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Index > Windows > windows DNS bug ,absolutely

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caoyunbin001



Joined: 21 Jan 2012
Posts: 20
caoyunbin001
see code,
line 82:after the execution, dontCare should point to IPv4 data structure
according to MSDN:
http://msdn.microsoft.com/en-us/library/windows/desktop/ms682016(v=vs.85).aspx

but actually, it points to a DNS_RECORD !
see code , it extracts IPv4 address from that DNS_RECORD,
but according to msdn, see attachment,
we should use
mov eax,[dontCare]
mov eax,[eax]
to get the IPv4 address which is incorrect!



put here to let others know about this bug,
avoid future confusing.
and if you have another better idea of resolve an URL to an IP address,
please tell me,
I'm writing a HTTP lib,
and I found winHTTP is fucking useless,
so I'm writing it using Socket,
which the first problem is to resolve an URL to an IP address.


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2012-02-18_190431.png


Post 18 Feb 2012, 11:09
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AsmGuru62



Joined: 28 Jan 2004
Posts: 1412
Location: Toronto, Canada
AsmGuru62
MSDN has bugs too.
Smile
Post 18 Feb 2012, 12:39
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