socket_connected(3) [debian man page]

socket_connected(3)					     Library Functions Manual					       socket_connected(3)

NAME

       socket_connected - is a connection established on a socket?

SYNTAX

       #include <socket.h>

       int socket_connected(int s);

DESCRIPTION

       socket_connected returns 1 if s is a socket and a connection is established, 0 otherwise.

SEE ALSO

       socket_remote4(3), socket_remote6(3)

															       socket_connected(3)

socket_connect4(3)					     Library Functions Manual						socket_connect4(3)

NAME

       socket_connect4 - attempt to make a TCP connection

SYNTAX

       #include <socket.h>

       int socket_connect4(int s,const char ip[4],uint16 port);

DESCRIPTION

       socket_connect4 attempts to make a connection from TCP socket s to TCP port port on IP address ip.

       socket_connect4 may return

       o      0, to indicate that the connection succeeded (and succeeded immediately, if the socket is non-blocking)

       o      -1, setting errno to error_inprogress or error_wouldblock, to indicate that the socket is non-blocking

       o      -1, setting errno to something else, to indicate that the connection failed (and failed immediately, if the socket is non-blocking).

       When  a	background connection succeeds or fails, s becomes writable; you can use socket_connected to see whether the connection succeeded.
       If the connection failed, socket_connected returns 0, setting errno appropriately.

       Once a TCP socket is connected, you can use the read and write system calls to transmit data.

       You can call socket_connect4 without calling socket_bind4.  This has the effect as first calling socket_bind4 with IP address  0.0.0.0  and
       port 0.

EXAMPLE

	 #include <socket.h>

	 int s;
	 char ip[4];
	 uint16 p;

	 s = socket_tcp4();
	 socket_bind4(s,ip,p);
	 socket_connect4(s,ip,p);

SEE ALSO

       socket_connect6(3)

																socket_connect4(3)