103 lines
3.3 KiB
C
103 lines
3.3 KiB
C
/* Copyright (C) 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1997.
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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 Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <fcntl.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <utmp.h>
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#include "xtmp.h"
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/* Convert the entry XT to the new utmp format and store it in UT.
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Fields in UT that were not present in the old utmp format are
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initialized to zero. */
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void
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xtmp_to_utmp (const struct xtmp *xtmp, struct utmp *utmp)
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{
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memset (utmp, 0, sizeof (struct utmp));
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#if _HAVE_XT_TYPE - 0
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utmp->ut_type = xtmp->xt_type;
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#endif
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#if _HAVE_XT_PID - 0
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utmp->ut_pid = xtmp->xt_pid;
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#endif
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strncpy (utmp->ut_line, xtmp->xt_line, XT_LINESIZE);
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#if _HAVE_XT_ID - 0
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strncpy (utmp->ut_id, xtmp->xt_id, sizeof xtmp->xt_id);
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#endif
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utmp->ut_time = xtmp->xt_time;
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strncpy (utmp->ut_user, xtmp->xt_user, XT_NAMESIZE);
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#if _HAVE_XT_HOST - 0
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strncpy (utmp->ut_host, xtmp->xt_host, XT_HOSTSIZE);
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#endif
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utmp->ut_addr = xtmp->xt_addr;
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}
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/* Convert the entry UTMP to the old utmp format and store it in XTMP. */
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void
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utmp_to_xtmp (const struct utmp *utmp, struct xtmp *xtmp)
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{
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memset (xtmp, 0, sizeof (struct xtmp));
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#if _HAVE_XT_TYPE - 0
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xtmp->xt_type = utmp->ut_type;
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#endif
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#if _HAVE_XT_PID - 0
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xtmp->xt_pid = utmp->ut_pid;
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#endif
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strncpy (xtmp->xt_line, utmp->ut_line, XT_LINESIZE);
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xtmp->xt_line[XT_LINESIZE] = '\0';
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#if _HAVE_XT_ID - 0
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strncpy (xtmp->xt_id, utmp->ut_id, sizeof xtmp->xt_id);
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#endif
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xtmp->xt_time = utmp->ut_time;
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strncpy (xtmp->xt_user, utmp->ut_user, XT_NAMESIZE);
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#if _HAVE_XT_HOST - 0
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strncpy (xtmp->xt_host, utmp->ut_host, XT_HOSTSIZE);
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xtmp->xt_host[XT_HOSTSIZE] = '\0';
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#endif
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xtmp->xt_addr = utmp->ut_addr;
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}
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/* Compare an old style entry XTMP with a new style entry UTMP. The
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function returns 1 if the information that is in both old and new
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style entries is identical. Otherwise this function returns 0. */
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int
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compare_entry (const struct utmp *xtmp, const struct utmp *utmp)
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{
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return
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(
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#if _HAVE_XT_TYPE - 0
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xtmp->ut_type == utmp->ut_type
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#endif
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#if _HAVE_XT_PID - 0
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&& xtmp->ut_pid == utmp->ut_pid
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#endif
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&& !strncmp (xtmp->ut_line, utmp->ut_line, XT_LINESIZE - 1)
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#if _HAVE_XT_ID - 0
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&& !strncmp (xtmp->ut_id, utmp->ut_id, sizeof utmp->ut_id)
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#endif
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&& xtmp->ut_time == utmp->ut_time
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&& !strncmp (xtmp->ut_user, utmp->ut_user, XT_NAMESIZE)
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#if _HAVE_XT_HOST - 0
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&& !strncmp (xtmp->ut_host, utmp->ut_host, XT_HOSTSIZE - 1)
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#endif
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&& xtmp->ut_addr == utmp->ut_addr);
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}
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