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/* gitkeys.c -- An utility designed to help users to find out what is the
escape sequences sent by a particular key. Users can use this to set up
their configuration files. */
/* Copyright (C) 1993-2000, 2006-2007 Free Software Foundation, Inc.
This file is part of gnuit.
gnuit is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published
by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
gnuit is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public
License along with this program. If not, see
http://www.gnu.org/licenses/. */
/* Written by Tudor Hulubei and Andrei Pitis. */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#else /* !HAVE_STDLIB_H */
#include "ansi_stdlib.h"
#endif /* !HAVE_STDLIB_H */
#include <sys/types.h>
#include <sys/ioctl.h>
#ifdef HAVE_POSIX_TTY
#include <termios.h>
#else
#ifdef HAVE_SYSTEMV_TTY
#include <termio.h>
#else
#include <sgtty.h>
#endif
#endif
#include <signal.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif /* HAVE_UNISTD_H */
#include "stdc.h"
#include "xio.h"
/* Stolen from GNU Emacs. */
#ifdef _POSIX_VDISABLE
#define CDISABLE _POSIX_VDISABLE
#else /* not _POSIX_VDISABLE */
#ifdef CDEL
#undef CDISABLE
#define CDISABLE CDEL
#else /* not CDEL */
#define CDISABLE 255
#endif /* not CDEL */
#endif /* not _POSIX_VDISABLE */
#ifdef HAVE_LINUX
speed_t ospeed;
#else /* !HAVE_LINUX */
short ospeed;
#endif /* !HAVE_LINUX */
#define TTY_OUTPUT 1
#ifdef HAVE_POSIX_TTY
static struct termios old_term;
static struct termios new_term;
#else
#ifdef HAVE_SYSTEMV_TTY
static struct termio old_term;
static struct termio new_term;
#else
static struct sgttyb old_arg;
static struct tchars old_targ;
static struct ltchars old_ltarg;
static struct sgttyb new_arg;
static struct tchars new_targ;
static struct ltchars new_ltarg;
/* NextStep doesn't define TILDE. */
#ifndef TILDE
#define TILDE 0
#endif
#endif /* HAVE_SYSTEMV_TTY */
#endif /* HAVE_POSIX_TTY */
char *copyright =
"%s %s - Display key sequence utility\n\
GIT is free software; you can redistribute it and/or modify it under the\n\
terms of the GNU General Public License as published by the Free Software\n\
Foundation; either version 2, or (at your option) any later version.\n\
Copyright (C) 1993-1998 Free Software Foundation, Inc.\n\
Written by Tudor Hulubei and Andrei Pitis, students at PUB, Romania\n\
\nPress SPACE when done.\n\n";
extern RETSIGTYPE do_exit PROTO ((int));
void
tty_init()
{
/* This simply doesn't fit into the current scheme. Maybe the tt
stuff should be moved into a separate library. This is clearly
a self contained function. */
{
#ifdef HAVE_POSIX_TTY
tcgetattr(TTY_OUTPUT, &old_term);
new_term = old_term;
new_term.c_iflag &= ~(IXON | ICRNL | IGNCR | INLCR | IGNBRK | BRKINT);
new_term.c_oflag &= ~OPOST;
new_term.c_lflag |= ISIG | NOFLSH;
new_term.c_lflag &= ~(ICANON | ECHO);
/* I think we will always have these ones: */
new_term.c_cc[VINTR] = CDISABLE;
new_term.c_cc[VQUIT] = CDISABLE;
#ifdef VSTART
new_term.c_cc[VSTART] = CDISABLE;
#endif
#ifdef VSTOP
new_term.c_cc[VSTOP] = CDISABLE;
#endif
new_term.c_cc[VMIN] = 1;
new_term.c_cc[VTIME] = 0;
/* ... but not always these ones: (in fact I am not sure if I
really need to overwrite all these, but just in case... */
#ifdef VERASE
new_term.c_cc[VERASE] = CDISABLE;
#endif
#ifdef VKILL
new_term.c_cc[VKILL] = CDISABLE;
#endif
#ifdef VEOL
new_term.c_cc[VEOL] = CDISABLE;
#endif
#ifdef VEOL2
new_term.c_cc[VEOL2] = CDISABLE;
#endif
#ifdef VSWTCH
new_term.c_cc[VSWTCH] = CDISABLE;
#endif
#ifdef VSUSP
new_term.c_cc[VSUSP] = CDISABLE;
#endif
#ifdef VDSUSP
