/usr/share/ada/adainclude/anet/anet-sockets-thin.adb is in libanet0.1-dev 0.1-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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-- Copyright (C) 2011, 2012 secunet Security Networks AG
-- Copyright (C) 2011, 2012 Reto Buerki <reet@codelabs.ch>
-- Copyright (C) 2011, 2012 Adrian-Ken Rueegsegger <ken@codelabs.ch>
--
-- This program is free software; you can redistribute it and/or modify it
-- under the terms of the GNU General Public License as published by the
-- Free Software Foundation; either version 2 of the License, or (at your
-- option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
--
-- This program is distributed in the hope that it will be useful, but
-- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for more details.
--
-- As a special exception, if other files instantiate generics from this
-- unit, or you link this unit with other files to produce an
-- executable this unit does not by itself cause the resulting
-- executable to be covered by the GNU General Public License. This
-- exception does not however invalidate any other reasons why the
-- executable file might be covered by the GNU Public License.
--
with Anet.Byte_Swapping;
with Anet.OS;
package body Anet.Sockets.Thin is
package C renames Interfaces.C;
Families : constant array (Family_Type) of C.int
:= (Family_Inet => Constants.Sys.AF_INET,
Family_Inet6 => Constants.Sys.AF_INET6,
Family_Packet => Constants.AF_PACKET,
Family_Unix => Constants.AF_UNIX);
-- Address family mapping.
Levels : constant array (Level_Type) of C.int
:= (Socket_Level => Constants.Sys.SOL_SOCKET);
-- Protocol level mapping.
Options_Bool : constant array (Option_Name_Bool) of C.int
:= (Reuse_Address => Constants.Sys.SO_REUSEADDR,
Broadcast => Constants.Sys.SO_BROADCAST);
-- Mapping for option names with boolean value.
Options_Str : constant array (Option_Name_Str) of C.int
:= (Bind_To_Device => Constants.SO_BINDTODEVICE);
-- Mapping for option names with string value.
Modes : constant array (Mode_Type) of C.int
:= (Stream_Socket => Constants.Sys.SOCK_STREAM,
Datagram_Socket => Constants.Sys.SOCK_DGRAM);
-- Socket mode mapping.
Get_Requests : constant array (Netdev_Request_Name) of C.int
:= (If_Addr => Constants.SIOCGIFADDR,
If_Flags => Constants.SIOCGIFFLAGS,
If_Hwaddr => Constants.SIOCGIFHWADDR,
If_Index => Constants.SIOCGIFINDEX);
-- Currently supported netdevice ioctl get requests.
Set_Requests : constant array (Netdev_Request_Name) of C.int
:= (If_Flags => Constants.SIOCSIFFLAGS,
others => C.int (-1));
-- Currently supported netdevice ioctl set requests.
type Sockaddr_Type is record
Sa_Family : C.unsigned_short;
-- Address family
Sa_Data : C.char_array (1 .. 14) := (others => C.nul);
-- Family-specific data
end record;
pragma Convention (C, Sockaddr_Type);
-- Generic socket address.
type Sockaddr_LL_Type is record
Sa_Family : C.unsigned_short := Constants.AF_PACKET;
-- Address family (always AF_PACKET)
Sa_Protocol : C.unsigned_short := 0;
-- Physical layer protocol
Sa_Ifindex : C.int := 0;
-- Interface number
Sa_Hatype : C.unsigned_short := 0;
-- Header type
Sa_Pkttype : C.unsigned_char := 0;
-- Packet type
Sa_Halen : C.unsigned_char := 0;
-- Length of address
Sa_Addr : Hardware_Addr_Type (1 .. 8) := (others => 0);
-- Physical layer address
end record;
pragma Convention (C, Sockaddr_LL_Type);
-- Device independent physical layer address
type If_Req_Type (Name : Netdev_Request_Name := If_Index) is record
Ifr_Name : C.char_array (1 .. Max_Iface_Name_Len) := (others => C.nul);
case Name is
when If_Addr =>
Ifr_Addr : Sockaddr_Type;
when If_Hwaddr =>
Ifr_Hwaddr : Sockaddr_Type;
when If_Index =>
Ifr_Ifindex : C.int := 0;
when If_Flags =>
Ifr_Flags : C.short := 0;
end case;
end record;
pragma Unchecked_Union (If_Req_Type);
pragma Convention (C, If_Req_Type);
-- Interface request structure (struct ifreq).
