compiled-tools/utmp.c

   1
   2 #include <utmp.h>
   3 #include <stdio.h>
   4 #include <err.h>
   5 #include <errno.h>
   6 #include <string.h>
   7 #include <paths.h>
   8
   9 int main(int argc, char **argv)
  10 {
  11         struct utmp *utmpptr;
  12
  13         #ifdef DEBUG
  14         printf("EMPTY=%u RUN_LVL=%u BOOT_TIME=%u NEW_TIME=%u OLD_TIME=%u INIT_PROCESS=%u LOGIN_PROCESS=%u USER_PROCESS=%u DEAD_PROCESS=%u ACCOUNTING=%u\n", EMPTY, RUN_LVL, BOOT_TIME, NEW_TIME, OLD_TIME, INIT_PROCESS, LOGIN_PROCESS, USER_PROCESS, DEAD_PROCESS, ACCOUNTING);
  15         #endif
  16
  17         if(argc > 1)
  18         {
  19                 if(strcmp(argv[1], "--help")==0)
  20                 {
  21                         printf("Usage: utmp [<FILE>]\nDisplay bare UTMP database line-by-line.\nDefault FILE is "_PATH_UTMP".\n");
  22                         return(0);
  23                 }
  24
  25                 if(utmpname(argv[1]) != 0)
  26                 {
  27                         err(errno || -1, "%s: could not set utmp name", argv[1]);
  28                 }
  29         }
  30
  31         while((utmpptr = getutent()))
  32         {
  33                 #ifdef DEBUG
  34                 printf("utmp type=%u pid=%u line=%s id=%s user=%s host=%s\n",utmpptr->ut_type,utmpptr->ut_pid,utmpptr->ut_line,utmpptr->ut_id,utmpptr->ut_user,utmpptr->ut_host);
  35                 #endif
  36                 if(utmpptr->ut_type == USER_PROCESS)
  37                 {
  38                         printf("%u\t%s\t%s\t%s\n", utmpptr->ut_pid, utmpptr->ut_line, utmpptr->ut_user, utmpptr->ut_host);
  39                 }
  40         }
  41         endutent();
  42
  43         return(0);
  44 }