lilcrypto/hash.c

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/*
* Copyright (c) 2024 Lucas Gabriel Vuotto <lucas@lgv5.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdlib.h>
#include "internal.h"
int
lc_hash_init(struct lc_hash_ctx *ctx)
{
return ctx->impl->init(ctx->arg);
}
int
lc_hash_update(struct lc_hash_ctx *ctx, const uint8_t *in, size_t inlen)
{
return ctx->impl->update(ctx->arg, in, inlen);
}
int
lc_hash_final(struct lc_hash_ctx *ctx, uint8_t *out, size_t *outlen)
{
return ctx->impl->final(ctx->arg, out, outlen);
}
int
lc_hash(const struct lc_hash_impl *impl, uint8_t *out, size_t *outlen,
const uint8_t *in, size_t inlen)
{
return impl->hash(out, outlen, in, inlen);
}
struct lc_hash_ctx *
lc_hash_ctx_new(const struct lc_hash_impl *impl)
{
struct lc_hash_ctx *ctx;
ctx = malloc(sizeof(*ctx));
if (ctx == NULL)
return NULL;
if (impl->argsz > 0) {
ctx->arg = malloc(impl->argsz);
if (ctx->arg == NULL) {
free(ctx);
return NULL;
}
} else
ctx->arg = NULL;
ctx->impl = impl;
return ctx;
}
void
lc_hash_ctx_free(struct lc_hash_ctx *ctx)
{
if (ctx != NULL)
free(ctx->arg);
free(ctx);
}