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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
4e8c8252 | 2 | /*** |
cbc06dcd | 3 | This file is part of systemd. |
4e8c8252 | 4 | |
8041b5ba | 5 | Copyright 2008-2011 Lennart Poettering |
4e8c8252 | 6 | ***/ |
6b21f0cf | 7 | |
6b21f0cf | 8 | #include <errno.h> |
4e8c8252 | 9 | #include <net/if.h> |
07630cea LP |
10 | #include <netdb.h> |
11 | #include <nss.h> | |
8041b5ba | 12 | #include <stdlib.h> |
07630cea | 13 | #include <string.h> |
8041b5ba | 14 | |
b5efdb8a | 15 | #include "alloc-util.h" |
07630cea | 16 | #include "hostname-util.h" |
e80af1bd | 17 | #include "local-addresses.h" |
1c633045 | 18 | #include "macro.h" |
c9fdc26e | 19 | #include "nss-util.h" |
0c5eb056 | 20 | #include "signal-util.h" |
07630cea | 21 | #include "string-util.h" |
c9fdc26e | 22 | #include "util.h" |
4e8c8252 LP |
23 | |
24 | /* We use 127.0.0.2 as IPv4 address. This has the advantage over | |
25 | * 127.0.0.1 that it can be translated back to the local hostname. For | |
26 | * IPv6 we use ::1 which unfortunately will not translate back to the | |
3fdcecc8 | 27 | * hostname but instead something like "localhost" or so. */ |
4e8c8252 | 28 | |
8e38570e | 29 | #define LOCALADDRESS_IPV4 (htobe32(0x7F000002)) |
4e8c8252 | 30 | #define LOCALADDRESS_IPV6 &in6addr_loopback |
4e8c8252 | 31 | |
c9fdc26e LP |
32 | NSS_GETHOSTBYNAME_PROTOTYPES(myhostname); |
33 | NSS_GETHOSTBYADDR_PROTOTYPES(myhostname); | |
8041b5ba | 34 | |
4e8c8252 LP |
35 | enum nss_status _nss_myhostname_gethostbyname4_r( |
36 | const char *name, | |
37 | struct gaih_addrtuple **pat, | |
38 | char *buffer, size_t buflen, | |
39 | int *errnop, int *h_errnop, | |
40 | int32_t *ttlp) { | |
41 | ||
8041b5ba | 42 | struct gaih_addrtuple *r_tuple, *r_tuple_prev = NULL; |
e80af1bd | 43 | _cleanup_free_ struct local_address *addresses = NULL; |
5502f0d9 LP |
44 | _cleanup_free_ char *hn = NULL; |
45 | const char *canonical = NULL; | |
a1077c84 | 46 | int n_addresses = 0; |
e8a7a315 | 47 | uint32_t local_address_ipv4; |
e80af1bd | 48 | struct local_address *a; |
5502f0d9 LP |
49 | size_t l, idx, ms; |
50 | char *r_name; | |
e80af1bd | 51 | unsigned n; |
4e8c8252 | 52 | |
0c5eb056 LP |
53 | BLOCK_SIGNALS(NSS_SIGNALS_BLOCK); |
54 | ||
5502f0d9 LP |
55 | assert(name); |
56 | assert(pat); | |
57 | assert(buffer); | |
58 | assert(errnop); | |
59 | assert(h_errnop); | |
60 | ||
61 | if (is_localhost(name)) { | |
e8a7a315 LP |
62 | /* We respond to 'localhost', so that /etc/hosts |
63 | * is optional */ | |
4e8c8252 | 64 | |
e8a7a315 | 65 | canonical = "localhost"; |
8e38570e | 66 | local_address_ipv4 = htobe32(INADDR_LOOPBACK); |
e9140aff | 67 | |
46a5e0e7 | 68 | } else if (is_gateway_hostname(name)) { |
e9140aff | 69 | |
1d050e1e | 70 | n_addresses = local_gateways(NULL, 0, AF_UNSPEC, &addresses); |
e9140aff LP |
71 | if (n_addresses <= 0) { |
72 | *errnop = ENOENT; | |
73 | *h_errnop = HOST_NOT_FOUND; | |
