-/* $Id$ */
-
/***
This file is part of avahi.
-
+
avahi is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
-
+
avahi is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
Public License for more details.
-
+
You should have received a copy of the GNU Lesser General Public
License along with avahi; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
#include <config.h>
#endif
+#include <stdlib.h>
+
#include <avahi-common/timeval.h>
#include <avahi-common/malloc.h>
#include <avahi-common/error.h>
+#include <avahi-common/domain.h>
#include "browse.h"
struct AvahiSAddressResolver {
AvahiServer *server;
AvahiAddress address;
-
+
AvahiSRecordBrowser *record_browser;
AvahiSAddressResolverCallback callback;
static void finish(AvahiSAddressResolver *r, AvahiResolverEvent event) {
assert(r);
-
+
if (r->time_event) {
avahi_time_event_free(r->time_event);
r->time_event = NULL;
}
switch (event) {
- case AVAHI_RESOLVER_NOT_FOUND:
- case AVAHI_RESOLVER_TIMEOUT:
case AVAHI_RESOLVER_FAILURE:
r->callback(r, r->interface, r->protocol, event, &r->address, NULL, r->flags, r->userdata);
break;
static void time_event_callback(AvahiTimeEvent *e, void *userdata) {
AvahiSAddressResolver *r = userdata;
-
+
assert(e);
assert(r);
- finish(r, AVAHI_RESOLVER_TIMEOUT);
+ avahi_server_set_errno(r->server, AVAHI_ERR_TIMEOUT);
+ finish(r, AVAHI_RESOLVER_FAILURE);
}
static void start_timeout(AvahiSAddressResolver *r) {
AvahiRecord *record,
AvahiLookupResultFlags flags,
void* userdata) {
-
+
AvahiSAddressResolver *r = userdata;
assert(rr);
assert(r);
-
switch (event) {
- case AVAHI_BROWSER_NEW:
+ case AVAHI_BROWSER_NEW:
assert(record);
assert(record->key->type == AVAHI_DNS_TYPE_PTR);
-
+
if (r->interface > 0 && interface != r->interface)
return;
-
+
if (r->protocol != AVAHI_PROTO_UNSPEC && protocol != r->protocol)
return;
-
+
if (r->interface <= 0)
r->interface = interface;
-
+
if (r->protocol == AVAHI_PROTO_UNSPEC)
r->protocol = protocol;
-
+
if (!r->ptr_record) {
r->ptr_record = avahi_record_ref(record);
r->flags = flags;
-
+
finish(r, AVAHI_RESOLVER_FOUND);
}
break;
-
+
case AVAHI_BROWSER_REMOVE:
assert(record);
assert(record->key->type == AVAHI_DNS_TYPE_PTR);
-
+
if (r->ptr_record && avahi_record_equal_no_ttl(record, r->ptr_record)) {
avahi_record_unref(r->ptr_record);
r->ptr_record = NULL;
r->flags = flags;
-
+
/** Look for a replacement */
avahi_s_record_browser_restart(r->record_browser);
start_timeout(r);
}
break;
-
+
case AVAHI_BROWSER_CACHE_EXHAUSTED:
case AVAHI_BROWSER_ALL_FOR_NOW:
break;
- case AVAHI_BROWSER_NOT_FOUND:
+ case AVAHI_BROWSER_FAILURE:
if (r->retry_with_multicast) {
r->retry_with_multicast = 0;
}
}
- /* Fallthrough */
-
- case AVAHI_BROWSER_FAILURE:
r->flags = flags;
- finish(r, event == AVAHI_BROWSER_NOT_FOUND ? AVAHI_RESOLVER_NOT_FOUND : AVAHI_RESOLVER_FAILURE);
-
+ finish(r, AVAHI_RESOLVER_FAILURE);
+ break;
}
}
AvahiLookupFlags flags,
AvahiSAddressResolverCallback callback,
void* userdata) {
-
+
AvahiSAddressResolver *r;
AvahiKey *k;
- char *n;
+ char n[AVAHI_DOMAIN_NAME_MAX];
assert(server);
assert(address);
assert(callback);
- assert(address->proto == AVAHI_PROTO_INET || address->proto == AVAHI_PROTO_INET6);
-
- if (!AVAHI_IF_VALID(interface)) {
- avahi_server_set_errno(server, AVAHI_ERR_INVALID_INTERFACE);
- return NULL;
- }
-
- if (!AVAHI_VALID_FLAGS(flags, AVAHI_LOOKUP_USE_WIDE_AREA|AVAHI_LOOKUP_USE_MULTICAST)) {
- avahi_server_set_errno(server, AVAHI_ERR_INVALID_FLAGS);
- return NULL;
- }
-
- if (address->proto == AVAHI_PROTO_INET)
- n = avahi_reverse_lookup_name_ipv4(&address->data.ipv4);
- else
- n = avahi_reverse_lookup_name_ipv6_arpa(&address->data.ipv6);
-
- if (!n) {
- avahi_server_set_errno(server, AVAHI_ERR_NO_MEMORY);
- return NULL;
- }
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(server, AVAHI_IF_VALID(interface), AVAHI_ERR_INVALID_INTERFACE);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(server, AVAHI_PROTO_VALID(protocol), AVAHI_ERR_INVALID_PROTOCOL);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(server, address->proto == AVAHI_PROTO_INET || address->proto == AVAHI_PROTO_INET6, AVAHI_ERR_INVALID_PROTOCOL);
+ AVAHI_CHECK_VALIDITY_RETURN_NULL(server, AVAHI_FLAGS_VALID(flags, AVAHI_LOOKUP_USE_WIDE_AREA|AVAHI_LOOKUP_USE_MULTICAST), AVAHI_ERR_INVALID_FLAGS);
- k = avahi_key_new(n, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_PTR);
- avahi_free(n);
+ avahi_reverse_lookup_name(address, n, sizeof(n));
- if (!k) {
+ if (!(k = avahi_key_new(n, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_PTR))) {
avahi_server_set_errno(server, AVAHI_ERR_NO_MEMORY);
return NULL;
}
avahi_key_unref(k);
return NULL;
}
-
+
r->server = server;
r->address = *address;
r->callback = callback;
r->retry_with_multicast = 1;
}
}
-
+
r->record_browser = avahi_s_record_browser_new(server, interface, protocol, k, flags, record_browser_callback, r);
if (!r->record_browser) {
}
start_timeout(r);
-
+
return r;
}
if (r->key)
avahi_key_unref(r->key);
-
+
avahi_free(r);
}