#50954 [Bgs]: iconv_mime_encode fails in Q-encoding
ID: 50954
User updated by: hiroaki dot kawai at gmail dot com
Reported By: hiroaki dot kawai at gmail dot com
Status: Bogus
Bug Type: ICONV related
PHP Version: 5.2.12
New Comment:
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".
Previous Comments:
------------------------------------------------------------------------
[2010-02-07 17:37:26] jani@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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Thread (9 messages)