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goto Shutdown_Procedure;
Function Definition: function Uint8_To_Character is new Ada.Unchecked_Conversion
Function Body: (Source => Unsigned_8, Target => Character);
function Uint16_To_String is new Ada.Unchecked_Conversion
(Source => Unsigned_16, Target => QAttributes);
-- Actually does the dirty work of creating a question
function Create_QName_Record
(Domain_Section : String)
return String
is
Label : String (1 .. Domain_Section'Length + 1);
begin
if Domain_Section /= "."
then
Label (1) :=
Uint8_To_Character (Unsigned_8 (Domain_Section'Length));
Label
(2 .. Domain_Section'Length + 1) := Domain_Section;
else
-- If this is a "." by itself, it's the terminator, and we need to
-- do special handling
declare
Empty_Label : String (1 .. 1);
begin
Empty_Label (1) := Uint8_To_Character (Unsigned_8 (0));
return Empty_Label;
Function Definition: function String_To_Packet is new Ada.Unchecked_Conversion
Function Body: (Source => String, Target => QData_SEA);
begin
Outbound_Packet.Raw_Data.Data :=
new Stream_Element_Array (1 .. QData'Length);
Outbound_Packet.Raw_Data.Data.all := String_To_Packet (QData);
Outbound_Packet.Raw_Data_Length :=
DNS_PACKET_HEADER_SIZE + QData'Length;
Function Definition: -- Parse_Procedure is an access procedure that is used as a common prototype
Function Body: -- for all parsing functionality dispatched from GCP_Management and other
-- vectors.
--
-- @value Config
-- Configuration struct to update
--
-- @value Value_Str
-- Pure text version of the configuration argument
--
type Parse_Procedure is access procedure
(Config : in out Configuration;
Value_Str : String);
-- GCP_Management is a vector that handles dynamic dispatch to the
-- parsing parameters above; it is used to match key/values from the
-- config file to
package GCP_Management is new Ada.Containers.Indefinite_Ordered_Maps
(String, Parse_Procedure);
GCP_Map : GCP_Management.Map;
-- Configuration constructor
procedure Initialize (Config : in out Configuration) is
begin
-- We initialize the ports to 53 by default
Config.Local_Listen_Port := 53;
Config.Upstream_DNS_Server_Port := 53;
-- No upstream server is set
Config.Upstream_DNS_Server := To_Unbounded_String ("");
end Initialize;
-- Loads the load listen value and sets it in the config record
--
-- @value Config
-- Configuration struct to update
--
-- @value Value_Str
-- Pure text version of the configuration argument
--
procedure Parse_Local_Listen_Port
(Config : in out Configuration;
Value_Str : String)
is
begin
Config.Local_Listen_Port := Port_Type'Value (Value_Str);
exception
when Constraint_Error =>
raise Malformed_Line with "Local_Listen_Port not a valid port number";
end Parse_Local_Listen_Port;
-- Loads the upstream DNS Server from the config file
--
-- @value Config
-- Configuration struct to update
--
-- @value Value_Str
-- Pure text version of the configuration argument
--
procedure Parse_Upstream_DNS_Server
(Config : in out Configuration;