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/* rltty.c -- functions to prepare and restore the terminal for readline's
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use. */
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/* Copyright (C) 1992-2017 Free Software Foundation, Inc.
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This file is part of the GNU Readline Library (Readline), a library
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for reading lines of text with interactive input and history editing.
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Readline 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 3 of the License, or
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(at your option) any later version.
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Readline 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 Readline. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define READLINE_LIBRARY
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#if defined (HAVE_CONFIG_H)
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# include <config.h>
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#endif
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#include <sys/types.h>
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#include <signal.h>
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#include <errno.h>
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#include <stdio.h>
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#if defined (HAVE_UNISTD_H)
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# include <unistd.h>
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#endif /* HAVE_UNISTD_H */
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#include "rldefs.h"
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#include "rltty.h"
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#if defined (HAVE_SYS_IOCTL_H)
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# include <sys/ioctl.h> /* include for declaration of ioctl */
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#endif
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#include "readline.h"
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#include "rlprivate.h"
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#if !defined (errno)
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extern int errno;
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#endif /* !errno */
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rl_vintfunc_t *rl_prep_term_function = rl_prep_terminal;
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rl_voidfunc_t *rl_deprep_term_function = rl_deprep_terminal;
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static void set_winsize PARAMS((int));
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/* **************************************************************** */
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/* */
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/* Saving and Restoring the TTY */
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/* */
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/* **************************************************************** */
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/* Non-zero means that the terminal is in a prepped state. There are several
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flags that are OR'd in to denote whether or not we have sent various
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init strings to the terminal. */
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#define TPX_PREPPED 0x01
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#define TPX_BRACKPASTE 0x02
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#define TPX_METAKEY 0x04
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static int terminal_prepped;
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static _RL_TTY_CHARS _rl_tty_chars, _rl_last_tty_chars;
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/* If non-zero, means that this process has called tcflow(fd, TCOOFF)
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and output is suspended. */
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#if defined (__ksr1__)
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static int ksrflow;
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#endif
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/* Dummy call to force a backgrounded readline to stop before it tries
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to get the tty settings. */
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static void
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set_winsize (tty)
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int tty;
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{
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#if defined (TIOCGWINSZ)
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struct winsize w;
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if (ioctl (tty, TIOCGWINSZ, &w) == 0)
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(void) ioctl (tty, TIOCSWINSZ, &w);
