1 files changed, 64 insertions, 0 deletions
diff --git a/src/modes/cmode_l.cpp b/src/modes/cmode_l.cpp
new file mode 100644
index 000000000..185cbdedb
--- /dev/null
+++ b/src/modes/cmode_l.cpp
@@ -0,0 +1,64 @@
+#include "inspircd.h"
+#include "mode.h"
+#include "channels.h"
+#include "users.h"
+#include "modes/cmode_l.h"
+
+ModeChannelLimit::ModeChannelLimit() : ModeHandler('l', 1, 0, false, MODETYPE_CHANNEL, false)
+{
+}
+
+ModeAction ModeChannelLimit::OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding)
+{
+	if (adding)
+	{
+		/* Setting a new limit, sanity check */
+		long limit = atoi(parameter.c_str());
+
+		/* Wrap low values at 32768 */
+		if (limit < 0)
+			limit = 0x7FFF;
+
+		/* If the new limit is the same as the old limit,
+		 * and the old limit isnt 0, disallow */
+		if ((limit == channel->limit) && (channel->limit > 0))
+		{
+			parameter = "";
+			return MODEACTION_DENY;
+		}
+
+		/* They must have specified an invalid number.
+		 * Dont allow +l 0.
+		 */
+		if (!limit)
+		{
+			parameter = "";
+			return MODEACTION_DENY;
+		}
+
+		/* Set new limit */
+		channel->limit = limit;
+		channel->modes[CM_LIMIT] = 1;
+
+		return MODEACTION_ALLOW;
+	}
+	else
+	{
+		/* Check if theres a limit here to remove.
+		 * If there isnt, dont allow the -l
+		 */
+		if (!channel->limit)
+		{
+			parameter = "";
+			return MODEACTION_DENY;
+		}
+
+		/* Removing old limit, no checks here */
+		channel->limit = 0;
+		channel->modes[CM_LIMIT] = 0;
+
+		return MODEACTION_ALLOW;
+	}
+
+	return MODEACTION_DENY;
+}