTTP_URI_CODING_ALL, device_uri, | |
510 | sizeof(device_uri), "dnssd", NULL, uriName, 0, | |
511 | best->cups_shared ? "/cups" : "/"); | |
1f0275e3 | 512 | |
749b1e90 | 513 | cupsBackendReport("network", device_uri, best->make_and_model, |
238c3832 | 514 | best->name, best->device_id, NULL); |
1f0275e3 MS |
515 | best->sent = 1; |
516 | best = device; | |
d4d03398 MS |
517 | |
518 | sent ++; | |
1f0275e3 MS |
519 | } |
520 | else if (best->priority > device->priority || | |
521 | (best->priority == device->priority && | |
522 | best->type < device->type)) | |
523 | { | |
524 | best->sent = 1; | |
525 | best = device; | |
d4d03398 MS |
526 | |
527 | sent ++; | |
1f0275e3 MS |
528 | } |
529 | else | |
d4d03398 | 530 | { |
1f0275e3 | 531 | device->sent = 1; |
d4d03398 MS |
532 | |
533 | sent ++; | |
534 | } | |
1f0275e3 | 535 | } |
d4d03398 | 536 | } |
7a14d768 | 537 | |
1f0275e3 MS |
538 | if (best) |
539 | { | |
bf3816c7 MS |
540 | unquote(uriName, best->fullName, sizeof(uriName)); |
541 | ||
2c3f5865 MS |
542 | if (best->uuid) |
543 | httpAssembleURIf(HTTP_URI_CODING_ALL, device_uri, | |
544 | sizeof(device_uri), "dnssd", NULL, uriName, 0, | |
545 | best->cups_shared ? "/cups?uuid=%s" : "/?uuid=%s", | |
546 | best->uuid); | |
547 | else | |
548 | httpAssembleURI(HTTP_URI_CODING_ALL, device_uri, | |
549 | sizeof(device_uri), "dnssd", NULL, uriName, 0, | |
550 | best->cups_shared ? "/cups" : "/"); | |
7a14d768 | 551 | |
749b1e90 | 552 | cupsBackendReport("network", device_uri, best->make_and_model, |
238c3832 | 553 | best->name, best->device_id, NULL); |
1f0275e3 | 554 | best->sent = 1; |
d4d03398 | 555 | sent ++; |
1f0275e3 | 556 | } |
d4d03398 | 557 | |
f3c17241 MS |
558 | fprintf(stderr, "DEBUG: sent=%d, count=%d\n", sent, count); |
559 | ||
5353e5ee MS |
560 | #ifdef HAVE_AVAHI |
561 | if (sent == cupsArrayCount(devices) && browsers == 0) | |
562 | #else | |
d4d03398 | 563 | if (sent == cupsArrayCount(devices)) |
5353e5ee | 564 | #endif /* HAVE_AVAHI */ |
d4d03398 | 565 | break; |
7a14d768 MS |
566 | } |
567 | } | |
38e73f87 MS |
568 | |
569 | return (CUPS_BACKEND_OK); | |
7a14d768 MS |
570 | } |
571 | ||
572 | ||
f3c17241 | 573 | #ifdef HAVE_DNSSD |
7a14d768 MS |
574 | /* |
575 | * 'browse_callback()' - Browse devices. | |
576 | */ | |
577 | ||
578 | static void | |
579 | browse_callback( | |
580 | DNSServiceRef sdRef, /* I - Service reference */ | |
581 | DNSServiceFlags flags, /* I - Option flags */ | |
582 | uint32_t interfaceIndex, /* I - Interface number */ | |
583 | DNSServiceErrorType errorCode, /* I - Error, if any */ | |
584 | const char *serviceName, /* I - Name of service/device */ | |
585 | const char *regtype, /* I - Type of service */ | |
586 | const char *replyDomain, /* I - Service domain */ | |
587 | void *context) /* I - Devices array */ | |
588 | { | |
589 | fprintf(stderr, "DEBUG2: browse_callback(sdRef=%p, flags=%x, " | |
590 | "interfaceIndex=%d, errorCode=%d, serviceName=\"%s\", " | |
591 | "regtype=\"%s\", replyDomain=\"%s\", context=%p)\n", | |
592 | sdRef, flags, interfaceIndex, errorCode, | |
a29fd7dd | 593 | serviceName, regtype, replyDomain, context); |
7a14d768 MS |
594 | |
595 | /* | |
596 | * Only process "add" data... | |
597 | */ | |
598 | ||
599 | if (errorCode != kDNSServiceErr_NoError || !(flags & kDNSServiceFlagsAdd)) | |
600 | return; | |
601 | ||
602 | /* | |
603 | * Get the device... | |
604 | */ | |
605 | ||
606 | get_device((cups_array_t *)context, serviceName, regtype, replyDomain); | |
607 | } | |
608 | ||
609 | ||
610 | /* | |
611 | * 'browse_local_callback()' - Browse local devices. | |
612 | */ | |
613 | ||
614 | static void | |