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#endif /* TIOCGWINSZ */
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}
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#if defined (NO_TTY_DRIVER)
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/* Nothing */
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#elif defined (NEW_TTY_DRIVER)
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/* Values for the `flags' field of a struct bsdtty. This tells which
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elements of the struct bsdtty have been fetched from the system and
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are valid. */
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#define SGTTY_SET 0x01
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#define LFLAG_SET 0x02
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#define TCHARS_SET 0x04
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#define LTCHARS_SET 0x08
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struct bsdtty {
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struct sgttyb sgttyb; /* Basic BSD tty driver information. */
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int lflag; /* Local mode flags, like LPASS8. */
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#if defined (TIOCGETC)
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struct tchars tchars; /* Terminal special characters, including ^S and ^Q. */
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#endif
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#if defined (TIOCGLTC)
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struct ltchars ltchars; /* 4.2 BSD editing characters */
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#endif
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int flags; /* Bitmap saying which parts of the struct are valid. */
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};
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#define TIOTYPE struct bsdtty
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static TIOTYPE otio;
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static void save_tty_chars PARAMS((TIOTYPE *));
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static int _get_tty_settings PARAMS((int, TIOTYPE *));
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static int get_tty_settings PARAMS((int, TIOTYPE *));
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static int _set_tty_settings PARAMS((int, TIOTYPE *));
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static int set_tty_settings PARAMS((int, TIOTYPE *));
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static void prepare_terminal_settings PARAMS((int, TIOTYPE, TIOTYPE *));
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static void set_special_char PARAMS((Keymap, TIOTYPE *, int, rl_command_func_t *));
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static void
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save_tty_chars (TIOTYPE *tiop)
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{
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_rl_last_tty_chars = _rl_tty_chars;
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if (tiop->flags & SGTTY_SET)
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{
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_rl_tty_chars.t_erase = tiop->sgttyb.sg_erase;
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_rl_tty_chars.t_kill = tiop->sgttyb.sg_kill;
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}
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if (tiop->flags & TCHARS_SET)
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{
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_rl_intr_char = _rl_tty_chars.t_intr = tiop->tchars.t_intrc;
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_rl_quit_char = _rl_tty_chars.t_quit = tiop->tchars.t_quitc;
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_rl_tty_chars.t_start = tiop->tchars.t_startc;
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_rl_tty_chars.t_stop = tiop->tchars.t_stopc;
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_rl_tty_chars.t_eof = tiop->tchars.t_eofc;
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_rl_tty_chars.t_eol = '\n';
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_rl_tty_chars.t_eol2 = tiop->tchars.t_brkc;
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}
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if (tiop->flags & LTCHARS_SET)
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{
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_rl_susp_char = _rl_tty_chars.t_susp = tiop->ltchars.t_suspc;
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_rl_tty_chars.t_dsusp = tiop->ltchars.t_dsuspc;
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_rl_tty_chars.t_reprint = tiop->ltchars.t_rprntc;
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_rl_tty_chars.t_flush = tiop->ltchars.t_flushc;
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_rl_tty_chars.t_werase = tiop->ltchars.t_werasc;
