Code modernize ...

* replace 0/NULL with nullptr [using clang-tidy]

3 files changed, 69 insertions, 69 deletions

diff --git a/plugins/ConnectionNotify/src/ConnectionNotify.cpp b/plugins/ConnectionNotify/src/ConnectionNotify.cpp
index fe7a0d9aa1..a989e81651 100644
--- a/plugins/ConnectionNotify/src/ConnectionNotify.cpp
+++ b/plugins/ConnectionNotify/src/ConnectionNotify.cpp
@@ -4,18 +4,18 @@ HINSTANCE hInst;
 CLIST_INTERFACE *pcli;

 

 //PLUGINLINK *pluginLink=NULL;

-HANDLE hOptInit = NULL;

-static HWND hTimerWnd = (HWND)NULL;

+HANDLE hOptInit = nullptr;

+static HWND hTimerWnd = (HWND)nullptr;

 static UINT TID = (UINT)12021;

 //HANDLE hHookModulesLoaded=NULL;

-HANDLE hCheckEvent = NULL;

-HANDLE hCheckHook = NULL;

-HANDLE hHookModulesLoaded = NULL;

-HANDLE hHookPreShutdown = NULL;

-HANDLE hConnectionCheckThread = NULL;

-HANDLE hFilterOptionsThread = NULL;

-HANDLE killCheckThreadEvent = NULL;

-HANDLE hExceptionsMutex = NULL;

+HANDLE hCheckEvent = nullptr;

+HANDLE hCheckHook = nullptr;

+HANDLE hHookModulesLoaded = nullptr;

+HANDLE hHookPreShutdown = nullptr;

+HANDLE hConnectionCheckThread = nullptr;

+HANDLE hFilterOptionsThread = nullptr;

+HANDLE killCheckThreadEvent = nullptr;

+HANDLE hExceptionsMutex = nullptr;

 //HANDLE hCurrentEditMutex=NULL;

 int hLangpack = 0;

 

@@ -32,11 +32,11 @@ int settingFiltersCount = 0;
 BOOL settingDefaultAction = TRUE;

 WORD settingStatusMask = 0;

 

-struct CONNECTION *first = NULL;

-struct CONNECTION *connExceptions = NULL;

+struct CONNECTION *first = nullptr;

+struct CONNECTION *connExceptions = nullptr;

 struct CONNECTION *connCurrentEdit;

-struct CONNECTION *connExceptionsTmp = NULL;

-struct CONNECTION *connCurrentEditModal = NULL;

+struct CONNECTION *connExceptionsTmp = nullptr;

+struct CONNECTION *connCurrentEditModal = nullptr;

 int currentStatus = ID_STATUS_OFFLINE, diffstat = 0;

 BOOL bOptionsOpen = FALSE;

 wchar_t *tcpStates[] = { L"CLOSED", L"LISTEN", L"SYN_SENT", L"SYN_RCVD", L"ESTAB", L"FIN_WAIT1", L"FIN_WAIT2", L"CLOSE_WAIT", L"CLOSING", L"LAST_ACK", L"TIME_WAIT", L"DELETE_TCB" };

@@ -94,7 +94,7 @@ void saveSettingsConnections(struct CONNECTION *connHead)
 	char buff[128];

 	int i = 0;

 	struct CONNECTION *tmp = connHead;

-	while (tmp != NULL) {

+	while (tmp != nullptr) {

 

 		mir_snprintf(buff, "%dFilterIntIp", i);

 		db_set_ws(NULL, PLUGINNAME, buff, tmp->strIntIp);

@@ -119,7 +119,7 @@ void saveSettingsConnections(struct CONNECTION *connHead)
 //load filters from db

 struct CONNECTION* LoadSettingsConnections()

 {

-	struct CONNECTION *connHead = NULL;

+	struct CONNECTION *connHead = nullptr;

 	DBVARIANT dbv;

 	char buff[128];

 	int i = 0;

