buffer.c

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/* Copyright 2012 exMULTI, Inc.
 * Distributed under the MIT/X11 software license, see the accompanying
 * file COPYING or http://www.opensource.org/licenses/mit-license.php.
 */

#include "buffer.h"

#include <stdlib.h>
#include <string.h>

btc_bool buffer_equal(const void* a_, const void* b_)
{
    const struct buffer* a = a_;
    const struct buffer* b = b_;

    if (a->len != b->len)
        return false;
    return memcmp(a->p, b->p, a->len) == 0;
}

void buffer_free(void* struct_buffer)
{
    struct buffer* buf = struct_buffer;
    if (!buf)
        return;

    free(buf->p);
    free(buf);
}

struct buffer* buffer_copy(const void* data, size_t data_len)
{
    struct buffer* buf;
    buf = malloc(sizeof(*buf));
    if (!buf)
        goto err_out;

    buf->p = malloc(data_len);
    if (!buf->p)
        goto err_out_free;

    memcpy(buf->p, data, data_len);
    buf->len = data_len;

    return buf;

err_out_free:
    free(buf);
err_out:
    return NULL;
}