cosmopolitan/libc/calls/openpty.c

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2020-06-15 14:18:57 +00:00
/*-*- 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 "libc/calls/calls.h"
#include "libc/calls/termios.h"
#include "libc/sysv/consts/o.h"
#include "libc/sysv/consts/pty.h"
#include "libc/sysv/errfuns.h"
/**
* Opens new pseudo teletypewriter.
*
* @param ilduce receives controlling tty rw fd on success
* @param aworker receives subordinate tty rw fd on success
* @param termp may be passed to tune a century of legacy behaviors
* @param winp may be passed to set terminal display dimensions
* @params flags is usually O_RDWR|O_NOCTTY
* @return file descriptor, or -1 w/ errno
*/
int openpty(int *ilduce, int *aworker, char *name, const struct termios *termp,
const struct winsize *winp) {
return enosys();
/* TODO(jart) */
/* int fd, flags; */
/* flags = O_RDWR | O_NOCTTY; */
/* if ((fd = posix_openpt(flags)) != -1) { */
/* if (ioctl(m, TIOCSPTLCK, &n) || ioctl(m, TIOCGPTN, &n)) { */
/* } else { */
/* close(fd); */
/* } */
/* } else { */
/* return -1; */
/* } */
}