X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=avahi-client%2Fclient.c;fp=avahi-client%2Fclient.c;h=0000000000000000000000000000000000000000;hb=f1de9dcaab953757252d51b4725cbfa36daa10a5;hp=70cc35d9e9290b9ecd1878ddc295fcd60c70a4b8;hpb=7a5b2f69af7d36d6cd4153142f125fa011784e03;p=catta diff --git a/avahi-client/client.c b/avahi-client/client.c deleted file mode 100644 index 70cc35d..0000000 --- a/avahi-client/client.c +++ /dev/null @@ -1,958 +0,0 @@ -/*** - 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 -#endif - -#include -#include -#include - -#include - -#include -#include -#include -#include -#include -#include -#include - -#include "client.h" -#include "internal.h" - -#define AVAHI_CLIENT_DBUS_API_SUPPORTED ((uint32_t) 0x0201) - -static int init_server(AvahiClient *client, int *ret_error); - -int avahi_client_set_errno (AvahiClient *client, int error) { - assert(client); - - return client->error = error; -} - -int avahi_client_set_dbus_error(AvahiClient *client, DBusError *error) { - assert(client); - assert(error); - - return avahi_client_set_errno(client, avahi_error_dbus_to_number(error->name)); -} - -static void client_set_state(AvahiClient *client, AvahiClientState state) { - assert(client); - - if (client->state == state) - return; - - client->state = state; - - switch (client->state) { - case AVAHI_CLIENT_FAILURE: - if (client->bus) { -#ifdef HAVE_DBUS_CONNECTION_CLOSE - dbus_connection_close(client->bus); -#else - dbus_connection_disconnect(client->bus); -#endif - dbus_connection_unref(client->bus); - client->bus = NULL; - } - - /* Fall through */ - - case AVAHI_CLIENT_S_COLLISION: - case AVAHI_CLIENT_S_REGISTERING: - - /* Clear cached strings */ - avahi_free(client->host_name); - avahi_free(client->host_name_fqdn); - avahi_free(client->domain_name); - - client->host_name = NULL; - client->host_name_fqdn = NULL; - client->domain_name = NULL; - break; - - case AVAHI_CLIENT_S_RUNNING: - case AVAHI_CLIENT_CONNECTING: - break; - - } - - if (client->callback) - client->callback (client, state, client->userdata); -} - -static DBusHandlerResult filter_func(DBusConnection *bus, DBusMessage *message, void *userdata) { - AvahiClient *client = userdata; - DBusError error; - - assert(bus); - assert(message); - - dbus_error_init(&error); - -/* fprintf(stderr, "dbus: interface=%s, path=%s, member=%s\n", */ -/* dbus_message_get_interface (message), */ -/* dbus_message_get_path (message), */ -/* dbus_message_get_member (message)); */ - - if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) { - - /* The DBUS server died or kicked us */ - avahi_client_set_errno(client, AVAHI_ERR_DISCONNECTED); - goto fail; - - } else if (dbus_message_is_signal(message, DBUS_INTERFACE_DBUS, "NameAcquired")) { - - /* Ignore this message */ - - } else if (dbus_message_is_signal(message, DBUS_INTERFACE_DBUS, "NameOwnerChanged")) { - char *name, *old, *new; - - 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)) { - - fprintf(stderr, "WARNING: Failed to parse NameOwnerChanged signal: %s\n", error.message); - avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR); - goto fail; - } - - if (strcmp(name, AVAHI_DBUS_NAME) == 0) { - - if (old[0] && - avahi_client_is_connected(client)) { - - /* Regardless if the server lost its name or - * if the name was transfered: our services are no longer - * available, so we disconnect ourselves */ - avahi_client_set_errno(client, AVAHI_ERR_DISCONNECTED); - goto fail; - - } else if (client->state == AVAHI_CLIENT_CONNECTING && (!old || *old == 0)) { - int ret; - - /* Server appeared */ - - if ((ret = init_server(client, NULL)) < 0) { - avahi_client_set_errno(client, ret); - goto fail; - } - } - } - - } else if (!avahi_client_is_connected(client)) { - - /* Ignore messages we get in unconnected state */ - - } 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( - message, &error, - DBUS_TYPE_INT32, &state, - 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); - avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR); - 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")) { - const char *path; - AvahiEntryGroup *g; - path = dbus_message_get_path(message); - - for (g = client->groups; g; g = g->groups_next) - if (strcmp(g->path, path) == 0) - break; - - if (g) { - int32_t state; - 