74 | return NSS_STATUS_NOTFOUND; | |
75 | } | |
76 | ||
5248e7e1 | 77 | canonical = "_gateway"; |
e9140aff | 78 | |
e8a7a315 | 79 | } else { |
5502f0d9 LP |
80 | hn = gethostname_malloc(); |
81 | if (!hn) { | |
82 | *errnop = ENOMEM; | |
e8a7a315 | 83 | *h_errnop = NO_RECOVERY; |
5502f0d9 | 84 | return NSS_STATUS_TRYAGAIN; |
e8a7a315 LP |
85 | } |
86 | ||
61233823 | 87 | /* We respond to our local host name, our hostname suffixed with a single dot. */ |
5502f0d9 | 88 | if (!streq(name, hn) && !streq_ptr(startswith(name, hn), ".")) { |
e8a7a315 LP |
89 | *errnop = ENOENT; |
90 | *h_errnop = HOST_NOT_FOUND; | |
91 | return NSS_STATUS_NOTFOUND; | |
92 | } | |
93 | ||
1d050e1e | 94 | n_addresses = local_addresses(NULL, 0, AF_UNSPEC, &addresses); |
e80af1bd LP |
95 | if (n_addresses < 0) |
96 | n_addresses = 0; | |
e8a7a315 LP |
97 | |
98 | canonical = hn; | |
99 | local_address_ipv4 = LOCALADDRESS_IPV4; | |
100 | } | |
8041b5ba | 101 | |
e8a7a315 | 102 | l = strlen(canonical); |
5502f0d9 | 103 | ms = ALIGN(l+1) + ALIGN(sizeof(struct gaih_addrtuple)) * (n_addresses > 0 ? n_addresses : 2); |
4e8c8252 | 104 | if (buflen < ms) { |
cda458a5 LP |
105 | *errnop = ERANGE; |
106 | *h_errnop = NETDB_INTERNAL; | |
4e8c8252 LP |
107 | return NSS_STATUS_TRYAGAIN; |
108 | } | |
109 | ||
110 | /* First, fill in hostname */ | |
111 | r_name = buffer; | |
e8a7a315 | 112 | memcpy(r_name, canonical, l+1); |
4e8c8252 LP |
113 | idx = ALIGN(l+1); |
114 | ||
68a9c7c4 ZJS |
115 | assert(n_addresses >= 0); |
116 | if (n_addresses == 0) { | |
8041b5ba LP |
117 | /* Second, fill in IPv6 tuple */ |
118 | r_tuple = (struct gaih_addrtuple*) (buffer + idx); | |
119 | r_tuple->next = r_tuple_prev; | |
120 | r_tuple->name = r_name; | |
121 | r_tuple->family = AF_INET6; | |
122 | memcpy(r_tuple->addr, LOCALADDRESS_IPV6, 16); | |
a1077c84 | 123 | r_tuple->scopeid = 0; |
8041b5ba LP |
124 | |
125 | idx += ALIGN(sizeof(struct gaih_addrtuple)); | |
126 | r_tuple_prev = r_tuple; | |
127 | ||
128 | /* Third, fill in IPv4 tuple */ | |
129 | r_tuple = (struct gaih_addrtuple*) (buffer + idx); | |
130 | r_tuple->next = r_tuple_prev; | |
131 | r_tuple->name = r_name; | |
132 | r_tuple->family = AF_INET; | |
e8a7a315 | 133 | *(uint32_t*) r_tuple->addr = local_address_ipv4; |
a1077c84 | 134 | r_tuple->scopeid = 0; |
8041b5ba LP |
135 | |
136 | idx += ALIGN(sizeof(struct gaih_addrtuple)); | |
137 | r_tuple_prev = r_tuple; | |
138 | } | |
139 | ||
140 | /* Fourth, fill actual addresses in, but in backwards order */ | |
e80af1bd | 141 | for (a = addresses + n_addresses - 1, n = 0; (int) n < n_addresses; n++, a--) { |
8041b5ba LP |
142 | r_tuple = (struct gaih_addrtuple*) (buffer + idx); |
143 | r_tuple->next = r_tuple_prev; | |
144 | r_tuple->name = r_name; | |
145 | r_tuple->family = a->family; | |
a1077c84 | 146 | r_tuple->scopeid = a->family == AF_INET6 && IN6_IS_ADDR_LINKLOCAL(&a->address.in6) ? a->ifindex : 0; |
5502f0d9 | 147 | memcpy(r_tuple->addr, &a->address, 16); |
8041b5ba LP |
148 | |
149 | idx += ALIGN(sizeof(struct gaih_addrtuple)); | |
150 | r_tuple_prev = r_tuple; | |
151 | } | |
4e8c8252 LP |
152 | |
153 | /* Verify the size matches */ | |
154 | assert(idx == ms); | |
155 | ||
d2f1f23a ED |
156 | /* Nscd expects us to store the first record in **pat. */ |
157 | if (*pat) | |
158 | **pat = *r_tuple_prev; | |
159 | else | |
160 | *pat = r_tuple_prev; | |
4e8c8252 LP |
161 | |
162 | if (ttlp) | |
163 | *ttlp = 0; | |
164 | ||
e70df46b LP |
165 | /* Explicitly reset all error variables */ |
166 | *errnop = 0; | |
167 | *h_errnop = NETDB_SUCCESS; | |
168 | h_errno = 0; | |
169 | ||
4e8c8252 LP |
170 | return NSS_STATUS_SUCCESS; |
171 | } | |
6b21f0cf LP |
172 | |
173 | static enum nss_status fill_in_hostent( | |
e8a7a315 | 174 | const char *canonical, const char *additional, |
4e8c8252 | 175 | int af, |
e80af1bd | 176 | struct local_address *addresses, unsigned n_addresses, |
e8a7a315 | 177 | uint32_t local_address_ipv4, |
4e8c8252 LP |
178 | struct hostent *result, |
179 | char *buffer, size_t buflen, | |
180 | int *errnop, int *h_errnop, | |
181 | int32_t *ttlp, | |
182 | char **canonp) { | |
183 | ||
d4c9895d | 184 | size_t l_canonical, l_additional, idx, ms, alen; |
e8a7a315 | 185 | char *r_addr, *r_name, *r_aliases, *r_alias = NULL, *r_addr_list; |
e80af1bd | 186 | struct local_address *a; |
e8a7a315 | 187 | unsigned n, c; |
8041b5ba | 188 | |
5502f0d9 LP |
189 | assert(canonical); |
190 | assert(result); | |
191 | assert(buffer); | |
192 | assert(errnop); | |
193 | assert(h_errnop); | |
194 | ||
9d485985 | 195 | alen = FAMILY_ADDRESS_SIZE(af); |
8041b5ba | 196 | |
8041b5ba LP |
197 | for (a = addresses, n = 0, c = 0; n < n_addresses; a++, n++) |
198 | if (af == a->family) | |
199 | c++; | |
4e8c8252 | 200 | |
e8a7a315 | 201 | l_canonical = strlen(canonical); |
7bf7ce28 | 202 | l_additional = strlen_ptr(additional); |
e8a7a315 LP |
203 | ms = ALIGN(l_canonical+1)+ |
204 | (additional ? ALIGN(l_additional+1) : 0) + | |
5502f0d9 | 205 | sizeof(char*) + |
e8a7a315 | 206 | (additional ? sizeof(char*) : 0) + |
d4c9895d | 207 | (c > 0 ? c : 1) * ALIGN(alen) + |
5502f0d9 | 208 | (c > 0 ? c+1 : 2) * sizeof(char*); |
8041b5ba | 209 | |
4e8c8252 | 210 | if (buflen < ms) { |
cda458a5 LP |
211 | *errnop = ERANGE; |
212 | *h_errnop = NETDB_INTERNAL; | |
4e8c8252 LP |
213 | return NSS_STATUS_TRYAGAIN; |
214 | } | |
215 | ||
e8a7a315 | 216 | /* First, fill in hostnames */ |
4e8c8252 | 217 | r_name = buffer; |
e8a7a315 LP |
218 | memcpy(r_name, canonical, l_canonical+1); |
219 | idx = ALIGN(l_canonical+1); | |
4e8c8252 | 220 | |
e8a7a315 LP |
221 | if (additional) { |
222 | r_alias = buffer + idx; | |
223 | memcpy(r_alias, additional, l_additional+1); | |
224 | idx += ALIGN(l_additional+1); | |
225 | } | |
226 | ||
227 | /* Second, create aliases array */ | |
4e8c8252 | 228 | r_aliases = buffer + idx; |
e8a7a315 LP |
229 | if (additional) { |
230 | ((char**) r_aliases)[0] = r_alias; | |
