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authorAnas Nashif <anas.nashif@intel.com>2012-10-30 12:57:26 -0700
committerAnas Nashif <anas.nashif@intel.com>2012-10-30 12:57:26 -0700
commit1a78a62555be32868418fe52f8e330c9d0f95d5a (patch)
treed3765a80e7d3b9640ec2e930743630cd6b9fce2b /boost/asio/ip/impl/address_v4.ipp
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Imported Upstream version 1.49.0upstream/1.49.0
Diffstat (limited to 'boost/asio/ip/impl/address_v4.ipp')
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1 files changed, 178 insertions, 0 deletions
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+//
+// ip/impl/address_v4.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2012 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef BOOST_ASIO_IP_IMPL_ADDRESS_V4_IPP
+#define BOOST_ASIO_IP_IMPL_ADDRESS_V4_IPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include <boost/asio/detail/config.hpp>
+#include <climits>
+#include <stdexcept>
+#include <boost/throw_exception.hpp>
+#include <boost/asio/error.hpp>
+#include <boost/asio/detail/socket_ops.hpp>
+#include <boost/asio/detail/throw_error.hpp>
+#include <boost/asio/ip/address_v4.hpp>
+
+#include <boost/asio/detail/push_options.hpp>
+
+namespace boost {
+namespace asio {
+namespace ip {
+
+address_v4::address_v4(const address_v4::bytes_type& bytes)
+{
+#if UCHAR_MAX > 0xFF
+ if (bytes[0] > 0xFF || bytes[1] > 0xFF
+ || bytes[2] > 0xFF || bytes[3] > 0xFF)
+ {
+ std::out_of_range ex("address_v4 from bytes_type");
+ boost::throw_exception(ex);
+ }
+#endif // UCHAR_MAX > 0xFF
+
+ using namespace std; // For memcpy.
+ memcpy(&addr_.s_addr, bytes.data(), 4);
+}
+
+address_v4::address_v4(unsigned long addr)
+{
+#if ULONG_MAX > 0xFFFFFFFF
+ if (addr > 0xFFFFFFFF)
+ {
+ std::out_of_range ex("address_v4 from unsigned long");
+ boost::throw_exception(ex);
+ }
+#endif // ULONG_MAX > 0xFFFFFFFF
+
+ addr_.s_addr = boost::asio::detail::socket_ops::host_to_network_long(addr);
+}
+
+address_v4::bytes_type address_v4::to_bytes() const
+{
+ using namespace std; // For memcpy.
+ bytes_type bytes;
+#if defined(BOOST_ASIO_HAS_STD_ARRAY)
+ memcpy(bytes.data(), &addr_.s_addr, 4);
+#else // defined(BOOST_ASIO_HAS_STD_ARRAY)
+ memcpy(bytes.elems, &addr_.s_addr, 4);
+#endif // defined(BOOST_ASIO_HAS_STD_ARRAY)
+ return bytes;
+}
+
+unsigned long address_v4::to_ulong() const
+{
+ return boost::asio::detail::socket_ops::network_to_host_long(addr_.s_addr);
+}
+
+std::string address_v4::to_string() const
+{
+ boost::system::error_code ec;
+ std::string addr = to_string(ec);
+ boost::asio::detail::throw_error(ec);
+ return addr;
+}
+
+std::string address_v4::to_string(boost::system::error_code& ec) const
+{
+ char addr_str[boost::asio::detail::max_addr_v4_str_len];
+ const char* addr =
+ boost::asio::detail::socket_ops::inet_ntop(AF_INET, &addr_, addr_str,
+ boost::asio::detail::max_addr_v4_str_len, 0, ec);
+ if (addr == 0)
+ return std::string();
+ return addr;
+}
+
+address_v4 address_v4::from_string(const char* str)
+{
+ boost::system::error_code ec;
+ address_v4 addr = from_string(str, ec);
+ boost::asio::detail::throw_error(ec);
+ return addr;
+}
+
+address_v4 address_v4::from_string(
+ const char* str, boost::system::error_code& ec)
+{
+ address_v4 tmp;
+ if (boost::asio::detail::socket_ops::inet_pton(
+ AF_INET, str, &tmp.addr_, 0, ec) <= 0)
+ return address_v4();
+ return tmp;
+}
+
+address_v4 address_v4::from_string(const std::string& str)
+{
+ return from_string(str.c_str());
+}
+
+address_v4 address_v4::from_string(
+ const std::string& str, boost::system::error_code& ec)
+{
+ return from_string(str.c_str(), ec);
+}
+
+bool address_v4::is_loopback() const
+{
+ return (to_ulong() & 0xFF000000) == 0x7F000000;
+}
+
+bool address_v4::is_unspecified() const
+{
+ return to_ulong() == 0;
+}
+
+bool address_v4::is_class_a() const
+{
+ return (to_ulong() & 0x80000000) == 0;
+}
+
+bool address_v4::is_class_b() const
+{
+ return (to_ulong() & 0xC0000000) == 0x80000000;
+}
+
+bool address_v4::is_class_c() const
+{
+ return (to_ulong() & 0xE0000000) == 0xC0000000;
+}
+
+bool address_v4::is_multicast() const
+{
+ return (to_ulong() & 0xF0000000) == 0xE0000000;
+}
+
+address_v4 address_v4::broadcast(const address_v4& addr, const address_v4& mask)
+{
+ return address_v4(addr.to_ulong() | (mask.to_ulong() ^ 0xFFFFFFFF));
+}
+
+address_v4 address_v4::netmask(const address_v4& addr)
+{
+ if (addr.is_class_a())
+ return address_v4(0xFF000000);
+ if (addr.is_class_b())
+ return address_v4(0xFFFF0000);
+ if (addr.is_class_c())
+ return address_v4(0xFFFFFF00);
+ return address_v4(0xFFFFFFFF);
+}
+
+} // namespace ip
+} // namespace asio
+} // namespace boost
+
+#include <boost/asio/detail/pop_options.hpp>
+
+#endif // BOOST_ASIO_IP_IMPL_ADDRESS_V4_IPP