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fpc/rtl/dos/dos.pp

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{
$Id$
This file is part of the Free Pascal run time library.
Copyright (c) 1993,97 by the Free Pascal development team.
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.
**********************************************************************}
{ to be able to cross compile from v1 to v2 }
{$I os.inc}
{
History:
2.7.1994: Version 0.2
Datenstrukturen sind deklariert sowie
50 % der Unterprogramme sind implementiert
12.8.1994: exec implemented
14.8.1994: findfirst and findnext implemented
24.8.1994: Version 0.3
28.2.1995: Version 0.31
some parameter lists with const optimized
3.7.1996: bug in fsplit removed (dir and ext were not intializised)
7.7.1996: packtime and unpacktime implemented
20.9.1996: Version 0.5
setftime and getftime implemented
some optimizations done (integer -> longint)
procedure fsearch from the LINUX version ported
msdos call implemented
26th november 1996:
better fexpand
29th january 1997:
bug in getftime and setftime removed
setfattr and getfattr added
2th february 1997: Version 0.9
bug of searchrec corrected
30th may 1997:
bug in fsplit fixed (thanks to Pierre Muller):
If you have a relative path as argument
fsplit gives a wrong result because it
first tries to find the extension by searching the first
occurence of '.'.
The file extension should be tested last !!
15th june 1997:
versions for go32v1 and go32v2 merged
september 1997:
removed some bugs for go32v2
- searchrec structure is different (direct dos call !!)
27th november 1997:
bug in findfirst fixed esp was instead of ebp used
}
{$ifndef GO32V2}
{$ifdef DOS}
{$define GO32V1}
{$endif DOS}
{$endif not GO32V2}
unit dos;
interface
uses
strings
{$ifdef GO32V2}
,go32
{$endif GO32V2}
;
const
{ bit masks for CPU flags}
fcarry = $0001;
fparity = $0004;
fauxiliary = $0010;
fzero = $0040;
fsign = $0080;
foverflow = $0800;
{ bit masks for file attributes }
readonly = $01;
hidden = $02;
sysfile = $04;
volumeid = $08;
directory = $10;
archive = $20;
anyfile = $3F;
fmclosed = $D7B0;
fminput = $D7B1;
fmoutput = $D7B2;
fminout = $D7B3;
type
{ some string types }
comstr = string[127]; { command line string }
pathstr = string[79]; { string for a file path }
dirstr = string[67]; { string for a directory }
namestr = string[8]; { string for a file name }
extstr = string[4]; { string for an extension }
{ search record which is used by findfirst and findnext }
{$ifndef GO32V2}
{$PACKRECORDS 1}
searchrec = record
fill : array[1..21] of byte;
attr : byte;
time : longint;
reserved : word; { requires the DOS extender (DJ GNU-C) }
size : longint;
name : string[15]; { the same size as declared by (DJ GNU C) }
end;
{$else GO32V2}
{$PACKRECORDS 1}
searchrec = record
fill : array[1..21] of byte;
attr : byte;
time : longint;
{ reserved : word; not in DJGPP V2 }
size : longint;
name : string[12]; { the same size as declared by (DJ GNU C) }
end;
{$endif GO32V2}
{$PACKRECORDS 2}
{ file record for untyped files comes from filerec.inc}
{$i filerec.inc}
