bin/40425: mktime(3) returns wrong value

[taca%back-street.net@localhost]

>Number:         40425
>Category:       bin
>Synopsis:       mktime(3) returns wrong value
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Jan 18 03:55:00 +0000 2009
>Originator:     Takahiro Kambe
>Release:        NetBSD 5.99.7
>Organization:
Takahiro Kambe
>Environment:
        
        
System: NetBSD reef.back-street.net 5.99.7 NetBSD 5.99.7 (CF-R) #180: Sat Jan 
17 23:51:44 JST 2009 
taca%reef.back-street.net@localhost:/var/obj/sys/arch/i386/compile/CF-R i386
Architecture: i386
Machine: i386
>Description:
        mktime(3) returns strange value after christos-time_t was merged.
>How-To-Repeat:
        Here is a reproducable code fragment and tested on i386.

#include <stdio.h>
#include <time.h>

main()
{
        time_t t;
        struct tm *tm;
        char buf[BUFSIZ];

        time(&t);
        printf("%lld\n", t);
        tm = localtime(&t);
        t = mktime(tm);
        printf("%lld\n", t);
}

% uname -r
5.99.6
% ./a.out 
1232245817
1232245817

% uname -r
5.99.7
% ./a.out 
1232245863
2168577230055273063

>Fix:

>Unformatted: