commit 74146c54a7b1ae44c892c407139d1f6916cfca10
parent 30e0acef7aa3a268a48265a10e19a127d1d335e5
Author: sin <sin@2f30.org>
Date: Fri, 16 Aug 2013 11:55:55 +0100
Add uptime(1)
Diffstat:
| M | Makefile | | | 3 | ++- |
| M | TODO | | | 1 | - |
| A | uptime.c | | | 65 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
3 files changed, 67 insertions(+), 2 deletions(-)
diff --git a/Makefile b/Makefile
@@ -36,7 +36,8 @@ SRC = \
swapon.c \
truncate.c \
umount.c \
- unshare.c
+ unshare.c \
+ uptime.c
OBJ = $(SRC:.c=.o) $(LIB)
BIN = $(SRC:.c=)
diff --git a/TODO b/TODO
@@ -6,7 +6,6 @@ Tools
* swaplabel(8)
* last(1)
* losetup(8)
- * uptime(1)
Other
=====
diff --git a/uptime.c b/uptime.c
@@ -0,0 +1,65 @@
+/* See LICENSE file for copyright and license details. */
+#include <sys/sysinfo.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <utmp.h>
+#include "util.h"
+
+static void
+usage(void)
+{
+ eprintf("usage: %s\n", argv0);
+}
+
+int
+main(int argc, char *argv[])
+{
+ struct utmp usr;
+ FILE *ufp;
+ struct sysinfo info;
+ time_t tmptime;
+ struct tm *now;
+ unsigned int days, hours, minutes;
+ int nusers = 0;
+
+ ARGBEGIN {
+ default:
+ usage();
+ } ARGEND;
+
+ sysinfo(&info);
+ time(&tmptime);
+ now = localtime(&tmptime);
+ printf(" %02d:%02d:%02d up ", now->tm_hour, now->tm_min, now->tm_sec);
+ info.uptime /= 60;
+ minutes = info.uptime % 60;
+ info.uptime /= 60;
+ hours = info.uptime % 24;
+ days = info.uptime / 24;
+ if (days)
+ printf("%d day%s, ", days, days > 1 ? "s" : "");
+ if (hours)
+ printf("%2d:%02d, ", hours, minutes);
+ else
+ printf("%d min, ", minutes);
+
+ if ((ufp = fopen(_PATH_UTMP, "r"))) {
+ while(fread(&usr, sizeof(usr), 1, ufp) == 1) {
+ if (!*usr.ut_name || !*usr.ut_line ||
+ usr.ut_line[0] == '~')
+ continue;
+ nusers++;
+ }
+ fclose(ufp);
+ printf(" %d user%s, ", nusers, nusers > 1 ? "s" : "");
+ }
+
+ printf(" load average: %.02f, %.02f, %.02f\n",
+ info.loads[0] / 65536.0f,
+ info.loads[1] / 65536.0f,
+ info.loads[2] / 65536.0f);
+
+ return 0;
+}
