]>
Commit | Line | Data |
---|---|---|
e92958ad | 1 | /* |
c9d3f842 | 2 | * "$Id$" |
e92958ad | 3 | * |
3d94661a | 4 | * HTTP address routines for CUPS. |
e92958ad | 5 | * |
c45401bb | 6 | * Copyright 2007-2012 by Apple Inc. |
7fbf7fc4 | 7 | * Copyright 1997-2006 by Easy Software Products, all rights reserved. |
e92958ad | 8 | * |
9 | * These coded instructions, statements, and computer programs are the | |
4e8d321f | 10 | * property of Apple Inc. and are protected by Federal copyright |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * which should have been included with this file. If this file is | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
e92958ad | 14 | * |
15 | * Contents: | |
16 | * | |
2d3aac27 | 17 | * httpAddrAny() - Check for the "any" address. |
18 | * httpAddrEqual() - Compare two addresses. | |
19 | * httpAddrLength() - Return the length of the address in bytes. | |
20 | * httpAddrListen() - Create a listening socket bound to the specified | |
21 | * address and port. | |
e92958ad | 22 | * httpAddrLocalhost() - Check for the local loopback address. |
2d3aac27 | 23 | * httpAddrLookup() - Lookup the hostname associated with the address. |
24 | * httpAddrPort() - Get the port number associated with an address. | |
f0aa54a1 | 25 | * _httpAddrSetPort() - Set the port number associated with an address. |
2d3aac27 | 26 | * httpAddrString() - Convert an address to a numeric string. |
27 | * httpGetHostByName() - Lookup a hostname or IPv4 address, and return | |
28 | * address records for the specified name. | |
29 | * httpGetHostname() - Get the FQDN for the connection or local system. | |
e92958ad | 30 | */ |
31 | ||
32 | /* | |
33 | * Include necessary headers... | |
34 | */ | |
35 | ||
3d94661a | 36 | #include "cups-private.h" |
36b81b47 | 37 | #ifdef HAVE_RESOLV_H |
38 | # include <resolv.h> | |
39 | #endif /* HAVE_RESOLV_H */ | |
4f131de2 | 40 | #ifdef __APPLE__ |
d60acc51 | 41 | # include <CoreFoundation/CoreFoundation.h> |
d60acc51 | 42 | # include <SystemConfiguration/SystemConfiguration.h> |
4f131de2 | 43 | #endif /* __APPLE__ */ |
e92958ad | 44 | |
45 | ||
0f71c41e | 46 | /* |
47 | * 'httpAddrAny()' - Check for the "any" address. | |
086c584d | 48 | * |
c45401bb | 49 | * @since CUPS 1.2/OS X 10.5@ |
0f71c41e | 50 | */ |
51 | ||
52 | int /* O - 1 if "any", 0 otherwise */ | |
53 | httpAddrAny(const http_addr_t *addr) /* I - Address to check */ | |
54 | { | |
e699e7b0 | 55 | if (!addr) |
56 | return (0); | |
57 | ||
0f71c41e | 58 | #ifdef AF_INET6 |
59 | if (addr->addr.sa_family == AF_INET6 && | |
60 | IN6_IS_ADDR_UNSPECIFIED(&(addr->ipv6.sin6_addr))) | |
61 | return (1); | |
62 | #endif /* AF_INET6 */ | |
63 | ||
64 | if (addr->addr.sa_family == AF_INET && | |
65 | ntohl(addr->ipv4.sin_addr.s_addr) == 0x00000000) | |
66 | return (1); | |
67 | ||
68 | return (0); | |
69 | } | |
70 | ||
71 | ||
e92958ad | 72 | /* |
73 | * 'httpAddrEqual()' - Compare two addresses. | |
086c584d | 74 | * |
c45401bb | 75 | * @since CUPS 1.2/OS X 10.5@ |
e92958ad | 76 | */ |
77 | ||
7fbf7fc4 | 78 | int /* O - 1 if equal, 0 if not */ |
e92958ad | 79 | httpAddrEqual(const http_addr_t *addr1, /* I - First address */ |
80 | const http_addr_t *addr2) /* I - Second address */ | |
