* transcode.c (transcode_search_path): prevent infinite loop by

searching a path for self conversion.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@18687 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Mon Aug 18 13:21:38 2008  Tanaka Akira  <akr@fsij.org>
+
+	* transcode.c (transcode_search_path): prevent infinite loop by
+	  searching a path for self conversion.
+
 Mon Aug 18 12:45:24 2008  Tanaka Akira  <akr@fsij.org>
 
 	* io.c (io_enc_str): code conversion removed.

transcode.c

@@ -165,6 +165,9 @@ transcode_search_path(const char *from, const char *to,
     int found;
     int pathlen;
 
+    if (encoding_equal(from, to))
+        return -1;
+
     q = ALLOC(search_path_queue_t);
     q->enc = from;
     q->next = NULL;