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![Warner Losh](/assets/img/avatar_default.png)
These sys/cdefs.h are not needed. Purge them. They are mostly left-over from the $FreeBSD$ removal. A few in libc are still required for macros that cdefs.h defines. Keep those. Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D42385
175 lines
4.5 KiB
C
175 lines
4.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2010 Ed Schouten <ed@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "namespace.h"
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#include <sys/endian.h>
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#include <sys/param.h>
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#include <sys/time.h>
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#include <stdlib.h>
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#include <string.h>
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#include <utmpx.h>
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#include "utxdb.h"
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#include "un-namespace.h"
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#define UTOF_STRING(ut, fu, field) do { \
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strncpy((fu)->fu_ ## field, (ut)->ut_ ## field, \
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MIN(sizeof (fu)->fu_ ## field, sizeof (ut)->ut_ ## field)); \
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} while (0)
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#define UTOF_ID(ut, fu) do { \
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memcpy((fu)->fu_id, (ut)->ut_id, \
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MIN(sizeof (fu)->fu_id, sizeof (ut)->ut_id)); \
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} while (0)
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#define UTOF_PID(ut, fu) do { \
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(fu)->fu_pid = htobe32((ut)->ut_pid); \
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} while (0)
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#define UTOF_TYPE(ut, fu) do { \
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(fu)->fu_type = (ut)->ut_type; \
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} while (0)
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#define UTOF_TV(fu) do { \
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struct timeval tv; \
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gettimeofday(&tv, NULL); \
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(fu)->fu_tv = htobe64((uint64_t)tv.tv_sec * 1000000 + \
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(uint64_t)tv.tv_usec); \
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} while (0)
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void
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utx_to_futx(const struct utmpx *ut, struct futx *fu)
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{
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memset(fu, 0, sizeof *fu);
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switch (ut->ut_type) {
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case BOOT_TIME:
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case OLD_TIME:
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case NEW_TIME:
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/* Extension: shutdown time. */
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case SHUTDOWN_TIME:
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break;
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case USER_PROCESS:
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UTOF_ID(ut, fu);
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UTOF_STRING(ut, fu, user);
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UTOF_STRING(ut, fu, line);
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/* Extension: host name. */
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UTOF_STRING(ut, fu, host);
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UTOF_PID(ut, fu);
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break;
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case INIT_PROCESS:
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UTOF_ID(ut, fu);
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UTOF_PID(ut, fu);
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break;
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case LOGIN_PROCESS:
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UTOF_ID(ut, fu);
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UTOF_STRING(ut, fu, user);
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UTOF_STRING(ut, fu, line);
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UTOF_PID(ut, fu);
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break;
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case DEAD_PROCESS:
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UTOF_ID(ut, fu);
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UTOF_PID(ut, fu);
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break;
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default:
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fu->fu_type = EMPTY;
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return;
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}
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UTOF_TYPE(ut, fu);
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UTOF_TV(fu);
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}
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#define FTOU_STRING(fu, ut, field) do { \
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strncpy((ut)->ut_ ## field, (fu)->fu_ ## field, \
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MIN(sizeof (ut)->ut_ ## field - 1, sizeof (fu)->fu_ ## field)); \
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} while (0)
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#define FTOU_ID(fu, ut) do { \
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memcpy((ut)->ut_id, (fu)->fu_id, \
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MIN(sizeof (ut)->ut_id, sizeof (fu)->fu_id)); \
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} while (0)
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#define FTOU_PID(fu, ut) do { \
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(ut)->ut_pid = be32toh((fu)->fu_pid); \
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} while (0)
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#define FTOU_TYPE(fu, ut) do { \
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(ut)->ut_type = (fu)->fu_type; \
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} while (0)
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#define FTOU_TV(fu, ut) do { \
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uint64_t t; \
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t = be64toh((fu)->fu_tv); \
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(ut)->ut_tv.tv_sec = t / 1000000; \
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(ut)->ut_tv.tv_usec = t % 1000000; \
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} while (0)
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struct utmpx *
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futx_to_utx(const struct futx *fu)
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{
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static _Thread_local struct utmpx *ut;
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if (ut == NULL) {
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ut = calloc(1, sizeof *ut);
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if (ut == NULL)
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return (NULL);
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} else
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memset(ut, 0, sizeof *ut);
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switch (fu->fu_type) {
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case BOOT_TIME:
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case OLD_TIME:
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case NEW_TIME:
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/* Extension: shutdown time. */
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case SHUTDOWN_TIME:
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break;
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case USER_PROCESS:
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FTOU_ID(fu, ut);
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FTOU_STRING(fu, ut, user);
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FTOU_STRING(fu, ut, line);
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/* Extension: host name. */
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FTOU_STRING(fu, ut, host);
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FTOU_PID(fu, ut);
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break;
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case INIT_PROCESS:
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FTOU_ID(fu, ut);
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FTOU_PID(fu, ut);
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break;
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case LOGIN_PROCESS:
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FTOU_ID(fu, ut);
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FTOU_STRING(fu, ut, user);
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FTOU_STRING(fu, ut, line);
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FTOU_PID(fu, ut);
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break;
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case DEAD_PROCESS:
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FTOU_ID(fu, ut);
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FTOU_PID(fu, ut);
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break;
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default:
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ut->ut_type = EMPTY;
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return (ut);
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}
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FTOU_TYPE(fu, ut);
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FTOU_TV(fu, ut);
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return (ut);
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}
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