From: Daniel Stenberg <daniel@haxx.se>
Date: Mon, 11 Feb 2019 06:56:00 +0000 (+0100)
Subject: connection_check: set ->data to the transfer doing the check
X-Git-Tag: curl-7_64_1~172
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=38d8e1bd4ed1ae52930ae466ecbac78e888b142f;p=thirdparty%2Fcurl.git

connection_check: set ->data to the transfer doing the check

The http2 code for connection checking needs a transfer to use. Make
sure a working one is set before handler->connection_check() is called.

Reported-by: jnbr on github
Fixes #3541
Closes #3547
---

diff --git a/lib/url.c b/lib/url.c
index bdb4729993..bc47685db3 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -964,6 +964,7 @@ static bool extract_if_dead(struct connectdata *conn,
       /* The protocol has a special method for checking the state of the
          connection. Use it to check if the connection is dead. */
       unsigned int state;
+      conn->data = data; /* use this transfer for now */
       state = conn->handler->connection_check(conn, CONNCHECK_ISDEAD);
       dead = (state & CONNRESULT_DEAD);
     }