Длина строки файла

void KCompare (CHAR , CHAR , int);
void KCompare ( CHAR string1[rmaxf1],  CHAR string2[rmaxf2], int KEY)
{
char tmp[20]; int result;
result=_tcsncmp (( TCHAR *) string1, ( TCHAR *) string2, KEY);
if (result==0)
{ strcpy( tmp, "equal to" );
printf( "Result:\t\tString 1 is %s string 2\n\n", tmp );
}
else
{ strcpy( tmp, "noequal to" );
printf( "Result:\t\tString 1 is %s string 2\n\n", tmp );
}
}
int _tmain (int argc, LPTSTR argv []) 
{
HANDLE hFile, hFile2, hMap;
LPVOID  pFile;
CHAR string1[rmaxf1], string2[rmaxf2]; 
CHAR Buffer1[BUF_SIZE], Buffer2[BUF_SIZE];
DWORD FsLow, nf2; 
int i, j, k, KEY;
BOOL f2;
LPCTSTR pF;
hFile = CreateFile (argv[1], GENERIC_READ, 0, NULL, 
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
FsLow = GetFileSize (hFile, NULL); 
printf("Fs=%d\n",(int)FsLow);
hMap = CreateFileMapping (hFile, NULL, PAGE_READONLY,
0, 0, NULL); 
pFile = MapViewOfFile (hMap, FILE_MAP_READ, 0, 0, 0);
pF= (LPCTSTR)pFile;
for (i=0; i< (int)FsLow; i++)
{
Buffer1[i]=*pF;
pF++;
}
for (i=0; i< (int)FsLow; i++)
printf("%c",Buffer1[i]);
printf("\n");
hFile2 = CreateFile (argv[2], GENERIC_READ, 0, NULL, 
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); 
f2=ReadFile(hFile2, Buffer2, BUF_SIZE, &nf2, NULL);
KEY=GetFileSize (hFile2, NULL); 
printf("KEY=%d\n", (int)KEY);
for (i=0; i< (int)KEY; i++)
printf("%c",Buffer2[i]);
printf("\n");
for (i=0; i< (int)KEY; i++)
string2[i]=Buffer2[i];
k=0;
do
{
i=k;
do
{
for (j=0; j<(int)KEY;j++)
{
string1[j]=Buffer1[j+i];
printf("%c",string1[j]);
}
printf("\n");
getchar();
KCompare(string1, string2, (int)KEY);
i=i+KEY;
}
while (i<(int)FsLow-(int)KEY+1);
k=k+1;
}
while (k<(int)FsLow-(int)KEY+1);
/* Выводим исходный файл. */
_tprintf(_T("%s"),pFile); 
UnmapViewOfFile (pFile); 
CloseHandle (hMap); 
CloseHandle (hFile);  
CloseHandle (hFile2);  
return 0;
}

if( (fr = fopen(fLFc, "r")) == NULL)
  MessageBox(hWnd, _T("Файл не найден."), _T("ERROR!"), MB_OK);
while(!feof(fr))
        {
            fgets(textbuf, sizeof(textbuf), fr);
            fLFl++;
        }
if((fLFl != 1) || (strlen(textbuf) != 0))
        {
            fseek(fr, 0L,SEEK_SET);
            while(!feof(fr))
            {
                fgets(textbuf, sizeof(textbuf), fr);
                dl = strlen(textbuf);
...