1 /* Copyright (C) 2017-2018 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
22 #include <libc-lock.h>
23 #include "nisdomain.h"
25 #define MAXDOMAINNAMELEN 1024
27 static char domainname
[MAXDOMAINNAMELEN
];
29 __libc_lock_define_initialized (static, domainname_lock
)
32 __nss_get_default_domain (char **outdomain
)
37 __libc_lock_lock (domainname_lock
);
39 if (domainname
[0] != '\0')
41 if (getdomainname (domainname
, MAXDOMAINNAMELEN
) < 0)
43 else if (strcmp (domainname
, "(none)") == 0)
45 /* If domainname is not set, some systems will return "(none)" */
50 *outdomain
= domainname
;
53 *outdomain
= domainname
;
55 __libc_lock_unlock (domainname_lock
);