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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.
*/
/*
* C Implementation: grib_cmp
*
* Description: Binary comparison between two files
*
*/
#include "grib_api_internal.h"
void usage(char* progname) {
printf("\nUsage: %s file file\n",progname);
exit(1);
}
/*extern int errno;*/
int main(int argc, char *argv[]) {
int err=0,count=0,ret1=0,ret2=0;
char *file1=NULL,*file2=NULL;
FILE *f1 = NULL;
FILE *f2 = NULL;
unsigned char buff1[1000000];
unsigned char buff2[1000000];
grib_context* c;
size_t size1,size2;
fprintf(stderr, "\nWARNING: The tool %s is deprecated. Please use grib_compare instead.\n\n", argv[0]);
if (argc != 3) usage(argv[0]);
file1=argv[1];
file2=argv[2];
f1 = fopen(file1,"r");
if(!f1) {perror(file1); exit(1);}
f2 = fopen(file2,"r");
if(!f2) {perror(file2);exit(1);}
count=1;
c=grib_context_get_default();
size1=sizeof(buff1);
size2=sizeof(buff2);
while (((ret1=grib_read_any_from_file(c,f1,buff1,&size1))==GRIB_SUCCESS) &
((ret2=grib_read_any_from_file(c,f2,buff2,&size2))==GRIB_SUCCESS) ) {
if (size1!=size2 || memcmp(buff1,buff2,size1)) {
printf("message %d are different\n",count);
break;
}
size1=sizeof(buff1);
size2=sizeof(buff2);
count++;
}
/* old cmp
count=1;
while (!feof(f1) && !feof(f2)) {
if (fread(&a,1,1,f1) != 1 && !feof(f1)) {
printf("%s error: %s\n",file1,strerror(errno));
exit(1);
}
if (fread(&b,1,1,f2)!=1 && !feof(f2)) {
printf("%s error: %s\n",file2,strerror(errno));
exit(1);
}
if (a != b) {
printf("%s differs from %s at byte %d (0x%.2X != 0x%.2X) \n",file1,file2,count,a,b);
return 1;
}
count++;
}
*/
fclose(f1);
fclose(f2);
if (!ret1 && ret2==GRIB_END_OF_FILE) {
printf("%s bigger than %s\n",file1,file2);
return 1;
}
if (!ret2 && ret1==GRIB_END_OF_FILE) {
printf("%s bigger than %s\n",file2,file1);
return 1;
}
if (ret2!=GRIB_END_OF_FILE && ret2 ) {
printf("%s message %d: %s\n",file1,count,grib_get_error_message(ret2));
err++;
}
if (ret1!=GRIB_END_OF_FILE && ret1) {
printf("%s message %d: %s\n",file1,count,grib_get_error_message(ret1));
err++;
}
return err;
}
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