From ed8b7e8954d302f73907f1cc302d124443f947aa Mon Sep 17 00:00:00 2001
From: Laslo Hunhold <dev@frign.de>
Date: Mon, 5 Mar 2018 01:04:51 +0100
Subject: [PATCH] Fix a logic error

We want to xor s.host and udsname, so it especially errors out when none
are given.
---
 main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/main.c b/main.c
index 1c7d285..bce74a0 100644
--- a/main.c
+++ b/main.c
@@ -201,8 +201,8 @@ main(int argc, char *argv[])
 		usage();
 	}
 
-	/* allow either host or UNIX-domain socket, force port with host */
-	if ((s.host && udsname) || (s.host && !s.port)) {
+	/* allow host xor UNIX-domain socket, force port with host */
+	if ((!s.host == !udsname) || (s.host && !s.port)) {
 		usage();
 	}