socks and misc patch to 2.9.9p2

[Michael]

> 
> Out of interest what is wrong with 'ProxyCommand' for handling this?
>  This is kinda why this was design for to support socks and other
> proxy type software without the nasty #ifdef/#endif code.

There are only 3 or 4 instances of this and no added code lines if 
you consider the effect of the ifdef's

doesn't work for scp, and even if it did, I've got a ton of scripts 
in existence on numerous machines that are using the old ssh-1.2.xx 
reference release. It would be nice to upgrade transparently. I'm 
sure that is why others have tried to add this feature in the past.
Michael

> 
> [.. ssh.1 ..]
>      ProxyCommand
>              Specifies the command to use to connect to the server. 
>              The
>       command string extends to the end of the line, and is
>              executed with /bin/sh. In the command string, `%h' will
>              be substituted by the host name to connect and `%p' by
>              the port.
>       The command can be basically anything, and should read from
>              its standard input and write to its standard output. 
>              It should eventually connect an sshd(8) server running
>              on some machine, or execute sshd -i some where.  Host
>              key management will be done using the HostName of the
>              host being connected (defaulting to the name typed by
>              the user).  Note that CheckHostIP is not available for
>              connects with a proxy command.
> [..]
> 
> [.. Example in readconf.c ..]
>    Host puukko.hut.fi
>      User t35124p
>      ProxyCommand ssh-proxy %h %p
> 
> 
> - Ben
> 
> On Sat, 6 Oct 2001, Michael Robinton wrote:
> 
> > Attached is a very small patch that allows the ssh clients to use the
> > socks5 library. It should work with socks4 but is untested.
> >
> > Tested on linux only
> > configure --with-socks
> > configure --with-socks5
> >
> >
> > Also included is a configure option to disable scp statistics
> >
> > --disable-scp-stats
> >
> > modified files
> >
> > openssh-2.9.9p2/acconfig.h
> > openssh-2.9.9p2/channels.c
> > openssh-2.9.9p2/configure.in
> > openssh-2.9.9p2/includes.h
> > openssh-2.9.9p2/scp.c
> > openssh-2.9.9p2/sshconnect.c
> >
> > autoconf and autoheader need to be run
> >
> > patches change only a line or two of actual C code in each file, most of
> > the changes are in the configure script
> >
> > Hope this makes it into the distribution :-)
> >
> > Michael Robinton
> > michael at bizsystems.com
> >
>