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-rw-r--r--inet/netinet/in.h72
1 files changed, 62 insertions, 10 deletions
diff --git a/inet/netinet/in.h b/inet/netinet/in.h
index 180227af5b..2c2c1847a2 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. */