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Fix a menu recursion issue (#471)

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* Factorize menu close logic in show_menu()

* Use CS-specific player's m_iMenu offset instead of menuselect command
This commit is contained in:
Vincent Herbet
2018-07-10 12:09:20 +02:00
committed by GitHub
parent 528fec1a29
commit 387dc6a188
3 changed files with 52 additions and 37 deletions
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65
amxmodx/amxmodx.cpp
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@ -1246,31 +1246,48 @@ static cell AMX_NATIVE_CALL get_user_team(AMX *amx, cell *params) /* 3 param */
static cell AMX_NATIVE_CALL show_menu(AMX *amx, cell *params) /* 3 param */
{
auto closeMenu = [amx](int index) -> int
{
auto pPlayer = GET_PLAYER_POINTER_I(index);
if (!pPlayer->ingame)
{
return 1;
}
pPlayer->keys = 0;
pPlayer->menu = 0;
// Fire newmenu callback so closing it can be handled by the plugin
if (!CloseNewMenus(pPlayer))
{
LogError(amx, AMX_ERR_NATIVE, "Plugin called menu_display when item=MENU_EXIT");
return 2;
}
if (g_bmod_cstrike)
{
GET_OFFSET("CBasePlayer", m_iMenu);
set_pdata<int>(pPlayer->pEdict, m_iMenu, 0);
}
return 0;
};
int index = params[1];
// If show_menu is called from within a newmenu callback upon receiving MENU_EXIT
// it is possible for this native to recurse. We need to close newmenus right away
// because the recursive call would otherwise modify/corrupt the static get_amxstring
// buffer mid execution. This will either display incorrect text or result in UTIL_ShowMenu
// running into an infinite loop.
int index = params[1];
if (index == 0)
{
for (int i = 1; i <= gpGlobals->maxClients; ++i)
{
CPlayer* pPlayer = GET_PLAYER_POINTER_I(i);
if (pPlayer->ingame)
if (closeMenu(i) == 2)
{
pPlayer->keys = 0;
pPlayer->menu = 0;
// Fire newmenu callback so closing it can be handled by the plugin
if (!CloseNewMenus(pPlayer))
{
LogError(amx, AMX_ERR_NATIVE, "Plugin called menu_display when item=MENU_EXIT");
return 0;
}
UTIL_FakeClientCommand(pPlayer->pEdict, "menuselect", "10", 0);
return 0;
}
}
}
@ -1282,23 +1299,7 @@ static cell AMX_NATIVE_CALL show_menu(AMX *amx, cell *params) /* 3 param */
return 0;
}
CPlayer* pPlayer = GET_PLAYER_POINTER_I(index);
if (pPlayer->ingame)
{
pPlayer->keys = 0;
pPlayer->menu = 0;
// Fire newmenu callback so closing it can be handled by the plugin
if (!CloseNewMenus(pPlayer))
{
LogError(amx, AMX_ERR_NATIVE, "Plugin called menu_display when item=MENU_EXIT");
return 0;
}
UTIL_FakeClientCommand(pPlayer->pEdict, "menuselect", "10", 0);
}
else
if (closeMenu(index))
{
return 0;
}