source: trunk/src/network/ssl/qsslcipher.cpp@ 807

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/*!
    \class QSslCipher
    \brief The QSslCipher class represents an SSL cryptographic cipher.
    \since 4.3

    \reentrant
    \ingroup network
    \ingroup ssl
    \inmodule QtNetwork

    QSslCipher stores information about one cryptographic cipher. It
    is most commonly used with QSslSocket, either for configuring
    which ciphers the socket can use, or for displaying the socket's
    ciphers to the user.

    \sa QSslSocket, QSslKey
*/

#include "qsslcipher.h"
#include "qsslcipher_p.h"
#include "qsslsocket.h"

#ifndef QT_NO_DEBUG_STREAM
#include <QtCore/qdebug.h>
#endif

QT_BEGIN_NAMESPACE

/*!
    Constructs an empty QSslCipher object.
*/
QSslCipher::QSslCipher()
    : d(new QSslCipherPrivate)
{
}

/*!
    Constructs a QSslCipher object for the cipher determined by \a
    name and \a protocol. The constructor accepts only supported
    ciphers (i.e., the \a name and \a protocol must identify a cipher
    in the list of ciphers returned by
    QSslSocket::supportedCiphers()).

    You can call isNull() after construction to check if \a name and
    \a protocol correctly identified a supported cipher.
*/
QSslCipher::QSslCipher(const QString &name, QSsl::SslProtocol protocol)
    : d(new QSslCipherPrivate)
{
    foreach (const QSslCipher &cipher, QSslSocket::supportedCiphers()) {
        if (cipher.name() == name && cipher.protocol() == protocol) {
            *this = cipher;
            return;
        }
    }
}

/*!
    Constructs an identical copy of the \a other cipher.
*/
QSslCipher::QSslCipher(const QSslCipher &other)
    : d(new QSslCipherPrivate)
{
    *d.data() = *other.d.data();
}

/*!
    Destroys the QSslCipher object.
*/
QSslCipher::~QSslCipher()
{
}

/*!
    Copies the contents of \a other into this cipher, making the two
    ciphers identical.
*/
QSslCipher &QSslCipher::operator=(const QSslCipher &other)
{
    *d.data() = *other.d.data();
    return *this;
}

/*!
    Returns true if this cipher is the same as \a other; otherwise,
    false is returned.
*/
bool QSslCipher::operator==(const QSslCipher &other) const
{
    return d->name == other.d->name && d->protocol == other.d->protocol;
}

/*!
    \fn bool QSslCipher::operator!=(const QSslCipher &other) const

    Returns true if this cipher is not the same as \a other;
    otherwise, false is returned.
*/

/*!
    Returns true if this is a null cipher; otherwise returns false.
*/
bool QSslCipher::isNull() const
{
    return d->isNull;
}

/*!
    Returns the name of the cipher, or an empty QString if this is a null