81 | { | |
e699e7b0 | 82 | if (!addr1 && !addr2) |
83 | return (1); | |
84 | ||
85 | if (!addr1 || !addr2) | |
86 | return (0); | |
87 | ||
e92958ad | 88 | if (addr1->addr.sa_family != addr2->addr.sa_family) |
89 | return (0); | |
90 | ||
928c0377 | 91 | #ifdef AF_LOCAL |
92 | if (addr1->addr.sa_family == AF_LOCAL) | |
93 | return (!strcmp(addr1->un.sun_path, addr2->un.sun_path)); | |
94 | #endif /* AF_LOCAL */ | |
95 | ||
e92958ad | 96 | #ifdef AF_INET6 |
97 | if (addr1->addr.sa_family == AF_INET6) | |
2ccffa6a | 98 | return (!memcmp(&(addr1->ipv6.sin6_addr), &(addr2->ipv6.sin6_addr), 16)); |
e92958ad | 99 | #endif /* AF_INET6 */ |
100 | ||
101 | return (addr1->ipv4.sin_addr.s_addr == addr2->ipv4.sin_addr.s_addr); | |
102 | } | |
103 | ||
104 | ||
a36f3f3d | 105 | /* |
106 | * 'httpAddrLength()' - Return the length of the address in bytes. | |
086c584d | 107 | * |
c45401bb | 108 | * @since CUPS 1.2/OS X 10.5@ |
a36f3f3d | 109 | */ |
110 | ||
111 | int /* O - Length in bytes */ | |
112 | httpAddrLength(const http_addr_t *addr) /* I - Address */ | |
113 | { | |
e699e7b0 | 114 | if (!addr) |
115 | return (0); | |
116 | ||
a36f3f3d | 117 | #ifdef AF_INET6 |
118 | if (addr->addr.sa_family == AF_INET6) | |
119 | return (sizeof(addr->ipv6)); | |
120 | else | |
121 | #endif /* AF_INET6 */ | |
122 | #ifdef AF_LOCAL | |
123 | if (addr->addr.sa_family == AF_LOCAL) | |
c94f4aa9 | 124 | return (offsetof(struct sockaddr_un, sun_path) + |
125 | strlen(addr->un.sun_path) + 1); | |
a36f3f3d | 126 | else |
127 | #endif /* AF_LOCAL */ | |
128 | if (addr->addr.sa_family == AF_INET) | |
129 | return (sizeof(addr->ipv4)); | |
130 | else | |
131 | return (0); | |
132 | ||
133 | } | |
134 | ||
135 | ||
2d3aac27 | 136 | /* |
137 | * 'httpAddrListen()' - Create a listening socket bound to the specified | |
138 | * address and port. | |
139 | * | |
140 | * @since CUPS 1.7@ | |
141 | */ | |
142 | ||
143 | int /* O - Socket or -1 on error */ | |
144 | httpAddrListen(http_addr_t *addr, /* I - Address to bind to */ | |
145 | int port) /* I - Port number to bind to */ | |
146 | { | |
68d05bd3 | 147 | int fd = -1, /* Socket */ |
148 | val; /* Socket value */ | |
149 | ||
150 | ||
e35b1e23 | 151 | /* |
152 | * Range check input... | |
153 | */ | |
154 | ||
155 | if (!addr || port <= 0) | |
156 | return (-1); | |
157 | ||
158 | if ((fd = socket(addr->addr.sa_family, SOCK_STREAM, 0)) < 0) | |
159 | { | |
160 | _cupsSetHTTPError(HTTP_STATUS_ERROR); | |
161 | return (-1); | |
162 | } | |
163 | ||
164 | val = 1; | |
165 | setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val)); | |
166 | ||
167 | #ifdef IPV6_V6ONLY | |
168 | if (addr->addr.sa_family == AF_INET6) | |
169 | setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &val, sizeof(val)); | |
170 | #endif /* IPV6_V6ONLY */ | |
171 | ||
172 | _httpAddrSetPort(addr, port); | |
173 | ||
174 | if (bind(fd, (struct sockaddr *)addr, httpAddrLength(addr))) | |
175 | { | |
176 | _cupsSetHTTPError(HTTP_STATUS_ERROR); | |
177 | ||
178 | close(fd); | |
179 | ||
180 | return (-1); | |
181 | } | |
182 | ||
183 | if (listen(fd, 5)) | |
184 | { | |
185 | _cupsSetHTTPError(HTTP_STATUS_ERROR); | |
186 | ||
187 | close(fd); | |
188 | ||
189 | return (-1); | |