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_rl_tty_chars.t_lnext = tiop->ltchars.t_lnextc;
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}
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_rl_tty_chars.t_status = -1;
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}
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static int
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get_tty_settings (int tty, TIOTYPE *tiop)
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{
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set_winsize (tty);
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tiop->flags = tiop->lflag = 0;
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errno = 0;
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if (ioctl (tty, TIOCGETP, &(tiop->sgttyb)) < 0)
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return -1;
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tiop->flags |= SGTTY_SET;
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#if defined (TIOCLGET)
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if (ioctl (tty, TIOCLGET, &(tiop->lflag)) == 0)
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tiop->flags |= LFLAG_SET;
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#endif
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#if defined (TIOCGETC)
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if (ioctl (tty, TIOCGETC, &(tiop->tchars)) == 0)
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tiop->flags |= TCHARS_SET;
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#endif
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#if defined (TIOCGLTC)
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if (ioctl (tty, TIOCGLTC, &(tiop->ltchars)) == 0)
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tiop->flags |= LTCHARS_SET;
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#endif
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return 0;
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}
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static int
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set_tty_settings (int tty, TIOTYPE *tiop)
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{
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if (tiop->flags & SGTTY_SET)
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{
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ioctl (tty, TIOCSETN, &(tiop->sgttyb));
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tiop->flags &= ~SGTTY_SET;
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}
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_rl_echoing_p = 1;
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#if defined (TIOCLSET)
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if (tiop->flags & LFLAG_SET)
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{
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ioctl (tty, TIOCLSET, &(tiop->lflag));
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tiop->flags &= ~LFLAG_SET;
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}
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#endif
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#if defined (TIOCSETC)
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if (tiop->flags & TCHARS_SET)
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{
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ioctl (tty, TIOCSETC, &(tiop->tchars));
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tiop->flags &= ~TCHARS_SET;
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}
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#endif
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#if defined (TIOCSLTC)
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if (tiop->flags & LTCHARS_SET)
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{
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ioctl (tty, TIOCSLTC, &(tiop->ltchars));
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tiop->flags &= ~LTCHARS_SET;
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}
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#endif
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return 0;
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}
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static void
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prepare_terminal_settings (int meta_flag, TIOTYPE oldtio, TIOTYPE *tiop)
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{
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_rl_echoing_p = (oldtio.sgttyb.sg_flags & ECHO);
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_rl_echoctl = (oldtio.sgttyb.sg_flags & ECHOCTL);
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/* Copy the original settings to the structure we're going to use for
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our settings. */
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tiop->sgttyb = oldtio.sgttyb;
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tiop->lflag = oldtio.lflag;
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#if defined (TIOCGETC)
