From 1df00c4650477e471eb25a085cd34fcd93dbf5bd Mon Sep 17 00:00:00 2001
From: yasuoka <yasuoka@openbsd.org>
Date: Tue, 27 Oct 2015 04:18:36 +0000
Subject: [PATCH] Fix radiusd module to set O_NONBLOCK properly.

diff from Yuuichi Someya.
---
 usr.sbin/radiusd/radiusd.c        | 14 +++++++++-----
 usr.sbin/radiusd/radiusd_module.c |  9 +++++----
 2 files changed, 14 insertions(+), 9 deletions(-)

diff --git a/usr.sbin/radiusd/radiusd.c b/usr.sbin/radiusd/radiusd.c
index 5f8e0672f98..0c1a2ff62e5 100644
--- a/usr.sbin/radiusd/radiusd.c
+++ b/usr.sbin/radiusd/radiusd.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: radiusd.c,v 1.9 2015/10/19 22:07:37 yasuoka Exp $	*/
+/*	$OpenBSD: radiusd.c,v 1.10 2015/10/27 04:18:36 yasuoka Exp $	*/
 
 /*
  * Copyright (c) 2013 Internet Initiative Japan Inc.
@@ -930,7 +930,7 @@ radiusd_module_load(struct radiusd *radiusd, const char *path, const char *name)
 {
 	struct radiusd_module		*module = NULL;
 	pid_t				 pid;
-	int				 on, pairsock[] = { -1, -1 };
+	int				 ival, pairsock[] = { -1, -1 };
 	const char			*av[3];
 	ssize_t				 n;
 	struct imsg			 imsg;
@@ -967,9 +967,13 @@ radiusd_module_load(struct radiusd *radiusd, const char *path, const char *name)
 	close(pairsock[1]);
 
 	module->fd = pairsock[0];
-	on = 1;
-	if (fcntl(module->fd, O_NONBLOCK, &on) == -1) {
-		log_warn("Could not load module `%s': fcntl(,O_NONBLOCK)",
+	if ((ival = fcntl(module->fd, F_GETFL, 0)) < 0) {
+		log_warn("Could not load module `%s': fcntl(F_GETFL)",
+		    name);
+		goto on_error;
+	}
+	if (fcntl(module->fd, F_SETFL, ival | O_NONBLOCK) < 0) {
+		log_warn("Could not load module `%s': fcntl(F_SETFL,O_NONBLOCK)",
 		    name);
 		goto on_error;
 	}
diff --git a/usr.sbin/radiusd/radiusd_module.c b/usr.sbin/radiusd/radiusd_module.c
index c82bc9cbee3..e3a5e577dcc 100644
--- a/usr.sbin/radiusd/radiusd_module.c
+++ b/usr.sbin/radiusd/radiusd_module.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: radiusd_module.c,v 1.6 2015/10/19 09:47:37 yasuoka Exp $	*/
+/*	$OpenBSD: radiusd_module.c,v 1.7 2015/10/27 04:18:36 yasuoka Exp $	*/
 
 /*
  * Copyright (c) 2015 YASUOKA Masahiko <yasuoka@yasuoka.net>
@@ -100,10 +100,11 @@ void
 module_start(struct module_base *base)
 {
 #ifdef USE_LIBEVENT
-	int	 on;
+	int	 ival;
 
-	on = 1;
-	if (fcntl(base->ibuf.fd, O_NONBLOCK, &on) == -1)
+	if ((ival = fcntl(base->ibuf.fd, F_GETFL, 0)) < 0)
+		err(1, "Failed to F_GETFL");
+	if (fcntl(base->ibuf.fd, F_SETFL, ival | O_NONBLOCK) < 0)
 		err(1, "Failed to setup NONBLOCK");
 	event_set(&base->ev, base->ibuf.fd, EV_READ, module_on_event, base);
 	event_add(&base->ev, NULL);
-- 
2.20.1