Merge pull request #1196 from mfleisz/master

iOS: Fixed possible crash on disconnect

client/iOS/FreeRDP/ios_freerdp.m

@@ -221,7 +221,9 @@ ios_run_freerdp(freerdp * instance)
 
 		[pool release]; pool = nil;
 	}	
-	
+
+	CGContextRelease(mfi->bitmap_context);
+	mfi->bitmap_context = NULL;	
 	mfi->connection_state = TSXConnectionDisconnected;
 	
 	// Cleanup

client/iOS/Models/RDPSession.m

@@ -190,7 +190,7 @@ NSString* TSXSessionDidFailToConnectNotification = @"TSXSessionDidFailToConnect"
 
 - (CGContextRef)bitmapContext
 {
-	return [self mfi]->bitmap_context;
+    return [self mfi]->bitmap_context;
 }
 
 #pragma mark -

libfreerdp/crypto/der.c

@@ -27,9 +27,9 @@
 
 int _der_skip_length(int length)
 {
-	if (length > 0x81 && length <= 0x102)
+	if (length > 0x7F && length <= 0xFF)
 		return 2;
-	else if (length > 0x102)
+	else if (length > 0xFF)
 		return 3;
 	else
 		return 1;