From b06f0cc6258b7135182f3b29244a7df0ab203ab6 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Tue, 6 Nov 2018 12:06:45 +0100
Subject: [PATCH] parse-util: allow parse_boolean() to take a NULL argument

It's pretty useful to allow parse_boolean() to take a NULL argument and
return an error in that case, rather than abort. i.e. making this a
runtime rather than programming error allows us to shorten code
elsewhere.
---
 src/basic/parse-util.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/basic/parse-util.c b/src/basic/parse-util.c
index 718357e290..5b4e94c134 100644
--- a/src/basic/parse-util.c
+++ b/src/basic/parse-util.c
@@ -20,7 +20,8 @@
 #include "string-util.h"
 
 int parse_boolean(const char *v) {
-        assert(v);
+        if (!v)
+                return -EINVAL;
 
         if (streq(v, "1") || strcaseeq(v, "yes") || strcaseeq(v, "y") || strcaseeq(v, "true") || strcaseeq(v, "t") || strcaseeq(v, "on"))
                 return 1;