git: 9front

ref: a580fff1d14d1dc9e6ca8dccf564fd9ae90cde08
dir: /sys/src/libc/port/hangup.c/

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#include <u.h>
#include <libc.h>
#include <ctype.h>

/*
 *  force a connection to hangup
 */
int
hangup(int ctl)
{
	static char msg[] = "hangup";
	return write(ctl, msg, sizeof(msg)-1) != sizeof(msg)-1;
}