1 files changed, 17 insertions, 0 deletions
diff --git a/core.c b/core.c
index 7d2600b..91038fc 100644
--- a/core.c
+++ b/core.c
@@ -112,6 +112,19 @@ int file_open_fn( file_t *ft, const char *filename, int flags )
 	int ret = 0;
 	int fd;
 
+	//check if file is allready initialized or opened
+	if (ft->fd > 0)
+	{
+		printf("Trying to open file but file descriptor allready set\n");
+		return -1;
+	}
+
+	if (ft->filename != NULL)
+	{
+		printf("Trying open file, bus structure allready have filename\n");
+		return -1;
+	}
+
 	fd = fd_open( filename, flags );
 	if ( fd < 1 )
 	{
@@ -378,10 +391,14 @@ int file_close( file_t *ft )
 	{
 		printf("File name is empty\n");
 		return -1;
+	} else {
+		free(ft->filename);
+		ft->filename = NULL;
 	}
 	
 	fd_close( ft->fd );
 	memset( ft, 0, sizeof(file_t) );
+	ft->fd = -1;
 
 	return ret;
 }