diff options
Diffstat (limited to 'CPP/7zip/Archive/GZip/GZipOut.cpp')
-rwxr-xr-x | CPP/7zip/Archive/GZip/GZipOut.cpp | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/CPP/7zip/Archive/GZip/GZipOut.cpp b/CPP/7zip/Archive/GZip/GZipOut.cpp new file mode 100755 index 00000000..afa8a931 --- /dev/null +++ b/CPP/7zip/Archive/GZip/GZipOut.cpp @@ -0,0 +1,69 @@ +// Archive/GZipOut.cpp + +#include "StdAfx.h" + +#include "GZipOut.h" +#include "Common/CRC.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); +} + +}} |