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// This code is derived from jcifs smb client library <jcifs at samba dot org>
// Ported by J. Arturo <webmaster at komodosoft dot net>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
using System;
using System.IO;
namespace SharpCifs.Util
{
public class Hexdump
{
private static readonly string Nl = @"\r\n"; //Runtime.GetProperty("line.separator");
private static readonly int NlLength = Nl.Length;
private static readonly char[] SpaceChars = { ' ', ' ', ' ', ' ', ' '
, ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' '
, ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' '
, ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ' };
public static readonly char[] HexDigits = { '0', '1', '2', '3', '4',
'5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
private static bool IsIsoControl(char c)
{
return (c >= '\u0000' && c <= '\u001F') || (c >= '\u007F' && c <= '\u009F');
}
/// <summary>
/// Generate "hexdump" output of the buffer at src like the following:
/// <p><blockquote><pre>
/// 00000: 04 d2 29 00 00 01 00 00 00 00 00 01 20 45 47 46 |..).........
/// </summary>
/// <remarks>
/// Generate "hexdump" output of the buffer at src like the following:
/// <p><blockquote><pre>
/// 00000: 04 d2 29 00 00 01 00 00 00 00 00 01 20 45 47 46 |..)......... EGF|
/// 00010: 43 45 46 45 45 43 41 43 41 43 41 43 41 43 41 43 |CEFEECACACACACAC|
/// 00020: 41 43 41 43 41 43 41 43 41 43 41 41 44 00 00 20 |ACACACACACAAD.. |
/// 00030: 00 01 c0 0c 00 20 00 01 00 00 00 00 00 06 20 00 |..... ........ .|
/// 00040: ac 22 22 e1 |."". |
/// </blockquote></pre>
/// </remarks>
public static void ToHexdump(TextWriter ps, byte[] src, int srcIndex, int length)
{
if (length == 0)
{
return;
}
int s = length % 16;
int r = (s == 0) ? length / 16 : length / 16 + 1;
char[] c = new char[r * (74 + NlLength)];
char[] d = new char[16];
int i;
int si = 0;
int ci = 0;
do
{
ToHexChars(si, c, ci, 5);
ci += 5;
c[ci++] = ':';
do
{
if (si == length)
{
int n = 16 - s;
Array.Copy(SpaceChars, 0, c, ci, n * 3);
ci += n * 3;
Array.Copy(SpaceChars, 0, d, s, n);
break;
}
c[ci++] = ' ';
i = src[srcIndex + si] & 0xFF;
ToHexChars(i, c, ci, 2);
ci += 2;
if (i < 0 || IsIsoControl((char)i))
{
d[si % 16] = '.';
}
else
{
d[si % 16] = (char)i;
}
}
while ((++si % 16) != 0);
c[ci++] = ' ';
c[ci++] = ' ';
c[ci++] = '|';
Array.Copy(d, 0, c, ci, 16);
ci += 16;
c[ci++] = '|';
//Sharpen.Runtime.GetCharsForString(NL, 0, NL_LENGTH, c, ci);
c = Nl.ToCharArray(0, NlLength);
ci += NlLength;
}
while (si < length);
ps.WriteLine(c);
}
/// <summary>
/// This is an alternative to the <code>java.lang.Integer.toHexString</cod>
/// method.
/// </summary>
/// <remarks>
/// This is an alternative to the <code>java.lang.Integer.toHexString</cod>
/// method. It is an efficient relative that also will pad the left side so
/// that the result is <code>size</code> digits.
/// </remarks>
public static string ToHexString(int val, int size)
{
char[] c = new char[size];
ToHexChars(val, c, 0, size);
return new string(c);
}
public static string ToHexString(long val, int size)
{
char[] c = new char[size];
ToHexChars(val, c, 0, size);
return new string(c);
}
public static string ToHexString(byte[] src, int srcIndex, int size)
{
char[] c = new char[size];
size = (size % 2 == 0) ? size / 2 : size / 2 + 1;
for (int i = 0, j = 0; i < size; i++)
{
c[j++] = HexDigits[(src[i] >> 4) & 0x0F];
if (j == c.Length)
{
break;
}
c[j++] = HexDigits[src[i] & 0x0F];
}
return new string(c);
}
/// <summary>
/// This is the same as
/// <see cref="ToHexString(int, int)">ToHexString(int, int)</see>
/// but provides a more practical form when trying to avoid
/// <see cref="string">string</see>
/// concatenation and
/// <see cref="System.Text.StringBuilder">System.Text.StringBuilder</see>
/// .
/// </summary>
public static void ToHexChars(int val, char[] dst, int dstIndex, int size)
{
while (size > 0)
{
int i = dstIndex + size - 1;
if (i < dst.Length)
{
dst[i] = HexDigits[val & 0x000F];
}
if (val != 0)
{
val = (int)(((uint)val) >> 4);
}
size--;
}
}
public static void ToHexChars(long val, char[] dst, int dstIndex, int size)
{
while (size > 0)
{
dst[dstIndex + size - 1] = HexDigits[(int)(val & 0x000FL)];
if (val != 0)
{
val = (long)(((ulong)val) >> 4);
}
size--;
}
}
}
}
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