874 lines
22 KiB
C
874 lines
22 KiB
C
/* terminal.c -- how to handle the physical terminal for Info.
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$Id: terminal.c,v 1.3 2004/04/11 17:56:46 karl Exp $
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Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1996, 1997, 1998,
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1999, 2001, 2002, 2004 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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Originally written by Brian Fox (bfox@ai.mit.edu). */
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#include "info.h"
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#include "terminal.h"
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#include "termdep.h"
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#include <sys/types.h>
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#include <signal.h>
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/* The Unix termcap interface code. */
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#ifdef HAVE_NCURSES_TERMCAP_H
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#include <ncurses/termcap.h>
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#else
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#ifdef HAVE_TERMCAP_H
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#include <termcap.h>
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#else
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/* On Solaris2, sys/types.h #includes sys/reg.h, which #defines PC.
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Unfortunately, PC is a global variable used by the termcap library. */
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#undef PC
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/* Termcap requires these variables, whether we access them or not. */
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char *BC, *UP;
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char PC; /* Pad character */
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short ospeed; /* Terminal output baud rate */
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extern int tgetnum (), tgetflag (), tgetent ();
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extern char *tgetstr (), *tgoto ();
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extern void tputs ();
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#endif /* not HAVE_TERMCAP_H */
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#endif /* not HAVE_NCURSES_TERMCAP_H */
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/* Function "hooks". If you make one of these point to a function, that
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function is called when appropriate instead of its namesake. Your
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function is called with exactly the same arguments that were passed
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to the namesake function. */
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VFunction *terminal_begin_inverse_hook = (VFunction *)NULL;
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VFunction *terminal_end_inverse_hook = (VFunction *)NULL;
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VFunction *terminal_prep_terminal_hook = (VFunction *)NULL;
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VFunction *terminal_unprep_terminal_hook = (VFunction *)NULL;
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VFunction *terminal_up_line_hook = (VFunction *)NULL;
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VFunction *terminal_down_line_hook = (VFunction *)NULL;
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VFunction *terminal_clear_screen_hook = (VFunction *)NULL;
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VFunction *terminal_clear_to_eol_hook = (VFunction *)NULL;
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VFunction *terminal_get_screen_size_hook = (VFunction *)NULL;
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VFunction *terminal_goto_xy_hook = (VFunction *)NULL;
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VFunction *terminal_initialize_terminal_hook = (VFunction *)NULL;
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VFunction *terminal_new_terminal_hook = (VFunction *)NULL;
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VFunction *terminal_put_text_hook = (VFunction *)NULL;
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VFunction *terminal_ring_bell_hook = (VFunction *)NULL;
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VFunction *terminal_write_chars_hook = (VFunction *)NULL;
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VFunction *terminal_scroll_terminal_hook = (VFunction *)NULL;
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/* **************************************************************** */
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/* */
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/* Terminal and Termcap */
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/* */
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/* **************************************************************** */
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/* A buffer which holds onto the current terminal description, and a pointer
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used to float within it. And the name of the terminal. */
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static char *term_buffer = NULL;
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static char *term_string_buffer = NULL;
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static char *term_name;
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/* Some strings to control terminal actions. These are output by tputs (). */
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static char *term_goto, *term_clreol, *term_cr, *term_clrpag;
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static char *term_begin_use, *term_end_use;
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static char *term_AL, *term_DL, *term_al, *term_dl;
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static char *term_keypad_on, *term_keypad_off;
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/* How to go up a line. */
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static char *term_up;
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/* How to go down a line. */
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static char *term_dn;
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/* An audible bell, if the terminal can be made to make noise. */
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static char *audible_bell;
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/* A visible bell, if the terminal can be made to flash the screen. */
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static char *visible_bell;
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/* The string to write to turn on the meta key, if this term has one. */
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static char *term_mm;
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/* The string to turn on inverse mode, if this term has one. */
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static char *term_invbeg;
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/* The string to turn off inverse mode, if this term has one. */
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static char *term_invend;
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/* Although I can't find any documentation that says this is supposed to
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return its argument, all the code I've looked at (termutils, less)
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does so, so fine. */
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static int
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output_character_function (int c)
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{
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putc (c, stdout);
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return c;
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}
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/* Macro to send STRING to the terminal. */
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#define send_to_terminal(string) \
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do { \
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if (string) \
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tputs (string, 1, output_character_function); \
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} while (0)
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/* Tell the terminal that we will be doing cursor addressable motion. */
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static void
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terminal_begin_using_terminal (void)
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{
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RETSIGTYPE (*sigsave) (int signum);
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if (term_keypad_on)
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send_to_terminal (term_keypad_on);
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if (!term_begin_use || !*term_begin_use)
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return;
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#ifdef SIGWINCH
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sigsave = signal (SIGWINCH, SIG_IGN);
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#endif
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send_to_terminal (term_begin_use);
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fflush (stdout);
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if (STREQ (term_name, "sun-cmd"))
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/* Without this fflush and sleep, running info in a shelltool or
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cmdtool (TERM=sun-cmd) with scrollbars loses -- the scrollbars are
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not restored properly.
