From 87410f166eb5e0f06703bd82fdec2fb47afb58ef Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 25 Jul 2016 20:35:04 +0200
Subject: [PATCH] fileio: imply /tmp as directory if passed as NULL to
 open_tmpfile_unlinkable()

We can make this smarter one day, to honour $TMPDIR and friends, but for now,
let's just use /tmp.
---
 src/basic/fileio.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/basic/fileio.c b/src/basic/fileio.c
index 47ccfc39d8..f183de4999 100644
--- a/src/basic/fileio.c
+++ b/src/basic/fileio.c
@@ -1259,7 +1259,8 @@ int open_tmpfile_unlinkable(const char *directory, int flags) {
         char *p;
         int fd;
 
-        assert(directory);
+        if (!directory)
+                directory = "/tmp";
 
         /* Returns an unlinked temporary file that cannot be linked into the file system anymore */