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wine/dlls/mpr/wnet.c
Marcus Meissner c1833ea963 mpr: Added missing pointer dereference (Coverity).
2011-05-30 11:15:34 +02:00

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/*
* MPR WNet functions
*
* Copyright 1999 Ulrich Weigand
* Copyright 2004 Juan Lang
* Copyright 2007 Maarten Lankhorst
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winioctl.h"
#include "winnetwk.h"
#include "npapi.h"
#include "winreg.h"
#include "winuser.h"
#define WINE_MOUNTMGR_EXTENSIONS
#include "ddk/mountmgr.h"
#include "wine/debug.h"
#include "wine/unicode.h"
#include "mprres.h"
#include "wnetpriv.h"
WINE_DEFAULT_DEBUG_CHANNEL(mpr);
/* Data structures representing network service providers. Assumes only one
* thread creates them, and that they are constant for the life of the process
* (and therefore doesn't synchronize access).
* FIXME: only basic provider data and enumeration-related data are implemented
* so far, need to implement the rest too.
*/
typedef struct _WNetProvider
{
HMODULE hLib;
PWSTR name;
PF_NPGetCaps getCaps;
DWORD dwSpecVersion;
DWORD dwNetType;
DWORD dwEnumScopes;
PF_NPOpenEnum openEnum;
PF_NPEnumResource enumResource;
PF_NPCloseEnum closeEnum;
PF_NPGetResourceInformation getResourceInformation;
} WNetProvider, *PWNetProvider;
typedef struct _WNetProviderTable
{
LPWSTR entireNetwork;
DWORD numAllocated;
DWORD numProviders;
WNetProvider table[1];
} WNetProviderTable, *PWNetProviderTable;
#define WNET_ENUMERATOR_TYPE_NULL 0
#define WNET_ENUMERATOR_TYPE_GLOBAL 1
#define WNET_ENUMERATOR_TYPE_PROVIDER 2
#define WNET_ENUMERATOR_TYPE_CONTEXT 3
/* An WNet enumerator. Note that the type doesn't correspond to the scope of
* the enumeration; it represents one of the following types:
* - a 'null' enumeration, one that contains no members
* - a global enumeration, one that's executed across all providers
* - a provider-specific enumeration, one that's only executed by a single
* provider
* - a context enumeration. I know this contradicts what I just said about
* there being no correspondence between the scope and the type, but it's
* necessary for the special case that a "Entire Network" entry needs to
* be enumerated in an enumeration of the context scope. Thus an enumeration
* of the context scope results in a context type enumerator, which morphs
* into a global enumeration (so the enumeration continues across all
* providers).
*/
typedef struct _WNetEnumerator
{
DWORD enumType;
DWORD providerIndex;
HANDLE handle;
BOOL providerDone;
DWORD dwScope;
DWORD dwType;
DWORD dwUsage;
LPNETRESOURCEW lpNet;
} WNetEnumerator, *PWNetEnumerator;
#define BAD_PROVIDER_INDEX (DWORD)0xffffffff
/* Returns an index (into the global WNetProviderTable) of the provider with
* the given name, or BAD_PROVIDER_INDEX if not found.
*/
static DWORD _findProviderIndexW(LPCWSTR lpProvider);
static PWNetProviderTable providerTable;
/*
* Global provider table functions
*/
static void _tryLoadProvider(PCWSTR provider)
{
static const WCHAR servicePrefix[] = { 'S','y','s','t','e','m','\\',
'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
'S','e','r','v','i','c','e','s','\\',0 };
static const WCHAR serviceFmt[] = { '%','s','%','s','\\',
'N','e','t','w','o','r','k','P','r','o','v','i','d','e','r',0 };
WCHAR serviceName[MAX_PATH];
HKEY hKey;
TRACE("%s\n", debugstr_w(provider));
snprintfW(serviceName, sizeof(serviceName) / sizeof(WCHAR), serviceFmt,
servicePrefix, provider);
serviceName[sizeof(serviceName) / sizeof(WCHAR) - 1] = '\0';
if (RegOpenKeyExW(HKEY_LOCAL_MACHINE, serviceName, 0, KEY_READ, &hKey) ==
ERROR_SUCCESS)
{
static const WCHAR szProviderPath[] = { 'P','r','o','v','i','d','e','r',
'P','a','t','h',0 };
WCHAR providerPath[MAX_PATH];
DWORD type, size = sizeof(providerPath);
if (RegQueryValueExW(hKey, szProviderPath, NULL, &type,
(LPBYTE)providerPath, &size) == ERROR_SUCCESS && type == REG_SZ)
{
static const WCHAR szProviderName[] = { 'N','a','m','e',0 };
PWSTR name = NULL;
size = 0;
RegQueryValueExW(hKey, szProviderName, NULL, NULL, NULL, &size);
if (size)
{
name = HeapAlloc(GetProcessHeap(), 0, size);
if (RegQueryValueExW(hKey, szProviderName, NULL, &type,
(LPBYTE)name, &size) != ERROR_SUCCESS || type != REG_SZ)
{
HeapFree(GetProcessHeap(), 0, name);
name = NULL;
}
}
if (name)
{
HMODULE hLib = LoadLibraryW(providerPath);
if (hLib)
{
PF_NPGetCaps getCaps = (PF_NPGetCaps)GetProcAddress(hLib,
"NPGetCaps");
TRACE("loaded lib %p\n", hLib);
if (getCaps)
{
PWNetProvider provider =
&providerTable->table[providerTable->numProviders];
provider->hLib = hLib;
provider->name = name;
TRACE("name is %s\n", debugstr_w(name));
provider->getCaps = getCaps;
provider->dwSpecVersion = getCaps(WNNC_SPEC_VERSION);
provider->dwNetType = getCaps(WNNC_NET_TYPE);
TRACE("net type is 0x%08x\n", provider->dwNetType);
provider->dwEnumScopes = getCaps(WNNC_ENUMERATION);
if (provider->dwEnumScopes)
{
TRACE("supports enumeration\n");
provider->openEnum = (PF_NPOpenEnum)
GetProcAddress(hLib, "NPOpenEnum");
TRACE("openEnum is %p\n", provider->openEnum);
provider->enumResource = (PF_NPEnumResource)
GetProcAddress(hLib, "NPEnumResource");
TRACE("enumResource is %p\n",
provider->enumResource);
provider->closeEnum = (PF_NPCloseEnum)
GetProcAddress(hLib, "NPCloseEnum");
TRACE("closeEnum is %p\n", provider->closeEnum);
provider->getResourceInformation = (PF_NPGetResourceInformation)
GetProcAddress(hLib, "NPGetResourceInformation");
TRACE("getResourceInformation is %p\n",
provider->getResourceInformation);
if (!provider->openEnum || !provider->enumResource
|| !provider->closeEnum)
{
provider->openEnum = NULL;
provider->enumResource = NULL;
provider->closeEnum = NULL;
provider->dwEnumScopes = 0;
WARN("Couldn't load enumeration functions\n");
}
}
providerTable->numProviders++;
}
else
{
WARN("Provider %s didn't export NPGetCaps\n",
debugstr_w(provider));
HeapFree(GetProcessHeap(), 0, name);
FreeLibrary(hLib);
}
}
else
{
WARN("Couldn't load library %s for provider %s\n",
debugstr_w(providerPath), debugstr_w(provider));
HeapFree(GetProcessHeap(), 0, name);
}
}
else
{
WARN("Couldn't get provider name for provider %s\n",
debugstr_w(provider));
}
}
else
WARN("Couldn't open value %s\n", debugstr_w(szProviderPath));
RegCloseKey(hKey);
}
else
WARN("Couldn't open service key for provider %s\n",
debugstr_w(provider));
}
void wnetInit(HINSTANCE hInstDll)
{
static const WCHAR providerOrderKey[] = { 'S','y','s','t','e','m','\\',
'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
'C','o','n','t','r','o','l','\\',
'N','e','t','w','o','r','k','P','r','o','v','i','d','e','r','\\',
'O','r','d','e','r',0 };
static const WCHAR providerOrder[] = { 'P','r','o','v','i','d','e','r',
'O','r','d','e','r',0 };
HKEY hKey;
if (RegOpenKeyExW(HKEY_LOCAL_MACHINE, providerOrderKey, 0, KEY_READ, &hKey)
== ERROR_SUCCESS)
{
DWORD size = 0;
RegQueryValueExW(hKey, providerOrder, NULL, NULL, NULL, &size);
if (size)
{
PWSTR providers = HeapAlloc(GetProcessHeap(), 0, size);
