Build a DNS message parser.
Build a program that can take a DNS message in binary format encoded in hex strings, parse it into appropriate DNS message and print it out in human friendly string representation.
You code should support at least the A, AAAA and CNAME record types.
Input:
a01d81800001000100000000076578616d706c6503636f6d0000010001c00c0001000100001bbc00045db8d822
Expected Output:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 40989
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0;; QUESTION SECTION:
;example.com. IN A;; ANSWER SECTION:
example.com. 7100 IN A 93.184.216.34
g++ main.cpp -o main./main
# input hex DNS message and press Enter