From ce8a9ed94b7a3a4cbce04bee27bf8d4167ac6161 Mon Sep 17 00:00:00 2001
From: Ner'zhul <nerzhul@users.noreply.github.com>
Date: Sat, 11 Apr 2015 10:07:23 +0200
Subject: [PATCH] Fix a rare crash case un SendPlayerHP

If the player is disconnected while Lua API is doing a l_punch call, for example, the playersao is NULL and the server crash. Fix it.
---
 src/server.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/server.cpp b/src/server.cpp
index 6597ee64f..4d5938205 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -1802,7 +1802,11 @@ void Server::SendPlayerHP(u16 peer_id)
 {
 	DSTACK(__FUNCTION_NAME);
 	PlayerSAO *playersao = getPlayerSAO(peer_id);
-	assert(playersao);
+	// In some rare case, if the player is disconnected
+	// while Lua call l_punch, for example, this can be NULL
+	if (!playersao)
+		return;
+
 	SendHP(peer_id, playersao->getHP());
 	m_script->player_event(playersao,"health_changed");