if (providers)
{
DWORD type;
if (RegQueryValueExW(hKey, providerOrder, NULL, &type,
(LPBYTE)providers, &size) == ERROR_SUCCESS && type == REG_SZ)
{
PWSTR ptr;
DWORD numToAllocate;
TRACE("provider order is %s\n", debugstr_w(providers));
/* first count commas as a heuristic for how many to
* allocate space for */
for (ptr = providers, numToAllocate = 1; ptr; )
{
ptr = strchrW(ptr, ',');
if (ptr) {
numToAllocate++;
ptr++;
}
}
providerTable =
HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
sizeof(WNetProviderTable)
+ (numToAllocate - 1) * sizeof(WNetProvider));
if (providerTable)
{
PWSTR ptrPrev;
int entireNetworkLen;
LPCWSTR stringresource;
entireNetworkLen = LoadStringW(hInstDll,
IDS_ENTIRENETWORK, (LPWSTR)&stringresource, 0);
providerTable->entireNetwork = HeapAlloc(
GetProcessHeap(), 0, (entireNetworkLen + 1) *
sizeof(WCHAR));
if (providerTable->entireNetwork)
{
memcpy(providerTable->entireNetwork, stringresource, entireNetworkLen*sizeof(WCHAR));
providerTable->entireNetwork[entireNetworkLen] = 0;
}
providerTable->numAllocated = numToAllocate;
for (ptr = providers; ptr; )
{
ptrPrev = ptr;
ptr = strchrW(ptr, ',');
if (ptr)
*ptr++ = '\0';
_tryLoadProvider(ptrPrev);
}
}
}
HeapFree(GetProcessHeap(), 0, providers);
}
}
RegCloseKey(hKey);
}
}
void wnetFree(void)
{
if (providerTable)
{
DWORD i;
for (i = 0; i < providerTable->numProviders; i++)
{
HeapFree(GetProcessHeap(), 0, providerTable->table[i].name);
FreeModule(providerTable->table[i].hLib);
}
HeapFree(GetProcessHeap(), 0, providerTable->entireNetwork);
HeapFree(GetProcessHeap(), 0, providerTable);
providerTable = NULL;
}
}
static DWORD _findProviderIndexW(LPCWSTR lpProvider)
{
DWORD ret = BAD_PROVIDER_INDEX;
if (providerTable && providerTable->numProviders)
{
DWORD i;
for (i = 0; i < providerTable->numProviders &&
ret == BAD_PROVIDER_INDEX; i++)
if (!strcmpW(lpProvider, providerTable->table[i].name))
ret = i;
}
return ret;
}
/*
* Browsing Functions
*/
static LPNETRESOURCEW _copyNetResourceForEnumW(LPNETRESOURCEW lpNet)
{
LPNETRESOURCEW ret;
if (lpNet)
{
ret = HeapAlloc(GetProcessHeap(), 0, sizeof(NETRESOURCEW));
if (ret)
{
size_t len;
*ret = *lpNet;
ret->lpLocalName = ret->lpComment = ret->lpProvider = NULL;
if (lpNet->lpRemoteName)
{
len = strlenW(lpNet->lpRemoteName) + 1;
ret->lpRemoteName = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
if (ret->lpRemoteName)
strcpyW(ret->lpRemoteName, lpNet->lpRemoteName);
}
}
}
else
ret = NULL;
return ret;
}
static void _freeEnumNetResource(LPNETRESOURCEW lpNet)
{
if (lpNet)
{
HeapFree(GetProcessHeap(), 0, lpNet->lpRemoteName);
HeapFree(GetProcessHeap(), 0, lpNet);
}
}
static PWNetEnumerator _createNullEnumerator(void)
{
PWNetEnumerator ret = HeapAlloc(GetProcessHeap(),
HEAP_ZERO_MEMORY, sizeof(WNetEnumerator));
if (ret)
ret->enumType = WNET_ENUMERATOR_TYPE_NULL;
return ret;
}
static PWNetEnumerator _createGlobalEnumeratorW(DWORD dwScope, DWORD dwType,
DWORD dwUsage, LPNETRESOURCEW lpNet)
{
PWNetEnumerator ret = HeapAlloc(GetProcessHeap(),
HEAP_ZERO_MEMORY, sizeof(WNetEnumerator));
if (ret)
{
ret->enumType = WNET_ENUMERATOR_TYPE_GLOBAL;
ret->dwScope = dwScope;
ret->dwType = dwType;
ret->dwUsage = dwUsage;
ret->lpNet = _copyNetResourceForEnumW(lpNet);
}
return ret;
}
static PWNetEnumerator _createProviderEnumerator(DWORD dwScope, DWORD dwType,
DWORD dwUsage, DWORD index, HANDLE handle)
{
PWNetEnumerator ret;
if (!providerTable || index >= providerTable->numProviders)
ret = NULL;
else
{
ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(WNetEnumerator));
if (ret)
{
ret->enumType = WNET_ENUMERATOR_TYPE_PROVIDER;
ret->providerIndex = index;
ret->dwScope = dwScope;
ret->dwType = dwType;
ret->dwUsage = dwUsage;
ret->handle = handle;
}
}
return ret;
}
static PWNetEnumerator _createContextEnumerator(DWORD dwScope, DWORD dwType,
DWORD dwUsage)
{
PWNetEnumerator ret = HeapAlloc(GetProcessHeap(),
HEAP_ZERO_MEMORY, sizeof(WNetEnumerator));
if (ret)
{
ret->enumType = WNET_ENUMERATOR_TYPE_CONTEXT;
ret->dwScope = dwScope;
ret->dwType = dwType;
ret->dwUsage = dwUsage;
}
return ret;
}
/* Thunks the array of wide-string LPNETRESOURCEs lpNetArrayIn into buffer
* lpBuffer, with size *lpBufferSize. lpNetArrayIn contains *lpcCount entries
* to start. On return, *lpcCount reflects the number thunked into lpBuffer.
* Returns WN_SUCCESS on success (all of lpNetArrayIn thunked), WN_MORE_DATA
* if not all members of the array could be thunked, and something else on
* failure.
*/
static DWORD _thunkNetResourceArrayWToA(const NETRESOURCEW *lpNetArrayIn,
const DWORD *lpcCount, LPVOID lpBuffer, const DWORD *lpBufferSize)
{
DWORD i, numToThunk, totalBytes, ret;
LPSTR strNext;
if (!lpNetArrayIn)
return WN_BAD_POINTER;
if (!lpcCount)
return WN_BAD_POINTER;
if (*lpcCount == -1)
return WN_BAD_VALUE;
if (!lpBuffer)
return WN_BAD_POINTER;
if (!lpBufferSize)
return WN_BAD_POINTER;
for (i = 0, numToThunk = 0, totalBytes = 0; i < *lpcCount; i++)
{
const NETRESOURCEW *lpNet = lpNetArrayIn + i;
totalBytes += sizeof(NETRESOURCEA);
if (lpNet->lpLocalName)
totalBytes += WideCharToMultiByte(CP_ACP, 0, lpNet->lpLocalName,
-1, NULL, 0, NULL, NULL);
if (lpNet->lpRemoteName)
totalBytes += WideCharToMultiByte(CP_ACP, 0, lpNet->lpRemoteName,
-1, NULL, 0, NULL, NULL);
if (lpNet->lpComment)
totalBytes += WideCharToMultiByte(CP_ACP, 0, lpNet->lpComment,
-1, NULL, 0, NULL, NULL);
if (lpNet->lpProvider)
totalBytes += WideCharToMultiByte(CP_ACP, 0, lpNet->lpProvider,
-1, NULL, 0, NULL, NULL);
if (totalBytes < *lpBufferSize)
numToThunk = i + 1;
}
strNext = (LPSTR)((LPBYTE)lpBuffer + numToThunk * sizeof(NETRESOURCEA));
for (i = 0; i < numToThunk; i++)
{
LPNETRESOURCEA lpNetOut = (LPNETRESOURCEA)lpBuffer + i;
const NETRESOURCEW *lpNetIn = lpNetArrayIn + i;
memcpy(lpNetOut, lpNetIn, sizeof(NETRESOURCEA));
/* lie about string lengths, we already verified how many
* we have space for above
*/
if (lpNetIn->lpLocalName)
{
lpNetOut->lpLocalName = strNext;
strNext += WideCharToMultiByte(CP_ACP, 0, lpNetIn->lpLocalName, -1,
lpNetOut->lpLocalName, *lpBufferSize, NULL, NULL);
}
if (lpNetIn->lpRemoteName)
{
lpNetOut->lpRemoteName = strNext;
strNext += WideCharToMultiByte(CP_ACP, 0, lpNetIn->lpRemoteName, -1,
lpNetOut->lpRemoteName, *lpBufferSize, NULL, NULL);
}
if (lpNetIn->lpComment)
{
lpNetOut->lpComment = strNext;
strNext += WideCharToMultiByte(CP_ACP, 0, lpNetIn->lpComment, -1,
lpNetOut->lpComment, *lpBufferSize, NULL, NULL);
}
if (lpNetIn->lpProvider)
{
lpNetOut->lpProvider = strNext;
strNext += WideCharToMultiByte(CP_ACP, 0, lpNetIn->lpProvider, -1,
lpNetOut->lpProvider, *lpBufferSize, NULL, NULL);
}
}
ret = numToThunk < *lpcCount ? WN_MORE_DATA : WN_SUCCESS;
TRACE("numToThunk is %d, *lpcCount is %d, returning %d\n", numToThunk,
*lpcCount, ret);
return ret;
}
/* Thunks the array of multibyte-string LPNETRESOURCEs lpNetArrayIn into buffer
* lpBuffer, with size *lpBufferSize. lpNetArrayIn contains *lpcCount entries
* to start. On return, *lpcCount reflects the number thunked into lpBuffer.
