Replaced by md5_sha1_sum.c

1 files changed, 0 insertions, 1102 deletions

diff --git a/coreutils/md5sum.c b/coreutils/md5sum.c
deleted file mode 100644
index c0294f4..0000000
--- a/coreutils/md5sum.c
+++ /dev/null
@@ -1,1102 +0,0 @@
-/* md5sum.c - Compute MD5 checksum of files or strings according to the
- *            definition of MD5 in RFC 1321 from April 1992.
- * Copyright (C) 1995-1999 Free Software Foundation, Inc.
- *
- * 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, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-/* Written by Ulrich Drepper <drepper@gnu.ai.mit.edu> */
-/* Hacked to work with BusyBox by Alfred M. Szmidt <ams@trillian.itslinux.org> */
-
-/*
- * June 29, 2001        Manuel Novoa III
- *
- * Added MD5SUM_SIZE_VS_SPEED configuration option.
- *
- * Current valid values, with data from my system for comparison, are:
- *   (using uClibc and running on linux-2.4.4.tar.bz2)
- *                     user times (sec)  text size (386)
- *     0 (fastest)         1.1                6144
- *     1                   1.4                5392
- *     2                   3.0                5088
- *     3 (smallest)        5.1                4912
- */
-
-#define MD5SUM_SIZE_VS_SPEED 2
-
-/**********************************************************************/
-
-#include <stdio.h>
-#include <errno.h>
-#include <ctype.h>
-#include <getopt.h>
-#include <stdlib.h>
-#include <string.h>
-#include <endian.h>
-#include <sys/types.h>
-#if defined HAVE_LIMITS_H
-# include <limits.h>
-#endif
-#include "busybox.h"
-
-/* For some silly reason, this file uses backwards TRUE and FALSE conventions */
-#undef TRUE
-#undef FALSE
-#define FALSE   ((int) 1)
-#define TRUE    ((int) 0)
-
-//----------------------------------------------------------------------------
-//--------md5.c
-//----------------------------------------------------------------------------
-
-/* md5.c - Functions to compute MD5 message digest of files or memory blocks
- *         according to the definition of MD5 in RFC 1321 from April 1992.
- */
-
-/* Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.  */
-
-//----------------------------------------------------------------------------
-//--------md5.h
-//----------------------------------------------------------------------------
-
-/* md5.h - Declaration of functions and data types used for MD5 sum
-   computing library functions. */
-
-typedef u_int32_t md5_uint32;
-
-/* 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];
-};
-
-/*
- * 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)  */
-static void md5_init_ctx __P((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!!! */
-static void md5_process_block __P((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.  */
-static void md5_process_bytes __P((const void *buffer, size_t len,
-								   struct md5_ctx * ctx));
-
-/* 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.  */
-static void *md5_finish_ctx __P((struct md5_ctx * ctx, void *resbuf));
-
-
-
-
-/* Compute MD5 message digest for bytes read from STREAM.  The
-   resulting message digest number will be written into the 16 bytes
-   beginning at RESBLOCK.  */
-static int md5_stream __P((FILE * stream, void *resblock));
-
-/* Compute MD5 message digest for LEN bytes beginning at BUFFER.  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.  */
-static void *md5_buffer __P((const char *buffer, size_t len, void *resblock));
