r499 - in trunk: . code/qcommon

DONOTREPLY at icculus.org DONOTREPLY at icculus.org
Tue Jan 17 20:20:43 EST 2006


Author: tma
Date: 2006-01-17 20:20:42 -0500 (Tue, 17 Jan 2006)
New Revision: 499

Modified:
   trunk/code/qcommon/md4.c
   trunk/code/qcommon/qcommon.h
   trunk/id-readme.txt
Log:
* GPL MD4 implementation
* Removed obsolete compilation instructions from the id readme
* Removed MD4 license from the id readme


Modified: trunk/code/qcommon/md4.c
===================================================================
--- trunk/code/qcommon/md4.c	2006-01-17 22:38:09 UTC (rev 498)
+++ trunk/code/qcommon/md4.c	2006-01-18 01:20:42 UTC (rev 499)
@@ -1,292 +1,238 @@
-/* GLOBAL.H - RSAREF types and constants */
+/* 
+ * Cryptographic API.
+ *
+ * MD4 Message Digest Algorithm (RFC1320).
+ *
+ * Implementation derived from Andrew Tridgell and Steve French's
+ * CIFS MD4 implementation, and the cryptoapi implementation
+ * originally based on the public domain implementation written
+ * by Colin Plumb in 1993.
+ *
+ * Copyright (c) Andrew Tridgell 1997-1998.
+ * Modified by Steve French (sfrench at us.ibm.com) 2002
+ * Copyright (c) Cryptoapi developers.
+ * Copyright (c) 2002 David S. Miller (davem at redhat.com)
+ * Copyright (c) 2002 James Morris <jmorris at intercode.com.au>
+ *
+ * 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.
+ *
+ */
 
-#include <string.h>
-#ifdef _MSC_VER
-#pragma warning(disable : 4711)		// selected for automatic inline expansion
-#endif
+#include "q_shared.h"
+#include "qcommon.h"
+typedef unsigned int u32;
 
-/* POINTER defines a generic pointer type */
-typedef unsigned char *POINTER;
+#define MD4_DIGEST_SIZE		16
+#define MD4_HMAC_BLOCK_SIZE	64
+#define MD4_BLOCK_WORDS		16
+#define MD4_HASH_WORDS		4
 
-/* UINT2 defines a two byte word */
-typedef unsigned short int UINT2;
-
-/* UINT4 defines a four byte word */
-typedef unsigned int UINT4;
-
-  
-/* MD4.H - header file for MD4C.C */
-
-/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. 
-
-All rights reserved.
-  
-License to copy and use this software is granted provided that it is identified as the “RSA Data Security, Inc. MD4 Message-Digest Algorithm” in all material mentioning or referencing this software or this function.
-License is also granted to make and use derivative works provided that such works are identified as “derived from the RSA Data Security, Inc. MD4 Message-Digest Algorithm” in all material mentioning or referencing the derived work.
-RSA Data Security, Inc. makes no representations concerning either the merchantability of this software or the suitability of this software for any particular purpose. It is provided “as is” without express or implied warranty of any kind.
-  
-These notices must be retained in any copies of any part of this documentation and/or software. */
-
-/* MD4 context. */
-typedef struct {
-	UINT4 state[4];				/* state (ABCD) */
-	UINT4 count[2];				/* number of bits, modulo 2^64 (lsb first) */
-	unsigned char buffer[64]; 			/* input buffer */
-} MD4_CTX;
-
-void MD4Init (MD4_CTX *);
-void MD4Update (MD4_CTX *, const unsigned char *, unsigned int);
-void MD4Final (unsigned char [16], MD4_CTX *);
-
-#define Com_Memset memset
-#define Com_Memcpy memcpy
-
-/* MD4C.C - RSA Data Security, Inc., MD4 message-digest algorithm */
-/* Copyright (C) 1990-2, RSA Data Security, Inc. All rights reserved.
-  
-License to copy and use this software is granted provided that it is identified as the
-RSA Data Security, Inc. MD4 Message-Digest Algorithm
- in all material mentioning or referencing this software or this function.
-License is also granted to make and use derivative works provided that such works are identified as 
-derived from the RSA Data Security, Inc. MD4 Message-Digest Algorithm
-in all material mentioning or referencing the derived work.
-RSA Data Security, Inc. makes no representations concerning either the merchantability of this software or the suitability of this software for any particular purpose. It is provided
-as is without express or implied warranty of any kind.
-  
-These notices must be retained in any copies of any part of this documentation and/or software. */
-
-/* Constants for MD4Transform routine.  */
-#define S11 3
-#define S12 7
-#define S13 11
-#define S14 19
-#define S21 3
-#define S22 5
-#define S23 9
-#define S24 13
-#define S31 3
-#define S32 9
-#define S33 11
-#define S34 15
-
-static void MD4Transform (UINT4 [4], const unsigned char [64]);
-static void Encode (unsigned char *, UINT4 *, unsigned int);
-static void Decode (UINT4 *, const unsigned char *, unsigned int);
-
-static unsigned char PADDING[64] = {
-0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+struct md4_ctx {
+	u32 hash[MD4_HASH_WORDS];
+	u32 block[MD4_BLOCK_WORDS];
+	u32 byte_count;
 };
 
