Protocol.Dns.Header (expcap v0.1.2) View Source
A parsed DNS packet header
Link to this section Summary
Functions
Is this response authoritative?
What is the op code of this DNS packet?
Is this a query or a response?
Is recursion available?
What is the r code of this DNS packet?
Is recursion desired?
Is this response truncated?
The first bit is reserved. The second bit indciates if the response was authenticated or not. The third bit indciates if the data was authenticated or not.
Link to this section Types
Specs
t() :: %Protocol.Dns.Header{
aa: bitstring(),
ancnt: non_neg_integer(),
arcnt: non_neg_integer(),
id: binary(),
nscnt: non_neg_integer(),
opcode: bitstring(),
qdcnt: non_neg_integer(),
qr: bitstring(),
ra: bitstring(),
rcode: bitstring(),
rd: bitstring(),
tc: bitstring(),
z: bitstring()
}
Link to this section Functions
Specs
aa_name(binary()) :: :NOT_AUTHORITATIVE | :AUTHORITATIVE | :""
Is this response authoritative?
Specs
opcode_name(non_neg_integer()) :: :QUERY | :STATUS | :NOTIFY | :UPDATE | :""
What is the op code of this DNS packet?
Specs
qr_name(binary()) :: :QUERY | :ANSWER
Is this a query or a response?
Specs
ra_name(binary()) :: :NO_RECURSION_AVAILABLE | :RECURSION_AVAILABLE | :""
Is recursion available?
Specs
rcode_name(non_neg_integer()) :: :atom
What is the r code of this DNS packet?
Specs
rd_name(binary()) :: :NO_RECURSION_DESIRED | :RECURSION_DESIRED | :""
Is recursion desired?
Specs
tc_name(binary()) :: :NOT_TRUNCATED | :TRUNCATED | :""
Is this response truncated?
Specs
z_name(binary()) :: :atom
The first bit is reserved. The second bit indciates if the response was authenticated or not. The third bit indciates if the data was authenticated or not.