silly error messages

Add getmask() to aftype structure to generalize.

Fix numerous buffer overruns. net-tools is full of them!
[still many left]

address on the HIPPI NIC's network should be type HIPPI and not Ether.

Fix buffer overflow in route [there are probably more in the nettools]

Allow device argument everywhere on the command line, but only when
it starts with the keyword.

them.

this makes txqueuelen work again, because the code in interface.c was always
omitted.

Fix a few bad typos.
Fix a few warnings.
Change all #ifdef HAVE_... to #if HAVE_... because the config script
uses #define .. 0 for disabled options instead of #undef.
Make atalk functional again (not tested).

weekend - please give it a go and make sure it at least compiles
on your system. :-)

implemented for IPv6, since this is no longer the case.

 - ROSE and FDDI support is in now
 - `route' ignores routes that are deleted, to avoid confusing users.
 - `ifconfig' no longer even tries to use SIOCGIFCOUNT.  Even old ifconfigs
   will work correctly without it though, so let's delete this ioctl now
   before 2.2 is released.  It was only added in the mid 2.1 series so no code
   should rely on it yet.

Also the usual round of tidying up.

I need to check whether Bernd has any outstanding changes, and then I want
to release net-tools 1.50 in the fairly near future.

Some libc5 fixes.

Note that it isn't tested yet, because I still don't have a kernel
with a working SIOCGIFFTXQLEN.