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1215 lines
30 KiB
ObjectPascal
1215 lines
30 KiB
ObjectPascal
{****************************************************************************
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$Id$
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Free Pascal Runtime-Library
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DOS unit for OS/2
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Copyright (c) 1997,1999-2000 by Daniel Mantione,
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member of the Free Pascal development team
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See the file COPYING.FPC, included in this distribution,
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for details about the copyright.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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****************************************************************************}
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unit dos;
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{$ASMMODE ATT}
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{***************************************************************************}
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interface
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{***************************************************************************}
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{$PACKRECORDS 1}
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uses Strings, DosCalls;
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const {Bit masks for CPU flags.}
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fcarry = $0001;
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fparity = $0004;
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fauxiliary = $0010;
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fzero = $0040;
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fsign = $0080;
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foverflow = $0800;
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{Bit masks for file attributes.}
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readonly = $01;
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hidden = $02;
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sysfile = $04;
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volumeid = $08;
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directory = $10;
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archive = $20;
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anyfile = $3F;
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fmclosed = $D7B0;
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fminput = $D7B1;
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fmoutput = $D7B2;
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fminout = $D7B3;
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type {Some string types:}
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comstr=string; {Filenames can be long in OS/2.}
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pathstr=string; {String for pathnames.}
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dirstr=string; {String for a directory}
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namestr=string; {String for a filename.}
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extstr=string[40]; {String for an extension. Can be 253
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characters long, in theory, but let's
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say fourty will be enough.}
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{Search record which is used by findfirst and findnext:}
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searchrec=record
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case boolean of
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false: (handle:longint; {Used in os_OS2 mode}
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FStat:PFileFindBuf3;
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fill2:array[1..21-SizeOf(longint)-SizeOf(pointer)] of byte;
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attr2:byte;
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time2:longint;
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size2:longint;
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name2:string); {Filenames can be long in OS/2!}
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true: (fill:array[1..21] of byte;
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attr:byte;
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time:longint;
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size:longint;
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name:string); {Filenames can be long in OS/2!}
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end;
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{$i filerec.inc}
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{$i textrec.inc}
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{Data structure for the registers needed by msdos and intr:}
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registers=packed record
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case i:integer of
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0:(ax,f1,bx,f2,cx,f3,dx,f4,bp,f5,si,f51,di,f6,ds,f7,es,
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f8,flags,fs,gs:word);
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1:(al,ah,f9,f10,bl,bh,f11,f12,cl,ch,f13,f14,dl,dh:byte);
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2:(eax,ebx,ecx,edx,ebp,esi,edi:longint);
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end;
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{Record for date and time:}
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datetime=record
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year,month,day,hour,min,sec:word;
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end;
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{Flags for the exec procedure:
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Starting the program:
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efwait: Wait until program terminates.
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efno_wait: Don't wait until the program terminates. Does not work
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in dos, as DOS cannot multitask.
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efoverlay: Terminate this program, then execute the requested
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program. WARNING: Exit-procedures are not called!
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efdebug: Debug program. Details are unknown.
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efsession: Do not execute as child of this program. Use a seperate
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session instead.
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efdetach: Detached. Function unknown. Info wanted!
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efpm: Run as presentation manager program.
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Determining the window state of the program:
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efdefault: Run the pm program in it's default situation.
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efminimize: Run the pm program minimized.
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efmaximize: Run the pm program maximized.
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effullscreen: Run the non-pm program fullscreen.
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efwindowed: Run the non-pm program in a window.
