]> git.meshlink.io Git - catta/blobdiff - avahi-client/client.c
add new client state AVAHI_CLIENT_FAILURE
[catta] / avahi-client / client.c
index 837d237bcf9a1721bc3947e975815205f7370c0d..d4faed039ffbe551a017610a92bcc8012b84047a 100644 (file)
@@ -62,14 +62,15 @@ static void client_set_state (AvahiClient *client, AvahiServerState state) {
 
     switch (client->state) {
         case AVAHI_CLIENT_DISCONNECTED:
+        case AVAHI_CLIENT_FAILURE:
             if (client->bus) {
                 dbus_connection_disconnect(client->bus);
                 dbus_connection_unref(client->bus);
                 client->bus = NULL;
             }
-
+            
             /* Fall through */
-
+            
         case AVAHI_CLIENT_S_COLLISION:
         case AVAHI_CLIENT_S_REGISTERING:
 
@@ -83,7 +84,6 @@ static void client_set_state (AvahiClient *client, AvahiServerState state) {
             client->domain_name = NULL;
             break;
 
-        case AVAHI_CLIENT_S_INVALID:
         case AVAHI_CLIENT_S_RUNNING:
             break;
             
@@ -118,12 +118,12 @@ static DBusHandlerResult filter_func(DBusConnection *bus, DBusMessage *message,
     } if (dbus_message_is_signal(message, DBUS_INTERFACE_DBUS, "NameOwnerChanged")) {
         char *name, *old, *new;
         
-        if (!(dbus_message_get_args(
+        if (!dbus_message_get_args(
                   message, &error,
                   DBUS_TYPE_STRING, &name,
                   DBUS_TYPE_STRING, &old,
                   DBUS_TYPE_STRING, &new,
-                  DBUS_TYPE_INVALID) || dbus_error_is_set (&error))) {
+                  DBUS_TYPE_INVALID) || dbus_error_is_set (&error)) {
 
             fprintf(stderr, "WARNING: Failed to parse NameOwnerChanged signal: %s\n", error.message);
             goto fail;
@@ -139,15 +139,21 @@ static DBusHandlerResult filter_func(DBusConnection *bus, DBusMessage *message,
 
     } else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_SERVER, "StateChanged")) {
         int32_t state;
+        char *e = NULL;
+        int c;
         
-        if (!(dbus_message_get_args(
+        if (!dbus_message_get_args(
                   message, &error,
                   DBUS_TYPE_INT32, &state,
-                  DBUS_TYPE_INVALID) || dbus_error_is_set (&error))) {
+                  DBUS_TYPE_STRING, &e,
+                  DBUS_TYPE_INVALID) || dbus_error_is_set (&error)) {
             fprintf(stderr, "WARNING: Failed to parse Server.StateChanged signal: %s\n", error.message);
             goto fail;
         }
-            
+
+        if ((c = avahi_error_dbus_to_number(e)) != AVAHI_OK)
+            avahi_client_set_errno(client, c);
+        
         client_set_state(client, (AvahiClientState) state);
 
     } else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "StateChanged")) {
@@ -161,11 +167,21 @@ static DBusHandlerResult filter_func(DBusConnection *bus, DBusMessage *message,
         
         if (g) {
             int32_t state;
-            if (!(dbus_message_get_args (message, &error, DBUS_TYPE_INT32, &state, DBUS_TYPE_INVALID)) ||
+            char *e;
+            int c;
+            
+            if (!dbus_message_get_args(
+                      message, &error,
+                      DBUS_TYPE_INT32, &state,
+                      DBUS_TYPE_STRING, &e,
+                      DBUS_TYPE_INVALID) ||
                 dbus_error_is_set(&error)) {
                 fprintf(stderr, "WARNING: Failed to parse EntryGroup.StateChanged signal: %s\n", error.message);
                 goto fail;
             }
+
+            if ((c = avahi_error_dbus_to_number(e)) != AVAHI_OK)
+                avahi_client_set_errno(client, c);
             
