eccodes/tools/big2gribex.c

81 lines
1.4 KiB
C

/*
* Copyright 2005-2019 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.
*/
/*
* C Implementation: big2gribex
*
* Description:
*
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "grib_api.h"
void usage(char*);
int main(int argc, char *argv[])
{
grib_handle* h = NULL;
FILE* inf = NULL;
FILE* ouf = NULL;
char* infile=0;
char* oufile=0;
int err = 0;
size_t size;
const void* buffer=NULL;
if (argc < 3) usage(argv[0]);
infile=argv[1];
oufile=argv[2];
inf = fopen(infile,"r");
if(!inf) {
perror(infile);
exit(1);
}
ouf = fopen(oufile,"w");
if(!ouf) {
perror(oufile);
exit(1);
}
while((h = grib_handle_new_from_file(0,inf,&err)) != NULL) {
grib_update_sections_lengths(h);
GRIB_CHECK(grib_get_message(h,&buffer,&size),0);
if(fwrite(buffer,1,size,ouf) != size) {
perror(oufile);
exit(1);
}
}
grib_handle_delete(h);
if(fclose(inf)) {
perror(infile);
exit(1);
}
if(fclose(ouf)) {
perror(oufile);
exit(1);
}
return 0;
}
void usage(char* progname) {
printf("\nUsage: %s grib_in grib_out\n",progname);
exit(1);
}