* Returns WN_SUCCESS on success (all of lpNetArrayIn thunked), WN_MORE_DATA
* if not all members of the array could be thunked, and something else on
* failure.
*/
static DWORD _thunkNetResourceArrayAToW(const NETRESOURCEA *lpNetArrayIn,
const DWORD *lpcCount, LPVOID lpBuffer, const DWORD *lpBufferSize)
{
DWORD i, numToThunk, totalBytes, ret;
LPWSTR strNext;
if (!lpNetArrayIn)
return WN_BAD_POINTER;
if (!lpcCount)
return WN_BAD_POINTER;
if (*lpcCount == -1)
return WN_BAD_VALUE;
if (!lpBuffer)
return WN_BAD_POINTER;
if (!lpBufferSize)
return WN_BAD_POINTER;
for (i = 0, numToThunk = 0, totalBytes = 0; i < *lpcCount; i++)
{
const NETRESOURCEA *lpNet = lpNetArrayIn + i;
totalBytes += sizeof(NETRESOURCEW);
if (lpNet->lpLocalName)
totalBytes += MultiByteToWideChar(CP_ACP, 0, lpNet->lpLocalName,
-1, NULL, 0) * sizeof(WCHAR);
if (lpNet->lpRemoteName)
totalBytes += MultiByteToWideChar(CP_ACP, 0, lpNet->lpRemoteName,
-1, NULL, 0) * sizeof(WCHAR);
if (lpNet->lpComment)
totalBytes += MultiByteToWideChar(CP_ACP, 0, lpNet->lpComment,
-1, NULL, 0) * sizeof(WCHAR);
if (lpNet->lpProvider)
totalBytes += MultiByteToWideChar(CP_ACP, 0, lpNet->lpProvider,
-1, NULL, 0) * sizeof(WCHAR);
if (totalBytes < *lpBufferSize)
numToThunk = i + 1;
}
strNext = (LPWSTR)((LPBYTE)lpBuffer + numToThunk * sizeof(NETRESOURCEW));
for (i = 0; i < numToThunk; i++)
{
LPNETRESOURCEW lpNetOut = (LPNETRESOURCEW)lpBuffer + i;
const NETRESOURCEA *lpNetIn = lpNetArrayIn + i;
memcpy(lpNetOut, lpNetIn, sizeof(NETRESOURCEW));
/* lie about string lengths, we already verified how many
* we have space for above
*/
if (lpNetIn->lpLocalName)
{
lpNetOut->lpLocalName = strNext;
strNext += MultiByteToWideChar(CP_ACP, 0, lpNetIn->lpLocalName,
-1, lpNetOut->lpLocalName, *lpBufferSize);
}
if (lpNetIn->lpRemoteName)
{
lpNetOut->lpRemoteName = strNext;
strNext += MultiByteToWideChar(CP_ACP, 0, lpNetIn->lpRemoteName,
-1, lpNetOut->lpRemoteName, *lpBufferSize);
}
if (lpNetIn->lpComment)
{
lpNetOut->lpComment = strNext;
strNext += MultiByteToWideChar(CP_ACP, 0, lpNetIn->lpComment,
-1, lpNetOut->lpComment, *lpBufferSize);
}
if (lpNetIn->lpProvider)
{
lpNetOut->lpProvider = strNext;
strNext += MultiByteToWideChar(CP_ACP, 0, lpNetIn->lpProvider,
-1, lpNetOut->lpProvider, *lpBufferSize);
}
}
ret = numToThunk < *lpcCount ? WN_MORE_DATA : WN_SUCCESS;
TRACE("numToThunk is %d, *lpcCount is %d, returning %d\n", numToThunk,
*lpcCount, ret);
return ret;
}
/*********************************************************************
* WNetOpenEnumA [MPR.@]
*
* See comments for WNetOpenEnumW.
*/
DWORD WINAPI WNetOpenEnumA( DWORD dwScope, DWORD dwType, DWORD dwUsage,
LPNETRESOURCEA lpNet, LPHANDLE lphEnum )
{
DWORD ret;
TRACE( "(%08X, %08X, %08X, %p, %p)\n",
dwScope, dwType, dwUsage, lpNet, lphEnum );
if (!lphEnum)
ret = WN_BAD_POINTER;
else if (!providerTable || providerTable->numProviders == 0)
{
*lphEnum = NULL;
ret = WN_NO_NETWORK;
}
else
{
if (lpNet)
{
LPNETRESOURCEW lpNetWide = NULL;
BYTE buf[1024];
DWORD size = sizeof(buf), count = 1;
BOOL allocated = FALSE;
ret = _thunkNetResourceArrayAToW(lpNet, &count, buf, &size);
if (ret == WN_MORE_DATA)
{
lpNetWide = HeapAlloc(GetProcessHeap(), 0,
size);
if (lpNetWide)
{
ret = _thunkNetResourceArrayAToW(lpNet, &count, lpNetWide,
&size);
allocated = TRUE;
}
else
ret = WN_OUT_OF_MEMORY;
}
else if (ret == WN_SUCCESS)
lpNetWide = (LPNETRESOURCEW)buf;
if (ret == WN_SUCCESS)
ret = WNetOpenEnumW(dwScope, dwType, dwUsage, lpNetWide,
lphEnum);
if (allocated)
HeapFree(GetProcessHeap(), 0, lpNetWide);
}
else
ret = WNetOpenEnumW(dwScope, dwType, dwUsage, NULL, lphEnum);
}
if (ret)
SetLastError(ret);
TRACE("Returning %d\n", ret);
return ret;
}
/*********************************************************************
* WNetOpenEnumW [MPR.@]
*
* Network enumeration has way too many parameters, so I'm not positive I got
* them right. What I've got so far:
*
* - If the scope is RESOURCE_GLOBALNET, and no LPNETRESOURCE is passed,
* all the network providers should be enumerated.
*
* - If the scope is RESOURCE_GLOBALNET, and LPNETRESOURCE is passed, and
* and neither the LPNETRESOURCE's lpRemoteName nor the LPNETRESOURCE's
* lpProvider is set, all the network providers should be enumerated.
* (This means the enumeration is a list of network providers, not that the
* enumeration is passed on to the providers.)
*
* - If the scope is RESOURCE_GLOBALNET, and LPNETRESOURCE is passed, and the
* resource matches the "Entire Network" resource (no remote name, no
* provider, comment is the "Entire Network" string), a RESOURCE_GLOBALNET
* enumeration is done on every network provider.
*
* - If the scope is RESOURCE_GLOBALNET, and LPNETRESOURCE is passed, and
* the LPNETRESOURCE's lpProvider is set, enumeration will be passed through
* only to the given network provider.
*
* - If the scope is RESOURCE_GLOBALNET, and LPNETRESOURCE is passed, and
* no lpProvider is set, enumeration will be tried on every network provider,
* in the order in which they're loaded.
