Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/rc4/rc4_enc.c

Index: openssl/crypto/rc4/rc4_enc.c
diff --git a/openssl/crypto/rc4/rc4_enc.c b/openssl/crypto/rc4/rc4_enc.c
deleted file mode 100644
index 8c4fc6c7a3da38451da27f8b429ef340d2684a40..0000000000000000000000000000000000000000
--- a/openssl/crypto/rc4/rc4_enc.c
+++ /dev/null
@@ -1,315 +0,0 @@
-/* crypto/rc4/rc4_enc.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- * 
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to.  The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- * 
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- * 
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *    "This product includes cryptographic software written by
- *     Eric Young (eay@cryptsoft.com)"
- *    The word 'cryptographic' can be left out if the rouines from the library
- *    being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from 
- *    the apps directory (application code) you must include an acknowledgement:
- *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- * 
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * 
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed.  i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
-
-#include <openssl/rc4.h>
-#include "rc4_locl.h"
-
-/* RC4 as implemented from a posting from
- * Newsgroups: sci.crypt
- * From: sterndark@netcom.com (David Sterndark)
- * Subject: RC4 Algorithm revealed.
- * Message-ID: <sternCvKL4B.Hyy@netcom.com>
- * Date: Wed, 14 Sep 1994 06:35:31 GMT
- */
-
-void RC4(RC4_KEY *key, size_t len, const unsigned char *indata,
-	     unsigned char *outdata)
-	{
-        register RC4_INT *d;
-        register RC4_INT x,y,tx,ty;
-	size_t i;
-        
-        x=key->x;     
-        y=key->y;     
-        d=key->data; 
-
-#if defined(RC4_CHUNK)
-	/*
-	 * The original reason for implementing this(*) was the fact that
-	 * pre-21164a Alpha CPUs don't have byte load/store instructions
-	 * and e.g. a byte store has to be done with 64-bit load, shift,
-	 * and, or and finally 64-bit store. Peaking data and operating
-	 * at natural word size made it possible to reduce amount of
-	 * instructions as well as to perform early read-ahead without
-	 * suffering from RAW (read-after-write) hazard. This resulted
-	 * in ~40%(**) performance improvement on 21064 box with gcc.
-	 * But it's not only Alpha users who win here:-) Thanks to the
-	 * early-n-wide read-ahead this implementation also exhibits
-	 * >40% speed-up on SPARC and 20-30% on 64-bit MIPS (depending
-	 * on sizeof(RC4_INT)).
-	 *
-	 * (*)	"this" means code which recognizes the case when input
-	 *	and output pointers appear to be aligned at natural CPU
-	 *	word boundary
-	 * (**)	i.e. according to 'apps/openssl speed rc4' benchmark,
-	 *	crypto/rc4/rc4speed.c exhibits almost 70% speed-up...
-	 *
-	 * Cavets.
-	 *
-	 * - RC4_CHUNK="unsigned long long" should be a #1 choice for
-	 *   UltraSPARC. Unfortunately gcc generates very slow code
-	 *   (2.5-3 times slower than one generated by Sun's WorkShop
-	 *   C) and therefore gcc (at least 2.95 and earlier) should
-	 *   always be told that RC4_CHUNK="unsigned long".
-	 *
-	 *					<appro@fy.chalmers.se>
-	 */
-
-# define RC4_STEP	( \
-			x=(x+1) &0xff,	\
-			tx=d[x],	\
-			y=(tx+y)&0xff,	\
-			ty=d[y],	\
-			d[y]=tx,	\
-			d[x]=ty,	\
-			(RC4_CHUNK)d[(tx+ty)&0xff]\
-			)
-
-	if ( ( ((size_t)indata  & (sizeof(RC4_CHUNK)-1)) | 
-	       ((size_t)outdata & (sizeof(RC4_CHUNK)-1)) ) == 0 )
-		{
-		RC4_CHUNK ichunk,otp;
-		const union { long one; char little; } is_endian = {1};
-
-		/*
-		 * I reckon we can afford to implement both endian
-		 * cases and to decide which way to take at run-time
-		 * because the machine code appears to be very compact
-		 * and redundant 1-2KB is perfectly tolerable (i.e.
