Based on e73c78c27511b03c7abc55aed87896092c0de699 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Fri, 24 Oct 2014 19:07:26 +0200
Subject: [PATCH] time: also support 'infinity' syntax in parse_nsec()

Let's make parse_usec() and parse_nsec() work similar
---
 src/shared/time-util.c |   14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

--- src/shared/time-util.c
+++ src/shared/time-util.c
@@ -773,7 +773,7 @@ int parse_nsec(const char *t, nsec_t *nsec) {
                 { "", 1ULL }, /* default is nsec */
         };
 
-        const char *p;
+        const char *p, *s;
         nsec_t r = 0;
         bool something = false;
 
@@ -781,6 +781,18 @@ int parse_nsec(const char *t, nsec_t *nsec) {
         assert(nsec);
 
         p = t;
+
+        p += strspn(p, WHITESPACE);
+        s = startswith(p, "infinity");
+        if (s) {
+                s += strspn(s, WHITESPACE);
+                if (!*s != 0)
+                        return -EINVAL;
+
+                *nsec = ((nsec_t) -1);
+                return 0;
+        }
+
         for (;;) {
                 long long l, z = 0;
                 char *e;
