From 012e3d815818b3c06b0ae2480debdb3b88ea3368 Mon Sep 17 00:00:00 2001
From: Slavomir <gagliardetto@users.noreply.github.com>
Date: Sun, 8 Aug 2021 17:47:29 +0200
Subject: [PATCH] Add ReadNBytes method to Decoder

---
 decoder.go | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/decoder.go b/decoder.go
index 3717c21..91271c3 100644
--- a/decoder.go
+++ b/decoder.go
@@ -5,6 +5,7 @@ import (
 	"encoding/hex"
 	"errors"
 	"fmt"
+	"io"
 	"math"
 	"reflect"
 	"strings"
@@ -455,6 +456,23 @@ func (d *Decoder) ReadByteArray() (out []byte, err error) {
 	return
 }
 
+func readNBytes(n int, reader io.ByteReader) ([]byte, error) {
+	buf := make([]byte, n)
+	for i := 0; i < n; i++ {
+		b, err := reader.ReadByte()
+		if err != nil {
+			return nil, err
+		}
+		buf[i] = b
+	}
+
+	return buf, nil
+}
+
+func (d *Decoder) ReadNBytes(n int) (out []byte, err error) {
+	return readNBytes(n, d)
+}
+
 func (d *Decoder) ReadByte() (out byte, err error) {
 	if d.Remaining() < TypeSize.Byte {
 		err = fmt.Errorf("required [1] byte, remaining [%d]", d.Remaining())