Exemple #1
0
func (decoderData *decoderData) addFile(header *tar.Header,
	parent *filesystem.Directory, name string) error {
	var newInode filesystem.Inode
	if header.Typeflag == tar.TypeChar {
		newInode.Mode = filesystem.FileMode((header.Mode & ^syscall.S_IFMT) |
			syscall.S_IFCHR)
	} else if header.Typeflag == tar.TypeBlock {
		newInode.Mode = filesystem.FileMode((header.Mode & ^syscall.S_IFMT) |
			syscall.S_IFBLK)
	} else if header.Typeflag == tar.TypeFifo {
		newInode.Mode = filesystem.FileMode((header.Mode & ^syscall.S_IFMT) |
			syscall.S_IFIFO)
	} else {
		return errors.New(fmt.Sprintf("unsupported type: %v", header.Typeflag))
	}
	newInode.Uid = uint32(header.Uid)
	newInode.Gid = uint32(header.Gid)
	newInode.MtimeNanoSeconds = int32(header.ModTime.Nanosecond())
	newInode.MtimeSeconds = header.ModTime.Unix()
	if header.Devminor > 255 {
		return errors.New(fmt.Sprintf("minor device number: %d too large",
			header.Devminor))
	}
	newInode.Rdev = uint64(header.Devmajor<<8 | header.Devminor)
	decoderData.inodeTable[header.Name] = decoderData.nextInodeNumber
	decoderData.fileSystem.InodeTable[decoderData.nextInodeNumber] =
		&newInode
	var newEntry filesystem.File
	newEntry.Name = name
	newEntry.InodeNumber = decoderData.nextInodeNumber
	parent.FileList = append(parent.FileList, &newEntry)
	decoderData.nextInodeNumber++
	return nil
}
Exemple #2
0
func addFile(directory *filesystem.Directory, fileSystem, oldFS *FileSystem,
	name string, directoryPathName string, stat *syscall.Stat_t) error {
	inode, isNewInode := fileSystem.getInode(stat)
	var file filesystem.File
	file.Name = name
	file.InodeNumber = stat.Ino
	file.SetInode(inode)
	if isNewInode {
		err := scanFile(&file, fileSystem, directoryPathName)
		if err != nil {
			return err
		}
		if oldFS != nil && oldFS.InodeTable != nil {
			if oldInode, found := oldFS.InodeTable[stat.Ino]; found {
				if filesystem.CompareInodes(inode, oldInode, nil) {
					inode = oldInode
					file.SetInode(inode)
					fileSystem.InodeTable[stat.Ino] = inode
				}
			}
		}
	}
	directory.FileList = append(directory.FileList, &file)
	return nil
}
Exemple #3
0
func (decoderData *decoderData) addHardlink(header *tar.Header,
	parent *filesystem.Directory, name string) error {
	header.Linkname = normaliseFilename(header.Linkname)
	if inum, ok := decoderData.regularInodeTable[header.Linkname]; ok {
		var newEntry filesystem.RegularFile
		newEntry.Name = name
		newEntry.InodeNumber = inum
		parent.RegularFileList = append(parent.RegularFileList, &newEntry)
	} else if inum, ok := decoderData.symlinkInodeTable[header.Linkname]; ok {
		var newEntry filesystem.Symlink
		newEntry.Name = name
		newEntry.InodeNumber = inum
		parent.SymlinkList = append(parent.SymlinkList, &newEntry)
	} else if inum, ok := decoderData.inodeTable[header.Linkname]; ok {
		var newEntry filesystem.File
		newEntry.Name = name
		newEntry.InodeNumber = inum
		parent.FileList = append(parent.FileList, &newEntry)
	} else {
		return errors.New(fmt.Sprintf("missing hardlink target: %s",
			header.Linkname))
	}
	return nil
}