[Bug 56381] New: "type" does not support binary files

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=56381

Bug ID: 56381
           Summary: "type" does not support binary files
           Product: Wine
           Version: 9.0
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: cmd
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

"type" truncates binary files when redirecting the output to stdout. For
example:

c:>type c:\windows\winhelp.exe >foo

c:>dir c:\windows\winhelp.exe foo
Volume in drive c has no label.
Volume Serial Number is 0000-0000

Directory of c:\windows

28/02/2022   5:32 PM           257  winhelp.exe
       1 file                       257 bytes
       0 directories

Directory of c:

29/02/2024   1:21 PM             2  foo
       1 file                         2 bytes
       0 directories     19,394,506,752 bytes free

The file is truncated after the second byte (byte 3 is NUL). Windows 10 and
Windows XP copy the entire file in this case. However, Windows 95 truncates the
file.

This is causing real-world compatibility issues, as the z88dk compiler suite
inexplicably uses "type" to copy binary files like this on Windows.

[Bug 56381] "type" does not support binary files

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=56381

JoeS  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]

--- Comment #1 from JoeS  ---
Just noting that the truncation occurs whether redirecting output or not.  type
c:\windows\winhelp.exe displays only the first two bytes of the file.

[Bug 56381] "type" does not support binary files

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=56381

--- Comment #2 from JoeS  ---
The problem here is that Wine assumes that TYPE will be displaying text and
attempts to convert the read text to Unicode.  This text conversion stops at
the NUL character because that is the end of the text file.  Native Win10 TYPE
command does not seem to handle Unicode and displays Unicode text as
single-byte characters which appear to be gibberish, at least in U.S. page
codes.  To fix this, Wine's TYPE command would probably need to be rewritten to
read and display the text as single-byte characters.

[Bug 56381] "type" does not support binary files

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=56381

--- Comment #3 from JoeS  ---
Also note that I don't know how the TYPE command operates on Far East code
pages which handle Unicode by default.

[Bug 56381] "type" does not support binary files

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=56381

--- Comment #4 from JoeS  ---
I am working on a fix for this.