| 1 | /* rltty.c -- functions to prepare and restore the terminal for readline's
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| 2 | use. */
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| 3 |
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| 4 | /* Copyright (C) 1992-2005 Free Software Foundation, Inc.
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| 5 |
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| 6 | This file is part of the GNU Readline Library, a library for
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| 7 | reading lines of text with interactive input and history editing.
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| 8 |
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| 9 | The GNU Readline Library is free software; you can redistribute it
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| 10 | and/or modify it under the terms of the GNU General Public License
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| 11 | as published by the Free Software Foundation; either version 2, or
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| 12 | (at your option) any later version.
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| 13 |
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| 14 | The GNU Readline Library is distributed in the hope that it will be
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| 15 | useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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| 16 | of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 17 | GNU General Public License for more details.
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| 18 |
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| 19 | The GNU General Public License is often shipped with GNU software, and
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| 20 | is generally kept in a file called COPYING or LICENSE. If you do not
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| 21 | have a copy of the license, write to the Free Software Foundation,
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| 22 | 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
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| 23 | #define READLINE_LIBRARY
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| 24 |
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| 25 | #if defined (HAVE_CONFIG_H)
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| 26 | # include <config.h>
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| 27 | #endif
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| 28 |
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| 29 | #include <sys/types.h>
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| 30 | #include <signal.h>
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| 31 | #include <errno.h>
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| 32 | #include <stdio.h>
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| 33 |
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| 34 | #if defined (HAVE_UNISTD_H)
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| 35 | # include <unistd.h>
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| 36 | #endif /* HAVE_UNISTD_H */
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| 37 |
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| 38 | #include "rldefs.h"
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| 39 |
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| 40 | #if defined (GWINSZ_IN_SYS_IOCTL)
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| 41 | # include <sys/ioctl.h>
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| 42 | #endif /* GWINSZ_IN_SYS_IOCTL */
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| 43 |
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| 44 | #include "rltty.h"
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| 45 | #include "readline.h"
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| 46 | #include "rlprivate.h"
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| 47 |
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| 48 | #if !defined (errno)
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| 49 | extern int errno;
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| 50 | #endif /* !errno */
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| 51 |
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| 52 | rl_vintfunc_t *rl_prep_term_function = rl_prep_terminal;
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| 53 | rl_voidfunc_t *rl_deprep_term_function = rl_deprep_terminal;
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| 54 |
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| 55 | static void block_sigint PARAMS((void));
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| 56 | static void release_sigint PARAMS((void));
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| 57 |
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| 58 | static void set_winsize PARAMS((int));
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| 59 |
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| 60 | /* **************************************************************** */
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| 61 | /* */
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| 62 | /* Signal Management */
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| 63 | /* */
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| 64 | /* **************************************************************** */
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| 65 |
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| 66 | #if defined (HAVE_POSIX_SIGNALS)
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| 67 | static sigset_t sigint_set, sigint_oset;
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| 68 | #else /* !HAVE_POSIX_SIGNALS */
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| 69 | # if defined (HAVE_BSD_SIGNALS)
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| 70 | static int sigint_oldmask;
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| 71 | # endif /* HAVE_BSD_SIGNALS */
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| 72 | #endif /* !HAVE_POSIX_SIGNALS */
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| 73 |
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| 74 | static int sigint_blocked;
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| 75 |
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| 76 | /* Cause SIGINT to not be delivered until the corresponding call to
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| 77 | release_sigint(). */
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| 78 | static void
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| 79 | block_sigint ()
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| 80 | {
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| 81 | if (sigint_blocked)
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| 82 | return;
