From 927aa5fefd4c69e72d44189a04fadf80e42d0ad8 Mon Sep 17 00:00:00 2001
From: Mark Johnston <markj@FreeBSD.org>
Date: Tue, 8 Feb 2022 12:34:03 -0500
Subject: [PATCH] bhyve: Fix getaddrinfo() error handling

- Use errx() since errno will not be set.
- Print the message returned by gai_strerror().

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
---
 usr.sbin/bhyve/gdb.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/usr.sbin/bhyve/gdb.c b/usr.sbin/bhyve/gdb.c
index 0cee1c8f954..3842a1d58de 100644
--- a/usr.sbin/bhyve/gdb.c
+++ b/usr.sbin/bhyve/gdb.c
@@ -1858,8 +1858,9 @@ init_gdb(struct vmctx *_ctx)
 	hints.ai_socktype = SOCK_STREAM;
 	hints.ai_flags = AI_NUMERICSERV | AI_PASSIVE;
 
-	if (getaddrinfo(saddr, sport, &hints, &gdbaddr) != 0)
-		err(1, "gdb address resolve");
+	error = getaddrinfo(saddr, sport, &hints, &gdbaddr);
+	if (error != 0)
+		errx(1, "gdb address resolution: %s", gai_strerror(error));
 
 	ctx = _ctx;
 	s = socket(gdbaddr->ai_family, gdbaddr->ai_socktype, 0);