/* rltty.c -- functions to prepare and restore the terminal for readline's
use. */
-/* Copyright (C) 1992 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2005 Free Software Foundation, Inc.
This file is part of the GNU Readline Library, a library for
reading lines of text with interactive input and history editing.
extern int errno;
#endif /* !errno */
-VFunction *rl_prep_term_function = rl_prep_terminal;
-VFunction *rl_deprep_term_function = rl_deprep_terminal;
+rl_vintfunc_t *rl_prep_term_function = rl_prep_terminal;
+rl_voidfunc_t *rl_deprep_term_function = rl_deprep_terminal;
+
+void _rl_block_sigint PARAMS((void));
+void _rl_release_sigint PARAMS((void));
+
+static void set_winsize PARAMS((int));
/* **************************************************************** */
/* */
static int sigint_blocked;
/* Cause SIGINT to not be delivered until the corresponding call to
- release_sigint(). */
-static void
-block_sigint ()
+ _rl_release_sigint(). */
+void
+_rl_block_sigint ()
{
if (sigint_blocked)
return;
}
/* Allow SIGINT to be delivered. */
-static void
-release_sigint ()
+void
+_rl_release_sigint ()
{
if (sigint_blocked == 0)
return;
#endif /* TIOCGWINSZ */
}
-#if defined (NEW_TTY_DRIVER)
+#if defined (NO_TTY_DRIVER)
+/* Nothing */
+#elif defined (NEW_TTY_DRIVER)
/* Values for the `flags' field of a struct bsdtty. This tells which
elements of the struct bsdtty have been fetched from the system and
static TIOTYPE otio;
+static void save_tty_chars PARAMS((TIOTYPE *));
+static int _get_tty_settings PARAMS((int, TIOTYPE *));
+static int get_tty_settings PARAMS((int, TIOTYPE *));
+static int _set_tty_settings PARAMS((int, TIOTYPE *));
+static int set_tty_settings PARAMS((int, TIOTYPE *));
+
+static void prepare_terminal_settings PARAMS((int, TIOTYPE, TIOTYPE *));
+
+static void set_special_char PARAMS((Keymap, TIOTYPE *, int, rl_command_func_t));
+
static void
save_tty_chars (tiop)
TIOTYPE *tiop;
_rl_tty_chars.t_intr = tiop->tchars.t_intrc;
_rl_tty_chars.t_quit = tiop->tchars.t_quitc;
_rl_tty_chars.t_start = tiop->tchars.t_startc;
- _rl_tty_chars.t_stop = tiop->tchars.t_stopc
+ _rl_tty_chars.t_stop = tiop->tchars.t_stopc;
_rl_tty_chars.t_eof = tiop->tchars.t_eofc;
_rl_tty_chars.t_eol = '\n';
_rl_tty_chars.t_eol2 = tiop->tchars.t_brkc;
int tty;
TIOTYPE *tiop;
{
-#if defined (TIOCGWINSZ)
set_winsize (tty);
-#endif
tiop->flags = tiop->lflag = 0;
- ioctl (tty, TIOCGETP, &(tiop->sgttyb));
+ errno = 0;
+ if (ioctl (tty, TIOCGETP, &(tiop->sgttyb)) < 0)
+ return -1;
tiop->flags |= SGTTY_SET;
#if defined (TIOCLGET)
- ioctl (tty, TIOCLGET, &(tiop->lflag));
- tiop->flags |= LFLAG_SET;
+ if (ioctl (tty, TIOCLGET, &(tiop->lflag)) == 0)
+ tiop->flags |= LFLAG_SET;
#endif
#if defined (TIOCGETC)
- ioctl (tty, TIOCGETC, &(tiop->tchars));
- tiop->flags |= TCHARS_SET;
+ if (ioctl (tty, TIOCGETC, &(tiop->tchars)) == 0)
+ tiop->flags |= TCHARS_SET;
#endif
#if defined (TIOCGLTC)
- ioctl (tty, TIOCGLTC, &(tiop->ltchars));
- tiop->flags |= LTCHARS_SET;
+ if (ioctl (tty, TIOCGLTC, &(tiop->ltchars)) == 0)
+ tiop->flags |= LTCHARS_SET;
#endif
return 0;
}
static void
-prepare_terminal_settings (meta_flag, otio, tiop)
+prepare_terminal_settings (meta_flag, oldtio, tiop)
int meta_flag;
- TIOTYPE otio, *tiop;
+ TIOTYPE oldtio, *tiop;
{
- readline_echoing_p = (otio.sgttyb.sg_flags & ECHO);
+ readline_echoing_p = (oldtio.sgttyb.sg_flags & ECHO);
/* Copy the original settings to the structure we're going to use for
our settings. */
- tiop->sgttyb = otio.sgttyb;
- tiop->lflag = otio.lflag;
+ tiop->sgttyb = oldtio.sgttyb;
+ tiop->lflag = oldtio.lflag;
#if defined (TIOCGETC)
- tiop->tchars = otio.tchars;
+ tiop->tchars = oldtio.tchars;
#endif
#if defined (TIOCGLTC)
- tiop->ltchars = otio.ltchars;
+ tiop->ltchars = oldtio.ltchars;
#endif
- tiop->flags = otio.flags;
