Hex Dump From File - CSharp System

CSharp examples for System:Hex

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Description

Hex Dump From File

Demo Code


using System.Windows.Forms;
using System.IO;/*  w  ww .ja v  a  2 s. co m*/
using System.Text;
using System.Linq;
using System.Collections.Generic;
using System;

public class Main{
        public static bool HexDumpFromFile(string sFile, ref string sDump)
        {
            bool bRet = false;

            int iItemsPerLine = 16;

            StringBuilder oSB = new StringBuilder();
            BinaryReader b = null;
            string sHex = string.Empty;
            int iValue = 0;
            int iItem = 0;
            int iReadSize = sizeof(byte);
            string sText = string.Empty;

            string sHeader1 = "       00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F  0123456789ABCDEF\r\n";
            string sHeader2 = "------+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+-----------------\r\n";


            string path = sFile.Trim();
            if (File.Exists(path))
            {

                try
                {
                    oSB.Append(sHeader1);
                    oSB.Append(sHeader2);

                    b = new BinaryReader(File.Open(path, FileMode.Open));


                    int pos = 0;

                    int length = (int)b.BaseStream.Length;
                    while (pos < length)
                    {
                        //iValue = b.ReadInt32();
                        //iValue = b.ReadChar();
                        iValue = b.ReadByte();
                        iItem += 1;

                        if (char.IsControl((char)iValue))
                        {
                            sText += " ";

                        }
                        else
                        {
                            sText += string.Format("{0}", (char)iValue).PadLeft(1, ' ');
                        }

                        // Start of Line - Add position
                        if (iItem == 1)
                        {
                            oSB.Append(string.Format("{0000:X}", pos).PadLeft(4, '0'));
                            oSB.Append("  ");
                        }

                        if (iItem <= iItemsPerLine)
                        {
                            oSB.Append(" ");
                            sHex = string.Format("{00:X}", iValue).PadLeft(2, '0');
                            oSB.Append(sHex);

                            // Text Representation of hex bits.
                            if (iItem == iItemsPerLine)
                            {

                                oSB.Append("  " + sText); // Add text representation of hex.
                                sText = string.Empty;
                                sHex = string.Format("\r\n");
                                oSB.Append(sHex);

                                sHex = string.Empty;
                                iItem = 0;
                            }
                        }

                        if (iItem > 0 && iItem != iItemsPerLine)
                        {
                            int iPadLength = (3 * (16 - iItem)) + 2;
                            string sPadding = String.Format("{0:X}", "").PadLeft(iPadLength, ' ');
                            oSB.Append(sPadding);
                            oSB.Append(sText); // Add text representation of hex.
                            oSB.Append("\r\n");
                            pos++;
                        }


                        pos += iReadSize;  // Point to next.
                    }

                    b.Close();
                    b = null;
                    sDump = oSB.ToString();
                    bRet = true;
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message.ToString(), "Error Reading File");
                    bRet = false;
                }



            }

            return bRet;

        }
}

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