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Cygwin access denied
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#1
03-31-2008
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Cygwin access denied
On XP/Pro, \cygwin\bin\sed.exe gets Access Denied; Why?
what am I missing? Code:
Jeff@ltbeard /usr/bin
$ sed.exe -h
bash: /usr/bin/sed.exe: Permission denied
yet cygwin perms are correct
$ ls -l sed.exe
-rwxrwxr-x 1 nMaster Users 97280 Aug 2 2006 sed.exe
and XP ACLs look good (to me at least)
C:\cygwin\bin>cacls ..
C:\cygwin BUILTIN\Administrators:(OI)(CI)F
NT AUTHORITY\SYSTEM:(OI)(CI)F
<Account Domain not found>F
CREATOR OWNER:(OI)(CI)(IO)F
BUILTIN\Users:(OI)(CI)R
BUILTIN\Users:(CI)(special access:)
FILE_APPEND_DATA
BUILTIN\Users:(CI)(special access:)
FILE_WRITE_DATA
C:\cygwin\bin>cacls .
C:\cygwin\bin BUILTIN\Administrators:(OI)(CI)(NP)F
BUILTIN\Users:(OI)(CI)R
BUILTIN\Administrators:(OI)(CI)F
NT AUTHORITY\SYSTEM:(OI)(CI)F
LTBEARD\Jeff:F
CREATOR OWNER:(OI)(CI)(IO)F
BUILTIN\Users:(OI)(CI)R
BUILTIN\Users:(CI)(special access:)
FILE_APPEND_DATA
BUILTIN\Users:(CI)(special access:)
FILE_WRITE_DATA
C:\cygwin\bin>cacls sed.exe
C:\cygwin\bin\sed.exe LTBEARD\nMaster:(special access:)
STANDARD_RIGHTS_ALL
DELETE
READ_CONTROL
WRITE_DAC
WRITE_OWNER
SYNCHRONIZE
STANDARD_RIGHTS_REQUIRED
FILE_GENERIC_READ
FILE_GENERIC_WRITE
FILE_GENERIC_EXECUTE
FILE_READ_DATA
FILE_WRITE_DATA
FILE_APPEND_DATA
FILE_READ_EA
FILE_WRITE_EA
FILE_EXECUTE
FILE_READ_ATTRIBUTES
FILE_WRITE_ATTRIBUTES
BUILTIN\Users:R
Everyone:R
BUILTIN\Users:(special access:)
WRITE_DAC
SYNCHRONIZE
FILE_WRITE_DATA
FILE_WRITE_EA
FILE_EXECUTE
FILE_WRITE_ATTRIBUTES
(and yes, I've reinstalled it twice; first just overlay the program, second, delete the program first (to clear the ACL) and then reinstall -- same error  )Last edited by jobeard; 03-31-2008 at 03:45 PM. 
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#2
04-01-2008
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It could be any of the DLLs or data files that sed is trying to access. Maybe run the file monitor from sysinternals and see which file access is denied.
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#3
04-01-2008
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Quote:
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#4
04-02-2008
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Also, I forgot the cool Linux (also in Cygwin) utility called strace that shows you what system calls a program uses and the results of these.
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#5
04-02-2008
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cool -- I forgot that too. However ...
$ strace -d -o ./strace.log /usr/bin/sed.exewhile tracing LS works perfectly! The puzzle continues ...
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#6
04-03-2008
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filemon results
Code:
09:50 bash.exe:1856 FASTIO_QUERY_OPEN C:\cygwin\bin\sed.exe SUCCESS Attributes: A 09:50 bash.exe:1856 IRP_MJ_CREATE C:\cygwin\bin\sed.exe SUCCESS Options: Open Access: 00020080 09:50 bash.exe:1856 IRP_MJ_QUERY_INFORMATION C:\cygwin\bin\sed.exe SUCCESS FileNameInformation 09:50 bash.exe:1856 IRP_MJ_QUERY_VOLUME_INFORMATION C:\cygwin\bin\sed.exe SUCCESS FileFsVolumeInformation 09:50 bash.exe:1856 IRP_MJ_QUERY_INFORMATION C:\cygwin\bin\sed.exe SUCCESS FileAllInformation 09:50 bash.exe:1856 IRP_MJ_QUERY_SECURITY C:\cygwin\bin\sed.exe BUFFER OVERFLOW Code:
09:50 bash.exe:1856 IRP_MJ_CREATE C:\cygwin\bin\sed.exe SUCCESS Options: Open Access: 001000A1 09:50 bash.exe:1856 IRP_MJ_QUERY_INFORMATION C:\cygwin\bin\sed.exe SUCCESS FileNameInformation 09:50 bash.exe:1856 FASTIO_QUERY_BASIC_INFO C:\cygwin\bin\sed.exe SUCCESS Attributes: A 09:50 bash.exe:1856 FASTIO_QUERY_STANDARD_INFO C:\cygwin\bin\sed.exe SUCCESS Length: 97280 09:50 bash.exe:1856 IRP_MJ_QUERY_INFORMATION C:\cygwin\bin\sed.exe SUCCESS FileNameInformation 09:50 bash.exe:1856 FASTIO_QUERY_OPEN C:\cygwin\bin\sed.exe SUCCESS Attributes: A 09:50 bash.exe:1856 FASTIO_QUERY_STANDARD_INFO C:\cygwin\bin\sed.exe SUCCESS Length: 97280 09:50 bash.exe:1856 FASTIO_QUERY_STANDARD_INFO C:\cygwin\bin\sed.exe SUCCESS Length: 97280 09:50 bash.exe:1856 IRP_MJ_QUERY_INFORMATION C:\cygwin\bin\sed.exe SUCCESS FileNameInformation 09:50 bash.exe:1856 IRP_MJ_CREATE C:\cygwin\bin\sed.exe SUCCESS Options: Open Access: Read 09:50 bash.exe:1856 FASTIO_QUERY_STANDARD_INFO C:\cygwin\bin\sed.exe SUCCESS Length: 97280 09:50 bash.exe:1856 IRP_MJ_READ C:\cygwin\bin\sed.exe SUCCESS Offset: 0 Length: 8192 09:50 System:4 IRP_MJ_CLOSE C:\cygwin\bin\sed.exe SUCCESS
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#7
04-07-2008
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I give up
I found a static linked version of sed in an archive name UnxUtils.zip
I extracted ONLY sed.exe, stored it into /usr/local/bin and verified that it would run. rm -i /usr/bin/sed.exe then cleaned up the issue. I had previously attempted to reinstall sed frm the cygwin setup service, but to no avail, so I was forced into this approach. It drives me nuts to not understand what caused this, but sometimes you just have to move on
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