[Opendnssec-user] Opendnssec signer Y2K bug?

[Miek Gieben]

[ Quoting <rickard at opendnssec.org> at 13:10 on Dec 23 in "Re: [Opendnssec-user..." ]
> The issue was that we got the wrong year, so I am guessing that the
> problem may be in the function
> ldns_year_and_yday_from_days_since_epoch()

I've extracted that code in a separate program:

% date -d "now + 9 days"
Sun Jan  1 13:33:26 CET 2012

% date +%s -d "now + 9 days"
1325421327

Using this number in my program (t.c):

 45     void main() {
 46             struct tm time;
 47             //int64_t seconds = 1324643172; // now
 48             //int64_t seconds = 1330000272;   // now + 2 months
 49     //        int64_t seconds = 1325507505;   // now + 10 days
 50             int64_t seconds = 1325421327;   // now + 9 days
 51             int64_t days = LDNS_DIV(seconds, 60);
 52             days = LDNS_DIV(days, 60); 
 53             days = LDNS_DIV(days, 24); 
 54      
 55             ldns_year_and_yday_from_days_since_epoch(days, &time);
 56      
 57             printf("Year %d, Yday %d", time.tm_year, time.tm_yday);
 58     }

% ./t
Year 2012, Yday 365

Using today +10 days:

% date +%s -d "now + 10 days"
1325507811

% ./t
Year 2012, Yday 1%  

There is a bug here. I'm digging further.

 grtz,

-- 
    Miek
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 198 bytes
Desc: Digital signature
URL: <http://lists.opendnssec.org/pipermail/opendnssec-user/attachments/20111223/f2d2d989/attachment.bin>