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97 lines
3.1 KiB
C
97 lines
3.1 KiB
C
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/* Copyright (C) 1993, 1996 Free Software Foundation, Inc.
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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 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
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not, 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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#ifndef _UTMP_H_
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#define _UTMP_H_ 1
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#include <features.h>
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#include <sys/types.h>
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/* Get system dependent values and data structures. */
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#include <utmpbits.h>
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/* Write the given entry into utmp and wtmp. */
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extern void login __P ((__const struct utmp *));
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/* Write the utmp entry to say the user on UT_LINE has logged out. */
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extern int logout __P ((__const char *ut_line));
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/* Append to wtmp an entry for the current time and the given info. */
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extern void logwtmp __P ((__const char *ut_line, __const char *ut_name,
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__const char *ut_host));
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/* Change name of the examine utmp file. */
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extern int utmpname __P ((__const char *__file));
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/* Read next entry from a utmp-like file. */
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extern struct utmp *getutent __P ((void));
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/* Rest the input stream to the beginning of the file. */
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extern void setutent __P ((void));
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/* Close the current open file. */
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extern void endutent __P ((void));
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/* Search forward from the current point in the utmp file until the
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next entry with a ut_type matching ID->ut_type. */
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extern struct utmp *getutid __P ((__const struct utmp *__id));
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/* Search forward from the current point in the utmp file until the
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next entry with a ut_line matching LINE->ut_line. */
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extern struct utmp *getutline __P ((__const struct utmp *__line));
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/* Write out entry pointed to by UTMP_PTR into the utmp file. */
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extern struct utmp *pututline __P ((__const struct utmp *__utmp_ptr));
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#if defined(_REENTRANT) || defined(_THREAD_SAFE)
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/* Define the data structure needed for the reentrent version. */
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struct utmp_data
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{
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int ut_fd;
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off_t loc_utmp;
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struct utmp ubuf;
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};
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/* Reentrent versions of the file for handling utmp files. */
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extern int getutent_r __P ((struct utmp **__utmp,
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struct utmp_data *__utmp_data));
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extern void setutent_r __P ((struct utmp_data *__utmp_data));
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extern void endutent_r __P ((struct utmp_data *__utmp_data));
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extern int getutid_r __P ((__const struct utmp *__id, struct utmp **__utmp,
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struct utmp_data *__utmp_data));
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extern int getutline_r __P ((__const struct utmp *__line, struct utmp **__utmp,
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struct utmp_data *__utmp_data));
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extern int pututline_r __P ((__const struct utmp *__utmp_ptr,
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struct utmp_data *__utmp_data));
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#endif /* _REENTRENT || _THREAD_SAFE */
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__END_DECLS
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#endif /* utmp.h */
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