// This file is under GNU General Public License 3.0

// see LICENSE.txt

#include "asn1_helper.h"

#include <assert.h>

#include <stdlib.h>

growing_buf_t *new_growing_buf(void)

{

    growing_buf_t *result = calloc(1, sizeof(growing_buf_t));

    assert(result);

    return result;

}

void free_growing_buf(growing_buf_t *buf)

{

    if (buf) {

        free(buf->data);

        free(buf);

    }

}

int consume_bytes(const void *src, size_t size, growing_buf_t *dst)

{

    assert(src && dst);

    if (!(src && dst))

        return -1;

    char *new_data = realloc(dst->data, dst->size + size + 1);

    assert(new_data);

    if (!new_data)

        return -1;

    dst->data = new_data;

    memcpy(dst->data + dst->size, src, size);

    dst->size += size;

    dst->data[dst->size] = 0; // safeguard

    return 1;

}