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82c26126 | 1 | /* Helper function for utmp functions to see if two entries are equal. |
bfff8b1b | 2 | Copyright (C) 1996-2017 Free Software Foundation, Inc. |
82c26126 RM |
3 | This file is part of the GNU C Library. |
4 | Contributed by Ulrich Drepper <drepper@cygnus.com> | |
5 | and Paul Janzen <pcj@primenet.com>, 1996. | |
6 | ||
7 | The GNU C Library is free software; you can redistribute it and/or | |
8 | modify it under the terms of the GNU Lesser General Public | |
9 | License as published by the Free Software Foundation; either | |
10 | version 2.1 of the License, or (at your option) any later version. | |
11 | ||
12 | The GNU C Library is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Lesser General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
18 | License along with the GNU C Library; if not, see |
19 | <http://www.gnu.org/licenses/>. */ | |
82c26126 RM |
20 | |
21 | #include <string.h> | |
22 | #include <utmp.h> | |
23 | ||
24 | #include "utmp-private.h" | |
25 | ||
26 | /* Test whether two entries match. */ | |
27 | static int | |
28 | __utmp_equal (const struct utmp *entry, const struct utmp *match) | |
29 | { | |
30 | return | |
31 | ( | |
32 | #if _HAVE_UT_TYPE - 0 | |
33 | (entry->ut_type == INIT_PROCESS | |
34 | || entry->ut_type == LOGIN_PROCESS | |
35 | || entry->ut_type == USER_PROCESS | |
36 | || entry->ut_type == DEAD_PROCESS) | |
37 | && | |
38 | (match->ut_type == INIT_PROCESS | |
39 | || match->ut_type == LOGIN_PROCESS | |
40 | || match->ut_type == USER_PROCESS | |
41 | || match->ut_type == DEAD_PROCESS) | |
42 | && | |
43 | #endif | |
44 | #if _HAVE_UT_ID - 0 | |
45 | (entry->ut_id[0] && match->ut_id[0] | |
46 | ? strncmp (entry->ut_id, match->ut_id, sizeof match->ut_id) == 0 | |
47 | : strncmp (entry->ut_line, match->ut_line, sizeof match->ut_line) == 0) | |
48 | #else | |
49 | strncmp (entry->ut_line, match->ut_line, sizeof match->ut_line) == 0 | |
50 | #endif | |
51 | ); | |
52 | } |