97d6fade74
I'll push a formatting guide at some point. There may still be outstanding changes, but please feel free to resolve those as you arrive a them. To the best of my knowledge, there is no changes to the actual code content, but the formatter does have the occasional bug. If you run into an issue, please fix it!
199 lines
4.6 KiB
C
199 lines
4.6 KiB
C
/* NetHack 3.6 ioctl.c $NHDT-Date: 1431192779 2015/05/09 17:32:59 $ $NHDT-Branch: master $:$NHDT-Revision: 1.11 $ */
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/* NetHack 3.6 ioctl.c $Date: 2011/06/16 15:10:14 $ $Revision: 1.8 $ */
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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) || defined(_BULL_SOURCE)
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#ifdef HPUX
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#include <bsdtty.h>
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#else
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#if defined(AIX_31) && !defined(_ALL_SOURCE)
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#define _ALL_SOURCE /* causes struct winsize to be present */
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#ifdef _AIX32
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#include <sys/ioctl.h>
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#endif
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#endif
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#if defined(_BULL_SOURCE)
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#include <termios.h>
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struct termios termio;
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#undef TIMEOUT /* defined in you.h and sys/tty.h */
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#include <sys/tty.h> /* define winsize */
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#include <sys/ttold.h> /* define struct ltchars */
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#include <sys/bsdioctl.h> /* define TIOGWINSZ */
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#else
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#ifdef LINUX
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#include <bsd/sgtty.h>
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#else
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#include <sgtty.h>
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#endif
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#endif
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#endif
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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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#ifdef POSIX_TYPES
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#include <termios.h>
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struct termios termio;
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#if defined(BSD) || defined(_AIX32) || defined(__linux__)
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#if defined(_AIX32) && !defined(_ALL_SOURCE)
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#define _ALL_SOURCE
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#endif
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#include <sys/ioctl.h>
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#endif
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#else
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#include <termio.h> /* also includes part of <sgtty.h> */
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#if defined(TCSETS) && !defined(AIX_31)
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struct termios termio;
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#else
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struct termio termio;
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#endif
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#endif
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#if defined(AMIX) || defined(__APPLE__)
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#include <sys/ioctl.h>
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#endif /* AMIX */
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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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#if defined(TIOCGWINSZ) \
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&& (defined(BSD) || defined(ULTRIX) || defined(AIX_31) \
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|| defined(_BULL_SOURCE) || defined(SVR4))
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#define USE_WIN_IOCTL
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#include "tcap.h" /* for LI and CO */
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#endif
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#ifdef _M_UNIX
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extern void NDECL(sco_mapon);
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extern void NDECL(sco_mapoff);
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#endif
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#ifdef __linux__
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extern void NDECL(linux_mapon);
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extern void NDECL(linux_mapoff);
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#endif
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#ifdef AUX
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void
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catch_stp()
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{
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signal(SIGTSTP, SIG_DFL);
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dosuspend();
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}
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#endif /* AUX */
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void
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getwindowsz()
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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()
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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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#ifdef POSIX_TYPES
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(void) tcgetattr(fileno(stdin), &termio);
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#else
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#if defined(TCSETS) && !defined(AIX_31)
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(void) ioctl(fileno(stdin), (int) TCGETS, &termio);
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#else
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(void) ioctl(fileno(stdin), (int) TCGETA, &termio);
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#endif
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#endif
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#endif
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getwindowsz();
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#ifdef AUX
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(void) signal(SIGTSTP, catch_stp);
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#endif
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}
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void
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setioctls()
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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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#ifdef POSIX_TYPES
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(void) tcsetattr(fileno(stdin), TCSADRAIN, &termio);
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#else
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#if defined(TCSETS) && !defined(AIX_31)
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(void) ioctl(fileno(stdin), (int) TCSETSW, &termio);
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#else
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(void) ioctl(fileno(stdin), (int) TCSETAW, &termio);
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#endif
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#endif
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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()
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{
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#ifdef SYSCF
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/* NB: check_user_string() is port-specific. */
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if (!sysopt.shellers || !sysopt.shellers[0]
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|| !check_user_string(sysopt.shellers)) {
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Norep("Suspend command not available.");
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return 0;
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}
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#endif
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#if defined(SIGTSTP) && !defined(NO_SIGNAL)
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if (signal(SIGTSTP, SIG_IGN) == SIG_DFL) {
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suspend_nhwindows((char *) 0);
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#ifdef _M_UNIX
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sco_mapon();
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#endif
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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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#ifdef AUX
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(void) kill(0, SIGSTOP);
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#else
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(void) kill(0, SIGTSTP);
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#endif
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#ifdef _M_UNIX
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sco_mapoff();
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#endif
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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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