diff options
Diffstat (limited to 'readline/rltty.c')
| -rw-r--r-- | readline/rltty.c | 322 |
1 files changed, 248 insertions, 74 deletions
diff --git a/readline/rltty.c b/readline/rltty.c index f87c1c9747f..09702e9e755 100644 --- a/readline/rltty.c +++ b/readline/rltty.c @@ -8,7 +8,7 @@ The GNU Readline Library is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License - as published by the Free Software Foundation; either version 1, or + as published by the Free Software Foundation; either version 2, or (at your option) any later version. The GNU Readline Library is distributed in the hope that it will be @@ -19,7 +19,7 @@ The GNU General Public License is often shipped with GNU software, and is generally kept in a file called COPYING or LICENSE. If you do not have a copy of the license, write to the Free Software Foundation, - 675 Mass Ave, Cambridge, MA 02139, USA. */ + 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ #define READLINE_LIBRARY #if defined (HAVE_CONFIG_H) @@ -43,28 +43,19 @@ #include "rltty.h" #include "readline.h" +#include "rlprivate.h" #if !defined (errno) extern int errno; #endif /* !errno */ -extern int readline_echoing_p; -extern int _rl_eof_char; +rl_vintfunc_t *rl_prep_term_function = rl_prep_terminal; +rl_voidfunc_t *rl_deprep_term_function = rl_deprep_terminal; -extern int _rl_enable_keypad, _rl_enable_meta; +static void block_sigint PARAMS((void)); +static void release_sigint PARAMS((void)); -extern void _rl_control_keypad (); - -#if defined (__GO32__) -# include <pc.h> -# undef HANDLE_SIGNALS -#endif /* __GO32__ */ - -/* Indirect functions to allow apps control over terminal management. */ -extern void rl_prep_terminal (), rl_deprep_terminal (); - -VFunction *rl_prep_term_function = rl_prep_terminal; -VFunction *rl_deprep_term_function = rl_deprep_terminal; +static void set_winsize PARAMS((int)); /* **************************************************************** */ /* */ @@ -104,6 +95,7 @@ block_sigint () # endif /* HAVE_USG_SIGHOLD */ # endif /* !HAVE_BSD_SIGNALS */ #endif /* !HAVE_POSIX_SIGNALS */ + sigint_blocked = 1; } @@ -111,7 +103,7 @@ block_sigint () static void release_sigint () { - if (!sigint_blocked) + if (sigint_blocked == 0) return; #if defined (HAVE_POSIX_SIGNALS) @@ -138,32 +130,27 @@ release_sigint () /* Non-zero means that the terminal is in a prepped state. */ static int terminal_prepped; +static _RL_TTY_CHARS _rl_tty_chars, _rl_last_tty_chars; + /* If non-zero, means that this process has called tcflow(fd, TCOOFF) and output is suspended. */ #if defined (__ksr1__) static int ksrflow; #endif -#if defined (TIOCGWINSZ) /* Dummy call to force a backgrounded readline to stop before it tries to get the tty settings. */ static void set_winsize (tty) int tty; { +#if defined (TIOCGWINSZ) struct winsize w; if (ioctl (tty, TIOCGWINSZ, &w) == 0) (void) ioctl (tty, TIOCSWINSZ, &w); -} -#else -static void -set_winsize (tty) - int tty; -{ -// dummy function, required by other code. What should be doing? -} #endif /* TIOCGWINSZ */ +} #if defined (NEW_TTY_DRIVER) @@ -191,6 +178,50 @@ struct bsdtty { 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 +save_tty_chars (tiop) + TIOTYPE *tiop; +{ + _rl_last_tty_chars = _rl_tty_chars; + + if (tiop->flags & SGTTY_SET) + { + _rl_tty_chars.t_erase = tiop->sgttyb.sg_erase; + _rl_tty_chars.t_kill = tiop->sgttyb.sg_kill; + } + + if (tiop->flags & TCHARS_SET) + { + _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_eof = tiop->tchars.t_eofc; + _rl_tty_chars.t_eol = '\n'; + _rl_tty_chars.t_eol2 = tiop->tchars.t_brkc; + } + + if (tiop->flags & LTCHARS_SET) + { + _rl_tty_chars.t_susp = tiop->ltchars.t_suspc; + _rl_tty_chars.t_dsusp = tiop->ltchars.t_dsuspc; + _rl_tty_chars.t_reprint = tiop->ltchars.t_rprntc; + _rl_tty_chars.t_flush = tiop->ltchars.t_flushc; + _rl_tty_chars.t_werase = tiop->ltchars.t_werasc; + _rl_tty_chars.t_lnext = tiop->ltchars.t_lnextc; + } + + _rl_tty_chars.t_status = -1; +} + static int get_tty_settings (tty, tiop) int tty; @@ -200,22 +231,23 @@ get_tty_settings (tty, tiop) tiop->flags = tiop->lflag = 0; - ioctl (tty, TIOCGETP, &(tiop->sgttyb)); + 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; @@ -261,24 +293,23 @@ set_tty_settings (tty, tiop) } 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; { -#if !defined (__GO32__) - 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. */ @@ -291,8 +322,8 @@ prepare_terminal_settings (meta_flag, otio, tiop) #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; @@ -311,13 +342,13 @@ prepare_terminal_settings (meta_flag, otio, tiop) 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. */ @@ -331,7 +362,6 @@ prepare_terminal_settings (meta_flag, otio, tiop) tiop->ltchars.t_dsuspc = -1; /* C-y */ tiop->ltchars.t_lnextc = -1; /* C-v */ #endif /* TIOCGLTC */ -#endif /* !__GO32__ */ } #else /* !defined (NEW_TTY_DRIVER) */ @@ -357,18 +387,71 @@ prepare_terminal_settings (meta_flag, otio, tiop) # 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 *)); + #if defined (FLUSHO) # define OUTPUT_BEING_FLUSHED(tp) (tp->c_lflag & FLUSHO) #else # define OUTPUT_BEING_FLUSHED(tp) 0 #endif -#if defined (_AIX) || (defined (FLUSHO) && defined (_AIX41)) +static void +save_tty_chars (tiop) + TIOTYPE *tiop; +{ + _rl_last_tty_chars = _rl_tty_chars; + + _rl_tty_chars.t_eof = tiop->c_cc[VEOF]; + _rl_tty_chars.t_eol = tiop->c_cc[VEOL]; +#ifdef VEOL2 + _rl_tty_chars.t_eol2 = tiop->c_cc[VEOL2]; +#endif + _rl_tty_chars.t_erase = tiop->c_cc[VERASE]; +#ifdef VWERASE + _rl_tty_chars.t_werase = tiop->c_cc[VWERASE]; +#endif + _rl_tty_chars.t_kill = tiop->c_cc[VKILL]; +#ifdef VREPRINT + _rl_tty_chars.t_reprint = tiop->c_cc[VREPRINT]; +#endif + _rl_tty_chars.t_intr = tiop->c_cc[VINTR]; + _rl_tty_chars.t_quit = tiop->c_cc[VQUIT]; +#ifdef VSUSP + _rl_tty_chars.t_susp = tiop->c_cc[VSUSP]; +#endif +#ifdef VDSUSP + _rl_tty_chars.t_dsusp = tiop->c_cc[VDSUSP]; +#endif +#ifdef VSTART + _rl_tty_chars.t_start = tiop->c_cc[VSTART]; +#endif +#ifdef VSTOP + _rl_tty_chars.t_stop = tiop->c_cc[VSTOP]; +#endif +#ifdef VLNEXT + _rl_tty_chars.t_lnext = tiop->c_cc[VLNEXT]; +#endif +#ifdef VDISCARD + _rl_tty_chars.t_flush = tiop->c_cc[VDISCARD]; +#endif +#ifdef VSTATUS + _rl_tty_chars.t_status = tiop->c_cc[VSTATUS]; +#endif +} + +#if defined (_AIX) || defined (_AIX41) +/* Currently this is only used on AIX */ static void rltty_warning (msg) char *msg; @@ -377,7 +460,6 @@ rltty_warning (msg) } #endif - #if defined (_AIX) void setopost(tp) @@ -392,14 +474,12 @@ TIOTYPE *tp; #endif static int -get_tty_settings (tty, tiop) +_get_tty_settings (tty, tiop) int tty; TIOTYPE *tiop; { int ioctl_ret; - set_winsize (tty); - while (1) { ioctl_ret = GETATTR (tty, tiop); @@ -423,6 +503,19 @@ get_tty_settings (tty, tiop) break; } + return 0; +} + +static int +get_tty_settings (tty, tiop) + int tty; + TIOTYPE *tiop; +{ + set_winsize (tty); + + if (_get_tty_settings (tty, tiop) < 0) + return -1; + #if defined (_AIX) setopost(tiop); #endif @@ -431,7 +524,7 @@ get_tty_settings (tty, tiop) } static int -set_tty_settings (tty, tiop) +_set_tty_settings (tty, tiop) int tty; TIOTYPE *tiop; { @@ -441,7 +534,17 @@ set_tty_settings (tty, tiop) return -1; errno = 0; } + return 0; +} +static int +set_tty_settings (tty, tiop) + int tty; + TIOTYPE *tiop; +{ + if (_set_tty_settings (tty, tiop) < 0) + return -1; + #if 0 #if defined (TERMIOS_TTY_DRIVER) @@ -458,22 +561,22 @@ set_tty_settings (tty, tiop) ioctl (tty, TCXONC, 1); /* Simulate a ^Q. */ #endif /* !TERMIOS_TTY_DRIVER */ -#endif +#endif /* 0 */ 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.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) @@ -504,7 +607,7 @@ prepare_terminal_settings (meta_flag, otio, tiop) if (OUTPUT_BEING_FLUSHED (tiop)) { tiop->c_lflag &= ~FLUSHO; - otio.c_lflag &= ~FLUSHO; + oldtio.c_lflag &= ~FLUSHO; } #endif @@ -530,7 +633,6 @@ void rl_prep_terminal (meta_flag) int meta_flag; { -#if !defined (__GO32__) int tty; TIOTYPE tio; @@ -550,6 +652,8 @@ rl_prep_terminal (meta_flag) otio = tio; + save_tty_chars (&otio); + prepare_terminal_settings (meta_flag, otio, &tio); if (set_tty_settings (tty, &tio) < 0) @@ -563,16 +667,15 @@ rl_prep_terminal (meta_flag) fflush (rl_outstream); terminal_prepped = 1; + RL_SETSTATE(RL_STATE_TERMPREPPED); release_sigint (); -#endif /* !__GO32__ */ } /* Restore the terminal's normal settings and modes. */ void rl_deprep_terminal () { -#if !defined (__GO32__) int tty; if (!terminal_prepped) @@ -595,9 +698,9 @@ rl_deprep_terminal () } terminal_prepped = 0; + RL_UNSETSTATE(RL_STATE_TERMPREPPED); release_sigint (); -#endif /* !__GO32__ */ } /* **************************************************************** */ @@ -607,8 +710,8 @@ rl_deprep_terminal () /* **************************************************************** */ int -rl_restart_output (int count __attribute__((unused)), - int key __attribute__((unused))) +rl_restart_output (count, key) + int count __attribute__((unused)), key __attribute__((unused)); { int fildes = fileno (rl_outstream); #if defined (TIOCSTART) @@ -640,8 +743,8 @@ rl_restart_output (int count __attribute__((unused)), } int -rl_stop_output (int count __attribute__((unused)), - int key __attribute__((unused))) +rl_stop_output (count, key) + int count __attribute__((unused)), key __attribute__((unused)); { int fildes = fileno (rl_instream); @@ -672,6 +775,9 @@ rl_stop_output (int count __attribute__((unused)), /* Default Key Bindings */ /* */ /* **************************************************************** */ + +/* 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; @@ -686,8 +792,8 @@ rltty_set_default_bindings (kmap) { \ int ic; \ ic = sc; \ - if (ic != -1 && kmap[ic].type == ISFUNC) \ - kmap[ic].function = func; \ + if (ic != -1 && kmap[(unsigned char)ic].type == ISFUNC) \ + kmap[(unsigned char)ic].function = func; \ } \ while (0) @@ -735,3 +841,71 @@ rltty_set_default_bindings (kmap) } #endif /* !NEW_TTY_DRIVER */ } + +/* 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); +} + +#if defined (HANDLE_SIGNALS) + +#if defined (NEW_TTY_DRIVER) +int +_rl_disable_tty_signals () +{ + return 0; +} + +int +_rl_restore_tty_signals () +{ + return 0; +} +#else + +static TIOTYPE sigstty, nosigstty; +static int tty_sigs_disabled = 0; + +int +_rl_disable_tty_signals () +{ + 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 () +{ + 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 */ |