在WIN2000与WIN98中创建共享文件夹的方法
在去年写的‘使用SQLSERVER的扩展存储过程实现远程备份与恢复（http://www.csdn.net/Develop/read_article.asp?id=21304）’一文中许多人都提到如何在程序中创建共享文件夹的问题，我当时因为工作忙，只看到了留言没有及时去回复，对读者造成的不便深感抱歉。在此文中，我就把如何在WIN2000与WIN98中创建共享文件夹的代码一一列出（包括相关的一系列网络函数等），以慰大家。unit PubLib;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
Menus, ComCtrls, ToolWin, Db, ADODB, DBCtrls, StdCtrls,Math,dbgrids,
Buttons, ExtCtrls,clipbrd,Registry, variants;
const
NTlib= 'NETAPI32.DLL';
MElib= 'SVRAPI.DLL';
{共享类型}
STYPE_DISKTREE = 0 ;
STYPE_PRINTQ = 1 ;
STYPE_DEVICE = 2 ;
STYPE_IPC = 3 ;
{访问权限}
ACCESS_READ = 0 ;
ACCESS_WRITE = 1 ;
ACCESS_CREATE = 2 ;
ACCESS_EXEC = 3 ;
ACCESS_DELETE = 4 ;
ACCESS_ALL = 7 ;
type
NET_API_STATUS = DWORD;
//纪录类型声明，注意参数类型的正确对应，最好别看 delphi 的帮助，引起误导
TSHARE_INFO_502 = record
shi502_netname: PWideChar;
shi502_type: DWORD;
shi502_remark: PWideChar;
shi502_permissions: DWORD;
shi502_max_uses: DWORD;
shi502_current_uses: DWORD;
shi502_path: PWideChar;
shi502_passwd: PWideChar;
shi502_reserved: DWORD;
shi502_security_descriptor: PSECURITY_DESCRIPTOR;
end;
Share_Info50 = packed record
shi50_netname : array of Char; {13}
shi50_type : Byte;
shi50_flags : Word;
shi50_remark: PChar;
shi50_path : PChar;
shi50_rw_password : array of Char; {9}
shi50_ro_password : array of Char;
end;
//******************************************网络函数********************
function IsWinNT: Boolean;//判断是否NT系统
function GetPDCName: string; //取得主域控制器名称
function GetDomainName: AnsiString; //获取域名
//建立、删除共享文件夹
//for win2000,winnt
function AppendShareResource(ServerName,FilePath,NetName, Remark : string): Integer;
function DeleteShareResource(ServerName: string; NetName: string): Integer;
//for win98
function AddShareResource (ServerName : PChar; FilePath : PChar;
NetName : PChar; Remark : PChar ) : Integer;
function DelShareResource(ServerName: string; NetName: string): Integer;
var NTNetGetDCName : function(Server, Domain: pWideChar; var DC: pWideChar): NET_API_STATUS; StdCall; NTNetApiBufferFree: function(lpBuffer: Pointer):NET_API_STATUS; StdCall; NTNetShareAdd : function (servername:Widestring; level: DWORD; Buf: PBYTE; var parm_err: PDWORD ): DWORD; stdcall;//建立共享目录函数 NTNetShareDel : function (ServerName:Widestring; NetName: Widestring; Reserved: DWord): Integer; stdcall; //撤销共享目录函数 MENetShareAdd : function (ServerName : PChar; ShareLevel : SmallInt; Buffer : Pointer; Size : Word) : Integer; StdCall; MENetShareDel : function (ServerName : PChar; NetName : PChar; Reserved : Word) : Integer; StdCall;
implementation
function IsWinNT: Boolean;
var
VersionInfo: TOSVersionInfo;
begin
VersionInfo.dwOSVersionInfoSize := SizeOf(TOSVersionInfo);
Result := GetVersionEx(VersionInfo);
if Result then
Result := VersionInfo.dwPlatformID = VER_PLATFORM_WIN32_NT;
end;
function GetPDCName: string;
var
pDomain : PWideChar;
