--
-- Copyright (C) 2018-2019, AdaCore
--
-- SPDX-License-Identifier: Apache-2.0
--
with Ada.Strings.UTF_Encoding.Wide_Strings;
with Interfaces.C;
with Spawn.Windows_API;
separate (Spawn.Environments)
function Search_In_Path
(File : UTF_8_String;
Path : UTF_8_String) return UTF_8_String
is
use type Spawn.Windows_API.DWORD;
Raw_Path : Interfaces.C.wchar_array :=
Interfaces.C.To_C
(Ada.Strings.UTF_Encoding.Wide_Strings.Decode (Path));
Raw_File : Interfaces.C.wchar_array :=
Interfaces.C.To_C
(Ada.Strings.UTF_Encoding.Wide_Strings.Decode (File));
Raw_Exe : Interfaces.C.wchar_array := Interfaces.C.To_C (".exe");
Buffer : Interfaces.C.wchar_array (1 .. Spawn.Windows_API.MAX_PATH);
Length : constant Spawn.Windows_API.DWORD :=
Spawn.Windows_API.SearchPath
(lpPath => Raw_Path (Raw_Path'First)'Unchecked_Access,
lpFileName => Raw_File (Raw_File'First)'Unchecked_Access,
lpExtension => Raw_Exe (Raw_Exe'First)'Unchecked_Access,
nBufferLength => Buffer'Length,
lpBuffer => Buffer (Buffer'First)'Unchecked_Access,
lpFilePart => null);
begin
if Length = 0 or else Length > Buffer'Length then
return "";
else
return Ada.Strings.UTF_Encoding.Wide_Strings.Encode
(Interfaces.C.To_Ada
(Buffer (1 .. Interfaces.C.size_t (Length)),
Trim_Nul => False));
end if;
end Search_In_Path;