boot efi

pkg/utf16/utf16.go

@@ -0,0 +1,29 @@
+package utf16
+
+import (
+	"encoding/binary"
+    "fmt"
+	"unicode/utf8"
+)
+
+func FromUTF8(data []byte) (res []byte) {
+    endian := binary.LittleEndian
+
+	res = make([]byte, (len(data)+1)*2)
+
+    res = res[:2]
+    endian.PutUint16(res, 0xfeff)
+
+	for len(data) > 0 {
+		r, size := utf8.DecodeRune(data)
+		if r > 65535 {
+            panic(fmt.Errorf("r=0x%x > 0xffff", r))
+        }
+
+		slen := len(res)
+		res = res[:slen+2]
+		endian.PutUint16(res[slen:], uint16(r))
+		data = data[size:]
+	}
+	return
+}