git: 3737a0cdcb42 - stable/13 - bhyve: Fix getaddrinfo() error handling

From: John Baldwin <jhb_at_FreeBSD.org>
Date: Thu, 26 Jan 2023 19:25:48 UTC
The branch stable/13 has been updated by jhb:

URL: https://cgit.FreeBSD.org/src/commit/?id=3737a0cdcb42f4495438997d4ff1655273c3016b

commit 3737a0cdcb42f4495438997d4ff1655273c3016b
Author:     Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2022-02-08 17:34:03 +0000
Commit:     John Baldwin <jhb@FreeBSD.org>
CommitDate: 2023-01-26 19:21:32 +0000

    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
    
    (cherry picked from commit 927aa5fefd4c69e72d44189a04fadf80e42d0ad8)
---
 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 94167053629e..81f132e17350 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);