nix: Adjust code for Guix.

* nix/libstore/gc.cc (addAdditionalRoots): Refer to 'list-runtime-roots'
  instead of 'find-runtime-roots.pl'.
* nix/libutil/hash.cc, nix/libutil/hash.hh: Change 'union Ctx' to
  'struct Ctx', like 'nix/sync-with-upstream' did.
* nix/AUTHORS: New file.
* nix/COPYING: New file, from upstream Nix.
* nix/libutil/md32_common.h, nix/libutil/md5.c, nix/libutil/md5.h,
  nix/libutil/sha1.c, nix/libutil/sha1.h, nix/libutil/sha256.c,
  nix/libutil/sha256.h: Remove.

12 files changed, 509 insertions, 1740 deletions

diff --git a/nix/AUTHORS b/nix/AUTHORS
new file mode 100644
index 0000000000..fc2279d628
--- /dev/null
+++ b/nix/AUTHORS
@@ -0,0 +1,2 @@
+Most of the code is this directory was written by several people for
+the Nix project (http://nixos.org/nix).  Thanks!
diff --git a/nix/COPYING b/nix/COPYING
new file mode 100644
index 0000000000..5ab7695ab8
--- /dev/null
+++ b/nix/COPYING
@@ -0,0 +1,504 @@
+		  GNU LESSER GENERAL PUBLIC LICENSE
+		       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
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diff --git a/nix/libstore/gc.cc b/nix/libstore/gc.cc
index 96e891f876..f90edac1cd 100644
--- a/nix/libstore/gc.cc
+++ b/nix/libstore/gc.cc
@@ -356,7 +356,7 @@ Roots LocalStore::findRoots()
 static void addAdditionalRoots(StoreAPI & store, PathSet & roots)
 {
     Path rootFinder = getEnv("NIX_ROOT_FINDER",
-        settings.nixLibexecDir + "/nix/find-runtime-roots.pl");
+        settings.nixLibexecDir + "/guix/list-runtime-roots");
 
     if (rootFinder.empty()) return;
 
diff --git a/nix/libutil/hash.cc b/nix/libutil/hash.cc
index de2c1ebd72..050446610f 100644
--- a/nix/libutil/hash.cc
+++ b/nix/libutil/hash.cc
@@ -239,7 +239,7 @@ bool isHash(const string & s)
 }
 
 
-union Ctx
+struct Ctx
 {
     MD5_CTX md5;
     SHA_CTX sha1;
diff --git a/nix/libutil/hash.hh b/nix/libutil/hash.hh
index 2c6f176ec7..8f099c4f07 100644
--- a/nix/libutil/hash.hh
+++ b/nix/libutil/hash.hh
@@ -91,7 +91,7 @@ HashType parseHashType(const string & s);
 string printHashType(HashType ht);
 
 
-union Ctx;
+struct Ctx;
 
 class HashSink : public BufferedSink
 {
diff --git a/nix/libutil/md32_common.h b/nix/libutil/md32_common.h
deleted file mode 100644
index 0cbcfaf8a2..0000000000
--- a/nix/libutil/md32_common.h
+++ /dev/null
@@ -1,620 +0,0 @@
-/* crypto/md32_common.h */
-/* ====================================================================
- * Copyright (c) 1999-2002 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
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- *    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 product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com).  This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
-
-/*
- * 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;
- *			HASH_LONG	data[HASH_LBLOCK];
- *			unsigned int	num;
- *			...
- *			} HASH_CTX;
- * 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_HOST_ORDER
- *	name of "block" function treating *aligned* input message
- *	in host byte order, implemented externally.
- * HASH_BLOCK_DATA_ORDER
- *	name of "block" function treating *unaligned* input message
- *	in original (data) byte order, implemented externally (it
- *	actually is optional if data and host are of the same
- *	"endianess").
- * HASH_MAKE_STRING
- *	macro convering context variables to an ASCII hash string.
- *
- * Optional macros:
- *
- * B_ENDIAN or L_ENDIAN
- *	defines host byte-order.
- * HASH_LONG_LOG2
- *	defaults to 2 if not states otherwise.
- * HASH_LBLOCK
- *	assumed to be HASH_CBLOCK/4 if not stated otherwise.
- * HASH_BLOCK_DATA_ORDER_ALIGNED
- *	alternative "block" function capable of treating
- *	aligned input message in original (data) order,
- *	implemented externally.
- *
- * 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_LBLOCK		MD5_LBLOCK
- *	#define HASH_UPDATE		MD5_Update
- *	#define HASH_TRANSFORM		MD5_Transform
- *	#define HASH_FINAL		MD5_Final
- *	#define HASH_BLOCK_HOST_ORDER	md5_block_host_order
- *	#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_HOST_ORDER
-#error "HASH_BLOCK_HOST_ORDER must be defined!"
-#endif
-
-#if 0
-/*
- * Moved below as it's required only if HASH_BLOCK_DATA_ORDER_ALIGNED
- * isn't defined.
- */
-#ifndef HASH_BLOCK_DATA_ORDER
-#error "HASH_BLOCK_DATA_ORDER must be defined!"
-#endif
-#endif
-
-#ifndef HASH_LBLOCK
-#define HASH_LBLOCK	(HASH_CBLOCK/4)
-#endif
-
-#ifndef HASH_LONG_LOG2
-#define HASH_LONG_LOG2	2
-#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"(a)	\
-				: "cc");		\
-			   ret;				\
-			})
-#  elif 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;				\
-			})
-#  endif
-# endif
-#endif /* PEDANTIC */
-
-#if HASH_LONG_LOG2==2	/* Engage only if sizeof(HASH_LONG)== 4 */
-/* A nice byte order reversal from Wei Dai <weidai@eskimo.com> */
-#ifdef ROTATE
-/* 5 instructions with rotate instruction, else 9 */
-#define REVERSE_FETCH32(a,l)	(					\
-		l=*(const HASH_LONG *)(a),				\
-		((ROTATE(l,8)&0x00FF00FF)|(ROTATE((l&0x00FF00FF),24)))	\
-				)
-#else
-/* 6 instructions with rotate instruction, else 8 */
-#define REVERSE_FETCH32(a,l)	(				\
-		l=*(const HASH_LONG *)(a),			\
-		l=(((l>>8)&0x00FF00FF)|((l&0x00FF00FF)<<8)),	\
-		ROTATE(l,16)					\
-				)
-/*
- * Originally the middle line started with l=(((l&0xFF00FF00)>>8)|...
- * It's rewritten as above for two reasons:
- *	- RISCs aren't good at long constants and have to explicitely
- *	  compose 'em with several (well, usually 2) instructions in a
- *	  register before performing the actual operation and (as you
- *	  already realized:-) having same constant should inspire the
- *	  compiler to permanently allocate the only register for it;
- *	- most modern CPUs have two ALUs, but usually only one has
- *	  circuitry for shifts:-( this minor tweak inspires compiler
- *	  to schedule shift instructions in a better way...
- *
- *				<appro@fy.chalmers.se>
- */
-#endif
-#endif
-
-#ifndef ROTATE
-#define ROTATE(a,n)     (((a)<<(n))|(((a)&0xffffffff)>>(32-(n))))
-#endif
-
-/*
- * Make some obvious choices. E.g., HASH_BLOCK_DATA_ORDER_ALIGNED
- * and HASH_BLOCK_HOST_ORDER ought to be the same if input data
- * and host are of the same "endianess". It's possible to mask
- * this with blank #define HASH_BLOCK_DATA_ORDER though...
- *
- *				<appro@fy.chalmers.se>
- */
-#if defined(B_ENDIAN)
-#  if defined(DATA_ORDER_IS_BIG_ENDIAN)
-#    if !defined(HASH_BLOCK_DATA_ORDER_ALIGNED) && HASH_LONG_LOG2==2
-#      define HASH_BLOCK_DATA_ORDER_ALIGNED	HASH_BLOCK_HOST_ORDER
-#    endif
-#  endif
-#elif defined(L_ENDIAN)
-#  if defined(DATA_ORDER_IS_LITTLE_ENDIAN)
-#    if !defined(HASH_BLOCK_DATA_ORDER_ALIGNED) && HASH_LONG_LOG2==2
-#      define HASH_BLOCK_DATA_ORDER_ALIGNED	HASH_BLOCK_HOST_ORDER
-#    endif
-#  endif
-#endif
-
-#if !defined(HASH_BLOCK_DATA_ORDER_ALIGNED)
-#ifndef HASH_BLOCK_DATA_ORDER
-#error "HASH_BLOCK_DATA_ORDER must be defined!"
