class/System.Core/tools/hashwrap.cs

   1 //
   2 // Code generator for hash wrappers
   3 //
   4 // Authors:
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //
   7 // Copyright (C) 2008 Novell, Inc (http://www.novell.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 using System;
  30 using System.IO;
  31
  32 class Program {
  33
  34         static string Template = @"//
  35 // NOTE: DO NOT EDIT - This file was automatically generated using
  36 //      /mcs/class/System.Core/tools/hashwrap.cs
  37 //
  38 // System.Security.Cryptography.<className>
  39 //
  40 // Authors:
  41 //      Sebastien Pouliot  <sebastien@ximian.com>
  42 //
  43 // Copyright (C) 2008 Novell, Inc (http://www.novell.com)
  44 //
  45 // Permission is hereby granted, free of charge, to any person obtaining
  46 // a copy of this software and associated documentation files (the
  47 // 'Software'), to deal in the Software without restriction, including
  48 // without limitation the rights to use, copy, modify, merge, publish,
  49 // distribute, sublicense, and/or sell copies of the Software, and to
  50 // permit persons to whom the Software is furnished to do so, subject to
  51 // the following conditions:
  52 //
  53 // The above copyright notice and this permission notice shall be
  54 // included in all copies or substantial portions of the Software.
  55 //
  56 // THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
  57 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  58 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  59 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  60 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  61 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  62 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  63 //
  64
  65 #if !NET_2_1
  66
  67 namespace System.Security.Cryptography {
  68
  69         // this is a wrapper around <wrapAround>
  70         // see README.CNG and README.CSP for more details
  71
  72         public sealed class <className> : <baseName> {
  73
  74                 static byte[] Empty = new byte [0];
  75
  76                 private <baseName> hash;
  77
  78                 [SecurityCritical]
  79                 public <className> ()
  80                 {
  81                         // note: we don't use <baseName>.Create since CryptoConfig could,
  82                         // if set to use this class, result in a endless recursion
  83                         hash = new <wrapAround> ();
  84                 }
  85
  86                 [SecurityCritical]
  87                 public override void Initialize ()
  88                 {
  89                         hash.Initialize ();
  90                 }
  91
  92                 [SecurityCritical]
  93                 protected override void HashCore (byte[] array, int ibStart, int cbSize)
  94                 {
  95                         hash.TransformBlock (array, ibStart, cbSize, null, 0);
  96                 }
  97
  98                 [SecurityCritical]
  99                 protected override byte[] HashFinal ()
 100                 {
 101                         hash.TransformFinalBlock (Empty, 0, 0);
 102                         HashValue = hash.Hash;
 103                         return HashValue;
 104                 }
 105
 106                 [SecurityCritical]
 107                 protected override void Dispose (bool disposing)
 108                 {
 109                         (hash as IDisposable).Dispose ();
 110                         base.Dispose (disposing);
 111                 }
 112         }
 113 }
 114
 115 #endif
 116 ";
 117
 118         static int Main (string [] args)
 119         {
 120                 int n = (args.Length / 3);
 121                 if ((args.Length > 0) && ((args.Length % 3) != 0)) {
 122                         Console.WriteLine ("usage: mono hashwrap.exe className baseName wrapAround [...]");
 123                         return 1;
 124                 }
 125
 126                 int p = 0;
 127                 for (int i = 0; i < n; i++) {
 128                         string className = args [p++];  // e.g. MD5Cng
 129                         string baseName = args [p++];   // e.g. MD5
 130                         string wrapAround = args [p++]; // e.g. MD5CryptoServiceProvider
 131
 132                         string filename = className + ".cs";
 133                         using (StreamWriter writer = new StreamWriter (filename)) {
 134                                 string code = Template.Replace ("<className>", className);
 135                                 code = code.Replace ("<baseName>", baseName);
 136                                 code = code.Replace ("<wrapAround>", wrapAround);
 137                                 writer.Write (code);
 138                         }
 139                 }
 140
 141                 return 0;
 142         }
 143 }