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extract https://github.com/kazuho/mruby-digest @ 67b734f () at deps/mruby-digest

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This commit is contained in:
Kazuho Oku 2022-07-14 16:45:17 +09:00
parent ce5cebc7f4
commit df01d7feef
1 changed files with 9 additions and 6 deletions
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15
deps/mruby-digest/src/picohash.h vendored
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@ -25,7 +25,7 @@
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
#define _PICOHASH_BIG_ENDIAN
#endif
#else // ! defined __LITTLE_ENDIAN__
#elif !defined(_WIN32)
#include <endian.h> // machine/endian.h
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
#define _PICOHASH_BIG_ENDIAN
@ -35,11 +35,12 @@
#define PICOHASH_MD5_BLOCK_LENGTH 64
#define PICOHASH_MD5_DIGEST_LENGTH 16
typedef struct {
typedef struct _picohash_md5_ctx_t {
uint_fast32_t lo, hi;
uint_fast32_t a, b, c, d;
unsigned char buffer[64];
uint_fast32_t block[PICOHASH_MD5_DIGEST_LENGTH];
const void *(*_body)(struct _picohash_md5_ctx_t *ctx, const void *data, size_t size);
} _picohash_md5_ctx_t;
static void _picohash_md5_init(_picohash_md5_ctx_t *ctx);
@ -268,6 +269,8 @@ inline void _picohash_md5_init(_picohash_md5_ctx_t *ctx)
ctx->lo = 0;
ctx->hi = 0;
ctx->_body = _picohash_md5_body;
}
inline void _picohash_md5_update(_picohash_md5_ctx_t *ctx, const void *data, size_t size)
@ -293,11 +296,11 @@ inline void _picohash_md5_update(_picohash_md5_ctx_t *ctx, const void *data, siz
memcpy(&ctx->buffer[used], data, free);
data = (const unsigned char *)data + free;
size -= free;
_picohash_md5_body(ctx, ctx->buffer, 64);
ctx->_body(ctx, ctx->buffer, 64);
}
if (size >= 64) {
data = _picohash_md5_body(ctx, data, size & ~(unsigned long)0x3f);
data = ctx->_body(ctx, data, size & ~(unsigned long)0x3f);
size &= 0x3f;
}
@ -317,7 +320,7 @@ inline void _picohash_md5_final(_picohash_md5_ctx_t *ctx, void *_digest)
if (free < 8) {
memset(&ctx->buffer[used], 0, free);
_picohash_md5_body(ctx, ctx->buffer, 64);
ctx->_body(ctx, ctx->buffer, 64);
used = 0;
free = 64;
}
@ -334,7 +337,7 @@ inline void _picohash_md5_final(_picohash_md5_ctx_t *ctx, void *_digest)
ctx->buffer[62] = ctx->hi >> 16;
ctx->buffer[63] = ctx->hi >> 24;
_picohash_md5_body(ctx, ctx->buffer, 64);
ctx->_body(ctx, ctx->buffer, 64);
digest[0] = ctx->a;
digest[1] = ctx->a >> 8;