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64d1e08ea8
This has been tested that local lookup still works with and without an installed libnss_nis, and that NIS lookup works when libnss_nis is available.
59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
/* Copyright (C) 2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <unistd.h>
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#include <libc-lock.h>
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#include "nisdomain.h"
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#define MAXDOMAINNAMELEN 1024
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static char domainname[MAXDOMAINNAMELEN];
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__libc_lock_define_initialized (static, domainname_lock)
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int
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__nss_get_default_domain (char **outdomain)
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{
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int result = 0;
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*outdomain = NULL;
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__libc_lock_lock (domainname_lock);
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if (domainname[0] != '\0')
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{
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if (getdomainname (domainname, MAXDOMAINNAMELEN) < 0)
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result = errno;
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else if (strcmp (domainname, "(none)") == 0)
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{
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/* If domainname is not set, some systems will return "(none)" */
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domainname[0] = '\0';
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result = ENOENT;
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}
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else
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*outdomain = domainname;
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}
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else
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*outdomain = domainname;
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__libc_lock_unlock (domainname_lock);
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return result;
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}
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