-		 * in case the compiler fails to eliminate it:-). By
-		 * suggestion from Terrel Larson <terr@terralogic.net>
-		 * who also stands for the is_endian union:-)
-		 *
-		 * Special notes.
-		 *
-		 * - is_endian is declared automatic as doing otherwise
-		 *   (declaring static) prevents gcc from eliminating
-		 *   the redundant code;
-		 * - compilers (those I've tried) don't seem to have
-		 *   problems eliminating either the operators guarded
-		 *   by "if (sizeof(RC4_CHUNK)==8)" or the condition
-		 *   expressions themselves so I've got 'em to replace
-		 *   corresponding #ifdefs from the previous version;
-		 * - I chose to let the redundant switch cases when
-		 *   sizeof(RC4_CHUNK)!=8 be (were also #ifdefed
-		 *   before);
-		 * - in case you wonder "&(sizeof(RC4_CHUNK)*8-1)" in
-		 *   [LB]ESHFT guards against "shift is out of range"
-		 *   warnings when sizeof(RC4_CHUNK)!=8 
-		 *
-		 *			<appro@fy.chalmers.se>
-		 */
-		if (!is_endian.little)
-			{	/* BIG-ENDIAN CASE */
-# define BESHFT(c)	(((sizeof(RC4_CHUNK)-(c)-1)*8)&(sizeof(RC4_CHUNK)*8-1))
-			for (;len&(0-sizeof(RC4_CHUNK));len-=sizeof(RC4_CHUNK))
-				{
-				ichunk  = *(RC4_CHUNK *)indata;
-				otp  = RC4_STEP<<BESHFT(0);
-				otp |= RC4_STEP<<BESHFT(1);
-				otp |= RC4_STEP<<BESHFT(2);
-				otp |= RC4_STEP<<BESHFT(3);
-				if (sizeof(RC4_CHUNK)==8)
-					{
-					otp |= RC4_STEP<<BESHFT(4);
-					otp |= RC4_STEP<<BESHFT(5);
-					otp |= RC4_STEP<<BESHFT(6);
-					otp |= RC4_STEP<<BESHFT(7);
-					}
-				*(RC4_CHUNK *)outdata = otp^ichunk;
-				indata  += sizeof(RC4_CHUNK);
-				outdata += sizeof(RC4_CHUNK);
-				}
-			if (len)
-				{
-				RC4_CHUNK mask=(RC4_CHUNK)-1, ochunk;
-
-				ichunk = *(RC4_CHUNK *)indata;
-				ochunk = *(RC4_CHUNK *)outdata;
-				otp = 0;
-				i = BESHFT(0);
-				mask <<= (sizeof(RC4_CHUNK)-len)<<3;
-				switch (len&(sizeof(RC4_CHUNK)-1))
-					{
-					case 7:	otp  = RC4_STEP<<i, i-=8;
-					case 6:	otp |= RC4_STEP<<i, i-=8;
-					case 5:	otp |= RC4_STEP<<i, i-=8;
-					case 4:	otp |= RC4_STEP<<i, i-=8;
-					case 3:	otp |= RC4_STEP<<i, i-=8;
-					case 2:	otp |= RC4_STEP<<i, i-=8;
-					case 1:	otp |= RC4_STEP<<i, i-=8;
-					case 0: ; /*
-						   * it's never the case,
-						   * but it has to be here
-						   * for ultrix?
