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uptime: unification of the uptime function for linux/openbsd
Tobias Tschinkowitz tobias@he4d.net
Fri, 01 Jun 2018 20:10:34 +0200
commit

005b5417179de9eff56a9ac5f2ed818ae9ad5817

parent

8c8091f4f165974c44d75dd9ccc7cc4dcd1d1c96

1 files changed, 10 insertions(+), 50 deletions(-)

jump to
M components/uptime.ccomponents/uptime.c

@@ -1,59 +1,19 @@

/* See LICENSE file for copyright and license details. */ +#include <time.h> #include <stdio.h> #include "../util.h" -static const char * -format(int uptime) +const char * +uptime(void) { int h, m; - - h = uptime / 3600; - m = (uptime - h * 3600) / 60; - + struct timespec uptime; + if (clock_gettime(CLOCK_BOOTTIME, &uptime) < 0) { + warn("clock_gettime 'CLOCK_BOOTTIME'"); + return NULL; + } + h = uptime.tv_sec / 3600; + m = uptime.tv_sec % 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); - } -#elif defined(__OpenBSD__) - #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; - - time(&now); - - mib[0] = CTL_KERN; - mib[1] = KERN_BOOTTIME; - - size = sizeof(boottime); - - if (sysctl(mib, 2, &boottime, &size, NULL, 0) < 0) { - warn("sysctl 'KERN_BOOTTIME':"); - return NULL; - } - - uptime = now - boottime.tv_sec; - - return format(uptime); - } -#endif