fix legal problems with md4

source/Makefile

@@ -45,11 +45,12 @@ EXE_sources=\
   cvar.c \
   mathlib.c \
   math.S \
-  md4.c \
+  mdfour.c \
   zone.c \
   pmove.c \
   pmovetst.c \
   net_chan.c \
+  net_com.c \
   net_udp.c 
 
 

source/mdfour.h

@@ -0,0 +1,48 @@
+/*
+	mdfour.h
+
+	an implementation of MD4 designed for use in the SMB authentication
+	protocol
+
+	Copyright (C) Andrew Tridgell 1997-1998
+
+	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:
+
+		Free Software Foundation, Inc.
+		59 Temple Place - Suite 330
+		Boston, MA  02111-1307, USA
+
+	$Id$
+*/
+
+#ifndef _UINT32_H
+#include	<uint32.h>
+#endif
+
+#ifndef _MDFOUR_H
+#define _MDFOUR_H
+
+struct mdfour {
+	uint32 A, B, C, D;
+	uint32 totalN;
+};
+
+void mdfour_begin(struct mdfour *md); // old: MD4Init
+void mdfour_update(struct mdfour *md, unsigned char *in, int n); //old: MD4Update
+void mdfour_result(struct mdfour *md, unsigned char *out); // old: MD4Final
+void mdfour(unsigned char *out, unsigned char *in, int n);
+
+#endif	// _MDFOUR_H
+

source/net_com.c

@@ -0,0 +1,50 @@
+/*
+	net_com.c
+	
+	MD4-based checksum utility functions
+
+	Copyright (C) 1999,2000  contributors of the QuakeForge project
+	Please see the file "AUTHORS" for a list of contributors
+
+	Author: Jeff Teunissen	<d2deek@pmail.net>
+	Date: 01 Jan 2000
+
+	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:
+
+		Free Software Foundation, Inc.
+		59 Temple Place - Suite 330
+		Boston, MA  02111-1307, USA
+
+	$Id$
+*/
+
+#include <mdfour.h>
+
+unsigned Com_BlockChecksum (void *buffer, int length)
+{
+	int				digest[4];
+	unsigned 		val;
+
+	mdfour ( (unsigned char *) digest, (unsigned char *) buffer, length );
+
+	val = digest[0] ^ digest[1] ^ digest[2] ^ digest[3];
+
+	return val;
+}
+
+void Com_BlockFullChecksum (void *buffer, int len, unsigned char *outbuf)
+{
+	mdfour ( outbuf, (unsigned char *) buffer, len );
+}

source/uint32.h

@@ -0,0 +1,54 @@
+/*
+	uint32.h
+
+	Definitions for portable (?) unsigned int
+
+	Copyright (C) 1999,2000  contributors of the QuakeForge project
+	Please see the file "AUTHORS" for a list of contributors
+
+	Author: Jeff Teunissen	<d2deek@pmail.net>
+	Date: 01 Jan 2000
+
+	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:
+
+		Free Software Foundation, Inc.
+		59 Temple Place - Suite 330
+		Boston, MA  02111-1307, USA
+
+	$Id$
+*/
+
+#ifndef _UINT32_H
+#define _UINT32_H
+
+#ifndef int32
+#if (SIZEOF_INT == 4)
+#define int32 int
+#elif (SIZEOF_LONG == 4)
+#define int32 long
+#elif (SIZEOF_SHORT == 4)
+#define int32 short
+#else
+/* I hope this works */
+#define int32 int
+#define LARGE_INT32
+#endif
+#endif
+
+#ifndef uint32
+#define uint32 unsigned int32
+#endif
+
+#endif	// _UINT32_H