From ad6bd0ecf7c9883d9881708a90319d87db4a41c9 Mon Sep 17 00:00:00 2001
From: Philipp Jungkamp <Philipp.Jungkamp@opal-rt.com>
Date: Fri, 25 Aug 2023 13:12:24 +0200
Subject: [PATCH] node-file: Don't truncate files

Signed-off-by: Philipp Jungkamp <Philipp.Jungkamp@opal-rt.com>
---
 lib/nodes/file.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/nodes/file.cpp b/lib/nodes/file.cpp
index c398c92db..631cd02f8 100644
--- a/lib/nodes/file.cpp
+++ b/lib/nodes/file.cpp
@@ -262,7 +262,7 @@ int villas::node::file_start(NodeCompat *n)
 	f->formatter->start(n->getInputSignals(false));
 
 	/* Open file */
-	f->stream_out = fopen(f->uri, "w+");
+	f->stream_out = fopen(f->uri, "a+");
 	if (!f->stream_out)
 		return -1;