From a3555c86bd10149a1ab0c1b2810756ec54cfbe3a Mon Sep 17 00:00:00 2001
From: xiazhvera <zhvxia@amazon.com>
Date: Thu, 3 Aug 2023 00:04:22 -0700
Subject: [PATCH] Fix: release alpn string before set for tls_ctx_options
 (#588)

* release alpn string before set

* Update source/tls_channel_handler.c

Co-authored-by: Dengke Tang <dengket@amazon.com>

* clang-format

---------

Co-authored-by: Dengke Tang <dengket@amazon.com>
---
 source/tls_channel_handler.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/source/tls_channel_handler.c b/source/tls_channel_handler.c
index aa80459b7..83955def1 100644
--- a/source/tls_channel_handler.c
+++ b/source/tls_channel_handler.c
@@ -441,6 +441,8 @@ int aws_tls_ctx_options_init_default_server(
 }
 
 int aws_tls_ctx_options_set_alpn_list(struct aws_tls_ctx_options *options, const char *alpn_list) {
+    aws_string_destroy(options->alpn_list);
+
     options->alpn_list = aws_string_new_from_c_str(options->allocator, alpn_list);
     if (!options->alpn_list) {
         return AWS_OP_ERR;