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| 83 |
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| 84 | #if defined (HAVE_POSIX_SIGNALS)
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| 85 | sigemptyset (&sigint_set);
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| 86 | sigemptyset (&sigint_oset);
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| 87 | sigaddset (&sigint_set, SIGINT);
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| 88 | sigprocmask (SIG_BLOCK, &sigint_set, &sigint_oset);
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| 89 | #else /* !HAVE_POSIX_SIGNALS */
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| 90 | # if defined (HAVE_BSD_SIGNALS)
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| 91 | sigint_oldmask = sigblock (sigmask (SIGINT));
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| 92 | # else /* !HAVE_BSD_SIGNALS */
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| 93 | # if defined (HAVE_USG_SIGHOLD)
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| 94 | sighold (SIGINT);
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| 95 | # endif /* HAVE_USG_SIGHOLD */
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| 96 | # endif /* !HAVE_BSD_SIGNALS */
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| 97 | #endif /* !HAVE_POSIX_SIGNALS */
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| 98 |
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| 99 | sigint_blocked = 1;
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| 100 | }
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| 101 |
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| 102 | /* Allow SIGINT to be delivered. */
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| 103 | static void
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| 104 | release_sigint ()
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| 105 | {
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| 106 | if (sigint_blocked == 0)
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| 107 | return;
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| 108 |
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| 109 | #if defined (HAVE_POSIX_SIGNALS)
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| 110 | sigprocmask (SIG_SETMASK, &sigint_oset, (sigset_t *)NULL);
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| 111 | #else
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| 112 | # if defined (HAVE_BSD_SIGNALS)
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| 113 | sigsetmask (sigint_oldmask);
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| 114 | # else /* !HAVE_BSD_SIGNALS */
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| 115 | # if defined (HAVE_USG_SIGHOLD)
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| 116 | sigrelse (SIGINT);
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| 117 | # endif /* HAVE_USG_SIGHOLD */
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| 118 | # endif /* !HAVE_BSD_SIGNALS */
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| 119 | #endif /* !HAVE_POSIX_SIGNALS */
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| 120 |
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| 121 | sigint_blocked = 0;
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| 122 | }
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| 123 |
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| 124 | /* **************************************************************** */
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| 125 | /* */
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| 126 | /* Saving and Restoring the TTY */
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| 127 | /* */
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| 128 | /* **************************************************************** */
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| 129 |
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| 130 | /* Non-zero means that the terminal is in a prepped state. */
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| 131 | static int terminal_prepped;
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| 132 |
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| 133 | static _RL_TTY_CHARS _rl_tty_chars, _rl_last_tty_chars;
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| 134 |
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| 135 | /* If non-zero, means that this process has called tcflow(fd, TCOOFF)
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| 136 | and output is suspended. */
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| 137 | #if defined (__ksr1__)
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| 138 | static int ksrflow;
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| 139 | #endif
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| 140 |
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| 141 | /* Dummy call to force a backgrounded readline to stop before it tries
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| 142 | to get the tty settings. */
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| 143 | static void
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| 144 | set_winsize (tty)
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| 145 | int tty;
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| 146 | {
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| 147 | #if defined (TIOCGWINSZ)
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| 148 | struct winsize w;
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| 149 |
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| 150 | if (ioctl (tty, TIOCGWINSZ, &w) == 0)
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| 151 | (void) ioctl (tty, TIOCSWINSZ, &w);
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| 152 | #endif /* TIOCGWINSZ */
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| 153 | }
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| 154 |
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| 155 | #if defined (NO_TTY_DRIVER)
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| 156 | /* Nothing */
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| 157 | #elif defined (NEW_TTY_DRIVER)
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| 158 |
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| 159 | /* Values for the `flags' field of a struct bsdtty. This tells which
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| 160 | elements of the struct bsdtty have been fetched from the system and
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| 161 | are valid. */
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| 162 | #define SGTTY_SET 0x01
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| 163 | #define LFLAG_SET 0x02
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| 164 | #define TCHARS_SET 0x04
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| 165 | #define LTCHARS_SET 0x08
