From 4046248133fd72a43f6e9b501d5908d345116659 Mon Sep 17 00:00:00 2001
From: Pierre Pronchery <khorben@defora.org>
Date: Mon, 29 Jul 2024 19:33:12 +0200
Subject: [PATCH] camera: fix possible off-by-one with strncat()

---
 src/camera.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/camera.c b/src/camera.c
index 44c289a..e103c69 100644
--- a/src/camera.c
+++ b/src/camera.c
@@ -932,9 +932,9 @@ static void _properties_window(Camera * camera)
 	for(i = 0; capabilities[i].name != NULL; i++)
 		if(camera->cap.capabilities & capabilities[i].capability)
 		{
-			strncat(buf, sep, sizeof(buf) - strlen(buf));
+			strncat(buf, sep, sizeof(buf) - strlen(buf) - 1);
 			strncat(buf, capabilities[i].name, sizeof(buf)
-					- strlen(buf));
+					- strlen(buf) - 1);
 			sep = ", ";
 		}
 	buf[sizeof(buf) - 1] = '\0';