mirror of https://github.com/ecmwf/eccodes.git
79 lines
2.3 KiB
C
79 lines
2.3 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 <stdlib.h>
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#include "grib_api_internal.h"
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int main(int argc, char** argv)
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{
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int err = 0;
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size_t size = 0;
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FILE* in = NULL;
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const char* infile = "../data/test_uuid.grib2";
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FILE* out = NULL;
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const char* outfile = "temp.grib_set_bytes.grib";
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grib_handle* h = NULL;
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const void* buffer = NULL;
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unsigned char uuid_short[] = { /* not enough bytes */
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0x07, 0x20, 0x40, 0x51,
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0x07, 0x20, 0x40, 0x51,
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0x07, 0x20, 0x40, 0x52,
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0x07, 0x20, 0x40
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};
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unsigned char uuid_good[] = { /* Just the right size i.e. 16 bytes */
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0x07, 0x20, 0x40, 0x51,
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0x07, 0x20, 0x40, 0x51,
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0x07, 0x20, 0x40, 0x52,
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0x07, 0x20, 0x40, 0x53
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};
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unsigned char uuid_long[] = { /* Too many bytes */
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0x07, 0x20, 0x40, 0x51,
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0x07, 0x20, 0x40, 0x51,
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0x07, 0x20, 0x40, 0x52,
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0x07, 0x20, 0x40, 0x53,
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0x00, 0x01
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};
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size_t uuid_short_len = sizeof (uuid_short);
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size_t uuid_good_len = sizeof (uuid_good);
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size_t uuid_long_len = sizeof (uuid_long);
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in = fopen(infile, "rb");
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Assert(in);
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out = fopen(outfile, "wb");
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Assert(out);
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h = grib_handle_new_from_file(0, in, &err);
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Assert(h);
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/* The uuidOfVGrid key is 16 bytes long */
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err = grib_set_bytes(h, "uuidOfVGrid", uuid_short, &uuid_short_len);
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Assert(err == GRIB_BUFFER_TOO_SMALL);
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err = grib_set_bytes(h, "uuidOfVGrid", uuid_long, &uuid_long_len);
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Assert(err == GRIB_BUFFER_TOO_SMALL);
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/* This one should work */
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err = grib_set_bytes(h, "uuidOfVGrid", uuid_good, &uuid_good_len);
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Assert(err == 0);
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GRIB_CHECK(grib_get_message(h, &buffer, &size), 0);
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if (fwrite(buffer, 1, size, out) != size) {
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perror(argv[1]);
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exit(1);
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}
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grib_handle_delete(h);
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fclose(in);
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fclose(out);
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return 0;
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}
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