From 5d5aeddabfe0b6b21f556c72a71e0454833d63e5 Mon Sep 17 00:00:00 2001
From: Magnus Hagander <magnus@hagander.net>
Date: Mon, 9 Apr 2018 21:33:33 +0200
Subject: [PATCH] Make sure pg_rewind can't run as root

Previously a warning was printed, but the tool actually kept running
even when running as root. This is something we definitely want to
prevent, but since this means a behavior change, not backpatching.

Author: Michael Paquier
---
 src/bin/pg_rewind/pg_rewind.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/bin/pg_rewind/pg_rewind.c b/src/bin/pg_rewind/pg_rewind.c
index b9ea6a4c21..a1ab13963a 100644
--- a/src/bin/pg_rewind/pg_rewind.c
+++ b/src/bin/pg_rewind/pg_rewind.c
@@ -208,6 +208,7 @@ main(int argc, char **argv)
 		fprintf(stderr, _("cannot be executed by \"root\"\n"));
 		fprintf(stderr, _("You must run %s as the PostgreSQL superuser.\n"),
 				progname);
+		exit(1);
 	}
 #endif