diff options
Diffstat (limited to 'trunk/avahi-core/browse-domain.c')
-rw-r--r-- | trunk/avahi-core/browse-domain.c | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/trunk/avahi-core/browse-domain.c b/trunk/avahi-core/browse-domain.c deleted file mode 100644 index 0043806..0000000 --- a/trunk/avahi-core/browse-domain.c +++ /dev/null @@ -1,237 +0,0 @@ -/* $Id$ */ - -/*** - 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 <stdlib.h> - -#include <avahi-common/domain.h> -#include <avahi-common/malloc.h> -#include <avahi-common/error.h> - -#include "browse.h" -#include "log.h" - -struct AvahiSDomainBrowser { - int ref; - - AvahiServer *server; - - AvahiSRecordBrowser *record_browser; - - AvahiDomainBrowserType type; - AvahiSDomainBrowserCallback callback; - void* userdata; - - AvahiTimeEvent *defer_event; - - int all_for_now_scheduled; - - AVAHI_LLIST_FIELDS(AvahiSDomainBrowser, browser); -}; - -static void inc_ref(AvahiSDomainBrowser *b) { - assert(b); - assert(b->ref >= 1); - - b->ref++; -} - -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 (event == AVAHI_BROWSER_ALL_FOR_NOW && - b->defer_event) { - - b->all_for_now_scheduled = 1; - return; - } - - /* Filter flags */ - flags &= AVAHI_LOOKUP_RESULT_CACHED | AVAHI_LOOKUP_RESULT_MULTICAST | AVAHI_LOOKUP_RESULT_WIDE_AREA; - - if (record) { - assert(record->key->type == AVAHI_DNS_TYPE_PTR); - n = record->data.ptr.name; - - if (b->type == AVAHI_DOMAIN_BROWSER_BROWSE) { - AvahiStringList *l; - - /* Filter out entries defined statically */ - - for (l = b->server->config.browse_domains; l; l = l->next) - if (avahi_domain_equal((char*) l->text, n)) - return; - } - - } - - b->callback(b, interface, protocol, event, n, flags, b->userdata); -} - -static void defer_callback(AvahiTimeEvent *e, void *userdata) { - AvahiSDomainBrowser *b = userdata; - AvahiStringList *l; - - assert(e); - assert(b); - - assert(b->type == AVAHI_DOMAIN_BROWSER_BROWSE); - - avahi_time_event_free(b->defer_event); - b->defer_event = NULL; - - /* Increase ref counter */ - inc_ref(b); - - for (l = b->server->config.browse_domains; l; l = l->next) { - - /* Check whether this object still exists outside our own - * stack frame */ - if (b->ref <= 1) - break; - - b->callback(b, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, AVAHI_BROWSER_NEW, (char*) l->text, AVAHI_LOOKUP_RESULT_STATIC, b->userdata); - } - - if (b->ref > 1) { - /* If the ALL_FOR_NOW event has already been scheduled, execute it now */ - - if (b->all_for_now_scheduled) - b->callback(b, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, AVAHI_BROWSER_ALL_FOR_NOW, NULL, 0, b->userdata); - } - - /* Decrease ref counter */ - avahi_s_domain_browser_free(b); -} - -AvahiSDomainBrowser *avahi_s_domain_browser_new( - AvahiServer *server, - AvahiIfIndex interface, - AvahiProtocol protocol, - const char *domain, - AvahiDomainBrowserType type, - AvahiLookupFlags flags, - AvahiSDomainBrowserCallback callback, - void* userdata) { - - static const char * const type_table[AVAHI_DOMAIN_BROWSER_MAX] = { - "b", - "db", - "r", - "dr", - "lb" - }; - - AvahiSDomainBrowser *b; - AvahiKey *k = NULL; - char n[AVAHI_DOMAIN_NAME_MAX]; - int r; - - assert(server); - assert(callback); - - 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, type < AVAHI_DOMAIN_BROWSER_MAX, AVAHI_ERR_INVALID_FLAGS); - AVAHI_CHECK_VALIDITY_RETURN_NULL(server, !domain || avahi_is_valid_domain_name(domain), AVAHI_ERR_INVALID_DOMAIN_NAME); - AVAHI_CHECK_VALIDITY_RETURN_NULL(server, AVAHI_FLAGS_VALID(flags, AVAHI_LOOKUP_USE_WIDE_AREA|AVAHI_LOOKUP_USE_MULTICAST), AVAHI_ERR_INVALID_FLAGS); - - if (!domain) - domain = server->domain_name; - - if ((r = avahi_service_name_join(n, sizeof(n), type_table[type], "_dns-sd._udp", domain)) < 0) { - avahi_server_set_errno(server, r); - return NULL; - } - - if (!(b = avahi_new(AvahiSDomainBrowser, 1))) { - avahi_server_set_errno(server, AVAHI_ERR_NO_MEMORY); - return NULL; - } - - b->ref = 1; - b->server = server; - b->callback = callback; - b->userdata = userdata; - b->record_browser = NULL; - b->type = type; - b->all_for_now_scheduled = 0; - b->defer_event = NULL; - - AVAHI_LLIST_PREPEND(AvahiSDomainBrowser, browser, server->domain_browsers, b); - - if (!(k = avahi_key_new(n, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_PTR))) { - avahi_server_set_errno(server, AVAHI_ERR_NO_MEMORY); - goto fail; - } - - if (!(b->record_browser = avahi_s_record_browser_new(server, interface, protocol, k, flags, record_browser_callback, b))) - goto fail; - - avahi_key_unref(k); - - if (type == AVAHI_DOMAIN_BROWSER_BROWSE && b->server->config.browse_domains) - b->defer_event = avahi_time_event_new(server->time_event_queue, NULL, defer_callback, b); - - return b; - -fail: - - if (k) - avahi_key_unref(k); - - avahi_s_domain_browser_free(b); - - return NULL; -} - -void avahi_s_domain_browser_free(AvahiSDomainBrowser *b) { - assert(b); - - assert(b->ref >= 1); - if (--b->ref > 0) - return; - - AVAHI_LLIST_REMOVE(AvahiSDomainBrowser, browser, b->server->domain_browsers, b); - - if (b->record_browser) - avahi_s_record_browser_free(b->record_browser); - - if (b->defer_event) - avahi_time_event_free(b->defer_event); - - avahi_free(b); -} |