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712 lines
24 KiB
712 lines
24 KiB
/*
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Copyright (c) Microsoft Corporation
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*/
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#include "stdinc.h"
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//
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// ISSUE - 2002/05/20 - jonwis - SxsLookupClrGuid could be a little smarter - if you
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// don't pass either of the "look for class" or "look for guid" flags, it simply
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// returns NOT_FOUND, rather than INVALID_PARAMETER. PaulKe pointed this out,
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// but notes that it doesn't really matter. The reason it's an issue is that
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// SxsFindClrClassInformation has a similar pattern, but requires you to set
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// exactly one of its "look for" flags, and fails if none of them are set.
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//
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typedef CFusionArray<BYTE> CStackBackingBuffer;
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#define WRITE_INTO_BUFFER(cursor, target, length, source, leftover) \
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(target) = (cursor); \
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RtlCopyMemory(cursor, source, length); \
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leftover -= (length); \
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INTERNAL_ERROR_CHECK((length % sizeof(WCHAR) == 0)); \
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(cursor) = (PWSTR)(((ULONG_PTR)(cursor)) + length); \
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*(cursor)++ = UNICODE_NULL;
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BOOL
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SxspLookupAssemblyIdentityInActCtx(
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HANDLE hActCtx,
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ULONG ulRosterIndex,
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CStringBuffer &TargetString
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)
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{
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FN_PROLOG_WIN32
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SIZE_T cbRequired = 0;
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bool fMoreSpaceRequired = false;
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CStackBackingBuffer TargetRegion;
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PCACTIVATION_CONTEXT_ASSEMBLY_DETAILED_INFORMATION pDetailedInfo = NULL;
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TargetString.Clear();
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IFW32FALSE_EXIT_UNLESS2(
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QueryActCtxW(
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0,
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hActCtx,
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(PVOID)&ulRosterIndex,
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AssemblyDetailedInformationInActivationContext,
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TargetRegion.GetArrayPtr(),
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TargetRegion.GetSize(),
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&cbRequired),
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LIST_1(ERROR_INSUFFICIENT_BUFFER),
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fMoreSpaceRequired);
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if (fMoreSpaceRequired)
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{
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IFW32FALSE_EXIT(TargetRegion.Win32SetSize(cbRequired, CStackBackingBuffer::eSetSizeModeExact));
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IFW32FALSE_EXIT(
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QueryActCtxW(
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0,
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hActCtx,
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(PVOID)&ulRosterIndex,
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AssemblyDetailedInformationInActivationContext,
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TargetRegion.GetArrayPtr(),
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TargetRegion.GetSize(),
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&cbRequired));
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}
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pDetailedInfo = (PCACTIVATION_CONTEXT_ASSEMBLY_DETAILED_INFORMATION)TargetRegion.GetArrayPtr();
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IFW32FALSE_EXIT(TargetString.Win32Assign(
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pDetailedInfo->lpAssemblyEncodedAssemblyIdentity,
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pDetailedInfo->ulEncodedAssemblyIdentityLength / sizeof(WCHAR)));
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FN_EPILOG
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}
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BOOL
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WINAPI
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SxsFindClrClassInformation(
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DWORD dwFlags,
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PVOID pvSearchData,
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HANDLE hActivationContext,
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PVOID pvDataBuffer,
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SIZE_T cbDataBuffer,
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PSIZE_T pcbDataBufferWrittenOrRequired
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)
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{
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FN_PROLOG_WIN32
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SIZE_T cbRequired = 0;
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CStringBuffer AssemblyIdentity;
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CFusionActCtxScope ActivationScope;
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CFusionActCtxHandle UsedHandleDuringSearch;
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GUID GuidToSearch;
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ACTCTX_SECTION_KEYED_DATA KeyedData = {sizeof(KeyedData)};
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PSXS_CLR_CLASS_INFORMATION pOutputStruct = NULL;
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PCACTIVATION_CONTEXT_DATA_COM_SERVER_REDIRECTION pComServerRedirect = NULL;
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PCACTIVATION_CONTEXT_DATA_COM_SERVER_REDIRECTION_SHIM pClrShim = NULL;
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if (pcbDataBufferWrittenOrRequired)
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*pcbDataBufferWrittenOrRequired = 0;
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PARAMETER_CHECK(pvSearchData != NULL);
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PARAMETER_CHECK(pvDataBuffer || (cbDataBuffer == 0));
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IFINVALID_FLAGS_EXIT_WIN32(dwFlags,
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SXS_FIND_CLR_CLASS_SEARCH_PROGID |
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SXS_FIND_CLR_CLASS_SEARCH_GUID |
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SXS_FIND_CLR_CLASS_ACTIVATE_ACTCTX |
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SXS_FIND_CLR_CLASS_GET_IDENTITY |
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SXS_FIND_CLR_CLASS_GET_PROGID |
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SXS_FIND_CLR_CLASS_GET_RUNTIME_VERSION |
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SXS_FIND_CLR_CLASS_GET_TYPE_NAME);
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//
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// Can't be both... I'm sure there's a logic thing I could do smarter here, but ohwell.
