sysutmp.h

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#pragma once
/*
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */
 
/**
 * $Id: 1b236ef092acb77dff503ae33a8dbc594abd382e $
 *
 * @file lib/server/sysutmp.h
 * @brief Compatibility stuff for the different UTMP systems.
 *
 * @copyright 2015 The FreeRADIUS server project
 */
RCSIDH(sysutmp_h, "$Id: 1b236ef092acb77dff503ae33a8dbc594abd382e $")
 
#include <freeradius-devel/autoconf.h>
 
/*
 *  If we have BOTH utmp.h and utmpx.h, then
 *  we prefer to use utmp.h, but only on systems other than Solaris.
 */
#if !defined(__sun) && !defined(sgi) && !defined(hpux)
#  ifdef HAVE_UTMP_H
#    undef HAVE_UTMPX_H
#  endif
#endif
 
#if defined(HAVE_UTMP_H) || defined(HAVE_UTMPX_H)
 
/* UTMP stuff. Uses utmpx on svr4 */
#ifdef HAVE_UTMPX_H
#  include <utmpx.h>
#  include <sys/fcntl.h>
#  define USE_UTMPX     1
#  define UT_NAMESIZE   32
#  define UT_LINESIZE   32
#  define UT_HOSTSIZE   257
#if defined(hpux) || defined(__FreeBSD__)
#  define ut_name ut_user
#endif
#if defined(__FreeBSD__)
#  define utmp utmpx
#endif
#else
#  include <utmp.h>
#endif
 
#ifdef __cplusplus
extern "C" {
#endif
 
#ifdef __osf__
#  define UT_NAMESIZE   32
#  define UT_LINESIZE   32
#  define UT_HOSTSIZE   64
#endif
 
#if (defined(__FreeBSD__) && !defined(HAVE_UTMPX_H)) || defined(__NetBSD__) || defined(bsdi) || defined(__OpenBSD__) || defined(__APPLE__)
#  ifndef UTMP_FILE
#    define UTMP_FILE "/var/run/utmp"
#  endif
#  define ut_user ut_name
#endif
 
/*
 *      Generate definitions for systems which are too broken to
 *      do it themselves.
 *
 *      Hmm... this means that we can probably get rid of a lot of
 *      the static defines above, as the following lines will generate
 *      the proper defines for any system.
 */
#ifndef UT_LINESIZE
#define UT_LINESIZE sizeof(((struct utmp *) NULL)->ut_line)
#endif
 
#ifndef UT_NAMESIZE
#define UT_NAMESIZE sizeof(((struct utmp *) NULL)->ut_user)
#endif
 
#ifndef UT_HOSTSIZE
#define UT_HOSTSIZE sizeof(((struct utmp *) NULL)->ut_host)
#endif
 
#else /* HAVE_UTMP_H */
 
/*
 *      No <utmp.h> file - define stuff ourselves (minimally).
 */
#define UT_LINESIZE     16
#define UT_NAMESIZE     16
#define UT_HOSTSIZE     16
 
#define USER_PROCESS    7
#define DEAD_PROCESS    8
 
#define UTMP_FILE       "/var/run/utmp"
#define ut_name         ut_user
 
struct utmp {
        short   ut_type;
        int     ut_pid;
        char    ut_line[UT_LINESIZE];
        char    ut_id[4];
        long    ut_time;
        char    ut_user[UT_NAMESIZE];
        char    ut_host[UT_HOSTSIZE];
        long    ut_addr;
};
 
#endif /* HAVE_UTMP_H */
 
#ifdef __cplusplus
}
#endif