function C_Send
(S : C.int;
Buf : System.Address;
Len : C.int;
Flags : C.int)
return C.int;
pragma Import (C, C_Send, "send");
function C_Sendto
(S : C.int;
Buf : System.Address;
Len : C.int;
Flags : C.int;
To : System.Address;
Tolen : C.int)
return C.int;
pragma Import (C, C_Sendto, "sendto");
function C_Bind
(S : C.int;
Name : System.Address;
Namelen : C.int)
return C.int;
pragma Import (C, C_Bind, "bind");
function C_Recvfrom
(S : C.int;
Msg : System.Address;
Len : C.int;
Flags : C.int;
From : System.Address;
Fromlen : not null access C.int)
return C.int;
pragma Import (C, C_Recvfrom, "recvfrom");
function C_Connect
(S : C.int;
Name : System.Address;
Namelen : C.int)
return C.int;
pragma Import (C, C_Connect, "connect");
function To_Sock_Addr (Address : Socket_Addr_Type) return Sockaddr_In_Type;
-- Return inet sock address for given socket address.
function Ioctl_Get
(Socket : Integer;
Request : Netdev_Request_Name;
Iface_Name : Iface_Name_Type)
return If_Req_Type;
-- Execute netdevice ioctl get request on interface with given name. The
-- specified socket must have been created beforehand. The procedure
-- returns the resulting interface request record to the caller.
procedure Ioctl
(Socket : Integer;
Request : C.int;
If_Req : not null access If_Req_Type);
-- Execute netdevice ioctl request on interface with given name and request
-- type. The specified socket must have been created beforehand.
function Query_Iface
(Iface_Name : Iface_Name_Type;
Request : Netdev_Request_Name)
return If_Req_Type;
-- Query interface with given request.
procedure Join_Multicast_Group_V4
(Socket : Integer;
Group : Socket_Addr_Type;
Iface : Iface_Name_Type := "");
-- Join the given IPv4 multicast group on the interface specified by name.
procedure Join_Multicast_Group_V6
(Socket : Integer;
Group : Socket_Addr_Type;
Iface : Iface_Name_Type := "");
-- Join the given IPv6 multicast group on the interface specified by name.
-------------------------------------------------------------------------
procedure Accept_Socket
(Socket : Integer;
Sockaddr : System.Address;
Sockaddr_Len : Integer;
New_Socket : out Integer)
is
use type C.int;
function C_Accept
(S : C.int;
Name : System.Address;
Namelen : not null access C.int)
return C.int;
pragma Import (C, C_Accept, "accept");
Res : C.int;
Len : aliased C.int := C.int (Sockaddr_Len);
begin
Res := C_Accept (S => C.int (Socket),
Name => Sockaddr,
Namelen => Len'Access);
if Res = C_Failure then
raise Socket_Error with "Unable to accept connection on socket - "
& Get_Errno_String;
end if;
New_Socket := Integer (Res);
end Accept_Socket;
-------------------------------------------------------------------------
procedure Bind_Socket
(Socket : Integer;
Address : Socket_Addr_Type)
is
use type C.int;
Res : C.int;
Value : constant Sockaddr_In_Type := To_Sock_Addr (Address => Address);
begin
Res := C_Bind (S => C.int (Socket),
Name => Value'Address,
Namelen => Value'Size / 8);
if Res = C_Failure then
raise Socket_Error with "Unable to bind socket to "
& To_String (Address => Address) & " - " & Get_Errno_String;
end if;
end Bind_Socket;
-------------------------------------------------------------------------
procedure Bind_Socket
(Socket : Integer;
Iface : Iface_Name_Type)
is
use type C.int;
Res : C.int;
Value : Sockaddr_LL_Type;
begin
Value.Sa_Protocol := C.unsigned_short
(Byte_Swapping.Host_To_Network
(Input => Double_Byte (Constants.ETH_P_IP)));
Value.Sa_Ifindex := C.int (Get_Iface_Index (Name => Iface));
Res := C_Bind (S => C.int (Socket),
Name => Value'Address,
Namelen => Value'Size / 8);
if Res = C_Failure then
