io/console: unknown key code for names with nul

* ext/io/console/console.c (console_key_pressed_p): raise the same
  exception, "unknown virtual key code", for names with nul chars.
  though console_win32_vk() considers the length and can deal with
  nul chars, rb_sprintf() raised at PRIsVALUE previously, so quote
  it if it is unprintable.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54589 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,11 @@
+Fri Apr 15 10:07:11 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* ext/io/console/console.c (console_key_pressed_p): raise the same
+	  exception, "unknown virtual key code", for names with nul chars.
+	  though console_win32_vk() considers the length and can deal with
+	  nul chars, rb_sprintf() raised at PRIsVALUE previously, so quote
+	  it if it is unprintable.
+
 Fri Apr 15 09:02:58 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* ext/io/console/console.c (rb_sym2str): fallback definition for

ext/io/console/console.c

@@ -731,11 +731,14 @@ console_key_pressed_p(VALUE io, VALUE k)
 	const char *kn;
 	if (SYMBOL_P(k)) {
 	    k = rb_sym2str(k);
+	    kn = RSTRING_PTR(k);
+	}
+	else {
+	    kn = StringValuePtr(k);
 	}
-	kn = StringValueCStr(k);
 	t = console_win32_vk(kn, RSTRING_LEN(k));
 	if (!t || (vk = (short)t->vk) == -1) {
-	    rb_raise(rb_eArgError, "unknown virtual key code: %"PRIsVALUE, k);
+	    rb_raise(rb_eArgError, "unknown virtual key code: % "PRIsVALUE, k);
 	}
     }
     return GetKeyState(vk) & 0x80 ? Qtrue : Qfalse;

test/io/console/test_io_console.rb

@@ -340,6 +340,21 @@ defined?(IO.console) and TestIO_Console.class_eval do
   end
 end
 
+defined?(IO.console) and IO.console and IO.console.respond_to?(:pressed?) and
+  TestIO_Console.class_eval do
+  def test_pressed_valid
+    assert_include([true, false], IO.console.pressed?("HOME"))
+    assert_include([true, false], IO.console.pressed?(:"HOME"))
+  end
+
+  def test_pressed_invalid
+    e = assert_raise(ArgumentError) do
+      IO.console.pressed?("HOME\0")
+    end
+    assert_match(/unknown virtual key code/, e.message)
+  end
+end
+
 TestIO_Console.class_eval do
   def test_stringio_getch
     assert_separately %w"--disable=gems -rstringio -rio/console", %q{