             avahi_entry_group_set_state(g, state);
         }
@@ -174,17 +190,50 @@ static DBusHandlerResult filter_func(DBusConnection *bus, DBusMessage *message,
         return avahi_domain_browser_event(client, AVAHI_BROWSER_NEW, message);
     else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "ItemRemove")) 
         return avahi_domain_browser_event(client, AVAHI_BROWSER_REMOVE, message);
+    else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "CacheExhausted")) 
+        return avahi_domain_browser_event(client, AVAHI_BROWSER_CACHE_EXHAUSTED, message);
+    else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "AllForNow")) 
+        return avahi_domain_browser_event(client, AVAHI_BROWSER_ALL_FOR_NOW, message);
+    else if (dbus_message_is_signal (message, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "Failure")) 
+        return avahi_domain_browser_event(client, AVAHI_BROWSER_FAILURE, message);
 
     else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "ItemNew")) 
         return avahi_service_type_browser_event (client, AVAHI_BROWSER_NEW, message);
     else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "ItemRemove")) 
         return avahi_service_type_browser_event (client, AVAHI_BROWSER_REMOVE, message);
+    else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "CacheExhausted")) 
+        return avahi_service_type_browser_event (client, AVAHI_BROWSER_CACHE_EXHAUSTED, message);
+    else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "AllForNow")) 
+        return avahi_service_type_browser_event (client, AVAHI_BROWSER_ALL_FOR_NOW, message);
+    else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "Failure")) 
+        return avahi_service_type_browser_event (client, AVAHI_BROWSER_FAILURE, message);
 
     else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "ItemNew")) 
         return avahi_service_browser_event (client, AVAHI_BROWSER_NEW, message);
     else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "ItemRemove")) 
         return avahi_service_browser_event (client, AVAHI_BROWSER_REMOVE, message);
-
+    else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "CacheExhausted")) 
+        return avahi_service_browser_event (client, AVAHI_BROWSER_CACHE_EXHAUSTED, message);
+    else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "AllForNow")) 
+        return avahi_service_browser_event (client, AVAHI_BROWSER_ALL_FOR_NOW, message);
+    else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "Failure")) 
+        return avahi_service_browser_event (client, AVAHI_BROWSER_FAILURE, message);
+
+    else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_RESOLVER, "Found")) 
+        return avahi_service_resolver_event (client, AVAHI_RESOLVER_FOUND, message);
+    else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_SERVICE_RESOLVER, "Failure")) 
+        return avahi_service_resolver_event (client, AVAHI_RESOLVER_FAILURE, message);
+
+    else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_HOST_NAME_RESOLVER, "Found")) 
+        return avahi_host_name_resolver_event (client, AVAHI_RESOLVER_FOUND, message);
+    else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_HOST_NAME_RESOLVER, "Failure")) 
+        return avahi_host_name_resolver_event (client, AVAHI_RESOLVER_FAILURE, message);
+
+    else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_ADDRESS_RESOLVER, "Found")) 
+        return avahi_address_resolver_event (client, AVAHI_RESOLVER_FOUND, message);
+    else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_ADDRESS_RESOLVER, "Failure")) 
+        return avahi_address_resolver_event (client, AVAHI_RESOLVER_FAILURE, message);
+    
     return DBUS_HANDLER_RESULT_HANDLED;
 
 fail:
@@ -194,10 +243,10 @@ fail:
 }
 
 static int get_server_state(AvahiClient *client, int *ret_error) {
-    DBusMessage *message, *reply;
+    DBusMessage *message = NULL, *reply = NULL;
     DBusError error;
     int32_t state;
-    int e;
+    int e = AVAHI_ERR_NO_MEMORY;
     
     assert(client);
 
@@ -207,38 +256,95 @@ static int get_server_state(AvahiClient *client, int *ret_error) {
         goto fail;
 
     reply = dbus_connection_send_with_reply_and_block (client->bus, message, -1, &error);
-    dbus_message_unref(message);
 