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From: strube@physik3.gwdg.de (Hans Werner Strube). */
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sleep (1);
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#ifdef SIGWINCH
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signal (SIGWINCH, sigsave);
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#endif
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}
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/* Tell the terminal that we will not be doing any more cursor
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addressable motion. */
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static void
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terminal_end_using_terminal (void)
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{
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RETSIGTYPE (*sigsave) (int signum);
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if (term_keypad_off)
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send_to_terminal (term_keypad_off);
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if (!term_end_use || !*term_end_use)
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return;
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#ifdef SIGWINCH
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sigsave = signal (SIGWINCH, SIG_IGN);
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#endif
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send_to_terminal (term_end_use);
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fflush (stdout);
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if (STREQ (term_name, "sun-cmd"))
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/* See comments at other sleep. */
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sleep (1);
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#ifdef SIGWINCH
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signal (SIGWINCH, sigsave);
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#endif
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}
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/* **************************************************************** */
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/* */
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/* Necessary Terminal Functions */
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/* */
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/* **************************************************************** */
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/* The functions and variables on this page implement the user visible
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portion of the terminal interface. */
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/* The width and height of the terminal. */
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int screenwidth, screenheight;
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/* Non-zero means this terminal can't really do anything. */
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int terminal_is_dumb_p = 0;
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/* Non-zero means that this terminal has a meta key. */
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int terminal_has_meta_p = 0;
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/* Non-zero means that this terminal can produce a visible bell. */
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int terminal_has_visible_bell_p = 0;
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/* Non-zero means to use that visible bell if at all possible. */
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int terminal_use_visible_bell_p = 0;
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/* Non-zero means that the terminal can do scrolling. */
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int terminal_can_scroll = 0;
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/* The key sequences output by the arrow keys, if this terminal has any. */
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char *term_ku = NULL;
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char *term_kd = NULL;
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char *term_kr = NULL;
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char *term_kl = NULL;
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char *term_kP = NULL; /* page-up */
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char *term_kN = NULL; /* page-down */
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char *term_kh = NULL; /* home */
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char *term_ke = NULL; /* end */
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char *term_kD = NULL; /* delete */
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char *term_ki = NULL; /* ins */
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char *term_kx = NULL; /* del */
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/* Move the cursor to the terminal location of X and Y. */
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void
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terminal_goto_xy (int x, int y)
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{
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if (terminal_goto_xy_hook)
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(*terminal_goto_xy_hook) (x, y);
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else
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{
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if (term_goto)
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tputs (tgoto (term_goto, x, y), 1, output_character_function);
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}
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}
