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Fix "DNS request from ... to None" messages.

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Some methods are unable to determine the destination address of DNS
packets that we capture. When this happens, change the message so it
just shows where the DNS requests are from.
This commit is contained in:
Scott Kuhl
2020-10-26 15:46:01 -04:00
parent 5c8c707208
commit 7d89b2d89f
1 changed files with 6 additions and 1 deletions

5
sshuttle/client.py

@ -419,6 +419,11 @@ def ondns(listener, method, mux, handlers):
if t is None:
return
srcip, dstip, data = t
# dstip is None if we are using a method where we can't determine
# the destination IP of the DNS request that we captured from the client.
if dstip is None:
debug1('DNS request from %r: %d bytes\n' % (srcip, len(data)))
else:
debug1('DNS request from %r to %r: %d bytes\n' % (srcip, dstip, len(data)))
chan = mux.next_channel()
dnsreqs[chan] = now + 30