faa52bdcc0
Make use of strerror(errno) and format all errors equally: function ['parameters']: error message
49 lines
872 B
C
49 lines
872 B
C
/* See LICENSE file for copyright and license details. */
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#if defined(__linux__)
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#include <sys/sysinfo.h>
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#elif defined(__OpenBSD__)
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#include <sys/sysctl.h>
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#include <sys/time.h>
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#endif
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#include "../util.h"
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const char *
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uptime(void)
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{
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int h;
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int m;
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int uptime = 0;
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#if defined(__linux__)
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struct sysinfo info;
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sysinfo(&info);
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uptime = info.uptime;
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#elif defined(__OpenBSD__)
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int mib[2];
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size_t size;
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time_t now;
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struct timeval boottime;
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time(&now);
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mib[0] = CTL_KERN;
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mib[1] = KERN_BOOTTIME;
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size = sizeof(boottime);
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if (sysctl(mib, 2, &boottime, &size, NULL, 0) != -1)
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uptime = now - boottime.tv_sec;
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else {
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fprintf(stderr, "sysctl 'KERN_BOOTTIME': %s\n", strerror(errno));
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return NULL;
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}
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#endif
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h = uptime / 3600;
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m = (uptime - h * 3600) / 60;
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return bprintf("%dh %dm", h, m);
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}
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