| /*** |
| 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 <stdio.h> |
| #include <string.h> |
| |
| #include <dbus/dbus.h> |
| |
| #include <avahi-client/client.h> |
| #include <avahi-common/dbus.h> |
| #include <avahi-common/llist.h> |
| #include <avahi-common/error.h> |
| #include <avahi-common/malloc.h> |
| #include <avahi-common/domain.h> |
| |
| #include "client.h" |
| #include "internal.h" |
| #include "xdg-config.h" |
| |
| static void parse_environment(AvahiDomainBrowser *b) { |
| char buf[AVAHI_DOMAIN_NAME_MAX*3], *e, *t, *p; |
| |
| assert(b); |
| |
| if (!(e = getenv("AVAHI_BROWSE_DOMAINS"))) |
| return; |
| |
| snprintf(buf, sizeof(buf), "%s", e); |
| |
| for (t = strtok_r(buf, ":", &p); t; t = strtok_r(NULL, ":", &p)) { |
| char domain[AVAHI_DOMAIN_NAME_MAX]; |
| if (avahi_normalize_name(t, domain, sizeof(domain))) |
| b->static_browse_domains = avahi_string_list_add(b->static_browse_domains, domain); |
| } |
| } |
| |
| static void parse_domain_file(AvahiDomainBrowser *b) { |
| FILE *f; |
| char buf[AVAHI_DOMAIN_NAME_MAX]; |
| |
| assert(b); |
| |
| if (!(f = avahi_xdg_config_open("avahi/browse-domains"))) |
| return; |
| |
| |
| while (fgets(buf, sizeof(buf)-1, f)) { |
| char domain[AVAHI_DOMAIN_NAME_MAX]; |
| buf[strcspn(buf, "\n\r")] = 0; |
| |
| if (avahi_normalize_name(buf, domain, sizeof(domain))) |
| b->static_browse_domains = avahi_string_list_add(b->static_browse_domains, domain); |
| } |
| } |
| |
| static void domain_browser_ref(AvahiDomainBrowser *db) { |
| assert(db); |
| assert(db->ref >= 1); |
| db->ref++; |
| } |
| |
| static void defer_timeout_callback(AvahiTimeout *t, void *userdata) { |
| AvahiDomainBrowser *db = userdata; |
| AvahiStringList *l; |
| assert(t); |
| |
| db->client->poll_api->timeout_free(db->defer_timeout); |
| db->defer_timeout = NULL; |
| |
| domain_browser_ref(db); |
| |
| for (l = db->static_browse_domains; l; l = l->next) { |
| |
| if (db->ref <= 1) |
| break; |
| |
| db->callback(db, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, AVAHI_BROWSER_NEW, (char*) l->text, AVAHI_LOOKUP_RESULT_STATIC, db->userdata); |
| } |
| |
| avahi_domain_browser_free(db); |
| } |
| |
| AvahiDomainBrowser* avahi_domain_browser_new( |
| AvahiClient *client, |
| AvahiIfIndex interface, |
| AvahiProtocol protocol, |
| const char *domain, |
| AvahiDomainBrowserType btype, |
| AvahiLookupFlags flags, |
| AvahiDomainBrowserCallback callback, |
| void *userdata) { |
| |
| AvahiDomainBrowser *db = NULL; |
| DBusMessage *message = NULL, *reply = NULL; |
| DBusError error; |
| char *path; |
| int32_t i_interface, i_protocol, bt; |
| uint32_t u_flags; |
| |
| assert(client); |
| assert(callback); |
| |
| dbus_error_init (&error); |
| |
| if (!avahi_client_is_connected(client)) { |
| avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE); |
| goto fail; |
| } |
| |
| if (!domain) |
| domain = ""; |
| |
| if (!(db = avahi_new (AvahiDomainBrowser, 1))) { |
| avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); |
| goto fail; |
| } |
| |
| db->ref = 1; |
| db->client = client; |
| db->callback = callback; |
| db->userdata = userdata; |
| db->path = NULL; |
| db->interface = interface; |
