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/* $Id$ */
/***
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
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <avahi-common/domain.h>
#include <avahi-common/malloc.h>
#include <avahi-common/error.h>
#include "browse.h"
struct AvahiSDomainBrowser {
AvahiServer *server;
char *domain_name;
AvahiSRecordBrowser *record_browser;
AvahiLookupResultFlags flags;
AvahiSDomainBrowserCallback callback;
void* userdata;
AVAHI_LLIST_FIELDS(AvahiSDomainBrowser, browser);
};
static void record_browser_callback(
AvahiSRecordBrowser*rr,
AvahiIfIndex interface,
AvahiProtocol protocol,
AvahiBrowserEvent event,
AvahiRecord *record,
AvahiLookupResultFlags flags,
void* userdata) {
AvahiSDomainBrowser *b = userdata;
char *n = NULL;
assert(rr);
assert(b);
if (record) {
assert(record->key->type == AVAHI_DNS_TYPE_PTR);
n = avahi_normalize_name(record->data.ptr.name);
}
b->callback(b, interface, protocol, event, n, flags, b->userdata);
avahi_free(n);
}
AvahiSDomainBrowser *avahi_s_domain_browser_new(
AvahiServer *server,
AvahiIfIndex interface,
AvahiProtocol protocol,
const char *domain,
AvahiDomainBrowserType type,
AvahiLookupFlags flags,
AvahiSDomainBrowserCallback callback,
void* userdata) {
AvahiSDomainBrowser *b;
AvahiKey *k;
char *n = NULL;
assert(server);
assert(callback);
assert(type >= AVAHI_DOMAIN_BROWSER_BROWSE && type <= AVAHI_DOMAIN_BROWSER_BROWSE_LEGACY);
if (!AVAHI_IF_VALID(interface)) {
avahi_server_set_errno(server, AVAHI_ERR_INVALID_INTERFACE);
return NULL;
}
if (domain && !avahi_is_valid_domain_name(domain)) {
avahi_server_set_errno(server, AVAHI_ERR_INVALID_DOMAIN_NAME);
return NULL;
}
if (!domain)
domain = server->domain_name;
if (!AVAHI_FLAGS_VALID(flags, AVAHI_LOOKUP_USE_WIDE_AREA|AVAHI_LOOKUP_USE_MULTICAST)) {
avahi_server_set_errno(server, AVAHI_ERR_INVALID_FLAGS);
return NULL;
}
if (!(b = avahi_new(AvahiSDomainBrowser, 1))) {
avahi_server_set_errno(server, AVAHI_ERR_NO_MEMORY);
return NULL;
}
b->server = server;
b->domain_name = avahi_normalize_name(domain);
b->callback = callback;
b->userdata = userdata;
AVAHI_LLIST_PREPEND(AvahiSDomainBrowser, browser, server->domain_browsers, b);
switch (type) {
case AVAHI_DOMAIN_BROWSER_BROWSE:
n = avahi_strdup_printf("b._dns-sd._udp.%s", b->domain_name);
break;
case AVAHI_DOMAIN_BROWSER_BROWSE_DEFAULT:
n = avahi_strdup_printf("db._dns-sd._udp.%s", b->domain_name);
break;
case AVAHI_DOMAIN_BROWSER_REGISTER:
n = avahi_strdup_printf("r._dns-sd._udp.%s", b->domain_name);
break;
case AVAHI_DOMAIN_BROWSER_REGISTER_DEFAULT:
n = avahi_strdup_printf("dr._dns-sd._udp.%s", b->domain_name);
break;
case AVAHI_DOMAIN_BROWSER_BROWSE_LEGACY:
n = avahi_strdup_printf("lb._dns-sd._udp.%s", b->domain_name);
break;
case AVAHI_DOMAIN_BROWSER_MAX:
assert(0);
break;
}
assert(n);
k = avahi_key_new(n, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_PTR);
avahi_free(n);
b->record_browser = avahi_s_record_browser_new(server, interface, protocol, k, flags, record_browser_callback, b);
avahi_key_unref(k);
if (!b->record_browser) {
avahi_s_domain_browser_free(b);
return NULL;
}
return b;
}
void avahi_s_domain_browser_free(AvahiSDomainBrowser *b) {
assert(b);
AVAHI_LLIST_REMOVE(AvahiSDomainBrowser, browser, b->server->domain_browsers, b);
if (b->record_browser)
avahi_s_record_browser_free(b->record_browser);
avahi_free(b->domain_name);
avahi_free(b);
}
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