{ file record for text files comes from textrec.inc}
{$i textrec.inc}
{$ifdef GO32V1}
{ data structure for the registers needed by msdos and intr }
{ Go32 V2 follows trealregs of go32 }
registers = record
case i : integer of
0 : (ax,f1,bx,f2,cx,f3,dx,f4,bp,f5,si,f51,di,f6,ds,f7,es,f8,flags,fs,gs : word);
1 : (al,ah,f9,f10,bl,bh,f11,f12,cl,ch,f13,f14,dl,dh : byte);
2 : (eax, ebx, ecx, edx, ebp, esi, edi : longint);
end;
{$endif GO32V1}
{$ifdef GO32V2}
{ data structure for the registers needed by msdos and intr }
{ Go32 V2 follows trealregs of go32 }
registers = go32.registers;
{$endif GO32V2}
{$PACKRECORDS 1}
{ record for date and time }
datetime = record
year,month,day,hour,min,sec : word;
end;
var
{ error variable }
doserror : integer;
procedure getdate(var year,month,day,dayofweek : word);
procedure gettime(var hour,minute,second,sec100 : word);
function dosversion : word;
procedure setdate(year,month,day : word);
procedure settime(hour,minute,second,sec100 : word);
procedure getcbreak(var breakvalue : boolean);
procedure setcbreak(breakvalue : boolean);
procedure getverify(var verify : boolean);
procedure setverify(verify : boolean);
function diskfree(drive : byte) : longint;
function disksize(drive : byte) : longint;
procedure findfirst(const path : pathstr;attr : word;var f : searchRec);
procedure findnext(var f : searchRec);
{ is a dummy for go32v1 not for go32v2 }
procedure swapvectors;
{ not supported:
procedure getintvec(intno : byte;var vector : pointer);
procedure setintvec(intno : byte;vector : pointer);
procedure keep(exitcode : word);
}
procedure msdos(var regs : registers);
procedure intr(intno : byte;var regs : registers);
procedure getfattr(var f;var attr : word);
procedure setfattr(var f;attr : word);
function fsearch(const path : pathstr;dirlist : string) : pathstr;
procedure getftime(var f;var time : longint);
procedure setftime(var f;time : longint);
procedure packtime (var d: datetime; var time: longint);
procedure unpacktime (time: longint; var d: datetime);
function fexpand(const path : pathstr) : pathstr;
procedure fsplit(path : pathstr;var dir : dirstr;var name : namestr;
var ext : extstr);
procedure exec(const path : pathstr;const comline : comstr);
function dosexitcode : word;
function envcount : longint;
function envstr(index : longint) : string;
function getenv(const envvar : string): string;
implementation
var
dosregs : registers;
{ this was first written for the LINUX version, }
{ by Michael Van Canneyt but it works also }
{ for the DOS version (I hope so) }
function fsearch(const path : pathstr;dirlist : string) : pathstr;
var
newdir : pathstr;
i,p1 : byte;
s : searchrec;
begin
if (pos('?',path)<>0) or (pos('*',path)<>0) then
{ No wildcards allowed in these things }
fsearch:=''
else
begin
{ allow slash as backslash }
for i:=1 to length(dirlist) do
if dirlist[i]='/' then dirlist[i]:='\';
repeat
{ get first path }
p1:=pos(';',dirlist);
if p1>0 then
begin
newdir:=copy(dirlist,1,p1-1);
delete(dirlist,1,p1)
end
else
begin
newdir:=dirlist;
dirlist:=''
end;
if (newdir[length(newdir)]<>'\') and
(newdir[length(newdir)]<>':') then