@@ -251,12 +251,12 @@ static INT_PTR CALLBACK FilterEditProc(HWND hWnd, UINT message, WPARAM wParam, L
 				if (tmpPort[0] == '*')

 					connCurrentEditModal->intIntPort = -1;

 				else

-					connCurrentEditModal->intIntPort = GetDlgItemInt(hWnd, ID_TXT_LOCAL_PORT, NULL, FALSE);

+					connCurrentEditModal->intIntPort = GetDlgItemInt(hWnd, ID_TXT_LOCAL_PORT, nullptr, FALSE);

 				GetDlgItemText(hWnd, ID_TXT_REMOTE_PORT, tmpPort, _countof(tmpPort));

 				if (tmpPort[0] == '*')

 					connCurrentEditModal->intExtPort = -1;

 				else

-					connCurrentEditModal->intExtPort = GetDlgItemInt(hWnd, ID_TXT_REMOTE_PORT, NULL, FALSE);

+					connCurrentEditModal->intExtPort = GetDlgItemInt(hWnd, ID_TXT_REMOTE_PORT, nullptr, FALSE);

 

 				GetDlgItemText(hWnd, ID_TXT_LOCAL_IP, connCurrentEditModal->strIntIp, _countof(connCurrentEditModal->strIntIp));

 				GetDlgItemText(hWnd, ID_TXT_REMOTE_IP, connCurrentEditModal->strExtIp, _countof(connCurrentEditModal->strExtIp));

@@ -264,12 +264,12 @@ static INT_PTR CALLBACK FilterEditProc(HWND hWnd, UINT message, WPARAM wParam, L
 

 				connCurrentEditModal->Pid = !(BOOL)SendDlgItemMessage(hWnd, ID_CBO_ACTION, CB_GETCURSEL, 0, 0);

 

-				connCurrentEditModal = NULL;

+				connCurrentEditModal = nullptr;

 				EndDialog(hWnd, IDOK);

 				return TRUE;

 			}

 		case ID_CANCEL:

-			connCurrentEditModal = NULL;

+			connCurrentEditModal = nullptr;

 			EndDialog(hWnd, IDCANCEL);

 			return TRUE;

 		}

@@ -277,7 +277,7 @@ static INT_PTR CALLBACK FilterEditProc(HWND hWnd, UINT message, WPARAM wParam, L
 		break;

 	case WM_CLOSE:

 		{

-			connCurrentEditModal = NULL;

+			connCurrentEditModal = nullptr;

 			EndDialog(hWnd, IDCANCEL);

 			break;

 		}

@@ -374,8 +374,8 @@ INT_PTR CALLBACK DlgProcConnectionNotifyOpts(HWND hwndDlg, UINT msg, WPARAM wPar
 	case WM_COMMAND://user changed something, so get changes to variables

 		PostMessage(GetParent(hwndDlg), PSM_CHANGED, 0, 0);

 		switch (LOWORD(wParam)) {

-		case IDC_INTERVAL: settingInterval = GetDlgItemInt(hwndDlg, IDC_INTERVAL, NULL, FALSE); break;

-		case IDC_INTERVAL1: settingInterval1 = GetDlgItemInt(hwndDlg, IDC_INTERVAL1, NULL, TRUE); break;

+		case IDC_INTERVAL: settingInterval = GetDlgItemInt(hwndDlg, IDC_INTERVAL, nullptr, FALSE); break;

+		case IDC_INTERVAL1: settingInterval1 = GetDlgItemInt(hwndDlg, IDC_INTERVAL1, nullptr, TRUE); break;

 		case IDC_RESOLVEIP: settingResolveIp = (BYTE)IsDlgButtonChecked(hwndDlg, IDC_RESOLVEIP); break;

 		case ID_CHK_DEFAULTACTION: settingDefaultAction = (BYTE)IsDlgButtonChecked(hwndDlg, ID_CHK_DEFAULTACTION); break;

 		case ID_ADD:

@@ -391,7 +391,7 @@ INT_PTR CALLBACK DlgProcConnectionNotifyOpts(HWND hwndDlg, UINT msg, WPARAM wPar
 

 				if (DialogBoxParam(hInst, MAKEINTRESOURCE(IDD_FILTER_DIALOG), hwndDlg, FilterEditProc, (LPARAM)cur) == IDCANCEL) {

 					mir_free(cur);

-					cur = NULL;

+					cur = nullptr;

 				}

 				else {

 					cur->next = connExceptionsTmp;

@@ -407,7 +407,7 @@ INT_PTR CALLBACK DlgProcConnectionNotifyOpts(HWND hwndDlg, UINT msg, WPARAM wPar
 		case ID_DELETE:

 			{

 				int pos, pos1;

-				struct CONNECTION *cur = connExceptionsTmp, *pre = NULL;

+				struct CONNECTION *cur = connExceptionsTmp, *pre = nullptr;

 

 				pos = (int)ListView_GetNextItem(GetDlgItem(hwndDlg, IDC_LIST_EXCEPTIONS), -1, LVNI_FOCUSED);

 				if (pos == -1)break;

@@ -416,7 +416,7 @@ INT_PTR CALLBACK DlgProcConnectionNotifyOpts(HWND hwndDlg, UINT msg, WPARAM wPar
 					pre = cur;

 					cur = cur->next;

 				}

-				if (pre == NULL)

+				if (pre == nullptr)

 					connExceptionsTmp = connExceptionsTmp->next;

 				else

 					(pre)->next = cur->next;

@@ -429,7 +429,7 @@ INT_PTR CALLBACK DlgProcConnectionNotifyOpts(HWND hwndDlg, UINT msg, WPARAM wPar
 		case ID_UP:

 			{

 				int pos, pos1;

-				struct CONNECTION *cur = NULL, *pre = NULL, *prepre = NULL;

+				struct CONNECTION *cur = nullptr, *pre = nullptr, *prepre = nullptr;

 

 				cur = connExceptionsTmp;

 

@@ -441,12 +441,12 @@ INT_PTR CALLBACK DlgProcConnectionNotifyOpts(HWND hwndDlg, UINT msg, WPARAM wPar
 					pre = cur;

 					cur = cur->next;

 				}

-				if (prepre != NULL) {

+				if (prepre != nullptr) {

 					pre->next = cur->next;

 					cur->next = pre;

 					prepre->next = cur;

 				}

-				else if (pre != NULL) {

+				else if (pre != nullptr) {

 					pre->next = cur->next;

 					cur->next = pre;

 					connExceptionsTmp = cur;

@@ -459,7 +459,7 @@ INT_PTR CALLBACK DlgProcConnectionNotifyOpts(HWND hwndDlg, UINT msg, WPARAM wPar
 		case ID_DOWN:

 			{

 				int pos, pos1;

-				struct CONNECTION *cur = NULL, *pre = NULL;

+				struct CONNECTION *cur = nullptr, *pre = nullptr;

 

 				cur = connExceptionsTmp;

 

@@ -470,12 +470,12 @@ INT_PTR CALLBACK DlgProcConnectionNotifyOpts(HWND hwndDlg, UINT msg, WPARAM wPar
 					pre = cur;

 					cur = cur->next;

 				}

-				if (cur == connExceptionsTmp&&cur->next != NULL) {

+				if (cur == connExceptionsTmp&&cur->next != nullptr) {

 					connExceptionsTmp = cur->next;

 					cur->next = cur->next->next;

 					connExceptionsTmp->next = cur;

 				}

-				else if (cur->next != NULL) {

+				else if (cur->next != nullptr) {

 					struct CONNECTION *tmp = cur->next->next;

 					pre->next = cur->next;

 					cur->next->next = cur;

@@ -543,7 +543,7 @@ INT_PTR CALLBACK DlgProcConnectionNotifyOpts(HWND hwndDlg, UINT msg, WPARAM wPar
 			case NM_DBLCLK:

 				{

 					int pos, pos1;

-					struct CONNECTION *cur = NULL;

+					struct CONNECTION *cur = nullptr;

