mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-05-17 16:22:35 +02:00
615 lines
14 KiB
PHP
615 lines
14 KiB
PHP
{
|
|
$Id$
|
|
This file is part of the Free Pascal run time library.
|
|
Copyright (c) 1999-2000 by the Free Pascal development team
|
|
|
|
File utility calls
|
|
|
|
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.
|
|
|
|
**********************************************************************}
|
|
|
|
|
|
{This is the correct way to call external assembler procedures.}
|
|
procedure syscall;external name '___SYSCALL';
|
|
|
|
|
|
const
|
|
ofRead = $0000; {Open for reading}
|
|
ofWrite = $0001; {Open for writing}
|
|
ofReadWrite = $0002; {Open for reading/writing}
|
|
faCreateNew = $00010000; {Create if file does not exist}
|
|
faOpenReplace = $00040000; {Truncate if file exists}
|
|
faCreate = $00050000; {Create if file does not exist, truncate otherwise}
|
|
|
|
{$ASMMODE INTEL}
|
|
function FileOpen (const FileName: string; Mode: integer): longint;
|
|
{$IFOPT H+}
|
|
assembler;
|
|
{$ELSE}
|
|
var FN: string;
|
|
begin
|
|
FN := FileName + #0;
|
|
(* DenyAll if sharing not specified. *)
|
|
if Mode and 112 = 0 then
|
|
Mode := Mode or 16;
|
|
{$ENDIF}
|
|
asm
|
|
mov eax, 7F2Bh
|
|
mov ecx, Mode
|
|
{$IFOPT H+}
|
|
mov edx, FileName
|
|
{$ELSE}
|
|
lea edx, FN
|
|
inc edx
|
|
{$ENDIF}
|
|
call syscall
|
|
{$IFOPT H-}
|
|
mov [ebp - 4], eax
|
|
end;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
|
|
function FileCreate (const FileName: string): longint;
|
|
{$IFOPT H+}
|
|
assembler;
|
|
{$ELSE}
|
|
var FN: string;
|
|
begin
|
|
FN := FileName + #0;
|
|
(* DenyAll if sharing not specified. *)
|
|
if Mode and 112 = 0 then
|
|
Mode := Mode or 16;
|
|
{$ENDIF}
|
|
asm
|
|
mov eax, 7F2Bh
|
|
mov ecx, ofReadWrite or faCreate
|
|
{$IFOPT H+}
|
|
mov edx, FileName
|
|
{$ELSE}
|
|
lea edx, FN
|
|
inc edx
|
|
{$ENDIF}
|
|
call syscall
|
|
{$IFOPT H-}
|
|
mov [ebp - 4], eax
|
|
end;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
|
|
function FileRead (Handle: longint; var Buffer; Count: longint): longint;
|
|
assembler;
|
|
asm
|
|
mov eax, 3F00h
|
|
mov ebx, Handle
|
|
mov ecx, Count
|
|
mov edx, Buffer
|
|
call syscall
|
|
jnc @FReadEnd
|
|
mov eax, -1
|
|
@FReadEnd:
|
|
end;
|
|
|
|
|
|
function FileWrite (Handle: longint; const Buffer; Count: longint): longint;
|
|
assembler;
|
|
asm
|
|
mov eax, 4000h
|
|
mov ebx, Handle
|
|
mov ecx, Count
|
|
mov edx, Buffer
|
|
call syscall
|
|
jnc @FWriteEnd
|
|
mov eax, -1
|
|
@FWriteEnd:
|
|
end;
|
|
|
|
|
|
function FileSeek (Handle, FOffset, Origin: longint): longint; assembler;