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//
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if ((dwFlags & SXS_FIND_CLR_CLASS_SEARCH_PROGID) && (dwFlags & SXS_FIND_CLR_CLASS_SEARCH_GUID))
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{
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ORIGINATE_WIN32_FAILURE_AND_EXIT(CantSearchBothProgidAndGuid, ERROR_INVALID_PARAMETER);
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}
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// But it has to be at least one of these.
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//
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else if ((dwFlags & (SXS_FIND_CLR_CLASS_SEARCH_PROGID | SXS_FIND_CLR_CLASS_SEARCH_GUID)) == 0)
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{
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ORIGINATE_WIN32_FAILURE_AND_EXIT(MustHaveAtLeastOneSearchTypeSet, ERROR_INVALID_PARAMETER);
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}
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//
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//
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// Activate if necessary
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//
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if (dwFlags & SXS_FIND_CLR_CLASS_ACTIVATE_ACTCTX)
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{
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IFW32FALSE_EXIT(ActivationScope.Win32Activate(hActivationContext));
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AddRefActCtx(hActivationContext);
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UsedHandleDuringSearch = hActivationContext;
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}
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else
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{
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IFW32FALSE_EXIT(GetCurrentActCtx(&UsedHandleDuringSearch));
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}
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//
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// Aha, they wanted a progid search
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//
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if (dwFlags & SXS_FIND_CLR_CLASS_SEARCH_PROGID)
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{
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PCACTIVATION_CONTEXT_DATA_COM_PROGID_REDIRECTION pProgidFound = NULL;
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IFW32FALSE_EXIT(
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FindActCtxSectionStringW(
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0,
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NULL,
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ACTIVATION_CONTEXT_SECTION_COM_PROGID_REDIRECTION,
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(LPCWSTR)pvSearchData,
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&KeyedData));
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pProgidFound = (PCACTIVATION_CONTEXT_DATA_COM_PROGID_REDIRECTION)KeyedData.lpData;
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GuidToSearch = *(LPGUID)(((ULONG_PTR)KeyedData.lpSectionBase) + pProgidFound->ConfiguredClsidOffset);
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}
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//
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// They handed us a GUID instead
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//
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else if (dwFlags & SXS_FIND_CLR_CLASS_SEARCH_GUID)
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{
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GuidToSearch = *(LPGUID)pvSearchData;
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}
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// Hmm.. we validated these flags above, how could we possibly get here?
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//
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else
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{
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INTERNAL_ERROR_CHECK(FALSE);
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}
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//
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//
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// Now that we've got the guids, let's look in the GUID clr class table for more information
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//
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RtlZeroMemory(&KeyedData, sizeof(KeyedData));
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KeyedData.cbSize = sizeof(KeyedData);
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IFW32FALSE_EXIT(
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FindActCtxSectionGuid(
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0,
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NULL,
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ACTIVATION_CONTEXT_SECTION_COM_SERVER_REDIRECTION,
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&GuidToSearch,
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&KeyedData));
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pComServerRedirect = (PCACTIVATION_CONTEXT_DATA_COM_SERVER_REDIRECTION)KeyedData.lpData;
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//
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// What do we want to do here if you've asked for a CLR class and yet there's no surrogate
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// information??
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//
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if (pComServerRedirect->ShimDataOffset == 0)
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{
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ORIGINATE_WIN32_FAILURE_AND_EXIT(ThisGuidIsNotAClrClass, ERROR_SXS_KEY_NOT_FOUND);
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}
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pClrShim = (PCACTIVATION_CONTEXT_DATA_COM_SERVER_REDIRECTION_SHIM)(((ULONG_PTR)pComServerRedirect) + pComServerRedirect->ShimDataOffset);
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//
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// Now we've got all the stuff we need. Calculate the required size of things.
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//
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cbRequired = sizeof(SXS_CLR_CLASS_INFORMATION);
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if ((dwFlags & SXS_FIND_CLR_CLASS_GET_PROGID) && (pComServerRedirect->ProgIdLength > 0))
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cbRequired += pComServerRedirect->ProgIdLength + sizeof(WCHAR);
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if (dwFlags & SXS_FIND_CLR_CLASS_GET_IDENTITY)
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{
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IFW32FALSE_EXIT(
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SxspLookupAssemblyIdentityInActCtx(
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UsedHandleDuringSearch,
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KeyedData.ulAssemblyRosterIndex,
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AssemblyIdentity));
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if (AssemblyIdentity.Cch() > 0) {
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cbRequired += (AssemblyIdentity.Cch() + 1) * sizeof(WCHAR);
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}
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}
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if ((dwFlags & SXS_FIND_CLR_CLASS_GET_RUNTIME_VERSION) && (pClrShim->ShimVersionLength > 0))
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cbRequired += pClrShim->ShimVersionLength + sizeof(WCHAR);
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if ((dwFlags & SXS_FIND_CLR_CLASS_GET_TYPE_NAME) && (pClrShim->TypeLength > 0))
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cbRequired += pClrShim->TypeLength + sizeof(WCHAR);
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//
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// Is there enough space in the outbound buffer?
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//
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if (cbRequired <= cbDataBuffer)
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{
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PWSTR pwszCursor;
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SIZE_T cbRemaining = cbDataBuffer;
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pOutputStruct = (PSXS_CLR_CLASS_INFORMATION)pvDataBuffer;
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pwszCursor = (PWSTR)(pOutputStruct + 1);
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cbRemaining -= sizeof(SXS_CLR_CLASS_INFORMATION);
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pOutputStruct->ReferenceClsid = pComServerRedirect->ReferenceClsid;
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pOutputStruct->dwFlags = 0;
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pOutputStruct->dwSize = sizeof(*pOutputStruct);
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pOutputStruct->ulThreadingModel = pComServerRedirect->ThreadingModel;
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pOutputStruct->ulType = pClrShim->Type;
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if (dwFlags & SXS_FIND_CLR_CLASS_GET_IDENTITY)
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{
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SIZE_T cbWritten;
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pOutputStruct->pcwszImplementingAssembly = pwszCursor;
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IFW32FALSE_EXIT(
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AssemblyIdentity.Win32CopyIntoBuffer(
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&pwszCursor,
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&cbRemaining,
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&cbWritten,
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NULL,
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NULL,
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NULL));
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}
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else
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pOutputStruct->pcwszImplementingAssembly = NULL;
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if (dwFlags & SXS_FIND_CLR_CLASS_GET_PROGID)
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{
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WRITE_INTO_BUFFER(
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pwszCursor,
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pOutputStruct->pcwszProgId,
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pComServerRedirect->ProgIdLength,
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(PVOID)(((ULONG_PTR)pComServerRedirect) + pComServerRedirect->ProgIdOffset),
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cbRemaining);
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}
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else
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pOutputStruct->pcwszProgId = NULL;
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if (dwFlags & SXS_FIND_CLR_CLASS_GET_RUNTIME_VERSION)
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{
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WRITE_INTO_BUFFER(
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pwszCursor,
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pOutputStruct->pcwszRuntimeVersion,
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pClrShim->ShimVersionLength,
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(PVOID)(((ULONG_PTR)pClrShim) + pClrShim->ShimVersionOffset),
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cbRemaining);
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}
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else
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pOutputStruct->pcwszRuntimeVersion = NULL;
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if (dwFlags & SXS_FIND_CLR_CLASS_GET_TYPE_NAME)
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{
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WRITE_INTO_BUFFER(
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pwszCursor,
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pOutputStruct->pcwszTypeName,
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pClrShim->TypeLength,
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(PVOID)(((ULONG_PTR)pClrShim) + pClrShim->TypeOffset),
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cbRemaining);
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}
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else
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pOutputStruct->pcwszTypeName = NULL;
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if (pcbDataBufferWrittenOrRequired)
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*pcbDataBufferWrittenOrRequired = cbRequired;
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}
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else
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{
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if (pcbDataBufferWrittenOrRequired)
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*pcbDataBufferWrittenOrRequired = cbRequired;
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ORIGINATE_WIN32_FAILURE_AND_EXIT(NotEnoughSpaceInOutboundBuffer, ERROR_INSUFFICIENT_BUFFER);
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}
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FN_EPILOG
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}
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BOOL
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WINAPI
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SxsFindClrSurrogateInformation(
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DWORD dwFlags,
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LPGUID lpGuidToFind,
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HANDLE hActivationContext,
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PVOID pvDataBuffer,
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SIZE_T cbDataBuffer,
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PSIZE_T pcbDataBufferWrittenOrRequired
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)
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{
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FN_PROLOG_WIN32
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SIZE_T cbRequired = 0;
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PSXS_CLR_SURROGATE_INFORMATION pOutputStruct = NULL;
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PCACTIVATION_CONTEXT_DATA_CLR_SURROGATE pSurrogateInfo = NULL;
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ACTCTX_SECTION_KEYED_DATA KeyedData = {sizeof(KeyedData)};
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CFusionActCtxScope ActCtxScope;
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CFusionActCtxHandle UsedActivationContext;
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CStringBuffer AssemblyIdentity;
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if (pcbDataBufferWrittenOrRequired != NULL)
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*pcbDataBufferWrittenOrRequired = 0;
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//
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// The data buffer has to be present, or the data buffer size has to be zero,
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// and the written-or-required value must be present as well.
