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, write to the
19 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
20 * Boston, MA 02111-1307, USA.
27 #include "gresolver.h"
28 #include "gnetworkingprivate.h"
29 #include "gasyncresult.h"
30 #include "ginetaddress.h"
31 #include "ginetsocketaddress.h"
32 #include "gsimpleasyncresult.h"
33 #include "gsrvtarget.h"
36 #include "gunixresolver.h"
40 #include "gwin32resolver.h"
48 * @short_description: Asynchronous and cancellable DNS resolver
51 * #GResolver provides cancellable synchronous and asynchronous DNS
52 * resolution, for hostnames (g_resolver_lookup_by_address(),
53 * g_resolver_lookup_by_name() and their async variants) and SRV
54 * (service) records (g_resolver_lookup_service()).
56 * #GNetworkAddress and #GNetworkService provide wrappers around
57 * #GResolver functionality that also implement #GSocketConnectable,
58 * making it easy to connect to a remote host/service.
66 static guint signals[LAST_SIGNAL] = { 0 };
68 struct _GResolverPrivate {
70 time_t resolv_conf_timestamp;
79 * The object that handles DNS resolution. Use g_resolver_get_default()
80 * to get the default resolver.
82 G_DEFINE_TYPE (GResolver, g_resolver, G_TYPE_OBJECT)
85 g_resolver_class_init (GResolverClass *resolver_class)
89 g_type_class_add_private (resolver_class, sizeof (GResolverPrivate));
91 /* Make sure _g_networking_init() has been called */
92 type = g_inet_address_get_type ();
94 /* Initialize _g_resolver_addrinfo_hints */
96 _g_resolver_addrinfo_hints.ai_flags |= AI_ADDRCONFIG;
98 /* These two don't actually matter, they just get copied into the
99 * returned addrinfo structures (and then we ignore them). But if
100 * we leave them unset, we'll get back duplicate answers.
102 _g_resolver_addrinfo_hints.ai_socktype = SOCK_STREAM;
103 _g_resolver_addrinfo_hints.ai_protocol = IPPROTO_TCP;
107 * @resolver: a #GResolver
109 * Emitted when the resolver notices that the system resolver
110 * configuration has changed.
113 g_signal_new (I_("reload"),
116 G_STRUCT_OFFSET (GResolverClass, reload),
118 g_cclosure_marshal_VOID__VOID,
123 g_resolver_init (GResolver *resolver)
129 resolver->priv = G_TYPE_INSTANCE_GET_PRIVATE (resolver, G_TYPE_RESOLVER, GResolverPrivate);
132 if (stat (_PATH_RESCONF, &st) == 0)
133 resolver->priv->resolv_conf_timestamp = st.st_mtime;
137 static GResolver *default_resolver;
140 * g_resolver_get_default:
142 * Gets the default #GResolver. You should unref it when you are done
143 * with it. #GResolver may use its reference count as a hint about how
144 * many threads/processes, etc it should allocate for concurrent DNS
147 * Return value: the default #GResolver.
152 g_resolver_get_default (void)
154 if (!default_resolver)
156 if (g_thread_supported ())
157 default_resolver = g_object_new (G_TYPE_THREADED_RESOLVER, NULL);
160 #if defined(G_OS_UNIX)
161 default_resolver = g_object_new (G_TYPE_UNIX_RESOLVER, NULL);
162 #elif defined(G_OS_WIN32)
163 default_resolver = g_object_new (G_TYPE_WIN32_RESOLVER, NULL);
168 return g_object_ref (default_resolver);
172 * g_resolver_set_default:
173 * @resolver: the new default #GResolver
175 * Sets @resolver to be the application's default resolver (reffing
176 * @resolver, and unreffing the previous default resolver, if any).
177 * Future calls to g_resolver_get_default() will return this resolver.
179 * This can be used if an application wants to perform any sort of DNS
180 * caching or "pinning"; it can implement its own #GResolver that
181 * calls the original default resolver for DNS operations, and
182 * implements its own cache policies on top of that, and then set
183 * itself as the default resolver for all later code to use.
