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rfcomm_sppd(1) [freebsd man page]

RFCOMM_SPPD(1)						    BSD General Commands Manual 					    RFCOMM_SPPD(1)

rfcomm_sppd -- RFCOMM Serial Port Profile daemon SYNOPSIS
rfcomm_sppd [-bhtS] -a address -c channel DESCRIPTION
The rfcomm_sppd utility is a Serial Port Profile daemon. It can operate in two modes: client and server. In client mode, rfcomm_sppd opens RFCOMM connection to the specified address server and channel. Once connection is established, the rfcomm_sppd utility provides access to the server's remote serial port via stdin/stdout or via pts(4) interface if -t option was specified. If the -S option is specified, rfcomm_sppd will operate in server mode and act as RFCOMM server, listening on ANY address and advertising a virtual serial port via the sdpd(8) daemon. If -t options was specified, the server side of the virtual serial port is attached to a pseudo- terminal. Otherwise the virtual serial port is attached to the stdin/stdout. rfcomm_sppd should be run as root in order to communicate with sdpd(8) in this case. The rfcomm_sppd utility opens both master and slave pseudo terminals. This is done to ensure that RFCOMM connection stays open until rfcomm_sppd is terminated. The data received from the master pseudo terminal are sent over the RFCOMM connection. The data received from the RFCOMM connection are written into master pseudo terminal. The application in its turn opens the slave pseudo terminal and operates on it just like it would operate over the standard serial port. The options are as follows: -a address In client mode, this required option specifies the address of the remote RFCOMM server. If this option is specified in server mode, rfcomm_sppd will only accept connections from the Bluetooth device with address address. The address can be specified as BD_ADDR or name. If name was specified then rfcomm_sppd utility will attempt to resolve the name via bt_gethostbyname(3). -b Detach from the controlling terminal, i.e., run in background. -c channel In both client and server mode, this option specifies the RFCOMM channel to connect to or listen on. In server mode, the channel should be a number between 1 and 30. If not specified, rfcomm_sppd will try to bind to ``wildcard'' RFCOMM channel number. The actual RFCOMM channel will be obtained via getsockname(2) call and will be used to register Serial Port service with sdpd(8). In client mode, the channel could either be a number between 1 and 30 or a service name. Supported service names are: DUN (for DialUp Networking service), FAX (for Fax service), LAN (for LAN Access Using PPP service) and SP (for Serial Port service). If channel was not specified then rfcomm_sppd utility will try to obtain RFCOMM channel for Serial Port service via Service Discovery Protocol from the server. -h Display usage message and exit. -S Server mode; see DESCRIPTION. -t Use slave pseudo tty. If not set stdin/stdout will be used. This option is required if -b option was specified. FILES
/dev/pts/[num] slave pseudo terminals EXIT STATUS
The rfcomm_sppd utility exits 0 on success, and >0 if an error occurs. EXAMPLES
rfcomm_sppd -a 00:01:02:03:04:05 -c 1 -t Will start the rfcomm_sppd utility and open RFCOMM connection to the server at 00:01:02:03:04:05 and channel 1. Once the connection has been established, a pts(4) can be used to talk to the remote serial port on the server. rfcomm_sppd prints the name of the pts(4) to use on std- out. SEE ALSO
bluetooth(3), ng_btsocket(4), pts(4), rfcomm_pppd(8), sdpd(8) AUTHORS
Maksim Yevmenkin <> BUGS
Please report if found. BSD
April 21, 2008 BSD

Check Out this Related Man Page

telnetd(8c)															       telnetd(8c)

       telnetd - DARPA TELNET protocol server


       The  server  supports the DARPA standard TELNET virtual terminal protocol.  The TELNET server is invoked when receives a connection request
       on the port indicated in the TELNET service description.

       The server operates by allocating a pseudo-terminal device for a client, then creating a login process which has  the  slave  side  of  the
       pseudo-terminal	as stdin, stdout, and stderr.  The server manipulates the master side of the pseudo terminal, implementing the TELNET pro-
       tocol and passing characters between the client and login process.

       When a TELNET session is started up, sends a TELNET option to the client side indicating a willingness to do remote echo of characters,	to
       suppress  go  ahead, and to receive terminal type information from the remote client.  If the remote client is willing, the remote terminal
       type is propagated in the environment of the created login process.  The pseudo terminal allocated to the client is configured  to  operate
       in cooked mode and with XTABS and CRMOD enabled.

       Aside  from  this  initial  setup, the only mode changes will carry out are those required for echoing characters at the client side of the

       The server supports binary mode, suppress go ahead, echo, and timing mark.  It also allows a remote client to do binary, terminal type, and
       suppress go ahead.

       Some TELNET commands are only partially implemented.

       The TELNET protocol allows the exchange of the number of lines and columns on the user's terminal, but does not make use of them.

       The terminal type name received from the remote client is converted to lower case.

       The server never sends TELNET go ahead commands.

See Also
       telnet(1c), pty(4), tty(4), services(5), inetd(8c)

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