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//
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PARAMETER_CHECK(lpGuidToFind != NULL);
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PARAMETER_CHECK(pvDataBuffer || (cbDataBuffer == 0));
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IFINVALID_FLAGS_EXIT_WIN32(dwFlags,
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SXS_FIND_CLR_SURROGATE_USE_ACTCTX |
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SXS_FIND_CLR_SURROGATE_GET_IDENTITY |
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SXS_FIND_CLR_SURROGATE_GET_RUNTIME_VERSION |
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SXS_FIND_CLR_SURROGATE_GET_TYPE_NAME);
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//
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// Steps we take here:
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// - Activate the actctx if required.
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// - Find the surrogate that corresponds to this progid
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// - Calculate required size of data
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// - If there's enough space, then start copying into the output blob
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// - Otherwise, set the "required" size and error out with ERROR_INSUFFICIENT_BUFFER
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//
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//
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// If we were told to use the actctx, then activate it over this function,
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// and get a reference to it into UsedActivationContext so we can query with
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// it later.
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//
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if (dwFlags & SXS_FIND_CLR_SURROGATE_USE_ACTCTX)
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{
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IFW32FALSE_EXIT(ActCtxScope.Win32Activate(hActivationContext));
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AddRefActCtx(hActivationContext);
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UsedActivationContext = hActivationContext;
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}
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//
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// Otherwise, grab the current actctx and go to town. This addrefs the activation
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// context, so we can let UsedActivationContext's destructor release it on the
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// exit path.
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//
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else
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{
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IFW32FALSE_EXIT(GetCurrentActCtx(&UsedActivationContext));
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}
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//
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// Initially, we require at least this amount of space.
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//
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cbRequired += sizeof(SXS_CLR_SURROGATE_INFORMATION);
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IFW32FALSE_EXIT(
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FindActCtxSectionGuid(
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0,
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NULL,
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ACTIVATION_CONTEXT_SECTION_CLR_SURROGATES,
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lpGuidToFind,
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&KeyedData));
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//
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// Start totalling up the size
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//
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pSurrogateInfo = (PCACTIVATION_CONTEXT_DATA_CLR_SURROGATE)KeyedData.lpData;
