wireguard-go/tai64n/tai64n.go
Jason A. Donenfeld 4fd55daafe tai64n: use proper nanoseconds offset
The code before was obviously wrong.

Reported-by: Vlad Krasnov <vlad@cloudflare.com>
2018-11-08 03:58:01 +01:00

32 lines
605 B
Go

/* SPDX-License-Identifier: GPL-2.0
*
* Copyright (C) 2017-2018 WireGuard LLC. All Rights Reserved.
*/
package tai64n
import (
"bytes"
"encoding/binary"
"time"
)
const TimestampSize = 12
const base = uint64(4611686018427387914)
type Timestamp [TimestampSize]byte
func Now() Timestamp {
var tai64n Timestamp
now := time.Now()
secs := base + uint64(now.Unix())
nano := uint32(now.Nanosecond())
binary.BigEndian.PutUint64(tai64n[:], secs)
binary.BigEndian.PutUint32(tai64n[8:], nano)
return tai64n
}
func (t1 Timestamp) After(t2 Timestamp) bool {
return bytes.Compare(t1[:], t2[:]) > 0
}