 

 					cur = connExceptionsTmp;

 

@@ -576,7 +576,7 @@ INT_PTR CALLBACK DlgProcConnectionNotifyOpts(HWND hwndDlg, UINT msg, WPARAM wPar
 	case WM_DESTROY:

 		bOptionsOpen = FALSE;

 		deleteConnectionsTable(connExceptionsTmp);

-		connExceptionsTmp = NULL;

+		connExceptionsTmp = nullptr;

 		return TRUE;

 	}

 	return 0;

@@ -585,7 +585,7 @@ INT_PTR CALLBACK DlgProcConnectionNotifyOpts(HWND hwndDlg, UINT msg, WPARAM wPar
 //options page on miranda called

 int ConnectionNotifyOptInit(WPARAM wParam, LPARAM)

 {

-	OPTIONSDIALOGPAGE odp = { 0 };

+	OPTIONSDIALOGPAGE odp = {};

 	odp.hInstance = hInst;

 	odp.pszTemplate = MAKEINTRESOURCEA(IDD_OPT_DIALOG);

 	odp.szTitle.w = _A2W(PLUGINNAME);

@@ -644,7 +644,7 @@ INT_PTR SetStatus(WPARAM wParam, LPARAM lParam)
 		diffstat = 0;

 		ResetEvent(killCheckThreadEvent);

 		if (!hConnectionCheckThread)

-			hConnectionCheckThread = (HANDLE)mir_forkthreadex(checkthread, 0, (unsigned int*)&ConnectionCheckThreadId);

+			hConnectionCheckThread = (HANDLE)mir_forkthreadex(checkthread, nullptr, (unsigned int*)&ConnectionCheckThreadId);

 	}

 	else {

 		int retv = 0;

@@ -684,19 +684,19 @@ static unsigned __stdcall checkthread(void *)
 	_OutputDebugString(L"check thread started");

 	#endif

 	while (1) {

-		struct CONNECTION* conn = NULL, *connOld = first, *cur = NULL;

+		struct CONNECTION* conn = nullptr, *connOld = first, *cur = nullptr;

 		#ifdef _DEBUG

 		_OutputDebugString(L"checking connections table...");

 		#endif

 		if (WAIT_OBJECT_0 == WaitForSingleObject(killCheckThreadEvent, 100)) {

-			hConnectionCheckThread = NULL;

+			hConnectionCheckThread = nullptr;

 			return 0;

 		}

 

 		conn = GetConnectionsTable();

 		cur = conn;

-		while (cur != NULL) {

-			if (searchConnection(first, cur->strIntIp, cur->strExtIp, cur->intIntPort, cur->intExtPort, cur->state) == NULL && (settingStatusMask & (1 << (cur->state - 1)))) {

+		while (cur != nullptr) {

+			if (searchConnection(first, cur->strIntIp, cur->strExtIp, cur->intIntPort, cur->intExtPort, cur->state) == nullptr && (settingStatusMask & (1 << (cur->state - 1)))) {

 

 				#ifdef _DEBUG

 				wchar_t msg[1024];

@@ -719,7 +719,7 @@ static unsigned __stdcall checkthread(void *)
 		deleteConnectionsTable(connOld);

 		Sleep(settingInterval);

 	}

-	hConnectionCheckThread = NULL;

+	hConnectionCheckThread = nullptr;

 	return 1;

 }

 

@@ -821,7 +821,7 @@ static int modulesloaded(WPARAM, LPARAM)
 	//#ifdef _DEBUG

 	//	_OutputDebugString("started check thread %d",hConnectionCheckThread);

 	//#endif

-	killCheckThreadEvent = CreateEvent(NULL, FALSE, FALSE, L"killCheckThreadEvent");

+	killCheckThreadEvent = CreateEvent(nullptr, FALSE, FALSE, L"killCheckThreadEvent");

 	hFilterOptionsThread = startFilterThread();

 	//updaterRegister();

 

@@ -855,7 +855,7 @@ extern "C" int __declspec(dllexport) Load(void)
 	mir_getLP(&pluginInfo);

 	pcli = Clist_GetInterface();

