102 lines
2.1 KiB
C++
102 lines
2.1 KiB
C++
// ZipFile.cpp: implementation of the ZipFiles class.
|
|
// Part of the ZipArchive library
|
|
//
|
|
// Copyright (C) 2000 - 2001 Tadeusz Dracz.
|
|
// This program is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU General Public License
|
|
// as published by the Free Software Foundation; either version 2
|
|
// of the License, or (at your option) any later version.
|
|
//
|
|
// For the licensing details see the file License.txt
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include "stdafx.h"
|
|
#include "zipfile.h"
|
|
#include "zipexception.h"
|
|
#include "zipplatform.h"
|
|
|
|
#include <fcntl.h>
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
// Construction/Destruction
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
CZipFile::CZipFile()
|
|
{
|
|
m_hFile = -1;
|
|
}
|
|
|
|
|
|
|
|
|
|
void CZipFile::ThrowError()
|
|
{
|
|
CZipException::Throw(errno, m_szFileName);
|
|
}
|
|
|
|
|
|
DWORD CZipFile::GetLength()
|
|
{
|
|
|
|
DWORD dwLen, dwCur;
|
|
dwCur = Seek(0L, current);
|
|
dwLen = Seek(0L, end);
|
|
Seek(dwCur, begin);
|
|
return dwLen;
|
|
|
|
}
|
|
|
|
|
|
bool CZipFile::Open(LPCTSTR lpszFileName, UINT openFlags, bool bThrow)
|
|
{
|
|
if (!IsClosed())
|
|
Close();
|
|
UINT iNewFlags = O_BINARY;
|
|
bool bReadOnly = false;
|
|
if (openFlags & CZipFile::modeCreate)
|
|
iNewFlags |= O_CREAT;
|
|
if ((openFlags & CZipFile::modeReadWrite) == CZipFile::modeReadWrite)
|
|
iNewFlags |= O_RDWR;
|
|
else if (openFlags & CZipFile::modeRead)
|
|
{
|
|
// O_RDONLY is defined as 0
|
|
bReadOnly = true;
|
|
iNewFlags |= O_RDONLY;
|
|
}
|
|
else if (openFlags & CZipFile::modeWrite)
|
|
iNewFlags |= O_WRONLY;
|
|
|
|
if (!(openFlags & CZipFile::modeNoTruncate) && !bReadOnly)
|
|
iNewFlags |= O_TRUNC;
|
|
|
|
m_hFile = ZipPlatform::OpenFile(lpszFileName, iNewFlags, openFlags & 0x1C);
|
|
if (m_hFile == -1)
|
|
if (bThrow)
|
|
ThrowError();
|
|
else
|
|
return false;
|
|
m_szFileName = lpszFileName;
|
|
return true;
|
|
}
|
|
|
|
|
|
void CZipFile::SetLength(long nNewLen)
|
|
{
|
|
ZipPlatform::TruncateFile(m_hFile, nNewLen);
|
|
}
|
|
|
|
|
|
void CZipFile::Flush()
|
|
{
|
|
if (!ZipPlatform::FlushFile(m_hFile))
|
|
ThrowError();
|
|
}
|
|
|
|
CZipFile::operator HFILE()
|
|
{
|
|
HFILE hf = ZipPlatform::GetFileSystemHandle(m_hFile);
|
|
if (hf == -1)
|
|
ThrowError();
|
|
return hf;
|
|
}
|