190 | } | |
2d3aac27 | 191 | |
68d05bd3 | 192 | #ifdef SO_NOSIGPIPE |
193 | /* | |
194 | * Disable SIGPIPE for this socket. | |
195 | */ | |
196 | ||
197 | val = 1; | |
198 | setsockopt(fd, SOL_SOCKET, SO_NOSIGPIPE, &val, sizeof(val)); | |
199 | #endif /* SO_NOSIGPIPE */ | |
200 | ||
201 | return (fd); | |
2d3aac27 | 202 | } |
203 | ||
204 | ||
e92958ad | 205 | /* |
206 | * 'httpAddrLocalhost()' - Check for the local loopback address. | |
086c584d | 207 | * |
c45401bb | 208 | * @since CUPS 1.2/OS X 10.5@ |
e92958ad | 209 | */ |
210 | ||
0f71c41e | 211 | int /* O - 1 if local host, 0 otherwise */ |
086c584d | 212 | httpAddrLocalhost( |
213 | const http_addr_t *addr) /* I - Address to check */ | |
e92958ad | 214 | { |
e699e7b0 | 215 | if (!addr) |
216 | return (1); | |
217 | ||
e92958ad | 218 | #ifdef AF_INET6 |
219 | if (addr->addr.sa_family == AF_INET6 && | |
1879529a | 220 | IN6_IS_ADDR_LOOPBACK(&(addr->ipv6.sin6_addr))) |
e92958ad | 221 | return (1); |
222 | #endif /* AF_INET6 */ | |
223 | ||
8eba4f2f | 224 | #ifdef AF_LOCAL |
c6075312 | 225 | if (addr->addr.sa_family == AF_LOCAL) |
226 | return (1); | |
8eba4f2f | 227 | #endif /* AF_LOCAL */ |
c6075312 | 228 | |
e92958ad | 229 | if (addr->addr.sa_family == AF_INET && |
96f8a53a | 230 | (ntohl(addr->ipv4.sin_addr.s_addr) & 0xff000000) == 0x7f000000) |
e92958ad | 231 | return (1); |
232 | ||
233 | return (0); | |
234 | } | |
235 | ||
236 | ||
e92958ad | 237 | /* |
238 | * 'httpAddrLookup()' - Lookup the hostname associated with the address. | |
086c584d | 239 | * |
c45401bb | 240 | * @since CUPS 1.2/OS X 10.5@ |
e92958ad | 241 | */ |
242 | ||
7fbf7fc4 | 243 | char * /* O - Host name */ |
244 | httpAddrLookup( | |
245 | const http_addr_t *addr, /* I - Address to lookup */ | |
246 | char *name, /* I - Host name buffer */ | |
247 | int namelen) /* I - Size of name buffer */ | |
e92958ad | 248 | { |
36b81b47 | 249 | _cups_globals_t *cg = _cupsGlobals(); |
250 | /* Global data */ | |
251 | ||
252 | ||
571af0ea | 253 | DEBUG_printf(("httpAddrLookup(addr=%p, name=%p, namelen=%d)", addr, name, |
254 | namelen)); | |
8eba4f2f | 255 | |
c94f4aa9 | 256 | /* |
257 | * Range check input... | |
258 | */ | |
259 | ||
260 | if (!addr || !name || namelen <= 2) | |
261 | { | |
262 | if (name && namelen >= 1) | |
263 | *name = '\0'; | |
264 | ||
265 | return (NULL); | |
266 | } | |
267 | ||
1fcc120e | 268 | #ifdef AF_LOCAL |
269 | if (addr->addr.sa_family == AF_LOCAL) | |
36b81b47 | 270 | { |
1fcc120e | 271 | strlcpy(name, addr->un.sun_path, namelen); |
36b81b47 | 272 | return (name); |
273 | } | |
1fcc120e | 274 | #endif /* AF_LOCAL */ |
36b81b47 | 275 | |
da94e03d | 276 | /* |
277 | * Optimize lookups for localhost/loopback addresses... | |
278 | */ | |
279 | ||
280 | if (httpAddrLocalhost(addr)) | |
281 | { | |
282 | strlcpy(name, "localhost", namelen); | |
283 | return (name); | |
284 | } | |
285 | ||
36b81b47 | 286 | #ifdef HAVE_RES_INIT |
287 | /* | |
288 | * STR #2920: Initialize resolver after failure in cups-polld | |
289 | * | |
290 | * If the previous lookup failed, re-initialize the resolver to prevent | |
291 | * temporary network errors from persisting. This *should* be handled by | |