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Other options are not implemented defined because lack of
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knowledge about what they do.}
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type execrunflags=(efwait,efno_wait,efoverlay,efdebug,efsession,
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efdetach,efpm);
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execwinflags=(efdefault,efminimize,efmaximize,effullscreen,
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efwindowed);
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const
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(* For compatibility with VP/2, used for runflags in Exec procedure. *)
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ExecFlags: cardinal = ord (efwait);
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var doserror:integer;
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dosexitcode:word;
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procedure getdate(var year,month,day,dayofweek:word);
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procedure gettime(var hour,minute,second,sec100:word);
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function dosversion:word;
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procedure setdate(year,month,day:word);
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procedure settime(hour,minute,second,sec100:word);
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procedure getcbreak(var breakvalue:boolean);
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procedure setcbreak(breakvalue:boolean);
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procedure getverify(var verify:boolean);
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procedure setverify(verify : boolean);
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function DiskFree (Drive: byte) : int64;
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function DiskSize (Drive: byte) : int64;
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procedure findfirst(const path:pathstr;attr:word;var f:searchRec);
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procedure findnext(var f:searchRec);
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procedure findclose(var f:searchRec);
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{Is a dummy:}
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procedure swapvectors;
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{Not supported:
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procedure getintvec(intno:byte;var vector:pointer);
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procedure setintvec(intno:byte;vector:pointer);
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procedure keep(exitcode:word);
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}
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procedure msdos(var regs:registers);
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procedure intr(intno : byte;var regs:registers);
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procedure getfattr(var f;var attr:word);
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procedure setfattr(var f;attr:word);
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function fsearch(path:pathstr;dirlist:string):pathstr;
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procedure getftime(var f;var time:longint);
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procedure setftime(var f;time:longint);
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procedure packtime (var d:datetime; var time:longint);
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procedure unpacktime (time:longint; var d:datetime);
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function fexpand(const path:pathstr):pathstr;
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procedure fsplit(path:pathstr;var dir:dirstr;var name:namestr;
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var ext:extstr);
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procedure exec(const path:pathstr;const comline:comstr);
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function exec(path:pathstr;runflags:execrunflags;winflags:execwinflags;
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const comline:comstr):longint;
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function envcount:longint;
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function envstr(index:longint) : string;
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function getenv(const envvar:string): string;
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implementation
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var LastSR: SearchRec;
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envc: longint; external name '_envc';
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EnvP: ppchar; external name '_environ';
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type TBA = array [1..SizeOf (SearchRec)] of byte;
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PBA = ^TBA;
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{Import syscall to call it nicely from assembler procedures.}
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procedure syscall;external name '___SYSCALL';
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function fsearch(path:pathstr;dirlist:string):pathstr;
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var i,p1:longint;
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newdir:pathstr;
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{$ASMMODE INTEL}
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function CheckFile (FN: ShortString):boolean; assembler;
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asm
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mov ax, 4300h
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mov edx, FN { get pointer to string }
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inc edx { avoid length byte }
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call syscall
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mov ax, 0
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jc @LCFstop
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test cx, 18h
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jnz @LCFstop
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inc ax
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@LCFstop:
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end;
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{$ASMMODE ATT}
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begin
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{ check if the file specified exists }
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if CheckFile (Path + #0) then
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FSearch := Path
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else
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begin
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{No wildcards allowed in these things:}
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if (pos('?',path)<>0) or (pos('*',path)<>0) then
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fsearch:=''
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else
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begin
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{ allow slash as backslash }
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for i:=1 to length(dirlist) do
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if dirlist[i]='/' then dirlist[i]:='\';
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repeat
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p1:=pos(';',dirlist);
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if p1<>0 then
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begin
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newdir:=copy(dirlist,1,p1-1);
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delete(dirlist,1,p1);
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end
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else
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begin
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newdir:=dirlist;
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dirlist:='';
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end;
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if (newdir<>'') and
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not (newdir[length(newdir)] in ['\',':']) then
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newdir:=newdir+'\';
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if CheckFile (NewDir + Path + #0) then
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NewDir := NewDir + Path
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else
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NewDir := '';
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until (DirList = '') or (NewDir <> '');
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FSearch := NewDir;
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end;
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end;
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end;
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procedure getftime(var f;var time:longint);
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begin
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asm
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{Load handle}
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movl f,%ebx
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movl (%ebx),%ebx
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{Get date}
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movw $0x5700,%ax
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call syscall
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shll $16,%edx
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movw %cx,%dx
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movl time,%ebx
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movl %edx,(%ebx)
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xorb %ah,%ah
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movw %ax,doserror
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end;
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end;
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procedure SetFTime (var F; Time: longint);
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var FStat: PFileStatus3;
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RC: longint;
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begin
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if os_mode = osOS2 then
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begin
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New (FStat);
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RC := DosQueryFileInfo (FileRec (F).Handle, ilStandard, FStat,
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SizeOf (FStat^));
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if RC = 0 then
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begin
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FStat^.DateLastAccess := Hi (Time);
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FStat^.DateLastWrite := Hi (Time);
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FStat^.TimeLastAccess := Lo (Time);
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FStat^.TimeLastWrite := Lo (Time);