615 | browse_local_callback( | |
616 | DNSServiceRef sdRef, /* I - Service reference */ | |
617 | DNSServiceFlags flags, /* I - Option flags */ | |
618 | uint32_t interfaceIndex, /* I - Interface number */ | |
619 | DNSServiceErrorType errorCode, /* I - Error, if any */ | |
620 | const char *serviceName, /* I - Name of service/device */ | |
621 | const char *regtype, /* I - Type of service */ | |
622 | const char *replyDomain, /* I - Service domain */ | |
623 | void *context) /* I - Devices array */ | |
624 | { | |
625 | cups_device_t *device; /* Device */ | |
626 | ||
627 | ||
628 | fprintf(stderr, "DEBUG2: browse_local_callback(sdRef=%p, flags=%x, " | |
629 | "interfaceIndex=%d, errorCode=%d, serviceName=\"%s\", " | |
630 | "regtype=\"%s\", replyDomain=\"%s\", context=%p)\n", | |
631 | sdRef, flags, interfaceIndex, errorCode, | |
a29fd7dd | 632 | serviceName, regtype, replyDomain, context); |
7a14d768 MS |
633 | |
634 | /* | |
635 | * Only process "add" data... | |
636 | */ | |
637 | ||
638 | if (errorCode != kDNSServiceErr_NoError || !(flags & kDNSServiceFlagsAdd)) | |
639 | return; | |
640 | ||
641 | /* | |
642 | * Get the device... | |
643 | */ | |
644 | ||
645 | device = get_device((cups_array_t *)context, serviceName, regtype, | |
646 | replyDomain); | |
647 | ||
648 | /* | |
649 | * Hide locally-registered devices... | |
650 | */ | |
651 | ||
652 | fprintf(stderr, "DEBUG: Hiding local printer \"%s\"...\n", | |
653 | device->fullName); | |
654 | device->sent = 1; | |
655 | } | |
f3c17241 MS |
656 | #endif /* HAVE_DNSSD */ |
657 | ||
658 | ||
659 | #ifdef HAVE_AVAHI | |
660 | /* | |
661 | * 'browse_callback()' - Browse devices. | |
662 | */ | |
663 | ||
664 | static void | |
665 | browse_callback( | |
666 | AvahiServiceBrowser *browser, /* I - Browser */ | |
667 | AvahiIfIndex interface, /* I - Interface index (unused) */ | |
668 | AvahiProtocol protocol, /* I - Network protocol (unused) */ | |
669 | AvahiBrowserEvent event, /* I - What happened */ | |
670 | const char *name, /* I - Service name */ | |
671 | const char *type, /* I - Registration type */ | |
672 | const char *domain, /* I - Domain */ | |
673 | AvahiLookupResultFlags flags, /* I - Flags */ | |
674 | void *context) /* I - Devices array */ | |
675 | { | |
676 | AvahiClient *client = avahi_service_browser_get_client(browser); | |
677 | /* Client information */ | |
678 | ||
679 | ||
680 | (void)interface; | |
681 | (void)protocol; | |
682 | (void)context; | |
683 | ||
684 | switch (event) | |
685 | { | |
686 | case AVAHI_BROWSER_FAILURE: | |
687 | fprintf(stderr, "DEBUG: browse_callback: %s\n", | |
688 | avahi_strerror(avahi_client_errno(client))); | |
689 | avahi_simple_poll_quit(simple_poll); | |
690 | break; | |
691 | ||
692 | case AVAHI_BROWSER_NEW: | |
693 | /* | |
694 | * This object is new on the network. | |
695 | */ | |
696 | ||
697 | if (flags & AVAHI_LOOKUP_RESULT_LOCAL) | |
698 | { | |
699 | /* | |
700 | * This comes from the local machine so ignore it. | |
701 | */ | |
702 | ||
703 | fprintf(stderr, "DEBUG: Ignoring local service %s.\n", name); | |
704 | } | |
705 | else | |
706 | { | |
707 | /* | |
708 | * Create a device entry for it if it doesn't yet exist. | |
709 | */ | |
710 | ||
711 | get_device((cups_array_t *)context, name, type, domain); | |
712 | } | |
713 | break; | |
714 | ||
715 | case AVAHI_BROWSER_REMOVE: | |
f3c17241 MS |
716 | case AVAHI_BROWSER_CACHE_EXHAUSTED: |
717 | break; | |
5353e5ee MS |
718 | |
719 | case AVAHI_BROWSER_ALL_FOR_NOW: | |
720 | browsers--; | |
721 | break; | |
f3c17241 MS |
722 | } |
723 | } | |
724 | ||
725 | ||
726 | /* | |
727 | * 'client_callback()' - Avahi client callback function. | |
728 | */ | |
729 | ||
730 | static void | |
731 | client_callback( | |
732 | AvahiClient *client, /* I - Client information (unused) */ | |
733 | AvahiClientState state, /* I - Current state */ | |
734 | void *context) /* I - User data (unused) */ | |
735 | { | |
736 | (void)client; | |
737 | (void)context; | |
738 | ||
739 | /* | |
740 | * If the connection drops, quit. | |
741 | */ | |
742 | ||
743 | if (state == AVAHI_CLIENT_FAILURE) | |
744 | { | |
745 | fputs("DEBUG: Avahi connection failed.\n", stderr); | |
746 | avahi_simple_poll_quit(simple_poll); | |
747 | } | |
748 | } | |
749 | #endif /* HAVE_AVAHI */ | |
7a14d768 MS |
750 | |
751 | ||
752 | /* | |
753 | * 'compare_devices()' - Compare two devices. | |
754 | */ | |
755 | ||
756 | static int /* O - Result of comparison */ | |
757 | compare_devices(cups_device_t *a, /* I - First device */ | |
758 | cups_device_t *b) /* I - Second device */ | |
759 | { | |
38e73f87 | 760 | return (strcmp(a->name, b->name)); |
7a14d768 MS |
761 | } |
762 | ||
763 | ||
764 | /* | |
765 | * 'exec_backend()' - Execute the backend that corresponds to the | |
766 | * resolved service name. | |
767 | */ | |
768 | ||
769 | static void | |
770 | exec_backend(char **argv) /* I - Command-line arguments */ | |
771 | { | |
772 | const char *resolved_uri, /* Resolved device URI */ | |
773 | *cups_serverbin; /* Location of programs */ | |
774 | char scheme[1024], /* Scheme from URI */ | |
775 | *ptr, /* Pointer into scheme */ | |
776 | filename[1024]; /* Backend filename */ | |
777 | ||
778 | ||
779 | /* | |
780 | * Resolve the device URI... | |
781 | */ | |
782 | ||
e07d4801 MS |
783 | job_canceled = -1; |
784 | ||
0268488e MS |
785 | while ((resolved_uri = cupsBackendDeviceURI(argv)) == NULL) |
786 | { | |
787 | _cupsLangPrintFilter(stderr, "INFO", _("Unable to locate printer.")); | |
788 | sleep(10); | |
789 | ||
790 | if (getenv("CLASS") != NULL) | |
791 | exit(CUPS_BACKEND_FAILED); | |
792 | } | |
7a14d768 MS |
793 | |
794 | /* | |
795 | * Extract the scheme from the URI... | |
796 | */ | |
797 | ||
798 | strlcpy(scheme, resolved_uri, sizeof(scheme)); | |
799 | if ((ptr = strchr(scheme, ':')) != NULL) | |
800 | *ptr = '\0'; | |
801 | ||
802 | /* | |
803 | * Get the filename of the backend... | |
804 | */ | |
805 | ||
806 | if ((cups_serverbin = getenv("CUPS_SERVERBIN")) == NULL) | |
807 | cups_serverbin = CUPS_SERVERBIN; | |
808 | ||
809 | snprintf(filename, sizeof(filename), "%s/backend/%s", cups_serverbin, scheme); | |
810 | ||
811 | /* | |
38e73f87 | 812 | * Overwrite the device URI and run the new backend... |
7a14d768 MS |
813 | */ |
814 | ||
815 | setenv("DEVICE_URI", resolved_uri, 1); | |
816 | ||
817 | argv[0] = (char *)resolved_uri; | |
818 | ||
819 | fprintf(stderr, "DEBUG: Executing backend \"%s\"...\n", filename); | |
820 | ||
821 | execv(filename, argv); | |
822 | ||
823 | fprintf(stderr, "ERROR: Unable to execute backend \"%s\": %s\n", filename, | |
824 | strerror(errno)); | |
825 | exit(CUPS_BACKEND_STOP); | |
826 | } | |
827 | ||
828 | ||
f3c17241 MS |
829 | /* |
830 | * 'device_type()' - Get DNS-SD type enumeration from string. | |
831 | */ | |
832 | ||
7e86f2f6 MS |
833 | static cups_devtype_t /* O - Device type */ |
834 | device_type(const char *regtype) /* I - Service registration type */ | |
f3c17241 MS |
835 | { |
836 | #ifdef HAVE_AVAHI | |
837 | if (!strcmp(regtype, "_ipp._tcp")) | |
838 | return (CUPS_DEVICE_IPP); | |
839 | else if (!strcmp(regtype, "_ipps._tcp") || | |
840 | !strcmp(regtype, "_ipp-tls._tcp")) | |
841 | return (CUPS_DEVICE_IPPS); | |
842 | else if (!strcmp(regtype, "_fax-ipp._tcp")) | |
843 | return (CUPS_DEVICE_FAX_IPP); | |