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| 166 |
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| 167 | struct bsdtty {
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| 168 | struct sgttyb sgttyb; /* Basic BSD tty driver information. */
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| 169 | int lflag; /* Local mode flags, like LPASS8. */
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| 170 | #if defined (TIOCGETC)
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| 171 | struct tchars tchars; /* Terminal special characters, including ^S and ^Q. */
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| 172 | #endif
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| 173 | #if defined (TIOCGLTC)
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| 174 | struct ltchars ltchars; /* 4.2 BSD editing characters */
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| 175 | #endif
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| 176 | int flags; /* Bitmap saying which parts of the struct are valid. */
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| 177 | };
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| 178 |
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| 179 | #define TIOTYPE struct bsdtty
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| 180 |
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| 181 | static TIOTYPE otio;
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| 182 |
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| 183 | static void save_tty_chars PARAMS((TIOTYPE *));
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| 184 | static int _get_tty_settings PARAMS((int, TIOTYPE *));
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| 185 | static int get_tty_settings PARAMS((int, TIOTYPE *));
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| 186 | static int _set_tty_settings PARAMS((int, TIOTYPE *));
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| 187 | static int set_tty_settings PARAMS((int, TIOTYPE *));
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| 188 |
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| 189 | static void prepare_terminal_settings PARAMS((int, TIOTYPE, TIOTYPE *));
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| 190 |
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| 191 | static void set_special_char PARAMS((Keymap, TIOTYPE *, int, rl_command_func_t));
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| 192 |
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| 193 | static void
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| 194 | save_tty_chars (tiop)
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| 195 | TIOTYPE *tiop;
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| 196 | {
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| 197 | _rl_last_tty_chars = _rl_tty_chars;
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| 198 |
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| 199 | if (tiop->flags & SGTTY_SET)
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| 200 | {
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| 201 | _rl_tty_chars.t_erase = tiop->sgttyb.sg_erase;
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| 202 | _rl_tty_chars.t_kill = tiop->sgttyb.sg_kill;
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| 203 | }
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| 204 |
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| 205 | if (tiop->flags & TCHARS_SET)
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| 206 | {
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| 207 | _rl_tty_chars.t_intr = tiop->tchars.t_intrc;
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| 208 | _rl_tty_chars.t_quit = tiop->tchars.t_quitc;
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| 209 | _rl_tty_chars.t_start = tiop->tchars.t_startc;
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| 210 | _rl_tty_chars.t_stop = tiop->tchars.t_stopc;
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| 211 | _rl_tty_chars.t_eof = tiop->tchars.t_eofc;
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| 212 | _rl_tty_chars.t_eol = '\n';
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| 213 | _rl_tty_chars.t_eol2 = tiop->tchars.t_brkc;
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| 214 | }
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| 215 |
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| 216 | if (tiop->flags & LTCHARS_SET)
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| 217 | {
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| 218 | _rl_tty_chars.t_susp = tiop->ltchars.t_suspc;
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| 219 | _rl_tty_chars.t_dsusp = tiop->ltchars.t_dsuspc;
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| 220 | _rl_tty_chars.t_reprint = tiop->ltchars.t_rprntc;
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| 221 | _rl_tty_chars.t_flush = tiop->ltchars.t_flushc;
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| 222 | _rl_tty_chars.t_werase = tiop->ltchars.t_werasc;
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| 223 | _rl_tty_chars.t_lnext = tiop->ltchars.t_lnextc;
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| 224 | }
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| 225 |
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| 226 | _rl_tty_chars.t_status = -1;
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| 227 | }
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| 228 |
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| 229 | static int
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| 230 | get_tty_settings (tty, tiop)
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| 231 | int tty;
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| 232 | TIOTYPE *tiop;
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| 233 | {
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| 234 | set_winsize (tty);
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| 235 |
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| 236 | tiop->flags = tiop->lflag = 0;
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| 237 |
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| 238 | errno = 0;
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| 239 | if (ioctl (tty, TIOCGETP, &(tiop->sgttyb)) < 0)
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| 240 | return -1;
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| 241 | tiop->flags |= SGTTY_SET;
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| 242 |
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| 243 | #if defined (TIOCLGET)
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| 244 | if (ioctl (tty, TIOCLGET, &(tiop->lflag)) == 0)
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| 245 | tiop->flags |= LFLAG_SET;
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| 246 | #endif
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| 247 |
