On Nov 15 15:45, Christian Franke wrote:
> Corinna Vinschen wrote:
> >>The actual test scripts & tools from this use case pass local usernames
> >>from/to non-Cygwin programs and rely on the fact that Cygwin and Windows
> >>username match.
> >>
> >>For the long term, have some cyguser, cyggroup tools (similar to cygpath)
> >>which convert the names would be helpful.
> >Feel free to provide them. I'm not quite sure what kind of conversion
> >you're thinking about. Cygwin->Windows? If so, you can get that
> >with simple scripts:
> >
> > pwd_entry=$(/usr/bin/getent passwd "$username")
> > # Extract Windows username and domain
> > tmp="${pwd_entry#*:*:*:*U-}"
> > tmp="${pwd_entry%%,*}"
> > domain="${tmp%\\*}"
> > username="${tmp#*\\}"
>
> Works, except when Cygwin does not provide a "U-*\NAME," in the gecos field.
> This is the case for Local Service, Network Service and Administrators.This can be fixed easily. > Tested in db-only mode with 1.7.34-001: > > $ getent passwd localservice > localservice:*:19:19:,S-1-5-19:/:/sbin/nologin > > > BTW, TrustedInstaller is not found by getent: > > $ getent passwd TrustedInstaller ; echo $? > 2 > > $ getent passwd 328384 ; echo $? > 2 Oh, right. This affects all "NT SERVICE" accounts. However, this also shows another problem. Every service has its own SID under the NT SERVICE scheme. This allows to print any service as a passwd or group entry. To avoid collisions I think the right thing to do here is to always prefix NT SERVICE accounts, including TrustedInstaller: NT SERVICE+TrustedInstaller:*:328384:328384:U-NT SERVICE\TrustedInstaller,S-1-5-80-956008885-3418522649-1831038044-1853292631-2271478464:/:/sbin/nologin I applied a patch for both of the above to CVS. > What will be the future 'official' way for the opposite Windows->Cygwin > conversion? Some tool that uses CW_CYGNAME_FROM_WINNAME ? In theory, the right tool for this would be... getent. Just as I added a way to use the S-<sid> syntax, I can add a way to use the U-domain\username syntax. This allows to use the same tool for both directions and then simply filter out the account name you need. Thanks, Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Maintainer cygwin AT cygwin DOT com Red Hat
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