LibHandle : THandle;
begin
Result := '';
LibHandle := LoadLibrary(NTlib);
if LibHandle = 0 then
raise Exception.Create('Unable to map library: ' + NTlib);
try
@NTNetGetDCName := GetProcAddress(Libhandle, 'NetGetDCName');
@NTNetApiBufferFree := GetProcAddress(Libhandle, 'NetApiBufferFree');
try
if NTNetGetDCName(nil, nil, pDomain) = 0 then
Result := WideCharToString(pDomain);
finally
NTNetApiBufferFree(pDomain);
end;
finally
FreeLibrary(Libhandle);
end;
end;
function GetDomainName: AnsiString;
type
WKSTA_INFO_100 = record
wki100_platform_id: Integer;
wki100_computername: PWideChar;
wki100_langroup: PWideChar;
wki100_ver_major: Integer;
wki100_ver_minor: Integer;
end;
WKSTA_USER_INFO_1 = record
wkui1_username: PChar;
wkui1_logon_domain: PChar;
wkui1_logon_server: PChar;
wkui1_oth_domains: PChar;
end;
type
//Win9X ANSI prototypes from RADMIN32.DLL and RLOCAL32.DLL
TWin95_NetUserGetInfo = function(ServerName, UserName: PChar; Level: DWORD; var
BfrPtr: Pointer): Integer;
stdcall;
TWin95_NetApiBufferFree = function(BufPtr: Pointer): Integer;
stdcall;
TWin95_NetWkstaUserGetInfo = function(Reserved: PChar; Level: Integer; var
BufPtr: Pointer): Integer;
stdcall;
//WinNT UNICODE equivalents from NETAPI32.DLL
TWinNT_NetWkstaGetInfo = function(ServerName: PWideChar; level: Integer; var
BufPtr: Pointer): Integer;
stdcall;
TWinNT_NetApiBufferFree = function(BufPtr: Pointer): Integer;
stdcall;
var
Win95_NetUserGetInfo: TWin95_NetUserGetInfo;
Win95_NetWkstaUserGetInfo: TWin95_NetWkstaUserGetInfo;
Win95_NetApiBufferFree: TWin95_NetApiBufferFree;
WinNT_NetWkstaGetInfo: TWinNT_NetWkstaGetInfo;
WinNT_NetApiBufferFree: TWinNT_NetApiBufferFree;
WSNT: ^WKSTA_INFO_100;
WS95: ^WKSTA_USER_INFO_1;
EC: DWORD;
hNETAPI: THandle;
begin
try
Result := '';
if IsWinNT then
begin
hNETAPI := LoadLibrary('NETAPI32.DLL');
if hNETAPI <> 0 then
begin @WinNT_NetWkstaGetInfo := GetProcAddress(hNETAPI, 'NetWkstaGetInfo');
@WinNT_NetApiBufferFree:= GetProcAddress(hNETAPI, 'NetApiBufferFree');
EC := WinNT_NetWkstaGetInfo(nil, 100, Pointer(WSNT));
if EC = 0 then
begin
Result := WideCharToString(WSNT^.wki100_langroup);
WinNT_NetApiBufferFree(Pointer(WSNT));
end;
end;
end
else
begin
hNETAPI := LoadLibrary('RADMIN32.DLL');
if hNETAPI <> 0 then
begin @Win95_NetApiBufferFree := GetProcAddress(hNETAPI, 'NetApiBufferFree');
@Win95_NetUserGetInfo := GetProcAddress(hNETAPI, 'NetUserGetInfoA');
EC := Win95_NetWkstaUserGetInfo(nil, 1, Pointer(WS95));
if EC = 0 then
begin
Result := WS95^.wkui1_logon_domain;
Win95_NetApiBufferFree(Pointer(WS95));
end;
end;
end;
finally
if hNETAPI <> 0 then
FreeLibrary(hNETAPI);
end;
end;
function AppendShareResource(ServerName,FilePath,NetName, Remark : string): Integer;
var
ShInfo: TSHARE_INFO_502;
parm_err:PDWORD;
_FilePath,_NetName, _Remark : PWideChar ;
_ServerName : Pchar ;