| db->protocol = protocol; |
| db->static_browse_domains = NULL; |
| db->defer_timeout = NULL; |
| |
| AVAHI_LLIST_PREPEND(AvahiDomainBrowser, domain_browsers, client->domain_browsers, db); |
| |
| if (!(client->flags & AVAHI_CLIENT_IGNORE_USER_CONFIG)) { |
| parse_environment(db); |
| parse_domain_file(db); |
| } |
| |
| db->static_browse_domains = avahi_string_list_reverse(db->static_browse_domains); |
| |
| if (!(message = dbus_message_new_method_call (AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "DomainBrowserNew"))) { |
| avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); |
| goto fail; |
| } |
| |
| i_interface = (int32_t) interface; |
| i_protocol = (int32_t) protocol; |
| u_flags = (uint32_t) flags; |
| bt = btype; |
| |
| if (!(dbus_message_append_args( |
| message, |
| DBUS_TYPE_INT32, &i_interface, |
| DBUS_TYPE_INT32, &i_protocol, |
| DBUS_TYPE_STRING, &domain, |
| DBUS_TYPE_INT32, &bt, |
| DBUS_TYPE_UINT32, &u_flags, |
| DBUS_TYPE_INVALID))) { |
| 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)) { |
| avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR); |
| goto fail; |
| } |
| |
| if (!dbus_message_get_args (reply, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID) || |
| dbus_error_is_set(&error) || |
| !path) { |
| avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR); |
| goto fail; |
| } |
| |
| if (!(db->path = avahi_strdup(path))) { |
| |
| /* FIXME: We don't remove the object on the server side */ |
| |
| avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); |
| goto fail; |
| } |
| |
| if (db->static_browse_domains && btype == AVAHI_DOMAIN_BROWSER_BROWSE) { |
| struct timeval tv = { 0, 0 }; |
| |
| if (!(db->defer_timeout = client->poll_api->timeout_new(client->poll_api, &tv, defer_timeout_callback, db))) { |
| avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); |
| goto fail; |
| } |
| } |
| |
| dbus_message_unref(message); |
| dbus_message_unref(reply); |
| |
| return db; |
| |
| fail: |
| |
| if (dbus_error_is_set(&error)) { |
| avahi_client_set_dbus_error(client, &error); |
| dbus_error_free(&error); |
| } |
| |
| if (db) |
| avahi_domain_browser_free(db); |
| |
| if (message) |
| dbus_message_unref(message); |
| |
| if (reply) |
| dbus_message_unref(reply); |
| |
| return NULL; |
| } |
| |
| AvahiClient* avahi_domain_browser_get_client (AvahiDomainBrowser *b) { |
| assert(b); |
| return b->client; |
| } |
| |
| int avahi_domain_browser_free (AvahiDomainBrowser *b) { |
| AvahiClient *client; |
| int r = AVAHI_OK; |
| |
| assert(b); |
| assert(b->ref >= 1); |
| |
| if (--(b->ref) >= 1) |
| return AVAHI_OK; |
| |
| client = b->client; |
| |
| if (b->path && avahi_client_is_connected(b->client)) |
| r = avahi_client_simple_method_call(client, b->path, AVAHI_DBUS_INTERFACE_DOMAIN_BROWSER, "Free"); |
| |
| AVAHI_LLIST_REMOVE(AvahiDomainBrowser, domain_browsers, client->domain_browsers, b); |
| |
| if (b->defer_timeout) |
| b->client->poll_api->timeout_free(b->defer_timeout); |
| |
| avahi_string_list_free(b->static_browse_domains); |
| avahi_free(b->path); |
| avahi_free(b); |
| |
| return r; |
| } |
| |
| DBusHandlerResult avahi_domain_browser_event (AvahiClient *client, AvahiBrowserEvent event, DBusMessage *message) { |
