Function pg_cryptohash_create

src/common/cryptohash.c:66–84

* pg_cryptohash_create * * Allocate a hash context. Returns NULL on failure for an OOM. The * backend issues an error, without returning. */

 * backend issues an error, without returning.
 */
pg_cryptohash_ctx *
pg_cryptohash_create(pg_cryptohash_type type)
{
	pg_cryptohash_ctx *ctx;

	/*
	 * Note that this always allocates enough space for the largest hash. A
	 * smaller allocation would be enough for md5, sha224 and sha256, but the
	 * small extra amount of memory does not make it worth complicating this
	 * code.
	 */
	ctx = ALLOC(sizeof(pg_cryptohash_ctx));
	if (ctx == NULL)
		return NULL;
	memset(ctx, 0, sizeof(pg_cryptohash_ctx));
	ctx->type = type;

	return ctx;
}

/*
 * pg_cryptohash_init