-/* F, G and H are basic MD4 functions. */
-#define F(x, y, z) (((x) & (y)) | ((~x) & (z)))
-#define G(x, y, z) (((x) & (y)) | ((x) & (z)) | ((y) & (z)))
-#define H(x, y, z) ((x) ^ (y) ^ (z))
+static ID_INLINE u32 lshift(u32 x, unsigned int s)
+{
+	x &= 0xFFFFFFFF;
+	return ((x << s) & 0xFFFFFFFF) | (x >> (32 - s));
+}
 
-/* ROTATE_LEFT rotates x left n bits. */
-#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
+static ID_INLINE u32 F(u32 x, u32 y, u32 z)
+{
+	return (x & y) | ((~x) & z);
+}
 
-/* FF, GG and HH are transformations for rounds 1, 2 and 3 */
-/* Rotation is separate from addition to prevent recomputation */
-#define FF(a, b, c, d, x, s) {(a) += F ((b), (c), (d)) + (x); (a) = ROTATE_LEFT ((a), (s));}
+static ID_INLINE u32 G(u32 x, u32 y, u32 z)
+{
+	return (x & y) | (x & z) | (y & z);
+}
 
-#define GG(a, b, c, d, x, s) {(a) += G ((b), (c), (d)) + (x) + (UINT4)0x5a827999; (a) = ROTATE_LEFT ((a), (s));}
-
-#define HH(a, b, c, d, x, s) {(a) += H ((b), (c), (d)) + (x) + (UINT4)0x6ed9eba1; (a) = ROTATE_LEFT ((a), (s));}
-
-
-/* MD4 initialization. Begins an MD4 operation, writing a new context. */
-void MD4Init (MD4_CTX *context)
+static ID_INLINE u32 H(u32 x, u32 y, u32 z)
 {
-	context->count[0] = context->count[1] = 0;
+	return x ^ y ^ z;
+}
+                        
+#define ROUND1(a,b,c,d,k,s) (a = lshift(a + F(b,c,d) + k, s))
+#define ROUND2(a,b,c,d,k,s) (a = lshift(a + G(b,c,d) + k + (u32)0x5A827999,s))
+#define ROUND3(a,b,c,d,k,s) (a = lshift(a + H(b,c,d) + k + (u32)0x6ED9EBA1,s))
 
-/* Load magic initialization constants.*/
-context->state[0] = 0x67452301;
-context->state[1] = 0xefcdab89;
-context->state[2] = 0x98badcfe;
-context->state[3] = 0x10325476;
+static ID_INLINE void LittleLongArray(u32 *buf, unsigned int words)
+{
+	while (words--) {
+		*buf = LittleLong(*buf);
+		buf++;
+	}
 }
 
