/*
 * (C) Copyright 2005- ECMWF.
 *
 * This software is licensed under the terms of the Apache Licence Version 2.0
 * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
 *
 * In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
 * virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
 */
#include "eccodes.h"

void usage(char* prog)
{
    printf("usage: %s in.nc\n", prog);
    exit(1);
}

int main(int argc, char* argv[])
{
    char* file;
    int err = 0;
    codes_handle* h;
    char identifier[7] = {0,};
    size_t len       = 7;
    codes_context* c = codes_context_get_default();

    if (argc > 2) usage(argv[0]);

    file = argv[1];

    h = codes_handle_new_from_nc_file(c, file, &err);
    codes_get_string(h, "identifier", identifier, &len);
    printf("%s\n", identifier);
    CODES_CHECK(err, 0);

    return err;
}