* transcode.c (rb_econv_substr_append): fix for buffer overrun.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@18831 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,7 +1,9 @@
-Mon Aug 25 17:34:10 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Aug 25 17:35:23 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* transcode.c (rb_econv_substr_append): fix for buffer overrun.
 
+	* win32/enc-setup.mak (BUILTIN_TRANSOBJS): added.
+
 Mon Aug 25 14:22:21 2008  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
 
 	* parse.y (YYSTYPE): struct RVarmap has been no longer 

transcode.c

@@ -1360,8 +1360,9 @@ rb_econv_substr_append(rb_econv_t *ec, VALUE src, long off, long len, VALUE dst,
         }
         ss = sp = (const unsigned char *)RSTRING_PTR(src) + off;
         se = ss + len;
-        ds = dp = (unsigned char *)RSTRING_PTR(dst) + dlen;
+        ds = (unsigned char *)RSTRING_PTR(dst);
         de = ds + rb_str_capacity(dst);
+        dp = ds += dlen;
         res = rb_econv_convert(ec, &sp, se, &dp, de, flags);
         off += sp - ss;
         len -= sp - ss;