From acc5e3a0c20432199181fef2bc6204fbd11d21d0 Mon Sep 17 00:00:00 2001
From: cuiweixie <cuiweixie@gmail.com>
Date: Wed, 28 Sep 2022 00:31:44 +0800
Subject: [PATCH] net/textproto: use bytes.Clone

Change-Id: Ic73d667a98df3f2d1705a67e7e8625c6ba65cc0a
Reviewed-on: https://go-review.googlesource.com/c/go/+/435284
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
---
 src/net/textproto/reader.go | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/src/net/textproto/reader.go b/src/net/textproto/reader.go
index 1f7afc5766..1cae6ba1e6 100644
--- a/src/net/textproto/reader.go
+++ b/src/net/textproto/reader.go
@@ -42,9 +42,7 @@ func (r *Reader) ReadLine() (string, error) {
 func (r *Reader) ReadLineBytes() ([]byte, error) {
 	line, err := r.readLineSlice()
 	if line != nil {
-		buf := make([]byte, len(line))
-		copy(buf, line)
-		line = buf
+		line = bytes.Clone(line)
 	}
 	return line, err
 }
@@ -111,9 +109,7 @@ func trim(s []byte) []byte {
 func (r *Reader) ReadContinuedLineBytes() ([]byte, error) {
 	line, err := r.readContinuedLineSlice(noValidation)
 	if line != nil {
-		buf := make([]byte, len(line))
-		copy(buf, line)
-		line = buf
+		line = bytes.Clone(line)
 	}
 	return line, err
 }
-- 
2.50.0