Caleb Gardner
63 lines
1.2 KiB
Go
63 lines
1.2 KiB
Go
package inode
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import (
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"encoding/binary"
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"io"
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"math"
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)
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type fileInit struct {
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BlockStart uint32
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FragInd uint32
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FragOffset uint32
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Size uint32
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}
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type File struct {
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fileInit
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BlockSizes []uint32
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}
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type eFileInit struct {
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BlockStart uint64
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Size uint64
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Sparse uint64
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LinkCount uint32
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FragInd uint32
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FragOffset uint32
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XattrInd uint32
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}
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type EFile struct {
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eFileInit
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BlockSizes []uint32
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}
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func ReadFile(r io.Reader, blockSize uint32) (f File, err error) {
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err = binary.Read(r, binary.LittleEndian, &f.fileInit)
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if err != nil {
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return
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}
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toRead := int(math.Floor(float64(f.Size) / float64(blockSize)))
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if f.FragInd == 0xFFFFFFFF && f.Size%blockSize > 0 {
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toRead++
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}
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f.BlockSizes = make([]uint32, toRead)
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err = binary.Read(r, binary.LittleEndian, &f.BlockSizes)
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return
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}
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func ReadEFile(r io.Reader, blockSize uint32) (f EFile, err error) {
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err = binary.Read(r, binary.LittleEndian, &f.eFileInit)
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if err != nil {
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return
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}
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toRead := int(math.Floor(float64(f.Size) / float64(blockSize)))
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if f.FragInd == 0xFFFFFFFF && f.Size%uint64(blockSize) > 0 {
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toRead++
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}
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f.BlockSizes = make([]uint32, toRead)
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err = binary.Read(r, binary.LittleEndian, &f.BlockSizes)
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return
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}
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