-
-//----------------------------------------------------------------------------
-//--------end of md5.h
-//----------------------------------------------------------------------------
-
-/* Handle endian-ness */
-#if __BYTE_ORDER == __LITTLE_ENDIAN
-#define SWAP(n) (n)
-#else
-#define SWAP(n) ((n << 24) | ((n&65280)<<8) | ((n&16711680)>>8) | (n>>24))
-#endif
-
-
-
-#if MD5SUM_SIZE_VS_SPEED == 0
-/* 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, ...  */  };
-#endif
-
-/* 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;
-}
-
-/* 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.  */
-static void *md5_finish_ctx(struct md5_ctx *ctx, void *resbuf)
-{
-	/* 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;
-#if MD5SUM_SIZE_VS_SPEED > 0
-	memset(&ctx->buffer[bytes], 0, pad);
-	ctx->buffer[bytes] = 0x80;
-#else
-	memcpy(&ctx->buffer[bytes], fillbuf, pad);
-#endif
-
-	/* 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);
-
-/* 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.  */
-	((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;
-}
-
-/* Compute MD5 message digest for bytes read from STREAM.  The
-   resulting message digest number will be written into the 16 bytes
-   beginning at RESBLOCK.  */
-static int md5_stream(FILE * stream, void *resblock)
-{
-	/* Important: BLOCKSIZE must be a multiple of 64.  */
-	static const int BLOCKSIZE = 4096;
-	struct md5_ctx ctx;
-	char buffer[BLOCKSIZE + 72];
-	size_t sum;
-
-	/* Initialize the computation context.  */
-	md5_init_ctx(&ctx);
-
-	/* Iterate over full file contents.  */
-	while (1) {
-		/* We read the file in blocks of BLOCKSIZE bytes.  One call of the
-		   computation function processes the whole buffer so that with the
-		   next round of the loop another block can be read.  */
-		size_t n;
-
-		sum = 0;
-
-		/* Read block.  Take care for partial reads.  */
-		do {
-			n = fread(buffer + sum, 1, BLOCKSIZE - sum, stream);
-
-			sum += n;
-		}
-		while (sum < BLOCKSIZE && n != 0);
-		if (n == 0 && ferror(stream))
-			return 1;
-
-		/* If end of file is reached, end the loop.  */
-		if (n == 0)
-			break;
-
-		/* Process buffer with BLOCKSIZE bytes.  Note that
-		   BLOCKSIZE % 64 == 0
-		 */
-		md5_process_block(buffer, BLOCKSIZE, &ctx);
-	}
-
-	/* Add the last bytes if necessary.  */
-	if (sum > 0)
-		md5_process_bytes(buffer, sum, &ctx);
-
-	/* Construct result in desired memory.  */
-	md5_finish_ctx(&ctx, resblock);
-	return 0;
-}
-
-/* Compute MD5 message digest for LEN bytes beginning at BUFFER.  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.  */
-static void *md5_buffer(const char *buffer, size_t len, void *resblock)
-{
-	struct md5_ctx ctx;
-
-	/* Initialize the computation context.  */
-	md5_init_ctx(&ctx);
-
-	/* Process whole buffer but last len % 64 bytes.  */
-	md5_process_bytes(buffer, len, &ctx);
-
-	/* Put result in desired memory area.  */
-	return md5_finish_ctx(&ctx, resblock);
-}
-
-static void md5_process_bytes(const void *buffer, size_t len,
-							  struct md5_ctx *ctx)
-{
-	/* 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 (left_over + add > 64) {
-			md5_process_block(ctx->buffer, (left_over + add) & ~63, ctx);
-			/* The regions in the following copy operation cannot overlap.  */
-			memcpy(ctx->buffer, &ctx->buffer[(left_over + add) & ~63],
-				   (left_over + add) & 63);
-			ctx->buflen = (left_over + add) & 63;
-		}
-
-		buffer = (const char *) buffer + add;
