// cmsigtool -- dealing with KEKS-encoded cm/signed utility
// Copyright (C) 2024-2025 Sergey Matveev <stargrave@stargrave.org>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation, version 3 of the License.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this program.  If not, see <http://www.gnu.org/licenses/>.

package main

import (
	"flag"
	"fmt"
	"os"
)

func usage() {
	fmt.Fprintf(os.Stderr, `Usage:
  cmsigtool [-t TYPE] 4<PUB 8<PRV <DATA >DATA.signed
  cmsigtool -v [-t TYPE] 4<PUB0[,PUB1...] <DATA.signed >DATA
  cmsigtool -d [-t TYPE] 4<PUB 8<PRV <DATA >DATA.signature
  cmsigtool -d -v [-t TYPE] 4<PUB0[,PUB1...] <<(cat DATA.signature DATA)

DATA.signed holds completely encapsulated DATA.
-d(etached) mode keeps DATA completely separate.

`)
	flag.PrintDefaults()
}
