Handle NULs in link targets in Pathname#resolved_path_exists?

Fixes Homebrew/homebrew#19475. Fixes Homebrew/homebrew#21184.
2013-07-13 16:38:30 -05:00 · 2013-07-13 16:38:30 -05:00 · 528e750f7b
commit 528e750f7b
parent 7964aa6648
1 changed files with 6 additions and 1 deletions
--- a/Library/Homebrew/extend/pathname.rb
+++ b/Library/Homebrew/extend/pathname.rb
@ -253,7 +253,12 @@ class Pathname
  end

  def resolved_path_exists?
-    (dirname+readlink).exist?
+    link = readlink
+  rescue ArgumentError
+    # The link target contains NUL bytes
+    false
+  else
+    (dirname+link).exist?
  end

  # perhaps confusingly, this Pathname object becomes the symlink pointing to