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Edit File : digest.h \| Size : 3.10 KB
/********************************************** digest.h - header file for ruby digest modules $Author$ created at: Fri May 25 08:54:56 JST 2001 Copyright (C) 2001-2006 Akinori MUSHA $RoughId: digest.h,v 1.3 2001/07/13 15:38:27 knu Exp $ $Id$ *********************************************/ #include "ruby.h" #define RUBY_DIGEST_API_VERSION 3 typedef int (rb_digest_hash_init_func_t)(void ); typedef void (rb_digest_hash_update_func_t)(void , unsigned char , size_t); typedef int (rb_digest_hash_finish_func_t)(void , unsigned char ); typedef struct { int api_version; size_t digest_len; size_t block_len; size_t ctx_size; rb_digest_hash_init_func_t init_func; rb_digest_hash_update_func_t update_func; rb_digest_hash_finish_func_t finish_func; } rb_digest_metadata_t; #define DEFINE_UPDATE_FUNC_FOR_UINT(name) \ void \ rb_digest_##name##_update(void ctx, unsigned char ptr, size_t size) \ { \ const unsigned int stride = 16384; \ \ for (; size > stride; size -= stride, ptr += stride) { \ name##_Update(ctx, ptr, stride); \ } \ / Since size <= stride, size should fit into an unsigned int / \ if (size > 0) name##_Update(ctx, ptr, (unsigned int)size); \ } #define DEFINE_FINISH_FUNC_FROM_FINAL(name) \ int \ rb_digest_##name##_finish(void ctx, unsigned char ptr) \ { \ return name##_Final(ptr, ctx); \ } static inline VALUE rb_digest_namespace(void) { rb_require("digest"); return rb_path2class("Digest"); } static inline ID rb_id_metadata(void) { return rb_intern_const("metadata"); } #if !defined(HAVE_RB_EXT_RESOLVE_SYMBOL) #elif !defined(RUBY_UNTYPED_DATA_WARNING) # error RUBY_UNTYPED_DATA_WARNING is not defined #elif RUBY_UNTYPED_DATA_WARNING / rb_ext_resolve_symbol() has been defined since Ruby 3.3, but digest * bundled with 3.3 didn't use it. / # define DIGEST_USE_RB_EXT_RESOLVE_SYMBOL 1 #endif static inline VALUE rb_digest_make_metadata(const rb_digest_metadata_t meta) { #if defined(EXTSTATIC) && EXTSTATIC /* The extension is built as a static library, so safe to refer to * rb_digest_wrap_metadata directly. / extern VALUE rb_digest_wrap_metadata(const rb_digest_metadata_t meta); return rb_digest_wrap_metadata(meta); #else /* The extension is built as a shared library, so we can't refer * to rb_digest_wrap_metadata directly. / # ifdef DIGEST_USE_RB_EXT_RESOLVE_SYMBOL / If rb_ext_resolve_symbol() is available, use it to get the address of * rb_digest_wrap_metadata. / typedef VALUE (wrapper_func_type)(const rb_digest_metadata_t meta); static wrapper_func_type wrapper; if (!wrapper) { wrapper = (wrapper_func_type)(uintptr_t) rb_ext_resolve_symbol("digest.so", "rb_digest_wrap_metadata"); if (!wrapper) rb_raise(rb_eLoadError, "rb_digest_wrap_metadata not found"); } return wrapper(meta); # else / If rb_ext_resolve_symbol() is not available, keep using untyped * data. / # undef RUBY_UNTYPED_DATA_WARNING # define RUBY_UNTYPED_DATA_WARNING 0 return rb_obj_freeze(Data_Wrap_Struct(0, 0, 0, (void )meta)); # endif #endif } Back

Edit File : digest.h | Size : 3.10 KB

/************************************************

digest.h - header file for ruby digest modules

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

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

************************************************/

#include "ruby.h"

#define RUBY_DIGEST_API_VERSION	3

typedef int (*rb_digest_hash_init_func_t)(void *);
typedef void (*rb_digest_hash_update_func_t)(void *, unsigned char *, size_t);
typedef int (*rb_digest_hash_finish_func_t)(void *, unsigned char *);

typedef struct {
    int api_version;
    size_t digest_len;
    size_t block_len;
    size_t ctx_size;
    rb_digest_hash_init_func_t init_func;
    rb_digest_hash_update_func_t update_func;
    rb_digest_hash_finish_func_t finish_func;
} rb_digest_metadata_t;

#define DEFINE_UPDATE_FUNC_FOR_UINT(name) \
void \
rb_digest_##name##_update(void *ctx, unsigned char *ptr, size_t size) \
{ \
    const unsigned int stride = 16384; \
 \
    for (; size > stride; size -= stride, ptr += stride) { \
        name##_Update(ctx, ptr, stride); \
    } \
    /* Since size <= stride, size should fit into an unsigned int */ \
    if (size > 0) name##_Update(ctx, ptr, (unsigned int)size); \
}

#define DEFINE_FINISH_FUNC_FROM_FINAL(name) \
int \
rb_digest_##name##_finish(void *ctx, unsigned char *ptr) \
{ \
    return name##_Final(ptr, ctx); \
}

static inline VALUE
rb_digest_namespace(void)
{
    rb_require("digest");
    return rb_path2class("Digest");
}

static inline ID
rb_id_metadata(void)
{
    return rb_intern_const("metadata");
}

#if !defined(HAVE_RB_EXT_RESOLVE_SYMBOL)
#elif !defined(RUBY_UNTYPED_DATA_WARNING)
# error RUBY_UNTYPED_DATA_WARNING is not defined
#elif RUBY_UNTYPED_DATA_WARNING
/* rb_ext_resolve_symbol() has been defined since Ruby 3.3, but digest
 * bundled with 3.3 didn't use it. */
# define DIGEST_USE_RB_EXT_RESOLVE_SYMBOL 1
#endif

static inline VALUE
rb_digest_make_metadata(const rb_digest_metadata_t *meta)
{
#if defined(EXTSTATIC) && EXTSTATIC
    /* The extension is built as a static library, so safe to refer to
     * rb_digest_wrap_metadata directly. */
    extern VALUE rb_digest_wrap_metadata(const rb_digest_metadata_t *meta);
    return rb_digest_wrap_metadata(meta);
#else
    /* The extension is built as a shared library, so we can't refer
     * to rb_digest_wrap_metadata directly. */
# ifdef DIGEST_USE_RB_EXT_RESOLVE_SYMBOL
    /* If rb_ext_resolve_symbol() is available, use it to get the address of
     * rb_digest_wrap_metadata. */
    typedef VALUE (*wrapper_func_type)(const rb_digest_metadata_t *meta);
    static wrapper_func_type wrapper;
    if (!wrapper) {
        wrapper = (wrapper_func_type)(uintptr_t)
            rb_ext_resolve_symbol("digest.so", "rb_digest_wrap_metadata");
        if (!wrapper) rb_raise(rb_eLoadError, "rb_digest_wrap_metadata not found");
    }
    return wrapper(meta);
# else
    /* If rb_ext_resolve_symbol() is not available, keep using untyped
     * data. */
# undef RUBY_UNTYPED_DATA_WARNING
# define RUBY_UNTYPED_DATA_WARNING 0
    return rb_obj_freeze(Data_Wrap_Struct(0, 0, 0, (void *)meta));
# endif
#endif
}

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