Upgrade unbound library

These files were pulled from the 1.6.3 release tarball.

This new version builds against OpenSSL version 1.1 which will be
the default in the new Debian Stable which is due to be released
RealSoonNow (tm).

1 files changed, 21 insertions, 5 deletions

diff --git a/external/unbound/doc/libunbound.3.in b/external/unbound/doc/libunbound.3.in
index 1cefbea51..70ed5c2d4 100644
--- a/external/unbound/doc/libunbound.3.in
+++ b/external/unbound/doc/libunbound.3.in
@@ -1,4 +1,4 @@
-.TH "libunbound" "3" "@date@" "NLnet Labs" "unbound @version@"
+.TH "libunbound" "3" "Jun 13, 2017" "NLnet Labs" "unbound 1.6.3"
 .\"
 .\" libunbound.3 -- unbound library functions manual
 .\"
@@ -12,13 +12,14 @@
 .B unbound.h,
 .B ub_ctx,
 .B ub_result,
-.B ub_callback_t,
+.B ub_callback_type,
 .B ub_ctx_create,
 .B ub_ctx_delete,
 .B ub_ctx_set_option,
 .B ub_ctx_get_option,
 .B ub_ctx_config,
 .B ub_ctx_set_fwd,
+.B ub_ctx_set_stub,
 .B ub_ctx_resolvconf,
 .B ub_ctx_hosts,
 .B ub_ctx_add_ta,
@@ -42,7 +43,7 @@
 .B ub_ctx_zone_remove,
 .B ub_ctx_data_add,
 .B ub_ctx_data_remove
-\- Unbound DNS validating resolver @version@ functions.
+\- Unbound DNS validating resolver 1.6.3 functions.
 .SH "SYNOPSIS"
 .B #include <unbound.h>
 .LP
@@ -65,6 +66,12 @@
 \fBub_ctx_set_fwd\fR(\fIstruct ub_ctx*\fR ctx, \fIchar*\fR addr);
 .LP
 \fIint\fR
+\fBub_ctx_set_stub\fR(\fIstruct ub_ctx*\fR ctx, \fIchar*\fR zone,
+\fIchar*\fR addr,
+.br
+		\fIint\fR isprime);
+.LP
+\fIint\fR
 \fBub_ctx_resolvconf\fR(\fIstruct ub_ctx*\fR ctx, \fIchar*\fR fname);
 .LP
 \fIint\fR
@@ -113,7 +120,7 @@
 .br
                  \fIint\fR rrtype, \fIint\fR rrclass, \fIvoid*\fR mydata, 
 .br
-                 \fIub_callback_t\fR callback, \fIint*\fR async_id);
+                 \fIub_callback_type\fR callback, \fIint*\fR async_id);
 .LP
 \fIint\fR
 \fBub_cancel\fR(\fIstruct ub_ctx*\fR ctx, \fIint\fR async_id);
@@ -173,7 +180,7 @@ and
 .B ub_ctx_hosts
 to read them.
 Before you call this, use the openssl functions CRYPTO_set_id_callback and
-CRYPTO_set_locking_callback to set up asyncronous operation if you use
+CRYPTO_set_locking_callback to set up asynchronous operation if you use
 lib openssl (the application calls these functions once for initialisation).
 Openssl 1.0.0 or later uses the CRYPTO_THREADID_set_callback function.
 .TP
@@ -207,6 +214,15 @@ that case the addresses are used as backup servers.
 At this time it is only possible to set configuration before the
 first resolve is done.
 .TP
+.B ub_ctx_set_stub
+Set a stub zone, authoritative dns servers to use for a particular zone.
+IP4 or IP6 address.  If the address is NULL the stub entry is removed.
+Set isprime true if you configure root hints with it.  Otherwise similar to
+the stub zone item from unbound's config file.  Can be called several times,
+for different zones, or to add multiple addresses for a particular zone.
+At this time it is only possible to set configuration before the
+first resolve is done.
+.TP
 .B ub_ctx_resolvconf
 By default the root servers are queried and full resolver mode is used, but
 you can use this call to read the list of nameservers to use from the