From: Stefan Eissing <stefan@eissing.org>
Date: Thu, 4 Sep 2025 10:00:48 +0000 (+0200)
Subject: websocket: reset upload_done when sending data
X-Git-Tag: curl-8_16_0~27
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5fa4fb0c1334c000f7d5769551bfb64727fee62e;p=thirdparty%2Fcurl.git

websocket: reset upload_done when sending data

Sending websocket data did not clear the "upload_done" flag of
the initial HTTP Upgrade request, leading to KEEP_SEND never be
cleared. This caused the socket to be polled for INOUT after all
the websocket data had been sent. A busy loop.

Closes #18476
---

diff --git a/lib/ws.c b/lib/ws.c
index 6070cd6d0d..a73ab61b0b 100644
--- a/lib/ws.c
+++ b/lib/ws.c
@@ -1200,6 +1200,7 @@ CURLcode Curl_ws_accept(struct Curl_easy *data,
 
       /* start over with sending */
       data->req.eos_read = FALSE;
+      data->req.upload_done = FALSE;
       k->keepon |= KEEP_SEND;
     }