Changed source root directory

html/wp-content/plugins/post-smtp/freemius/includes/supplements/fs-essential-functions-1.1.7.1.php

@@ -0,0 +1,43 @@
+<?php
+	/**
+	 * @package     Freemius
+	 * @copyright   Copyright (c) 2015, Freemius, Inc.
+	 * @license     https://www.gnu.org/licenses/gpl-3.0.html GNU General Public License Version 3
+	 * @since       1.1.7
+	 */
+
+	if ( ! defined( 'ABSPATH' ) ) {
+		exit;
+	}
+
+	/**
+	 * Find the plugin main file path based on any given file inside the plugin's folder.
+	 *
+	 * @author Vova Feldman (@svovaf)
+	 * @since  1.1.7.1
+	 *
+	 * @param string $file Absolute path to a file inside a plugin's folder.
+	 *
+	 * @return string
+	 */
+	function fs_find_direct_caller_plugin_file( $file ) {
+		/**
+		 * All the code below will be executed once on activation.
+		 * If the user changes the main plugin's file name, the file_exists()
+		 * will catch it.
+		 */
+		$all_plugins = fs_get_plugins( true );
+
+		$file_real_path = fs_normalize_path( realpath( $file ) );
+
+		// Get active plugin's main files real full names (might be symlinks).
+		foreach ( $all_plugins as $relative_path => $data ) {
+            if ( 0 === strpos( $file_real_path, fs_normalize_path( dirname( realpath( WP_PLUGIN_DIR . '/' . $relative_path ) ) . '/' ) ) ) {
+				if ( '.' !== dirname( trailingslashit( $relative_path ) ) ) {
+	                return $relative_path;
+	            }
+			}
+		}
+
+		return null;
+	}