Problem with truncate link text

Im trying to truncate the link text.

function.php

function entry_header_title( $link = true, $before = '', $after = '', $echo = true, $length = false ) {

	$title = get_the_title();
	if ( $length && is_numeric($length) ) {
		$title = substr( $title, 0, $length );
	}

	if ( strlen($title)> 0 ) {
		$title = apply_filters('entry_header_title', $before . $title . $after, $before, $after);
			if ( true == $link )
			$title = '<a href="' . get_permalink() . '" title="Read Post ' . get_the_title() . '">' . get_the_title() . '</a>';
			echo $title;
	}
 }

postpage
<h2 class="entry-title"><?php entry_header_title( true, '', '...', true, '45' ); ?></h2>

I have gotten the nonlink to truncate but i have no idea how to truncate the link text