From 8148b7013c1b08df4fb7bd87bfc699f1f929e540 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 2 Oct 2017 06:46:42 +0000
Subject: io.c: check null char

* io.c (ruby_set_inplace_mode): check if null is contained.  based
  on the patch by tommy (Masahiro Tomita) in [ruby-dev:50272].
  [Bug #13960]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60097 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_argf.rb | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'test/ruby/test_argf.rb')

diff --git a/test/ruby/test_argf.rb b/test/ruby/test_argf.rb
index bc5c67d0d8..a112cf3e84 100644
--- a/test/ruby/test_argf.rb
+++ b/test/ruby/test_argf.rb
@@ -310,6 +310,12 @@ class TestArgf < Test::Unit::TestCase
     };
   end
 
+  def test_inplace_invalid_backup
+    assert_raise(ArgumentError, '[ruby-dev:50272] [Bug #13960]') {
+      ARGF.inplace_mode = "a\0"
+    }
+  end
+
   def test_encoding
     ruby('-e', "#{<<~"{#"}\n#{<<~'};'}", @t1.path, @t2.path, @t3.path) do |f|
       {#
-- 
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