gopkg.in/hugelgupf/u-root.v9@v9.0.0-20180831063832-3f6f1057f09b/cmds/io/io_linux.go (about)

     1  // Copyright 2012-2017 the u-root Authors. All rights reserved
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // This file contains support functions for io for Linux.
     6  package main
     7  
     8  import (
     9  	"encoding/binary"
    10  	"fmt"
    11  	"io"
    12  )
    13  
    14  func in(f io.ReadSeeker, addr uint64, data interface{}) error {
    15  	_, err := f.Seek(int64(addr), 0)
    16  	if err != nil {
    17  		return fmt.Errorf("in: bad address %v: %v", addr, err)
    18  	}
    19  	return binary.Read(f, binary.LittleEndian, data)
    20  }
    21  
    22  func out(f io.WriteSeeker, addr uint64, data interface{}) error {
    23  	_, err := f.Seek(int64(addr), 0)
    24  	if err != nil {
    25  		return fmt.Errorf("out: bad address %v: %v", addr, err)
    26  	}
    27  	return binary.Write(f, binary.LittleEndian, data)
    28  }