36 #define IN6_IS_ADDR_UNSPECIFIED(a) \  argument
37   ((((a)->s6_addr32[0]) == 0) && \
38    (((a)->s6_addr32[1]) == 0) && \
39    (((a)->s6_addr32[2]) == 0) && \
40    (((a)->s6_addr32[3]) == 0))
42 #define IN6_IS_ADDR_LOOPBACK(a) \  argument
43   ((((a)->s6_addr32[0]) == 0) && \
44    (((a)->s6_addr32[1]) == 0) && \
45    (((a)->s6_addr32[2]) == 0) && \
46    (((a)->s6_addr32[3]) == ntohl(1)))
48 #define IN6_IS_ADDR_V4COMPAT(a) \  argument
49   ((((a)->s6_addr32[0]) == 0) && \
50    (((a)->s6_addr32[1]) == 0) && \
51    (((a)->s6_addr32[2]) == 0) && \
52    (((a)->s6_addr32[3]) != 0) && (((a)->s6_addr32[3]) != ntohl(1)))
54 #define IN6_IS_ADDR_V4MAPPED(a) \  argument
55   ((((a)->s6_addr32[0]) == 0) && \
56    (((a)->s6_addr32[1]) == 0) && \
57    (((a)->s6_addr32[2]) == ntohl(0x0000ffff)))
59 #define __bionic_s6_addr(a) __BIONIC_CAST(reinterpret_cast, const uint8_t*, a)  argument
61 #define IN6_IS_ADDR_LINKLOCAL(a) \  argument
62   ((__bionic_s6_addr(a)[0] == 0xfe) && ((__bionic_s6_addr(a)[1] & 0xc0) == 0x80))
64 #define IN6_IS_ADDR_SITELOCAL(a) \  argument
65   ((__bionic_s6_addr(a)[0] == 0xfe) && ((__bionic_s6_addr(a)[1] & 0xc0) == 0xc0))
67 #define IN6_IS_ADDR_MULTICAST(a) (__bionic_s6_addr(a)[0] == 0xff)  argument
69 #define IN6_IS_ADDR_ULA(a) ((__bionic_s6_addr(a)[0] & 0xfe) == 0xfc)  argument
78 #define IPV6_ADDR_MC_SCOPE(a) (__bionic_s6_addr(a)[1] & 0x0f)  argument
80 #define IN6_IS_ADDR_MC_NODELOCAL(a) \  argument
81   (IN6_IS_ADDR_MULTICAST(a) && (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL))
82 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \  argument
83   (IN6_IS_ADDR_MULTICAST(a) && (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
84 #define IN6_IS_ADDR_MC_SITELOCAL(a) \  argument
85   (IN6_IS_ADDR_MULTICAST(a) && (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))
86 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \  argument
87   (IN6_IS_ADDR_MULTICAST(a) && (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))
88 #define IN6_IS_ADDR_MC_GLOBAL(a) \  argument
89   (IN6_IS_ADDR_MULTICAST(a) && (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL))
91 #define IN6_ARE_ADDR_EQUAL(a, b) \  argument
92   (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)