From a4559271501670b39305fc3575ae8d87fa03d35e Mon Sep 17 00:00:00 2001
From: Bill Nagel <bill@axzez.com>
Date: Wed, 13 Jul 2022 00:27:32 -0400
Subject: [PATCH] handle HOSTUNREACH for blocking and non-blocking connects

---
 lib/std/os.zig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/std/os.zig b/lib/std/os.zig
index f4653920ae..8b760668a3 100644
--- a/lib/std/os.zig
+++ b/lib/std/os.zig
@@ -3966,6 +3966,7 @@ pub fn connect(sock: socket_t, sock_addr: *const sockaddr, len: socklen_t) Conne
             .FAULT => unreachable, // The socket structure address is outside the user's address space.
             .INTR => continue,
             .ISCONN => unreachable, // The socket is already connected.
+            .HOSTUNREACH => return error.NetworkUnreachable,
             .NETUNREACH => return error.NetworkUnreachable,
             .NOTSOCK => unreachable, // The file descriptor sockfd does not refer to a socket.
             .PROTOTYPE => unreachable, // The socket type does not support the requested communications protocol.
@@ -3995,6 +3996,7 @@ pub fn getsockoptError(sockfd: fd_t) ConnectError!void {
             .CONNREFUSED => return error.ConnectionRefused,
             .FAULT => unreachable, // The socket structure address is outside the user's address space.
             .ISCONN => unreachable, // The socket is already connected.
+            .HOSTUNREACH => return error.NetworkUnreachable,
             .NETUNREACH => return error.NetworkUnreachable,
             .NOTSOCK => unreachable, // The file descriptor sockfd does not refer to a socket.
             .PROTOTYPE => unreachable, // The socket type does not support the requested communications protocol.