1 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
3 /* GIO - GLib Input, Output and Streaming Library
5 * Copyright (C) 2008 Red Hat, Inc.
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General
18 * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
28 #include "gthreadedresolver.h"
29 #include "gnetworkingprivate.h"
31 #include "gcancellable.h"
32 #include "ginetaddress.h"
33 #include "ginetsocketaddress.h"
35 #include "gsocketaddress.h"
36 #include "gsrvtarget.h"
39 G_DEFINE_TYPE (GThreadedResolver
, g_threaded_resolver
, G_TYPE_RESOLVER
)
42 g_threaded_resolver_init (GThreadedResolver
*gtr
)
47 g_resolver_error_from_addrinfo_error (gint err
)
52 #if defined(EAI_NODATA) && (EAI_NODATA != EAI_NONAME)
56 return G_RESOLVER_ERROR_NOT_FOUND
;
59 return G_RESOLVER_ERROR_TEMPORARY_FAILURE
;
62 return G_RESOLVER_ERROR_INTERNAL
;
66 static struct addrinfo addrinfo_hints
;
69 do_lookup_by_name (GTask
*task
,
70 gpointer source_object
,
72 GCancellable
*cancellable
)
74 const char *hostname
= task_data
;
75 struct addrinfo
*res
= NULL
;
79 retval
= getaddrinfo (hostname
, NULL
, &addrinfo_hints
, &res
);
84 GSocketAddress
*sockaddr
;
88 for (ai
= res
; ai
; ai
= ai
->ai_next
)
90 sockaddr
= g_socket_address_new_from_native (ai
->ai_addr
, ai
->ai_addrlen
);
93 if (!G_IS_INET_SOCKET_ADDRESS (sockaddr
))
95 g_clear_object (&sockaddr
);
99 addr
= g_object_ref (g_inet_socket_address_get_address ((GInetSocketAddress
*)sockaddr
));
100 addresses
= g_list_prepend (addresses
, addr
);
101 g_object_unref (sockaddr
);
104 if (addresses
!= NULL
)
106 addresses
= g_list_reverse (addresses
);
107 g_task_return_pointer (task
, addresses
,
108 (GDestroyNotify
)g_resolver_free_addresses
);
112 /* All addresses failed to be converted to GSocketAddresses. */
113 g_task_return_new_error (task
,
115 G_RESOLVER_ERROR_NOT_FOUND
,
116 _("Error resolving '%s': %s"),
118 _("No valid addresses were found"));
123 g_task_return_new_error (task
,
125 g_resolver_error_from_addrinfo_error (retval
),
126 _("Error resolving '%s': %s"),
127 hostname
, gai_strerror (retval
));
135 lookup_by_name (GResolver
*resolver
,
136 const gchar
*hostname
,
137 GCancellable
*cancellable
,
143 task
= g_task_new (resolver
, cancellable
, NULL
, NULL
);
144 g_task_set_task_data (task
, g_strdup (hostname
), g_free
);
145 g_task_set_return_on_cancel (task
, TRUE
);
146 g_task_run_in_thread_sync (task
, do_lookup_by_name
);
147 addresses
= g_task_propagate_pointer (task
, error
);
148 g_object_unref (task
);
154 lookup_by_name_async (GResolver
*resolver
,
155 const gchar
*hostname
,
156 GCancellable
*cancellable
,
157 GAsyncReadyCallback callback
,
162 task
= g_task_new (resolver
, cancellable
, callback
, user_data
);
163 g_task_set_task_data (task
, g_strdup (hostname
), g_free
);
164 g_task_set_return_on_cancel (task
, TRUE
);
165 g_task_run_in_thread (task
, do_lookup_by_name
);
166 g_object_unref (task
);
170 lookup_by_name_finish (GResolver
*resolver
,
171 GAsyncResult
*result
,
174 g_return_val_if_fail (g_task_is_valid (result
, resolver
), NULL
);
176 return g_task_propagate_pointer (G_TASK (result
), error
);
181 do_lookup_by_address (GTask
*task
,
182 gpointer source_object
,
184 GCancellable
*cancellable
)
186 GInetAddress
*address
= task_data
;
187 struct sockaddr_storage sockaddr
;
189 GSocketAddress
*gsockaddr
;
190 gchar name
[NI_MAXHOST
];
193 gsockaddr
= g_inet_socket_address_new (address
, 0);
194 g_socket_address_to_native (gsockaddr
, (struct sockaddr
*)&sockaddr
,
195 sizeof (sockaddr
), NULL
);
196 sockaddr_size
= g_socket_address_get_native_size (gsockaddr
);
197 g_object_unref (gsockaddr
);
199 retval
= getnameinfo ((struct sockaddr
*)&sockaddr
, sockaddr_size
,
200 name
, sizeof (name
), NULL
, 0, NI_NAMEREQD
);
202 g_task_return_pointer (task
, g_strdup (name
), g_free
);
207 phys
= g_inet_address_to_string (address
);
208 g_task_return_new_error (task
,
210 g_resolver_error_from_addrinfo_error (retval
),
211 _("Error reverse-resolving '%s': %s"),
212 phys
? phys
: "(unknown)",
213 gai_strerror (retval
));
219 lookup_by_address (GResolver
*resolver
,
220 GInetAddress
*address
,
221 GCancellable
*cancellable
,
227 task
= g_task_new (resolver
, cancellable
, NULL
, NULL
);
228 g_task_set_task_data (task
, g_object_ref (address
), g_object_unref
);
229 g_task_set_return_on_cancel (task
, TRUE
);
230 g_task_run_in_thread_sync (task
, do_lookup_by_address
);
231 name
= g_task_propagate_pointer (task
, error
);
232 g_object_unref (task
);
238 lookup_by_address_async (GResolver
*resolver
,
239 GInetAddress
*address
,
240 GCancellable
*cancellable
,
241 GAsyncReadyCallback callback
,
246 task
= g_task_new (resolver
, cancellable
, callback
, user_data
);
247 g_task_set_task_data (task
, g_object_ref (address
), g_object_unref
);
248 g_task_set_return_on_cancel (task
, TRUE
);
249 g_task_run_in_thread (task
, do_lookup_by_address
);
250 g_object_unref (task
);
254 lookup_by_address_finish (GResolver
*resolver
,
255 GAsyncResult
*result
,
258 g_return_val_if_fail (g_task_is_valid (result
, resolver
), NULL
);
260 return g_task_propagate_pointer (G_TASK (result
), error
);
264 #if defined(G_OS_UNIX)
266 #if defined __BIONIC__ && !defined BIND_4_COMPAT
267 /* Copy from bionic/libc/private/arpa_nameser_compat.h
268 * and bionic/libc/private/arpa_nameser.h */
270 unsigned id
:16; /* query identification number */
271 #if BYTE_ORDER == BIG_ENDIAN
272 /* fields in third byte */
273 unsigned qr
: 1; /* response flag */
274 unsigned opcode
: 4; /* purpose of message */
275 unsigned aa
: 1; /* authoritive answer */
276 unsigned tc
: 1; /* truncated message */
277 unsigned rd
: 1; /* recursion desired */
278 /* fields in fourth byte */
