// Copyright 2018 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 <errno.h>

#include <fcntl.h>

#include <stdio.h>

#include <unistd.h>

#include <sys/stat.h>

#include <sys/types.h>

int main() {

const char *filename = "test.dat";

// Create a file

int fd = open(filename, O_CREAT|O_WRONLY);

if (fd == -1) {

return 1;

}

// Write to it

if (write(fd, "XXXX", 4) != 4) {

return 2;

}

// Close it

if (close(fd)) {

return 3;

}

// This write should fail

if (write(fd, "YYYY", 4) != -1) {

return 4;

}

// The error number is EBADF

if (errno != EBADF) {

return 5;

}

printf("ok\n");

return 0;

}