gcc: ensure buffer ends with 0

diff --git a/lib/commands/toolcontext.c b/lib/commands/toolcontext.c
index 92008a641bc79028b17a2111e5c5f14e7499ea85..75634caff34f90ab838b5c64d67d42e3c9b87e82 100644 (file)
--- a/lib/commands/toolcontext.c
+++ b/lib/commands/toolcontext.c
@@ -230,7 +230,7 @@ static void _get_sysfs_dir(struct cmd_context *cmd, char *buf, size_t buf_size)
                return;
        }
 
-       strncpy(buf, sys_mnt, buf_size);
+       (void) dm_strncpy(buf, sys_mnt, buf_size);
 }
 
 static uint32_t _parse_debug_fields(struct cmd_context *cmd, int cfg, const char *cfgname)