-#endif
-#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(__x86_64) || defined(__x86_64__)
-    /*
-     * 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
-
-#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
-#define HOST_p_c2l(c,l,n)	{					\
-			switch (n) {					\
-			case 0: l =((unsigned long)(*((c)++)))<<24;	\
-			case 1: l|=((unsigned long)(*((c)++)))<<16;	\
-			case 2: l|=((unsigned long)(*((c)++)))<< 8;	\
-			case 3: l|=((unsigned long)(*((c)++)));		\
-				} }
-#define HOST_p_c2l_p(c,l,sc,len) {					\
-			switch (sc) {					\
-			case 0: l =((unsigned long)(*((c)++)))<<24;	\
-				if (--len == 0) break;			\
-			case 1: l|=((unsigned long)(*((c)++)))<<16;	\
-				if (--len == 0) break;			\
-			case 2: l|=((unsigned long)(*((c)++)))<< 8;	\
-				} }
-/* NOTE the pointer is not incremented at the end of this */
-#define HOST_c2l_p(c,l,n)	{					\
-			l=0; (c)+=n;					\
-			switch (n) {					\
-			case 3: l =((unsigned long)(*(--(c))))<< 8;	\
-			case 2: l|=((unsigned long)(*(--(c))))<<16;	\
-			case 1: l|=((unsigned long)(*(--(c))))<<24;	\
-				} }
-#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)
-
-#if defined(__i386) || defined(__i386__) || defined(__x86_64) || defined(__x86_64__)
-  /* 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
-
-#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
-#define HOST_p_c2l(c,l,n)	{					\
-			switch (n) {					\
-			case 0: l =((unsigned long)(*((c)++)));		\
-			case 1: l|=((unsigned long)(*((c)++)))<< 8;	\
-			case 2: l|=((unsigned long)(*((c)++)))<<16;	\
-			case 3: l|=((unsigned long)(*((c)++)))<<24;	\
-				} }
-#define HOST_p_c2l_p(c,l,sc,len) {					\
-			switch (sc) {					\
-			case 0: l =((unsigned long)(*((c)++)));		\
-				if (--len == 0) break;			\
-			case 1: l|=((unsigned long)(*((c)++)))<< 8;	\
-				if (--len == 0) break;			\
-			case 2: l|=((unsigned long)(*((c)++)))<<16;	\
-				} }
-/* NOTE the pointer is not incremented at the end of this */
-#define HOST_c2l_p(c,l,n)	{					\
-			l=0; (c)+=n;					\
-			switch (n) {					\
-			case 3: l =((unsigned long)(*(--(c))))<<16;	\
-			case 2: l|=((unsigned long)(*(--(c))))<< 8;	\
-			case 1: l|=((unsigned long)(*(--(c))));		\
-				} }
-#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_;
-	register HASH_LONG * p;
-	register HASH_LONG l;
-	size_t sw,sc,ew,ec;
-
-	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+=(len>>29);	/* might cause compiler warning on 16-bit */
-	c->Nl=l;
-
-	if (c->num != 0)
-		{
-		p=c->data;
-		sw=c->num>>2;
-		sc=c->num&0x03;
-
-		if ((c->num+len) >= HASH_CBLOCK)
-			{
-			l=p[sw]; HOST_p_c2l(data,l,sc); p[sw++]=l;
-			for (; sw<HASH_LBLOCK; sw++)
-				{
-				HOST_c2l(data,l); p[sw]=l;
-				}
-			HASH_BLOCK_HOST_ORDER (c,p,1);
-			len-=(HASH_CBLOCK-c->num);
-			c->num=0;
-			/* drop through and do the rest */
-			}
-		else
-			{
-			c->num+=(unsigned int)len;
-			if ((sc+len) < 4) /* ugly, add char's to a word */
-				{
-				l=p[sw]; HOST_p_c2l_p(data,l,sc,len); p[sw]=l;
-				}
-			else
-				{
-				ew=(c->num>>2);
-				ec=(c->num&0x03);
-				if (sc)
-					l=p[sw];
-				HOST_p_c2l(data,l,sc);
-				p[sw++]=l;
-				for (; sw < ew; sw++)
-					{
-					HOST_c2l(data,l); p[sw]=l;
-					}
-				if (ec)
-					{
-					HOST_c2l_p(data,l,ec); p[sw]=l;
-					}
-				}
-			return 1;
-			}
-		}
-
-	sw=len/HASH_CBLOCK;
-	if (sw > 0)
-		{
-#if defined(HASH_BLOCK_DATA_ORDER_ALIGNED)
-		/*
-		 * Note that HASH_BLOCK_DATA_ORDER_ALIGNED gets defined
-		 * only if sizeof(HASH_LONG)==4.
-		 */
-		if ((((size_t)data)%4) == 0)
-			{
-			/* data is properly aligned so that we can cast it: */
-			HASH_BLOCK_DATA_ORDER_ALIGNED (c,(const HASH_LONG *)data,sw);
-			sw*=HASH_CBLOCK;
-			data+=sw;
-			len-=sw;
-			}
-		else
-#if !defined(HASH_BLOCK_DATA_ORDER)
-			while (sw--)
-				{
-				memcpy (p=c->data,data,HASH_CBLOCK);
-				HASH_BLOCK_DATA_ORDER_ALIGNED(c,p,1);
-				data+=HASH_CBLOCK;
-				len-=HASH_CBLOCK;
-				}
-#endif
-#endif
-#if defined(HASH_BLOCK_DATA_ORDER)
-			{
-			HASH_BLOCK_DATA_ORDER(c,data,sw);
-			sw*=HASH_CBLOCK;
-			data+=sw;
-			len-=sw;
-			}
-#endif
-		}
-
-	if (len!=0)
-		{
-		p = c->data;
-		c->num = len;
-		ew=len>>2;	/* words to copy */
-		ec=len&0x03;
-		for (; ew; ew--,p++)
-			{
-			HOST_c2l(data,l); *p=l;
-			}
-		HOST_c2l_p(data,l,ec);
-		*p=l;
-		}
-	return 1;
-	}
-
-
-void HASH_TRANSFORM (HASH_CTX *c, const unsigned char *data)
-	{
-#if defined(HASH_BLOCK_DATA_ORDER_ALIGNED)
-	if ((((size_t)data)%4) == 0)
-		/* data is properly aligned so that we can cast it: */
-		HASH_BLOCK_DATA_ORDER_ALIGNED (c,(const HASH_LONG *)data,1);
-	else
-#if !defined(HASH_BLOCK_DATA_ORDER)
-		{
-		memcpy (c->data,data,HASH_CBLOCK);
-		HASH_BLOCK_DATA_ORDER_ALIGNED (c,c->data,1);
-		}
-#endif
-#endif
-#if defined(HASH_BLOCK_DATA_ORDER)
-	HASH_BLOCK_DATA_ORDER (c,data,1);
-#endif
-	}
-
-
-int HASH_FINAL (unsigned char *md, HASH_CTX *c)
-	{
-	register HASH_LONG *p;
-	register unsigned long l;
-	register int i,j;
-	static const unsigned char end[4]={0x80,0x00,0x00,0x00};
-	const unsigned char *cp=end;
-
-	/* c->num should definitly have room for at least one more byte. */
-	p=c->data;
-	i=c->num>>2;
-	j=c->num&0x03;
-
-#if 0
-	/* purify often complains about the following line as an
-	 * Uninitialized Memory Read.  While this can be true, the
-	 * following p_c2l macro will reset l when that case is true.
-	 * This is because j&0x03 contains the number of 'valid' bytes
-	 * already in p[i].  If and only if j&0x03 == 0, the UMR will
-	 * occur but this is also the only time p_c2l will do
-	 * l= *(cp++) instead of l|= *(cp++)
-	 * Many thanks to Alex Tang <altitude@cic.net> for pickup this
-	 * 'potential bug' */
-#ifdef PURIFY
-	if (j==0) p[i]=0; /* Yeah, but that's not the way to fix it:-) */
-#endif
-	l=p[i];
-#else
-	l = (j==0) ? 0 : p[i];
-#endif
-	HOST_p_c2l(cp,l,j); p[i++]=l; /* i is the next 'undefined word' */
-
-	if (i>(HASH_LBLOCK-2)) /* save room for Nl and Nh */
-		{
-		if (i<HASH_LBLOCK) p[i]=0;
-		HASH_BLOCK_HOST_ORDER (c,p,1);
-		i=0;
-		}
-	for (; i<(HASH_LBLOCK-2); i++)
-		p[i]=0;
-
-#if   defined(DATA_ORDER_IS_BIG_ENDIAN)
-	p[HASH_LBLOCK-2]=c->Nh;
-	p[HASH_LBLOCK-1]=c->Nl;
-#elif defined(DATA_ORDER_IS_LITTLE_ENDIAN)
-	p[HASH_LBLOCK-2]=c->Nl;
-	p[HASH_LBLOCK-1]=c->Nh;
-#endif
-	HASH_BLOCK_HOST_ORDER (c,p,1);
-
-#ifndef HASH_MAKE_STRING
-#error "HASH_MAKE_STRING must be defined!"
