From 20eaf1a276fcf4dab6c144ed9486d7def01217fd Mon Sep 17 00:00:00 2001
From: Robin Burchell <robin+git@viroteck.net>
Date: Wed, 18 Apr 2012 16:06:58 +0200
Subject: [PATCH] Log mode errors when processing FJOIN.

---
 src/modules/m_spanningtree/fjoin.cpp | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/modules/m_spanningtree/fjoin.cpp b/src/modules/m_spanningtree/fjoin.cpp
index 8846b2fbc..7b4fa06bd 100644
--- a/src/modules/m_spanningtree/fjoin.cpp
+++ b/src/modules/m_spanningtree/fjoin.cpp
@@ -134,11 +134,13 @@ CmdResult CommandFJoin::Handle(const std::vector<std::string>& params, User *src
 			while ((*unparsedmodes) && (*unparsedmodes != ','))
 			{
 				ModeHandler *mh = ServerInstance->Modes->FindMode(*unparsedmodes, MODETYPE_CHANNEL);
-				if (mh)
-					modes += *unparsedmodes;
-				else
+				if (!mh)
+				{
+					ServerInstance->Logs->Log("m_spanningtree", SPARSE, "Unrecognised mode %c, dropping link", *unparsedmodes);
 					return CMD_INVALID;
+				}
 
+				modes += *unparsedmodes;
 				usr++;
 				unparsedmodes++;
 			}
-- 
2.39.5