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/* Print STRING to the terminal at the current position. */
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void
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terminal_put_text (char *string)
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{
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if (terminal_put_text_hook)
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(*terminal_put_text_hook) (string);
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else
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{
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printf ("%s", string);
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}
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}
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/* Print NCHARS from STRING to the terminal at the current position. */
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void
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terminal_write_chars (char *string, int nchars)
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{
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if (terminal_write_chars_hook)
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(*terminal_write_chars_hook) (string, nchars);
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else
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{
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if (nchars)
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fwrite (string, 1, nchars, stdout);
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}
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}
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/* Clear from the current position of the cursor to the end of the line. */
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void
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terminal_clear_to_eol (void)
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{
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if (terminal_clear_to_eol_hook)
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(*terminal_clear_to_eol_hook) ();
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else
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{
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send_to_terminal (term_clreol);
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}
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}
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/* Clear the entire terminal screen. */
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void
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terminal_clear_screen (void)
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{
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if (terminal_clear_screen_hook)
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(*terminal_clear_screen_hook) ();
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else
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{
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send_to_terminal (term_clrpag);
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}
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}
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/* Move the cursor up one line. */
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void
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terminal_up_line (void)
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{
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if (terminal_up_line_hook)
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(*terminal_up_line_hook) ();
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else
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{
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send_to_terminal (term_up);
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}
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}
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/* Move the cursor down one line. */
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void
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terminal_down_line (void)
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{
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if (terminal_down_line_hook)
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(*terminal_down_line_hook) ();
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else
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{
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send_to_terminal (term_dn);
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}
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}
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/* Turn on reverse video if possible. */
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void
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terminal_begin_inverse (void)
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{
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if (terminal_begin_inverse_hook)
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(*terminal_begin_inverse_hook) ();
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else
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{
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send_to_terminal (term_invbeg);
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}
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}
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/* Turn off reverse video if possible. */
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void
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terminal_end_inverse (void)
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{
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if (terminal_end_inverse_hook)
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(*terminal_end_inverse_hook) ();
