Files
easy7zip/CPP/7zip/Archive/GZip/GZipOut.cpp
Igor Pavlov a145bfc7cf 4.45 beta
2016-05-28 00:15:50 +01:00

70 lines
1.4 KiB
C++
Executable File

// Archive/GZipOut.cpp
#include "StdAfx.h"
#include "GZipOut.h"
#include "Windows/Defs.h"
#include "../../Common/StreamUtils.h"
namespace NArchive {
namespace NGZip {
HRESULT COutArchive::WriteBytes(const void *buffer, UInt32 size)
{
UInt32 processedSize;
RINOK(WriteStream(m_Stream, buffer, size, &processedSize));
if(processedSize != size)
return E_FAIL;
return S_OK;
}
HRESULT COutArchive::WriteByte(Byte value)
{
return WriteBytes(&value, 1);
}
HRESULT COutArchive::WriteUInt16(UInt16 value)
{
for (int i = 0; i < 2; i++)
{
RINOK(WriteByte((Byte)value));
value >>= 8;
}
return S_OK;
}
HRESULT COutArchive::WriteUInt32(UInt32 value)
{
for (int i = 0; i < 4; i++)
{
RINOK(WriteByte((Byte)value));
value >>= 8;
}
return S_OK;
}
HRESULT COutArchive::WriteHeader(const CItem &item)
{
RINOK(WriteUInt16(kSignature));
RINOK(WriteByte(item.CompressionMethod));
RINOK(WriteByte((Byte)(item.Flags & NFileHeader::NFlags::kNameIsPresent)));
RINOK(WriteUInt32(item.Time));
RINOK(WriteByte(item.ExtraFlags));
RINOK(WriteByte(item.HostOS));
if (item.NameIsPresent())
{
RINOK(WriteBytes((const char *)item.Name, item.Name.Length()));
RINOK(WriteByte(0));
}
return S_OK;
}
HRESULT COutArchive::WritePostHeader(const CItem &item)
{
RINOK(WriteUInt32(item.FileCRC));
return WriteUInt32(item.UnPackSize32);
}
}}