 

-	hExceptionsMutex = CreateMutex(NULL, FALSE, L"ExceptionsMutex");

+	hExceptionsMutex = CreateMutex(nullptr, FALSE, L"ExceptionsMutex");

 

 	LoadSettings();

 	connExceptions = LoadSettingsConnections();

diff --git a/plugins/ConnectionNotify/src/filter.cpp b/plugins/ConnectionNotify/src/filter.cpp
index db9b205e0f..5d3d778517 100644
--- a/plugins/ConnectionNotify/src/filter.cpp
+++ b/plugins/ConnectionNotify/src/filter.cpp
@@ -1,6 +1,6 @@
 #include "stdafx.h"

 

-HWND filterAddDlg = NULL;

+HWND filterAddDlg = nullptr;

 extern HINSTANCE hInst;

 extern struct CONNECTION *connExceptions;

 extern HANDLE hFilterOptionsThread;

@@ -14,7 +14,7 @@ static INT_PTR CALLBACK ConnectionFilterEditProc(HWND hWnd, UINT message, WPARAM
 

 HANDLE startFilterThread()

 {

-	return (HANDLE)mir_forkthreadex(filterQueue, 0, (unsigned int*)&FilterOptionsThreadId);

+	return (HANDLE)mir_forkthreadex(filterQueue, nullptr, (unsigned int*)&FilterOptionsThreadId);

 }

 

 static unsigned __stdcall filterQueue(void *)

@@ -22,21 +22,21 @@ static unsigned __stdcall filterQueue(void *)
 	BOOL bRet;

 	MSG msg;

 	//while(1)

-	while ((bRet = GetMessage(&msg, NULL, 0, 0)) != 0)

+	while ((bRet = GetMessage(&msg, nullptr, 0, 0)) != 0)

 	{

 		if (msg.message == WM_ADD_FILTER)

 		{

 			struct CONNECTION *conn = (struct CONNECTION *)msg.lParam;

-			filterAddDlg = CreateDialogParam(hInst, MAKEINTRESOURCE(IDD_FILTER_DIALOG), NULL, ConnectionFilterEditProc, (LPARAM)conn);

+			filterAddDlg = CreateDialogParam(hInst, MAKEINTRESOURCE(IDD_FILTER_DIALOG), nullptr, ConnectionFilterEditProc, (LPARAM)conn);

 			ShowWindow(filterAddDlg, SW_SHOW);

 

 		}

-		if (NULL == filterAddDlg || !IsDialogMessage(filterAddDlg, &msg)) { /* Wine fix. */

+		if (nullptr == filterAddDlg || !IsDialogMessage(filterAddDlg, &msg)) { /* Wine fix. */

 			TranslateMessage(&msg);

 			DispatchMessage(&msg);

 		}

 	}

-	hFilterOptionsThread = NULL;

+	hFilterOptionsThread = nullptr;

 	return TRUE;

 }

 

@@ -62,7 +62,7 @@ static INT_PTR CALLBACK ConnectionFilterEditProc(HWND hWnd, UINT message, WPARAM
 	}

 	case WM_ACTIVATE:

 		if (0 == wParam)             // becoming inactive

-			filterAddDlg = NULL;

+			filterAddDlg = nullptr;

 		else                         // becoming active

 			filterAddDlg = hWnd;

 		return FALSE;

@@ -79,7 +79,7 @@ static INT_PTR CALLBACK ConnectionFilterEditProc(HWND hWnd, UINT message, WPARAM
 			}

 			if (WAIT_OBJECT_0 == WaitForSingleObject(hExceptionsMutex, 100))

 			{

-				if (connCurrentEdit == NULL)

+				if (connCurrentEdit == nullptr)

 				{

 					connCurrentEdit = (struct CONNECTION*)mir_alloc(sizeof(struct CONNECTION));

 					connCurrentEdit->next = connExceptions;

