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/* Copyright (C) 2008-2021 Free Software Foundation, Inc.
Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
/* This file provides functions converting between the 32 and 64 bit
struct utmp variants. */
#ifndef _UTMP_CONVERT_H
#define _UTMP_CONVERT_H 1
#include <string.h>
#include "utmp32.h"
/* Convert the 64 bit struct utmp value in FROM to the 32 bit version
returned in TO. */
static inline void
utmp_convert64to32 (const struct utmp *from, struct utmp32 *to)
{
#if _HAVE_UT_TYPE - 0
to->ut_type = from->ut_type;
#endif
#if _HAVE_UT_PID - 0
to->ut_pid = from->ut_pid;
#endif
memcpy (to->ut_line, from->ut_line, UT_LINESIZE);
memcpy (to->ut_user, from->ut_user, UT_NAMESIZE);
#if _HAVE_UT_ID - 0
memcpy (to->ut_id, from->ut_id, 4);
#endif
#if _HAVE_UT_HOST - 0
memcpy (to->ut_host, from->ut_host, UT_HOSTSIZE);
#endif
to->ut_exit = from->ut_exit;
to->ut_session = (int32_t) from->ut_session;
#if _HAVE_UT_TV - 0
to->ut_tv.tv_sec = (int32_t) from->ut_tv.tv_sec;
to->ut_tv.tv_usec = (int32_t) from->ut_tv.tv_usec;
#endif
memcpy (to->ut_addr_v6, from->ut_addr_v6, 4 * 4);
}
/* Convert the 32 bit struct utmp value in FROM to the 64 bit version
returned in TO. */
static inline void
utmp_convert32to64 (const struct utmp32 *from, struct utmp *to)
{
#if _HAVE_UT_TYPE - 0
to->ut_type = from->ut_type;
#endif
#if _HAVE_UT_PID - 0
to->ut_pid = from->ut_pid;
#endif
memcpy (to->ut_line, from->ut_line, UT_LINESIZE);
memcpy (to->ut_user, from->ut_user, UT_NAMESIZE);
#if _HAVE_UT_ID - 0
memcpy (to->ut_id, from->ut_id, 4);
#endif
#if _HAVE_UT_HOST - 0
memcpy (to->ut_host, from->ut_host, UT_HOSTSIZE);
#endif
to->ut_exit = from->ut_exit;
to->ut_session = (int64_t) from->ut_session;
#if _HAVE_UT_TV - 0
to->ut_tv.tv_sec = (int64_t) from->ut_tv.tv_sec;
to->ut_tv.tv_usec = (int64_t) from->ut_tv.tv_usec;
#endif
memcpy (to->ut_addr_v6, from->ut_addr_v6, 4 * 4);
}
#endif /* utmp-convert.h */
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