-						   */
-					}
-				ochunk &= ~mask;
-				ochunk |= (otp^ichunk) & mask;
-				*(RC4_CHUNK *)outdata = ochunk;
-				}
-			key->x=x;     
-			key->y=y;
-			return;
-			}
-		else
-			{	/* LITTLE-ENDIAN CASE */
-# define LESHFT(c)	(((c)*8)&(sizeof(RC4_CHUNK)*8-1))
-			for (;len&(0-sizeof(RC4_CHUNK));len-=sizeof(RC4_CHUNK))
-				{
-				ichunk  = *(RC4_CHUNK *)indata;
-				otp  = RC4_STEP;
-				otp |= RC4_STEP<<8;
-				otp |= RC4_STEP<<16;
-				otp |= RC4_STEP<<24;
-				if (sizeof(RC4_CHUNK)==8)
-					{
-					otp |= RC4_STEP<<LESHFT(4);
-					otp |= RC4_STEP<<LESHFT(5);
-					otp |= RC4_STEP<<LESHFT(6);
-					otp |= RC4_STEP<<LESHFT(7);
-					}
-				*(RC4_CHUNK *)outdata = otp^ichunk;
-				indata  += sizeof(RC4_CHUNK);
-				outdata += sizeof(RC4_CHUNK);
-				}
-			if (len)
-				{
-				RC4_CHUNK mask=(RC4_CHUNK)-1, ochunk;
-
-				ichunk = *(RC4_CHUNK *)indata;
-				ochunk = *(RC4_CHUNK *)outdata;
-				otp = 0;
-				i   = 0;
-				mask >>= (sizeof(RC4_CHUNK)-len)<<3;
-				switch (len&(sizeof(RC4_CHUNK)-1))
-					{
-					case 7:	otp  = RC4_STEP,    i+=8;
-					case 6:	otp |= RC4_STEP<<i, i+=8;
-					case 5:	otp |= RC4_STEP<<i, i+=8;
-					case 4:	otp |= RC4_STEP<<i, i+=8;
-					case 3:	otp |= RC4_STEP<<i, i+=8;
-					case 2:	otp |= RC4_STEP<<i, i+=8;
-					case 1:	otp |= RC4_STEP<<i, i+=8;
-					case 0: ; /*
-						   * it's never the case,
-						   * but it has to be here
-						   * for ultrix?
-						   */
-					}
-				ochunk &= ~mask;
-				ochunk |= (otp^ichunk) & mask;
-				*(RC4_CHUNK *)outdata = ochunk;
-				}
-			key->x=x;     
-			key->y=y;
-			return;
-			}
-		}
-#endif
-#define LOOP(in,out) \
-		x=((x+1)&0xff); \
-		tx=d[x]; \
-		y=(tx+y)&0xff; \
-		d[x]=ty=d[y]; \
-		d[y]=tx; \
-		(out) = d[(tx+ty)&0xff]^ (in);
-
-#ifndef RC4_INDEX
-#define RC4_LOOP(a,b,i)	LOOP(*((a)++),*((b)++))
-#else
-#define RC4_LOOP(a,b,i)	LOOP(a[i],b[i])
-#endif
-
-	i=len>>3;
-	if (i)
-		{
-		for (;;)
-			{
-			RC4_LOOP(indata,outdata,0);
-			RC4_LOOP(indata,outdata,1);
-			RC4_LOOP(indata,outdata,2);
-			RC4_LOOP(indata,outdata,3);
-			RC4_LOOP(indata,outdata,4);
-			RC4_LOOP(indata,outdata,5);
-			RC4_LOOP(indata,outdata,6);
-			RC4_LOOP(indata,outdata,7);
-#ifdef RC4_INDEX
-			indata+=8;
-			outdata+=8;
-#endif
-			if (--i == 0) break;
-			}
-		}
-	i=len&0x07;
-	if (i)
-		{
-		for (;;)
-			{
-			RC4_LOOP(indata,outdata,0); if (--i == 0) break;
-			RC4_LOOP(indata,outdata,1); if (--i == 0) break;
-			RC4_LOOP(indata,outdata,2); if (--i == 0) break;
-			RC4_LOOP(indata,outdata,3); if (--i == 0) break;
-			RC4_LOOP(indata,outdata,4); if (--i == 0) break;
-			RC4_LOOP(indata,outdata,5); if (--i == 0) break;
-			RC4_LOOP(indata,outdata,6); if (--i == 0) break;
-			}
-		}               
-	key->x=x;     
-	key->y=y;
-	}