279 unsigned ra
: 1; /* recursion available */
280 unsigned unused
:1; /* unused bits (MBZ as of 4.9.3a3) */
281 unsigned ad
: 1; /* authentic data from named */
282 unsigned cd
: 1; /* checking disabled by resolver */
283 unsigned rcode
:4; /* response code */
285 #if BYTE_ORDER == LITTLE_ENDIAN || BYTE_ORDER == PDP_ENDIAN
286 /* fields in third byte */
287 unsigned rd
:1; /* recursion desired */
288 unsigned tc
:1; /* truncated message */
289 unsigned aa
:1; /* authoritive answer */
290 unsigned opcode
:4; /* purpose of message */
291 unsigned qr
:1; /* response flag */
292 /* fields in fourth byte */
293 unsigned rcode
:4; /* response code */
294 unsigned cd
: 1; /* checking disabled by resolver */
295 unsigned ad
: 1; /* authentic data from named */
296 unsigned unused
:1; /* unused bits (MBZ as of 4.9.3a3) */
297 unsigned ra
:1; /* recursion available */
299 /* remaining bytes */
300 unsigned qdcount
:16; /* number of question entries */
301 unsigned ancount
:16; /* number of answer entries */
302 unsigned nscount
:16; /* number of authority entries */
303 unsigned arcount
:16; /* number of resource entries */
306 #define NS_INT32SZ 4 /* #/bytes of data in a uint32_t */
307 #define NS_INT16SZ 2 /* #/bytes of data in a uint16_t */
309 #define NS_GET16(s, cp) do { \
310 const u_char *t_cp = (const u_char *)(cp); \
311 (s) = ((uint16_t)t_cp[0] << 8) \
312 | ((uint16_t)t_cp[1]) \
314 (cp) += NS_INT16SZ; \
315 } while (/*CONSTCOND*/0)
317 #define NS_GET32(l, cp) do { \
318 const u_char *t_cp = (const u_char *)(cp); \
319 (l) = ((uint32_t)t_cp[0] << 24) \
320 | ((uint32_t)t_cp[1] << 16) \
321 | ((uint32_t)t_cp[2] << 8) \
322 | ((uint32_t)t_cp[3]) \
324 (cp) += NS_INT32SZ; \
325 } while (/*CONSTCOND*/0)
327 #define GETSHORT NS_GET16
328 #define GETLONG NS_GET32
332 /* From bionic/libc/private/resolv_private.h */
333 int dn_expand(const u_char
*, const u_char
*, const u_char
*, char *, int);
334 #define dn_skipname __dn_skipname
335 int dn_skipname(const u_char
*, const u_char
*);
337 /* From bionic/libc/private/arpa_nameser_compat.h */
339 #define T_TXT ns_t_txt
340 #define T_SOA ns_t_soa
343 /* From bionic/libc/private/arpa_nameser.h */
344 typedef enum __ns_type
{
345 ns_t_invalid
= 0, /* Cookie. */
346 ns_t_a
= 1, /* Host address. */
347 ns_t_ns
= 2, /* Authoritative server. */
348 ns_t_md
= 3, /* Mail destination. */
349 ns_t_mf
= 4, /* Mail forwarder. */
350 ns_t_cname
= 5, /* Canonical name. */
351 ns_t_soa
= 6, /* Start of authority zone. */
352 ns_t_mb
= 7, /* Mailbox domain name. */
353 ns_t_mg
= 8, /* Mail group member. */
354 ns_t_mr
= 9, /* Mail rename name. */
355 ns_t_null
= 10, /* Null resource record. */
356 ns_t_wks
= 11, /* Well known service. */
357 ns_t_ptr
= 12, /* Domain name pointer. */
358 ns_t_hinfo
= 13, /* Host information. */
359 ns_t_minfo
= 14, /* Mailbox information. */