|
|
asm
|
|
mov eax, Origin
|
|
mov ah, 42h
|
|
mov ebx, Handle
|
|
mov edx, FOffset
|
|
call syscall
|
|
jnc @FSeekEnd
|
|
mov eax, -1
|
|
@FSeekEnd:
|
|
end;
|
|
|
|
|
|
procedure FileClose (Handle: longint);
|
|
begin
|
|
if (Handle <= 4) or (os_mode = osOS2) and (Handle <= 2) then
|
|
asm
|
|
mov eax, 3E00h
|
|
mov ebx, Handle
|
|
call syscall
|
|
end;
|
|
end;
|
|
|
|
|
|
function FileTruncate (Handle, Size: longint): boolean; assembler;
|
|
asm
|
|
mov eax, 7F25h
|
|
mov ebx, Handle
|
|
mov edx, Size
|
|
call syscall
|
|
jc @FTruncEnd
|
|
mov eax, 4202h
|
|
mov ebx, Handle
|
|
mov edx, 0
|
|
call syscall
|
|
mov eax, 0
|
|
jnc @FTruncEnd
|
|
dec eax
|
|
@FTruncEnd:
|
|
end;
|
|
|
|
|
|
function FileAge (const FileName: string): longint;
|
|
var Handle: longint;
|
|
begin
|
|
Handle := FileOpen (FileName, 0);
|
|
if Handle <> -1 then
|
|
begin
|
|
Result := FileGetDate (Handle);
|
|
FileClose (Handle);
|
|
end
|
|
else
|
|
Result := -1;
|
|
end;
|
|
|
|
|
|
function FileExists (const FileName: string): boolean;
|
|
{$IFOPT H+}
|
|
assembler;
|
|
{$ELSE}
|
|
var FN: string;
|
|
begin
|
|
FN := FileName + #0;
|
|
{$ENDIF}
|
|
asm
|
|
mov ax, 4300h
|
|
{$IFOPT H+}
|
|
mov edx, FileName
|
|
{$ELSE}
|
|
lea edx, FN
|
|
inc edx
|
|
{$ENDIF}
|
|
call syscall
|
|
mov eax, 0
|
|
jc @FExistsEnd
|
|
test cx, 18h
|
|
jnz @FExistsEnd
|
|
inc eax
|
|
@FExistsEnd:
|
|
{$IFOPT H-}
|
|
end;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
|
|
type TRec = record
|
|
T, D: word;
|
|
end;
|
|
PSearchRec = ^SearchRec;
|
|
|
|
function FindFirst (const Path: string; Attr: longint; var Rslt: TSearchRec): longint;
|
|
|
|
var SR: PSearchRec;
|
|
FStat: PFileFindBuf3;
|
|
Count: longint;
|
|
Err: longint;
|
|
|
|
begin
|
|
if os_mode = osOS2 then
|
|
begin
|
|
New (FStat);
|
|
Rslt.FindHandle := $FFFFFFFF;
|
|
Count := 1;
|
|
Err := DosFindFirst (Path, Rslt.FindHandle, Attr, FStat,
|
|
SizeOf (FStat^), Count, ilStandard);
|
|
if (Err = 0) and (Count = 0) then Err := 18;
|
|
FindFirst := -Err;
|
|
if Err = 0 then
|
|
begin
|
|
Rslt.Name := FStat^.Name;
|
|
Rslt.Size := FStat^.FileSize;
|
|
Rslt.Attr := FStat^.AttrFile;
|
|
Rslt.ExcludeAttr := 0;
|
|
TRec (Rslt.Time).T := FStat^.TimeLastWrite;
|
|
TRec (Rslt.Time).D := FStat^.DateLastWrite;
|
|
end;
|
|
Dispose (FStat);
|
|
end
|
|
else
|
|
begin
|
|
GetMem (SR, SizeOf (SearchRec));
|
|
Rslt.FindHandle := longint(SR);
|
|
DOS.FindFirst (Path, Attr, SR^);
|
|
FindFirst := -DosError;
|
|
if DosError = 0 then
|
|
begin
|
|
Rslt.Time := SR^.Time;
|
|
Rslt.Size := SR^.Size;
