From ef6a6e94f143dee5c715edaaa2e0fa0f6cec504b Mon Sep 17 00:00:00 2001
From: Anton Tolchanov <anton@tailscale.com>
Date: Mon, 6 Nov 2023 11:19:14 +0000
Subject: [PATCH] derp/derphttp: use a getter method to read server key

To hold the mutex while accessing it.

Fixes #10122

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
---
 derp/derphttp/derphttp_client.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/derp/derphttp/derphttp_client.go b/derp/derphttp/derphttp_client.go
index cf2868ae3..b2933ab4c 100644
--- a/derp/derphttp/derphttp_client.go
+++ b/derp/derphttp/derphttp_client.go
@@ -100,7 +100,7 @@ type Client struct {
 }
 
 func (c *Client) String() string {
-	return fmt.Sprintf("<derphttp_client.Client %s url=%s>", c.serverPubKey.ShortString(), c.url)
+	return fmt.Sprintf("<derphttp_client.Client %s url=%s>", c.ServerPublicKey().ShortString(), c.url)
 }
 
 // NewRegionClient returns a new DERP-over-HTTP client. It connects lazily.