diff options
Diffstat (limited to 'lib/util/cfmakeraw.c')
| -rw-r--r-- | lib/util/cfmakeraw.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/lib/util/cfmakeraw.c b/lib/util/cfmakeraw.c new file mode 100644 index 0000000..956001f --- /dev/null +++ b/lib/util/cfmakeraw.c @@ -0,0 +1,58 @@ +/* + * SPDX-License-Identifier: ISC + * + * Copyright (c) 2019-2020 Todd C. Miller <Todd.Miller@sudo.ws> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * This is an open source non-commercial project. Dear PVS-Studio, please check it. + * PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com + */ + +#include <config.h> + +#include <termios.h> + +#include "sudo_compat.h" + +/* Non-standard termios input flags */ +#ifndef IUCLC +# define IUCLC 0 +#endif +#ifndef IMAXBEL +# define IMAXBEL 0 +#endif + +/* Non-standard termios local flags */ +#ifndef IEXTEN +# define IEXTEN 0 +#endif + +/* + * Set termios to raw mode (BSD extension). + */ +void +sudo_cfmakeraw(struct termios *term) +{ + /* Set terminal to raw mode */ + CLR(term->c_iflag, + IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON|IMAXBEL|IUCLC); + CLR(term->c_oflag, OPOST); + CLR(term->c_lflag, ECHO|ECHONL|ICANON|ISIG|IEXTEN); + CLR(term->c_cflag, CSIZE|PARENB); + SET(term->c_cflag, CS8); + term->c_cc[VMIN] = 1; + term->c_cc[VTIME] = 0; +} |