|
|
Rslt.Attr := SR^.Attr;
|
|
Rslt.ExcludeAttr := 0;
|
|
Rslt.Name := SR^.Name;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
function FindNext (var Rslt: TSearchRec): longint;
|
|
|
|
var SR: PSearchRec;
|
|
FStat: PFileFindBuf3;
|
|
Count: longint;
|
|
Err: longint;
|
|
|
|
begin
|
|
if os_mode = osOS2 then
|
|
begin
|
|
New (FStat);
|
|
Count := 1;
|
|
Err := DosFindNext (Rslt.FindHandle, FStat, SizeOf (FStat), Count);
|
|
if (Err = 0) and (Count = 0) then Err := 18;
|
|
FindNext := -Err;
|
|
if Err = 0 then
|
|
begin
|
|
Rslt.Name := FStat^.Name;
|
|
Rslt.Size := FStat^.FileSize;
|
|
Rslt.Attr := FStat^.AttrFile;
|
|
Rslt.ExcludeAttr := 0;
|
|
TRec (Rslt.Time).T := FStat^.TimeLastWrite;
|
|
TRec (Rslt.Time).D := FStat^.DateLastWrite;
|
|
end;
|
|
Dispose (FStat);
|
|
end
|
|
else
|
|
begin
|
|
SR := PSearchRec (Rslt.FindHandle);
|
|
if SR <> nil then
|
|
begin
|
|
DOS.FindNext (SR^);
|
|
FindNext := -DosError;
|
|
if DosError = 0 then
|
|
begin
|
|
Rslt.Time := SR^.Time;
|
|
Rslt.Size := SR^.Size;
|
|
Rslt.Attr := SR^.Attr;
|
|
Rslt.ExcludeAttr := 0;
|
|
Rslt.Name := SR^.Name;
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure FindClose (var F: TSearchrec);
|
|
|
|
var SR: PSearchRec;
|
|
|
|
begin
|
|
if os_mode = osOS2 then
|
|
begin
|
|
DosFindClose (F.FindHandle);
|
|
end
|
|
else
|
|
begin
|
|
DOS.FindClose (SR^);
|
|
FreeMem (SR, SizeOf (SearchRec));
|
|
end;
|
|
F.FindHandle := 0;
|
|
end;
|
|
|
|
|
|
function FileGetDate (Handle: longint): longint; assembler;
|
|
asm
|
|
mov ax, 5700h
|
|
mov ebx, Handle
|
|
call syscall
|
|
mov eax, -1
|
|
jc @FGetDateEnd
|
|
mov ax, dx
|
|
shld eax, ecx, 16
|
|
@FGetDateEnd:
|
|
end;
|
|
|
|
|
|
function FileSetDate (Handle, Age: longint): longint;
|
|
var FStat: PFileStatus0;
|
|
RC: longint;
|
|
begin
|
|
if os_mode = osOS2 then
|
|
begin
|
|
New (FStat);
|
|
RC := DosQueryFileInfo (Handle, ilStandard, FStat,
|
|
SizeOf (FStat^));
|
|
if RC <> 0 then
|
|
FileSetDate := -1
|
|
else
|
|
begin
|
|
FStat^.DateLastAccess := Hi (Age);
|
|
FStat^.DateLastWrite := Hi (Age);
|
|
FStat^.TimeLastAccess := Lo (Age);
|
|
FStat^.TimeLastWrite := Lo (Age);
|
|
RC := DosSetFileInfo (Handle, ilStandard, FStat,
|
|
SizeOf (FStat^));
|
|
if RC <> 0 then
|
|
FileSetDate := -1
|
|
else
|
|
FileSetDate := 0;
|
|
end;
|
|
Dispose (FStat);
|
|
end
|
|
else
|
|
asm
|
|
mov ax, 5701h
|
|
mov ebx, Handle
|
|
mov cx, word ptr [Age]
|
|
mov dx, word ptr [Age + 2]
|
|
call syscall
|
|
jnc @FSetDateEnd
|
|
mov eax, -1
|
|
@FSetDateEnd:
|
|
mov [ebp - 4], eax
|
|
end;
|
|
end;
|
|
|
|