-#else
-	HASH_MAKE_STRING(c,md);
-#endif
-
-	c->num=0;
-	/* clear stuff, HASH_BLOCK may be leaving some stuff on the stack
-	 * but I'm not worried :-)
-	OPENSSL_cleanse((void *)c,sizeof(HASH_CTX));
-	 */
-	return 1;
-	}
-
-#ifndef MD32_REG_T
-#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>
- * Apparently there're LP64 compilers that generate better
- * code if A-D are declared int. Most notably GCC-x86_64
- * generates better code.
- *				<appro@fy.chalmers.se>
- */
-#endif
diff --git a/nix/libutil/md5.c b/nix/libutil/md5.c
deleted file mode 100644
index b31640cdcc..0000000000
--- a/nix/libutil/md5.c
+++ /dev/null
@@ -1,365 +0,0 @@
-/* Functions to compute MD5 message digest of files or memory blocks.
-   according to the definition of MD5 in RFC 1321 from April 1992.
-   Copyright (C) 1995,1996,1997,1999,2000,2001 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library 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
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-/* Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.  */
-
-#include <sys/types.h>
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "md5.h"
-
-
-static md5_uint32 SWAP(md5_uint32 n)
-{
-  static int checked = 0;
-  static int bigendian = 0;
-  static md5_uint32 test;
-
-  if (!checked) {
-    test = 1;
-    if (* (char *) &test == 0)
-      bigendian = 1;
-    checked = 1;
-  }
-
-  if (bigendian)
-    return (((n) << 24) | (((n) & 0xff00) << 8) | (((n) >> 8) & 0xff00) | ((n) >> 24));
-  else
-    return n;
-}
-
-
-/* This array contains the bytes used to pad the buffer to the next
-   64-byte boundary.  (RFC 1321, 3.1: Step 1)  */
-static const unsigned char fillbuf[64] = { 0x80, 0 /* , 0, 0, ...  */ };
-
-
-/* Initialize structure containing state of computation.
-   (RFC 1321, 3.3: Step 3)  */
-void
-MD5_Init (ctx)
-     struct MD5_CTX *ctx;
-{
-  ctx->A = 0x67452301;
-  ctx->B = 0xefcdab89;
-  ctx->C = 0x98badcfe;
-  ctx->D = 0x10325476;
-
-  ctx->total[0] = ctx->total[1] = 0;
-  ctx->buflen = 0;
-}
-
-/* Put result from CTX in first 16 bytes following RESBUF.  The result
-   must be in little endian byte order.
-
-   IMPORTANT: On some systems it is required that RESBUF is correctly
-   aligned for a 32 bits value.  */
-void *
-md5_read_ctx (ctx, resbuf)
-     const struct MD5_CTX *ctx;
-     void *resbuf;
-{
-  ((md5_uint32 *) resbuf)[0] = SWAP (ctx->A);
-  ((md5_uint32 *) resbuf)[1] = SWAP (ctx->B);
-  ((md5_uint32 *) resbuf)[2] = SWAP (ctx->C);
-  ((md5_uint32 *) resbuf)[3] = SWAP (ctx->D);
-
-  return resbuf;
-}
-
-/* Process the remaining bytes in the internal buffer and the usual
-   prolog according to the standard and write the result to RESBUF.
-
-   IMPORTANT: On some systems it is required that RESBUF is correctly
-   aligned for a 32 bits value.  */
-void *
-MD5_Final (resbuf, ctx)
-     void *resbuf;
-     struct MD5_CTX *ctx;
-{
-  /* Take yet unprocessed bytes into account.  */
-  md5_uint32 bytes = ctx->buflen;
-  size_t pad;
-
-  /* Now count remaining bytes.  */
-  ctx->total[0] += bytes;
-  if (ctx->total[0] < bytes)
-    ++ctx->total[1];
-
-  pad = bytes >= 56 ? 64 + 56 - bytes : 56 - bytes;
-  memcpy (&ctx->buffer[bytes], fillbuf, pad);
-
-  /* Put the 64-bit file length in *bits* at the end of the buffer.  */
-  *(md5_uint32 *) &ctx->buffer[bytes + pad] = SWAP (ctx->total[0] << 3);
-  *(md5_uint32 *) &ctx->buffer[bytes + pad + 4] = SWAP ((ctx->total[1] << 3) |
-							(ctx->total[0] >> 29));
-
-  /* Process last bytes.  */
-  md5_process_block (ctx->buffer, bytes + pad + 8, ctx);
-
-  return md5_read_ctx (ctx, resbuf);
-}
-
-void
-MD5_Update (ctx, buffer, len)
-     struct MD5_CTX *ctx;
-     const void *buffer;
-     size_t len;
-{
-  /* When we already have some bits in our internal buffer concatenate
-     both inputs first.  */
-  if (ctx->buflen != 0)
-    {
-      size_t left_over = ctx->buflen;
-      size_t add = 128 - left_over > len ? len : 128 - left_over;
-
-      memcpy (&ctx->buffer[left_over], buffer, add);
-      ctx->buflen += add;
-
-      if (ctx->buflen > 64)
-	{
-	  md5_process_block (ctx->buffer, ctx->buflen & ~63, ctx);
-
-	  ctx->buflen &= 63;
-	  /* The regions in the following copy operation cannot overlap.  */
-	  memcpy (ctx->buffer, &ctx->buffer[(left_over + add) & ~63],
-		  ctx->buflen);
-	}
-
-      buffer = (const char *) buffer + add;
-      len -= add;
-    }
-
-  /* Process available complete blocks.  */
-  if (len >= 64)
-    {
-#if !_STRING_ARCH_unaligned
-/* To check alignment gcc has an appropriate operator.  Other
-   compilers don't.  */
-# if __GNUC__ >= 2
-#  define UNALIGNED_P(p) (((md5_uintptr) p) % __alignof__ (md5_uint32) != 0)
-# else
-#  define UNALIGNED_P(p) (((md5_uintptr) p) % sizeof (md5_uint32) != 0)
-# endif
-      if (UNALIGNED_P (buffer))
-	while (len > 64)
-	  {
-	    md5_process_block (memcpy (ctx->buffer, buffer, 64), 64, ctx);
-	    buffer = (const char *) buffer + 64;
-	    len -= 64;
-	  }
-      else
-#endif
-	{
-	  md5_process_block (buffer, len & ~63, ctx);
-	  buffer = (const char *) buffer + (len & ~63);
-	  len &= 63;
-	}
-    }
-
-  /* Move remaining bytes in internal buffer.  */
-  if (len > 0)
-    {
-      size_t left_over = ctx->buflen;
-
-      memcpy (&ctx->buffer[left_over], buffer, len);
-      left_over += len;
-      if (left_over >= 64)
-	{
-	  md5_process_block (ctx->buffer, 64, ctx);
-	  left_over -= 64;
-	  memcpy (ctx->buffer, &ctx->buffer[64], left_over);
-	}
-      ctx->buflen = left_over;
-    }
-}
-
-
-/* These are the four functions used in the four steps of the MD5 algorithm
-   and defined in the RFC 1321.  The first function is a little bit optimized
-   (as found in Colin Plumbs public domain implementation).  */
-/* #define FF(b, c, d) ((b & c) | (~b & d)) */
-#define FF(b, c, d) (d ^ (b & (c ^ d)))
-#define FG(b, c, d) FF (d, b, c)
-#define FH(b, c, d) (b ^ c ^ d)
-#define FI(b, c, d) (c ^ (b | ~d))
-
-/* Process LEN bytes of BUFFER, accumulating context into CTX.
-   It is assumed that LEN % 64 == 0.  */
-
-void
-md5_process_block (buffer, len, ctx)
-     const void *buffer;
-     size_t len;
-     struct MD5_CTX *ctx;
-{
-  md5_uint32 correct_words[16];
-  const md5_uint32 *words = buffer;
-  size_t nwords = len / sizeof (md5_uint32);
-  const md5_uint32 *endp = words + nwords;
-  md5_uint32 A = ctx->A;
-  md5_uint32 B = ctx->B;
-  md5_uint32 C = ctx->C;
-  md5_uint32 D = ctx->D;
-
-  /* First increment the byte count.  RFC 1321 specifies the possible
-     length of the file up to 2^64 bits.  Here we only compute the
-     number of bytes.  Do a double word increment.  */
-  ctx->total[0] += len;
-  if (ctx->total[0] < len)
-    ++ctx->total[1];
-
-  /* Process all bytes in the buffer with 64 bytes in each round of
-     the loop.  */
-  while (words < endp)
-    {
-      md5_uint32 *cwp = correct_words;
-      md5_uint32 A_save = A;
-      md5_uint32 B_save = B;
-      md5_uint32 C_save = C;
-      md5_uint32 D_save = D;
-
-      /* First round: using the given function, the context and a constant
-	 the next context is computed.  Because the algorithms processing
-	 unit is a 32-bit word and it is determined to work on words in
-	 little endian byte order we perhaps have to change the byte order
-	 before the computation.  To reduce the work for the next steps
-	 we store the swapped words in the array CORRECT_WORDS.  */
-
-#define OP(a, b, c, d, s, T)						\
-      do								\
-        {								\
-	  a += FF (b, c, d) + (*cwp++ = SWAP (*words)) + T;		\
-	  ++words;							\
-	  CYCLIC (a, s);						\
-	  a += b;							\
-        }								\
-      while (0)
-
-      /* It is unfortunate that C does not provide an operator for
-	 cyclic rotation.  Hope the C compiler is smart enough.  */
-#define CYCLIC(w, s) (w = (w << s) | (w >> (32 - s)))
-
-      /* Before we start, one word to the strange constants.