| AvahiDomainBrowser *db = NULL; |
| DBusError error; |
| const char *path; |
| char *domain = NULL; |
| int32_t interface, protocol; |
| uint32_t flags = 0; |
| AvahiStringList *l; |
| |
| assert(client); |
| assert(message); |
| |
| dbus_error_init (&error); |
| |
| if (!(path = dbus_message_get_path(message))) |
| goto fail; |
| |
| for (db = client->domain_browsers; db; db = db->domain_browsers_next) |
| if (strcmp (db->path, path) == 0) |
| break; |
| |
| if (!db) |
| goto fail; |
| |
| interface = db->interface; |
| protocol = db->protocol; |
| |
| switch (event) { |
| case AVAHI_BROWSER_NEW: |
| case AVAHI_BROWSER_REMOVE: |
| |
| if (!dbus_message_get_args( |
| message, &error, |
| DBUS_TYPE_INT32, &interface, |
| DBUS_TYPE_INT32, &protocol, |
| DBUS_TYPE_STRING, &domain, |
| DBUS_TYPE_UINT32, &flags, |
| DBUS_TYPE_INVALID) || |
| dbus_error_is_set (&error)) { |
| fprintf(stderr, "Failed to parse browser event.\n"); |
| goto fail; |
| } |
| |
| break; |
| |
| case AVAHI_BROWSER_CACHE_EXHAUSTED: |
| case AVAHI_BROWSER_ALL_FOR_NOW: |
| break; |
| |
| case AVAHI_BROWSER_FAILURE: { |
| char *etxt; |
| |
| if (!dbus_message_get_args( |
| message, &error, |
| DBUS_TYPE_STRING, &etxt, |
| DBUS_TYPE_INVALID) || |
| dbus_error_is_set (&error)) { |
| fprintf(stderr, "Failed to parse browser event.\n"); |
| goto fail; |
| } |
| |
| avahi_client_set_errno(db->client, avahi_error_dbus_to_number(etxt)); |
| break; |
| } |
| } |
| |
| if (domain) |
| for (l = db->static_browse_domains; l; l = l->next) |
| if (avahi_domain_equal((char*) l->text, domain)) { |
| /* We had this entry already in the static entries */ |
| return DBUS_HANDLER_RESULT_HANDLED; |
| } |
| |
| db->callback(db, (AvahiIfIndex) interface, (AvahiProtocol) protocol, event, domain, (AvahiLookupResultFlags) flags, db->userdata); |
| |
| return DBUS_HANDLER_RESULT_HANDLED; |
| |
| fail: |
| dbus_error_free (&error); |
| return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; |
| } |
| |
| /* AvahiServiceTypeBrowser */ |
| |
| AvahiServiceTypeBrowser* avahi_service_type_browser_new( |
| AvahiClient *client, |
| AvahiIfIndex interface, |
| AvahiProtocol protocol, |
| const char *domain, |
| AvahiLookupFlags flags, |
| AvahiServiceTypeBrowserCallback callback, |
| void *userdata) { |
| |
| AvahiServiceTypeBrowser *b = NULL; |
| DBusMessage *message = NULL, *reply = NULL; |
| DBusError error; |
| char *path; |
| int32_t i_interface, i_protocol; |
| uint32_t u_flags; |
| |
| assert(client); |
| assert(callback); |
| |
| dbus_error_init(&error); |
| |
| if (!avahi_client_is_connected(client)) { |
| avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE); |
| goto fail; |
| } |
| |
| if (!domain) |
| domain = ""; |
| |
| if (!(b = avahi_new(AvahiServiceTypeBrowser, 1))) { |
| avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); |
| goto fail; |
| } |
| |
| b->client = client; |
| b->callback = callback; |
| b->userdata = userdata; |
| b->path = NULL; |
| b->domain = NULL; |
| b->interface = interface; |
| b->protocol = protocol; |
| |
| AVAHI_LLIST_PREPEND(AvahiServiceTypeBrowser, service_type_browsers, client->service_type_browsers, b); |
