From owner-freebsd-hackers  Thu Sep 20  4:20: 8 2001
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To: FreeBSD-gnats-submit@freebsd.org
Subject: uptime and w utilities lie about real uptime
From: Vladimir B.Grebenschikov <vova@express.ru>
Reply-To: Vladimir B.Grebenschikov <vova@express.ru>
Cc: freebsd-hackers@freebsd.org
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>Submitter-Id:	current-users
>Originator:	Vladimir B. Grebenschikov
>Organization:	TSB "Russian Express"
>Confidential:	no 
>Synopsis:	uptime and w utilities lie about real uptime
>Severity:	non-critical
>Priority:	low
>Category:	bin
>Class:		sw-bug
>Release:	FreeBSD 5.0-CURRENT i386
>Environment:
System: FreeBSD vbook.express.ru 5.0-CURRENT FreeBSD 5.0-CURRENT #0: Wed Sep 19 20:26:25 MSD 2001 root@vbook.express.ru:/usr/src.local/sys/i386/compile/VBOOK i386

>Description:

	Just after very fast boot uptimealways shows more than 30 sec.

	looking to src/usr/bin/w/w.c:

        if (sysctl(mib, 2, &boottime, &size, NULL, 0) != -1 &&
            boottime.tv_sec != 0) {
                uptime = now - boottime.tv_sec;
                uptime += 30;
====================== ^^^^^
                days = uptime / 86400;
                uptime %= 86400;
                hrs = uptime / 3600;
                uptime %= 3600;
                mins = uptime / 60;
                secs = uptime % 60;
                (void)printf(" up");


why utility increases uptime on 30 seconds ??
Is any real reasons for it ?

>How-To-Repeat:
	Boot and run uptime
>Fix:

--- src/usr.bin/w.c.orig    Thu Sep 20 15:20:01 2001
+++ src/usr.bin/w.c Thu Sep 20 15:20:11 2001
@@ -450,7 +450,6 @@
        if (sysctl(mib, 2, &boottime, &size, NULL, 0) != -1 &&
            boottime.tv_sec != 0) {
                uptime = now - boottime.tv_sec;
-               uptime += 30;
                days = uptime / 86400;
                uptime %= 86400;
                hrs = uptime / 3600;

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