diff options
Diffstat (limited to 'REORG.TODO/login/programs/utmpdump.c')
-rw-r--r-- | REORG.TODO/login/programs/utmpdump.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/REORG.TODO/login/programs/utmpdump.c b/REORG.TODO/login/programs/utmpdump.c new file mode 100644 index 0000000000..35bf0f9c27 --- /dev/null +++ b/REORG.TODO/login/programs/utmpdump.c @@ -0,0 +1,99 @@ +/* utmpdump - dump utmp-like files. + Copyright (C) 1997-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1997. + + 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/>. */ + +#include <stdio.h> +#include <stdlib.h> +#include <time.h> +#include <unistd.h> +#include <utmp.h> + +static void +print_entry (struct utmp *up) +{ + /* Mixed 32-/64-bit systems may have timeval structs of different sixe + but need struct utmp to be the same size. So in 64-bit up->ut_tv may + not be a timeval but a struct of __int32_t's. This would cause a compile + time warning and a formating error when 32-bit int is passed where + a 64-bit long is expected. So copy up->up_tv to a temporary timeval. + This is 32-/64-bit agnostic and expands the timeval fields to the + expected size as needed. */ + struct timeval temp_tv; + temp_tv.tv_sec = up->ut_tv.tv_sec; + temp_tv.tv_usec = up->ut_tv.tv_usec; + + (printf) ( + /* The format string. */ +#if _HAVE_UT_TYPE + "[%d] " +#endif +#if _HAVE_UT_PID + "[%05d] " +#endif +#if _HAVE_UT_ID + "[%-4.4s] " +#endif + "[%-8.8s] [%-12.12s]" +#if _HAVE_UT_HOST + " [%-16.16s]" +#endif + " [%-15.15s]" +#if _HAVE_UT_TV + " [%ld]" +#endif + "\n" + /* The arguments. */ +#if _HAVE_UT_TYPE + , up->ut_type +#endif +#if _HAVE_UT_PID + , up->ut_pid +#endif +#if _HAVE_UT_ID + , up->ut_id +#endif + , up->ut_user, up->ut_line +#if _HAVE_UT_HOST + , up->ut_host +#endif +#if _HAVE_UT_TV + , 4 + ctime (&temp_tv.tv_sec) + , (long int) temp_tv.tv_usec +#else + , 4 + ctime (&up->ut_time) +#endif + ); +} + +int +main (int argc, char *argv[]) +{ + struct utmp *up; + + if (argc > 1) + utmpname (argv[1]); + + setutent (); + + while ((up = getutent ())) + print_entry (up); + + endutent (); + + return EXIT_SUCCESS; +} |