Merge pull request #304 from vulncheck-oss/pack

Add transform.PackBigInt64

Author: j-baines

transform/encode.go

@@ -197,3 +197,15 @@ func PackBigInt32(n int) string {
 
 	return packed.String()
 }
+
+// PackBigInt64 packs a big-endian 64-bit integer as a string.
+func PackBigInt64(n int) string {
+	var packed strings.Builder
+
+	err := binary.Write(&packed, binary.BigEndian, int64(n))
+	if err != nil {
+		output.PrintFrameworkError(err.Error())
+	}
+
+	return packed.String()
+}

transform/encode_test.go

@@ -174,6 +174,16 @@ func TestPackBigInt32(t *testing.T) {
 	t.Log(packed)
 }
 
+func TestPackBigInt64(t *testing.T) {
+	packed := PackBigInt64(0x4142434445464748)
+
+	if packed != "ABCDEFGH" {
+		t.Fatal(packed)
+	}
+
+	t.Log(packed)
+}
+
 func TestInflate(t *testing.T) {
 	compressed := "\x1f\x8b\x08\x08\xf4\xe9\x97\x66\x00\x03\x77\x61\x74\x00\x2b\x2b\xcd\xc9\x4b\xce\x48\x4d\xce\xe6\x02\x00\x3d\xf1\xb3\xf9\x0a\x00\x00\x00"
 	inflated, ok := Inflate([]byte(compressed))