Move Console usage of stat wrapper to new IO shim

Author: nguerrera

src/Common/src/Interop/Unix/Interop.Libraries.cs

@@ -9,6 +9,7 @@ private static partial class Libraries
         internal const string LibCoreClr= "libcoreclr";        // CoreCLR runtime
         internal const string LibCrypto = "libcrypto";         // OpenSSL crypto library
         internal const string Zlib = "libz";                   // zlib compression library
+        internal const string IOInterop = "System.IO.Native";
         internal const string CryptoInterop = "System.Security.Cryptography.Native";
     }
 }

src/Common/src/Interop/Unix/System.IO.Native/Interop.NativeIO.cs

@@ -0,0 +1,47 @@
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using System;
+using System.Runtime.InteropServices;
+
+internal static partial class Interop
+{
+    internal static partial class NativeIO
+    {
+        internal struct FileStats
+        {
+            private FileStatsFlags Flags;
+            internal int Mode;
+            internal int Uid;
+            internal int Gid;
+            internal int Size;
+            internal int AccessTime;
+            internal int ModificationTime;
+            internal int StatusChangeTime;
+            internal int CreationTime;
+        }
+
+        internal static class FileTypes
+        {
+            internal const int S_IFMT = 0xF000;
+            internal const int S_IFIFO = 0x1000;
+            internal const int S_IFCHR = 0x2000;
+            internal const int S_IFDIR = 0x4000;
+            internal const int S_IFREG = 0x8000;
+            internal const int S_IFLNK = 0xA000;
+        }
+
+        [Flags]
+        internal enum FileStatsFlags
+        {
+            None = 0,
+            HasCreationTime = 1,
+        }
+
+        [DllImport(Libraries.IOInterop, SetLastError = true)]
+        internal static extern int GetFileStatsFromDescriptor(int fileDescriptor, out FileStats output);
+
+        [DllImport(Libraries.IOInterop, SetLastError = true)]
+        internal static extern int GetFileStatsFromPath(string path, out FileStats output);
+    }
+}

src/System.Console/src/System.Console.csproj

@@ -138,6 +138,9 @@
     <Compile Include="$(CommonPath)\Interop\Unix\libcoreclr\Interop.GetFileInformation.cs">
       <Link>Common\Interop\Unix\Interop.GetFileInformation.cs"</Link>
     </Compile>
+    <Compile Include="$(CommonPath)\Interop\Unix\System.IO.Native\Interop.NativeIO.cs">
+      <Link>Common\Interop\Unix\Interop.NativeIO.cs"</Link>
+    </Compile>
     <Compile Include="$(CommonPath)\Interop\Unix\libcoreclr\Interop.SetConsoleCtrlHandler.cs">
       <Link>Common\Interop\Unix\Interop.SetConsoleCtrlHandler.cs"</Link>
     </Compile>

src/System.Console/src/System/ConsolePal.Unix.cs

@@ -91,7 +91,7 @@ private static bool ConsoleOutIsTerminal
                         UnixConsoleStream ucs = sw.BaseStream as UnixConsoleStream;
                         if (ucs != null)
                         {
-                            return ucs._handleType == Interop.libcoreclr.FileTypes.S_IFCHR;
+                            return ucs._handleType == Interop.NativeIO.FileTypes.S_IFCHR;
                         }
                     }
                 }
@@ -378,11 +378,11 @@ internal UnixConsoleStream(string devPath, FileAccess access)
                 try
                 {
                     _handle.DangerousAddRef(ref gotFd);
-                    Interop.libcoreclr.fileinfo buf;
+                    Interop.NativeIO.FileStats buf;
                     _handleType =
-                        Interop.libcoreclr.GetFileInformationFromFd((int)_handle.DangerousGetHandle(), out buf) == 0 ?
-                            (buf.mode & Interop.libcoreclr.FileTypes.S_IFMT) :
-                            Interop.libcoreclr.FileTypes.S_IFREG; // if something goes wrong, don't fail, just say it's a regular file
+                        Interop.NativeIO.GetFileStatsFromDescriptor((int)_handle.DangerousGetHandle(), out buf) == 0 ?
+                            (buf.Mode & Interop.NativeIO.FileTypes.S_IFMT) :
+                            Interop.NativeIO.FileTypes.S_IFREG; // if something goes wrong, don't fail, just say it's a regular file
                 }
                 finally
                 {