From 64f6ddf1e2171dd7713f454c792916257e770f98 Mon Sep 17 00:00:00 2001 From: Howaner Date: Tue, 1 Jul 2014 14:47:49 +0200 Subject: [PATCH 1/2] Fix server-crash with non-existing items. --- src/Items/ItemHandler.cpp | 2 +- src/UI/Window.cpp | 8 +++++++- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/src/Items/ItemHandler.cpp b/src/Items/ItemHandler.cpp index a2fd4e3f8..0f56b2b90 100644 --- a/src/Items/ItemHandler.cpp +++ b/src/Items/ItemHandler.cpp @@ -63,7 +63,7 @@ cItemHandler * cItemHandler::m_ItemHandler[2268]; cItemHandler * cItemHandler::GetItemHandler(int a_ItemType) { - if (a_ItemType < 0) + if ((a_ItemType < 0) || (a_ItemType >= ARRAYCOUNT(m_ItemHandler)) || (!IsValidBlock(a_ItemType) && !IsValidItem(a_ItemType))) { // Either nothing (-1), or bad value, both cases should return the air handler if (a_ItemType < -1) diff --git a/src/UI/Window.cpp b/src/UI/Window.cpp index 98a9a0cec..af3e3e45c 100644 --- a/src/UI/Window.cpp +++ b/src/UI/Window.cpp @@ -170,7 +170,13 @@ void cWindow::Clicked( const cItem & a_ClickedItem ) { - cPluginManager * PlgMgr = cRoot::Get()->GetPluginManager(); + if (!IsValidItem(a_ClickedItem.m_ItemType) && !IsValidBlock(a_ClickedItem.m_ItemType)) + { + LOGWARNING("%s: Player \"%s\" clicked to a non-existing item; ignoring click.", __FUNCTION__, a_Player.GetName().c_str()); + return; + } + + cPluginManager * PlgMgr = cRoot::Get()->GetPluginManager(); if (a_WindowID != m_WindowID) { LOGWARNING("%s: Wrong window ID (exp %d, got %d) received from \"%s\"; ignoring click.", __FUNCTION__, m_WindowID, a_WindowID, a_Player.GetName().c_str()); From 64e66674355c84c091564197dcbdf26806e61659 Mon Sep 17 00:00:00 2001 From: Howaner Date: Tue, 1 Jul 2014 20:34:50 +0200 Subject: [PATCH 2/2] Only fixes the server crash. --- src/Items/ItemHandler.cpp | 2 +- src/UI/Window.cpp | 6 ------ 2 files changed, 1 insertion(+), 7 deletions(-) diff --git a/src/Items/ItemHandler.cpp b/src/Items/ItemHandler.cpp index 0f56b2b90..423039cf4 100644 --- a/src/Items/ItemHandler.cpp +++ b/src/Items/ItemHandler.cpp @@ -63,7 +63,7 @@ cItemHandler * cItemHandler::m_ItemHandler[2268]; cItemHandler * cItemHandler::GetItemHandler(int a_ItemType) { - if ((a_ItemType < 0) || (a_ItemType >= ARRAYCOUNT(m_ItemHandler)) || (!IsValidBlock(a_ItemType) && !IsValidItem(a_ItemType))) + if ((a_ItemType < 0) || ((unsigned long)a_ItemType >= ARRAYCOUNT(m_ItemHandler))) { // Either nothing (-1), or bad value, both cases should return the air handler if (a_ItemType < -1) diff --git a/src/UI/Window.cpp b/src/UI/Window.cpp index af3e3e45c..e465b701a 100644 --- a/src/UI/Window.cpp +++ b/src/UI/Window.cpp @@ -170,12 +170,6 @@ void cWindow::Clicked( const cItem & a_ClickedItem ) { - if (!IsValidItem(a_ClickedItem.m_ItemType) && !IsValidBlock(a_ClickedItem.m_ItemType)) - { - LOGWARNING("%s: Player \"%s\" clicked to a non-existing item; ignoring click.", __FUNCTION__, a_Player.GetName().c_str()); - return; - } - cPluginManager * PlgMgr = cRoot::Get()->GetPluginManager(); if (a_WindowID != m_WindowID) {