From 5032f79224ce3817924ea981bcb2b8aee10c5751 Mon Sep 17 00:00:00 2001
From: Wouter Wijngaards <wouter@nlnetlabs.nl>
Date: Tue, 26 Jan 2016 16:14:28 +0000
Subject: [PATCH] - fix netbsd interface_automatic complain about
 unimplemented.

git-svn-id: file:///svn/unbound/trunk@3609 be551aaa-1e26-0410-a405-d3ace91eadb9
---
 doc/Changelog   | 2 ++
 util/netevent.c | 6 ++++++
 2 files changed, 8 insertions(+)

diff --git a/doc/Changelog b/doc/Changelog
index c778a1616..4f648eaf9 100644
--- a/doc/Changelog
+++ b/doc/Changelog
@@ -3,6 +3,8 @@
 	- Use arc4random instead of random in tests (because it is
 	  available, possibly as compat, anyway).
 	- Fix cmsg alignment for argument to sendmsg on NetBSD.
+	- Fix that unbound complains about unimplemented IP_PKTINFO for
+	  sendmsg on NetBSD (for interface-automatic).
 
 25 January 2016: Wouter
 	- Fix #738: Swig should not be invoked with CPPFLAGS.
diff --git a/util/netevent.c b/util/netevent.c
index 1f182a025..f198b8bc4 100644
--- a/util/netevent.c
+++ b/util/netevent.c
@@ -559,6 +559,12 @@ comm_point_send_udp_msg_if(struct comm_point *c, sldns_buffer* packet,
 		verbose(VERB_OPS, "sendmsg failed: %s", strerror(errno));
 		log_addr(VERB_OPS, "remote address is", 
 			(struct sockaddr_storage*)addr, addrlen);
+#ifdef __NetBSD__
+		/* netbsd 7 has IP_PKTINFO for recv but not send */
+		if(errno == EINVAL && r->srctype == 4)
+			fatal_exit("sendmsg: No support for sendmsg(IP_PKTINFO). "
+				"Please disable interface-automatic");
+#endif
 		return 0;
 	} else if((size_t)sent != sldns_buffer_remaining(packet)) {
 		log_err("sent %d in place of %d bytes",