1 | /* Copyright (C) 2008-2024 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | |
19 | /* This file provides functions converting between the 32 and 64 bit |
20 | struct utmp variants. */ |
21 | |
22 | #ifndef _UTMP_CONVERT_H |
23 | #define _UTMP_CONVERT_H 1 |
24 | |
25 | #include <string.h> |
26 | |
27 | #include "utmp32.h" |
28 | |
29 | /* Convert the 64 bit struct utmp value in FROM to the 32 bit version |
30 | returned in TO. */ |
31 | static inline void |
32 | utmp_convert64to32 (const struct utmp *from, struct utmp32 *to) |
33 | { |
34 | #if _HAVE_UT_TYPE - 0 |
35 | to->ut_type = from->ut_type; |
36 | #endif |
37 | #if _HAVE_UT_PID - 0 |
38 | to->ut_pid = from->ut_pid; |
39 | #endif |
40 | memcpy (to->ut_line, from->ut_line, UT_LINESIZE); |
41 | memcpy (to->ut_user, from->ut_user, UT_NAMESIZE); |
42 | #if _HAVE_UT_ID - 0 |
43 | memcpy (to->ut_id, from->ut_id, 4); |
44 | #endif |
45 | #if _HAVE_UT_HOST - 0 |
46 | memcpy (to->ut_host, from->ut_host, UT_HOSTSIZE); |
47 | #endif |
48 | to->ut_exit = from->ut_exit; |
49 | to->ut_session = (int32_t) from->ut_session; |
50 | #if _HAVE_UT_TV - 0 |
51 | to->ut_tv.tv_sec = (int32_t) from->ut_tv.tv_sec; |
52 | to->ut_tv.tv_usec = (int32_t) from->ut_tv.tv_usec; |
53 | #endif |
54 | memcpy (to->ut_addr_v6, from->ut_addr_v6, 4 * 4); |
55 | } |
56 | |
57 | /* Convert the 32 bit struct utmp value in FROM to the 64 bit version |
58 | returned in TO. */ |
59 | static inline void |
60 | utmp_convert32to64 (const struct utmp32 *from, struct utmp *to) |
61 | { |
62 | #if _HAVE_UT_TYPE - 0 |
63 | to->ut_type = from->ut_type; |
64 | #endif |
65 | #if _HAVE_UT_PID - 0 |
66 | to->ut_pid = from->ut_pid; |
67 | #endif |
68 | memcpy (to->ut_line, from->ut_line, UT_LINESIZE); |
69 | memcpy (to->ut_user, from->ut_user, UT_NAMESIZE); |
70 | #if _HAVE_UT_ID - 0 |
71 | memcpy (to->ut_id, from->ut_id, 4); |
72 | #endif |
73 | #if _HAVE_UT_HOST - 0 |
74 | memcpy (to->ut_host, from->ut_host, UT_HOSTSIZE); |
75 | #endif |
76 | to->ut_exit = from->ut_exit; |
77 | to->ut_session = (int64_t) from->ut_session; |
78 | #if _HAVE_UT_TV - 0 |
79 | to->ut_tv.tv_sec = (int64_t) from->ut_tv.tv_sec; |
80 | to->ut_tv.tv_usec = (int64_t) from->ut_tv.tv_usec; |
81 | #endif |
82 | memcpy (to->ut_addr_v6, from->ut_addr_v6, 4 * 4); |
83 | } |
84 | |
85 | #endif /* utmp-convert.h */ |
86 | |