1 files changed, 72 insertions, 0 deletions
diff --git a/contrib/epee/include/net/local_ip.h b/contrib/epee/include/net/local_ip.h
new file mode 100644
index 000000000..028ad73ef
--- /dev/null
+++ b/contrib/epee/include/net/local_ip.h
@@ -0,0 +1,72 @@
+// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * 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.
+// * Neither the name of the Andrey N. Sabelnikov nor the
+// names of its contributors may be used to endorse or promote products
+// derived from this software without specific prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER  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.
+// 
+
+
+#pragma once
+
+namespace epee
+{
+  namespace net_utils
+  {
+    inline
+    bool is_ip_local(boost::uint32_t ip)
+    {
+      /*
+      local ip area
+      10.0.0.0 — 10.255.255.255 
+      172.16.0.0 — 172.31.255.255 
+      192.168.0.0 — 192.168.255.255 
+      */
+      if( (ip | 0xffffff00) == 0xffffff0a)
+        return true;
+
+      if( (ip | 0xffff0000) == 0xffffa8c0)
+        return true;
+
+      if( (ip | 0xffffff00) == 0xffffffac)
+      {
+        uint32_t second_num = (ip << 8) & 0xff000000;
+        if(second_num >= 16 && second_num <= 31 )
+          return true;
+      }
+      return false;
+    }
+    inline
+    bool is_ip_loopback(boost::uint32_t ip)
+    {
+      if( (ip | 0xffffff00) == 0xffffff7f)
+        return true;
+      //MAKE_IP
+      /*
+      loopback ip
+      127.0.0.0 — 127.255.255.255 
+      */
+      return false;
+    }
+   
+  }
+}
+