From 794b4a2483053c09229d51cf074b877631a4fe52 Mon Sep 17 00:00:00 2001
From: Shivaram Lingamneni <slingamn@cs.stanford.edu>
Date: Wed, 29 May 2024 01:54:12 -0400
Subject: [PATCH] allow null bytes in bearer tokens

(Haven't decided what to do at the spec level yet)
---
 irc/handlers.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/irc/handlers.go b/irc/handlers.go
index 7aaad37c..8b4cd9a1 100644
--- a/irc/handlers.go
+++ b/irc/handlers.go
@@ -311,7 +311,7 @@ func authIRCv3BearerHandler(server *Server, client *Client, session *Session, va
 	defer session.sasl.Clear()
 
 	// <authzid> \x00 <type> \x00 <token>
-	splitValue := bytes.Split(value, []byte{'\000'})
+	splitValue := bytes.SplitN(value, []byte{'\000'}, 3)
 	if len(splitValue) != 3 {
 		rb.Add(nil, server.name, ERR_SASLFAIL, client.Nick(), client.t("SASL authentication failed: Invalid auth blob"))
 		return false