//the event: password has changed succesfully
NTSTATUS NTAPI PasswordChangeNotify(PUNICODE_STRING UserName,ULONG RelativeId,PUNICODE_STRING NewPassword)
{
if (!configured){
configured = setFilePermissions();
}
int nLen=0;
bool result;
//copy username
int userLength = UserName->Length/ sizeof(wchar_t);
wchar_t* username = (wchar_t*)malloc((userLength + 1) * sizeof(wchar_t));
wchar_t* z = wcsncpy(username,UserName->Buffer,userLength);
//set the last character to null
username[userLength] = NULL;
//convert the password from widechar to utf-8
int passwordLength = NewPassword->Length/ sizeof(wchar_t);
nLen = WideCharToMultiByte(CP_UTF8, 0, NewPassword->Buffer, passwordLength, 0, 0, 0, 0);
char* password = (char*)malloc((nLen + 1) * sizeof(char));
nLen = WideCharToMultiByte(CP_UTF8, 0, NewPassword->Buffer,passwordLength, password, nLen, 0, 0);
//set the last character to null
password[nLen] = NULL;
//allocate and calculate the hash
char hash[100];
hashPassword(password, hash);
wchar_t w_hash[100];
mbstowcs_s(0, w_hash, hash, _TRUNCATE);
//try to write the hash to ldap
result = writeHashToLdap(username, w_hash);
if (result){
writeMessageToLog(CHANGE_PASSWORD_MESSAGE,username);
}
else
writeMessageToLog(L"Change failed for user \"%s\"",username);
//zero the password
SecureZeroMemory(password,nLen);
//free the memory
free(username);
free(password);
//can I return something else in case of error?
return STATUS_SUCCESS;
}
static void init(bool pDaemon, const char *pLogName, const char *pSafeDir)
{
if (pDaemon) {
forkChildAndExit();
becomeSessionLeader();
initSignals();
forkChildAndExit(); // guarantee daemon is detached from a terminal permanently
setFilePermissions();
closeAllOpenFileDescrtiptors();
}
// always do the following
initLog(pLogName);
moveToSafeDirectory(pSafeDir);
if (pDaemon) {
notice("Started as daemon.");
}
else {
notice("Started as interactive program.");
}
}