[PATCH 08/12] (resend) LookupAccountSidW() - handles first user account

[Paul Bryan Roberts]

LookupAccountNameW() has a stubbed but non-empty, incomplete, buggy
implementation.  It fails a number of unit tests but Wine code relies on
this.

This is series of patches that provide what may be a reasonable first
pass implementation of LookupAccountNameA() and LookupAccountNameW() that:

    - passes existing units tests for LookupAccountName
    - works for well known SIDs
    - works for 'first user account'
    - allows progress towards the resolution of Bug 14334

The conformance tests for LookupAccountName() use LookupAccountSid() so
if the former is to support the 'first user account' SID then so must
the latter and the latter needs prior implementation.

Wot, no unit test ?

No -  there already is one.  It just doesn't as a failure.  Here's the
before and after output from my Wine test VM followed by the
'equivalent' from my native Windows test VM:


before: security.c:1109:  S-1-5-21-1548840911-2268645679-1347247377-1000
couldn't be mapped
---
after:  security.c:1107:  S-1-5-21-1548840911-2268645679-1347247377-1000
holly\ubuntu 1


before: security.c:1107:  S-1-5-21-1715567821-287218729-725345543-1000
W2KSP4\pbr 1
---
after:  security.c:1107:  S-1-5-21-1715567821-287218729-725345543-1000
W2KSP4\pbr 1


Why remove the trace from LookupAccountSidA() ?  'cos I was admonished
for not removing 'superflous' trace in an earlier submission.


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