From 97703839c970c295ba6173da463906bdec6d55cd Mon Sep 17 00:00:00 2001
From: divverent <divverent@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Tue, 6 Aug 2013 13:40:35 +0000
Subject: [PATCH] In prog reset functions, do not call functions unless
 prog->loaded.

This fixes segfaults in case progs loading itself may have caused Host_Error.

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@11995 d7cf8633-e32d-0410-b094-e92efae38249
---
 csprogs.c   | 11 +++++++----
 menu.c      |  4 ++--
 svvm_cmds.c |  3 ++-
 3 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/csprogs.c b/csprogs.c
index 36cecf83..fa5e690b 100644
--- a/csprogs.c
+++ b/csprogs.c
@@ -1160,10 +1160,13 @@ void CL_VM_ShutDown (void)
 	if(!cl.csqc_loaded)
 		return;
 	CSQC_BEGIN
-		PRVM_clientglobalfloat(time) = cl.time;
-		PRVM_clientglobaledict(self) = 0;
-		if (PRVM_clientfunction(CSQC_Shutdown))
-			prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Shutdown), "QC function CSQC_Shutdown is missing");
+		if (prog->loaded)
+		{
+			PRVM_clientglobalfloat(time) = cl.time;
+			PRVM_clientglobaledict(self) = 0;
+			if (PRVM_clientfunction(CSQC_Shutdown))
+				prog->ExecuteProgram(prog, PRVM_clientfunction(CSQC_Shutdown), "QC function CSQC_Shutdown is missing");
+		}
 		PRVM_Prog_Reset(prog);
 	CSQC_END
 	Con_DPrint("CSQC ^1unloaded\n");
diff --git a/menu.c b/menu.c
index 34a8de7f..d1311ca3 100644
--- a/menu.c
+++ b/menu.c
@@ -5333,8 +5333,8 @@ static void MP_NewMap(void)
 static void MP_Shutdown (void)
 {
 	prvm_prog_t *prog = MVM_prog;
-
-	prog->ExecuteProgram(prog, PRVM_menufunction(m_shutdown),"m_shutdown() required");
+	if (prog->loaded)
+		prog->ExecuteProgram(prog, PRVM_menufunction(m_shutdown),"m_shutdown() required");
 
 	// reset key_dest
 	key_dest = key_game;
diff --git a/svvm_cmds.c b/svvm_cmds.c
index e9d51fdf..c75dd077 100644
--- a/svvm_cmds.c
+++ b/svvm_cmds.c
@@ -3835,7 +3835,8 @@ void SVVM_init_cmd(prvm_prog_t *prog)
 void SVVM_reset_cmd(prvm_prog_t *prog)
 {
 	World_End(&sv.world);
-	if(PRVM_serverfunction(SV_Shutdown))
+
+	if(prog->loaded && PRVM_serverfunction(SV_Shutdown))
 	{
 		func_t s = PRVM_serverfunction(SV_Shutdown);
 		PRVM_serverglobalfloat(time) = sv.time;
-- 
2.39.2