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package dhcpv6
import (
"fmt"
"strings"
"github.com/insomniacslk/dhcp/dhcpv4"
)
// OptDHCPv4Msg represents a OptionDHCPv4Msg option
//
// This module defines the OptDHCPv4Msg structure.
// https://www.ietf.org/rfc/rfc7341.txt
type OptDHCPv4Msg struct {
Msg *dhcpv4.DHCPv4
}
// Code returns the option code
func (op *OptDHCPv4Msg) Code() OptionCode {
return OptionDHCPv4Msg
}
// ToBytes returns the option serialized to bytes.
func (op *OptDHCPv4Msg) ToBytes() []byte {
return op.Msg.ToBytes()
}
func (op *OptDHCPv4Msg) String() string {
return fmt.Sprintf("%s: %v", op.Code(), op.Msg)
}
// LongString returns a multi-line string representation of DHCPv4 data.
func (op *OptDHCPv4Msg) LongString(indent int) string {
summary := op.Msg.Summary()
ind := strings.Repeat(" ", indent+2)
if strings.Contains(summary, "\n") {
summary = strings.Replace(summary, "\n ", "\n"+ind, -1)
}
ind = strings.Repeat(" ", indent)
return fmt.Sprintf("%s: {%v%s}", op.Code(), summary, ind)
}
// ParseOptDHCPv4Msg builds an OptDHCPv4Msg structure
// from a sequence of bytes. The input data does not include option code and length
// bytes.
func ParseOptDHCPv4Msg(data []byte) (*OptDHCPv4Msg, error) {
var opt OptDHCPv4Msg
var err error
opt.Msg, err = dhcpv4.FromBytes(data)
return &opt, err
}
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