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1.3.3-2: Process creation is possible with ppid = 0 and pgid = 0


Hello,

It is possible to create a Cygwin process whose ppid
and pgid are both zero.

If you type the following commands at the shell
command prompt (bash or ash) :
        sh -c "sleep 10 &"
        ps
you will see a process whose PPID and PGID are 0.

I really do suppose it was not meant to allow such a
thing. Normally, a detached process should have ppid
and pgid with value 1. That's what does occur when you
type the following commands :
        sleep 10 &
        ps

Best Regards,



=====
Robert Legros
south Brussels, Belgium
robert_legros@yahoo.com

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Cygnus Win95/NT Configuration Diagnostics
Current System Time: Tue Oct  2 15:43:23 2001

WinNT Ver 5.0 build 2195 Service Pack 1

Path:	/usr/local/bin
	/usr/bin
	/bin
	/cygdrive/c/WINNT/system32
	/cygdrive/c/WINNT
	/cygdrive/c/WINNT/System32/Wbem
	/cygdrive/c/Program Files/Symantec/pcAnywhere/
	.

SysDir: C:\WINNT\System32
WinDir: C:\WINNT

PWD = `/home/rleg/project/cygwin/bug_001'
USER = `rleg'
MAKE_MODE = `unix'
HOME = `/home/rleg'

NUMBER_OF_PROCESSORS = `1'
PROMPT = `$P$G'
LOGONSERVER = `\\ZAV002361'
OS2LIBPATH = `C:\WINNT\system32\os2\dll;'
COMSPEC = `C:\WINNT\system32\cmd.exe'
!C: = `C:\cygwin\bin'
SYSTEMDRIVE = `C:'
HOSTNAME = `ZAV002361'
PROCESSOR_REVISION = `080a'
PATHEXT = `.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH'
COMPUTERNAME = `ZAV002361'
WINDIR = `C:\WINNT'
USERPROFILE = `C:\Documents and Settings\rleg'
PS1 = `\[\033]0;\w\007
\033[32m\]\u@\h \[\033[33m\w\033[0m\]
$ '
PROGRAMFILES = `C:\Program Files'
!:: = `::\'
MACHTYPE = `i686-pc-cygwin'
PROCESSOR_IDENTIFIER = `x86 Family 6 Model 8 Stepping 10, GenuineIntel'
OS = `Windows_NT'
OLDPWD = `/home/rleg/project/cygwin/bug_001/cygwin-1.3.3-2/winsup/utils'
PROCESSOR_ARCHITECTURE = `x86'
TEMP = `/cygdrive/c/DOCUME~1/rleg/LOCALS~1/Temp'
PROCESSOR_LEVEL = `6'
SYSTEMROOT = `C:\WINNT'
TMP = `/cygdrive/c/DOCUME~1/rleg/LOCALS~1/Temp'
HOMEDRIVE = `C:'
ALLUSERSPROFILE = `C:\Documents and Settings\All Users'
SHLVL = `1'
APPDATA = `C:\Documents and Settings\rleg\Application Data'
COMMONPROGRAMFILES = `C:\Program Files\Common Files'
HOMEPATH = `\'
USERDOMAIN = `ZAV002361'
USERNAME = `rleg'
SHELL = `/bin/bash'
HOSTTYPE = `i686'
OSTYPE = `cygwin'
TERM = `cygwin'
_ = `/usr/bin/cygcheck'
TZ = `RST-1RDT-2,M3.5.0/2,M10.5.0/3'

HKEY_CURRENT_USER\Software\Cygnus Solutions
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2
  (default) = `/cygdrive'
  cygdrive flags = 0x00000022
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\Program Options
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Start Menu\Programs\Cygnus Solutions
  (default) = (unsupported type)
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/
  (default) = `C:/cygwin'
  flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/bin
  (default) = `C:/cygwin/bin'
  flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/lib
  (default) = `C:/cygwin/lib'
  flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\Program Options

a:  fd           N/A    N/A                    
c:  hd  FAT32  19082Mb  22% CP    UN           
d:  cd           N/A    N/A                    
e:  net NTFS   17358Mb  97% CP CS UN PA FC     soft
f:  net NTFS    6243Mb  75% CP CS UN PA FC     data

C:\cygwin\bin  /usr/bin  system  binmode
C:\cygwin\lib  /usr/lib  system  binmode
C:\cygwin  /        system  binmode
c:    /cygdrive/c  user    binmode,noumount
e:    /cygdrive/e  user    binmode,noumount
f:    /cygdrive/f  user    binmode,noumount

Found: C:\cygwin\bin\bash.exe
Found: C:\cygwin\bin\cat.exe
Found: C:\cygwin\bin\cpp.exe
Found: C:\cygwin\bin\find.exe
Found: C:\cygwin\bin\gcc.exe
Found: C:\cygwin\bin\gdb.exe
Found: C:\cygwin\bin\ld.exe
Found: C:\cygwin\bin\ls.exe
Found: C:\cygwin\bin\make.exe
Found: C:\cygwin\bin\sh.exe

