27a7538e38
Changes to be committed: modified: doc/fixes36.1 modified: include/unixconf.h modified: sys/share/ioctl.c github pull request #19 made reference to resulting code behaviour being better when windows were resized when USE_WIN_IOCTL was defined. The logic for including the necessary enabling code in the build in sys/share/ioctl.c was an explicit "opt-in" strategy, so anything not deliberately and explicitly listed was not able to take advantae of the potentially useful code. The need to add #defines to that list would have been perpetual as new platforms came online, and unnecessarily restrictive for everything else. This switches the logic to include the code by default now, and thus unless there is an explicit "opt-out" by uncommenting AVOID_WIN_IOCTL in include/unixconf.h Some platforms, and we have no way of knowing which ones, may have to ensure that AVOID_WIN_IOCTL is #define'd.
201 lines
4.6 KiB
C
201 lines
4.6 KiB
C
/* NetHack 3.6 ioctl.c $NHDT-Date: 1520099308 2018/03/03 17:48:28 $ $NHDT-Branch: NetHack-3.6.0 $:$NHDT-Revision: 1.13 $ */
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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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/* AVOID_WIN_IOCTL can be uncommented in unixconf.h
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* to force USE_WIN_IOTCL to remain undefined,
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* instead of the restricted explicit opt-in
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* logic that used to be here.
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*/
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#if defined(TIOCGWINSZ) && !defined(AVOID_WIN_IOCTL)
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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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