gentoo-overlay/app-admin/rsyslog/files/8-stable/rsyslog-8.27.0-fix-hostname-detection-when-getaddrinfo-fails.patch

From 1a7d3a088969b47798bc1da712ca2772f91a7c02 Mon Sep 17 00:00:00 2001
From: Jiri Vymazal <jvymazal@redhat.com>
Date: Wed, 31 May 2017 16:26:56 +0200
Subject: [PATCH] Ignoring NONAME error from getaddrinfo so we have hostname
 set even without working network

---
 runtime/net.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/runtime/net.c b/runtime/net.c
index 2d8de9429..edffc677a 100644
--- a/runtime/net.c
+++ b/runtime/net.c
@@ -1188,7 +1188,11 @@ getLocalHostname(uchar **ppName)
 		memset(&flags, 0, sizeof(flags));
 		flags.ai_flags = AI_CANONNAME;
 		int error = getaddrinfo((char*)hnbuf, NULL, &flags, &res);
-		if (error != 0) {
+		if (error != 0 &&
+		    error != EAI_NONAME && error != EAI_AGAIN && error != EAI_FAIL) {
+			/* If we get one of errors above, network is probably
+			 * not working yet, so we fall back to local hostname below
+			 */
 			dbgprintf("getaddrinfo: %s\n", gai_strerror(error));
 			ABORT_FINALIZE(RS_RET_IO_ERROR);
 		}