WordPress MultiSite and Genesis: Change Title Area URLs to main Site URL

wpms-genesis-header-urls.php

<?php

// Change header URL for sub-sites to main site's URL
add_filter( 'genesis_seo_title', 'tcd_change_header_url', 10, 3 );
function tcd_change_header_url( $title, $inside, $wrap ) {

	if ( is_main_site() ) {

		$network_name = get_bloginfo( 'name' );
		$network_url = get_bloginfo( 'url' );

	} else {

		switch_to_blog(1);
		$network_name = get_bloginfo( 'name' );
		$network_url = get_bloginfo( 'url' );
		restore_current_blog();

	}

	$new_url = "<a href='$network_url' title='%s'>%s</a>";
	$inside = sprintf( $new_url, esc_attr( $network_name ), $network_name );

	return sprintf( "<{$wrap} %s>%s</{$wrap}>", genesis_attr( 'site-title' ), $inside );

}