231 | ((char**) r_aliases)[1] = NULL; | |
232 | idx += 2*sizeof(char*); | |
233 | } else { | |
234 | ((char**) r_aliases)[0] = NULL; | |
235 | idx += sizeof(char*); | |
236 | } | |
4e8c8252 | 237 | |
8041b5ba | 238 | /* Third, add addresses */ |
4e8c8252 | 239 | r_addr = buffer + idx; |
8041b5ba LP |
240 | if (c > 0) { |
241 | unsigned i = 0; | |
242 | ||
243 | for (a = addresses, n = 0; n < n_addresses; a++, n++) { | |
244 | if (af != a->family) | |
245 | continue; | |
246 | ||
5502f0d9 | 247 | memcpy(r_addr + i*ALIGN(alen), &a->address, alen); |
8041b5ba LP |
248 | i++; |
249 | } | |
250 | ||
251 | assert(i == c); | |
252 | idx += c*ALIGN(alen); | |
253 | } else { | |
254 | if (af == AF_INET) | |
e8a7a315 | 255 | *(uint32_t*) r_addr = local_address_ipv4; |
8041b5ba LP |
256 | else |
257 | memcpy(r_addr, LOCALADDRESS_IPV6, 16); | |
258 | ||
259 | idx += ALIGN(alen); | |
260 | } | |
4e8c8252 LP |
261 | |
262 | /* Fourth, add address pointer array */ | |
263 | r_addr_list = buffer + idx; | |
8041b5ba | 264 | if (c > 0) { |
d4c9895d | 265 | unsigned i; |
8041b5ba | 266 | |
d4c9895d LP |
267 | for (i = 0; i < c; i++) |
268 | ((char**) r_addr_list)[i] = r_addr + i*ALIGN(alen); | |
8041b5ba | 269 | |
d4c9895d LP |
270 | ((char**) r_addr_list)[i] = NULL; |
271 | idx += (c+1) * sizeof(char*); | |
8041b5ba LP |
272 | |
273 | } else { | |
274 | ((char**) r_addr_list)[0] = r_addr; | |
275 | ((char**) r_addr_list)[1] = NULL; | |
d4c9895d | 276 | idx += 2 * sizeof(char*); |
8041b5ba | 277 | } |
4e8c8252 LP |
278 | |
279 | /* Verify the size matches */ | |
280 | assert(idx == ms); | |
281 | ||
282 | result->h_name = r_name; | |
283 | result->h_aliases = (char**) r_aliases; | |
284 | result->h_addrtype = af; | |
285 | result->h_length = alen; | |
286 | result->h_addr_list = (char**) r_addr_list; | |
287 | ||
288 | if (ttlp) | |
289 | *ttlp = 0; | |
290 | ||
291 | if (canonp) | |
292 | *canonp = r_name; | |
293 | ||
e70df46b LP |
294 | /* Explicitly reset all error variables */ |
295 | *errnop = 0; | |
296 | *h_errnop = NETDB_SUCCESS; | |
297 | h_errno = 0; | |
298 | ||
4e8c8252 | 299 | return NSS_STATUS_SUCCESS; |
6b21f0cf LP |
300 | } |
301 | ||
4e8c8252 LP |
302 | enum nss_status _nss_myhostname_gethostbyname3_r( |
303 | const char *name, | |
304 | int af, | |
305 | struct hostent *host, | |
306 | char *buffer, size_t buflen, | |
307 | int *errnop, int *h_errnop, | |
308 | int32_t *ttlp, | |
309 | char **canonp) { | |
6b21f0cf | 310 | |
e80af1bd | 311 | _cleanup_free_ struct local_address *addresses = NULL; |
e8a7a315 | 312 | const char *canonical, *additional = NULL; |
5502f0d9 | 313 | _cleanup_free_ char *hn = NULL; |
e9140aff | 314 | uint32_t local_address_ipv4 = 0; |
e80af1bd | 315 | int n_addresses = 0; |
5502f0d9 | 316 | |
0c5eb056 LP |
317 | BLOCK_SIGNALS(NSS_SIGNALS_BLOCK); |
318 | ||
5502f0d9 LP |
319 | assert(name); |
320 | assert(host); | |
321 | assert(buffer); | |
322 | assert(errnop); | |
