s3: smbd/connection: added routines to compute share connections

Added routines to compute share connections and used it
in srvsvc NetShareEnum call.

Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Richard Sharpe <realrichardsharpe@gmail.com>

Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Aug 13 07:42:23 CEST 2013 on sn-devel-104
docs: Add man vfs_syncops.8 to waf build.

Signed-off-by: Karolin Seeger <kseeger@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: David Disseldorp <ddiss@samba.org>

Part of a fix for bug #7364 - man vfs_syncops missing.

Autobuild-User(master): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(master): Tue Aug 13 12:09:45 CEST 2013 on sn-devel-104
s3-winbind: Fix a segfault passing NULL to a fstring argument.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=10082

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>

Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Tue Aug 13 13:58:26 CEST 2013 on sn-devel-104
s3-winbindd: fix fallback to ncacn_np in cm_connect_lsat().

Fallback to lsa named-pipe connection when tcp connection has failed twice (it
could be a trusted domain connection where we cannot setup a secure channel).

Guenther

BUG: https://bugzilla.samba.org/show_bug.cgi?id=9615
BUG: https://bugzilla.samba.org/show_bug.cgi?id=9899

Signed-off-by: Günther Deschner <gd@samba.org>
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Tested-by: Christof Schmitt <christof.schmitt@us.ibm.com>

Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Tue Aug 13 20:55:33 CEST 2013 on sn-devel-104