-/* MD4 block update operation. Continues an MD4 message-digest operation, processing another message block, and updating the context. */
-void MD4Update (MD4_CTX *context, const unsigned char *input, unsigned int inputLen)
+static void md4_transform(u32 *hash, u32 const *in)
 {
-	unsigned int i, index, partLen;
+	u32 a, b, c, d;
 
-	/* Compute number of bytes mod 64 */
-	index = (unsigned int)((context->count[0] >> 3) & 0x3F);
+	a = hash[0];
+	b = hash[1];
+	c = hash[2];
+	d = hash[3];
 
-	/* Update number of bits */
-	if ((context->count[0] += ((UINT4)inputLen << 3))< ((UINT4)inputLen << 3))
-		context->count[1]++;
+	ROUND1(a, b, c, d, in[0], 3);
+	ROUND1(d, a, b, c, in[1], 7);
+	ROUND1(c, d, a, b, in[2], 11);
+	ROUND1(b, c, d, a, in[3], 19);
+	ROUND1(a, b, c, d, in[4], 3);
+	ROUND1(d, a, b, c, in[5], 7);
+	ROUND1(c, d, a, b, in[6], 11);
+	ROUND1(b, c, d, a, in[7], 19);
+	ROUND1(a, b, c, d, in[8], 3);
+	ROUND1(d, a, b, c, in[9], 7);
+	ROUND1(c, d, a, b, in[10], 11);
+	ROUND1(b, c, d, a, in[11], 19);
+	ROUND1(a, b, c, d, in[12], 3);
+	ROUND1(d, a, b, c, in[13], 7);
+	ROUND1(c, d, a, b, in[14], 11);
+	ROUND1(b, c, d, a, in[15], 19);
 
-	context->count[1] += ((UINT4)inputLen >> 29);
+	ROUND2(a, b, c, d,in[ 0], 3);
+	ROUND2(d, a, b, c, in[4], 5);
+	ROUND2(c, d, a, b, in[8], 9);
+	ROUND2(b, c, d, a, in[12], 13);
+	ROUND2(a, b, c, d, in[1], 3);
+	ROUND2(d, a, b, c, in[5], 5);
+	ROUND2(c, d, a, b, in[9], 9);
+	ROUND2(b, c, d, a, in[13], 13);
+	ROUND2(a, b, c, d, in[2], 3);
+	ROUND2(d, a, b, c, in[6], 5);
+	ROUND2(c, d, a, b, in[10], 9);
+	ROUND2(b, c, d, a, in[14], 13);
+	ROUND2(a, b, c, d, in[3], 3);
+	ROUND2(d, a, b, c, in[7], 5);
+	ROUND2(c, d, a, b, in[11], 9);
+	ROUND2(b, c, d, a, in[15], 13);
 
-	partLen = 64 - index;
+	ROUND3(a, b, c, d,in[ 0], 3);
+	ROUND3(d, a, b, c, in[8], 9);
+	ROUND3(c, d, a, b, in[4], 11);
+	ROUND3(b, c, d, a, in[12], 15);
+	ROUND3(a, b, c, d, in[2], 3);
+	ROUND3(d, a, b, c, in[10], 9);
+	ROUND3(c, d, a, b, in[6], 11);
+	ROUND3(b, c, d, a, in[14], 15);
+	ROUND3(a, b, c, d, in[1], 3);
+	ROUND3(d, a, b, c, in[9], 9);
+	ROUND3(c, d, a, b, in[5], 11);
+	ROUND3(b, c, d, a, in[13], 15);
+	ROUND3(a, b, c, d, in[3], 3);
+	ROUND3(d, a, b, c, in[11], 9);
+	ROUND3(c, d, a, b, in[7], 11);
+	ROUND3(b, c, d, a, in[15], 15);
 
