ldns base 1.6.9 from tarball

libs/ldns/contrib/python/examples/ldns-axfr.py

@@ -0,0 +1,56 @@
+#!/usr/bin/python
+# vim:fileencoding=utf-8
+#
+# AXFR client with IDN (Internationalized Domain Names) support
+#
+
+import ldns
+import encodings.idna
+
+def utf2name(name):
+    return '.'.join([encodings.idna.ToASCII(a) for a in name.split('.')])
+def name2utf(name):
+    return '.'.join([encodings.idna.ToUnicode(a) for a in name.split('.')])
+
+
+resolver = ldns.ldns_resolver.new_frm_file("/etc/resolv.conf")
+
+#addr = ldns.ldns_get_rr_list_addr_by_name(resolver, "zone.nic.cz", ldns.LDNS_RR_CLASS_IN, ldns.LDNS_RD);
+addr = resolver.get_addr_by_name("zone.nic.cz", ldns.LDNS_RR_CLASS_IN, ldns.LDNS_RD);
+if (not addr):
+    raise Exception("Can't retrieve server address")
+
+print "Addr_by_name:",str(addr).replace("\n","; ")
+
+#remove all nameservers
+while resolver.pop_nameserver(): 
+    pass
+
+#insert server addr
+for rr in addr.rrs():
+    resolver.push_nameserver_rr(rr)
+
+#AXFR transfer
+status = resolver.axfr_start(utf2name(u"háčkyčárky.cz"), ldns.LDNS_RR_CLASS_IN)
+if status != ldns.LDNS_STATUS_OK:
+    raise Exception("Can't start AXFR. Error: %s" % ldns.ldns_get_errorstr_by_id(status))
+
+#Print results
+while True:
+    rr = resolver.axfr_next()
+    if not rr: 
+        break
+
+    rdf = rr.owner()
+    if (rdf.get_type() == ldns.LDNS_RDF_TYPE_DNAME):
+        print "RDF owner: type=",rdf.get_type_str(),"data=",name2utf(str(rdf))
+    else:
+        print "RDF owner: type=",rdf.get_type_str(),"data=",str(rdf)
+    print "   RR type=", rr.get_type_str()," ttl=",rr.ttl()
+    for rdf in rr.rdfs():
+        if (rdf.get_type() == ldns.LDNS_RDF_TYPE_DNAME):
+            print "   RDF: type=",rdf.get_type_str(),"data=",name2utf(str(rdf))
+        else:
+            print "   RDF: type=",rdf.get_type_str(),"data=",str(rdf)
+
+    print

libs/ldns/contrib/python/examples/ldns-buf.py

@@ -0,0 +1,8 @@
+#!/usr/bin/python
+
+import ldns
+
+buf = ldns.ldns_buffer(1024)
+buf.printf("Test buffer")
+print buf
+

libs/ldns/contrib/python/examples/ldns-dnssec.py

@@ -0,0 +1,45 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+import ldns
+import sys
+
+debug = True
+
+# Check args
+argc = len(sys.argv)
+name = "www.nic.cz"
+if argc < 2:
+   print "Usage:", sys.argv[0], "domain [resolver_addr]"
+   sys.exit(1)
+else:
+   name = sys.argv[1]
+
+# Create resolver
+resolver = ldns.ldns_resolver.new_frm_file("/etc/resolv.conf")
+resolver.set_dnssec(True)
+
+# Custom resolver
+if argc > 2:
+   # Clear previous nameservers
+   ns = resolver.pop_nameserver()
+   while ns != None:
+      ns = resolver.pop_nameserver()
+   ip = ldns.ldns_rdf.new_frm_str(sys.argv[2], ldns.LDNS_RDF_TYPE_A)
+   resolver.push_nameserver(ip)
+
+# Resolve DNS name
+pkt = resolver.query(name, ldns.LDNS_RR_TYPE_A, ldns.LDNS_RR_CLASS_IN)
+if pkt and pkt.answer():
+
+   # Debug
+   if debug:
+      print "NS returned:", pkt.get_rcode(), "(AA: %d AD: %d)" % ( pkt.ad(), pkt.ad() )
+
+   # SERVFAIL indicated bogus name
+   if pkt.get_rcode() is ldns.LDNS_RCODE_SERVFAIL:
+      print name, "is bogus"
+
+   # Check AD (Authenticated) bit
+   if pkt.get_rcode() is ldns.LDNS_RCODE_NOERROR:
+      if pkt.ad(): print name, "is secure"
+      else:        print name, "is insecure"

