SSH2 Upgrade transport: Use ssh2_sftp_realpath() instead of shell commands to determine the current directory on the remote server. This should allow it to be used on chrooted SSH sessions.

See #32345


git-svn-id: https://develop.svn.wordpress.org/trunk@32726 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/includes/class-wp-filesystem-ssh2.php

@@ -193,7 +193,7 @@ class WP_Filesystem_SSH2 extends WP_Filesystem_Base {
 	 * @return bool
 	 */
 	public function cwd() {
-		$cwd = $this->run_command('pwd');
+		$cwd = ssh2_sftp_realpath( $this->sftp_link, '.' );
 		if ( $cwd ) {
 			$cwd = trailingslashit( trim( $cwd ) );
 		}