*
* - The LPNETRESOURCE should be disregarded for scopes besides
* RESOURCE_GLOBALNET. MSDN states that lpNet must be NULL if dwScope is not
* RESOURCE_GLOBALNET, but Windows doesn't return an error if it isn't NULL.
*
* - If the scope is RESOURCE_CONTEXT, MS includes an "Entire Network" net
* resource in the enumerated list, as well as any machines in your
* workgroup. The machines in your workgroup come from doing a
* RESOURCE_CONTEXT enumeration of every Network Provider.
*/
DWORD WINAPI WNetOpenEnumW( DWORD dwScope, DWORD dwType, DWORD dwUsage,
LPNETRESOURCEW lpNet, LPHANDLE lphEnum )
{
DWORD ret;
TRACE( "(%08X, %08X, %08X, %p, %p)\n",
dwScope, dwType, dwUsage, lpNet, lphEnum );
if (!lphEnum)
ret = WN_BAD_POINTER;
else if (!providerTable || providerTable->numProviders == 0)
{
*lphEnum = NULL;
ret = WN_NO_NETWORK;
}
else
{
switch (dwScope)
{
case RESOURCE_GLOBALNET:
if (lpNet)
{
if (lpNet->lpProvider)
{
DWORD index = _findProviderIndexW(lpNet->lpProvider);
if (index != BAD_PROVIDER_INDEX)
{
if (providerTable->table[index].openEnum &&
providerTable->table[index].dwEnumScopes & WNNC_ENUM_GLOBAL)
{
HANDLE handle;
ret = providerTable->table[index].openEnum(
dwScope, dwType, dwUsage, lpNet, &handle);
if (ret == WN_SUCCESS)
{
*lphEnum = _createProviderEnumerator(
dwScope, dwType, dwUsage, index, handle);
ret = *lphEnum ? WN_SUCCESS :
WN_OUT_OF_MEMORY;
}
}
else
ret = WN_NOT_SUPPORTED;
}
else
ret = WN_BAD_PROVIDER;
}
else if (lpNet->lpRemoteName)
{
*lphEnum = _createGlobalEnumeratorW(dwScope,
dwType, dwUsage, lpNet);
ret = *lphEnum ? WN_SUCCESS : WN_OUT_OF_MEMORY;
}
else
{
if (lpNet->lpComment && !strcmpW(lpNet->lpComment,
providerTable->entireNetwork))
{
/* comment matches the "Entire Network", enumerate
* global scope of every provider
*/
*lphEnum = _createGlobalEnumeratorW(dwScope,
dwType, dwUsage, lpNet);
}
else
{
/* this is the same as not having passed lpNet */
*lphEnum = _createGlobalEnumeratorW(dwScope,
dwType, dwUsage, NULL);
}
ret = *lphEnum ? WN_SUCCESS : WN_OUT_OF_MEMORY;
}
}
else
{
*lphEnum = _createGlobalEnumeratorW(dwScope, dwType,
dwUsage, lpNet);
ret = *lphEnum ? WN_SUCCESS : WN_OUT_OF_MEMORY;
}
break;
case RESOURCE_CONTEXT:
*lphEnum = _createContextEnumerator(dwScope, dwType, dwUsage);
ret = *lphEnum ? WN_SUCCESS : WN_OUT_OF_MEMORY;
break;
case RESOURCE_REMEMBERED:
case RESOURCE_CONNECTED:
*lphEnum = _createNullEnumerator();
ret = *lphEnum ? WN_SUCCESS : WN_OUT_OF_MEMORY;
break;
default:
WARN("unknown scope 0x%08x\n", dwScope);
ret = WN_BAD_VALUE;
}
}
if (ret)
SetLastError(ret);
TRACE("Returning %d\n", ret);
return ret;
}
/*********************************************************************
* WNetEnumResourceA [MPR.@]
*/
DWORD WINAPI WNetEnumResourceA( HANDLE hEnum, LPDWORD lpcCount,
LPVOID lpBuffer, LPDWORD lpBufferSize )
{
DWORD ret;
TRACE( "(%p, %p, %p, %p)\n", hEnum, lpcCount, lpBuffer, lpBufferSize );
if (!hEnum)
ret = WN_BAD_POINTER;
else if (!lpcCount)
ret = WN_BAD_POINTER;
else if (!lpBuffer)
ret = WN_BAD_POINTER;
else if (!lpBufferSize)
ret = WN_BAD_POINTER;
else if (*lpBufferSize < sizeof(NETRESOURCEA))
{
*lpBufferSize = sizeof(NETRESOURCEA);
ret = WN_MORE_DATA;
}
else
{
DWORD localCount = *lpcCount, localSize = *lpBufferSize;
LPVOID localBuffer = HeapAlloc(GetProcessHeap(), 0, localSize);
if (localBuffer)
{
ret = WNetEnumResourceW(hEnum, &localCount, localBuffer,
&localSize);
if (ret == WN_SUCCESS || (ret == WN_MORE_DATA && localCount != -1))
{
/* FIXME: this isn't necessarily going to work in the case of
* WN_MORE_DATA, because our enumerator may have moved on to
* the next provider. MSDN states that a large (16KB) buffer
* size is the appropriate usage of this function, so
* hopefully it won't be an issue.
*/
ret = _thunkNetResourceArrayWToA(localBuffer, &localCount,
lpBuffer, lpBufferSize);
*lpcCount = localCount;
}
HeapFree(GetProcessHeap(), 0, localBuffer);
}
else
ret = WN_OUT_OF_MEMORY;
}
if (ret)
SetLastError(ret);
TRACE("Returning %d\n", ret);
return ret;
}
static DWORD _countProviderBytesW(PWNetProvider provider)
{
DWORD ret;
if (provider)
{
ret = sizeof(NETRESOURCEW);
ret += 2 * (strlenW(provider->name) + 1) * sizeof(WCHAR);
}
else
ret = 0;
return ret;
}
static DWORD _enumerateProvidersW(PWNetEnumerator enumerator, LPDWORD lpcCount,
LPVOID lpBuffer, const DWORD *lpBufferSize)
{
DWORD ret;
if (!enumerator)
return WN_BAD_POINTER;
if (enumerator->enumType != WNET_ENUMERATOR_TYPE_GLOBAL)
return WN_BAD_VALUE;
if (!lpcCount)
return WN_BAD_POINTER;
if (!lpBuffer)
return WN_BAD_POINTER;
if (!lpBufferSize)
return WN_BAD_POINTER;
if (*lpBufferSize < sizeof(NETRESOURCEA))
return WN_MORE_DATA;
if (!providerTable || enumerator->providerIndex >=
providerTable->numProviders)
ret = WN_NO_MORE_ENTRIES;
else
{
DWORD bytes = 0, count = 0, countLimit, i;
LPNETRESOURCEW resource;
LPWSTR strNext;
countLimit = *lpcCount == -1 ?
providerTable->numProviders - enumerator->providerIndex : *lpcCount;
while (count < countLimit && bytes < *lpBufferSize)
{
DWORD bytesNext = _countProviderBytesW(
&providerTable->table[count + enumerator->providerIndex]);
if (bytes + bytesNext < *lpBufferSize)
{
bytes += bytesNext;
count++;
}
}
strNext = (LPWSTR)((LPBYTE)lpBuffer + count * sizeof(NETRESOURCEW));
for (i = 0, resource = lpBuffer; i < count; i++, resource++)
{
resource->dwScope = RESOURCE_GLOBALNET;
resource->dwType = RESOURCETYPE_ANY;
resource->dwDisplayType = RESOURCEDISPLAYTYPE_NETWORK;
resource->dwUsage = RESOURCEUSAGE_CONTAINER |
RESOURCEUSAGE_RESERVED;
resource->lpLocalName = NULL;
resource->lpRemoteName = strNext;
strcpyW(resource->lpRemoteName,
providerTable->table[i + enumerator->providerIndex].name);
strNext += strlenW(resource->lpRemoteName) + 1;
resource->lpComment = NULL;
resource->lpProvider = strNext;
strcpyW(resource->lpProvider,
providerTable->table[i + enumerator->providerIndex].name);
strNext += strlenW(resource->lpProvider) + 1;
}
enumerator->providerIndex += count;
*lpcCount = count;
ret = count > 0 ? WN_SUCCESS : WN_MORE_DATA;
}
TRACE("Returning %d\n", ret);
return ret;
}
/* Advances the enumerator (assumed to be a global enumerator) to the next
* provider that supports the enumeration scope passed to WNetOpenEnum. Does
* not open a handle with the next provider.
