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-rw-r--r--resolv/res_mkquery.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/resolv/res_mkquery.c b/resolv/res_mkquery.c
index ae0cdb417e..2dda4c0f45 100644
--- a/resolv/res_mkquery.c
+++ b/resolv/res_mkquery.c
@@ -244,7 +244,7 @@ __res_nopt(res_state statp,
 	*cp++ = 0;	/* "." */
 
 	NS_PUT16(T_OPT, cp);	/* TYPE */
-	NS_PUT16(anslen & 0xffff, cp);	/* CLASS = UDP payload size */
+	NS_PUT16(MIN(anslen, 0xffff), cp);	/* CLASS = UDP payload size */
 	*cp++ = NOERROR;	/* extended RCODE */
 	*cp++ = 0;		/* EDNS version */
 	/* XXX Once we support DNSSEC we change the flag value here.  */