   56k 2000/12/03 C:\cygwin\bin\cygbz21.0.dll - os=4.0 img=1.0 sys=4.0
                  "cygbz21.0.dll" v0.0 ts=2000/11/21 0:53
   81k 2000/12/05 C:\cygwin\bin\cygitcl30.dll - os=4.0 img=1.0 sys=4.0
                  "cygitcl30.dll" v0.0 ts=2000/11/26 2:43
   35k 2000/12/05 C:\cygwin\bin\cygitk30.dll - os=4.0 img=1.0 sys=4.0
                  "cygitk30.dll" v0.0 ts=2000/11/26 2:43
  390k 2000/12/05 C:\cygwin\bin\cygtcl80.dll - os=4.0 img=1.0 sys=4.0
                  "cygtcl80.dll" v0.0 ts=2000/11/26 2:39
    5k 2000/12/05 C:\cygwin\bin\cygtclpip80.dll - os=4.0 img=1.0 sys=4.0
   10k 2000/12/05 C:\cygwin\bin\cygtclreg80.dll - os=4.0 img=1.0 sys=4.0
                  "cygtclreg80.dll" v0.0 ts=2000/11/26 2:39
  623k 2000/12/05 C:\cygwin\bin\cygtk80.dll - os=4.0 img=1.0 sys=4.0
                  "cygtk80.dll" v0.0 ts=2000/11/26 2:43
   18k 2000/10/23 C:\cygwin\bin\cyggdbm.dll - os=4.0 img=1.0 sys=4.0
                  "cyggdbm.dll" v0.0 ts=2000/10/23 4:26
   21k 2001/06/20 C:\cygwin\bin\cygintl.dll - os=4.0 img=1.0 sys=4.0
                  "cygintl.dll" v0.0 ts=2001/6/20 19:09
   45k 2001/07/04 C:\cygwin\bin\cygjbig1.dll - os=4.0 img=1.0 sys=4.0
                  "cygjbig1.dll" v0.0 ts=2001/7/4 5:25
  119k 2001/06/06 C:\cygwin\bin\cygjpeg6b.dll - os=4.0 img=1.0 sys=4.0
                  "cygjpeg6b.dll" v0.0 ts=2001/6/6 6:27
  163k 2001/05/06 C:\cygwin\bin\cygpng2.dll - os=4.0 img=1.0 sys=4.0
                  "cygpng2.dll" v0.0 ts=2001/5/6 6:05
   45k 2001/04/25 C:\cygwin\bin\cygform5.dll - os=4.0 img=1.0 sys=4.0
                  "cygform5.dll" v0.0 ts=2001/4/25 7:28
   26k 2001/04/25 C:\cygwin\bin\cygmenu5.dll - os=4.0 img=1.0 sys=4.0
                  "cygmenu5.dll" v0.0 ts=2001/4/25 7:27
  156k 2001/04/25 C:\cygwin\bin\cygncurses++5.dll - os=4.0 img=1.0 sys=4.0
                  "cygncurses++5.dll" v0.0 ts=2001/4/25 7:29
  226k 2001/04/25 C:\cygwin\bin\cygncurses5.dll - os=4.0 img=1.0 sys=4.0
                  "cygncurses5.dll" v0.0 ts=2001/4/25 7:17
   15k 2001/04/25 C:\cygwin\bin\cygpanel5.dll - os=4.0 img=1.0 sys=4.0
                  "cygpanel5.dll" v0.0 ts=2001/4/25 7:27
   17k 2001/06/28 C:\cygwin\bin\cyghistory4.dll - os=4.0 img=1.0 sys=4.0
                  "cyghistory4.dll" v0.0 ts=2001/1/7 5:34
   21k 2001/06/28 C:\cygwin\bin\cyghistory5.dll - os=4.0 img=1.0 sys=4.0
                  "cyghistory5.dll" v0.0 ts=2001/6/28 4:27
  108k 2001/06/28 C:\cygwin\bin\cygreadline4.dll - os=4.0 img=1.0 sys=4.0
                  "cygreadline4.dll" v0.0 ts=2001/1/7 5:34
  135k 2001/06/28 C:\cygwin\bin\cygreadline5.dll - os=4.0 img=1.0 sys=4.0
                  "cygreadline5.dll" v0.0 ts=2001/6/28 4:27
  245k 2001/06/12 C:\cygwin\bin\cygtiff3.dll - os=4.0 img=1.0 sys=4.0
                  "cygtiff3.dll" v0.0 ts=2001/6/12 19:25
   41k 2001/07/04 C:\cygwin\bin\cygXpm-noX4.dll - os=4.0 img=1.0 sys=4.0
                  "cygXpm-noX4.dll" v0.0 ts=2001/7/4 3:21
   45k 2001/07/04 C:\cygwin\bin\cygXpm-X4.dll - os=4.0 img=1.0 sys=4.0
                  "cygXpm-X4.dll" v0.0 ts=2000/11/20 3:45
   49k 2001/02/03 C:\cygwin\bin\cygz.dll - os=4.0 img=1.0 sys=4.0
                  "cygz.dll" v0.0 ts=2001/2/3 21:35
  701k 2001/09/13 C:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
                  "cygwin1.dll" v0.0 ts=2001/9/13 5:54
    Cygwin DLL version info:
        dll major: 1003
        dll minor: 3
        dll epoch: 19
        dll bad signal mask: 19005
        dll old termios: 5
        dll malloc env: 28
        api major: 0
        api minor: 46
        shared data: 3
        dll identifier: cygwin1
        mount registry: 2
        cygnus registry name: Cygnus Solutions
        cygwin registry name: Cygwin
        program options name: Program Options
        cygwin mount registry name: mounts v2
        cygdrive flags: cygdrive flags
        cygdrive prefix: cygdrive prefix
        cygdrive default prefix: 
        build date: Wed Sep 12 23:54:31 EDT 2001
        shared id: cygwin1S3

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