On Monday 27 August 2007 6:16:10 am Christoph Kurrat wrote: > 2007/8/27, Rob Landley <[EMAIL PROTECTED]>: > > On Sunday 26 August 2007 8:29:26 am Christoph Kurrat wrote: > > > The busybox uses ash, but an .ash* file does not exist. > > > If I create the .ashrc and export ENV=/var/tmp/.ashrc it works, but to > > > export ENV, I again need the /etc/profile. > > > > Um... What? I _think_ you just said "If I put it in ~/.ashrc it works". > > In which case: happy to hear it. In which case where does the need for > > /etc/profile come in? > > If I put it into ~/.ashrc end export ENV=/var/tmp/.ashrc it works, if > this export is inside /etc/profile. > I need /etc/profile, because an export inside the > dropbear-start-script does not influence the environment in an SSH > session.
Ok, so your shell is reading /etc/profile, not .ashrc. You can make it read .ashrc: from /etc/profile. Check. > > Except it's child processes you're worrying about here, not parent > > processes. > > I thought, the SSH sessions would fork from a parent process of the > dropbear-start-script. SSH sessions fork from the dropbear daemon and exec a shell with a command line. That shell is the "parent" here, it runs your command as a child of that shell (unless you feed it "exec" as the command to run). One shell instance is spawned per connection, last I checked. ssh (including dropbear as far as I know) washes all sessions through whatever you have listed as your shell in /etc/passwd. I once made a gatekeeper program that allowed a very restricted set of functionality (only looking in one directory for executables, and not allowing "/" to be in the name of the executable). > > If $PATH is blank I believe ash sets it to _PATH_STDPATH out > > of /usr/include/paths.h which is "/usr/bin:/bin:/usr/sbin:/sbin". > > OK, so before login, the PATH was blank. > Is that a regular behavior? I'm guessing dropbear is passing an empty environment to its child processes, for security reasons. > Anyway, with the PATH set inside of dropbear, it works. > > Christoph Cool. Rob -- "One of my most productive days was throwing away 1000 lines of code." - Ken Thompson.
