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#include <sys/types.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <unistd.h>
#include "ndelay.h"
#include "socket.h"
int socket_udp(void)
{
int s;
s = socket(AF_INET,SOCK_DGRAM,0);
if (s == -1) return -1;
if (ndelay_on(s) == -1) { close(s); return -1; }
return s;
}