From eeed514c75a76941fd9944d8458600a41508471f Mon Sep 17 00:00:00 2001
From: HanzZ <hanzz.k@gmail.com>
Date: Tue, 19 Feb 2013 07:06:52 +0100
Subject: [PATCH] Libtransport: Fix uint underflow when reporting average
 memory usage

---
 src/admininterface.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/admininterface.cpp b/src/admininterface.cpp
index d8591c18..d961a0a3 100644
--- a/src/admininterface.cpp
+++ b/src/admininterface.cpp
@@ -176,7 +176,9 @@ void AdminInterface::handleQuery(Swift::Message::ref message) {
 			unsigned long per_user = 0;
 			const std::list <NetworkPluginServer::Backend *> &backends = m_server->getBackends();
 			BOOST_FOREACH(NetworkPluginServer::Backend * backend, backends) {
-				per_user += (backend->res - backend->init_res);
+				if (backend->res >= backend->init_res) {
+					per_user += (backend->res - backend->init_res);
+				}
 			}
 
 			message->setBody(boost::lexical_cast<std::string>(per_user / m_userManager->getUserCount()));
@@ -220,7 +222,7 @@ void AdminInterface::handleQuery(Swift::Message::ref message) {
 		int id = 1;
 		const std::list <NetworkPluginServer::Backend *> &backends = m_server->getBackends();
 		BOOST_FOREACH(NetworkPluginServer::Backend * backend, backends) {
-			if (backend->users.size() == 0) {
+			if (backend->users.size() == 0 || backend->res < backend->init_res) {
 				lst += "Backend " + boost::lexical_cast<std::string>(id)  + " (ID=" + backend->id + "): 0\n";
 			}
 			else {