ref: 869ddb3e052d5be3afe7c5b339e37e7ca152ed7a
dir: /sys/src/ape/lib/net/hangup.c/
#include <stdlib.h>
#include <sys/types.h>
#include <string.h>
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
#include <libnet.h>
/*
* force a connection to hangup
*/
int
hangup(int ctl)
{
return write(ctl, "hangup", sizeof("hangup")-1) != sizeof("hangup")-1;
}