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docs edns0

This commit is contained in:
Miek Gieben 2011-01-27 14:28:04 +01:00
parent df645035a8
commit 5ce850ff22
1 changed files with 10 additions and 10 deletions
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20
edns.go
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@ -5,10 +5,10 @@ import (
"encoding/hex"
)
// EDNS0 Options and Do bit
// EDNS0 Options
const (
OptionCodeLLQ = 1 // Not used
OptionCodeUL = 2 // Not used
OptionCodeLLQ = 1 // not used
OptionCodeUL = 2 // not used
OptionCodeNSID = 3 // NSID, RFC5001
_DO = 1 << 7 // dnssec ok
)
@ -33,7 +33,7 @@ type Option struct {
type RR_OPT struct {
Hdr RR_Header
Option []Option "OPT" // Tag is used in Pack and Unpack
Option []Option "OPT" // tag is used in Pack and Unpack
}
func (rr *RR_OPT) Header() *RR_Header {
@ -66,22 +66,22 @@ func (rr *RR_OPT) String() string {
return s
}
// Get the EDNS version (always 0 currently)
// Get the EDNS version (always 0 currently).
func (rr *RR_OPT) Version() uint8 {
return 0
}
// Set the version of EDNS
// Set the version of EDNS.
func (rr *RR_OPT) SetVersion(v uint8) {
return
}
// Get the UDP buffer size
// Get the UDP buffer size.
func (rr *RR_OPT) UDPSize() uint16 {
return rr.Hdr.Class
}
// Set the UDP buffer size
// Set the UDP buffer size/
func (rr *RR_OPT) SetUDPSize(size uint16) {
rr.Hdr.Class = size
}
@ -96,7 +96,7 @@ func (rr *RR_OPT) SetUDPSize(size uint16) {
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
*/
// Get the do bit
// Get the DO bit.
func (rr *RR_OPT) Do() bool {
return byte(rr.Hdr.Ttl >> 8) &_DO == _DO
}
@ -111,7 +111,7 @@ func (rr *RR_OPT) SetDo() {
rr.Hdr.Ttl = uint32(b1)<<24 | uint32(b2)<<16 | uint32(b3)<<8 | uint32(b4)
}
// Return the NSID as hex string
// Return the NSID as hex string.
func (rr *RR_OPT) Nsid() string {
return "NSID: " + rr.Option[0].Data
}