libs/ldns/contrib/python/examples/ldns-higher.py

@@ -0,0 +1,36 @@
+#!/usr/bin/python
+import ldns
+
+resolver = ldns.ldns_resolver.new_frm_file("/etc/resolv.conf")
+
+dnn = ldns.ldns_dname("www.google.com")
+print dnn.get_type_str(), dnn
+
+dna = ldns.ldns_rdf.new_frm_str("74.125.43.99",ldns.LDNS_RDF_TYPE_A)
+print dna.get_type_str(), dna
+
+name = resolver.get_name_by_addr(dna)
+if (not name): raise Exception("Can't retrieve server name")
+for rr in name.rrs():
+    print rr
+
+name = resolver.get_name_by_addr("74.125.43.99")
+if (not name): raise Exception("Can't retrieve server name")
+for rr in name.rrs():
+    print rr
+
+addr = resolver.get_addr_by_name(dnn)
+if (not addr): raise Exception("Can't retrieve server address")
+for rr in addr.rrs():
+    print rr
+
+addr = resolver.get_addr_by_name("www.google.com")
+if (not addr): raise Exception("Can't retrieve server address")
+for rr in addr.rrs():
+    print rr
+
+hosts = ldns.ldns_rr_list.new_frm_file("/etc/hosts")
+if (not hosts): raise Exception("Can't retrieve the content of file")
+for rr in hosts.rrs():
+    print rr
+

libs/ldns/contrib/python/examples/ldns-keygen.py

@@ -0,0 +1,46 @@
+#!/usr/bin/python
+#
+# This example shows how to generate public/private key pair
+#
+import ldns
+
+algorithm = ldns.LDNS_SIGN_DSA
+bits = 512
+
+ldns.ldns_init_random(open("/dev/random","rb"), (bits+7)//8)
+
+domain = ldns.ldns_dname("example.")
+
+#generate a new key
+key = ldns.ldns_key.new_frm_algorithm(algorithm, bits);
+print key
+
+#set owner
+key.set_pubkey_owner(domain)
+
+#create the public from the ldns_key
+pubkey = key.key_to_rr()
+#previous command is equivalent to
+# pubkey = ldns.ldns_key2rr(key)
+print pubkey
+
+#calculate and set the keytag
+key.set_keytag(ldns.ldns_calc_keytag(pubkey))
+
+#build the DS record
+ds = ldns.ldns_key_rr2ds(pubkey, ldns.LDNS_SHA1)
+print ds
+
+owner, tag = pubkey.owner(), key.keytag()
+
+#write public key to .key file
+fw = open("key-%s-%d.key" % (owner,tag), "wb")
+pubkey.print_to_file(fw)
+
+#write private key to .priv file
+fw = open("key-%s-%d.private" % (owner,tag), "wb")
+key.print_to_file(fw)
+
+#write DS to .ds file
+fw = open("key-%s-%d.ds" % (owner,tag), "wb")
+ds.print_to_file(fw)

libs/ldns/contrib/python/examples/ldns-mx.py

@@ -0,0 +1,15 @@
+#!/usr/bin/python
+#
+# MX is a small program that prints out the mx records for a particular domain
+#
+import ldns
+
+resolver = ldns.ldns_resolver.new_frm_file("/etc/resolv.conf")
+
+pkt = resolver.query("nic.cz", ldns.LDNS_RR_TYPE_MX,ldns.LDNS_RR_CLASS_IN)
+
+if (pkt):
+    mx = pkt.rr_list_by_type(ldns.LDNS_RR_TYPE_MX, ldns.LDNS_SECTION_ANSWER)
+    if (mx):
+       mx.sort()
+       print mx

libs/ldns/contrib/python/examples/ldns-mx1.py

@@ -0,0 +1,18 @@
+#!/usr/bin/python
+#
+# MX is a small program that prints out the mx records for a particular domain
+#
+import ldns
+
+dname = ldns.ldns_dname("nic.cz")
+print dname
+
+resolver = ldns.ldns_resolver.new_frm_file("/etc/resolv.conf")
+
+pkt = resolver.query(dname, ldns.LDNS_RR_TYPE_MX,ldns.LDNS_RR_CLASS_IN)
+
+if (pkt):
+    mx = pkt.rr_list_by_type(ldns.LDNS_RR_TYPE_MX, ldns.LDNS_SECTION_ANSWER)
+    if (mx):
+       mx.sort()
+       print mx