-	 They are defined in RFC 1321 as
-
-	 T[i] = (int) (4294967296.0 * fabs (sin (i))), i=1..64
-       */
-
-      /* Round 1.  */
-      OP (A, B, C, D,  7, 0xd76aa478);
-      OP (D, A, B, C, 12, 0xe8c7b756);
-      OP (C, D, A, B, 17, 0x242070db);
-      OP (B, C, D, A, 22, 0xc1bdceee);
-      OP (A, B, C, D,  7, 0xf57c0faf);
-      OP (D, A, B, C, 12, 0x4787c62a);
-      OP (C, D, A, B, 17, 0xa8304613);
-      OP (B, C, D, A, 22, 0xfd469501);
-      OP (A, B, C, D,  7, 0x698098d8);
-      OP (D, A, B, C, 12, 0x8b44f7af);
-      OP (C, D, A, B, 17, 0xffff5bb1);
-      OP (B, C, D, A, 22, 0x895cd7be);
-      OP (A, B, C, D,  7, 0x6b901122);
-      OP (D, A, B, C, 12, 0xfd987193);
-      OP (C, D, A, B, 17, 0xa679438e);
-      OP (B, C, D, A, 22, 0x49b40821);
-
-      /* For the second to fourth round we have the possibly swapped words
-	 in CORRECT_WORDS.  Redefine the macro to take an additional first
-	 argument specifying the function to use.  */
-#undef OP
-#define OP(f, a, b, c, d, k, s, T)					\
-      do 								\
-	{								\
-	  a += f (b, c, d) + correct_words[k] + T;			\
-	  CYCLIC (a, s);						\
-	  a += b;							\
-	}								\
-      while (0)
-
-      /* Round 2.  */
-      OP (FG, A, B, C, D,  1,  5, 0xf61e2562);
-      OP (FG, D, A, B, C,  6,  9, 0xc040b340);
-      OP (FG, C, D, A, B, 11, 14, 0x265e5a51);
-      OP (FG, B, C, D, A,  0, 20, 0xe9b6c7aa);
-      OP (FG, A, B, C, D,  5,  5, 0xd62f105d);
-      OP (FG, D, A, B, C, 10,  9, 0x02441453);
-      OP (FG, C, D, A, B, 15, 14, 0xd8a1e681);
-      OP (FG, B, C, D, A,  4, 20, 0xe7d3fbc8);
-      OP (FG, A, B, C, D,  9,  5, 0x21e1cde6);
-      OP (FG, D, A, B, C, 14,  9, 0xc33707d6);
-      OP (FG, C, D, A, B,  3, 14, 0xf4d50d87);
-      OP (FG, B, C, D, A,  8, 20, 0x455a14ed);
-      OP (FG, A, B, C, D, 13,  5, 0xa9e3e905);
-      OP (FG, D, A, B, C,  2,  9, 0xfcefa3f8);
-      OP (FG, C, D, A, B,  7, 14, 0x676f02d9);
-      OP (FG, B, C, D, A, 12, 20, 0x8d2a4c8a);
-
-      /* Round 3.  */
-      OP (FH, A, B, C, D,  5,  4, 0xfffa3942);
-      OP (FH, D, A, B, C,  8, 11, 0x8771f681);
-      OP (FH, C, D, A, B, 11, 16, 0x6d9d6122);
-      OP (FH, B, C, D, A, 14, 23, 0xfde5380c);
-      OP (FH, A, B, C, D,  1,  4, 0xa4beea44);
-      OP (FH, D, A, B, C,  4, 11, 0x4bdecfa9);
-      OP (FH, C, D, A, B,  7, 16, 0xf6bb4b60);
-      OP (FH, B, C, D, A, 10, 23, 0xbebfbc70);
-      OP (FH, A, B, C, D, 13,  4, 0x289b7ec6);
-      OP (FH, D, A, B, C,  0, 11, 0xeaa127fa);
-      OP (FH, C, D, A, B,  3, 16, 0xd4ef3085);
-      OP (FH, B, C, D, A,  6, 23, 0x04881d05);
-      OP (FH, A, B, C, D,  9,  4, 0xd9d4d039);
-      OP (FH, D, A, B, C, 12, 11, 0xe6db99e5);
-      OP (FH, C, D, A, B, 15, 16, 0x1fa27cf8);
-      OP (FH, B, C, D, A,  2, 23, 0xc4ac5665);
-
-      /* Round 4.  */
-      OP (FI, A, B, C, D,  0,  6, 0xf4292244);
-      OP (FI, D, A, B, C,  7, 10, 0x432aff97);
-      OP (FI, C, D, A, B, 14, 15, 0xab9423a7);
-      OP (FI, B, C, D, A,  5, 21, 0xfc93a039);
-      OP (FI, A, B, C, D, 12,  6, 0x655b59c3);
-      OP (FI, D, A, B, C,  3, 10, 0x8f0ccc92);
-      OP (FI, C, D, A, B, 10, 15, 0xffeff47d);
-      OP (FI, B, C, D, A,  1, 21, 0x85845dd1);
-      OP (FI, A, B, C, D,  8,  6, 0x6fa87e4f);
-      OP (FI, D, A, B, C, 15, 10, 0xfe2ce6e0);
-      OP (FI, C, D, A, B,  6, 15, 0xa3014314);
-      OP (FI, B, C, D, A, 13, 21, 0x4e0811a1);
-      OP (FI, A, B, C, D,  4,  6, 0xf7537e82);
-      OP (FI, D, A, B, C, 11, 10, 0xbd3af235);
-      OP (FI, C, D, A, B,  2, 15, 0x2ad7d2bb);
-      OP (FI, B, C, D, A,  9, 21, 0xeb86d391);
-
-      /* Add the starting values of the context.  */
-      A += A_save;
-      B += B_save;
-      C += C_save;
-      D += D_save;
-    }
-
-  /* Put checksum in context given as argument.  */
-  ctx->A = A;
-  ctx->B = B;
-  ctx->C = C;
-  ctx->D = D;
-}
diff --git a/nix/libutil/md5.h b/nix/libutil/md5.h
deleted file mode 100644
index 228d497232..0000000000
--- a/nix/libutil/md5.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/* Declaration of functions and data types used for MD5 sum computing
-   library functions.
-   Copyright (C) 1995,1996,1997,1999,2000,2001 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library 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
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#ifndef _MD5_H
-#define _MD5_H 1
-
-#include <inttypes.h>
-typedef uint32_t md5_uint32;
-typedef uintptr_t md5_uintptr;
-
-/* Structure to save state of computation between the single steps.  */
-struct MD5_CTX
-{
-  md5_uint32 A;
-  md5_uint32 B;
-  md5_uint32 C;
-  md5_uint32 D;
-
-  md5_uint32 total[2];
-  md5_uint32 buflen;
-  char buffer[128] __attribute__ ((__aligned__ (__alignof__ (md5_uint32))));
-};
-
-/*
- * The following three functions are build up the low level used in
- * the functions `md5_stream' and `md5_buffer'.
- */
-
-/* Initialize structure containing state of computation.
-   (RFC 1321, 3.3: Step 3)  */
-extern void MD5_Init (struct MD5_CTX *ctx);
-
-/* Starting with the result of former calls of this function (or the
-   initialization function update the context for the next LEN bytes
-   starting at BUFFER.
-   It is necessary that LEN is a multiple of 64!!! */
-extern void md5_process_block (const void *buffer, size_t len,
-				      struct MD5_CTX *ctx);
-
-/* Starting with the result of former calls of this function (or the
-   initialization function update the context for the next LEN bytes
-   starting at BUFFER.
-   It is NOT required that LEN is a multiple of 64.  */
-extern void MD5_Update (struct MD5_CTX *ctx, const void *buffer, size_t len);
-
-/* Process the remaining bytes in the buffer and put result from CTX
-   in first 16 bytes following RESBUF.  The result is always in little
-   endian byte order, so that a byte-wise output yields to the wanted
-   ASCII representation of the message digest.
-
-   IMPORTANT: On some systems it is required that RESBUF is correctly
-   aligned for a 32 bits value.  */
-extern void *MD5_Final (void *resbuf, struct MD5_CTX *ctx);
-
-
-/* Put result from CTX in first 16 bytes following RESBUF.  The result is
-   always in little endian byte order, so that a byte-wise output yields
-   to the wanted ASCII representation of the message digest.
