/usr/share/ada/adainclude/anet/anet-os.adb is in libanet0.3.1-dev 0.3.1-1ubuntu1.
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 Ada.Directories;
with Ada.Streams.Stream_IO;
with Ada.IO_Exceptions;
with Interfaces.C;
with Interfaces.C_Streams;
with GNAT.OS_Lib;
with Anet.Constants;
package body Anet.OS is
-------------------------------------------------------------------------
procedure Delete_File
(Filename : String;
Ignore_Missing : Boolean := True)
is
use Interfaces;
use type C.int;
Res : C.int;
C_Path : constant C.char_array := C.To_C (Filename);
begin
Res := C.int (C_Streams.unlink (filename => C_Path'Address));
if Res = C_Failure and then
(GNAT.OS_Lib.Errno /= Constants.Sys.ENOENT or else not Ignore_Missing)
then
raise IO_Error with "Unable to delete file '" & Filename & "' - "
& Get_Errno_String;
end if;
end Delete_File;
-------------------------------------------------------------------------
procedure Execute (Command : String)
is
Success : Boolean := False;
Args : GNAT.OS_Lib.Argument_List (1 .. 2);
begin
Args (1) := new String'("-c");
Args (2) := new String'(Command);
GNAT.OS_Lib.Spawn (Program_Name => "/bin/sh",
Args => Args,
Success => Success);
for A in Args'Range loop
GNAT.OS_Lib.Free (Args (A));
end loop;
if not Success then
raise Command_Failed with
"Execution of command '" & Command & "' failed";
end if;
end Execute;
-------------------------------------------------------------------------
function Read_File
(Filename : String)
return Ada.Streams.Stream_Element_Array
is
use Ada.Streams;
Data_File : Stream_IO.File_Type;
begin
begin
Stream_IO.Open (File => Data_File,
Mode => Stream_IO.In_File,
Name => Filename);
exception
when Ada.IO_Exceptions.Name_Error =>
raise IO_Error with "Could not open '" & Filename
& "', file does not exist";
end;
declare
Len : Stream_Element_Offset;
Data : Stream_Element_Array
(1 .. Stream_Element_Offset
(Ada.Directories.Size (Name => Filename)));
begin
Stream_IO.Read (File => Data_File,
Item => Data,
Last => Len);
Stream_IO.Close (File => Data_File);
if Len /= Data'Length then
raise IO_Error with "Incomplete read of file '" & Filename & "'";
end if;
return Data;
exception
when others =>
Stream_IO.Close (File => Data_File);
raise IO_Error with "Unable to read data from file '"
& Filename & "'";
end;
end Read_File;
end Anet.OS;
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