* Disable debug output of avahi-client

[catta] / examples / client-browse-services.c

diff --git a/examples/client-browse-services.c b/examples/client-browse-services.c
new file mode 100644 (file)
index 0000000..80fa934
--- /dev/null
+++ b/examples/client-browse-services.c
@@ -0,0 +1,164 @@
+/* $Id$ */
+
+/***
+  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 <stdio.h>
+#include <assert.h>
+#include <stdlib.h>
+#include <time.h>
+
+#include <avahi-client/client.h>
+#include <avahi-common/simple-watch.h>
+#include <avahi-common/malloc.h>
+#include <avahi-common/error.h>
+
+static AvahiSimplePoll *simple_poll = NULL;
+
+static void resolve_callback(
+    AvahiServiceResolver *r,
+    AvahiIfIndex interface,
+    AvahiProtocol protocol,
+    AvahiResolverEvent event,
+    const char *name,
+    const char *type,
+    const char *domain,
+    const char *host_name,
+    const AvahiAddress *address,
+    uint16_t port,
+    AvahiStringList *txt,
+    void* userdata) {
+
+    assert(r);
+
+    /* Called whenever a service has been resolved successfully or timed out */
+
+    if (event == AVAHI_RESOLVER_TIMEOUT)
+        fprintf(stderr, "Failed to resolve service '%s' of type '%s' in domain '%s'.\n", name, type, domain);
+    else {
+        char a[128], *t;
+
+        assert(event == AVAHI_RESOLVER_FOUND);
+        
+        fprintf(stderr, "Service '%s' of type '%s' in domain '%s':\n", name, type, domain);
+
+        avahi_address_snprint(a, sizeof(a), address);
+        t = avahi_string_list_to_string(txt);
+        fprintf(stderr, "\t%s:%u (%s) TXT=%s\n", host_name, port, a, t);
+        avahi_free(t);
+    }
+
+    avahi_service_resolver_free(r);
+}
+
+static void browse_callback(
+    AvahiServiceBrowser *b,
+    AvahiIfIndex interface,
+    AvahiProtocol protocol,
+    AvahiBrowserEvent event,
+    const char *name,
+    const char *type,
+    const char *domain,
+    void* userdata) {
+    
+    AvahiClient *c = userdata;
+    assert(b);
+
+    /* Called whenever a new services becomes available on the LAN or is removed from the LAN */
+
+    fprintf(stderr, "%s: service '%s' of type '%s' in domain '%s'\n",
+            event == AVAHI_BROWSER_NEW ? "NEW" : "REMOVED",
+            name,
+            type,
+            domain);
+    
+    /* If it's new, let's resolve it */
+    if (event == AVAHI_BROWSER_NEW)
+        
+        /* We ignore the returned resolver object. In the callback function
+        we free it. If the server is terminated before the callback
+        function is called the server will free the resolver for us. */
+
+        if (!(avahi_service_resolver_new(c, interface, protocol, name, type, domain, AVAHI_PROTO_UNSPEC, resolve_callback, c)))
+            fprintf(stderr, "Failed to resolve service '%s': %s\n", name, avahi_strerror(avahi_client_errno(c)));
+}
+
+static void client_callback(AvahiClient *c, AvahiClientState state, void * userdata) {
+    assert(c);
+
+    /* Called whenever the client or server state changes */
+
+    if (state == AVAHI_CLIENT_DISCONNECTED) {
+        fprintf(stderr, "Server connection terminated.\n");
+        avahi_simple_poll_quit(simple_poll);
+    }
+}
+
+int main(int argc, char*argv[]) {
+    AvahiClient *client = NULL;
+    AvahiServiceBrowser *sb;
+    int error;
+    int ret = 1;
+
+    /* Allocate main loop object */
+    if (!(simple_poll = avahi_simple_poll_new())) {
+        fprintf(stderr, "Failed to create simple poll object.\n");
+        goto fail;
+    }
+
+    /* Allocate a new client */
+    client = avahi_client_new(avahi_simple_poll_get(simple_poll), client_callback, NULL, &error);
+
+    /* Check wether creating the client object succeeded */
+    if (!client) {
+        fprintf(stderr, "Failed to create client: %s\n", avahi_strerror(error));
+        goto fail;
+    }
+    
+    /* Create the service browser */
+    if (!(sb = avahi_service_browser_new(client, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, "_http._tcp", NULL, browse_callback, client))) {
+        fprintf(stderr, "Failed to create service browser: %s\n", avahi_strerror(avahi_client_errno(client)));
+        goto fail;
+    }
+    
+    /* Run the main loop */
+    for (;;)
+        if (avahi_simple_poll_iterate(simple_poll, -1) != 0)
+            break;
+    
+    ret = 0;
+    
+fail:
+    
+    /* Cleanup things */
+    if (sb)
+        avahi_service_browser_free(sb);
+    
+    if (client)
+        avahi_client_free(client);
+
+    if (simple_poll)
+        avahi_simple_poll_free(simple_poll);
+
+    return ret;
+}