#include <stdlib.h>
#include <string.h>
#include <time.h>
+#include <limits.h>
#include "polarssl/havege.h"
#include "polarssl/bignum.h"
#include "polarssl/x509.h"
from = (from < 1000000000) ? 1000000000 : from;
strftime(fstr, sizeof(fstr), "%F %H:%M:%S", gmtime(&from));
to = from + 60 * 60 * 24 * days;
+ if (to < from)
+ to = INT_MAX;
strftime(tstr, sizeof(tstr), "%F %H:%M:%S", gmtime(&to));
x509_raw cert;