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

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

int setmode (int handle, int mode)
{
  int old_mode;

  if (handle < 0 || handle >= _nfiles)
    {
      errno = EBADF;
      return (-1);
    }
  old_mode = ((_files[handle] & O_TEXT) ? O_TEXT : O_BINARY);
  if (mode == O_BINARY)
    _files[handle] &= ~O_TEXT;
  else if (mode == O_TEXT)
    _files[handle] |= O_TEXT;
  else
    {
      errno = EINVAL;
      return (-1);
    }
  return (old_mode);
}