plugins/iso/kisofile.cpp

0001 /*
0002     SPDX-FileCopyrightText: 2002 Szombathelyi György <gyurco@users.sourceforge.net>
0003     SPDX-FileCopyrightText: 2004-2022 Krusader Krew <https://krusader.org>
0004
0005     SPDX-License-Identifier: GPL-2.0-or-later
0006 */
0007
0008 #include "kisofile.h"
0009
0010 KIsoFile::KIsoFile(KArchive *archive,
0011                    const QString &name,
0012                    int access,
0013                    time_t date,
0014                    time_t adate,
0015                    time_t cdate,
0016                    const QString &user,
0017                    const QString &group,
0018                    const QString &symlink,
0019                    long long pos,
0020                    long long size)
0021     : KArchiveFile(archive, name, access, QDateTime::fromTime_t(static_cast<uint>(date)), user, group, symlink, pos, size)
0022 {
0023     m_adate = adate;
0024     m_cdate = cdate;
0025     m_algo[0] = 0;
0026     m_algo[1] = 0;
0027     m_parms[0] = 0;
0028     m_parms[1] = 0;
0029     m_realsize = 0;
0030 }
0031
0032 KIsoFile::~KIsoFile() = default;
0033
0034 void KIsoFile::setZF(char algo[2], char parms[2], long long realsize)
0035 {
0036     m_algo[0] = algo[0];
0037     m_algo[1] = algo[1];
0038     m_parms[0] = parms[0];
0039     m_parms[1] = parms[1];
0040     m_realsize = realsize;
0041 }
0042
0043 QByteArray KIsoFile::dataAt(long long pos, long long count) const
0044 {
0045     QByteArray r;
0046     qint64 rlen;
0047
0048     if (archive()->device()->seek(position() + pos)) {
0049         r.resize(static_cast<int>(((pos + count) < size()) ? count : size() - pos));
0050         if (r.size()) {
0051             rlen = archive()->device()->read(r.data(), r.size());
0052             if (rlen == -1)
0053                 r.resize(0);
0054             else if (rlen != (int)r.size())
0055                 r.resize(static_cast<int>(rlen));
0056         }
0057     }
0058
0059     return r;
0060 }