#!/bin/sh /usr/share/dpatch/dpatch-run

## fix-noepg patch - by Thomas Günther <tom@toms-cafe.de>
## http://toms-cafe.de/vdr/download/tvonscreen-0.7.0-fix-noepg.diff
##
## All lines beginning with `## DP:' are a description of the patch.
## DP: Fixes segmentation fault without any epg data.

@DPATCH@
--- tvonscreen-0.7.0/magazine.c
+++ tvonscreen-0.7.0/magazine.c
@@ -1484,9 +1484,9 @@
 	{
 		state = cOsdObject::ProcessKey(Key);
 	
-		if (state == osUnknown)
+		if (state == osUnknown && schedArrayNum>currentFirst)
 		{
-			if (curmode==SHOW && schedArrayNum>currentFirst)
+			if (curmode==SHOW)
 			{
 				switch (Key & ~k_Repeat)
 				{
@@ -1522,6 +1522,8 @@
 						currentFirst++;
 						if (currentFirst>schedArrayNum-3)
 							currentFirst=schedArrayNum-3;
+						if (currentFirst<0)
+							currentFirst=0;
 						output();
 						break;
 					case kUp:
@@ -1556,6 +1558,8 @@
 						currentFirst+=3;
 						if (currentFirst>schedArrayNum-3)
 							currentFirst=schedArrayNum-3;
+						if (currentFirst<0)
+							currentFirst=0;
 						output();
 						break;
 					case k8: // zum aktuellen Sender
@@ -1657,11 +1661,15 @@
 							EDIT_curChannel++;
 						if (EDIT_curChannel>schedArrayNum-1)
 							EDIT_curChannel=schedArrayNum-1;
+						if (EDIT_curChannel<0)
+							EDIT_curChannel=0;
 						if (EDIT_curChannel>currentFirst+2)
 						{
 							currentFirst++;
 							if (currentFirst>schedArrayNum-3)
 								currentFirst=schedArrayNum-3;
+							if (currentFirst<0)
+								currentFirst=0;
 							EDIT_curChannel=currentFirst+2;
 						}
 						outputLR();