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android_mt6572_jiabo/external/avahi/avahi-client/browser.c
FuQuan 3ff2876a30 first commit
2025-09-05 16:56:03 +08:00

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/***
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/avahi-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;
}
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