Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/md32_common.h

Index: openssl/crypto/md32_common.h
diff --git a/openssl/crypto/md32_common.h b/openssl/crypto/md32_common.h
deleted file mode 100644
index bb7381952a2263dc9ee56afbf4af20dc33078001..0000000000000000000000000000000000000000
--- a/openssl/crypto/md32_common.h
+++ /dev/null
@@ -1,415 +0,0 @@
-/* crypto/md32_common.h */
-/* ====================================================================
- * Copyright (c) 1999-2007 The OpenSSL Project.  All rights reserved.
- *
- * 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 above 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 acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- *    nor may "OpenSSL" appear in their names without prior written
- *    permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED 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 OpenSSL PROJECT OR
- * ITS 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.
- * ====================================================================
- *
- */
-
-/*
- * This is a generic 32 bit "collector" for message digest algorithms.
- * Whenever needed it collects input character stream into chunks of
- * 32 bit values and invokes a block function that performs actual hash
- * calculations.
- *
- * Porting guide.
- *
- * Obligatory macros:
- *
- * DATA_ORDER_IS_BIG_ENDIAN or DATA_ORDER_IS_LITTLE_ENDIAN
- *	this macro defines byte order of input stream.
- * HASH_CBLOCK
- *	size of a unit chunk HASH_BLOCK operates on.
- * HASH_LONG
- *	has to be at lest 32 bit wide, if it's wider, then
- *	HASH_LONG_LOG2 *has to* be defined along
- * HASH_CTX
- *	context structure that at least contains following
- *	members:
- *		typedef struct {
- *			...
- *			HASH_LONG	Nl,Nh;
- *			either {
- *			HASH_LONG	data[HASH_LBLOCK];
- *			unsigned char	data[HASH_CBLOCK];
- *			};
- *			unsigned int	num;
- *			...
- *			} HASH_CTX;
- *	data[] vector is expected to be zeroed upon first call to
- *	HASH_UPDATE.
- * HASH_UPDATE
- *	name of "Update" function, implemented here.
- * HASH_TRANSFORM
- *	name of "Transform" function, implemented here.
- * HASH_FINAL
- *	name of "Final" function, implemented here.
- * HASH_BLOCK_DATA_ORDER
- *	name of "block" function capable of treating *unaligned* input
- *	message in original (data) byte order, implemented externally.
- * HASH_MAKE_STRING
- *	macro convering context variables to an ASCII hash string.
- *
- * MD5 example:
- *
- *	#define DATA_ORDER_IS_LITTLE_ENDIAN
- *
- *	#define HASH_LONG		MD5_LONG
- *	#define HASH_LONG_LOG2		MD5_LONG_LOG2
- *	#define HASH_CTX		MD5_CTX
- *	#define HASH_CBLOCK		MD5_CBLOCK
- *	#define HASH_UPDATE		MD5_Update
- *	#define HASH_TRANSFORM		MD5_Transform
- *	#define HASH_FINAL		MD5_Final
- *	#define HASH_BLOCK_DATA_ORDER	md5_block_data_order
- *
- *					<appro@fy.chalmers.se>
- */
-
-#if !defined(DATA_ORDER_IS_BIG_ENDIAN) && !defined(DATA_ORDER_IS_LITTLE_ENDIAN)
-#error "DATA_ORDER must be defined!"
-#endif
-
-#ifndef HASH_CBLOCK
-#error "HASH_CBLOCK must be defined!"
-#endif
-#ifndef HASH_LONG
-#error "HASH_LONG must be defined!"
-#endif
-#ifndef HASH_CTX
-#error "HASH_CTX must be defined!"
-#endif
-
-#ifndef HASH_UPDATE
-#error "HASH_UPDATE must be defined!"
-#endif
-#ifndef HASH_TRANSFORM
-#error "HASH_TRANSFORM must be defined!"
-#endif
-#ifndef HASH_FINAL
-#error "HASH_FINAL must be defined!"
