termios/cfmakeraw.c

   1 /* Copyright (C) 1992-2024 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <termios.h>
  19
  20 /* Set *T to indicate raw mode.  */
  21 void
  22 cfmakeraw (struct termios *t)
  23 {
  24   t->c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
  25   t->c_oflag &= ~OPOST;
  26   t->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
  27   t->c_cflag &= ~(CSIZE|PARENB);
  28   t->c_cflag |= CS8;
  29   t->c_cc[VMIN] = 1;            /* read returns when one char is available.  */
  30   t->c_cc[VTIME] = 0;
  31 }