示例#1
0
void openInterface(Interface * interface, int fd) {
	int flags;
	
	assert(interface->open==0);

	interface->bufferLength = 0;
	interface->bufferPos = 0;
	interface->fd = fd;
	/* fcntl(interface->fd,F_SETOWN,(int)getpid()); */
	while((flags = fcntl(fd,F_GETFL))<0 && errno==EINTR);
	flags|=O_NONBLOCK;
	while(fcntl(interface->fd,F_SETFL,flags)<0 && errno==EINTR);
	while((interface->fp = fdopen(fd,"rw"))==NULL && errno==EINTR);
	interface->open = 1;
	interface->lastTime = time(NULL);
	interface->commandList = NULL;
	interface->bufferList = NULL;
	interface->expired = 0;
	interface->outputBufferSize = 0;
	interface->outBuflen = 0;

	interface->permission = getDefaultPermissions();

	interface->outBufSize = INTERFACE_DEFAULT_OUT_BUFFER_SIZE;
#ifdef SO_SNDBUF
	{
		int getSize;
		int sockOptLen = sizeof(int);

		if(getsockopt(interface->fd,SOL_SOCKET,SO_SNDBUF,
					(char *)&getSize,&sockOptLen) < 0)
		{
			DEBUG("problem getting sockets send buffer size\n");
		}
		else if(getSize<=0) {
			DEBUG("sockets send buffer size is not positive\n");
		}
		else interface->outBufSize = getSize;
	}
#endif
	interface->outBuffer = malloc(interface->outBufSize);
	
	myfprintf(interface->fp, "%s %s\n", GREETING, VERSION);
	printInterfaceOutBuffer(interface);
}
示例#2
0
文件: client.c 项目: azuwis/mpd
static void client_init(struct client *client, int fd)
{
    static unsigned int next_client_num;

    assert(fd >= 0);

    client->cmd_list_size = 0;
    client->cmd_list_OK = -1;

#ifndef G_OS_WIN32
    client->channel = g_io_channel_unix_new(fd);
#else
    client->channel = g_io_channel_win32_new_socket(fd);
#endif
    /* GLib is responsible for closing the file descriptor */
    g_io_channel_set_close_on_unref(client->channel, true);
    /* NULL encoding means the stream is binary safe; the MPD
       protocol is UTF-8 only, but we are doing this call anyway
       to prevent GLib from messing around with the stream */
    g_io_channel_set_encoding(client->channel, NULL, NULL);
    /* we prefer to do buffering */
    g_io_channel_set_buffered(client->channel, false);

    client->source_id = g_io_add_watch(client->channel,
                                       G_IO_IN|G_IO_ERR|G_IO_HUP,
                                       client_in_event, client);

    client->input = fifo_buffer_new(4096);

    client->lastTime = time(NULL);
    client->cmd_list = NULL;
    client->deferred_send = g_queue_new();
    client->deferred_bytes = 0;
    client->num = next_client_num++;
    client->send_buf_used = 0;

    client->permission = getDefaultPermissions();

    (void)write(fd, GREETING, sizeof(GREETING) - 1);
}
示例#3
0
void
client_new(struct player_control *player_control,
	   int fd, const struct sockaddr *sa, size_t sa_length, int uid)
{
	static unsigned int next_client_num;
	struct client *client;
	char *remote;

	assert(player_control != NULL);
	assert(fd >= 0);

#ifdef HAVE_LIBWRAP
	if (sa->sa_family != AF_UNIX) {
		char *hostaddr = sockaddr_to_string(sa, sa_length, NULL);
		const char *progname = g_get_prgname();

		struct request_info req;
		request_init(&req, RQ_FILE, fd, RQ_DAEMON, progname, 0);

		fromhost(&req);

		if (!hosts_access(&req)) {
			/* tcp wrappers says no */
			g_log(G_LOG_DOMAIN, LOG_LEVEL_SECURE,
			      "libwrap refused connection (libwrap=%s) from %s",
			      progname, hostaddr);

			g_free(hostaddr);
			close_socket(fd);
			return;
		}

		g_free(hostaddr);
	}
#endif	/* HAVE_WRAP */

	if (client_list_is_full()) {
		g_warning("Max Connections Reached!");
		close_socket(fd);
		return;
	}

	client = g_new0(struct client, 1);
	client->player_control = player_control;

	client->channel = g_io_channel_new_socket(fd);
	/* GLib is responsible for closing the file descriptor */
	g_io_channel_set_close_on_unref(client->channel, true);
	/* NULL encoding means the stream is binary safe; the MPD
	   protocol is UTF-8 only, but we are doing this call anyway
	   to prevent GLib from messing around with the stream */
	g_io_channel_set_encoding(client->channel, NULL, NULL);
	/* we prefer to do buffering */
	g_io_channel_set_buffered(client->channel, false);

	client->source_id = g_io_add_watch(client->channel,
					   G_IO_IN|G_IO_ERR|G_IO_HUP,
					   client_in_event, client);

	client->input = fifo_buffer_new(4096);

	client->permission = getDefaultPermissions();
	client->uid = uid;

	client->last_activity = g_timer_new();

	client->cmd_list = NULL;
	client->cmd_list_OK = -1;
	client->cmd_list_size = 0;

	client->deferred_send = g_queue_new();
	client->deferred_bytes = 0;
	client->num = next_client_num++;

	client->send_buf_used = 0;

	client->subscriptions = NULL;
	client->messages = NULL;
	client->num_messages = 0;

	(void)send(fd, GREETING, sizeof(GREETING) - 1, 0);

	client_list_add(client);

	remote = sockaddr_to_string(sa, sa_length, NULL);
	g_log(G_LOG_DOMAIN, LOG_LEVEL_SECURE,
	      "[%u] opened from %s", client->num, remote);
	g_free(remote);
}