-		len -= add;
-	}
-
-	/* Process available complete blocks.  */
-	if (len > 64) {
-		md5_process_block(buffer, len & ~63, ctx);
-		buffer = (const char *) buffer + (len & ~63);
-		len &= 63;
-	}
-
-	/* Move remaining bytes in internal buffer.  */
-	if (len > 0) {
-		memcpy(ctx->buffer, buffer, len);
-		ctx->buflen = len;
-	}
-}
-
-/* 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.  */
-static void md5_process_block(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;
-
-#if MD5SUM_SIZE_VS_SPEED > 0
-	static const md5_uint32 C_array[] = {
-		/* round 1 */
-		0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee,
-		0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501,
-		0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be,
-		0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821,
-		/* round 2 */
-		0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa,
-		0xd62f105d, 0x2441453, 0xd8a1e681, 0xe7d3fbc8,
-		0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed,
-		0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a,
-		/* round 3 */
-		0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c,
-		0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70,
-		0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x4881d05,
-		0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665,
-		/* round 4 */
-		0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039,
-		0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1,
-		0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
-		0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391
-	};
-
-	static const char P_array[] = {
-#if MD5SUM_SIZE_VS_SPEED > 1
-		0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,	/* 1 */
-#endif
-		1, 6, 11, 0, 5, 10, 15, 4, 9, 14, 3, 8, 13, 2, 7, 12,	/* 2 */
-		5, 8, 11, 14, 1, 4, 7, 10, 13, 0, 3, 6, 9, 12, 15, 2,	/* 3 */
-		0, 7, 14, 5, 12, 3, 10, 1, 8, 15, 6, 13, 4, 11, 2, 9	/* 4 */
-	};
-
-#if MD5SUM_SIZE_VS_SPEED > 1
-	static const char S_array[] = {
-		7, 12, 17, 22,
-		5, 9, 14, 20,
-		4, 11, 16, 23,
-		6, 10, 15, 21
-	};
-#endif
-#endif
-
-	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;
-
-#if MD5SUM_SIZE_VS_SPEED > 1
-#define CYCLIC(w, s) (w = (w << s) | (w >> (32 - s)))
-
-		const md5_uint32 *pc;
-		const char *pp;
-		const char *ps;
-		int i;
-		md5_uint32 temp;
-
-		for (i = 0; i < 16; i++) {
-			cwp[i] = SWAP(words[i]);
-		}
-		words += 16;
-
-#if MD5SUM_SIZE_VS_SPEED > 2
-		pc = C_array;
-		pp = P_array;
-		ps = S_array - 4;
-
-		for (i = 0; i < 64; i++) {
-			if ((i & 0x0f) == 0)
-				ps += 4;
-			temp = A;
-			switch (i >> 4) {
-			case 0:
-				temp += FF(B, C, D);
-				break;
-			case 1:
-				temp += FG(B, C, D);
-				break;
-			case 2:
-				temp += FH(B, C, D);
-				break;
-			case 3:
-				temp += FI(B, C, D);
-			}
-			temp += cwp[(int) (*pp++)] + *pc++;
-			CYCLIC(temp, ps[i & 3]);
-			temp += B;
-			A = D;
-			D = C;
-			C = B;
-			B = temp;
-		}
-#else
-		pc = C_array;
-		pp = P_array;
-		ps = S_array;
-
-		for (i = 0; i < 16; i++) {
-			temp = A + FF(B, C, D) + cwp[(int) (*pp++)] + *pc++;
-			CYCLIC(temp, ps[i & 3]);
-			temp += B;
-			A = D;
-			D = C;
-			C = B;
-			B = temp;
-		}
-
-		ps += 4;
-		for (i = 0; i < 16; i++) {
-			temp = A + FG(B, C, D) + cwp[(int) (*pp++)] + *pc++;
-			CYCLIC(temp, ps[i & 3]);
-			temp += B;
-			A = D;
-			D = C;
-			C = B;
-			B = temp;
-		}
-		ps += 4;
-		for (i = 0; i < 16; i++) {
