s3:libsmb: Fix errno for failed authentication in SMBC_server_internal()

In SMBC_server_internal(), when authentication fails, the errno value is
currently hard-coded to EPERM, while it should be EACCES instead. Use the
NT_STATUS map to set the appropriate value.

This bug was found because it breaks listing printers protected by
authentication in GNOME Control Panel.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14983



Signed-off-by: Elia Geretto <elia.f.geretto@gmail.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>

Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed Mar 16 19:44:18 UTC 2022 on sn-devel-184

(cherry picked from commit 70b9977a)

source3/libsmb/libsmb_server.c

@@ -572,7 +572,7 @@ SMBC_server_internal(TALLOC_CTX *ctx,
 		    !NT_STATUS_IS_OK(cli_session_setup_anon(c))) {
 
                         cli_shutdown(c);
-                        errno = EPERM;
+			errno = map_errno_from_nt_status(status);
                         return NULL;
                 }
 	}