libbb: disable a second md5 implementation which managed to creep in :)

function                                             old     new   delta
sha512_end                                           239     237      -2
sha256_end                                           162     160      -2
sha1_end                                             191     189      -2
md5_end                                              168     166      -2
__md5__magic                                           4       -      -4
md5_crypt                                            627     621      -6
static.S                                              16       -     -16
__md5_Init                                            42       -     -42
static.P                                              64       -     -64
__md5_Final                                          131       -    -131
__md5_Update                                         153       -    -153
static.C                                             268      12    -256
__md5_Transform                                      293       -    -293
------------------------------------------------------------------------------
(add/remove: 0/7 grow/shrink: 0/6 up/down: 0/-973)           Total: -973 bytes

1 files changed, 263 insertions, 279 deletions

diff --git a/libbb/md5.c b/libbb/md5.c
index 4ab06eb..eb15d75 100644
--- a/libbb/md5.c
+++ b/libbb/md5.c
@@ -15,8 +15,11 @@
 
 #include "libbb.h"
 
-#if CONFIG_MD5_SIZE_VS_SPEED < 0 || CONFIG_MD5_SIZE_VS_SPEED > 3
-# define MD5_SIZE_VS_SPEED 2
+/* 0: fastest, 3: smallest */
+#if CONFIG_MD5_SIZE_VS_SPEED < 0
+# define MD5_SIZE_VS_SPEED 0
+#elif CONFIG_MD5_SIZE_VS_SPEED > 3
+# define MD5_SIZE_VS_SPEED 3
 #else
 # define MD5_SIZE_VS_SPEED CONFIG_MD5_SIZE_VS_SPEED
 #endif
@@ -30,7 +33,6 @@ void FAST_FUNC md5_begin(md5_ctx_t *ctx)
 	ctx->B = 0xefcdab89;
 	ctx->C = 0x98badcfe;
 	ctx->D = 0x10325476;
-
 	ctx->total = 0;
 	ctx->buflen = 0;
 }
@@ -40,10 +42,12 @@ void FAST_FUNC md5_begin(md5_ctx_t *ctx)
  * (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))
+#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))
+
+#define rotl32(w, s) (((w) << (s)) | ((w) >> (32 - (s))))
 
 /* Hash a single block, 64 bytes long and 4-byte aligned. */
 static void md5_hash_block(const void *buffer, md5_ctx_t *ctx)
@@ -51,7 +55,7 @@ static void md5_hash_block(const void *buffer, md5_ctx_t *ctx)
 	uint32_t correct_words[16];
 	const uint32_t *words = buffer;
 
-# if MD5_SIZE_VS_SPEED > 0
+#if MD5_SIZE_VS_SPEED > 0
 	static const uint32_t C_array[] = {
 		/* round 1 */
 		0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee,
@@ -74,26 +78,23 @@ static void md5_hash_block(const void *buffer, md5_ctx_t *ctx)
 		0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
 		0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391
 	};
-
 	static const char P_array[] ALIGN1 = {
-#  if MD5_SIZE_VS_SPEED > 1
+# if MD5_SIZE_VS_SPEED > 1
 		0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,	/* 1 */
-#  endif	/* MD5_SIZE_VS_SPEED > 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 MD5_SIZE_VS_SPEED > 1
+# if MD5_SIZE_VS_SPEED > 1
 	static const char S_array[] ALIGN1 = {
 		7, 12, 17, 22,
 		5, 9, 14, 20,
 		4, 11, 16, 23,
 		6, 10, 15, 21
 	};
-#  endif	/* MD5_SIZE_VS_SPEED > 1 */
-# endif
-
+# endif	/* MD5_SIZE_VS_SPEED > 1 */
+#endif
 	uint32_t A = ctx->A;
 	uint32_t B = ctx->B;
 	uint32_t C = ctx->C;
@@ -101,263 +102,252 @@ static void md5_hash_block(const void *buffer, md5_ctx_t *ctx)
 
 	/* Process all bytes in the buffer with 64 bytes in each round of
 	   the loop.  */
-		uint32_t *cwp = correct_words;
-		uint32_t A_save = A;
-		uint32_t B_save = B;
-		uint32_t C_save = C;
-		uint32_t D_save = D;
-
-# if MD5_SIZE_VS_SPEED > 1
-#  define CYCLIC(w, s) (w = (w << s) | (w >> (32 - s)))
-
-		const uint32_t *pc;
-		const char *pp;
-		const char *ps;
-		int i;
-		uint32_t temp;
-
-		for (i = 0; i < 16; i++) {
-			cwp[i] = SWAP_LE32(words[i]);
-		}
-		words += 16;
-
-#  if MD5_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;
+	uint32_t *cwp = correct_words;
+	uint32_t A_save = A;
+	uint32_t B_save = B;
+	uint32_t C_save = C;
+	uint32_t D_save = D;
+
+#if MD5_SIZE_VS_SPEED > 1
+	const uint32_t *pc;
+	const char *pp;
+	const char *ps;
+	int i;
+	uint32_t temp;
+
+	for (i = 0; i < 16; i++)
+		cwp[i] = SWAP_LE32(words[i]);
+	words += 16;
+
+# if MD5_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);
 		}
-
-#  endif	/* MD5_SIZE_VS_SPEED > 2 */
+		temp += cwp[(int) (*pp++)] + *pc++;
+		temp = rotl32(temp, ps[i & 3]);
+		temp += B;
+		A = D;
+		D = C;
+		C = B;
+		B = temp;
+	}
 # 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) \
+	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++;
+		temp = rotl32(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++;
+		temp = rotl32(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++;
+		temp = rotl32(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++;
+		temp = rotl32(temp, ps[i & 3]);
+		temp += B;
+		A = D;
+		D = C;
+		C = B;
+		B = temp;
+	}
+
+# endif /* MD5_SIZE_VS_SPEED > 2 */
+#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_LE32(*words)) + T; \
+		a += FF(b, c, d) + (*cwp++ = SWAP_LE32(*words)) + T; \
 		++words; \
-		CYCLIC (a, s); \
+		a = rotl32(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 MD5_SIZE_VS_SPEED == 1
-		const uint32_t *pc;
-		const char *pp;
-		int i;
-#  endif	/* MD5_SIZE_VS_SPEED */
-
-		/* Round 1.  */
-#  if MD5_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	/* MD5_SIZE_VS_SPEED == 1 */
-
-		/* 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) \
+	/* 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 MD5_SIZE_VS_SPEED == 1
+	const uint32_t *pc;
+	const char *pp;
+	int i;
+# endif	/* MD5_SIZE_VS_SPEED */
+
+	/* Round 1.  */
+# if MD5_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/* MD5_SIZE_VS_SPEED == 1 */
+
+	/* 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 += f(b, c, d) + correct_words[k] + T; \
+		a = rotl32(a, s); \
 		a += b; \
 	} while (0)
 
