+static
+struct tm
+convert_time (ASN1_TIME const * time)
+{
+ struct tm t;
+ char const * s = (char const *) time->data;
+
+ if (time->type == V_ASN1_UTCTIME) {
+ sscanf(s, "%2d%2d%2d%2d%2d%2d", &t.tm_year, &t.tm_mon, &t.tm_mday, &t.tm_hour, &t.tm_min, &t.tm_sec);
+ if (t.tm_year < 70) {
+ t.tm_year += 100;
+ }
+ } else if (time->type == V_ASN1_GENERALIZEDTIME) {
+ sscanf(s, "%4d%2d%2d%2d%2d%2d", &t.tm_year, &t.tm_mon, &t.tm_mday, &t.tm_hour, &t.tm_min, &t.tm_sec);
+ t.tm_year -= 1900;
+ }
+
+ t.tm_mon--;
+
+ return t;
+}
+
+struct tm
+Certificate::not_before () const
+{
+ DCP_ASSERT (_certificate);
+#if OPENSSL_VERSION_NUMBER > 0x10100000L
+ return convert_time(X509_get0_notBefore(_certificate));
+#else
+ return convert_time(X509_get_notBefore(_certificate));
+#endif
+}
+
+struct tm
+Certificate::not_after () const
+{
+ DCP_ASSERT (_certificate);
+#if OPENSSL_VERSION_NUMBER > 0x10100000L
+ return convert_time(X509_get0_notAfter(_certificate));
+#else
+ return convert_time(X509_get_notAfter(_certificate));
+#endif
+}
+