| 1 | /* Copyright (C) 1996-2022 Free Software Foundation, Inc. |
|---|
| 2 | This file is part of the GNU C Library. |
|---|
| 3 | |
|---|
| 4 | The GNU C Library is free software; you can redistribute it and/or |
|---|
| 5 | modify it under the terms of the GNU Lesser General Public |
|---|
| 6 | License as published by the Free Software Foundation; either |
|---|
| 7 | version 2.1 of the License, or (at your option) any later version. |
|---|
| 8 | |
|---|
| 9 | The GNU C Library is distributed in the hope that it will be useful, |
|---|
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
|---|
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|---|
| 12 | Lesser General Public License for more details. |
|---|
| 13 | |
|---|
| 14 | You should have received a copy of the GNU Lesser General Public |
|---|
| 15 | License along with the GNU C Library; if not, see |
|---|
| 16 | <https://www.gnu.org/licenses/>. */ |
|---|
| 17 | |
|---|
| 18 | #include <errno.h> |
|---|
| 19 | #include <string.h> |
|---|
| 20 | #include <utmp.h> |
|---|
| 21 | #include <time.h> |
|---|
| 22 | #include <sys/time.h> |
|---|
| 23 | #include <shlib-compat.h> |
|---|
| 24 | |
|---|
| 25 | int |
|---|
| 26 | __logout (const char *line) |
|---|
| 27 | { |
|---|
| 28 | struct utmp tmp, utbuf; |
|---|
| 29 | struct utmp *ut; |
|---|
| 30 | int result = 0; |
|---|
| 31 | |
|---|
| 32 | /* Tell that we want to use the UTMP file. */ |
|---|
| 33 | if (__utmpname (_PATH_UTMP) == -1) |
|---|
| 34 | return 0; |
|---|
| 35 | |
|---|
| 36 | /* Open UTMP file. */ |
|---|
| 37 | __setutent (); |
|---|
| 38 | |
|---|
| 39 | /* Fill in search information. */ |
|---|
| 40 | tmp.ut_type = USER_PROCESS; |
|---|
| 41 | strncpy (tmp.ut_line, line, sizeof tmp.ut_line); |
|---|
| 42 | |
|---|
| 43 | /* Read the record. */ |
|---|
| 44 | if (__getutline_r (&tmp, &utbuf, &ut) >= 0) |
|---|
| 45 | { |
|---|
| 46 | /* Clear information about who & from where. */ |
|---|
| 47 | memset (ut->ut_name, '\0', sizeof ut->ut_name); |
|---|
| 48 | memset (ut->ut_host, '\0', sizeof ut->ut_host); |
|---|
| 49 | |
|---|
| 50 | struct __timespec64 ts; |
|---|
| 51 | __clock_gettime64 (CLOCK_REALTIME, &ts); |
|---|
| 52 | TIMESPEC_TO_TIMEVAL (&ut->ut_tv, &ts); |
|---|
| 53 | ut->ut_type = DEAD_PROCESS; |
|---|
| 54 | |
|---|
| 55 | if (__pututline (ut) != NULL) |
|---|
| 56 | result = 1; |
|---|
| 57 | } |
|---|
| 58 | |
|---|
| 59 | /* Close UTMP file. */ |
|---|
| 60 | __endutent (); |
|---|
| 61 | |
|---|
| 62 | return result; |
|---|
| 63 | } |
|---|
| 64 | versioned_symbol (libc, __logout, logout, GLIBC_2_34); |
|---|
| 65 | libc_hidden_ver (__logout, logout) |
|---|
| 66 | |
|---|
| 67 | #if OTHER_SHLIB_COMPAT (libutil, GLIBC_2_0, GLIBC_2_34) |
|---|
| 68 | compat_symbol (libutil, __logout, logout, GLIBC_2_0); |
|---|
| 69 | #endif |
|---|
| 70 | |
|---|