-#endif
-
-#ifndef HASH_BLOCK_DATA_ORDER
-#error "HASH_BLOCK_DATA_ORDER must be defined!"
-#endif
-
-/*
- * Engage compiler specific rotate intrinsic function if available.
- */
-#undef ROTATE
-#ifndef PEDANTIC
-# if defined(_MSC_VER) || defined(__ICC)
-#  define ROTATE(a,n)	_lrotl(a,n)
-# elif defined(__MWERKS__)
-#  if defined(__POWERPC__)
-#   define ROTATE(a,n)	__rlwinm(a,n,0,31)
-#  elif defined(__MC68K__)
-    /* Motorola specific tweak. <appro@fy.chalmers.se> */
-#   define ROTATE(a,n)	( n<24 ? __rol(a,n) : __ror(a,32-n) )
-#  else
-#   define ROTATE(a,n)	__rol(a,n)
-#  endif
-# elif defined(__GNUC__) && __GNUC__>=2 && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM)
-  /*
-   * Some GNU C inline assembler templates. Note that these are
-   * rotates by *constant* number of bits! But that's exactly
-   * what we need here...
-   * 					<appro@fy.chalmers.se>
-   */
-#  if defined(__i386) || defined(__i386__) || defined(__x86_64) || defined(__x86_64__)
-#   define ROTATE(a,n)	({ register unsigned int ret;	\
-				asm (			\
-				"roll %1,%0"		\
-				: "=r"(ret)		\
-				: "I"(n), "0"((unsigned int)(a))	\
-				: "cc");		\
-			   ret;				\
-			})
-#  elif defined(_ARCH_PPC) || defined(_ARCH_PPC64) || \
-	defined(__powerpc) || defined(__ppc__) || defined(__powerpc64__)
-#   define ROTATE(a,n)	({ register unsigned int ret;	\
-				asm (			\
-				"rlwinm %0,%1,%2,0,31"	\
-				: "=r"(ret)		\
-				: "r"(a), "I"(n));	\
-			   ret;				\
-			})
-#  elif defined(__s390x__)
-#   define ROTATE(a,n) ({ register unsigned int ret;	\
-				asm ("rll %0,%1,%2"	\
-				: "=r"(ret)		\
-				: "r"(a), "I"(n));	\
-			  ret;				\
-			})
-#  endif
-# endif
-#endif /* PEDANTIC */
-
-#ifndef ROTATE
-#define ROTATE(a,n)     (((a)<<(n))|(((a)&0xffffffff)>>(32-(n))))
-#endif
-
-#if defined(DATA_ORDER_IS_BIG_ENDIAN)
-
-#ifndef PEDANTIC
-# if defined(__GNUC__) && __GNUC__>=2 && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM)
-#  if ((defined(__i386) || defined(__i386__)) && !defined(I386_ONLY)) || \
-      (defined(__x86_64) || defined(__x86_64__))
-#   if !defined(B_ENDIAN)
-    /*
-     * This gives ~30-40% performance improvement in SHA-256 compiled
-     * with gcc [on P4]. Well, first macro to be frank. We can pull
-     * this trick on x86* platforms only, because these CPUs can fetch
-     * unaligned data without raising an exception.
