S6_addr32
m32[0] = ip6addr.S6_addr32[0]; \
m32[1] = ip6addr.S6_addr32[1]; \
m32[2] = ip6addr.S6_addr32[2]; \
m32[3] = ip6addr.S6_addr32[3]; \
m32[0] = ip6addr.S6_addr32[0]; \
m32[1] = ip6addr.S6_addr32[1]; \
m32[2] = ip6addr.S6_addr32[2]; \
m32[3] = ip6addr.S6_addr32[3]; \
ip6addr.S6_addr32[0] = m32[0]; \
ip6addr.S6_addr32[1] = m32[1]; \
ip6addr.S6_addr32[2] = m32[2]; \
ip6addr.S6_addr32[3] = m32[3]; \