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package dhcpv6
import (
"fmt"
"github.com/u-root/u-root/pkg/uio"
)
// OptElapsedTime implements the Elapsed Time option.
//
// This module defines the OptElapsedTime structure.
// https://www.ietf.org/rfc/rfc3315.txt
type OptElapsedTime struct {
ElapsedTime uint16
}
func (op *OptElapsedTime) Code() OptionCode {
return OptionElapsedTime
}
// ToBytes marshals this option to bytes.
func (op *OptElapsedTime) ToBytes() []byte {
buf := uio.NewBigEndianBuffer(nil)
buf.Write16(op.ElapsedTime)
return buf.Data()
}
func (op *OptElapsedTime) String() string {
return fmt.Sprintf("OptElapsedTime{elapsedtime=%v}", op.ElapsedTime)
}
// build an OptElapsedTime structure from a sequence of bytes.
// The input data does not include option code and length bytes.
func ParseOptElapsedTime(data []byte) (*OptElapsedTime, error) {
var opt OptElapsedTime
buf := uio.NewBigEndianBuffer(data)
opt.ElapsedTime = buf.Read16()
return &opt, buf.FinError()
}
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