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else
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{
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send_to_terminal (term_invend);
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}
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}
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/* Ring the terminal bell. The bell is run visibly if it both has one and
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terminal_use_visible_bell_p is non-zero. */
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void
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terminal_ring_bell (void)
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{
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if (terminal_ring_bell_hook)
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(*terminal_ring_bell_hook) ();
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else
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{
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if (terminal_has_visible_bell_p && terminal_use_visible_bell_p)
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send_to_terminal (visible_bell);
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else
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send_to_terminal (audible_bell);
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}
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}
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/* At the line START, delete COUNT lines from the terminal display. */
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static void
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terminal_delete_lines (int start, int count)
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{
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int lines;
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/* Normalize arguments. */
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if (start < 0)
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start = 0;
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lines = screenheight - start;
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terminal_goto_xy (0, start);
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if (term_DL)
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tputs (tgoto (term_DL, 0, count), lines, output_character_function);
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else
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{
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while (count--)
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tputs (term_dl, lines, output_character_function);
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}
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fflush (stdout);
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}
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/* At the line START, insert COUNT lines in the terminal display. */
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static void
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terminal_insert_lines (int start, int count)
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{
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int lines;
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/* Normalize arguments. */
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if (start < 0)
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start = 0;
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lines = screenheight - start;
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terminal_goto_xy (0, start);
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if (term_AL)
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tputs (tgoto (term_AL, 0, count), lines, output_character_function);
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else
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{
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while (count--)
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tputs (term_al, lines, output_character_function);
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}
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fflush (stdout);
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}
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/* Scroll an area of the terminal, starting with the region from START
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to END, AMOUNT lines. If AMOUNT is negative, the lines are scrolled
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towards the top of the screen, else they are scrolled towards the
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bottom of the screen. */
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void
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terminal_scroll_terminal (int start, int end, int amount)
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{
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if (!terminal_can_scroll)
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return;
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/* Any scrolling at all? */
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if (amount == 0)
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return;
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if (terminal_scroll_terminal_hook)
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(*terminal_scroll_terminal_hook) (start, end, amount);
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else
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{
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/* If we are scrolling down, delete AMOUNT lines at END. Then insert
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AMOUNT lines at START. */
