Edit report at http://bugs.php.net/bug.php?id=50954&edit=1

 ID:          50954
 Comment by:  softex at kaliningrad dot ru
 Reported by: hiroaki dot kawai at gmail dot com
 Summary:     iconv_mime_encode fails in Q-encoding
 Status:      Bogus
 Type:        Bug
 Package:     ICONV related
 PHP Version: 5.2.12

 New Comment:

This function does not work in Base64 mode too using utf-8 charset.


Previous Comments:
------------------------------------------------------------------------
[2010-04-29 20:58:39] softex at kaliningrad dot ru

I have the same problem using non-ascii characters in second argument of
the function. 



When to expect this patch to be included in new release?

------------------------------------------------------------------------
[2010-02-08 00:22:34] hiroaki dot kawai at gmail dot com

I'm not sure this is a dup of #48289 because I could not reproduce the 

test case. So I created a separete report. If you are sure this is a dup


of #48289, please mark this as "Duplicate" not "Bogus". Bogus means "the


report was not a bug at last".

------------------------------------------------------------------------
[2010-02-07 17:37:26] j...@php.net

Please do not submit the same bug more than once. An existing
bug report already describes this very problem. Even if you feel
that your issue is somewhat different, the resolution is likely
to be the same. 

Thank you for your interest in PHP.

See bug #48289

------------------------------------------------------------------------
[2010-02-07 14:15:50] hiroaki dot kawai at gmail dot com

Description:
------------
iconv_mime_encode fails Q-encoding when encoding non-ascii chars, 

which case is very common. This problem does not happen if line-length 

is long enough to hold the encoded string in a single line. 



The code use unsigned int to capture expected byte. In Q-encoding, the 

value is goes to negative value (at iconv.c line 1295), and fails 

separating the value into multiple lines.



Patch as following:

===============================

--- iconv.c.orig        2008-12-31 20:17:49.000000000 +0900

+++ iconv.c     2010-02-07 11:01:54.436000000 +0900

@@ -1217,7 +1217,7 @@

                                prev_in_left = ini_in_left = in_left;

                                ini_in_p = in_p;

 

-                               for (out_size = char_cnt; out_size > 

0;) {

+                               for (out_size = (char_cnt-2)/3; 

out_size > 0;) {

                                        size_t prev_out_left;

 

                                        nbytes_required = 0;



Reproduce code:
---------------
<?php

ini_set('error_reporting',E_ALL);

echo
iconv_mime_encode('a',"\xE3\x83\x86\xE3\x82\xB9\xE3\x83\x88\xE3\x83\x86\xE3\x82\xB9\xE3\x83\x88",array('output-charset'=>'UTF-8','input-charset'=>'UTF-8','scheme'=>'Q','line-length'=>30));



Expected result:
----------------
a: =?UTF-8?Q?=E3=83=86?=

 =?UTF-8?Q?=E3=82=B9?=

 =?UTF-8?Q?=E3=83=88?=

 =?UTF-8?Q?=E3=83=86?=

 =?UTF-8?Q?=E3=82=B9?=

 =?UTF-8?Q?=E3=83=88?=

Actual result:
--------------
Notice: iconv_mime_encode(): Unknown error (7) in /home/hawk/hoge.php on


line 3


------------------------------------------------------------------------



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