* io.c (rb_io_s_binread): offset argument was wrongly passed to

internal IO#read call.  [ruby-core:18810]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19507 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Wed Sep 24 11:18:33 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* io.c (rb_io_s_binread): offset argument was wrongly passed to
+	  internal IO#read call.  [ruby-core:18810]
+
 Wed Sep 24 07:38:23 2008  URABE Shyouhei  <shyouhei@ruby-lang.org>
 
 	* vm_core.h: ruby/ruby.h should be included at the very first

io.c

@@ -7006,7 +7006,7 @@ rb_io_s_binread(int argc, VALUE *argv, VALUE io)
     arg.io = rb_io_open(argv[0], rb_str_new_cstr("rb:ASCII-8BIT"), Qnil, Qnil);
     if (NIL_P(arg.io)) return Qnil;
     arg.argv = argv+1;
-    arg.argc = (argc > 2) ? 2 : argc;
+    arg.argc = (argc > 1) ? 1 : 0;
     if (!NIL_P(offset)) {
 	rb_io_seek(arg.io, offset, SEEK_SET);
     }