openssh unix dev - Jul 2001 - [patch] VPN enhancements

Hi,

This patch (mostly my work, except for protocolkeepalives, which
rjk at greenend.org.uk wrote for 2.5, and I forward-ported) came out our
usage for VPN tunnels of ssh, where it was useful for ssh to notice if
the server went away. It includes documentation, and is pretty
self-explanatory. 

Matthew
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-- 
"At least you know where you are with Microsoft."
"True. I just wish I'd brought a paddle."
http://www.debian.org

On Sun, Jul 22, 2001 at 12:56:38PM +0100, Matthew Vernon
wrote:
> +void alarm_catch (int signum)
> +{
> +        if(signum!=SIGALRM) return;
> +	else fatal("ssh_exchange_identification: Timeout waiting for version
information.");
> +}
please not alarm() and signal handling.
signals should not be used at all.

connect timeouts will be supported soon using select()
and async connects().