-	/* Transform as many times as possible.*/
-	if (inputLen >= partLen)
-	{
- 		Com_Memcpy((POINTER)&context->buffer[index], (POINTER)input, partLen);
- 		MD4Transform (context->state, context->buffer);
+	hash[0] += a;
+	hash[1] += b;
+	hash[2] += c;
+	hash[3] += d;
+}
 
- 		for (i = partLen; i + 63 < inputLen; i += 64)
- 			MD4Transform (context->state, &input[i]);
-
- 		index = 0;
-	}
-	else
- 		i = 0;
-
-	/* Buffer remaining input */
-	Com_Memcpy ((POINTER)&context->buffer[index], (POINTER)&input[i], inputLen-i);
+static ID_INLINE void md4_transform_helper(struct md4_ctx *ctx)
+{
+	LittleLongArray(ctx->block, sizeof(ctx->block) / 4);
+	md4_transform(ctx->hash, ctx->block);
 }
 
-
-/* MD4 finalization. Ends an MD4 message-digest operation, writing the the message digest and zeroizing the context. */
-void MD4Final (unsigned char digest[16], MD4_CTX *context)
+static void md4_init(void *ctx)
 {
-	unsigned char bits[8];
-	unsigned int index, padLen;
+	struct md4_ctx *mctx = ctx;
 
-	/* Save number of bits */
-	Encode (bits, context->count, 8);
-
-	/* Pad out to 56 mod 64.*/
-	index = (unsigned int)((context->count[0] >> 3) & 0x3f);
-	padLen = (index < 56) ? (56 - index) : (120 - index);
-	MD4Update (context, PADDING, padLen);
-
-	/* Append length (before padding) */
-	MD4Update (context, bits, 8);
-	
-	/* Store state in digest */
-	Encode (digest, context->state, 16);
-
-	/* Zeroize sensitive information.*/
-	Com_Memset ((POINTER)context, 0, sizeof (*context));
+	mctx->hash[0] = 0x67452301;
+	mctx->hash[1] = 0xefcdab89;
+	mctx->hash[2] = 0x98badcfe;
+	mctx->hash[3] = 0x10325476;
+	mctx->byte_count = 0;
 }
 
-
-/* MD4 basic transformation. Transforms state based on block. */
-static void MD4Transform (UINT4 state[4], const unsigned char block[64])
+static void md4_update(void *ctx, const byte *data, unsigned int len)
 {
-	UINT4 a = state[0], b = state[1], c = state[2], d = state[3], x[16];
+	struct md4_ctx *mctx = ctx;
+	const u32 avail = sizeof(mctx->block) - (mctx->byte_count & 0x3f);
 
-	Decode (x, block, 64);
+	mctx->byte_count += len;
 
-/* Round 1 */
-FF (a, b, c, d, x[ 0], S11); 				/* 1 */
-FF (d, a, b, c, x[ 1], S12); 				/* 2 */
-FF (c, d, a, b, x[ 2], S13); 				/* 3 */
-FF (b, c, d, a, x[ 3], S14); 				/* 4 */
-FF (a, b, c, d, x[ 4], S11); 				/* 5 */
-FF (d, a, b, c, x[ 5], S12); 				/* 6 */
-FF (c, d, a, b, x[ 6], S13); 				/* 7 */
-FF (b, c, d, a, x[ 7], S14); 				/* 8 */
-FF (a, b, c, d, x[ 8], S11); 				/* 9 */
-FF (d, a, b, c, x[ 9], S12); 				/* 10 */
-FF (c, d, a, b, x[10], S13); 			/* 11 */
-FF (b, c, d, a, x[11], S14); 			/* 12 */
-FF (a, b, c, d, x[12], S11); 			/* 13 */
-FF (d, a, b, c, x[13], S12); 			/* 14 */
-FF (c, d, a, b, x[14], S13); 			/* 15 */
-FF (b, c, d, a, x[15], S14); 			/* 16 */
+	if (avail > len) {
+		Com_Memcpy((char *)mctx->block + (sizeof(mctx->block) - avail),
+		       data, len);
+		return;
+	}
 