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tiop->tchars = oldtio.tchars;
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#endif
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#if defined (TIOCGLTC)
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tiop->ltchars = oldtio.ltchars;
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#endif
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tiop->flags = oldtio.flags;
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/* First, the basic settings to put us into character-at-a-time, no-echo
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input mode. */
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tiop->sgttyb.sg_flags &= ~(ECHO | CRMOD);
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tiop->sgttyb.sg_flags |= CBREAK;
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/* If this terminal doesn't care how the 8th bit is used, then we can
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use it for the meta-key. If only one of even or odd parity is
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specified, then the terminal is using parity, and we cannot. */
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#if !defined (ANYP)
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# define ANYP (EVENP | ODDP)
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#endif
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if (((oldtio.sgttyb.sg_flags & ANYP) == ANYP) ||
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((oldtio.sgttyb.sg_flags & ANYP) == 0))
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{
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tiop->sgttyb.sg_flags |= ANYP;
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/* Hack on local mode flags if we can. */
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#if defined (TIOCLGET)
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# if defined (LPASS8)
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tiop->lflag |= LPASS8;
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# endif /* LPASS8 */
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#endif /* TIOCLGET */
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}
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#if defined (TIOCGETC)
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# if defined (USE_XON_XOFF)
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/* Get rid of terminal output start and stop characters. */
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tiop->tchars.t_stopc = -1; /* C-s */
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tiop->tchars.t_startc = -1; /* C-q */
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/* If there is an XON character, bind it to restart the output. */
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if (oldtio.tchars.t_startc != -1)
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rl_bind_key (oldtio.tchars.t_startc, rl_restart_output);
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# endif /* USE_XON_XOFF */
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/* If there is an EOF char, bind _rl_eof_char to it. */
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if (oldtio.tchars.t_eofc != -1)
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_rl_eof_char = oldtio.tchars.t_eofc;
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# if defined (NO_KILL_INTR)
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/* Get rid of terminal-generated SIGQUIT and SIGINT. */
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tiop->tchars.t_quitc = -1; /* C-\ */
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tiop->tchars.t_intrc = -1; /* C-c */
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# endif /* NO_KILL_INTR */
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#endif /* TIOCGETC */
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#if defined (TIOCGLTC)
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/* Make the interrupt keys go away. Just enough to make people happy. */
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tiop->ltchars.t_dsuspc = -1; /* C-y */
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tiop->ltchars.t_lnextc = -1; /* C-v */
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#endif /* TIOCGLTC */
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}
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#else /* !defined (NEW_TTY_DRIVER) */
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#if !defined (VMIN)
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# define VMIN VEOF
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#endif
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#if !defined (VTIME)
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# define VTIME VEOL
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#endif
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#if defined (TERMIOS_TTY_DRIVER)
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# define TIOTYPE struct termios
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# define DRAIN_OUTPUT(fd) tcdrain (fd)