-    if (!reply)
+    if (!reply || dbus_error_is_set (&error))
         goto fail;
 
-    if (!(dbus_message_get_args(reply, &error, DBUS_TYPE_INT32, &state, DBUS_TYPE_INVALID)))
+    if (!dbus_message_get_args(reply, &error, DBUS_TYPE_INT32, &state, DBUS_TYPE_INVALID) ||
+        dbus_error_is_set (&error))
         goto fail;
 
     client_set_state(client, (AvahiServerState) state);
 
+    dbus_message_unref(message);
+    dbus_message_unref(reply);
+    
     return AVAHI_OK;
 
 fail:
     if (dbus_error_is_set(&error)) {
         e = avahi_error_dbus_to_number (error.name);
         dbus_error_free(&error);
-    } else
-        e = AVAHI_ERR_NO_MEMORY;
+    } 
+    
+    if (ret_error)
+        *ret_error = e;
+
+    if (message)
+        dbus_message_unref(message);
+    if (reply)
+        dbus_message_unref(reply);
+    
+    return e;
+}
+
+static int check_version(AvahiClient *client, int *ret_error) {
+    DBusMessage *message = NULL, *reply  = NULL;
+    DBusError error;
+    char *version;
+    int e = AVAHI_ERR_NO_MEMORY;
+    
+    assert(client);
+
+    dbus_error_init(&error);
+
+    if (!(message = dbus_message_new_method_call(AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "GetVersionString")))
+        goto fail;
+
+    reply = dbus_connection_send_with_reply_and_block (client->bus, message, -1, &error);
+
+    if (!reply || dbus_error_is_set (&error))
+        goto fail;
+
+    if (!dbus_message_get_args (reply, &error, DBUS_TYPE_STRING, &version, DBUS_TYPE_INVALID) ||
+        dbus_error_is_set (&error))
+        goto fail;
+
+    if (strcmp(version, PACKAGE_STRING) != 0) {
+        e = AVAHI_ERR_VERSION_MISMATCH;
+        goto fail;
+    }
+
+    dbus_message_unref(message);
+    dbus_message_unref(reply);
+               
+    return AVAHI_OK;
+
+fail:
+    if (dbus_error_is_set(&error)) {
+        e = avahi_error_dbus_to_number (error.name);
+        dbus_error_free(&error);
+    } 
 
     if (ret_error)
         *ret_error = e;
-        
+
+    if (message)
+        dbus_message_unref(message);
+    if (reply)
+        dbus_message_unref(reply);
+    
     return e;
 }
 
+
 /* This function acts like dbus_bus_get but creates a private
  * connection instead */
 static DBusConnection*
 avahi_dbus_bus_get (DBusError *error)
 {
     DBusConnection *conn;
-    char *env_addr;
+    const char *env_addr;
 
     env_addr = getenv ("DBUS_SYSTEM_BUS_ADDRESS");
 
@@ -287,12 +393,15 @@ AvahiClient *avahi_client_new(const AvahiPoll *poll_api, AvahiClientCallback cal
     client->host_name_fqdn = NULL;
     client->domain_name = NULL;
     client->version_string = NULL;
-
+    client->local_service_cookie_valid = 0;
+    
     AVAHI_LLIST_HEAD_INIT(AvahiEntryGroup, client->groups);
     AVAHI_LLIST_HEAD_INIT(AvahiDomainBrowser, client->domain_browsers);
     AVAHI_LLIST_HEAD_INIT(AvahiServiceBrowser, client->service_browsers);
     AVAHI_LLIST_HEAD_INIT(AvahiServiceTypeBrowser, client->service_type_browsers);
     AVAHI_LLIST_HEAD_INIT(AvahiServiceResolver, client->service_resolvers);
+    AVAHI_LLIST_HEAD_INIT(AvahiHostNameResolver, client->host_name_resolvers);
+    AVAHI_LLIST_HEAD_INIT(AvahiAddressResolver, client->address_resolvers);
 
     if (!(client->bus = avahi_dbus_bus_get(&error)) ||
         dbus_error_is_set (&error))
@@ -344,12 +453,19 @@ AvahiClient *avahi_client_new(const AvahiPoll *poll_api, AvahiClientCallback cal
     if (!(dbus_bus_name_has_owner(client->bus, AVAHI_DBUS_NAME, &error)) ||
         dbus_error_is_set(&error)) {
 
