NetBSD/usr.bin/vi/sex/sex_util.c

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/*-
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
1994-01-24 09:38:43 +03:00
/* from: static char sccsid[] = "@(#)sex_util.c 8.9 (Berkeley) 12/23/93"; */
static char *rcsid = "$Id: sex_util.c,v 1.3 1994/03/02 01:54:21 cgd Exp $";
#endif /* not lint */
#include <sys/types.h>
#include <errno.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>
#include "vi.h"
#include "sex_screen.h"
/*
* sex_bell --
* Ring the bell.
*/
void
sex_bell(sp)
SCR *sp;
{
(void)write(STDOUT_FILENO, "\07", 1); /* \a */
}
void
sex_busy(sp, msg)
SCR *sp;
char const *msg;
{
(void)fprintf(stdout, "%s\n", msg);
(void)fflush(stdout);
}
/*
* sex_suspend --
* Suspend an ex screen.
*/
int
sex_suspend(sp)
SCR *sp;
{
struct termios t;
int rval;
/* Save ex/vi terminal settings, and restore the original ones. */
if (F_ISSET(sp->gp, G_ISFROMTTY) && F_ISSET(sp->gp, G_HAVETTY)) {
(void)tcgetattr(STDIN_FILENO, &t);
(void)tcsetattr(STDIN_FILENO,
TCSADRAIN, &sp->gp->original_termios);
}
/* Kill the process group. */
F_SET(sp->gp, G_SLEEPING);
if (rval = kill(0, SIGTSTP))
msgq(sp, M_SYSERR, "SIGTSTP");
F_CLR(sp->gp, G_SLEEPING);
/* Restore ex/vi terminal settings. */
if (F_ISSET(sp->gp, G_ISFROMTTY))
(void)tcsetattr(STDIN_FILENO, TCSADRAIN, &t);
return (rval);
}