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#ifndef __BSTEA_H
#define __BSTEA_H
#include <stdint.h>
#include <limits.h>
#include "bstea_wordsize.h"
#define TERNARY(x, v1, v0) ((x) ? (v1) : (v0))
#define TEA_ROUNDS 32
#define TEA_BLOCK_SIZE 64
#define TEA_KEY_SIZE 128
#if __BSTEA_WORDSIZE == 64
typedef uint64_t vector_width_t; /* 64-way bit-level vectorization */
#define VECTOR_AT_ONE 0xffffffffffffffff
#define VECTOR_AT_ZERO 0x0000000000000000
#elif __BSTEA_WORDSIZE == 32
typedef uint32_t vector_width_t; /* 32-way bit-level vectorization */
#define VECTOR_AT_ONE 0xffffffff
#define VECTOR_AT_ZERO 0x00000000
#elif __BSTEA_WORDSIZE == 16
typedef uint32_t vector_width_t; /* 16-way bit-level vectorization */
#define VECTOR_AT_ONE 0xffff
#define VECTOR_AT_ZERO 0x0000
#elif __BSTEA_WORDSIZE == 8
typedef uint32_t vector_width_t; /* 8-way bit-level vectorization */
#define VECTOR_AT_ONE 0xff
#define VECTOR_AT_ZERO 0x00
#else
typedef unsigned long int vector_width_t; /* word-way bit-level vectorization */
#define VECTOR_AT_ONE ULONG_MAX
#define VECTOR_AT_ZERO 0
#endif
typedef vector_width_t parallel_blocks_t[TEA_BLOCK_SIZE];
typedef vector_width_t parallel_keys_t[TEA_KEY_SIZE];
/* __P is a macro used to wrap function prototypes, so that compilers
that don't understand ANSI C prototypes still work, and ANSI C
compilers can issue warnings about type mismatches. */
#undef __P
#if defined (__STDC__) || defined (_AIX) || (defined (__mips) && defined (_SYSTYPE_SVR4)) || defined(WIN32) || defined(__cplusplus)
# define __P(protos) protos
#else
# define __P(protos) ()
#endif
/* __BEGIN_DECLS should be used at the beginning of your declarations,
so that C++ compilers don't mangle their names. Use __END_DECLS at
the end of C declarations. */
#undef __BEGIN_DECLS
#undef __END_DECLS
#ifdef __cplusplus
# define __BEGIN_DECLS extern "C" {
# define __END_DECLS }
#else
# define __BEGIN_DECLS /* empty */
# define __END_DECLS /* empty */
#endif
/* The following definitions for FAR are needed only for MSDOS mixed
* model programming (small or medium model with some far allocations).
* This was tested only with MSC. If you don't need the mixed model,
* just define FAR to be empty.
*/
#ifdef SYS16BIT
# if defined(M_I86SM) || defined(M_I86MM)
/* MSC small or medium model */
# define SMALL_MEDIUM
# ifdef _MSC_VER
# define FAR _far
# else
# define FAR far
# endif
# endif
# if (defined(__SMALL__) || defined(__MEDIUM__))
/* Turbo C small or medium model */
# define SMALL_MEDIUM
# ifdef __BORLANDC__
# define FAR _far
# else
# define FAR far
# endif
# endif
#endif
#if defined(WINDOWS) || defined(WIN32)
# ifdef BSTEA_DLL
# if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500))
# ifdef BSTEA_INTERNAL
# define BSTEA_EXTERN extern __declspec(dllexport)
# else
# define BSTEA_EXTERN extern __declspec(dllimport)
# endif
# endif
# endif /* BSTEA_DLL */
/* If building or using bstea with the WINAPI/WINAPIV calling convention,
* define BSTEA_WINAPI.
* Caution: the standard BSTEA.DLL is NOT compiled using BSTEA_WINAPI.
*/
# ifdef BSTEA_WINAPI
# ifdef FAR
# undef FAR
# endif
# include <windows.h>
/* No need for _export, use BSTEA_LIB.DEF instead. */
/* For complete Windows compatibility, use WINAPI, not __stdcall. */
# define BSTEA_EXPORT WINAPI
# ifdef WIN32
# define BSTEA_EXPORTVA WINAPIV
# else
# define BSTEA_EXPORTVA FAR CDECL
# endif
# endif
#else
# include <stdbool.h>
#endif
#ifndef BSTEA_EXTERN
# define BSTEA_EXTERN extern
#endif
#ifndef BSTEA_EXPORT
# define BSTEA_EXPORT
#endif
#ifndef BSTEA_EXPORTVA
# define BSTEA_EXPORTVA
#endif
#ifndef FAR
# define FAR
#endif
__BEGIN_DECLS
BSTEA_EXTERN void encrypt __P((parallel_blocks_t, const parallel_keys_t, unsigned int));
BSTEA_EXTERN void decrypt __P((parallel_blocks_t, const parallel_keys_t, unsigned int));
__END_DECLS
#endif /* __BSTEA_H */
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