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git://git.suckless.org/ubase
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85a0e49c33
If your utmp files are generated with programs linked against glibc then musl-libc might not be able to parse the records correctly. This is because the fields `ut_session' and `ut_tv' must be the same size when compiled in x86 and x86_64. This is a requirement by glibc that musl does not fulfil for good reasons.
71 lines
1.4 KiB
C
71 lines
1.4 KiB
C
/* See LICENSE file for copyright and license details. */
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#include <sys/sysinfo.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <utmpx.h>
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#include "util.h"
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static void
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usage(void)
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{
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eprintf("usage: %s\n", argv0);
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}
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int
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main(int argc, char *argv[])
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{
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struct utmpx utx;
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FILE *ufp;
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struct sysinfo info;
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time_t tmptime;
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struct tm *now;
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unsigned int days, hours, minutes;
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int nusers = 0;
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size_t n;
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ARGBEGIN {
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default:
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usage();
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} ARGEND;
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if (sysinfo(&info) < 0)
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eprintf("sysinfo:");
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time(&tmptime);
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now = localtime(&tmptime);
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printf(" %02d:%02d:%02d up ", now->tm_hour, now->tm_min, now->tm_sec);
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info.uptime /= 60;
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minutes = info.uptime % 60;
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info.uptime /= 60;
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hours = info.uptime % 24;
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days = info.uptime / 24;
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if (days)
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printf("%d day%s, ", days, days > 1 ? "s" : "");
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if (hours)
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printf("%2d:%02d, ", hours, minutes);
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else
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printf("%d min, ", minutes);
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if ((ufp = fopen("/var/run/utmp", "r"))) {
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while ((n = fread(&utx, sizeof(utx), 1, ufp)) > 0) {
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if (!utx.ut_user[0])
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continue;
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if (utx.ut_type != USER_PROCESS)
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continue;
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nusers++;
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}
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if (ferror(ufp))
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eprintf("/var/run/utmp: read error:");
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fclose(ufp);
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printf(" %d user%s, ", nusers, nusers > 1 ? "s" : "");
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}
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printf(" load average: %.02f, %.02f, %.02f\n",
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info.loads[0] / 65536.0f,
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info.loads[1] / 65536.0f,
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info.loads[2] / 65536.0f);
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return EXIT_SUCCESS;
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}
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