On Feb 24 15:38, Roland Mainz via Cygwin wrote: > On Thu, Feb 22, 2024 at 8:11 PM Corinna Vinschen via Cygwin > <cygwin@cygwin.com> wrote: > > On Feb 22 18:38, Roland Mainz via Cygwin wrote: > > > If I switch the current user's group with /usr/bin/newgrp, how can a > > > (native) Win32 process use > > > |GetTokenInformation(GetCurrentThreadToken(), ...)| to find out which > > > group is the new "current group" (e.g. which |TokenInformationClass| > > > should I use) ? > > > > PSID sidbuf = (PSID) alloca (SECURITY_MAX_SID_SIZE); > [snip] > > Win32/NT API question: All known SIDs will fit into > |SECURITY_MAX_SID_SIZE| bytes, right ? I'm asking because right now > the ms-nfs41-client code assumes that all SIDs use a variable amount > of memory, and we always have to ask the Win32/NT API about the number > of bytes to allocate. If |SECURITY_MAX_SID_SIZE| is the global maximum > limit for all Windows versions, then we could simplify the code a > lot...
Yes. ACLs are size restricted to 64K, though, but that shouldn't be much of a problem usally. Corinna -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
