diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | string.c | 4 | ||||
| -rw-r--r-- | test/ruby/test_object.rb | 9 |
3 files changed, 17 insertions, 1 deletions
@@ -1,3 +1,8 @@ +Thu Dec 3 16:02:17 2015 Nobuyoshi Nakada <nobu@ruby-lang.org> + + * string.c (rb_obj_as_string): fstring should not be infected. + TODO: other frozen strings also may not be. + Thu Dec 3 15:39:21 2015 SHIBATA Hiroshi <hsbt@ruby-lang.org> * lib/scanf.rb: fixed double words typo. @@ -1247,7 +1247,9 @@ rb_obj_as_string(VALUE obj) str = rb_funcall(obj, idTo_s, 0); if (!RB_TYPE_P(str, T_STRING)) return rb_any_to_s(obj); - OBJ_INFECT(str, obj); + if (!FL_SET(str, RSTRING_FSTR) && FL_ABLE(obj)) + /* fstring must not be tainted, at least */ + OBJ_INFECT_RAW(str, obj); return str; } diff --git a/test/ruby/test_object.rb b/test/ruby/test_object.rb index a3c71d605c..27f3bd18ce 100644 --- a/test/ruby/test_object.rb +++ b/test/ruby/test_object.rb @@ -755,6 +755,15 @@ class TestObject < Test::Unit::TestCase end EOS assert_match(/\bToS\u{3042}:/, x) + + name = "X".freeze + x = Object.new.taint + class<<x;self;end.class_eval {define_method(:to_s) {name}} + assert_same(name, x.to_s) + assert_not_predicate(name, :tainted?) + assert_raise(RuntimeError) {name.taint} + assert_equal("X", [x].join("")) + assert_not_predicate(name, :tainted?) end def test_inspect |