From owner-freebsd-questions  Wed Sep 29  9:14: 2 1999
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Date: Wed, 29 Sep 1999 12:11:44 -0400 (EDT)
From: James Snow <sno@teardrop.org>
To: Steve Price <sprice@hiwaay.net>
Cc: freebsd-questions@FreeBSD.ORG
Subject: Re: Weird segfault
In-Reply-To: <Pine.OSF.4.10.9909282027170.23202-100000@fly.HiWAAY.net>
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On Tue, 28 Sep 1999, Steve Price wrote:

> On Tue, 28 Sep 1999, James Snow wrote:
> 
> [snip]
> # int loadavg() {
> # 	double avg[2];
>                    ^
> Shouldn't this be 3?

Yes, I apologize. This was something that I changed when the problem was
first presented to me, but I had deleted my version of the code, and
copied the old one into my email.

The current code and behaviour follows:

silver:~> cat ut.c
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <sys/types.h>
#include <sys/sysctl.h>

int uptime()
{
        int mib[1];
        int utsec, utday, uthour, utmin;
        size_t len;
        
        mib[0] = CTL_KERN;
        mib[1] = KERN_BOOTTIME;
        len = sizeof(utsec);
        sysctl(mib, 2, &utsec, &len, NULL, 0);
        utsec = time(NULL) - utsec;

        utday = utsec / 86400;
        utsec %= 86400;
        
        uthour = utsec / 3600;
        utsec %= 3600;
        
        utmin = utsec / 60;
        utsec %= 60;
        
        return printf("%dd %dh:%dm:%ds\n", utday, uthour, utmin, utsec);
}

int loadavg() {
        double avg[3];
        if ((getloadavg(avg, 3)) == -1)
                return printf("Not available\n");

        return printf("%.2f %.2f %.2f\n", avg[0], avg[1], avg[2]);
}

int main() {
        printf("a:");
        uptime();
        printf("b:");
        loadavg();
        printf("c:\n");
        return 0;
}
silver:~> gcc ut.c
silver:~> ./a.out 
a:6d 19h:29m:11s
b:0.11 0.06 0.01
c:
Segmentation fault(core dumped)
silver:~> 


Thanks again.
-sno

          o-( sno at teardrop dot org - I am Geek. Hear me ^G )-o
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          o-( We live in the short term and hope for the best )-o



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