292 | * the resolver libraries, but apparently the glibc folks do not agree. | |
293 | * | |
294 | * We set a flag at the end of this function if we encounter an error that | |
295 | * requires reinitialization of the resolver functions. We then call | |
296 | * res_init() if the flag is set on the next call here or in httpAddrLookup(). | |
297 | */ | |
298 | ||
299 | if (cg->need_res_init) | |
300 | { | |
301 | res_init(); | |
302 | ||
303 | cg->need_res_init = 0; | |
304 | } | |
305 | #endif /* HAVE_RES_INIT */ | |
306 | ||
c94f4aa9 | 307 | #ifdef HAVE_GETNAMEINFO |
e92958ad | 308 | { |
c65b193c | 309 | /* |
310 | * STR #2486: httpAddrLookup() fails when getnameinfo() returns EAI_AGAIN | |
311 | * | |
312 | * FWIW, I think this is really a bug in the implementation of | |
313 | * getnameinfo(), but falling back on httpAddrString() is easy to | |
314 | * do... | |
315 | */ | |
c94f4aa9 | 316 | |
36b81b47 | 317 | int error = getnameinfo(&addr->addr, httpAddrLength(addr), name, namelen, |
318 | NULL, 0, 0); | |
319 | ||
320 | if (error) | |
321 | { | |
322 | if (error == EAI_FAIL) | |
323 | cg->need_res_init = 1; | |
324 | ||
c65b193c | 325 | return (httpAddrString(addr, name, namelen)); |
36b81b47 | 326 | } |
e92958ad | 327 | } |
c94f4aa9 | 328 | #else |
329 | { | |
330 | struct hostent *host; /* Host from name service */ | |
331 | ||
e92958ad | 332 | |
c94f4aa9 | 333 | # ifdef AF_INET6 |
334 | if (addr->addr.sa_family == AF_INET6) | |
bb2fc480 | 335 | host = gethostbyaddr((char *)&(addr->ipv6.sin6_addr), |
c94f4aa9 | 336 | sizeof(struct in_addr), AF_INET6); |
337 | else | |
338 | # endif /* AF_INET6 */ | |
bb2fc480 | 339 | host = gethostbyaddr((char *)&(addr->ipv4.sin_addr), |
c94f4aa9 | 340 | sizeof(struct in_addr), AF_INET); |
341 | ||
342 | if (host == NULL) | |
343 | { | |
344 | /* | |
345 | * No hostname, so return the raw address... | |
346 | */ | |
347 | ||
36b81b47 | 348 | if (h_errno == NO_RECOVERY) |
349 | cg->need_res_init = 1; | |
350 | ||
351 | return (httpAddrString(addr, name, namelen)); | |
c94f4aa9 | 352 | } |
353 | ||
354 | strlcpy(name, host->h_name, namelen); | |
355 | } | |
356 | #endif /* HAVE_GETNAMEINFO */ | |
e92958ad | 357 | |
571af0ea | 358 | DEBUG_printf(("1httpAddrLookup: returning \"%s\"...", name)); |
359 | ||
e92958ad | 360 | return (name); |
361 | } | |
362 | ||
363 | ||
bb235d9a | 364 | /* |
2d3aac27 | 365 | * 'httpAddrPort()' - Get the port number associated with an address. |
366 | * | |
367 | * @since CUPS 1.7@ | |
bb235d9a | 368 | */ |
369 | ||
370 | int /* O - Port number */ | |
2d3aac27 | 371 | httpAddrPort(http_addr_t *addr) /* I - Address */ |
bb235d9a | 372 | { |
eb1af811 | 373 | if (!addr) |
374 | return (ippPort()); | |
bb235d9a | 375 | #ifdef AF_INET6 |
eb1af811 | 376 | else if (addr->addr.sa_family == AF_INET6) |
bb235d9a | 377 | return (ntohs(addr->ipv6.sin6_port)); |
bb235d9a | 378 | #endif /* AF_INET6 */ |
eb1af811 | 379 | else if (addr->addr.sa_family == AF_INET) |
bb235d9a | 380 | return (ntohs(addr->ipv4.sin_port)); |
381 | else | |
382 | return (ippPort()); | |
383 | } | |
384 | ||
385 | ||
f0aa54a1 | 386 | /* |
387 | * '_httpAddrSetPort()' - Set the port number associated with an address. | |
388 | */ | |
389 | ||
390 | void | |
