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87 lines
2.6 KiB
C
87 lines
2.6 KiB
C
/* Copyright (C) 2008-2017 Free Software Foundation, Inc.
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Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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/* This file provides functions converting between the 32 and 64 bit
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struct utmp variants. */
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#ifndef _UTMP_CONVERT_H
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#define _UTMP_CONVERT_H 1
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#include <string.h>
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#include "utmp32.h"
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/* Convert the 64 bit struct utmp value in FROM to the 32 bit version
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returned in TO. */
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static inline void
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utmp_convert64to32 (const struct utmp *from, struct utmp32 *to)
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{
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#if _HAVE_UT_TYPE - 0
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to->ut_type = from->ut_type;
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#endif
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#if _HAVE_UT_PID - 0
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to->ut_pid = from->ut_pid;
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#endif
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memcpy (to->ut_line, from->ut_line, UT_LINESIZE);
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memcpy (to->ut_user, from->ut_user, UT_NAMESIZE);
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#if _HAVE_UT_ID - 0
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memcpy (to->ut_id, from->ut_id, 4);
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#endif
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#if _HAVE_UT_HOST - 0
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memcpy (to->ut_host, from->ut_host, UT_HOSTSIZE);
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#endif
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to->ut_exit = from->ut_exit;
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to->ut_session = (int32_t) from->ut_session;
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#if _HAVE_UT_TV - 0
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to->ut_tv.tv_sec = (int32_t) from->ut_tv.tv_sec;
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to->ut_tv.tv_usec = (int32_t) from->ut_tv.tv_usec;
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#endif
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memcpy (to->ut_addr_v6, from->ut_addr_v6, 4 * 4);
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}
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/* Convert the 32 bit struct utmp value in FROM to the 64 bit version
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returned in TO. */
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static inline void
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utmp_convert32to64 (const struct utmp32 *from, struct utmp *to)
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{
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#if _HAVE_UT_TYPE - 0
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to->ut_type = from->ut_type;
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#endif
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#if _HAVE_UT_PID - 0
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to->ut_pid = from->ut_pid;
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#endif
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memcpy (to->ut_line, from->ut_line, UT_LINESIZE);
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memcpy (to->ut_user, from->ut_user, UT_NAMESIZE);
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#if _HAVE_UT_ID - 0
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memcpy (to->ut_id, from->ut_id, 4);
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#endif
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#if _HAVE_UT_HOST - 0
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memcpy (to->ut_host, from->ut_host, UT_HOSTSIZE);
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#endif
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to->ut_exit = from->ut_exit;
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to->ut_session = (int64_t) from->ut_session;
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#if _HAVE_UT_TV - 0
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to->ut_tv.tv_sec = (int64_t) from->ut_tv.tv_sec;
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to->ut_tv.tv_usec = (int64_t) from->ut_tv.tv_usec;
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#endif
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memcpy (to->ut_addr_v6, from->ut_addr_v6, 4 * 4);
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}
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#endif /* utmp-convert.h */
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