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RC := DosSetFileInfo (FileRec (F).Handle, ilStandard,
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FStat, SizeOf (FStat^));
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end;
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DosError := integer(RC);
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Dispose (FStat);
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end
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else
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asm
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{Load handle}
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movl f,%ebx
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movw (%ebx),%ebx
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movl time,%ecx
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shldl $16,%ecx,%edx
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{Set date}
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movw $0x5701,%ax
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call syscall
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xorb %ah,%ah
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movw %ax,doserror
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end;
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end;
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procedure msdos(var regs:registers);
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{Not recommended for EMX. Only works in DOS mode, not in OS/2 mode.}
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begin
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if os_mode in [osDPMI,osDOS] then
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intr($21,regs);
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end;
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procedure intr(intno:byte;var regs:registers);
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{Not recommended for EMX. Only works in DOS mode, not in OS/2 mode.}
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begin
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if os_mode = osos2 then exit;
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asm
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jmp .Lstart
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{ .data}
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.Lint86:
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.byte 0xcd
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.Lint86_vec:
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.byte 0x03
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jmp .Lint86_retjmp
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{ .text}
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.Lstart:
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movb intno,%al
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movb %al,.Lint86_vec
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{
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movl 10(%ebp),%eax
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incl %eax
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incl %eax
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}
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movl regs,%eax
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{Do not use first int}
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movl 4(%eax),%ebx
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movl 8(%eax),%ecx
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movl 12(%eax),%edx
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movl 16(%eax),%ebp
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movl 20(%eax),%esi
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movl 24(%eax),%edi
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movl (%eax),%eax
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jmp .Lint86
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.Lint86_retjmp:
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pushf
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pushl %ebp
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pushl %eax
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movl %esp,%ebp
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{Calc EBP new}
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addl $12,%ebp
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{
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movl 10(%ebp),%eax
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incl %eax
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incl %eax
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}
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{Do not use first int}
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movl regs,%eax
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popl (%eax)
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movl %ebx,4(%eax)
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movl %ecx,8(%eax)
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movl %edx,12(%eax)
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{Restore EBP}
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popl %edx
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movl %edx,16(%eax)
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movl %esi,20(%eax)
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movl %edi,24(%eax)
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{Ignore ES and DS}
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popl %ebx {Flags.}
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movl %ebx,32(%eax)
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{FS and GS too}
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end;
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end;
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procedure exec(const path:pathstr;const comline:comstr);
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{Execute a program.}
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begin
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dosexitcode:=word(exec(path,execrunflags(ExecFlags),efdefault,comline));
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end;
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function exec(path:pathstr;runflags:execrunflags;winflags:execwinflags;
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const comline:comstr):longint;
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{Execute a program. More suitable for OS/2 than the exec above.}
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{512 bytes should be enough to contain the command-line.}
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type bytearray=array[0..8191] of byte;
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Pbytearray=^bytearray;
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execstruc=packed record
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argofs : pointer; { pointer to arguments (offset) }
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envofs : pointer; { pointer to environment (offset) }
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nameofs: pointer; { pointer to file name (offset) }
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argseg : word; { pointer to arguments (selector) }
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envseg : word; { pointer to environment (selector}
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nameseg: word; { pointer to file name (selector) }
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numarg : word; { number of arguments }
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sizearg : word; { size of arguments }
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numenv : word; { number of env strings }
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sizeenv:word; { size of environment }
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mode1,mode2:byte; { mode byte }
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end;
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var args:Pbytearray;
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env:Pbytearray;
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i,argsize:word;
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es:execstruc;
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esadr:pointer;
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d:dirstr;
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n:namestr;
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e:extstr;
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p : ppchar;
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j : integer;
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begin
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getmem(args,512);
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GetMem(env, envc*sizeof(pchar)+16384);
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{Now setup the arguments. The first argument should be the program
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name without directory and extension.}
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fsplit(path,d,n,e);
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es.numarg:=1;
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args^[0]:=$80;
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argsize:=1;
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for i:=1 to length(n) do
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begin
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args^[argsize]:=byte(n[i]);
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inc(argsize);
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end;
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args^[argsize]:=0;
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inc(argsize);
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{Now do the real arguments.}
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i:=1;
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while i<=length(comline) do
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begin
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if comline[i]<>' ' then
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begin
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{Commandline argument found. Copy it.}
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inc(es.numarg);
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args^[argsize]:=$80;
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inc(argsize);
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while (i<=length(comline)) and (comline[i]<>' ') do
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begin
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args^[argsize]:=byte(comline[i]);
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inc(argsize);
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inc(i);
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end;
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args^[argsize]:=0;
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inc(argsize);
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end;
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inc(i);
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end;
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args^[argsize]:=0;
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inc(argsize);
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{Commandline ready, now build the environment.