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if ((dwFlags & SXS_FIND_CLR_SURROGATE_GET_TYPE_NAME) && (pSurrogateInfo->TypeNameLength > 0))
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cbRequired += pSurrogateInfo->TypeNameLength + sizeof(WCHAR);
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if ((dwFlags & SXS_FIND_CLR_SURROGATE_GET_RUNTIME_VERSION) && (pSurrogateInfo->VersionLength > 0))
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cbRequired += pSurrogateInfo->VersionLength + sizeof(WCHAR);
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if (dwFlags & SXS_FIND_CLR_SURROGATE_GET_IDENTITY)
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{
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IFW32FALSE_EXIT(
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SxspLookupAssemblyIdentityInActCtx(
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UsedActivationContext,
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KeyedData.ulAssemblyRosterIndex,
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AssemblyIdentity));
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if (AssemblyIdentity.Cch() > 0)
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{
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cbRequired += (AssemblyIdentity.Cch() + 1) * sizeof(WCHAR);
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}
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}
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//
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// Go stomp the gathered data into the right places
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//
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if (cbRequired <= cbDataBuffer)
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{
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PWSTR pwszOutputCursor;
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SIZE_T cbRemaining = cbDataBuffer;
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SIZE_T cbWritten = 0;
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pOutputStruct = (PSXS_CLR_SURROGATE_INFORMATION)pvDataBuffer;
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pwszOutputCursor = (PWSTR)(pOutputStruct + 1);
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pOutputStruct->cbSize = sizeof(SXS_CLR_SURROGATE_INFORMATION);
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pOutputStruct->dwFlags = 0;
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pOutputStruct->SurrogateIdent = pSurrogateInfo->SurrogateIdent;
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//
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// Write things into the output buffer
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//
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if ((dwFlags & SXS_FIND_CLR_SURROGATE_GET_IDENTITY) && (AssemblyIdentity.Cch() > 0))
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{
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pOutputStruct->pcwszImplementingAssembly = pwszOutputCursor;
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IFW32FALSE_EXIT(
|
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AssemblyIdentity.Win32CopyIntoBuffer(
|
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&pwszOutputCursor,
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&cbRemaining,
|
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&cbWritten,
|
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NULL, NULL, NULL));
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}
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else
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pOutputStruct->pcwszImplementingAssembly = NULL;
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|
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if (dwFlags & SXS_FIND_CLR_SURROGATE_GET_TYPE_NAME)
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{
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WRITE_INTO_BUFFER(
|
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pwszOutputCursor,
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pOutputStruct->pcwszSurrogateType,
|