188 g_resolver_set_default (GResolver *resolver)
190 if (default_resolver)
191 g_object_unref (default_resolver);
192 default_resolver = g_object_ref (resolver);
197 g_resolver_maybe_reload (GResolver *resolver)
202 if (stat (_PATH_RESCONF, &st) == 0)
204 if (st.st_mtime != resolver->priv->resolv_conf_timestamp)
206 resolver->priv->resolv_conf_timestamp = st.st_mtime;
208 g_signal_emit (resolver, signals[RELOAD], 0);
215 * g_resolver_lookup_by_name:
216 * @resolver: a #GResolver
217 * @hostname: the hostname to look up
218 * @cancellable: a #GCancellable, or %NULL
219 * @error: return location for a #GError, or %NULL
221 * Synchronously resolves @hostname to determine its associated IP
222 * address(es). @hostname may be an ASCII-only or UTF-8 hostname, or
223 * the textual form of an IP address (in which case this just becomes
224 * a wrapper around g_inet_address_new_from_string()).
226 * On success, g_resolver_lookup_by_name() will return a #GList of
227 * #GInetAddress, sorted in order of preference. (That is, you should
228 * attempt to connect to the first address first, then the second if
229 * the first fails, etc.)
231 * If the DNS resolution fails, @error (if non-%NULL) will be set to a
232 * value from #GResolverError.
234 * If @cancellable is non-%NULL, it can be used to cancel the
235 * operation, in which case @error (if non-%NULL) will be set to
236 * %G_IO_ERROR_CANCELLED.
238 * If you are planning to connect to a socket on the resolved IP
239 * address, it may be easier to create a #GNetworkAddress and use its
240 * #GSocketConnectable interface.
242 * Return value: (element-type GInetAddress) (transfer full): a #GList
243 * of #GInetAddress, or %NULL on error. You
244 * must unref each of the addresses and free the list when you are
245 * done with it. (You can use g_resolver_free_addresses() to do this.)
250 g_resolver_lookup_by_name (GResolver *resolver,
251 const gchar *hostname,
252 GCancellable *cancellable,
257 gchar *ascii_hostname = NULL;
259 g_return_val_if_fail (G_IS_RESOLVER (resolver), NULL);
260 g_return_val_if_fail (hostname != NULL, NULL);
262 /* Check if @hostname is just an IP address */
263 addr = g_inet_address_new_from_string (hostname);
265 return g_list_append (NULL, addr);
267 if (g_hostname_is_non_ascii (hostname))
268 hostname = ascii_hostname = g_hostname_to_ascii (hostname);
270 g_resolver_maybe_reload (resolver);
271 addrs = G_RESOLVER_GET_CLASS (resolver)->
272 lookup_by_name (resolver, hostname, cancellable, error);
274 g_free (ascii_hostname);
279 * g_resolver_lookup_by_name_async:
280 * @resolver: a #GResolver
281 * @hostname: the hostname to look up the address of
282 * @cancellable: a #GCancellable, or %NULL
283 * @callback: callback to call after resolution completes
284 * @user_data: data for @callback
286 * Begins asynchronously resolving @hostname to determine its
287 * associated IP address(es), and eventually calls @callback, which
288 * must call g_resolver_lookup_by_name_finish() to get the result.
289 * See g_resolver_lookup_by_name() for more details.
294 g_resolver_lookup_by_name_async (GResolver *resolver,
295 const gchar *hostname,
296 GCancellable *cancellable,
297 GAsyncReadyCallback callback,
301 gchar *ascii_hostname = NULL;
303 g_return_if_fail (G_IS_RESOLVER (resolver));
304 g_return_if_fail (hostname != NULL);
306 /* Check if @hostname is just an IP address */
307 addr = g_inet_address_new_from_string (hostname);
310 GSimpleAsyncResult *simple;
312 simple = g_simple_async_result_new (G_OBJECT (resolver),
314 g_resolver_lookup_by_name_async);
316 g_simple_async_result_set_op_res_gpointer (simple, addr, g_object_unref);
317 g_simple_async_result_complete_in_idle (simple);
318 g_object_unref (simple);
322 if (g_hostname_is_non_ascii (hostname))
323 hostname = ascii_hostname = g_hostname_to_ascii (hostname);
325 g_resolver_maybe_reload (resolver);
326 G_RESOLVER_GET_CLASS (resolver)->
327 lookup_by_name_async (resolver, hostname, cancellable, callback, user_data);
329 g_free (ascii_hostname);
333 * g_resolver_lookup_by_name_finish:
334 * @resolver: a #GResolver
335 * @result: the result passed to your #GAsyncReadyCallback
336 * @error: return location for a #GError, or %NULL
338 * Retrieves the result of a call to
339 * g_resolver_lookup_by_name_async().
