The original Quake 2 sources as originally released under the GPL license on December 21, 2001.

null/cl_null.c

@@ -0,0 +1,55 @@
+
+// cl_null.c -- this file can stub out the entire client system
+// for pure dedicated servers
+
+#include "../qcommon/qcommon.h"
+
+void Key_Bind_Null_f(void)
+{
+}
+
+void CL_Init (void)
+{
+}
+
+void CL_Drop (void)
+{
+}
+
+void CL_Shutdown (void)
+{
+}
+
+void CL_Frame (int msec)
+{
+}
+
+void Con_Print (char *text)
+{
+}
+
+void Cmd_ForwardToServer (void)
+{
+	char *cmd;
+
+	cmd = Cmd_Argv(0);
+	Com_Printf ("Unknown command \"%s\"\n", cmd);
+}
+
+void SCR_DebugGraph (float value, int color)
+{
+}
+
+void SCR_BeginLoadingPlaque (void)
+{
+}
+
+void SCR_EndLoadingPlaque (void)
+{
+}
+
+void Key_Init (void)
+{
+	Cmd_AddCommand ("bind", Key_Bind_Null_f);
+}
+