* struct.c (rb_struct_s_members): check if __members__ is an

  array to prevent segmentation fault.  [ruby-dev:31759]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13410 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 0 deletions

diff --git a/struct.c b/struct.c
index f87b33b050..671788fc10 100644
--- a/struct.c
+++ b/struct.c
@@ -39,6 +39,9 @@ rb_struct_s_members(VALUE klass)
     if (NIL_P(members)) {
 	rb_raise(rb_eTypeError, "uninitialized struct");
     }
+    if (TYPE(members) != T_ARRAY) {
+	rb_raise(rb_eTypeError, "corrupted struct");
+    }
     return members;
 }