| |
| if (domain[0]) |
| if (!(b->domain = avahi_strdup(domain))) { |
| avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); |
| goto fail; |
| } |
| |
| if (!(message = dbus_message_new_method_call (AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "ServiceTypeBrowserNew"))) { |
| avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); |
| goto fail; |
| } |
| |
| i_interface = (int32_t) interface; |
| i_protocol = (int32_t) protocol; |
| u_flags = (uint32_t) flags; |
| |
| if (!dbus_message_append_args( |
| message, |
| DBUS_TYPE_INT32, &i_interface, |
| DBUS_TYPE_INT32, &i_protocol, |
| DBUS_TYPE_STRING, &domain, |
| DBUS_TYPE_UINT32, &u_flags, |
| DBUS_TYPE_INVALID)) { |
| 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)) { |
| avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR); |
| goto fail; |
| } |
| |
| if (!dbus_message_get_args (reply, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID) || |
| dbus_error_is_set(&error) || |
| !path) { |
| avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR); |
| goto fail; |
| } |
| |
| if (!(b->path = avahi_strdup(path))) { |
| |
| /* FIXME: We don't remove the object on the server side */ |
| |
| avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); |
| goto fail; |
| } |
| |
| dbus_message_unref(message); |
| dbus_message_unref(reply); |
| |
| return b; |
| |
| fail: |
| |
| if (dbus_error_is_set(&error)) { |
| avahi_client_set_dbus_error(client, &error); |
| dbus_error_free(&error); |
| } |
| |
| if (b) |
| avahi_service_type_browser_free(b); |
| |
| if (message) |
| dbus_message_unref(message); |
| |
| if (reply) |
| dbus_message_unref(reply); |
| |
| return NULL; |
| } |
| |
| AvahiClient* avahi_service_type_browser_get_client (AvahiServiceTypeBrowser *b) { |
| assert(b); |
| return b->client; |
| } |
| |
| int avahi_service_type_browser_free (AvahiServiceTypeBrowser *b) { |
| AvahiClient *client; |
| int r = AVAHI_OK; |
| |
| assert(b); |
| client = b->client; |
| |
| if (b->path && avahi_client_is_connected(b->client)) |
| r = avahi_client_simple_method_call(client, b->path, AVAHI_DBUS_INTERFACE_SERVICE_TYPE_BROWSER, "Free"); |
| |
| AVAHI_LLIST_REMOVE(AvahiServiceTypeBrowser, service_type_browsers, b->client->service_type_browsers, b); |
| |
| avahi_free(b->path); |
| avahi_free(b->domain); |
| avahi_free(b); |
| return r; |
| } |
| |
| DBusHandlerResult avahi_service_type_browser_event (AvahiClient *client, AvahiBrowserEvent event, DBusMessage *message) { |
| AvahiServiceTypeBrowser *b = NULL; |
| DBusError error; |
| const char *path; |
| char *domain, *type = NULL; |
| int32_t interface, protocol; |
| uint32_t flags = 0; |
| |
| assert(client); |
| assert(message); |
| |
| dbus_error_init (&error); |
| |
| if (!(path = dbus_message_get_path(message))) |
| goto fail; |
| |
| for (b = client->service_type_browsers; b; b = b->service_type_browsers_next) |
| if (strcmp (b->path, path) == 0) |
| break; |
| |
| if (!b) |
| goto fail; |
| |
| domain = b->domain; |
| interface = b->interface; |
| protocol = b->protocol; |
| |
| switch (event) { |
| case AVAHI_BROWSER_NEW: |
| case AVAHI_BROWSER_REMOVE: |
| if (!dbus_message_get_args( |
| message, &error, |