newdir:=newdir+'\';
findfirst(newdir+path,anyfile,s);
if doserror=0 then
begin
{ this should be newdir:=newdir+path
because path can contain a path part !! }
{newdir:=newdir+s.name;}
newdir:=newdir+path;
{ this was for LINUX:
if pos('.\',newdir)=1 then
delete(newdir, 1, 2)
DOS strips off an initial .\
}
end
else newdir:='';
until(dirlist='') or (length(newdir)>0);
fsearch:=newdir;
end;
end;
procedure getftime(var f;var time : longint);
begin
dosregs.bx:=textrec(f).handle;
dosregs.ax:=$5700;
msdos(dosregs);
time:=(dosregs.dx shl 16)+dosregs.cx;
doserror:=dosregs.al;
end;
procedure setftime(var f;time : longint);
begin
dosregs.bx:=textrec(f).handle;
dosregs.ecx:=time;
dosregs.ax:=$5701;
msdos(dosregs);
doserror:=dosregs.al;
end;
procedure msdos(var regs : registers);
begin
intr($21,regs);
end;
{$ifdef GO32V2}
procedure intr(intno : byte;var regs : registers);
begin
realintr(intno,regs);
end;
{$else GO32V2}
procedure intr(intno : byte;var regs : registers);
begin
asm
.data
int86:
.byte 0xcd
int86_vec:
.byte 0x03
jmp int86_retjmp
.text
movl 8(%ebp),%eax
movb %al,int86_vec
movl 10(%ebp),%eax
// do not use first int
addl $2,%eax
movl 4(%eax),%ebx
movl 8(%eax),%ecx
movl 12(%eax),%edx
movl 16(%eax),%ebp
movl 20(%eax),%esi
movl 24(%eax),%edi
movl (%eax),%eax
jmp int86
int86_retjmp:
pushf
pushl %ebp
pushl %eax
movl %esp,%ebp
// calc EBP new
addl $12,%ebp
movl 10(%ebp),%eax
// do not use first int
addl $2,%eax
popl (%eax)
movl %ebx,4(%eax)
movl %ecx,8(%eax)
movl %edx,12(%eax)
// restore EBP
popl %edx
movl %edx,16(%eax)
movl %esi,20(%eax)
movl %edi,24(%eax)
// ignore ES and DS
popl %ebx /* flags */
movl %ebx,32(%eax)
// FS and GS too
end;
end;
{$endif GO32V2}
var
lastdosexitcode : word;
{$ifdef GO32V2}
{ this code is just the most basic part of dosexec.c from
the djgpp code }
procedure exec(const path : pathstr;const comline : comstr);
procedure do_system(p,c : string);
{
Table 0931
Format of EXEC parameter block for AL=00h,01h,04h:
Offset Size Description
00h WORD segment of environment to copy for child process (copy caller's
environment if 0000h)
this does not seem to work (PM)
02h DWORD pointer to command tail to be copied into child's PSP
06h DWORD pointer to first FCB to be copied into child's PSP
0Ah DWORD pointer to second FCB to be copied into child's PSP
0Eh DWORD (AL=01h) will hold subprogram's initial SS:SP on return
12h DWORD (AL=01h) will hold entry point (CS:IP) on return
INT 21 4B--
Copied from Ralf Brown's Interrupt List
}
type
realptr = record
ofs,seg : word;
end;
texecblock = record
envseg : word;
comtail : realptr;
firstFCB : realptr;
secondFCB : realptr;
iniStack : realptr;
iniCSIP : realptr;
end;
var current_dos_buffer_pos : longint;
function paste_to_dos(src : string) : boolean;
var c : array[0..255] of char;
begin
paste_to_dos:=false;
if current_dos_buffer_pos+length(src)+1>transfer_buffer+tb_size then
begin
doserror:=200;{ what value should we use here ? }
exit;
end;
move(src[1],c[0],length(src));
c[length(src)]:=#0;
seg_move(get_ds,longint(@c),dosmemselector,current_dos_buffer_pos,length(src)+1);