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| 248 | #if defined (TIOCGETC)
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| 249 | if (ioctl (tty, TIOCGETC, &(tiop->tchars)) == 0)
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| 250 | tiop->flags |= TCHARS_SET;
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| 251 | #endif
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| 252 |
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| 253 | #if defined (TIOCGLTC)
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| 254 | if (ioctl (tty, TIOCGLTC, &(tiop->ltchars)) == 0)
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| 255 | tiop->flags |= LTCHARS_SET;
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| 256 | #endif
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| 257 |
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| 258 | return 0;
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| 259 | }
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| 260 |
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| 261 | static int
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| 262 | set_tty_settings (tty, tiop)
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| 263 | int tty;
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| 264 | TIOTYPE *tiop;
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| 265 | {
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| 266 | if (tiop->flags & SGTTY_SET)
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| 267 | {
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| 268 | ioctl (tty, TIOCSETN, &(tiop->sgttyb));
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| 269 | tiop->flags &= ~SGTTY_SET;
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| 270 | }
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| 271 | readline_echoing_p = 1;
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| 272 |
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| 273 | #if defined (TIOCLSET)
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| 274 | if (tiop->flags & LFLAG_SET)
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| 275 | {
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| 276 | ioctl (tty, TIOCLSET, &(tiop->lflag));
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| 277 | tiop->flags &= ~LFLAG_SET;
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| 278 | }
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| 279 | #endif
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| 280 |
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| 281 | #if defined (TIOCSETC)
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| 282 | if (tiop->flags & TCHARS_SET)
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| 283 | {
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| 284 | ioctl (tty, TIOCSETC, &(tiop->tchars));
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| 285 | tiop->flags &= ~TCHARS_SET;
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| 286 | }
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| 287 | #endif
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| 288 |
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| 289 | #if defined (TIOCSLTC)
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| 290 | if (tiop->flags & LTCHARS_SET)
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| 291 | {
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| 292 | ioctl (tty, TIOCSLTC, &(tiop->ltchars));
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| 293 | tiop->flags &= ~LTCHARS_SET;
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| 294 | }
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| 295 | #endif
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| 296 |
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| 297 | return 0;
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| 298 | }
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| 299 |
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| 300 | static void
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| 301 | prepare_terminal_settings (meta_flag, oldtio, tiop)
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| 302 | int meta_flag;
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| 303 | TIOTYPE oldtio, *tiop;
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| 304 | {
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| 305 | readline_echoing_p = (oldtio.sgttyb.sg_flags & ECHO);
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| 306 |
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| 307 | /* Copy the original settings to the structure we're going to use for
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| 308 | our settings. */
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| 309 | tiop->sgttyb = oldtio.sgttyb;
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| 310 | tiop->lflag = oldtio.lflag;
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| 311 | #if defined (TIOCGETC)
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| 312 | tiop->tchars = oldtio.tchars;
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| 313 | #endif
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| 314 | #if defined (TIOCGLTC)
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| 315 | tiop->ltchars = oldtio.ltchars;
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| 316 | #endif
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| 317 | tiop->flags = oldtio.flags;
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| 318 |
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| 319 | /* First, the basic settings to put us into character-at-a-time, no-echo
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| 320 | input mode. */
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| 321 | tiop->sgttyb.sg_flags &= ~(ECHO | CRMOD);
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| 322 | tiop->sgttyb.sg_flags |= CBREAK;
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| 323 |
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| 324 | /* If this terminal doesn't care how the 8th bit is used, then we can
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| 325 | use it for the meta-key. If only one of even or odd parity is
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| 326 | specified, then the terminal is using parity, and we cannot. */
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| 327 | #if !defined (ANYP)
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| 328 | # define ANYP (EVENP | ODDP)
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| 329 | #endif
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| 330 | if (((oldtio.sgttyb.sg_flags & ANYP) == ANYP) ||
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| 331 | ((oldtio.sgttyb.sg_flags & ANYP) == 0))
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| 332 | {
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| 333 | tiop->sgttyb.sg_flags |= ANYP;
