ubase/uptime.c

74 lines
1.4 KiB
C
Raw Normal View History

2013-08-16 10:55:55 +00:00
/* See LICENSE file for copyright and license details. */
#include <sys/sysinfo.h>
2014-06-30 18:03:41 +00:00
2013-08-16 10:55:55 +00:00
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <utmpx.h>
2014-06-30 18:03:41 +00:00
2014-07-01 14:48:35 +00:00
#include "config.h"
2013-08-16 10:55:55 +00:00
#include "util.h"
static void
usage(void)
{
eprintf("usage: %s\n", argv0);
}
int
main(int argc, char *argv[])
{
struct utmpx utx;
2013-08-16 10:55:55 +00:00
FILE *ufp;
struct sysinfo info;
time_t tmptime;
struct tm *now;
unsigned int days, hours, minutes;
int nusers = 0;
size_t n;
2013-08-16 10:55:55 +00:00
ARGBEGIN {
default:
usage();
} ARGEND;
2013-08-16 14:51:37 +00:00
if (sysinfo(&info) < 0)
eprintf("sysinfo:");
2013-08-16 10:55:55 +00:00
time(&tmptime);
now = localtime(&tmptime);
printf(" %02d:%02d:%02d up ", now->tm_hour, now->tm_min, now->tm_sec);
info.uptime /= 60;
minutes = info.uptime % 60;
info.uptime /= 60;
hours = info.uptime % 24;
days = info.uptime / 24;
if (days)
printf("%d day%s, ", days, days != 1 ? "s" : "");
2013-08-16 10:55:55 +00:00
if (hours)
printf("%2d:%02d, ", hours, minutes);
else
printf("%d min, ", minutes);
2014-07-01 14:48:35 +00:00
if ((ufp = fopen(UTMP_PATH, "r"))) {
while ((n = fread(&utx, sizeof(utx), 1, ufp)) > 0) {
if (!utx.ut_user[0])
2013-08-16 10:55:55 +00:00
continue;
if (utx.ut_type != USER_PROCESS)
continue;
2013-08-16 10:55:55 +00:00
nusers++;
}
if (ferror(ufp))
eprintf("%s: read error:", UTMP_PATH);
2013-08-16 10:55:55 +00:00
fclose(ufp);
printf(" %d user%s, ", nusers, nusers != 1 ? "s" : "");
2013-08-16 10:55:55 +00:00
}
printf(" load average: %.02f, %.02f, %.02f\n",
info.loads[0] / 65536.0f,
info.loads[1] / 65536.0f,
info.loads[2] / 65536.0f);
2014-10-02 22:45:25 +00:00
return 0;
2013-08-16 10:55:55 +00:00
}