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/*
* Copyright (c) 2020, The Linux Foundation. All rights reserved.
* Copyright 2017 Intel Corporation
* Jesse Barnes <jesse.barnes@intel.com>
* Manasi Navare <manasi.d.navare@intel.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include "igt.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <signal.h>
#include <termios.h>
#include <libgen.h>
#include <sys/stat.h>
#include "igt_dp_compliance.h"
static int tio_fd;
struct termios saved_tio;
void enter_exec_path(char **argv)
{
char exec_path[PATH_MAX];
int ret;
memset(exec_path, 0, sizeof(exec_path));
ret = readlink("/proc/self/exe", exec_path, sizeof(exec_path)-1);
igt_assert(ret != -1);
ret = chdir(dirname(exec_path));
igt_assert_eq(ret, 0);
}
static void restore_termio_mode(int sig)
{
tcsetattr(tio_fd, TCSANOW, &saved_tio);
close(tio_fd);
}
void set_termio_mode(void)
{
struct termios tio;
/* don't attempt to set terminal attributes if not in the foreground
* process group
*/
if (getpgrp() != tcgetpgrp(STDOUT_FILENO))
return;
tio_fd = dup(STDIN_FILENO);
tcgetattr(tio_fd, &saved_tio);
igt_install_exit_handler(restore_termio_mode);
tio = saved_tio;
tio.c_lflag &= ~(ICANON | ECHO);
tcsetattr(tio_fd, TCSANOW, &tio);
}
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