+ tiop->flags = oldtio.flags;
/* First, the basic settings to put us into character-at-a-time, no-echo
input mode. */
#if !defined (ANYP)
# define ANYP (EVENP | ODDP)
#endif
- if (((otio.sgttyb.sg_flags & ANYP) == ANYP) ||
- ((otio.sgttyb.sg_flags & ANYP) == 0))
+ if (((oldtio.sgttyb.sg_flags & ANYP) == ANYP) ||
+ ((oldtio.sgttyb.sg_flags & ANYP) == 0))
{
tiop->sgttyb.sg_flags |= ANYP;
tiop->tchars.t_startc = -1; /* C-q */
/* If there is an XON character, bind it to restart the output. */
- if (otio.tchars.t_startc != -1)
- rl_bind_key (otio.tchars.t_startc, rl_restart_output);
+ if (oldtio.tchars.t_startc != -1)
+ rl_bind_key (oldtio.tchars.t_startc, rl_restart_output);
# endif /* USE_XON_XOFF */
/* If there is an EOF char, bind _rl_eof_char to it. */
- if (otio.tchars.t_eofc != -1)
- _rl_eof_char = otio.tchars.t_eofc;
+ if (oldtio.tchars.t_eofc != -1)
+ _rl_eof_char = oldtio.tchars.t_eofc;
# if defined (NO_KILL_INTR)
/* Get rid of terminal-generated SIGQUIT and SIGINT. */
# define TIOTYPE struct termio
# define DRAIN_OUTPUT(fd)
# define GETATTR(tty, tiop) (ioctl (tty, TCGETA, tiop))
-# define SETATTR(tty, tiop) (ioctl (tty, TCSETA, tiop))
+# define SETATTR(tty, tiop) (ioctl (tty, TCSETAW, tiop))
#endif /* !TERMIOS_TTY_DRIVER */
static TIOTYPE otio;
+static void save_tty_chars PARAMS((TIOTYPE *));
+static int _get_tty_settings PARAMS((int, TIOTYPE *));
+static int get_tty_settings PARAMS((int, TIOTYPE *));
+static int _set_tty_settings PARAMS((int, TIOTYPE *));
+static int set_tty_settings PARAMS((int, TIOTYPE *));
+
+static void prepare_terminal_settings PARAMS((int, TIOTYPE, TIOTYPE *));
+
+static void set_special_char PARAMS((Keymap, TIOTYPE *, int, rl_command_func_t));
+static void _rl_bind_tty_special_chars PARAMS((Keymap, TIOTYPE));
+
#if defined (FLUSHO)
# define OUTPUT_BEING_FLUSHED(tp) (tp->c_lflag & FLUSHO)
#else
int tty;
TIOTYPE *tiop;
{
-#if defined (TIOCGWINSZ)
set_winsize (tty);
-#endif
+ errno = 0;
if (_get_tty_settings (tty, tiop) < 0)
return -1;
}
static void
-prepare_terminal_settings (meta_flag, otio, tiop)
+prepare_terminal_settings (meta_flag, oldtio, tiop)
int meta_flag;
- TIOTYPE otio, *tiop;
+ TIOTYPE oldtio, *tiop;
{
- readline_echoing_p = (otio.c_lflag & ECHO);
+ readline_echoing_p = (oldtio.c_lflag & ECHO);
tiop->c_lflag &= ~(ICANON | ECHO);
- if ((unsigned char) otio.c_cc[VEOF] != (unsigned char) _POSIX_VDISABLE)
- _rl_eof_char = otio.c_cc[VEOF];
+ 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)
if (OUTPUT_BEING_FLUSHED (tiop))
{
tiop->c_lflag &= ~FLUSHO;
- otio.c_lflag &= ~FLUSHO;
+ oldtio.c_lflag &= ~FLUSHO;
}
#endif
#endif /* TERMIOS_TTY_DRIVER && _POSIX_VDISABLE */
}
-#endif /* NEW_TTY_DRIVER */
+#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 (meta_flag)
+ int meta_flag;
+{
+ readline_echoing_p = 1;
+}
+
+void
+rl_deprep_terminal ()
+{
+}
+
+#else /* ! NO_TTY_DRIVER */
void
rl_prep_terminal (meta_flag)
int meta_flag;
return;
/* Try to keep this function from being INTerrupted. */
- block_sigint ();
+ _rl_block_sigint ();
tty = fileno (rl_instream);
if (get_tty_settings (tty, &tio) < 0)
{
- release_sigint ();
+#if defined (ENOTSUP)
+ /* MacOS X, at least, lies about the value of errno if tcgetattr fails. */
+ if (errno == ENOTTY || errno == ENOTSUP)
+#else
+ if (errno == ENOTTY)
+#endif
+ readline_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)
{
- release_sigint ();
+ _rl_release_sigint ();
return;
}
fflush (rl_outstream);
terminal_prepped = 1;
+ RL_SETSTATE(RL_STATE_TERMPREPPED);
- release_sigint ();
+ _rl_release_sigint ();
}
/* Restore the terminal's normal settings and modes. */
return;
/* Try to keep this function from being interrupted. */
- block_sigint ();
+ _rl_block_sigint ();
tty = fileno (rl_instream);
if (set_tty_settings (tty, &otio) < 0)
{
