Valgrind is reporting uninitialised bytes at the pointer returned by nfq_open().
libnetfilter_queue version 1.1.0.
/* initialize the netfilter queue */
if (( _queue.nfq_h = nfq_open()) == NULL ) return perrlog( "nfq_open" );
/* Unbind any existing queue handlers */
/* In > 2.6.22, EINVAL is returned if the queue handler isn't register. So
we just ignore it. */
if ( nfq_unbind_pf( _queue.nfq_h, PF_INET ) < 0 && errno != EINVAL ) return perrlog( "nfq_unbind_pf" );
==20443== Syscall param ! points to uninitialised byte(s)
==20443== at 0x4030B4E: sendmsg (in /lib/tls/libpthread-0.60.so)
==20443== by 0x28659EF4: (within /usr/lib/libnetfilter_queue.so.1.1.0)
==20443== by 0x2865A167: nfq_unbind_pf (in /usr/lib/libnetfilter_queue.so.1.1.0)
/* Bind queue */
if ( nfq_bind_pf( _queue.nfq_h, PF_INET ) < 0 ) return perrlog( "nfq_bind_pf" );
==20443== Syscall param ! points to uninitialised byte(s)
==20443== at 0x4030B4E: sendmsg (in /lib/tls/libpthread-0.60.so)
==20443== by 0x28659EF4: (within /usr/lib/libnetfilter_queue.so.1.1.0)
==20443== by 0x2865A1FA: nfq_create_queue (in /usr/lib/libnetfilter_queue.so.1.1.0)
/* Bind the socket to a queue */
if (( _queue.nfq_qh = nfq_create_queue( _queue.nfq_h, 0, &_nf_callback, NULL )) == NULL ) {
return perrlog( "nfq_create_queue" );
}
....
/* Cleanup */
/* close the queue handler */
if (( _queue.nfq_qh != NULL ) && ( nfq_destroy_queue( _queue.nfq_qh ) < 0 )) {
perrlog( "nfq_destroy_queue" );
}
==20443== Syscall param <DD><DD><DD><DD><DD><DD><DD><DD><DD><DD><DD><DD><DD><DD>
<DD><DD><DD><DD><DD><DD><DD><DD><DD><DD><DD><DD><DD><DD><DD><DD><DD><DD><DD><DD>
<DD><DD><DD><DD><DD><DD> points to uninitialised byte(s)
==20443== at 0x4030B4E: sendmsg (in /lib/tls/libpthread-0.60.so)
==20443== by 0x28659EF4: (within /usr/lib/libnetfilter_queue.so.1.1.0)
==20443== by 0x2865A26E: nfq_destroy_queue (in /usr/lib/libnetfilter_queue.so
.1.1.0)
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