[PATCH] Fix resource leak in resolver (bug 19257)

[Florian Weimer]

On 02/09/2016 02:00 PM, Andreas Schwab wrote:
> Florian Weimer <fweimer@redhat.com> writes:
> 
>> On 02/09/2016 12:40 PM, Andreas Schwab wrote:
>>> The number of currently defined nameservers is stored in ->nscount,
>>> whereas ->_u._ext.nscount is set by __libc_res_nsend only after local
>>> initializations.
>>
>> Is it possible to test this without a chroot?
> 
> I don't know how.  You need at least one IPv6 nameserver in
> /etc/resolv.conf to trigger the leak.

I tried static linking to override _IO_new_fopen, but I get this:

/home/fweimer/src/gnu/glibc/build/libc.a(iofopen.o): In function
`_IO_new_fopen':
/home/fweimer/src/gnu/glibc/git/libio/iofopen.c:97: multiple definition
of `_IO_new_fopen'
t.o:/tmp/t.c:14: first defined here

Any other ideas?

Thanks,
Florian