Name:
Anonymous
2009-02-23 20:14
#include <windows.h>
#include <winreg.h>
#define CRYPTLEN 15
#define KEYLEN 29
#define KEYOFFSET 52
#define ALLOCSIZE 256
typedef unsigned char uchar;
char *str = "BCDFGHJKMPQRTVWXY2346789";
int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd) {
HKEY CurrentVersion;
DWORD type = REG_BINARY;
uchar *key, *buf;
int ret = EXIT_FAILURE, size = ALLOCSIZE, i, j, k, l;
if(((NULL == (buf = (uchar*)HeapAlloc(GetProcessHeap(), 0, ALLOCSIZE))) || (NULL == (key = (uchar*)HeapAlloc(GetProcessHeap(), 0, KEYLEN + 1)))) && (buf = "HeapAlloc()"))
goto _error_malloc;
if(ERROR_SUCCESS != (i = RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\0", 0, KEY_READ, &CurrentVersion)))
goto _error_RegOpen;
if((ERROR_SUCCESS != (i = RegQueryValueEx(CurrentVersion, "DigitalProductId\0", NULL, &type, buf, &size))) && RegCloseKey(CurrentVersion))
goto _error_RegOpen;
for (i = KEYLEN - 1; i > -1; i--) {
if((i + 1) % 6 == 0)
key[i] = '-';
else {
k = 0;
for (j = CRYPTLEN; j > -1; j--) {
l = (k << 8) | buf[j + KEYOFFSET];
buf[j + KEYOFFSET] = l / 24;
k = (l % 24);
}
key[i] = str[k];
}
}
key[KEYLEN] = '\0';
MessageBox(NULL, key, "Key:", MB_OKCANCEL);
ret = EXIT_SUCCESS;
goto _free;
_error_RegOpen:
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, i, 0, buf, ALLOCSIZE, NULL);
_error_malloc:
MessageBox(NULL, buf, "Error", MB_OK);
_free:
HeapFree(GetProcessHeap(), 0, buf);
HeapFree(GetProcessHeap(), 0, key);
return ret;
}
Name:
Anonymous
2009-02-24 9:15
>>11
I wrote my own compiler which doesn't.