raise Socket_Error with "Unable to bind packet socket to interface "
& String (Iface) & " - " & Get_Errno_String;
end if;
end Bind_Socket;
-------------------------------------------------------------------------
procedure Bind_Unix_Socket
(Socket : Integer;
Path : Unix_Path_Type)
is
use type C.int;
Res : C.int;
C_Path : constant C.char_array := C.To_C (String (Path));
Value : Sockaddr_Un_Type;
begin
OS.Delete_File (Filename => String (Path));
Value.Pathname (1 .. C_Path'Length) := C_Path;
Res := C_Bind (S => C.int (Socket),
Name => Value'Address,
Namelen => Value'Size / 8);
if Res = C_Failure then
raise Socket_Error with "Unable to bind unix socket to path "
& String (Path) & " - " & Get_Errno_String;
end if;
end Bind_Unix_Socket;
-------------------------------------------------------------------------
procedure Close_Socket (Socket : Integer)
is
use type C.int;
function C_Close (Fd : C.int) return C.int;
pragma Import (C, C_Close, "close");
Res : C.int;
begin
Res := C_Close (C.int (Socket));
if Res = C_Failure then
raise Socket_Error with "Unable to close socket: " & Get_Errno_String;
end if;
end Close_Socket;
-------------------------------------------------------------------------
procedure Connect_Socket
(Socket : Integer;
Dst : Socket_Addr_Type)
is
use type C.int;
Res : C.int;
Sin : constant Sockaddr_In_Type := To_Sock_Addr (Address => Dst);
begin
Res := C_Connect (S => C.int (Socket),
Name => Sin'Address,
Namelen => Sin'Size / 8);
if Res = C_Failure then
raise Socket_Error with "Unable to connect socket to address "
& To_String (Dst) & " - " & Get_Errno_String;
end if;
end Connect_Socket;
-------------------------------------------------------------------------
procedure Connect_Socket
(Socket : Integer;
Path : Unix_Path_Type)
is
use type C.int;
Res : C.int;
C_Path : constant C.char_array := C.To_C (String (Path));
Value : Sockaddr_Un_Type;
begin
Value.Pathname (1 .. C_Path'Length) := C_Path;
Res := C_Connect (S => C.int (Socket),
Name => Value'Address,
Namelen => Value'Size / 8);
if Res = C_Failure then
raise Socket_Error with "Unable to connect unix socket to path "
& String (Path) & " - " & Get_Errno_String;
end if;
end Connect_Socket;
-------------------------------------------------------------------------
procedure Create_Socket
(Socket : out Integer;
Family : Family_Type := Family_Inet;
Mode : Mode_Type := Datagram_Socket)
is
use type Interfaces.C.int;
function C_Socket
(Domain : C.int;
Typ : C.int;
Protocol : C.int)
return C.int;
pragma Import (C, C_Socket, "socket");
Res : C.int;
Proto : C.int := 0;
begin
if Family = Family_Packet then
Proto := C.int (Byte_Swapping.Host_To_Network
(Input => Double_Byte (Constants.ETH_P_IP)));
end if;
Res := C_Socket (Domain => Families (Family),
Typ => Modes (Mode),
Protocol => Proto);
if Res = C_Failure then
raise Socket_Error with "Unable to create socket (" & Family'Img & "/"
& Mode'Img & "): " & Get_Errno_String;
end if;
Socket := Integer (Res);
end Create_Socket;
-------------------------------------------------------------------------
function Get_Iface_Index (Name : Iface_Name_Type) return Positive
is
Req : constant If_Req_Type := Query_Iface
(Iface_Name => Name,
Request => If_Index);
begin
return Positive (Req.Ifr_Ifindex);
end Get_Iface_Index;
-------------------------------------------------------------------------
function Get_Iface_IP (Name : Iface_Name_Type) return IPv4_Addr_Type
is
Req : constant If_Req_Type := Query_Iface
(Iface_Name => Name,
Request => If_Addr);
-- The actual IP address is at range 3 .. 6. The first two bytes of the
-- result are the sin_port value.