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); - avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR); - 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); - } - - } else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "ItemNew")) - 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); - - else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_RECORD_BROWSER, "ItemNew")) - return avahi_record_browser_event (client, AVAHI_BROWSER_NEW, message); - else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_RECORD_BROWSER, "ItemRemove")) - return avahi_record_browser_event (client, AVAHI_BROWSER_REMOVE, message); - else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_RECORD_BROWSER, "CacheExhausted")) - return avahi_record_browser_event (client, AVAHI_BROWSER_CACHE_EXHAUSTED, message); - else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_RECORD_BROWSER, "AllForNow")) - return avahi_record_browser_event (client, AVAHI_BROWSER_ALL_FOR_NOW, message); - else if (dbus_message_is_signal(message, AVAHI_DBUS_INTERFACE_RECORD_BROWSER, "Failure")) - return avahi_record_browser_event (client, AVAHI_BROWSER_FAILURE, message); - - else { - - fprintf(stderr, "WARNING: Unhandled message: interface=%s, path=%s, member=%s\n", - dbus_message_get_interface(message), - dbus_message_get_path(message), - dbus_message_get_member(message)); - - return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; - } - - return DBUS_HANDLER_RESULT_HANDLED; - -fail: - - if (dbus_error_is_set(&error)) { - avahi_client_set_errno(client, avahi_error_dbus_to_number(error.name)); - dbus_error_free(&error); - } - - client_set_state(client, AVAHI_CLIENT_FAILURE); - - return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; -} - -static int get_server_state(AvahiClient *client, int *ret_error) { - DBusMessage *message = NULL, *reply = NULL; - DBusError error; - int32_t state; - 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, "GetState"))) - 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_INT32, &state, DBUS_TYPE_INVALID) || - dbus_error_is_set (&error)) - goto fail; - - client_set_state(client, (AvahiClientState) 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); - } - - 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; - uint32_t 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, "GetAPIVersion"))) - goto fail; - - reply = dbus_connection_send_with_reply_and_block (client->bus, message, -1, &error); - - if (!reply || dbus_error_is_set (&error)) { - char *version_str; - - if (!dbus_error_is_set(&error) || strcmp(error.name, DBUS_ERROR_UNKNOWN_METHOD)) - goto fail; - - /* If the method GetAPIVersion is not known, we look if - * GetVersionString matches "avahi 0.6" which is the only - * version we support which doesn't have GetAPIVersion() .*/ - - dbus_message_unref(message); - if (reply) dbus_message_unref(reply); - dbus_error_free(&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_str, DBUS_TYPE_INVALID) || - dbus_error_is_set (&error)) - goto fail; - - version = strcmp(version_str, "avahi 0.6") == 0 ? 0x0201 : 0x0000; - - } else { - - if (!dbus_message_get_args (reply, &error, DBUS_TYPE_UINT32, &version, DBUS_TYPE_INVALID) || - dbus_error_is_set(&error)) - goto fail; - } - - /*fprintf(stderr, "API Version 0x%04x\n", version);*/ - - if ((version & 0xFF00) != (AVAHI_CLIENT_DBUS_API_SUPPORTED & 0xFF00) || - (version & 0x00FF) < (AVAHI_CLIENT_DBUS_API_SUPPORTED & 0x00FF)) { - 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; -} - -static int init_server(AvahiClient *client, int *ret_error) { - int r; - - if ((r = check_version(client, ret_error)) < 0) - return r; - - if ((r = get_server_state(client, ret_error)) < 0) - return r; - - return AVAHI_OK; -} - -/* This function acts like dbus_bus_get but creates a private - * connection instead. */ -static DBusConnection* avahi_dbus_bus_get(DBusError *error) { - DBusConnection *c; - -#ifdef HAVE_DBUS_BUS_GET_PRIVATE - if (!(c = dbus_bus_get_private(DBUS_BUS_SYSTEM, error))) - return NULL; - - dbus_connection_set_exit_on_disconnect(c, FALSE); -#else - const char *a; - - if (!(a = getenv("DBUS_SYSTEM_BUS_ADDRESS")) || !*a) - a = DBUS_SYSTEM_BUS_DEFAULT_ADDRESS; - - if (!