115 lines
2.6 KiB
C++
115 lines
2.6 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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// $Workfile: ZipFile.cpp $
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// $Archive: /ZipArchive_STL/ZipFile.cpp $
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// $Date$ $Author$
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////////////////////////////////////////////////////////////////////////////////
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// This source file is part of the ZipArchive library source distribution and
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// is Copyright 2000-2003 by Tadeusz Dracz (http://www.artpol-software.com/)
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// For the licensing details see the file License.txt
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////////////////////////////////////////////////////////////////////////////////
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#include "stdafx.h"
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#include "zipfile.h"
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#include "zipexception.h"
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#include "zipplatform.h"
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#include <fcntl.h>
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//////////////////////////////////////////////////////////////////////
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// Construction/Destruction
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//////////////////////////////////////////////////////////////////////
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CZipFile::CZipFile()
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{
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m_hFile = -1;
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}
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void CZipFile::ThrowError() const
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{
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CZipException::Throw(errno, m_szFileName);
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}
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ZIP_ULONGLONG CZipFile::GetLength() const
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{
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// cannot use Seek here, Seek is not const
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long lLen, lCur;
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lCur = lseek(m_hFile, 0, current);
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if (lCur == -1)
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ThrowError();
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lLen = lseek(m_hFile, 0, end);
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// first get back
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lseek(m_hFile, lCur, begin);
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if (lLen == -1)
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ThrowError();
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return lLen;
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}
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bool CZipFile::Open(LPCTSTR lpszFileName, UINT openFlags, bool bThrow)
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{
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if (!IsClosed())
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Close();
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#ifndef __GNUC__
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UINT iNewFlags = O_BINARY;
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#else
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UINT iNewFlags = 0;
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#endif
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bool bReadOnly = false;
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if (openFlags & CZipFile::modeCreate)
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iNewFlags |= O_CREAT;
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if ((openFlags & CZipFile::modeReadWrite) == CZipFile::modeReadWrite)
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iNewFlags |= O_RDWR;
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else if (openFlags & CZipFile::modeRead)
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{
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// O_RDONLY is defined as 0
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bReadOnly = true;
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iNewFlags |= O_RDONLY;
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}
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else if (openFlags & CZipFile::modeWrite)
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iNewFlags |= O_WRONLY;
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if (!(openFlags & CZipFile::modeNoTruncate) && !bReadOnly)
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iNewFlags |= O_TRUNC;
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m_hFile = ZipPlatform::OpenFile(lpszFileName, iNewFlags, openFlags & 0x1C);
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if (m_hFile == -1)
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if (bThrow)
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ThrowError();
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else
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return false;
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m_szFileName = lpszFileName;
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return true;
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}
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void CZipFile::SetLength(ZIP_ULONGLONG nNewLen)
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{
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ZipPlatform::TruncateFile(m_hFile, (DWORD)nNewLen);
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}
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void CZipFile::Flush()
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{
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if (!ZipPlatform::FlushFile(m_hFile))
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ThrowError();
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}
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CZipFile::operator HANDLE()
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{
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int fh = ZipPlatform::GetFileSystemHandle(m_hFile);
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if (fh == -1)
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ThrowError();
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return (HANDLE)fh;
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}
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