360 ns_t_mx
= 15, /* Mail routing information. */
361 ns_t_txt
= 16, /* Text strings. */
362 ns_t_rp
= 17, /* Responsible person. */
363 ns_t_afsdb
= 18, /* AFS cell database. */
364 ns_t_x25
= 19, /* X_25 calling address. */
365 ns_t_isdn
= 20, /* ISDN calling address. */
366 ns_t_rt
= 21, /* Router. */
367 ns_t_nsap
= 22, /* NSAP address. */
368 ns_t_nsap_ptr
= 23, /* Reverse NSAP lookup (deprecated). */
369 ns_t_sig
= 24, /* Security signature. */
370 ns_t_key
= 25, /* Security key. */
371 ns_t_px
= 26, /* X.400 mail mapping. */
372 ns_t_gpos
= 27, /* Geographical position (withdrawn). */
373 ns_t_aaaa
= 28, /* Ip6 Address. */
374 ns_t_loc
= 29, /* Location Information. */
375 ns_t_nxt
= 30, /* Next domain (security). */
376 ns_t_eid
= 31, /* Endpoint identifier. */
377 ns_t_nimloc
= 32, /* Nimrod Locator. */
378 ns_t_srv
= 33, /* Server Selection. */
379 ns_t_atma
= 34, /* ATM Address */
380 ns_t_naptr
= 35, /* Naming Authority PoinTeR */
381 ns_t_kx
= 36, /* Key Exchange */
382 ns_t_cert
= 37, /* Certification record */
383 ns_t_a6
= 38, /* IPv6 address (deprecates AAAA) */
384 ns_t_dname
= 39, /* Non-terminal DNAME (for IPv6) */
385 ns_t_sink
= 40, /* Kitchen sink (experimentatl) */
386 ns_t_opt
= 41, /* EDNS0 option (meta-RR) */
387 ns_t_apl
= 42, /* Address prefix list (RFC 3123) */
388 ns_t_tkey
= 249, /* Transaction key */
389 ns_t_tsig
= 250, /* Transaction signature. */
390 ns_t_ixfr
= 251, /* Incremental zone transfer. */
391 ns_t_axfr
= 252, /* Transfer zone of authority. */
392 ns_t_mailb
= 253, /* Transfer mailbox records. */
393 ns_t_maila
= 254, /* Transfer mail agent records. */
394 ns_t_any
= 255, /* Wildcard match. */
395 ns_t_zxfr
= 256, /* BIND-specific, nonstandard. */
399 #endif /* __BIONIC__ */
402 parse_res_srv (guchar
*answer
,
407 guint16 priority
, weight
, port
;
409 GETSHORT (priority
, *p
);
410 GETSHORT (weight
, *p
);
412 *p
+= dn_expand (answer
, end
, *p
, namebuf
, sizeof (namebuf
));
414 return g_variant_new ("(qqqs)",
422 parse_res_soa (guchar
*answer
,
426 gchar mnamebuf
[1024];
427 gchar rnamebuf
[1024];
428 guint32 serial
, refresh
, retry
, expire
, ttl
;
430 *p
+= dn_expand (answer
, end
, *p
, mnamebuf
, sizeof (mnamebuf
));
431 *p
+= dn_expand (answer
, end
, *p
, rnamebuf
, sizeof (rnamebuf
));
433 GETLONG (serial
, *p
);
434 GETLONG (refresh
, *p
);
436 GETLONG (expire
, *p
);
439 return g_variant_new ("(ssuuuuu)",
450 parse_res_ns (guchar
*answer
,
456 *p
+= dn_expand (answer
, end
, *p
, namebuf
, sizeof (namebuf
));
458 return g_variant_new ("(s)", namebuf
);
462 parse_res_mx (guchar
*answer
,
469 GETSHORT (preference
, *p
);
471 *p
+= dn_expand (answer
, end
, *p
, namebuf
, sizeof (namebuf
));
473 return g_variant_new ("(qs)",
479 parse_res_txt (guchar
*answer
,
488 array
= g_ptr_array_new_with_free_func (g_free
);
494 g_ptr_array_add (array
