Call setsockopt(2) IP_MULTICAST_LOOP w/ correct optlen.

This fixes UDP multicast socket networking.
bump PKGNAME

OK sturm@, todd@

emulators/qemu/Makefile

@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.16 2006/12/22 17:31:45 todd Exp $
+# $OpenBSD: Makefile,v 1.17 2007/01/10 20:20:06 mpf Exp $
 
 # no success building on other archs yet
 ONLY_FOR_ARCHS=		amd64 arm i386 powerpc
@@ -6,6 +6,7 @@ ONLY_FOR_ARCHS=		amd64 arm i386 powerpc
 COMMENT=		"multi system emulator"
 
 DISTNAME=		qemu-0.8.2
+PKGNAME=		${DISTNAME}p1
 CATEGORIES=		emulators
 
 HOMEPAGE=		http://fabrice.bellard.free.fr/qemu/

emulators/qemu/patches/patch-vl_c

@@ -1,5 +1,5 @@
---- vl.c.orig	Mon Dec 18 16:55:53 2006
-+++ vl.c	Mon Dec 18 17:06:04 2006
+--- vl.c.orig	Sat Jul 22 19:23:34 2006
++++ vl.c	Wed Jan  3 15:14:21 2007
 @@ -43,7 +43,8 @@
  #include <netdb.h>
  #ifdef _BSD
@@ -123,6 +123,15 @@
  
      fstat(fd, &s);
      dev = devname(s.st_rdev, S_IFCHR);
+@@ -3279,7 +3354,7 @@ static int net_socket_mcast_create(struc
+     /* Force mcast msgs to loopback (eg. several QEMUs in same host */
+     val = 1;
+     ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP, 
+-                   (const char *)&val, sizeof(val));
++                   (const char *)&val, sizeof(char));
+     if (ret < 0) {
+ 	perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
+ 	goto fail;
 @@ -3535,7 +3610,8 @@ static int net_socket_mcast_init(VLANSta
  
  }