Edit Question - KnowledgeHub

Title Body

I need to extract various fields in a byte buffer. I came up with this solution: func (fs *FileSystem) readSB() { // fs.f is a *os.File buf := make([]byte, 1024) fs.f.ReadAt(buf, 1024) // Offset: type var p *bytes.Buffer // 0: uint32 p = bytes.NewBuffer(buf[0:]) binary.Read(p, binary.LittleEndian, &fs.sb.inodeCount) // 4: uint32 p = bytes.NewBuffer(buf[4:]) binary.Read(p, binary.LittleEndian, &fs.sb.blockCount) // 20: uint32 p = bytes.NewBuffer(buf[20:]) binary.Read(p, binary.LittleEndian, &fs.sb.firstDataBlock) // 24: uint32 p = bytes.NewBuffer(buf[24:]) binary.Read(p, binary.LittleEndian, &fs.sb.blockSize) fs.sb.blockSize = 1024 << fs.sb.blockSize // 32: uint32 p = bytes.NewBuffer(buf[32:]) binary.Read(p, binary.LittleEndian, &fs.sb.blockPerGroup) // 40: uint32 p = bytes.NewBuffer(buf[40:]) binary.Read(p, binary.LittleEndian, &fs.sb.inodePerBlock) } Is there a more better/idiomatic/straightforward way of doing this? I want to keep offsets explicit I want to read from the byte buffer, not seeking and reading from the file when possible.

Tags (comma-separated) Cancel