mirror of https://github.com/ecmwf/eccodes.git
60 lines
1.4 KiB
C++
60 lines
1.4 KiB
C++
/*
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* (C) Copyright 2005- ECMWF.
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*
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* This software is licensed under the terms of the Apache Licence Version 2.0
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* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
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*
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* In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
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* virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
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*/
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#include <stdio.h>
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#include <string.h>
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#include "grib_api.h"
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static void usage(const char* prog)
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{
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fprintf(stderr, "%s: file\n", prog);
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exit(1);
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}
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int main(int argc, const char* argv[])
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{
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FILE* in;
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int e;
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grib_handle* h;
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if (argc != 2)
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usage(argv[0]);
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in = fopen(argv[argc - 1], "r");
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if (!in) {
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perror(argv[argc - 1]);
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exit(1);
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}
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while ((h = grib_handle_new_from_file(NULL, in, &e)) != NULL) {
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grib_keys_iterator* i = grib_keys_iterator_new(h, GRIB_KEYS_ITERATOR_ALL_KEYS, "mars");
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while (grib_keys_iterator_next(i)) {
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char value[1024];
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size_t len = sizeof(value);
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const char* name;
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name = grib_keys_iterator_get_name(i);
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GRIB_CHECK(grib_get_string(h, name, value, &len), 0);
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printf("%s = %s\n", name, value);
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}
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grib_keys_iterator_delete(i);
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grib_handle_delete(h);
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}
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GRIB_CHECK(e, argv[argc - 1]);
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return 0;
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}
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