suricata checkin based on commit id a4bce14770beee46a537eda3c3f6e8e8565d5d0a

Change-Id: I9a214fa0ee95e58fc640e50bd604dac7f42db48f

1 files changed, 48 insertions, 0 deletions

diff --git a/framework/src/suricata/src/util-random.c b/framework/src/suricata/src/util-random.c
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+++ b/framework/src/suricata/src/util-random.c
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+/* Copyright (C) 2007-2010 Open Information Security Foundation
+ *
+ * You can copy, redistribute or modify this Program under the terms of
+ * the GNU General Public License version 2 as published by the Free
+ * Software Foundation.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+/**
+ * \file
+ *
+ * \author Pablo Rincon <pablo.rincon.crespo@gmail.com>
+ *
+ * Utility function for seeding rand
+ */
+
+#include "suricata-common.h"
+#include "detect.h"
+#include "threads.h"
+#include "util-debug.h"
+
+/**
+ * \brief create a seed number to pass to rand() , rand_r(), and similars
+ * \retval seed for rand()
+ */
+unsigned int RandomTimePreseed(void)
+{
+    /* preseed rand() */
+    time_t now = time ( 0 );
+    unsigned char *p = (unsigned char *)&now;
+    unsigned seed = 0;
+    size_t ind;
+
+    for ( ind = 0; ind < sizeof now; ind++ )
+      seed = seed * ( UCHAR_MAX + 2U ) + p[ind];
+
+    return seed;
+}
+