From the NannyMUD documentation

LAST CHANGE

2001-10-02

FUNCTION

NAME
        socket_connect - Initiate a connection on a socket.


SYNTAX
        #include 
        #include 

        int socket_connect(int s, string address, string read_callback,
			   string write_callback)

DESCRIPTION
        The argument s is a socket. s must be either a STREAM mode or
        a MUD mode socket. address is the address to which the socket
        will attempt to connect.  address is of the form:
	"127.0.0.1 23"

	The argument read_callback is the name of a function for the
        driver to call when the socket gets data from its peer. The
        read callback should follow this format:

        void read_callback(int fd, mixed message)

        Where fd is the socket which received the data, and  message
        is the data which was received.

        The argument write_callback is the name of a function for the
        driver to call when the socket is ready to be written to. The
        write callback should follow this format:

        void write_callback(int fd)

        Where fd is the socket which is ready to be written to.

	RETURN VALUE
        socket_connect() returns:

        EESUCCESS on success.

        a negative value indicated below on error.
	ERRORS

        EEFDRANGE      Descriptor out of range.
        EEBADF         Descriptor is invalid.
        EESECURITY     Security violation attempted.
        EEMODENOTSUPP  Socket mode not supported.
        EEISLISTEN     Socket is listening.
        EEISCONN       Socket is already connected.
        EEBADADDR      Problem with address format.
        EEINTR         Interrupted system call.
        EEADDRINUSE    Address already in use.
        EEALREADY      Operation already in progress.
        EECONNREFUSED  Connection refused.
        EECONNECT      Problem with connect.


SEE ALSO
        socket_accept in efun/socket/socket_accept


SEE ALSO
        socket_close in efun/socket/socket_close