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# define GETATTR(tty, tiop) (tcgetattr (tty, tiop))
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# ifdef M_UNIX
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# define SETATTR(tty, tiop) (tcsetattr (tty, TCSANOW, tiop))
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# else
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# define SETATTR(tty, tiop) (tcsetattr (tty, TCSADRAIN, tiop))
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# endif /* !M_UNIX */
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#else
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# define TIOTYPE struct termio
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# define DRAIN_OUTPUT(fd)
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# define GETATTR(tty, tiop) (ioctl (tty, TCGETA, tiop))
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# define SETATTR(tty, tiop) (ioctl (tty, TCSETAW, tiop))
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#endif /* !TERMIOS_TTY_DRIVER */
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static TIOTYPE otio;
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static void save_tty_chars PARAMS((TIOTYPE *));
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static int _get_tty_settings PARAMS((int, TIOTYPE *));
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static int get_tty_settings PARAMS((int, TIOTYPE *));
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static int _set_tty_settings PARAMS((int, TIOTYPE *));
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|
static int set_tty_settings PARAMS((int, TIOTYPE *));
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static void prepare_terminal_settings PARAMS((int, TIOTYPE, TIOTYPE *));
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static void set_special_char PARAMS((Keymap, TIOTYPE *, int, rl_command_func_t *));
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|
static void _rl_bind_tty_special_chars PARAMS((Keymap, TIOTYPE));
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#if defined (FLUSHO)
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|
# define OUTPUT_BEING_FLUSHED(tp) (tp->c_lflag & FLUSHO)
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|
#else
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|
# define OUTPUT_BEING_FLUSHED(tp) 0
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|
#endif
|
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|
|
static void
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|
save_tty_chars (TIOTYPE *tiop)
|
|
|
{
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|
|
_rl_last_tty_chars = _rl_tty_chars;
|
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|
|
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|
_rl_tty_chars.t_eof = tiop->c_cc[VEOF];
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|
_rl_tty_chars.t_eol = tiop->c_cc[VEOL];
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|
#ifdef VEOL2
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|
_rl_tty_chars.t_eol2 = tiop->c_cc[VEOL2];
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|
#endif
|
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|
_rl_tty_chars.t_erase = tiop->c_cc[VERASE];
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|
#ifdef VWERASE
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|
_rl_tty_chars.t_werase = tiop->c_cc[VWERASE];
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|
#endif
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|
_rl_tty_chars.t_kill = tiop->c_cc[VKILL];
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|
|
#ifdef VREPRINT
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|
|
_rl_tty_chars.t_reprint = tiop->c_cc[VREPRINT];
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|
#endif
|
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|
_rl_intr_char = _rl_tty_chars.t_intr = tiop->c_cc[VINTR];
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|
_rl_quit_char = _rl_tty_chars.t_quit = tiop->c_cc[VQUIT];
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|
#ifdef VSUSP
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|
|
_rl_susp_char = _rl_tty_chars.t_susp = tiop->c_cc[VSUSP];
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|
|
#endif
|
|
|
#ifdef VDSUSP
|
|
|
_rl_tty_chars.t_dsusp = tiop->c_cc[VDSUSP];
|
|
|
#endif
|
|
|
#ifdef VSTART
|
|
|
_rl_tty_chars.t_start = tiop->c_cc[VSTART];
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|
|
#endif
|
|
|
#ifdef VSTOP
|
|
|
_rl_tty_chars.t_stop = tiop->c_cc[VSTOP];
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|
|
#endif
|
|
|
#ifdef VLNEXT
|
|
|
_rl_tty_chars.t_lnext = tiop->c_cc[VLNEXT];
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|
|
#endif
|
|
|
#ifdef VDISCARD
|
|
|
_rl_tty_chars.t_flush = tiop->c_cc[VDISCARD];
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|
|
#endif
|
|
|
#ifdef VSTATUS
|
|
|
_rl_tty_chars.t_status = tiop->c_cc[VSTATUS];
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|
|
#endif
|
|
|
}
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|
|
|
|
|
#if defined (_AIX) || defined (_AIX41)
|
|
|
/* Currently this is only used on AIX */
|
