/* Look for eyesdn header */
errno = WTAP_ERR_CANT_READ;
- bytes_read = file_read(&magic, 1, sizeof magic, wth->fh);
+ bytes_read = file_read(&magic, sizeof magic, wth->fh);
if (bytes_read != sizeof magic) {
*err = file_error(wth->fh);
if (*err != 0)