844 | else if (!strcmp(regtype, "_printer._tcp")) | |
845 | return (CUPS_DEVICE_PDL_DATASTREAM); | |
846 | #else | |
847 | if (!strcmp(regtype, "_ipp._tcp.")) | |
848 | return (CUPS_DEVICE_IPP); | |
849 | else if (!strcmp(regtype, "_ipps._tcp.") || | |
850 | !strcmp(regtype, "_ipp-tls._tcp.")) | |
851 | return (CUPS_DEVICE_IPPS); | |
852 | else if (!strcmp(regtype, "_fax-ipp._tcp.")) | |
853 | return (CUPS_DEVICE_FAX_IPP); | |
854 | else if (!strcmp(regtype, "_printer._tcp.")) | |
855 | return (CUPS_DEVICE_PRINTER); | |
856 | else if (!strcmp(regtype, "_pdl-datastream._tcp.")) | |
857 | return (CUPS_DEVICE_PDL_DATASTREAM); | |
858 | #endif /* HAVE_AVAHI */ | |
859 | ||
860 | return (CUPS_DEVICE_RIOUSBPRINT); | |
861 | } | |
862 | ||
863 | ||
7a14d768 MS |
864 | /* |
865 | * 'get_device()' - Create or update a device. | |
866 | */ | |
867 | ||
868 | static cups_device_t * /* O - Device */ | |
869 | get_device(cups_array_t *devices, /* I - Device array */ | |
870 | const char *serviceName, /* I - Name of service/device */ | |
871 | const char *regtype, /* I - Type of service */ | |
872 | const char *replyDomain) /* I - Service domain */ | |
873 | { | |
874 | cups_device_t key, /* Search key */ | |
875 | *device; /* Device */ | |
58dc1933 MS |
876 | char fullName[kDNSServiceMaxDomainName]; |
877 | /* Full name for query */ | |
7a14d768 MS |
878 | |
879 | ||
880 | /* | |
881 | * See if this is a new device... | |
882 | */ | |
883 | ||
38e73f87 | 884 | key.name = (char *)serviceName; |
f3c17241 | 885 | key.type = device_type(regtype); |
7a14d768 | 886 | |
1f0275e3 MS |
887 | for (device = cupsArrayFind(devices, &key); |
888 | device; | |
889 | device = cupsArrayNext(devices)) | |
88f9aafc | 890 | if (_cups_strcasecmp(device->name, key.name)) |
1f0275e3 MS |
891 | break; |
892 | else if (device->type == key.type) | |
38e73f87 | 893 | { |
88f9aafc MS |
894 | if (!_cups_strcasecmp(device->domain, "local.") && |
895 | _cups_strcasecmp(device->domain, replyDomain)) | |
38e73f87 MS |
896 | { |
897 | /* | |
898 | * Update the .local listing to use the "global" domain name instead. | |
899 | * The backend will try local lookups first, then the global domain name. | |
900 | */ | |
901 | ||
902 | free(device->domain); | |
903 | device->domain = strdup(replyDomain); | |
904 | ||
f3c17241 | 905 | #ifdef HAVE_DNSSD |
38e73f87 MS |
906 | DNSServiceConstructFullName(fullName, device->name, regtype, |
907 | replyDomain); | |
f3c17241 MS |
908 | #else /* HAVE_AVAHI */ |
909 | avahi_service_name_join(fullName, kDNSServiceMaxDomainName, | |
a29fd7dd | 910 | serviceName, regtype, replyDomain); |
f3c17241 MS |
911 | #endif /* HAVE_DNSSD */ |
912 | ||
38e73f87 MS |
913 | free(device->fullName); |
914 | device->fullName = strdup(fullName); | |
915 | } | |
916 | ||
1f0275e3 | 917 | return (device); |
38e73f87 | 918 | } |
7a14d768 | 919 | |
1f0275e3 MS |
920 | /* |
921 | * Yes, add the device... | |
922 | */ | |
7a14d768 | 923 | |
bde350ea MS |
924 | #ifdef HAVE_DNSSD |
925 | DNSServiceConstructFullName(fullName, serviceName, regtype, replyDomain); | |
926 | #else /* HAVE_AVAHI */ | |
927 | avahi_service_name_join(fullName, kDNSServiceMaxDomainName, | |
928 | serviceName, regtype, replyDomain); | |
929 | #endif /* HAVE_DNSSD */ | |
7a14d768 | 930 | |
1f0275e3 MS |
931 | device = calloc(sizeof(cups_device_t), 1); |
932 | device->name = strdup(serviceName); | |
933 | device->domain = strdup(replyDomain); | |
934 | device->type = key.type; | |
935 | device->priority = 50; | |
7a14d768 | 936 | |
1f0275e3 | 937 | cupsArrayAdd(devices, device); |
7a14d768 MS |
938 | |
939 | /* | |
1f0275e3 | 940 | * Set the "full name" of this service, which is used for queries... |
