# File lib/mongrel.rb, line 757
757:     def change_privilege(user, group)
758:       begin
759:         if group
760:           log "Changing group to #{group}."
761:           Process::GID.change_privilege(Etc.getgrnam(group).gid)
762:         end
763: 
764:         if user
765:           log "Changing user to #{user}." 
766:           Process::UID.change_privilege(Etc.getpwnam(user).uid)
767:         end
768:       rescue Errno::EPERM
769:         log "FAILED to change user:group #{user}:#{group}: #$!"
770:         exit 1
771:       end
772:     end