refactor - pasdns can now look sane

src/helper/stringfuckery.go

@@ -1,5 +1,10 @@
 package helper
 
+import (
+	"crypto/rand"
+	"math/big"
+)
+
 func Ender() string {
 	return string(rune(0))
 }
@@ -7,3 +12,16 @@ func Ender() string {
 func StringToByteWithEnd(str string) []byte {
 	return append([]byte(str), byte(0))
 }
+
+func GetRandString(length int) string {
+	const charset = "qwertyuiopasdfghjklzxcvbnm"
+	result := make([]byte, length)
+	for i := range result {
+		num, err := rand.Int(rand.Reader, big.NewInt(int64(len(charset))))
+		if err != nil {
+			panic(err)
+		}
+		result[i] = charset[num.Int64()]
+	}
+	return string(result)
+}