Hi folks,
I just uploaded getent-2.18.90-4. getent is a Glibc tool which allows to fetch host, passwd, group, protocol, and service information via a simple tool. The -4 option introduces the -w/--windows command line option. Together with the "group" and "passwd" commands, it generates Cygwin<->Windows account mapping records in the following form: $ getent -w passwd cygwin_username cygwin_username:cygwin_uid:windows_domain\windows_username:SID $ getent -w group cygwin_groupname cygwin_groupname:cygwin_uid:windows_domain\windows_groupname:SID Real life example: $ getent -w passwd Administrator Administrator:1049076:VINSCHEN\Administrator:S-1-5-21-2913048732-1697188782-3448811101-500 $ getent -w group Administrators Administrators:544:BUILTIN\Administrators:S-1-5-32-544 Given the -4 version came so fast after -3, here's the -3 change again to avoid confusion: The -3 version introduced the ability to ask for passwd and group entries via Windows username/groupname, using the "U-" prefix as in Cygwin's pw_gecos field: $ getent passwd U-BUILTIN\\Administrator Administrators:*:544:544:,S-1-5-32-544:: You can skip the domain name. In this case getent relies on the default account name resolution order of the underlying LookupAccountName(*) function $ getent passwd U-Administrator Administrators:*:544:544:,S-1-5-32-544:: This release also fixes the problem that under current versions of Cygwin an entry for the user/group name "????????" is printed when enumerating user or group accounts. ===================================================================== IMPORTANT (not only) FOR CYGWIN PACKAGE MAINTAINERS ===================================================================== The most important aspect for Cygwin for the near future is this: With the new passwd/group code just in testing (see https://cygwin.com/preliminary-ntsec.html for lots and lots of information), tools and scripts must not rely anymore on being able to grep user and group information from /etc/passwd and /etc/group! The new way to read passwd and group information from, for instance, service installation helper scripts, is to use the getent tool for this purpose. I'd like to urge all maintainers which provide such scripts to look into their packages and fix them to use the getent tool, rather than grep'ing /etc/passwd and /etc/group directly. ===================================================================== (*) http://msdn.microsoft.com/en-us/library/windows/desktop/aa379159%28v=vs.85%29.aspx Have fun, Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Maintainer cygwin AT cygwin DOT com Red Hat -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple