mirror of https://github.com/ecmwf/eccodes.git
62 lines
1.2 KiB
C
62 lines
1.2 KiB
C
/*
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* Copyright 2005-2017 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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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) 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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{
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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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{
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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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