Bug #48147 [NoF->Asn]: iconv with //IGNORE cuts the string

Edit report at https://bugs.php.net/bug.php?id=48147&edit=1 ID: 48147 Updated by: stas@php.net Reported by: kulakov74 at yandex dot ru Summary: iconv with //IGNORE cuts the string -Status: No Feedback +Status: Assigned Type: Bug Package: ICONV related Operating System: Linux PHP Version: 5.*, 6CVS (2009-05-05) Assigned To: stas Block user comment: N Private report: N Previous Comments: ------------------------------------------------------------------------ [2013-02-18 00:33:57] php-bugs at lists dot php dot net No feedback was provided. The bug is being suspended because we assume that you are no longer experiencing the problem. If this is not the case and you are able to provide the information that was requested earlier, please do so and change the status of the bug back to "Open". Thank you. ------------------------------------------------------------------------ [2012-10-27 09:26:12] ezyang@php.net I submitted an updated bug to glibc, which correctly describes the incorrect behavior in glibc http://sourceware.org/bugzilla/show_bug.cgi?id=13541 The facts of the matter are as follows: 1) glibc has inconsistent behavior about what the EILSEQ error code is supposed to mean, between its documentation and its behavior 2) glibc and libiconv have different behavior 3) A user of PHP who would like to use iconv to convert between two character sets while ignoring malformed characters *cannot do so* with the most recent versions of PHP (5.4+). (Trust me, I've tried.) In old versions of PHP, this functionality was available. Thus, this bug is a regression. If you want to blame upstream, that's fine by me, but I'm not optimistic on glibc getting updated any time in the near future, and there is a well understood (and implemented elsewhere) fix which gives us the correct behavior. ------------------------------------------------------------------------ [2012-01-08 12:33:12] pajoye@php.net To me it looks like there is no bug (as stated in the redhat issues). Also even if there was one, it would not be a PHP bug but iconv's. Or do you have any information that shows that PHP is causing this problem here? ------------------------------------------------------------------------ [2011-12-23 00:49:31] ezyang@php.net I think I understand how to fix this bug, without modifying glibc. We need to modify our invocation of iconv in order to mirror the behavior of iconv_prog.c:process_block() when the '-c' flag is set (if we mimic the code closely enough, we also get an extra bonus of sensible block processing behavior, which is better than the horrible over-allocation iconv does right now). In particular, we need to handle the EILSEQ error code correctly. ------------------------------------------------------------------------ [2011-12-18 22:34:38] ezyang@php.net Upstream bugs: http://sources.redhat.com/bugzilla/show_bug.cgi?id=13517 http://sources.redhat.com/bugzilla/show_bug.cgi?id=13518 ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=48147 -- Edit this bug report at https://bugs.php.net/bug.php?id=48147&edit=1