current_dos_buffer_pos:=current_dos_buffer_pos+length(src)+1;
paste_to_dos:=true;
end;
var
i,la_env,la_p,la_c,la_e,fcb1_la,fcb2_la : longint;
arg_ofs : longint;
execblock : texecblock;
begin
la_env:=transfer_buffer;
while (la_env mod 16)<>0 do inc(la_env);
current_dos_buffer_pos:=la_env;
for i:=1 to envcount do
begin
paste_to_dos(envstr(i));
end;
paste_to_dos(''); { adds a double zero at the end }
{ allow slash as backslash }
for i:=1 to length(p) do
if p[i]='/' then p[i]:='\';
la_p:=current_dos_buffer_pos;
paste_to_dos(p);
la_c:=current_dos_buffer_pos;
paste_to_dos(c);
la_e:=current_dos_buffer_pos;
fcb1_la:=la_e;
la_e:=la_e+16;
fcb2_la:=la_e;
la_e:=la_e+16;
{ allocate FCB see dosexec code }
dosregs.ax:=$2901;
arg_ofs:=1;
while (c[arg_ofs]=' ') or (c[arg_ofs]=#9) do inc(arg_ofs);
dosregs.ds:=(la_c+arg_ofs) div 16;
dosregs.si:=(la_c+arg_ofs) mod 16;
dosregs.es:=fcb1_la div 16;
dosregs.di:=fcb1_la mod 16;
msdos(dosregs);
repeat
inc(arg_ofs);
until (c[arg_ofs]=' ') or
(c[arg_ofs]=#9) or
(c[arg_ofs]=#13);
if c[arg_ofs]<>#13 then
begin
inc(arg_ofs);
while (c[arg_ofs]=' ') or (c[arg_ofs]=#9) do inc(arg_ofs);
end;
{ allocate second FCB see dosexec code }
dosregs.ax:=$2901;
dosregs.ds:=(la_c+arg_ofs) div 16;
dosregs.si:=(la_c+arg_ofs) mod 16;
dosregs.es:=fcb2_la div 16;
dosregs.di:=fcb2_la mod 16;
msdos(dosregs);
with execblock do
begin
envseg:=la_env div 16;
comtail.seg:=la_c div 16;
comtail.ofs:=la_c mod 16;
firstFCB.seg:=fcb1_la div 16;
firstFCB.ofs:=fcb1_la mod 16;
secondFCB.seg:=fcb2_la div 16;
secondFCB.ofs:=fcb2_la mod 16;
end;
seg_move(get_ds,longint(@execblock),dosmemselector,la_e,sizeof(texecblock));
dosregs.edx:=la_p mod 16;
dosregs.ds:=la_p div 16;
dosregs.ebx:=la_e mod 16;
dosregs.es:=la_e div 16;
dosregs.ax:=$4b00;
msdos(dosregs);
if (dosregs.flags and 1) <> 0 then
begin
doserror:=dosregs.ax;
lastdosexitcode:=0;
exit;
end
else
begin
dosregs.ax:=$4d00;
msdos(dosregs);
lastdosexitcode:=dosregs.al;
end;
end;
{ var
p,c : array[0..255] of char; }
var c : string;
begin
doserror:=0;
{ move(path[1],p,length(path));
p[length(path)]:=#0; }
move(comline[0],c[1],length(comline)+1);
c[length(comline)+2]:=#13;
c[0]:=char(length(comline)+2);
do_system(path,c);
end;
{$else GO32V2}
procedure exec(const path : pathstr;const comline : comstr);
procedure do_system(p : pchar);
begin
asm
movl 12(%ebp),%ebx
movw $0xff07,%ax
int $0x21
movw %ax,_LASTDOSEXITCODE
end;
end;
var
i : longint;
execute : string;
b : array[0..255] of char;
begin
doserror:=0;
execute:=path+' '+comline;
{ allow slash as backslash for the program name only }
for i:=1 to length(path) do
if execute[i]='/' then execute[i]:='\';
move(execute[1],b,length(execute));
b[length(execute)]:=#0;
do_system(b);
end;
{$endif GO32V2}
function dosexitcode : word;
begin
dosexitcode:=lastdosexitcode;
end;
function dosversion : word;
begin
dosregs.ax:=$3000;
msdos(dosregs);
dosversion:=dosregs.ax;
end;
procedure getdate(var year,month,day,dayofweek : word);
begin
dosregs.ax:=$2a00;
msdos(dosregs);
dayofweek:=dosregs.al;
year:=dosregs.cx;
month:=dosregs.dh;
day:=dosregs.dl;
end;
procedure setdate(year,month,day : word);
begin