-			temp = A + FH(B, C, D) + cwp[(int) (*pp++)] + *pc++;
-			CYCLIC(temp, ps[i & 3]);
-			temp += B;
-			A = D;
-			D = C;
-			C = B;
-			B = temp;
-		}
-		ps += 4;
-		for (i = 0; i < 16; i++) {
-			temp = A + FI(B, C, D) + cwp[(int) (*pp++)] + *pc++;
-			CYCLIC(temp, ps[i & 3]);
-			temp += B;
-			A = D;
-			D = C;
-			C = B;
-			B = temp;
-		}
-
-#endif
-#else
-		/* 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.  */
-		/* gcc 2.95.4 seems to be --aaronl */
-#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
-		 */
-
-#if MD5SUM_SIZE_VS_SPEED == 1
-		const md5_uint32 *pc;
-		const char *pp;
-		int i;
-#endif
-
-		/* Round 1.  */
-#if MD5SUM_SIZE_VS_SPEED == 1
-		pc = C_array;
-		for (i = 0; i < 4; i++) {
-			OP(A, B, C, D, 7, *pc++);
-			OP(D, A, B, C, 12, *pc++);
-			OP(C, D, A, B, 17, *pc++);
-			OP(B, C, D, A, 22, *pc++);
-		}
-#else
-		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);
-#endif
-
-		/* 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.  */
-#if MD5SUM_SIZE_VS_SPEED == 1
-		pp = P_array;
-		for (i = 0; i < 4; i++) {
-			OP(FG, A, B, C, D, (int) (*pp++), 5, *pc++);
-			OP(FG, D, A, B, C, (int) (*pp++), 9, *pc++);
-			OP(FG, C, D, A, B, (int) (*pp++), 14, *pc++);
-			OP(FG, B, C, D, A, (int) (*pp++), 20, *pc++);
-		}
-#else
-		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);
-#endif
-
-		/* Round 3.  */
-#if MD5SUM_SIZE_VS_SPEED == 1
-		for (i = 0; i < 4; i++) {
-			OP(FH, A, B, C, D, (int) (*pp++), 4, *pc++);
-			OP(FH, D, A, B, C, (int) (*pp++), 11, *pc++);
-			OP(FH, C, D, A, B, (int) (*pp++), 16, *pc++);
-			OP(FH, B, C, D, A, (int) (*pp++), 23, *pc++);
-		}
-#else
-		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);
-#endif
-
-		/* Round 4.  */
-#if MD5SUM_SIZE_VS_SPEED == 1
-		for (i = 0; i < 4; i++) {
-			OP(FI, A, B, C, D, (int) (*pp++), 6, *pc++);
-			OP(FI, D, A, B, C, (int) (*pp++), 10, *pc++);
-			OP(FI, C, D, A, B, (int) (*pp++), 15, *pc++);
-			OP(FI, B, C, D, A, (int) (*pp++), 21, *pc++);
-		}
-#else
-		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);
-#endif
-#endif
-
-		/* 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;
-}
-
-//----------------------------------------------------------------------------
-//--------end of md5.c
-//----------------------------------------------------------------------------
-
-#define ISWHITE(c) ((c) == ' ' || (c) == '\t')
-#define ISXDIGIT(c) (isxdigit (c))
-
-/* The minimum length of a valid digest line in a file produced
-   by `md5sum FILE' and read by `md5sum -c'.  This length does
-   not include any newline character at the end of a line.  */
-static const int MIN_DIGEST_LINE_LENGTH = 35;	/* 32 - message digest length
-												   2 - blank and binary indicator
-												   1 - minimum filename length */
-
-static int have_read_stdin;	/* Nonzero if any of the files read were
-							   the standard input. */
-
-static int status_only = 0;	/* With -c, don't generate any output.
-							   The exit code indicates success or failure */
-static int warn = 0;	/* With -w, print a message to standard error warning
-						   about each improperly formatted MD5 checksum line */
-
-static int split_3(char *s, size_t s_len, unsigned char **u, char **w)
-{
-	size_t i = 0;
-	int escaped_filename = 0;
-
-	while (ISWHITE(s[i]))
-		++i;
-
-	/* The line must have at least 35 (36 if the first is a backslash)
-	   more characters to contain correct message digest information.