391 | _httpAddrSetPort(http_addr_t *addr, /* I - Address */ | |
392 | int port) /* I - Port */ | |
393 | { | |
394 | if (!addr || port <= 0) | |
395 | return; | |
396 | ||
397 | #ifdef AF_INET6 | |
398 | if (addr->addr.sa_family == AF_INET6) | |
399 | addr->ipv6.sin6_port = htons(port); | |
400 | else | |
401 | #endif /* AF_INET6 */ | |
402 | if (addr->addr.sa_family == AF_INET) | |
403 | addr->ipv4.sin_port = htons(port); | |
404 | } | |
405 | ||
406 | ||
e92958ad | 407 | /* |
7fbf7fc4 | 408 | * 'httpAddrString()' - Convert an address to a numeric string. |
086c584d | 409 | * |
c45401bb | 410 | * @since CUPS 1.2/OS X 10.5@ |
e92958ad | 411 | */ |
412 | ||
7fbf7fc4 | 413 | char * /* O - Numeric address string */ |
414 | httpAddrString(const http_addr_t *addr, /* I - Address to convert */ | |
415 | char *s, /* I - String buffer */ | |
416 | int slen) /* I - Length of string */ | |
e92958ad | 417 | { |
571af0ea | 418 | DEBUG_printf(("httpAddrString(addr=%p, s=%p, slen=%d)", addr, s, slen)); |
8eba4f2f | 419 | |
c94f4aa9 | 420 | /* |
421 | * Range check input... | |
422 | */ | |
423 | ||
424 | if (!addr || !s || slen <= 2) | |
425 | { | |
426 | if (s && slen >= 1) | |
427 | *s = '\0'; | |
428 | ||
429 | return (NULL); | |
430 | } | |
431 | ||
c6075312 | 432 | #ifdef AF_LOCAL |
433 | if (addr->addr.sa_family == AF_LOCAL) | |
50441edb | 434 | { |
435 | if (addr->un.sun_path[0] == '/') | |
436 | strlcpy(s, addr->un.sun_path, slen); | |
437 | else | |
438 | strlcpy(s, "localhost", slen); | |
439 | } | |
c6075312 | 440 | else |
441 | #endif /* AF_LOCAL */ | |
680610ca | 442 | if (addr->addr.sa_family == AF_INET) |
e92958ad | 443 | { |
680610ca | 444 | unsigned temp; /* Temporary address */ |
e92958ad | 445 | |
446 | ||
680610ca | 447 | temp = ntohl(addr->ipv4.sin_addr.s_addr); |
448 | ||
449 | snprintf(s, slen, "%d.%d.%d.%d", (temp >> 24) & 255, | |
450 | (temp >> 16) & 255, (temp >> 8) & 255, temp & 255); | |
451 | } | |
452 | #ifdef AF_INET6 | |
453 | else if (addr->addr.sa_family == AF_INET6) | |
454 | { | |
9d4cf357 | 455 | char *sptr, /* Pointer into string */ |
456 | temps[64]; /* Temporary string for address */ | |
457 | ||
680610ca | 458 | # ifdef HAVE_GETNAMEINFO |
9d4cf357 | 459 | if (getnameinfo(&addr->addr, httpAddrLength(addr), temps, sizeof(temps), |
680610ca | 460 | NULL, 0, NI_NUMERICHOST)) |
c94f4aa9 | 461 | { |
462 | /* | |
463 | * If we get an error back, then the address type is not supported | |
464 | * and we should zero out the buffer... | |
465 | */ | |
e92958ad | 466 | |
c94f4aa9 | 467 | s[0] = '\0'; |
468 | ||
469 | return (NULL); | |
470 | } | |
9d4cf357 | 471 | else if ((sptr = strchr(temps, '%')) != NULL) |
472 | { | |
473 | /* | |
474 | * Convert "%zone" to "+zone" to match URI form... | |
475 | */ | |
476 | ||
477 | *sptr = '+'; | |
478 | } | |
479 | ||
680610ca | 480 | # else |
680610ca | 481 | int i; /* Looping var */ |
482 | unsigned temp; /* Current value */ | |
483 | const char *prefix; /* Prefix for address */ | |
484 | ||
485 | ||
486 | prefix = ""; | |
9d4cf357 | 487 | for (sptr = temps, i = 0; i < 4 && addr->ipv6.sin6_addr.s6_addr32[i]; i ++) |
c94f4aa9 | 488 | { |
680610ca | 489 | temp = ntohl(addr->ipv6.sin6_addr.s6_addr32[i]); |
c94f4aa9 | 490 | |
