A local copy of OpenSSL from GitHub
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/*
* Copyright 1995-2016 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
*/
#include <stdlib.h>
#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)))) ; \
case 7: l2|=((unsigned long)(*(--(c))))<< 8; \
case 6: l2|=((unsigned long)(*(--(c))))<<16; \
case 5: l2|=((unsigned long)(*(--(c))))<<24; \
case 4: l1 =((unsigned long)(*(--(c)))) ; \
case 3: l1|=((unsigned long)(*(--(c))))<< 8; \
case 2: l1|=((unsigned long)(*(--(c))))<<16; \
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); \
case 7: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
case 6: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
case 5: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
case 4: *(--(c))=(unsigned char)(((l1) )&0xff); \
case 3: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
case 2: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
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 ROTATE_l32(a,n) _lrotl(a,n)
# define ROTATE_r32(a,n) _lrotr(a,n)
#elif defined(__ICC)
# define ROTATE_l32(a,n) _rotl(a,n)
# define ROTATE_r32(a,n) _rotr(a,n)
#elif defined(__GNUC__) && __GNUC__>=2 && !defined(__STRICT_ANSI__) && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM) && !defined(PEDANTIC)
# if defined(__i386) || defined(__i386__) || defined(__x86_64) || defined(__x86_64__)
# define ROTATE_l32(a,n) ({ register unsigned int ret; \
asm ("roll %%cl,%0" \
: "=r"(ret) \
: "c"(n),"0"((unsigned int)(a)) \
: "cc"); \
ret; \
})
# define ROTATE_r32(a,n) ({ register unsigned int ret; \
asm ("rorl %%cl,%0" \
: "=r"(ret) \
: "c"(n),"0"((unsigned int)(a)) \
: "cc"); \
ret; \
})
# endif
#endif
#ifndef ROTATE_l32
# define ROTATE_l32(a,n) (((a)<<(n&0x1f))|(((a)&0xffffffff)>>((32-n)&0x1f)))
#endif
#ifndef ROTATE_r32
# define ROTATE_r32(a,n) (((a)<<((32-n)&0x1f))|(((a)&0xffffffff)>>(n&0x1f)))
#endif
#define RC5_32_MASK 0xffffffffL
#define RC5_16_P 0xB7E1
#define RC5_16_Q 0x9E37
#define RC5_32_P 0xB7E15163L
#define RC5_32_Q 0x9E3779B9L
#define RC5_64_P 0xB7E151628AED2A6BLL
#define RC5_64_Q 0x9E3779B97F4A7C15LL
#define E_RC5_32(a,b,s,n) \
a^=b; \
a=ROTATE_l32(a,b); \
a+=s[n]; \
a&=RC5_32_MASK; \
b^=a; \
b=ROTATE_l32(b,a); \
b+=s[n+1]; \
b&=RC5_32_MASK;
#define D_RC5_32(a,b,s,n) \
b-=s[n+1]; \
b&=RC5_32_MASK; \
b=ROTATE_r32(b,a); \
b^=a; \
a-=s[n]; \
a&=RC5_32_MASK; \
a=ROTATE_r32(a,b); \
a^=b;