cast_lcl.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/* crypto/cast/cast_lcl.h */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* 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 copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS 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 AUTHOR OR 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.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include "e_os.h"
#ifdef OPENSSL_SYS_WIN32
#include <stdlib.h>
#endif
#ifdef OPENSSL_BUILD_SHLIBCRYPTO
# define OPENSSL_EXTERN OPENSSL_EXPORT
#endif
#define c2l(c,l) (l =((unsigned long)(*((c)++))) , \
l|=((unsigned long)(*((c)++)))<< 8L, \
l|=((unsigned long)(*((c)++)))<<16L, \
l|=((unsigned long)(*((c)++)))<<24L)
/* NOTE - c is not incremented as per c2l */
c+=n; \
switch (n) { \
case 5: l2|=((unsigned long)(*(--(c)))); \
case 1: l1|=((unsigned long)(*(--(c)))); \
} \
}
#define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
*((c)++)=(unsigned char)(((l)>> 8L)&0xff), \
*((c)++)=(unsigned char)(((l)>>16L)&0xff), \
*((c)++)=(unsigned char)(((l)>>24L)&0xff))
/* NOTE - c is not incremented as per l2c */
c+=n; \
switch (n) { \
} \
}
/* NOTE - c is not incremented as per n2l */
c+=n; \
switch (n) { \
case 8: l2 =((unsigned long)(*(--(c)))) ; \
case 4: l1 =((unsigned long)(*(--(c)))) ; \
} \
}
/* NOTE - c is not incremented as per l2n */
c+=n; \
switch (n) { \
} \
}
#define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24L, \
l|=((unsigned long)(*((c)++)))<<16L, \
l|=((unsigned long)(*((c)++)))<< 8L, \
l|=((unsigned long)(*((c)++))))
*((c)++)=(unsigned char)(((l)>>16L)&0xff), \
*((c)++)=(unsigned char)(((l)>> 8L)&0xff), \
*((c)++)=(unsigned char)(((l) )&0xff))
#if defined(OPENSSL_SYS_WIN32) && defined(_MSC_VER)
#else
#endif
#define C_M 0x3fc
#define C_0 22L
#define C_1 14L
#define C_2 6L
/* The rotate has an extra 16 added to it to help the x86 asm */
#if defined(CAST_PTR)
{ \
int i; \
t=ROTL(t,i); \
L^= (((((*(CAST_LONG *)((unsigned char *) \
*(CAST_LONG *)((unsigned char *) \
*(CAST_LONG *)((unsigned char *) \
*(CAST_LONG *)((unsigned char *) \
}
{ \
int i; \
CAST_LONG u,v,w; \
w=ROTL(w,i); \
u=w>>C_2; \
v=w<<C_3; \
u&=C_M; \
v&=C_M; \
t= *(CAST_LONG *)((unsigned char *)CAST_S_table0+u); \
u=w>>C_0; \
v=w>>C_1; \
u&=C_M; \
v&=C_M; \
L^=(t&0xffffffff); \
}
#else
{ \
CAST_LONG a,b,c,d; \
b=CAST_S_table1[(t )&0xff]; \
}
#endif