#include <boost/cstdint.hpp>
#include <boost/function.hpp>
#include <boost/array.hpp>
+#include <boost/operators.hpp>
#include "Utils/SafeBool.hh"
//#include "INet4Address.mpp"
INet4Address represents a simple IP address. It is modelled as a fixed-size
container/sequence of 4 bytes.
+ \see CheckINet4Network \n INet4Network
+
\implementation We awkwardly need to use static named constructors (<tt>from_</tt> members)
instead of ordinarily overloaded constructors for one simple reason: <tt>char *</tt>
doubles as string literal and as arbitrary data iterator. The iterator constructor can
class INet4Address
: public boost::array<boost::uint8_t,4>,
public ComparableSafeBool<INet4Address>
-
{
public:
///////////////////////////////////////////////////////////////////////////
inaddr_type iref() const;
};
+ /** \brief Output INet4Address instance as it's string representation
+ \related INet4Address
+ */
std::ostream & operator<<(std::ostream & os, INet4Address const & addr);
+ /** \brief CHeck INet4Address against a fixed network prefix
+
+ This helper allows to easily and efficiently check an INet4Address against an arbitrary but
+ constant network prefix. The network prefix is represented by
+
+ \par ""
+ <tt>senf::CheckINet4Network<</tt> <i>addr</i> <tt>,</tt> <i>prefix-len</i> <tt>></tt>
+
+ Where \a addr is the v4 Internet address as a 32-bit unsigned integer number in host byte
+ order and \a prefix_len is the length of the network prefix. The class exposes a single
+ static member <tt>match(</tt> <i>addr</i> <tt>)</tt> which matches the INet4Address \a addr
+ against the prefix:
+
+ \code
+ if (senf::CheckINet4Network<0x7F000000u,8u>::match(addr)) {
+ // 'addr' is within the 127.0.0.0/8 loopback network
+ ...
+ }
+ \endcode
+
+ \implementation This is implemented the way it is so the syntax is identical to the
+ CheckINet6Network syntax.
+ */
+ template <boost::uint32_t address, unsigned prefix_len>
+ class CheckINet4Network
+ {
+ public:
+ static bool match(INet4Address const & addr);
+ };
+
+ /** \brief IpV4 network prefix
+
+ This class represents an IpV4 network prefix in CIDR notation.
+ */
+ class INet4Network
+ : public boost::equality_comparable<INet4Network>,
+ public ComparableSafeBool<INet4Network>
+ {
+ public:
+ ///////////////////////////////////////////////////////////////////////////
+ ///\name Structors and default members
+ ///@{
+
+ INet4Network(); ///< Construct empty (0.0.0.0/0) network
+ INet4Network(INet4Address address, unsigned prefix_len);
+ ///< Construct network from given address and prefix length
+ explicit INet4Network(std::string s); ///< Construct network from CIDR notation
+
+ ///@}
+ ///////////////////////////////////////////////////////////////////////////
+
+ INet4Address const & address() const; ///< Get the networks address
+ unsigned prefix_len() const; ///< Get the networks prefix length
+
+ bool boolean_test() const; ///< \c true, if INet4Network is non-empty
+ bool operator==(INet4Network const & other) const;
+ ///< Compare to networks for equality
+
+ bool match(INet4Address addr) const; ///< \c true, if the network includes \a addr
+ bool match(INet4Network net) const; ///< \c true, if the network includes \a net
+ /**< The is true, if \a net is sub-network (or the same as)
+ \c this. */
+
+ INet4Address host(boost::uint32_t number); ///< Return the host with the given number
+ /**< Returns the host with the given number within the
+ network. If the number is larger than the maximum
+ host number in the network, it is truncated. So \c
+ host(0) is the networks own address, \c host(1)
+ customarily is the default router and \c host(-1) is
+ the broadcast address. */
+
+ INet4Network subnet(boost::uint32_t net, unsigned prefix_len);
+ ///< Return the given subnet of \c this
+ /**< The returned INet4Network will be a subnet of \c this
+ with the given network number. The network number is
+ comprised by the bits above \a prefix_len:
+ \code
+ INet4Network("192.168.0.0/16").subnet(111u,24u) == INet4Network("192.168.111.0/24")
+ INet4Network("192.168.111.0/24").subnet(1u,28u) == INet4Network("192.168.111.16/28")
+ \endcode
+ \param[in] net network number
+ \param[in] prefix_len length of subnet prefix */
+
+ protected:
+
+ private:
+ boost::uint32_t mask() const;
+
+ unsigned prefix_len_;
+ INet4Address address_;
+ };
+
+ /** \brief Output INet4Network instance as it's string representation
+ \related INet4Network
+ */
+ std::ostream & operator<<(std::ostream & os, INet4Network const & addr);
+
}
///////////////////////////////hh.e////////////////////////////////////////
#include "INet4Address.cci"
#include "INet4Address.ct"
-//#include "INet4Address.cti"
+#include "INet4Address.cti"
#endif
\f
projects / senf.git / blobdiff