libutil/logwtmp.c

   1 /*
   2  * wtmp support rubbish (i.e. complete crap)
   3  * Copyright (C) 2000-2006 by Erik Andersen <andersen@uclibc.org>
   4  * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
   5  */
   6
   7 #include <string.h>
   8 #include <sys/time.h>
   9 #include <time.h>
  10 #include <unistd.h>
  11 #include <fcntl.h>
  12 #include <sys/file.h>
  13 #include "internal/utmp.h"
  14
  15 void logwtmp(const char *line, const char *name, const char *host)
  16 {
  17     struct UT lutmp;
  18     memset(&lutmp, 0, sizeof(lutmp));
  19
  20     lutmp.ut_type = (name && *name) ? USER_PROCESS : DEAD_PROCESS;
  21     lutmp.ut_pid = getpid();
  22     strncpy(lutmp.ut_line, line, sizeof(lutmp.ut_line)-1);
  23     strncpy(lutmp.ut_name, name, sizeof(lutmp.ut_name)-1);
  24     strncpy(lutmp.ut_host, host, sizeof(lutmp.ut_host)-1);
  25 #if !defined __WORDSIZE_TIME64_COMPAT32
  26     gettimeofday(&lutmp.ut_tv, NULL);
  27 #else
  28     {
  29       struct timeval tv;
  30       gettimeofday(&tv, NULL);
  31       lutmp.ut_tv.tv_sec = tv.tv_sec;
  32       lutmp.ut_tv.tv_usec = tv.tv_usec;
  33     }
  34 #endif
  35
  36     updwtmp(_PATH_WTMP, &lutmp);
  37 }