- release_sigint ();
+ _rl_release_sigint ();
return;
}
terminal_prepped = 0;
+ RL_UNSETSTATE(RL_STATE_TERMPREPPED);
- release_sigint ();
+ _rl_release_sigint ();
}
+#endif /* !NO_TTY_DRIVER */
\f
/* **************************************************************** */
/* */
rl_restart_output (count, key)
int count, key;
{
+#if defined (__MINGW32__)
+ return 0;
+#else /* !__MING32__ */
+
int fildes = fileno (rl_outstream);
#if defined (TIOCSTART)
#if defined (apollo)
#endif /* !TIOCSTART */
return 0;
+#endif /* !__MINGW32__ */
}
int
rl_stop_output (count, key)
int count, key;
{
+#if defined (__MINGW32__)
+ return 0;
+#else
+
int fildes = fileno (rl_instream);
#if defined (TIOCSTOP)
#endif /* !TIOCSTOP */
return 0;
+#endif /* !__MINGW32__ */
}
/* **************************************************************** */
/* Default Key Bindings */
/* */
/* **************************************************************** */
-void
-rltty_set_default_bindings (kmap)
+
+#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 (kmap, tiop, sc, func)
Keymap kmap;
+ TIOTYPE *tiop;
+ int sc;
+ rl_command_func_t *func;
{
- TIOTYPE ttybuff;
- int tty = fileno (rl_instream);
-
-#if defined (NEW_TTY_DRIVER)
+ if (sc != -1 && kmap[(unsigned char)sc].type == ISFUNC)
+ kmap[(unsigned char)sc].function = func;
+}
-#define SET_SPECIAL(sc, func) \
- do \
- { \
- int ic; \
- ic = sc; \
- if (ic != -1 && kmap[ic].type == ISFUNC) \
- kmap[ic].function = func; \
- } \
- while (0)
+#define RESET_SPECIAL(c) \
+ if (c != -1 && kmap[(unsigned char)c].type == ISFUNC)
+ kmap[(unsigned char)c].function = rl_insert;
- if (get_tty_settings (tty, &ttybuff) == 0)
+static void
+_rl_bind_tty_special_chars (kmap, ttybuff)
+ Keymap kmap;
+ TIOTYPE ttybuff;
+{
+ if (ttybuff.flags & SGTTY_SET)
{
- if (ttybuff.flags & SGTTY_SET)
- {
- SET_SPECIAL (ttybuff.sgttyb.sg_erase, rl_rubout);
- SET_SPECIAL (ttybuff.sgttyb.sg_kill, rl_unix_line_discard);
- }
+ 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 */
+ 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 (kmap, tiop, sc, func)
+ Keymap kmap;
+ TIOTYPE *tiop;
+ int sc;
+ rl_command_func_t *func;
+{
+ unsigned char uc;
-#define SET_SPECIAL(sc, func) \
- do \
- { \
- unsigned char uc; \
- uc = ttybuff.c_cc[sc]; \
- if (uc != (unsigned char)_POSIX_VDISABLE && kmap[uc].type == ISFUNC) \
- kmap[uc].function = func; \
- } \
- while (0)
+ uc = tiop->c_cc[sc];
+ if (uc != (unsigned char)_POSIX_VDISABLE && kmap[uc].type == ISFUNC)
+ kmap[uc].function = func;
+}
- if (get_tty_settings (tty, &ttybuff) == 0)
- {
- SET_SPECIAL (VERASE, rl_rubout);
- SET_SPECIAL (VKILL, rl_unix_line_discard);
+/* 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 (kmap, ttybuff)
+ 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);
+ SET_SPECIAL (VLNEXT, rl_quoted_insert);
# endif /* VLNEXT && TERMIOS_TTY_DRIVER */
# if defined (VWERASE) && defined (TERMIOS_TTY_DRIVER)
- SET_SPECIAL (VWERASE, rl_unix_word_rubout);
+ 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 (kmap)
+ Keymap kmap;
+{
+#if !defined (NO_TTY_DRIVER)
+ TIOTYPE ttybuff;
+ int tty;
+ static int called = 0;
+
+ 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 (kmap)
+ 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 (kmap)
+ 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)
+#if defined (NEW_TTY_DRIVER) || defined (NO_TTY_DRIVER)
int
_rl_disable_tty_signals ()
{
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));
int
_rl_restore_tty_signals ()
{
+ int r;
+
if (tty_sigs_disabled == 0)
return 0;
- return (_set_tty_settings (fileno (rl_instream), &sigstty));
+ r = _set_tty_settings (fileno (rl_instream), &sigstty);
+
+ if (r == 0)
+ tty_sigs_disabled = 0;
+
+ return r;
}
#endif /* !NEW_TTY_DRIVER */
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