Incorrect DomainNameBufferOffset/WorkstationBufferOffset values when DomainName/Workstation empty

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In ntlm.py create_NTLM_NEGOTIATE_MESSAGE

WorkstationBufferOffset = BODY_LENGTH when Workstation is empty (len=0)
DomainNameBufferOffset = BODY_LENGTH+WorkstationBufferOffset when DomainName is 
empty

When Workstation or DomainName value is empty, their corresponding BufferOffset 
values should be 0. Otherwise, server can respond with BAD REQUEST status code 
(this happens all the time in my case with some third-party webservice).

Attached patch fixes this issue.

Original issue reported on code.google.com by [email protected] on 2 Oct 2013 at 1:52

Attachments:

• ntlm.py.patch