Avoid integer overflow when parsing ASN.1 dates.

This only works properly if sizeof(time_t) > 4.

diff --git a/src/libstrongswan/asn1/asn1.c b/src/libstrongswan/asn1/asn1.c
index e74edde30cfd6ff40b607ad3d23de95bfcf46ab2..6ce818f0d08ebcc9c53d63ec741776eec58145bc 100644 (file)
--- a/src/libstrongswan/asn1/asn1.c
+++ b/src/libstrongswan/asn1/asn1.c
@@ -326,10 +326,10 @@ static const int tm_leap_1970 = 477;
  */
 time_t asn1_to_time(const chunk_t *utctime, asn1_t type)
 {
-       int tm_year, tm_mon, tm_day, tm_days, tm_hour, tm_min, tm_sec;
+       int tm_year, tm_mon, tm_day, tm_hour, tm_min, tm_sec;
        int tm_leap_4, tm_leap_100, tm_leap_400, tm_leap;
        int tz_hour, tz_min, tz_offset;
-       time_t tm_secs;
+       time_t tm_days, tm_secs;
        u_char *eot = NULL;
 
        if ((eot = memchr(utctime->ptr, 'Z', utctime->len)) != NULL)