If we get an unknown prefix character on a user when they join, we throw a fit and close the connection

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@5004 e03df62e-2008-0410-955e-edbf42e46eb7

1 files changed, 6 insertions, 0 deletions

diff --git a/src/modules/m_spanningtree.cpp b/src/modules/m_spanningtree.cpp
index 1485c709a..8b059e297 100644
--- a/src/modules/m_spanningtree.cpp
+++ b/src/modules/m_spanningtree.cpp
@@ -1401,6 +1401,12 @@ class TreeSocket : public InspSocket
 						mode_users[modectr++] = usr;
 						charlcat(modestring,mh->GetModeChar(),MAXBUF);
 					}
+					else
+					{
+						this->Instance->WriteOpers("ERROR: We received a user with an unknown prefix '%c'. Closed connection to avoid a desync.",mh->GetPrefix());
+						this->WriteLine(std::string("ERROR :What?! You sent me a mode prefix i cant handle ('")+mh->GetModeChar()+"'). Closing connection to avoid desync.");
+						return false;
+					}
 					usr++;
 					permissions++;
 				}