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212 lines
5.4 KiB
C
212 lines
5.4 KiB
C
/* Declarations for GNU's read utmp module.
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Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
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2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* Written by jla; revised by djm */
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#ifndef __READUTMP_H__
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# define __READUTMP_H__
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# include <sys/types.h>
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/* AIX 4.3.3 has both utmp.h and utmpx.h, but only struct utmp
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has the ut_exit member. */
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# if (HAVE_UTMPX_H && HAVE_UTMP_H && HAVE_STRUCT_UTMP_UT_EXIT \
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&& ! HAVE_STRUCT_UTMPX_UT_EXIT)
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# undef HAVE_UTMPX_H
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# endif
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# ifdef HAVE_UTMPX_H
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# ifdef HAVE_UTMP_H
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/* HPUX 10.20 needs utmp.h, for the definition of e.g., UTMP_FILE. */
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# include <utmp.h>
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# endif
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# include <utmpx.h>
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# define UTMP_STRUCT_NAME utmpx
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# define UT_TIME_MEMBER(UT_PTR) ((UT_PTR)->ut_tv.tv_sec)
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# define SET_UTMP_ENT setutxent
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# define GET_UTMP_ENT getutxent
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# define END_UTMP_ENT endutxent
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# ifdef HAVE_UTMPXNAME
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# define UTMP_NAME_FUNCTION utmpxname
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# endif
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# if HAVE_STRUCT_UTMPX_UT_EXIT_E_TERMINATION
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# define UT_EXIT_E_TERMINATION(U) ((U)->ut_exit.e_termination)
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# else
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# if HAVE_STRUCT_UTMPX_UT_EXIT_UT_TERMINATION
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# define UT_EXIT_E_TERMINATION(U) ((U)->ut_exit.ut_termination)
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# else
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# define UT_EXIT_E_TERMINATION(U) 0
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# endif
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# endif
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# if HAVE_STRUCT_UTMPX_UT_EXIT_E_EXIT
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# define UT_EXIT_E_EXIT(U) ((U)->ut_exit.e_exit)
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# else
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# if HAVE_STRUCT_UTMPX_UT_EXIT_UT_EXIT
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# define UT_EXIT_E_EXIT(U) ((U)->ut_exit.ut_exit)
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# else
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# define UT_EXIT_E_EXIT(U) 0
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# endif
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# endif
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# else
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# include <utmp.h>
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# if !HAVE_DECL_GETUTENT
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struct utmp *getutent();
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# endif
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# define UTMP_STRUCT_NAME utmp
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# define UT_TIME_MEMBER(UT_PTR) ((UT_PTR)->ut_time)
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# define SET_UTMP_ENT setutent
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# define GET_UTMP_ENT getutent
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# define END_UTMP_ENT endutent
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# ifdef HAVE_UTMPNAME
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# define UTMP_NAME_FUNCTION utmpname
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# endif
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# if HAVE_STRUCT_UTMP_UT_EXIT_E_TERMINATION
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# define UT_EXIT_E_TERMINATION(U) ((U)->ut_exit.e_termination)
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# else
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# if HAVE_STRUCT_UTMP_UT_EXIT_UT_TERMINATION
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# define UT_EXIT_E_TERMINATION(U) ((U)->ut_exit.ut_termination)
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# else
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# define UT_EXIT_E_TERMINATION(U) 0
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# endif
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# endif
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# if HAVE_STRUCT_UTMP_UT_EXIT_E_EXIT
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# define UT_EXIT_E_EXIT(U) ((U)->ut_exit.e_exit)
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# else
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# if HAVE_STRUCT_UTMP_UT_EXIT_UT_EXIT
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# define UT_EXIT_E_EXIT(U) ((U)->ut_exit.ut_exit)
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# else
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# define UT_EXIT_E_EXIT(U) 0
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# endif
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# endif
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# endif
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/* Accessor macro for the member named ut_user or ut_name. */
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# ifdef HAVE_UTMPX_H
