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Re: POSIX permission mapping and NULL SIDs


On 6/24/16, 3:53 PM, "cygwin-owner@cygwin.com on behalf of Bill
Zissimopoulos" <cygwin-owner@cygwin.com on behalf of
billziss@navimatics.com> wrote:


>One caveat is that Cygwin already maps S-1-5-7 to uid 7. So does that mean
>that 7==nobody in Cygwinâs case?

Here is output from Cygwin/SSHFS after mapping ânobody/nogroupâ to S-1-5-7:
<<
billziss@windows:~$ cd /cygdrive/y
billziss@windows:/cygdrive/y$ ls -la
total 8
drwxr-xr-x 1 billziss ANONYMOUS LOGON  0 Jun 23 23:57 .
dr-xr-xr-x 1 billziss None             0 Jun 24 15:56 ..
-rw-r--r-- 1 billziss ANONYMOUS LOGON 15 Jun 23 23:57 Foo.txt
billziss@windows:/cygdrive/y$ cacls Foo.txt /S
Y:\Foo.txt 
"D:P(A;;0x1f019f;;;S-1-5-21-383059176-2062642591-2866287538-1001)(A;;FR;;;A
N)(A;;FR;;;WD)"

billziss@windows:/cygdrive/y$ ls -lna
total 8
drwxr-xr-x 1 197609      7  0 Jun 23 23:57 .
dr-xr-xr-x 1 197609 197121  0 Jun 24 15:58 ..
-rw-r--r-- 1 197609      7 15 Jun 23 23:57 Foo.txt
billziss@windows:/cygdrive/y$

>>


Opinions?

Bill


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