/* isatty.c (emx+gcc) -- Copyright (c) 1990-1993 by Eberhard Mattes */

#include <sys/emx.h>
#include <io.h>
#include <errno.h>

int isatty (int handle)
{
  if (handle < 0 || handle >= _nfiles)
    {
      errno = EBADF;
      return (0);
    }
  else
    return ((_files[handle] & F_DEV) ? 1 : 0);
}