* If the existing handle is NULL, may leave the enumerator unchanged, since
* the current provider may support the desired scope.
* If the existing handle is not NULL, closes it before moving on.
* Returns WN_SUCCESS on success, WN_NO_MORE_ENTRIES if there is no available
* provider, and another error on failure.
*/
static DWORD _globalEnumeratorAdvance(PWNetEnumerator enumerator)
{
if (!enumerator)
return WN_BAD_POINTER;
if (enumerator->enumType != WNET_ENUMERATOR_TYPE_GLOBAL)
return WN_BAD_VALUE;
if (!providerTable || enumerator->providerIndex >=
providerTable->numProviders)
return WN_NO_MORE_ENTRIES;
if (enumerator->providerDone)
{
DWORD dwEnum = 0;
enumerator->providerDone = FALSE;
if (enumerator->handle)
{
providerTable->table[enumerator->providerIndex].closeEnum(
enumerator->handle);
enumerator->handle = NULL;
enumerator->providerIndex++;
}
if (enumerator->dwScope == RESOURCE_CONNECTED)
dwEnum = WNNC_ENUM_LOCAL;
else if (enumerator->dwScope == RESOURCE_GLOBALNET)
dwEnum = WNNC_ENUM_GLOBAL;
else if (enumerator->dwScope == RESOURCE_CONTEXT)
dwEnum = WNNC_ENUM_CONTEXT;
for (; enumerator->providerIndex < providerTable->numProviders &&
!(providerTable->table[enumerator->providerIndex].dwEnumScopes
& dwEnum); enumerator->providerIndex++)
;
}
return enumerator->providerIndex < providerTable->numProviders ?
WN_SUCCESS : WN_NO_MORE_ENTRIES;
}
/* "Passes through" call to the next provider that supports the enumeration
* type.
* FIXME: if one call to a provider's enumerator succeeds while there's still
* space in lpBuffer, I don't call to the next provider. The caller may not
* expect that it should call EnumResourceW again with a return value of
* WN_SUCCESS (depending what *lpcCount was to begin with). That means strings
* may have to be moved around a bit, ick.
*/
static DWORD _enumerateGlobalPassthroughW(PWNetEnumerator enumerator,
LPDWORD lpcCount, LPVOID lpBuffer, LPDWORD lpBufferSize)
{
DWORD ret;
if (!enumerator)
return WN_BAD_POINTER;
if (enumerator->enumType != WNET_ENUMERATOR_TYPE_GLOBAL)
return WN_BAD_VALUE;
if (!lpcCount)
return WN_BAD_POINTER;
if (!lpBuffer)
return WN_BAD_POINTER;
if (!lpBufferSize)
return WN_BAD_POINTER;
if (*lpBufferSize < sizeof(NETRESOURCEW))
return WN_MORE_DATA;
ret = _globalEnumeratorAdvance(enumerator);
if (ret == WN_SUCCESS)
{
ret = providerTable->table[enumerator->providerIndex].
openEnum(enumerator->dwScope, enumerator->dwType,
enumerator->dwUsage, enumerator->lpNet,
&enumerator->handle);
if (ret == WN_SUCCESS)
{
ret = providerTable->table[enumerator->providerIndex].
enumResource(enumerator->handle, lpcCount, lpBuffer,
lpBufferSize);
if (ret != WN_MORE_DATA)
enumerator->providerDone = TRUE;
}
}
TRACE("Returning %d\n", ret);
return ret;
}
static DWORD _enumerateGlobalW(PWNetEnumerator enumerator, LPDWORD lpcCount,
LPVOID lpBuffer, LPDWORD lpBufferSize)
{
DWORD ret;
if (!enumerator)
return WN_BAD_POINTER;
if (enumerator->enumType != WNET_ENUMERATOR_TYPE_GLOBAL)
return WN_BAD_VALUE;
if (!lpcCount)
return WN_BAD_POINTER;
if (!lpBuffer)
return WN_BAD_POINTER;
if (!lpBufferSize)
return WN_BAD_POINTER;
if (*lpBufferSize < sizeof(NETRESOURCEW))
return WN_MORE_DATA;
if (!providerTable)
return WN_NO_NETWORK;
switch (enumerator->dwScope)
{
case RESOURCE_GLOBALNET:
if (enumerator->lpNet)
ret = _enumerateGlobalPassthroughW(enumerator, lpcCount,
lpBuffer, lpBufferSize);
else
ret = _enumerateProvidersW(enumerator, lpcCount, lpBuffer,
lpBufferSize);
break;
case RESOURCE_CONTEXT:
ret = _enumerateGlobalPassthroughW(enumerator, lpcCount, lpBuffer,
lpBufferSize);
break;
default:
WARN("unexpected scope 0x%08x\n", enumerator->dwScope);
ret = WN_NO_MORE_ENTRIES;
}
TRACE("Returning %d\n", ret);
return ret;
}
static DWORD _enumerateProviderW(PWNetEnumerator enumerator, LPDWORD lpcCount,
LPVOID lpBuffer, LPDWORD lpBufferSize)
{
if (!enumerator)
return WN_BAD_POINTER;
if (enumerator->enumType != WNET_ENUMERATOR_TYPE_PROVIDER)
return WN_BAD_VALUE;
if (!enumerator->handle)
return WN_BAD_VALUE;
if (!lpcCount)
return WN_BAD_POINTER;
if (!lpBuffer)
return WN_BAD_POINTER;
if (!lpBufferSize)
return WN_BAD_POINTER;
if (!providerTable)
return WN_NO_NETWORK;
if (enumerator->providerIndex >= providerTable->numProviders)
return WN_NO_MORE_ENTRIES;
if (!providerTable->table[enumerator->providerIndex].enumResource)
return WN_BAD_VALUE;
return providerTable->table[enumerator->providerIndex].enumResource(
enumerator->handle, lpcCount, lpBuffer, lpBufferSize);
}
static DWORD _enumerateContextW(PWNetEnumerator enumerator, LPDWORD lpcCount,
LPVOID lpBuffer, LPDWORD lpBufferSize)
{
DWORD ret;
size_t cchEntireNetworkLen, bytesNeeded;
if (!enumerator)
return WN_BAD_POINTER;
if (enumerator->enumType != WNET_ENUMERATOR_TYPE_CONTEXT)
return WN_BAD_VALUE;
if (!lpcCount)
return WN_BAD_POINTER;
if (!lpBuffer)
return WN_BAD_POINTER;
if (!lpBufferSize)
return WN_BAD_POINTER;
if (!providerTable)
return WN_NO_NETWORK;
cchEntireNetworkLen = strlenW(providerTable->entireNetwork) + 1;
bytesNeeded = sizeof(NETRESOURCEW) + cchEntireNetworkLen * sizeof(WCHAR);
if (*lpBufferSize < bytesNeeded)
{
*lpBufferSize = bytesNeeded;
ret = WN_MORE_DATA;
}
else
{
LPNETRESOURCEW lpNet = lpBuffer;
lpNet->dwScope = RESOURCE_GLOBALNET;
lpNet->dwType = enumerator->dwType;
lpNet->dwDisplayType = RESOURCEDISPLAYTYPE_ROOT;
lpNet->dwUsage = RESOURCEUSAGE_CONTAINER;
lpNet->lpLocalName = NULL;
lpNet->lpRemoteName = NULL;
lpNet->lpProvider = NULL;
/* odd, but correct: put comment at end of buffer, so it won't get
* overwritten by subsequent calls to a provider's enumResource
*/
lpNet->lpComment = (LPWSTR)((LPBYTE)lpBuffer + *lpBufferSize -
(cchEntireNetworkLen * sizeof(WCHAR)));
strcpyW(lpNet->lpComment, providerTable->entireNetwork);
ret = WN_SUCCESS;
}
if (ret == WN_SUCCESS)
{
DWORD bufferSize = *lpBufferSize - bytesNeeded;
/* "Entire Network" entry enumerated--morph this into a global
* enumerator. enumerator->lpNet continues to be NULL, since it has
* no meaning when the scope isn't RESOURCE_GLOBALNET.
