1 files changed, 48 insertions, 0 deletions
diff --git a/framework/src/suricata/src/util-cidr.c b/framework/src/suricata/src/util-cidr.c
new file mode 100644
index 00000000..300a4455
--- /dev/null
+++ b/framework/src/suricata/src/util-cidr.c
@@ -0,0 +1,48 @@
+/* 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 Victor Julien <victor@inliniac.net>
+ *
+ * CIDR utility functions
+ */
+
+#include "suricata-common.h"
+
+static uint32_t cidrs[33];
+
+void CIDRInit(void)
+{
+    int i = 0;
+
+    /* skip 0 as it will result in 0xffffffff */
+    cidrs[0] = 0;
+    for (i = 1; i < 33; i++) {
+        cidrs[i] = htonl(0xFFFFFFFF << (32 - i));
+        //printf("CIDRInit: cidrs[%02d] = 0x%08X\n", i, cidrs[i]);
+    }
+}
+
+uint32_t CIDRGet(int cidr)
+{
+    if (cidr < 0 || cidr > 32)
+        return 0;
+    return cidrs[cidr];
+}
+