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Add bash 5.2 to third_party
This commit is contained in:
Justine Tunney
parent
e1f65d5f2b
commit
f4a2a65cc8
237 changed files with 120739 additions and 1 deletions
330
third_party/bash/shtty.c
vendored
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330
third_party/bash/shtty.c
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/*
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* shtty.c -- abstract interface to the terminal, focusing on capabilities.
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*/
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/* Copyright (C) 1999 Free Software Foundation, Inc.
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This file is part of GNU Bash, the Bourne Again SHell.
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Bash 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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Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#include "shtty.h"
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static TTYSTRUCT ttin, ttout;
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static int ttsaved = 0;
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int
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ttgetattr(fd, ttp)
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int fd;
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TTYSTRUCT *ttp;
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{
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#ifdef TERMIOS_TTY_DRIVER
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return tcgetattr(fd, ttp);
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#else
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# ifdef TERMIO_TTY_DRIVER
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return ioctl(fd, TCGETA, ttp);
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# else
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return ioctl(fd, TIOCGETP, ttp);
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# endif
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#endif
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}
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int
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ttsetattr(fd, ttp)
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int fd;
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TTYSTRUCT *ttp;
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{
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#ifdef TERMIOS_TTY_DRIVER
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return tcsetattr(fd, TCSADRAIN, ttp);
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#else
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# ifdef TERMIO_TTY_DRIVER
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return ioctl(fd, TCSETAW, ttp);
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# else
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return ioctl(fd, TIOCSETN, ttp);
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# endif
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#endif
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}
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void
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ttsave()
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{
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if (ttsaved)
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return;
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ttgetattr (0, &ttin);
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ttgetattr (1, &ttout);
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ttsaved = 1;
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}
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void
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ttrestore()
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{
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if (ttsaved == 0)
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return;
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ttsetattr (0, &ttin);
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ttsetattr (1, &ttout);
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ttsaved = 0;
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}
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/* Retrieve the internally-saved attributes associated with tty fd FD. */
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TTYSTRUCT *
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ttattr (fd)
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int fd;
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{
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if (ttsaved == 0)
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return ((TTYSTRUCT *)0);
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if (fd == 0)
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return &ttin;
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else if (fd == 1)
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return &ttout;
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else
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return ((TTYSTRUCT *)0);
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}
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/*
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* Change attributes in ttp so that when it is installed using
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* ttsetattr, the terminal will be in one-char-at-a-time mode.
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*/
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int
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tt_setonechar(ttp)
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TTYSTRUCT *ttp;
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{
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#if defined (TERMIOS_TTY_DRIVER) || defined (TERMIO_TTY_DRIVER)
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/* XXX - might not want this -- it disables erase and kill processing. */
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ttp->c_lflag &= ~ICANON;
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ttp->c_lflag |= ISIG;
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# ifdef IEXTEN
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ttp->c_lflag |= IEXTEN;
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# endif
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ttp->c_iflag |= ICRNL; /* make sure we get CR->NL on input */
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ttp->c_iflag &= ~INLCR; /* but no NL->CR */
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# ifdef OPOST
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ttp->c_oflag |= OPOST;
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# endif
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# ifdef ONLCR
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ttp->c_oflag |= ONLCR;
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# endif
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# ifdef OCRNL
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ttp->c_oflag &= ~OCRNL;
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# endif
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# ifdef ONOCR
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ttp->c_oflag &= ~ONOCR;
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# endif
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# ifdef ONLRET
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ttp->c_oflag &= ~ONLRET;
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# endif
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ttp->c_cc[VMIN] = 1;
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ttp->c_cc[VTIME] = 0;
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#else
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ttp->sg_flags |= CBREAK;
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#endif
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return 0;
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}
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/* Set the tty associated with FD and TTP into one-character-at-a-time mode */
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int
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ttfd_onechar (fd, ttp)
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int fd;
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TTYSTRUCT *ttp;
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{
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if (tt_setonechar(ttp) < 0)
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return -1;
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return (ttsetattr (fd, ttp));
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}
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/* Set the terminal into one-character-at-a-time mode */
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int
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ttonechar ()
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{
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TTYSTRUCT tt;
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if (ttsaved == 0)
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return -1;
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tt = ttin;
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return (ttfd_onechar (0, &tt));
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}
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/*
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* Change attributes in ttp so that when it is installed using
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* ttsetattr, the terminal will be in no-echo mode.
