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Import macros IN_LINKLOCAL(), IN_PRIVATE(), IN_LOCAL_GROUP(), IN_ANY_LOCAL().

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This is not a functional change.

IN_LINKLOCAL() tests if an address falls within the IPv4 link-local prefix.
IN_PRIVATE() tests if an address falls within an RFC 1918 private prefix.
IN_LOCAL_GROUP() tests if an address falls within the statically assigned
link-local multicast scope specified in RFC 2365.
IN_ANY_LOCAL() tests for either of IN_LINKLOCAL() or IN_LOCAL_GROUP().

As with the existing macros in the FreeBSD netinet stack, comparisons
are performed in host-byte order.

See also:	RFC 1918, RFC 2365, RFC 3927
Obtained from:	NetBSD (dyoung@)
MFC after:	2 weeks
This commit is contained in:
Bruce M Simpson 2007-01-31 14:34:47 +00:00
parent fcacf52ec7
commit 1976bc4af7
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=166368
1 changed files with 10 additions and 0 deletions
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10
sys/netinet/in.h
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@ -351,6 +351,16 @@ __END_DECLS
#define IN_EXPERIMENTAL(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000)
#define IN_BADCLASS(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000)
#define IN_LINKLOCAL(i) (((u_int32_t)(i) & 0xffff0000) == 0xa9fe0000)
#define IN_PRIVATE(i) ((((u_int32_t)(i) & 0xff000000) == 0x0a000000) || \
(((u_int32_t)(i) & 0xfff00000) == 0xac100000) || \
(((u_int32_t)(i) & 0xffff0000) == 0xc0a80000))
#define IN_LOCAL_GROUP(i) (((u_int32_t)(i) & 0xffffff00) == 0xe0000000)
#define IN_ANY_LOCAL(i) (IN_LINKLOCAL(i) || IN_LOCAL_GROUP(i))
#define INADDR_LOOPBACK (u_int32_t)0x7f000001
#ifndef _KERNEL
#define INADDR_NONE 0xffffffff /* -1 return */