mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-10-31 22:11:12 +01:00
507 lines
12 KiB
ObjectPascal
507 lines
12 KiB
ObjectPascal
{
|
|
$Id$
|
|
This file is part of the Free Pascal run time library.
|
|
Copyright (c) 1999-2000 by Florian Klaempfl
|
|
member of the Free Pascal development team
|
|
|
|
Sysutils unit for linux
|
|
|
|
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.
|
|
|
|
**********************************************************************}
|
|
unit sysutils;
|
|
interface
|
|
|
|
{$MODE objfpc}
|
|
{ force ansistrings }
|
|
{$H+}
|
|
|
|
uses
|
|
Unix,errors;
|
|
|
|
{ Include platform independent interface part }
|
|
{$i sysutilh.inc}
|
|
|
|
|
|
implementation
|
|
|
|
{ Include platform independent implementation part }
|
|
{$i sysutils.inc}
|
|
|
|
|
|
{****************************************************************************
|
|
File Functions
|
|
****************************************************************************}
|
|
|
|
Function FileOpen (Const FileName : string; Mode : Integer) : Longint;
|
|
|
|
Var LinuxFlags : longint;
|
|
|
|
BEGIN
|
|
LinuxFlags:=0;
|
|
Case (Mode and 3) of
|
|
0 : LinuxFlags:=LinuxFlags or Open_RdOnly;
|
|
1 : LinuxFlags:=LinuxFlags or Open_WrOnly;
|
|
2 : LinuxFlags:=LinuxFlags or Open_RdWr;
|
|
end;
|
|
FileOpen:=fdOpen (FileName,LinuxFlags);
|
|
//!! We need to set locking based on Mode !!
|
|
end;
|
|
|
|
|
|
Function FileCreate (Const FileName : String) : Longint;
|
|
|
|
begin
|
|
FileCreate:=fdOpen(FileName,Open_RdWr or Open_Creat or Open_Trunc);
|
|
end;
|
|
|
|
|
|
Function FileRead (Handle : Longint; Var Buffer; Count : longint) : Longint;
|
|
|
|
begin
|
|
FileRead:=fdRead (Handle,Buffer,Count);
|
|
end;
|
|
|
|
|
|
Function FileWrite (Handle : Longint; const Buffer; Count : Longint) : Longint;
|
|
|
|
begin
|
|
FileWrite:=fdWrite (Handle,Buffer,Count);
|
|
end;
|
|
|
|
|
|
Function FileSeek (Handle,FOffset,Origin : Longint) : Longint;
|
|
|
|
begin
|
|
FileSeek:=fdSeek (Handle,FOffset,Origin);
|
|
end;
|
|
|
|
|
|
Procedure FileClose (Handle : Longint);
|
|
|
|
begin
|
|
fdclose(Handle);
|
|
end;
|
|
|
|
Function FileTruncate (Handle,Size: Longint) : boolean;
|
|
|
|
begin
|
|
FileTruncate:=fdtruncate(Handle,Size);
|
|
end;
|
|
|
|
Function FileAge (Const FileName : String): Longint;
|
|
|
|
Var Info : Stat;
|
|
Y,M,D,hh,mm,ss : word;
|
|
|
|
begin
|
|
If not fstat (FileName,Info) then
|
|
exit(-1)
|
|
else
|
|
begin
|
|
EpochToLocal(info.mtime,y,m,d,hh,mm,ss);
|
|
Result:=DateTimeToFileDate(EncodeDate(y,m,d)+EncodeTime(hh,mm,ss,0));
|
|
end;
|
|
end;
|
|
|
|
|
|
Function FileExists (Const FileName : String) : Boolean;
|
|
|
|
Var Info : Stat;
|
|
|
|
begin
|
|
FileExists:=fstat(filename,Info);
|
|
end;
|
|
|
|
|
|
Function LinuxToWinAttr (FN : Pchar; Const Info : Stat) : Longint;
|
|
|
|
begin
|
|
Result:=faArchive;
|
|
If (Info.Mode and STAT_IFDIR)=STAT_IFDIR then
|
|
Result:=Result or faDirectory;
|
|
If (FN[0]='.') and (not (FN[1] in [#0,'.'])) then
|
|
Result:=Result or faHidden;
|
|
If (Info.Mode and STAT_IWUSR)=0 Then
|
|
Result:=Result or faReadOnly;
|
|
If (Info.Mode and
|
|
(STAT_IFSOCK or STAT_IFBLK or STAT_IFCHR or STAT_IFIFO))<>0 then
|
|
Result:=Result or faSysFile;
|
|
end;
|
|
|
|
{
|
|
GlobToSearch takes a glob entry, stats the file.
