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, 97 insertions, 83 deletions

diff --git a/external/unbound/pythonmod/doc/examples/example4.rst b/external/unbound/pythonmod/doc/examples/example4.rst
index b665351e8..338210990 100644
--- a/external/unbound/pythonmod/doc/examples/example4.rst
+++ b/external/unbound/pythonmod/doc/examples/example4.rst
@@ -1,15 +1,19 @@
 DNS-based language dictionary
-===============================
+=============================
 
 This example shows how to create a simple language dictionary based on **DNS**
-service within 15 minutes. The translation will be performed using TXT resource records.
+service within 15 minutes. The translation will be performed using TXT resource
+records.
 
 Key parts
------------
+---------
 
 Initialization
-~~~~~~~~~~~~~~~~~~~~~~~
-On **init()** module loads dictionary from a text file containing records in ``word [tab] translation`` format.
+~~~~~~~~~~~~~~
+
+On **init()** module loads dictionary from a text file containing records in
+``word [tab] translation`` format.
+
 ::
 
    def init(id, cfg):
@@ -20,11 +24,14 @@ On **init()** module loads dictionary from a text file containing records in ``w
 The suitable file can be found at http://slovnik.zcu.cz
 
 DNS query and word lookup
-~~~~~~~~~~~~~~~~~~~~~~~~~~~
+~~~~~~~~~~~~~~~~~~~~~~~~~
 
-Let's define the following format od DNS queries: ``word1[.]word2[.] ... wordN[.]{en,cs}[._dict_.cz.]``.
+Let's define the following format od DNS queries:
+``word1[.]word2[.] ... wordN[.]{en,cs}[._dict_.cz.]``.
 Word lookup is done by simple ``dict`` lookup from broken DNS request.
-Query name is divided into a list of labels. This list is accessible as qname_list attribute.
+Query name is divided into a list of labels. This list is accessible as
+``qname_list`` attribute.
+
 ::
 
    aword = ' '.join(qstate.qinfo.qname_list[0:-4]) #skip last four labels
@@ -37,35 +44,40 @@ Query name is divided into a list of labels. This list is accessible as qname_li
    if (adict == "cs") and (aword in cz_dict):
       words = cz_dict[aword] # CS -> EN
 
-In the first step, we get a string in the form: ``word1[space]word2[space]...word[space]``.
-In the second assignment, fourth label from the end is obtained. This label should contains *"cs"* or *"en"*.
-This label determines the direction of translation.
-
+In the first step, we get a string in the form:
+``word1[space]word2[space]...word[space]``.
+In the second assignment, fourth label from the end is obtained. This label
+should contains *"cs"* or *"en"*. This label determines the direction of
+translation.
 
 Forming of a DNS reply
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+~~~~~~~~~~~~~~~~~~~~~~
 
 DNS reply is formed only on valid match and added as TXT answer.
+
 ::
 
-	msg = DNSMessage(qstate.qinfo.qname_str, RR_TYPE_TXT, RR_CLASS_IN, PKT_AA)
+    msg = DNSMessage(qstate.qinfo.qname_str, RR_TYPE_TXT, RR_CLASS_IN, PKT_AA)
 
-	for w in words:
-		msg.answer.append("%s 300 IN TXT \"%s\"" % (qstate.qinfo.qname_str, w.replace("\"", "\\\"")))
+    for w in words:
+        msg.answer.append("%s 300 IN TXT \"%s\"" % (qstate.qinfo.qname_str, w.replace("\"", "\\\"")))
 
-	if not msg.set_return_msg(qstate):
-		qstate.ext_state[id] = MODULE_ERROR 
-		return True
+    if not msg.set_return_msg(qstate):
+        qstate.ext_state[id] = MODULE_ERROR 
+        return True
 
-	qstate.return_rcode = RCODE_NOERROR
-	qstate.ext_state[id] = MODULE_FINISHED 
-	return True
+    qstate.return_rcode = RCODE_NOERROR
+    qstate.ext_state[id] = MODULE_FINISHED 
+    return True
 
-In the first step, a :class:`DNSMessage` instance is created for a given query *(type TXT)*.
+In the first step, a :class:`DNSMessage` instance is created for a given query
+*(type TXT)*.
 The fourth argument specifies the flags *(authoritative answer)*.
-In the second step, we append TXT records containing the translation *(on the right side of RR)*.
+In the second step, we append TXT records containing the translation *(on the
+right side of RR)*.
 Then, the response is finished and ``qstate.return_msg`` contains new response.
-If no error, the module sets :attr:`module_qstate.return_rcode` and :attr:`module_qstate.ext_state`.
+If no error, the module sets :attr:`module_qstate.return_rcode` and
+:attr:`module_qstate.ext_state`.
 