*/
enumerator->enumType = WNET_ENUMERATOR_TYPE_GLOBAL;
ret = _enumerateGlobalW(enumerator, lpcCount,
(LPBYTE)lpBuffer + bytesNeeded, &bufferSize);
if (ret == WN_SUCCESS)
{
/* reflect the fact that we already enumerated "Entire Network" */
(*lpcCount)++;
*lpBufferSize = bufferSize + bytesNeeded;
}
else
{
/* the provider enumeration failed, but we already succeeded in
* enumerating "Entire Network"--leave type as global to allow a
* retry, but indicate success with a count of one.
*/
ret = WN_SUCCESS;
*lpcCount = 1;
*lpBufferSize = bytesNeeded;
}
}
TRACE("Returning %d\n", ret);
return ret;
}
/*********************************************************************
* WNetEnumResourceW [MPR.@]
*/
DWORD WINAPI WNetEnumResourceW( HANDLE hEnum, LPDWORD lpcCount,
LPVOID lpBuffer, LPDWORD lpBufferSize )
{
DWORD ret;
TRACE( "(%p, %p, %p, %p)\n", hEnum, lpcCount, lpBuffer, lpBufferSize );
if (!hEnum)
ret = WN_BAD_POINTER;
else if (!lpcCount)
ret = WN_BAD_POINTER;
else if (!lpBuffer)
ret = WN_BAD_POINTER;
else if (!lpBufferSize)
ret = WN_BAD_POINTER;
else if (*lpBufferSize < sizeof(NETRESOURCEW))
{
*lpBufferSize = sizeof(NETRESOURCEW);
ret = WN_MORE_DATA;
}
else
{
PWNetEnumerator enumerator = (PWNetEnumerator)hEnum;
switch (enumerator->enumType)
{
case WNET_ENUMERATOR_TYPE_NULL:
ret = WN_NO_MORE_ENTRIES;
break;
case WNET_ENUMERATOR_TYPE_GLOBAL:
ret = _enumerateGlobalW(enumerator, lpcCount, lpBuffer,
lpBufferSize);
break;
case WNET_ENUMERATOR_TYPE_PROVIDER:
ret = _enumerateProviderW(enumerator, lpcCount, lpBuffer,
lpBufferSize);
break;
case WNET_ENUMERATOR_TYPE_CONTEXT:
ret = _enumerateContextW(enumerator, lpcCount, lpBuffer,
lpBufferSize);
break;
default:
WARN("bogus enumerator type!\n");
ret = WN_NO_NETWORK;
}
}
if (ret)
SetLastError(ret);
TRACE("Returning %d\n", ret);
return ret;
}
/*********************************************************************
* WNetCloseEnum [MPR.@]
*/
DWORD WINAPI WNetCloseEnum( HANDLE hEnum )
{
DWORD ret;
TRACE( "(%p)\n", hEnum );
if (hEnum)
{
PWNetEnumerator enumerator = (PWNetEnumerator)hEnum;
switch (enumerator->enumType)
{
case WNET_ENUMERATOR_TYPE_NULL:
ret = WN_SUCCESS;
break;
case WNET_ENUMERATOR_TYPE_GLOBAL:
if (enumerator->lpNet)
_freeEnumNetResource(enumerator->lpNet);
if (enumerator->handle)
providerTable->table[enumerator->providerIndex].
closeEnum(enumerator->handle);
ret = WN_SUCCESS;
break;
case WNET_ENUMERATOR_TYPE_PROVIDER:
if (enumerator->handle)
providerTable->table[enumerator->providerIndex].
closeEnum(enumerator->handle);
ret = WN_SUCCESS;
break;
default:
WARN("bogus enumerator type!\n");
ret = WN_BAD_HANDLE;
}
HeapFree(GetProcessHeap(), 0, hEnum);
}
else
ret = WN_BAD_HANDLE;
if (ret)
SetLastError(ret);
TRACE("Returning %d\n", ret);
return ret;
}
/*********************************************************************
* WNetGetResourceInformationA [MPR.@]
*
* See WNetGetResourceInformationW
*/
DWORD WINAPI WNetGetResourceInformationA( LPNETRESOURCEA lpNetResource,
LPVOID lpBuffer, LPDWORD cbBuffer,
LPSTR *lplpSystem )
{
DWORD ret;
TRACE( "(%p, %p, %p, %p)\n",
lpNetResource, lpBuffer, cbBuffer, lplpSystem );
if (!providerTable || providerTable->numProviders == 0)
ret = WN_NO_NETWORK;
else if (lpNetResource)
{
LPNETRESOURCEW lpNetResourceW = NULL;
DWORD size = 1024, count = 1;
DWORD len;
lpNetResourceW = HeapAlloc(GetProcessHeap(), 0, size);
ret = _thunkNetResourceArrayAToW(lpNetResource, &count, lpNetResourceW, &size);
if (ret == WN_MORE_DATA)
{
HeapFree(GetProcessHeap(), 0, lpNetResourceW);
lpNetResourceW = HeapAlloc(GetProcessHeap(), 0, size);
if (lpNetResourceW)
ret = _thunkNetResourceArrayAToW(lpNetResource,
&count, lpNetResourceW, &size);
else
ret = WN_OUT_OF_MEMORY;
}
if (ret == WN_SUCCESS)
{
LPWSTR lpSystemW = NULL;
LPVOID lpBufferW;
size = 1024;
lpBufferW = HeapAlloc(GetProcessHeap(), 0, size);
if (lpBufferW)
{
ret = WNetGetResourceInformationW(lpNetResourceW,
lpBufferW, &size, &lpSystemW);
if (ret == WN_MORE_DATA)
{
HeapFree(GetProcessHeap(), 0, lpBufferW);
lpBufferW = HeapAlloc(GetProcessHeap(), 0, size);
if (lpBufferW)
ret = WNetGetResourceInformationW(lpNetResourceW,
lpBufferW, &size, &lpSystemW);
else
ret = WN_OUT_OF_MEMORY;
}
if (ret == WN_SUCCESS)
{
ret = _thunkNetResourceArrayWToA(lpBufferW,
&count, lpBuffer, cbBuffer);
HeapFree(GetProcessHeap(), 0, lpNetResourceW);
lpNetResourceW = lpBufferW;
size = sizeof(NETRESOURCEA);
size += WideCharToMultiByte(CP_ACP, 0, lpNetResourceW->lpRemoteName,
-1, NULL, 0, NULL, NULL);
size += WideCharToMultiByte(CP_ACP, 0, lpNetResourceW->lpProvider,
-1, NULL, 0, NULL, NULL);
len = WideCharToMultiByte(CP_ACP, 0, lpSystemW,
-1, NULL, 0, NULL, NULL);
if ((len) && ( size + len < *cbBuffer))
{
*lplpSystem = (char*)lpBuffer + *cbBuffer - len;
WideCharToMultiByte(CP_ACP, 0, lpSystemW, -1,
*lplpSystem, len, NULL, NULL);
ret = WN_SUCCESS;
}
else
ret = WN_MORE_DATA;
}
else
ret = WN_OUT_OF_MEMORY;
HeapFree(GetProcessHeap(), 0, lpBufferW);
}
else
ret = WN_OUT_OF_MEMORY;
HeapFree(GetProcessHeap(), 0, lpSystemW);
}
HeapFree(GetProcessHeap(), 0, lpNetResourceW);
}
else
ret = WN_NO_NETWORK;
if (ret)
SetLastError(ret);
TRACE("Returning %d\n", ret);
return ret;
}
/*********************************************************************
* WNetGetResourceInformationW [MPR.@]
*
* WNetGetResourceInformationW function identifies the network provider
* that owns the resource and gets information about the type of the resource.
*
* PARAMS:
* lpNetResource [ I] the pointer to NETRESOURCEW structure, that
* defines a network resource.
* lpBuffer [ O] the pointer to buffer, containing result. It
* contains NETRESOURCEW structure and strings to
* which the members of the NETRESOURCEW structure
* point.
* cbBuffer [I/O] the pointer to DWORD number - size of buffer
* in bytes.
* lplpSystem [ O] the pointer to string in the output buffer,
* containing the part of the resource name without
* names of the server and share.
*
* RETURNS:
* NO_ERROR if the function succeeds. System error code if the function fails.
*/
DWORD WINAPI WNetGetResourceInformationW( LPNETRESOURCEW lpNetResource,
LPVOID lpBuffer, LPDWORD cbBuffer,
LPWSTR *lplpSystem )
{
DWORD ret = WN_NO_NETWORK;
DWORD index;
TRACE( "(%p, %p, %p, %p)\n",
lpNetResource, lpBuffer, cbBuffer, lplpSystem);
if (!(lpBuffer))
ret = WN_OUT_OF_MEMORY;
else if (providerTable != NULL)
{
/* FIXME: For function value of a variable is indifferent, it does
* search of all providers in a network.
