[PATCH] __gconv_translit_find: Actually append ".so" to module name [BZ #17187]

[Florian Weimer]

On 07/29/2014 01:02 AM, Roland McGrath wrote:
> The fix itself looks fine.  It should certainly have a test first if at all
> possible, though.

This entire functionality has been crippled from the beginning, it seems:

    <https://www.sourceware.org/ml/libc-alpha/2005-12/msg00091.html>

I couldn't find anything which defines a gconv_trans_context symbol, not 
within glibc, and neither as a third-party module.

Consequently, the attached patch removes gconv transliteration modules, 
changing the gconv ABI along the way.  Some gconv conversion modules now 
call __gconv_transliterate directly, and not through a function pointer 
obtained through internal gconv data structures.  There's a hidden alias 
for a PLT-less call from the internal gconv modules.

The previous patch is considerably less invasive and better for 
backporting.  You might also want to throw a wrench into open_translit 
in iconv/gconv_trans.c to prevent it from attempting to load any 
modules, just to be on the safe side.

-- 
Florian Weimer / Red Hat Product Security

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