| DBUS_TYPE_INT32, &interface, |
| DBUS_TYPE_INT32, &protocol, |
| DBUS_TYPE_STRING, &type, |
| DBUS_TYPE_STRING, &domain, |
| DBUS_TYPE_UINT32, &flags, |
| DBUS_TYPE_INVALID) || |
| dbus_error_is_set(&error)) { |
| fprintf(stderr, "Failed to parse browser event.\n"); |
| goto fail; |
| } |
| break; |
| |
| case AVAHI_BROWSER_CACHE_EXHAUSTED: |
| case AVAHI_BROWSER_ALL_FOR_NOW: |
| break; |
| |
| case AVAHI_BROWSER_FAILURE: { |
| char *etxt; |
| |
| if (!dbus_message_get_args( |
| message, &error, |
| DBUS_TYPE_STRING, &etxt, |
| DBUS_TYPE_INVALID) || |
| dbus_error_is_set (&error)) { |
| fprintf(stderr, "Failed to parse browser event.\n"); |
| goto fail; |
| } |
| |
| avahi_client_set_errno(b->client, avahi_error_dbus_to_number(etxt)); |
| break; |
| } |
| } |
| |
| b->callback(b, (AvahiIfIndex) interface, (AvahiProtocol) protocol, event, type, domain, (AvahiLookupResultFlags) flags, b->userdata); |
| |
| return DBUS_HANDLER_RESULT_HANDLED; |
| |
| fail: |
| dbus_error_free (&error); |
| return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; |
| } |
| |
| /* AvahiServiceBrowser */ |
| |
| AvahiServiceBrowser* avahi_service_browser_new( |
| AvahiClient *client, |
| AvahiIfIndex interface, |
| AvahiProtocol protocol, |
| const char *type, |
| const char *domain, |
| AvahiLookupFlags flags, |
| AvahiServiceBrowserCallback callback, |
| void *userdata) { |
| |
| AvahiServiceBrowser *b = NULL; |
| DBusMessage *message = NULL, *reply = NULL; |
| DBusError error; |
| char *path; |
| int32_t i_protocol, i_interface; |
| uint32_t u_flags; |
| |
| assert(client); |
| assert(type); |
| assert(callback); |
| |
| dbus_error_init(&error); |
| |
| if (!avahi_client_is_connected(client)) { |
| avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE); |
| goto fail; |
| } |
| |
| if (!domain) |
| domain = ""; |
| |
| if (!(b = avahi_new(AvahiServiceBrowser, 1))) { |
| avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); |
| goto fail; |
| } |
| |
| b->client = client; |
| b->callback = callback; |
| b->userdata = userdata; |
| b->path = NULL; |
| b->type = b->domain = NULL; |
| b->interface = interface; |
| b->protocol = protocol; |
| |
| AVAHI_LLIST_PREPEND(AvahiServiceBrowser, service_browsers, client->service_browsers, b); |
| |
| if (!(b->type = avahi_strdup(type))) { |
| avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); |
| goto fail; |
| } |
| |
| if (domain && domain[0]) |
| if (!(b->domain = avahi_strdup(domain))) { |
| avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); |
| goto fail; |
| } |
| |
| if (!(message = dbus_message_new_method_call (AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "ServiceBrowserNew"))) { |
| avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); |
| goto fail; |
| } |
| |
| i_interface = (int32_t) interface; |
| i_protocol = (int32_t) protocol; |
| u_flags = (uint32_t) flags; |
| |
| if (!dbus_message_append_args( |
| message, |
| DBUS_TYPE_INT32, &i_interface, |
| DBUS_TYPE_INT32, &i_protocol, |
| DBUS_TYPE_STRING, &type, |
| DBUS_TYPE_STRING, &domain, |
| DBUS_TYPE_UINT32, &u_flags, |
| DBUS_TYPE_INVALID)) { |
| 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)) { |
| avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR); |
| goto fail; |
| } |
| |
| if (!dbus_message_get_args (reply, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID) || |
| dbus_error_is_set(&error) || |
| !path) { |
| avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR); |
| goto fail; |
| } |
| |
| if (!(b->path = avahi_strdup(path))) { |
| |
| /* FIXME: We don't remove the object on the server side */ |
| |
| avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); |
| goto fail; |
| } |
| |
| dbus_message_unref(message); |
| dbus_message_unref(reply); |
| |
| return b; |
| |
| fail: |
| if (dbus_error_is_set(&error)) { |
| avahi_client_set_dbus_error(client, &error); |
| dbus_error_free(&error); |
| } |
| |
| if (b) |
| avahi_service_browser_free(b); |
| |
| if (message) |
| dbus_message_unref(message); |
| |
| if (reply) |
| dbus_message_unref(reply); |
| |
| return NULL; |
| } |
| |
| AvahiClient* avahi_service_browser_get_client (AvahiServiceBrowser *b) { |
| assert(b); |
| return b->client; |
| } |
| |
| int avahi_service_browser_free (AvahiServiceBrowser *b) { |
| AvahiClient *client; |
| int r = AVAHI_OK; |
| |
| assert(b); |
| client = b->client; |
| |
| if (b->path && avahi_client_is_connected(b->client)) |
| r = avahi_client_simple_method_call(client, b->path, AVAHI_DBUS_INTERFACE_SERVICE_BROWSER, "Free"); |
| |
| AVAHI_LLIST_REMOVE(AvahiServiceBrowser, service_browsers, b->client->service_browsers, b); |
| |
| avahi_free(b->path); |
| avahi_free(b->type); |
| avahi_free(b->domain); |
| avahi_free(b); |
| return r; |
| } |
| |
| DBusHandlerResult avahi_service_browser_event(AvahiClient *client, AvahiBrowserEvent event, DBusMessage *message) { |
| AvahiServiceBrowser *b = NULL; |
| DBusError error; |
| const char *path; |
| char *name = NULL, *type, *domain; |
| int32_t interface, protocol; |
| uint32_t flags = 0; |
| |
| dbus_error_init (&error); |
| |
| if (!(path = dbus_message_get_path(message))) |
| goto fail; |
| |
| for (b = client->service_browsers; b; b = b->service_browsers_next) |
| if (strcmp (b->path, path) == 0) |
| break; |
| |
| if (!b) |
| goto fail; |
| |
| type = b->type; |
| domain = b->domain; |
| interface = b->interface; |
| protocol = b->protocol; |
| |
| switch (event) { |
| case AVAHI_BROWSER_NEW: |
| case AVAHI_BROWSER_REMOVE: |
| |
| if (!dbus_message_get_args ( |
| message, &error, |
| DBUS_TYPE_INT32, &interface, |
| DBUS_TYPE_INT32, &protocol, |
| DBUS_TYPE_STRING, &name, |
| DBUS_TYPE_STRING, &type, |
| DBUS_TYPE_STRING, &domain, |
| DBUS_TYPE_UINT32, &flags, |
| DBUS_TYPE_INVALID) || |
| dbus_error_is_set(&error)) { |
| fprintf(stderr, "Failed to parse browser event.\n"); |
| goto fail; |
| } |
| break; |
| |
| case AVAHI_BROWSER_CACHE_EXHAUSTED: |
| case AVAHI_BROWSER_ALL_FOR_NOW: |
| break; |
| |
| case AVAHI_BROWSER_FAILURE: { |
| char *etxt; |
| |
| if (!dbus_message_get_args( |
| message, &error, |
| DBUS_TYPE_STRING, &etxt, |
| DBUS_TYPE_INVALID) || |
| dbus_error_is_set (&error)) { |
| fprintf(stderr, "Failed to parse browser event.\n"); |
| goto fail; |
| } |
| |
| avahi_client_set_errno(b->client, avahi_error_dbus_to_number(etxt)); |
| break; |
| } |
| } |
| |
