safe copy

ucwong · Jun 10, 2023 · 71e5c8d · 71e5c8d
1 parent 364e638
commit 71e5c8d
Showing 1 changed file with 11 additions and 1 deletion.
diff --git a/common/util.go b/common/util.go
@@ -15,6 +15,16 @@
 
 package common
 
+//func SafeCopy(des, src []byte) []byte {
+//	return append(des[:0], src...)
+//}
+
 func SafeCopy(des, src []byte) []byte {
-	return append(des[:0], src...)
+	if len(des) < len(src) {
+		des = make([]byte, len(src))
+	} else {
+		des = des[:len(src)]
+	}
+	copy(des, src)
+	return des
 }