/*
 *
 *    Copyright (C) 1989 by the Massachusetts Institute of Technology
 *    Developed by the MIT Student Information Processing Board (SIPB).
 *    For copying information, see the file mit-copyright.h in this release.
 *
 */
/*
 * Routines for dealing with ^C while running program.
 *
 * Stan picked the names, not me..
 */
#ifndef lint
static char *rcsid_discuss_c = "$Header: /afs/sipb.mit.edu/project/discuss/.cvsroot/discuss/source/client/interrupt.c,v 1.5 1992/06/26 02:12:45 raeburn Exp $";
#endif lint

#include <signal.h>

int interrupt = 0;
static int (*old_interrupt_handler)() = SIG_DFL;

static void
interrupt_handler(dummy)
int dummy;
{
	interrupt = 1;
}

void
flag_interrupts()
{
	interrupt = 0;
	old_interrupt_handler = signal (SIGINT, interrupt_handler);
}

void
dont_flag_interrupts()
{
	(void) signal (SIGINT, old_interrupt_handler);
}