test/termios/test_tcgetattr.c

/*
 * Copyright 2013 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 <signal.h>
#include <stdio.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>

static void create_file(const char *path, const char *buffer, int mode) {
  int fd = open(path, O_WRONLY | O_CREAT | O_EXCL, mode);
  assert(fd >= 0);

  int err = write(fd, buffer, sizeof(char) * strlen(buffer));
  assert(err ==  (sizeof(char) * strlen(buffer)));

  close(fd);
}

void setup() {
  create_file("test.txt", "abcdefg", 0666);
}

void test() {
  struct termios tc;
  int ret;
  int fd;

  fd = open("test.txt", O_RDONLY);

  ret = tcgetattr(fd, &tc);
  assert(ret == -1);
  assert(errno == ENOTTY);

  ret = tcgetattr(STDIN_FILENO, &tc);
  assert(!ret);

  ret = tcsetattr(fd, 0, &tc);
  assert(ret == -1);
  assert(errno == ENOTTY);

  ret = tcsetattr(STDIN_FILENO, 0, &tc);
  assert(!ret);

  close(fd);

  puts("done");
}

int main() {
  setup();
  test();
  return 0;
}