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if (amount > 0)
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{
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terminal_delete_lines (end, amount);
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terminal_insert_lines (start, amount);
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}
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/* If we are scrolling up, delete AMOUNT lines before START. This
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actually does the upwards scroll. Then, insert AMOUNT lines
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after the already scrolled region (i.e., END - AMOUNT). */
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if (amount < 0)
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{
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int abs_amount = -amount;
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terminal_delete_lines (start - abs_amount, abs_amount);
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terminal_insert_lines (end - abs_amount, abs_amount);
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}
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}
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}
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/* Re-initialize the terminal considering that the TERM/TERMCAP variable
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has changed. */
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void
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terminal_new_terminal (char *terminal_name)
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{
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if (terminal_new_terminal_hook)
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(*terminal_new_terminal_hook) (terminal_name);
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else
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{
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terminal_initialize_terminal (terminal_name);
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}
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}
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/* Set the global variables SCREENWIDTH and SCREENHEIGHT. */
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void
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terminal_get_screen_size (void)
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{
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if (terminal_get_screen_size_hook)
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(*terminal_get_screen_size_hook) ();
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else
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{
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screenwidth = screenheight = 0;
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#if defined (TIOCGWINSZ)
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{
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struct winsize window_size;
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if (ioctl (fileno (stdout), TIOCGWINSZ, &window_size) == 0)
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{
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screenwidth = (int) window_size.ws_col;
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screenheight = (int) window_size.ws_row;
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}
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}
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#endif /* TIOCGWINSZ */
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/* Environment variable COLUMNS overrides setting of "co". */
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if (screenwidth <= 0)
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{
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char *sw = getenv ("COLUMNS");
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if (sw)
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screenwidth = atoi (sw);
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if (screenwidth <= 0)
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screenwidth = tgetnum ("co");
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}
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/* Environment variable LINES overrides setting of "li". */
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if (screenheight <= 0)
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{
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char *sh = getenv ("LINES");
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if (sh)
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screenheight = atoi (sh);
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if (screenheight <= 0)
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screenheight = tgetnum ("li");
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}
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/* If all else fails, default to 80x24 terminal. */
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if (screenwidth <= 0)
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screenwidth = 80;
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if (screenheight <= 0)
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screenheight = 24;
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}
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}
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/* Initialize the terminal which is known as TERMINAL_NAME. If this
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terminal doesn't have cursor addressability, `terminal_is_dumb_p'
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becomes nonzero. The variables SCREENHEIGHT and SCREENWIDTH are set
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to the dimensions that this terminal actually has. The variable
