libsql-ffi 0.2.1

Native bindings to libSQL
Documentation 
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/*
 * FIPS 180-2 SHA-224/256/384/512 implementation
 * Last update: 02/02/2007
 * Issue date:  04/30/2005
 *
 * Copyright (C) 2005, 2007 Olivier Gay <olivier.gay@a3.epfl.ch>
 * All rights reserved.
 *
 * 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 above 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
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the project nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``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 PROJECT 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.
 */

#ifndef SHA2_H
#define SHA2_H

#define SHA224_DIGEST_SIZE ( 224 / 8)
#define SHA256_DIGEST_SIZE ( 256 / 8)
#define SHA384_DIGEST_SIZE ( 384 / 8)
#define SHA512_DIGEST_SIZE ( 512 / 8)

#define SHA256_BLOCK_SIZE  ( 512 / 8)
#define SHA512_BLOCK_SIZE  (1024 / 8)
#define SHA384_BLOCK_SIZE  SHA512_BLOCK_SIZE
#define SHA224_BLOCK_SIZE  SHA256_BLOCK_SIZE

#ifndef SHA2_TYPES
#define SHA2_TYPES
typedef unsigned char uint8;
typedef unsigned int  uint32;

typedef sqlite3_uint64 uint64;

#if defined(_MSC_VER) || defined(__BORLANDC__)
  #define li_64(h) 0x##h##ui64
#else
  #define li_64(h) 0x##h##ull
#endif 

#if 0  /* Start of original int64 defines */

#if defined(_MSC_VER)
  #if _MSC_VER >= 1310
    typedef unsigned long long uint64;
    #define li_64(h) 0x##h##ull
  #else
    typedef unsigned __int64 uint64;
    #define li_64(h) 0x##h##ui64
  #endif
#elif defined(__BORLANDC__) && !defined(__MSDOS__)
  #define li_64(h) 0x##h##ull
  typedef __int64 uint64;
#elif defined(__sun)
  #if defined(ULONG_MAX) && ULONG_MAX == 0xfffffffful
    #define li_64(h) 0x##h##ull
    typedef unsigned long long uint64;
  #elif defined(ULONG_LONG_MAX) && ULONG_LONG_MAX == 0xfffffffffffffffful
    #define li_64(h) 0x##h##ul
    typedef unsigned long uint64;
  #endif
#elif defined(__MVS__)
  #define li_64(h)    0x##h##ull
  typedef unsigned int long long uint64;
#elif defined(ULLONG_MAX) && ULLONG_MAX > 4294967295
  #if ULLONG_MAX == 18446744073709551615ull
    #define li_64(h) 0x##h##ull
    typedef unsigned long long uint64;
  #endif
#elif defined(ULONG_LONG_MAX) && ULONG_LONG_MAX > 4294967295
  #if ULONG_LONG_MAX == 18446744073709551615
    #define li_64(h) 0x##h##ull
    typedef unsigned long long uint64;
  #endif
#elif defined(ULONG_MAX) && ULONG_MAX > 4294967295
  #if ULONG_MAX == 18446744073709551615
    #define li_64(h) 0x##h##ul
    typedef unsigned long uint64;
  #endif
#elif defined(UINT_MAX) && UINT_MAX > 4294967295
  #if UINT_MAX == 18446744073709551615
    #define li_64(h) 0x##h##u
    typedef unsigned int uint64;
  #endif
#endif
#endif

#endif /* End of original int64 defines */

#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
    unsigned int tot_len;
    unsigned int len;
    unsigned char block[2 * SHA256_BLOCK_SIZE];
    uint32 h[8];
} sha256_ctx;

typedef struct {
    unsigned int tot_len;
    unsigned int len;
    unsigned char block[2 * SHA512_BLOCK_SIZE];
    uint64 h[8];
} sha512_ctx;

typedef sha512_ctx sha384_ctx;
typedef sha256_ctx sha224_ctx;

void sha224_init(sha224_ctx *ctx);
void sha224_update(sha224_ctx *ctx, const unsigned char *message,
                   unsigned int len);
void sha224_final(sha224_ctx *ctx, unsigned char *digest);
void sha224(const unsigned char *message, unsigned int len,
            unsigned char *digest);

void sha256_init(sha256_ctx * ctx);
void sha256_update(sha256_ctx *ctx, const unsigned char *message,
                   unsigned int len);
void sha256_final(sha256_ctx *ctx, unsigned char *digest);
void sha256_transform(sha256_ctx *ctx, const unsigned char *message);
void sha256(const unsigned char *message, unsigned int len,
            unsigned char *digest);

void sha384_init(sha384_ctx *ctx);
void sha384_update(sha384_ctx *ctx, const unsigned char *message,
                   unsigned int len);
void sha384_final(sha384_ctx *ctx, unsigned char *digest);
void sha384(const unsigned char *message, unsigned int len,
            unsigned char *digest);

void sha512_init(sha512_ctx *ctx);
void sha512_update(sha512_ctx *ctx, const unsigned char *message,
                   unsigned int len);
void sha512_final(sha512_ctx *ctx, unsigned char *digest);
void sha512_transform(sha512_ctx *ctx, const unsigned char *message);
void sha512(const unsigned char *message, unsigned int len,
            unsigned char *digest);

#ifdef __cplusplus
}
#endif

#endif /* !SHA2_H */