Function cbm_extract_binary_from_targz

src/cli/cli.c:6191–6233

}

unsigned char *cbm_extract_binary_from_targz(const unsigned char *data, int data_len,
                                             int *out_len) {
    if (!data || data_len <= 0 || !out_len) {
        return NULL;
    }

    size_t total = 0;
    unsigned char *decompressed = gzip_decompress(data, data_len, &total);
    if (!decompressed) {
        return NULL;
    }

    /* Parse tar: find entry starting with "codebase-memory-mcp" */
    size_t pos = 0;
    while (pos + TAR_BLOCK_SIZE <= total) {
        const unsigned char *hdr = decompressed + pos;

        if (is_tar_end_of_archive(hdr)) {
            break;
        }

        char name[TAR_NAME_LEN] = {0};
        memcpy(name, hdr, TAR_NAME_LEN - SKIP_ONE);
        char size_str[TAR_SIZE_LEN] = {0};
        memcpy(size_str, hdr + TAR_SIZE_OFFSET, TAR_SIZE_LEN - SKIP_ONE);
        long file_size = strtol(size_str, NULL, OCTAL_BASE);
        char typeflag = (char)hdr[TAR_TYPE_OFFSET];
        pos += TAR_BLOCK_SIZE;

        unsigned char *found = tar_try_extract_binary(hdr, typeflag, name, decompressed, pos,
                                                      file_size, total, out_len);
        if (found) {
            free(decompressed);
            return found;
        }

        size_t blocks = ((size_t)file_size + TAR_BLOCK_MASK) / TAR_BLOCK_SIZE;
        pos += blocks * TAR_BLOCK_SIZE;
    }

    free(decompressed);
    return NULL; /* binary not found */
}

/* ── Zip extraction (in-memory, replaces external unzip) ──────── */