Instead of always trying the same order of ports when
looking for an unused port, randomize the order (naively).
As libnl-1 uses the same function, it is likely that two applications
that are using both libraries generate the same ports. By chosing a
different order how to select the local port, the chances are smaller
for this to happen (however, it cannot avoid it entirely. The user
and/or libnl3 still has to cope with the situation, that somebody
else might already use the port).
Signed-off-by: Thomas Haller <thaller@redhat.com>
1f734a8f89