From dcf8825fd74f3f83b1882af4793270083b125ee5 Mon Sep 17 00:00:00 2001
From: David Lawrence <source@isc.org>
Date: Tue, 4 Jan 2000 20:15:53 +0000
Subject: [PATCH] BSD/OS 4.01 returns EPROTONOSUPPORT for failure in
 try_proto()

---
 lib/isc/unix/net.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/isc/unix/net.c b/lib/isc/unix/net.c
index 50f24c6caa..9732e251f5 100644
--- a/lib/isc/unix/net.c
+++ b/lib/isc/unix/net.c
@@ -40,6 +40,9 @@ try_proto(int domain) {
 #ifdef EAFNOSUPPORT
 		case EAFNOSUPPORT:
 #endif
+#ifdef EPROTONOSUPPORT
+		case EPROTONOSUPPORT:
+#endif
 #ifdef EINVAL
 		case EINVAL:
 #endif