# suexec library script

if [ -z "${__suexec_sh_loaded}" ]
then
  __suexec_sh_loaded=yes
  
  # exec a command via sudo/su
  # Can be used to reexec this process under su/sudo, if run like this from
  # the top-level:
  #
  #  suexec "${0}" "${@}"
  #
  # Specify target user name with -u as the first parameter
  #
  #  suexec -u user "${0}" "${@}"
  #
  # Just as exec, this will replace the current process entirely, and will not
  # return except upon error.
  suexec() {
    user="root"
    # Set name if user provided
    if [ "${1}" = "-u" ]
    then
      user="${2}"
      shift 2
    fi
    
    # suexec if needed
    if [ "$(id -un)" != "${user}" ]
    then
      # Find a su/sudo
      cmd="sudo -u ${user}"
      [ -x "$(which sudo 2>/dev/null)" ] || cmd="su ${user} -c"
      exec ${cmd} "${@}"
    fi
  }
fi