| b->callback(b, (AvahiIfIndex) interface, (AvahiProtocol) protocol, event, name, type, domain, (AvahiLookupResultFlags) flags, b->userdata); |
| |
| return DBUS_HANDLER_RESULT_HANDLED; |
| |
| fail: |
| dbus_error_free (&error); |
| return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; |
| } |
| |
| /* AvahiRecordBrowser */ |
| |
| AvahiRecordBrowser* avahi_record_browser_new( |
| AvahiClient *client, |
| AvahiIfIndex interface, |
| AvahiProtocol protocol, |
| const char *name, |
| uint16_t clazz, |
| uint16_t type, |
| AvahiLookupFlags flags, |
| AvahiRecordBrowserCallback callback, |
| void *userdata) { |
| |
| AvahiRecordBrowser *b = NULL; |
| DBusMessage *message = NULL, *reply = NULL; |
| DBusError error; |
| char *path; |
| int32_t i_protocol, i_interface; |
| uint32_t u_flags; |
| |
| assert(client); |
| assert(name); |
| assert(callback); |
| |
| dbus_error_init(&error); |
| |
| if (!avahi_client_is_connected(client)) { |
| avahi_client_set_errno(client, AVAHI_ERR_BAD_STATE); |
| goto fail; |
| } |
| |
| if (!(b = avahi_new(AvahiRecordBrowser, 1))) { |
| avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); |
| goto fail; |
| } |
| |
| b->client = client; |
| b->callback = callback; |
| b->userdata = userdata; |
| b->path = NULL; |
| b->name = NULL; |
| b->clazz = clazz; |
| b->type = type; |
| b->interface = interface; |
| b->protocol = protocol; |
| |
| AVAHI_LLIST_PREPEND(AvahiRecordBrowser, record_browsers, client->record_browsers, b); |
| |
| if (!(b->name = avahi_strdup(name))) { |
| avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); |
| goto fail; |
| } |
| |
| if (!(message = dbus_message_new_method_call(AVAHI_DBUS_NAME, AVAHI_DBUS_PATH_SERVER, AVAHI_DBUS_INTERFACE_SERVER, "RecordBrowserNew"))) { |
| avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); |
| goto fail; |
| } |
| |
| i_interface = (int32_t) interface; |
| i_protocol = (int32_t) protocol; |
| u_flags = (uint32_t) flags; |
| |
| if (!dbus_message_append_args( |
| message, |
| DBUS_TYPE_INT32, &i_interface, |
| DBUS_TYPE_INT32, &i_protocol, |
| DBUS_TYPE_STRING, &name, |
| DBUS_TYPE_UINT16, &clazz, |
| DBUS_TYPE_UINT16, &type, |
| DBUS_TYPE_UINT32, &u_flags, |
| DBUS_TYPE_INVALID)) { |
| 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)) { |
| avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR); |
| goto fail; |
| } |
| |
| if (!dbus_message_get_args (reply, &error, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID) || |
| dbus_error_is_set(&error) || |
| !path) { |
| avahi_client_set_errno(client, AVAHI_ERR_DBUS_ERROR); |
| goto fail; |
| } |
| |
| if (!(b->path = avahi_strdup(path))) { |
| |
| /* FIXME: We don't remove the object on the server side */ |
| |
| avahi_client_set_errno(client, AVAHI_ERR_NO_MEMORY); |
| goto fail; |
| } |
| |
| dbus_message_unref(message); |
| dbus_message_unref(reply); |
| |
| return b; |
| |
| fail: |
| if (dbus_error_is_set(&error)) { |
| avahi_client_set_dbus_error(client, &error); |
| dbus_error_free(&error); |
| } |
| |
| if (b) |
| avahi_record_browser_free(b); |
| |
| if (message) |
| dbus_message_unref(message); |
| |
| if (reply) |
| dbus_message_unref(reply); |
| |
| return NULL; |
| } |
| |
