v0.1 - initial commit

packing.go

@@ -0,0 +1,39 @@
+package winpwn
+
+import "encoding/binary"
+
+// P16 packs a uint16 into a little-endian byte slice.
+func P16(val uint16) []byte {
+	b := make([]byte, 2)
+	binary.LittleEndian.PutUint16(b, val)
+	return b
+}
+
+// P32 packs a uint32 into a little-endian byte slice.
+func P32(val uint32) []byte {
+	b := make([]byte, 4)
+	binary.LittleEndian.PutUint32(b, val)
+	return b
+}
+
+// P64 packs a uint64 into a little-endian byte slice.
+func P64(val uint64) []byte {
+	b := make([]byte, 8)
+	binary.LittleEndian.PutUint64(b, val)
+	return b
+}
+
+// U16 unpacks a little-endian uint16 from the first 2 bytes of b.
+func U16(b []byte) uint16 {
+	return binary.LittleEndian.Uint16(b)
+}
+
+// U32 unpacks a little-endian uint32 from the first 4 bytes of b.
+func U32(b []byte) uint32 {
+	return binary.LittleEndian.Uint32(b)
+}
+
+// U64 unpacks a little-endian uint64 from the first 8 bytes of b.
+func U64(b []byte) uint64 {
+	return binary.LittleEndian.Uint64(b)
+}