Offset : constant := 2;
begin
return Result : IPv4_Addr_Type do
for B in Result'Range loop
Result (B) := Character'Pos
(C.To_Ada
(Req.Ifr_Addr.Sa_Data
(C.size_t (B + Offset))));
end loop;
end return;
end Get_Iface_IP;
-------------------------------------------------------------------------
function Get_Iface_Mac (Name : Iface_Name_Type) return Hardware_Addr_Type
is
Req : constant If_Req_Type := Query_Iface
(Iface_Name => Name,
Request => If_Hwaddr);
begin
return Result : Hardware_Addr_Type (1 .. 6) do
for B in Result'Range loop
Result (B) := Character'Pos
(C.To_Ada
(Req.Ifr_Hwaddr.Sa_Data
(C.size_t (B))));
end loop;
end return;
end Get_Iface_Mac;
-------------------------------------------------------------------------
procedure Get_Socket_Info
(Sock_Addr : Sockaddr_In_Type;
Source : out Socket_Addr_Type)
is
use type Interfaces.C.unsigned_short;
begin
if Sock_Addr.Sin_Family = Constants.Sys.AF_INET then
Source.Addr_V4 := Sock_Addr.Sin_Addr;
Source.Port_V4 := Byte_Swapping.Host_To_Network
(Input => Port_Type (Sock_Addr.Sin_Port));
elsif Sock_Addr.Sin_Family = Constants.Sys.AF_INET6 then
Source.Addr_V6 := Sock_Addr.Sin6_Addr;
Source.Port_V6 := Byte_Swapping.Host_To_Network
(Input => Port_Type (Sock_Addr.Sin_Port));
else
raise Socket_Error with "Invalid source address family";
end if;
end Get_Socket_Info;
-------------------------------------------------------------------------
procedure Ioctl
(Socket : Integer;
Request : C.int;
If_Req : not null access If_Req_Type)
is
use type C.int;
function C_Ioctl
(S : C.int;
Req : C.int;
Arg : access If_Req_Type)
return C.int;
pragma Import (C, C_Ioctl, "ioctl");
Ctl_Ret : C.int;
begin
Ctl_Ret := C_Ioctl
(S => C.int (Socket),
Req => Request,
Arg => If_Req);
if Ctl_Ret = C_Failure then
raise Socket_Error with "Ioctl (" & Request'Img
& ") failed on interface '" & C.To_Ada (If_Req.Ifr_Name) & "': "
& Get_Errno_String;
end if;
end Ioctl;
-------------------------------------------------------------------------
function Ioctl_Get
(Socket : Integer;
Request : Netdev_Request_Name;
Iface_Name : Iface_Name_Type)
return If_Req_Type
is
C_Name : constant C.char_array := C.To_C (String (Iface_Name));
If_Req : aliased If_Req_Type (Name => Request);
begin
If_Req.Ifr_Name (1 .. C_Name'Length) := C_Name;
Ioctl (Socket => Socket,
Request => Get_Requests (Request),
If_Req => If_Req'Access);
return If_Req;
end Ioctl_Get;
-------------------------------------------------------------------------
function Is_Iface_Up (Name : Iface_Name_Type) return Boolean
is
use type Interfaces.C.short;
Req : constant If_Req_Type := Query_Iface
(Iface_Name => Name,
Request => If_Flags);
begin
return (Req.Ifr_Flags mod 2) = Constants.IFF_UP;
end Is_Iface_Up;
-------------------------------------------------------------------------
procedure Join_Multicast_Group
(Socket : Integer;
Group : Socket_Addr_Type;
Iface : Iface_Name_Type := "")
is
begin
if Group.Family = Family_Inet then
Join_Multicast_Group_V4 (Socket => Socket,
Group => Group,
Iface => Iface);
elsif Group.Family = Family_Inet6 then
Join_Multicast_Group_V6 (Socket => Socket,
Group => Group,
Iface => Iface);
end if;
end Join_Multicast_Group;
-------------------------------------------------------------------------
procedure Join_Multicast_Group_V4
(Socket : Integer;
Group : Socket_Addr_Type;
Iface : Iface_Name_Type := "")
is
use type Interfaces.C.int;
type IP_Mreq_Type is record
Imr_Multiaddr : IPv4_Addr_Type;
Imr_Interface : C.unsigned;
end record;
pragma Convention (C, IP_Mreq_Type);
-- struct ip_mreq (netinet/in.h).
