File _service:tar_scm:backport-sysusers-add-fsync-fo... of Package systemd

File _service:tar_scm:backport-sysusers-add-fsync-for-passwd-24324.patch of Package systemd (Revision e231d000eb6f8fe451999f66cf42d78d)

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From 3982142116871b3eead4d5833d898f077e7942d4 Mon Sep 17 00:00:00 2001
From: Avram Lubkin <avylove@rockhopper.net>
Date: Tue, 16 Aug 2022 08:51:21 -0400
Subject: [PATCH] sysusers: add fsync for passwd (#24324)

https://github.com/systemd/systemd/pull/6636 added `fsync()` when
temporary shadow, group, and gshadow files are created, but it was
not added for passwd. As far as I can tell, this seems to have been
an oversight. I'm seeing real world issues where a blank /etc/passwd
file is being created if a machine loses power early in the boot process.

(cherry picked from commit 19193b489841a7bcccda7122ac0849cf6efe59fd)
(cherry picked from commit 9f2f3911539c453037aecd51f875dfd75ed04113)
(cherry picked from commit 7ca021b87e92a4e775af22c04a2ab2bf404ae313)

Conflict:NA
Reference:https://github.com/systemd/systemd/commit/3982142116871b3eead4d5833d898f077e7942d4
---
 src/sysusers/sysusers.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sysusers/sysusers.c b/src/sysusers/sysusers.c
index 669efe4a1d..055eb6775e 100644
--- a/src/sysusers/sysusers.c
+++ b/src/sysusers/sysusers.c
@@ -487,7 +487,7 @@ static int write_temporary_passwd(const char *passwd_path, FILE **tmpfile, char
                         break;
         }
 
-        r = fflush_and_check(passwd);
+        r = fflush_sync_and_check(passwd);
         if (r < 0)
                 return log_debug_errno(r, "Failed to flush %s: %m", passwd_tmp);
 
-- 
2.27.0