new_term.c_cc[VDSUSP] = CDISABLE;
#endif
#ifdef VREPRINT
new_term.c_cc[VREPRINT] = CDISABLE;
#endif
#ifdef VDISCARD
new_term.c_cc[VDISCARD] = CDISABLE;
#endif
#ifdef VWERASE
new_term.c_cc[VWERASE] = CDISABLE;
#endif
#ifdef VLNEXT
new_term.c_cc[VLNEXT] = CDISABLE;
#endif
tcsetattr(TTY_OUTPUT, TCSADRAIN, &new_term);
ospeed = cfgetospeed(&new_term);
#else
#ifdef HAVE_SYSTEMV_TTY
ioctl(TTY_OUTPUT, TCGETA, &old_term);
new_term = old_term;
new_term.c_iflag &= ~(IXON | ICRNL | IGNCR | INLCR);
new_term.c_oflag = 0;
new_term.c_lflag = 0;
/* I think we will always have these: */
new_term.c_cc[VINTR] = CDISABLE;
new_term.c_cc[VQUIT] = CDISABLE;
#ifdef VSTART
new_term.c_cc[VSTART] = CDISABLE;
#endif
#ifdef VSTOP
new_term.c_cc[VSTOP] = CDISABLE;
#endif
new_term.c_cc[VMIN] = 1;
new_term.c_cc[VTIME] = 0;
/* ... but not always these: (in fact I am not sure if I really
need to overwrite all these, but just in case... */
#ifdef VERASE
new_term.c_cc[VERASE] = CDISABLE;
#endif
#ifdef VKILL
new_term.c_cc[VKILL] = CDISABLE;
#endif
#ifdef VEOL
new_term.c_cc[VEOL] = CDISABLE;
#endif
#ifdef VEOL2
new_term.c_cc[VEOL2] = CDISABLE;
#endif
#ifdef VSWTCH
new_term.c_cc[VSWTCH] = CDISABLE;
#endif
#ifdef VSUSP
new_term.c_cc[VSUSP] = CDISABLE;
#endif
#ifdef VDSUSP
new_term.c_cc[VDSUSP] = CDISABLE;
#endif
#ifdef VREPRINT
new_term.c_cc[VREPRINT] = CDISABLE;
#endif
#ifdef VDISCARD
new_term.c_cc[VDISCARD] = CDISABLE;
#endif
#ifdef VWERASE
new_term.c_cc[VWERASE] = CDISABLE;
#endif
#ifdef VLNEXT
new_term.c_cc[VLNEXT] = CDISABLE;
#endif
ioctl(TTY_OUTPUT, TCSETAW, &new_term);
ospeed = new_term.c_cflag & CBAUD;
#else
ioctl(TTY_OUTPUT, TIOCGETP, &old_arg);
ioctl(TTY_OUTPUT, TIOCGETC, &old_targ);
ioctl(TTY_OUTPUT, TIOCGLTC, &old_ltarg);
new_arg = old_arg;
new_targ = old_targ;
new_ltarg = old_ltarg;
new_arg.sg_flags = ((old_arg.sg_flags &
~(ECHO | CRMOD | XTABS | ALLDELAY | TILDE)) | CBREAK);
new_targ.t_intrc = CDISABLE;
new_targ.t_quitc = CDISABLE;
new_targ.t_stopc = CDISABLE;
new_targ.t_startc = CDISABLE;
new_targ.t_eofc = CDISABLE;
new_targ.t_brkc = CDISABLE;
new_ltarg.t_lnextc = CDISABLE;
new_ltarg.t_flushc = CDISABLE;
new_ltarg.t_werasc = CDISABLE;
new_ltarg.t_rprntc = CDISABLE;
new_ltarg.t_dsuspc = CDISABLE; /* DSUSPC (delayed SUSPC, ^Y). */
new_ltarg.t_suspc = CDISABLE;
ioctl(TTY_OUTPUT, TIOCSETN, &new_arg);
ioctl(TTY_OUTPUT, TIOCSETC, &new_targ);
ioctl(TTY_OUTPUT, TIOCSLTC, &new_ltarg);
ospeed = new_arg.sg_ospeed;
#endif /* HAVE_SYSTEMV_TTY */
#endif /* HAVE_POSIX_TTY */
/* Try to make sure the terminal is not locked. */
#ifdef TCXONC
#ifdef __QNX__
{
int value = 1;
ioctl (TTY_OUTPUT, TCXONC, &value);
}
#else
ioctl(TTY_OUTPUT, TCXONC, 1);
#endif
#endif
#ifndef APOLLO
#ifdef TIOCSTART
ioctl(TTY_OUTPUT, TIOCSTART, 0);
#endif
#endif
#ifdef HAVE_POSIX_TTY
#ifdef TCOON
tcflow(TTY_OUTPUT, TCOON);
#endif
#endif
}
}
void
tty_end()
{
#ifdef HAVE_POSIX_TTY
tcsetattr(TTY_OUTPUT, TCSADRAIN, &old_term);
#else
#ifdef HAVE_SYSTEMV_TTY
ioctl(TTY_OUTPUT, TCSETAW, &old_term);
#else
ioctl(TTY_OUTPUT, TIOCSETN, &old_arg);
ioctl(TTY_OUTPUT, TIOCSETC, &old_targ);
ioctl(TTY_OUTPUT, TIOCSLTC, &old_ltarg);
#endif /* HAVE_SYSTEMV_TTY */
#endif /* HAVE_POSIX_TTY */
}
RETSIGTYPE
do_exit(signum)
int signum;
{
signal(signum, do_exit);
tty_end();
exit(1);
}
int
main()
{
char c;
printf(copyright, PRODUCT, VERSION);
signal(SIGTERM, do_exit);
tty_init();
#ifdef SIGTSTP
signal(SIGTSTP, SIG_IGN);
#endif
#ifdef SIGCONT
signal(SIGCONT, SIG_IGN);
#endif
for (;;)
{
read(0, &c, 1);
if (c == ' ')
break;
printf("%x ", (unsigned char)c);
fflush(stdout);
}
tty_end();
printf("\n");
return 0;
}
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