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- public static string HexDump(byte[] bytes, int bytesLength, int bytesPerLine = 16)
- {
- if (bytes == null) return "<null>";
- //int bytesLength = bytes.Length;
- char[] HexChars = "0123456789ABCDEF".ToCharArray();
- int firstHexColumn =
- 8 // 8 characters for the address
- + 3; // 3 spaces
- int firstCharColumn = firstHexColumn
- + bytesPerLine * 3 // - 2 digit for the hexadecimal value and 1 space
- + (bytesPerLine - 1) / 8 // - 1 extra space every 8 characters from the 9th
- + 2; // 2 spaces
- int lineLength = firstCharColumn
- + bytesPerLine // - characters to show the ascii value
- + Environment.NewLine.Length; // Carriage return and line feed (should normally be 2)
- char[] line = (new String(' ', lineLength - 2) + Environment.NewLine).ToCharArray();
- int expectedLines = (bytesLength + bytesPerLine - 1) / bytesPerLine;
- StringBuilder result = new StringBuilder(expectedLines * lineLength);
- for (int i = 0; i < bytesLength; i += bytesPerLine)
- {
- line[0] = HexChars[(i >> 28) & 0xF];
- line[1] = HexChars[(i >> 24) & 0xF];
- line[2] = HexChars[(i >> 20) & 0xF];
- line[3] = HexChars[(i >> 16) & 0xF];
- line[4] = HexChars[(i >> 12) & 0xF];
- line[5] = HexChars[(i >> 8) & 0xF];
- line[6] = HexChars[(i >> 4) & 0xF];
- line[7] = HexChars[(i >> 0) & 0xF];
- int hexColumn = firstHexColumn;
- int charColumn = firstCharColumn;
- for (int j = 0; j < bytesPerLine; j++)
- {
- if (j > 0 && (j & 7) == 0) hexColumn++;
- if (i + j >= bytesLength)
- {
- line[hexColumn] = ' ';
- line[hexColumn + 1] = ' ';
- line[charColumn] = ' ';
- }
- else
- {
- byte b = bytes[i + j];
- line[hexColumn] = HexChars[(b >> 4) & 0xF];
- line[hexColumn + 1] = HexChars[b & 0xF];
- line[charColumn] = (b < 32 ? 'ยท' : (char)b);
- }
- hexColumn += 3;
- charColumn++;
- }
- result.Append(line);
- }
- return result.ToString();
- }
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