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package dhcpv6
import (
"fmt"
"github.com/insomniacslk/dhcp/iana"
"github.com/u-root/uio/uio"
)
// OptStatusCode represents a DHCPv6 Status Code option
//
// This module defines the OptStatusCode structure.
// https://www.ietf.org/rfc/rfc3315.txt
type OptStatusCode struct {
StatusCode iana.StatusCode
StatusMessage string
}
// Code returns the option code.
func (op *OptStatusCode) Code() OptionCode {
return OptionStatusCode
}
// ToBytes serializes the option and returns it as a sequence of bytes.
func (op *OptStatusCode) ToBytes() []byte {
buf := uio.NewBigEndianBuffer(nil)
buf.Write16(uint16(op.StatusCode))
buf.WriteBytes([]byte(op.StatusMessage))
return buf.Data()
}
// String returns a human-readable option.
func (op *OptStatusCode) String() string {
return fmt.Sprintf("%s: {Code=%s (%d); Message=%s}",
op.Code(), op.StatusCode, op.StatusCode, op.StatusMessage)
}
// FromBytes builds an OptStatusCode structure from a sequence of bytes. The
// input data does not include option code and length bytes.
func (op *OptStatusCode) FromBytes(data []byte) error {
buf := uio.NewBigEndianBuffer(data)
op.StatusCode = iana.StatusCode(buf.Read16())
op.StatusMessage = string(buf.ReadAll())
return buf.FinError()
}
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