| /* Copyright (C) 1996-2018 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) |