| AvahiClient* avahi_record_browser_get_client (AvahiRecordBrowser *b) { |
| assert(b); |
| return b->client; |
| } |
| |
| int avahi_record_browser_free (AvahiRecordBrowser *b) { |
| AvahiClient *client; |
| int r = AVAHI_OK; |
| |
| assert(b); |
| client = b->client; |
| |
| if (b->path && avahi_client_is_connected(b->client)) |
| r = avahi_client_simple_method_call(client, b->path, AVAHI_DBUS_INTERFACE_RECORD_BROWSER, "Free"); |
| |
| AVAHI_LLIST_REMOVE(AvahiRecordBrowser, record_browsers, b->client->record_browsers, b); |
| |
| avahi_free(b->path); |
| avahi_free(b->name); |
| avahi_free(b); |
| return r; |
| } |
| |
| DBusHandlerResult avahi_record_browser_event(AvahiClient *client, AvahiBrowserEvent event, DBusMessage *message) { |
| AvahiRecordBrowser *b = NULL; |
| DBusError error; |
| const char *path; |
| char *name; |
| int32_t interface, protocol; |
| uint32_t flags = 0; |
| uint16_t clazz, type; |
| void *rdata = NULL; |
| int rdata_size = 0; |
| |
| dbus_error_init (&error); |
| |
| if (!(path = dbus_message_get_path(message))) |
| goto fail; |
| |
| for (b = client->record_browsers; b; b = b->record_browsers_next) |
| if (strcmp (b->path, path) == 0) |
| break; |
| |
| if (!b) |
| goto fail; |
| |
| interface = b->interface; |
| protocol = b->protocol; |
| clazz = b->clazz; |
| type = b->type; |
| name = b->name; |
| |
| switch (event) { |
| case AVAHI_BROWSER_NEW: |
| case AVAHI_BROWSER_REMOVE: { |
| DBusMessageIter iter, sub; |
| int j; |
| |
| if (!dbus_message_get_args ( |
| message, &error, |
| DBUS_TYPE_INT32, &interface, |
| DBUS_TYPE_INT32, &protocol, |
| DBUS_TYPE_STRING, &name, |
| DBUS_TYPE_UINT16, &clazz, |
| DBUS_TYPE_UINT16, &type, |
| DBUS_TYPE_INVALID) || |
| dbus_error_is_set(&error)) { |
| fprintf(stderr, "Failed to parse browser event.\n"); |
| goto fail; |
| } |
| |
| |
| dbus_message_iter_init(message, &iter); |
| |
| for (j = 0; j < 5; j++) |
| dbus_message_iter_next(&iter); |
| |
| if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || |
| dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_BYTE) |
| goto fail; |
| |
| dbus_message_iter_recurse(&iter, &sub); |
| dbus_message_iter_get_fixed_array(&sub, &rdata, &rdata_size); |
| |
| dbus_message_iter_next(&iter); |
| |
| if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32) |
| goto fail; |
| |
| dbus_message_iter_get_basic(&iter, &flags); |
| |
| break; |
| } |
| |
| case AVAHI_BROWSER_CACHE_EXHAUSTED: |
| case AVAHI_BROWSER_ALL_FOR_NOW: |
| break; |
| |
| case AVAHI_BROWSER_FAILURE: { |
| char *etxt; |
| |
| if (!dbus_message_get_args( |
| message, &error, |
| DBUS_TYPE_STRING, &etxt, |
| DBUS_TYPE_INVALID) || |
| dbus_error_is_set (&error)) { |
| fprintf(stderr, "Failed to parse browser event.\n"); |
| goto fail; |
| } |
| |
| avahi_client_set_errno(b->client, avahi_error_dbus_to_number(etxt)); |
| break; |
| } |
| } |
| |
| b->callback(b, (AvahiIfIndex) interface, (AvahiProtocol) protocol, event, name, clazz, type, rdata, (size_t) rdata_size, (AvahiLookupResultFlags) flags, b->userdata); |
| |
| return DBUS_HANDLER_RESULT_HANDLED; |
| |
| fail: |
| dbus_error_free (&error); |
| return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; |
| } |
