IPV6_VERS_AND_FLOW_MASK
sin6.sin6_flowinfo = ip6h->ip6_vcf & ~IPV6_VERS_AND_FLOW_MASK;
(IPV6_DEFAULT_VERS_AND_FLOW & IPV6_VERS_AND_FLOW_MASK) |
(flowinfo & ~IPV6_VERS_AND_FLOW_MASK);
(IPV6_DEFAULT_VERS_AND_FLOW & IPV6_VERS_AND_FLOW_MASK) |
(flowinfo & ~IPV6_VERS_AND_FLOW_MASK);
if ((ip6h->ip6_vcf & IPV6_VERS_AND_FLOW_MASK) !=
sin6->sin6_flowinfo & ~IPV6_VERS_AND_FLOW_MASK;
sin6.sin6_flowinfo = ip6h->ip6_vcf & ~IPV6_VERS_AND_FLOW_MASK;
sin6.sin6_flowinfo = ip6h->ip6_vcf & ~IPV6_VERS_AND_FLOW_MASK;
sin6.sin6_flowinfo = ip6h->ip6_vcf & ~IPV6_VERS_AND_FLOW_MASK;
(IPV6_DEFAULT_VERS_AND_FLOW & IPV6_VERS_AND_FLOW_MASK) |
(flowinfo & ~IPV6_VERS_AND_FLOW_MASK);