diff options
Diffstat (limited to 'Emby.Server.Implementations/IO/SharpCifs/Util/Hexdump.cs')
| -rw-r--r-- | Emby.Server.Implementations/IO/SharpCifs/Util/Hexdump.cs | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/Emby.Server.Implementations/IO/SharpCifs/Util/Hexdump.cs b/Emby.Server.Implementations/IO/SharpCifs/Util/Hexdump.cs new file mode 100644 index 000000000..7e53f76e3 --- /dev/null +++ b/Emby.Server.Implementations/IO/SharpCifs/Util/Hexdump.cs @@ -0,0 +1,191 @@ +// 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--; + } + } + } +} |