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-rw-r--r--resolv/resolv.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/resolv/resolv.h b/resolv/resolv.h
index e8f384db92..8d37d420e0 100644
--- a/resolv/resolv.h
+++ b/resolv/resolv.h
@@ -199,6 +199,8 @@ struct res_sym {
 #define	RES_NOCHECKNAME	0x00008000	/* do not check names for sanity. */
 #define	RES_KEEPTSIG	0x00010000	/* do not strip TSIG records */
 #define	RES_BLAST	0x00020000	/* blast all recursive servers */
+#define RES_USEBSTRING	0x00040000	/* IPv6 reverse lookup with byte
+					   strings */
 
 #define RES_DEFAULT	(RES_RECURSE | RES_DEFNAMES | RES_DNSRCH)