/*
 * $Id$
 * 'OpenSSL for Ruby' project
 * Copyright (C) 2001-2002  Michal Rokos <m.rokos@sh.cvut.cz>
 * All rights reserved.
 */
/*
 * This program is licenced under the same licence as Ruby.
 * (See the file 'LICENCE'.)
 */
#if !defined(_OSSL_DIGEST_H_)
#define _OSSL_DIGEST_H_

extern VALUE mDigest;
extern VALUE cDigest;
extern VALUE eDigestError;

const EVP_MD *GetDigestPtr(VALUE);
void Init_ossl_digest(void);

#define GetDigest(obj, ctx) do { \
    Data_Get_Struct(obj, EVP_MD_CTX, ctx); \
    if (!ctx) { \
        ossl_raise(rb_eRuntimeError, "Digest CTX wasn't initialized!"); \
    } \
} while (0)
#define SafeGetDigest(obj, ctx) do { \
    OSSL_Check_Kind(obj, cDigest); \
    GetDigest(obj, ctx); \
} while (0)

#endif /* _OSSL_DIGEST_H_ */