*/
for (index = 0; index < providerTable->numProviders; index++)
{
if(providerTable->table[index].getCaps(WNNC_DIALOG) &
WNNC_DLG_GETRESOURCEINFORMATION)
{
if (providerTable->table[index].getResourceInformation)
ret = providerTable->table[index].getResourceInformation(
lpNetResource, lpBuffer, cbBuffer, lplpSystem);
else
ret = WN_NO_NETWORK;
if (ret == WN_SUCCESS)
break;
}
}
}
if (ret)
SetLastError(ret);
return ret;
}
/*********************************************************************
* WNetGetResourceParentA [MPR.@]
*/
DWORD WINAPI WNetGetResourceParentA( LPNETRESOURCEA lpNetResource,
LPVOID lpBuffer, LPDWORD lpBufferSize )
{
FIXME( "(%p, %p, %p): stub\n",
lpNetResource, lpBuffer, lpBufferSize );
SetLastError(WN_NO_NETWORK);
return WN_NO_NETWORK;
}
/*********************************************************************
* WNetGetResourceParentW [MPR.@]
*/
DWORD WINAPI WNetGetResourceParentW( LPNETRESOURCEW lpNetResource,
LPVOID lpBuffer, LPDWORD lpBufferSize )
{
FIXME( "(%p, %p, %p): stub\n",
lpNetResource, lpBuffer, lpBufferSize );
SetLastError(WN_NO_NETWORK);
return WN_NO_NETWORK;
}
/*
* Connection Functions
*/
/*********************************************************************
* WNetAddConnectionA [MPR.@]
*/
DWORD WINAPI WNetAddConnectionA( LPCSTR lpRemoteName, LPCSTR lpPassword,
LPCSTR lpLocalName )
{
FIXME( "(%s, %p, %s): stub\n",
debugstr_a(lpRemoteName), lpPassword, debugstr_a(lpLocalName) );
SetLastError(WN_NO_NETWORK);
return WN_NO_NETWORK;
}
/*********************************************************************
* WNetAddConnectionW [MPR.@]
*/
DWORD WINAPI WNetAddConnectionW( LPCWSTR lpRemoteName, LPCWSTR lpPassword,
LPCWSTR lpLocalName )
{
FIXME( "(%s, %p, %s): stub\n",
debugstr_w(lpRemoteName), lpPassword, debugstr_w(lpLocalName) );
SetLastError(WN_NO_NETWORK);
return WN_NO_NETWORK;
}
/*********************************************************************
* WNetAddConnection2A [MPR.@]
*/
DWORD WINAPI WNetAddConnection2A( LPNETRESOURCEA lpNetResource,
LPCSTR lpPassword, LPCSTR lpUserID,
DWORD dwFlags )
{
FIXME( "(%p, %p, %s, 0x%08X): stub\n",
lpNetResource, lpPassword, debugstr_a(lpUserID), dwFlags );
SetLastError(WN_NO_NETWORK);
return WN_NO_NETWORK;
}
/*********************************************************************
* WNetAddConnection2W [MPR.@]
*/
DWORD WINAPI WNetAddConnection2W( LPNETRESOURCEW lpNetResource,
LPCWSTR lpPassword, LPCWSTR lpUserID,
DWORD dwFlags )
{
FIXME( "(%p, %p, %s, 0x%08X): stub\n",
lpNetResource, lpPassword, debugstr_w(lpUserID), dwFlags );
SetLastError(WN_NO_NETWORK);
return WN_NO_NETWORK;
}
/*********************************************************************
* WNetAddConnection3A [MPR.@]
*/
DWORD WINAPI WNetAddConnection3A( HWND hwndOwner, LPNETRESOURCEA lpNetResource,
LPCSTR lpPassword, LPCSTR lpUserID,
DWORD dwFlags )
{
FIXME( "(%p, %p, %p, %s, 0x%08X), stub\n",
hwndOwner, lpNetResource, lpPassword, debugstr_a(lpUserID), dwFlags );
SetLastError(WN_NO_NETWORK);
return WN_NO_NETWORK;
}
/*********************************************************************
* WNetAddConnection3W [MPR.@]
*/
DWORD WINAPI WNetAddConnection3W( HWND hwndOwner, LPNETRESOURCEW lpNetResource,
LPCWSTR lpPassword, LPCWSTR lpUserID,
DWORD dwFlags )
{
FIXME( "(%p, %p, %p, %s, 0x%08X), stub\n",
hwndOwner, lpNetResource, lpPassword, debugstr_w(lpUserID), dwFlags );
SetLastError(WN_NO_NETWORK);
return WN_NO_NETWORK;
}
/*****************************************************************
* WNetUseConnectionA [MPR.@]
*/
DWORD WINAPI WNetUseConnectionA( HWND hwndOwner, LPNETRESOURCEA lpNetResource,
LPCSTR lpPassword, LPCSTR lpUserID, DWORD dwFlags,
LPSTR lpAccessName, LPDWORD lpBufferSize,
LPDWORD lpResult )
{
FIXME( "(%p, %p, %p, %s, 0x%08X, %s, %p, %p), stub\n",
hwndOwner, lpNetResource, lpPassword, debugstr_a(lpUserID), dwFlags,
debugstr_a(lpAccessName), lpBufferSize, lpResult );
SetLastError(WN_NO_NETWORK);
return WN_NO_NETWORK;
}
/*****************************************************************
* WNetUseConnectionW [MPR.@]
*/
DWORD WINAPI WNetUseConnectionW( HWND hwndOwner, LPNETRESOURCEW lpNetResource,
LPCWSTR lpPassword, LPCWSTR lpUserID, DWORD dwFlags,
LPWSTR lpAccessName, LPDWORD lpBufferSize,
LPDWORD lpResult )
{
FIXME( "(%p, %p, %p, %s, 0x%08X, %s, %p, %p), stub\n",
hwndOwner, lpNetResource, lpPassword, debugstr_w(lpUserID), dwFlags,
debugstr_w(lpAccessName), lpBufferSize, lpResult );
SetLastError(WN_NO_NETWORK);
return WN_NO_NETWORK;
}
/*********************************************************************
* WNetCancelConnectionA [MPR.@]
*/
DWORD WINAPI WNetCancelConnectionA( LPCSTR lpName, BOOL fForce )
{
FIXME( "(%s, %d), stub\n", debugstr_a(lpName), fForce );
return WN_SUCCESS;
}
/*********************************************************************
* WNetCancelConnectionW [MPR.@]
*/
DWORD WINAPI WNetCancelConnectionW( LPCWSTR lpName, BOOL fForce )
{
FIXME( "(%s, %d), stub\n", debugstr_w(lpName), fForce );
return WN_SUCCESS;
}
/*********************************************************************
* WNetCancelConnection2A [MPR.@]
*/
DWORD WINAPI WNetCancelConnection2A( LPCSTR lpName, DWORD dwFlags, BOOL fForce )
{
FIXME( "(%s, %08X, %d), stub\n", debugstr_a(lpName), dwFlags, fForce );
return WN_SUCCESS;
}
/*********************************************************************
* WNetCancelConnection2W [MPR.@]
*/
DWORD WINAPI WNetCancelConnection2W( LPCWSTR lpName, DWORD dwFlags, BOOL fForce )
{
FIXME( "(%s, %08X, %d), stub\n", debugstr_w(lpName), dwFlags, fForce );
return WN_SUCCESS;
}
/*****************************************************************
* WNetRestoreConnectionA [MPR.@]
*/
DWORD WINAPI WNetRestoreConnectionA( HWND hwndOwner, LPCSTR lpszDevice )
{
FIXME( "(%p, %s), stub\n", hwndOwner, debugstr_a(lpszDevice) );
SetLastError(WN_NO_NETWORK);
return WN_NO_NETWORK;
}
/*****************************************************************
* WNetRestoreConnectionW [MPR.@]
*/
DWORD WINAPI WNetRestoreConnectionW( HWND hwndOwner, LPCWSTR lpszDevice )
{
FIXME( "(%p, %s), stub\n", hwndOwner, debugstr_w(lpszDevice) );
SetLastError(WN_NO_NETWORK);
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;
}
/* find the network connection for a given drive; helper for WNetGetConnection */
static DWORD get_drive_connection( WCHAR letter, LPWSTR remote, LPDWORD size )
