'\" t
.\" Copyright 2006-2015, Michael Kerrisk <mtk.manpages@gmail.com>
.\" Copyright, the authors of the Linux man-pages project
.\"
.\" SPDX-License-Identifier: GPL-2.0-or-later
.\"
.TH cfmakeraw 3 2026-07-02 "Linux man-pages 6.19"
.SH NAME
cfmakeraw
\-
set terminal raw mode
.SH LIBRARY
Standard C library
.RI ( libc ,\~ \-lc )
.SH SYNOPSIS
.nf
.BR #define\~_DEFAULT_SOURCE "  /* See feature_test_macros(7) */"
.B #include <termios.h>
.P
.BI "void cfmakeraw(struct termios *" termios_p );
.fi
.SH DESCRIPTION
.BR cfmakeraw ()
sets the terminal to something like the
"raw" mode of the old Version 7 terminal driver:
input is available character by character,
echoing is disabled,
and all special processing of terminal input and output characters is disabled.
.P
The terminal attributes are set as follows:
.P
.in +4n
.EX
termios_p\->c_iflag &= \[ti](IGNBRK | BRKINT | PARMRK | ISTRIP
                | INLCR | IGNCR | ICRNL | IXON);
termios_p\->c_oflag &= \[ti]OPOST;
termios_p\->c_lflag &= \[ti](ECHO | ECHONL | ICANON | ISIG | IEXTEN);
termios_p\->c_cflag &= \[ti](CSIZE | PARENB);
termios_p\->c_cflag |= CS8;
.EE
.in
.SH RETURN VALUE
.TP
.B 0
on success.
.TP
.B \-1
on failure and set
.I errno
to indicate the error.
.SH ATTRIBUTES
For an explanation of the terms used in this section,
see
.BR attributes (7).
.TS
allbox;
lbx lb lb
l l l.
Interface	Attribute	Value
T{
.na
.nh
.BR cfmakeraw ()
T}	Thread safety	MT-Safe
.TE
.SH STANDARDS
BSD.
.SH HISTORY
BSD.
.SH SEE ALSO
.BR termios (3type),
.BR termios (7)