File::reaplath(): check for symlink

codemasher · codemasher · commit 72c639ab6170 · 2025-06-25T19:21:58.000+02:00
diff --git a/src/File.php b/src/File.php
@@ -67,6 +67,10 @@ public static function realpath(string $path):string{
 
 		if(is_link($path)){
 			$path = readlink($path);
+
+			if($path === false){
+				throw new InvalidArgumentException('invalid link');
+			}
 		}
 
 		$realpath = realpath($path);

Original file line number	Diff line number	Diff line change
`@@ -67,6 +67,10 @@ public static function realpath(string $path):string{`
`67`	`67`
`68`	`68`	`if(is_link($path)){`
`69`	`69`	`$path = readlink($path);`
	`70`	`+`
	`71`	`+ if($path === false){`
	`72`	`+ throw new InvalidArgumentException('invalid link');`
	`73`	`+ }`
`70`	`74`	`}`
`71`	`75`
`72`	`76`	`$realpath = realpath($path);`