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Oh boy, I always had the opinion that executing a program under Dos
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was a hard job!}
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asm
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movl env,%edi {Setup destination pointer.}
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movl envc,%ecx {Load number of arguments in edx.}
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movl envp,%esi {Load env. strings.}
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xorl %edx,%edx {Count environment size.}
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.Lexa1:
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lodsl {Load a Pchar.}
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xchgl %eax,%ebx
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.Lexa2:
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movb (%ebx),%al {Load a byte.}
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incl %ebx {Point to next byte.}
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stosb {Store it.}
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incl %edx {Increase counter.}
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cmpb $0,%al {Ready ?.}
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jne .Lexa2
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loop .Lexa1 {Next argument.}
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stosb {Store an extra 0 to finish. (AL is now 0).}
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incl %edx
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movw %dx,ES.SizeEnv {Store environment size.}
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end;
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{Environment ready, now set-up exec structure.}
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es.argofs:=args;
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es.envofs:=env;
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es.numenv:=envc;
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{ set an error - path is too long }
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{ since we must add a zero to the }
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{ end. }
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if length(path) > 254 then
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begin
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exec := 8;
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exit;
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end;
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path[length(path)+1] := #0;
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es.nameofs:=pointer(longint(@path)+1);
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asm
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movw %ss,es.argseg
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movw %ss,es.envseg
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movw %ss,es.nameseg
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end;
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es.sizearg:=argsize;
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{Typecasting of sets in FPC is a bit hard.}
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es.mode1:=byte(runflags);
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es.mode2:=byte(winflags);
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|
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{Now exec the program.}
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asm
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leal es,%edx
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movw $0x7f06,%ax
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call syscall
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movl $0,%edi
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jnc .Lexprg1
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xchgl %eax,%edi
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xorl %eax,%eax
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decl %eax
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.Lexprg1:
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movw %di,doserror
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movl %eax,__RESULT
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end;
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|
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freemem(args,512);
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FreeMem(env, envc*sizeof(pchar)+16384);
|
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{Phew! That's it. This was the most sophisticated procedure to call
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a system function I ever wrote!}
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end;
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|
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function dosversion:word;assembler;
|
|
|
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{Returns DOS version in DOS and OS/2 version in OS/2}
|
|
asm
|
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movb $0x30,%ah
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call syscall
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end;
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|
|
procedure GetDate (var Year, Month, Day, DayOfWeek: word);
|
|
|
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begin
|
|
asm
|
|
movb $0x2a, %ah
|
|
call syscall
|
|
xorb %ah, %ah
|
|
movl DayOfWeek, %edi
|
|
stosw
|
|
movl Day, %edi
|
|
movb %dl, %al
|
|
stosw
|
|
movl Month, %edi
|
|
movb %dh, %al
|
|
stosw
|
|
movl Year, %edi
|
|
xchgw %ecx, %eax
|
|
stosw
|
|
end;
|
|
end;
|
|
|
|
{$asmmode intel}
|
|
|
|
procedure SetDate (Year, Month, Day: word);
|
|
var DT: TDateTime;
|
|
begin
|
|
if os_mode = osOS2 then
|
|
begin
|
|
DosGetDateTime (DT);
|
|
DT.Year := Year;
|
|
DT.Month := byte (Month);
|
|
DT.Day := byte (Day);
|
|
DosSetDateTime (DT);
|
|
end
|
|
else
|
|
asm
|
|
mov cx, Year
|
|
mov dh, byte ptr Month
|
|
mov dl, byte ptr Day
|
|
mov ah, 2Bh
|
|
call syscall
|
|
end;
|
|
end;
|
|
|
|
{$asmmode att}
|
|
|
|
procedure GetTime (var Hour, Minute, Second, Sec100: word); assembler;
|
|
asm
|
|
movb $0x2c, %ah
|
|
call syscall
|
|
xorb %ah, %ah
|
|
movl Sec100, %edi
|
|
movb %dl, %al
|
|
stosw
|
|
movl Second, %edi
|
|
movb %dh,%al
|
|
stosw
|
|
movl Minute, %edi
|
|
movb %cl,%al
|
|
stosw
|
|
movl Hour, %edi
|
|
movb %ch,%al
|
|
stosw
|
|
end;
|
|
|
|
{$asmmode intel}
|
|
procedure SetTime (Hour, Minute, Second, Sec100: word);
|
|
var DT: TDateTime;
|
|
begin
|
|
if os_mode = osOS2 then
|
|
begin
|
|
DosGetDateTime (DT);
|
|
DT.Hour := byte (Hour);
|
|
DT.Minute := byte (Minute);
|
|
DT.Second := byte (Second);
|
|
DT.Sec100 := byte (Sec100);
|
|
DosSetDateTime (DT);
|
|
end
|
|
else
|
|
asm
|
|
mov ch, byte ptr Hour
|
|
mov cl, byte ptr Minute
|
|
mov dh, byte ptr Second
|
|
mov dl, byte ptr Sec100
|
|
mov ah, 2Dh
|
|
call syscall
|
|
end;
|
|
end;
|
|
|
|
{$asmmode att}
|
|
|
|
procedure getcbreak(var breakvalue:boolean);
|
|
|
|
begin
|
|
DosError := 0;
|
|
{! Do not use in OS/2. Also not recommended in DOS. Use
|
|
signal handling instead.
