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DNSD This is a psudo DNS Server, for it does not maintain the resourse records or a zone file itself. It just receives request from client, queries the known NS Server and then return a response to client. You may call it a soft-router which only handles DNS messages:) INSTALL To install, change dir to dnsd where lies the makefile, and type: make You will have the excutable in dnsd/bin/main. To run the program, just type: ./bin/main Make sure that the black.list is in dnsd/ when you run the program. FILE STRUCTURE |-- black.list // the black list for the domains to block |-- inc // includes | |-- black_list.h // a hash table for storing black list entries | |-- common.h // common definitions | |-- dns_consts.h // consts relating to DNS protocol | |-- hhrt.h // the half handled request table(see the documentation for details) | |-- protocol.h // DNS protocol handling | |-- req_queue.h // the request queue | `-- util.h // some auxialary routines |-- makefile // makefile |-- readme.txt // this file `-- src // source file, corresponding to the inc/ |-- black_list.c |-- hhrt.c |-- main.c |-- protocol.c |-- req_queue.c `-- util.c