Throw an exception if ModeParser::AddMode() fails

2 files changed, 7 insertions, 9 deletions

diff --git a/src/mode.cpp b/src/mode.cpp
index ef18663b9..b56c26990 100644
--- a/src/mode.cpp
+++ b/src/mode.cpp
@@ -619,14 +619,14 @@ ModeHandler::Id ModeParser::AllocateModeId(ModeType mt)
 	throw ModuleException("Out of ModeIds");
 }
 
-bool ModeParser::AddMode(ModeHandler* mh)
+void ModeParser::AddMode(ModeHandler* mh)
 {
 	/* Yes, i know, this might let people declare modes like '_' or '^'.
 	 * If they do that, thats their problem, and if i ever EVER see an
 	 * official InspIRCd developer do that, i'll beat them with a paddle!
 	 */
 	if ((mh->GetModeChar() < 'A') || (mh->GetModeChar() > 'z'))
-		return false;
+		throw ModuleException("Invalid letter for mode " + mh->name);
 
 	/* A mode prefix of ',' is not acceptable, it would fuck up server to server.
 	 * A mode prefix of ':' will fuck up both server to server, and client to server.
@@ -636,15 +636,15 @@ bool ModeParser::AddMode(ModeHandler* mh)
 	if (pm)
 	{
 		if ((pm->GetPrefix() > 126) || (pm->GetPrefix() == ',') || (pm->GetPrefix() == ':') || (pm->GetPrefix() == '#'))
-			return false;
+			throw ModuleException("Invalid prefix for mode " + mh->name);
 
 		if (FindPrefix(pm->GetPrefix()))
-			return false;
+			throw ModuleException("Prefix already exists for mode " + mh->name);
 	}
 
 	ModeHandler*& slot = modehandlers[mh->GetModeType()][mh->GetModeChar()-65];
 	if (slot)
-		return false;
+		throw ModuleException("Letter is already in use for mode " + mh->name);
 
 	// The mode needs an id if it is either a user mode, a simple mode (flag) or a parameter mode.
 	// Otherwise (for listmodes and prefix modes) the id remains MODEID_MAX, which is invalid.
@@ -653,7 +653,7 @@ bool ModeParser::AddMode(ModeHandler* mh)
 		modeid = AllocateModeId(mh->GetModeType());
 
 	if (!modehandlersbyname[mh->GetModeType()].insert(std::make_pair(mh->name, mh)).second)
-		return false;
+		throw ModuleException("Mode name already in use: " + mh->name);
 
 	// Everything is fine, add the mode
 
@@ -671,7 +671,6 @@ bool ModeParser::AddMode(ModeHandler* mh)
 		mhlist.list.push_back(mh->IsListModeBase());
 
 	RecreateModeListFor004Numeric();
-	return true;
 }
 
 bool ModeParser::DelMode(ModeHandler* mh)
diff --git a/src/modules.cpp b/src/modules.cpp
index 88d89a35b..3723b09c3 100644
--- a/src/modules.cpp
+++ b/src/modules.cpp
@@ -594,8 +594,7 @@ void ModuleManager::AddService(ServiceProvider& item)
 		case SERVICE_MODE:
 		{
 			ModeHandler* mh = static_cast<ModeHandler*>(&item);
-			if (!ServerInstance->Modes->AddMode(mh))
-				throw ModuleException("Mode "+std::string(item.name)+" already exists.");
+			ServerInstance->Modes->AddMode(mh);
 			DataProviders.insert(std::make_pair((mh->GetModeType() == MODETYPE_CHANNEL ? "mode/" : "umode/") + item.name, &item));
 			dynamic_reference_base::reset_all();
 			return;