|
|
asm
|
|
movw $0x3300,%ax
|
|
call syscall
|
|
movl BreakValue,%eax
|
|
movb %dl,(%eax)
|
|
end;
|
|
}
|
|
end;
|
|
|
|
procedure setcbreak(breakvalue:boolean);
|
|
|
|
begin
|
|
DosError := 0;
|
|
{! Do not use in OS/2. Also not recommended in DOS. Use
|
|
signal handling instead.
|
|
asm
|
|
movb 8(%ebp),%dl
|
|
movw $0x3301,%ax
|
|
call syscall
|
|
end;
|
|
}
|
|
end;
|
|
|
|
procedure getverify(var verify:boolean);
|
|
|
|
begin
|
|
DosError := 0;
|
|
{! Do not use in OS/2.}
|
|
if os_mode in [osDOS,osDPMI] then
|
|
asm
|
|
movb $0x54,%ah
|
|
call syscall
|
|
movl verify,%edi
|
|
stosb
|
|
end;
|
|
end;
|
|
|
|
procedure setverify(verify:boolean);
|
|
|
|
begin
|
|
DosError := 0;
|
|
{! Do not use in OS/2!}
|
|
if os_mode in [osDOS,osDPMI] then
|
|
asm
|
|
movb verify,%al
|
|
movb $0x2e,%ah
|
|
call syscall
|
|
end;
|
|
end;
|
|
|
|
function DiskFree (Drive: byte): int64;
|
|
|
|
var FI: TFSinfo;
|
|
RC: longint;
|
|
|
|
begin
|
|
if (os_mode = osDOS) or (os_mode = osDPMI) then
|
|
{Function 36 is not supported in OS/2.}
|
|
asm
|
|
movb Drive,%dl
|
|
movb $0x36,%ah
|
|
call syscall
|
|
cmpw $-1,%ax
|
|
je .LDISKFREE1
|
|
mulw %cx
|
|
mulw %bx
|
|
shll $16,%edx
|
|
movw %ax,%dx
|
|
movl $0,%eax
|
|
xchgl %edx,%eax
|
|
leave
|
|
ret
|
|
.LDISKFREE1:
|
|
cltd
|
|
leave
|
|
ret
|
|
end
|
|
else
|
|
{In OS/2, we use the filesystem information.}
|
|
begin
|
|
RC := DosQueryFSInfo (Drive, 1, FI, SizeOf (FI));
|
|
if RC = 0 then
|
|
DiskFree := int64 (FI.Free_Clusters) *
|
|
int64 (FI.Sectors_Per_Cluster) * int64 (FI.Bytes_Per_Sector)
|
|
else
|
|
DiskFree := -1;
|
|
end;
|
|
end;
|
|
|
|
function DiskSize (Drive: byte): int64;
|
|
|
|
var FI: TFSinfo;
|
|
RC: longint;
|
|
|
|
begin
|
|
if (os_mode = osDOS) or (os_mode = osDPMI) then
|
|
{Function 36 is not supported in OS/2.}
|
|
asm
|
|
movb Drive,%dl
|
|
movb $0x36,%ah
|
|
call syscall
|
|
movw %dx,%bx
|
|
cmpw $-1,%ax
|
|
je .LDISKSIZE1
|
|
mulw %cx
|
|
mulw %bx
|
|
shll $16,%edx
|
|
movw %ax,%dx
|
|
movl $0,%eax
|
|
xchgl %edx,%eax
|
|
leave
|
|
ret
|
|
.LDISKSIZE1:
|
|
cltd
|
|
leave
|
|
ret
|
|
end
|
|
else
|
|
{In OS/2, we use the filesystem information.}
|
|
begin
|
|
RC := DosQueryFSinfo (Drive, 1, FI, SizeOf (FI));
|
|
if RC = 0 then
|
|
DiskSize := int64 (FI.Total_Clusters) *
|
|
int64 (FI.Sectors_Per_Cluster) * int64 (FI.Bytes_Per_Sector)
|
|
else
|
|
DiskSize := -1;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure SearchRec2DosSearchRec (var F: SearchRec);
|
|
|
|
const NameSize = 255;
|
|
|
|
var L, I: longint;
|
|
|
|
begin
|
|
if os_mode <> osOS2 then
|
|
begin
|
|
I := 1;
|
|
while (I <= SizeOf (LastSR))
|
|
and (PBA (@F)^ [I] = PBA (@LastSR)^ [I]) do Inc (I);
|
|
{ Raise "Invalid file handle" RTE if nested FindFirst calls were used. }
|
|
if I <= SizeOf (LastSR) then RunError (6);
|
|
l:=length(f.name);
|
|
for i:=1 to namesize do
|
|
f.name[i-1]:=f.name[i];
|
|
f.name[l]:=#0;
|
|
end;
|
|
end;
|
|
|
|
procedure DosSearchRec2SearchRec (var F: SearchRec);