-/* Round 2 */
-GG (a, b, c, d, x[ 0], S21); 			/* 17 */
-GG (d, a, b, c, x[ 4], S22); 			/* 18 */
-GG (c, d, a, b, x[ 8], S23); 			/* 19 */
-GG (b, c, d, a, x[12], S24); 			/* 20 */
-GG (a, b, c, d, x[ 1], S21); 			/* 21 */
-GG (d, a, b, c, x[ 5], S22); 			/* 22 */
-GG (c, d, a, b, x[ 9], S23); 			/* 23 */
-GG (b, c, d, a, x[13], S24); 			/* 24 */
-GG (a, b, c, d, x[ 2], S21); 			/* 25 */
-GG (d, a, b, c, x[ 6], S22); 			/* 26 */
-GG (c, d, a, b, x[10], S23); 			/* 27 */
-GG (b, c, d, a, x[14], S24); 			/* 28 */
-GG (a, b, c, d, x[ 3], S21); 			/* 29 */
-GG (d, a, b, c, x[ 7], S22); 			/* 30 */
-GG (c, d, a, b, x[11], S23); 			/* 31 */
-GG (b, c, d, a, x[15], S24); 			/* 32 */
+	Com_Memcpy((char *)mctx->block + (sizeof(mctx->block) - avail),
+	       data, avail);
 
-/* Round 3 */
-HH (a, b, c, d, x[ 0], S31);				/* 33 */
-HH (d, a, b, c, x[ 8], S32); 			/* 34 */
-HH (c, d, a, b, x[ 4], S33); 			/* 35 */
-HH (b, c, d, a, x[12], S34); 			/* 36 */
-HH (a, b, c, d, x[ 2], S31); 			/* 37 */
-HH (d, a, b, c, x[10], S32); 			/* 38 */
-HH (c, d, a, b, x[ 6], S33); 			/* 39 */
-HH (b, c, d, a, x[14], S34); 			/* 40 */
-HH (a, b, c, d, x[ 1], S31); 			/* 41 */
-HH (d, a, b, c, x[ 9], S32); 			/* 42 */
-HH (c, d, a, b, x[ 5], S33); 			/* 43 */
-HH (b, c, d, a, x[13], S34); 			/* 44 */
-HH (a, b, c, d, x[ 3], S31); 			/* 45 */
-HH (d, a, b, c, x[11], S32); 			/* 46 */
-HH (c, d, a, b, x[ 7], S33); 			/* 47 */
-HH (b, c, d, a, x[15], S34);			/* 48 */
+	md4_transform_helper(mctx);
+	data += avail;
+	len -= avail;
 
-state[0] += a;
-state[1] += b;
-state[2] += c;
-state[3] += d;
+	while (len >= sizeof(mctx->block)) {
+		Com_Memcpy(mctx->block, data, sizeof(mctx->block));
+		md4_transform_helper(mctx);
+		data += sizeof(mctx->block);
+		len -= sizeof(mctx->block);
+	}
 
-	/* Zeroize sensitive information.*/
-	Com_Memset ((POINTER)x, 0, sizeof (x));
+	Com_Memcpy(mctx->block, data, len);
 }
 
-
-/* Encodes input (UINT4) into output (unsigned char). Assumes len is a multiple of 4. */
-static void Encode (unsigned char *output, UINT4 *input, unsigned int len)
+static void md4_final(void *ctx, byte *out)
 {
-	unsigned int i, j;
+	struct md4_ctx *mctx = ctx;
+	const unsigned int offset = mctx->byte_count & 0x3f;
+	char *p = (char *)mctx->block + offset;
+	int padding = 56 - (offset + 1);
 
