qwindowsasfpicture.cpp

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// Copyright (C) 2026 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

// Qt-Security score:critical reason:data-parser

#include "qwindowsasfpicture_p.h"

QT_BEGIN_NAMESPACE

QImage imageFromAsfFlatPicture(const BLOB &blob)

    if (blob.cbSize <= sizeof(QMM_ASF_FLAT_PICTURE))

        return {};

    const auto *pic = reinterpret_cast<const QMM_ASF_FLAT_PICTURE *>(blob.pBlobData);

    const BYTE *p = blob.pBlobData + sizeof(QMM_ASF_FLAT_PICTURE);

    const BYTE *end = blob.pBlobData + blob.cbSize;

    // Skip MIME type (null-terminated UTF-16)

    while (p + 1 < end && (p[0] || p[1]))

        p += 2;

    p += 2;

    if (p > end)

        return {};

    // Skip description (null-terminated UTF-16)

    while (p + 1 < end && (p[0] || p[1]))

        p += 2;

    p += 2;

    if (p > end || pic->dwDataLen > static_cast<DWORD>(end - p))

        return {};

    QImage img;

    img.loadFromData(p, pic->dwDataLen);

    return img;

QT_END_NAMESPACE