Mreq : IP_Mreq_Type
:= (Imr_Multiaddr => Group.Addr_V4,
Imr_Interface => 0);
Res : C.int;
begin
if Iface'Length /= 0 then
Mreq.Imr_Interface := C.unsigned (Get_Iface_Index (Name => Iface));
end if;
Res := C_Setsockopt
(S => C.int (Socket),
Level => Constants.Sys.IPPROTO_IP,
Optname => Constants.Sys.IP_ADD_MEMBERSHIP,
Optval => Mreq'Address,
Optlen => Mreq'Size / 8);
if Res = C_Failure then
raise Socket_Error with "Unable to join multicast group "
& To_String (Address => Group) & ": " & Get_Errno_String;
end if;
end Join_Multicast_Group_V4;
-------------------------------------------------------------------------
procedure Join_Multicast_Group_V6
(Socket : Integer;
Group : Socket_Addr_Type;
Iface : Iface_Name_Type := "")
is
use type Interfaces.C.int;
type IPv6_Mreq_Type is record
IPv6mr_Multiaddr : IPv6_Addr_Type;
IPv6mr_Interface : C.unsigned;
end record;
pragma Convention (C, IPv6_Mreq_Type);
-- struct ipv6_mreq (netinet/in.h).
Mreq : IPv6_Mreq_Type
:= (IPv6mr_Multiaddr => Group.Addr_V6,
IPv6mr_Interface => 0);
Res : C.int;
begin
if Iface'Length /= 0 then
Mreq.IPv6mr_Interface := C.unsigned (Get_Iface_Index (Name => Iface));
end if;
Res := C_Setsockopt
(S => C.int (Socket),
Level => Constants.IPPROTO_IPV6,
Optname => Constants.IPV6_ADD_MEMBERSHIP,
Optval => Mreq'Address,
Optlen => Mreq'Size / 8);
if Res = C_Failure then
raise Socket_Error with "Unable to join multicast group "
& To_String (Address => Group) & ": " & Get_Errno_String;
end if;
end Join_Multicast_Group_V6;
-------------------------------------------------------------------------
procedure Listen_Socket
(Socket : Integer;
Backlog : Positive := 1)
is
use type Interfaces.C.int;
function C_Listen
(Socket : C.int;
Backlog : C.int)
return C.int;
pragma Import (C, C_Listen, "listen");
Res : C.int;
begin
Res := C_Listen (Socket => C.int (Socket),
Backlog => C.int (Backlog));
if Res = C_Failure then
raise Socket_Error with "Unable to listen on socket with backlog"
& Backlog'Img & " - " & Get_Errno_String;
end if;
end Listen_Socket;
-------------------------------------------------------------------------
function Query_Iface
(Iface_Name : Iface_Name_Type;
Request : Netdev_Request_Name)
return If_Req_Type
is
Req : If_Req_Type;
Sock : Integer := -1;
begin
Create_Socket (Socket => Sock);
begin
Req := Ioctl_Get (Socket => Sock,
Request => Request,
Iface_Name => Iface_Name);
exception
when Socket_Error =>
Close_Socket (Socket => Sock);
raise;
end;
Close_Socket (Socket => Sock);
return Req;
end Query_Iface;
-------------------------------------------------------------------------
procedure Receive_Socket
(Socket : Integer;
Data : out Ada.Streams.Stream_Element_Array;
Last : out Ada.Streams.Stream_Element_Offset;
Source : out Socket_Addr_Type)
is
use type Interfaces.C.int;
use type Ada.Streams.Stream_Element_Offset;
Res : C.int;
Sin : Sockaddr_In_Type;
Len : aliased C.int := Sin'Size / 8;
begin
Res := C_Recvfrom (S => C.int (Socket),
Msg => Data'Address,
Len => Data'Length,
Flags => 0,
From => Sin'Address,
Fromlen => Len'Access);
if Res = C_Failure then
raise Socket_Error with "Error receiving data: " & Get_Errno_String;
end if;
Last := Data'First + Ada.Streams.Stream_Element_Offset (Res - 1);
if Len /= 0 then
Get_Socket_Info (Sock_Addr => Sin,
Source => Source);
else
Source := No_Addr;
end if;