-	for (i = 0, j = 0; j < len; i++, j += 4) {
- 		output[j] = (unsigned char)(input[i] & 0xff);
- 		output[j+1] = (unsigned char)((input[i] >> 8) & 0xff);
- 		output[j+2] = (unsigned char)((input[i] >> 16) & 0xff);
- 		output[j+3] = (unsigned char)((input[i] >> 24) & 0xff);
+	*p++ = 0x80;
+	if (padding < 0) {
+		Com_Memset(p, 0x00, padding + 8);
+		md4_transform_helper(mctx);
+		p = (char *)mctx->block;
+		padding = 56;
 	}
-}
 
-
-/* Decodes input (unsigned char) into output (UINT4). Assumes len is a multiple of 4. */
-static void Decode (UINT4 *output, const unsigned char *input, unsigned int len)
-{
-unsigned int i, j;
-
-for (i = 0, j = 0; j < len; i++, j += 4)
- 	output[i] = ((UINT4)input[j]) | (((UINT4)input[j+1]) << 8) | (((UINT4)input[j+2]) << 16) | (((UINT4)input[j+3]) << 24);
+	Com_Memset(p, 0, padding);
+	mctx->block[14] = mctx->byte_count << 3;
+	mctx->block[15] = mctx->byte_count >> 29;
+	LittleLongArray(mctx->block, (sizeof(mctx->block) - 8) / 4);
+	md4_transform(mctx->hash, mctx->block);
+	Com_Memcpy(out, mctx->hash, sizeof(mctx->hash));
+	Com_Memset(mctx, 0, sizeof(*mctx));
 }
 
 //===================================================================
 
-unsigned Com_BlockChecksum (void *buffer, int length)
+unsigned Com_BlockChecksum( const void *buffer, int length )
 {
-	int			digest[4];
-	unsigned	val;
-	MD4_CTX		ctx;
+	int							digest[4];
+	unsigned				val;
+	struct md4_ctx	ctx;
 
-	MD4Init (&ctx);
-	MD4Update (&ctx, (unsigned char *)buffer, length);
-	MD4Final ( (unsigned char *)digest, &ctx);
+	md4_init( &ctx );
+	md4_update( &ctx, (byte *)buffer, length );
+	md4_final( &ctx, (byte *)digest );
 	
 	val = digest[0] ^ digest[1] ^ digest[2] ^ digest[3];
 
 	return val;
 }
 
-unsigned Com_BlockChecksumKey (void *buffer, int length, int key)
+unsigned Com_BlockChecksumKey( const void *buffer, int length, int key )
 {
-	int			digest[4];
-	unsigned	val;
-	MD4_CTX		ctx;
+	int							digest[4];
+	unsigned				val;
+	struct md4_ctx	ctx;
 
-	MD4Init (&ctx);
-	MD4Update (&ctx, (unsigned char *)&key, 4);
-	MD4Update (&ctx, (unsigned char *)buffer, length);
-	MD4Final ( (unsigned char *)digest, &ctx);
+	md4_init( &ctx );
+	md4_update( &ctx, (byte *)&key, 4 );
+	md4_update( &ctx, (byte *)buffer, length );
+	md4_final( &ctx, (byte *)digest );
 	
 	val = digest[0] ^ digest[1] ^ digest[2] ^ digest[3];
 

Modified: trunk/code/qcommon/qcommon.h
===================================================================
--- trunk/code/qcommon/qcommon.h	2006-01-17 22:38:09 UTC (rev 498)
+++ trunk/code/qcommon/qcommon.h	2006-01-18 01:20:42 UTC (rev 499)
@@ -726,7 +726,7 @@
 int			Com_EventLoop( void );
 int			Com_Milliseconds( void );	// will be journaled properly
 unsigned	Com_BlockChecksum( const void *buffer, int length );
-unsigned	Com_BlockChecksumKey (void *buffer, int length, int key);
+unsigned	Com_BlockChecksumKey ( const void *buffer, int length, int key);
 int			Com_HashKey(char *string, int maxlen);
 int			Com_Filter(char *filter, char *name, int casesensitive);
 int			Com_FilterPath(char *filter, char *name, int casesensitive);

