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{
This file is part of the Free Pascal run time library.
Copyright (c) 2016 by Free Pascal development team
Low level directory functions for Atari TOS
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
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.
**********************************************************************}
{*****************************************************************************
Directory Handling
*****************************************************************************}
procedure do_mkdir(const s : rawbytestring);
var
dosResult: longint;
ps: rawbytestring;
begin
ps:=s;
DoDirSeparators(ps);
dosResult:=gemdos_dcreate(pchar(ps));
if dosResult < 0 then
Error2InOutRes(dosResult);
end;
procedure do_rmdir(const s : rawbytestring);
var
dosResult: longint;
ps: rawbytestring;
begin
ps:=s;
DoDirSeparators(ps);
if ps='.' then
begin
InOutRes:=16;
exit;
end;
dosResult:=gemdos_ddelete(pchar(ps));
if dosResult < 0 then
Error2InOutRes(dosResult);
end;
procedure do_ChDir(const s: rawbytestring);
var
ps: rawbytestring;
len: longint;
drives: dword;
curdrive: word;
newdrive: word;
dosResult: longint;
begin
ps:=s;
DoDirSeparators(ps);
len:=Length(ps);
{ first, handle drive changes }
if (len>=2) and (ps[2]=':') then
begin
curdrive:=gemdos_dgetdrv;
newdrive:=(ord(ps[1]) and (not 32))-ord('A');
if (newdrive <> curdrive) then
begin
{ verify if the drive we have to set actually exist.
not doing so may corrupt TOS internal structures,
according to docs. (KB) }
drives:=gemdos_dsetdrv(curdrive);
if (drives and (1 shl newdrive)) = 0 then
begin
InOutRes:=15;
exit;
end;
gemdos_dsetdrv(newdrive);
end;
if len=2 then
exit;
end;
{ do normal setpath }
dosResult:=gemdos_dsetpath(pchar(ps));
if dosResult < 0 then
Error2InOutRes(dosResult);
end;
procedure do_GetDir (DriveNr: byte; var Dir: RawByteString);
var
dosResult: longint;
pathbuf: array[0..259] of char;
begin
Dir := '';
dosResult:=gemdos_dgetpath(@pathbuf[2],DriveNr);
if dosResult < 0 then
begin
Error2InOutRes(dosResult);
exit;
end;
if DriveNr = 0 then
DriveNr := gemdos_dgetdrv + 1;
{ return a full path, including drive }
pathbuf[0]:=char(ord('A') + DriveNr - 1);
pathbuf[1]:=DriveSeparator;
Dir:=pathbuf;
SetCodePage(Dir,DefaultSystemCodePage,false);
end;
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