-
-   IMPORTANT: On some systems it is required that RESBUF is correctly
-   aligned for a 32 bits value.  */
-extern void *md5_read_ctx (const struct MD5_CTX *ctx, void *resbuf);
-
-
-#endif /* md5.h */
diff --git a/nix/libutil/sha1.c b/nix/libutil/sha1.c
deleted file mode 100644
index d9d294d155..0000000000
--- a/nix/libutil/sha1.c
+++ /dev/null
@@ -1,369 +0,0 @@
-/* $Id$ */
-
-/* sha.c - Implementation of the Secure Hash Algorithm
- *
- * Copyright (C) 1995, A.M. Kuchling
- *
- * Distribute and use freely; there are no restrictions on further 
- * dissemination and usage except those imposed by the laws of your 
- * country of residence.
- *
- * Adapted to pike and some cleanup by Niels Möller.
- */
-
-/* $Id$ */
-
-/* SHA: NIST's Secure Hash Algorithm */
-
-/* Based on SHA code originally posted to sci.crypt by Peter Gutmann
-   in message <30ajo5$oe8@ccu2.auckland.ac.nz>.
-   Modified to test for endianness on creation of SHA objects by AMK.
-   Also, the original specification of SHA was found to have a weakness
-   by NSA/NIST.  This code implements the fixed version of SHA.
-*/
-
-/* Here's the first paragraph of Peter Gutmann's posting:
-   
-The following is my SHA (FIPS 180) code updated to allow use of the "fixed"
-SHA, thanks to Jim Gillogly and an anonymous contributor for the information on
-what's changed in the new version.  The fix is a simple change which involves
-adding a single rotate in the initial expansion function.  It is unknown
-whether this is an optimal solution to the problem which was discovered in the
-SHA or whether it's simply a bandaid which fixes the problem with a minimum of
-effort (for example the reengineering of a great many Capstone chips).
-*/
-
-#include "sha1.h"
-
-#include <string.h>
-
-void sha_copy(struct SHA_CTX *dest, struct SHA_CTX *src)
-{
-  unsigned int i;
-
-  dest->count_l=src->count_l;
-  dest->count_h=src->count_h;
-  for(i=0; i<SHA_DIGESTLEN; i++)
-    dest->digest[i]=src->digest[i];
-  for(i=0; i < src->index; i++)
-    dest->block[i] = src->block[i];
-  dest->index = src->index;
-}
-
-
-/* The SHA f()-functions.  The f1 and f3 functions can be optimized to
-   save one boolean operation each - thanks to Rich Schroeppel,
-   rcs@cs.arizona.edu for discovering this */
-
-/*#define f1(x,y,z) ( ( x & y ) | ( ~x & z ) )          // Rounds  0-19 */
-#define f1(x,y,z)   ( z ^ ( x & ( y ^ z ) ) )           /* Rounds  0-19 */
-#define f2(x,y,z)   ( x ^ y ^ z )                       /* Rounds 20-39 */
-/*#define f3(x,y,z) ( ( x & y ) | ( x & z ) | ( y & z ) )   // Rounds 40-59 */
-#define f3(x,y,z)   ( ( x & y ) | ( z & ( x | y ) ) )   /* Rounds 40-59 */
-#define f4(x,y,z)   ( x ^ y ^ z )                       /* Rounds 60-79 */
-
-/* The SHA Mysterious Constants */
-
-#define K1  0x5A827999L                                 /* Rounds  0-19 */
-#define K2  0x6ED9EBA1L                                 /* Rounds 20-39 */
-#define K3  0x8F1BBCDCL                                 /* Rounds 40-59 */
-#define K4  0xCA62C1D6L                                 /* Rounds 60-79 */
-
-/* SHA initial values */
-
-#define h0init  0x67452301L
-#define h1init  0xEFCDAB89L
-#define h2init  0x98BADCFEL
-#define h3init  0x10325476L
-#define h4init  0xC3D2E1F0L
-
-/* 32-bit rotate left - kludged with shifts */
-
-#define ROTL(n,X)  ( ( (X) << (n) ) | ( (X) >> ( 32 - (n) ) ) )
-
-/* The initial expanding function.  The hash function is defined over an
-   80-word expanded input array W, where the first 16 are copies of the input
-   data, and the remaining 64 are defined by
-
-        W[ i ] = W[ i - 16 ] ^ W[ i - 14 ] ^ W[ i - 8 ] ^ W[ i - 3 ]
-
-   This implementation generates these values on the fly in a circular
-   buffer - thanks to Colin Plumb, colin@nyx10.cs.du.edu for this
-   optimization.
-
-   The updated SHA changes the expanding function by adding a rotate of 1
-   bit.  Thanks to Jim Gillogly, jim@rand.org, and an anonymous contributor
-   for this information */
-
-#define expand(W,i) ( W[ i & 15 ] = \
-		      ROTL( 1, ( W[ i & 15 ] ^ W[ (i - 14) & 15 ] ^ \
-				 W[ (i - 8) & 15 ] ^ W[ (i - 3) & 15 ] ) ) )
-
-
-/* The prototype SHA sub-round.  The fundamental sub-round is:
-
-        a' = e + ROTL( 5, a ) + f( b, c, d ) + k + data;
-        b' = a;
-        c' = ROTL( 30, b );
-        d' = c;
-        e' = d;
-
-   but this is implemented by unrolling the loop 5 times and renaming the
-   variables ( e, a, b, c, d ) = ( a', b', c', d', e' ) each iteration.
-   This code is then replicated 20 times for each of the 4 functions, using
-   the next 20 values from the W[] array each time */
-
-#define subRound(a, b, c, d, e, f, k, data) \
-    ( e += ROTL( 5, a ) + f( b, c, d ) + k + data, b = ROTL( 30, b ) )
-
-/* Initialize the SHA values */
-
-void SHA1_Init(struct SHA_CTX *ctx)
-{
-  /* Set the h-vars to their initial values */
-  ctx->digest[ 0 ] = h0init;
-  ctx->digest[ 1 ] = h1init;
-  ctx->digest[ 2 ] = h2init;
-  ctx->digest[ 3 ] = h3init;
-  ctx->digest[ 4 ] = h4init;
-
-  /* Initialize bit count */
-  ctx->count_l = ctx->count_h = 0;
-  
-  /* Initialize buffer */
-  ctx->index = 0;
-}
-
-/* Perform the SHA transformation.  Note that this code, like MD5, seems to
-   break some optimizing compilers due to the complexity of the expressions
-   and the size of the basic block.  It may be necessary to split it into
-   sections, e.g. based on the four subrounds
-
-   Note that this function destroys the data area */
-
-static void sha_transform(struct SHA_CTX *ctx, uint32_t *data )
-{
-  uint32_t A, B, C, D, E;     /* Local vars */
-
-  /* Set up first buffer and local data buffer */
-  A = ctx->digest[0];
-  B = ctx->digest[1];
-  C = ctx->digest[2];
-  D = ctx->digest[3];
-  E = ctx->digest[4];
-
-  /* Heavy mangling, in 4 sub-rounds of 20 interations each. */
-  subRound( A, B, C, D, E, f1, K1, data[ 0] );
-  subRound( E, A, B, C, D, f1, K1, data[ 1] );
-  subRound( D, E, A, B, C, f1, K1, data[ 2] );
-  subRound( C, D, E, A, B, f1, K1, data[ 3] );
-  subRound( B, C, D, E, A, f1, K1, data[ 4] );
-  subRound( A, B, C, D, E, f1, K1, data[ 5] );
-  subRound( E, A, B, C, D, f1, K1, data[ 6] );
-  subRound( D, E, A, B, C, f1, K1, data[ 7] );
-  subRound( C, D, E, A, B, f1, K1, data[ 8] );
-  subRound( B, C, D, E, A, f1, K1, data[ 9] );
-  subRound( A, B, C, D, E, f1, K1, data[10] );
-  subRound( E, A, B, C, D, f1, K1, data[11] );
-  subRound( D, E, A, B, C, f1, K1, data[12] );
-  subRound( C, D, E, A, B, f1, K1, data[13] );
-  subRound( B, C, D, E, A, f1, K1, data[14] );
-  subRound( A, B, C, D, E, f1, K1, data[15] );
-  subRound( E, A, B, C, D, f1, K1, expand( data, 16 ) );
-  subRound( D, E, A, B, C, f1, K1, expand( data, 17 ) );
-  subRound( C, D, E, A, B, f1, K1, expand( data, 18 ) );
-  subRound( B, C, D, E, A, f1, K1, expand( data, 19 ) );
-
-  subRound( A, B, C, D, E, f2, K2, expand( data, 20 ) );
-  subRound( E, A, B, C, D, f2, K2, expand( data, 21 ) );
-  subRound( D, E, A, B, C, f2, K2, expand( data, 22 ) );
-  subRound( C, D, E, A, B, f2, K2, expand( data, 23 ) );
-  subRound( B, C, D, E, A, f2, K2, expand( data, 24 ) );
-  subRound( A, B, C, D, E, f2, K2, expand( data, 25 ) );
-  subRound( E, A, B, C, D, f2, K2, expand( data, 26 ) );
-  subRound( D, E, A, B, C, f2, K2, expand( data, 27 ) );
-  subRound( C, D, E, A, B, f2, K2, expand( data, 28 ) );
-  subRound( B, C, D, E, A, f2, K2, expand( data, 29 ) );
-  subRound( A, B, C, D, E, f2, K2, expand( data, 30 ) );
