Initial Commit

iTechSharp/srcbc/util/Platform.cs

@@ -0,0 +1,72 @@
+using System;
+using System.IO;
+using System.Text;
+
+namespace Org.BouncyCastle.Utilities
+{
+	internal sealed class Platform
+	{
+		private Platform()
+		{
+		}
+
+#if NETCF_1_0
+		internal static Exception CreateNotImplementedException(
+			string message)
+		{
+			return new Exception("Not implemented: " + message);
+		}
+
+		internal static bool Equals(
+			object	a,
+			object	b)
+		{
+			return a == b || (a != null && b != null && a.Equals(b));
+		}
+
+		internal static string GetEnvironmentVariable(
+			string variable)
+		{
+			return null;
+		}
+
+		private static string GetNewLine()
+		{
+			MemoryStream buf = new MemoryStream();
+			StreamWriter w = new StreamWriter(buf, Encoding.ASCII);
+			w.WriteLine();
+			w.Close();
+			byte[] bs = buf.ToArray();
+			return Encoding.ASCII.GetString(bs, 0, bs.Length);
+		}
+#else
+		internal static Exception CreateNotImplementedException(
+			string message)
+		{
+			return new NotImplementedException(message);
+		}
+
+		internal static string GetEnvironmentVariable(
+			string variable)
+		{
+			try
+			{
+				return Environment.GetEnvironmentVariable(variable);
+			}
+			catch (System.Security.SecurityException)
+			{
+				// We don't have the required permission to read this environment variable,
+				// which is fine, just act as if it's not set
+				return null;
+			}
+		}
+
+		private static string GetNewLine()
+		{
+			return Environment.NewLine;
+		}
+#endif
+
+		internal static readonly string NewLine = GetNewLine();
+	}
+}