diff options
Diffstat (limited to 'nuttx/include/netinet/in.h')
| -rw-r--r-- | nuttx/include/netinet/in.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/nuttx/include/netinet/in.h b/nuttx/include/netinet/in.h index 565ffbeb1..219f15119 100644 --- a/nuttx/include/netinet/in.h +++ b/nuttx/include/netinet/in.h @@ -110,6 +110,28 @@ #define s6_addr16 in6_u.u6_addr16 #define s6_addr32 in6_u.u6_addr32 +/* Checks for special IPv6 addresses */ + +#define IN6_IS_ADDR_MULTICAST(a) \ + ((a)->s6_addr[0] == 0xff) + +#define IN6_IS_ADDR_LOOPBACK(a) \ + ((a)->s6_addr32[0] == 0 && \ + (a)->s6_addr32[1] == 0 && \ + (a)->s6_addr32[2] == 0 && \ + (a)->s6_addr32[3] == HTONL(1)) + +#define IN6_IS_ADDR_UNSPECIFIED(a) \ + ((a)->s6_addr32[0] == 0 && \ + (a)->s6_addr32[1] == 0 && \ + (a)->s6_addr32[2] == 0 && \ + (a)->s6_addr32[3] == 0) + +#define IN6_IS_ADDR_V4MAPPED(a) \ + ((a)->s6_addr32[0] == 0 && \ + (a)->s6_addr32[1] == 0 && \ + (a)->s6_addr32[2] == HTONL(0xffff)) + /**************************************************************************** * Public Type Definitions ****************************************************************************/ |