RAS单元

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Unit: Remote Access Service (RAS)
Creation: Feb 18, 1997. Translated from MS-Visual C 4.2 header files
EMail: francois.piette@pophost.eunet.be francois.piette@rtfm.be
http://www.rtfm.be/fpiette
Legal issues: Copyright (C) 1997, 1998 by Fran鏾is PIETTE
Rue de Grady 24, 4053 Embourg, Belgium. Fax: +32-4-365.74.56
<francois.piette@pophost.eunet.be>
This software is provided 'as-is', without any express or
implied warranty. In no event will the author be held liable
for any damages arising from the use of this software.
Permission is granted to anyone to use this software for any
purpose, including commercial applications, and to alter it
and redistribute it freely, subject to the following
restrictions:
1. The origin of this software must not be misrepresented,
you must not claim that you wrote the original software.
If you use this software in a product, an acknowledgment
in the product documentation would be appreciated but is
not required.
2. Altered source versions must be plainly marked as such, and
must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
Updates:
Sep 25, 1998 V1.10 Added RasGetIPAddress and RasGetProjectionInfoA. Thanks to
Jan Tomasek <xtomasej@fel.cvut.cz> for his help.
　
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unit Ras;
interface
uses
Windows, SysUtils;
{$DEFINE WINVER400}
const
RasUnitVersion = 110;
CopyRight : String = ' RasUnit (c) 97-98 F. Piette V1.10 ';
rasapi32 = 'rasapi32.dll';
UNLEN = 256; // Maximum user name length
PWLEN = 256; // Maximum password length
CNLEN = 15; // Computer name length
DNLEN = CNLEN; // Maximum domain name length
RAS_MaxDeviceType = 16;
RAS_MaxPhoneNumber = 128;
RAS_MaxIpAddress = 15;
RAS_MaxIpxAddress = 21;
{$IFDEF WINVER400}
RAS_MaxEntryName = 256;
RAS_MaxDeviceName = 128;
RAS_MaxCallbackNumber = RAS_MaxPhoneNumber;
{$ELSE}
RAS_MaxEntryName = 20;
RAS_MaxDeviceName = 32;
RAS_MaxCallbackNumber = 48;
{$ENDIF}
RAS_MaxAreaCode = 10;
RAS_MaxPadType = 32;
RAS_MaxX25Address = 200;
RAS_MaxFacilities = 200;
RAS_MaxUserData = 200;
RASCS_OpenPort = 0;
RASCS_PortOpened = 1;
RASCS_ConnectDevice = 2;
RASCS_DeviceConnected = 3;
RASCS_AllDevicesConnected = 4;
RASCS_Authenticate = 5;
RASCS_AuthNotify = 6;
RASCS_AuthRetry = 7;
RASCS_AuthCallback = 8;
RASCS_AuthChangePassword = 9;
RASCS_AuthProject = 10;
RASCS_AuthLinkSpeed = 11;
RASCS_AuthAck = 12;
RASCS_ReAuthenticate = 13;
RASCS_Authenticated = 14;
RASCS_PrepareForCallback = 15;
RASCS_WaitForModemReset = 16;
RASCS_WaitForCallback = 17;
RASCS_Projected = 18;
{$IFDEF WINVER400}
RASCS_StartAuthentication = 19;
RASCS_CallbackComplete = 20;
RASCS_LogonNetwork = 21;
{$ENDIF}
RASCS_SubEntryConnected = 22;
RASCS_SubEntryDisconnected= 23;
RASCS_PAUSED = $1000;
RASCS_Interactive = RASCS_PAUSED;
RASCS_RetryAuthentication = (RASCS_PAUSED + 1);
RASCS_CallbackSetByCaller = (RASCS_PAUSED + 2);
RASCS_PasswordExpired = (RASCS_PAUSED + 3);
RASCS_DONE = $2000;
RASCS_Connected = RASCS_DONE;
RASCS_Disconnected = (RASCS_DONE + 1);
// If using RasDial message notifications, get the notification message code
// by passing this string to the RegisterWindowMessageA() API.
// WM_RASDIALEVENT is used only if a unique message cannot be registered.
RASDIALEVENT = 'RasDialEvent';
WM_RASDIALEVENT = $CCCD;
// TRASPROJECTION
RASP_Amb = $10000;
RASP_PppNbf = $0803F;
RASP_PppIpx = $0802B;
RASP_PppIp = $08021;
RASP_Slip = $20000;
type
THRASCONN = THandle;
PHRASCONN = ^THRASCONN;
TRASCONNSTATE = DWORD;
PDWORD = ^DWORD;
PBOOL = ^BOOL;
TRASDIALPARAMS = packed record
dwSize : DWORD;
szEntryName : array [0..RAS_MaxEntryName] of Char;
szPhoneNumber : array [0..RAS_MaxPhoneNumber] of Char;
szCallbackNumber : array [0..RAS_MaxCallbackNumber] of Char;
szUserName : array [0..UNLEN] of Char;
szPassword : array [0..PWLEN] of Char;
szDomain : array [0..DNLEN] of Char;
{$IFDEF WINVER401}
dwSubEntry : DWORD;
dwCallbackId : DWORD;
{$ENDIF}
szPadding : array [0..2] of Char;
end;
PRASDIALPARAMS = ^TRASDIALPARAMS;
TRASDIALEXTENSIONS = packed record
dwSize : DWORD;
dwfOptions : DWORD;
hwndParent : HWND;
reserved : DWORD;
end;
PRASDIALEXTENSIONS = ^TRASDIALEXTENSIONS;
TRASCONNSTATUS = packed record
dwSize : DWORD;
RasConnState : TRASCONNSTATE;
dwError : DWORD;
szDeviceType : array [0..RAS_MaxDeviceType] of char;
szDeviceName : array [0..RAS_MaxDeviceName] of char;
szPadding : array [0..1] of Char;
end;
PRASCONNSTATUS = ^TRASCONNSTATUS;
TRASCONN = packed record
dwSize : DWORD;
hRasConn : THRASCONN;
szEntryName : array [0..RAS_MaxEntryName] of char;
{$IFDEF WINVER400}
szDeviceType : array [0..RAS_MaxDeviceType] of char;
szDeviceName : array [0..RAS_MaxDeviceName] of char;
{$ENDIF}
szPadding : array [0..0] of Char;
end;
PRASCONN = ^TRASCONN;
TRASENTRYNAME = packed record
dwSize : DWORD;
szEntryName : array [0..RAS_MaxEntryName] of char;
szPadding : array [0..2] of Char;
end;
PRASENTRYNAME = ^TRASENTRYNAME;
TRASENTRYDLG = packed record
dwSize : DWORD;
hWndOwner : HWND;
dwFlags : DWORD;
xDlg : LongInt;
yDlg : LongInt;
szEntry : array [0..RAS_MaxEntryName] of char;
dwError : DWORD;
Reserved : DWORD;
Reserved2 : DWORD;
szPadding : array [0..2] of Char;
end;
PRASENTRYDLG = ^TRASENTRYDLG;
TRASPROJECTION = integer;
TRASPPPIP = record
dwSize : DWORD;
dwError : DWORD;
szIpAddress : array [0..RAS_MaxIpAddress] of char;
end;
　
function RasDialA(RasDialExtensions: PRASDIALEXTENSIONS;
PhoneBook : PChar;
RasDialParams : PRASDIALPARAMS;
NotifierType : DWORD;
Notifier : Pointer;
RasConn : PHRASCONN
): DWORD; stdcall;
function RasGetErrorStringA(
uErrorValue : DWORD; // error to get string for
szErrorString : PChar; // buffer to hold error string
cBufSize : DWORD // size, in characters, of buffer
): DWORD; stdcall;
function RasHangupA(RasConn: THRASCONN): DWORD; stdcall;
function RasConnectionStateToString(nState : Integer) : String;
function RasGetConnectStatusA(
hRasConn: THRASCONN; // handle to RAS connection of interest
lpRasConnStatus : PRASCONNSTATUS // buffer to receive status data
): DWORD; stdcall;
function RasEnumConnectionsA(
pRasConn : PRASCONN; // buffer to receive connections data
pCB : PDWORD; // size in bytes of buffer
pcConnections : PDWORD // number of connections written to buffer
) : DWORD; stdcall
function RasEnumEntriesA(
Reserved : Pointer; // reserved, must be NIL
szPhonebook : PChar; // full path and filename of phonebook file
lpRasEntryName : PRASENTRYNAME; // buffer to receive entries
lpcb : PDWORD; // size in bytes of buffer
lpcEntries : PDWORD // number of entries written to buffer
) : DWORD; stdcall;
function RasGetEntryDialParamsA(
lpszPhonebook : PChar; // pointer to the full path and filename of the phonebook file
lprasdialparams : PRASDIALPARAMS; // pointer to a structure that receives the connection parameters
lpfPassword : PBOOL // indicates whether the user's password was retrieved
) : DWORD; stdcall;
function RasEditPhonebookEntryA(
hWndParent : HWND; // handle to the parent window of the dialog box
lpszPhonebook : PChar; // pointer to the full path and filename of the phonebook file
lpszEntryName : PChar // pointer to the phonebook entry name
) : DWORD; stdcall;
//function RasEntryDlgA(
// lpszPhonebook : PChar; // pointer to the full path and filename of the phone-book file
// lpszEntry : PChar; // pointer to the name of the phone-book entry to edit, copy, or create