323 | assert(h_errnop); | |
6b21f0cf | 324 | |
4e8c8252 LP |
325 | if (af == AF_UNSPEC) |
326 | af = AF_INET; | |
6b21f0cf | 327 | |
ec2ce0c5 | 328 | if (!IN_SET(af, AF_INET, AF_INET6)) { |
4e8c8252 LP |
329 | *errnop = EAFNOSUPPORT; |
330 | *h_errnop = NO_DATA; | |
331 | return NSS_STATUS_UNAVAIL; | |
332 | } | |
6b21f0cf | 333 | |
5502f0d9 | 334 | if (is_localhost(name)) { |
e8a7a315 | 335 | canonical = "localhost"; |
8e38570e | 336 | local_address_ipv4 = htobe32(INADDR_LOOPBACK); |
e9140aff | 337 | |
46a5e0e7 | 338 | } else if (is_gateway_hostname(name)) { |
e9140aff | 339 | |
1d050e1e | 340 | n_addresses = local_gateways(NULL, 0, af, &addresses); |
e9140aff LP |
341 | if (n_addresses <= 0) { |
342 | *errnop = ENOENT; | |
343 | *h_errnop = HOST_NOT_FOUND; | |
344 | return NSS_STATUS_NOTFOUND; | |
345 | } | |
346 | ||
5248e7e1 | 347 | canonical = "_gateway"; |
e9140aff | 348 | |
e8a7a315 | 349 | } else { |
5502f0d9 LP |
350 | hn = gethostname_malloc(); |
351 | if (!hn) { | |
352 | *errnop = ENOMEM; | |
e8a7a315 | 353 | *h_errnop = NO_RECOVERY; |
5502f0d9 | 354 | return NSS_STATUS_TRYAGAIN; |
e8a7a315 | 355 | } |
6b21f0cf | 356 | |
5502f0d9 | 357 | if (!streq(name, hn) && !streq_ptr(startswith(name, hn), ".")) { |
e8a7a315 LP |
358 | *errnop = ENOENT; |
359 | *h_errnop = HOST_NOT_FOUND; | |
360 | return NSS_STATUS_NOTFOUND; | |
361 | } | |
362 | ||
1d050e1e | 363 | n_addresses = local_addresses(NULL, 0, af, &addresses); |
e80af1bd LP |
364 | if (n_addresses < 0) |
365 | n_addresses = 0; | |
e8a7a315 LP |
366 | |
367 | canonical = hn; | |
368 | additional = n_addresses <= 0 && af == AF_INET6 ? "localhost" : NULL; | |
369 | local_address_ipv4 = LOCALADDRESS_IPV4; | |
4e8c8252 | 370 | } |
6b21f0cf | 371 | |
e8a7a315 LP |
372 | return fill_in_hostent( |
373 | canonical, additional, | |
374 | af, | |
375 | addresses, n_addresses, | |
376 | local_address_ipv4, | |
377 | host, | |
378 | buffer, buflen, | |
379 | errnop, h_errnop, | |
380 | ttlp, | |
381 | canonp); | |
4e8c8252 | 382 | } |
6b21f0cf | 383 | |
4e8c8252 LP |
384 | enum nss_status _nss_myhostname_gethostbyaddr2_r( |
385 | const void* addr, socklen_t len, | |
386 | int af, | |
387 | struct hostent *host, | |
388 | char *buffer, size_t buflen, | |
389 | int *errnop, int *h_errnop, | |
390 | int32_t *ttlp) { | |
6b21f0cf | 391 | |
e8a7a315 | 392 | const char *canonical = NULL, *additional = NULL; |
5502f0d9 | 393 | uint32_t local_address_ipv4 = LOCALADDRESS_IPV4; |
e80af1bd | 394 | _cleanup_free_ struct local_address *addresses = NULL; |
5502f0d9 | 395 | _cleanup_free_ char *hn = NULL; |
e80af1bd LP |
396 | int n_addresses = 0; |
397 | struct local_address *a; | |
3fdcecc8 | 398 | bool additional_from_hostname = false; |
e80af1bd | 399 | unsigned n; |
5502f0d9 | 400 | |
0c5eb056 LP |
401 | BLOCK_SIGNALS(NSS_SIGNALS_BLOCK); |
402 | ||
5502f0d9 LP |
403 | assert(addr); |
404 | assert(host); | |
405 | assert(buffer); | |
406 | assert(errnop); | |
407 | assert(h_errnop); | |
