runasroot.sh revision 9a2e9d56a7114a58b1836316152600105a5d3d9b
#!/bin/sh
## @file
# VirtualBox privileged execution helper script for Linux and Solaris
#
#
# Copyright (C) 2009-2011 Oracle Corporation
#
# This file is part of VirtualBox Open Source Edition (OSE), as
# available from http://www.virtualbox.org. This file is free software;
# you can redistribute it and/or modify it under the terms of the GNU
# General Public License (GPL) as published by the Free Software
# Foundation, in version 2 as it comes in the "COPYING" file of the
# VirtualBox OSE distribution. VirtualBox OSE is distributed in the
# hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
#
# Deal with differing "which" semantics on Linux and Solaris
mywhich() {
which "$1" | grep -v "no $1"
}
ostype=`uname -s`
if test "$ostype" != "Linux" && test "$ostype" != "SunOS" ; then
echo "Linux/Solaris not detected."
exit 1
fi
case "$#" in "2"|"3")
;;
*)
echo "Usage: `basename $0` DESCRIPTION COMMAND [ADVICE]" >&2
echo >&2
echo "Attempt to execute COMMAND with root privileges, displaying DESCRIPTION if" >&2
echo "possible and displaying ADVICE if possible if no su(1)-like tool is available." >&2
exit 1
;;
esac
DESCRIPTION=$1
COMMAND=$2
ADVICE=$3
PATH=$PATH:/bin:/usr/bin:/usr/local/bin:/sbin:/usr/sbin:/usr/local/sbin:/usr/X11/bin
case "$ostype" in SunOS)
PATH=$PATH:/usr/sfw/bin:/usr/gnu/bin:/usr/xpg4/bin:/usr/xpg6/bin:/usr/openwin/bin:/usr/ucb
GKSU_SWITCHES="-au root"
;;
*)
GKSU_SWITCHES=""
;;
esac
case "$DISPLAY" in ?*)
KDESUDO="`mywhich kdesudo`"
case "$KDESUDO" in ?*)
eval "\"$KDESUDO\" --comment \"$DESCRIPTION\" -- $COMMAND"
exit
;;
esac
GKSU="`mywhich gksu`"
case "$GKSU" in ?*)
# Older gksu does not grok --description nor '--' and multiple args.
# @todo which versions do?
# "$GKSU" --description "$DESCRIPTION" -- "$@"
# Note that $GKSU_SWITCHES is NOT quoted in the following
"$GKSU" $GKSU_SWITCHES "$COMMAND"
exit
;;
esac
;;
esac # $DISPLAY
# pkexec may work for ssh console sessions as well if the right agents
# are installed. However it is very generic and does not allow for any
# custom messages. Thus it comes after gksu.
PKEXEC="`mywhich pkexec`"
case "$PKEXEC" in ?*)
eval "\"$PKEXEC\" $COMMAND"
exit
;;
esac
# The ultimate fallback is running 'su -' within an xterm. We use the
# title of the xterm to tell what is going on.
case "$DISPLAY" in ?*)
SU="`mywhich su`"
case "$SU" in ?*)
GNOME_TERMINAL="`mywhich gnome-terminal`"
case "$GNOME_TERMINAL" in ?*)
"$GNOME_TERMINAL" --title "$DESCRIPTION - su" -x su - root -c "$COMMAND"
exit
;;
esac
XTERM="`mywhich xterm`"
case "$XTERM" in ?*)
"$XTERM" -T "$DESCRIPTION - su" -e su - root -c "$COMMAND"
exit
;;
esac
;;
esac
esac # $DISPLAY
# Failure...
case "$DISPLAY" in ?*)
echo "Unable to locate 'pkexec', 'gksu' or 'su+xterm'. $ADVICE" >&2
;;
*)
echo "Unable to locate 'pkexec'. $ADVICE" >&2
;;
esac
exit 1