You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
197 lines
6.4 KiB
197 lines
6.4 KiB
/* -*- C++ -*-
|
|
* Copyright (C) 2003 Thiago Macieira <thiago.macieira@kdemail.net>
|
|
*
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included
|
|
* in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef KREVERSERESOLVER_H
|
|
#define KREVERSERESOLVER_H
|
|
|
|
//////////////////
|
|
// Needed includes
|
|
#include <tqobject.h>
|
|
#include <tqstring.h>
|
|
|
|
#include "ksocketaddress.h"
|
|
|
|
namespace KNetwork {
|
|
|
|
class KReverseResolverPrivate;
|
|
/** @class KReverseResolver kreverseresolver.h kreverseresolver.h
|
|
* @brief Run a reverse-resolution on a socket address.
|
|
*
|
|
* This class is provided as a counterpart to KResolver in such a way
|
|
* as it produces a reverse resolution: it resolves a socket address
|
|
* from its binary representations into a textual representation.
|
|
*
|
|
* Most users will use the static functions @ref resolve, which work
|
|
* both synchronously (blocking) and asynchronously (non-blocking).
|
|
*
|
|
* @author Thiago Macieira <thiago.macieira@kdemail.net>
|
|
*/
|
|
class TDECORE_EXPORT KReverseResolver: public TQObject
|
|
{
|
|
Q_OBJECT
|
|
TQ_OBJECT
|
|
|
|
public:
|
|
/**
|
|
* Flags for the reverse resolution.
|
|
*
|
|
* These flags are used by the reverse resolution functions for
|
|
* setting resolution parameters. The possible values are:
|
|
* @li NumericHost: don't try to resolve the host address to a text form.
|
|
* Instead, convert the address to its numeric textual representation.
|
|
* @li NumericService: the same as NumericHost, but for the service name
|
|
* @li NodeNameOnly: returns the node name only (i.e., not the Fully
|
|
* Qualified Domain Name)
|
|
* @li Datagram: in case of ambiguity in the service name, prefer the
|
|
* name associated with the datagram protocol
|
|
* @li NumericScope: for those addresses which have the concept of scope,
|
|
* resolve using the numeric value instead of the proper scope name.
|
|
* @li ResolutionRequired: normally, when resolving, if the name resolution
|
|
* fails, the process normally converts the numeric address into its
|
|
* presentation forms. This flag causes the function to return
|
|
* with error instead.
|
|
*/
|
|
enum Flags
|
|
{
|
|
NumericHost = 0x01,
|
|
NumericService = 0x02,
|
|
NodeNameOnly = 0x04,
|
|
Datagram = 0x08,
|
|
NumericScope = 0x10,
|
|
ResolutionRequired = 0x20
|
|
};
|
|
|
|
/**
|
|
* Constructs this object to resolve the given socket address.
|
|
*
|
|
* @param addr the address to resolve
|
|
* @param flags the flags to use, see @ref Flags
|
|
*/
|
|
KReverseResolver(const KSocketAddress& addr, int flags = 0,
|
|
TQObject * = 0L, const char * = 0L);
|
|
|
|
/**
|
|
* Destructor.
|
|
*/
|
|
virtual ~KReverseResolver();
|
|
|
|
/**
|
|
* This function returns 'true' if the processing is still running.
|
|
*/
|
|
bool isRunning() const;
|
|
|
|
/**
|
|
* This function returns true if the processing has finished with
|
|
* success, false if it's still running or failed.
|
|
*/
|
|
bool success() const;
|
|
|
|
/**
|
|
* This function returns true if the processing has finished with
|
|
* failure, false if it's still running or succeeded.
|
|
*/
|
|
bool failure() const;
|
|
|
|
/**
|
|
* Returns the resolved node name, if the resolution has finished
|
|
* successfully, or TQString::null otherwise.
|
|
*/
|
|
TQString node() const;
|
|
|
|
/**
|
|
* Returns the resolved service name, if the resolution has finished
|
|
* successfully, or TQString::null otherwise.
|
|
*/
|
|
TQString service() const;
|
|
|
|
/**
|
|
* Returns the socket address which was subject to resolution.
|
|
*/
|
|
const KSocketAddress& address() const;
|
|
|
|
/**
|
|
* Starts the resolution. This function returns 'true'
|
|
* if the resolution has started successfully.
|
|
*/
|
|
bool start();
|
|
|
|
/**
|
|
* Overrides event handling
|
|
*/
|
|
virtual bool event(TQEvent* );
|
|
|
|
signals:
|
|
/**
|
|
* This signal is emitted when the resolution has finished.
|
|
*
|
|
* @param obj this class, which contains the results
|
|
*/
|
|
void finished(const KReverseResolver& obj);
|
|
|
|
public:
|
|
/**
|
|
* Resolves a socket address to its textual representation
|
|
*
|
|
* FIXME!! How can we do this in a non-blocking manner!?
|
|
*
|
|
* This function is used to resolve a socket address from its
|
|
* binary representation to a textual form, even if numeric only.
|
|
*
|
|
* @param addr the socket address to be resolved
|
|
* @param node the TQString where we will store the resolved node
|
|
* @param serv the TQString where we will store the resolved service
|
|
* @param flags flags to be used for this resolution.
|
|
* @return true if the resolution succeeded, false if not
|
|
* @see ReverseFlags for the possible values for @p flags
|
|
*/
|
|
static bool resolve(const KSocketAddress& addr, TQString& node,
|
|
TQString& serv, int flags = 0);
|
|
|
|
/**
|
|
* Resolves a socket address to its textual representation
|
|
*
|
|
* FIXME!! How can we do this in a non-blocking manner!?
|
|
*
|
|
* This function behaves just like the above one, except it takes
|
|
* a sockaddr structure and its size as parameters.
|
|
*
|
|
* @param sa the sockaddr structure containing the address to be resolved
|
|
* @param salen the length of the sockaddr structure
|
|
* @param node the TQString where we will store the resolved node
|
|
* @param serv the TQString where we will store the resolved service
|
|
* @param flags flags to be used for this resolution.
|
|
* @return true if the resolution succeeded, false if not
|
|
* @see ReverseFlags for the possible values for @p flags
|
|
*/
|
|
static bool resolve(const struct sockaddr* sa, TQ_UINT16 salen,
|
|
TQString& node, TQString& serv, int flags = 0);
|
|
|
|
private:
|
|
KReverseResolverPrivate* d;
|
|
};
|
|
|
|
} // namespace KNetwork
|
|
|
|
#endif
|