[Bug 38107] New: Cygwin and MSYS2 needes NULL Device for /dev/zero, /dev/null, /dev/full and so on

https://bugs.winehq.org/show_bug.cgi?id=38107

Bug ID: 38107
           Summary: Cygwin and MSYS2 needes NULL Device for /dev/zero,
                    /dev/null, /dev/full and so on
           Product: Wine
           Version: 1.7.36
          Hardware: x86
               URL: http://sourceforge.net/projects/msys2/files/Base/i686/
                    msys2-i686-20150202.exe
                OS: Linux
            Status: NEW
          Keywords: download, source, testcase
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Steps to reproduce:

1. Install Cygwin or MSYS2

2. Start bash.exe from wineconsole

3. run `/usr/bin/ls /dev` inside bash.exe

Expected result:
/dev/null, /dev/zero, /dev/full and so on should be listed in result
Actual result:
Missing /dev/null device and so on.

Trace log:

0031:Call ntdll.RtlInitUnicodeString(0062c538,0062c558 L"\Device\Null")
ret=610089cb
0031:Ret  ntdll.RtlInitUnicodeString() retval=0000001a ret=610089cb
0031:Call ntdll.NtOpenSymbolicLinkObject(0062c534,00000001,0062c540)
ret=61008a16
0031:trace:ntdll:NtOpenSymbolicLinkObject
(0x62c534,0x00000001,{name=L"\Device\Null", attr=0x00000040, hRoot=(nil),
sd=(nil)} 
)
0031:Ret  ntdll.NtOpenSymbolicLinkObject() retval=c0000034 ret=61008a16

Source code:

msys2-code/winsup/cygwin/device.in:

150 "/dev/windows", BRACK(FH_WINDOWS), "\Device\Null", exists_ntdev, S_IFCHR
151 "/dev/dsp", BRACK(FH_OSS_DSP), "\Device\Null", exists_ntdev, S_IFCHR
152 "/dev/conin", BRACK(FH_CONIN), "/dev/conin", exists_console, S_IFCHR
153 "/dev/conout", BRACK(FH_CONOUT), "/dev/conout", exists_console, S_IFCHR
154 "/dev/null", BRACK(FH_NULL), "\Device\Null", exists_ntdev, S_IFCHR
155 "/dev/zero", BRACK(FH_ZERO), "\Device\Null", exists_ntdev, S_IFCHR
156 "/dev/full", BRACK(FH_FULL), "\Device\Null", exists_ntdev, S_IFCHR
157 "/dev/random", BRACK(FH_RANDOM), "\Device\Null", exists_ntdev, S_IFCHR
158 "/dev/urandom", BRACK(FH_URANDOM), "\Device\Null", exists_ntdev, S_IFCHR,
=urandom_dev
159 "/dev/clipboard", BRACK(FH_CLIPBOARD), "\Device\Null", exists_ntdev,
S_IFCHR

[Bug 38107] Cygwin and MSYS2 needes NULL Device for /dev/zero, /dev/null, /dev/full and so on

https://bugs.winehq.org/show_bug.cgi?id=38107

--- Comment #1 from Qian Hong  ---
Install native null.sys on Wine helps. Should not be hard to implement a
builtin null.sys.

[Bug 38107] Cygwin and MSYS2 needes NULL Device for /dev/zero, /dev/null, /dev/full and so on

https://bugs.winehq.org/show_bug.cgi?id=38107

André H.  changed:

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

[Bug 38107] Cygwin and MSYS2 needes NULL Device for /dev/zero, /dev/null, /dev/full and so on

https://bugs.winehq.org/show_bug.cgi?id=38107

Jactry Zeng  changed:

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

[Bug 38107] Cygwin and MSYS2 needes NULL Device for /dev/zero, /dev/null, /dev/full and so on

https://bugs.winehq.org/show_bug.cgi?id=38107

Sebastian Lackner  changed:

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

--- Comment #2 from Sebastian Lackner  ---
Should be fixed with
http://source.winehq.org/git/wine.git/patch/950c82094b34bec87b38e09fe4657df4...
(and previous patches).

[Bug 38107] Cygwin and MSYS2 needes NULL Device for /dev/zero, /dev/null, /dev/full and so on

https://bugs.winehq.org/show_bug.cgi?id=38107

Qian Hong  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
      Fixed by SHA1|                            |950c82094b34bec87b38e09fe46
                   |                            |57df4eeeb0522
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #3 from Qian Hong  ---
Confirming fixed, thanks Alexandre Julliard and Sebastian Lackner!

With the current implemenation, /dev/zero and /dev/null works pretty well in
MSYS2:
(A couple of other patches from wine-staging needed, but not related to this
bug)

fracting@fracting-ThinkPad-Edge-E431 MSYS ~
$ dd if=/dev/zero of=/dev/null bs=1M count=100
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 0.0079404 s, 13.2 GB/s

fracting@fracting-ThinkPad-Edge-E431 MSYS ~
$ dd if=/dev/zero of=/dev/full bs=1M count=100
dd: error writing ‘/dev/full’: No space left on device
1+0 records in
0+0 records out
0 bytes (0 B) copied, 0.0051413 s, 0.0 kB/s

[Bug 38107] Cygwin and MSYS2 needes NULL Device for /dev/zero, /dev/null, /dev/full and so on

https://bugs.winehq.org/show_bug.cgi?id=38107

Alexandre Julliard  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #4 from Alexandre Julliard  ---
Closing bugs fixed in 1.7.44.