nsd(8): make ip-transparent option work on OpenBSD

[Florian Obser]

OK?

diff --git server.c server.c
index c0835ce8c11..fe74f9a1b56 100644
--- server.c
+++ server.c
@@ -567,7 +567,7 @@ server_init_ifs(struct nsd *nsd, size_t from, size_t to, 
int* reuseport_works)
 {
        struct addrinfo* addr;
        size_t i;
-#if defined(SO_REUSEPORT) || defined(SO_REUSEADDR) || (defined(INET6) && 
(defined(IPV6_V6ONLY) || defined(IPV6_USE_MIN_MTU) || defined(IPV6_MTU) || 
defined(IP_TRANSPARENT)) || defined(IP_FREEBIND))
+#if defined(SO_REUSEPORT) || defined(SO_REUSEADDR) || (defined(INET6) && 
(defined(IPV6_V6ONLY) || defined(IPV6_USE_MIN_MTU) || defined(IPV6_MTU) || 
defined(IP_TRANSPARENT)) || defined(IP_FREEBIND) || defined(SO_BINDANY))
        int on = 1;
 #endif
 
@@ -757,6 +757,12 @@ server_init_ifs(struct nsd *nsd, size_t from, size_t to, 
int* reuseport_works)
                                        strerror(errno));
                        }
 #endif /* IP_TRANSPARENT */
+#ifdef SO_BINDANY
+                       if (setsockopt(nsd->udp[i].s, SOL_SOCKET, SO_BINDANY, 
&on, sizeof(on)) < 0) {
+                               log_msg(LOG_ERR, "setsockopt(...,SO_BINDANY, 
...) failed for udp: %s",
+                                       strerror(errno));
+                       }
+#endif /* SO_BINDANY */
                }
 
                if (bind(nsd->udp[i].s, (struct sockaddr *) addr->ai_addr, 
addr->ai_addrlen) != 0) {
@@ -887,6 +893,12 @@ server_init_ifs(struct nsd *nsd, size_t from, size_t to, 
int* reuseport_works)
                                        strerror(errno));
                        }
 #endif /* IP_TRANSPARENT */
+#ifdef SO_BINDANY
+                       if (setsockopt(nsd->tcp[i].s, SOL_SOCKET, SO_BINDANY, 
&on, sizeof(on)) < 0) {
+                               log_msg(LOG_ERR, "setsockopt(...,SO_BINDANY, 
...) failed for tcp: %s",
+                                       strerror(errno));
+                       }
+#endif /* SO_BINDANY */
                }
 
                if (bind(nsd->tcp[i].s, (struct sockaddr *) addr->ai_addr, 
addr->ai_addrlen) != 0) {


-- 
I'm not entirely sure you are real.