/* 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> /* Compatibility names for the strings of the canonical file names. */ #define UTMP_FILE _PATH_UTMP #define UTMP_FILENAME _PATH_UTMP #define WTMP_FILE _PATH_WTMP #define WTMP_FILENAME _PATH_WTMP /* Make FD be the controlling terminal, stdin, stdout, and stderr; then close FD. Returns 0 on success, nonzero on error. */ extern int login_tty __P ((int __fd)); /* Write the given entry into utmp and wtmp. */ extern void login __P ((__const struct utmp *__entry)); /* 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 utmp file to be examined. */ 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)); extern void setutent __P ((void)); /* Close the current open file. */ extern void __endutent __P ((void)); 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)); #ifdef __USE_REENTRANT /* Reentrant versions of the file for handling utmp files. */ extern int __getutent_r __P ((struct utmp *__buffer, struct utmp **__result)); extern int getutent_r __P ((struct utmp *__buffer, struct utmp **__result)); extern int __getutid_r __P ((__const struct utmp *__id, struct utmp *__buffer, struct utmp **__result)); extern int getutid_r __P ((__const struct utmp *__id, struct utmp *__buffer, struct utmp **__result)); extern int __getutline_r __P ((__const struct utmp *__line, struct utmp *__buffer, struct utmp **__result)); extern int getutline_r __P ((__const struct utmp *__line, struct utmp *__buffer, struct utmp **__result)); #endif /* Use reentrant. */ __END_DECLS #endif /* utmp.h */