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# if HAVE_STRUCT_UTMPX_UT_USER
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# define UT_USER(Utmp) ((Utmp)->ut_user)
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# endif
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# if HAVE_STRUCT_UTMPX_UT_NAME
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# undef UT_USER
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# define UT_USER(Utmp) ((Utmp)->ut_name)
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# endif
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# else
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# if HAVE_STRUCT_UTMP_UT_USER
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# define UT_USER(Utmp) ((Utmp)->ut_user)
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# endif
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# if HAVE_STRUCT_UTMP_UT_NAME
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# undef UT_USER
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# define UT_USER(Utmp) ((Utmp)->ut_name)
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# endif
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# endif
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# define HAVE_STRUCT_XTMP_UT_EXIT \
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(HAVE_STRUCT_UTMP_UT_EXIT \
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|| HAVE_STRUCT_UTMPX_UT_EXIT)
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# define HAVE_STRUCT_XTMP_UT_ID \
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(HAVE_STRUCT_UTMP_UT_ID \
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|| HAVE_STRUCT_UTMPX_UT_ID)
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# define HAVE_STRUCT_XTMP_UT_PID \
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(HAVE_STRUCT_UTMP_UT_PID \
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|| HAVE_STRUCT_UTMPX_UT_PID)
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typedef struct UTMP_STRUCT_NAME STRUCT_UTMP;
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enum { UT_USER_SIZE = sizeof UT_USER ((STRUCT_UTMP *) 0) };
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# if !defined (UTMP_FILE) && defined (_PATH_UTMP)
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# define UTMP_FILE _PATH_UTMP
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# endif
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# if !defined (WTMP_FILE) && defined (_PATH_WTMP)
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# define WTMP_FILE _PATH_WTMP
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# endif
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# ifdef UTMPX_FILE /* Solaris, SysVr4 */
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# undef UTMP_FILE
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# define UTMP_FILE UTMPX_FILE
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# endif
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# ifdef WTMPX_FILE /* Solaris, SysVr4 */
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# undef WTMP_FILE
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# define WTMP_FILE WTMPX_FILE
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# endif
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# ifndef UTMP_FILE
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# define UTMP_FILE "/etc/utmp"
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# endif
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# ifndef WTMP_FILE
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# define WTMP_FILE "/etc/wtmp"
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# endif
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# if HAVE_STRUCT_XTMP_UT_PID
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# define UT_PID(U) ((U)->ut_pid)
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# else
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# define UT_PID(U) 0
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# endif
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# if HAVE_STRUCT_UTMP_UT_TYPE || HAVE_STRUCT_UTMPX_UT_TYPE
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# define UT_TYPE_EQ(U, V) ((U)->ut_type == (V))
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# define UT_TYPE_NOT_DEFINED 0
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# else
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# define UT_TYPE_EQ(U, V) 0
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# define UT_TYPE_NOT_DEFINED 1
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# endif
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# ifdef BOOT_TIME
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# define UT_TYPE_BOOT_TIME(U) UT_TYPE_EQ (U, BOOT_TIME)
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# else
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# define UT_TYPE_BOOT_TIME(U) 0
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# endif
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# ifdef USER_PROCESS
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# define UT_TYPE_USER_PROCESS(U) UT_TYPE_EQ (U, USER_PROCESS)
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# else
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# define UT_TYPE_USER_PROCESS(U) 0
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# endif
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# define IS_USER_PROCESS(U) \
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(UT_USER (U)[0] \
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&& (UT_TYPE_USER_PROCESS (U) \
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|| (UT_TYPE_NOT_DEFINED && UT_TIME_MEMBER (U) != 0)))
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/* Options for read_utmp. */
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enum
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{
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READ_UTMP_CHECK_PIDS = 1
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};
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char *extract_trimmed_name (const STRUCT_UTMP *ut);
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int read_utmp (const char *filename, size_t *n_entries, STRUCT_UTMP **utmp_buf,
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int options);
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#endif /* __READUTMP_H__ */
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