text: /*
   * Copyright 2005-2016 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);
  }
  