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-rw-r--r--resolv/resolv.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/resolv/resolv.h b/resolv/resolv.h
index 3ef714f458..e49c29d2fe 100644
--- a/resolv/resolv.h
+++ b/resolv/resolv.h
@@ -218,6 +218,7 @@ struct res_sym {
 #define RES_SNGLKUP	0x00200000	/* one outstanding request at a time */
 #define RES_SNGLKUPREOP	0x00400000	/* -"-, but open new socket for each
 					   request */
+#define RES_USE_DNSSEC	0x00800000	/* use DNSSEC using OK bit in OPT */
 
 #define RES_DEFAULT	(RES_RECURSE|RES_DEFNAMES|RES_DNSRCH|RES_NOIP6DOTINT)