|
|
function FileGetAttr (const FileName: string): longint;
|
|
{$IFOPT H+}
|
|
assembler;
|
|
{$ELSE}
|
|
var FN: string;
|
|
begin
|
|
FN := FileName + #0;
|
|
{$ENDIF}
|
|
asm
|
|
mov ax, 4300h
|
|
{$IFOPT H+}
|
|
mov edx, FileName
|
|
{$ELSE}
|
|
lea edx, FN
|
|
inc edx
|
|
{$ENDIF}
|
|
call syscall
|
|
jnc @FGetAttrEnd
|
|
mov eax, -1
|
|
@FGetAttrEnd:
|
|
{$IFOPT H-}
|
|
mov [ebp - 4], eax
|
|
end;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
|
|
function FileSetAttr (const Filename: string; Attr: longint): longint;
|
|
{$IFOPT H+}
|
|
assembler;
|
|
{$ELSE}
|
|
var FN: string;
|
|
begin
|
|
FN := FileName + #0;
|
|
{$ENDIF}
|
|
asm
|
|
mov ax, 4301h
|
|
mov ecx, Attr
|
|
{$IFOPT H+}
|
|
mov edx, FileName
|
|
{$ELSE}
|
|
lea edx, FN
|
|
inc edx
|
|
{$ENDIF}
|
|
call syscall
|
|
mov eax, 0
|
|
jnc @FSetAttrEnd
|
|
mov eax, -1
|
|
@FSetAttrEnd:
|
|
{$IFOPT H-}
|
|
mov [ebp - 4], eax
|
|
end;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
|
|
function DeleteFile (const FileName: string): boolean;
|
|
{$IFOPT H+}
|
|
assembler;
|
|
{$ELSE}
|
|
var FN: string;
|
|
begin
|
|
FN := FileName + #0;
|
|
{$ENDIF}
|
|
asm
|
|
mov ax, 4100h
|
|
{$IFOPT H+}
|
|
mov edx, FileName
|
|
{$ELSE}
|
|
lea edx, FN
|
|
inc edx
|
|
{$ENDIF}
|
|
call syscall
|
|
mov eax, 0
|
|
jc @FDeleteEnd
|
|
inc eax
|
|
@FDeleteEnd:
|
|
{$IFOPT H-}
|
|
mov [ebp - 4], eax
|
|
end;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
|
|
function RenameFile (const OldName, NewName: string): boolean;
|
|
{$IFOPT H+}
|
|
assembler;
|
|
{$ELSE}
|
|
var FN1, FN2: string;
|
|
begin
|
|
FN1 := OldName + #0;
|
|
FN2 := NewName + #0;
|
|
{$ENDIF}
|
|
asm
|
|
mov ax, 5600h
|
|
{$IFOPT H+}
|
|
mov edx, OldName
|
|
mov edi, NewName
|
|
{$ELSE}
|
|
lea edx, FN1
|
|
inc edx
|
|
lea edi, FN2
|
|
inc edi
|
|
{$ENDIF}
|
|
call syscall
|
|
mov eax, 0
|
|
jc @FRenameEnd
|
|
inc eax
|
|
@FRenameEnd:
|
|
{$IFOPT H-}
|
|
mov [ebp - 4], eax
|
|
end;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
|
|
function FileSearch (const Name, DirList: string): string;
|
|
begin
|
|
Result := Dos.FSearch (Name, DirList);
|
|
end;
|
|
|
|
|
|
procedure GetLocalTime (var SystemTime: TSystemTime); assembler;
|
|
asm
|
|
(* Expects the default record alignment (DWord)!!! *)
|
|
mov ah, 2Ah
|
|
call syscall
|
|
mov edi, SystemTime
|
|
xor eax, eax
|
|
mov ax, cx
|
|
stosd
|
|
xor eax, eax
|
|
mov al, dh
|
|
stosd
|
|
mov al, dl
|
|
stosd
|
|
push edi
|
|
mov ah, 2Ch
|
|
call syscall
|
|
pop edi
|
|
xor eax, eax
|
|
mov al, ch
|
|
stosd
|
|
mov al, cl
|
|
stosd
|
|
mov al, dh
|