, g_strndup ((gchar
*)at
, len
));
499 record
= g_variant_new ("(@as)",
500 g_variant_new_strv ((const gchar
**)array
->pdata
, array
->len
));
501 g_ptr_array_free (array
, TRUE
);
506 g_resolver_record_type_to_rrtype (GResolverRecordType type
)
510 case G_RESOLVER_RECORD_SRV
:
512 case G_RESOLVER_RECORD_TXT
:
514 case G_RESOLVER_RECORD_SOA
:
516 case G_RESOLVER_RECORD_NS
:
518 case G_RESOLVER_RECORD_MX
:
521 g_return_val_if_reached (-1);
525 g_resolver_records_from_res_query (const gchar
*rrname
,
535 guint16 type
, qclass
, rdlength
;
543 if (len
== 0 || herr
== HOST_NOT_FOUND
|| herr
== NO_DATA
)
545 g_set_error (error
, G_RESOLVER_ERROR
, G_RESOLVER_ERROR_NOT_FOUND
,
546 _("No DNS record of the requested type for '%s'"), rrname
);
548 else if (herr
== TRY_AGAIN
)
550 g_set_error (error
, G_RESOLVER_ERROR
, G_RESOLVER_ERROR_TEMPORARY_FAILURE
,
551 _("Temporarily unable to resolve '%s'"), rrname
);
555 g_set_error (error
, G_RESOLVER_ERROR
, G_RESOLVER_ERROR_INTERNAL
,
556 _("Error resolving '%s'"), rrname
);
564 header
= (HEADER
*)answer
;
565 p
= answer
+ sizeof (HEADER
);
569 count
= ntohs (header
->qdcount
);
570 while (count
-- && p
< end
)
572 p
+= dn_expand (answer
, end
, p
, namebuf
, sizeof (namebuf
));
575 /* To silence gcc warnings */
576 namebuf
[0] = namebuf
[1];
580 count
= ntohs (header
->ancount
);
581 while (count
-- && p
< end
)
583 p
+= dn_expand (answer
, end
, p
, namebuf
, sizeof (namebuf
));
585 GETSHORT (qclass
, p
);
587 ttl
= ttl
; /* To avoid -Wunused-but-set-variable */
588 GETSHORT (rdlength
, p
);
590 if (type
!= rrtype
|| qclass
!= C_IN
)
599 record
= parse_res_srv (answer
, end
, &p
);
602 record
= parse_res_mx (answer
, end
, &p
);
605 record
= parse_res_soa (answer
, end
, &p
);
608 record
= parse_res_ns (answer
, end
, &p
);
611 record
= parse_res_txt (answer
, p
+ rdlength
, &p
);
614 g_warn_if_reached ();
620 records
= g_list_prepend (records
, record
);
625 g_set_error (error
, G_RESOLVER_ERROR
, G_RESOLVER_ERROR_NOT_FOUND
,
626 _("No DNS record of the requested type for '%s'"), rrname
);
634 #elif defined(G_OS_WIN32)
637 parse_dns_srv (DNS_RECORD
*rec
)
639 return g_variant_new ("(qqqs)",
640 (guint16
)rec
->Data
.SRV
.wPriority
,
641 (guint16
)rec
->Data
.SRV
.wWeight
,
642 (guint16
)rec
->Data
.SRV
.wPort
,
643 rec
->Data
.SRV
.pNameTarget
);
647 parse_dns_soa (DNS_RECORD
*rec
)
649 return g_variant_new ("(ssuuuuu)",
650 rec
->Data
.SOA
.pNamePrimaryServer
,
651 rec
->Data
.SOA
.pNameAdministrator
,
652 (guint32
)rec
->Data
.SOA
.dwSerialNo
,
653 (guint32
)rec
->Data
.SOA
.dwRefresh
,
654 (guint32
)rec
->Data
.SOA
.dwRetry
,
655 (guint32
)rec
->Data
.SOA
.dwExpire
,
656 (guint32
)rec
->Data
.SOA
.dwDefaultTtl
);
660 parse_dns_ns (DNS_RECORD
*rec
)
662 return g_variant_new ("(s)", rec
->Data
.NS
.pNameHost
);
666 parse_dns_mx (DNS_RECORD