|
|
The glob entry is removed.
|
|
If FileAttributes match, the entry is reused
|
|
}
|
|
|
|
Type
|
|
TGlobSearchRec = Record
|
|
Path : String;
|
|
GlobHandle : PGlob;
|
|
end;
|
|
PGlobSearchRec = ^TGlobSearchRec;
|
|
|
|
Function GlobToTSearchRec (Var Info : TSearchRec) : Boolean;
|
|
|
|
Var SInfo : Stat;
|
|
p : Pglob;
|
|
GlobSearchRec : PGlobSearchrec;
|
|
|
|
begin
|
|
GlobSearchRec:=PGlobSearchrec(Info.FindHandle);
|
|
P:=GlobSearchRec^.GlobHandle;
|
|
Result:=P<>Nil;
|
|
If Result then
|
|
begin
|
|
GlobSearchRec^.GlobHandle:=P^.Next;
|
|
Result:=Fstat(GlobSearchRec^.Path+StrPas(p^.name),SInfo);
|
|
If Result then
|
|
begin
|
|
Info.Attr:=LinuxToWinAttr(p^.name,SInfo);
|
|
Result:=(Info.ExcludeAttr and Info.Attr)=0;
|
|
If Result Then
|
|
With Info do
|
|
begin
|
|
Attr:=Info.Attr;
|
|
If P^.Name<>Nil then
|
|
Name:=strpas(p^.name);
|
|
Time:=Sinfo.mtime;
|
|
Size:=Sinfo.Size;
|
|
end;
|
|
end;
|
|
P^.Next:=Nil;
|
|
GlobFree(P);
|
|
end;
|
|
end;
|
|
|
|
Function DoFind(Var Rslt : TSearchRec) : Longint;
|
|
|
|
Var
|
|
GlobSearchRec : PGlobSearchRec;
|
|
|
|
begin
|
|
Result:=-1;
|
|
GlobSearchRec:=PGlobSearchRec(Rslt.FindHandle);
|
|
If (GlobSearchRec^.GlobHandle<>Nil) then
|
|
While (GlobSearchRec^.GlobHandle<>Nil) and not (Result=0) do
|
|
If GlobToTSearchRec(Rslt) Then Result:=0;
|
|
end;
|
|
|
|
|
|
|
|
Function FindFirst (Const Path : String; Attr : Longint; Var Rslt : TSearchRec) : Longint;
|
|
|
|
Var
|
|
GlobSearchRec : PGlobSearchRec;
|
|
|
|
begin
|
|
New(GlobSearchRec);
|
|
GlobSearchRec^.Path:=ExpandFileName(ExtractFilePath(Path));
|
|
GlobSearchRec^.GlobHandle:=Glob(Path);
|
|
Rslt.ExcludeAttr:=Not Attr; //!! Not correct !!
|
|
Rslt.FindHandle:=Longint(GlobSearchRec);
|
|
Result:=DoFind (Rslt);
|
|
end;
|
|
|
|
|
|
Function FindNext (Var Rslt : TSearchRec) : Longint;
|
|
|
|
begin
|
|
Result:=DoFind (Rslt);
|
|
end;
|
|
|
|
|
|
Procedure FindClose (Var F : TSearchrec);
|
|
|
|
Var
|
|
GlobSearchRec : PGlobSearchRec;
|
|
|
|
begin
|
|
GlobSearchRec:=PGlobSearchRec(F.FindHandle);
|
|
GlobFree (GlobSearchRec^.GlobHandle);
|
|
Dispose(GlobSearchRec);
|
|
end;
|
|
|
|
|
|
Function FileGetDate (Handle : Longint) : Longint;
|
|
|
|
Var Info : Stat;
|
|
|
|
begin
|
|
If Not(FStat(Handle,Info)) then
|
|
Result:=-1
|
|
else
|
|
Result:=Info.Mtime;
|
|
end;
|
|
|
|
|
|
Function FileSetDate (Handle,Age : Longint) : Longint;
|
|
|
|
begin
|
|
// Impossible under Linux from FileHandle !!