 **Steps:**
 
@@ -82,80 +94,82 @@ Run the Unbound server:
 
 In case you use own configuration file, don't forget to enable Python module::
 
-	module-config: "validator python iterator"
+    module-config: "validator python iterator"
 
 and use valid script path::
 
-	python-script: "./examples/dict.py"
+    python-script: "./examples/dict.py"
 
 The translation from english word *"a bar fly"* to Czech can be done by doing:
 
 ``>>>dig TXT @127.0.0.1 a.bar.fly.en._dict_.cz``
 
-::	
+::
+
+    ; (1 server found)
+    ;; global options:  printcmd
+    ;; Got answer:
+    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 48691
+    ;; flags: aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
+
+    ;; QUESTION SECTION:
+    ;a.bar.fly.en._dict_.cz.    IN  TXT
+
+    ;; ANSWER SECTION:
+    a.bar.fly.en._dict_.cz. 300 IN  TXT "barov\253 povale\232"
+
+    ;; Query time: 5 msec
+    ;; SERVER: 127.0.0.1#53(127.0.0.1)
+    ;; WHEN: Mon Jan 01 17:44:18 2009
+    ;; MSG SIZE  rcvd: 67
 
-	; (1 server found)
-	;; global options:  printcmd
-	;; Got answer:
-	;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 48691
-	;; flags: aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
-	
-	;; QUESTION SECTION:
-	;a.bar.fly.en._dict_.cz.		IN	TXT
-	
-	;; ANSWER SECTION:
-	a.bar.fly.en._dict_.cz.	300	IN	TXT	"barov\253 povale\232"
-	
-	;; Query time: 5 msec
-	;; SERVER: 127.0.0.1#53(127.0.0.1)
-	;; WHEN: Mon Jan 01 17:44:18 2009
-	;; MSG SIZE  rcvd: 67
-	
 ``>>>dig TXT @127.0.0.1 nic.cs._dict_.cz``
+
 ::
 	
-	; <<>> DiG 9.5.0-P2 <<>> TXT @127.0.0.1 nic.cs._dict_.cz
-	; (1 server found)
-	;; global options:  printcmd
-	;; Got answer:
-	;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 58710
-	;; flags: aa rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 0
-	
-	;; QUESTION SECTION:
-	;nic.cs._dict_.cz.		IN	TXT
-	
-	;; ANSWER SECTION:
-	nic.cs._dict_.cz.	300	IN	TXT	"aught"
-	nic.cs._dict_.cz.	300	IN	TXT	"naught"
-	nic.cs._dict_.cz.	300	IN	TXT	"nihil"
-	nic.cs._dict_.cz.	300	IN	TXT	"nix"
-	nic.cs._dict_.cz.	300	IN	TXT	"nothing"
-	nic.cs._dict_.cz.	300	IN	TXT	"zilch"
-	
-	;; Query time: 0 msec
-	;; SERVER: 127.0.0.1#53(127.0.0.1)
-	;; WHEN: Mon Jan 01 17:45:39 2009
-	;; MSG SIZE  rcvd: 143
-
-Proof that the unbound still works as resolver.
+    ; <<>> DiG 9.5.0-P2 <<>> TXT @127.0.0.1 nic.cs._dict_.cz
+    ; (1 server found)
+    ;; global options:  printcmd
+    ;; Got answer:
+    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 58710
+    ;; flags: aa rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 0
+
+    ;; QUESTION SECTION:
+    ;nic.cs._dict_.cz.      IN  TXT
+
+    ;; ANSWER SECTION:
+    nic.cs._dict_.cz.   300 IN  TXT "aught"
+    nic.cs._dict_.cz.   300 IN  TXT "naught"
+    nic.cs._dict_.cz.   300 IN  TXT "nihil"
+    nic.cs._dict_.cz.   300 IN  TXT "nix"
+    nic.cs._dict_.cz.   300 IN  TXT "nothing"
+    nic.cs._dict_.cz.   300 IN  TXT "zilch"
+
+    ;; Query time: 0 msec
+    ;; SERVER: 127.0.0.1#53(127.0.0.1)
+    ;; WHEN: Mon Jan 01 17:45:39 2009
+    ;; MSG SIZE  rcvd: 143
+
+    Proof that the unbound still works as resolver.
 
 ``>>>dig A @127.0.0.1 www.nic.cz``
+
 ::
 
-	; (1 server found)
-	;; global options:  printcmd
-	;; Got answer:
-	;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19996
-	;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 5
-	
-	;; QUESTION SECTION:
-	;www.nic.cz.			IN	A
-	
-	;; ANSWER SECTION:
-	www.nic.cz.		1662	IN	A	217.31.205.50
-	
-	;; AUTHORITY SECTION:
-	...
+    ; (1 server found)
+    ;; global options:  printcmd
+    ;; Got answer:
+    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19996
+    ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 5
+
+    ;; QUESTION SECTION:
+    ;www.nic.cz.            IN  A
+
+    ;; ANSWER SECTION:
+    www.nic.cz.     1662    IN  A   217.31.205.50
+
+    ;; AUTHORITY SECTION:
+    ...
 
 Complete source code
 --------------------