-  subRound( E, A, B, C, D, f2, K2, expand( data, 31 ) );
-  subRound( D, E, A, B, C, f2, K2, expand( data, 32 ) );
-  subRound( C, D, E, A, B, f2, K2, expand( data, 33 ) );
-  subRound( B, C, D, E, A, f2, K2, expand( data, 34 ) );
-  subRound( A, B, C, D, E, f2, K2, expand( data, 35 ) );
-  subRound( E, A, B, C, D, f2, K2, expand( data, 36 ) );
-  subRound( D, E, A, B, C, f2, K2, expand( data, 37 ) );
-  subRound( C, D, E, A, B, f2, K2, expand( data, 38 ) );
-  subRound( B, C, D, E, A, f2, K2, expand( data, 39 ) );
-
-  subRound( A, B, C, D, E, f3, K3, expand( data, 40 ) );
-  subRound( E, A, B, C, D, f3, K3, expand( data, 41 ) );
-  subRound( D, E, A, B, C, f3, K3, expand( data, 42 ) );
-  subRound( C, D, E, A, B, f3, K3, expand( data, 43 ) );
-  subRound( B, C, D, E, A, f3, K3, expand( data, 44 ) );
-  subRound( A, B, C, D, E, f3, K3, expand( data, 45 ) );
-  subRound( E, A, B, C, D, f3, K3, expand( data, 46 ) );
-  subRound( D, E, A, B, C, f3, K3, expand( data, 47 ) );
-  subRound( C, D, E, A, B, f3, K3, expand( data, 48 ) );
-  subRound( B, C, D, E, A, f3, K3, expand( data, 49 ) );
-  subRound( A, B, C, D, E, f3, K3, expand( data, 50 ) );
-  subRound( E, A, B, C, D, f3, K3, expand( data, 51 ) );
-  subRound( D, E, A, B, C, f3, K3, expand( data, 52 ) );
-  subRound( C, D, E, A, B, f3, K3, expand( data, 53 ) );
-  subRound( B, C, D, E, A, f3, K3, expand( data, 54 ) );
-  subRound( A, B, C, D, E, f3, K3, expand( data, 55 ) );
-  subRound( E, A, B, C, D, f3, K3, expand( data, 56 ) );
-  subRound( D, E, A, B, C, f3, K3, expand( data, 57 ) );
-  subRound( C, D, E, A, B, f3, K3, expand( data, 58 ) );
-  subRound( B, C, D, E, A, f3, K3, expand( data, 59 ) );
-
-  subRound( A, B, C, D, E, f4, K4, expand( data, 60 ) );
-  subRound( E, A, B, C, D, f4, K4, expand( data, 61 ) );
-  subRound( D, E, A, B, C, f4, K4, expand( data, 62 ) );
-  subRound( C, D, E, A, B, f4, K4, expand( data, 63 ) );
-  subRound( B, C, D, E, A, f4, K4, expand( data, 64 ) );
-  subRound( A, B, C, D, E, f4, K4, expand( data, 65 ) );
-  subRound( E, A, B, C, D, f4, K4, expand( data, 66 ) );
-  subRound( D, E, A, B, C, f4, K4, expand( data, 67 ) );
-  subRound( C, D, E, A, B, f4, K4, expand( data, 68 ) );
-  subRound( B, C, D, E, A, f4, K4, expand( data, 69 ) );
-  subRound( A, B, C, D, E, f4, K4, expand( data, 70 ) );
-  subRound( E, A, B, C, D, f4, K4, expand( data, 71 ) );
-  subRound( D, E, A, B, C, f4, K4, expand( data, 72 ) );
-  subRound( C, D, E, A, B, f4, K4, expand( data, 73 ) );
-  subRound( B, C, D, E, A, f4, K4, expand( data, 74 ) );
-  subRound( A, B, C, D, E, f4, K4, expand( data, 75 ) );
-  subRound( E, A, B, C, D, f4, K4, expand( data, 76 ) );
-  subRound( D, E, A, B, C, f4, K4, expand( data, 77 ) );
-  subRound( C, D, E, A, B, f4, K4, expand( data, 78 ) );
-  subRound( B, C, D, E, A, f4, K4, expand( data, 79 ) );
-
-  /* Build message digest */
-  ctx->digest[0] += A;
-  ctx->digest[1] += B;
-  ctx->digest[2] += C;
-  ctx->digest[3] += D;
-  ctx->digest[4] += E;
-}
-
-#if 1
-
-#ifndef EXTRACT_UCHAR
-#define EXTRACT_UCHAR(p)  (*(unsigned char *)(p))
-#endif
-
-#define STRING2INT(s) ((((((EXTRACT_UCHAR(s) << 8)    \
-			 | EXTRACT_UCHAR(s+1)) << 8)  \
-			 | EXTRACT_UCHAR(s+2)) << 8)  \
-			 | EXTRACT_UCHAR(s+3))
-#else
-uint32_t STRING2INT(unsigned char *s)
-{
-  uint32_t r;
-  unsigned int i;
-  
-  for (i = 0, r = 0; i < 4; i++, s++)
-    r = (r << 8) | *s;
-  return r;
-}
-#endif
-
-static void sha_block(struct SHA_CTX *ctx, const unsigned char *block)
-{
-  uint32_t data[SHA_DATALEN];
-  unsigned int i;
-  
-  /* Update block count */
-  if (!++ctx->count_l)
-    ++ctx->count_h;
-
-  /* Endian independent conversion */
-  for (i = 0; i<SHA_DATALEN; i++, block += 4)
-    data[i] = STRING2INT(block);
-
-  sha_transform(ctx, data);
-}
-
-void SHA1_Update(struct SHA_CTX *ctx, const unsigned char *buffer, uint32_t len)
-{
-  if (ctx->index)
-    { /* Try to fill partial block */
-      unsigned left = SHA_DATASIZE - ctx->index;
-      if (len < left)
-	{
-	  memcpy(ctx->block + ctx->index, buffer, len);
-	  ctx->index += len;
-	  return; /* Finished */
-	}
-      else
-	{
-	  memcpy(ctx->block + ctx->index, buffer, left);
-	  sha_block(ctx, ctx->block);
-	  buffer += left;
-	  len -= left;
-	}
-    }
-  while (len >= SHA_DATASIZE)
-    {
-      sha_block(ctx, buffer);
-      buffer += SHA_DATASIZE;
-      len -= SHA_DATASIZE;
-    }
-  if ((ctx->index = len))     /* This assignment is intended */
-    /* Buffer leftovers */
-    memcpy(ctx->block, buffer, len);
-}
-	  
-/* Final wrapup - pad to SHA_DATASIZE-byte boundary with the bit pattern
-   1 0* (64-bit count of bits processed, MSB-first) */
-
-void SHA1_Final(unsigned char *s, struct SHA_CTX *ctx)
-{
-  uint32_t data[SHA_DATALEN];
-  unsigned int i;
-  unsigned int words;
-  
-  i = ctx->index;
-  /* Set the first char of padding to 0x80.  This is safe since there is
-     always at least one byte free */
-  ctx->block[i++] = 0x80;
-
-  /* Fill rest of word */
-  for( ; i & 3; i++)
-    ctx->block[i] = 0;
-
-  /* i is now a multiple of the word size 4 */
-  words = i >> 2;
-  for (i = 0; i < words; i++)
-    data[i] = STRING2INT(ctx->block + 4*i);
-  
-  if (words > (SHA_DATALEN-2))
-    { /* No room for length in this block. Process it and
-       * pad with another one */
-      for (i = words ; i < SHA_DATALEN; i++)
-	data[i] = 0;
-      sha_transform(ctx, data);
-      for (i = 0; i < (SHA_DATALEN-2); i++)
-	data[i] = 0;
-    }
-  else
-    for (i = words ; i < SHA_DATALEN - 2; i++)
-      data[i] = 0;
-  /* Theres 512 = 2^9 bits in one block */
-  data[SHA_DATALEN-2] = (ctx->count_h << 9) | (ctx->count_l >> 23);
-  data[SHA_DATALEN-1] = (ctx->count_l << 9) | (ctx->index << 3);
-  sha_transform(ctx, data);
-  sha_digest(ctx, s);
-}
-
-void sha_digest(struct SHA_CTX *ctx, unsigned char *s)
-{
-  unsigned int i;
-
-  for (i = 0; i < SHA_DIGESTLEN; i++)
-    {
-      *s++ =         ctx->digest[i] >> 24;
-      *s++ = 0xff & (ctx->digest[i] >> 16);
-      *s++ = 0xff & (ctx->digest[i] >> 8);
-      *s++ = 0xff &  ctx->digest[i];
-    }
-}
diff --git a/nix/libutil/sha1.h b/nix/libutil/sha1.h
deleted file mode 100644
index 715040dd48..0000000000
--- a/nix/libutil/sha1.h
+++ /dev/null
@@ -1,28 +0,0 @@
-#ifndef _SHA_H
-#define _SHA_H
-
-#include <inttypes.h>
-
-/* The SHA block size and message digest sizes, in bytes */
-
-#define SHA_DATASIZE    64
-#define SHA_DATALEN     16
-#define SHA_DIGESTSIZE  20
-#define SHA_DIGESTLEN    5
-/* The structure for storing SHA info */
-
-struct SHA_CTX {
-  uint32_t digest[SHA_DIGESTLEN];  /* Message digest */
-  uint32_t count_l, count_h;       /* 64-bit block count */
-  uint8_t block[SHA_DATASIZE];     /* SHA data buffer */
-  unsigned int index;            /* index into buffer */
-};
-
-void SHA1_Init(struct SHA_CTX *ctx);
-void SHA1_Update(struct SHA_CTX *ctx, const unsigned char *buffer, uint32_t len);
-void SHA1_Final(unsigned char *s, struct SHA_CTX *ctx);
-void sha_digest(struct SHA_CTX *ctx, unsigned char *s);
-void sha_copy(struct SHA_CTX *dest, struct SHA_CTX *src);
-
-
-#endif /* !_SHA_H */
diff --git a/nix/libutil/sha256.c b/nix/libutil/sha256.c
deleted file mode 100644
index 63ed0ba430..0000000000
--- a/nix/libutil/sha256.c
+++ /dev/null
@@ -1,238 +0,0 @@
-/* crypto/sha/sha256.c */
-/* ====================================================================
- * Copyright (c) 2004 The OpenSSL Project.  All rights reserved
- * according to the OpenSSL license [found in ./md32_common.h].
