/*

 * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.

 *

 * Licensed under the OpenSSL license (the "License").  You may not use

 * this file except in compliance with the License.  You can obtain a copy

 * in the file LICENSE in the source distribution or at

 * https://www.openssl.org/source/license.html

 */

#ifdef OPENSSL_SYS_WIN32

# include <stdlib.h>

#endif

#undef c2l

#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 */

#undef c2ln

#define c2ln(c,l1,l2,n) { \

                        c+=n; \

                        l1=l2=0; \

                        switch (n) { \

                        case 8: l2 =((unsigned long)(*(--(c))))<<24L; \

                        case 7: l2|=((unsigned long)(*(--(c))))<<16L; \

                        case 6: l2|=((unsigned long)(*(--(c))))<< 8L; \

                        case 5: l2|=((unsigned long)(*(--(c))));     \

                        case 4: l1 =((unsigned long)(*(--(c))))<<24L; \

                        case 3: l1|=((unsigned long)(*(--(c))))<<16L; \

                        case 2: l1|=((unsigned long)(*(--(c))))<< 8L; \

                        case 1: l1|=((unsigned long)(*(--(c))));     \

                                } \

                        }

#undef l2c

#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 */

#undef l2cn

#define l2cn(l1,l2,c,n) { \

                        c+=n; \

                        switch (n) { \

                        case 8: *(--(c))=(unsigned char)(((l2)>>24L)&0xff); \

                        case 7: *(--(c))=(unsigned char)(((l2)>>16L)&0xff); \

                        case 6: *(--(c))=(unsigned char)(((l2)>> 8L)&0xff); \

                        case 5: *(--(c))=(unsigned char)(((l2)     )&0xff); \

                        case 4: *(--(c))=(unsigned char)(((l1)>>24L)&0xff); \

                        case 3: *(--(c))=(unsigned char)(((l1)>>16L)&0xff); \

                        case 2: *(--(c))=(unsigned char)(((l1)>> 8L)&0xff); \

                        case 1: *(--(c))=(unsigned char)(((l1)     )&0xff); \

                                } \

                        }

/* NOTE - c is not incremented as per n2l */

#define n2ln(c,l1,l2,n) { \

                        c+=n; \

                        l1=l2=0; \

                        switch (n) { \

                        case 8: l2 =((unsigned long)(*(--(c))))    ; \

                        /* fall thru */                              \

                        case 7: l2|=((unsigned long)(*(--(c))))<< 8; \

                        /* fall thru */                              \

                        case 6: l2|=((unsigned long)(*(--(c))))<<16; \

                        /* fall thru */                              \

                        case 5: l2|=((unsigned long)(*(--(c))))<<24; \

                        /* fall thru */                              \

                        case 4: l1 =((unsigned long)(*(--(c))))    ; \

                        /* fall thru */                              \

                        case 3: l1|=((unsigned long)(*(--(c))))<< 8; \

                        /* fall thru */                              \

                        case 2: l1|=((unsigned long)(*(--(c))))<<16; \

                        /* fall thru */                              \

                        case 1: l1|=((unsigned long)(*(--(c))))<<24; \

                                } \

                        }

/* NOTE - c is not incremented as per l2n */

#define l2nn(l1,l2,c,n) { \

                        c+=n; \

                        switch (n) { \

                        case 8: *(--(c))=(unsigned char)(((l2)    )&0xff); \

                        /* fall thru */                                    \

                        case 7: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \

                        /* fall thru */                                    \

                        case 6: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \

                        /* fall thru */                                    \

                        case 5: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \

                        /* fall thru */                                    \

                        case 4: *(--(c))=(unsigned char)(((l1)    )&0xff); \

                        /* fall thru */                                    \

                        case 3: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \

                        /* fall thru */                                    \

                        case 2: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \

                        /* fall thru */                                    \

                        case 1: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \

                                } \

                        }

#undef n2l

#define n2l(c,l)        (l =((unsigned long)(*((c)++)))<<24L, \

                         l|=((unsigned long)(*((c)++)))<<16L, \

                         l|=((unsigned long)(*((c)++)))<< 8L, \

                         l|=((unsigned long)(*((c)++))))

#undef l2n

#define l2n(l,c)        (*((c)++)=(unsigned char)(((l)>>24L)&0xff), \

                         *((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)

# define ROTL(a,n)     (_lrotl(a,n))

#else

# define ROTL(a,n)     ((((a)<<(n))&0xffffffffL)|((a)>>((32-(n))&31)))

#endif

#define C_M    0x3fc

#define C_0    22L

#define C_1    14L

#define C_2     6L

#define C_3     2L              /* left shift */

/* The rotate has an extra 16 added to it to help the x86 asm */

#if defined(CAST_PTR)

# define E_CAST(n,key,L,R,OP1,OP2,OP3) \

        { \

        int i; \

        t=(key[n*2] OP1 R)&0xffffffffL; \

        i=key[n*2+1]; \

        t=ROTL(t,i); \

        L^= (((((*(CAST_LONG *)((unsigned char *) \

                        CAST_S_table0+((t>>C_2)&C_M)) OP2 \

                *(CAST_LONG *)((unsigned char *) \

                        CAST_S_table1+((t<

                *(CAST_LONG *)((unsigned char *) \

                        CAST_S_table2+((t>>C_0)&C_M)))&0xffffffffL) OP1 \

                *(CAST_LONG *)((unsigned char *) \

                        CAST_S_table3+((t>>C_1)&C_M)))&0xffffffffL; \

        }

#elif defined(CAST_PTR2)

# define E_CAST(n,key,L,R,OP1,OP2,OP3) \

        { \

        int i; \

        CAST_LONG u,v,w; \

        w=(key[n*2] OP1 R)&0xffffffffL; \

        i=key[n*2+1]; \

        w=ROTL(w,i); \

        u=w>>C_2; \

        v=w<

        u&=C_M; \

        v&=C_M; \

        t= *(CAST_LONG *)((unsigned char *)CAST_S_table0+u); \

        u=w>>C_0; \

        t=(t OP2 *(CAST_LONG *)((unsigned char *)CAST_S_table1+v))&0xffffffffL;\

        v=w>>C_1; \

        u&=C_M; \

        v&=C_M; \

        t=(t OP3 *(CAST_LONG *)((unsigned char *)CAST_S_table2+u)&0xffffffffL);\

        t=(t OP1 *(CAST_LONG *)((unsigned char *)CAST_S_table3+v)&0xffffffffL);\

        L^=(t&0xffffffff); \

        }

#else

# define E_CAST(n,key,L,R,OP1,OP2,OP3) \

        { \

        CAST_LONG a,b,c,d; \

        t=(key[n*2] OP1 R)&0xffffffff; \

        t=ROTL(t,(key[n*2+1])); \

        a=CAST_S_table0[(t>> 8)&0xff]; \

        b=CAST_S_table1[(t    )&0xff]; \

        c=CAST_S_table2[(t>>24)&0xff]; \

        d=CAST_S_table3[(t>>16)&0xff]; \

        L^=(((((a OP2 b)&0xffffffffL) OP3 c)&0xffffffffL) OP1 d)&0xffffffffL; \

        }

#endif

extern const CAST_LONG CAST_S_table0[256];

extern const CAST_LONG CAST_S_table1[256];

extern const CAST_LONG CAST_S_table2[256];

extern const CAST_LONG CAST_S_table3[256];

extern const CAST_LONG CAST_S_table4[256];

extern const CAST_LONG CAST_S_table5[256];

extern const CAST_LONG CAST_S_table6[256];

extern const CAST_LONG CAST_S_table7[256];