8041b5ba | 408 | |
555bd6e9 LP |
409 | if (!IN_SET(af, AF_INET, AF_INET6)) { |
410 | *errnop = EAFNOSUPPORT; | |
411 | *h_errnop = NO_DATA; | |
412 | return NSS_STATUS_UNAVAIL; | |
413 | } | |
414 | ||
9d485985 | 415 | if (len != FAMILY_ADDRESS_SIZE(af)) { |
8041b5ba LP |
416 | *errnop = EINVAL; |
417 | *h_errnop = NO_RECOVERY; | |
418 | return NSS_STATUS_UNAVAIL; | |
419 | } | |
6b21f0cf | 420 | |
4e8c8252 | 421 | if (af == AF_INET) { |
8041b5ba LP |
422 | if ((*(uint32_t*) addr) == LOCALADDRESS_IPV4) |
423 | goto found; | |
6b21f0cf | 424 | |
8e38570e | 425 | if ((*(uint32_t*) addr) == htobe32(INADDR_LOOPBACK)) { |
e8a7a315 | 426 | canonical = "localhost"; |
8e38570e | 427 | local_address_ipv4 = htobe32(INADDR_LOOPBACK); |
e8a7a315 LP |
428 | goto found; |
429 | } | |
430 | ||
555bd6e9 LP |
431 | } else { |
432 | assert(af == AF_INET6); | |
8041b5ba | 433 | |
e8a7a315 | 434 | if (memcmp(addr, LOCALADDRESS_IPV6, 16) == 0) { |
3fdcecc8 LP |
435 | canonical = "localhost"; |
436 | additional_from_hostname = true; | |
8041b5ba | 437 | goto found; |
e8a7a315 | 438 | } |
4e8c8252 LP |
439 | } |
440 | ||
1d050e1e | 441 | n_addresses = local_addresses(NULL, 0, AF_UNSPEC, &addresses); |
68a9c7c4 ZJS |
442 | for (a = addresses, n = 0; (int) n < n_addresses; n++, a++) { |
443 | if (af != a->family) | |
444 | continue; | |
8041b5ba | 445 | |
68a9c7c4 ZJS |
446 | if (memcmp(addr, &a->address, FAMILY_ADDRESS_SIZE(af)) == 0) |
447 | goto found; | |
e9140aff LP |
448 | } |
449 | ||
97b11eed | 450 | addresses = mfree(addresses); |
e9140aff | 451 | |
1d050e1e | 452 | n_addresses = local_gateways(NULL, 0, AF_UNSPEC, &addresses); |
68a9c7c4 ZJS |
453 | for (a = addresses, n = 0; (int) n < n_addresses; n++, a++) { |
454 | if (af != a->family) | |
455 | continue; | |
e9140aff | 456 | |
68a9c7c4 | 457 | if (memcmp(addr, &a->address, FAMILY_ADDRESS_SIZE(af)) == 0) { |
5248e7e1 | 458 | canonical = "_gateway"; |
68a9c7c4 | 459 | goto found; |
e9140aff | 460 | } |
8041b5ba LP |
461 | } |
462 | ||
463 | *errnop = ENOENT; | |
464 | *h_errnop = HOST_NOT_FOUND; | |
8041b5ba LP |
465 | return NSS_STATUS_NOTFOUND; |
466 | ||
467 | found: | |
82e4c2d6 | 468 | if (!canonical || additional_from_hostname) { |
3fdcecc8 LP |
469 | hn = gethostname_malloc(); |
470 | if (!hn) { | |
471 | *errnop = ENOMEM; | |
472 | *h_errnop = NO_RECOVERY; | |
473 | return NSS_STATUS_TRYAGAIN; | |
474 | } | |
475 | ||
476 | if (!canonical) | |
477 | canonical = hn; | |
82e4c2d6 | 478 | else |
3fdcecc8 LP |
479 | additional = hn; |
480 | } | |
4e8c8252 | 481 | |
e8a7a315 LP |
482 | return fill_in_hostent( |
483 | canonical, additional, | |
484 | af, | |
485 | addresses, n_addresses, | |
486 | local_address_ipv4, | |
487 | host, | |
488 | buffer, buflen, | |
489 | errnop, h_errnop, | |
490 | ttlp, | |
491 | NULL); | |
4e8c8252 | 492 | } |
6b21f0cf | 493 | |
c9fdc26e LP |
494 | NSS_GETHOSTBYNAME_FALLBACKS(myhostname); |
495 | NSS_GETHOSTBYADDR_FALLBACKS(myhostname); |