- * ====================================================================
- */
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "sha256.h"
-
-int SHA224_Init (SHA256_CTX *c)
-	{
-	c->h[0]=0xc1059ed8UL;	c->h[1]=0x367cd507UL;
-	c->h[2]=0x3070dd17UL;	c->h[3]=0xf70e5939UL;
-	c->h[4]=0xffc00b31UL;	c->h[5]=0x68581511UL;
-	c->h[6]=0x64f98fa7UL;	c->h[7]=0xbefa4fa4UL;
-	c->Nl=0;	c->Nh=0;
-	c->num=0;	c->md_len=SHA224_DIGEST_LENGTH;
-	return 1;
-	}
-
-int SHA256_Init (SHA256_CTX *c)
-	{
-	c->h[0]=0x6a09e667UL;	c->h[1]=0xbb67ae85UL;
-	c->h[2]=0x3c6ef372UL;	c->h[3]=0xa54ff53aUL;
-	c->h[4]=0x510e527fUL;	c->h[5]=0x9b05688cUL;
-	c->h[6]=0x1f83d9abUL;	c->h[7]=0x5be0cd19UL;
-	c->Nl=0;	c->Nh=0;
-	c->num=0;	c->md_len=SHA256_DIGEST_LENGTH;
-	return 1;
-	}
-
-unsigned char *SHA224(const unsigned char *d, size_t n, unsigned char *md)
-	{
-	SHA256_CTX c;
-	static unsigned char m[SHA224_DIGEST_LENGTH];
-
-	if (md == NULL) md=m;
-	SHA224_Init(&c);
-	SHA256_Update(&c,d,n);
-	SHA256_Final(md,&c);
-	return(md);
-	}
-
-unsigned char *SHA256(const unsigned char *d, size_t n, unsigned char *md)
-	{
-	SHA256_CTX c;
-	static unsigned char m[SHA256_DIGEST_LENGTH];
-
-	if (md == NULL) md=m;
-	SHA256_Init(&c);
-	SHA256_Update(&c,d,n);
-	SHA256_Final(md,&c);
-	return(md);
-	}
-
-int SHA224_Update(SHA256_CTX *c, const void *data, size_t len)
-{   return SHA256_Update (c,data,len);   }
-int SHA224_Final (unsigned char *md, SHA256_CTX *c)
-{   return SHA256_Final (md,c);   }
-
-#define	DATA_ORDER_IS_BIG_ENDIAN
-
-#define	HASH_LONG		uint32_t
-#define	HASH_LONG_LOG2		2
-#define	HASH_CTX		SHA256_CTX
-#define	HASH_CBLOCK		SHA_CBLOCK
-#define	HASH_LBLOCK		SHA_LBLOCK
-/*
- * Note that FIPS180-2 discusses "Truncation of the Hash Function Output."
- * default: case below covers for it. It's not clear however if it's
- * permitted to truncate to amount of bytes not divisible by 4. I bet not,
- * but if it is, then default: case shall be extended. For reference.
- * Idea behind separate cases for pre-defined lenghts is to let the
- * compiler decide if it's appropriate to unroll small loops.
- */
-#define	HASH_MAKE_STRING(c,s)	do {	\
-	unsigned long ll;		\
-	unsigned int  n;		\
-	switch ((c)->md_len)		\
-	{   case SHA224_DIGEST_LENGTH:	\
-		for (n=0;n<SHA224_DIGEST_LENGTH/4;n++)	\
-		{   ll=(c)->h[n]; HOST_l2c(ll,(s));   }	\
-		break;			\
-	    case SHA256_DIGEST_LENGTH:	\
-		for (n=0;n<SHA256_DIGEST_LENGTH/4;n++)	\
-		{   ll=(c)->h[n]; HOST_l2c(ll,(s));   }	\
-		break;			\
-	    default:			\
-		if ((c)->md_len > SHA256_DIGEST_LENGTH)	\
-		    return 0;				\
-		for (n=0;n<(c)->md_len/4;n++)		\
-		{   ll=(c)->h[n]; HOST_l2c(ll,(s));   }	\
-		break;			\
-	}				\
-	} while (0)
-
-#define	HASH_UPDATE		SHA256_Update
-#define	HASH_TRANSFORM		SHA256_Transform
-#define	HASH_FINAL		SHA256_Final
-#define	HASH_BLOCK_HOST_ORDER	sha256_block_host_order
-#define	HASH_BLOCK_DATA_ORDER	sha256_block_data_order
-void sha256_block_host_order (SHA256_CTX *ctx, const void *in, size_t num);
-void sha256_block_data_order (SHA256_CTX *ctx, const void *in, size_t num);
-
-#include "md32_common.h"
-
-static const uint32_t K256[64] = {
-	0x428a2f98UL,0x71374491UL,0xb5c0fbcfUL,0xe9b5dba5UL,
-	0x3956c25bUL,0x59f111f1UL,0x923f82a4UL,0xab1c5ed5UL,
-	0xd807aa98UL,0x12835b01UL,0x243185beUL,0x550c7dc3UL,
-	0x72be5d74UL,0x80deb1feUL,0x9bdc06a7UL,0xc19bf174UL,
-	0xe49b69c1UL,0xefbe4786UL,0x0fc19dc6UL,0x240ca1ccUL,
-	0x2de92c6fUL,0x4a7484aaUL,0x5cb0a9dcUL,0x76f988daUL,
-	0x983e5152UL,0xa831c66dUL,0xb00327c8UL,0xbf597fc7UL,
-	0xc6e00bf3UL,0xd5a79147UL,0x06ca6351UL,0x14292967UL,
-	0x27b70a85UL,0x2e1b2138UL,0x4d2c6dfcUL,0x53380d13UL,
-	0x650a7354UL,0x766a0abbUL,0x81c2c92eUL,0x92722c85UL,
-	0xa2bfe8a1UL,0xa81a664bUL,0xc24b8b70UL,0xc76c51a3UL,
-	0xd192e819UL,0xd6990624UL,0xf40e3585UL,0x106aa070UL,
-	0x19a4c116UL,0x1e376c08UL,0x2748774cUL,0x34b0bcb5UL,
-	0x391c0cb3UL,0x4ed8aa4aUL,0x5b9cca4fUL,0x682e6ff3UL,
-	0x748f82eeUL,0x78a5636fUL,0x84c87814UL,0x8cc70208UL,
-	0x90befffaUL,0xa4506cebUL,0xbef9a3f7UL,0xc67178f2UL };
-
-/*
- * FIPS specification refers to right rotations, while our ROTATE macro
- * is left one. This is why you might notice that rotation coefficients
- * differ from those observed in FIPS document by 32-N...
