I can now read the entire directory structure.

README.md

@@ -20,10 +20,15 @@ Thanks also to [distri's squashfs library](https://github.com/distr1/distri/tree
 
 * Give a list of files
     * In string & io.FileStat (?) form
+* Figure out fragments
 * Extracting files
     * from inodes.
     * from path.
     * from file info.
 * Reading the UID, GUID, Xatt, Compression Options, Export, and Fragment tables.
 * Implement other compression types (Should be relatively easy)
-* Squashing
+* Squashing
+
+# Where I'm at.
+
+* I CAN READ THE ENTIRE DIRECTORY!!!!! (This is a big ol' step)

blockreader.go

@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"encoding/binary"
 	"errors"
-	"fmt"
 	"io"
 )
 
@@ -90,7 +89,6 @@ func (br *BlockReader) readNextDataBlock() error {
 }
 
 func (br *BlockReader) Read(p []byte) (int, error) {
-	fmt.Println("reading", len(p), "bytes")
 	if br.readOffset+len(p) < len(br.data) {
 		for i := 0; i < len(p); i++ {
 			p[i] = br.data[br.readOffset+i]
@@ -111,7 +109,6 @@ func (br *BlockReader) Read(p []byte) (int, error) {
 			return read, err
 		}
 		for ; read < len(p); read++ {
-			// fmt.Println("Reading...")
 			if br.readOffset+read < len(br.data) {
 				p[read] = br.data[br.readOffset+read]
 			} else {

internal/directory/directory.go

@@ -23,8 +23,9 @@ type EntryInit struct {
 
 //Entry is an entry in a directory.
 type Entry struct {
-	Init EntryInit
-	Name string
+	Init   EntryInit
+	Name   string
+	Header *Header
 }
 
 //NewEntry creates a new directory entry
@@ -85,6 +86,7 @@ func NewDirectory(base io.Reader, size uint16) (*Directory, error) {
 			if err != nil {
 				return nil, err
 			}
+			ent.Header = &dir.Headers[len(dir.Headers)-1]
 			dir.Entries = append(dir.Entries, ent)
 		}
 	}

internal/inode/inode.go

@@ -60,11 +60,11 @@ type ExtendedDirectory struct {
 }
 
 //NewExtendedDirectory creates a new ExtendedDirectory
-func NewExtendedDirectory(rdr io.Reader) (*ExtendedDirectory, error) {
+func NewExtendedDirectory(rdr io.Reader) (ExtendedDirectory, error) {
 	var inode ExtendedDirectory
 	err := binary.Read(rdr, binary.LittleEndian, &inode.Init)
 	if err != nil {
-		return &inode, err
+		return inode, err
 	}
 	if inode.Init.IndexCount > 0 {
 		inode.Indexes = make([]DirectoryIndex, inode.Init.IndexCount)
@@ -72,11 +72,11 @@ func NewExtendedDirectory(rdr io.Reader) (*ExtendedDirectory, error) {
 			inode.Indexes[i], err = NewDirectoryIndex(rdr)
 			if err != nil {
 				fmt.Println("Error while reading Directory Index ", i)
-				return &inode, err
+				return inode, err
 			}
 		}
 	}
-	return &inode, err
+	return inode, err
 }
 
 //DirectoryIndexInit holds the values that can be easily decoded
@@ -116,22 +116,24 @@ type BasicFileInit struct {
 type BasicFile struct {
 	Init       BasicFileInit
 	BlockSizes []uint32
+	Fragmented bool
 }
 
 //NewBasicFile creates a new BasicFile
-func NewBasicFile(rdr io.Reader, blockSize uint32) (*BasicFile, error) {
+func NewBasicFile(rdr io.Reader, blockSize uint32) (BasicFile, error) {
 	var inode BasicFile
 	err := binary.Read(rdr, binary.LittleEndian, &inode.Init)
 	if err != nil {
-		return &inode, err
+		return inode, err
 	}
+	inode.Fragmented = inode.Init.FragmentIndex != 0xFFFFFFFF
 	blocks := inode.Init.Size / blockSize
 	if inode.Init.Size%blockSize > 0 {
 		blocks++
 	}
 	inode.BlockSizes = make([]uint32, blocks, blocks)
 	err = binary.Read(rdr, binary.LittleEndian, &inode.BlockSizes)
-	return &inode, err
+	return inode, err
 }
 
 //ExtendedFileInit is the information that can be directly decoded

squashfsreader.go

@@ -47,6 +47,35 @@ func NewSquashfsReader(r io.ReaderAt) (*Reader, error) {
 	return &rdr, nil
 }
 
+func (r *Reader) readDir(i *inode.Inode) (paths []string, err error) {
+	dir, err := r.ReadDirFromInode(*i)
+	if err != nil {
+		return
+	}
+	for _, entry := range dir.Entries {
+		if entry.Init.Type == inode.BasicDirectoryType {
+			paths = append(paths)
+			i, err = r.GetInodeFromEntry(&entry)
+			if err != nil {
+				return
+			}
+			var subPaths []string
+			subPaths, err = r.readDir(i)
+			if err != nil {
+				return
+			}
+			for pathI := range subPaths {
+				subPaths[pathI] = entry.Name + "/" + subPaths[pathI]
+			}
+			paths = append(paths, entry.Name+"/")
+			paths = append(paths, subPaths...)
+		} else {
+			paths = append(paths, entry.Name)
+		}
+	}
+	return
+}
+
 func (r *Reader) readDirTable() error {
 	inoderdr, err := r.NewBlockReaderFromInodeRef(r.super.RootInodeRef)
 	if err != nil {
@@ -56,12 +85,12 @@ func (r *Reader) readDirTable() error {
 	if err != nil {
 		return err
 	}
-	dir, err := r.ReadDirFromInode(i)
+	paths, err := r.readDir(&i)
 	if err != nil {
 		return err
 	}
-	for _, entry := range dir.Entries {
-		fmt.Println(entry.Name)
+	for _, path := range paths {
+		fmt.Println(path)
 	}
 	return nil
 }

utils.go

@@ -49,3 +49,19 @@ func (r *Reader) ReadDirFromInode(i inode.Inode) (*directory.Directory, error) {
 	}
 	return dir, nil
 }
+
+func (r *Reader) GetInodeFromEntry(en *directory.Entry) (*inode.Inode, error) {
+	br, err := r.NewBlockReader(int64(r.super.InodeTableStart + uint64(en.Header.InodeOffset)))
+	if err != nil {
+		return nil, err
+	}
+	_, err = br.Seek(int64(en.Init.Offset), io.SeekStart)
+	if err != nil {
+		return nil, err
+	}
+	i, err := inode.ProcessInode(br, r.super.BlockSize)
+	if err != nil {
+		return nil, err
+	}
+	return &i, nil
+}