diff options
Diffstat (limited to 'inet/netinet/in.h')
| -rw-r--r-- | inet/netinet/in.h | 72 |
1 files changed, 62 insertions, 10 deletions
diff --git a/inet/netinet/in.h b/inet/netinet/in.h index 180227a..2c2c184 100644 --- a/inet/netinet/in.h +++ b/inet/netinet/in.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1991-2001, 2003, 2004, 2006, 2007, 2008 +/* Copyright (C) 1991-2001, 2003, 2004, 2006, 2007, 2008, 2011 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -396,44 +396,96 @@ extern uint16_t htons (uint16_t __hostshort) # endif #endif -#define IN6_IS_ADDR_UNSPECIFIED(a) \ +#ifdef __GNUC__ +# define IN6_IS_ADDR_UNSPECIFIED(a) \ + (__extension__ \ + ({ __const struct in6_addr *__a = (__const struct in6_addr *) (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_LOOPBACK(a) \ + (__extension__ \ + ({ __const struct in6_addr *__a = (__const struct in6_addr *) (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_LINKLOCAL(a) \ + (__extension__ \ + ({ __const struct in6_addr *__a = (__const struct in6_addr *) (a); \ + (__a->s6_addr32[0] & htonl (0xffc00000)) == htonl (0xfe800000); })) + +# define IN6_IS_ADDR_SITELOCAL(a) \ + (__extension__ \ + ({ __const struct in6_addr *__a = (__const struct in6_addr *) (a); \ + (__a->s6_addr32[0] & htonl (0xffc00000)) == htonl (0xfec00000); })) + +# define IN6_IS_ADDR_V4MAPPED(a) \ + (__extension__ \ + ({ __const struct in6_addr *__a = (__const struct in6_addr *) (a); \ + __a->s6_addr32[0] == 0 \ + && __a->s6_addr32[1] == 0 \ + && __a->s6_addr32[2] == htonl (0xffff); })) + +# define IN6_IS_ADDR_V4COMPAT(a) \ + (__extension__ \ + ({ __const struct in6_addr *__a = (__const struct in6_addr *) (a); \ + __a->s6_addr32[0] == 0 \ + && __a->s6_addr32[1] == 0 \ + && __a->s6_addr32[2] == 0 \ + && ntohl (__a->s6_addr32[3]) > 1; })) + +# define IN6_ARE_ADDR_EQUAL(a,b) \ + (__extension__ \ + ({ __const struct in6_addr *__a = (__const struct in6_addr *) (a); \ + __const struct in6_addr *__b = (__const struct in6_addr *) (b); \ + __a->s6_addr32[0] == __b->s6_addr32[0] \ + && __a->s6_addr32[1] == __b->s6_addr32[1] \ + && __a->s6_addr32[2] == __b->s6_addr32[2] \ + && __a->s6_addr32[3] == __b->s6_addr32[3]; })) +#else +# define IN6_IS_ADDR_UNSPECIFIED(a) \ (((__const uint32_t *) (a))[0] == 0 \ && ((__const uint32_t *) (a))[1] == 0 \ && ((__const uint32_t *) (a))[2] == 0 \ && ((__const uint32_t *) (a))[3] == 0) -#define IN6_IS_ADDR_LOOPBACK(a) \ +# define IN6_IS_ADDR_LOOPBACK(a) \ (((__const uint32_t *) (a))[0] == 0 \ && ((__const uint32_t *) (a))[1] == 0 \ && ((__const uint32_t *) (a))[2] == 0 \ && ((__const uint32_t *) (a))[3] == htonl (1)) -#define IN6_IS_ADDR_MULTICAST(a) (((__const uint8_t *) (a))[0] == 0xff) - -#define IN6_IS_ADDR_LINKLOCAL(a) \ +# define IN6_IS_ADDR_LINKLOCAL(a) \ ((((__const uint32_t *) (a))[0] & htonl (0xffc00000)) \ == htonl (0xfe800000)) -#define IN6_IS_ADDR_SITELOCAL(a) \ +# define IN6_IS_ADDR_SITELOCAL(a) \ ((((__const uint32_t *) (a))[0] & htonl (0xffc00000)) \ == htonl (0xfec00000)) -#define IN6_IS_ADDR_V4MAPPED(a) \ +# define IN6_IS_ADDR_V4MAPPED(a) \ ((((__const uint32_t *) (a))[0] == 0) \ && (((__const uint32_t *) (a))[1] == 0) \ && (((__const uint32_t *) (a))[2] == htonl (0xffff))) -#define IN6_IS_ADDR_V4COMPAT(a) \ +# define IN6_IS_ADDR_V4COMPAT(a) \ ((((__const uint32_t *) (a))[0] == 0) \ && (((__const uint32_t *) (a))[1] == 0) \ && (((__const uint32_t *) (a))[2] == 0) \ && (ntohl (((__const uint32_t *) (a))[3]) > 1)) -#define IN6_ARE_ADDR_EQUAL(a,b) \ +# define IN6_ARE_ADDR_EQUAL(a,b) \ ((((__const uint32_t *) (a))[0] == ((__const uint32_t *) (b))[0]) \ && (((__const uint32_t *) (a))[1] == ((__const uint32_t *) (b))[1]) \ && (((__const uint32_t *) (a))[2] == ((__const uint32_t *) (b))[2]) \ && (((__const uint32_t *) (a))[3] == ((__const uint32_t *) (b))[3])) +#endif + +#define IN6_IS_ADDR_MULTICAST(a) (((__const uint8_t *) (a))[0] == 0xff) #if defined __USE_MISC || defined __USE_GNU /* Bind socket to a privileged IP port. */ |