366 lines
9.4 KiB
C++
366 lines
9.4 KiB
C++
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/**********************************************************************/
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/** Microsoft Windows/NT **/
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/** Copyright(c) Microsoft Corp., 1992 **/
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/**********************************************************************/
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/*
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MPRProp.cxx
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This file contains the implementation for the
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WNetGetPropertyTextW
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WNetPropertyDialogW
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FILE HISTORY:
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05-May-1999 jschwart
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Make provider addition/removal dynamic
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27-May-1994 danl
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WNetGetPropertyTextW & WNetPropertyDialogW: If no provider
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claims the connection in question, then we try all providers.
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The actual rule is that we need to pass it to the lanman
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provider anyway (so it can check for a share). But to play
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completely fair, we'll pass it to everyone.
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Johnl 07-Jan-1991 Boilerplated from Danl's code
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*/
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#include "precomp.hxx"
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DWORD
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WNetGetPropertyTextW (
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DWORD iButton,
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DWORD nPropSel,
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LPTSTR lpszName,
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LPTSTR lpszButtonName,
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DWORD nButtonNameLength,
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DWORD nType
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)
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/*++
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Routine Description:
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Arguments:
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Return Value:
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Note:
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--*/
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{
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DWORD status=WN_SUCCESS;
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LPPROVIDER provider;
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BOOL fcnSupported = FALSE; // Is fcn supported by a provider?
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DWORD providerIndex;
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LPDWORD index;
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DWORD indexArray[DEFAULT_MAX_PROVIDERS];
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DWORD numProviders;
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DWORD statusFlag = 0; // used to indicate major error types
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DWORD i;
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MprCheckProviders();
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CProviderSharedLock PLock;
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INIT_IF_NECESSARY(NETWORK_LEVEL,status);
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index = indexArray;
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//
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// Find the Provider Index associated with the drive letter in
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// the pathname (lpszName).
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// NOTE: This function handles exceptions.
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//
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status = MprFindProviderForPath(lpszName, &providerIndex);
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if (status != WN_SUCCESS) {
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MPR_LOG1(ERROR,"WNetGetPropertyText: Couldn't find provider for this "
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"path. Error = %d\n",status);
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//
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// Find the list of providers to call for this request.
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// Since no provider claimed this path, then
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// we need to at least try the lanman provider.
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// Actually we'll give them all a chance.
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//
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status = MprFindCallOrder(
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NULL,
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&index,
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&numProviders,
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NETWORK_TYPE);
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if (status != WN_SUCCESS) {
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return(status);
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}
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}
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else {
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numProviders = 1;
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index[0] = providerIndex;
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}
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//
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// Loop through the list of providers until one answers the request,
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// or the list is exhausted.
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//
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for (i=0; i<numProviders; i++) {
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//
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// Call the appropriate provider's API entry point
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//
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provider = GlobalProviderInfo + index[i];
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if (provider->GetPropertyText != NULL) {
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fcnSupported = TRUE;
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__try {
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status = provider->GetPropertyText(
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iButton,
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nPropSel,
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lpszName,
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lpszButtonName,
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nButtonNameLength,
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nType
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);
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}
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__except(EXCEPTION_EXECUTE_HANDLER) {
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status = GetExceptionCode();
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if (status != EXCEPTION_ACCESS_VIOLATION) {
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MPR_LOG(ERROR,"WNetGetPropertyText:Unexpected Exception "
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"0x%lx\n",status);
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}
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status = WN_BAD_POINTER;
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}
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if (status == WN_NO_NETWORK) {
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statusFlag |= NO_NET;
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}
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else if ((status == WN_NOT_CONNECTED) ||
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(status == WN_BAD_LOCALNAME)){
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statusFlag |= BAD_NAME;
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}
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else {
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//
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// If it wasn't one of those errors, then the provider
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// must have accepted responsiblity for the request.
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// so we exit and process the results. Note that the
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// statusFlag is cleared because we want to ignore other
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// error information that we gathered up until now.
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//
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statusFlag = 0;
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break;
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}
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} // End if this provider supports GetPropertyText.
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}
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if (fcnSupported == FALSE) {
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//
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// No providers in the list support the API function. Therefore,
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// we assume that no networks are installed.
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//
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status = WN_NOT_SUPPORTED;
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}
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//
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// If memory was allocated by MprFindCallOrder, free it.
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//
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if (index != indexArray) {
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LocalFree(index);
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}
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//
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// Handle special errors.