LibHandle : THandle;
begin
LibHandle := LoadLibrary(NTlib);
if LibHandle = 0 then
raise Exception.Create('Unable to map library: ' + NTlib);
try
@NTNetShareAdd := GetProcAddress(Libhandle, 'NetShareAdd');
GetMem(_ServerName,255) ; //分配内存
GetMem(_FilePath,255);
GetMem(_NetName,255);
GetMem(_Remark,255);
StringToWideChar(FilePath,_FilePath,255); //字符串转换,一定要转换正确
StringToWideChar(NetName,_NetName,255);
StringToWideChar(Remark,_Remark,255);
strpcopy(_ServerName,ServerName);
//开始创建结构
with ShInfo do
begin
shi502_netname := _NetName;
shi502_type := STYPE_DISKTREE ;
shi502_remark := _Remark ;
shi502_max_uses := $FFFFFFFF;
shi502_current_uses := 10;
shi502_path := _FilePath;
shi502_passwd := nil;
shi502_reserved := 0;
shi502_security_descriptor := nil;
shi502_permissions := ACCESS_ALL;
end;
try
Result := NTNetShareAdd(_ServerName, 502, @ShInfo, parm_err);
finally // 别忘了释放内存
FreeMem(_ServerName,255);
FreeMem(_FilePath,255);
FreeMem(_NetName,255);
FreeMem(_Remark,255);
end;
finally
FreeLibrary(Libhandle);
end;
end;
function DeleteShareResource(ServerName: string; NetName: string): Integer;
var
_ServerName : Pchar ;
LibHandle : THandle;
begin
LibHandle := LoadLibrary(NTlib);
if LibHandle = 0 then
raise Exception.Create('Unable to map library: ' + NTlib);
try
@NTNetShareDel := GetProcAddress(Libhandle, 'NetShareDel');
GetMem(_ServerName,255) ; //分配内存
strpcopy(_ServerName,ServerName);
try
Result := NTNetShareDel(_ServerName,NetName,0);
finally
FreeMem(_ServerName,255);
end;
finally
FreeLibrary(Libhandle);
end;
end;
function AddShareResource (ServerName : PChar; FilePath : PChar;
NetName : PChar; Remark : PChar ) : Integer;
var
MyShare : Share_Info50;
PMyShare : ^Share_Info50;
LibHandle : THandle;
begin
LibHandle := LoadLibrary(NTlib);
if LibHandle = 0 then
raise Exception.Create('Unable to map library: ' + MElib);
try
@MENetShareAdd := GetProcAddress(Libhandle, 'NetShareDel');
strLcopy(MyShare.shi50_netname,NetName,13);
MyShare.shi50_type := 0;
MyShare.shi50_flags := 0;
MyShare.shi50_remark := Remark;
MyShare.shi50_path := FilePath;
{MyShare.shi50_rw_password := nil ;
MyShare.shi50_ro_password :=nil ;}
PMyShare := @MyShare;
Result := MENetShareAdd(ServerName,50,PMyShare,SizeOf(MyShare));
finally
FreeLibrary(Libhandle);
end;
end;
function DelShareResource(ServerName: string; NetName: string): Integer;
var
_ServerName : Pchar ;
LibHandle : THandle;
begin
LibHandle := LoadLibrary(NTlib);
if LibHandle = 0 then
raise Exception.Create('Unable to map library: ' + MElib);
try
@NTNetShareDel := GetProcAddress(Libhandle, 'NetShareDel');
GetMem(_ServerName,255) ; //分配内存
strpcopy(_ServerName,ServerName);
try
Result := NTNetShareDel(_ServerName,NetName,0);
finally
FreeMem(_ServerName,255);
end;
finally
FreeLibrary(Libhandle);
end;
end;
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