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Old 12-26-2012, 04:34 AM   #1
Registered: Sep 2009
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rDNS query answer

Tried to parse reverse DNS query on low-level via libresolv.a means
(see res_query in man resolver(3)) f

I'm supposed to obtain for ip e.g. result as:,

but instead of that in filed rdata of struct __ns_rr
(see ns_initparse, ns_msg_count, ns_parserr in nameser.h) i obtained
smth. like that:

So, why it substitutes dot with different numbers (id's of DNS nodes?) and where can i read about that?
Old 12-26-2012, 12:16 PM   #2
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those look like ascii escape sequences which may be by design from the library used for the query. I may be wrong but this might be something to look into.


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