-	   Ignore this line if it is too short.  */
-	if (!(s_len - i >= MIN_DIGEST_LINE_LENGTH
-		  || (s[i] == '\\' && s_len - i >= 1 + MIN_DIGEST_LINE_LENGTH)))
-		return FALSE;
-
-	if (s[i] == '\\') {
-		++i;
-		escaped_filename = 1;
-	}
-	*u = (unsigned char *) &s[i];
-
-	/* The first field has to be the 32-character hexadecimal
-	   representation of the message digest.  If it is not followed
-	   immediately by a white space it's an error.  */
-	i += 32;
-	if (!ISWHITE(s[i]))
-		return FALSE;
-
-	s[i++] = '\0';
-
-	if (s[i] != ' ' && s[i] != '*')
-		return FALSE;
-
-	/* All characters between the type indicator and end of line are
-	   significant -- that includes leading and trailing white space.  */
-	*w = &s[++i];
-
-	if (escaped_filename) {
-		/* Translate each `\n' string in the file name to a NEWLINE,
-		   and each `\\' string to a backslash.  */
-
-		char *dst = &s[i];
-
-		while (i < s_len) {
-			switch (s[i]) {
-			case '\\':
-				if (i == s_len - 1) {
-					/* A valid line does not end with a backslash.  */
-					return FALSE;
-				}
-				++i;
-				switch (s[i++]) {
-				case 'n':
-					*dst++ = '\n';
-					break;
-				case '\\':
-					*dst++ = '\\';
-					break;
-				default:
-					/* Only `\' or `n' may follow a backslash.  */
-					return FALSE;
-				}
-				break;
-
-			case '\0':
-				/* The file name may not contain a NUL.  */
-				return FALSE;
-				break;
-
-			default:
-				*dst++ = s[i++];
-				break;
-			}
-		}
-		*dst = '\0';
-	}
-	return TRUE;
-}
-
-static inline int hex_digits(unsigned char const *s)
-{
-	while (*s) {
-		if (!ISXDIGIT(*s))
-			return TRUE;
-		++s;
-	}
-	return FALSE;
-}
-
-/* An interface to md5_stream.  Operate on FILENAME (it may be "-") and
-   put the result in *MD5_RESULT.  Return non-zero upon failure, zero
-   to indicate success.  */
-static int md5_file(const char *filename, unsigned char *md5_result)
-{
-	FILE *fp;
-
-	if (filename[0] == '-' && filename[1] == '\0') {
-		have_read_stdin = 1;
-		fp = stdin;
-	} else {
-		fp = bb_wfopen(filename, "r");
-		if (fp == NULL)
-			return FALSE;
-	}
-
-	if (md5_stream(fp, md5_result)) {
-		bb_perror_msg("%s", filename);
-
-		if (fp != stdin)
-			fclose(fp);
-		return FALSE;
-	}
-
-	if (fp != stdin && fclose(fp) == EOF) {
-		bb_perror_msg("%s", filename);
-		return FALSE;
-	}
-
-	return TRUE;
-}
-
-static int md5_check(const char *checkfile_name)
-{
-	FILE *checkfile_stream;
-	int n_properly_formated_lines = 0;
-	int n_mismatched_checksums = 0;
-	int n_open_or_read_failures = 0;
-	unsigned char md5buffer[16];
-	size_t line_number;
-	char line[BUFSIZ];
-
-	if (checkfile_name[0] == '-' && checkfile_name[1] == '\0') {
-		have_read_stdin = 1;
-		checkfile_stream = stdin;
-	} else {
-		checkfile_stream = bb_wfopen(checkfile_name, "r");
-		if (checkfile_stream == NULL)
-			return FALSE;
-	}
-
-	line_number = 0;
-
-	do {
-		char *filename;
-		unsigned char *md5num;
-		int line_length;
-
-		++line_number;
-
-		fgets(line, BUFSIZ - 1, checkfile_stream);
-		line_length = strlen(line);
-
-		if (line_length <= 0 || line == NULL)
