天堂2文件校验算法的代码（转别人的） [复制链接]

DWORD L2FileCheck(char *file) n9]^v-]K  
{ n9]^v-]K  
DWORD Check=0xFFFFFFFF; n9]^v-]K  
HANDLE hFile; n9]^v-]K  
DWORD dwFileSize; n9]^v-]K  
DWORD dwNumberOfBytesReadWritten; n9]^v-]K  
HANDLE hMemory; n9]^v-]K  
LPVOID pMemory; n9]^v-]K  
char filename[MAX_PATH]; n9]^v-]K  
BYTE *temp; n9]^v-]K  
BYTE temp1,temp2; n9]^v-]K  
int Max=0,Min=0; n9]^v-]K  
temp =(unsigned char *)malloc(0x1000); n9]^v-]K  
hFile=CreateFile(file, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_ARCHIVE, 0); n9]^v-]K  
if(hFile != INVALID_HANDLE_value) n9]^v-]K  
{ n9]^v-]K  
dwFileSize=GetFileSize(hFile, NULL); n9]^v-]K  
hMemory=GlobalAlloc(GMEM_MOVEABLE | GMEM_ZEROINIT, dwFileSize); n9]^v-]K  
pMemory=GlobalLock(hMemory); n9]^v-]K  
Max = (dwFileSize-0x14)/0x1000; n9]^v-]K  
Min = (dwFileSize-0x14)%0x1000; n9]^v-]K  
for(int j=0;j<Max;j++) n9]^v-]K  
{ n9]^v-]K  
ReadFile(hFile,pMemory,0x1000,&dwNumberOfBytesReadWritten,NULL); n9]^v-]K  
memcpy(temp,pMemory,0x1000); n9]^v-]K  
for(int k=0;k<0x1000;k++) n9]^v-]K  
{ n9]^v-]K  
temp1=*(BYTE *)(temp+k); n9]^v-]K  
temp2=(Check&0x000000FF) ^ temp1; n9]^v-]K  
Check=(Check >> 8) ^ FileCheck[temp2]; n9]^v-]K  
} n9]^v-]K  
} n9]^v-]K  
ReadFile(hFile,pMemory,Min,&dwNumberOfBytesReadWritten,NULL); n9]^v-]K  
memcpy(temp,pMemory,0x1000); n9]^v-]K  
for(j=0;j<Min;j++) n9]^v-]K  
{ n9]^v-]K  
BYTE temp1,temp2; n9]^v-]K  
temp1=*(BYTE *)(temp+j); n9]^v-]K  
temp2=(Check&0x000000FF) ^ temp1; n9]^v-]K  
Check=(Check >> 8) ^ FileCheck[temp2]; n9]^v-]K  
} n9]^v-]K  
_asm { n9]^v-]K  
push ecx n9]^v-]K  
mov ecx,Check n9]^v-]K  
not ecx n9]^v-]K  
mov Check,ecx n9]^v-]K  
pop ecx n9]^v-]K  
} n9]^v-]K  
CloseHandle(hFile); n9]^v-]K  
GlobalUnlock(pMemory); n9]^v-]K  
GlobalFree(hMemory); n9]^v-]K  
free(temp); n9]^v-]K  
return Check; n9]^v-]K  
} n9]^v-]K  
else n9]^v-]K  
{ n9]^v-]K  
return 0; n9]^v-]K  
} n9]^v-]K  
} n9]^v-]K  

看不懂

哎，郁闷，我还以为是EXP的~