WordPress at a glance
function is not described

wp_cache_add_index_protection() WPSCache 1.0

No Hooks.

Return

Null. Nothing.

Usage

wp_cache_add_index_protection();

Code of wp_cache_add_index_protection() WPSCache 1.7.1

<?php
function wp_cache_add_index_protection() {
	global $cache_path, $blog_cache_dir;

	if ( is_dir( $cache_path ) && false == is_file( "$cache_path/index.html" ) ) {
		$page = wp_remote_get( home_url( "/wp-content/cache/" ) );
		if ( false == is_wp_error( $page ) ) {
			if ( false == get_site_option( 'wp_super_cache_index_detected' )
				&& $page[ 'response' ][ 'code' ] == 200
				&& stripos( $page[ 'body' ], 'index of' ) ) {
				add_site_option( 'wp_super_cache_index_detected', 1 ); // only show this once
			}
		}
		if ( ! function_exists( 'insert_with_markers' ) ) {
                        include_once( ABSPATH . 'wp-admin/includes/misc.php' );
		}
		insert_with_markers( $cache_path . '.htaccess', "INDEX", array( 'Options -Indexes' ) );
	}

	$directories = array( $cache_path, $cache_path . '/supercache/', $cache_path . '/blogs/', $blog_cache_dir, $blog_cache_dir . "/meta" );
	foreach( $directories as $dir ) {
		if ( false == is_dir( $dir ) )
			@mkdir( $dir );
		if ( is_dir( $dir ) && false == is_file( "$dir/index.html" ) ) {
			$fp = @fopen( "$dir/index.html", 'w' );
			if ( $fp )
				fclose( $fp );
		}
	}
}