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pSurrogateInfo->TypeNameLength,
|
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(PVOID)(((ULONG_PTR)pSurrogateInfo) + pSurrogateInfo->TypeNameOffset),
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cbRemaining);
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}
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else
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pOutputStruct->pcwszSurrogateType = NULL;
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if (dwFlags & SXS_FIND_CLR_SURROGATE_GET_RUNTIME_VERSION)
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{
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WRITE_INTO_BUFFER(
|
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pwszOutputCursor,
|
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pOutputStruct->pcwszRuntimeVersion,
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pSurrogateInfo->VersionLength,
|
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(PVOID)(((ULONG_PTR)pSurrogateInfo) + pSurrogateInfo->VersionOffset),
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cbRemaining);
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}
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else
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pOutputStruct->pcwszRuntimeVersion = NULL;
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|
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if (pcbDataBufferWrittenOrRequired)
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*pcbDataBufferWrittenOrRequired = cbRequired;
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}
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else
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{
|
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if (pcbDataBufferWrittenOrRequired)
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*pcbDataBufferWrittenOrRequired = cbRequired;
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ORIGINATE_WIN32_FAILURE_AND_EXIT(NotEnoughSpaceInOutputBuffer, ERROR_INSUFFICIENT_BUFFER);
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}
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FN_EPILOG
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|
}
|
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|
|
|
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BOOL
|
|
WINAPI
|
|
SxsLookupClrGuid(
|
|
DWORD dwFlags,
|
|
LPGUID pClsid,
|
|
HANDLE hActCtx,
|
|
PVOID pvOutputBuffer,
|
|
SIZE_T cbOutputBuffer,
|
|
PSIZE_T pcbOutputBuffer
|
|
)
|
|
{
|
|
FN_PROLOG_WIN32
|
|
|
|
if (pcbOutputBuffer)
|
|
*pcbOutputBuffer = 0;
|
|
|
|
CStackBackingBuffer BackingBuffer;
|
|
DWORD dwLastError;
|
|
SIZE_T cbRequired = 0;
|
|
PSXS_GUID_INFORMATION_CLR pOutputTarget = NULL;
|
|
PCWSTR pcwszRuntimeVersion = NULL;
|
|
PCWSTR pcwszTypeName = NULL;
|
|
PCWSTR pcwszAssemblyName = NULL;
|
|
SIZE_T cchRuntimeVersion = 0;
|
|
SIZE_T cchTypeName = 0;
|
|
SIZE_T cchAssemblyName = 0;
|
|
|
|
enum {
|
|
eFoundSurrogate,
|
|
eFoundClrClass,
|
|
eNotFound
|
|
} FoundThingType = eNotFound;
|
|
|
|
PARAMETER_CHECK(pvOutputBuffer || (cbOutputBuffer == 0));
|
|
PARAMETER_CHECK(pClsid != NULL);
|
|
IFINVALID_FLAGS_EXIT_WIN32(dwFlags,
|
|
SXS_LOOKUP_CLR_GUID_USE_ACTCTX |
|
|
SXS_LOOKUP_CLR_GUID_FIND_SURROGATE |
|
|
SXS_LOOKUP_CLR_GUID_FIND_CLR_CLASS |
|
|
SXS_LOOKUP_CLR_GUID_FIND_ANY);
|
|
//
|
|
// Nothing found yet, let's look into the surrogate data tables first
|
|
//
|
|
if ((FoundThingType == eNotFound) && ((dwFlags & SXS_LOOKUP_CLR_GUID_FIND_SURROGATE) != 0))
|
|
{
|
|
IFW32FALSE_EXIT_UNLESS3(
|
|
SxsFindClrSurrogateInformation(
|
|
SXS_FIND_CLR_SURROGATE_GET_ALL | ((dwFlags & SXS_LOOKUP_CLR_GUID_USE_ACTCTX) ? SXS_FIND_CLR_SURROGATE_USE_ACTCTX : 0),
|
|
pClsid,
|
|
hActCtx,
|
|
BackingBuffer.GetArrayPtr(),
|
|
BackingBuffer.GetSize(),
|
|
&cbRequired),
|
|
LIST_3(ERROR_SXS_SECTION_NOT_FOUND, ERROR_SXS_KEY_NOT_FOUND, ERROR_INSUFFICIENT_BUFFER),
|
|
dwLastError);
|
|
|
|
//
|
|
// If we found the key and section, but the buffer was too small, resize and try again
|
|
//
|
|
if (dwLastError == ERROR_INSUFFICIENT_BUFFER)
|
|
{
|
|
IFW32FALSE_EXIT(BackingBuffer.Win32SetSize(cbRequired, CStackBackingBuffer::eSetSizeModeExact));
