* file.c (rb_find_file_ext_safe, rb_find_file_safe): ditto.

* safe.c (rb_insecure_operation): function to raise security error.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@23831 b2dd03c8-39d4-4d8f-98ff-823fe69b080e