Commit: 6d535bbddf0c15ce53ac4f64a91a2f7d315d484c - py_ipv6_info (hg)

A small utility to fetch information about IPv6 addresses and possibly also any associated IPv4 address.

Commit MetaInfo

• Revisão: 6d535bbddf0c15ce53ac4f64a91a2f7d315d484c (tree)
• Hora: 2017-06-06 15:56:53
• Autor: Eric Hopper <hopper@omni...>
• Commiter: Eric Hopper

Mensagem de Log

Hopefully this is now Python 2/3 agnostic.

Mudança Sumário

• modified: py_ipv6_info

Diff

diff -r 40ca37f347fa -r 6d535bbddf0c py_ipv6_info
--- a/py_ipv6_info	Sat Dec 31 02:40:04 2016 -0800
+++ b/py_ipv6_info	Mon Jun 05 23:56:53 2017 -0700
@@ -1,5 +1,6 @@
 #!/usr/bin/python
 
+from __future__ import print_function
 import socket
 import sys
 import struct
@@ -35,12 +36,12 @@
 
 def analyze_ipv4(s, raw, addrtype):
     numaddr = struct.unpack('!L', raw)[0]
-    print "Got IPv4 address: %s\n  - in raw hex 0x%08x" % (s, numaddr)
+    print("Got IPv4 address: %s\n  - in raw hex 0x%08x" % (s, numaddr))
     if addrtype == TYPE_TEREDONAT:
-        print "  - in obfuscated hex 0x%08x" % (numaddr ^ 0xffffffff,)
+        print("  - in obfuscated hex 0x%08x" % (numaddr ^ 0xffffffff,))
     canon = socket.inet_ntop(socket.AF_INET, raw)
     if canon != s:
-        print "  - Canonical %s" % (canon,)
+        print("  - Canonical %s" % (canon,))
     else:
         canon = s
     revname = dns.reversename.from_address(canon)
@@ -50,8 +51,8 @@
     except dns.exception.DNSException:
         pass
     if addrtype == TYPE_6TO4:
-        print "  - The 6to4 IPv6 prefix is 2002:%x:%x::/48" % \
-            (numaddr >> 16, numaddr & 0xffff)
+        print("  - The 6to4 IPv6 prefix is 2002:%x:%x::/48" % \
+              (numaddr >> 16, numaddr & 0xffff))
     while (answer is None) and (len(revname) > 4):
         revname = revname.parent()
         try:
@@ -59,25 +60,25 @@
         except dns.exception.DNSException:
             pass
     if answer is None:
-        print "  - *** Reverse lookup failed for %s ***" % (revname,)
+        print("  - *** Reverse lookup failed for %s ***" % (revname,))
     else:
         if len(revname) != 7:
-            print "  - *** The initial PTR lookup failed ***"
-        print "  - %s" % (revname,)
+            print("  - *** The initial PTR lookup failed ***")
+        print("  - %s" % (revname,))
         for result in answer.rrset:
-            print "    - %s: %s" % (dnstype.to_text(result.rdtype), result)
+            print("    - %s: %s" % (dnstype.to_text(result.rdtype), result))
 
 def analyze_ipv6(s, raw):
     numaddr = struct.unpack('!QQ', raw)
     numaddr = numaddr[0] * 2**64 + numaddr[1]
-    print "Got IPv6 address: %s\n  - in raw hex 0x%016x" % (s, numaddr)
+    print("Got IPv6 address: %s\n  - in raw hex 0x%016x" % (s, numaddr))
     canon = socket.inet_ntop(socket.AF_INET6, raw)
     if canon != s:
-        print "  - Canonical %s" % (canon,)
+        print("  - Canonical %s" % (canon,))
     else:
         canon = s
     if ((numaddr >> 125) & 0x7) != 1:
-        print "  - === Not a globally routable address"
+        print("  - === Not a globally routable address")
         return
     revname = dns.reversename.from_address(canon)
     answer = None
@@ -93,37 +94,39 @@
             pass
     if answer is not None:
         if len(revname) != 35:
-            print "  - *** The initial PTR lookup failed ***"
-        print "  - %s" % (revname,)
+            print("  - *** The initial PTR lookup failed ***")
+        print("  - %s" % (revname,))
         for result in answer.rrset:
-            print "    - %s: %s" % (dnstype.to_text(result.rdtype), result)
+            print( "    - %s: %s" % (dnstype.to_text(result.rdtype), result))
     else:
-        print "  - *** Unable to reverse lookup any information ***"
+        print("  - *** Unable to reverse lookup any information ***")
     if (numaddr >> 112) == 0x2002:
         raw4 = struct.pack('!L', (numaddr >> 80) & 0xffffffff)
         s4 = socket.inet_ntop(socket.AF_INET, raw4)
-        print "  - 6to4 address %s" % (s4,)
-        print "-+-+-+-"
+        print("  - 6to4 address %s" % (s4,))
+        print("-+-+-+-")
         analyze_ipv4(s4, raw4, TYPE_6TO4)
-        print "-+-+-+-"
+        print("-+-+-+-")
     elif (numaddr >> 96) == 0x20010000:
         rawnat4 = struct.pack('!L', (numaddr & 0xffffffff) ^ 0xffffffff)
         rawserv4 = struct.pack('!L', (numaddr >> 64) & 0xffffffff)
         snat4 = socket.inet_ntop(socket.AF_INET, rawnat4)
         sserv4 = socket.inet_ntop(socket.AF_INET, rawserv4)
-        print "  - Teredo         NAT (the public IPv4 address): %s" % (snat4,)
-        print "  - Teredo server (assigner of the IPv6 address): %s" % (sserv4,)
-        print "-+-+-+- (Teredo NAT (the public IPv4 address of the system))"
+        print("  - Teredo         NAT (the public IPv4 address): %s" % (snat4,))
+        print("  - Teredo server (assigner of the IPv6 address): %s" % (sserv4,))
+        print("-+-+-+- (Teredo NAT (the public IPv4 address of the system))")
         analyze_ipv4(snat4, rawnat4, TYPE_TEREDONAT)
-        print "-+-+-+- (Teredo server (probably not important))"
+        print("-+-+-+- (Teredo server (probably not important))")
         analyze_ipv4(sserv4, rawserv4, TYPE_TEREDOSERVER)
 
 if __name__ == '__main__':
     if len(sys.argv) > 1:
-        print "==========="
+        print("===========")
     for x in sys.argv[1:]:
         try:
             analyze_addr(x)
-        except BadAddress, a:
-            print >>sys.stderr, "%s doesn't appear to be a valid numeric IPv4 or IPv6 address." % (x, )
-        print "==========="
+        except BadAddress as a:
+            print("%s doesn't appear to be a valid numeric IPv4 or IPv6 address." \
+                  % (x, ),
+                  file=sys.stderr)
+        print("===========")