341 * If the DNS resolution failed, @error (if non-%NULL) will be set to
342 * a value from #GResolverError. If the operation was cancelled,
343 * @error will be set to %G_IO_ERROR_CANCELLED.
345 * Return value: (element-type GInetAddress) (transfer full): a #GList
346 * of #GInetAddress, or %NULL on error. See g_resolver_lookup_by_name()
352 g_resolver_lookup_by_name_finish (GResolver *resolver,
353 GAsyncResult *result,
356 g_return_val_if_fail (G_IS_RESOLVER (resolver), NULL);
358 if (G_IS_SIMPLE_ASYNC_RESULT (result))
360 GSimpleAsyncResult *simple = G_SIMPLE_ASYNC_RESULT (result);
362 if (g_simple_async_result_propagate_error (simple, error))
365 /* Handle the stringified-IP-addr case */
366 if (g_simple_async_result_get_source_tag (simple) == g_resolver_lookup_by_name_async)
370 addr = g_simple_async_result_get_op_res_gpointer (simple);
371 return g_list_append (NULL, g_object_ref (addr));
375 return G_RESOLVER_GET_CLASS (resolver)->
376 lookup_by_name_finish (resolver, result, error);
380 * g_resolver_free_addresses: (skip)
381 * @addresses: a #GList of #GInetAddress
383 * Frees @addresses (which should be the return value from
384 * g_resolver_lookup_by_name() or g_resolver_lookup_by_name_finish()).
385 * (This is a convenience method; you can also simply free the results
391 g_resolver_free_addresses (GList *addresses)
395 for (a = addresses; a; a = a->next)
396 g_object_unref (a->data);
397 g_list_free (addresses);
401 * g_resolver_lookup_by_address:
402 * @resolver: a #GResolver
403 * @address: the address to reverse-resolve
404 * @cancellable: a #GCancellable, or %NULL
405 * @error: return location for a #GError, or %NULL
407 * Synchronously reverse-resolves @address to determine its
408 * associated hostname.
410 * If the DNS resolution fails, @error (if non-%NULL) will be set to
411 * a value from #GResolverError.
413 * If @cancellable is non-%NULL, it can be used to cancel the
414 * operation, in which case @error (if non-%NULL) will be set to
415 * %G_IO_ERROR_CANCELLED.
417 * Return value: a hostname (either ASCII-only, or in ASCII-encoded
418 * form), or %NULL on error.
423 g_resolver_lookup_by_address (GResolver *resolver,
424 GInetAddress *address,
425 GCancellable *cancellable,
428 g_return_val_if_fail (G_IS_RESOLVER (resolver), NULL);
429 g_return_val_if_fail (G_IS_INET_ADDRESS (address), NULL);
431 g_resolver_maybe_reload (resolver);
432 return G_RESOLVER_GET_CLASS (resolver)->
433 lookup_by_address (resolver, address, cancellable, error);
437 * g_resolver_lookup_by_address_async:
438 * @resolver: a #GResolver
439 * @address: the address to reverse-resolve
440 * @cancellable: a #GCancellable, or %NULL
441 * @callback: callback to call after resolution completes
442 * @user_data: data for @callback
444 * Begins asynchronously reverse-resolving @address to determine its
445 * associated hostname, and eventually calls @callback, which must
446 * call g_resolver_lookup_by_address_finish() to get the final result.
451 g_resolver_lookup_by_address_async (GResolver *resolver,
452 GInetAddress *address,
453 GCancellable *cancellable,
454 GAsyncReadyCallback callback,
457 g_return_if_fail (G_IS_RESOLVER (resolver));
458 g_return_if_fail (G_IS_INET_ADDRESS (address));
460 g_resolver_maybe_reload (resolver);
461 G_RESOLVER_GET_CLASS (resolver)->
462 lookup_by_address_async (resolver, address, cancellable, callback, user_data);
466 * g_resolver_lookup_by_address_finish:
467 * @resolver: a #GResolver
468 * @result: the result passed to your #GAsyncReadyCallback
469 * @error: return location for a #GError, or %NULL
471 * Retrieves the result of a previous call to
472 * g_resolver_lookup_by_address_async().
