The "work around" code snippet should of course look like this, not like 
previously posted:

	case IP_HDRINCL:
		if (*m == 0 || (*m)->m_len < sizeof (int))
			error = EINVAL;
		else {
			if (m->m_len == sizeof(int) &&
			    *mtod(*m, int *))
				inp->inp_flags |= INP_HDRINCL;
			else if (m->m_len == sizeof(long) &&
			    *mtod(*m, long *))
				inp->inp_flags |= INP_HDRINCL;
			else
				inp->inp_flags &= ~INP_HDRINCL;
		}


Regards,
-Markus

-- 
Markus Mayer
Redback Networks
An Ericsson Company