Mono stdin strangeness, Wine bug #45039 https://bugs.winehq.org/show_bug.cgi?id=45039

01_shout.cs

using System;
using System.IO;

namespace shout
{
    class Program
    {
        static void Main()
        {
            // reopenStdin(maxLineLen: 4 * 1024);
            string text = ask("What should I shout?");
            Console.WriteLine(text.ToUpper() + '!');
        }

        static void reopenStdin(int maxLineLen) {
            Stream stdin = Console.OpenStandardInput(maxLineLen);
            Console.SetIn(new StreamReader(stdin));
        }

        static string ask(string q)
        {
            Console.WriteLine("D: In is a " + safeGetType(Console.In));
            if (Console.In is System.IO.StreamReader)
            {
                Console.WriteLine("D: In also is a StreamReader");
            }
            if (Console.In is System.IO.TextReader)
            {
                Console.WriteLine("D: In also is a TextReader");
            }
            Console.WriteLine(q);
            return Console.In.ReadLine();
        }

        static string safeGetType(object obj)
        {
            if (obj == null)
            {
                return "(null)";
            }
            return obj.GetType().Name;
        }

    }
}

02_log_win7.txt

C:\inbox>echo hello| shout.exe 2>&1 | nl
     1  D: In is a SyncTextReader
     2  D: In also is a TextReader
     3  What should I shout?
     4  HELLO!

C:\inbox>shout.exe 2>&1 | nl
     1  D: In is a SyncTextReader
     2  D: In also is a TextReader
     3  What should I shout?
hello
     4  HELLO!

C:\inbox>

03_log_wine.txt

$ wine --version
wine-3.6

$ mono --version
Mono JIT compiler version 3.2.8 (Debian 3.2.8+dfsg-4ubuntu1.1)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
        TLS:           __thread
        SIGSEGV:       altstack
        Notifications: epoll
        Architecture:  x86
        Disabled:      none
        Misc:          softdebug
        LLVM:          supported, not enabled.
        GC:            sgen

$ lsb_release -sdc | fmt
Ubuntu 14.04.5 LTS trusty

$ uname -a
Linux hostname 3.13.0-142-generic #191-Ubuntu SMP Fri Feb 2 12:14:37 UTC 2018 i686 i686 i686 GNU/Linux

$ wine shout.exe | tee shout.log
D: In is a SyncTextReader
D: In also is a TextReader
What should I shout?
hello                         # <-- this is my terminal emulator's echo of what I typed
HELLO!

$ <<<hello wine shout.exe | tee shout.log
D: In is a SyncTextReader
D: In also is a TextReader
What should I shout?
HELLO!

$ <<<hello wine shout.exe |& tee shout.log
D: In is a SyncTextReader
D: In also is a TextReader
What should I shout?
HELLO!

$ cat | wine shout.exe |& tee shout.log
D: In is a SyncTextReader
D: In also is a TextReader
What should I shout?
hello                         # <-- this is my terminal emulator's echo of what I typed
HELLO!

# TTY input also works if just stderr is redirected:

$ wine shout.exe 2| tee shout.log 
D: In is a StreamReader
D: In also is a StreamReader
D: In also is a TextReader
What should I shout?
hello                         # <-- this is my terminal emulator's echo of what I typed
HELLO!

# However, when using a TTY as stdin and redirecting both stdout and stderr:

$ wine shout.exe |& tee shout.log
D: In is a SyncTextReader
D: In also is a TextReader
What should I shout?

Unhandled Exception:
System.UnauthorizedAccessException: Access to the path "H:\[Unknown]" is denied.
  at System.IO.FileStream.ReadData (System.Runtime.InteropServices.SafeHandle safeHandle, System.Byte[] buf, System.Int32 offset, System.Int32 count) [0x0002d] in <1c90db0b17cb4b1e827d577d0607b212>:0 
  at System.IO.FileStream.ReadInternal (System.Byte[] dest, System.Int32 offset, System.Int32 count) [0x00026] in <1c90db0b17cb4b1e827d577d0607b212>:0 
  at System.IO.FileStream.Read (System.Byte[] array, System.Int32 offset, System.Int32 count) [0x000a1] in <1c90db0b17cb4b1e827d577d0607b212>:0 
  at System.IO.StreamReader.ReadBuffer () [0x000b3] in <1c90db0b17cb4b1e827d577d0607b212>:0 
  at System.IO.StreamReader.ReadLine () [0x00021] in <1c90db0b17cb4b1e827d577d0607b212>:0 
  at System.IO.UnexceptionalStreamReader.ReadLine () [0x00000] in <1c90db0b17cb4b1e827d577d0607b212>:0 
  at System.IO.TextReader+SyncTextReader.ReadLine () [0x00000] in <1c90db0b17cb4b1e827d577d0607b212>:0 
  at (wrapper synchronized) System.IO.TextReader+SyncTextReader:ReadLine ()
  at shout.Program.ask (System.String q) [0x00051] in <e93cd1412592421990fb34e18c0f1d21>:0 
  at shout.Program.Main () [0x00000] in <e93cd1412592421990fb34e18c0f1d21>:0 
[ERROR] FATAL UNHANDLED EXCEPTION: System.UnauthorizedAccessException: Access to the path "H:\[Unknown]" is denied.
  at System.IO.FileStream.ReadData (System.Runtime.InteropServices.SafeHandle safeHandle, System.Byte[] buf, System.Int32 offset, System.Int32 count) [0x0002d] in <1c90db0b17cb4b1e827d577d0607b212>:0 
  at System.IO.FileStream.ReadInternal (System.Byte[] dest, System.Int32 offset, System.Int32 count) [0x00026] in <1c90db0b17cb4b1e827d577d0607b212>:0 
  at System.IO.FileStream.Read (System.Byte[] array, System.Int32 offset, System.Int32 count) [0x000a1] in <1c90db0b17cb4b1e827d577d0607b212>:0 
  at System.IO.StreamReader.ReadBuffer () [0x000b3] in <1c90db0b17cb4b1e827d577d0607b212>:0 
  at System.IO.StreamReader.ReadLine () [0x00021] in <1c90db0b17cb4b1e827d577d0607b212>:0 
  at System.IO.UnexceptionalStreamReader.ReadLine () [0x00000] in <1c90db0b17cb4b1e827d577d0607b212>:0 
  at System.IO.TextReader+SyncTextReader.ReadLine () [0x00000] in <1c90db0b17cb4b1e827d577d0607b212>:0 
  at (wrapper synchronized) System.IO.TextReader+SyncTextReader:ReadLine ()
  at shout.Program.ask (System.String q) [0x00051] in <e93cd1412592421990fb34e18c0f1d21>:0 
  at shout.Program.Main () [0x00000] in <e93cd1412592421990fb34e18c0f1d21>:0