Create a non-blocking udp/ip datagram socket
#include <socket.h>
int socket_udp4();
socket_udp4 creates a non-blocking UDP/IP datagram socket and returns a file descriptor pointing to that socket. If something goes wrong, socket_udp4 returns -1, setting errno appropriately, without allocating any resources.
#include <socket.h>
int s; char ip[4]; uint16 p;
s = socket_udp4(); socket_bind4(s,ip,p); socket_connect4(s,ip,p);