mirror of https://github.com/ecmwf/eccodes.git
106 lines
2.5 KiB
C
106 lines
2.5 KiB
C
/*
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* Copyright 2005-2015 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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/*
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* C Implementation: grib_cmp
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*
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* Description: Binary comparison between two files
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*
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*/
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#include "grib_api_internal.h"
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void usage(char* progname) {
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printf("\nUsage: %s file file\n",progname);
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exit(1);
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}
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/*extern int errno;*/
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int main(int argc, char *argv[]) {
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int err=0,count=0,ret1=0,ret2=0;
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char *file1=NULL,*file2=NULL;
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FILE *f1 = NULL;
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FILE *f2 = NULL;
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unsigned char buff1[1000000];
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unsigned char buff2[1000000];
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grib_context* c;
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size_t size1,size2;
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fprintf(stderr, "\nWARNING: The tool %s is deprecated. Please use grib_compare instead.\n\n", argv[0]);
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if (argc != 3) usage(argv[0]);
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file1=argv[1];
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file2=argv[2];
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f1 = fopen(file1,"r");
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if(!f1) {perror(file1); exit(1);}
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f2 = fopen(file2,"r");
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if(!f2) {perror(file2);exit(1);}
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count=1;
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c=grib_context_get_default();
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size1=sizeof(buff1);
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size2=sizeof(buff2);
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while (((ret1=grib_read_any_from_file(c,f1,buff1,&size1))==GRIB_SUCCESS) &
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((ret2=grib_read_any_from_file(c,f2,buff2,&size2))==GRIB_SUCCESS) ) {
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if (size1!=size2 || memcmp(buff1,buff2,size1)) {
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printf("message %d are different\n",count);
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break;
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}
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size1=sizeof(buff1);
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size2=sizeof(buff2);
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count++;
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}
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/* old cmp
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count=1;
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while (!feof(f1) && !feof(f2)) {
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if (fread(&a,1,1,f1) != 1 && !feof(f1)) {
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printf("%s error: %s\n",file1,strerror(errno));
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exit(1);
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}
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if (fread(&b,1,1,f2)!=1 && !feof(f2)) {
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printf("%s error: %s\n",file2,strerror(errno));
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exit(1);
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}
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if (a != b) {
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printf("%s differs from %s at byte %d (0x%.2X != 0x%.2X) \n",file1,file2,count,a,b);
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return 1;
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}
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count++;
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}
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*/
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fclose(f1);
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fclose(f2);
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if (!ret1 && ret2==GRIB_END_OF_FILE) {
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printf("%s bigger than %s\n",file1,file2);
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return 1;
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}
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if (!ret2 && ret1==GRIB_END_OF_FILE) {
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printf("%s bigger than %s\n",file2,file1);
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return 1;
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}
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if (ret2!=GRIB_END_OF_FILE && ret2 ) {
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printf("%s message %d: %s\n",file1,count,grib_get_error_message(ret2));
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err++;
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}
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if (ret1!=GRIB_END_OF_FILE && ret1) {
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printf("%s message %d: %s\n",file1,count,grib_get_error_message(ret1));
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err++;
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}
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return err;
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}
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