7a14d768 MS |
941 | */ |
942 | ||
f3c17241 | 943 | #ifdef HAVE_DNSSD |
58dc1933 | 944 | DNSServiceConstructFullName(fullName, serviceName, regtype, replyDomain); |
f3c17241 MS |
945 | #else /* HAVE_AVAHI */ |
946 | avahi_service_name_join(fullName, kDNSServiceMaxDomainName, | |
947 | serviceName, regtype, replyDomain); | |
948 | #endif /* HAVE_DNSSD */ | |
949 | ||
7a14d768 MS |
950 | device->fullName = strdup(fullName); |
951 | ||
952 | return (device); | |
953 | } | |
954 | ||
955 | ||
f3c17241 MS |
956 | #ifdef HAVE_AVAHI |
957 | /* | |
958 | * 'poll_callback()' - Wait for input on the specified file descriptors. | |
959 | * | |
960 | * Note: This function is needed because avahi_simple_poll_iterate is broken | |
961 | * and always uses a timeout of 0 (!) milliseconds. | |
962 | * (Avahi Ticket #364) | |
963 | */ | |
964 | ||
965 | static int /* O - Number of file descriptors matching */ | |
966 | poll_callback( | |
967 | struct pollfd *pollfds, /* I - File descriptors */ | |
968 | unsigned int num_pollfds, /* I - Number of file descriptors */ | |
969 | int timeout, /* I - Timeout in milliseconds (unused) */ | |
970 | void *context) /* I - User data (unused) */ | |
971 | { | |
972 | int val; /* Return value */ | |
973 | ||
974 | ||
975 | (void)timeout; | |
976 | (void)context; | |
977 | ||
978 | val = poll(pollfds, num_pollfds, 500); | |
979 | ||
980 | if (val < 0) | |
981 | fprintf(stderr, "DEBUG: poll_callback: %s\n", strerror(errno)); | |
982 | else if (val > 0) | |
983 | got_data = 1; | |
984 | ||
985 | return (val); | |
986 | } | |
987 | #endif /* HAVE_AVAHI */ | |
988 | ||
989 | ||
990 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) | |
991 | # ifdef HAVE_DNSSD | |
7a14d768 MS |
992 | /* |
993 | * 'query_callback()' - Process query data. | |
994 | */ | |
995 | ||
996 | static void | |
997 | query_callback( | |
998 | DNSServiceRef sdRef, /* I - Service reference */ | |
999 | DNSServiceFlags flags, /* I - Data flags */ | |
1000 | uint32_t interfaceIndex, /* I - Interface */ | |
1001 | DNSServiceErrorType errorCode, /* I - Error, if any */ | |
1002 | const char *fullName, /* I - Full service name */ | |
1003 | uint16_t rrtype, /* I - Record type */ | |
1004 | uint16_t rrclass, /* I - Record class */ | |
1005 | uint16_t rdlen, /* I - Length of record data */ | |
1006 | const void *rdata, /* I - Record data */ | |
1007 | uint32_t ttl, /* I - Time-to-live */ | |
f3c17241 | 1008 | void *context) /* I - Device */ |
7a14d768 | 1009 | { |
f3c17241 MS |
1010 | # else |
1011 | /* | |
1012 | * 'query_callback()' - Process query data. | |
1013 | */ | |
7a14d768 | 1014 | |
f3c17241 MS |
1015 | static void |
1016 | query_callback( | |
1017 | AvahiRecordBrowser *browser, /* I - Record browser */ | |
1018 | AvahiIfIndex interfaceIndex, | |
1019 | /* I - Interface index (unused) */ | |
1020 | AvahiProtocol protocol, /* I - Network protocol (unused) */ | |
1021 | AvahiBrowserEvent event, /* I - What happened? */ | |
1022 | const char *fullName, /* I - Service name */ | |
1023 | uint16_t rrclass, /* I - Record class */ | |
1024 | uint16_t rrtype, /* I - Record type */ | |
1025 | const void *rdata, /* I - TXT record */ | |
1026 | size_t rdlen, /* I - Length of TXT record */ | |
1027 | AvahiLookupResultFlags flags, /* I - Flags */ | |
1028 | void *context) /* I - Device */ | |
1029 | { | |
1030 | AvahiClient *client = avahi_record_browser_get_client(browser); | |
1031 | /* Client information */ | |
1032 | # endif /* HAVE_DNSSD */ | |
1033 | char *ptr; /* Pointer into string */ | |
1034 | cups_device_t *device = (cups_device_t *)context; | |
1035 | /* Device */ | |
