From 36f6ce40832a8c19301898ff20c370d5d4638923 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 15 Mar 2012 06:03:02 +0000
Subject: [PATCH] * file.c (ruby_enc_find_basename): allow NULL as alllen.  
 [ruby-dev:45363][Bug #6146]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35033 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog | 5 +++++
 file.c    | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 2fae9ad137..ad940f3313 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Mar 15 15:02:58 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (ruby_enc_find_basename): allow NULL as alllen.
+	  [ruby-dev:45363][Bug #6146]
+
 Thu Mar 15 14:49:31 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* string.c (rb_str_conv_enc_opts): default to original encoding.
diff --git a/file.c b/file.c
index 1869a29c3b..49032957d0 100644
--- a/file.c
+++ b/file.c
@@ -3563,7 +3563,7 @@ ruby_enc_find_basename(const char *name, long *baselen, long *alllen, rb_encodin
 #endif
     long f = 0, n = -1;
 
-    end = name + *alllen;
+    end = name + (alllen ? (size_t)*alllen : strlen(name));
     name = skipprefix(name, end, enc);
 #if defined DOSISH_DRIVE_LETTER || defined DOSISH_UNC
     root = name;