From cfa3041c4d401888da4804dc2976a9c6043f86c5 Mon Sep 17 00:00:00 2001
From: Don HO <don.h@free.fr>
Date: Tue, 18 Feb 2020 05:14:21 +0100
Subject: [PATCH] Enhancement of preventing from null pointer exception of
 localtime

Fix #7952
---
 PowerEditor/src/NppIO.cpp                    | 15 +++++++++------
 PowerEditor/src/Parameters.cpp               | 20 ++++++++++++--------
 PowerEditor/src/ScitillaComponent/Buffer.cpp |  3 +++
 3 files changed, 24 insertions(+), 14 deletions(-)

diff --git a/PowerEditor/src/NppIO.cpp b/PowerEditor/src/NppIO.cpp
index 4b9fa6f86..504b38371 100644
--- a/PowerEditor/src/NppIO.cpp
+++ b/PowerEditor/src/NppIO.cpp
@@ -1481,15 +1481,18 @@ bool Notepad_plus::fileSave(BufferID id)
 				struct tm *today;
 
 				today = localtime(&ltime);
-				generic_strftime(tmpbuf, temBufLen, TEXT("%Y-%m-%d_%H%M%S"), today);
+				if (today)
+				{
+					generic_strftime(tmpbuf, temBufLen, TEXT("%Y-%m-%d_%H%M%S"), today);
 
-				fn_bak += name;
-				fn_bak += TEXT(".");
-				fn_bak += tmpbuf;
-				fn_bak += TEXT(".bak");
+					fn_bak += name;
+					fn_bak += TEXT(".");
+					fn_bak += tmpbuf;
+					fn_bak += TEXT(".bak");
+				}
 			}
 
-			if (not ::CopyFile(fn, fn_bak.c_str(), FALSE))
+			if (!::CopyFile(fn, fn_bak.c_str(), FALSE))
 			{
 				int res = _nativeLangSpeaker.messageBox("FileBackupFailed",
 					_pPublicInterface->getHSelf(),
diff --git a/PowerEditor/src/Parameters.cpp b/PowerEditor/src/Parameters.cpp
index d98b43cba..6859235c0 100644
--- a/PowerEditor/src/Parameters.cpp
+++ b/PowerEditor/src/Parameters.cpp
@@ -6950,10 +6950,12 @@ Date::Date(int nbDaysFromNow)
 	rawtime += (nbDaysFromNow * oneDay);
 
 	timeinfo = localtime(&rawtime);
-
-	_year = timeinfo->tm_year + 1900;
-	_month = timeinfo->tm_mon + 1;
-	_day = timeinfo->tm_mday;
+	if (timeinfo)
+	{
+		_year = timeinfo->tm_year + 1900;
+		_month = timeinfo->tm_mon + 1;
+		_day = timeinfo->tm_mday;
+	}
 }
 
 void Date::now()
@@ -6963,10 +6965,12 @@ void Date::now()
 
 	time(&rawtime);
 	timeinfo = localtime(&rawtime);
-
-	_year = timeinfo->tm_year + 1900;
-	_month = timeinfo->tm_mon + 1;
-	_day = timeinfo->tm_mday;
+	if (timeinfo)
+	{
+		_year = timeinfo->tm_year + 1900;
+		_month = timeinfo->tm_mon + 1;
+		_day = timeinfo->tm_mday;
+	}
 }
 
 
diff --git a/PowerEditor/src/ScitillaComponent/Buffer.cpp b/PowerEditor/src/ScitillaComponent/Buffer.cpp
index 59869b941..9ad70aafa 100644
--- a/PowerEditor/src/ScitillaComponent/Buffer.cpp
+++ b/PowerEditor/src/ScitillaComponent/Buffer.cpp
@@ -849,6 +849,9 @@ bool FileManager::backupCurrentBuffer()
 				TCHAR tmpbuf[temBufLen];
 				time_t ltime = time(0);
 				struct tm* today = localtime(&ltime);
+				if (!today)
+					return false;
+
 				generic_strftime(tmpbuf, temBufLen, TEXT("%Y-%m-%d_%H%M%S"), today);
 
 				backupFilePath += TEXT("@");