1/* uptime.c - Tell how long the system has been running.
2 *
3 * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com>
4 * Copyright 2012 Luis Felipe Strano Moraes <lfelipe@profusion.mobi>
5 * Copyright 2013 Jeroen van Rijn <jvrnix@gmail.com>
6
7
8USE_UPTIME(NEWTOY(uptime, NULL, TOYFLAG_USR|TOYFLAG_BIN))
9
10config UPTIME
11  bool "uptime"
12  default y
13  depends on TOYBOX_UTMPX
14  help
15    usage: uptime
16
17    Tell how long the system has been running and the system load
18    averages for the past 1, 5 and 15 minutes.
19*/
20
21#include "toys.h"
22
23void uptime_main(void)
24{
25  struct sysinfo info;
26  time_t tmptime;
27  struct tm * now;
28  unsigned int days, hours, minutes;
29  struct utmpx *entry;
30  int users = 0;
31
32  // Obtain the data we need.
33  sysinfo(&info);
34  time(&tmptime);
35  now = localtime(&tmptime);
36
37  // Obtain info about logged on users
38  setutxent();
39  while ((entry = getutxent())) if (entry->ut_type == USER_PROCESS) users++;
40  endutxent();
41
42  // Time
43  xprintf(" %02d:%02d:%02d up ", now->tm_hour, now->tm_min, now->tm_sec);
44  // Uptime
45  info.uptime /= 60;
46  minutes = info.uptime%60;
47  info.uptime /= 60;
48  hours = info.uptime%24;
49  days = info.uptime/24;
50  if (days) xprintf("%d day%s, ", days, (days!=1)?"s":"");
51  if (hours) xprintf("%2d:%02d, ", hours, minutes);
52  else printf("%d min, ", minutes);
53  printf(" %d user%s, ", users, (users!=1) ? "s" : "");
54  printf(" load average: %.02f, %.02f, %.02f\n", info.loads[0]/65536.0,
55    info.loads[1]/65536.0, info.loads[2]/65536.0);
56}
57