|
|
|
|
const NameSize=255;
|
|
|
|
var L, I: longint;
|
|
|
|
type TRec = record
|
|
T, D: word;
|
|
end;
|
|
|
|
begin
|
|
if os_mode = osOS2 then with F do
|
|
begin
|
|
Name := FStat^.Name;
|
|
Size := FStat^.FileSize;
|
|
Attr := FStat^.AttrFile;
|
|
TRec (Time).T := FStat^.TimeLastWrite;
|
|
TRec (Time).D := FStat^.DateLastWrite;
|
|
end else
|
|
begin
|
|
for i:=0 to namesize do
|
|
if f.name[i]=#0 then
|
|
begin
|
|
l:=i;
|
|
break;
|
|
end;
|
|
for i:=namesize-1 downto 0 do
|
|
f.name[i+1]:=f.name[i];
|
|
f.name[0]:=char(l);
|
|
Move (F, LastSR, SizeOf (LastSR));
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure _findfirst(path:pchar;attr:word;var f:searchrec);
|
|
|
|
begin
|
|
asm
|
|
movl path,%edx
|
|
movw attr,%cx
|
|
{No need to set DTA in EMX. Just give a pointer in ESI.}
|
|
movl f,%esi
|
|
movb $0x4e,%ah
|
|
call syscall
|
|
jnc .LFF
|
|
movw %ax,doserror
|
|
.LFF:
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure FindFirst (const Path: PathStr; Attr: word; var F: SearchRec);
|
|
|
|
|
|
var path0: array[0..255] of char;
|
|
Count: longint;
|
|
|
|
begin
|
|
{No error.}
|
|
DosError := 0;
|
|
if os_mode = osOS2 then
|
|
begin
|
|
New (F.FStat);
|
|
F.Handle := $FFFFFFFF;
|
|
Count := 1;
|
|
DosError := DosFindFirst (Path, F.Handle, Attr, F.FStat,
|
|
SizeOf (F.FStat^), Count, ilStandard);
|
|
if (DosError = 0) and (Count = 0) then DosError := 18;
|
|
end else
|
|
begin
|
|
strPcopy(path0,path);
|
|
_findfirst(path0,attr,f);
|
|
end;
|
|
DosSearchRec2SearchRec (F);
|
|
end;
|
|
|
|
procedure _findnext(var f : searchrec);
|
|
|
|
begin
|
|
asm
|
|
movl f,%esi
|
|
movb $0x4f,%ah
|
|
call syscall
|
|
jnc .LFN
|
|
movw %ax,doserror
|
|
.LFN:
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure FindNext (var F: SearchRec);
|
|
var Count: longint;
|
|
|
|
|
|
begin
|
|
{No error}
|
|
DosError := 0;
|
|
SearchRec2DosSearchRec (F);
|
|
if os_mode = osOS2 then
|
|
begin
|
|
Count := 1;
|
|
DosError := DosFindNext (F.Handle, F.FStat, SizeOf (F.FStat^), Count);
|
|
if (DosError = 0) and (Count = 0) then DosError := 18;
|
|
end else _findnext (F);
|
|
DosSearchRec2SearchRec (F);
|
|
end;
|
|
|
|
procedure FindClose (var F: SearchRec);
|
|
begin
|
|
if os_mode = osOS2 then
|
|
begin
|
|
if F.Handle <> $FFFFFFFF then DosError := DosFindClose (F.Handle);
|
|
Dispose (F.FStat);
|
|
end;
|
|
end;
|
|
|
|
procedure swapvectors;
|
|
{For TP compatibility, this exists.}
|
|
begin
|
|
end;
|
|
|
|
type PPchar=^Pchar;
|
|
|
|
function envs:PPchar;assembler;
|
|
|
|
asm
|
|
movl envp,%eax
|
|
end ['EAX'];
|
|
|
|
function envcount:longint;assembler;
|
|
asm
|
|
movl envc,%eax
|
|
end ['EAX'];
|
|
|
|
function envstr(index : longint) : string;
|
|
|
|
var hp:Pchar;
|
|
|
|
begin
|
|
if (index<=0) or (index>envcount) then
|
|
begin
|
|
envstr:='';
|
|
exit;
|
|
end;
|
|
hp:=envs[index-1];
|
|
envstr:=strpas(hp);
|
|
end;
|
|
|
|
function getenv(const envvar : string) : string;