*rec
)
668 return g_variant_new ("(qs)",
669 (guint16
)rec
->Data
.MX
.wPreference
,
670 rec
->Data
.MX
.pNameExchange
);
674 parse_dns_txt (DNS_RECORD
*rec
)
680 array
= g_ptr_array_new ();
681 for (i
= 0; i
< rec
->Data
.TXT
.dwStringCount
; i
++)
682 g_ptr_array_add (array
, rec
->Data
.TXT
.pStringArray
[i
]);
683 record
= g_variant_new ("(@as)",
684 g_variant_new_strv ((const gchar
**)array
->pdata
, array
->len
));
685 g_ptr_array_free (array
, TRUE
);
690 g_resolver_record_type_to_dnstype (GResolverRecordType type
)
694 case G_RESOLVER_RECORD_SRV
:
696 case G_RESOLVER_RECORD_TXT
:
697 return DNS_TYPE_TEXT
;
698 case G_RESOLVER_RECORD_SOA
:
700 case G_RESOLVER_RECORD_NS
:
702 case G_RESOLVER_RECORD_MX
:
705 g_return_val_if_reached (-1);
709 g_resolver_records_from_DnsQuery (const gchar
*rrname
,
719 if (status
!= ERROR_SUCCESS
)
721 if (status
== DNS_ERROR_RCODE_NAME_ERROR
)
723 g_set_error (error
, G_RESOLVER_ERROR
, G_RESOLVER_ERROR_NOT_FOUND
,
724 _("No DNS record of the requested type for '%s'"), rrname
);
726 else if (status
== DNS_ERROR_RCODE_SERVER_FAILURE
)
728 g_set_error (error
, G_RESOLVER_ERROR
, G_RESOLVER_ERROR_TEMPORARY_FAILURE
,
729 _("Temporarily unable to resolve '%s'"), rrname
);
733 g_set_error (error
, G_RESOLVER_ERROR
, G_RESOLVER_ERROR_INTERNAL
,
734 _("Error resolving '%s'"), rrname
);
741 for (rec
= results
; rec
; rec
= rec
->pNext
)
743 if (rec
->wType
!= dnstype
)
748 record
= parse_dns_srv (rec
);
751 record
= parse_dns_soa (rec
);
754 record
= parse_dns_ns (rec
);
757 record
= parse_dns_mx (rec
);
760 record
= parse_dns_txt (rec
);
763 g_warn_if_reached ();
768 records
= g_list_prepend (records
, g_variant_ref_sink (record
));
773 g_set_error (error
, G_RESOLVER_ERROR
, G_RESOLVER_ERROR_NOT_FOUND
,
774 _("No DNS record of the requested type for '%s'"), rrname
);
786 GResolverRecordType record_type
;
790 free_lookup_records_data (LookupRecordsData
*lrd
)
792 g_free (lrd
->rrname
);
793 g_slice_free (LookupRecordsData
, lrd
);
797 free_records (GList
*records
)
799 g_list_free_full (records
, (GDestroyNotify
) g_variant_unref
);
802 #if defined(G_OS_UNIX)
805 int res_query(const char *, int, int, u_char
*, int);
810 do_lookup_records (GTask
*task
,
811 gpointer source_object
,
813 GCancellable
*cancellable
)
815 LookupRecordsData
*lrd
= task_data
;
817 GError
*error
= NULL
;
819 #if defined(G_OS_UNIX)
825 rrtype
= g_resolver_record_type_to_rrtype (lrd
->record_type
);
826 answer
= g_byte_array_new ();
829 g_byte_array_set_size (answer
, len
* 2);
830 len
= res_query (lrd
->rrname
, C_IN
, rrtype
, answer
->data
, answer
->len
);
832 /* If answer fit in the buffer then we're done */
833 if (len
< 0 || len
< (gint
)answer
->len
)
837 * On overflow some res_query's return the length needed, others
838 * return the full length entered. This code works in either case.
