diff --git a/contrib/ipfilter/lib/getifname.c b/contrib/ipfilter/lib/getifname.c
index 44b4f8b53899..518950acd1a2 100644
--- a/contrib/ipfilter/lib/getifname.c
+++ b/contrib/ipfilter/lib/getifname.c
@@ -19,11 +19,9 @@
 char *getifname(ptr)
 	struct ifnet *ptr;
 {
-#if SOLARIS || defined(__hpux)
-# if SOLARIS
+#if SOLARIS
 #  include <sys/mutex.h>
 #  include <sys/condvar.h>
-# endif
 # include "../pfil/qif.h"
 	char *ifname;
 	qif_t qif;
@@ -42,13 +40,6 @@ char *getifname(ptr)
 	}
 	return ifname;
 #else
-# if defined(NetBSD) && (NetBSD >= 199905) && (NetBSD < 1991011) || \
-    defined(__OpenBSD__) || \
-    (defined(__FreeBSD__) && (__FreeBSD_version >= 501113))
-#else
-	char buf[LIFNAMSIZ];
-	int len;
-# endif
 	struct ifnet netif;
 
 	if ((void *)ptr == (void *)-1)
@@ -58,24 +49,6 @@ char *getifname(ptr)
 
 	if (kmemcpy((char *)&netif, (u_long)ptr, sizeof(netif)) == -1)
 		return "X";
-# if defined(NetBSD) && (NetBSD >= 199905) && (NetBSD < 1991011) || \
-    defined(__OpenBSD__) || defined(linux) || \
-    (defined(__FreeBSD__) && (__FreeBSD_version >= 501113))
 	return strdup(netif.if_xname);
-# else
-	if (kstrncpy(buf, (u_long)netif.if_name, sizeof(buf)) == -1)
-		return "X";
-	if (netif.if_unit < 10)
-		len = 2;
-	else if (netif.if_unit < 1000)
-		len = 3;
-	else if (netif.if_unit < 10000)
-		len = 4;
-	else
-		len = 5;
-	buf[sizeof(buf) - len] = '\0';
-	sprintf(buf + strlen(buf), "%d", netif.if_unit % 10000);
-	return strdup(buf);
-# endif
 #endif
 }