{
char buffer[1024];
struct mountmgr_unix_drive *data = (struct mountmgr_unix_drive *)buffer;
HANDLE mgr;
DWORD ret = WN_NOT_CONNECTED;
if ((mgr = CreateFileW( MOUNTMGR_DOS_DEVICE_NAME, GENERIC_READ|GENERIC_WRITE,
FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
0, 0 )) == INVALID_HANDLE_VALUE)
{
ERR( "failed to open mount manager err %u\n", GetLastError() );
return ret;
}
memset( data, 0, sizeof(*data) );
data->letter = letter;
if (DeviceIoControl( mgr, IOCTL_MOUNTMGR_QUERY_UNIX_DRIVE, data, sizeof(*data),
data, sizeof(buffer), NULL, NULL ))
{
char *p, *mount_point = buffer + data->mount_point_offset;
DWORD len;
if (data->mount_point_offset && !strncmp( mount_point, "unc/", 4 ))
{
mount_point += 2;
mount_point[0] = '\\';
for (p = mount_point; *p; p++) if (*p == '/') *p = '\\';
len = MultiByteToWideChar( CP_UNIXCP, 0, mount_point, -1, NULL, 0 );
if (len > *size)
{
*size = len;
ret = WN_MORE_DATA;
}
else
{
*size = MultiByteToWideChar( CP_UNIXCP, 0, mount_point, -1, remote, *size);
ret = WN_SUCCESS;
}
}
}
CloseHandle( mgr );
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:
ret = get_drive_connection( lpLocalName[0], lpRemoteName, lpBufferSize );
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 = 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 = 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;
}
if (err != WN_NO_ERROR) 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;
}
/*********************************************************************
* WNetGetLastErrorA [MPR.@]
*/
DWORD WINAPI WNetGetLastErrorA( LPDWORD lpError,
LPSTR lpErrorBuf, DWORD nErrorBufSize,
LPSTR lpNameBuf, DWORD nNameBufSize )
{
FIXME( "(%p, %p, %d, %p, %d): stub\n",
lpError, lpErrorBuf, nErrorBufSize, lpNameBuf, nNameBufSize );
SetLastError(WN_NO_NETWORK);
return WN_NO_NETWORK;
}
/*********************************************************************
* WNetGetLastErrorW [MPR.@]
*/
DWORD WINAPI WNetGetLastErrorW( LPDWORD lpError,
LPWSTR lpErrorBuf, DWORD nErrorBufSize,
LPWSTR lpNameBuf, DWORD nNameBufSize )
{
FIXME( "(%p, %p, %d, %p, %d): stub\n",
lpError, lpErrorBuf, nErrorBufSize, lpNameBuf, nNameBufSize );
SetLastError(WN_NO_NETWORK);
return WN_NO_NETWORK;
}
/*********************************************************************
* WNetGetNetworkInformationA [MPR.@]
*/
DWORD WINAPI WNetGetNetworkInformationA( LPCSTR lpProvider,
LPNETINFOSTRUCT lpNetInfoStruct )
{
DWORD ret;
TRACE( "(%s, %p)\n", debugstr_a(lpProvider), lpNetInfoStruct );
if (!lpProvider)
ret = WN_BAD_POINTER;
else
{
int len;
len = MultiByteToWideChar(CP_ACP, 0, lpProvider, -1, NULL, 0);
if (len)
{
LPWSTR wideProvider = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
if (wideProvider)
{
MultiByteToWideChar(CP_ACP, 0, lpProvider, -1, wideProvider,
len);
ret = WNetGetNetworkInformationW(wideProvider, lpNetInfoStruct);
HeapFree(GetProcessHeap(), 0, wideProvider);
}
else
ret = WN_OUT_OF_MEMORY;
}
else
ret = GetLastError();
}
if (ret)
SetLastError(ret);
TRACE("Returning %d\n", ret);
return ret;
}
/*********************************************************************
* WNetGetNetworkInformationW [MPR.@]
*/
DWORD WINAPI WNetGetNetworkInformationW( LPCWSTR lpProvider,
LPNETINFOSTRUCT lpNetInfoStruct )
{
DWORD ret;
TRACE( "(%s, %p)\n", debugstr_w(lpProvider), lpNetInfoStruct );
if (!lpProvider)
ret = WN_BAD_POINTER;
else if (!lpNetInfoStruct)
ret = WN_BAD_POINTER;
else if (lpNetInfoStruct->cbStructure < sizeof(NETINFOSTRUCT))
ret = WN_BAD_VALUE;
else
{
if (providerTable && providerTable->numProviders)
{
DWORD providerIndex = _findProviderIndexW(lpProvider);
if (providerIndex != BAD_PROVIDER_INDEX)
{
lpNetInfoStruct->cbStructure = sizeof(NETINFOSTRUCT);
lpNetInfoStruct->dwProviderVersion =
providerTable->table[providerIndex].dwSpecVersion;
lpNetInfoStruct->dwStatus = NO_ERROR;
lpNetInfoStruct->dwCharacteristics = 0;
lpNetInfoStruct->dwHandle = 0;
lpNetInfoStruct->wNetType =
HIWORD(providerTable->table[providerIndex].dwNetType);
lpNetInfoStruct->dwPrinters = -1;
lpNetInfoStruct->dwDrives = -1;
ret = WN_SUCCESS;
}
else
ret = WN_BAD_PROVIDER;
}
else
ret = WN_NO_NETWORK;
}
if (ret)
SetLastError(ret);
TRACE("Returning %d\n", ret);
return ret;
}
/*****************************************************************
* WNetGetProviderNameA [MPR.@]
*/
DWORD WINAPI WNetGetProviderNameA( DWORD dwNetType,
LPSTR lpProvider, LPDWORD lpBufferSize )
{
DWORD ret;
TRACE("(0x%08x, %s, %p)\n", dwNetType, debugstr_a(lpProvider),
lpBufferSize);
if (!lpProvider)
ret = WN_BAD_POINTER;
else if (!lpBufferSize)
ret = WN_BAD_POINTER;
else
{
if (providerTable)
{
DWORD i;
ret = WN_NO_NETWORK;
for (i = 0; i < providerTable->numProviders &&
HIWORD(providerTable->table[i].dwNetType) != HIWORD(dwNetType);
i++)
;
if (i < providerTable->numProviders)
{
DWORD sizeNeeded = WideCharToMultiByte(CP_ACP, 0,
providerTable->table[i].name, -1, NULL, 0, NULL, NULL);
if (*lpBufferSize < sizeNeeded)
{
*lpBufferSize = sizeNeeded;
ret = WN_MORE_DATA;
}
else
{
WideCharToMultiByte(CP_ACP, 0, providerTable->table[i].name,
-1, lpProvider, *lpBufferSize, NULL, NULL);
ret = WN_SUCCESS;
/* FIXME: is *lpBufferSize set to the number of characters
* copied? */
}
}
}
else
ret = WN_NO_NETWORK;
}
if (ret)
SetLastError(ret);
TRACE("Returning %d\n", ret);
return ret;
}
/*****************************************************************
* WNetGetProviderNameW [MPR.@]
*/
DWORD WINAPI WNetGetProviderNameW( DWORD dwNetType,
LPWSTR lpProvider, LPDWORD lpBufferSize )
{
DWORD ret;
TRACE("(0x%08x, %s, %p)\n", dwNetType, debugstr_w(lpProvider),
lpBufferSize);
if (!lpProvider)
ret = WN_BAD_POINTER;
else if (!lpBufferSize)
ret = WN_BAD_POINTER;
else
{
if (providerTable)
{
DWORD i;
ret = WN_NO_NETWORK;
for (i = 0; i < providerTable->numProviders &&
HIWORD(providerTable->table[i].dwNetType) != HIWORD(dwNetType);
i++)
;
if (i < providerTable->numProviders)
{
DWORD sizeNeeded = strlenW(providerTable->table[i].name) + 1;
if (*lpBufferSize < sizeNeeded)
{
*lpBufferSize = sizeNeeded;
ret = WN_MORE_DATA;
}
else
{
strcpyW(lpProvider, providerTable->table[i].name);
ret = WN_SUCCESS;
/* FIXME: is *lpBufferSize set to the number of characters
* copied? */
}
}
}
else
ret = WN_NO_NETWORK;
}
if (ret)
SetLastError(ret);
TRACE("Returning %d\n", ret);
return ret;
}
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