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//
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if (statusFlag == (NO_NET | BAD_NAME)) {
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//
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// Check to see if there was a mix of special errors that occured.
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// If so, pass back the combined error message. Otherwise, let the
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// last error returned get passed back.
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//
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status = WN_NO_NET_OR_BAD_PATH;
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}
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if (status != WN_SUCCESS){
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SetLastError(status);
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}
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//
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// Handle normal errors passed back from the provider
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//
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return(status);
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}
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DWORD
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WNetPropertyDialogW (
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HWND hwndParent,
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DWORD iButton,
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DWORD nPropSel,
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LPTSTR lpszName,
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DWORD nType
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)
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/*++
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Routine Description:
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Arguments:
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Return Value:
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Note:
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--*/
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{
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DWORD status=WN_SUCCESS;
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LPPROVIDER provider;
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BOOL fcnSupported = FALSE; // Is fcn supported by a provider?
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DWORD providerIndex;
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LPDWORD index;
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DWORD indexArray[DEFAULT_MAX_PROVIDERS];
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DWORD numProviders;
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DWORD statusFlag = 0; // used to indicate major error types
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DWORD i;
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MprCheckProviders();
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CProviderSharedLock PLock;
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INIT_IF_NECESSARY(NETWORK_LEVEL,status);
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index = indexArray;
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//
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// Find the Provider Index associated with the drive letter in
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// the pathname (lpszName).
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// NOTE: This function handles exceptions.
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//
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status = MprFindProviderForPath(lpszName, &providerIndex);
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if (status != WN_SUCCESS) {
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MPR_LOG1(ERROR,"WNetPropertyDialog: Couldn't find provider for this "
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"path. Error = %d\n",status);
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//
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// Find the list of providers to call for this request.
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// Since no provider claimed this path, then
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// we need to at least try the lanman provider.
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// Actually we'll give them all a chance.
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//
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status = MprFindCallOrder(
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NULL,
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&index,
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&numProviders,
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NETWORK_TYPE);
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if (status != WN_SUCCESS) {
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return(status);
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}
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}
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else {
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numProviders = 1;
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index[0] = providerIndex;
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}
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//
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// Loop through the list of providers until one answers the request,
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// or the list is exhausted.
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//
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for (i=0; i<numProviders; i++) {
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//
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// Call the appropriate provider's API entry point
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//
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provider = GlobalProviderInfo + index[i];
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if (provider->PropertyDialog != NULL) {
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fcnSupported = TRUE;
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__try {
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status = provider->PropertyDialog(
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hwndParent,
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iButton,
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nPropSel,
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lpszName,
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nType
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);
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}
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__except(EXCEPTION_EXECUTE_HANDLER) {
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status = GetExceptionCode();
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if (status != EXCEPTION_ACCESS_VIOLATION) {
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MPR_LOG(ERROR,"WNetPropertyDialog:Unexpected Exception "
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"0x%lx\n",status);
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}
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status = WN_BAD_POINTER;
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}
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if (status == WN_NO_NETWORK) {
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statusFlag |= NO_NET;
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}
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else if ((status == WN_NOT_CONNECTED) ||
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(status == WN_BAD_LOCALNAME)){
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statusFlag |= BAD_NAME;
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}
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else {
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//
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// If it wasn't one of those errors, then the provider
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// must have accepted responsiblity for the request.
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// so we exit and process the results. Note that the
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// statusFlag is cleared because we want to ignore other
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// error information that we gathered up until now.
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//
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statusFlag = 0;
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break;
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}
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} // End if this provider supports PropertyDialog
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}
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if (fcnSupported == FALSE) {
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//
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// No providers in the list support the API function. Therefore,
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// we assume that no networks are installed.
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//
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status = WN_NOT_SUPPORTED;
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}
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//
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// If memory was allocated by MprFindCallOrder, free it.
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//
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if (index != indexArray) {
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LocalFree(index);
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}
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//
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// Handle special errors.
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//
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if (statusFlag == (NO_NET | BAD_NAME)) {
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//
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// Check to see if there was a mix of special errors that occured.
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// If so, pass back the combined error message. Otherwise, let the
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// last error returned get passed back.
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//
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status = WN_NO_NET_OR_BAD_PATH;
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}
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//
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// Handle normal errors passed back from the provider
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//
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if (status != WN_SUCCESS){
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SetLastError(status);
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}
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return(status);
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}
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