#include "stdafx.h"
#include <direct.h>
#include <errno.h>
#include <io.h>
#include "dwgcplib.h"

#include "rxregsvc.h"
#include "acgiutil.h"
#include "axlock.h"
#include "dbobjptr.h"
#include "dbbody.h"
#include "actrans.h"
#include "acgs.h"
#include "gs.h"

// bug fixed on 2003/10/9
#define MAXBUFSIZE   1000
TUTIL_IMPEXP int FileCompare(const TCHAR *szFile1, const TCHAR *szFile2)
{
    FILE *fp1=_tfopen(szFile1, _T("rb"));
    if(!fp1)
        return -2;
    FILE *fp2=_tfopen(szFile2, _T("rb"));
    if(!fp2) {
        fclose(fp1);
        return -2;
    }
    long flen1 = _filelength(_fileno(fp1));
    long flen2 = _filelength(_fileno(fp2));

    if(flen1!=flen2) {
        fclose(fp1);
        fclose(fp2);
        return (flen1>flen2? 1: -1);
    } else {
        TCHAR buf1[MAXBUFSIZE], buf2[MAXBUFSIZE]; 
        long blockNum=flen1/MAXBUFSIZE,
             blockLeft=flen1%MAXBUFSIZE;
        for(long j=0; j<blockNum; j++) {
             fread(buf1, 1, MAXBUFSIZE, fp1);
             fread(buf2, 1, MAXBUFSIZE, fp2);
             int nRet=memcmp(buf1, buf2, MAXBUFSIZE);
             if(nRet) {
                 fclose(fp1);
                 fclose(fp2);
                 return nRet;
             }
        }
        if(blockLeft) {
             fread(buf1, 1, blockLeft, fp1);
             fread(buf2, 1, blockLeft, fp2);
             int nRet=memcmp(buf1, buf2, blockLeft);
             if(nRet) {
                 fclose(fp1);
                 fclose(fp2);
                 return nRet;
             }
        }
    }
    fclose(fp1);
    fclose(fp2);
    return 0;
}