libs/ldns/contrib/python/examples/ldns-mx2.py

@@ -0,0 +1,19 @@
+#!/usr/bin/python
+#
+# MX is a small program that prints out the mx records for a particular domain
+#
+import ldns
+
+resolver = ldns.ldns_resolver.new_frm_file("/etc/resolv.conf")
+
+pkt = resolver.query("nic.cz", ldns.LDNS_RR_TYPE_MX,ldns.LDNS_RR_CLASS_IN)
+if (pkt) and (pkt.answer()):
+
+    for rr in pkt.answer().rrs():
+        if (rr.get_type() != ldns.LDNS_RR_TYPE_MX):
+            continue
+
+        rdf = rr.owner()
+        print rdf," ",rr.ttl()," ",rr.get_class_str()," ",rr.get_type_str()," ",
+        print " ".join(str(rdf) for rdf in rr.rdfs())
+

libs/ldns/contrib/python/examples/ldns-newpkt.py

@@ -0,0 +1,17 @@
+#!/usr/bin/python
+
+import ldns
+
+pkt = ldns.ldns_pkt.new_query_frm_str("www.google.com",ldns.LDNS_RR_TYPE_ANY, ldns.LDNS_RR_CLASS_IN, ldns.LDNS_QR | ldns.LDNS_AA)
+
+rra = ldns.ldns_rr.new_frm_str("www.google.com. IN A 192.168.1.1",300)
+rrb = ldns.ldns_rr.new_frm_str("www.google.com. IN TXT Some\ Description",300)
+
+list = ldns.ldns_rr_list()
+if (rra): list.push_rr(rra)
+if (rrb): list.push_rr(rrb)
+
+pkt.push_rr_list(ldns.LDNS_SECTION_ANSWER, list)
+
+print "Packet:"
+print pkt

libs/ldns/contrib/python/examples/ldns-signzone.py

@@ -0,0 +1,65 @@
+#!/usr/bin/python
+# This example shows how to sign a given zone file with private key
+
+import ldns
+import sys, os, time
+
+#private key TAG which identifies the private key 
+#use ldns-keygen.py in order to obtain private key
+keytag = 30761
+
+# Read zone file
+#-------------------------------------------------------------
+
+zone = ldns.ldns_zone.new_frm_fp(open("zone.txt","r"), None, 0, ldns.LDNS_RR_CLASS_IN)
+soa = zone.soa()
+origin = soa.owner()
+
+# Prepare keys
+#-------------------------------------------------------------
+
+#Read private key from file
+keyfile = open("key-%s-%d.private" % (origin, keytag), "r");
+key = ldns.ldns_key.new_frm_fp(keyfile)
+
+#Read public key from file
+pubfname = "key-%s-%d.key" % (origin, keytag)
+pubkey = None
+if os.path.isfile(pubfname):
+   pubkeyfile = open(pubfname, "r");
+   pubkey,_,_,_ = ldns.ldns_rr.new_frm_fp(pubkeyfile)
+
+if not pubkey:
+   #Create new public key
+   pubkey = key.key_to_rr()
+
+#Set key expiration
+key.set_expiration(int(time.time()) + 365*60*60*24) #365 days
+
+#Set key owner (important step)
+key.set_pubkey_owner(origin)
+
+#Insert DNSKEY RR
+zone.push_rr(pubkey)
+
+# Sign zone
+#-------------------------------------------------------------
+
+#Create keylist and push private key
+keys = ldns.ldns_key_list()
+keys.push_key(key)
+
+#Add SOA
+signed_zone = ldns.ldns_dnssec_zone()
+signed_zone.add_rr(soa)
+
+#Add RRs
+for rr in zone.rrs().rrs():
+   print "RR:",str(rr),
+   signed_zone.add_rr(rr)
+
+added_rrs = ldns.ldns_rr_list()
+status = signed_zone.sign(added_rrs, keys)
+if (status == ldns.LDNS_STATUS_OK):
+   signed_zone.print_to_file(open("zone_signed.txt","w"))
+

libs/ldns/contrib/python/examples/ldns-zone.py

@@ -0,0 +1,15 @@
+#!/usr/bin/python
+import ldns
+
+#Read zone from file
+zone = ldns.ldns_zone.new_frm_fp(open("zone.txt","r"), None, 0, ldns.LDNS_RR_CLASS_IN)
+print zone
+
+print "SOA:", zone.soa()
+for r in zone.rrs().rrs():
+   print "RR:", r
+
+
+zone = ldns.ldns_zone()
+#print zone
+

libs/ldns/contrib/python/examples/zone.txt

@@ -0,0 +1,15 @@
+$ORIGIN example.
+$TTL 600
+
+example.        IN SOA  example. admin.example. (
+                                2008022501 ; serial
+                                28800      ; refresh (8 hours)
+                                7200       ; retry (2 hours)
+                                604800     ; expire (1 week)
+                                18000      ; minimum (5 hours)
+                                )
+
+@       IN      MX      10 mail.example.
+@       IN      NS      ns1
+@       IN      NS      ns2
+@       IN      A       192.168.1.1