#!/bin/sh
if [ $# -lt 2 ] ;then
	echo privscript vserver vserverdir command ...
	echo THis is the privilege script execute by the vserver
	echo command just in the middle of the initialisation
	echo of a vserver. At this point, the pid namespace
	echo is created, but the chroot is not done
	echo and all capabilities are still on.
	echo
	echo It enables process accounting
	echo mount proc and devpts and execute a command
else
	VSERVER=$1
	shift
	#echo PWD=`pwd`
	mkdir -p proc
	#mkdir -p dev/pts
	if [ ! -f proc/loadavg ] ; then
		# loadavg does not exist, we must mount
		#echo Mounting /proc and /dev/pts
		mount -n -t proc none proc
	elif [ ! -f proc/self/status ] ; then
		# proc/self does not exist, yet loadavg exist
		# it means proc is currently mounted in an old pid namespace
		# we umount and mount again
		#echo RE mounting /proc
		# On some kernel, umount proc fails, on other, umount ./proc does nothing
		umount -n proc 2>/dev/null
		umount -n ./proc 2>/dev/null
		mount -n -t proc none proc
	fi
	shift
	mkdir -p /var/run/vacct
	rm -f /var/run/vacct/acct-$VSERVER.log
	touch /var/run/vacct/acct-$VSERVER.log
	accton /var/run/vacct/acct-$VSERVER.log >/dev/null
	exec "$@"
fi