From d745581dbd39820a3e1aba5587ec6ad611f6627d Mon Sep 17 00:00:00 2001
From: Wouter Wijngaards <wouter@nlnetlabs.nl>
Date: Mon, 6 Apr 2009 10:20:08 +0000
Subject: [PATCH] FreeBSD jail detect IPv6 not accessible.

git-svn-id: file:///svn/unbound/trunk@1586 be551aaa-1e26-0410-a405-d3ace91eadb9
---
 doc/Changelog             |  1 +
 services/listen_dnsport.c | 10 ++++++++--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/doc/Changelog b/doc/Changelog
index 3f8405a8b..c28ebbbe3 100644
--- a/doc/Changelog
+++ b/doc/Changelog
@@ -1,5 +1,6 @@
 6 April 2009: Wouter
 	- windows compile fix.
+	- Detect FreeBSD jail without ipv6 addresses assigned.
 
 3 April 2009: Wouter
 	- Fixed a bug that caused messages to be stored in the cache too 
diff --git a/services/listen_dnsport.c b/services/listen_dnsport.c
index 797be106e..3171c433c 100644
--- a/services/listen_dnsport.c
+++ b/services/listen_dnsport.c
@@ -169,7 +169,10 @@ create_udp_sock(int family, int socktype, struct sockaddr* addr,
 #ifndef USE_WINSOCK
 #ifdef EADDRINUSE
 		*inuse = (errno == EADDRINUSE);
-		if(errno != EADDRINUSE)
+		/* detect freebsd jail with no ipv6 permission */
+		if(family==AF_INET6 && errno==EINVAL)
+			*noproto = 1;
+		else if(errno != EADDRINUSE)
 			log_err("can't bind socket: %s", strerror(errno));
 #endif
 #else /* USE_WINSOCK */
@@ -249,7 +252,10 @@ create_tcp_accept_sock(struct addrinfo *addr, int v6only, int* noproto)
 #endif /* IPV6_V6ONLY */
 	if(bind(s, addr->ai_addr, addr->ai_addrlen) != 0) {
 #ifndef USE_WINSOCK
-		log_err("can't bind socket: %s", strerror(errno));
+		/* detect freebsd jail with no ipv6 permission */
+		if(addr->ai_family==AF_INET6 && errno==EINVAL)
+			*noproto = 1;
+		else log_err("can't bind socket: %s", strerror(errno));
 #else
 		log_err("can't bind socket: %s", 
 			wsa_strerror(WSAGetLastError()));