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				/* $OpenBSD: spawn.c,v 1.12 2015/03/19 21:22:15 bcallah Exp $ */

				/* This file is in the public domain. */

				/*
				* Spawn. Actually just suspends Mg.
				* Assumes POSIX job control.
				*/

				#include <sys/queue.h>
				#include <signal.h>
				#include <stdio.h>
				#include <term.h>
				#include <termios.h>

				#include "def.h"

				/*
				* This causes mg to send itself a stop signal. It assumes the parent
				* shell supports POSIX job control. If the terminal supports an alternate
				* screen, we will switch to it.
				*/
				/* ARGSUSED */
				int
				spawncli(int f, int n)
				{
				sigset_t oset;

				/* Very similar to what vttidy() does. */
				ttcolor(CTEXT);
				ttnowindow();
				ttmove(nrow - 1, 0);
				if (epresf != FALSE) {
				tteeol();
				epresf = FALSE;
				}
				if (ttcooked() == FALSE)
				return (FALSE);

				/* Exit application mode and tidy. */
				tttidy();
				ttflush();
				(void)sigprocmask(SIG_SETMASK, NULL, &oset);
				(void)kill(0, SIGTSTP);
				(void)sigprocmask(SIG_SETMASK, &oset, NULL);
				ttreinit();

				/* Force repaint. */
				sgarbf = TRUE;
				return (ttraw());
				}