+        /* We free the error so its not set, that way the fail target
+         * will return the NO_DAEMON error rather than a DBUS error */
+        dbus_error_free (&error);
+
         if (ret_error)
             *ret_error = AVAHI_ERR_NO_DAEMON;
         
         goto fail;
     }
 
+    if (check_version(client, ret_error) < 0)
+        goto fail;
+
     if (get_server_state(client, ret_error) < 0)
         goto fail;
 
@@ -525,3 +641,103 @@ int avahi_client_errno(AvahiClient *client) {
     
     return client->error;
 }
+
+/* Just for internal use */
+int avahi_client_simple_method_call(AvahiClient *client, const char *path, const char *interface, const char *method) {
+    DBusMessage *message = NULL, *reply = NULL;
+    DBusError error;
+    int r = AVAHI_OK;
+    
+    dbus_error_init(&error);
+
+    assert(client);
+    assert(path);
+    assert(interface);
+    assert(method);
+    
+    if (!(message = dbus_message_new_method_call(AVAHI_DBUS_NAME, path, interface, method))) {
+        r = avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
+        goto fail;
+    }
+        
+    if (!(reply = dbus_connection_send_with_reply_and_block(client->bus, message, -1, &error)) ||
+        dbus_error_is_set (&error)) {
+        r = avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR);
+        goto fail;
+    }
+    
+    if (!dbus_message_get_args(reply, &error, DBUS_TYPE_INVALID) ||
+        dbus_error_is_set (&error)) {
+        r = avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR);
+        goto fail;
+    }
+
+    dbus_message_unref(message);
+    dbus_message_unref(reply);
+
+    return AVAHI_OK;
+    
+fail:
+    if (dbus_error_is_set(&error)) {
+        r = avahi_client_set_dbus_error(client, &error);
+        dbus_error_free(&error);
+    }
+
+    if (message)
+        dbus_message_unref(message);
+
+    if (reply)
+        dbus_message_unref(reply);
+
+    return r;
+}
+
+uint32_t avahi_client_get_local_service_cookie(AvahiClient *client) {
+    DBusMessage *message = NULL, *reply = NULL;
+    DBusError error;
+    assert(client);
+
+    if (client->state == AVAHI_CLIENT_DISCONNECTED) {
+        avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE);
+        return AVAHI_SERVICE_COOKIE_INVALID;
+    }
+
+    if (client->local_service_cookie_valid)
+        return client->local_service_cookie;
+
+    dbus_error_init (&error);
+
+    if (!(message = dbus_message_new_method_call(AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "GetLocalServiceCookie"))) {
+        avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY);
+        goto fail;
+    }
+
+    reply = dbus_connection_send_with_reply_and_block (client->bus, message, -1, &error);
+
+    if (!reply || dbus_error_is_set (&error))
+        goto fail;
+
+    if (!dbus_message_get_args (reply, &error, DBUS_TYPE_UINT32, &client->local_service_cookie, DBUS_TYPE_INVALID) ||
+        dbus_error_is_set (&error))
+        goto fail;
+    
+    dbus_message_unref(message);
+    dbus_message_unref(reply);
+
+    client->local_service_cookie_valid = 1;
+    return client->local_service_cookie;
+
+fail:
+
+    if (message)
+        dbus_message_unref(message);
+    if (reply)
+        dbus_message_unref(reply);
+    
+    if (dbus_error_is_set(&error)) {
+        avahi_client_set_dbus_error(client, &error);
+        dbus_error_free(&error);
+    }
+
+    return AVAHI_SERVICE_COOKIE_INVALID;
+}