|
|
|
|
var hs,_envvar : string;
|
|
eqpos,i : longint;
|
|
|
|
begin
|
|
_envvar:=upcase(envvar);
|
|
getenv:='';
|
|
for i:=1 to envcount do
|
|
begin
|
|
hs:=envstr(i);
|
|
eqpos:=pos('=',hs);
|
|
if copy(hs,1,eqpos-1)=_envvar then
|
|
begin
|
|
getenv:=copy(hs,eqpos+1,length(hs)-eqpos);
|
|
exit;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure fsplit(path:pathstr;var dir:dirstr;var name:namestr;
|
|
var ext:extstr);
|
|
|
|
var p1,i : longint;
|
|
|
|
begin
|
|
{Get drive name}
|
|
p1:=pos(':',path);
|
|
if p1>0 then
|
|
begin
|
|
dir:=path[1]+':';
|
|
delete(path,1,p1);
|
|
end
|
|
else
|
|
dir:='';
|
|
{ split the path and the name, there are no more path informtions }
|
|
{ if path contains no backslashes }
|
|
while true do
|
|
begin
|
|
p1:=pos('\',path);
|
|
if p1=0 then
|
|
p1:=pos('/',path);
|
|
if p1=0 then
|
|
break;
|
|
dir:=dir+copy(path,1,p1);
|
|
delete(path,1,p1);
|
|
end;
|
|
{Try to find an extension.}
|
|
ext:='';
|
|
for i:=length(path) downto 1 do
|
|
if path[i]='.' then
|
|
begin
|
|
ext:=copy(path,i,high(extstr));
|
|
delete(path,i,length(path)-i+1);
|
|
break;
|
|
end;
|
|
name:=path;
|
|
end;
|
|
|
|
(*
|
|
function FExpand (const Path: PathStr): PathStr;
|
|
- declared in fexpand.inc
|
|
*)
|
|
|
|
{$DEFINE FPC_FEXPAND_UNC} (* UNC paths are supported *)
|
|
{$DEFINE FPC_FEXPAND_DRIVES} (* Full paths begin with drive specification *)
|
|
|
|
{$I fexpand.inc}
|
|
|
|
{$UNDEF FPC_FEXPAND_DRIVES}
|
|
{$UNDEF FPC_FEXPAND_UNC}
|
|
|
|
procedure packtime(var d:datetime;var time:longint);
|
|
|
|
var zs:longint;
|
|
|
|
begin
|
|
time:=-1980;
|
|
time:=time+d.year and 127;
|
|
time:=time shl 4;
|
|
time:=time+d.month;
|
|
time:=time shl 5;
|
|
time:=time+d.day;
|
|
time:=time shl 16;
|
|
zs:=d.hour;
|
|
zs:=zs shl 6;
|
|
zs:=zs+d.min;
|
|
zs:=zs shl 5;
|
|
zs:=zs+d.sec div 2;
|
|
time:=time+(zs and $ffff);
|
|
end;
|
|
|
|
procedure unpacktime (time:longint;var d:datetime);
|
|
|
|
begin
|
|
d.sec:=(time and 31) * 2;
|
|
time:=time shr 5;
|
|
d.min:=time and 63;
|
|
time:=time shr 6;
|
|
d.hour:=time and 31;
|
|
time:=time shr 5;
|
|
d.day:=time and 31;
|
|
time:=time shr 5;
|
|
d.month:=time and 15;
|
|
time:=time shr 4;
|
|
d.year:=time+1980;
|
|
end;
|
|
|
|
procedure getfattr(var f;var attr : word);
|
|
{ Under EMX, this routine requires }
|
|
{ the expanded path specification }
|
|
{ otherwise it will not function }
|
|
{ properly (CEC) }
|
|
var
|
|
path: pathstr;
|
|
buffer:array[0..255] of char;
|
|
begin
|
|
DosError := 0;
|
|
path:='';
|
|
path := StrPas(filerec(f).Name);
|
|
{ Takes care of slash and backslash support }
|
|
path:=FExPand(path);
|
|
move(path[1],buffer,length(path));
|
|
buffer[length(path)]:=#0;
|
|
asm
|
|
movw $0x4300,%ax
|
|
leal buffer,%edx
|
|
call syscall
|
|
jnc .Lnoerror { is there an error ? }
|
|
movw %ax,doserror
|
|
.Lnoerror:
|
|
movl attr,%ebx
|
|
movw %cx,(%ebx)
|
|
end;
|
|
end;
|
|
|
|
procedure setfattr(var f;attr : word);
|
|
