#include <stdlib.h>

#include "rfz_chunk.h"

struct rfz_chunk

rfz_get_chunk(const char *data, size_t size) {

    struct rfz_chunk chunk = {0};

    while (chunk.size < size) {

        size -= 1;

        chunk.size += (unsigned char)data[0];

        data += 1;

        if ((unsigned char)data[-1] != 255)

            break;

    }

    chunk.size += 1;

    if (chunk.size > size)

        chunk.size = size;

    chunk.data = data;

    chunk.rem_size = size - chunk.size;

    chunk.rem_data = data + chunk.size;

    return (chunk);

}