|
stosd
|
|
mov al, dl
|
|
stosd
|
|
end;
|
|
|
|
procedure InitAnsi;
|
|
var I: byte;
|
|
Country: TCountryCode;
|
|
begin
|
|
for I := 0 to 255 do
|
|
UpperCaseTable [I] := Chr (I);
|
|
Move (UpperCaseTable, LowerCaseTable, SizeOf (UpperCaseTable));
|
|
if os_mode = osOS2 then
|
|
begin
|
|
FillChar (Country, SizeOf (Country), 0);
|
|
DosMapCase (SizeOf (UpperCaseTable), Country, @UpperCaseTable);
|
|
end
|
|
else
|
|
begin
|
|
(* !!! TODO: DOS/DPMI mode support!!! *)
|
|
end;
|
|
for I := 0 to 255 do
|
|
if UpperCaseTable [I] <> Chr (I) then
|
|
LowerCaseTable [Ord (UpperCaseTable [I])] := Chr (I);
|
|
end;
|
|
|
|
procedure InitInternational;
|
|
var Country: TCountryCode;
|
|
CtryInfo: TCountryInfo;
|
|
Size: cardinal;
|
|
RC: longint;
|
|
begin
|
|
Size := 0;
|
|
FillChar (Country, SizeOf (Country), 0);
|
|
FillChar (CtryInfo, SizeOf (CtryInfo), 0);
|
|
RC := DosQueryCtryInfo (SizeOf (CtryInfo), Country, CtryInfo, Size);
|
|
if RC = 0 then
|
|
begin
|
|
DateSeparator := CtryInfo.DateSeparator;
|
|
case CtryInfo.DateFormat of
|
|
1: begin
|
|
ShortDateFormat := 'd/m/y';
|
|
LongDateFormat := 'dd" "mmmm" "yyyy';
|
|
end;
|
|
2: begin
|
|
ShortDateFormat := 'y/m/d';
|
|
LongDateFormat := 'yyyy" "mmmm" "dd';
|
|
end;
|
|
3: begin
|
|
ShortDateFormat := 'm/d/y';
|
|
LongDateFormat := 'mmmm" "dd" "yyyy';
|
|
end;
|
|
end;
|
|
TimeSeparator := CtryInfo.TimeSeparator;
|
|
DecimalSeparator := CtryInfo.DecimalSeparator;
|
|
ThousandSeparator := CtryInfo.ThousandSeparator;
|
|
CurrencyFormat := CtryInfo.CurrencyFormat;
|
|
CurrencyString := PChar (CtryInfo.CurrencyUnit);
|
|
end;
|
|
InitAnsi;
|
|
end;
|
|
|
|
|
|
{
|
|
$Log$
|
|
Revision 1.13 2000-07-06 19:03:40 hajny
|
|
* filutil.inc implementation (almost) finished
|
|
|
|
Revision 1.12 2000/06/05 18:57:38 hajny
|
|
* handle number check added to FileClose
|
|
|
|
Revision 1.11 2000/06/04 15:04:22 hajny
|
|
* another bunch of corrections
|
|
|
|
Revision 1.10 2000/06/04 14:22:02 hajny
|
|
* minor corrections
|
|
|
|
Revision 1.9 2000/06/01 18:36:50 hajny
|
|
* FileGetDate added
|
|
|
|
Revision 1.8 2000/05/29 17:59:58 hajny
|
|
* FindClose implemented
|
|
|
|
Revision 1.7 2000/05/28 18:22:58 hajny
|
|
+ implementation started
|
|
|
|
Revision 1.6 2000/02/17 22:16:05 sg
|
|
* Changed the second argument of FileWrite from "var buffer" to
|
|
"const buffer", like in Delphi.
|
|
|
|
Revision 1.5 2000/02/09 16:59:33 peter
|
|
* truncated log
|
|
|
|
Revision 1.4 2000/01/07 16:41:47 daniel
|
|
* copyright 2000
|
|
|
|
Revision 1.3 1999/11/08 22:45:55 peter
|
|
* updated
|
|
|
|
}
|