1036 | const uint8_t *data, /* Pointer into data */ | |
1037 | *datanext, /* Next key/value pair */ | |
1038 | *dataend; /* End of entire TXT record */ | |
1039 | uint8_t datalen; /* Length of current key/value pair */ | |
1040 | char key[256], /* Key string */ | |
1041 | value[256], /* Value string */ | |
1042 | make_and_model[512], /* Manufacturer and model */ | |
1043 | model[256], /* Model */ | |
c1420c87 | 1044 | pdl[256], /* PDL */ |
f3c17241 MS |
1045 | device_id[2048]; /* 1284 device ID */ |
1046 | ||
1047 | ||
1048 | # ifdef HAVE_DNSSD | |
7a14d768 MS |
1049 | fprintf(stderr, "DEBUG2: query_callback(sdRef=%p, flags=%x, " |
1050 | "interfaceIndex=%d, errorCode=%d, fullName=\"%s\", " | |
1051 | "rrtype=%u, rrclass=%u, rdlen=%u, rdata=%p, ttl=%u, " | |
1052 | "context=%p)\n", | |
1053 | sdRef, flags, interfaceIndex, errorCode, | |
1054 | fullName ? fullName : "(null)", rrtype, rrclass, rdlen, rdata, ttl, | |
1055 | context); | |
1056 | ||
1057 | /* | |
1058 | * Only process "add" data... | |
1059 | */ | |
1060 | ||
1061 | if (errorCode != kDNSServiceErr_NoError || !(flags & kDNSServiceFlagsAdd)) | |
1062 | return; | |
1063 | ||
f3c17241 MS |
1064 | # else |
1065 | fprintf(stderr, "DEBUG2: query_callback(browser=%p, interfaceIndex=%d, " | |
1066 | "protocol=%d, event=%d, fullName=\"%s\", rrclass=%u, " | |
1067 | "rrtype=%u, rdata=%p, rdlen=%u, flags=%x, context=%p)\n", | |
1068 | browser, interfaceIndex, protocol, event, | |
1069 | fullName ? fullName : "(null)", rrclass, rrtype, rdata, | |
1070 | (unsigned)rdlen, flags, context); | |
1071 | ||
7a14d768 | 1072 | /* |
f3c17241 | 1073 | * Only process "add" data... |
7a14d768 MS |
1074 | */ |
1075 | ||
f3c17241 MS |
1076 | if (event != AVAHI_BROWSER_NEW) |
1077 | { | |
1078 | if (event == AVAHI_BROWSER_FAILURE) | |
1079 | fprintf(stderr, "ERROR: %s\n", | |
1080 | avahi_strerror(avahi_client_errno(client))); | |
7a14d768 | 1081 | |
f3c17241 MS |
1082 | return; |
1083 | } | |
1084 | # endif /* HAVE_DNSSD */ | |
7a14d768 | 1085 | |
f3c17241 MS |
1086 | /* |
1087 | * Pull out the priority and make and model from the TXT | |
1088 | * record and save it... | |
1089 | */ | |
7a14d768 | 1090 | |
f3c17241 MS |
1091 | device_id[0] = '\0'; |
1092 | make_and_model[0] = '\0'; | |
c1420c87 | 1093 | pdl[0] = '\0'; |
7a14d768 | 1094 | |
5a9febac | 1095 | strlcpy(model, "Unknown", sizeof(model)); |
1f0275e3 | 1096 | |
f3c17241 MS |
1097 | for (data = rdata, dataend = data + rdlen; |
1098 | data < dataend; | |
1099 | data = datanext) | |
7a14d768 | 1100 | { |
f3c17241 MS |
1101 | /* |
1102 | * Read a key/value pair starting with an 8-bit length. Since the | |
1103 | * length is 8 bits and the size of the key/value buffers is 256, we | |
1104 | * don't need to check for overflow... | |
1105 | */ | |
1106 | ||
1107 | datalen = *data++; | |
1108 | ||
1109 | if (!datalen || (data + datalen) > dataend) | |
1f0275e3 | 1110 | break; |
f3c17241 MS |
1111 | |
1112 | datanext = data + datalen; | |
1113 | ||
1114 | for (ptr = key; data < datanext && *data != '='; data ++) | |
7e86f2f6 | 1115 | *ptr++ = (char)*data; |
f3c17241 MS |
1116 | *ptr = '\0'; |
1117 | ||
1118 | if (data < datanext && *data == '=') | |
1f0275e3 | 1119 | { |
f3c17241 | 1120 | data ++; |
7a14d768 | 1121 | |
f3c17241 | 1122 | if (data < datanext) |
07623986 | 1123 | memcpy(value, data, (size_t)(datanext - data)); |
f3c17241 | 1124 | value[datanext - data] = '\0'; |
7a14d768 | 1125 | |
f3c17241 MS |
1126 | fprintf(stderr, "DEBUG2: query_callback: \"%s=%s\".\n", |
1127 | key, value); | |
1128 | } | |
1129 | else | |
1130 | { | |
1131 | fprintf(stderr, "DEBUG2: query_callback: \"%s\" with no value.\n", | |
