Subject: Re: CVS_RSH to ssh
To: NetBSD Userlevel Technical Discussion List <>
From: Andrew Brown <>
List: tech-userlevel
Date: 06/18/2003 00:43:50
i still use rsh with cvs on occasion.  it's useful for things like
pretending to access a remote repository that's really local since i
can have:

	% ps $$
	664 p1 Ss   0:00.12 -csh (tcsh)
	% echo $CVS_RSH
	CVS_RSH: Undefined variable.
	% grep rsh /etc/inetd.conf 
	#shell          stream  tcp     nowait  root    /usr/libexec/rshd ...
	#shell          stream  tcp6    nowait  root    /usr/libexec/rshd ...
	#kshell         stream  tcp     nowait  root    /usr/libexec/rshd ...
	% cvs -d localhost:/cvsroot co postfix
	cvs server: Updating postfix
	U postfix/
	U postfix/.printfck
	U postfix/0README

since i know that if i rsh to *localhost* to execute a command, i'll
get a connection over a socketpair() and not an inet/inet6 connection.
i also get better performance than over an inet/inet6 connection,
since all that wasteful checksumming isn't performed.  :)

it's tricks like this that allow me to have a local copy of the cvs
binary that's not suid to the owner of the cvs repository, but still
be able check stuff out that i can update/change/delete without having
to involve "privileges".

then again, i'm not claiming to be in the majority.  i'm just
providing a data point.

|-----< "CODE WARRIOR" >-----|             * "ah!  i see you have the internet (Andrew Brown)                that goes *ping*!"       * "information is power -- share the wealth."