|
|
static void
|
|
|
rltty_warning (char *msg)
|
|
|
{
|
|
|
_rl_errmsg ("warning: %s", msg);
|
|
|
}
|
|
|
#endif
|
|
|
|
|
|
#if defined (_AIX)
|
|
|
void
|
|
|
setopost (TIOTYPE *tp)
|
|
|
{
|
|
|
if ((tp->c_oflag & OPOST) == 0)
|
|
|
{
|
|
|
_rl_errmsg ("warning: turning on OPOST for terminal\r");
|
|
|
tp->c_oflag |= OPOST|ONLCR;
|
|
|
}
|
|
|
}
|
|
|
#endif
|
|
|
|
|
|
static int
|
|
|
_get_tty_settings (int tty, TIOTYPE *tiop)
|
|
|
{
|
|
|
int ioctl_ret;
|
|
|
|
|
|
while (1)
|
|
|
{
|
|
|
ioctl_ret = GETATTR (tty, tiop);
|
|
|
if (ioctl_ret < 0)
|
|
|
{
|
|
|
if (errno != EINTR)
|
|
|
return -1;
|
|
|
else
|
|
|
continue;
|
|
|
}
|
|
|
if (OUTPUT_BEING_FLUSHED (tiop))
|
|
|
{
|
|
|
#if defined (FLUSHO)
|
|
|
_rl_errmsg ("warning: turning off output flushing");
|
|
|
tiop->c_lflag &= ~FLUSHO;
|
|
|
break;
|
|
|
#else
|
|
|
continue;
|
|
|
#endif
|
|
|
}
|
|
|
break;
|
|
|
}
|
|
|
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
static int
|
|
|
get_tty_settings (int tty, TIOTYPE *tiop)
|
|
|
{
|
|
|
set_winsize (tty);
|
|
|
|
|
|
errno = 0;
|
|
|
if (_get_tty_settings (tty, tiop) < 0)
|
|
|
return -1;
|
|
|
|
|
|
#if defined (_AIX)
|
|
|
setopost(tiop);
|
|
|
#endif
|
|
|
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
static int
|
|
|
_set_tty_settings (int tty, TIOTYPE *tiop)
|
|
|
{
|
|
|
while (SETATTR (tty, tiop) < 0)
|
|
|
{
|
|
|
if (errno != EINTR)
|
|
|
return -1;
|
|
|
errno = 0;
|
|
|
}
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
static int
|
|
|
set_tty_settings (int tty, TIOTYPE *tiop)
|
|
|
{
|
|
|
if (_set_tty_settings (tty, tiop) < 0)
|
|
|
return -1;
|
|
|
|
|
|
#if 0
|
|
|
|
|
|
#if defined (TERMIOS_TTY_DRIVER)
|
|
|
# if defined (__ksr1__)
|
|
|
if (ksrflow)
|
|
|
{
|
|
|
ksrflow = 0;
|
|
|
tcflow (tty, TCOON);
|
|
|
}
|
|
|
# else /* !ksr1 */
|
|
|
tcflow (tty, TCOON); /* Simulate a ^Q. */
|
|
|
# endif /* !ksr1 */
|
|
|
#else
|
|
|
ioctl (tty, TCXONC, 1); /* Simulate a ^Q. */
|
|
|
#endif /* !TERMIOS_TTY_DRIVER */
|
|
|
|
|
|
#endif /* 0 */
|
|
|
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
static void
|
|
|
prepare_terminal_settings (int meta_flag, TIOTYPE oldtio, TIOTYPE *tiop)
|
|
|
{
|
|
|
int sc;
|
|
|
Keymap kmap;
|
|
|
|
|
|
_rl_echoing_p = (oldtio.c_lflag & ECHO);
|
|
|
#if defined (ECHOCTL)
|
|
|
_rl_echoctl = (oldtio.c_lflag & ECHOCTL);
|
|
|
#endif
|
|
|
|
|
|
tiop->c_lflag &= ~(ICANON | ECHO);
|
|
|
|
|
|
if ((unsigned char) oldtio.c_cc[VEOF] != (unsigned char) _POSIX_VDISABLE)
|
|
|
_rl_eof_char = oldtio.c_cc[VEOF];
|
|
|
|
|
|
#if defined (USE_XON_XOFF)
|
|
|
#if defined (IXANY)
|
|
|
tiop->c_iflag &= ~(IXON | IXANY);
|
|
|
#else
|
|
|
/* `strict' Posix systems do not define IXANY. */
|
|
|
tiop->c_iflag &= ~IXON;
|
|
|
#endif /* IXANY */
|
|
|
#endif /* USE_XON_XOFF */
|
|
|
|
|
|
/* Only turn this off if we are using all 8 bits. */
|
|
|
if (((tiop->c_cflag & CSIZE) == CS8) || meta_flag)
|
|
|
tiop->c_iflag &= ~(ISTRIP | INPCK);
|
|
|
|
|
|
/* Make sure we differentiate between CR and NL on input. */
|
|
|
tiop->c_iflag &= ~(ICRNL | INLCR);
|
|
|
|
|
|
#if !defined (HANDLE_SIGNALS)
|
|
|
tiop->c_lflag &= ~ISIG;
|
|
|
#else
|
|
|
tiop->c_lflag |= ISIG;
|
|
|
#endif
|
|
|
|
|
|
tiop->c_cc[VMIN] = 1;
|
|
|
tiop->c_cc[VTIME] = 0;
|
|
|
|
|
|
#if defined (FLUSHO)
|
|
|
if (OUTPUT_BEING_FLUSHED (tiop))
|
|
|
{
|
|
|
tiop->c_lflag &= ~FLUSHO;
|
|
|
oldtio.c_lflag &= ~FLUSHO;
|
|
|
}
|
|
|
#endif
|
|
|
|
|
|
/* Turn off characters that we need on Posix systems with job control,
|
|
|
just to be sure. This includes ^Y and ^V. This should not really
|
|
|
be necessary. */
|
|
|
#if defined (TERMIOS_TTY_DRIVER) && defined (_POSIX_VDISABLE)
|
|
|
|
|
|
#if defined (VLNEXT)
|
|
|
tiop->c_cc[VLNEXT] = _POSIX_VDISABLE;
|
|
|
#endif
|
|
|
|
|
|
#if defined (VDSUSP)
|
|
|
tiop->c_cc[VDSUSP] = _POSIX_VDISABLE;
|
|
|
#endif
|
|
|
|
|
|
/* Conditionally disable some other tty special characters if there is a
|
|
|
key binding for them in the current keymap. Readline ordinarily doesn't
|
|
|
bind these characters, but an application or user might. */
|
|
|
#if defined (VI_MODE)
|
|
|
kmap = (rl_editing_mode == vi_mode) ? vi_insertion_keymap : _rl_keymap;
|
|
|
#else
|
|
|
kmap = _rl_keymap;
|
|
|
#endif
|
|
|
#if defined (VDISCARD)
|
|
|
sc = tiop->c_cc[VDISCARD];
|
|
|
if (sc != _POSIX_VDISABLE && kmap[(unsigned char)sc].type == ISFUNC)
|
|
|
tiop->c_cc[VDISCARD] = _POSIX_VDISABLE;
|
|
|
#endif /* VDISCARD */
|
|
|
|
|
|
#endif /* TERMIOS_TTY_DRIVER && _POSIX_VDISABLE */
|
|
|
}
|
|
|
#endif /* !NEW_TTY_DRIVER */
|
|
|
|
|
|
/* Put the terminal in CBREAK mode so that we can detect key presses. */
|
|
|
#if defined (NO_TTY_DRIVER)
|
|
|
void
|
|
|
rl_prep_terminal (int meta_flag)
|
|
|
{
|
|
|
_rl_echoing_p = 1;
|
|
|
}
|
|
|
|
|
|
void
|
|
|
rl_deprep_terminal (void)
|
|
|
{
|
|
|
}
|
|
|
|
|
|
#else /* ! NO_TTY_DRIVER */
|
|
|
void
|
|
|
rl_prep_terminal (int meta_flag)
|
|
|
{
|
|
|
int tty, nprep;
|
|
|
TIOTYPE tio;
|
|
|
|
|
|
if (terminal_prepped)
|
|
|
return;
|
|
|
|
|
|
/* Try to keep this function from being INTerrupted. */
|
|
|
_rl_block_sigint ();
|
|
|
|
|
|
tty = rl_instream ? fileno (rl_instream) : fileno (stdin);
|
|
|
|
|
|
