# -*-Shell-script-*-
#
# hal-functions.sh:	This file contains functions to be used by most or all
#                       hal shell scripts
# hal-system-lcd-get-brightness.sh
#
# Licensed under the Academic Free License version 2.1
#

proc hal_check_priv {
    if test $HAVE_POLKIT = "1" -a -n $HAL_METHOD_INVOKED_BY_SYSTEMBUS_CONNECTION_NAME {
        setvar ACTION = "$1"
        setvar PK_RESULT = $(hal-is-caller-privileged --udi $UDI --action $ACTION \
            --caller $HAL_METHOD_INVOKED_BY_SYSTEMBUS_CONNECTION_NAME)
        setvar RET = "$Status"
        if test $RET != "0" {
            echo "org.freedesktop.Hal.Device.Error" >&2
            echo "Cannot determine if caller is privileged" >&2
            exit 1
        }
        if test $PK_RESULT != "yes" {
            echo "org.freedesktop.Hal.Device.PermissionDeniedByPolicy" >&2
            echo "$ACTION $PK_RESULT <-- (action, result)" >&2
            exit 1
        }
    }
}

proc hal_call_backend {
    setvar PROGRAM = $(basename $0)
    if test -n $HALD_UNAME_S -a -x ./$HALD_UNAME_S/$PROGRAM-$HALD_UNAME_S {
        ./$HALD_UNAME_S/$PROGRAM-$HALD_UNAME_S $ifsjoin(ARGV)
    } else {
        echo "org.freedesktop.Hal.Device.UnknownError" >&2
        echo "No back-end for your operating system" >&2
        exit 1
    }
}

proc hal_exec_backend {
    setvar PROGRAM = $(basename $0)
    if test -n $HALD_UNAME_S -a -x ./$HALD_UNAME_S/$PROGRAM-$HALD_UNAME_S {
        exec ./$HALD_UNAME_S/$PROGRAM-$HALD_UNAME_S $ifsjoin(ARGV)
    } else {
        echo "org.freedesktop.Hal.Device.UnknownError" >&2
        echo "No back-end for your operating system" >&2
        exit 1
    }
}