itojun db45a6f189 icmp_reflect: check if m_pkthdr.rcvif is non-NULL before touching it.
icmp_reflect could be called from the output path, so m_pkthdr.rcvif may not
be set.  (found by panic when PF is configured "block return all")
2004-06-25 15:43:00 +00:00
..
2004-06-24 15:06:35 +00:00