if (get_tty_settings (tty, &tio) < 0)
|
|
|
{
|
|
|
#if defined (ENOTSUP)
|
|
|
/* MacOS X and Linux, at least, lie about the value of errno if
|
|
|
tcgetattr fails. */
|
|
|
if (errno == ENOTTY || errno == EINVAL || errno == ENOTSUP)
|
|
|
#else
|
|
|
if (errno == ENOTTY || errno == EINVAL)
|
|
|
#endif
|
|
|
_rl_echoing_p = 1; /* XXX */
|
|
|
|
|
|
_rl_release_sigint ();
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
otio = tio;
|
|
|
|
|
|
if (_rl_bind_stty_chars)
|
|
|
{
|
|
|
#if defined (VI_MODE)
|
|
|
/* If editing in vi mode, make sure we restore the bindings in the
|
|
|
insertion keymap no matter what keymap we ended up in. */
|
|
|
if (rl_editing_mode == vi_mode)
|
|
|
rl_tty_unset_default_bindings (vi_insertion_keymap);
|
|
|
else
|
|
|
#endif
|
|
|
rl_tty_unset_default_bindings (_rl_keymap);
|
|
|
}
|
|
|
save_tty_chars (&otio);
|
|
|
RL_SETSTATE(RL_STATE_TTYCSAVED);
|
|
|
if (_rl_bind_stty_chars)
|
|
|
{
|
|
|
#if defined (VI_MODE)
|
|
|
/* If editing in vi mode, make sure we set the bindings in the
|
|
|
insertion keymap no matter what keymap we ended up in. */
|
|
|
if (rl_editing_mode == vi_mode)
|
|
|
_rl_bind_tty_special_chars (vi_insertion_keymap, tio);
|
|
|
else
|
|
|
#endif
|
|
|
_rl_bind_tty_special_chars (_rl_keymap, tio);
|
|
|
}
|
|
|
|
|
|
prepare_terminal_settings (meta_flag, otio, &tio);
|
|
|
|
|
|
if (set_tty_settings (tty, &tio) < 0)
|
|
|
{
|
|
|
_rl_release_sigint ();
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
if (_rl_enable_keypad)
|
|
|
_rl_control_keypad (1);
|
|
|
|
|
|
nprep = TPX_PREPPED;
|
|
|
|
|
|
if (_rl_enable_bracketed_paste)
|
|
|
{
|
|
|
fprintf (rl_outstream, BRACK_PASTE_INIT);
|
|
|
nprep |= TPX_BRACKPASTE;
|
|
|
}
|
|
|
|
|
|
fflush (rl_outstream);
|
|
|
terminal_prepped = nprep;
|
|
|
RL_SETSTATE(RL_STATE_TERMPREPPED);
|
|
|
|
|
|
_rl_release_sigint ();
|
|
|
}
|
|
|
|
|
|
/* Restore the terminal's normal settings and modes. */
|
|
|
void
|
|
|
rl_deprep_terminal (void)
|
|
|
{
|
|
|
int tty;
|
|
|
|
|
|
if (terminal_prepped == 0)
|
|
|
return;
|
|
|
|
|
|
/* Try to keep this function from being interrupted. */
|
|
|
_rl_block_sigint ();
|
|
|
|
|
|
tty = rl_instream ? fileno (rl_instream) : fileno (stdin);
|
|
|
|
|
|
if (terminal_prepped & TPX_BRACKPASTE)
|
|
|
{
|
|
|
fprintf (rl_outstream, BRACK_PASTE_FINI);
|
|
|
if (_rl_eof_found)
|
|
|
fprintf (rl_outstream, "\n");
|
|
|
}
|
|
|
|
|
|
if (_rl_enable_keypad)
|
|
|
_rl_control_keypad (0);
|
|
|
|
|
|
fflush (rl_outstream);
|
|
|
|
|
|
if (set_tty_settings (tty, &otio) < 0)
|
|
|
{
|
|
|
_rl_release_sigint ();
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
terminal_prepped = 0;
|
|
|
RL_UNSETSTATE(RL_STATE_TERMPREPPED);
|
|
|
|
|
|
_rl_release_sigint ();
|
|
|
}
|
|
|
#endif /* !NO_TTY_DRIVER */
|
|
|
|
|
|
/* Set readline's idea of whether or not it is echoing output to the terminal,
|
|
|
returning the old value. */
|
|
|
int
|
|
|
rl_tty_set_echoing (int u)
|
|
|
{
|
|
|
int o;
|
|
|
|
|
|
o = _rl_echoing_p;
|
|
|
_rl_echoing_p = u;
|
|
|
return o;
|
|
|
}
|
|
|
|
|
|
/* **************************************************************** */
|
|
|
/* */
|
|
|
/* Bogus Flow Control */
|
|
|
/* */
|
|
|
/* **************************************************************** */
|
|
|
|
|
|
int
|
|
|
rl_restart_output (int count, int key)
|
|
|
{
|
|
|
#if defined (__MINGW32__)
|
|
|
return 0;
|
|
|
#else /* !__MING32__ */
|
|
|
|
|
|
int fildes = fileno (rl_outstream);
|
|
|
#if defined (TIOCSTART)
|
|
|
#if defined (apollo)
|
|
|
ioctl (&fildes, TIOCSTART, 0);
|
|
|
#else
|
|
|
ioctl (fildes, TIOCSTART, 0);
|
|
|
#endif /* apollo */
|
|
|
|
|
|
#else /* !TIOCSTART */
|
|
|
# if defined (TERMIOS_TTY_DRIVER)
|
|
|
# if defined (__ksr1__)
|
|
|
if (ksrflow)
|
|
|
{
|
|
|
ksrflow = 0;
|
|
|
tcflow (fildes, TCOON);
|
|
|
}
|
|
|
# else /* !ksr1 */
|
|
|
tcflow (fildes, TCOON); /* Simulate a ^Q. */
|
|
|
# endif /* !ksr1 */
|
|
|
# else /* !TERMIOS_TTY_DRIVER */
|
|
|
# if defined (TCXONC)
|
|
|
ioctl (fildes, TCXONC, TCOON);
|
|
|
# endif /* TCXONC */
|
|
|
# endif /* !TERMIOS_TTY_DRIVER */
|
|
|
#endif /* !TIOCSTART */
|
|
|
|
|
|
return 0;
|
|
|
#endif /* !__MINGW32__ */
|
|
|
}
|
|
|
|
|
|
int
|
|
|
rl_stop_output (int count, int key)
|
|
|
{
|
|
|
#if defined (__MINGW32__)
|
|
|
return 0;
|
|
|
#else
|
|
|
|
|
|
int fildes = fileno (rl_instream);
|
|
|
|
|
|
#if defined (TIOCSTOP)
|
|
|
# if defined (apollo)
|
|
|
ioctl (&fildes, TIOCSTOP, 0);
|
|
|
# else
|
|
|
ioctl (fildes, TIOCSTOP, 0);
|
|
|
# endif /* apollo */
|
|
|
#else /* !TIOCSTOP */
|
|
|
# if defined (TERMIOS_TTY_DRIVER)
|
|
|
# if defined (__ksr1__)
|
|
|
ksrflow = 1;
|
|
|
# endif /* ksr1 */
|
|
|
tcflow (fildes, TCOOFF);
|
|
|
# else
|
|
|
# if defined (TCXONC)
|
|
|
ioctl (fildes, TCXONC, TCOON);
|
|
|
# endif /* TCXONC */
|
|
|
# endif /* !TERMIOS_TTY_DRIVER */
|
|
|
#endif /* !TIOCSTOP */
|
|
|
|
|
|
return 0;
|
|
|
#endif /* !__MINGW32__ */
|
|
|
}
|
|
|
|
|
|
/* **************************************************************** */
|
|
|
/* */
|
|
|
/* Default Key Bindings */
|
|
|
/* */
|
|
|
/* **************************************************************** */
|
|
|
|
|
|
#if !defined (NO_TTY_DRIVER)
|
|
|
