mirror of
https://codeberg.org/noisytoot/notnotdnethack.git
synced 2024-09-19 22:14:48 +01:00
Ron Nazarov
34aaaf57e1
E as in the alias for extern, not the completely different E that's an alias for EXPLOSION used in objects.c.
99 lines
2.1 KiB
C
99 lines
2.1 KiB
C
/* SCCS Id: @(#)ioctl.c 3.4 1990/22/02 */
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/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
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/* NetHack may be freely redistributed. See license for details. */
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/* This cannot be part of hack.tty.c (as it was earlier) since on some
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systems (e.g. MUNIX) the include files <termio.h> and <sgtty.h>
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define the same constants, and the C preprocessor complains. */
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#include "hack.h"
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#if defined(BSD_JOB_CONTROL)
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# include <bsd/sgtty.h>
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struct ltchars ltchars;
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struct ltchars ltchars0 = { -1, -1, -1, -1, -1, -1 }; /* turn all off */
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#else
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#include <termios.h>
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struct termios termio;
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#endif
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#ifdef SUSPEND /* BSD isn't alone anymore... */
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#include <signal.h>
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#endif
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#ifdef __linux__
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extern void linux_mapon(void);
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extern void linux_mapoff(void);
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#endif
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void
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getwindowsz(void)
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{
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#ifdef USE_WIN_IOCTL
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/*
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* ttysize is found on Suns and BSD
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* winsize is found on Suns, BSD, and Ultrix
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*/
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struct winsize ttsz;
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if (ioctl(fileno(stdin), (int)TIOCGWINSZ, (char *)&ttsz) != -1) {
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/*
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* Use the kernel's values for lines and columns if it has
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* any idea.
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*/
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if (ttsz.ws_row)
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LI = ttsz.ws_row;
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if (ttsz.ws_col)
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CO = ttsz.ws_col;
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}
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#endif
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}
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void
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getioctls(void)
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{
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#ifdef BSD_JOB_CONTROL
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(void) ioctl(fileno(stdin), (int) TIOCGLTC, (char *) <chars);
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(void) ioctl(fileno(stdin), (int) TIOCSLTC, (char *) <chars0);
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#else
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(void) tcgetattr(fileno(stdin), &termio);
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#endif
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getwindowsz();
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}
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void
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setioctls(void)
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{
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#ifdef BSD_JOB_CONTROL
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(void) ioctl(fileno(stdin), (int) TIOCSLTC, (char *) <chars);
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#else
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(void) tcsetattr(fileno(stdin), TCSADRAIN, &termio);
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#endif
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}
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#ifdef SUSPEND /* No longer implies BSD */
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int
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dosuspend(void)
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{
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# ifdef SIGTSTP
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if(signal(SIGTSTP, SIG_IGN) == SIG_DFL) {
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suspend_nhwindows((char *)0);
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# ifdef __linux__
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linux_mapon();
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# endif
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(void) signal(SIGTSTP, SIG_DFL);
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(void) kill(0, SIGTSTP);
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# ifdef __linux__
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linux_mapoff();
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# endif
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resume_nhwindows();
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} else {
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pline("I don't think your shell has job control.");
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}
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# else
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pline("Sorry, it seems we have no SIGTSTP here. Try ! or S.");
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# endif
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return(0);
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}
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#endif /* SUSPEND */
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