- Change the last argument type of natpt_composeIPv[46]Hdr().   It is convenient that this argument is a 'struct ip(ip6_hdr) *'   instead of 'struct pcv *'.
- Change the last argument type of natpt_composeIPv[46]Hdr().
  It is convenient that this argument is a 'struct ip(ip6_hdr) *'
  instead of 'struct pcv *'.

MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame