| 1 | /* Helper function for utmp functions to see if two entries are equal. |
|---|---|
| 2 | Copyright (C) 1996-2022 Free Software Foundation, Inc. |
| 3 | This file is part of the GNU C Library. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, see |
| 17 | <https://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #include <string.h> |
| 20 | #include <utmp.h> |
| 21 | |
| 22 | #include "utmp-private.h" |
| 23 | |
| 24 | /* Test whether two entries match. */ |
| 25 | static int |
| 26 | __utmp_equal (const struct utmp *entry, const struct utmp *match) |
| 27 | { |
| 28 | return (entry->ut_type == INIT_PROCESS |
| 29 | || entry->ut_type == LOGIN_PROCESS |
| 30 | || entry->ut_type == USER_PROCESS |
| 31 | || entry->ut_type == DEAD_PROCESS) |
| 32 | && (match->ut_type == INIT_PROCESS |
| 33 | || match->ut_type == LOGIN_PROCESS |
| 34 | || match->ut_type == USER_PROCESS |
| 35 | || match->ut_type == DEAD_PROCESS) |
| 36 | && (entry->ut_id[0] && match->ut_id[0] |
| 37 | ? strncmp (entry->ut_id, match->ut_id, sizeof match->ut_id) == 0 |
| 38 | : (strncmp (entry->ut_line, match->ut_line, sizeof match->ut_line) |
| 39 | == 0)); |
| 40 | } |
| 41 |