(c = dbus_connection_open_private(a, error))) - return NULL; - - dbus_connection_set_exit_on_disconnect(c, FALSE); - - if (!dbus_bus_register(c, error)) { -#ifdef HAVE_DBUS_CONNECTION_CLOSE - dbus_connection_close(c); -#else - dbus_connection_disconnect(c); -#endif - dbus_connection_unref(c); - return NULL; - } -#endif - - return c; -} - -AvahiClient *avahi_client_new(const AvahiPoll *poll_api, AvahiClientFlags flags, AvahiClientCallback callback, void *userdata, int *ret_error) { - AvahiClient *client = NULL; - DBusError error; - DBusMessage *message = NULL, *reply = NULL; - - avahi_init_i18n(); - - dbus_error_init(&error); - - if (!(client = avahi_new(AvahiClient, 1))) { - if (ret_error) - *ret_error = AVAHI_ERR_NO_MEMORY; - goto fail; - } - - client->poll_api = poll_api; - client->error = AVAHI_OK; - client->callback = callback; - client->userdata = userdata; - client->state = (AvahiClientState) -1; - client->flags = flags; - - client->host_name = NULL; - 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); - AVAHI_LLIST_HEAD_INIT(AvahiRecordBrowser, client->record_browsers); - - if (!(client->bus = avahi_dbus_bus_get(&error)) || dbus_error_is_set(&error)) { - if (ret_error) - *ret_error = AVAHI_ERR_DBUS_ERROR; - goto fail; - } - - if (avahi_dbus_connection_glue(client->bus, poll_api) < 0) { - if (ret_error) - *ret_error = AVAHI_ERR_NO_MEMORY; /* Not optimal */ - goto fail; - } - - if (!dbus_connection_add_filter(client->bus, filter_func, client, NULL)) { - if (ret_error) - *ret_error = AVAHI_ERR_NO_MEMORY; - goto fail; - } - - dbus_bus_add_match( - client->bus, - "type='signal', " - "interface='" AVAHI_DBUS_INTERFACE_SERVER "', " - "sender='" AVAHI_DBUS_NAME "', " - "path='" AVAHI_DBUS_PATH_SERVER "'", - &error); - - if (dbus_error_is_set(&error)) - goto fail; - - dbus_bus_add_match ( - client->bus, - "type='signal', " - "interface='" DBUS_INTERFACE_DBUS "', " - "sender='" DBUS_SERVICE_DBUS "', " - "path='" DBUS_PATH_DBUS "'", - &error); - - if (dbus_error_is_set(&error)) - goto fail; - - dbus_bus_add_match( - client->bus, - "type='signal', " - "interface='" DBUS_INTERFACE_LOCAL "'", - &error); - - if (dbus_error_is_set(&error)) - goto fail; - - if (!(message = dbus_message_new_method_call(AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, "org.freedesktop.DBus.Peer", "Ping"))) - goto fail; - - reply = dbus_connection_send_with_reply_and_block (client->bus, message, -1, &error); - - if (!reply || 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 (!(flags & AVAHI_CLIENT_NO_FAIL)) { - - if (ret_error) - *ret_error = AVAHI_ERR_NO_DAEMON; - - goto fail; - } - - /* The user doesn't want this call to fail if the daemon is not - * available, so let's return succesfully */ - client_set_state(client, AVAHI_CLIENT_CONNECTING); - - } else { - - if (init_server(client, ret_error) < 0) - goto fail; - } - - dbus_message_unref(message); - - if (reply) - dbus_message_unref(reply); - - return client; - -fail: - - if (message) - dbus_message_unref(message); - if (reply) - dbus_message_unref(reply); - - if (client) - avahi_client_free(client); - - if (dbus_error_is_set(&error)) { - - if (ret_error) { - if (strcmp(error.name, DBUS_ERROR_FILE_NOT_FOUND) == 0) - /* DBUS returns this error when the DBUS daemon is not running */ - *ret_error = AVAHI_ERR_NO_DAEMON; - else - *ret_error = avahi_error_dbus_to_number(error.name); - } - - dbus_error_free(&error); - } - - return NULL; -} - -void avahi_client_free(AvahiClient *client) { - assert(client); - - if (client->bus) - /* Disconnect in advance, so that the free() functions won't - * issue needless server calls */ -#ifdef HAVE_DBUS_CONNECTION_CLOSE - dbus_connection_close(client->bus); -#else - dbus_connection_disconnect(client->bus); -#endif - - while (client->groups) - avahi_entry_group_free(client->groups); - - while (client->domain_browsers) - avahi_domain_browser_free(client->domain_browsers); - - while (client->service_browsers) - avahi_service_browser_free(client->service_browsers); - - while (client->service_type_browsers) - avahi_service_type_browser_free(client->service_type_browsers); - - while (client->service_resolvers) - avahi_service_resolver_free(client->service_resolvers); - - while (client->host_name_resolvers) - avahi_host_name_resolver_free(client->host_name_resolvers); - - while (client->address_resolvers) - avahi_address_resolver_free(client->address_resolvers); - - while (client->record_browsers) - avahi_record_browser_free(client->record_browsers); - - if (client->bus) - dbus_connection_unref(client->bus); - - avahi_free(client->version_string); - avahi_free(client->host_name); - avahi_free(client->host_name_fqdn); - avahi_free(client->domain_name); - - avahi_free(client); -} - -static char* avahi_client_get_string_reply_and_block (AvahiClient *client, const char *method, const char *param) { - DBusMessage *message = NULL, *reply = NULL; - DBusError error; - char *ret, *n; - - assert(client); - assert(method); - - dbus_error_init (&error); - - if (!