mirror of
https://github.com/libretro/RetroArch.git
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94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2014 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* sha1.h
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*
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* Copyright (C) 1998, 2009
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* Paul E. Jones <paulej@packetizer.com>
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* All Rights Reserved
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*
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*****************************************************************************
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* $Id: sha1.h 12 2009-06-22 19:34:25Z paulej $
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*****************************************************************************
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*
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* Description:
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* This class implements the Secure Hashing Standard as defined
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* in FIPS PUB 180-1 published April 17, 1995.
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*
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* Many of the variable names in the SHA1Context, especially the
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* single character names, were used because those were the names
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* used in the publication.
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*
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* Please read the file sha1.c for more information.
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*
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*/
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#ifndef __RARCH_HASH_H
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#define __RARCH_HASH_H
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#include <stdint.h>
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#include <stddef.h>
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#include "msvc/msvc_compat.h"
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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/* Hashes sha256 and outputs a human readable string
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* for comparing with the cheat XML values. */
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void sha256_hash(char *out, const uint8_t *in, size_t size);
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#ifdef HAVE_ZLIB
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#include <zlib.h>
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static inline uint32_t crc32_calculate(const uint8_t *data, size_t length)
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{
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return crc32(0, data, length);
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}
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static inline uint32_t crc32_adjust(uint32_t crc, uint8_t data)
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{
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/* zlib and nall have different
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* assumptions on "sign" for this function. */
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return ~crc32(~crc, &data, 1);
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}
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#else
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uint32_t crc32_calculate(const uint8_t *data, size_t length);
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uint32_t crc32_adjust(uint32_t crc, uint8_t data);
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#endif
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typedef struct SHA1Context
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{
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unsigned Message_Digest[5]; /* Message Digest (output) */
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unsigned Length_Low; /* Message length in bits */
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unsigned Length_High; /* Message length in bits */
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unsigned char Message_Block[64]; /* 512-bit message blocks */
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int Message_Block_Index; /* Index into message block array */
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int Computed; /* Is the digest computed? */
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int Corrupted; /* Is the message digest corruped? */
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} SHA1Context;
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void SHA1Reset(SHA1Context *);
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int SHA1Result(SHA1Context *);
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void SHA1Input( SHA1Context *, const unsigned char *, unsigned);
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#endif
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