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-rw-r--r--src/libstrongswan/asn1/asn1.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/libstrongswan/asn1/asn1.h b/src/libstrongswan/asn1/asn1.h
index a1d625380..7a48292af 100644
--- a/src/libstrongswan/asn1/asn1.h
+++ b/src/libstrongswan/asn1/asn1.h
@@ -191,6 +191,13 @@ void asn1_debug_simple_object(chunk_t object, asn1_t type, bool private);
/**
* Converts an ASN.1 UTCTIME or GENERALIZEDTIME string to time_t
*
+ * On systems where sizeof(time_t) == 4 there will be an overflow
+ * for dates
+ * > Tue, 19 Jan 2038 03:14:07 UTC (0x7fffffff)
+ * and
+ * < Fri, 13 Dec 1901 20:45:52 UTC (0x80000000)
+ * in both cases TIME_32_BIT_SIGNED_MAX is returned.
+ *
* @param utctime body of an ASN.1 coded time object
* @param type ASN1_UTCTIME or ASN1_GENERALIZEDTIME
* @return time_t in UTC