1132 | key); | |
1133 | continue; | |
1134 | } | |
7a14d768 | 1135 | |
f3c17241 MS |
1136 | if (!_cups_strncasecmp(key, "usb_", 4)) |
1137 | { | |
1138 | /* | |
1139 | * Add USB device ID information... | |
1140 | */ | |
7a14d768 | 1141 | |
f3c17241 | 1142 | ptr = device_id + strlen(device_id); |
7e86f2f6 | 1143 | snprintf(ptr, sizeof(device_id) - (size_t)(ptr - device_id), "%s:%s;", key + 4, value); |
f3c17241 | 1144 | } |
238c3832 | 1145 | |
f3c17241 MS |
1146 | if (!_cups_strcasecmp(key, "usb_MFG") || !_cups_strcasecmp(key, "usb_MANU") || |
1147 | !_cups_strcasecmp(key, "usb_MANUFACTURER")) | |
5a9febac | 1148 | strlcpy(make_and_model, value, sizeof(make_and_model)); |
f3c17241 | 1149 | else if (!_cups_strcasecmp(key, "usb_MDL") || !_cups_strcasecmp(key, "usb_MODEL")) |
5a9febac | 1150 | strlcpy(model, value, sizeof(model)); |
f3c17241 MS |
1151 | else if (!_cups_strcasecmp(key, "product") && !strstr(value, "Ghostscript")) |
1152 | { | |
1153 | if (value[0] == '(') | |
1f0275e3 | 1154 | { |
238c3832 | 1155 | /* |
f3c17241 | 1156 | * Strip parenthesis... |
238c3832 | 1157 | */ |
7a14d768 | 1158 | |
f3c17241 MS |
1159 | if ((ptr = value + strlen(value) - 1) > value && *ptr == ')') |
1160 | *ptr = '\0'; | |
7a14d768 | 1161 | |
5a9febac | 1162 | strlcpy(model, value + 1, sizeof(model)); |
f3c17241 MS |
1163 | } |
1164 | else | |
5a9febac | 1165 | strlcpy(model, value, sizeof(model)); |
f3c17241 MS |
1166 | } |
1167 | else if (!_cups_strcasecmp(key, "ty")) | |
1168 | { | |
5a9febac | 1169 | strlcpy(model, value, sizeof(model)); |
1f0275e3 | 1170 | |
f3c17241 | 1171 | if ((ptr = strchr(model, ',')) != NULL) |
238c3832 | 1172 | *ptr = '\0'; |
f3c17241 | 1173 | } |
c1420c87 MS |
1174 | else if (!_cups_strcasecmp(key, "pdl")) |
1175 | strlcpy(pdl, value, sizeof(pdl)); | |
f3c17241 MS |
1176 | else if (!_cups_strcasecmp(key, "priority")) |
1177 | device->priority = atoi(value); | |
1178 | else if ((device->type == CUPS_DEVICE_IPP || | |
1179 | device->type == CUPS_DEVICE_IPPS || | |
1180 | device->type == CUPS_DEVICE_PRINTER) && | |
1181 | !_cups_strcasecmp(key, "printer-type")) | |
1182 | { | |
1183 | /* | |
1184 | * This is a CUPS printer! | |
1185 | */ | |
238c3832 | 1186 | |
f3c17241 | 1187 | device->cups_shared = 1; |
238c3832 | 1188 | |
f3c17241 MS |
1189 | if (device->type == CUPS_DEVICE_PRINTER) |
1190 | device->sent = 1; | |
1191 | } | |
2c3f5865 MS |
1192 | else if (!_cups_strcasecmp(key, "UUID")) |
1193 | device->uuid = strdup(value); | |
f3c17241 | 1194 | } |
238c3832 | 1195 | |
f3c17241 MS |
1196 | if (device->device_id) |
1197 | free(device->device_id); | |
238c3832 | 1198 | |
f3c17241 MS |
1199 | if (!device_id[0] && strcmp(model, "Unknown")) |
1200 | { | |
1201 | if (make_and_model[0]) | |
1202 | snprintf(device_id, sizeof(device_id), "MFG:%s;MDL:%s;", | |
1203 | make_and_model, model); | |
1204 | else if (!_cups_strncasecmp(model, "designjet ", 10)) | |
1205 | snprintf(device_id, sizeof(device_id), "MFG:HP;MDL:%s", model + 10); | |
1206 | else if (!_cups_strncasecmp(model, "stylus ", 7)) | |
1207 | snprintf(device_id, sizeof(device_id), "MFG:EPSON;MDL:%s", model + 7); | |
1208 | else if ((ptr = strchr(model, ' ')) != NULL) | |
1209 | { | |
1210 | /* | |
1211 | * Assume the first word is the make... | |
1212 | */ | |
238c3832 | 1213 | |
07623986 | 1214 | memcpy(make_and_model, model, (size_t)(ptr - model)); |
f3c17241 | 1215 | make_and_model[ptr - model] = '\0'; |
238c3832 | 1216 | |
f3c17241 MS |
1217 | snprintf(device_id, sizeof(device_id), "MFG:%s;MDL:%s", |
1218 | make_and_model, ptr + 1); | |
1219 | } | |
1220 | } | |
238c3832 | 1221 | |
c1420c87 MS |
1222 | if (device_id[0] && |