dosregs.cx:=year;
dosregs.dx:=month*$100+day;
dosregs.ah:=$2b;
msdos(dosregs);
doserror:=dosregs.al;
end;
procedure gettime(var hour,minute,second,sec100 : word);
begin
dosregs.ah:=$2c;
msdos(dosregs);
hour:=dosregs.ch;
minute:=dosregs.cl;
second:=dosregs.dh;
sec100:=dosregs.dl;
end;
procedure settime(hour,minute,second,sec100 : word);
begin
dosregs.cx:=hour*$100+minute;
dosregs.dx:=second*$100+sec100;
dosregs.ah:=$2d;
msdos(dosregs);
doserror:=dosregs.al;
end;
procedure getcbreak(var breakvalue : boolean);
begin
dosregs.ax:=$3300;
msdos(dosregs);
breakvalue:=dosregs.dl<>0;
end;
procedure setcbreak(breakvalue : boolean);
begin
dosregs.ax:=$3301;
dosregs.dl:=ord(breakvalue);
msdos(dosregs);
end;
procedure getverify(var verify : boolean);
begin
dosregs.ah:=$54;
msdos(dosregs);
verify:=dosregs.al<>0;
end;
procedure setverify(verify : boolean);
begin
dosregs.ah:=$2e;
dosregs.al:=ord(verify);
msdos(dosregs);
end;
function diskfree(drive : byte) : longint;
begin
dosregs.dl:=drive;
dosregs.ah:=$36;
msdos(dosregs);
if dosregs.ax<>$FFFF then
begin
diskfree:=dosregs.ax;
diskfree:=diskfree*dosregs.bx;
diskfree:=diskfree*dosregs.cx;
end
else
diskfree:=-1;
end;
function disksize(drive : byte) : longint;
begin
dosregs.dl:=drive;
dosregs.ah:=$36;
msdos(dosregs);
if dosregs.ax<>$FFFF then
begin
disksize:=dosregs.ax;
disksize:=disksize*dosregs.cx;
disksize:=disksize*dosregs.dx;
end
else
disksize:=-1;
end;
procedure searchrec2dossearchrec(var f : searchrec);
var
l,i : longint;
begin
l:=length(f.name);
for i:=1 to 12 do
f.name[i-1]:=f.name[i];
f.name[l]:=#0;
end;
procedure dossearchrec2searchrec(var f : searchrec);
var
l,i : longint;
begin
l:=12;
for i:=0 to 12 do
if f.name[i]=#0 then
begin
l:=i;
break;
end;
for i:=11 downto 0 do
f.name[i+1]:=f.name[i];
f.name[0]:=chr(l);
end;
procedure findfirst(const path : pathstr;attr : word;var f : searchRec);
{$ifdef GO32V2}
procedure _findfirst(path : pchar;attr : word;var f : searchrec);
var
i : longint;
begin
{ allow slash as backslash }
for i:=0 to strlen(path) do
if path[i]='/' then path[i]:='\';
copytodos(f,sizeof(searchrec));
dosregs.edx:=transfer_buffer mod 16;
dosregs.ds:=transfer_buffer div 16;
dosregs.ah:=$1a;
msdos(dosregs);
dosregs.ecx:=attr;
dosregs.edx:=(transfer_buffer mod 16) + Sizeof(searchrec)+1;
dosmemput(transfer_buffer div 16,
(transfer_buffer mod 16) +Sizeof(searchrec)+1,path^,strlen(path)+1);
dosregs.ds:=transfer_buffer div 16;
dosregs.ah:=$4e;
msdos(dosregs);
copyfromdos(f,sizeof(searchrec));
if dosregs.flags and carryflag<>0 then
doserror:=dosregs.ax;
end;
{$else GO32V2}
procedure _findfirst(path : pchar;attr : word;var f : searchrec);
var
i : longint;
begin
{ allow slash as backslash }
for i:=0 to strlen(path) do
if path[i]='/' then path[i]:='\';
asm
movl 18(%ebp),%edx
movb $0x1a,%ah
int $0x21
movl 12(%ebp),%edx
movzwl 16(%ebp),%ecx
movb $0x4e,%ah
int $0x21
jnc .LFF
movw %ax,U_DOS_DOSERROR
.LFF:
end;
end;
{$endif GO32V2}
var
path0 : array[0..80] of char;
begin
{ no error }
doserror:=0;
strpcopy(path0,path);
_findfirst(path0,attr,f);
dossearchrec2searchrec(f);
end;
procedure findnext(var f : searchRec);