(message = dbus_message_new_method_call (AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, method))) { - avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); - goto fail; - } - - if (param) { - if (!dbus_message_append_args (message, DBUS_TYPE_STRING, ¶m, DBUS_TYPE_INVALID)) { - 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_STRING, &ret, DBUS_TYPE_INVALID) || - dbus_error_is_set (&error)) - goto fail; - - if (!(n = avahi_strdup(ret))) { - avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); - goto fail; - } - - dbus_message_unref(message); - dbus_message_unref(reply); - - return n; - -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 NULL; -} - -const char* avahi_client_get_version_string(AvahiClient *client) { - assert(client); - - if (!avahi_client_is_connected(client)) { - avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE); - return NULL; - } - - if (!client->version_string) - client->version_string = avahi_client_get_string_reply_and_block(client, "GetVersionString", NULL); - - return client->version_string; -} - -const char* avahi_client_get_domain_name(AvahiClient *client) { - assert(client); - - if (!avahi_client_is_connected(client)) { - avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE); - return NULL; - } - - if (!client->domain_name) - client->domain_name = avahi_client_get_string_reply_and_block(client, "GetDomainName", NULL); - - return client->domain_name; -} - -const char* avahi_client_get_host_name(AvahiClient *client) { - assert(client); - - if (!avahi_client_is_connected(client)) { - avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE); - return NULL; - } - - if (!client->host_name) - client->host_name = avahi_client_get_string_reply_and_block(client, "GetHostName", NULL); - - return client->host_name; -} - -const char* avahi_client_get_host_name_fqdn (AvahiClient *client) { - assert(client); - - if (!avahi_client_is_connected(client)) { - avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE); - return NULL; - } - - if (!client->host_name_fqdn) - client->host_name_fqdn = avahi_client_get_string_reply_and_block(client, "GetHostNameFqdn", NULL); - - return client->host_name_fqdn; -} - -AvahiClientState avahi_client_get_state(AvahiClient *client) { - assert(client); - - return client->state; -} - -int avahi_client_errno(AvahiClient *client) { - assert(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 (!avahi_client_is_connected(client)) { - 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; -} - -int avahi_client_is_connected(AvahiClient *client) { - assert(client); - - return - client->bus && - dbus_connection_get_is_connected(client->bus) && - (client->state == AVAHI_CLIENT_S_RUNNING || client->state == AVAHI_CLIENT_S_REGISTERING || client->state == AVAHI_CLIENT_S_COLLISION); -} - -int avahi_client_set_host_name(AvahiClient* client, const char *name) { - DBusMessage *message = NULL, *reply = NULL; - DBusError error; - - assert(client); - - if (!avahi_client_is_connected(client)) - return avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE); - - dbus_error_init (&error); - - if (!(message = dbus_message_new_method_call (AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "SetHostName"))) { - avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); - goto fail; - } - - if (!dbus_message_append_args (message, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID)) { - 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_INVALID) || - dbus_error_is_set (&error)) - goto fail; - - dbus_message_unref(message); - dbus_message_unref(reply); - - avahi_free(client->host_name); - client->host_name = NULL; - avahi_free(client->host_name_fqdn); - client->host_name_fqdn = NULL; - - return 0; - -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 client->error; -}