Using thread-specific credentials on Linux in Samba with glibc.

[Roland McGrath]

> Just to make things extremely clear, what we're hoping for is
> an acknowlegement from the glibc maintainers that using syscall()
> in this way to get per-process thread credentials on Linux
> platforms is allowed by glibc, in that if it gets accidently
> broken in future by glibc changes (as can happen with any
> software of course :-) then it would be considered a bug.

The context remains utterly muddy and we are not going to read a giant
thread to tease out what you are asking.  Show us an example of a use of
the syscall function that you are seeking a clarification on the validity of.