474 * If the DNS resolution failed, @error (if non-%NULL) will be set to
475 * a value from #GResolverError. If the operation was cancelled,
476 * @error will be set to %G_IO_ERROR_CANCELLED.
478 * Return value: a hostname (either ASCII-only, or in ASCII-encoded
479 * form), or %NULL on error.
484 g_resolver_lookup_by_address_finish (GResolver *resolver,
485 GAsyncResult *result,
488 g_return_val_if_fail (G_IS_RESOLVER (resolver), NULL);
490 if (G_IS_SIMPLE_ASYNC_RESULT (result))
492 GSimpleAsyncResult *simple = G_SIMPLE_ASYNC_RESULT (result);
494 if (g_simple_async_result_propagate_error (simple, error))
498 return G_RESOLVER_GET_CLASS (resolver)->
499 lookup_by_address_finish (resolver, result, error);
503 g_resolver_get_service_rrname (const char *service,
504 const char *protocol,
507 gchar *rrname, *ascii_domain = NULL;
509 if (g_hostname_is_non_ascii (domain))
510 domain = ascii_domain = g_hostname_to_ascii (domain);
512 rrname = g_strdup_printf ("_%s._%s.%s", service, protocol, domain);
514 g_free (ascii_domain);
519 * g_resolver_lookup_service:
520 * @resolver: a #GResolver
521 * @service: the service type to look up (eg, "ldap")
522 * @protocol: the networking protocol to use for @service (eg, "tcp")
523 * @domain: the DNS domain to look up the service in
524 * @cancellable: a #GCancellable, or %NULL
525 * @error: return location for a #GError, or %NULL
527 * Synchronously performs a DNS SRV lookup for the given @service and
528 * @protocol in the given @domain and returns an array of #GSrvTarget.
529 * @domain may be an ASCII-only or UTF-8 hostname. Note also that the
530 * @service and @protocol arguments <emphasis>do not</emphasis>
531 * include the leading underscore that appears in the actual DNS
534 * On success, g_resolver_lookup_service() will return a #GList of
535 * #GSrvTarget, sorted in order of preference. (That is, you should
536 * attempt to connect to the first target first, then the second if
537 * the first fails, etc.)
539 * If the DNS resolution fails, @error (if non-%NULL) will be set to
540 * a value from #GResolverError.
542 * If @cancellable is non-%NULL, it can be used to cancel the
543 * operation, in which case @error (if non-%NULL) will be set to
544 * %G_IO_ERROR_CANCELLED.
546 * If you are planning to connect to the service, it is usually easier
547 * to create a #GNetworkService and use its #GSocketConnectable
550 * Return value: (element-type GSrvTarget) (transfer full): a #GList of #GSrvTarget,
551 * or %NULL on error. You must free each of the targets and the list when you are
552 * done with it. (You can use g_resolver_free_targets() to do this.)
557 g_resolver_lookup_service (GResolver *resolver,
558 const gchar *service,
559 const gchar *protocol,
561 GCancellable *cancellable,
567 g_return_val_if_fail (G_IS_RESOLVER (resolver), NULL);
568 g_return_val_if_fail (service != NULL, NULL);
569 g_return_val_if_fail (protocol != NULL, NULL);
570 g_return_val_if_fail (domain != NULL, NULL);
572 rrname = g_resolver_get_service_rrname (service, protocol, domain);
574 g_resolver_maybe_reload (resolver);
575 targets = G_RESOLVER_GET_CLASS (resolver)->
576 lookup_service (resolver, rrname, cancellable, error);
583 * g_resolver_lookup_service_async:
584 * @resolver: a #GResolver
585 * @service: the service type to look up (eg, "ldap")
586 * @protocol: the networking protocol to use for @service (eg, "tcp")
587 * @domain: the DNS domain to look up the service in
588 * @cancellable: a #GCancellable, or %NULL
589 * @callback: callback to call after resolution completes
590 * @user_data: data for @callback
592 * Begins asynchronously performing a DNS SRV lookup for the given
593 * @service and @protocol in the given @domain, and eventually calls
594 * @callback, which must call g_resolver_lookup_service_finish() to
595 * get the final result. See g_resolver_lookup_service() for more
601 g_resolver_lookup_service_async (GResolver *resolver,
602 const gchar *service,
603 const gchar *protocol,
605 GCancellable *cancellable,
606 GAsyncReadyCallback callback,
611 g_return_if_fail (G_IS_RESOLVER (resolver));
612 g_return_if_fail (service != NULL);
613 g_return_if_fail (protocol != NULL);
614 g_return_if_fail (domain != NULL);
616 rrname = g_resolver_get_service_rrname (service, protocol, domain);
618 g_resolver_maybe_reload (resolver);
619 G_RESOLVER_GET_CLASS (resolver)->
620 lookup_service_async (resolver, rrname, cancellable, callback, user_data);
626 * g_resolver_lookup_service_finish:
627 * @resolver: a #GResolver
628 * @result: the result passed to your #GAsyncReadyCallback
629 * @error: return location for a #GError, or %NULL
631 * Retrieves the result of a previous call to
632 * g_resolver_lookup_service_async().
634 * If the DNS resolution failed, @error (if non-%NULL) will be set to
635 * a value from #GResolverError. If the operation was cancelled,
636 * @error will be set to %G_IO_ERROR_CANCELLED.
638 * Return value: (element-type GSrvTarget) (transfer full): a #GList of #GSrvTarget,
639 * or %NULL on error. See g_resolver_lookup_service() for more details.
644 g_resolver_lookup_service_finish (GResolver *resolver,
645 GAsyncResult *result,
648 g_return_val_if_fail (G_IS_RESOLVER (resolver), NULL);
650 if (G_IS_SIMPLE_ASYNC_RESULT (result))
652 GSimpleAsyncResult *simple = G_SIMPLE_ASYNC_RESULT (result);
654 if (g_simple_async_result_propagate_error (simple, error))
658 return G_RESOLVER_GET_CLASS (resolver)->
659 lookup_service_finish (resolver, result, error);
663 * g_resolver_free_targets: (skip)
664 * @targets: a #GList of #GSrvTarget
666 * Frees @targets (which should be the return value from
667 * g_resolver_lookup_service() or g_resolver_lookup_service_finish()).
668 * (This is a convenience method; you can also simply free the
674 g_resolver_free_targets (GList *targets)
678 for (t = targets; t; t = t->next)
679 g_srv_target_free (t->data);
680 g_list_free (targets);
684 * g_resolver_error_quark:
686 * Gets the #GResolver Error Quark.
688 * Return value: a #GQuark.
693 g_resolver_error_quark (void)
695 return g_quark_from_static_string ("g-resolver-error-quark");
699 static GResolverError
700 g_resolver_error_from_addrinfo_error (gint err)
705 #if defined(EAI_NODATA) && (EAI_NODATA != EAI_NONAME)
709 return G_RESOLVER_ERROR_NOT_FOUND;
712 return G_RESOLVER_ERROR_TEMPORARY_FAILURE;
715 return G_RESOLVER_ERROR_INTERNAL;
719 struct addrinfo _g_resolver_addrinfo_hints;
721 /* Private method to process a getaddrinfo() response. */
