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jwalz
187
sys/share/ioctl.c
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187
sys/share/ioctl.c
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/* SCCS Id: @(#)ioctl.c 3.3 90/22/02 */
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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) || 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)
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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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# ifdef AMIX
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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) && (defined(BSD) || defined(ULTRIX) || defined(AIX_31) || 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 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 _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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