/*

* Copyright 2011 The Emscripten Authors. All rights reserved.

* Emscripten is available under two separate licenses, the MIT license and the

* University of Illinois/NCSA Open Source License. Both these licenses can be

* found in the LICENSE file.

*/

#include <assert.h>

#include <errno.h>

#include <fcntl.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <unistd.h>

int main() {

int err;

err = isatty(-1);

assert(!err);

assert(errno == EBADF);

err = isatty(open("/dev/stdin", O_RDONLY));

assert(err == 1);

err = isatty(open("/dev/null", O_RDONLY));

assert(!err);

err = isatty(open("/dev", O_RDONLY));

assert(!err);

puts("success");

return EXIT_SUCCESS;

}