From f030d36cd0a48856b6970541bd5baf74c2c06449 Mon Sep 17 00:00:00 2001
From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Mon, 26 Nov 2018 04:41:53 +0900
Subject: [PATCH] sysusers: use fgetgrent_sane()

---
 src/sysusers/sysusers.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/src/sysusers/sysusers.c b/src/sysusers/sysusers.c
index c2326ee9b8..3eb70f5e8f 100644
--- a/src/sysusers/sysusers.c
+++ b/src/sysusers/sysusers.c
@@ -140,8 +140,7 @@ static int load_group_database(void) {
         if (r < 0)
                 return r;
 
-        errno = 0;
-        while ((gr = fgetgrent(f))) {
+        while ((r = fgetgrent_sane(f, &gr)) > 0) {
                 char *n;
                 int k, q;
 
@@ -164,13 +163,8 @@ static int load_group_database(void) {
 
                 if (k <= 0 && q <= 0)
                         free(n);
-
-                errno = 0;
         }
-        if (!IN_SET(errno, 0, ENOENT))
-                return -errno;
-
-        return 0;
+        return r;
 }
 
 static int make_backup(const char *target, const char *x) {