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#ifndef SHA1_H

#define SHA1_H



/*

SHA-1 in C

By Steve Reid <sreid@sea-to-sky.net>

100% Public Domain



-----------------

23 Apr 2001 version from http://sea-to-sky.net/~sreid/

Header file added to integrate with Dtorrent.

See sha1.c for further information.

*/



#ifdef __cplusplus

extern "C" {

#endif



#include <stddef.h>  // size_t

#include "config.h"



void Sha1(const char *data, size_t len, unsigned char *result);



#if defined(USE_STANDALONE_SHA1)



#include <inttypes.h>



typedef struct {

    uint32_t state[5];

    uint32_t count[2];

    unsigned char buffer[64];

} SHA1_CTX;



void SHA1Transform(uint32_t state[5], const unsigned char buffer[64]);

void SHA1Init(SHA1_CTX* context);

void SHA1Update(SHA1_CTX* context, const unsigned char* data, uint32_t len);

void SHA1Final(unsigned char digest[20], SHA1_CTX* context);



#elif defined(HAVE_OPENSSL_SHA_H)

#include <openssl/sha.h>

#elif defined(HAVE_SSL_SHA_H)

#include <ssl/sha.h>

#elif defined(HAVE_SHA_H)

#include <sha.h>

#endif



#ifdef __cplusplus

}

#endif



#endif  // SHA1_H