added user tag for reports, fixed couple of compile warnings in gcc

Telegram/SourceFiles/facades.cpp

@@ -215,6 +215,7 @@ struct SandboxDataStruct {
 	ConnectionProxy PreLaunchProxy;
 };
 SandboxDataStruct *SandboxData = 0;
+uint64 SandboxUserTag = 0;
 
 namespace Sandbox {
 
@@ -276,6 +277,27 @@ namespace Sandbox {
 				f.write("1");
 			}
 		}
+
+		srand((int32)time(NULL));
+
+		SandboxUserTag = 0;
+		QFile usertag(cWorkingDir() + qsl("tdata/usertag"));
+		if (usertag.open(QIODevice::ReadOnly)) {
+			if (usertag.read(reinterpret_cast<char*>(&SandboxUserTag), sizeof(uint64)) != sizeof(uint64)) {
+				SandboxUserTag = 0;
+			}
+			usertag.close();
+		}
+		if (!SandboxUserTag) {
+			do {
+				memsetrnd_bad(SandboxUserTag);
+			} while (!SandboxUserTag);
+
+			if (usertag.open(QIODevice::WriteOnly)) {
+				usertag.write(reinterpret_cast<char*>(&SandboxUserTag), sizeof(uint64));
+				usertag.close();
+			}
+		}
 	}
 
 	void start() {
@@ -290,8 +312,6 @@ namespace Sandbox {
 				break;
 			}
 		}
-
-		srand((int32)time(NULL));
 	}
 
 	void finish() {
@@ -299,6 +319,10 @@ namespace Sandbox {
 		SandboxData = 0;
 	}
 
+	uint64 UserTag() {
+		return SandboxUserTag;
+	}
+
 	DefineReadOnlyVar(Sandbox, QString, LangSystemISO);
 	DefineReadOnlyVar(Sandbox, int32, LangSystem);
 	DefineVar(Sandbox, QByteArray, LastCrashDump);