[src/trunk]: src/sbin/route route: Enable receive error reporting on the rout...

[roy <roy%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/794857abe77e
branches:  trunk
changeset: 745878:794857abe77e
user:      roy <roy%NetBSD.org@localhost>
date:      Sat Mar 14 22:26:39 2020 +0000

description:
route: Enable receive error reporting on the routing socket

diffstat:

 sbin/route/route.c |  12 +++++++++---
 1 files changed, 9 insertions(+), 3 deletions(-)

diffs (34 lines):

diff -r 188c2e87965b -r 794857abe77e sbin/route/route.c
--- a/sbin/route/route.c        Sat Mar 14 22:23:17 2020 +0000
+++ b/sbin/route/route.c        Sat Mar 14 22:26:39 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: route.c,v 1.166 2020/02/22 00:42:15 kamil Exp $        */
+/*     $NetBSD: route.c,v 1.167 2020/03/14 22:26:39 roy Exp $  */
 
 /*
  * Copyright (c) 1983, 1989, 1991, 1993
@@ -39,7 +39,7 @@
 #if 0
 static char sccsid[] = "@(#)route.c    8.6 (Berkeley) 4/28/95";
 #else
-__RCSID("$NetBSD: route.c,v 1.166 2020/02/22 00:42:15 kamil Exp $");
+__RCSID("$NetBSD: route.c,v 1.167 2020/03/14 22:26:39 roy Exp $");
 #endif
 #endif /* not lint */
 
@@ -208,8 +208,14 @@
        pid = prog_getpid();
        if (tflag)
                sock = prog_open("/dev/null", O_WRONLY, 0);
-       else
+       else {
+               int on = 1;
+
                sock = prog_socket(PF_ROUTE, SOCK_RAW, 0);
+               if (setsockopt(sock, SOL_SOCKET, SO_RERROR,
+                   &on, sizeof(on)) == -1)
+                       warn("SO_RERROR");
+       }
        if (sock < 0)
                err(EXIT_FAILURE, "socket");