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digest.h - header file for ruby digest modules

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$Author$

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created at: Fri May 25 08:54:56 JST 2001

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Copyright (C) 2001-2006 Akinori MUSHA

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$RoughId: digest.h,v 1.3 2001/07/13 15:38:27 knu Exp $

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$Id$

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#include "ruby.h"

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#define RUBY_DIGEST_API_VERSION 3

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typedef int (*rb_digest_hash_init_func_t)(void *);

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typedef void (*rb_digest_hash_update_func_t)(void *, unsigned char *, size_t);

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typedef int (*rb_digest_hash_finish_func_t)(void *, unsigned char *);

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typedef struct {

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int api_version;

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size_t digest_len;

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size_t block_len;

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size_t ctx_size;

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rb_digest_hash_init_func_t init_func;

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rb_digest_hash_update_func_t update_func;

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rb_digest_hash_finish_func_t finish_func;

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} rb_digest_metadata_t;

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#define DEFINE_UPDATE_FUNC_FOR_UINT(name) \

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void \

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rb_digest_##name##_update(void *ctx, unsigned char *ptr, size_t size) \

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{ \

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const unsigned int stride = 16384; \

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\

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for (; size > stride; size -= stride, ptr += stride) { \

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name##_Update(ctx, ptr, stride); \

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} \

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if (size > 0) name##_Update(ctx, ptr, size); \

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}

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#define DEFINE_FINISH_FUNC_FROM_FINAL(name) \

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int \

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rb_digest_##name##_finish(void *ctx, unsigned char *ptr) \

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{ \

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return name##_Final(ptr, ctx); \

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}

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static inline VALUE

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rb_digest_namespace(void)

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{

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rb_require("digest");

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return rb_path2class("Digest");

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}

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static inline ID

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rb_id_metadata(void)

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{

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return rb_intern_const("metadata");

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}

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