{ Under EMX, this routine requires }
|
|
{ the expanded path specification }
|
|
{ otherwise it will not function }
|
|
{ properly (CEC) }
|
|
var
|
|
path: pathstr;
|
|
buffer:array[0..255] of char;
|
|
begin
|
|
path:='';
|
|
DosError := 0;
|
|
path := StrPas(filerec(f).Name);
|
|
{ Takes care of slash and backslash support }
|
|
path:=FExPand(path);
|
|
move(path[1],buffer,length(path));
|
|
buffer[length(path)]:=#0;
|
|
asm
|
|
movw $0x4301,%ax
|
|
leal buffer,%edx
|
|
movw attr,%cx
|
|
call syscall
|
|
jnc .Lnoerror
|
|
movw %ax,doserror
|
|
.Lnoerror:
|
|
end;
|
|
end;
|
|
|
|
|
|
|
|
procedure InitEnvironment;
|
|
var
|
|
cnt : integer;
|
|
ptr : pchar;
|
|
base : pchar;
|
|
i: integer;
|
|
tib : pprocessinfoblock;
|
|
begin
|
|
{ We need to setup the environment }
|
|
{ only in the case of OS/2 }
|
|
{ otherwise everything is in the stack }
|
|
if os_Mode in [OsDOS,osDPMI] then
|
|
exit;
|
|
cnt := 0;
|
|
{ count number of environment pointers }
|
|
dosgetinfoblocks(nil,@tib);
|
|
ptr := pchar(tib^.env);
|
|
{ stringz,stringz...,#0 }
|
|
i := 0;
|
|
repeat
|
|
repeat
|
|
(inc(i));
|
|
until (ptr[i] = #0);
|
|
inc(i);
|
|
{ here, it may be a double null, end of environment }
|
|
if ptr[i] <> #0 then
|
|
inc(cnt);
|
|
until (ptr[i] = #0);
|
|
{ save environment count }
|
|
envc := cnt;
|
|
{ got count of environment strings }
|
|
GetMem(envp, cnt*sizeof(pchar)+16384);
|
|
cnt := 0;
|
|
ptr := pchar(tib^.env);
|
|
i:=0;
|
|
repeat
|
|
envp[cnt] := ptr;
|
|
Inc(cnt);
|
|
{ go to next string ... }
|
|
repeat
|
|
inc(ptr);
|
|
until (ptr^ = #0);
|
|
inc(ptr);
|
|
until ptr^ = #0;
|
|
envp[cnt] := #0;
|
|
end;
|
|
|
|
|
|
procedure DoneEnvironment;
|
|
begin
|
|
{ it is allocated on the stack for DOS/DPMI }
|
|
if os_mode = osOs2 then
|
|
FreeMem(envp, envc*sizeof(pchar)+16384);
|
|
end;
|
|
|
|
var
|
|
oldexit : pointer;
|
|
|
|
|
|
begin
|
|
oldexit:=exitproc;
|
|
exitproc:=@doneenvironment;
|
|
InitEnvironment;
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.13 2001-06-13 22:21:53 hajny
|
|
+ platform specific information
|
|
|
|
Revision 1.12 2001/05/21 20:50:19 hajny
|
|
* silly mistyping corrected
|
|
|
|
Revision 1.11 2001/05/20 18:55:48 hajny
|
|
* merging Carl's fixes from the fixes branch
|
|
|
|
Revision 1.10 2001/04/10 18:49:40 hajny
|
|
* better check for FindClose
|
|
|
|
Revision 1.9 2001/03/11 18:58:42 hajny
|
|
* another Find* problem :-(
|
|
|
|
Revision 1.8 2001/03/10 09:57:51 hajny
|
|
* FExpand without IOResult change, remaining direct asm removed
|
|
|
|
Revision 1.7 2001/02/04 01:57:52 hajny
|
|
* direct asm removing
|
|
|
|
Revision 1.6 2000/11/06 20:35:05 hajny
|
|
* common FExpand introduced
|
|
|
|
Revision 1.5 2000/11/05 22:21:47 hajny
|
|
* more FExpand fixes
|
|
|
|
Revision 1.4 2000/10/28 16:58:34 hajny
|
|
* many FExpand fixes
|
|
|
|
Revision 1.3 2000/09/29 21:49:41 jonas
|
|
* removed warnings
|
|
|
|
Revision 1.2 2000/07/14 10:33:10 michael
|
|
+ Conditionals fixed
|
|
|
|
}
|