149 lines
3.7 KiB
C
149 lines
3.7 KiB
C
/*-
|
|
* Copyright (c) 1993, 1994
|
|
* 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
|
|
static char sccsid[] = "@(#)sex_util.c 8.17 (Berkeley) 8/17/94";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/queue.h>
|
|
#include <sys/time.h>
|
|
|
|
#include <bitstring.h>
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#include <signal.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <termios.h>
|
|
#include <unistd.h>
|
|
|
|
#include "compat.h"
|
|
#include <db.h>
|
|
#include <regex.h>
|
|
|
|
#include "vi.h"
|
|
#include "excmd.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_optchange --
|
|
* Screen specific "option changed" routine.
|
|
*/
|
|
int
|
|
sex_optchange(sp, opt)
|
|
SCR *sp;
|
|
int opt;
|
|
{
|
|
switch (opt) {
|
|
case O_TERM:
|
|
/* Reset the screen size. */
|
|
if (sp->s_window(sp, 0))
|
|
return (1);
|
|
F_SET(sp, S_RESIZE);
|
|
break;
|
|
}
|
|
|
|
(void)ex_optchange(sp, opt);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* sex_suspend --
|
|
* Suspend an ex screen.
|
|
*/
|
|
int
|
|
sex_suspend(sp)
|
|
SCR *sp;
|
|
{
|
|
struct termios t;
|
|
GS *gp;
|
|
int rval;
|
|
|
|
rval = 0;
|
|
|
|
/* Save current terminal settings, and restore the original ones. */
|
|
gp = sp->gp;
|
|
if (F_ISSET(gp, G_STDIN_TTY)) {
|
|
if (tcgetattr(STDIN_FILENO, &t)) {
|
|
msgq(sp, M_SYSERR, "suspend: tcgetattr");
|
|
return (1);
|
|
}
|
|
if (F_ISSET(gp, G_TERMIOS_SET) && tcsetattr(STDIN_FILENO,
|
|
TCSASOFT | TCSADRAIN, &gp->original_termios)) {
|
|
msgq(sp, M_SYSERR, "suspend: tcsetattr original");
|
|
return (1);
|
|
}
|
|
}
|
|
|
|
/* Push out any waiting messages. */
|
|
(void)sex_refresh(sp, sp->ep);
|
|
|
|
/* Stop the process group. */
|
|
if (kill(0, SIGTSTP)) {
|
|
msgq(sp, M_SYSERR, "suspend: kill");
|
|
rval = 1;
|
|
}
|
|
|
|
/* Time passes ... */
|
|
|
|
/* Restore current terminal settings. */
|
|
if (F_ISSET(gp, G_STDIN_TTY) &&
|
|
tcsetattr(STDIN_FILENO, TCSASOFT | TCSADRAIN, &t)) {
|
|
msgq(sp, M_SYSERR, "suspend: tcsetattr current");
|
|
rval = 1;
|
|
}
|
|
return (rval);
|
|
}
|