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AF_INET6 in Linux and FreeBSD
Name: Godgory Date: June 2, 2007 at 06:56:38 Pacific OS: linux 2.6 / FreeBSD 5 CPU/Ram: AMD Athlon Barton 2600+/5
Comment:
Hi,
Simple question: why is AF_INET6 defined differently in Linux and in FreeBSD (socket.h) with values of 10 and 28 respectively? How do these 2 OS'es interoperate via ipv6?
Name: fpmurphy Date: June 3, 2007 at 09:50:31 Pacific
Reply:
AF-* simply defines the protocol address family.
See RFC 2553:
3.1 IPv6 Address Family and Protocol Family
A new address family name, AF_INET6, is defined in <sys/socket.h>. The AF_INET6 definition distinguishes between the original sockaddr_in address data structure, and the new sockaddr_in6 data structure.
So long as your code uses the AF_INET6 define rather than a hard coded value and you recompile for each platform, it makes no difference what the value is.
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