cosmopolitan/dsp/tty/setraw.c

53 lines
2.8 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "dsp/tty/tty.h"
#include "libc/calls/termios.h"
#include "libc/sysv/consts/termios.h"
/**
* Enables direct teletypewriter communication.
*
* @see ttyconfig(), ttyrestore()
*/
int ttysetraw(struct termios *conf, int64_t flags) {
conf->c_iflag &= ~(INPCK | ISTRIP | PARMRK | INLCR | IGNCR | ICRNL | IXON);
conf->c_lflag &= ~(IEXTEN | ICANON);
conf->c_cflag &= ~(CSIZE | PARENB);
conf->c_cflag |= CS8;
conf->c_iflag |= IUTF8;
/* if (flags & kTtyLfToCrLf) { */
/* /\* conf->c_oflag &= ~(OLCUC | OCRNL | ONLRET | OFILL | OFDEL); *\/ */
/* /\* conf->c_oflag |= ONLCR | ONOCR; *\/ */
/* conf->c_oflag |= ONLCR; */
/* } else { */
/* conf->c_oflag &= ~OPOST; */
/* } */
if (!(flags & kTtySigs)) {
conf->c_iflag &= ~(IGNBRK | BRKINT);
conf->c_lflag &= ~(ISIG);
}
if (flags & kTtyEcho) {
conf->c_lflag |= ECHO | ECHONL;
} else {
conf->c_lflag &= ~(ECHO | ECHONL);
}
return 0;
}