* [including the GNU Public Licence.]
*/
-/* On sparc, this actually slows things down :-( */
-#if defined(sun)
-#undef B_ENDIAN
-#endif
-
#include <stdlib.h>
#include <string.h>
-#include "md5.h"
-
-#define ULONG unsigned long
-#define UCHAR unsigned char
-#define UINT unsigned int
+#include <openssl/opensslconf.h>
+#include <openssl/md5.h>
-#if defined(NOCONST)
-#define const
+#ifndef MD5_LONG_LOG2
+#define MD5_LONG_LOG2 2 /* default to 32 bits */
#endif
-#undef c2l
-#define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \
- l|=(((unsigned long)(*((c)++)))<< 8), \
- l|=(((unsigned long)(*((c)++)))<<16), \
- l|=(((unsigned long)(*((c)++)))<<24))
-
-#undef p_c2l
-#define 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; \
- } \
- }
-
-/* NOTE the pointer is not incremented at the end of this */
-#undef c2l_p
-#define 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)))) ; \
- } \
- }
+#ifdef MD5_ASM
+# if defined(__i386) || defined(WIN32)
+# define md5_block_host_order md5_block_asm_host_order
+# elif defined(__sparc) && defined(ULTRASPARC)
+ void md5_block_asm_data_order_aligned (MD5_CTX *c, const MD5_LONG *p,int num);
+# define HASH_BLOCK_DATA_ORDER_ALIGNED md5_block_asm_data_order_aligned
+# endif
+#endif
-#undef p_c2l_p
-#define 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; \
- } \
- }
+void md5_block_host_order (MD5_CTX *c, const void *p,int num);
+void md5_block_data_order (MD5_CTX *c, const void *p,int num);
-#undef l2c
-#define 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))
+#if defined(__i386)
+/*
+ * *_block_host_order is expected to handle aligned data while
+ * *_block_data_order - unaligned. As algorithm and host (x86)
+ * are in this case of the same "endianess" these two are
+ * otherwise indistinguishable. But normally you don't want to
+ * call the same function because unaligned access in places
+ * where alignment is expected is usually a "Bad Thing". Indeed,
+ * on RISCs you get punished with BUS ERROR signal or *severe*
+ * performance degradation. Intel CPUs are in turn perfectly
+ * capable of loading unaligned data without such drastic side
+ * effect. Yes, they say it's slower than aligned load, but no
+ * exception is generated and therefore performance degradation
+ * is *incomparable* with RISCs. What we should weight here is
+ * costs of unaligned access against costs of aligning data.
+ * According to my measurements allowing unaligned access results
+ * in ~9% performance improvement on Pentium II operating at
+ * 266MHz. I won't be surprised if the difference will be higher
+ * on faster systems:-)
+ *
+ * <appro@fy.chalmers.se>
+ */
+#define md5_block_data_order md5_block_host_order
+#endif
-/* NOTE - c is not incremented as per l2c */
-#undef l2cn
-#define l2cn(l1,l2,c,n) { \
- c+=n; \
- switch (n) { \
- case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
- case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
- case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
- case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \
- case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
- case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
- case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
- case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \
- } \
- }
+#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
+#if !defined(L_ENDIAN) || defined(md5_block_data_order)
+#define HASH_BLOCK_DATA_ORDER md5_block_data_order
+/*
+ * Little-endians (Intel and Alpha) feel better without this.
+ * It looks like memcpy does better job than generic
+ * md5_block_data_order on copying-n-aligning input data.
+ * But franlky speaking I didn't expect such result on Alpha.
+ * On the other hand I've got this with egcs-1.0.2 and if
+ * program is compiled with another (better?) compiler it
+ * might turn out other way around.
+ *
+ * <appro@fy.chalmers.se>
+ */
+#endif
-/* A nice byte order reversal from Wei Dai <weidai@eskimo.com> */
-#if defined(WIN32)
-/* 5 instructions with rotate instruction, else 9 */
-#define Endian_Reverse32(a) \
- { \
- unsigned long l=(a); \
- (a)=((ROTATE(l,8)&0x00FF00FF)|(ROTATE(l,24)&0xFF00FF00)); \
- }
+#ifndef FLAT_INC
+#include "../md32_common.h"
#else
-/* 6 instructions with rotate instruction, else 8 */
-#define Endian_Reverse32(a) \
- { \
- unsigned long l=(a); \
- l=(((l&0xFF00FF00)>>8L)|((l&0x00FF00FF)<<8L)); \
- (a)=ROTATE(l,16L); \
- }
+#include "md32_common.h"
#endif
+
/*
#define F(x,y,z) (((x) & (y)) | ((~(x)) & (z)))
#define G(x,y,z) (((x) & (z)) | ((y) & (~(z))))
#define H(b,c,d) ((b) ^ (c) ^ (d))
#define I(b,c,d) (((~(d)) | (b)) ^ (c))
-#undef ROTATE
-#if defined(WIN32)
-#define ROTATE(a,n) _lrotl(a,n)
-#else
-#define ROTATE(a,n) (((a)<<(n))|(((a)&0xffffffff)>>(32-(n))))
-#endif
-
-
#define R0(a,b,c,d,k,s,t) { \
a+=((k)+(t)+F((b),(c),(d))); \
a=ROTATE(a,s); \
projects / openssl.git / blobdiff