{$ifdef GO32V2}
procedure _findnext(var f : searchrec);
begin
copytodos(f,sizeof(searchrec));
dosregs.edx:=transfer_buffer mod 16;
dosregs.ds:=transfer_buffer div 16;
dosregs.ah:=$1a;
msdos(dosregs);
dosregs.ah:=$4f;
msdos(dosregs);
copyfromdos(f,sizeof(searchrec));
if dosregs.flags and carryflag <> 0 then
doserror:=dosregs.ax;
end;
{$else GO32V2}
procedure _findnext(var f : searchrec);
begin
asm
movl 12(%ebp),%edx
movb $0x1a,%ah
int $0x21
movb $0x4f,%ah
int $0x21
jnc .LFN
movw %ax,U_DOS_DOSERROR
.LFN:
end;
end;
{$endif GO32V2}
begin
{ no error }
doserror:=0;
searchrec2dossearchrec(f);
_findnext(f);
dossearchrec2searchrec(f);
end;
procedure swapvectors;
{$ifdef go32v2}
{ uses four global symbols from v2prt0.as
to be able to know the current exception state
without using dpmiexcp unit }
begin
asm
movl _exception_exit,%eax
orl %eax,%eax
je .Lno_excep
movl _v2prt0_exceptions_on,%eax
orl %eax,%eax
je .Lexceptions_off
movl _swap_out,%eax
call *%eax
jmp .Lno_excep
.Lexceptions_off:
movl _swap_in,%eax
call *%eax
.Lno_excep:
end;
end;
{$else not go32v2}
begin
{ only a dummy }
end;
{$endif go32v2}
function envcount : longint;
var
hp : ppchar;
begin
hp:=environ;
envcount:=0;
while assigned(hp^) do
begin
{ not the best solution, but quite understandable }
inc(envcount);
hp:=hp+4;
end;
end;
function envstr(index : longint) : string;
var
hp : ppchar;
begin
if (index<=0) or (index>envcount) then
begin
envstr:='';
exit;
end;
hp:=environ+4*(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 : byte;
i : longint;
begin
{ allow slash as backslash }
for i:=1 to length(path) do
if path[i]='/' then path[i]:='\';
{ 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
break;
dir:=dir+copy(path,1,p1);
delete(path,1,p1);
end;
{ try to find out a extension }
p1:=pos('.',path);
if p1>0 then
begin
ext:=copy(path,p1,4);
delete(path,p1,length(path)-p1+1);
end
else
ext:='';
name:=path;
end;
function fexpand(const path : pathstr) : pathstr;
var
s,pa : string[79];
i,j : byte;
begin
getdir(0,s);
pa:=upcase(path);
{ allow slash as backslash }
for i:=1 to length(pa) do
if pa[i]='/' then pa[i]:='\';
if (ord(pa[0])>1) and (((pa[1]>='A') and (pa[1]<='Z')) and (pa[2]=':')) then
begin
{ we must get the right directory }
getdir(ord(pa[1])-ord('A')+1,s);
if (ord(pa[0])>2) and (pa[3]<>'\') then
if pa[1]=s[1] then
pa:=s+'\'+copy (pa,3,length(pa))
else
pa:=pa[1]+':\'+copy (pa,3,length(pa))
end
else
if pa[1]='\' then
pa:=s[1]+':'+pa
else if s[0]=#3 then
pa:=s+pa
else
pa:=s+'\'+pa;
{First remove all references to '\.\'}
while pos ('\.\',pa)<>0 do
delete (pa,pos('\.\',pa),2);
{Now remove also all references to '\..\' + of course previous dirs..}
repeat
i:=pos('\..\',pa);
if i<>0 then j:=i-1;
while (j>1) and (pa[j]<>'\') do
dec (j);
delete (pa,j,i-j+3);
until i=0;
{Remove End . and \}
if (length(pa)>0) and (pa[length(pa)]='.') then
dec(byte(pa[0]));
if (length(pa)>0) and (pa[length(pa)]='\') then
dec(byte(pa[0]));
fexpand:=pa;
end;
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 $ffff);
end;
procedure unpacktime (time: longint; var d: datetime);
begin
d.sec:=(time and 31) * 2;