// lpInfo : PRASENTRYDLG // pointer to a structure that contains additional parameters
// ) : DWORD; stdcall;
function RasCreatePhonebookEntryA(
hWndParent : HWND; // handle to the parent window of the dialog box
lpszPhonebook : PChar // pointer to the full path and filename of the phonebook file
) : DWORD; stdcall;
function RasGetProjectionInfoA(
hRasConn : THRASCONN; // handle that specifies remote access connection of interest
RasProjection : TRASPROJECTION; // specifies type of projection information to obtain
lpProjection : Pointer; // points to buffer that receives projection information
lpcb : PDWORD // points to variable that specifies buffer size
) : DWORD; stdcall;
function RasGetIPAddress: string;
implementation
　
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function RasConnectionStateToString(nState : Integer) : String;
begin
case nState of
RASCS_OpenPort: Result := 'Opening Port';
RASCS_PortOpened: Result := 'Port Opened';
RASCS_ConnectDevice: Result := 'Connecting Device';
RASCS_DeviceConnected: Result := 'Device Connected';
RASCS_AllDevicesConnected: Result := 'All Devices Connected';
RASCS_Authenticate: Result := 'Starting Authentication';
RASCS_AuthNotify: Result := 'Authentication Notify';
RASCS_AuthRetry: Result := 'Authentication Retry';
RASCS_AuthCallback: Result := 'Callback Requested';
RASCS_AuthChangePassword: Result := 'Change Password Requested';
RASCS_AuthProject: Result := 'Projection Phase Started';
RASCS_AuthLinkSpeed: Result := 'Link Speed Calculation';
RASCS_AuthAck: Result := 'Authentication Acknowledged';
RASCS_ReAuthenticate: Result := 'Reauthentication Started';
RASCS_Authenticated: Result := 'Authenticated';
RASCS_PrepareForCallback: Result := 'Preparation For Callback';
RASCS_WaitForModemReset: Result := 'Waiting For Modem Reset';
RASCS_WaitForCallback: Result := 'Waiting For Callback';
RASCS_Projected: Result := 'Projected';
{$IFDEF WINVER400}
RASCS_StartAuthentication: Result := 'Start Authentication';
RASCS_CallbackComplete: Result := 'Callback Complete';
RASCS_LogonNetwork: Result := 'Logon Network';
{$ENDIF}
RASCS_SubEntryConnected: Result := '';
RASCS_SubEntryDisconnected: Result := '';
RASCS_Interactive: Result := 'Interactive';
RASCS_RetryAuthentication: Result := 'Retry Authentication';
RASCS_CallbackSetByCaller: Result := 'Callback Set By Caller';
RASCS_PasswordExpired: Result := 'Password Expired';
RASCS_Connected: Result := 'Connected';
RASCS_Disconnected: Result := 'Disconnected';
else
Result := 'Connection state #' + IntToStr(nState);
end;
end;
　
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function RasGetIPAddress: string;
var
RASConns : TRasConn;
dwSize : DWORD;
dwCount : DWORD;
RASpppIP : TRASPPPIP;
begin
Result := '';
RASConns.dwSize := SizeOf(TRASConn);
RASpppIP.dwSize := SizeOf(RASpppIP);
dwSize := SizeOf(RASConns);
if RASEnumConnectionsA(@RASConns, @dwSize, @dwCount) = 0 then begin
if dwCount > 0 then begin
dwSize := SizeOf(RASpppIP);
RASpppIP.dwSize := SizeOf(RASpppIP);
if RASGetProjectionInfoA(RASConns.hRasConn,
RASP_PppIp,
@RasPPPIP,
@dwSize) = 0 then
Result := StrPas(RASpppIP.szIPAddress);
end;
end;
end;
　
　
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function RasDialA; external rasapi32 name 'RasDialA';
function RasGetErrorStringA; external rasapi32 name 'RasGetErrorStringA';
function RasHangUpA; external rasapi32 name 'RasHangUpA';
function RasGetConnectStatusA; external rasapi32 name 'RasGetConnectStatusA';
function RasEnumConnectionsA; external rasapi32 name 'RasEnumConnectionsA';
function RasEnumEntriesA; external rasapi32 name 'RasEnumEntriesA';
function RasGetEntryDialParamsA; external rasapi32 name 'RasGetEntryDialParamsA';
function RasEditPhonebookEntryA; external rasapi32 name 'RasEditPhonebookEntryA';
//function RasEntryDlgA; external rasapi32 name 'RasEntryDlgA';
function RasCreatePhonebookEntryA; external rasapi32 name 'RasCreatePhonebookEntryA';
function RasGetProjectionInfoA; external rasapi32 name 'RasGetProjectionInfoA';
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end.
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