$NetBSD: patch-aa,v 1.3 2016/09/16 08:47:48 jperkin Exp $

Suport NetBSD and SunOS.

--- lib/IO/Interface.xs.orig	2014-12-09 16:41:30.000000000 +0000
+++ lib/IO/Interface.xs
@@ -442,6 +442,9 @@ if_addr(sock, name, ...)
 	 operation = SIOCGIFADDR;
        }
        if (!Ioctl(sock,operation,&ifr)) XSRETURN_UNDEF;
+#ifdef __NetBSD__
+     ifr.ifr_addr.sa_family = AF_INET;
+#endif
        if (ifr.ifr_addr.sa_family != AF_INET) croak ("Address is not in the AF_INET family.\n");
        RETVAL = inet_ntoa(((struct sockaddr_in*) &ifr.ifr_addr)->sin_addr);
      }
@@ -587,7 +590,7 @@ if_hwaddr(sock, name, ...)
      char           *newaddr,hwaddr[128];
      CODE:
    {
-#if !((defined(HAS_IOCTL) && defined(SIOCGIFHWADDR)) || defined(USE_GETIFADDRS))
+#if !((defined(HAS_IOCTL) && defined(SIOCGIFHWADDR)) || defined(USE_GETIFADDRS)) || defined(__sun)
      XSRETURN_UNDEF;
 #endif
 #if (defined(USE_GETIFADDRS) && defined(HAVE_SOCKADDR_DL_STRUCT))
@@ -620,7 +623,7 @@ if_hwaddr(sock, name, ...)
      freeifaddrs(ifap);
 
      RETVAL = hwaddr;
-#elif (defined(HAS_IOCTL) && defined(SIOCGIFHWADDR))
+#elif (defined(HAS_IOCTL) && defined(SIOCGIFHWADDR)) && !defined(__sun)
      bzero((void*)&ifr,sizeof(struct ifreq));
      strncpy(ifr.ifr_name,name,IFNAMSIZ-1);
      ifr.ifr_hwaddr.sa_family = AF_UNSPEC;