Cygwin IPv6 extention

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Cygwin/w32api 1.5.25-15 IPv6 extension 0.22 (2009/06/12)

FUTURE PLAN AND CURRENT STATUS:

IPv6 patch on this page is for Cygwin-1.5. Next future release of Cygwin, version 1.7, under beta testing will initially equipe IPv6 feature. Also many IPv6 enabled binaries such as OpenSSH will be distributed at the same time.

THE LATEST:

cygwin-1.5.25-15-ipv6-0.23.zip: bug fix: address test fuctions fixed
a few binary package created. see PACKAGE section.

PREVIOUS RELEASE:

cygwin-1.5.25-15-ipv6-0.22.zip: sync to cygwin 1.5.25-15
cygwin-1.5.24-2-ipv6-0.22.zip: bug fix: accept(2) could not accept IPv6 connection.
cygwin-1.5.24-2-ipv6-0.21.zip: sync to cygwin-1.5.24-2

Cygwin/w32api IPv6 extension provides API subset in RFC2553 using Windows XP or Technology Preview IPv6 by Microsoft. IPv6 extension provides following APIs:

data types and constants	struct in6_addr struct sockaddr_in6 struct sockaddr_storage struct addrinfo struct in6_addr in6addr_loopback struct in6_addr in6addr_any
resolver APIs	getaddrinfo() gai_strerror() freeaddrinfo() getnameinfo() gethostbyname2() (incomplete) inet_pton() inet_ntop()
address test functions	IN6_IS_ADDR_LOOPBACK() IN6_IS_ADDR_UNSPECIFIED() ...

APPLICATION:

IPv6 enabled application list on Cygwin/w32api

BINARY PACKAGE:

IPv6 enabled package list

cygwin-1.5.25-15.tar.bz2
openssh-5.0p1-1.tar.bz2

Only above packages are prepareed. These installation procedure should be performed after installed original Cygwin kit. Reinstall above packages against original package using netowork install of setup.exe. The URI of IPv6 package is follows.

http://cygwin.win6.jp/cygwin-ipv6/

To ignore a signature, invoke setup.exe with '-X' option.

TODO:

Not implemented features:

Compatibility with IPv4 Nodes (mapped address)
Name-to-Index
ioctl operation for IPv6 network interface
w32api isn't fully functional
On Windows 2000, gethostbyaddr(..., AF_INET6): if address family AF_INET6 is given, it can't return correct hostent.

WARNING:

IPv6 extension is very tentative stage.