1 files changed, 143 insertions, 0 deletions
diff --git a/src/libstrongswan/utils/utils/time.c b/src/libstrongswan/utils/utils/time.c
new file mode 100644
index 000000000..c67ae93f2
--- /dev/null
+++ b/src/libstrongswan/utils/utils/time.c
@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2008-2014 Tobias Brunner
+ * Copyright (C) 2005-2008 Martin Willi
+ * Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+#ifdef WIN32
+/* for GetTickCount64, Windows 7 */
+# define _WIN32_WINNT 0x0601
+#endif
+
+#define _GNU_SOURCE
+#include <utils/utils.h>
+
+#include <inttypes.h>
+#include <time.h>
+
+/**
+ * Return monotonic time
+ */
+time_t time_monotonic(timeval_t *tv)
+{
+#ifdef WIN32
+	ULONGLONG ms;
+	time_t s;
+
+	ms = GetTickCount64();
+	s = ms / 1000;
+	if (tv)
+	{
+		tv->tv_sec = s;
+		tv->tv_usec = (ms - (s * 1000)) * 1000;
+	}
+	return s;
+#else /* !WIN32 */
+#if defined(HAVE_CLOCK_GETTIME) && \
+	(defined(HAVE_CONDATTR_CLOCK_MONOTONIC) || \
+	 defined(HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC))
+	/* as we use time_monotonic() for condvar operations, we use the
+	 * monotonic time source only if it is also supported by pthread. */
+	timespec_t ts;
+
+	if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0)
+	{
+		if (tv)
+		{
+			tv->tv_sec = ts.tv_sec;
+			tv->tv_usec = ts.tv_nsec / 1000;
+		}
+		return ts.tv_sec;
+	}
+#endif /* HAVE_CLOCK_GETTIME && (...) */
+	/* Fallback to non-monotonic timestamps:
+	 * On MAC OS X, creating monotonic timestamps is rather difficult. We
+	 * could use mach_absolute_time() and catch sleep/wakeup notifications.
+	 * We stick to the simpler (non-monotonic) gettimeofday() for now.
+	 * But keep in mind: we need the same time source here as in condvar! */
+	if (!tv)
+	{
+		return time(NULL);
+	}
+	if (gettimeofday(tv, NULL) != 0)
+	{	/* should actually never fail if passed pointers are valid */
+		return -1;
+	}
+	return tv->tv_sec;
+#endif /* !WIN32 */
+}
+
+/**
+ * Described in header.
+ */
+int time_printf_hook(printf_hook_data_t *data, printf_hook_spec_t *spec,
+					 const void *const *args)
+{
+	static const char* months[] = {
+		"Jan", "Feb", "Mar", "Apr", "May", "Jun",
+		"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
+	};
+	time_t *time = *((time_t**)(args[0]));
+	bool utc = *((int*)(args[1]));
+	struct tm t, *ret = NULL;
+
+	if (*time != UNDEFINED_TIME)
+	{
+		if (utc)
+		{
+			ret = gmtime_r(time, &t);
+		}
+		else
+		{
+			ret = localtime_r(time, &t);
+		}
+	}
+	if (ret == NULL)
+	{
+		return print_in_hook(data, "--- -- --:--:--%s----",
+							 utc ? " UTC " : " ");
+	}
+	return print_in_hook(data, "%s %02d %02d:%02d:%02d%s%04d",
+						 months[t.tm_mon], t.tm_mday, t.tm_hour, t.tm_min,
+						 t.tm_sec, utc ? " UTC " : " ", t.tm_year + 1900);
+}
+
+/**
+ * Described in header.
+ */
+int time_delta_printf_hook(printf_hook_data_t *data, printf_hook_spec_t *spec,
+						   const void *const *args)
+{
+	char* unit = "second";
+	time_t *arg1 = *((time_t**)(args[0]));
+	time_t *arg2 = *((time_t**)(args[1]));
+	u_int64_t delta = llabs(*arg1 - *arg2);
+
+	if (delta > 2 * 60 * 60 * 24)
+	{
+		delta /= 60 * 60 * 24;
+		unit = "day";
+	}
+	else if (delta > 2 * 60 * 60)
+	{
+		delta /= 60 * 60;
+		unit = "hour";
+	}
+	else if (delta > 2 * 60)
+	{
+		delta /= 60;
+		unit = "minute";
+	}
+	return print_in_hook(data, "%" PRIu64 " %s%s", delta, unit,
+						 (delta == 1) ? "" : "s");
+}