|
|
FileSetDate:=-1;
|
|
end;
|
|
|
|
|
|
Function FileGetAttr (Const FileName : String) : Longint;
|
|
|
|
Var Info : Stat;
|
|
|
|
begin
|
|
If Not FStat (FileName,Info) then
|
|
Result:=-1
|
|
Else
|
|
Result:=LinuxToWinAttr(Pchar(FileName),Info);
|
|
end;
|
|
|
|
|
|
Function FileSetAttr (Const Filename : String; Attr: longint) : Longint;
|
|
|
|
begin
|
|
Result:=-1;
|
|
end;
|
|
|
|
|
|
Function DeleteFile (Const FileName : String) : Boolean;
|
|
|
|
begin
|
|
Result:=UnLink (FileName);
|
|
end;
|
|
|
|
|
|
Function RenameFile (Const OldName, NewName : String) : Boolean;
|
|
|
|
begin
|
|
RenameFile:=Unix.FRename(OldNAme,NewName);
|
|
end;
|
|
|
|
|
|
Function FileSearch (Const Name, DirList : String) : String;
|
|
|
|
begin
|
|
FileSearch:=Unix.FSearch(Name,Dirlist);
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
Disk Functions
|
|
****************************************************************************}
|
|
|
|
{
|
|
The Diskfree and Disksize functions need a file on the specified drive, since this
|
|
is required for the statfs system call.
|
|
These filenames are set in drivestr[0..26], and have been preset to :
|
|
0 - '.' (default drive - hence current dir is ok.)
|
|
1 - '/fd0/.' (floppy drive 1 - should be adapted to local system )
|
|
2 - '/fd1/.' (floppy drive 2 - should be adapted to local system )
|
|
3 - '/' (C: equivalent of dos is the root partition)
|
|
4..26 (can be set by you're own applications)
|
|
! Use AddDisk() to Add new drives !
|
|
They both return -1 when a failure occurs.
|
|
}
|
|
Const
|
|
FixDriveStr : array[0..3] of pchar=(
|
|
'.',
|
|
'/fd0/.',
|
|
'/fd1/.',
|
|
'/.'
|
|
);
|
|
var
|
|
Drives : byte;
|
|
DriveStr : array[4..26] of pchar;
|
|
|
|
Procedure AddDisk(const path:string);
|
|
begin
|
|
if not (DriveStr[Drives]=nil) then
|
|
FreeMem(DriveStr[Drives],StrLen(DriveStr[Drives])+1);
|
|
GetMem(DriveStr[Drives],length(Path)+1);
|
|
StrPCopy(DriveStr[Drives],path);
|
|
inc(Drives);
|
|
if Drives>26 then
|
|
Drives:=4;
|
|
end;
|
|
|
|
|
|
Function DiskFree(Drive: Byte): int64;
|
|
var
|
|
fs : tstatfs;
|
|
Begin
|
|
if ((Drive<4) and (not (fixdrivestr[Drive]=nil)) and statfs(StrPas(fixdrivestr[drive]),fs)) or
|
|
((not (drivestr[Drive]=nil)) and statfs(StrPas(drivestr[drive]),fs)) then
|
|
Diskfree:=int64(fs.bavail)*int64(fs.bsize)
|
|
else
|
|
Diskfree:=-1;
|
|
End;
|
|
|
|
|
|
|
|
Function DiskSize(Drive: Byte): int64;
|
|
var
|
|
fs : tstatfs;
|
|
Begin
|
|
if ((Drive<4) and (not (fixdrivestr[Drive]=nil)) and statfs(StrPas(fixdrivestr[drive]),fs)) or
|
|
((not (drivestr[Drive]=nil)) and statfs(StrPas(drivestr[drive]),fs)) then
|
|
DiskSize:=int64(fs.blocks)*int64(fs.bsize)
|
|
else
|
|
DiskSize:=-1;
|
|
End;
|
|
|
|
|
|
Function GetCurrentDir : String;
|
|
begin
|
|
GetDir (0,Result);
|
|
end;
|
|
|
|
|
|
Function SetCurrentDir (Const NewDir : String) : Boolean;
|
|
begin
|
|
{$I-}
|
|
ChDir(NewDir);
|
|
{$I+}
|
|
result := (IOResult = 0);
|
|
end;
|
|
|
|
|
|
Function CreateDir (Const NewDir : String) : Boolean;
|
|
begin
|
|
{$I-}
|
|
MkDir(NewDir);
|
|
{$I+}
|
|
result := (IOResult = 0);
|
|
end;
|
|
|
|
|
|
Function RemoveDir (Const Dir : String) : Boolean;
|
|
begin
|
|
{$I-}
|
|
RmDir(Dir);
|
|
{$I+}
|
|
result := (IOResult = 0);
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
Misc Functions
|
|