1223 | !strstr(device_id, "CMD:") && | |
1224 | !strstr(device_id, "COMMAND SET:") && | |
1225 | (strstr(pdl, "application/pdf") || | |
1226 | strstr(pdl, "application/postscript") || | |
1227 | strstr(pdl, "application/vnd.hp-PCL") || | |
1228 | strstr(pdl, "image/"))) | |
1229 | { | |
1230 | value[0] = '\0'; | |
1231 | if (strstr(pdl, "application/pdf")) | |
1232 | strlcat(value, ",PDF", sizeof(value)); | |
1233 | if (strstr(pdl, "application/postscript")) | |
1234 | strlcat(value, ",PS", sizeof(value)); | |
1235 | if (strstr(pdl, "application/vnd.hp-PCL")) | |
1236 | strlcat(value, ",PCL", sizeof(value)); | |
1237 | for (ptr = strstr(pdl, "image/"); ptr; ptr = strstr(ptr, "image/")) | |
1238 | { | |
1239 | char *valptr = value + strlen(value); | |
1240 | /* Pointer into value */ | |
1241 | ||
1242 | if (valptr < (value + sizeof(value) - 1)) | |
1243 | *valptr++ = ','; | |
1244 | ||
1245 | ptr += 6; | |
1246 | while (isalnum(*ptr & 255) || *ptr == '-' || *ptr == '.') | |
1247 | { | |
1248 | if (isalnum(*ptr & 255) && valptr < (value + sizeof(value) - 1)) | |
7e86f2f6 | 1249 | *valptr++ = (char)toupper(*ptr++ & 255); |
c1420c87 MS |
1250 | else |
1251 | break; | |
1252 | } | |
1253 | ||
1254 | *valptr = '\0'; | |
1255 | } | |
1256 | ||
1257 | ptr = device_id + strlen(device_id); | |
7e86f2f6 | 1258 | snprintf(ptr, sizeof(device_id) - (size_t)(ptr - device_id), "CMD:%s;", value + 1); |
c1420c87 MS |
1259 | } |
1260 | ||
f3c17241 MS |
1261 | if (device_id[0]) |
1262 | device->device_id = strdup(device_id); | |
1263 | else | |
1264 | device->device_id = NULL; | |
7a14d768 | 1265 | |
f3c17241 MS |
1266 | if (device->make_and_model) |
1267 | free(device->make_and_model); | |
7a14d768 | 1268 | |
f3c17241 MS |
1269 | if (make_and_model[0]) |
1270 | { | |
1271 | strlcat(make_and_model, " ", sizeof(make_and_model)); | |
1272 | strlcat(make_and_model, model, sizeof(make_and_model)); | |
238c3832 | 1273 | |
f3c17241 | 1274 | device->make_and_model = strdup(make_and_model); |
7a14d768 | 1275 | } |
f3c17241 MS |
1276 | else |
1277 | device->make_and_model = strdup(model); | |
7a14d768 | 1278 | } |
f3c17241 | 1279 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
7a14d768 MS |
1280 | |
1281 | ||
38e73f87 | 1282 | /* |
f3c17241 | 1283 | * 'sigterm_handler()' - Handle termination signals. |
38e73f87 MS |
1284 | */ |
1285 | ||
1286 | static void | |
1287 | sigterm_handler(int sig) /* I - Signal number (unused) */ | |
1288 | { | |
321d8d57 MS |
1289 | (void)sig; |
1290 | ||
e07d4801 MS |
1291 | if (job_canceled) |
1292 | exit(CUPS_BACKEND_OK); | |
1293 | else | |
1294 | job_canceled = 1; | |
38e73f87 MS |
1295 | } |
1296 | ||
1297 | ||
7a14d768 MS |
1298 | /* |
1299 | * 'unquote()' - Unquote a name string. | |
1300 | */ | |
1301 | ||
1302 | static void | |
1303 | unquote(char *dst, /* I - Destination buffer */ | |
1304 | const char *src, /* I - Source string */ | |
1305 | size_t dstsize) /* I - Size of destination buffer */ | |
1306 | { | |
1307 | char *dstend = dst + dstsize - 1; /* End of destination buffer */ | |
1308 | ||
1309 | ||
1310 | while (*src && dst < dstend) | |
1311 | { | |
1312 | if (*src == '\\') | |
1313 | { | |
1314 | src ++; | |
1315 | if (isdigit(src[0] & 255) && isdigit(src[1] & 255) && | |
1316 | isdigit(src[2] & 255)) | |
1317 | { | |
1318 | *dst++ = ((((src[0] - '0') * 10) + src[1] - '0') * 10) + src[2] - '0'; | |
1319 | src += 3; | |
1320 | } | |
1321 | else | |
1322 | *dst++ = *src++; | |
1323 | } | |
1324 | else | |
1325 | *dst++ = *src ++; | |
1326 | } | |
1327 | ||
1328 | *dst = '\0'; | |
1329 | } | |
1330 | ||
1331 | ||
1332 | /* | |
1333 | * End of "$Id$". | |
1334 | */ |