-		/* Round 2.  */
-#  if MD5_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	/* MD5_SIZE_VS_SPEED == 1 */
-
-		/* Round 3.  */
-#  if MD5_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	/* MD5_SIZE_VS_SPEED == 1 */
-
-		/* Round 4.  */
-#  if MD5_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	/* MD5_SIZE_VS_SPEED == 1 */
-# endif	/* MD5_SIZE_VS_SPEED > 1 */
-
-		/* Add the starting values of the context.  */
-		A += A_save;
-		B += B_save;
-		C += C_save;
-		D += D_save;
+	/* Round 2.  */
+# if MD5_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/* MD5_SIZE_VS_SPEED == 1 */
+
+	/* Round 3.  */
+# if MD5_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/* MD5_SIZE_VS_SPEED == 1 */
+
+	/* Round 4.  */
+# if MD5_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	/* MD5_SIZE_VS_SPEED == 1 */
+#endif	/* MD5_SIZE_VS_SPEED > 1 */
+
+	/* 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;
@@ -370,31 +360,26 @@ static void md5_hash_block(const void *buffer, md5_ctx_t *ctx)
  * with chunks of data that are 4-byte aligned and a multiple of 64 bytes.
  * This function's internal buffer remembers previous data until it has 64
  * bytes worth to pass on.  Call md5_end() to flush this buffer. */
-
 void FAST_FUNC md5_hash(const void *buffer, size_t len, md5_ctx_t *ctx)
 {
-	char *buf=(char *)buffer;
+	char *buf = (char *)buffer;
 
 	/* RFC 1321 specifies the possible length of the file up to 2^64 bits,
 	 * Here we only track the number of bytes.  */
-
 	ctx->total += len;
 
-	// Process all input.
-
+	/* Process all input. */
 	while (len) {
 		unsigned i = 64 - ctx->buflen;
 
-		// Copy data into aligned buffer.
-
+		/* Copy data into aligned buffer. */
 		if (i > len) i = len;
 		memcpy(ctx->buffer + ctx->buflen, buf, i);
 		len -= i;
 		ctx->buflen += i;
 		buf += i;
 
-		// When buffer fills up, process it.
-
+		/* When buffer fills up, process it. */
 		if (ctx->buflen == 64) {
 			md5_hash_block(ctx->buffer, ctx);
 			ctx->buflen = 0;
@@ -410,23 +395,25 @@ void FAST_FUNC md5_hash(const void *buffer, size_t len, md5_ctx_t *ctx)
  * IMPORTANT: On some systems it is required that RESBUF is correctly
  * aligned for a 32 bits value.
  */
-void* FAST_FUNC md5_end(void *resbuf, md5_ctx_t *ctx)
+void FAST_FUNC md5_end(void *resbuf, md5_ctx_t *ctx)
 {
 	char *buf = ctx->buffer;
 	int i;
 
 	/* Pad data to block size.  */
-
 	buf[ctx->buflen++] = 0x80;
 	memset(buf + ctx->buflen, 0, 128 - ctx->buflen);
 
 	/* Put the 64-bit file length in *bits* at the end of the buffer.  */
 	ctx->total <<= 3;
-	if (ctx->buflen > 56) buf += 64;
-	for (i = 0; i < 8; i++)  buf[56 + i] = ctx->total >> (i*8);
+	if (ctx->buflen > 56)
+		buf += 64;
+	for (i = 0; i < 8; i++)
+		buf[56 + i] = ctx->total >> (i*8);
 
 	/* Process last bytes.  */
-	if (buf != ctx->buffer) md5_hash_block(ctx->buffer, ctx);
+	if (buf != ctx->buffer)
+		md5_hash_block(ctx->buffer, ctx);
 	md5_hash_block(buf, ctx);
 
 	/* Put result from CTX in first 16 bytes following RESBUF.  The result is
@@ -440,7 +427,4 @@ void* FAST_FUNC md5_end(void *resbuf, md5_ctx_t *ctx)
 	((uint32_t *) resbuf)[1] = SWAP_LE32(ctx->B);
 	((uint32_t *) resbuf)[2] = SWAP_LE32(ctx->C);
 	((uint32_t *) resbuf)[3] = SWAP_LE32(ctx->D);
-
-	return resbuf;
 }
-