update date, destination, integer

lib/common/date.go

@@ -7,13 +7,12 @@ import (
 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
+// 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() time.Time {
+func (date Date) Time() (date_time time.Time) {
 	seconds := Integer(date[:])
-	return time.Unix(0, int64(seconds*1000000))
+	date_time = time.Unix(0, int64(seconds*1000000))
+	return
 }

lib/common/destination.go

@@ -7,6 +7,10 @@ import (
 	"strings"
 )
 
+//
+// A Destination is a KeysAndCert with functionallity
+// for generating base32 and base64 addresses.
+//
 type Destination []byte
 
 func (destination Destination) PublicKey() (crypto.PublicKey, error) {
@@ -21,12 +25,19 @@ func (destination Destination) Certificate() (Certificate, error) {
 	return KeysAndCert(destination).Certificate()
 }
 
-func (destination Destination) Base32Address() string {
+//
+// Generate the I2P base32 address for this Destination.
+//
+func (destination Destination) Base32Address() (str string) {
 	hash := crypto.SHA256(destination)
-	str := strings.Trim(base32.EncodeToString(hash[:]), "=")
-	return str + ".b32.i2p"
+	str = strings.Trim(base32.EncodeToString(hash[:]), "=")
+	str = str + ".b32.i2p"
+	return
 }
 
+//
+// Generate the I2P base64 address for this Destination.
+//
 func (destination Destination) Base64() string {
 	return base64.EncodeToString(destination)
 }

lib/common/integer.go

@@ -4,20 +4,22 @@ import (
 	"encoding/binary"
 )
 
+const (
+	INTEGER_SIZE = 8
+)
+
 //
-// Interpret a slice of bytes from length 1
-// to length 8 as a big-endian integer and
-// return an int representation.
+// Interpret a slice of bytes from length 0 to length 8 as a big-endian
+// integer and return an int representation.
 //
-func Integer(number []byte) int {
+func Integer(number []byte) (value int) {
 	num_len := len(number)
-	if num_len < 8 {
+	if num_len < INTEGER_SIZE {
 		number = append(
-			make([]byte, 8-num_len),
+			make([]byte, INTEGER_SIZE-num_len),
 			number...,
 		)
 	}
-	return int(
-		binary.BigEndian.Uint64(number),
-	)
+	value = int(binary.BigEndian.Uint64(number))
+	return
 }

lib/common/integer_test.go

@@ -18,3 +18,10 @@ func TestWorksWith1Byte(t *testing.T) {
 		t.Fatal("Integer() does not work with 1 byte")
 	}
 }
+
+func TestIsZeroWithNoData(t *testing.T) {
+	i := Integer([]byte{})
+	if i != 0 {
+		t.Fatal("Integer() does not work with 0 bytes")
+	}
+}