9d4cf357 | 491 | snprintf(sptr, sizeof(temps) - (sptr - temps), "%s%x", prefix, |
492 | (temp >> 16) & 0xffff); | |
680610ca | 493 | prefix = ":"; |
680610ca | 494 | sptr += strlen(sptr); |
c94f4aa9 | 495 | |
680610ca | 496 | temp &= 0xffff; |
c94f4aa9 | 497 | |
680610ca | 498 | if (temp || i == 3 || addr->ipv6.sin6_addr.s6_addr32[i + 1]) |
499 | { | |
9d4cf357 | 500 | snprintf(sptr, sizeof(temps) - (sptr - temps), "%s%x", prefix, temp); |
c94f4aa9 | 501 | sptr += strlen(sptr); |
c94f4aa9 | 502 | } |
680610ca | 503 | } |
504 | ||
505 | if (i < 4) | |
506 | { | |
507 | while (i < 4 && !addr->ipv6.sin6_addr.s6_addr32[i]) | |
508 | i ++; | |
c94f4aa9 | 509 | |
510 | if (i < 4) | |
511 | { | |
9d4cf357 | 512 | snprintf(sptr, sizeof(temps) - (sptr - temps), "%s:", prefix); |
680610ca | 513 | prefix = ":"; |
680610ca | 514 | sptr += strlen(sptr); |
c94f4aa9 | 515 | |
680610ca | 516 | for (; i < 4; i ++) |
c94f4aa9 | 517 | { |
680610ca | 518 | temp = ntohl(addr->ipv6.sin6_addr.s6_addr32[i]); |
c94f4aa9 | 519 | |
9d4cf357 | 520 | if ((temp & 0xffff0000) || |
521 | (i > 0 && addr->ipv6.sin6_addr.s6_addr32[i - 1])) | |
c94f4aa9 | 522 | { |
9d4cf357 | 523 | snprintf(sptr, sizeof(temps) - (sptr - temps), "%s%x", prefix, |
524 | (temp >> 16) & 0xffff); | |
c94f4aa9 | 525 | sptr += strlen(sptr); |
680610ca | 526 | } |
c94f4aa9 | 527 | |
9d4cf357 | 528 | snprintf(sptr, sizeof(temps) - (sptr - temps), "%s%x", prefix, |
529 | temp & 0xffff); | |
680610ca | 530 | sptr += strlen(sptr); |
c94f4aa9 | 531 | } |
532 | } | |
680610ca | 533 | else if (sptr == s) |
534 | { | |
535 | /* | |
536 | * Empty address... | |
537 | */ | |
c94f4aa9 | 538 | |
9d4cf357 | 539 | strlcpy(temps, "::", sizeof(temps)); |
680610ca | 540 | } |
541 | else | |
542 | { | |
543 | /* | |
544 | * Empty at end... | |
545 | */ | |
c94f4aa9 | 546 | |
9d4cf357 | 547 | strlcpy(sptr, "::", sizeof(temps) - (sptr - temps)); |
680610ca | 548 | } |
c94f4aa9 | 549 | } |
680610ca | 550 | # endif /* HAVE_GETNAMEINFO */ |
9d4cf357 | 551 | |
552 | /* | |
553 | * Add "[v1." and "]" around IPv6 address to convert to URI form. | |
554 | */ | |
555 | ||
556 | snprintf(s, slen, "[v1.%s]", temps); | |
c94f4aa9 | 557 | } |
680610ca | 558 | #endif /* AF_INET6 */ |
559 | else | |
560 | strlcpy(s, "UNKNOWN", slen); | |
e92958ad | 561 | |
571af0ea | 562 | DEBUG_printf(("1httpAddrString: returning \"%s\"...", s)); |
8eba4f2f | 563 | |
e92958ad | 564 | return (s); |
565 | } | |
566 | ||
567 | ||
568 | /* | |
086c584d | 569 | * 'httpGetHostByName()' - Lookup a hostname or IPv4 address, and return |
365cfbcc | 570 | * address records for the specified name. |
086c584d | 571 | * |
572 | * @deprecated@ | |
365cfbcc | 573 | */ |
574 | ||
575 | struct hostent * /* O - Host entry */ | |
576 | httpGetHostByName(const char *name) /* I - Hostname or IP address */ | |
577 | { | |
578 | const char *nameptr; /* Pointer into name */ | |
579 | unsigned ip[4]; /* IP address components */ | |
2625096f | 580 | _cups_globals_t *cg = _cupsGlobals(); |
03f61bf3 | 581 | /* Pointer to library globals */ |
365cfbcc | 582 | |
6db7190f | 583 | |
571af0ea | 584 | DEBUG_printf(("httpGetHostByName(name=\"%s\")", name)); |
8eba4f2f | 585 | |
03f61bf3 | 586 | /* |
