diff -r 490d5cc509ed -r cf61fcea0001 wp/wp-admin/includes/class-ftp.php
--- a/wp/wp-admin/includes/class-ftp.php	Tue Jun 09 11:14:17 2015 +0000
+++ b/wp/wp-admin/includes/class-ftp.php	Mon Oct 14 17:39:30 2019 +0200
@@ -121,10 +121,6 @@
 	var $AutoAsciiExt;
 
 	/* Constructor */
-	function ftp_base($port_mode=FALSE) {
-		$this->__construct($port_mode);
-	}
-
 	function __construct($port_mode=FALSE, $verb=FALSE, $le=FALSE) {
 		$this->LocalEcho=$le;
 		$this->Verbose=$verb;
@@ -157,6 +153,10 @@
 		elseif(strtoupper(substr(PHP_OS, 0, 3)) === 'MAC') $this->OS_local=FTP_OS_Mac;
 	}
 
+	function ftp_base($port_mode=FALSE) {
+		$this->__construct($port_mode);
+	}
+
 // <!-- --------------------------------------------------------------------------------------- -->
 // <!--       Public functions                                                                  -->
 // <!-- --------------------------------------------------------------------------------------- -->
@@ -380,7 +380,7 @@
 	function pwd() {
 		if(!$this->_exec("PWD", "pwd")) return FALSE;
 		if(!$this->_checkCode()) return FALSE;
-		return ereg_replace("^[0-9]{3} \"(.+)\".+", "\\1", $this->_message);
+		return preg_replace("/^[0-9]{3} \"(.+)\".*$/s", "\\1", $this->_message);
 	}
 
 	function cdup() {
@@ -424,7 +424,7 @@
 		}
 		if(!$this->_exec("SIZE ".$pathname, "filesize")) return FALSE;
 		if(!$this->_checkCode()) return FALSE;
-		return ereg_replace("^[0-9]{3} ([0-9]+)".CRLF, "\\1", $this->_message);
+		return preg_replace("/^[0-9]{3} ([0-9]+).*$/s", "\\1", $this->_message);
 	}
 
 	function abort() {
@@ -444,7 +444,7 @@
 		}
 		if(!$this->_exec("MDTM ".$pathname, "mdtm")) return FALSE;
 		if(!$this->_checkCode()) return FALSE;
-		$mdtm = ereg_replace("^[0-9]{3} ([0-9]+)".CRLF, "\\1", $this->_message);
+		$mdtm = preg_replace("/^[0-9]{3} ([0-9]+).*$/s", "\\1", $this->_message);
 		$date = sscanf($mdtm, "%4d%2d%2d%2d%2d%2d");
 		$timestamp = mktime($date[3], $date[4], $date[5], $date[1], $date[2], $date[0]);
 		return $timestamp;
@@ -694,7 +694,7 @@
 		}
 		foreach($list as $k=>$v) {
 			$list[$k]=$this->parselisting($v);
-			if($list[$k]["name"]=="." or $list[$k]["name"]=="..") unset($list[$k]);
+			if( ! $list[$k] or $list[$k]["name"]=="." or $list[$k]["name"]=="..") unset($list[$k]);
 		}
 		$ret=true;
 		foreach($list as $el) {
@@ -727,7 +727,7 @@
 
 		foreach($list as $k=>$v) {
 			$list[$k]=$this->parselisting($v);
-			if($list[$k]["name"]=="." or $list[$k]["name"]=="..") unset($list[$k]);
+			if( ! $list[$k] or $list[$k]["name"]=="." or $list[$k]["name"]=="..") unset($list[$k]);
 		}
 		$ret=true;
 
@@ -818,8 +818,8 @@
 	function glob_regexp($pattern,$probe) {
 		$sensitive=(PHP_OS!='WIN32');
 		return ($sensitive?
-			ereg($pattern,$probe):
-			eregi($pattern,$probe)
+			preg_match( '/' . preg_quote( $pattern, '/' ) . '/', $probe ) :
+			preg_match( '/' . preg_quote( $pattern, '/' ) . '/i', $probe )
 		);
 	}
 
@@ -904,3 +904,9 @@
 }
 
 require_once dirname( __FILE__ ) . "/class-ftp-" . ( $mod_sockets ? "sockets" : "pure" ) . ".php";
+
+if ( $mod_sockets ) {
+	class ftp extends ftp_sockets {}
+} else {
+	class ftp extends ftp_pure {}
+}