From 2a639572043dc39d057e2a80214ba47a76dcc3d2 Mon Sep 17 00:00:00 2001
From: "Randall S. Becker" <randall.becker@nexbridge.ca>
Date: Mon, 1 Jun 2026 21:18:00 +0100
Subject: [PATCH] capsule: include `arpa/inet.h` for `ntohs()` declaration

Some platforms require inclusion of arpa/inet.h in order to use ntohs().

Follow-up to e78b1b3eccfa6a2e367a1225ea1b66dafcdac3c4 #21153

Closes #21834
---
 lib/capsule.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/capsule.c b/lib/capsule.c
index 4f5d0e7e24..1ba0ccfb84 100644
--- a/lib/capsule.c
+++ b/lib/capsule.c
@@ -26,6 +26,10 @@
 
 #if !defined(CURL_DISABLE_PROXY) && !defined(CURL_DISABLE_HTTP)
 
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>  /* for htons() */
+#endif
+
 #include <curl/curl.h>
 #include "urldata.h"
 #include "curlx/dynbuf.h"