587 | * Avoid lookup delays and configuration problems when connecting | |
588 | * to the localhost address... | |
589 | */ | |
590 | ||
7c298ddc | 591 | if (!strcmp(name, "localhost")) |
03f61bf3 | 592 | name = "127.0.0.1"; |
365cfbcc | 593 | |
594 | /* | |
595 | * This function is needed because some operating systems have a | |
596 | * buggy implementation of gethostbyname() that does not support | |
597 | * IP addresses. If the first character of the name string is a | |
598 | * number, then sscanf() is used to extract the IP components. | |
599 | * We then pack the components into an IPv4 address manually, | |
600 | * since the inet_aton() function is deprecated. We use the | |
601 | * htonl() macro to get the right byte order for the address. | |
1fcc120e | 602 | * |
603 | * We also support domain sockets when supported by the underlying | |
604 | * OS... | |
365cfbcc | 605 | */ |
606 | ||
1fcc120e | 607 | #ifdef AF_LOCAL |
608 | if (name[0] == '/') | |
609 | { | |
610 | /* | |
611 | * A domain socket address, so make an AF_LOCAL entry and return it... | |
612 | */ | |
613 | ||
03f61bf3 | 614 | cg->hostent.h_name = (char *)name; |
615 | cg->hostent.h_aliases = NULL; | |
616 | cg->hostent.h_addrtype = AF_LOCAL; | |
617 | cg->hostent.h_length = strlen(name) + 1; | |
618 | cg->hostent.h_addr_list = cg->ip_ptrs; | |
619 | cg->ip_ptrs[0] = (char *)name; | |
620 | cg->ip_ptrs[1] = NULL; | |
1fcc120e | 621 | |
571af0ea | 622 | DEBUG_puts("1httpGetHostByName: returning domain socket address..."); |
8eba4f2f | 623 | |
03f61bf3 | 624 | return (&cg->hostent); |
1fcc120e | 625 | } |
626 | #endif /* AF_LOCAL */ | |
627 | ||
64bbab09 | 628 | for (nameptr = name; isdigit(*nameptr & 255) || *nameptr == '.'; nameptr ++); |
365cfbcc | 629 | |
630 | if (!*nameptr) | |
631 | { | |
632 | /* | |
7c298ddc | 633 | * We have an IPv4 address; break it up and provide the host entry |
634 | * to the caller. | |
365cfbcc | 635 | */ |
636 | ||
637 | if (sscanf(name, "%u.%u.%u.%u", ip, ip + 1, ip + 2, ip + 3) != 4) | |
c5b73e9f | 638 | return (NULL); /* Must have 4 numbers */ |
639 | ||
640 | if (ip[0] > 255 || ip[1] > 255 || ip[2] > 255 || ip[3] > 255) | |
641 | return (NULL); /* Invalid byte ranges! */ | |
365cfbcc | 642 | |
086c584d | 643 | cg->ip_addr = htonl(((((((ip[0] << 8) | ip[1]) << 8) | ip[2]) << 8) | |
644 | ip[3])); | |
365cfbcc | 645 | |
646 | /* | |
647 | * Fill in the host entry and return it... | |
648 | */ | |
649 | ||
03f61bf3 | 650 | cg->hostent.h_name = (char *)name; |
651 | cg->hostent.h_aliases = NULL; | |
652 | cg->hostent.h_addrtype = AF_INET; | |
653 | cg->hostent.h_length = 4; | |
654 | cg->hostent.h_addr_list = cg->ip_ptrs; | |
086c584d | 655 | cg->ip_ptrs[0] = (char *)&(cg->ip_addr); |
656 | cg->ip_ptrs[1] = NULL; | |
365cfbcc | 657 | |
571af0ea | 658 | DEBUG_puts("1httpGetHostByName: returning IPv4 address..."); |
8eba4f2f | 659 | |
03f61bf3 | 660 | return (&cg->hostent); |
365cfbcc | 661 | } |
662 | else | |
7c298ddc | 663 | { |
664 | /* | |
086c584d | 665 | * Use the gethostbyname() function to get the IPv4 address for |
365cfbcc | 666 | * the name... |
667 | */ | |
668 | ||
571af0ea | 669 | DEBUG_puts("1httpGetHostByName: returning domain lookup address(es)..."); |
8eba4f2f | 670 | |
