document RES_USE_DNSSEC; text tweaked by sthen

ok jakob

1 files changed, 6 insertions, 2 deletions

diff --git a/src/lib/libc/net/resolver.3 b/src/lib/libc/net/resolver.3
index 97b7a2d8cc..ea181e3685 100644
--- a/src/lib/libc/net/resolver.3
+++ b/src/lib/libc/net/resolver.3
@@ -1,4 +1,4 @@
-.\"     $OpenBSD: resolver.3,v 1.26 2012/11/29 21:37:13 jmc Exp $
+.\"     $OpenBSD: resolver.3,v 1.27 2012/12/12 14:48:18 jmc Exp $
 .\"
 .\" Copyright (c) 1985, 1991, 1993
 .\"     The Regents of the University of California.  All rights reserved.
@@ -27,7 +27,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: November 29 2012 $
+.Dd $Mdocdate: December 12 2012 $
 .Dt RESOLVER 3
 .Os
 .Sh NAME
@@ -191,6 +191,10 @@ allowing them to take advantage of a non-default receive buffer size,
 and thus to send larger replies.
 DNS query packets with the EDNS0 extension are not compatible with
 non-EDNS0 DNS servers.
+.It Dv RES_USE_DNSSEC
+Request that the resolver uses
+Domain Name System Security Extensions (DNSSEC),
+as defined in RFCs 4033, 4034, and 4035.
 .El
 .Pp
 The