Netzwerkfreigabe - Problem mit Zugriffsrechten...

[Adversus]

Hi All !

Also ich benutze in meinem Programm folgende Funktion um Verzeichnisse um Ordner freizugeben...

Delphi-Quellcode:

const
SType_DiskTree = 0;
Access_Read = 1;
Access_All = 127;
Nerr_Success = 0;

type
TShareInfo2ExW = record
 shi2_NetName: PWideChar;
 shi2_Type: Longword;
 shi2_Remark: PWideChar;
 shi2_Permissions: Longword;
 shi2_Max_Uses: Longword;
 shi2_Current_Uses: Longword;
 shi2_Path: PWideChar;
 shi2_Passwd: PWideChar;
end;

TShareInfo2ExA= record
 shi2_NetName: PAnsiChar;
 shi2_Type: Longword;
 shi2_Remark: PAnsiChar;
 shi2_Permissions: Longword;
 shi2_Max_Uses: Longword;
 shi2_Current_Uses: Longword;
 shi2_Path: PAnsiChar;
 shi2_Passwd: PAnsiChar;
end;

type
TNetShareAddFunc = function (servername: PChar; level: Longword;
                             const buf: Pointer;
                             parm_err: PLongWord): LongWord; stdcall;

function ShareDirA(const ADir, AName, APassword: string; ReadOnly: Boolean): Boolean;
var
Info: TShareInfo2ExA;
Err: Longword;

Lib: THandle;
NetShareAddFunc: TNetShareAddFunc;
begin
Result:=False;
Lib:= LoadLibrary('Svrapi.dll');

if Lib <> 0 then
begin
  try
    @NetShareAddFunc:= GetProcAddress(Lib,'NetShareAdd');
    if @NetShareAddFunc <> nil then
    begin
       FillChar(Info, SizeOf(Info), 0);
       Info.shi2_netname := PAnsiChar(AName);
       Info.shi2_type := SType_DiskTree;
       Info.shi2_remark := nil;
       if ReadOnly then
         Info.shi2_permissions := Access_Read
       else
         Info.shi2_permissions := Access_All;
       Info.shi2_max_uses := LongWord(-1);
       Info.shi2_current_uses := 0;
       Info.shi2_path := PAnsiChar(ADir);
       Info.shi2_passwd := PAnsiChar(APassword);
       Result := NetShareAddFunc(nil, 2, @Info, @Err) = NERR_SUCCESS;
    end
    else
      RaiseLastOSError;
  finally
    FreeLibrary(Lib);
  end;
end;
end;

function ShareDirW(const ADir, AName, APassword: WideString; ReadOnly: Boolean): Boolean;
var
Info: TShareInfo2ExW;
Err: Longword;

Lib: THandle;
NetShareAddFunc: TNetShareAddFunc;
begin
Result:=False;
Lib:= LoadLibrary('Netapi32.dll');

if Lib <> 0 then
begin
  try
    @NetShareAddFunc:= GetProcAddress(Lib,'NetShareAdd');
    if @NetShareAddFunc <> nil then
    begin
     FillChar(Info, SizeOf(Info), 0);
     Info.shi2_netname := PWideChar(AName);
     Info.shi2_type := SType_DiskTree;
     Info.shi2_remark := nil;
     if ReadOnly then
       Info.shi2_permissions := Access_Read
     else
       Info.shi2_permissions := Access_All;
     Info.shi2_max_uses := LongWord(-1);
     Info.shi2_current_uses := 0;
     Info.shi2_path := PWideChar(ADir);
     Info.shi2_passwd := PWideChar(APassword);
     Result := NetShareAddFunc(nil, 2, @Info, @Err) = Nerr_Success;
    end
    else
      RaiseLastOSError;
  finally
    FreeLibrary(Lib);
  end;
end;
end;

function ShareDir(const ADir, AName, APassword: WideString; ReadOnly: Boolean): Boolean;
begin
if Win32Platform = VER_PLATFORM_WIN32_WINDOWS then
  Result := ShareDirA(ADir, AName, APassword, ReadOnly)
else
  Result := ShareDirW(ADir, AName, APassword, ReadOnly);
end;

Den Code hab ich von der dsdt.info. Das Problem ist nun das ich bei
ShareDir('C:\freigabe', 'Freigabe-Ordner', '', True) laut Windowsfreigabe
diesen Ordner trotzdem als veränderbar freigegeben hab...
Frage: Wo ist der Fehler ???

thx, Adversus

[Christian Seehase]

Moin Adversus,

die Doku sagt dazu folgendes:

Zitat von PSDK - SHARE_INFO_2 :

shi2_permissions
Specifies a DWORD value that indicates the shared resource's permissions for servers running with share-level security. A server running user-level security ignores this member. This member can be one or more of the following values. Calls to the NetShareSetInfo function ignore this member.
Note that the Windows Server 2003 family, Windows XP, Windows 2000, and Windows NT do not support share-level security.

[Adversus]

...also wenn ich dich richtig verstehe gibts gar keine möglichkeit das auf diese weise zu machen ?! Hat vielleicht jemand ne idee wie man das anders machen könnte ????