****************************************************************************}
|
|
|
|
procedure Beep;
|
|
begin
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
Locale Functions
|
|
****************************************************************************}
|
|
|
|
Procedure GetLocalTime(var SystemTime: TSystemTime);
|
|
begin
|
|
Unix.GetTime(SystemTime.Hour, SystemTime.Minute, SystemTime.Second);
|
|
Unix.GetDate(SystemTime.Year, SystemTime.Month, SystemTime.Day);
|
|
SystemTime.MilliSecond := 0;
|
|
end ;
|
|
|
|
|
|
Procedure InitAnsi;
|
|
Var
|
|
i : longint;
|
|
begin
|
|
{ Fill table entries 0 to 127 }
|
|
for i := 0 to 96 do
|
|
UpperCaseTable[i] := chr(i);
|
|
for i := 97 to 122 do
|
|
UpperCaseTable[i] := chr(i - 32);
|
|
for i := 123 to 191 do
|
|
UpperCaseTable[i] := chr(i);
|
|
Move (CPISO88591UCT,UpperCaseTable[192],SizeOf(CPISO88591UCT));
|
|
|
|
for i := 0 to 64 do
|
|
LowerCaseTable[i] := chr(i);
|
|
for i := 65 to 90 do
|
|
LowerCaseTable[i] := chr(i + 32);
|
|
for i := 91 to 191 do
|
|
LowerCaseTable[i] := chr(i);
|
|
Move (CPISO88591LCT,UpperCaseTable[192],SizeOf(CPISO88591UCT));
|
|
end;
|
|
|
|
|
|
Procedure InitInternational;
|
|
begin
|
|
InitAnsi;
|
|
end;
|
|
|
|
function SysErrorMessage(ErrorCode: Integer): String;
|
|
|
|
begin
|
|
Result:=StrError(ErrorCode);
|
|
end;
|
|
|
|
{****************************************************************************
|
|
OS utility functions
|
|
****************************************************************************}
|
|
|
|
Function GetEnvironmentVariable(Const EnvVar : String) : String;
|
|
|
|
begin
|
|
Result:=StrPas(Unix.Getenv(PChar(EnvVar)));
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
Initialization code
|
|
****************************************************************************}
|
|
|
|
Initialization
|
|
InitExceptions; { Initialize exceptions. OS independent }
|
|
InitInternational; { Initialize internationalization settings }
|
|
Finalization
|
|
DoneExceptions;
|
|
end.
|
|
{
|
|
|
|
$Log$
|
|
Revision 1.10 2001-06-03 20:19:09 peter
|
|
* FSStat to StatFS
|
|
* StatFS structure to TStatFS
|
|
|
|
Revision 1.9 2001/06/03 15:18:01 peter
|
|
* eoutofmemory and einvalidpointer fix
|
|
|
|
Revision 1.8 2001/02/20 22:19:38 peter
|
|
* always test before commiting after merging, linux -> unix change
|
|
|
|
Revision 1.7 2001/02/20 22:14:19 peter
|
|
* merged getenvironmentvariable
|
|
|
|
Revision 1.6 2001/01/21 20:21:40 marco
|
|
* Rename fest II. Rtl OK
|
|
|
|
Revision 1.5 2000/12/28 20:50:04 peter
|
|
* merged fixes from 1.0.x
|
|
|
|
Revision 1.4 2000/12/18 14:01:42 jonas
|
|
* fixed constant range error
|
|
|
|
Revision 1.3 2000/11/28 20:06:12 michael
|
|
+ merged fix for findfirst/findnext/findclose
|
|
|
|
Revision 1.2 2000/09/18 13:14:51 marco
|
|
* Global Linux +bsd to (rtl/freebsd rtl/unix rtl/linux structure)
|
|
|
|
Revision 1.3 2000/08/29 17:58:13 michael
|
|
Merged syserrormsg fix
|
|
|
|
Revision 1.2 2000/08/20 15:46:46 peter
|
|
* sysutils.pp moved to target and merged with disk.inc, filutil.inc
|
|
Revision 1.1.2.2 2000/11/28 20:01:22 michael
|
|
+ Fixed findfirst/findnext/findclose
|
|
|
|
Revision 1.1.2.1 2000/09/14 13:38:26 marco
|
|
* Moved from Linux dir. now start of generic unix dir, from which the
|
|
really exotic features should be moved to the target specific dirs.
|
|
} |