[bind10-dev] bind source code

[Myeong Lim]

Hi all.

I started reading source code of bind 9.

Is there any book and documentation of the data sturctures etc?

The immediate questions I have is:

1.
    I am trying to modify (spoof) the incoming query right after it
receives.
    For example, when smeone requests like below
           %dig  www.google.com

    Inside bind code, right after I receive it,  I want to change
www.google.com to  www.yahoo.com.
    Which module/data structure is the right place?
     I am thinking right after* dns_message_parse * of* client.c.*
     When I put the debugging statement, query is saved to *
message->sections[0].head->ndata*

           result = dns_message_parse(client->message, buffer, 0);

           fprintf(stderr, "After Parsing,
client->message->sections[0].head->ndata= %s\n",
client->message->sections[0].head->ndata);

2.
   Second question is related to the first question.

  ndata has the format of www[0001]google[0008]com
  Each dot is replace by couple bytes (0003,0008 something like that).
  What is this? Why dot is replaced like that.
  I found that* dns_name_print* (0 put it back to www.google.com though.

Any help on this?

I really hope some documentation about data sturctures of the bind code.

Thanks.

-Myeong
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