#!/bin/bash SHELL=/bin/bash if [[ $EUID -ne 0 ]]; then echo 'root only'; exit 1; fi ## parent process id #_PPID=$PPID ## grandparent process id (process that called sudo that called us) #_GPPID=$(ps -p$PPID -o ppid=) ## grandparent command #_GPCMD=$(ps -f -p$_GPPID) ## check if called by admin.sh #if [[ ! $_GPCMD =~ 'admin/admin.sh' ]]; then echo 'bad granny'; exit 1; fi ## get lighttpd session id #_LSID=$(ps -C lighttpd -o sid=) ## parent session id _PSID=${@: -1} ## our session id #_SID=$(ps -p$$ -o sid=) ## check if we belong to group/session of lighty and admin.sh #if [ $_LSID != $_PSID -o $_SID != $_LSID ]; then echo 'bad session'; exit 1; fi ## remove _PSID from the arguments _ARGS=${@//$_PSID} eval $_ARGS exit $?