A valid socket resource created with socket_create().
If the socket is of the AF_INET family, the
address is an IP in dotted-quad notation
If the socket is of the AF_UNIX family, the
address is the path of a
Unix-domain socket (e.g. /tmp/my.sock).
port parameter is only used when
connecting to an AF_INET socket, and
designates the port on the remote host to which a connection
should be made.
Returns TRUE on success or FALSE on failure.
Example 1. Using socket_bind() to set the source address
Note: This function must be used on the socket before socket_connect().
Note: Windows 9x/ME compatibility note: socket_last_error() may return an invalid error code if trying to bind the socket to a wrong address that does not belong to your machine.