34 lines
650 B
C
34 lines
650 B
C
/* See LICENSE file for copyright and license details. */
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#include <stdint.h>
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#include <stdio.h>
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#include <time.h>
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#include "../util.h"
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#if defined(CLOCK_BOOTTIME)
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#define UPTIME_FLAG CLOCK_BOOTTIME
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#elif defined(CLOCK_UPTIME)
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#define UPTIME_FLAG CLOCK_UPTIME
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#else
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#define UPTIME_FLAG CLOCK_MONOTONIC
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#endif
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const char *
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uptime(void)
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{
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char warn_buf[256];
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uintmax_t h, m;
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struct timespec uptime;
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if (clock_gettime(UPTIME_FLAG, &uptime) < 0) {
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snprintf(warn_buf, 256, "clock_gettime %d", UPTIME_FLAG);
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warn(warn_buf);
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return NULL;
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}
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h = uptime.tv_sec / 3600;
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m = uptime.tv_sec % 3600 / 60;
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return bprintf("%juh %jum", h, m);
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}
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