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| 334 |
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| 335 | /* Hack on local mode flags if we can. */
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| 336 | #if defined (TIOCLGET)
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| 337 | # if defined (LPASS8)
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| 338 | tiop->lflag |= LPASS8;
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| 339 | # endif /* LPASS8 */
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| 340 | #endif /* TIOCLGET */
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| 341 | }
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| 342 |
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| 343 | #if defined (TIOCGETC)
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| 344 | # if defined (USE_XON_XOFF)
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| 345 | /* Get rid of terminal output start and stop characters. */
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| 346 | tiop->tchars.t_stopc = -1; /* C-s */
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| 347 | tiop->tchars.t_startc = -1; /* C-q */
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| 348 |
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| 349 | /* If there is an XON character, bind it to restart the output. */
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| 350 | if (oldtio.tchars.t_startc != -1)
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| 351 | rl_bind_key (oldtio.tchars.t_startc, rl_restart_output);
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| 352 | # endif /* USE_XON_XOFF */
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| 353 |
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| 354 | /* If there is an EOF char, bind _rl_eof_char to it. */
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| 355 | if (oldtio.tchars.t_eofc != -1)
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| 356 | _rl_eof_char = oldtio.tchars.t_eofc;
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| 357 |
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| 358 | # if defined (NO_KILL_INTR)
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| 359 | /* Get rid of terminal-generated SIGQUIT and SIGINT. */
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| 360 | tiop->tchars.t_quitc = -1; /* C-\ */
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| 361 | tiop->tchars.t_intrc = -1; /* C-c */
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| 362 | # endif /* NO_KILL_INTR */
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| 363 | #endif /* TIOCGETC */
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| 364 |
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| 365 | #if defined (TIOCGLTC)
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| 366 | /* Make the interrupt keys go away. Just enough to make people happy. */
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| 367 | tiop->ltchars.t_dsuspc = -1; /* C-y */
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| 368 | tiop->ltchars.t_lnextc = -1; /* C-v */
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| 369 | #endif /* TIOCGLTC */
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| 370 | }
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| 371 |
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| 372 | #else /* !defined (NEW_TTY_DRIVER) */
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| 373 |
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| 374 | #if !defined (VMIN)
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| 375 | # define VMIN VEOF
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| 376 | #endif
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| 377 |
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| 378 | #if !defined (VTIME)
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| 379 | # define VTIME VEOL
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| 380 | #endif
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| 381 |
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| 382 | #if defined (TERMIOS_TTY_DRIVER)
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| 383 | # define TIOTYPE struct termios
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| 384 | # define DRAIN_OUTPUT(fd) tcdrain (fd)
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| 385 | # define GETATTR(tty, tiop) (tcgetattr (tty, tiop))
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| 386 | # ifdef M_UNIX
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| 387 | # define SETATTR(tty, tiop) (tcsetattr (tty, TCSANOW, tiop))
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| 388 | # else
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| 389 | # define SETATTR(tty, tiop) (tcsetattr (tty, TCSADRAIN, tiop))
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| 390 | # endif /* !M_UNIX */
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| 391 | #else
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| 392 | # define TIOTYPE struct termio
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| 393 | # define DRAIN_OUTPUT(fd)
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| 394 | # define GETATTR(tty, tiop) (ioctl (tty, TCGETA, tiop))
|
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| 395 | # define SETATTR(tty, tiop) (ioctl (tty, TCSETAW, tiop))
|
|---|
| 396 | #endif /* !TERMIOS_TTY_DRIVER */
|
|---|
| 397 |
|
|---|
| 398 | static TIOTYPE otio;
|
|---|
| 399 |
|
|---|
| 400 | static void save_tty_chars PARAMS((TIOTYPE *));
|
|---|
| 401 | static int _get_tty_settings PARAMS((int, TIOTYPE *));
|
|---|
| 402 | static int get_tty_settings PARAMS((int, TIOTYPE *));
|
|---|
| 403 | static int _set_tty_settings PARAMS((int, TIOTYPE *));
|
|---|
| 404 | static int set_tty_settings PARAMS((int, TIOTYPE *));
|
|---|
| 405 |
|
|---|
| 406 | static void prepare_terminal_settings PARAMS((int, TIOTYPE, TIOTYPE *));
|
|---|
| 407 |
|
|---|
| 408 | static void set_special_char PARAMS((Keymap, TIOTYPE *, int, rl_command_func_t));
|
|---|
| 409 | static void _rl_bind_tty_special_chars PARAMS((Keymap, TIOTYPE));
|
|---|
| 410 |
|
|---|
| 411 | #if defined (FLUSHO)
|
|---|
| 412 | # define OUTPUT_BEING_FLUSHED(tp) (tp->c_lflag & FLUSHO)
|
|---|
| 413 | #else
|
|---|
| 414 | # define OUTPUT_BEING_FLUSHED(tp) 0
|
|---|
| 415 | #endif
|
|---|
| 416 |
|
|---|
| 417 | static void
|
|---|
| 418 | save_tty_chars (tiop)
|
|---|
| 419 | TIOTYPE *tiop;
|
|---|
| 420 | {
|
|---|
| 421 | _rl_last_tty_chars = _rl_tty_chars;
|
|---|
| 422 |
|
|---|
| 423 | _rl_tty_chars.t_eof = tiop->c_cc[VEOF];
|
|---|
| 424 | _rl_tty_chars.t_eol = tiop->c_cc[VEOL];
|
|---|
| 425 | #ifdef VEOL2
|
|---|
| 426 | _rl_tty_chars.t_eol2 = tiop->c_cc[VEOL2];
|
|---|
| 427 | #endif
|
|---|
| 428 | _rl_tty_chars.t_erase = tiop->c_cc[VERASE];
|
|---|
| 429 | #ifdef VWERASE
|
|---|
| 430 | _rl_tty_chars.t_werase = tiop->c_cc[VWERASE];
|
|---|
| 431 | #endif
|
|---|
| 432 | _rl_tty_chars.t_kill = tiop->c_cc[VKILL];
|
|---|
| 433 | #ifdef VREPRINT
|
|---|
| 434 | _rl_tty_chars.t_reprint = tiop->c_cc[VREPRINT];
|
|---|
| 435 | #endif
|
|---|
| 436 | _rl_tty_chars.t_intr = tiop->c_cc[VINTR];
|
|---|
| 437 | _rl_tty_chars.t_quit = tiop->c_cc[VQUIT];
|
|---|
| 438 | #ifdef VSUSP
|
|---|
| 439 | _rl_tty_chars.t_susp = tiop->c_cc[VSUSP];
|
|---|
| 440 | #endif
|
|---|
| 441 | #ifdef VDSUSP
|
|---|
| 442 | _rl_tty_chars.t_dsusp = tiop->c_cc[VDSUSP];
|
|---|
| 443 | #endif
|
|---|
| 444 | #ifdef VSTART
|
|---|
| 445 | _rl_tty_chars.t_start = tiop->c_cc[VSTART];
|
|---|
| 446 | #endif
|
|---|
| 447 | #ifdef VSTOP
|
|---|
| 448 | _rl_tty_chars.t_stop = tiop->c_cc[VSTOP];
|
|---|
| 449 | #endif
|
|---|
| 450 | #ifdef VLNEXT
|
|---|
| 451 | _rl_tty_chars.t_lnext = tiop->c_cc[VLNEXT];
|
|---|
| 452 | #endif
|
|---|
| 453 | #ifdef VDISCARD
|
|---|
| 454 | _rl_tty_chars.t_flush = tiop->c_cc[VDISCARD];
|
|---|
| 455 | #endif
|
|---|
| 456 | #ifdef VSTATUS
|
|---|
| 457 | _rl_tty_chars.t_status = tiop->c_cc[VSTATUS];
|
|---|
| 458 | #endif
|
|---|
| 459 | }
|
|---|
| 460 |
|
|---|
| 461 | #if defined (_AIX) || defined (_AIX41)
|
|---|
| 462 | /* Currently this is only used on AIX */
|
|---|
| 463 | static void
|
|---|
| 464 | rltty_warning (msg)
|
|---|
| 465 | char *msg;
|
|---|
| 466 | {
|
|---|
| 467 | fprintf (stderr, "readline: warning: %s\n", msg);
|
|---|
| 468 | }
|
|---|
| 469 | #endif
|
|---|
| 470 |
|
|---|
| 471 | #if defined (_AIX)
|
|---|
| 472 | void
|
|---|
| 473 | setopost(tp)
|
|---|
| 474 | TIOTYPE *tp;
|
|---|
| 475 | {
|
|---|
| 476 | if ((tp->c_oflag & OPOST) == 0)
|
|---|
| 477 | {
|
|---|
| 478 | rltty_warning ("turning on OPOST for terminal\r");
|
|---|
| 479 | tp->c_oflag |= OPOST|ONLCR;
|
|---|
| 480 | }
|
|---|
| 481 | }
|
|---|
| 482 | #endif
|
|---|
| 483 |
|
|---|
| 484 | static int
|
|---|
| 485 | _get_tty_settings (tty, tiop)
|
|---|
| 486 | int tty;
|
|---|
| 487 | TIOTYPE *tiop;
|
|---|
| 488 | {
|
|---|
| 489 | int ioctl_ret;
|
|---|
| 490 |
|
|---|
| 491 | while (1)
|
|---|
| 492 | {
|
|---|
| 493 | ioctl_ret = GETATTR (tty, tiop);
|
|---|
| 494 | if (ioctl_ret < 0)
|
|---|
| 495 | {
|
|---|
| 496 | if (errno != EINTR)
|
|---|
| 497 | return -1;
|
|---|
| 498 | else
|
|---|
| 499 | continue;
|
|---|
| 500 | }
|
|---|
| 501 | if (OUTPUT_BEING_FLUSHED (tiop))
|
|---|
| 502 | {
|
|---|
| 503 | #if defined (FLUSHO) && defined (_AIX41)
|
|---|
| 504 | rltty_warning ("turning off output flushing");
|
|---|
| 505 | tiop->c_lflag &= ~FLUSHO;
|
|---|
| 506 | break;
|
|---|
| 507 | #else
|
|---|
| 508 | continue;
|
|---|
| 509 | #endif
|
|---|
| 510 | }
|
|---|
| 511 | break;
|
|---|
| 512 | }
|
|---|
| 513 |
|
|---|
| 514 | return 0;
|
|---|
| 515 | }
|
|---|
| 516 |
|
|---|
| 517 | static int
|
|---|
| 518 | get_tty_settings (tty, tiop)
|
|---|
| 519 | int tty;
|
|---|
| 520 | TIOTYPE *tiop;
|
|---|
| 521 | {
|
|---|
| 522 | set_winsize (tty);
|
|---|
| 523 |
|
|---|
| 524 | errno = 0;
|
|---|
| 525 | if (_get_tty_settings (tty, tiop) < 0)
|
|---|
| 526 | return -1;
|
|---|
| 527 |
|
|---|
| 528 | #if defined (_AIX)
|
|---|
| 529 | setopost(tiop);
|
|---|
| 530 | #endif
|
|---|
| 531 |
|
|---|
| 532 | return 0;
|
|---|
| 533 | }
|
|---|
| 534 |
|
|---|
| 535 | static int
|
|---|
| 536 | _set_tty_settings (tty, tiop)
|
|---|
| 537 | int tty;
|
|---|
| 538 | TIOTYPE *tiop;
|
|---|
| 539 | {
|
|---|
| 540 | while (SETATTR (tty, tiop) < 0)
|
|---|
| 541 | {
|
|---|
| 542 | if (errno != EINTR)
|
|---|
| 543 | return -1;
|
|---|
| 544 | errno = 0;
|
|---|
| 545 | }
|
|---|
| 546 | return 0;
|
|---|
| 547 | }
|
|---|
| 548 |
|
|---|
| 549 | static int
|
|---|
| 550 | set_tty_settings (tty, tiop)
|
|---|
| 551 | int tty;
|
|---|
| 552 | TIOTYPE *tiop;
|
|---|
| 553 | {
|
|---|
| 554 | if (_set_tty_settings (tty, tiop) < 0)
|
|---|
| 555 | return -1;
|
|---|
| 556 |
|
|---|
| 557 | #if 0
|
|---|
| 558 |
|
|---|
| 559 | #if defined (TERMIOS_TTY_DRIVER)
|
|---|
| 560 | # if defined (__ksr1__)
|
|---|
| 561 | if (ksrflow)
|
|---|
| 562 | {
|
|---|
| 563 | ksrflow = 0;
|
|---|
| 564 | tcflow (tty, TCOON);
|
|---|
| 565 | }
|
|---|
| 566 | # else /* !ksr1 */
|
|---|
| 567 | tcflow (tty, TCOON); /* Simulate a ^Q. */
|
|---|
| 568 | # endif /* !ksr1 */
|
|---|
| 569 | #else
|
|---|
| 570 | ioctl (tty, TCXONC, 1); /* Simulate a ^Q. */
|
|---|
| 571 | #endif /* !TERMIOS_TTY_DRIVER */
|
|---|
| 572 |
|
|---|
| 573 | #endif /* 0 */
|
|---|
| 574 |
|
|---|
| 575 | return 0;
|
|---|
| 576 | }
|
|---|
| 577 |
|
|---|
| 578 | static void
|
|---|
| 579 | prepare_terminal_settings (meta_flag, oldtio, tiop)
|
|---|
| 580 | int meta_flag;
|
|---|
| 581 | TIOTYPE oldtio, *tiop;
|
|---|
| 582 | {
|
|---|
| 583 | readline_echoing_p = (oldtio.c_lflag & ECHO);
|
|---|
| 584 |
|
|---|
| 585 | tiop->c_lflag &= ~(ICANON | ECHO);
|
|---|
| 586 |
|
|---|
| 587 | if ((unsigned char) oldtio.c_cc[VEOF] != (unsigned char) _POSIX_VDISABLE)
|
|---|
| 588 | _rl_eof_char = oldtio.c_cc[VEOF];
|
|---|
| 589 |
|
|---|
| 590 | #if defined (USE_XON_XOFF)
|
|---|
| 591 | #if defined (IXANY)
|
|---|
| 592 | tiop->c_iflag &= ~(IXON | IXOFF | IXANY);
|
|---|
| 593 | #else
|
|---|
| 594 | /* `strict' Posix systems do not define IXANY. */
|
|---|
| 595 | tiop->c_iflag &= ~(IXON | IXOFF);
|
|---|
| 596 | #endif /* IXANY */
|
|---|
| 597 | #endif /* USE_XON_XOFF */
|
|---|
| 598 |
|
|---|
| 599 | /* Only turn this off if we are using all 8 bits. */
|
|---|
| 600 | if (((tiop->c_cflag & CSIZE) == CS8) || meta_flag)
|
|---|
| 601 | tiop->c_iflag &= ~(ISTRIP | INPCK);
|
|---|
| 602 |
|
|---|
| 603 | /* Make sure we differentiate between CR and NL on input. */
|
|---|
| 604 | tiop->c_iflag &= ~(ICRNL | INLCR);
|
|---|
| 605 |
|
|---|
| 606 | #if !defined (HANDLE_SIGNALS)
|
|---|
| 607 | tiop->c_lflag &= ~ISIG;
|
|---|
| 608 | #else
|
|---|
| 609 | tiop->c_lflag |= ISIG;
|
|---|
| 610 | #endif
|
|---|
| 611 |
|
|---|
| 612 | tiop->c_cc[VMIN] = 1;
|
|---|
| 613 | tiop->c_cc[VTIME] = 0;
|
|---|
| 614 |
|
|---|
| 615 | #if defined (FLUSHO)
|
|---|
| 616 | if (OUTPUT_BEING_FLUSHED (tiop))
|
|---|
| 617 | {
|
|---|
| 618 | tiop->c_lflag &= ~FLUSHO;
|
|---|
| 619 | oldtio.c_lflag &= ~FLUSHO;
|
|---|
| 620 | }
|
|---|
| 621 | #endif
|
|---|
| 622 |
|
|---|
| 623 | /* Turn off characters that we need on Posix systems with job control,
|
|---|
| 624 | just to be sure. This includes ^Y and ^V. This should not really
|
|---|
| 625 | be necessary. */
|
|---|
| 626 | #if defined (TERMIOS_TTY_DRIVER) && defined (_POSIX_VDISABLE)
|
|---|
| 627 |
|
|---|
| 628 | #if defined (VLNEXT)
|
|---|
| 629 | tiop->c_cc[VLNEXT] = _POSIX_VDISABLE;
|
|---|
| 630 | #endif
|
|---|
| 631 |
|
|---|
| 632 | #if defined (VDSUSP)
|
|---|
| 633 | tiop->c_cc[VDSUSP] = _POSIX_VDISABLE;
|
|---|
| 634 | #endif
|
|---|
| 635 |
|
|---|
| 636 | #endif /* TERMIOS_TTY_DRIVER && _POSIX_VDISABLE */
|
|---|
| 637 | }
|
|---|
| 638 | #endif /* !NEW_TTY_DRIVER */
|
|---|
| 639 |
|
|---|
| 640 | /* Put the terminal in CBREAK mode so that we can detect key presses. */
|
|---|
| 641 | #if defined (NO_TTY_DRIVER)
|
|---|
| 642 | void
