freebsd stable - Feb 2005 - mktime() bug? result strtotime() fail in PHP

Hi,

I have problems with mktime() on FreeBSD 4.11-STABLE and daylight timezone.

My timezone is "America/Sao_Paulo", daylight begin on 2004-11-02 00:00
and terminate on 2005-02-20 00:00.

The problem is:
If run this code[1] on FreeBSD 4.11-STABLE, then return -1, if run on 
FreeBSD 5.3-STABLE, then return 1099364400 (correct) and if run on 
Linux, then return 1099364400 (correct).

In PHP, strtotime() call mktime(), because that return error.

Is a bug on mktime()?

-- code[1] --
#include <stdio.h>
#include <time.h>

int main()
{
         struct tm local;

         local.tm_sec = 0;
         local.tm_min = 0;
         local.tm_hour = 0;
         local.tm_mday = 2;
         local.tm_mon = 10;
         local.tm_year = 104;
         local.tm_isdst = -1;

         printf("%i\n", mktime(&local));
}
-- code[1] --

Regards

-- 
Marcus Grando
Grupos Internet S/A
marcus(at)corp.grupos.com.br

On Fri, 2005-Feb-11 21:16:00 -0200, Marcus Grando wrote:
>I have problems with mktime() on FreeBSD 4.11-STABLE and daylight timezone.
>
>My timezone is "America/Sao_Paulo", daylight begin on 2004-11-02
00:00
>and terminate on 2005-02-20 00:00.
>
>The problem is:
>If run this code[1] on FreeBSD 4.11-STABLE, then return -1, if run on 
>FreeBSD 5.3-STABLE, then return 1099364400 (correct) and if run on 
>Linux, then return 1099364400 (correct).
To be pedantic, FreeBSD 4.11 is correct and the others are wrong.  If
DST started at 2004-11-02 00:00 local time then you can't convert a local
time of 2004-11-02 00:00:00 because that time doesn't exist - your local
time goes 2004-11-01 23:59:59, 2004-11-02 01:00:00, 2004-11-02 01:00:01.

server% TZ=':/usr/share/zoneinfo/America/Sao_Paulo' perl -e 'print
scalar localtime 1099364400,"\n";'
Tue Nov  2 01:00:00 2004
server% TZ=':/usr/share/zoneinfo/America/Sao_Paulo' perl -e 'print
scalar localtime 1099364399,"\n";'
Mon Nov  1 23:59:59 2004
server% 

-- 
Peter Jeremy