From 21254c3665c9cb8fea9f95eb78c0a36fa2a11d52 Mon Sep 17 00:00:00 2001
From: Sadie Powell
Date: Wed, 8 Jun 2022 15:38:55 +0100
Subject: Fix parsing non-normalised WebSocket headers.

Ref: #1987.
---
 src/modules/m_websocket.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/modules/m_websocket.cpp')

diff --git a/src/modules/m_websocket.cpp b/src/modules/m_websocket.cpp
index 0b43ea60b..792f8569e 100644
--- a/src/modules/m_websocket.cpp
+++ b/src/modules/m_websocket.cpp
@@ -92,7 +92,7 @@ class WebSocketHook : public IOHookMiddle
 			while (startpos < maxpos)
 			{
 				size_t endpos = req.find(newline, startpos);
-				if (req.compare(startpos, headerlen, header))
+				if (strncasecmp(req.c_str() + startpos, header, headerlen) != 0)
 				{
 					startpos = endpos + sizeof(newline) - 1;
 					continue; // Incorrect header.
-- 
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