#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <unistd.h>
int main(int argc, char **argv)
{
int s;
if ((s = socket(PF_INET, SOCK_STREAM, 0)) < 0)
{
perror("socket");
exit(1);
}
if (fcntl(s, F_SETOWN, getpid()) < 0)
{
perror("fcntl(F_SETOWN)");
exit(1);
}
if (close(s) < 0)
{
perror("close");
exit(1);
}
exit(0);
}