-     */
-#   define HOST_c2l(c,l)	({ unsigned int r=*((const unsigned int *)(c));	\
-				   asm ("bswapl %0":"=r"(r):"0"(r));	\
-				   (c)+=4; (l)=r;			})
-#   define HOST_l2c(l,c)	({ unsigned int r=(l);			\
-				   asm ("bswapl %0":"=r"(r):"0"(r));	\
-				   *((unsigned int *)(c))=r; (c)+=4; r;	})
-#   endif
-#  endif
-# endif
-#endif
-#if defined(__s390__) || defined(__s390x__)
-# define HOST_c2l(c,l) ((l)=*((const unsigned int *)(c)), (c)+=4, (l))
-# define HOST_l2c(l,c) (*((unsigned int *)(c))=(l), (c)+=4, (l))
-#endif
-
-#ifndef HOST_c2l
-#define HOST_c2l(c,l)	(l =(((unsigned long)(*((c)++)))<<24),		\
-			 l|=(((unsigned long)(*((c)++)))<<16),		\
-			 l|=(((unsigned long)(*((c)++)))<< 8),		\
-			 l|=(((unsigned long)(*((c)++)))    ),		\
-			 l)
-#endif
-#ifndef HOST_l2c
-#define HOST_l2c(l,c)	(*((c)++)=(unsigned char)(((l)>>24)&0xff),	\
-			 *((c)++)=(unsigned char)(((l)>>16)&0xff),	\
-			 *((c)++)=(unsigned char)(((l)>> 8)&0xff),	\
-			 *((c)++)=(unsigned char)(((l)    )&0xff),	\
-			 l)
-#endif
-
-#elif defined(DATA_ORDER_IS_LITTLE_ENDIAN)
-
-#ifndef PEDANTIC
-# if defined(__GNUC__) && __GNUC__>=2 && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM)
-#  if defined(__s390x__)
-#   define HOST_c2l(c,l)	({ asm ("lrv	%0,%1"			\
-				   :"=d"(l) :"m"(*(const unsigned int *)(c)));\
-				   (c)+=4; (l);				})
-#   define HOST_l2c(l,c)	({ asm ("strv	%1,%0"			\
-				   :"=m"(*(unsigned int *)(c)) :"d"(l));\
-				   (c)+=4; (l);				})
-#  endif
-# endif
-#endif
-#if defined(__i386) || defined(__i386__) || defined(__x86_64) || defined(__x86_64__)
-# ifndef B_ENDIAN
-   /* See comment in DATA_ORDER_IS_BIG_ENDIAN section. */
-#  define HOST_c2l(c,l)	((l)=*((const unsigned int *)(c)), (c)+=4, l)
-#  define HOST_l2c(l,c)	(*((unsigned int *)(c))=(l), (c)+=4, l)
-# endif
-#endif
-
-#ifndef HOST_c2l
-#define HOST_c2l(c,l)	(l =(((unsigned long)(*((c)++)))    ),		\
-			 l|=(((unsigned long)(*((c)++)))<< 8),		\
-			 l|=(((unsigned long)(*((c)++)))<<16),		\
-			 l|=(((unsigned long)(*((c)++)))<<24),		\
-			 l)
-#endif
-#ifndef HOST_l2c
-#define HOST_l2c(l,c)	(*((c)++)=(unsigned char)(((l)    )&0xff),	\
-			 *((c)++)=(unsigned char)(((l)>> 8)&0xff),	\
-			 *((c)++)=(unsigned char)(((l)>>16)&0xff),	\
-			 *((c)++)=(unsigned char)(((l)>>24)&0xff),	\
-			 l)
-#endif
-
-#endif
-
-/*
- * Time for some action:-)
- */
-
-int HASH_UPDATE (HASH_CTX *c, const void *data_, size_t len)
-	{
-	const unsigned char *data=data_;
-	unsigned char *p;
-	HASH_LONG l;
-	size_t n;
-
-	if (len==0) return 1;
-
-	l=(c->Nl+(((HASH_LONG)len)<<3))&0xffffffffUL;
-	/* 95-05-24 eay Fixed a bug with the overflow handling, thanks to
-	 * Wei Dai <weidai@eskimo.com> for pointing it out. */
-	if (l < c->Nl) /* overflow */
-		c->Nh++;
-	c->Nh+=(HASH_LONG)(len>>29);	/* might cause compiler warning on 16-bit */
-	c->Nl=l;
-