-			break;
-
-		/* Ignore comment lines, which begin with a '#' character.  */
-		if (line[0] == '#')
-			continue;
-
-		/* Remove any trailing newline.  */
-		if (line[line_length - 1] == '\n')
-			line[--line_length] = '\0';
-
-		if (split_3(line, line_length, &md5num, &filename)
-			|| !hex_digits(md5num)) {
-			if (warn) {
-				bb_error_msg
-					("%s: %lu: improperly formatted MD5 checksum line",
-					 checkfile_name, (unsigned long) line_number);
-			}
-		} else {
-			static const char bin2hex[] = {
-				'0', '1', '2', '3',
-				'4', '5', '6', '7',
-				'8', '9', 'a', 'b',
-				'c', 'd', 'e', 'f'
-			};
-
-			++n_properly_formated_lines;
-
-			if (md5_file(filename, md5buffer)) {
-				++n_open_or_read_failures;
-				if (!status_only) {
-					printf("%s: FAILED open or read\n", filename);
-					fflush(stdout);
-				}
-			} else {
-				size_t cnt;
-
-				/* Compare generated binary number with text representation
-				   in check file.  Ignore case of hex digits.  */
-				for (cnt = 0; cnt < 16; ++cnt) {
-					if (tolower(md5num[2 * cnt])
-						!= bin2hex[md5buffer[cnt] >> 4]
-						|| (tolower(md5num[2 * cnt + 1])
-							!= (bin2hex[md5buffer[cnt] & 0xf])))
-						break;
-				}
-				if (cnt != 16)
-					++n_mismatched_checksums;
-
-				if (!status_only) {
-					printf("%s: %s\n", filename,
-						   (cnt != 16 ? "FAILED" : "OK"));
-					fflush(stdout);
-				}
-			}
-		}
-	}
-
-	while (!feof(checkfile_stream) && !ferror(checkfile_stream));
-
-	if (ferror(checkfile_stream)) {
-		bb_error_msg("%s: read error", checkfile_name);
-		return FALSE;
-	}
-
-	if (checkfile_stream != stdin && fclose(checkfile_stream) == EOF) {
-		bb_perror_msg("md5sum: %s", checkfile_name);
-		return FALSE;
-	}
-
-	if (n_properly_formated_lines == 0) {
-		/* Warn if no tests are found.  */
-		bb_error_msg("%s: no properly formatted MD5 checksum lines found",
-					 checkfile_name);
-		return FALSE;
-	} else {
-		if (!status_only) {
-			int n_computed_checkums = (n_properly_formated_lines
-									   - n_open_or_read_failures);
-
-			if (n_open_or_read_failures > 0) {
-				bb_error_msg
-					("WARNING: %d of %d listed files could not be read",
-					 n_open_or_read_failures, n_properly_formated_lines);
-				return FALSE;
-			}
-
-			if (n_mismatched_checksums > 0) {
-				bb_error_msg
-					("WARNING: %d of %d computed checksums did NOT match",
-					 n_mismatched_checksums, n_computed_checkums);
-				return FALSE;
-			}
-		}
-	}
-
-	return ((n_properly_formated_lines > 0 && n_mismatched_checksums == 0
-			 && n_open_or_read_failures == 0) ? 0 : 1);
-}
-
-int md5sum_main(int argc, char **argv)
-{
-	unsigned char md5buffer[16];
-	int do_check = 0;
-	int opt;
-	char **string = NULL;
-	size_t n_strings = 0;
-	size_t err = 0;
-	char file_type_specified = 0;
-	char binary = 0;
-
-	while ((opt = getopt(argc, argv, "g:bcstw")) != -1) {
-		switch (opt) {
-		case 'g':{		/* read a string */
-			if (string == NULL)
-				string = (char **) xmalloc((argc - 1) * sizeof(char *));
-
-			string[n_strings++] = optarg;
