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149 lines
3.7 KiB
C
149 lines
3.7 KiB
C
/*-
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* Copyright (c) 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char sccsid[] = "@(#)sex_util.c 8.17 (Berkeley) 8/17/94";
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/queue.h>
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#include <sys/time.h>
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#include <bitstring.h>
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#include <errno.h>
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#include <limits.h>
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#include <signal.h>
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#include <stdio.h>
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#include <string.h>
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#include <termios.h>
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#include <unistd.h>
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#include "compat.h"
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#include <db.h>
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#include <regex.h>
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#include "vi.h"
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#include "excmd.h"
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#include "sex_screen.h"
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/*
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* sex_bell --
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* Ring the bell.
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*/
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void
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sex_bell(sp)
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SCR *sp;
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{
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(void)write(STDOUT_FILENO, "\07", 1); /* \a */
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}
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void
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sex_busy(sp, msg)
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SCR *sp;
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char const *msg;
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{
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(void)fprintf(stdout, "%s\n", msg);
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(void)fflush(stdout);
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}
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/*
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* sex_optchange --
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* Screen specific "option changed" routine.
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*/
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int
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sex_optchange(sp, opt)
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SCR *sp;
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int opt;
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{
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switch (opt) {
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case O_TERM:
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/* Reset the screen size. */
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if (sp->s_window(sp, 0))
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return (1);
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F_SET(sp, S_RESIZE);
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break;
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}
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(void)ex_optchange(sp, opt);
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return (0);
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}
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/*
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* sex_suspend --
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* Suspend an ex screen.
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*/
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int
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sex_suspend(sp)
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SCR *sp;
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{
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struct termios t;
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GS *gp;
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int rval;
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rval = 0;
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/* Save current terminal settings, and restore the original ones. */
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gp = sp->gp;
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if (F_ISSET(gp, G_STDIN_TTY)) {
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if (tcgetattr(STDIN_FILENO, &t)) {
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msgq(sp, M_SYSERR, "suspend: tcgetattr");
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return (1);
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}
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if (F_ISSET(gp, G_TERMIOS_SET) && tcsetattr(STDIN_FILENO,
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TCSASOFT | TCSADRAIN, &gp->original_termios)) {
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msgq(sp, M_SYSERR, "suspend: tcsetattr original");
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return (1);
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}
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}
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/* Push out any waiting messages. */
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(void)sex_refresh(sp, sp->ep);
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/* Stop the process group. */
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if (kill(0, SIGTSTP)) {
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msgq(sp, M_SYSERR, "suspend: kill");
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rval = 1;
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}
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/* Time passes ... */
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/* Restore current terminal settings. */
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if (F_ISSET(gp, G_STDIN_TTY) &&
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tcsetattr(STDIN_FILENO, TCSASOFT | TCSADRAIN, &t)) {
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msgq(sp, M_SYSERR, "suspend: tcsetattr current");
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rval = 1;
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}
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return (rval);
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}
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