843 records
= g_resolver_records_from_res_query (lrd
->rrname
, rrtype
, answer
->data
, len
, herr
, &error
);
844 g_byte_array_free (answer
, TRUE
);
849 DNS_RECORD
*results
= NULL
;
852 dnstype
= g_resolver_record_type_to_dnstype (lrd
->record_type
);
853 status
= DnsQuery_A (lrd
->rrname
, dnstype
, DNS_QUERY_STANDARD
, NULL
, &results
, NULL
);
854 records
= g_resolver_records_from_DnsQuery (lrd
->rrname
, dnstype
, status
, results
, &error
);
856 DnsRecordListFree (results
, DnsFreeRecordList
);
861 g_task_return_pointer (task
, records
, (GDestroyNotify
) free_records
);
863 g_task_return_error (task
, error
);
867 lookup_records (GResolver
*resolver
,
869 GResolverRecordType record_type
,
870 GCancellable
*cancellable
,
875 LookupRecordsData
*lrd
;
877 task
= g_task_new (resolver
, cancellable
, NULL
, NULL
);
879 lrd
= g_slice_new (LookupRecordsData
);
880 lrd
->rrname
= g_strdup (rrname
);
881 lrd
->record_type
= record_type
;
882 g_task_set_task_data (task
, lrd
, (GDestroyNotify
) free_lookup_records_data
);
884 g_task_set_return_on_cancel (task
, TRUE
);
885 g_task_run_in_thread_sync (task
, do_lookup_records
);
886 records
= g_task_propagate_pointer (task
, error
);
887 g_object_unref (task
);
893 lookup_records_async (GResolver
*resolver
,
895 GResolverRecordType record_type
,
896 GCancellable
*cancellable
,
897 GAsyncReadyCallback callback
,
901 LookupRecordsData
*lrd
;
903 task
= g_task_new (resolver
, cancellable
, callback
, user_data
);
905 lrd
= g_slice_new (LookupRecordsData
);
906 lrd
->rrname
= g_strdup (rrname
);
907 lrd
->record_type
= record_type
;
908 g_task_set_task_data (task
, lrd
, (GDestroyNotify
) free_lookup_records_data
);
910 g_task_set_return_on_cancel (task
, TRUE
);
911 g_task_run_in_thread (task
, do_lookup_records
);
912 g_object_unref (task
);
916 lookup_records_finish (GResolver
*resolver
,
917 GAsyncResult
*result
,
920 g_return_val_if_fail (g_task_is_valid (result
, resolver
), NULL
);
922 return g_task_propagate_pointer (G_TASK (result
), error
);
927 g_threaded_resolver_class_init (GThreadedResolverClass
*threaded_class
)
929 GResolverClass
*resolver_class
= G_RESOLVER_CLASS (threaded_class
);
931 resolver_class
->lookup_by_name
= lookup_by_name
;
932 resolver_class
->lookup_by_name_async
= lookup_by_name_async
;
933 resolver_class
->lookup_by_name_finish
= lookup_by_name_finish
;
934 resolver_class
->lookup_by_address
= lookup_by_address
;
935 resolver_class
->lookup_by_address_async
= lookup_by_address_async
;
936 resolver_class
->lookup_by_address_finish
= lookup_by_address_finish
;
937 resolver_class
->lookup_records
= lookup_records
;
938 resolver_class
->lookup_records_async
= lookup_records_async
;
939 resolver_class
->lookup_records_finish
= lookup_records_finish
;
941 /* Initialize addrinfo_hints */
943 addrinfo_hints
.ai_flags
|= AI_ADDRCONFIG
;
945 /* These two don't actually matter, they just get copied into the
946 * returned addrinfo structures (and then we ignore them). But if
947 * we leave them unset, we'll get back duplicate answers.
949 addrinfo_hints
.ai_socktype
= SOCK_STREAM
;
950 addrinfo_hints
.ai_protocol
= IPPROTO_TCP
;