40 lines
675 B
C
40 lines
675 B
C
/* See LICENSE file for copyright and license details. */
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/time.h>
|
|
|
|
#include "../../util.h"
|
|
|
|
const char *
|
|
uptime(void)
|
|
{
|
|
int h;
|
|
int m;
|
|
int uptime = 0;
|
|
|
|
int mib[2];
|
|
size_t size;
|
|
time_t now;
|
|
struct timeval boottime;
|
|
|
|
time(&now);
|
|
|
|
mib[0] = CTL_KERN;
|
|
mib[1] = KERN_BOOTTIME;
|
|
|
|
size = sizeof(boottime);
|
|
|
|
if (sysctl(mib, 2, &boottime, &size, NULL, 0) != -1)
|
|
uptime = now - boottime.tv_sec;
|
|
else {
|
|
fprintf(stderr, "sysctl 'KERN_BOOTTIME': %s\n", strerror(errno));
|
|
return NULL;
|
|
}
|
|
|
|
h = uptime / 3600;
|
|
m = (uptime - h * 3600) / 60;
|
|
|
|
return bprintf("%dh %dm", h, m);
|
|
}
|