- */
-#define Sigma0(x)	(ROTATE((x),30) ^ ROTATE((x),19) ^ ROTATE((x),10))
-#define Sigma1(x)	(ROTATE((x),26) ^ ROTATE((x),21) ^ ROTATE((x),7))
-#define sigma0(x)	(ROTATE((x),25) ^ ROTATE((x),14) ^ ((x)>>3))
-#define sigma1(x)	(ROTATE((x),15) ^ ROTATE((x),13) ^ ((x)>>10))
-
-#define Ch(x,y,z)	(((x) & (y)) ^ ((~(x)) & (z)))
-#define Maj(x,y,z)	(((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
-
-#define	ROUND_00_15(i,a,b,c,d,e,f,g,h)		do {	\
-	T1 += h + Sigma1(e) + Ch(e,f,g) + K256[i];	\
-	h = Sigma0(a) + Maj(a,b,c);			\
-	d += T1;	h += T1;		} while (0)
-
-#define	ROUND_16_63(i,a,b,c,d,e,f,g,h,X)	do {	\
-	s0 = X[(i+1)&0x0f];	s0 = sigma0(s0);	\
-	s1 = X[(i+14)&0x0f];	s1 = sigma1(s1);	\
-	T1 = X[(i)&0x0f] += s0 + s1 + X[(i+9)&0x0f];	\
-	ROUND_00_15(i,a,b,c,d,e,f,g,h);		} while (0)
-
-static void sha256_block (SHA256_CTX *ctx, const void *in, size_t num, int host)
-	{
-	uint32_t a,b,c,d,e,f,g,h,s0,s1,T1;
-	uint32_t	X[16];
-	int i;
-	const unsigned char *data=in;
-
-			while (num--) {
-
-	a = ctx->h[0];	b = ctx->h[1];	c = ctx->h[2];	d = ctx->h[3];
-	e = ctx->h[4];	f = ctx->h[5];	g = ctx->h[6];	h = ctx->h[7];
-
-	if (host)
-		{
-		const uint32_t *W=(const uint32_t *)data;
-
-		T1 = X[0] = W[0];	ROUND_00_15(0,a,b,c,d,e,f,g,h);
-		T1 = X[1] = W[1];	ROUND_00_15(1,h,a,b,c,d,e,f,g);
-		T1 = X[2] = W[2];	ROUND_00_15(2,g,h,a,b,c,d,e,f);
-		T1 = X[3] = W[3];	ROUND_00_15(3,f,g,h,a,b,c,d,e);
-		T1 = X[4] = W[4];	ROUND_00_15(4,e,f,g,h,a,b,c,d);
-		T1 = X[5] = W[5];	ROUND_00_15(5,d,e,f,g,h,a,b,c);
-		T1 = X[6] = W[6];	ROUND_00_15(6,c,d,e,f,g,h,a,b);
-		T1 = X[7] = W[7];	ROUND_00_15(7,b,c,d,e,f,g,h,a);
-		T1 = X[8] = W[8];	ROUND_00_15(8,a,b,c,d,e,f,g,h);
-		T1 = X[9] = W[9];	ROUND_00_15(9,h,a,b,c,d,e,f,g);
-		T1 = X[10] = W[10];	ROUND_00_15(10,g,h,a,b,c,d,e,f);
-		T1 = X[11] = W[11];	ROUND_00_15(11,f,g,h,a,b,c,d,e);
-		T1 = X[12] = W[12];	ROUND_00_15(12,e,f,g,h,a,b,c,d);
-		T1 = X[13] = W[13];	ROUND_00_15(13,d,e,f,g,h,a,b,c);
-		T1 = X[14] = W[14];	ROUND_00_15(14,c,d,e,f,g,h,a,b);
-		T1 = X[15] = W[15];	ROUND_00_15(15,b,c,d,e,f,g,h,a);
-
-		data += SHA256_CBLOCK;
-		}
-	else
-		{
-		uint32_t l;
-
-		HOST_c2l(data,l); T1 = X[0] = l;  ROUND_00_15(0,a,b,c,d,e,f,g,h);
-		HOST_c2l(data,l); T1 = X[1] = l;  ROUND_00_15(1,h,a,b,c,d,e,f,g);
-		HOST_c2l(data,l); T1 = X[2] = l;  ROUND_00_15(2,g,h,a,b,c,d,e,f);
-		HOST_c2l(data,l); T1 = X[3] = l;  ROUND_00_15(3,f,g,h,a,b,c,d,e);
-		HOST_c2l(data,l); T1 = X[4] = l;  ROUND_00_15(4,e,f,g,h,a,b,c,d);
-		HOST_c2l(data,l); T1 = X[5] = l;  ROUND_00_15(5,d,e,f,g,h,a,b,c);
-		HOST_c2l(data,l); T1 = X[6] = l;  ROUND_00_15(6,c,d,e,f,g,h,a,b);
-		HOST_c2l(data,l); T1 = X[7] = l;  ROUND_00_15(7,b,c,d,e,f,g,h,a);
-		HOST_c2l(data,l); T1 = X[8] = l;  ROUND_00_15(8,a,b,c,d,e,f,g,h);
-		HOST_c2l(data,l); T1 = X[9] = l;  ROUND_00_15(9,h,a,b,c,d,e,f,g);
-		HOST_c2l(data,l); T1 = X[10] = l; ROUND_00_15(10,g,h,a,b,c,d,e,f);
-		HOST_c2l(data,l); T1 = X[11] = l; ROUND_00_15(11,f,g,h,a,b,c,d,e);
-		HOST_c2l(data,l); T1 = X[12] = l; ROUND_00_15(12,e,f,g,h,a,b,c,d);
-		HOST_c2l(data,l); T1 = X[13] = l; ROUND_00_15(13,d,e,f,g,h,a,b,c);
-		HOST_c2l(data,l); T1 = X[14] = l; ROUND_00_15(14,c,d,e,f,g,h,a,b);
-		HOST_c2l(data,l); T1 = X[15] = l; ROUND_00_15(15,b,c,d,e,f,g,h,a);
-		}
-
-	for (i=16;i<64;i+=8)
-		{
-		ROUND_16_63(i+0,a,b,c,d,e,f,g,h,X);
-		ROUND_16_63(i+1,h,a,b,c,d,e,f,g,X);
-		ROUND_16_63(i+2,g,h,a,b,c,d,e,f,X);
-		ROUND_16_63(i+3,f,g,h,a,b,c,d,e,X);
-		ROUND_16_63(i+4,e,f,g,h,a,b,c,d,X);
-		ROUND_16_63(i+5,d,e,f,g,h,a,b,c,X);
-		ROUND_16_63(i+6,c,d,e,f,g,h,a,b,X);
-		ROUND_16_63(i+7,b,c,d,e,f,g,h,a,X);
-		}
-
-	ctx->h[0] += a;	ctx->h[1] += b;	ctx->h[2] += c;	ctx->h[3] += d;
-	ctx->h[4] += e;	ctx->h[5] += f;	ctx->h[6] += g;	ctx->h[7] += h;
-
-			}
-	}
-
-/*
- * Idea is to trade couple of cycles for some space. On IA-32 we save
- * about 4K in "big footprint" case. In "small footprint" case any gain
- * is appreciated:-)
- */
-void HASH_BLOCK_HOST_ORDER (SHA256_CTX *ctx, const void *in, size_t num)
-{   sha256_block (ctx,in,num,1);   }
-
-void HASH_BLOCK_DATA_ORDER (SHA256_CTX *ctx, const void *in, size_t num)
-{   sha256_block (ctx,in,num,0);   }
-
-
diff --git a/nix/libutil/sha256.h b/nix/libutil/sha256.h
deleted file mode 100644
index 0686b84f0e..0000000000
--- a/nix/libutil/sha256.h
+++ /dev/null
@@ -1,35 +0,0 @@
-#ifndef _SHA256_H
-#define _SHA256_H 1
-
-#include <inttypes.h>
-
-#define SHA_LBLOCK	16
-#define SHA_CBLOCK	(SHA_LBLOCK*4)	/* SHA treats input data as a
-					 * contiguous array of 32 bit
-					 * wide big-endian values. */
-
-#define SHA256_CBLOCK	(SHA_LBLOCK*4)	/* SHA-256 treats input data as a
-					 * contiguous array of 32 bit
-					 * wide big-endian values. */
-#define SHA224_DIGEST_LENGTH	28
-#define SHA256_DIGEST_LENGTH	32
-
-typedef struct SHA256state_st
-	{
-	uint32_t h[8];
-	uint32_t Nl,Nh;
-	uint32_t data[SHA_LBLOCK];
-	unsigned int num,md_len;
-	} SHA256_CTX;
-
-int SHA224_Init(SHA256_CTX *c);
-int SHA224_Update(SHA256_CTX *c, const void *data, size_t len);
-int SHA224_Final(unsigned char *md, SHA256_CTX *c);
-unsigned char *SHA224(const unsigned char *d, size_t n,unsigned char *md);
-int SHA256_Init(SHA256_CTX *c);
-int SHA256_Update(SHA256_CTX *c, const void *data, size_t len);
-int SHA256_Final(unsigned char *md, SHA256_CTX *c);
-unsigned char *SHA256(const unsigned char *d, size_t n,unsigned char *md);
-void SHA256_Transform(SHA256_CTX *c, const unsigned char *data);
-
-#endif