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/*
* (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"
#undef NDEBUG
#include <assert.h>
int main(int argc, char* argv[])
{
codes_handle* h = NULL;
size_t len = 0;
int err = 0;
assert(argc == 4);
const char* prod = argv[1];
const char* infile = argv[2];
FILE* in = fopen(infile, "rb");
assert(in);
char* key = argv[3];
char kvalue[2] = {0,}; // deliberately short
ProductKind productKind = PRODUCT_GRIB;
if (strcmp(prod, "BUFR")==0) productKind = PRODUCT_BUFR;
if (strcmp(prod, "GTS")==0) productKind = PRODUCT_GTS;
if (strcmp(prod, "ANY")==0) productKind = PRODUCT_ANY;
h = codes_handle_new_from_file(NULL, in, productKind, &err);
assert(h);
assert(!err);
CODES_CHECK(codes_get_length(h, key, &len), 0);
printf("Correct len=|%zu|\n", len);
len = 1; // Cause it to fail
err = codes_get_string(h, key, kvalue, &len);
//printf("err=%d kvalue=|%s|\n", err, kvalue);
assert(err == CODES_BUFFER_TOO_SMALL);
// The correct len should have been set
assert(len > 1);
codes_handle_delete(h);
fclose(in);
return 0;
}
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