diff --git a/lib/libc/rpc/getrpcport.c b/lib/libc/rpc/getrpcport.c
--- a/lib/libc/rpc/getrpcport.c
+++ b/lib/libc/rpc/getrpcport.c
@@ -62,14 +62,14 @@
 
 	assert(host != NULL);
 
-	if ((hp = gethostbyname(host)) == NULL)
+	if ((hp = gethostbyname2(host, AF_INET)) == NULL)
 		return (0);
 	memset(&addr, 0, sizeof(addr));
 	addr.sin_len = sizeof(struct sockaddr_in);
 	addr.sin_family = AF_INET;
 	addr.sin_port =  0;
-	if (hp->h_length > addr.sin_len)
-		hp->h_length = addr.sin_len;
+	if (hp->h_length > sizeof(addr.sin_addr.s_addr))
+		hp->h_length = sizeof(addr.sin_addr.s_addr);
 	memcpy(&addr.sin_addr.s_addr, hp->h_addr, (size_t)hp->h_length);
 	/* Inconsistent interfaces need casts! :-( */
 	return (pmap_getport(&addr, (u_long)prognum, (u_long)versnum,