File content as of revision 2:e6a185df9e4c:

/*
 * This is an OpenSSL-compatible implementation of the RSA Data Security, Inc.
 * MD5 Message-Digest Algorithm (RFC 1321).
 *
 * Homepage:
 * http://openwall.info/wiki/people/solar/software/public-domain-source-code/md5
 *
 * Author:
 * Alexander Peslyak, better known as Solar Designer <solar at openwall.com>
 *
 * This software was written by Alexander Peslyak in 2001.  No copyright is
 * claimed, and the software is hereby placed in the public domain.
 * In case this attempt to disclaim copyright and place the software in the
 * public domain is deemed null and void, then the software is
 * Copyright (c) 2001 Alexander Peslyak and it is hereby released to the
 * general public under the following terms:
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted.
 *
 * There's ABSOLUTELY NO WARRANTY, express or implied.
 *
 * See md5.c for more information.
 */

//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef  __cplusplus
extern "C" {
#endif

#ifdef HAVE_OPENSSL
#include <openssl/md5.h>
#elif !defined(_MD5_H)
#define _MD5_H

/* Any 32-bit or wider unsigned integer data type will do */
typedef unsigned long MD5_u32plus;

//#ifdef __CCS__
//typedef struct __attribute__ ((__packed__))
//#elif __IAR_SYSTEMS_ICC__
//#pragma pack(1)
typedef struct
//#endif
{
	MD5_u32plus lo, hi;
	MD5_u32plus a, b, c, d;
	unsigned char buffer[64];
	MD5_u32plus block[16];
} MD5_CTX;

extern void MD5_Init(MD5_CTX *ctx);
extern void MD5_Update(MD5_CTX *ctx, void *data, unsigned long size);
extern void MD5_Final(unsigned char *result, MD5_CTX *ctx);

//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef  __cplusplus
}
#endif // __cplusplus

#endif