From c227dd54dc3a3a08b3a6b132ff8ccbe2ce0e4639 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jukka=20Jyl=C3=A4nki?= <jujjyl@gmail.com>
Date: Wed, 19 Nov 2025 12:28:45 +0200
Subject: [PATCH] Fix missing null termination of a string in Getaddrinfo() in
 websocket_to_posix_proxy utility.

---
 tools/websocket_to_posix_proxy/src/websocket_to_posix_proxy.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/websocket_to_posix_proxy/src/websocket_to_posix_proxy.c b/tools/websocket_to_posix_proxy/src/websocket_to_posix_proxy.c
index 6f9a10c23ad2d..776bcdad9b66d 100644
--- a/tools/websocket_to_posix_proxy/src/websocket_to_posix_proxy.c
+++ b/tools/websocket_to_posix_proxy/src/websocket_to_posix_proxy.c
@@ -1494,6 +1494,7 @@ void Getaddrinfo(int client_fd, uint8_t *data, uint64_t numBytes) {
   r->ret = ret;
   r->errno_ = errorCode;
   strncpy(r->ai_canonname, ai_canonname, MAX_NODE_LEN-1);
+  r->ai_canonname[MAX_NODE_LEN-1] = 0; // Null terminate output string if it truncated.
   r->addrCount = addrCount;
 
   struct addrinfo *ai = res;