From f489d50ca5fd8b6a3a622e2521e2ca52787a6608 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Mon, 25 Apr 2022 16:24:33 +0200
Subject: [PATCH] connect: store "conn_remote_port" in the info struct

To make it available after the connection ended.

Prerequisite for the patches that address CVE-2022-27774.

Upstream-Status: Backport [https://github.com/curl/curl/commit/08b8ef4e726ba10f45081ecda5b3cea788d3c839]
Signed-off-by: Robert Joslyn <robert.joslyn@redrectangle.org>
---
 lib/connect.c | 1 +
 lib/urldata.h | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/connect.c b/lib/connect.c
index 64f9511..7518807 100644
--- a/lib/connect.c
+++ b/lib/connect.c
@@ -623,6 +623,7 @@ void Curl_persistconninfo(struct Curl_easy *data, struct connectdata *conn,
   data->info.conn_scheme = conn->handler->scheme;
   data->info.conn_protocol = conn->handler->protocol;
   data->info.conn_primary_port = conn->port;
+  data->info.conn_remote_port = conn->remote_port;
   data->info.conn_local_port = local_port;
 }
 
diff --git a/lib/urldata.h b/lib/urldata.h
index f92052a..5218f76 100644
--- a/lib/urldata.h
+++ b/lib/urldata.h
@@ -1160,7 +1160,11 @@ struct PureInfo {
      reused, in the connection cache. */
 
   char conn_primary_ip[MAX_IPADR_LEN];
-  int conn_primary_port;
+  int conn_primary_port; /* this is the destination port to the connection,
+                            which might have been a proxy */
+  int conn_remote_port;  /* this is the "remote port", which is the port
+                            number of the used URL, independent of proxy or
+                            not */
   char conn_local_ip[MAX_IPADR_LEN];
   int conn_local_port;
   const char *conn_scheme;
