move every struct into it's own directory in order to run tests individually.

lib/common/data/date.go

@@ -0,0 +1,48 @@
+package common
+
+/*
+I2P Date
+https://geti2p.net/spec/common-structures#date
+Accurate for version 0.9.24
+*/
+
+import (
+	"errors"
+	"time"
+
+	log "github.com/sirupsen/logrus"
+)
+
+const DATE_SIZE = 8
+
+type Date [8]byte
+
+//
+// Time takes the value stored in date as an 8 byte big-endian integer representing the
+// number of milliseconds since the beginning of unix time and converts it to a Go time.Time
+// struct.
+//
+func (date Date) Time() (date_time time.Time) {
+	seconds := Integer(date[:])
+	date_time = time.Unix(0, int64(seconds.Int()*1000000))
+	return
+}
+
+func ReadDate(data []byte) (date Date, remainder []byte, err error) {
+	if len(data) < 8 {
+		log.WithFields(log.Fields{
+			"data": data,
+		}).Error("ReadDate: data is too short")
+		err = errors.New("ReadDate: data is too short")
+		return
+	}
+	copy(date[:], data[:8])
+	remainder = data[8:]
+	return
+}
+
+func NewDate(data []byte) (date *Date, remainder []byte, err error) {
+	objdate, remainder, err := ReadDate(data)
+	date = &objdate
+	return
+}