@@ -89,19 +89,19 @@ static INT_PTR CALLBACK ConnectionFilterEditProc(HWND hWnd, UINT message, WPARAM
 				if (tmpPort[0] == '*')

 					connCurrentEdit->intIntPort = -1;

 				else

-					connCurrentEdit->intIntPort = GetDlgItemInt(hWnd, ID_TXT_LOCAL_PORT, NULL, FALSE);

+					connCurrentEdit->intIntPort = GetDlgItemInt(hWnd, ID_TXT_LOCAL_PORT, nullptr, FALSE);

 				GetDlgItemText(hWnd, ID_TXT_REMOTE_PORT, tmpPort, _countof(tmpPort));

 				if (tmpPort[0] == '*')

 					connCurrentEdit->intExtPort = -1;

 				else

-					connCurrentEdit->intExtPort = GetDlgItemInt(hWnd, ID_TXT_REMOTE_PORT, NULL, FALSE);

+					connCurrentEdit->intExtPort = GetDlgItemInt(hWnd, ID_TXT_REMOTE_PORT, nullptr, FALSE);

 

 				GetDlgItemText(hWnd, ID_TXT_LOCAL_IP, connCurrentEdit->strIntIp, _countof(connCurrentEdit->strIntIp));

 				GetDlgItemText(hWnd, ID_TXT_REMOTE_IP, connCurrentEdit->strExtIp, _countof(connCurrentEdit->strExtIp));

 				GetDlgItemText(hWnd, ID_TEXT_NAME, connCurrentEdit->PName, _countof(connCurrentEdit->PName));

 

 				connCurrentEdit->Pid = !(BOOL)SendDlgItemMessage(hWnd, ID_CBO_ACTION, CB_GETCURSEL, 0, 0);

-				connCurrentEdit = NULL;

+				connCurrentEdit = nullptr;

 				saveSettingsConnections(connExceptions);

 				ReleaseMutex(hExceptionsMutex);

 			}

@@ -110,7 +110,7 @@ static INT_PTR CALLBACK ConnectionFilterEditProc(HWND hWnd, UINT message, WPARAM
 			return TRUE;

 		}

 		case ID_CANCEL:

-			connCurrentEdit = NULL;

+			connCurrentEdit = nullptr;

 			DestroyWindow(hWnd);

 			//EndDialog(hWnd,IDCANCEL);

 			return TRUE;

@@ -121,8 +121,8 @@ static INT_PTR CALLBACK ConnectionFilterEditProc(HWND hWnd, UINT message, WPARAM
 	case WM_CLOSE:

 		DestroyWindow(hWnd);

 	case WM_DESTROY:

-		filterAddDlg = NULL;

-		connCurrentEdit = NULL;

+		filterAddDlg = nullptr;

+		connCurrentEdit = nullptr;

 		//DestroyWindow(hWnd);

 		//PostQuitMessage(0);

 		break;

@@ -132,7 +132,7 @@ static INT_PTR CALLBACK ConnectionFilterEditProc(HWND hWnd, UINT message, WPARAM
 

 BOOL checkFilter(struct CONNECTION *head, struct CONNECTION *conn)

 {

-	for (struct CONNECTION *cur = head; cur != NULL; cur = cur->next)

+	for (struct CONNECTION *cur = head; cur != nullptr; cur = cur->next)

 		if (wildcmpw(conn->PName, cur->PName) && wildcmpw(conn->strIntIp, cur->strIntIp) && wildcmpw(conn->strExtIp, cur->strExtIp)

 			&& (cur->intIntPort == -1 || cur->intIntPort == conn->intIntPort) && (cur->intExtPort == -1 || cur->intExtPort == conn->intExtPort))

 			return cur->Pid;

diff --git a/plugins/ConnectionNotify/src/netstat.cpp b/plugins/ConnectionNotify/src/netstat.cpp
index 663e22a16e..93d906cc4f 100644
--- a/plugins/ConnectionNotify/src/netstat.cpp
+++ b/plugins/ConnectionNotify/src/netstat.cpp
@@ -4,9 +4,9 @@ struct CONNECTION *GetConnectionsTable()
 {
 	// Declare and initialize variables
 	MIB_TCPTABLE_OWNER_PID *pTcpTable = (MIB_TCPTABLE_OWNER_PID *)MALLOC(sizeof(MIB_TCPTABLE_OWNER_PID));
-	if (pTcpTable == NULL) {
+	if (pTcpTable == nullptr) {
 		//printf("Error allocating memory!\n");
-		return NULL;
+		return nullptr;
 	}
 
