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/* SCCS Id: @(#)unixtty.c 3.0 88/05/03
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* NetHack may be freely redistributed. See license for details. */
/* tty.c - (Unix) version */
/* With thanks to the people who sent code for SYSV - hpscdi!jon,
* arnold@ucsf-cgl, wcs@bo95b, cbcephus!pds and others.
*/
/* block some unused #defines to avoid overloading some cpp's */
#define MONATTK_H
#define ONAMES_H
#define NEED_VARARGS
#include "hack.h"
/*
* The distinctions here are not BSD - rest but rather USG - rest, as
* BSD still has the old sgttyb structure, but SYSV has termio. Thus:
*/
#if defined(BSD) || defined(ULTRIX)
#define V7
#else
#define USG
#endif
#ifdef USG
#include <termio.h>
#define termstruct termio
#define kill_sym c_cc[VKILL]
#define erase_sym c_cc[VERASE]
#define intr_sym c_cc[VINTR]
#define EXTABS TAB3
#define tabflgs c_oflag
#define echoflgs c_lflag
#define cbrkflgs c_lflag
#define CBRKMASK ICANON
#define CBRKON ! /* reverse condition */
#define OSPEED(x) ((x).c_cflag & CBAUD)
#define IS_7BIT(x) ((x).c_cflag & CS7)
#define inputflags c_iflag
#define STRIPHI ISTRIP
#define GTTY(x) (ioctl(0, TCGETA, x))
/* STTY now modified to run under Sys V R3. - may have to be #ifdef'ed */
#define STTY(x) (ioctl(0, TCSETAW, x)) /* TCSETAF? TCSETAW? */
#define GTTY2(x) 1
#define STTY2(x) 1
#define nonesuch 0
#define inittyb2 inittyb
#define curttyb2 curttyb
#else /* V7 */
#include <sgtty.h>
#define termstruct sgttyb
#define kill_sym sg_kill
#define erase_sym sg_erase
#define intr_sym t_intrc
#define EXTABS XTABS
#define tabflgs sg_flags
#define echoflgs sg_flags
#define cbrkflgs sg_flags
#define CBRKMASK CBREAK
#define CBRKON /* empty */
#define inputflags sg_flags /* don't know how enabling meta bits */
#define IS_7BIT(x) (FALSE)
#define STRIPHI 0 /* should actually be done on BSD */
#define OSPEED(x) (x).sg_ospeed
#define GTTY(x) (gtty(0, x))
#define STTY(x) (stty(0, x))
#define GTTY2(x) (ioctl(0, TIOCGETC, (char *)x))
#define STTY2(x) (ioctl(0, TIOCSETC, (char *)x))
#define nonesuch -1
struct tchars inittyb2, curttyb2;
#endif
extern short ospeed;
char erase_char, intr_char, kill_char;
static boolean settty_needed = FALSE;
struct termstruct inittyb, curttyb;
static void
setctty(){
if(STTY(&curttyb) < 0 || STTY2(&curttyb2) < 0)
perror("NetHack (setctty)");
}
/*
* Get initial state of terminal, set ospeed (for termcap routines)
* and switch off tab expansion if necessary.
* Called by startup() in termcap.c and after returning from ! or ^Z
*/
void
gettty(){
if(GTTY(&inittyb) < 0 || GTTY2(&inittyb2) < 0)
perror("NetHack (gettty)");
curttyb = inittyb;
curttyb2 = inittyb2;
ospeed = OSPEED(inittyb);
erase_char = inittyb.erase_sym;
kill_char = inittyb.kill_sym;
intr_char = inittyb2.intr_sym;
getioctls();
/* do not expand tabs - they might be needed inside a cm sequence */
if(curttyb.tabflgs & EXTABS) {
curttyb.tabflgs &= ~EXTABS;
setctty();
}
settty_needed = TRUE;
}
/* reset terminal to original state */
void
settty(s)
const char *s;
{
clear_screen();
end_screen();
if(s) Printf(s);
(void) fflush(stdout);
if(STTY(&inittyb) < 0 || STTY2(&inittyb2) < 0)
perror("NetHack (settty)");
flags.echo = (inittyb.echoflgs & ECHO) ? ON : OFF;
flags.cbreak = (CBRKON(inittyb.cbrkflgs & CBRKMASK)) ? ON : OFF;
curttyb.inputflags |= STRIPHI;
setioctls();
}
void
setftty(){
register int ef = 0; /* desired value of flags & ECHO */
#ifdef LINT /* cf = CBRKON(CBRKMASK); const expr to initialize is ok */
register int cf = 0;
#else
register int cf = CBRKON(CBRKMASK); /* desired value of flags & CBREAK */
#endif
register int change = 0;
flags.cbreak = ON;
flags.echo = OFF;
/* Should use (ECHO|CRMOD) here instead of ECHO */
if((curttyb.echoflgs & ECHO) != ef){
curttyb.echoflgs &= ~ECHO;
/* curttyb.echoflgs |= ef; */
change++;
}
if((curttyb.cbrkflgs & CBRKMASK) != cf){
curttyb.cbrkflgs &= ~CBRKMASK;
curttyb.cbrkflgs |= cf;
#ifdef USG
/* be satisfied with one character; no timeout */
curttyb.c_cc[VMIN] = 1; /* was VEOF */
curttyb.c_cc[VTIME] = 0; /* was VEOL */
#endif
change++;
}
if(!IS_7BIT(inittyb)) curttyb.inputflags &=~ STRIPHI;
/* If an interrupt character is used, it will be overriden and
* set to ^C.
*/
if(intr_char != nonesuch && curttyb2.intr_sym != '\003') {
curttyb2.intr_sym = '\003';
change++;
}
if(change) setctty();
start_screen();
}
void
intron() { /* enable kbd interupts if enabled when game started */
if(intr_char != nonesuch && curttyb2.intr_sym != '\003') {
curttyb2.intr_sym = '\003';
setctty();
}
}
void
introff() { /* disable kbd interrupts if required*/
if(curttyb2.intr_sym != nonesuch) {
curttyb2.intr_sym = nonesuch;
setctty();
}
}
/* fatal error */
/*VARARGS1*/
void
error VA_DECL(const char *,s)
VA_START(s);
VA_INIT(s, const char *);
if(settty_needed)
settty(NULL);
Vprintf(s,VA_ARGS);
(void) putchar('\n');
VA_END();
exit(1);
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.