end Receive_Socket;
-------------------------------------------------------------------------
procedure Receive_Socket
(Socket : Integer;
Data : out Ada.Streams.Stream_Element_Array;
Last : out Ada.Streams.Stream_Element_Offset;
Src_HW_Addr : out Hardware_Addr_Type)
is
use type Interfaces.C.int;
use type Ada.Streams.Stream_Element_Offset;
Res : C.int;
Saddr : Sockaddr_LL_Type;
Len : aliased C.int := Saddr'Size / 8;
begin
Res := C_Recvfrom (S => C.int (Socket),
Msg => Data'Address,
Len => Data'Length,
Flags => 0,
From => Saddr'Address,
Fromlen => Len'Access);
if Res = C_Failure then
raise Socket_Error with "Error receiving packet data: "
& Get_Errno_String;
end if;
Src_HW_Addr := Saddr.Sa_Addr (Saddr.Sa_Addr'First .. Src_HW_Addr'Length);
Last := Data'First + Ada.Streams.Stream_Element_Offset (Res - 1);
end Receive_Socket;
-------------------------------------------------------------------------
procedure Receive_Socket
(Socket : Integer;
Data : out Ada.Streams.Stream_Element_Array;
Last : out Ada.Streams.Stream_Element_Offset)
is
use type Interfaces.C.int;
use type Ada.Streams.Stream_Element_Offset;
function C_Recv
(S : C.int;
Msg : System.Address;
Len : C.int;
Flags : C.int)
return C.int;
pragma Import (C, C_Recv, "recv");
Res : C.int;
begin
Res := C_Recv (S => C.int (Socket),
Msg => Data'Address,
Len => Data'Length,
Flags => 0);
if Res = C_Failure then
raise Socket_Error with "Error receiving packet data: "
& Get_Errno_String;
end if;
Last := Data'First + Ada.Streams.Stream_Element_Offset (Res - 1);
end Receive_Socket;
-------------------------------------------------------------------------
procedure Send_Socket
(Socket : Integer;
Data : Ada.Streams.Stream_Element_Array;
Last : out Ada.Streams.Stream_Element_Offset;
Dst : Socket_Addr_Type)
is
use type Interfaces.C.int;
use type Ada.Streams.Stream_Element_Offset;
Res : C.int;
Sin : constant Sockaddr_In_Type := To_Sock_Addr (Address => Dst);
begin
Res := C_Sendto (S => C.int (Socket),
Buf => Data'Address,
Len => Data'Length,
Flags => 0,
To => Sin'Address,
Tolen => Sin'Size / 8);
if Res = C_Failure then
raise Socket_Error with "Error sending data to "
& To_String (Address => Dst) & " - " & Get_Errno_String;
end if;
Last := Data'First + Ada.Streams.Stream_Element_Offset (Res - 1);
end Send_Socket;
-------------------------------------------------------------------------
procedure Send_Socket
(Socket : Integer;
Data : Ada.Streams.Stream_Element_Array;
Last : out Ada.Streams.Stream_Element_Offset;
To : Hardware_Addr_Type;
Iface : Iface_Name_Type)
is
use type C.int;
use type Ada.Streams.Stream_Element_Offset;
Res : C.int;
LL_Dest : Sockaddr_LL_Type;
begin
LL_Dest.Sa_Ifindex := C.int (Get_Iface_Index (Name => Iface));
LL_Dest.Sa_Halen := To'Length;
LL_Dest.Sa_Protocol := C.unsigned_short
(Byte_Swapping.Host_To_Network
(Input => Double_Byte (Constants.ETH_P_IP)));
LL_Dest.Sa_Addr (1 .. To'Length) := To;
Res := C_Sendto (S => C.int (Socket),
Buf => Data'Address,
Len => Data'Length,
Flags => 0,
To => LL_Dest'Address,
Tolen => LL_Dest'Size / 8);
if Res = C_Failure then
raise Socket_Error with "Unable to send packet data on interface "
& String (Iface) & " to " & To_String (Address => To)
& " - " & Get_Errno_String;
end if;
Last := Data'First + Ada.Streams.Stream_Element_Offset (Res - 1);
end Send_Socket;