|
|---|
| 643 | rl_prep_terminal (meta_flag)
|
|---|
| 644 | int meta_flag;
|
|---|
| 645 | {
|
|---|
| 646 | readline_echoing_p = 1;
|
|---|
| 647 | }
|
|---|
| 648 |
|
|---|
| 649 | void
|
|---|
| 650 | rl_deprep_terminal ()
|
|---|
| 651 | {
|
|---|
| 652 | }
|
|---|
| 653 |
|
|---|
| 654 | #else /* ! NO_TTY_DRIVER */
|
|---|
| 655 | void
|
|---|
| 656 | rl_prep_terminal (meta_flag)
|
|---|
| 657 | int meta_flag;
|
|---|
| 658 | {
|
|---|
| 659 | int tty;
|
|---|
| 660 | TIOTYPE tio;
|
|---|
| 661 |
|
|---|
| 662 | if (terminal_prepped)
|
|---|
| 663 | return;
|
|---|
| 664 |
|
|---|
| 665 | /* Try to keep this function from being INTerrupted. */
|
|---|
| 666 | block_sigint ();
|
|---|
| 667 |
|
|---|
| 668 | tty = fileno (rl_instream);
|
|---|
| 669 |
|
|---|
| 670 | if (get_tty_settings (tty, &tio) < 0)
|
|---|
| 671 | {
|
|---|
| 672 | #if defined (ENOTSUP)
|
|---|
| 673 | /* MacOS X, at least, lies about the value of errno if tcgetattr fails. */
|
|---|
| 674 | if (errno == ENOTTY || errno == ENOTSUP)
|
|---|
| 675 | #else
|
|---|
| 676 | if (errno == ENOTTY)
|
|---|
| 677 | #endif
|
|---|
| 678 | readline_echoing_p = 1; /* XXX */
|
|---|
| 679 | release_sigint ();
|
|---|
| 680 | return;
|
|---|
| 681 | }
|
|---|
| 682 |
|
|---|
| 683 | otio = tio;
|
|---|
| 684 |
|
|---|
| 685 | if (_rl_bind_stty_chars)
|
|---|
| 686 | {
|
|---|
| 687 | #if defined (VI_MODE)
|
|---|
| 688 | /* If editing in vi mode, make sure we restore the bindings in the
|
|---|
| 689 | insertion keymap no matter what keymap we ended up in. */
|
|---|
| 690 | if (rl_editing_mode == vi_mode)
|
|---|
| 691 | rl_tty_unset_default_bindings (vi_insertion_keymap);
|
|---|
| 692 | else
|
|---|
| 693 | #endif
|
|---|
| 694 | rl_tty_unset_default_bindings (_rl_keymap);
|
|---|
| 695 | }
|
|---|
| 696 | save_tty_chars (&otio);
|
|---|
| 697 | RL_SETSTATE(RL_STATE_TTYCSAVED);
|
|---|
| 698 | if (_rl_bind_stty_chars)
|
|---|
| 699 | {
|
|---|
| 700 | #if defined (VI_MODE)
|
|---|
| 701 | /* If editing in vi mode, make sure we set the bindings in the
|
|---|
| 702 | insertion keymap no matter what keymap we ended up in. */
|
|---|
| 703 | if (rl_editing_mode == vi_mode)
|
|---|
| 704 | _rl_bind_tty_special_chars (vi_insertion_keymap, tio);
|
|---|
| 705 | else
|
|---|
| 706 | #endif
|
|---|
| 707 | _rl_bind_tty_special_chars (_rl_keymap, tio);
|
|---|
| 708 | }
|
|---|
| 709 |
|
|---|
| 710 | prepare_terminal_settings (meta_flag, otio, &tio);
|
|---|
| 711 |
|
|---|
| 712 | if (set_tty_settings (tty, &tio) < 0)
|
|---|
| 713 | {
|
|---|
| 714 | release_sigint ();
|
|---|
| 715 | return;
|
|---|
| 716 | }
|
|---|
| 717 |
|
|---|
| 718 | if (_rl_enable_keypad)
|
|---|
| 719 | _rl_control_keypad (1);
|
|---|
| 720 |
|
|---|
| 721 | fflush (rl_outstream);
|
|---|
| 722 | terminal_prepped = 1;
|
|---|
| 723 | RL_SETSTATE(RL_STATE_TERMPREPPED);
|
|---|
| 724 |
|
|---|
| 725 | release_sigint ();
|
|---|
| 726 | }
|
|---|
| 727 |
|
|---|
| 728 | /* Restore the terminal's normal settings and modes. */
|
|---|
| 729 | void
|
|---|
| 730 | rl_deprep_terminal ()
|
|---|
| 731 | {
|
|---|
| 732 | int tty;
|
|---|
| 733 |
|
|---|
| 734 | if (!terminal_prepped)
|
|---|
| 735 | return;
|
|---|
| 736 |
|
|---|
| 737 | /* Try to keep this function from being interrupted. */
|
|---|
| 738 | block_sigint ();
|
|---|
| 739 |
|
|---|
| 740 | tty = fileno (rl_instream);
|
|---|
| 741 |
|
|---|
| 742 | if (_rl_enable_keypad)
|
|---|
| 743 | _rl_control_keypad (0);
|
|---|
| 744 |
|
|---|
| 745 | fflush (rl_outstream);
|
|---|
| 746 |
|
|---|
| 747 | if (set_tty_settings (tty, &otio) < 0)
|
|---|
| 748 | {
|
|---|
| 749 | release_sigint ();
|
|---|
| 750 | return;
|
|---|
| 751 | }
|
|---|
| 752 |
|
|---|
| 753 | terminal_prepped = 0;
|
|---|
| 754 | RL_UNSETSTATE(RL_STATE_TERMPREPPED);
|
|---|
| 755 |
|
|---|
| 756 | release_sigint ();
|
|---|
| 757 | }
|
|---|
| 758 | #endif /* !NO_TTY_DRIVER */
|
|---|
| 759 | |
|---|
| 760 |
|
|---|
| 761 | /* **************************************************************** */
|
|---|
| 762 | /* */
|
|---|
| 763 | /* Bogus Flow Control */
|
|---|
| 764 | /* */
|
|---|
| 765 | /* **************************************************************** */
|
|---|
| 766 |
|
|---|
| 767 | int
|
|---|
| 768 | rl_restart_output (count, key)
|
|---|
| 769 | int count, key;
|
|---|
| 770 | {
|
|---|
| 771 | #if defined (__MINGW32__)
|
|---|
| 772 | return 0;
|
|---|
| 773 | #else /* !__MING32__ */
|
|---|
| 774 |
|
|---|
| 775 | int fildes = fileno (rl_outstream);
|
|---|
| 776 | #if defined (TIOCSTART)
|
|---|
| 777 | #if defined (apollo)
|
|---|
| 778 | ioctl (&fildes, TIOCSTART, 0);
|
|---|
| 779 | #else
|
|---|
| 780 | ioctl (fildes, TIOCSTART, 0);
|
|---|
| 781 | #endif /* apollo */
|
|---|
| 782 |
|
|---|
| 783 | #else /* !TIOCSTART */
|
|---|
| 784 | # if defined (TERMIOS_TTY_DRIVER)
|
|---|
| 785 | # if defined (__ksr1__)
|
|---|
| 786 | if (ksrflow)
|
|---|
| 787 | {
|
|---|
| 788 | ksrflow = 0;
|
|---|
| 789 | tcflow (fildes, TCOON);
|
|---|
| 790 | }
|
|---|
| 791 | # else /* !ksr1 */
|
|---|
| 792 | tcflow (fildes, TCOON); /* Simulate a ^Q. */
|
|---|
| 793 | # endif /* !ksr1 */
|
|---|
| 794 | # else /* !TERMIOS_TTY_DRIVER */
|
|---|
| 795 | # if defined (TCXONC)
|
|---|
| 796 | ioctl (fildes, TCXONC, TCOON);
|
|---|
| 797 | # endif /* TCXONC */
|
|---|
| 798 | # endif /* !TERMIOS_TTY_DRIVER */
|
|---|
| 799 | #endif /* !TIOCSTART */
|
|---|
| 800 |
|
|---|
| 801 | return 0;
|
|---|
| 802 | #endif /* !__MINGW32__ */
|
|---|
| 803 | }
|
|---|
| 804 |
|
|---|
| 805 | int
|
|---|
| 806 | rl_stop_output (count, key)
|
|---|
| 807 | int count, key;
|
|---|
| 808 | {
|
|---|
| 809 | #if defined (__MINGW32__)
|
|---|
| 810 | return 0;
|
|---|
| 811 | #else
|
|---|
| 812 |
|
|---|
| 813 | int fildes = fileno (rl_instream);
|
|---|
| 814 |
|
|---|
| 815 | #if defined (TIOCSTOP)
|
|---|
| 816 | # if defined (apollo)
|
|---|
| 817 | ioctl (&fildes, TIOCSTOP, 0);
|
|---|
| 818 | # else
|
|---|
| 819 | ioctl (fildes, TIOCSTOP, 0);
|
|---|
| 820 | # endif /* apollo */
|
|---|
| 821 | #else /* !TIOCSTOP */
|
|---|
| 822 | # if defined (TERMIOS_TTY_DRIVER)
|
|---|
| 823 | # if defined (__ksr1__)
|
|---|
| 824 | ksrflow = 1;
|
|---|
| 825 | # endif /* ksr1 */
|
|---|
| 826 | tcflow (fildes, TCOOFF);
|
|---|
| 827 | # else
|
|---|
| 828 | # if defined (TCXONC)
|
|---|
| 829 | ioctl (fildes, TCXONC, TCOON);
|
|---|
| 830 | # endif /* TCXONC */
|
|---|
| 831 | # endif /* !TERMIOS_TTY_DRIVER */
|
|---|
| 832 | #endif /* !TIOCSTOP */
|
|---|
| 833 |
|
|---|
| 834 | return 0;
|
|---|
| 835 | #endif /* !__MINGW32__ */
|
|---|
| 836 | }
|
|---|
| 837 |
|
|---|
| 838 | /* **************************************************************** */
|
|---|
| 839 | /* */
|
|---|
| 840 | /* Default Key Bindings */
|
|---|
| 841 | /* */
|
|---|
| 842 | /* **************************************************************** */
|
|---|
| 843 |
|
|---|
| 844 | #if !defined (NO_TTY_DRIVER)
|
|---|
| 845 | #define SET_SPECIAL(sc, func) set_special_char(kmap, &ttybuff, sc, func)
|
|---|
| 846 | #endif
|
|---|
