From 6585e5ad764ee2414d9b01f30784b6549bc8f58e Mon Sep 17 00:00:00 2001
From: Othmar Gsenger <otti@anytun.org>
Date: Mon, 30 Jul 2007 19:37:53 +0000
Subject: added keyexchange

---
 keyexchange/isakmpd-20041012/timer.c | 139 +++++++++++++++++++++++++++++++++++
 1 file changed, 139 insertions(+)
 create mode 100644 keyexchange/isakmpd-20041012/timer.c

(limited to 'keyexchange/isakmpd-20041012/timer.c')

diff --git a/keyexchange/isakmpd-20041012/timer.c b/keyexchange/isakmpd-20041012/timer.c
new file mode 100644
index 0000000..45bcc49
--- /dev/null
+++ b/keyexchange/isakmpd-20041012/timer.c
@@ -0,0 +1,139 @@
+/* $OpenBSD: timer.c,v 1.14 2004/06/14 09:55:42 ho Exp $	 */
+/* $EOM: timer.c,v 1.13 2000/02/20 19:58:42 niklas Exp $	 */
+
+/*
+ * Copyright (c) 1998, 1999 Niklas Hallqvist.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This code was written under funding by Ericsson Radio Systems.
+ */
+
+#include <sys/queue.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "sysdep.h"
+
+#include "log.h"
+#include "timer.h"
+
+static	TAILQ_HEAD(event_list, event) events;
+
+void
+timer_init(void)
+{
+	TAILQ_INIT(&events);
+}
+
+void
+timer_next_event(struct timeval **timeout)
+{
+	struct timeval  now;
+
+	if (TAILQ_FIRST(&events)) {
+		gettimeofday(&now, 0);
+		if (timercmp(&now, &TAILQ_FIRST(&events)->expiration, >=))
+			timerclear(*timeout);
+		else
+			timersub(&TAILQ_FIRST(&events)->expiration, &now,
+			    *timeout);
+	} else
+		*timeout = 0;
+}
+
+void
+timer_handle_expirations(void)
+{
+	struct timeval  now;
+	struct event   *n;
+
+	gettimeofday(&now, 0);
+	for (n = TAILQ_FIRST(&events); n && timercmp(&now, &n->expiration, >=);
+	    n = TAILQ_FIRST(&events)) {
+		LOG_DBG((LOG_TIMER, 10,
+		    "timer_handle_expirations: event %s(%p)", n->name,
+		    n->arg));
+		TAILQ_REMOVE(&events, n, link);
+		(*n->func)(n->arg);
+		free(n);
+	}
+}
+
+struct event *
+timer_add_event(char *name, void (*func)(void *), void *arg,
+    struct timeval *expiration)
+{
+	struct event   *ev = (struct event *) malloc(sizeof *ev);
+	struct event   *n;
+	struct timeval  now;
+
+	if (!ev)
+		return 0;
+	ev->name = name;
+	ev->func = func;
+	ev->arg = arg;
+	gettimeofday(&now, 0);
+	memcpy(&ev->expiration, expiration, sizeof *expiration);
+	for (n = TAILQ_FIRST(&events);
+	    n && timercmp(expiration, &n->expiration, >=);
+	    n = TAILQ_NEXT(n, link))
+		;
+	if (n) {
+		LOG_DBG((LOG_TIMER, 10,
+		    "timer_add_event: event %s(%p) added before %s(%p), "
+		    "expiration in %lds", name,
+		    arg, n->name, n->arg, expiration->tv_sec - now.tv_sec));
+		TAILQ_INSERT_BEFORE(n, ev, link);
+	} else {
+		LOG_DBG((LOG_TIMER, 10, "timer_add_event: event %s(%p) added "
+		    "last, expiration in %lds", name, arg,
+		    expiration->tv_sec - now.tv_sec));
+		TAILQ_INSERT_TAIL(&events, ev, link);
+	}
+	return ev;
+}
+
+void
+timer_remove_event(struct event *ev)
+{
+	LOG_DBG((LOG_TIMER, 10, "timer_remove_event: removing event %s(%p)",
+	    ev->name, ev->arg));
+	TAILQ_REMOVE(&events, ev, link);
+	free(ev);
+}
+
+void
+timer_report(void)
+{
+	struct event   *ev;
+	struct timeval  now;
+
+	gettimeofday(&now, 0);
+
+	for (ev = TAILQ_FIRST(&events); ev; ev = TAILQ_NEXT(ev, link))
+		LOG_DBG((LOG_REPORT, 0,
+		    "timer_report: event %s(%p) scheduled in %d seconds",
+		    (ev->name ? ev->name : "<unknown>"), ev,
+		    (int) (ev->expiration.tv_sec - now.tv_sec)));
+}
-- 
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