diff options
Diffstat (limited to 'login/utmp.h')
-rw-r--r-- | login/utmp.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/login/utmp.h b/login/utmp.h new file mode 100644 index 0000000000..2ba3da8e0b --- /dev/null +++ b/login/utmp.h @@ -0,0 +1,96 @@ +/* Copyright (C) 1993, 1996 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +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. */ + + +#ifndef _UTMP_H_ + +#define _UTMP_H_ 1 +#include <features.h> + +#include <sys/types.h> + +/* Get system dependent values and data structures. */ +#include <utmpbits.h> + + +/* Write the given entry into utmp and wtmp. */ +extern void login __P ((__const struct utmp *)); + +/* Write the utmp entry to say the user on UT_LINE has logged out. */ +extern int logout __P ((__const char *ut_line)); + +/* Append to wtmp an entry for the current time and the given info. */ +extern void logwtmp __P ((__const char *ut_line, __const char *ut_name, + __const char *ut_host)); + +/* Change name of the examine utmp file. */ +extern int utmpname __P ((__const char *__file)); + +/* Read next entry from a utmp-like file. */ +extern struct utmp *getutent __P ((void)); + +/* Rest the input stream to the beginning of the file. */ +extern void setutent __P ((void)); + +/* Close the current open file. */ +extern void endutent __P ((void)); + +/* Search forward from the current point in the utmp file until the + next entry with a ut_type matching ID->ut_type. */ +extern struct utmp *getutid __P ((__const struct utmp *__id)); + +/* Search forward from the current point in the utmp file until the + next entry with a ut_line matching LINE->ut_line. */ +extern struct utmp *getutline __P ((__const struct utmp *__line)); + +/* Write out entry pointed to by UTMP_PTR into the utmp file. */ +extern struct utmp *pututline __P ((__const struct utmp *__utmp_ptr)); + + +#if defined(_REENTRANT) || defined(_THREAD_SAFE) +/* Define the data structure needed for the reentrent version. */ +struct utmp_data +{ + int ut_fd; + off_t loc_utmp; + struct utmp ubuf; +}; + + +/* Reentrent versions of the file for handling utmp files. */ +extern int getutent_r __P ((struct utmp **__utmp, + struct utmp_data *__utmp_data)); + +extern void setutent_r __P ((struct utmp_data *__utmp_data)); + +extern void endutent_r __P ((struct utmp_data *__utmp_data)); + +extern int getutid_r __P ((__const struct utmp *__id, struct utmp **__utmp, + struct utmp_data *__utmp_data)); + +extern int getutline_r __P ((__const struct utmp *__line, struct utmp **__utmp, + struct utmp_data *__utmp_data)); + +extern int pututline_r __P ((__const struct utmp *__utmp_ptr, + struct utmp_data *__utmp_data)); + +#endif /* _REENTRENT || _THREAD_SAFE */ + +__END_DECLS + +#endif /* utmp.h */ |