-			break;
-		}
-
-		case 'b':		/* read files in binary mode */
-			file_type_specified = 1;
-			binary = 1;
-			break;
-
-		case 'c':		/* check MD5 sums against given list */
-			do_check = 1;
-			break;
-
-		case 's':		/* don't output anything, status code shows success */
-			status_only = 1;
-			warn = 0;
-			break;
-
-		case 't':		/* read files in text mode (default) */
-			file_type_specified = 1;
-			binary = 0;
-			break;
-
-		case 'w':		/* warn about improperly formated MD5 checksum lines */
-			status_only = 0;
-			warn = 1;
-			break;
-
-		default:
-			bb_show_usage();
-		}
-	}
-
-	if (file_type_specified && do_check) {
-		bb_error_msg_and_die
-			("the -b and -t options are meaningless when verifying checksums");
-	}
-
-	if (n_strings > 0 && do_check) {
-		bb_error_msg_and_die("the -g and -c options are mutually exclusive");
-	}
-
-	if (status_only && !do_check) {
-		bb_error_msg_and_die
-			("the -s option is meaningful only when verifying checksums");
-	}
-
-	if (warn && !do_check) {
-		bb_error_msg_and_die
-			("the -w option is meaningful only when verifying checksums");
-	}
-
-	if (n_strings > 0) {
-		size_t i;
-
-		if (optind < argc) {
-			bb_error_msg_and_die("no files may be specified when using -g");
-		}
-		for (i = 0; i < n_strings; ++i) {
-			size_t cnt;
-
-			md5_buffer(string[i], strlen(string[i]), md5buffer);
-
-			for (cnt = 0; cnt < 16; ++cnt)
-				printf("%02x", md5buffer[cnt]);
-
-			printf("  \"%s\"\n", string[i]);
-		}
-	} else if (do_check) {
-		if (optind + 1 < argc) {
-			bb_error_msg("only one argument may be specified when using -c");
-		}
-
-		err = md5_check((optind == argc) ? "-" : argv[optind]);
-	} else {
-		if (optind == argc)
-			argv[argc++] = "-";
-
-		for (; optind < argc; ++optind) {
-			int fail;
-			char *file = argv[optind];
-
-			fail = md5_file(file, md5buffer);
-			err |= fail;
-			if (!fail && file[0] == '-' && file[1] == '\0') {
-				size_t i;
-
-				for (i = 0; i < 16; ++i)
-					printf("%02x", md5buffer[i]);
-				putchar('\n');
-			} else if (!fail) {
-				size_t i;
-
-				/* Output a leading backslash if the file name contains
-				   a newline or backslash.  */
-				if (strchr(file, '\n') || strchr(file, '\\'))
-					putchar('\\');
-
-				for (i = 0; i < 16; ++i)
-					printf("%02x", md5buffer[i]);
-
-				putchar(' ');
-				if (binary)
-					putchar('*');
-				else
-					putchar(' ');
-
-				/* Translate each NEWLINE byte to the string, "\\n",
-				   and each backslash to "\\\\".  */
-				for (i = 0; i < strlen(file); ++i) {
-					switch (file[i]) {
-					case '\n':
-						fputs("\\n", stdout);
-						break;
-
-					case '\\':
-						fputs("\\\\", stdout);
-						break;
-
-					default:
-						putchar(file[i]);
-						break;
-					}
-				}
-				putchar('\n');
-			}
-		}
-	}
-
-	if (fclose(stdout) == EOF) {
-		bb_error_msg_and_die("write error");
-	}
-
-	if (have_read_stdin && fclose(stdin) == EOF) {
-		bb_error_msg_and_die(bb_msg_standard_input);
-	}
-
-	if (err == 0)
-		return EXIT_SUCCESS;
-	else
-		return EXIT_FAILURE;
-}