pump-0.7.2 contains netconfig (the interactive network setup program),
and when it takes the machine's hostname to do a reverse DNS lookup,
it dumps core if the name is not found.

The problem is in "net.c" near line 464:

    int findHostAndDomain(...)
    {
       ....
    #ifdef __STANDALONE__
       he = gethostbyaddr( (char *)&dev->dev.ip, sizeof....);
       name = he->h_name; /* BUG BUG BUG */
    #else
       name = mygethostbyaddr(inet_ntoa(dev->dev.ip));
    #endif

The bug-marked line dereferences "he" even if it's a NULL, and this
causes a core dump. This line should instead be:

       name = he ? he->h_name : 0;

so that (a) we don't dereference "he" unless it's valid, and
(b) the "name" variable is always initialized with *something*.