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*/
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int
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tt_setnoecho(ttp)
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TTYSTRUCT *ttp;
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{
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#if defined (TERMIOS_TTY_DRIVER) || defined (TERMIO_TTY_DRIVER)
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ttp->c_lflag &= ~(ECHO|ECHOK|ECHONL);
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#else
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ttp->sg_flags &= ~ECHO;
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#endif
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return 0;
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}
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/* Set the tty associated with FD and TTP into no-echo mode */
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int
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ttfd_noecho (fd, ttp)
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int fd;
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TTYSTRUCT *ttp;
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{
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if (tt_setnoecho (ttp) < 0)
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return -1;
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return (ttsetattr (fd, ttp));
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}
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/* Set the terminal into no-echo mode */
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int
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ttnoecho ()
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{
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TTYSTRUCT tt;
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if (ttsaved == 0)
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return -1;
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tt = ttin;
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return (ttfd_noecho (0, &tt));
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}
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/*
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* Change attributes in ttp so that when it is installed using
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* ttsetattr, the terminal will be in eight-bit mode (pass8).
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*/
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int
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tt_seteightbit (ttp)
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TTYSTRUCT *ttp;
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{
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#if defined (TERMIOS_TTY_DRIVER) || defined (TERMIO_TTY_DRIVER)
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ttp->c_iflag &= ~ISTRIP;
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ttp->c_cflag |= CS8;
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ttp->c_cflag &= ~PARENB;
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#else
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ttp->sg_flags |= ANYP;
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#endif
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return 0;
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}
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/* Set the tty associated with FD and TTP into eight-bit mode */
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int
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ttfd_eightbit (fd, ttp)
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int fd;
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TTYSTRUCT *ttp;
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{
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if (tt_seteightbit (ttp) < 0)
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return -1;
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return (ttsetattr (fd, ttp));
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}
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/* Set the terminal into eight-bit mode */
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int
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tteightbit ()
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{
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TTYSTRUCT tt;
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if (ttsaved == 0)
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return -1;
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tt = ttin;
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return (ttfd_eightbit (0, &tt));
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}
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/*
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* Change attributes in ttp so that when it is installed using
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* ttsetattr, the terminal will be in non-canonical input mode.
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*/
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int
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tt_setnocanon (ttp)
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TTYSTRUCT *ttp;
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{
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#if defined (TERMIOS_TTY_DRIVER) || defined (TERMIO_TTY_DRIVER)
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ttp->c_lflag &= ~ICANON;
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#endif
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return 0;
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}
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/* Set the tty associated with FD and TTP into non-canonical mode */
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int
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ttfd_nocanon (fd, ttp)
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int fd;
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TTYSTRUCT *ttp;
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{
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if (tt_setnocanon (ttp) < 0)
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return -1;
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return (ttsetattr (fd, ttp));
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}
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/* Set the terminal into non-canonical mode */
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int
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ttnocanon ()
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{
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TTYSTRUCT tt;
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if (ttsaved == 0)
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return -1;
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tt = ttin;
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return (ttfd_nocanon (0, &tt));
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}
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/*
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* Change attributes in ttp so that when it is installed using
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* ttsetattr, the terminal will be in cbreak, no-echo mode.
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*/
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int
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tt_setcbreak(ttp)
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TTYSTRUCT *ttp;
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{
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if (tt_setonechar (ttp) < 0)
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return -1;
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return (tt_setnoecho (ttp));
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}
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/* Set the tty associated with FD and TTP into cbreak (no-echo,
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one-character-at-a-time) mode */
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int
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ttfd_cbreak (fd, ttp)
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int fd;
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TTYSTRUCT *ttp;
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{
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if (tt_setcbreak (ttp) < 0)
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return -1;
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return (ttsetattr (fd, ttp));
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}
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/* Set the terminal into cbreak (no-echo, one-character-at-a-time) mode */
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int
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ttcbreak ()
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{
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TTYSTRUCT tt;
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if (ttsaved == 0)
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return -1;
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tt = ttin;
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return (ttfd_cbreak (0, &tt));
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}
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