| 847 |
|
|---|
| 848 | #if defined (NO_TTY_DRIVER)
|
|---|
| 849 |
|
|---|
| 850 | #define SET_SPECIAL(sc, func)
|
|---|
| 851 | #define RESET_SPECIAL(c)
|
|---|
| 852 |
|
|---|
| 853 | #elif defined (NEW_TTY_DRIVER)
|
|---|
| 854 | static void
|
|---|
| 855 | set_special_char (kmap, tiop, sc, func)
|
|---|
| 856 | Keymap kmap;
|
|---|
| 857 | TIOTYPE *tiop;
|
|---|
| 858 | int sc;
|
|---|
| 859 | rl_command_func_t *func;
|
|---|
| 860 | {
|
|---|
| 861 | if (sc != -1 && kmap[(unsigned char)sc].type == ISFUNC)
|
|---|
| 862 | kmap[(unsigned char)sc].function = func;
|
|---|
| 863 | }
|
|---|
| 864 |
|
|---|
| 865 | #define RESET_SPECIAL(c) \
|
|---|
| 866 | if (c != -1 && kmap[(unsigned char)c].type == ISFUNC)
|
|---|
| 867 | kmap[(unsigned char)c].function = rl_insert;
|
|---|
| 868 |
|
|---|
| 869 | static void
|
|---|
| 870 | _rl_bind_tty_special_chars (kmap, ttybuff)
|
|---|
| 871 | Keymap kmap;
|
|---|
| 872 | TIOTYPE ttybuff;
|
|---|
| 873 | {
|
|---|
| 874 | if (ttybuff.flags & SGTTY_SET)
|
|---|
| 875 | {
|
|---|
| 876 | SET_SPECIAL (ttybuff.sgttyb.sg_erase, rl_rubout);
|
|---|
| 877 | SET_SPECIAL (ttybuff.sgttyb.sg_kill, rl_unix_line_discard);
|
|---|
| 878 | }
|
|---|
| 879 |
|
|---|
| 880 | # if defined (TIOCGLTC)
|
|---|
| 881 | if (ttybuff.flags & LTCHARS_SET)
|
|---|
| 882 | {
|
|---|
| 883 | SET_SPECIAL (ttybuff.ltchars.t_werasc, rl_unix_word_rubout);
|
|---|
| 884 | SET_SPECIAL (ttybuff.ltchars.t_lnextc, rl_quoted_insert);
|
|---|
| 885 | }
|
|---|
| 886 | # endif /* TIOCGLTC */
|
|---|
| 887 | }
|
|---|
| 888 |
|
|---|
| 889 | #else /* !NEW_TTY_DRIVER */
|
|---|
| 890 | static void
|
|---|
| 891 | set_special_char (kmap, tiop, sc, func)
|
|---|
| 892 | Keymap kmap;
|
|---|
| 893 | TIOTYPE *tiop;
|
|---|
| 894 | int sc;
|
|---|
| 895 | rl_command_func_t *func;
|
|---|
| 896 | {
|
|---|
| 897 | unsigned char uc;
|
|---|
| 898 |
|
|---|
| 899 | uc = tiop->c_cc[sc];
|
|---|
| 900 | if (uc != (unsigned char)_POSIX_VDISABLE && kmap[uc].type == ISFUNC)
|
|---|
| 901 | kmap[uc].function = func;
|
|---|
| 902 | }
|
|---|
| 903 |
|
|---|
| 904 | /* used later */
|
|---|
| 905 | #define RESET_SPECIAL(uc) \
|
|---|
| 906 | if (uc != (unsigned char)_POSIX_VDISABLE && kmap[uc].type == ISFUNC) \
|
|---|
| 907 | kmap[uc].function = rl_insert;
|
|---|
| 908 |
|
|---|
| 909 | static void
|
|---|
| 910 | _rl_bind_tty_special_chars (kmap, ttybuff)
|
|---|
| 911 | Keymap kmap;
|
|---|
| 912 | TIOTYPE ttybuff;
|
|---|
| 913 | {
|
|---|
| 914 | SET_SPECIAL (VERASE, rl_rubout);
|
|---|
| 915 | SET_SPECIAL (VKILL, rl_unix_line_discard);
|
|---|
| 916 |
|
|---|
| 917 | # if defined (VLNEXT) && defined (TERMIOS_TTY_DRIVER)
|
|---|
| 918 | SET_SPECIAL (VLNEXT, rl_quoted_insert);
|
|---|
| 919 | # endif /* VLNEXT && TERMIOS_TTY_DRIVER */
|
|---|
| 920 |
|
|---|
| 921 | # if defined (VWERASE) && defined (TERMIOS_TTY_DRIVER)
|
|---|
| 922 | SET_SPECIAL (VWERASE, rl_unix_word_rubout);
|
|---|
| 923 | # endif /* VWERASE && TERMIOS_TTY_DRIVER */
|
|---|
| 924 | }
|
|---|
| 925 |
|
|---|
| 926 | #endif /* !NEW_TTY_DRIVER */
|
|---|
| 927 |
|
|---|
| 928 | /* Set the system's default editing characters to their readline equivalents
|
|---|
| 929 | in KMAP. Should be static, now that we have rl_tty_set_default_bindings. */
|
|---|
| 930 | void
|
|---|
| 931 | rltty_set_default_bindings (kmap)
|
|---|
| 932 | Keymap kmap;
|
|---|
| 933 | {
|
|---|
| 934 | #if !defined (NO_TTY_DRIVER)
|
|---|
| 935 | TIOTYPE ttybuff;
|
|---|
| 936 | int tty;
|
|---|
| 937 | static int called = 0;
|
|---|
| 938 |
|
|---|
| 939 | tty = fileno (rl_instream);
|
|---|
| 940 |
|
|---|
| 941 | if (get_tty_settings (tty, &ttybuff) == 0)
|
|---|
| 942 | _rl_bind_tty_special_chars (kmap, ttybuff);
|
|---|
| 943 | #endif
|
|---|
| 944 | }
|
|---|
| 945 |
|
|---|
| 946 | /* New public way to set the system default editing chars to their readline
|
|---|
| 947 | equivalents. */
|
|---|
| 948 | void
|
|---|
| 949 | rl_tty_set_default_bindings (kmap)
|
|---|
| 950 | Keymap kmap;
|
|---|
| 951 | {
|
|---|
| 952 | rltty_set_default_bindings (kmap);
|
|---|
| 953 | }
|
|---|
| 954 |
|
|---|
| 955 | /* Rebind all of the tty special chars that readline worries about back
|
|---|
| 956 | to self-insert. Call this before saving the current terminal special
|
|---|
| 957 | chars with save_tty_chars(). This only works on POSIX termios or termio
|
|---|
| 958 | systems. */
|
|---|
| 959 | void
|
|---|
| 960 | rl_tty_unset_default_bindings (kmap)
|
|---|
| 961 | Keymap kmap;
|
|---|
| 962 | {
|
|---|
| 963 | /* Don't bother before we've saved the tty special chars at least once. */
|
|---|
| 964 | if (RL_ISSTATE(RL_STATE_TTYCSAVED) == 0)
|
|---|
| 965 | return;
|
|---|
| 966 |
|
|---|
| 967 | RESET_SPECIAL (_rl_tty_chars.t_erase);
|
|---|
| 968 | RESET_SPECIAL (_rl_tty_chars.t_kill);
|
|---|
| 969 |
|
|---|
| 970 | # if defined (VLNEXT) && defined (TERMIOS_TTY_DRIVER)
|
|---|
| 971 | RESET_SPECIAL (_rl_tty_chars.t_lnext);
|
|---|
| 972 | # endif /* VLNEXT && TERMIOS_TTY_DRIVER */
|
|---|
| 973 |
|
|---|
| 974 | # if defined (VWERASE) && defined (TERMIOS_TTY_DRIVER)
|
|---|
| 975 | RESET_SPECIAL (_rl_tty_chars.t_werase);
|
|---|
| 976 | # endif /* VWERASE && TERMIOS_TTY_DRIVER */
|
|---|
| 977 | }
|
|---|
| 978 |
|
|---|
| 979 | #if defined (HANDLE_SIGNALS)
|
|---|
| 980 |
|
|---|
| 981 | #if defined (NEW_TTY_DRIVER) || defined (NO_TTY_DRIVER)
|
|---|
| 982 | int
|
|---|
| 983 | _rl_disable_tty_signals ()
|
|---|
| 984 | {
|
|---|
| 985 | return 0;
|
|---|
| 986 | }
|
|---|
| 987 |
|
|---|
| 988 | int
|
|---|
| 989 | _rl_restore_tty_signals ()
|
|---|
| 990 | {
|
|---|
| 991 | return 0;
|
|---|
| 992 | }
|
|---|
| 993 | #else
|
|---|
| 994 |
|
|---|
| 995 | static TIOTYPE sigstty, nosigstty;
|
|---|
| 996 | static int tty_sigs_disabled = 0;
|
|---|
| 997 |
|
|---|
| 998 | int
|
|---|
| 999 | _rl_disable_tty_signals ()
|
|---|
| 1000 | {
|
|---|
| 1001 | if (tty_sigs_disabled)
|
|---|
| 1002 | return 0;
|
|---|
| 1003 |
|
|---|
| 1004 | if (_get_tty_settings (fileno (rl_instream), &sigstty) < 0)
|
|---|
| 1005 | return -1;
|
|---|
| 1006 |
|
|---|
| 1007 | nosigstty = sigstty;
|
|---|
| 1008 |
|
|---|
| 1009 | nosigstty.c_lflag &= ~ISIG;
|
|---|
| 1010 | nosigstty.c_iflag &= ~IXON;
|
|---|
| 1011 |
|
|---|
| 1012 | if (_set_tty_settings (fileno (rl_instream), &nosigstty) < 0)
|
|---|
| 1013 | return (_set_tty_settings (fileno (rl_instream), &sigstty));
|
|---|
| 1014 |
|
|---|
| 1015 | tty_sigs_disabled = 1;
|
|---|
| 1016 | return 0;
|
|---|
| 1017 | }
|
|---|
| 1018 |
|
|---|
| 1019 | int
|
|---|
| 1020 | _rl_restore_tty_signals ()
|
|---|
| 1021 | {
|
|---|
| 1022 | int r;
|
|---|
| 1023 |
|
|---|
| 1024 | if (tty_sigs_disabled == 0)
|
|---|
| 1025 | return 0;
|
|---|
| 1026 |
|
|---|
| 1027 | r = _set_tty_settings (fileno (rl_instream), &sigstty);
|
|---|
| 1028 |
|
|---|
| 1029 | if (r == 0)
|
|---|
| 1030 | tty_sigs_disabled = 0;
|
|---|
| 1031 |
|
|---|
| 1032 | return r;
|
|---|
| 1033 | }
|
|---|
| 1034 | #endif /* !NEW_TTY_DRIVER */
|
|---|
| 1035 |
|
|---|
| 1036 | #endif /* HANDLE_SIGNALS */
|
|---|
