| /* Copyright (C) 1993-2018 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 Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef _UTMP_H |
| #define _UTMP_H 1 |
| |
| #include <features.h> |
| |
| #include <sys/types.h> |
| |
| |
| __BEGIN_DECLS |
| |
| /* Get system dependent values and data structures. */ |
| #include <bits/utmp.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 (int __fd) __THROW; |
| |
| |
| /* Write the given entry into utmp and wtmp. */ |
| extern void login (const struct utmp *__entry) __THROW; |
| |
| /* Write the utmp entry to say the user on UT_LINE has logged out. */ |
| extern int logout (const char *__ut_line) __THROW; |
| |
| /* Append to wtmp an entry for the current time and the given info. */ |
| extern void logwtmp (const char *__ut_line, const char *__ut_name, |
| const char *__ut_host) __THROW; |
| |
| /* Append entry UTMP to the wtmp-like file WTMP_FILE. */ |
| extern void updwtmp (const char *__wtmp_file, const struct utmp *__utmp) |
| __THROW; |
| |
| /* Change name of the utmp file to be examined. */ |
| extern int utmpname (const char *__file) __THROW; |
| |
| /* Read next entry from a utmp-like file. */ |
| extern struct utmp *getutent (void) __THROW; |
| |
| /* Reset the input stream to the beginning of the file. */ |
| extern void setutent (void) __THROW; |
| |
| /* Close the current open file. */ |
| extern void endutent (void) __THROW; |
| |
| /* 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 (const struct utmp *__id) __THROW; |
| |
| /* 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 (const struct utmp *__line) __THROW; |
| |
| /* Write out entry pointed to by UTMP_PTR into the utmp file. */ |
| extern struct utmp *pututline (const struct utmp *__utmp_ptr) __THROW; |
| |
| |
| #ifdef __USE_MISC |
| /* Reentrant versions of the file for handling utmp files. */ |
| extern int getutent_r (struct utmp *__buffer, struct utmp **__result) __THROW; |
| |
| extern int getutid_r (const struct utmp *__id, struct utmp *__buffer, |
| struct utmp **__result) __THROW; |
| |
| extern int getutline_r (const struct utmp *__line, |
| struct utmp *__buffer, struct utmp **__result) __THROW; |
| |
| #endif /* Use misc. */ |
| |
| __END_DECLS |
| |
| #endif /* utmp.h */ |