/*
 * Copyright 2014 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file is distributed
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */

#include <string.h>
#include <ctype.h>

#include "error/s2n_errno.h"

#include "utils/s2n_safety.h"
#include "utils/s2n_blob.h"

#include <s2n.h>

int s2n_blob_init(struct s2n_blob *b, uint8_t * data, uint32_t size)
{
    b->data = data;
    b->size = size;
    return 0;
}

int s2n_blob_zero(struct s2n_blob *b)
{
    memset_check(b->data, 0, b->size);

    return 0;
}

int s2n_blob_char_to_lower(struct s2n_blob *b)
{
    uint8_t *ptr = b->data;
    for (int i = 0; i < b->size; i++ ) {
        *ptr = tolower(*ptr);
        ptr++;
    }

    return 0;
}