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/* $OpenBSD: test_tty.c,v 1.5 2017/02/21 15:46:25 tb Exp $ */
/*
* Copyright (c) 2015 Sebastien Marie <semarie@openbsd.org>
*
* 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.
*/
#include <sys/ioctl.h>
#include <sys/termios.h>
#include <sys/ttycom.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <util.h>
void
test_request_tty()
{
int amaster, fd;
struct termios ts; /* sys/termios.h */
struct winsize ws; /* sys/ttycom.h */
/* get a tty */
if (openpty(&amaster, &fd, NULL, NULL, NULL) == -1)
_exit(errno);
close(amaster);
/* tests that need tty+proc (stdio for pledge(2) */
if (pledge("stdio tty proc", NULL) == -1)
_exit(errno);
/* TIOCSPGRP (tty+proc) */
if ((tcsetpgrp(fd, 1) == -1) && (errno != ENOTTY))
_exit(errno);
errno = 0; /* discard error */
/* tests that only need tty (and stdio for calling ioctl(2)) */
if (pledge("stdio tty", NULL) == -1)
_exit(errno);
/* TIOCGETA */
if (ioctl(fd, TIOCGETA, &ts) == -1)
_exit(errno);
/* TIOCGWINSZ */
if (ioctl(fd, TIOCGWINSZ, &ws) == -1)
_exit(errno);
/* TIOCSBRK */
if ((ioctl(fd, TIOCSBRK, NULL) == -1) && (errno != ENOTTY))
_exit(errno);
errno = 0; /* discard error */
/* TIOCCDTR */
if ((ioctl(fd, TIOCCDTR, NULL) == -1) && (errno != ENOTTY))
_exit(errno);
errno = 0; /* discard error */
/* TIOCSETA */
if (tcsetattr(fd, TCSANOW, &ts) == -1)
_exit(errno);
/* TIOCSETAW */
if (tcsetattr(fd, TCSADRAIN, &ts) == -1)
_exit(errno);
/* TIOCSETAF */
if (tcsetattr(fd, TCSAFLUSH, &ts) == -1)
_exit(errno);
}
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