119 lines
2.6 KiB
C#
119 lines
2.6 KiB
C#
//
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// System.Platform
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//
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// Copyright (C) 2011-2013 Xamarin Inc. (www.xamarin.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Runtime.InteropServices;
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namespace System {
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internal static class Platform {
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static bool checkedOS;
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static bool isMacOS;
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static bool isAix;
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static bool isIBMi;
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#if MONOTOUCH || XAMMAC
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const bool isFreeBSD = false;
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private static void CheckOS() {
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isMacOS = true;
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checkedOS = true;
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}
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#elif ORBIS
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const bool isFreeBSD = true;
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private static void CheckOS() {
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checkedOS = true;
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}
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#else
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static bool isFreeBSD;
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[DllImport ("libc")]
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static extern int uname (IntPtr buf);
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private static void CheckOS() {
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if (Environment.OSVersion.Platform != PlatformID.Unix) {
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checkedOS = true;
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return;
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}
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IntPtr buf = Marshal.AllocHGlobal (8192);
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if (uname (buf) == 0) {
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string os = Marshal.PtrToStringAnsi (buf);
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switch (os) {
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case "Darwin":
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isMacOS = true;
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break;
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case "FreeBSD":
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isFreeBSD = true;
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break;
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case "AIX":
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isAix = true;
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break;
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case "OS400":
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isIBMi = true;
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break;
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}
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}
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Marshal.FreeHGlobal (buf);
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checkedOS = true;
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}
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#endif
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public static bool IsMacOS {
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get {
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if (!checkedOS)
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CheckOS();
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return isMacOS;
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}
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}
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public static bool IsFreeBSD {
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get {
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if (!checkedOS)
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CheckOS();
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return isFreeBSD;
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}
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}
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public static bool IsIBMi {
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get {
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if (!checkedOS)
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CheckOS();
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return isIBMi;
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}
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}
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public static bool IsAix {
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get {
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if (!checkedOS)
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CheckOS();
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return isAix;
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}
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}
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}
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}
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