-	n = c->num;
-	if (n != 0)
-		{
-		p=(unsigned char *)c->data;
-
-		if (len >= HASH_CBLOCK || len+n >= HASH_CBLOCK)
-			{
-			memcpy (p+n,data,HASH_CBLOCK-n);
-			HASH_BLOCK_DATA_ORDER (c,p,1);
-			n      = HASH_CBLOCK-n;
-			data  += n;
-			len   -= n;
-			c->num = 0;
-			memset (p,0,HASH_CBLOCK);	/* keep it zeroed */
-			}
-		else
-			{
-			memcpy (p+n,data,len);
-			c->num += (unsigned int)len;
-			return 1;
-			}
-		}
-
-	n = len/HASH_CBLOCK;
-	if (n > 0)
-		{
-		HASH_BLOCK_DATA_ORDER (c,data,n);
-		n    *= HASH_CBLOCK;
-		data += n;
-		len  -= n;
-		}
-
-	if (len != 0)
-		{
-		p = (unsigned char *)c->data;
-		c->num = (unsigned int)len;
-		memcpy (p,data,len);
-		}
-	return 1;
-	}
-
-
-void HASH_TRANSFORM (HASH_CTX *c, const unsigned char *data)
-	{
-	HASH_BLOCK_DATA_ORDER (c,data,1);
-	}
-
-
-int HASH_FINAL (unsigned char *md, HASH_CTX *c)
-	{
-	unsigned char *p = (unsigned char *)c->data;
-	size_t n = c->num;
-
-	p[n] = 0x80; /* there is always room for one */
-	n++;
-
-	if (n > (HASH_CBLOCK-8))
-		{
-		memset (p+n,0,HASH_CBLOCK-n);
-		n=0;
-		HASH_BLOCK_DATA_ORDER (c,p,1);
-		}
-	memset (p+n,0,HASH_CBLOCK-8-n);
-
-	p += HASH_CBLOCK-8;
-#if   defined(DATA_ORDER_IS_BIG_ENDIAN)
-	(void)HOST_l2c(c->Nh,p);
-	(void)HOST_l2c(c->Nl,p);
-#elif defined(DATA_ORDER_IS_LITTLE_ENDIAN)
-	(void)HOST_l2c(c->Nl,p);
-	(void)HOST_l2c(c->Nh,p);
-#endif
-	p -= HASH_CBLOCK;
-	HASH_BLOCK_DATA_ORDER (c,p,1);
-	c->num=0;
-	memset (p,0,HASH_CBLOCK);
-
-#ifndef HASH_MAKE_STRING
-#error "HASH_MAKE_STRING must be defined!"
-#else
-	HASH_MAKE_STRING(c,md);
-#endif
-
-	return 1;
-	}
-
-#ifndef MD32_REG_T
-#if defined(__alpha) || defined(__sparcv9) || defined(__mips)
-#define MD32_REG_T long
-/*
- * This comment was originaly written for MD5, which is why it
- * discusses A-D. But it basically applies to all 32-bit digests,
- * which is why it was moved to common header file.
- *
- * In case you wonder why A-D are declared as long and not
- * as MD5_LONG. Doing so results in slight performance
- * boost on LP64 architectures. The catch is we don't
- * really care if 32 MSBs of a 64-bit register get polluted
- * with eventual overflows as we *save* only 32 LSBs in
- * *either* case. Now declaring 'em long excuses the compiler
- * from keeping 32 MSBs zeroed resulting in 13% performance
- * improvement under SPARC Solaris7/64 and 5% under AlphaLinux.
- * Well, to be honest it should say that this *prevents* 
- * performance degradation.
- *				<appro@fy.chalmers.se>
- */
-#else
-/*
- * Above is not absolute and there are LP64 compilers that
- * generate better code if MD32_REG_T is defined int. The above
- * pre-processor condition reflects the circumstances under which
- * the conclusion was made and is subject to further extension.
- *				<appro@fy.chalmers.se>
- */
-#define MD32_REG_T int
-#endif
-#endif