/* See LICENSE file for copyright and license details. */
+#include <stdint.h>
#include <stdio.h>
+#include <time.h>
#include "../util.h"
+#if defined(CLOCK_BOOTTIME)
+ #define UPTIME_FLAG CLOCK_BOOTTIME
+#elif defined(CLOCK_UPTIME)
+ #define UPTIME_FLAG CLOCK_UPTIME
+#else
+ #define UPTIME_FLAG CLOCK_MONOTONIC
+#endif
+
const char *
-format(int uptime)
+uptime(void)
{
- int h, m;
-
- h = uptime / 3600;
- m = (uptime - h * 3600) / 60;
-
- return bprintf("%dh %dm", h, m);
-}
-
-#if defined(__linux__)
- #include <sys/sysinfo.h>
-
- const char *
- uptime(void)
- {
- int uptime;
- struct sysinfo info;
-
- sysinfo(&info);
- uptime = info.uptime;
-
- return format(uptime);
+ char warn_buf[256];
+ uintmax_t h, m;
+ struct timespec uptime;
+
+ if (clock_gettime(UPTIME_FLAG, &uptime) < 0) {
+ snprintf(warn_buf, 256, "clock_gettime %d", UPTIME_FLAG);
+ warn(warn_buf);
+ return NULL;
}
-#elif defined(__OpenBSD__)
- #include <errno.h>
- #include <string.h>
- #include <sys/sysctl.h>
- #include <sys/time.h>
- const char *
- uptime(void)
- {
- int mib[2], uptime;
- size_t size;
- time_t now;
- struct timeval boottime;
+ h = uptime.tv_sec / 3600;
+ m = uptime.tv_sec % 3600 / 60;
- time(&now);
-
- mib[0] = CTL_KERN;
- mib[1] = KERN_BOOTTIME;
-
- size = sizeof(boottime);
-
- if (sysctl(mib, 2, &boottime, &size, NULL, 0) == -1)
- fprintf(stderr, "sysctl 'KERN_BOOTTIME': %s\n", strerror(errno));
- return NULL;
- }
-
- uptime = now - boottime.tv_sec;
-
- return format(uptime);
- }
-#endif
+ return bprintf("%juh %jum", h, m);
+}