The Quake sources as originally release under the GPL license on December 21, 1999

QW/server/sys.h

@@ -0,0 +1,35 @@
+/*
+Copyright (C) 1996-1997 Id Software, Inc.
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
+
+See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+// sys.h -- non-portable functions
+
+int	Sys_FileTime (char *path);
+
+void Sys_mkdir (char *path);
+
+void Sys_Error (char *error, ...);
+// an error will cause the entire program to exit
+
+void Sys_Printf (char *fmt, ...);
+// send text to the console
+
+void Sys_Quit (void);
+double Sys_DoubleTime (void);
+char *Sys_ConsoleInput (void);
+void Sys_Init (void);