time:=time shr 5;
d.min:=time and 63;
time:=time shr 6;
d.hour:=time and 31;
time:=time shr 5;
d.day:=time and 31;
time:=time shr 5;
d.month:=time and 15;
time:=time shr 4;
d.year:=time + 1980;
end;
{$ifdef GO32V2}
procedure getfattr(var f;var attr : word);
var
r : registers;
begin
copytodos(filerec(f).name,strlen(filerec(f).name)+1);
r.ax:=$4300;
r.edx:=transfer_buffer mod 16;
r.ds:=transfer_buffer div 16;
msdos(r);
if (r.flags and carryflag) <> 0 then
doserror:=r.ax;
attr:=r.cx;
end;
procedure setfattr(var f;attr : word);
var
r : registers;
begin
copytodos(filerec(f).name,strlen(filerec(f).name)+1);
r.ax:=$4301;
r.edx:=transfer_buffer mod 16;
r.ds:=transfer_buffer div 16;
r.cx:=attr;
msdos(r);
if (r.flags and carryflag) <> 0 then
doserror:=r.ax;
end;
{$else GO32V2}
procedure getfattr(var f;var attr : word);
var
{ to avoid problems }
n : array[0..255] of char;
r : registers;
begin
strpcopy(n,filerec(f).name);
r.ax:=$4300;
r.edx:=longint(@n);
msdos(r);
attr:=r.cx;
end;
procedure setfattr(var f;attr : word);
var
{ to avoid problems }
n : array[0..255] of char;
r : registers;
begin
strpcopy(n,filerec(f).name);
r.ax:=$4301;
r.edx:=longint(@n);
r.cx:=attr;
msdos(r);
end;
{$endif GO32V2}
end.
{
$Log$
Revision 1.2 1998-03-26 12:23:49 peter
* envrion is now the same for go32v1 and go32v2
Revision 1.1.1.1 1998/03/25 11:18:41 root
* Restored version
Revision 1.10 1998/03/12 04:02:32 carl
* bugfix of Range Check error in FExpand
Revision 1.9 1998/02/05 12:08:48 pierre
* added packrecords to about dword alignment
for structures used in dos calls
Revision 1.8 1998/02/03 15:52:41 pierre
* swapvectors really disable exception handling
and interrupt redirection with go32v2
* in dos.pp bug if arg path from fsearch had a directory part fixed
Revision 1.7 1998/01/26 11:56:22 michael
+ Added log at the end
Working file: rtl/dos/dos.pp
description:
----------------------------
revision 1.6
date: 1998/01/16 00:04:58; author: michael; state: Exp; lines: +17 -18
Added some fixes of Peter Vreman
----------------------------
revision 1.5
date: 1997/12/22 10:22:05; author: pierre; state: Exp; lines: +2 -2
* bug in disksize corrected (thanks to Papai Andras)
----------------------------
revision 1.4
date: 1997/12/12 13:17:15; author: florian; state: Exp; lines: +3 -2
dos.doserror wasn't set to zero in dos.exec (go32v2)
----------------------------
revision 1.3
date: 1997/12/01 12:15:45; author: michael; state: Exp; lines: +12 -5
+ added copyright reference in header.
----------------------------
revision 1.2
date: 1997/11/27 22:49:03; author: florian; state: Exp; lines: +6 -5
- CPU.PP added
- some bugs in DOS fixed (espsecially for go32v1)
- the win32 system unit is now compilable
----------------------------
revision 1.1
date: 1997/11/27 08:33:49; author: michael; state: Exp;
Initial revision
----------------------------
revision 1.1.1.1
date: 1997/11/27 08:33:49; author: michael; state: Exp; lines: +0 -0
FPC RTL CVS start
=============================================================================
}
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