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TERMINAL_HAS_META_P becomes nonzero if this terminal supports a Meta
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key. Finally, the terminal screen is cleared. */
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void
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terminal_initialize_terminal (char *terminal_name)
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{
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char *buffer;
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terminal_is_dumb_p = 0;
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if (terminal_initialize_terminal_hook)
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{
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(*terminal_initialize_terminal_hook) (terminal_name);
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return;
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}
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term_name = terminal_name ? terminal_name : getenv ("TERM");
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if (!term_name)
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term_name = "dumb";
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if (!term_string_buffer)
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term_string_buffer = xmalloc (2048);
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if (!term_buffer)
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term_buffer = xmalloc (2048);
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buffer = term_string_buffer;
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term_clrpag = term_cr = term_clreol = NULL;
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/* HP-UX 11.x returns 0 for OK --jeff.hull@state.co.us. */
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if (tgetent (term_buffer, term_name) < 0)
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{
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terminal_is_dumb_p = 1;
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screenwidth = 80;
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screenheight = 24;
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term_cr = "\r";
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term_up = term_dn = audible_bell = visible_bell = NULL;
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term_ku = term_kd = term_kl = term_kr = NULL;
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term_kP = term_kN = NULL;
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term_kh = term_ke = NULL;
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term_kD = NULL;
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return;
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}
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BC = tgetstr ("pc", &buffer);
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PC = BC ? *BC : 0;
|
||
|
||
#if defined (HAVE_TERMIOS_H)
|
||
{
|
||
struct termios ti;
|
||
if (tcgetattr (fileno(stdout), &ti) != -1)
|
||
ospeed = cfgetospeed (&ti);
|
||
else
|
||
ospeed = B9600;
|
||
}
|
||
#else
|
||
# if defined (TIOCGETP)
|
||
{
|
||
struct sgttyb sg;
|
||
|
||
if (ioctl (fileno (stdout), TIOCGETP, &sg) != -1)
|
||
ospeed = sg.sg_ospeed;
|
||
else
|
||
ospeed = B9600;
|
||
}
|
||
# else
|
||
ospeed = B9600;
|
||
# endif /* !TIOCGETP */
|
||
#endif
|
||
|
||
term_cr = tgetstr ("cr", &buffer);
|
||
term_clreol = tgetstr ("ce", &buffer);
|
||
term_clrpag = tgetstr ("cl", &buffer);
|
||
term_goto = tgetstr ("cm", &buffer);
|
||
|
||
/* Find out about this terminal's scrolling capability. */
|
||
term_AL = tgetstr ("AL", &buffer);
|
||
term_DL = tgetstr ("DL", &buffer);
|
||
term_al = tgetstr ("al", &buffer);
|
||
term_dl = tgetstr ("dl", &buffer);
|
||
|
||
terminal_can_scroll = ((term_AL || term_al) && (term_DL || term_dl));
|
||
|
||
term_invbeg = tgetstr ("mr", &buffer);
|
||
if (term_invbeg)
|
||
term_invend = tgetstr ("me", &buffer);
|
||
else
|
||
term_invend = NULL;
|
||
|
||
if (!term_cr)
|
||
term_cr = "\r";
|
||
|
||
terminal_get_screen_size ();
|
||
|
||
term_up = tgetstr ("up", &buffer);
|
||
term_dn = tgetstr ("dn", &buffer);
|
||
visible_bell = tgetstr ("vb", &buffer);
|
||
terminal_has_visible_bell_p = (visible_bell != NULL);
|
||
audible_bell = tgetstr ("bl", &buffer);
|
||
if (!audible_bell)
|
||
audible_bell = "\007";
|
||
term_begin_use = tgetstr ("ti", &buffer);
|
||
term_end_use = tgetstr ("te", &buffer);
|
||
|
||
term_keypad_on = tgetstr ("ks", &buffer);
|
||
term_keypad_off = tgetstr ("ke", &buffer);
|
||
|
||
/* Check to see if this terminal has a meta key. */
|
||
terminal_has_meta_p = (tgetflag ("km") || tgetflag ("MT"));
|
||
if (terminal_has_meta_p)
|
||
{
|
||
term_mm = tgetstr ("mm", &buffer);
|
||
}
|
||
else
|
||
{
|
||
term_mm = NULL;
|
||
}
|
||
|
||
/* Attempt to find the arrow keys. */
|
||
term_ku = tgetstr ("ku", &buffer);
|
||
term_kd = tgetstr ("kd", &buffer);
|
||
term_kr = tgetstr ("kr", &buffer);
|
||
term_kl = tgetstr ("kl", &buffer);
|
||
|
||
term_kP = tgetstr ("kP", &buffer);
|
||
term_kN = tgetstr ("kN", &buffer);
|
||
|
||
#if defined(INFOKEY)
|
||
term_kh = tgetstr ("kh", &buffer);
|
||
term_ke = tgetstr ("@7", &buffer);
|
||
term_ki = tgetstr ("kI", &buffer);
|
||
term_kx = tgetstr ("kD", &buffer);
|
||
#endif /* defined(INFOKEY) */
|
||
|
||
/* Home and end keys. */
|
||
term_kh = tgetstr ("kh", &buffer);
|
||
term_ke = tgetstr ("@7", &buffer);
|
||
|
||
term_kD = tgetstr ("kD", &buffer);
|
||
|
||
/* If this terminal is not cursor addressable, then it is really dumb. */
|
||
if (!term_goto)
|
||
terminal_is_dumb_p = 1;
|
||
}
|
||
|
||
/* How to read characters from the terminal. */
|
||
|
||
#if defined (HAVE_TERMIOS_H)
|
||
struct termios original_termios, ttybuff;
|
||
#else
|
||