365cfbcc | 671 | return (gethostbyname(name)); |
672 | } | |
673 | } | |
674 | ||
675 | ||
0a283777 | 676 | /* |
7701ffe8 | 677 | * 'httpGetHostname()' - Get the FQDN for the connection or local system. |
0a283777 | 678 | * |
7701ffe8 | 679 | * When "http" points to a connected socket, return the hostname or |
680 | * address that was used in the call to httpConnect() or httpConnectEncrypt(). | |
681 | * Otherwise, return the FQDN for the local system using both gethostname() | |
682 | * and gethostbyname() to get the local hostname with domain. | |
086c584d | 683 | * |
c45401bb | 684 | * @since CUPS 1.2/OS X 10.5@ |
0a283777 | 685 | */ |
686 | ||
7701ffe8 | 687 | const char * /* O - FQDN for connection or system */ |
688 | httpGetHostname(http_t *http, /* I - HTTP connection or NULL */ | |
689 | char *s, /* I - String buffer for name */ | |
690 | int slen) /* I - Size of buffer */ | |
0a283777 | 691 | { |
da16e37a | 692 | if (!s || slen <= 1) |
693 | return (NULL); | |
694 | ||
7701ffe8 | 695 | if (http) |
da2337b1 | 696 | { |
697 | if (http->hostname[0] == '/') | |
698 | strlcpy(s, "localhost", slen); | |
699 | else | |
700 | strlcpy(s, http->hostname, slen); | |
701 | } | |
7701ffe8 | 702 | else |
0a283777 | 703 | { |
704 | /* | |
7701ffe8 | 705 | * Get the hostname... |
0a283777 | 706 | */ |
707 | ||
da16e37a | 708 | if (gethostname(s, slen) < 0) |
709 | strlcpy(s, "localhost", slen); | |
7701ffe8 | 710 | |
711 | if (!strchr(s, '.')) | |
712 | { | |
a1a74874 | 713 | #ifdef HAVE_SCDYNAMICSTORECOPYCOMPUTERNAME |
d60acc51 | 714 | /* |
715 | * The hostname is not a FQDN, so use the local hostname from the | |
716 | * SystemConfiguration framework... | |
717 | */ | |
718 | ||
719 | SCDynamicStoreRef sc = SCDynamicStoreCreate(kCFAllocatorDefault, | |
720 | CFSTR("libcups"), NULL, NULL); | |
721 | /* System configuration data */ | |
722 | CFStringRef local = sc ? SCDynamicStoreCopyLocalHostName(sc) : NULL; | |
723 | /* Local host name */ | |
724 | char localStr[1024]; /* Local host name C string */ | |
725 | ||
726 | if (local && CFStringGetCString(local, localStr, sizeof(localStr), | |
727 | kCFStringEncodingUTF8)) | |
728 | { | |
729 | /* | |
730 | * Append ".local." to the hostname we get... | |
731 | */ | |
732 | ||
733 | snprintf(s, slen, "%s.local.", localStr); | |
734 | } | |
735 | ||
736 | if (local) | |
737 | CFRelease(local); | |
738 | if (sc) | |
739 | CFRelease(sc); | |
740 | ||
741 | #else | |
7701ffe8 | 742 | /* |
743 | * The hostname is not a FQDN, so look it up... | |
744 | */ | |
745 | ||
d60acc51 | 746 | struct hostent *host; /* Host entry to get FQDN */ |
747 | ||
da16e37a | 748 | if ((host = gethostbyname(s)) != NULL && host->h_name) |
d60acc51 | 749 | { |
750 | /* | |
751 | * Use the resolved hostname... | |
752 | */ | |
753 | ||
7701ffe8 | 754 | strlcpy(s, host->h_name, slen); |
d60acc51 | 755 | } |
a1a74874 | 756 | #endif /* HAVE_SCDYNAMICSTORECOPYCOMPUTERNAME */ |
7701ffe8 | 757 | } |
0a283777 | 758 | } |
759 | ||
760 | /* | |
761 | * Return the hostname with as much domain info as we have... | |
762 | */ | |
763 | ||
764 | return (s); | |
765 | } | |
766 | ||
767 | ||
365cfbcc | 768 | /* |
c9d3f842 | 769 | * End of "$Id$". |
e92958ad | 770 | */ |