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