 	DWORD dwSize = sizeof(MIB_TCPTABLE_OWNER_PID);
@@ -16,9 +16,9 @@ struct CONNECTION *GetConnectionsTable()
 	if (dwRetVal == ERROR_INSUFFICIENT_BUFFER) {
 		FREE(pTcpTable);
 		pTcpTable = (MIB_TCPTABLE_OWNER_PID *)MALLOC(dwSize);
-		if (pTcpTable == NULL) {
+		if (pTcpTable == nullptr) {
 			//printf("Error allocating memory\n");
-			return NULL;
+			return nullptr;
 		}
 	}
 
@@ -27,12 +27,12 @@ struct CONNECTION *GetConnectionsTable()
 	if ((dwRetVal = GetExtendedTcpTable(pTcpTable, &dwSize, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) != NO_ERROR) {
 		//printf("\tGetTcpTable() failed with return value %d\n", dwRetVal);
 		FREE(pTcpTable);
-		return NULL;
+		return nullptr;
 	}
 	//printf("\tLocal Addr\tLocal Port\tRemote Addr\tRemote Port\n");
 	//printf("Number of entries: %d\n", (int) pTcpTable->dwNumEntries);
 	struct in_addr IpAddr;
-	struct CONNECTION *connHead = NULL;
+	struct CONNECTION *connHead = nullptr;
 	for (DWORD i = 0; i < pTcpTable->dwNumEntries; i++) {
 		struct CONNECTION *newConn = (struct CONNECTION*)mir_alloc(sizeof(struct CONNECTION));
 		memset(newConn, 0, sizeof(struct CONNECTION));
@@ -114,18 +114,18 @@ void deleteConnectionsTable(struct CONNECTION *head)
 {
 	struct CONNECTION *cur = head, *del;
 
-	while (cur != NULL) {
+	while (cur != nullptr) {
 		del = cur;
 		cur = cur->next;
 		mir_free(del);
 		head = cur;
 	}
-	head = NULL;
+	head = nullptr;
 }
 
 struct CONNECTION *searchConnection(struct CONNECTION *head, wchar_t *intIp, wchar_t *extIp, int intPort, int extPort, int state)
 {
-	for (struct CONNECTION *cur = head; cur != NULL; cur = cur->next) {
+	for (struct CONNECTION *cur = head; cur != nullptr; cur = cur->next) {
 		if (mir_wstrcmp(cur->strIntIp, intIp) == 0 &&
 			mir_wstrcmp(cur->strExtIp, extIp) == 0 &&
 			cur->intExtPort == extPort &&
@@ -133,7 +133,7 @@ struct CONNECTION *searchConnection(struct CONNECTION *head, wchar_t *intIp, wch
 			cur->state == state)
 			return cur;
 	}
-	return NULL;
+	return nullptr;
 }
 
 void getDnsName(wchar_t *strIp, wchar_t *strHostName, size_t len)
@@ -144,5 +144,5 @@ void getDnsName(wchar_t *strIp, wchar_t *strHostName, size_t len)
 	iaHost.s_addr = inet_addr(szStrIP);
 	mir_free(szStrIP);
 	hostent *h = gethostbyaddr((char *)&iaHost, sizeof(struct in_addr), AF_INET);
-	wcsncpy_s(strHostName, len, (h == NULL) ? strIp : _A2T(h->h_name), _TRUNCATE);
+	wcsncpy_s(strHostName, len, (h == nullptr) ? strIp : _A2T(h->h_name), _TRUNCATE);
 }