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/*************************************************************************
*
* ATTACH.C
*
* NT Attach routines
*
* Copyright (c) 1995 Microsoft Corporation
*
* $Log: N:\NT\PRIVATE\NW4\NWSCRIPT\VCS\ATTACH.C $
*
* Rev 1.2 10 Apr 1996 14:21:30 terryt
* Hotfix for 21181hq
*
* Rev 1.2 12 Mar 1996 19:52:08 terryt
* Relative NDS names and merge
*
* Rev 1.1 22 Dec 1995 14:23:32 terryt
* Add Microsoft headers
*
* Rev 1.0 15 Nov 1995 18:06:26 terryt
* Initial revision.
*
* Rev 1.1 23 May 1995 19:36:30 terryt
* Spruce up source
*
* Rev 1.0 15 May 1995 19:10:10 terryt
* Initial revision.
*
*************************************************************************/
#include <stdio.h>
#include <direct.h>
#include <time.h>
#include <stdlib.h>
#include <nt.h>
#include <ntrtl.h>
#include <nturtl.h>
#include <windows.h>
#include <nwapi32.h>
#include <ntddnwfs.h>
#include <nwapi.h>
#include <npapi.h>
#include "inc/common.h"
#include "ntnw.h"
/********************************************************************
GetDefaultConnectionID
Routine Description:
Return the default connection ID ( the "preferred server" )
Arguments:
phNewConn - pointer to connection number
Return Value:
0 = success
else NetWare error number
*******************************************************************/
unsigned int
GetDefaultConnectionID(
unsigned int *phNewConn
)
{
VERSION_INFO VerInfo;
unsigned int Result;
if ( fNDS )
{
Result = NTAttachToFileServer( NDSTREE, phNewConn );
}
else
{
//
// "*" is the name for the preferred server
//
Result = NTAttachToFileServer( "*", phNewConn );
if ( Result )
return Result;
Result = NWGetFileServerVersionInfo( (NWCONN_HANDLE)*phNewConn,
&VerInfo );
if ( Result )
return Result;
NWDetachFromFileServer( (NWCONN_HANDLE)*phNewConn );
Result = NTAttachToFileServer( VerInfo.szName, phNewConn );
}
return Result;
}
/********************************************************************
NTAttachToFileServer
Routine Description:
Given a server name, return a connection handle.
We need our own because NWAPI32 does it's own mapping
of errors.
Arguments:
pszServerName - Ascii server name
phNewConn - pointer to connection handle
Return Value:
0 = success
else NetWare error number
*******************************************************************/
unsigned int
NTAttachToFileServer(
unsigned char *pszServerName,
unsigned int *phNewConn
)
{
return ( NWAttachToFileServer( pszServerName, 0,
(NWCONN_HANDLE *)phNewConn ) );
}
/********************************************************************
NTIsConnected
Routine Description:
Given a server name, is there already a connection to it?
Arguments:
pszServerName - ascii server name
Return Value:
TRUE - a connection to the server exists
FALSE - a connection to the server does not exist
*******************************************************************/
unsigned int
NTIsConnected( unsigned char * pszServerName )
{
LPBYTE Buffer ;
DWORD dwErr ;
HANDLE EnumHandle ;
DWORD Count ;
LPWSTR pszServerNameW;
INT nSize;
DWORD BufferSize = 4096;
nSize = (strlen( pszServerName ) + 1 + 2) * sizeof( WCHAR );
//
// allocate memory and open the enumeration
//
if (!(pszServerNameW = LocalAlloc( LPTR, nSize ))) {
DisplayMessage(IDR_NOT_ENOUGH_MEMORY);
return FALSE;
}
wcscpy( pszServerNameW, L"\\\\" );
szToWide( pszServerNameW + 2, pszServerName, nSize );
//
// allocate memory and open the enumeration
//
if (!(Buffer = LocalAlloc( LPTR, BufferSize ))) {
(void) LocalFree((HLOCAL) pszServerNameW) ;
DisplayMessage(IDR_NOT_ENOUGH_MEMORY);
return FALSE;
}
memset( Buffer, 0, BufferSize );
dwErr = NPOpenEnum(RESOURCE_CONNECTED, 0, 0, NULL, &EnumHandle) ;
if (dwErr != WN_SUCCESS) {
(void) LocalFree((HLOCAL) pszServerNameW) ;
(void) LocalFree((HLOCAL) Buffer) ;
return FALSE;
}
do {
Count = 0xFFFFFFFF ;
BufferSize = 4096;
dwErr = NwEnumConnections(EnumHandle, &Count, Buffer, &BufferSize, TRUE) ;
if ((dwErr == WN_SUCCESS || dwErr == WN_NO_MORE_ENTRIES)
&& ( Count != 0xFFFFFFFF) )
{
LPNETRESOURCE lpNetResource ;
DWORD i ;
DWORD ServerLen;
ServerLen = wcslen( pszServerNameW );
lpNetResource = (LPNETRESOURCE) Buffer ;
//
// search for our server
//
for ( i = 0; i < Count; lpNetResource++, i++ )
{
if ( lpNetResource->lpProvider )
if ( _wcsicmp( lpNetResource->lpProvider, NW_PROVIDER ) ) {
continue;
}
if ( lpNetResource->lpRemoteName ) {
if ( wcslen(lpNetResource->lpRemoteName) > ServerLen ) {
if ( lpNetResource->lpRemoteName[ServerLen] == L'\\' )
lpNetResource->lpRemoteName[ServerLen] = L'\0';
}
if ( !_wcsicmp(lpNetResource->lpRemoteName, pszServerNameW )) {
(void) WNetCloseEnum(EnumHandle) ;
(void) LocalFree((HLOCAL) pszServerNameW) ;
(void) LocalFree((HLOCAL) Buffer) ;
return TRUE;
}
}
}
}
} while (dwErr == WN_SUCCESS) ;
(void ) WNetCloseEnum(EnumHandle) ;
(void) LocalFree((HLOCAL) pszServerNameW) ;
(void) LocalFree((HLOCAL) Buffer) ;
return FALSE;
}
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