#!/bin/bash
#  $HeadURL$ $LastChangedRevision$
set -e
PROGNAME=$(basename $0)

#  Load support functions
. $(pcms-config PCMS_SHARE_PREFIX)/scripts/support.sh

main()
{
    #  Defaults for options
    VERBOSELEVEL=2
    OPT_FILE=/etc/resolv.conf
    OPT_TOUCH=false

    #  Process options
    while [ $# -ge 1 ]; do
        case $1 in
            --file=*)        OPT_FILE=${1#*=} ;;
            --touch)         OPT_TOUCH=true ;;
            --debug=*)       VERBOSELEVEL=${1#*=} ;;
            -d)              VERBOSELEVEL=$2; shift ;;
            -v|--verbose)    VERBOSELEVEL=3 ;;
            --)              shift; break ;;
            -*)              error "main: $1: bad option" ;;
            *)               break ;;
        esac
        shift
    done

    #  Process arguments
    [ $# = 1 ] || usage
    eval set -- $(encode --decode "$1")
    [ $# = 1 -o $# = 2 ] || usage
    NAME_SERVERS=$1
    SEARCH_DOMAINS=$2
    debug 10 "dns_static: NAME_SERVERS=\"$NAME_SERVERS\", SEARCH_DOMAINS=\"$SEARCH_DOMAINS\""

    #  Guts
    {
        for NAME_SERVER in $NAME_SERVERS; do
            echo "nameserver $NAME_SERVER"
        done
        [ "X$SEARCH_DOMAINS" = X ] || echo "search $SEARCH_DOMAINS"
     } > $OPT_FILE
     #  OPT_TOUCH handling not needed; the file is *always* touched by the above code.
}

usage() { echo "Usage: $PROGNAME [ --file=<file> ] <nameserver-ipaddr>[@....][@<search-domains>...]" >&2; exit 1; }

main "$@"