# if defined (HAVE_TERMIO_H)
|
||
/* A buffer containing the terminal mode flags upon entry to info. */
|
||
struct termio original_termio, ttybuff;
|
||
# else /* !HAVE_TERMIO_H */
|
||
/* Buffers containing the terminal mode flags upon entry to info. */
|
||
int original_tty_flags = 0;
|
||
int original_lmode;
|
||
struct sgttyb ttybuff;
|
||
|
||
# if defined(TIOCGETC) && defined(M_XENIX)
|
||
/* SCO 3.2v5.0.2 defines but does not support TIOCGETC. Gak. Maybe
|
||
better fix would be to use Posix termios in preference. --gildea,
|
||
1jul99. */
|
||
# undef TIOCGETC
|
||
# endif
|
||
|
||
# if defined (TIOCGETC)
|
||
/* A buffer containing the terminal interrupt characters upon entry
|
||
to Info. */
|
||
struct tchars original_tchars;
|
||
# endif
|
||
|
||
# if defined (TIOCGLTC)
|
||
/* A buffer containing the local terminal mode characters upon entry
|
||
to Info. */
|
||
struct ltchars original_ltchars;
|
||
# endif
|
||
# endif /* !HAVE_TERMIO_H */
|
||
#endif /* !HAVE_TERMIOS_H */
|
||
|
||
/* Prepare to start using the terminal to read characters singly. */
|
||
void
|
||
terminal_prep_terminal (void)
|
||
{
|
||
int tty;
|
||
|
||
if (terminal_prep_terminal_hook)
|
||
{
|
||
(*terminal_prep_terminal_hook) ();
|
||
return;
|
||
}
|
||
|
||
terminal_begin_using_terminal ();
|
||
|
||
tty = fileno (stdin);
|
||
|
||
#if defined (HAVE_TERMIOS_H)
|
||
tcgetattr (tty, &original_termios);
|
||
tcgetattr (tty, &ttybuff);
|
||
#else
|
||
# if defined (HAVE_TERMIO_H)
|
||
ioctl (tty, TCGETA, &original_termio);
|
||
ioctl (tty, TCGETA, &ttybuff);
|
||
# endif
|
||
#endif
|
||
|
||
#if defined (HAVE_TERMIOS_H) || defined (HAVE_TERMIO_H)
|
||
ttybuff.c_iflag &= (~ISTRIP & ~INLCR & ~IGNCR & ~ICRNL & ~IXON);
|
||
/* These output flags are not part of POSIX, so only use them if they
|
||
are defined. */
|
||
#ifdef ONLCR
|
||
ttybuff.c_oflag &= ~ONLCR ;
|
||
#endif
|
||
#ifdef OCRNL
|
||
ttybuff.c_oflag &= ~OCRNL;
|
||
#endif
|
||
ttybuff.c_lflag &= (~ICANON & ~ECHO);
|
||
|
||
ttybuff.c_cc[VMIN] = 1;
|
||
ttybuff.c_cc[VTIME] = 0;
|
||
|
||
if (ttybuff.c_cc[VINTR] == '\177')
|
||
ttybuff.c_cc[VINTR] = -1;
|
||
|
||
if (ttybuff.c_cc[VQUIT] == '\177')
|
||
ttybuff.c_cc[VQUIT] = -1;
|
||
|
||
#ifdef VLNEXT
|
||
if (ttybuff.c_cc[VLNEXT] == '\026')
|
||
ttybuff.c_cc[VLNEXT] = -1;
|
||
#endif /* VLNEXT */
|
||
#endif /* TERMIOS or TERMIO */
|
||
|
||
/* cf. emacs/src/sysdep.c for being sure output is on. */
|
||
#if defined (HAVE_TERMIOS_H)
|
||
/* linux kernel 2.2.x needs a TCOFF followed by a TCOON to turn output
|
||
back on if the user presses ^S at the very beginning; just a TCOON
|
||
doesn't work. --Kevin Ryde <user42@zip.com.au>, 16jun2000. */
|
||
tcsetattr (tty, TCSANOW, &ttybuff);
|
||
# ifdef TCOON
|
||
tcflow (tty, TCOOFF);
|
||
tcflow (tty, TCOON);
|
||
# endif
|
||
#else
|
||
# if defined (HAVE_TERMIO_H)
|
||
ioctl (tty, TCSETA, &ttybuff);
|
||
# ifdef TCXONC
|
||
ioctl (tty, TCXONC, 1);
|
||
# endif
|
||
# endif
|
||
#endif
|
||
|
||
#if !defined (HAVE_TERMIOS_H) && !defined (HAVE_TERMIO_H)
|
||
ioctl (tty, TIOCGETP, &ttybuff);
|
||
|
||
if (!original_tty_flags)
|
||
original_tty_flags = ttybuff.sg_flags;
|
||
|
||
/* Make this terminal pass 8 bits around while we are using it. */
|
||
# if defined (PASS8)
|
||
ttybuff.sg_flags |= PASS8;
|
||
# endif /* PASS8 */
|
||
|
||
# if defined (TIOCLGET) && defined (LPASS8)
|
||
{
|
||
int flags;
|
||
ioctl (tty, TIOCLGET, &flags);
|
||
original_lmode = flags;
|
||
flags |= LPASS8;
|
||
ioctl (tty, TIOCLSET, &flags);
|
||
}
|
||
# endif /* TIOCLGET && LPASS8 */
|
||
|
||
# if defined (TIOCGETC)
|
||
{
|
||
struct tchars temp;
|
||
|
||
ioctl (tty, TIOCGETC, &original_tchars);
|
||
temp = original_tchars;
|
||
|
||
/* C-s and C-q. */
|
||
temp.t_startc = temp.t_stopc = -1;
|
||
|
||
/* Often set to C-d. */
|
||
temp.t_eofc = -1;
|
||
|
||
/* If the a quit or interrupt character conflicts with one of our
|
||
commands, then make it go away. */
|
||
if (temp.t_intrc == '\177')
|
||
temp.t_intrc = -1;
|
||
|
||
if (temp.t_quitc == '\177')
|
||
temp.t_quitc = -1;
|
||
|
||
ioctl (tty, TIOCSETC, &temp);
|
||
}
|
||
# endif /* TIOCGETC */
|
||
|
||
# if defined (TIOCGLTC)
|
||
{
|
||
struct ltchars temp;
|
||
|
||
ioctl (tty, TIOCGLTC, &original_ltchars);
|
||
temp = original_ltchars;
|
||
|
||
/* Make the interrupt keys go away. Just enough to make people happy. */
|
||
temp.t_lnextc = -1; /* C-v. */
|
||
temp.t_dsuspc = -1; /* C-y. */
|
||
temp.t_flushc = -1; /* C-o. */
|
||
ioctl (tty, TIOCSLTC, &temp);
|
||
}
|
||
# endif /* TIOCGLTC */
|
||
|
||
ttybuff.sg_flags &= ~ECHO;
|
||
ttybuff.sg_flags |= CBREAK;
|
||
ioctl (tty, TIOCSETN, &ttybuff);
|
||
#endif /* !HAVE_TERMIOS_H && !HAVE_TERMIO_H */
|
||
}
|
||
|
||
/* Restore the tty settings back to what they were before we started using
|
||
this terminal. */
|
||
void
|
||
terminal_unprep_terminal (void)
|
||
{
|
||
int tty;
|
||
|
||
if (terminal_unprep_terminal_hook)
|
||
{
|
||
(*terminal_unprep_terminal_hook) ();
|
||
return;
|
||
}
|
||
|
||
tty = fileno (stdin);
|
||
|
||
#if defined (HAVE_TERMIOS_H)
|
||
tcsetattr (tty, TCSANOW, &original_termios);
|
||
#else
|
||
# if defined (HAVE_TERMIO_H)
|
||
ioctl (tty, TCSETA, &original_termio);
|
||
# else /* !HAVE_TERMIO_H */
|
||
ioctl (tty, TIOCGETP, &ttybuff);
|
||
ttybuff.sg_flags = original_tty_flags;
|
||
ioctl (tty, TIOCSETN, &ttybuff);
|
||
|
||
# if defined (TIOCGETC)
|
||
ioctl (tty, TIOCSETC, &original_tchars);
|
||
# endif /* TIOCGETC */
|
||
|
||
# if defined (TIOCGLTC)
|
||
ioctl (tty, TIOCSLTC, &original_ltchars);
|
||
# endif /* TIOCGLTC */
|
||
|
||
# if defined (TIOCLGET) && defined (LPASS8)
|
||
ioctl (tty, TIOCLSET, &original_lmode);
|
||
# endif /* TIOCLGET && LPASS8 */
|
||
|
||
# endif /* !HAVE_TERMIO_H */
|
||
#endif /* !HAVE_TERMIOS_H */
|
||
terminal_end_using_terminal ();
|
||
}
|
||
|
||
#ifdef __MSDOS__
|
||
# include "pcterm.c"
|
||
#endif
|