wnet.c

这是一个开放源代码的与WINNT/WIN2K/WIN2003兼容的操作系统

    return WN_NO_NETWORK;
}

/**************************************************************************
 * WNetGetConnectionA [MPR.@]
 *
 * RETURNS
 * - WN_BAD_LOCALNAME     lpLocalName makes no sense
 * - WN_NOT_CONNECTED     drive is a local drive
 * - WN_MORE_DATA         buffer isn't big enough
 * - WN_SUCCESS           success (net path in buffer)
 *
 * FIXME: need to test return values under different errors
 */
DWORD WINAPI WNetGetConnectionA( LPCSTR lpLocalName,
                                 LPSTR lpRemoteName, LPDWORD lpBufferSize )
{
    DWORD ret;

    if (!lpLocalName)
        ret = WN_BAD_POINTER;
    else if (!lpBufferSize)
        ret = WN_BAD_POINTER;
    else if (!lpRemoteName && *lpBufferSize)
        ret = WN_BAD_POINTER;
    else
    {
        int len = MultiByteToWideChar(CP_ACP, 0, lpLocalName, -1, NULL, 0);

        if (len)
        {
            PWSTR wideLocalName = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));

            if (wideLocalName)
            {
                WCHAR wideRemoteStatic[MAX_PATH];
                DWORD wideRemoteSize = sizeof(wideRemoteStatic) / sizeof(WCHAR);

                MultiByteToWideChar(CP_ACP, 0, lpLocalName, -1, wideLocalName, len);

                /* try once without memory allocation */
                ret = WNetGetConnectionW(wideLocalName, wideRemoteStatic,
                 &wideRemoteSize);
                if (ret == WN_SUCCESS)
                {
                    int len = WideCharToMultiByte(CP_ACP, 0, wideRemoteStatic,
                     -1, NULL, 0, NULL, NULL);

                    if (len <= *lpBufferSize)
                    {
                        WideCharToMultiByte(CP_ACP, 0, wideRemoteStatic, -1,
                         lpRemoteName, *lpBufferSize, NULL, NULL);
                        ret = WN_SUCCESS;
                    }
                    else
                    {
                        *lpBufferSize = len;
                        ret = WN_MORE_DATA;
                    }
                }
                else if (ret == WN_MORE_DATA)
                {
                    PWSTR wideRemote = HeapAlloc(GetProcessHeap(), 0,
                     wideRemoteSize * sizeof(WCHAR));

                    if (wideRemote)
                    {
                        ret = WNetGetConnectionW(wideLocalName, wideRemote,
                         &wideRemoteSize);
                        if (ret == WN_SUCCESS)
                        {
                            if (len <= *lpBufferSize)
                            {
                                WideCharToMultiByte(CP_ACP, 0, wideRemoteStatic,
                                 -1, lpRemoteName, *lpBufferSize, NULL, NULL);
                                ret = WN_SUCCESS;
                            }
                            else
                            {
                                *lpBufferSize = len;
                                ret = WN_MORE_DATA;
                            }
                        }
                        HeapFree(GetProcessHeap(), 0, wideRemote);
                    }
                    else
                        ret = WN_OUT_OF_MEMORY;
                }
                HeapFree(GetProcessHeap(), 0, wideLocalName);
            }
            else
                ret = WN_OUT_OF_MEMORY;
        }
        else
            ret = WN_BAD_LOCALNAME;
    }
    if (ret)
        SetLastError(ret);
    TRACE("Returning %d\n", ret);
    return ret;
}

/**************************************************************************
 * WNetGetConnectionW [MPR.@]
 *
 * FIXME: need to test return values under different errors
 */
DWORD WINAPI WNetGetConnectionW( LPCWSTR lpLocalName,
                                 LPWSTR lpRemoteName, LPDWORD lpBufferSize )
{
    DWORD ret;

    TRACE("(%s, %p, %p)\n", debugstr_w(lpLocalName), lpRemoteName,
     lpBufferSize);

    if (!lpLocalName)
        ret = WN_BAD_POINTER;
    else if (!lpBufferSize)
        ret = WN_BAD_POINTER;
    else if (!lpRemoteName && *lpBufferSize)
        ret = WN_BAD_POINTER;
    else if (!lpLocalName[0])
        ret = WN_BAD_LOCALNAME;
    else
    {
        if (lpLocalName[1] == ':')
        {
            switch(GetDriveTypeW(lpLocalName))
            {
            case DRIVE_REMOTE:
            {
                static const WCHAR unc[] = { 'u','n','c','\\' };
                WCHAR rremote[MAX_PATH], *remote = rremote;
                if (!QueryDosDeviceW( lpLocalName, remote, MAX_PATH )) remote[0] = 0;
                else if (!strncmpW(remote, unc, 4))
                {
                    remote += 2;
                    remote[0] = '\\';
                }
                else if (remote[0] != '\\' || remote[1] != '\\')
                    FIXME("Don't know how to convert %s to an unc\n", debugstr_w(remote));

                if (strlenW(remote) + 1 > *lpBufferSize)
                {
                    *lpBufferSize = strlenW(remote) + 1;
                    ret = WN_MORE_DATA;
                }
                else
                {
                    strcpyW( lpRemoteName, remote );
                    *lpBufferSize = strlenW(lpRemoteName) + 1;
                    ret = WN_SUCCESS;
                }
                break;
            }
            case DRIVE_REMOVABLE:
            case DRIVE_FIXED:
            case DRIVE_CDROM:
                TRACE("file is local\n");
                ret = WN_NOT_CONNECTED;
                break;
            default:
                ret = WN_BAD_LOCALNAME;
            }
        }
        else
            ret = WN_BAD_LOCALNAME;
    }
    if (ret)
        SetLastError(ret);
    TRACE("Returning %d\n", ret);
    return ret;
}

/**************************************************************************
 * WNetSetConnectionA [MPR.@]
 */
DWORD WINAPI WNetSetConnectionA( LPCSTR lpName, DWORD dwProperty,
                                 LPVOID pvValue )
{
    FIXME( "(%s, %08X, %p): stub\n", debugstr_a(lpName), dwProperty, pvValue );

    SetLastError(WN_NO_NETWORK);
    return WN_NO_NETWORK;
}

/**************************************************************************
 * WNetSetConnectionW [MPR.@]
 */
DWORD WINAPI WNetSetConnectionW( LPCWSTR lpName, DWORD dwProperty,
                                 LPVOID pvValue )
{
    FIXME( "(%s, %08X, %p): stub\n", debugstr_w(lpName), dwProperty, pvValue );

    SetLastError(WN_NO_NETWORK);
    return WN_NO_NETWORK;
}

/*****************************************************************
 * WNetGetUniversalNameA [MPR.@]
 */
DWORD WINAPI WNetGetUniversalNameA ( LPCSTR lpLocalPath, DWORD dwInfoLevel,
                                     LPVOID lpBuffer, LPDWORD lpBufferSize )
{
    DWORD err, size;

    FIXME( "(%s, 0x%08X, %p, %p): stub\n",
           debugstr_a(lpLocalPath), dwInfoLevel, lpBuffer, lpBufferSize);

    switch (dwInfoLevel)
    {
    case UNIVERSAL_NAME_INFO_LEVEL:
    {
        LPUNIVERSAL_NAME_INFOA info = (LPUNIVERSAL_NAME_INFOA)lpBuffer;

        size = sizeof(*info) + lstrlenA(lpLocalPath) + 1;
        if (*lpBufferSize < size)
        {
            err = WN_MORE_DATA;
            break;
        }
        info->lpUniversalName = (char *)info + sizeof(*info);
        lstrcpyA(info->lpUniversalName, lpLocalPath);
        *lpBufferSize = size;
        err = WN_NO_ERROR;
        break;
    }
    case REMOTE_NAME_INFO_LEVEL:
        err = WN_NO_NETWORK;
        break;

    default:
        err = WN_BAD_VALUE;
        break;
    }

    SetLastError(err);
    return err;
}

/*****************************************************************
 * WNetGetUniversalNameW [MPR.@]
 */
DWORD WINAPI WNetGetUniversalNameW ( LPCWSTR lpLocalPath, DWORD dwInfoLevel,
                                     LPVOID lpBuffer, LPDWORD lpBufferSize )
{
    DWORD err, size;

