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/* Copyright (C) 1996-2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>
and Paul Janzen <pcj@primenet.com>, 1996.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <libc-lock.h>
#include <errno.h>
#include <stdlib.h>
#include <utmp.h>
#include "utmp-private.h"
/* We have to use the lock in getutent_r.c. */
__libc_lock_define (extern, __libc_utmp_lock attribute_hidden)
int
__getutid_r (const struct utmp *id, struct utmp *buffer, struct utmp **result)
{
#if (_HAVE_UT_ID - 0) && (_HAVE_UT_TYPE - 0)
int retval;
/* Test whether ID has any of the legal types. */
if (id->ut_type != RUN_LVL && id->ut_type != BOOT_TIME
&& id->ut_type != OLD_TIME && id->ut_type != NEW_TIME
&& id->ut_type != INIT_PROCESS && id->ut_type != LOGIN_PROCESS
&& id->ut_type != USER_PROCESS && id->ut_type != DEAD_PROCESS)
/* No, using '<' and '>' for the test is not possible. */
{
__set_errno (EINVAL);
*result = NULL;
return -1;
}
__libc_lock_lock (__libc_utmp_lock);
retval = (*__libc_utmp_jump_table->getutid_r) (id, buffer, result);
__libc_lock_unlock (__libc_utmp_lock);
return retval;
#else /* !_HAVE_UT_ID && !_HAVE_UT_TYPE */
__set_errno (ENOSYS);
return -1;
#endif
}
libc_hidden_def (__getutid_r)
weak_alias (__getutid_r, getutid_r)
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