man socket_local4 () - get local IP address of socket
NAME
socket_local4 - get local IP address of socket
SYNTAX
#include <socket.h>
int socket_local4(int s,char ip[4],uint16 *port);
DESCRIPTION
socket_local4 returns the local IP address and port for the UDP or TCP socket s and writes the IP address to ip and the port to port.
If something goes wrong, socket_local4 returns -1, setting errno appropriately.