Description:
------------
When using recode extension on amd64 system I've got two states

 - Crash (SIGSEGV)
 - zero-length string output

from recode_string function.

This problem is relevant only on 64bit systems. Here is a little patch which helps.

diff -ruN php5/ext/recode/recode.c php5-b/ext/recode/recode.c
--- php5/ext/recode/recode.c    2007-01-01 10:36:05.000000000 +0100
+++ php5-b/ext/recode/recode.c  2007-06-21 16:16:31.000000000 +0200
@@ -132,7 +132,7 @@
 {
        RECODE_REQUEST request = NULL;
        char *r = NULL;
-       int r_len = 0, r_alen = 0;
+       size_t r_len = 0, r_alen = 0;
        int req_len, str_len;
        char *req, *str;
 

I'm not a C programmer, so please review this patch and consequences It's going to have

Reproduce code:
---------------
<?php
  echo recode_string("utf-8..flat","aaaa");
?>

Expected result:
----------------
should return aaaa

Actual result:
--------------
instead returns zero length string or crashes with sigsegv