#define SET_SPECIAL(sc, func) set_special_char(kmap, &ttybuff, sc, func)
|
|
|
#endif
|
|
|
|
|
|
#if defined (NO_TTY_DRIVER)
|
|
|
|
|
|
#define SET_SPECIAL(sc, func)
|
|
|
#define RESET_SPECIAL(c)
|
|
|
|
|
|
#elif defined (NEW_TTY_DRIVER)
|
|
|
static void
|
|
|
set_special_char (Keymap kmap, TIOTYPE *tiop, int sc, rl_command_func_t *func)
|
|
|
{
|
|
|
if (sc != -1 && kmap[(unsigned char)sc].type == ISFUNC)
|
|
|
kmap[(unsigned char)sc].function = func;
|
|
|
}
|
|
|
|
|
|
#define RESET_SPECIAL(c) \
|
|
|
if (c != -1 && kmap[(unsigned char)c].type == ISFUNC) \
|
|
|
kmap[(unsigned char)c].function = rl_insert;
|
|
|
|
|
|
static void
|
|
|
_rl_bind_tty_special_chars (Keymap kmap, TIOTYPE ttybuff)
|
|
|
{
|
|
|
if (ttybuff.flags & SGTTY_SET)
|
|
|
{
|
|
|
SET_SPECIAL (ttybuff.sgttyb.sg_erase, rl_rubout);
|
|
|
SET_SPECIAL (ttybuff.sgttyb.sg_kill, rl_unix_line_discard);
|
|
|
}
|
|
|
|
|
|
# if defined (TIOCGLTC)
|
|
|
if (ttybuff.flags & LTCHARS_SET)
|
|
|
{
|
|
|
SET_SPECIAL (ttybuff.ltchars.t_werasc, rl_unix_word_rubout);
|
|
|
SET_SPECIAL (ttybuff.ltchars.t_lnextc, rl_quoted_insert);
|
|
|
}
|
|
|
# endif /* TIOCGLTC */
|
|
|
}
|
|
|
|
|
|
#else /* !NEW_TTY_DRIVER */
|
|
|
static void
|
|
|
set_special_char (Keymap kmap, TIOTYPE *tiop, int sc, rl_command_func_t *func)
|
|
|
{
|
|
|
unsigned char uc;
|
|
|
|
|
|
uc = tiop->c_cc[sc];
|
|
|
if (uc != (unsigned char)_POSIX_VDISABLE && kmap[uc].type == ISFUNC)
|
|
|
kmap[uc].function = func;
|
|
|
}
|
|
|
|
|
|
/* used later */
|
|
|
#define RESET_SPECIAL(uc) \
|
|
|
if (uc != (unsigned char)_POSIX_VDISABLE && kmap[uc].type == ISFUNC) \
|
|
|
kmap[uc].function = rl_insert;
|
|
|
|
|
|
static void
|
|
|
_rl_bind_tty_special_chars (Keymap kmap, TIOTYPE ttybuff)
|
|
|
{
|
|
|
SET_SPECIAL (VERASE, rl_rubout);
|
|
|
SET_SPECIAL (VKILL, rl_unix_line_discard);
|
|
|
|
|
|
# if defined (VLNEXT) && defined (TERMIOS_TTY_DRIVER)
|
|
|
SET_SPECIAL (VLNEXT, rl_quoted_insert);
|
|
|
# endif /* VLNEXT && TERMIOS_TTY_DRIVER */
|
|
|
|
|
|
# if defined (VWERASE) && defined (TERMIOS_TTY_DRIVER)
|
|
|
# if defined (VI_MODE)
|
|
|
if (rl_editing_mode == vi_mode)
|
|
|
SET_SPECIAL (VWERASE, rl_vi_unix_word_rubout);
|
|
|
else
|
|
|
# endif
|
|
|
SET_SPECIAL (VWERASE, rl_unix_word_rubout);
|
|
|
# endif /* VWERASE && TERMIOS_TTY_DRIVER */
|
|
|
}
|
|
|
|
|
|
#endif /* !NEW_TTY_DRIVER */
|
|
|
|
|
|
/* Set the system's default editing characters to their readline equivalents
|
|
|
in KMAP. Should be static, now that we have rl_tty_set_default_bindings. */
|
|
|
void
|
|
|
rltty_set_default_bindings (Keymap kmap)
|
|
|
{
|
|
|
#if !defined (NO_TTY_DRIVER)
|
|
|
TIOTYPE ttybuff;
|
|
|
int tty;
|
|
|
|
|
|
tty = fileno (rl_instream);
|
|
|
|
|
|
if (get_tty_settings (tty, &ttybuff) == 0)
|
|
|
_rl_bind_tty_special_chars (kmap, ttybuff);
|
|
|
#endif
|
|
|
}
|
|
|
|
|
|
/* New public way to set the system default editing chars to their readline
|
|
|
equivalents. */
|
|
|
void
|
|
|
rl_tty_set_default_bindings (Keymap kmap)
|
|
|
{
|
|
|
rltty_set_default_bindings (kmap);
|
|
|
}
|
|
|
|
|
|
/* Rebind all of the tty special chars that readline worries about back
|
|
|
to self-insert. Call this before saving the current terminal special
|
|
|
chars with save_tty_chars(). This only works on POSIX termios or termio
|
|
|
systems. */
|
|
|
void
|
|
|
rl_tty_unset_default_bindings (Keymap kmap)
|
|
|
{
|
|
|
/* Don't bother before we've saved the tty special chars at least once. */
|
|
|
if (RL_ISSTATE(RL_STATE_TTYCSAVED) == 0)
|
|
|
return;
|
|
|
|
|
|
RESET_SPECIAL (_rl_tty_chars.t_erase);
|
|
|
RESET_SPECIAL (_rl_tty_chars.t_kill);
|
|
|
|
|
|
# if defined (VLNEXT) && defined (TERMIOS_TTY_DRIVER)
|
|
|
RESET_SPECIAL (_rl_tty_chars.t_lnext);
|
|
|
# endif /* VLNEXT && TERMIOS_TTY_DRIVER */
|
|
|
|
|
|
# if defined (VWERASE) && defined (TERMIOS_TTY_DRIVER)
|
|
|
RESET_SPECIAL (_rl_tty_chars.t_werase);
|
|
|
# endif /* VWERASE && TERMIOS_TTY_DRIVER */
|
|
|
}
|
|
|
|
|
|
#if defined (HANDLE_SIGNALS)
|
|
|
|
|
|
#if defined (NEW_TTY_DRIVER) || defined (NO_TTY_DRIVER)
|
|
|
int
|
|
|
_rl_disable_tty_signals (void)
|
|
|
{
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
int
|
|
|
_rl_restore_tty_signals (void)
|
|
|
{
|
|
|
return 0;
|
|
|
}
|
|
|
#else
|
|
|
|
|
|
static TIOTYPE sigstty, nosigstty;
|
|
|
static int tty_sigs_disabled = 0;
|
|
|
|
|
|
int
|
|
|
_rl_disable_tty_signals (void)
|
|
|
{
|
|
|
if (tty_sigs_disabled)
|
|
|
return 0;
|
|
|
|
|
|
if (_get_tty_settings (fileno (rl_instream), &sigstty) < 0)
|
|
|
return -1;
|
|
|
|
|
|
nosigstty = sigstty;
|
|
|
|
|
|
nosigstty.c_lflag &= ~ISIG;
|
|
|
nosigstty.c_iflag &= ~IXON;
|
|
|
|
|
|
if (_set_tty_settings (fileno (rl_instream), &nosigstty) < 0)
|
|
|
return (_set_tty_settings (fileno (rl_instream), &sigstty));
|
|
|
|
|
|
tty_sigs_disabled = 1;
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
int
|
|
|
_rl_restore_tty_signals (void)
|
|
|
{
|
|
|
int r;
|
|
|
|
|
|
if (tty_sigs_disabled == 0)
|
|
|
return 0;
|
|
|
|
|
|
r = _set_tty_settings (fileno (rl_instream), &sigstty);
|
|
|
|
|
|
if (r == 0)
|
|
|
tty_sigs_disabled = 0;
|
|
|
|
|
|
return r;
|
|
|
}
|
|
|
#endif /* !NEW_TTY_DRIVER */
|
|
|
|
|
|
#endif /* HANDLE_SIGNALS */
|