Modified: trunk/id-readme.txt
===================================================================
--- trunk/id-readme.txt	2006-01-17 22:38:09 UTC (rev 498)
+++ trunk/id-readme.txt	2006-01-18 01:20:42 UTC (rev 499)
@@ -5,9 +5,6 @@
 
 LICENSE
 GENERAL NOTES
-COMPILING ON WIN32
-COMPILING ON GNU/LINUX
-COMPILING ON MAC
 
 LICENSE
 =======
@@ -40,26 +37,6 @@
      misrepresented as being the original software.
   3. This notice may not be removed or altered from any source distribution.
 
-MD4 Message-Digest Algorithm
------------------------------------------------------------------------------
-lines	file(s)
-299		code/qcommon/md4.c
-277		common/md4.c
-Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All rights reserved.
-
-License to copy and use this software is granted provided that it is identified 
-as the <93>RSA Data Security, Inc. MD4 Message-Digest Algorithm<94> in all mater
-ial mentioning or referencing this software or this function.
-License is also granted to make and use derivative works provided that such work
-s are identified as <93>derived from the RSA Data Security, Inc. MD4 Message-Dig
-est Algorithm<94> in all material mentioning or referencing the derived work.
-RSA Data Security, Inc. makes no representations concerning either the merchanta
-bility of this software or the suitability of this software for any particular p
-urpose. It is provided <93>as is<94> without express or implied warranty of any 
-kind.
-
-checksums are used to validate pak files
-
 standard C library replacement routines
 -----------------------------------------------------------------------------
 lines	file(s)
@@ -163,31 +140,10 @@
 q3map/					map compiler ( .map -> .bsp ) - this is the version that comes with Q3Radiant 200f
 q3radiant/				Q3Radiant map editor build 200f ( common/ and libs/ are support dirs for radiant )
 
-While we made sure we were still able to compile the game on Windows, GNU/Linux and Mac, this build didn't get any kind of extensive testing so it may not work completely right. Whenever an id game is released under GPL, several projects start making the source code more friendly to nowaday's compilers and environements. If you are picking up this release weeks/months/years after we uploaded it, you probably want to look around on the net for cleaned up versions of this codebase as well.
-
-COMPILING ON WIN32
-==================
-
-VC7 / Visual C++ 2003 project files are provided:
-code/quake3.sln
-q3radiant/Radiant.sln
-
-To compile the qvms, you need to run some batch files:
-you will need to have lcc.exe q3cpp.exe q3rcc.exe and q3asm.exe in your path
-( some precompiled binaries are provided in lcc/bin and code/win32/mod-sdk-setup/bin )
-the qvm batch files are in code/game code/cgame code/q3_ui code/ui ..
-
-COMPILING ON GNU/LINUX
-==================
-
-the build system using cons, which may be known as scons's perl ancestor now
-you don't have to track it down though, the build script is provided in the tree
-you will need nasm and gcc 2.95
-make sure you have the X Direct Graphics Access and X Video Mode extensions headers for your X11
-a typical compile command goes like this:
-[..]/code$ ./unix/cons -- gcc=gcc-2.95 g++=g++-2.95
-
-COMPILING ON MAC
-================
-
-project file for OSX compile is in code/macosx/Quake3.pbproj
+While we made sure we were still able to compile the game on Windows, GNU/Linux
+and Mac, this build didn't get any kind of extensive testing so it may not work
+completely right. Whenever an id game is released under GPL, several projects
+start making the source code more friendly to nowaday's compilers and
+environements. If you are picking up this release weeks/months/years after we
+uploaded it, you probably want to look around on the net for cleaned up
+versions of this codebase as well.




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