120 lines
3.5 KiB
C#
120 lines
3.5 KiB
C#
///////////////////////////////////////////////////////////////////////////////
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//
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// Microsoft Research Singularity
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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using System;
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using System.Text;
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class Util
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{
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public const string HexDigits = "0123456789abcdef";
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public static string! ByteArrayToStringHex(byte[]! buffer, int index, int length)
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{
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StringBuilder sb = new StringBuilder(length * 2);
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for (int i = 0; i < length; i++) {
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byte b = buffer[index + i];
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sb.Append(HexDigits[b >> 4]);
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sb.Append(HexDigits[b & 0xf]);
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}
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return sb.ToString();
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}
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public static string! ByteArrayToStringHex(byte[]! buffer)
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{
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return ByteArrayToStringHex(buffer, 0, buffer.Length);
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}
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static byte CharToHex(char c)
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{
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if (c >= '0' && c <= '9')
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return (byte)(c - '0');
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if (c >= 'a' && c <= 'f')
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return (byte)(c - 'a' + 10);
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if (c >= 'A' && c <= 'F')
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return (byte)(c - 'A' + 10);
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throw new ArgumentException("Invalid hex char");
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}
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public static byte[]! HexStringToByteArray(string! str)
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{
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if ((str.Length % 2) != 0)
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throw new Exception("Input string cannot be odd in length.");
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byte[] result = new byte[str.Length / 2];
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for (int i = 0; i < result.Length; i++) {
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byte high = CharToHex(str[i * 2]);
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byte low = CharToHex(str[i * 2 + 1]);
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result[i] = (byte)((high << 4) | low);
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}
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return result;
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}
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public static int CompareArraySpans(byte[]! array1, int offset1, byte[]! array2, int offset2, int length)
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{
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for (int i = 0; i < length; i++) {
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byte element1 = array1[i];
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byte element2 = array2[i];
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if (element1 < element2)
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return -1;
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if (element1 > element2)
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return 1;
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}
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return 0;
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}
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public static void DumpBuffer(byte[]! buffer)
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{
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DumpBuffer(buffer, 0, buffer.Length);
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}
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public static void DumpBuffer(byte[]! buffer, int index, int length)
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{
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StringBuilder line = new StringBuilder();
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for (int i = 0; i < length; i += 0x10) {
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line.Length = 0;
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line.AppendFormat("{0:x04}: ", i);
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for (int j = 0; j < 0x10; j++) {
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if (i + j < length) {
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line.Append(" ");
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byte b = buffer[index + i + j];
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line.Append((Char)HexDigits[b >> 4]);
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line.Append((Char)HexDigits[b & 0xf]);
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}
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else {
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line.Append(" ");
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}
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}
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line.Append(" : ");
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for (int j = 0; j < 0x10; j++) {
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if (i + j < length) {
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byte b = buffer[index + i + j];
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if (b >= 32 && b <= 127) {
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line.Append((Char)b);
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}
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else {
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line.Append(".");
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}
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}
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else {
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break;
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}
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}
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Console.WriteLine(line.ToString());
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}
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}
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}
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