Fix buffer grow for n < length

Forbid buffer length decrease.
gortc · Jul 16, 2019 · a24dfdb · a24dfdb
1 parent 76358cb
commit a24dfdb
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/message.go b/message.go
@@ -106,6 +106,9 @@ func (m *Message) Reset() {
 
 // grow ensures that internal buffer has n length.
 func (m *Message) grow(n int) {
+	if len(m.Raw) >= n {
+		return
+	}
 	if cap(m.Raw) >= n {
 		m.Raw = m.Raw[:n]
 		return