$NetBSD: patch-bm,v 1.1 2000/03/20 02:25:43 itojun Exp $

--- README-IPv6.orig	Wed Dec 31 19:00:00 1969
+++ README-IPv6	Fri Dec 24 21:50:38 1999
@@ -0,0 +1,171 @@
+ssh-1.2.27-IPv6  version 1.5         KIKUCHI Takahiro <kick@kyoto.wide.ad.jp>
+
+ * ssh-1.2.27-IPv6 can handle both IPv4 and IPv6.
+
+      To enable sshd/ssh to handle both IPv4 and IPv6,
+
+          ./configure --enable-ipv6
+
+      Otherwise sshd/ssh handle IPv4 only as same as original ssh.
+
+ * You can have multiple ListenAddress lines in /etc/sshd_config.
+   It means that sshd can listen multiple addresses.
+
+      Example1: sshd will bind on these four adresses.
+
+           ListenAddress 202.249.17.50
+           ListenAddress 202.249.17.137
+           ListenAddress 3ffe:501:c0b::1
+           ListenAddress 3ffe:501:c0b:20:2a0:c9ff:fe3e:f5fc
+
+      Example2: as same as example1.
+                (Because bertemu.rcac.tdi.co.jp has these four addresses.)
+
+           ListenAddress bertemu.rcac.tdi.co.jp
+
+      Example3: sshd will bind on any address both IPv4 and IPv6.
+
+           ListenAddress ::
+           ListenAddress 0.0.0.0
+
+      Example4: as same as example3.
+
+           No ListenAddress line in /etc/sshd_config.
+
+ * You don't mind whether the host has IPv4 or IPv6 address.
+   You can also specify using only IPv4 (or only IPv6).
+
+      Example1: ssh will try all IPv4 and IPv6 addresses that the host has.
+
+           ssh host
+
+      Example2: ssh will try all IPv4 addresses that the host has.
+
+           ssh -4 host
+
+      Example3: ssh will try all IPv6 addresses that the host has.
+
+           ssh -6 host
+
+ * You can have multiple Port lines in /etc/sshd_config and -p options.
+   It means that sshd can listen multiple ports, not only port 22.
+
+      For example, you run sshd that listens port 22 and port 722,
+      and you can use port 22 for slogin and port 722 for scp.
+      It's useful if you have preference for interactive traffic in the router.
+
+      You can have "AnotherPort 722" line in /etc/ssh_config or your
+      config file (maybe ~/.ssh/config).  In this case, ssh with -A option
+      try to connect to port 722 at first, and try to connect to original
+      port (maybe port 22) if port 722 fails. scp executes ssh with -A option.
+
+ * IPv6 supported platform
+
+      IPv6 feature is available on follwing platforms now.
+
+        kame -- http://www.kame.net/   (used to be called Hydrangea)
+        v6d  -- http://onoe2.sm.sony.co.jp/ipv6/ (IPv6 daemon)
+
+      On the other environments you can compile and run ssh-1.2.27-IPv6 if
+      you have a good getaddrinfo() in your library.
+
+ * How to get ssh-1.2.27-IPv6
+
+     You can get tar.gz or patch to ssh-1.2.27.tar.gz:
+
+        ftp://ftp.kyoto.wide.ad.jp/IPv6/ssh/ssh-1.2.27-IPv6-1.5.tar.gz
+        ftp://ftp.kyoto.wide.ad.jp/IPv6/ssh/ssh-1.2.27-IPv6-1.5-patch.gz
+
+ * How to install ssh-1.2.27-IPv6
+
+     Apply ssh-1.2.27-IPv6-1.5-patch to ssh-1.2.27.tar.gz (or use 
+     ssh-1.2.27-IPv6-1.5.tar.gz) and then see INSTALL file of ssh-1.2.27.
+
+     If you want to enable ssh to handle IPv6, for example,
+
+         % ./configure --enable-ipv6
+         % make
+         % make install
+
+     and you will be able to enjoy ssh handling both IPv6 and IPv4.
+
+ * Change Log
+
+     v1.5   1999-05-15 KIKUCHI Takahiro <kick@kyoto.wide.ad.jp>
+
+       * for ssh-1.2.27
+       * supported scp with bracketed ipv6 ip address 
+       * used struct sockaddr_storage instead of union sockunion
+
+     v1.4   1998-08-21 KIKUCHI Takahiro <kick@kyoto.wide.ad.jp>
+
+       * fixed ipv6 address checking bug at match_host() in match.c
+       * cleanup comparing ip address at get_remote_hostname() in canohost.c
+
+     v1.3   1998-08-14 KIKUCHI Takahiro <kick@kyoto.wide.ad.jp>
+
+       * fixed ipv6 address checking bug at match_host() in match.c
+         pointed out by Kenji Rikitake <kenji@k2r.org>
+
+     v1.2.2 1998-08-07 KIKUCHI Takahiro <kick@kyoto.wide.ad.jp>
+
+       * fixed IPv6 enable checking bug in configure.in
+
+     v1.2.1 1998-08-05 KIKUCHI Takahiro <kick@kyoto.wide.ad.jp>
+
+       * fixed AuthLog enable handling bug
+
+     v1.2   1998-08-01 KIKUCHI Takahiro <kick@kyoto.wide.ad.jp>
+
+       * for ssh-1.2.26
+
+     v1.1.5 1998-06-13 KIKUCHI Takahiro <kick@kyoto.wide.ad.jp>
+
+       * supported AuthLog (logging authenticated info) in /etc/sshd_config
+
+     v1.1.4 1998-06-11 KIKUCHI Takahiro <kick@kyoto.wide.ad.jp>
+
+       * supported multiple Port lines in /etc/sshd_config
+       * supported AnotherPort line in /etc/ssh_config
+       * supported -A option of ssh for another port try
+
+     v1.1.3 1998-06-01 KIKUCHI Takahiro <kick@kyoto.wide.ad.jp>
+
+       * X11 connection forwarding IPv6 support
+       * removeed all hostent and sockaddr_in from *.c
+
+     v1.1.2 1998-05-31 Jun-ichiro itojun Itoh <itojun@itojun.org>
+
+       * configuration support for v6d.
+
+     v1.1.1 1998-05-31 Jun-ichiro itojun Itoh <itojun@itojun.org>
+
+       * add getaddinfo.c, getnameinfo.c and gai.h (delete fakelibinet6.c)
+       * configure checks whether getaddrinfo exists or not.
+
+     v1.1   1998-05-31 KIKUCHI Takahiro <kick@kyoto.wide.ad.jp>
+
+       * add fakelibinet6.c (including getaddrinfo and getnameinfo)
+       * compilation support on non-IPv6 environment.
+       * fixed port forwarding bug
+
+     v1.0.1 1998-05-30 Jun-ichiro itojun Itoh <itojun@itojun.org>
+
+       * add ENABLE_IPV6 flag.
+       * configuration support --enable-ipv6 for IPv6 platforms.
+
+     v1.0   1998-05-30 created by KIKUCHI Takahiro <kick@kyoto.wide.ad.jp>
+
+       * first release
+       * IPv6 support except X11 connection forwarding
+
+ * Guideline for making this patch
+
+     * protocol family independent (using AF_UNSPEC)
+     * use getaddrinfo and getnameinfo (see RFC2133)
+     * don't use sockaddr_in and AF_INET (but option -4 uses AF_INET)
+     * don't use sockaddr_in6 and AF_INET6 (but option -6 uses AF_INET6)
+     * don't use gethostbyname, gethostbyaddr and hostent
+     * listen to all addresses for all available protocol family
+     * try to connect to all addresses for all available protocol family
+