    FIXME( "(%s, 0x%08X, %p, %p): stub\n",
           debugstr_w(lpLocalPath), dwInfoLevel, lpBuffer, lpBufferSize);

    switch (dwInfoLevel)
    {
    case UNIVERSAL_NAME_INFO_LEVEL:
    {
        LPUNIVERSAL_NAME_INFOW info = (LPUNIVERSAL_NAME_INFOW)lpBuffer;

        size = sizeof(*info) + (lstrlenW(lpLocalPath) + 1) * sizeof(WCHAR);
        if (*lpBufferSize < size)
        {
            err = WN_MORE_DATA;
            break;
        }
        info->lpUniversalName = (LPWSTR)((char *)info + sizeof(*info));
        lstrcpyW(info->lpUniversalName, lpLocalPath);
        *lpBufferSize = size;
        err = WN_NO_ERROR;
        break;
    }
    case REMOTE_NAME_INFO_LEVEL:
        err = WN_NO_NETWORK;
        break;

    default:
        err = WN_BAD_VALUE;
        break;
    }

    SetLastError(err);
    return err;
}



/*
 * Other Functions
 */

/**************************************************************************
 * WNetGetUserA [MPR.@]
 *
 * FIXME: we should not return ourselves, but the owner of the drive lpName
 */
DWORD WINAPI WNetGetUserA( LPCSTR lpName, LPSTR lpUserID, LPDWORD lpBufferSize )
{
    if (GetUserNameA( lpUserID, lpBufferSize )) return WN_SUCCESS;
    return GetLastError();
}

/*****************************************************************
 * WNetGetUserW [MPR.@]
 *
 * FIXME: we should not return ourselves, but the owner of the drive lpName
 */
DWORD WINAPI WNetGetUserW( LPCWSTR lpName, LPWSTR lpUserID, LPDWORD lpBufferSize )
{
    if (GetUserNameW( lpUserID, lpBufferSize )) return WN_SUCCESS;
    return GetLastError();
}

/*********************************************************************
 * WNetConnectionDialog [MPR.@]
 */
DWORD WINAPI WNetConnectionDialog( HWND hwnd, DWORD dwType )
{
    FIXME( "(%p, %08X): stub\n", hwnd, dwType );

    SetLastError(WN_NO_NETWORK);
    return WN_NO_NETWORK;
}

/*********************************************************************
 * WNetConnectionDialog1A [MPR.@]
 */
DWORD WINAPI WNetConnectionDialog1A( LPCONNECTDLGSTRUCTA lpConnDlgStruct )
{
    FIXME( "(%p): stub\n", lpConnDlgStruct );

    SetLastError(WN_NO_NETWORK);
    return WN_NO_NETWORK;
}

/*********************************************************************
 * WNetConnectionDialog1W [MPR.@]
 */
DWORD WINAPI WNetConnectionDialog1W( LPCONNECTDLGSTRUCTW lpConnDlgStruct )
{
    FIXME( "(%p): stub\n", lpConnDlgStruct );

    SetLastError(WN_NO_NETWORK);
    return WN_NO_NETWORK;
}

/*********************************************************************
 * WNetDisconnectDialog [MPR.@]
 */
DWORD WINAPI WNetDisconnectDialog( HWND hwnd, DWORD dwType )
{
    FIXME( "(%p, %08X): stub\n", hwnd, dwType );

    SetLastError(WN_NO_NETWORK);
    return WN_NO_NETWORK;
}

/*********************************************************************
 * WNetDisconnectDialog1A [MPR.@]
 */
DWORD WINAPI WNetDisconnectDialog1A( LPDISCDLGSTRUCTA lpConnDlgStruct )
{
    FIXME( "(%p): stub\n", lpConnDlgStruct );

    SetLastError(WN_NO_NETWORK);
    return WN_NO_NETWORK;
}

/*********************************************************************
 * WNetDisconnectDialog1W [MPR.@]
 */
DWORD WINAPI WNetDisconnectDialog1W( LPDISCDLGSTRUCTW lpConnDlgStruct )
{
    FIXME( "(%p): stub\n", lpConnDlgStruct );

    SetLastError(WN_NO_NETWORK);
    return WN_NO_NETWORK;
}

/*****************************