diff options
Diffstat (limited to 'source/Irrlicht/CTarReader.cpp')
| -rw-r--r-- | source/Irrlicht/CTarReader.cpp | 256 |
1 files changed, 0 insertions, 256 deletions
diff --git a/source/Irrlicht/CTarReader.cpp b/source/Irrlicht/CTarReader.cpp deleted file mode 100644 index 6fd5ea7..0000000 --- a/source/Irrlicht/CTarReader.cpp +++ /dev/null @@ -1,256 +0,0 @@ -// Copyright (C) 2009-2012 Gaz Davidson
-// This file is part of the "Irrlicht Engine".
-// For conditions of distribution and use, see copyright notice in irrlicht.h
-
-#include "CTarReader.h"
-
-#ifdef __IRR_COMPILE_WITH_TAR_ARCHIVE_LOADER_
-
-#include "CFileList.h"
-#include "CLimitReadFile.h"
-#include "os.h"
-#include "coreutil.h"
-#include "errno.h"
-
-namespace irr
-{
-namespace io
-{
-
-//! Constructor
-CArchiveLoaderTAR::CArchiveLoaderTAR(io::IFileSystem* fs)
-: FileSystem(fs)
-{
- #ifdef _DEBUG
- setDebugName("CArchiveLoaderTAR");
- #endif
-}
-
-
-//! returns true if the file maybe is able to be loaded by this class
-bool CArchiveLoaderTAR::isALoadableFileFormat(const io::path& filename) const
-{
- return core::hasFileExtension(filename, "tar");
-}
-
-//! Check to see if the loader can create archives of this type.
-bool CArchiveLoaderTAR::isALoadableFileFormat(E_FILE_ARCHIVE_TYPE fileType) const
-{
- return fileType == EFAT_TAR;
-}
-
-//! Creates an archive from the filename
-/** \param file File handle to check.
-\return Pointer to newly created archive, or 0 upon error. */
-IFileArchive* CArchiveLoaderTAR::createArchive(const io::path& filename, bool ignoreCase, bool ignorePaths) const
-{
- IFileArchive *archive = 0;
- io::IReadFile* file = FileSystem->createAndOpenFile(filename);
-
- if (file)
- {
- archive = createArchive(file, ignoreCase, ignorePaths);
- file->drop();
- }
-
- return archive;
-}
-
-
-//! creates/loads an archive from the file.
-//! \return Pointer to the created archive. Returns 0 if loading failed.
-IFileArchive* CArchiveLoaderTAR::createArchive(io::IReadFile* file, bool ignoreCase, bool ignorePaths) const
-{
- IFileArchive *archive = 0;
- if (file)
- {
- file->seek(0);
- archive = new CTarReader(file, ignoreCase, ignorePaths);
- }
- return archive;
-}
-
-//! Check if the file might be loaded by this class
-/** Check might look into the file.
-\param file File handle to check.
-\return True if file seems to be loadable. */
-bool CArchiveLoaderTAR::isALoadableFileFormat(io::IReadFile* file) const
-{
- // TAR files consist of blocks of 512 bytes
- // if it isn't a multiple of 512 then it's not a TAR file.
- if (file->getSize() % 512)
- return false;
-
- file->seek(0);
-
- // read header of first file
- STarHeader fHead;
- file->read(&fHead, sizeof(STarHeader));
-
- u32 checksum = 0;
- sscanf(fHead.Checksum, "%o", &checksum);
-
- // verify checksum
-
- // some old TAR writers assume that chars are signed, others assume unsigned
- // USTAR archives have a longer header, old TAR archives end after linkname
-
- u32 checksum1=0;
- s32 checksum2=0;
-
- // remember to blank the checksum field!
- memset(fHead.Checksum, ' ', 8);
-
- // old header
- for (u8* p = (u8*)(&fHead); p < (u8*)(&fHead.Magic[0]); ++p)
- {
- checksum1 += *p;
- checksum2 += c8(*p);
- }
-
- if (!strncmp(fHead.Magic, "ustar", 5))
- {
- for (u8* p = (u8*)(&fHead.Magic[0]); p < (u8*)(&fHead) + sizeof(fHead); ++p)
- {
- checksum1 += *p;
- checksum2 += c8(*p);
- }
- }
- return checksum1 == checksum || checksum2 == (s32)checksum;
-}
-
-/*
- TAR Archive
-*/
-CTarReader::CTarReader(IReadFile* file, bool ignoreCase, bool ignorePaths)
- : CFileList((file ? file->getFileName() : io::path("")), ignoreCase, ignorePaths), File(file)
-{
- #ifdef _DEBUG
- setDebugName("CTarReader");
- #endif
-
- if (File)
- {
- File->grab();
-
- // fill the file list
- populateFileList();
-
- sort();
- }
-}
-
-
-CTarReader::~CTarReader()
-{
- if (File)
- File->drop();
-}
-
-
-const IFileList* CTarReader::getFileList() const
-{
- return this;
-}
-
-
-u32 CTarReader::populateFileList()
-{
- STarHeader fHead;
- Files.clear();
-
- u32 pos = 0;
- while ( s32(pos + sizeof(STarHeader)) < File->getSize())
- {
- // seek to next file header
- File->seek(pos);
-
- // read the header
- File->read(&fHead, sizeof(fHead));
-
- // only add standard files for now
- if (fHead.Link == ETLI_REGULAR_FILE || ETLI_REGULAR_FILE_OLD)
- {
- io::path fullPath = "";
- fullPath.reserve(255);
-
- // USTAR archives have a filename prefix
- // may not be null terminated, copy carefully!
- if (!strncmp(fHead.Magic, "ustar", 5))
- {
- c8* np = fHead.FileNamePrefix;
- while(*np && (np - fHead.FileNamePrefix) < 155)
- fullPath.append(*np);
- np++;
- }
-
- // append the file name
- c8* np = fHead.FileName;
- while(*np && (np - fHead.FileName) < 100)
- {
- fullPath.append(*np);
- np++;
- }
-
- // get size
- core::stringc sSize = "";
- sSize.reserve(12);
- np = fHead.Size;
- while(*np && (np - fHead.Size) < 12)
- {
- sSize.append(*np);
- np++;
- }
-
- u32 size = strtoul(sSize.c_str(), NULL, 8);
-
- if (errno == ERANGE)
- os::Printer::log("File too large", fullPath, ELL_WARNING);
-
- // save start position
- u32 offset = pos + 512;
-
- // move to next file header block
- pos = offset + (size / 512) * 512 + ((size % 512) ? 512 : 0);
-
- // add file to list
- addItem(fullPath, offset, size, false );
- }
- else
- {
- // todo: ETLI_DIRECTORY, ETLI_LINK_TO_ARCHIVED_FILE
-
- // move to next block
- pos += 512;
- }
-
- }
-
- return Files.size();
-}
-
-//! opens a file by file name
-IReadFile* CTarReader::createAndOpenFile(const io::path& filename)
-{
- const s32 index = findFile(filename, false);
-
- if (index != -1)
- return createAndOpenFile(index);
-
- return 0;
-}
-
-//! opens a file by index
-IReadFile* CTarReader::createAndOpenFile(u32 index)
-{
- if (index >= Files.size() )
- return 0;
-
- const SFileListEntry &entry = Files[index];
- return createLimitReadFile( entry.FullName, File, entry.Offset, entry.Size );
-}
-
-} // end namespace io
-} // end namespace irr
-
-#endif // __IRR_COMPILE_WITH_TAR_ARCHIVE_LOADER_
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