/* See LICENSE file for copyright and license details. */
#include "libkeccak.h"
#ifndef ALLOCA_LIMIT
# define ALLOCA_LIMIT (16UL << 10)
#endif
#include <sys/stat.h>
#if ALLOCA_LIMIT > 0
# if defined(__GLIBC__) || defined(__sun) || defined(__CYGWIN__) || defined(__APPLE__)
# include <alloca.h>
# elif defined(_WIN32)
# include <malloc.h>
# if !defined(alloca)
# define alloca _alloca /* For clang with MS Codegen */
# endif
# endif
#endif
#include <errno.h>
#include <unistd.h>
/* Use built in functions and branching optimisation if available */
#ifndef __GNUC__
# define __builtin_expect(expression, expect) expression
# define __builtin_memset(dest, c, n) memset(dest, c, n)
# define __builtin_memcpy(dest, src, n) memcpy(dest, src, n)
# define __builtin_memmove(dest, src, n) memmove(dest, src, n)
# define __builtin_strlen(s) strlen(s)
#endif
/**
* Literal comma that can be passed as a macro argument
*/
#define COMMA ,
/**
* X-macro-enabled listing of all intergers in [0, 4]
*
* @param X(int) The macro to expand 5 times
* @param D Code to insert between each expansion of `X`
*/
#define LIST_5(X, D)\
X(0) D X(1) D X(2) D X(3) D X(4)
/**
* X-macro-enabled listing of all intergers in [0, 7]
*
* @param X(int) The macro to expand 8 times
* @param D Code to insert between each expansion of `X`
*/
#define LIST_8(X, D)\
X(0) D X(1) D X(2) D X(3) D X(4) D\
X(5) D X(6) D X(7)
/**
* X-macro-enabled listing of all intergers in [0, 24]
*
* @param X(int) The macro to expand 25 times
* @param D Code to insert between each expansion of `X`
*/
#define LIST_25(X, D)\
X( 0) D X( 1) D X( 2) D X( 3) D X( 4) D\
X( 5) D X( 6) D X( 7) D X( 8) D X( 9) D\
X(10) D X(11) D X(12) D X(13) D X(14) D\
X(15) D X(16) D X(17) D X(18) D X(19) D\
X(20) D X(21) D X(22) D X(23) D X(24)
/**
* The outer pad pattern for HMAC
*/
#define HMAC_OUTER_PAD 0x5C
/**
* The inner pad pattern for HMAC
*/
#define HMAC_INNER_PAD 0x36
#ifdef NEED_EXPLICIT_BZERO
static void *(*volatile my_explicit_memset)(void *, int, size_t) = memset;
# if defined(__clang__)
# pragma clang diagnostic push
# pragma clang diagnostic ignored "-Wunknown-attributes"
# endif
__attribute__((__optimize__("-O0")))
static void
my_explicit_bzero(void *ptr, size_t size)
{
(*my_explicit_memset)(ptr, 0, size);
}
# if defined(__clang__)
# pragma clang diagnostic pop
# endif
#endif