723 _g_resolver_addresses_from_addrinfo (const char *hostname,
724 struct addrinfo *res,
729 GSocketAddress *sockaddr;
735 g_set_error (error, G_RESOLVER_ERROR,
736 g_resolver_error_from_addrinfo_error (gai_retval),
737 _("Error resolving '%s': %s"),
738 hostname, gai_strerror (gai_retval));
742 g_return_val_if_fail (res != NULL, NULL);
745 for (ai = res; ai; ai = ai->ai_next)
747 sockaddr = g_socket_address_new_from_native (ai->ai_addr, ai->ai_addrlen);
748 if (!sockaddr || !G_IS_INET_SOCKET_ADDRESS (sockaddr))
751 addr = g_object_ref (g_inet_socket_address_get_address ((GInetSocketAddress *)sockaddr));
752 addrs = g_list_prepend (addrs, addr);
753 g_object_unref (sockaddr);
756 return g_list_reverse (addrs);
759 /* Private method to set up a getnameinfo() request */
761 _g_resolver_address_to_sockaddr (GInetAddress *address,
762 struct sockaddr_storage *sa,
765 GSocketAddress *sockaddr;
767 sockaddr = g_inet_socket_address_new (address, 0);
768 g_socket_address_to_native (sockaddr, (struct sockaddr *)sa, sizeof (*sa), NULL);
769 *len = g_socket_address_get_native_size (sockaddr);
770 g_object_unref (sockaddr);
773 /* Private method to process a getnameinfo() response. */
775 _g_resolver_name_from_nameinfo (GInetAddress *address,
784 phys = g_inet_address_to_string (address);
785 g_set_error (error, G_RESOLVER_ERROR,
786 g_resolver_error_from_addrinfo_error (gni_retval),
787 _("Error reverse-resolving '%s': %s"),
788 phys ? phys : "(unknown)", gai_strerror (gni_retval));
793 return g_strdup (name);
796 #if defined(G_OS_UNIX)
797 /* Private method to process a res_query response into GSrvTargets */
799 _g_resolver_targets_from_res_query (const gchar *rrname,
808 guint16 type, qclass, rdlength, priority, weight, port;
816 GResolverError errnum;
819 if (len == 0 || herr == HOST_NOT_FOUND || herr == NO_DATA)
821 errnum = G_RESOLVER_ERROR_NOT_FOUND;
822 format = _("No service record for '%s'");
824 else if (herr == TRY_AGAIN)
826 errnum = G_RESOLVER_ERROR_TEMPORARY_FAILURE;
827 format = _("Temporarily unable to resolve '%s'");
831 errnum = G_RESOLVER_ERROR_INTERNAL;
832 format = _("Error resolving '%s'");
835 g_set_error (error, G_RESOLVER_ERROR, errnum, format, rrname);
841 header = (HEADER *)answer;
842 p = answer + sizeof (HEADER);
846 count = ntohs (header->qdcount);
847 while (count-- && p < end)
849 p += dn_expand (answer, end, p, namebuf, sizeof (namebuf));
854 count = ntohs (header->ancount);
855 while (count-- && p < end)
857 p += dn_expand (answer, end, p, namebuf, sizeof (namebuf));
859 GETSHORT (qclass, p);
861 GETSHORT (rdlength, p);
863 if (type != T_SRV || qclass != C_IN)
869 GETSHORT (priority, p);
870 GETSHORT (weight, p);
872 p += dn_expand (answer, end, p, namebuf, sizeof (namebuf));
874 target = g_srv_target_new (namebuf, port, priority, weight);
875 targets = g_list_prepend (targets, target);
878 return g_srv_target_list_sort (targets);
880 #elif defined(G_OS_WIN32)
881 /* Private method to process a DnsQuery response into GSrvTargets */
883 _g_resolver_targets_from_DnsQuery (const gchar *rrname,
892 if (status != ERROR_SUCCESS)
894 GResolverError errnum;
897 if (status == DNS_ERROR_RCODE_NAME_ERROR)
899 errnum = G_RESOLVER_ERROR_NOT_FOUND;
900 format = _("No service record for '%s'");
902 else if (status == DNS_ERROR_RCODE_SERVER_FAILURE)
904 errnum = G_RESOLVER_ERROR_TEMPORARY_FAILURE;
905 format = _("Temporarily unable to resolve '%s'");
909 errnum = G_RESOLVER_ERROR_INTERNAL;
910 format = _("Error resolving '%s'");
913 g_set_error (error, G_RESOLVER_ERROR, errnum, format, rrname);
918 for (rec = results; rec; rec = rec->pNext)
920 if (rec->wType != DNS_TYPE_SRV)
923 target = g_srv_target_new (rec->Data.SRV.pNameTarget,
925 rec->Data.SRV.wPriority,
926 rec->Data.SRV.wWeight);
927 targets = g_list_prepend (targets, target);
930 return g_srv_target_list_sort (targets);