| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /* Copyright (C) 1996, 1997, 2002 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, write to the Free |
| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 18 | 02111-1307 USA. */ |
| 19 | |
| 20 | #include <errno.h> |
| 21 | #include <string.h> |
| 22 | #include <utmp.h> |
| 23 | #include <sys/time.h> |
| 24 | |
| 25 | int |
| 26 | logout (const char *line) |
| 27 | { |
| 28 | struct utmp tmp; |
| 29 | struct utmp *ut; |
| 30 | int result = 0; |
| 31 | |
| 32 | /* if (utmpname (_PATH_UTMP) == -1) return 0; - why? |
| 33 | * this makes it impossible for caller to use other file! |
| 34 | * Does any standard or historical precedent says this must be done? */ |
| 35 | |
| 36 | /* Open UTMP file. */ |
| 37 | setutent (); |
| 38 | |
| 39 | /* Fill in search information. */ |
| 40 | #if _HAVE_UT_TYPE - 0 |
| 41 | tmp.ut_type = USER_PROCESS; |
| 42 | #endif |
| 43 | strncpy (tmp.ut_line, line, sizeof tmp.ut_line); |
| 44 | |
| 45 | /* Read the record. */ |
| 46 | if ((ut = getutline(&tmp)) != NULL) |
| 47 | { |
| 48 | /* Clear information about who & from where. */ |
| 49 | memset (ut->ut_name, 0, sizeof ut->ut_name); |
| 50 | #if _HAVE_UT_HOST - 0 |
| 51 | memset (ut->ut_host, 0, sizeof ut->ut_host); |
| 52 | #endif |
| 53 | #if _HAVE_UT_TV - 0 |
| 54 | # if !defined __WORDSIZE_COMPAT32 || __WORDSIZE_COMPAT32 == 0 |
| 55 | gettimeofday (&ut->ut_tv, NULL); |
| 56 | # else |
| 57 | { |
| 58 | struct timeval tv; |
| 59 | gettimeofday (&tv, NULL); |
| 60 | ut->ut_tv.tv_sec = tv.tv_sec; |
| 61 | ut->ut_tv.tv_usec = tv.tv_usec; |
| 62 | } |
| 63 | # endif |
| 64 | #else |
| 65 | time (&ut->ut_time); |
| 66 | #endif |
| 67 | #if _HAVE_UT_TYPE - 0 |
| 68 | ut->ut_type = DEAD_PROCESS; |
| 69 | #endif |
| 70 | |
| 71 | if (pututline (ut) != NULL) |
| 72 | result = 1; |
| 73 | } |
| 74 | |
| 75 | /* Close UTMP file. */ |
| 76 | endutent (); |
| 77 | |
| 78 | return result; |
| 79 | } |