don't use psec or pdays if NULL

diff --git a/crypto/o_time.c b/crypto/o_time.c
index f8cf590c2777fd691835e6d6a814985be49aa2a6..49bff49f2bbbde8c4df724dbba4270d722325a88 100644 (file)
--- a/crypto/o_time.c
+++ b/crypto/o_time.c
@@ -289,8 +289,10 @@ int OPENSSL_gmtime_diff(struct tm *from, struct tm *to, int *pday, int *psec)
                diff_sec -= SECS_PER_DAY;
                }
 
-       *pday = (int)diff_day;
-       *psec = diff_sec;
+       if (pday)
+               *pday = (int)diff_day;
+       if (psec)
+               *psec = diff_sec;
 
        return 1;