-------------------------------------------------------------------------
procedure Send_Socket
(Socket : Integer;
Data : Ada.Streams.Stream_Element_Array;
Last : out Ada.Streams.Stream_Element_Offset)
is
use type C.int;
use type Ada.Streams.Stream_Element_Offset;
Res : C.int;
begin
Res := C_Send (S => C.int (Socket),
Buf => Data'Address,
Len => Data'Length,
Flags => 0);
if Res = C_Failure then
raise Socket_Error with "Unable to send data on unix socket"
& " - " & Get_Errno_String;
end if;
Last := Data'First + Ada.Streams.Stream_Element_Offset (Res - 1);
end Send_Socket;
-------------------------------------------------------------------------
procedure Set_Iface_State
(Name : Iface_Name_Type;
State : Boolean)
is
Sock : Integer := -1;
begin
Create_Socket (Socket => Sock);
declare
C_Name : constant C.char_array := C.To_C (String (Name));
Req : aliased If_Req_Type (Name => If_Flags);
begin
Req.Ifr_Name (1 .. C_Name'Length) := C_Name;
if State then
Req.Ifr_Flags := Constants.IFF_UP;
else
Req.Ifr_Flags := 0;
end if;
Ioctl (Socket => Sock,
Request => Set_Requests (If_Flags),
If_Req => Req'Access);
exception
when Socket_Error =>
Close_Socket (Socket => Sock);
raise;
end;
Close_Socket (Socket => Sock);
end Set_Iface_State;
-------------------------------------------------------------------------
procedure Set_Socket_Option
(Socket : Integer;
Level : Level_Type := Socket_Level;
Option : Option_Name_Bool;
Value : Boolean)
is
use type Interfaces.C.int;
Val : C.int := C.int (Boolean'Pos (Value));
Res : C.int;
begin
Res := C_Setsockopt
(S => C.int (Socket),
Level => Levels (Level),
Optname => Options_Bool (Option),
Optval => Val'Address,
Optlen => Val'Size / 8);
if Res = C_Failure then
raise Socket_Error with "Unable set socket option " & Option'Img
& " to " & Value'Img & ": " & Get_Errno_String;
end if;
end Set_Socket_Option;
-------------------------------------------------------------------------
procedure Set_Socket_Option
(Socket : Integer;
Level : Level_Type := Socket_Level;
Option : Option_Name_Str;
Value : String)
is
use type Interfaces.C.int;
Val : constant C.char_array := C.To_C (Value);
Res : C.int;
begin
Res := C_Setsockopt
(S => C.int (Socket),
Level => Levels (Level),
Optname => Options_Str (Option),
Optval => Val'Address,
Optlen => Val'Size / 8);
if Res = C_Failure then
raise Socket_Error with "Unable set socket option " & Option'Img
& " to '" & Value & "': " & Get_Errno_String;
end if;
end Set_Socket_Option;
-------------------------------------------------------------------------
function To_Sock_Addr (Address : Socket_Addr_Type) return Sockaddr_In_Type
is
begin
case Address.Family is
when Family_Inet =>
return
(Family => Family_Inet,
Sin_Family => Constants.Sys.AF_INET,
Sin_Port => C.unsigned_short
(Byte_Swapping.Host_To_Network (Input => Address.Port_V4)),
Sin_Addr => Address.Addr_V4,
Sin_Zero => <>);
when Family_Inet6 =>
return
(Family => Family_Inet6,
Sin_Family => Constants.Sys.AF_INET6,
Sin_Port => C.unsigned_short
(Byte_Swapping.Host_To_Network (Input => Address.Port_V6)),
Sin6_Addr => Address.Addr_V6,
others => 0);
when others =>
raise Socket_Error with "Unable to convert '" & To_String
(Address => Address) & "' to IPv4 or IPv6 socket address";
end case;
end To_Sock_Addr;
end Anet.Sockets.Thin;
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