Check if buffer is not empty

IB-8239

Signed-off-by: Raul Metsma <[email protected]>

Author: metsma

CMakeLists.txt

@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.16)
 if(NOT EXISTS ${CMAKE_SOURCE_DIR}/cmake/modules/VersionInfo.cmake)
     message(FATAL_ERROR "cmake submodule directory empty, did you 'git clone --recursive'?")
 endif()
-project(qdigidoc4 VERSION 4.6.0)
+project(qdigidoc4 VERSION 4.6.1)
 
 set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/modules)
 set(CMAKE_INCLUDE_CURRENT_DIR ON)

client/QCNG.cpp

@@ -209,7 +209,10 @@ QList<TokenData> QCNG::tokens() const
 				continue;
 
 			if(reader.isEmpty())
-				reader = QString::fromUtf16((const char16_t*)prop(key, NCRYPT_READER_PROPERTY).data());
+			{
+				if(QByteArray tmp = prop(key, NCRYPT_READER_PROPERTY); !tmp.isEmpty())
+					reader = QString::fromUtf16((const char16_t*)tmp.data());
+			}
 			QString guid = prop(h, NCRYPT_SMARTCARD_GUID_PROPERTY).trimmed();
 			TokenData &t = result.emplaceBack();
 			t.setReader(reader);