Add patches to fix the following bugs:

 - Fix renewal of IA_NA [*]
 - Update ifid on interface restart, it may have changed [*]
 - Remove unnecessary PF_ROUTE socket. [*]
 - Fix wrong length used in memset().

Obtained from:	Debian/Ubuntu/Fedora/Red Hat packages via OpenBSD [*]
Suggested by:	Brad Smith [*]

net/dhcp6/Makefile

@@ -3,7 +3,7 @@
 
 PORTNAME=	dhcp6
 PORTVERSION=	20080615
-PORTREVISION=	3
+PORTREVISION=	4
 CATEGORIES=	net ipv6
 MASTER_SITES=	SF/wide-dhcpv6/wide-dhcpv6/wide-dhcpv6-${PORTVERSION}
 DISTNAME=	wide-dhcpv6-${PORTVERSION}

net/dhcp6/files/patch-addrconf.c

@@ -0,0 +1,11 @@
+--- addrconf.c.orig	2008-06-15 07:48:40 UTC
++++ addrconf.c
+@@ -173,7 +173,7 @@ update_address(ia, addr, dhcpifp, ctlp, 
+ 	    sacreate ? "create" : "update",
+ 	    in6addr2str(&addr->addr, 0), addr->pltime, addr->vltime);
+
+-	if (sa->addr.vltime != 0)
++	if (sa->addr.vltime != 0 || sacreate)
+ 		if (na_ifaddrconf(IFADDRCONF_ADD, sa) < 0)
+ 			return (-1);
+

net/dhcp6/files/patch-auth.c

@@ -0,0 +1,11 @@
+--- auth.c.orig	2007-03-21 09:52:57 UTC
++++ auth.c
+@@ -222,7 +222,7 @@ hmacmd5_invalidate(hmacmd5_t *ctx)
+ {
+ 	md5_invalidate(&ctx->md5ctx);
+ 	memset(ctx->key, 0, sizeof(ctx->key));
+-	memset(ctx, 0, sizeof(ctx));
++	memset(ctx, 0, sizeof(*ctx));
+ }
+
+ /*

net/dhcp6/files/patch-dhcp6c.c

@@ -8,7 +8,15 @@
 
  #include <dhcp6.h>
  #include <config.h>
-@@ -257,7 +258,7 @@ client6_init()
+@@ -88,7 +89,6 @@ static sig_atomic_t sig_flags = 0;
+ const dhcp6_mode_t dhcp6_mode = DHCP6_MODE_CLIENT;
+
+ int sock;	/* inbound/outbound udp port */
+-int rtsock;	/* routing socket */
+ int ctlsock = -1;		/* control TCP port */
+ char *ctladdr = DEFAULT_CLIENT_CONTROL_ADDR;
+ char *ctlport = DEFAULT_CLIENT_CONTROL_PORT;
+@@ -257,7 +257,7 @@ client6_init()
  {
  	struct addrinfo hints, *res;
  	static struct sockaddr_in6 sa6_allagent_storage;
@@ -17,7 +25,7 @@
 
  	/* get our DUID */
  	if (get_duid(DUID_FILE, &client_duid)) {
-@@ -287,6 +288,20 @@ client6_init()
+@@ -287,6 +287,20 @@ client6_init()
  		dprintf(LOG_ERR, FNAME, "socket");
  		exit(1);
  	}
@@ -38,7 +46,55 @@
  	if (setsockopt(sock, SOL_SOCKET, SO_REUSEPORT,
  		       &on, sizeof(on)) < 0) {
  		dprintf(LOG_ERR, FNAME,
-@@ -1828,15 +1843,6 @@ client6_recvreply(ifp, dh6, len, optinfo
+@@ -337,13 +351,6 @@ client6_init()
+ 	}
+ 	freeaddrinfo(res);
+
+-	/* open a routing socket to watch the routing table */
+-	if ((rtsock = socket(PF_ROUTE, SOCK_RAW, 0)) < 0) {
+-		dprintf(LOG_ERR, FNAME, "open a routing socket: %s",
+-		    strerror(errno));
+-		exit(1);
+-	}
+-
+ 	memset(&hints, 0, sizeof(hints));
+ 	hints.ai_family = PF_INET6;
+ 	hints.ai_socktype = SOCK_DGRAM;
+@@ -596,7 +603,7 @@ get_ifname(bpp, lenp, ifbuf, ifbuflen)
+ 	if (*lenp < ifnamelen || ifnamelen > ifbuflen)
+ 		return (-1);
+
+-	memset(ifbuf, 0, sizeof(ifbuf));
++	memset(ifbuf, 0, ifbuflen);
+ 	memcpy(ifbuf, *bpp, ifnamelen);
+ 	if (ifbuf[ifbuflen - 1] != '\0')
+ 		return (-1);	/* not null terminated */
+@@ -763,6 +770,15 @@ client6_ifctl(ifname, command)
+
+ 	switch(command) {
+ 	case DHCP6CTL_COMMAND_START:
++		/*
++		 * The ifid might have changed, so reset it before releasing the
++		 * lease.
++		 */
++		if (ifreset(ifp)) {
++			dprintf(LOG_NOTICE, FNAME, "failed to reset %s",
++			    ifname);
++			return (-1);
++		}
+ 		free_resources(ifp);
+ 		if (client6_start(ifp)) {
+ 			dprintf(LOG_NOTICE, FNAME, "failed to restart %s",
+@@ -929,7 +945,7 @@ construct_confdata(ifp, ev)
+ 			    "failed to create a new event data");
+ 			goto fail;
+ 		}
+-		memset(evd, 0, sizeof(evd));
++		memset(evd, 0, sizeof(*evd));
+
+ 		memset(&iaparam, 0, sizeof(iaparam));
+ 		iaparam.iaid = iac->iaid;
+@@ -1828,15 +1844,6 @@ client6_recvreply(ifp, dh6, len, optinfo
  	}
 
  	/*
@@ -54,7 +110,7 @@
  	 * Set refresh timer for configuration information specified in
  	 * information-request.  If the timer value is specified by the server
  	 * in an information refresh time option, use it; use the protocol
-@@ -1888,6 +1894,15 @@ client6_recvreply(ifp, dh6, len, optinfo
+@@ -1888,6 +1895,15 @@ client6_recvreply(ifp, dh6, len, optinfo
  		    &optinfo->serverID, ev->authparam);
  	}