2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2010 Ed Schouten <ed@FreeBSD.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include "namespace.h"
33 #include <sys/endian.h>
34 #include <sys/param.h>
40 #include "un-namespace.h"
42 #define UTOF_STRING(ut, fu, field) do { \
43 strncpy((fu)->fu_ ## field, (ut)->ut_ ## field, \
44 MIN(sizeof (fu)->fu_ ## field, sizeof (ut)->ut_ ## field)); \
46 #define UTOF_ID(ut, fu) do { \
47 memcpy((fu)->fu_id, (ut)->ut_id, \
48 MIN(sizeof (fu)->fu_id, sizeof (ut)->ut_id)); \
50 #define UTOF_PID(ut, fu) do { \
51 (fu)->fu_pid = htobe32((ut)->ut_pid); \
53 #define UTOF_TYPE(ut, fu) do { \
54 (fu)->fu_type = (ut)->ut_type; \
56 #define UTOF_TV(fu) do { \
58 gettimeofday(&tv, NULL); \
59 (fu)->fu_tv = htobe64((uint64_t)tv.tv_sec * 1000000 + \
60 (uint64_t)tv.tv_usec); \
64 utx_to_futx(const struct utmpx *ut, struct futx *fu)
67 memset(fu, 0, sizeof *fu);
69 switch (ut->ut_type) {
73 /* Extension: shutdown time. */
78 UTOF_STRING(ut, fu, user);
79 UTOF_STRING(ut, fu, line);
80 /* Extension: host name. */
81 UTOF_STRING(ut, fu, host);
90 UTOF_STRING(ut, fu, user);
91 UTOF_STRING(ut, fu, line);
107 #define FTOU_STRING(fu, ut, field) do { \
108 strncpy((ut)->ut_ ## field, (fu)->fu_ ## field, \
109 MIN(sizeof (ut)->ut_ ## field - 1, sizeof (fu)->fu_ ## field)); \
111 #define FTOU_ID(fu, ut) do { \
112 memcpy((ut)->ut_id, (fu)->fu_id, \
113 MIN(sizeof (ut)->ut_id, sizeof (fu)->fu_id)); \
115 #define FTOU_PID(fu, ut) do { \
116 (ut)->ut_pid = be32toh((fu)->fu_pid); \
118 #define FTOU_TYPE(fu, ut) do { \
119 (ut)->ut_type = (fu)->fu_type; \
121 #define FTOU_TV(fu, ut) do { \
123 t = be64toh((fu)->fu_tv); \
124 (ut)->ut_tv.tv_sec = t / 1000000; \
125 (ut)->ut_tv.tv_usec = t % 1000000; \
129 futx_to_utx(const struct futx *fu)
132 static struct utmpx *ut;
134 static _Thread_local struct utmpx *ut;
138 ut = calloc(1, sizeof *ut);
142 memset(ut, 0, sizeof *ut);
144 switch (fu->fu_type) {
148 /* Extension: shutdown time. */
153 FTOU_STRING(fu, ut, user);
154 FTOU_STRING(fu, ut, line);
155 /* Extension: host name. */
156 FTOU_STRING(fu, ut, host);
165 FTOU_STRING(fu, ut, user);
166 FTOU_STRING(fu, ut, line);