|
|
|
|
IFW32FALSE_EXIT_UNLESS3(
|
|
SxsFindClrSurrogateInformation(
|
|
SXS_FIND_CLR_SURROGATE_GET_ALL | ((dwFlags & SXS_LOOKUP_CLR_GUID_USE_ACTCTX) ? SXS_FIND_CLR_SURROGATE_USE_ACTCTX : 0),
|
|
pClsid,
|
|
hActCtx,
|
|
BackingBuffer.GetArrayPtr(),
|
|
BackingBuffer.GetSize(),
|
|
&cbRequired),
|
|
LIST_2(ERROR_SXS_SECTION_NOT_FOUND, ERROR_SXS_KEY_NOT_FOUND),
|
|
dwLastError);
|
|
}
|
|
|
|
//
|
|
// Great - we either succeeded during the first call, or we succeeded after
|
|
// resizing our buffers. Gather information, set the type, and continue.
|
|
//
|
|
if (dwLastError == ERROR_SUCCESS)
|
|
{
|
|
//
|
|
// At this point, BackingBuffer contains goop about a CLR surrogate. Ensure that
|
|
// our output buffer is large enough, and then fill it out.
|
|
//
|
|
PCSXS_CLR_SURROGATE_INFORMATION pSurrogateInfo =
|
|
(PCSXS_CLR_SURROGATE_INFORMATION)BackingBuffer.GetArrayPtr();
|
|
|
|
pcwszAssemblyName = pSurrogateInfo->pcwszImplementingAssembly;
|
|
pcwszTypeName = pSurrogateInfo->pcwszSurrogateType;
|
|
pcwszRuntimeVersion = pSurrogateInfo->pcwszRuntimeVersion;
|
|
FoundThingType = eFoundSurrogate;
|
|
}
|
|
}
|
|
|
|
//
|
|
// We've yet to find anything, and the flags say we can look up a clr class
|
|
//
|
|
if ((FoundThingType == eNotFound) && ((dwFlags & SXS_LOOKUP_CLR_GUID_FIND_CLR_CLASS) != 0))
|
|
{
|
|
IFW32FALSE_EXIT_UNLESS3(
|
|
SxsFindClrClassInformation(
|
|
SXS_FIND_CLR_CLASS_SEARCH_GUID | SXS_FIND_CLR_CLASS_GET_ALL | ((dwFlags & SXS_LOOKUP_CLR_GUID_USE_ACTCTX) ? SXS_FIND_CLR_CLASS_ACTIVATE_ACTCTX : 0),
|
|
(PVOID)pClsid,
|
|
hActCtx,
|
|
BackingBuffer.GetArrayPtr(),
|
|
BackingBuffer.GetSize(),
|
|
&cbRequired),
|
|
LIST_3(ERROR_INSUFFICIENT_BUFFER, ERROR_SXS_SECTION_NOT_FOUND, ERROR_SXS_KEY_NOT_FOUND),
|
|
dwLastError);
|
|
|
|
if (dwLastError == ERROR_INSUFFICIENT_BUFFER)
|
|
{
|
|
IFW32FALSE_EXIT(BackingBuffer.Win32SetSize(cbRequired, CStackBackingBuffer::eSetSizeModeExact));
|
|
|
|
IFW32FALSE_EXIT_UNLESS3(
|
|
SxsFindClrClassInformation(
|
|
SXS_FIND_CLR_CLASS_SEARCH_GUID | SXS_FIND_CLR_CLASS_GET_ALL | ((dwFlags & SXS_LOOKUP_CLR_GUID_USE_ACTCTX) ? SXS_FIND_CLR_CLASS_ACTIVATE_ACTCTX : 0),
|
|
(PVOID)pClsid,
|
|
hActCtx,
|
|
BackingBuffer.GetArrayPtr(),
|
|
BackingBuffer.GetSize(),
|
|
&cbRequired),
|
|
LIST_2(ERROR_SXS_SECTION_NOT_FOUND, ERROR_SXS_KEY_NOT_FOUND),
|
|
dwLastError);
|
|
}
|
|
|
|
//
|
|
// We succeeded, either after the first query, or after resizing.
|
|
//
|
|
if (dwLastError == ERROR_SUCCESS)
|
|
{
|
|
PCSXS_CLR_CLASS_INFORMATION pClassInfo =
|
|
(PCSXS_CLR_CLASS_INFORMATION)BackingBuffer.GetArrayPtr();
|
|
FoundThingType = eFoundClrClass;
|
|
pcwszAssemblyName = pClassInfo->pcwszImplementingAssembly;
|
|
pcwszRuntimeVersion = pClassInfo->pcwszRuntimeVersion;
|
|
pcwszTypeName = pClassInfo->pcwszTypeName;
|
|
}
|
|
}
|
|
|
|
//
|
|
// If we got to this point and didn't find anything, then error out with a reasonable
|
|
// error code.
|
|
//
|
|
if (FoundThingType == eNotFound)
|
|
{
|
|
ORIGINATE_WIN32_FAILURE_AND_EXIT(DidntFindObject, ERROR_NOT_FOUND);
|
|
}
|
|
|
|
//
|
|
// Calculate some sizes - string lengths, etc.
|
|
//
|
|
cbRequired = sizeof(SXS_GUID_INFORMATION_CLR);
|
|
cchAssemblyName = StringLength(pcwszAssemblyName);
|
|
cchRuntimeVersion = StringLength(pcwszRuntimeVersion);
|
|
cchTypeName = StringLength(pcwszTypeName);
|
|
cbRequired += (cchAssemblyName + cchRuntimeVersion + cchTypeName + 3) * sizeof(WCHAR);
|
|
|
|
//
|
|
// If there was enough space, start stomping data into the output buffer
|
|
//
|
|
if (cbRequired <= cbOutputBuffer)
|
|
{
|
|
PWSTR pwszCursor;
|
|
pOutputTarget = (PSXS_GUID_INFORMATION_CLR)pvOutputBuffer;
|
|
pwszCursor = (PWSTR)(pOutputTarget + 1);
|
|
|
|
pOutputTarget->cbSize = sizeof(*pOutputTarget);
|
|
pOutputTarget->dwFlags = 0;
|
|
|
|
switch (FoundThingType) {
|
|
case eFoundClrClass:
|
|
pOutputTarget->dwFlags |= SXS_GUID_INFORMATION_CLR_FLAG_IS_CLASS;
|
|
break;
|
|
case eFoundSurrogate:
|
|
pOutputTarget->dwFlags |= SXS_GUID_INFORMATION_CLR_FLAG_IS_SURROGATE;
|
|
break;
|
|
default:
|
|
INTERNAL_ERROR_CHECK(FALSE);
|
|
break;
|
|
}
|
|
|
|
//
|
|
// This grossness is unfortunately required.
|
|
//
|
|
pOutputTarget->pcwszAssemblyIdentity = pwszCursor;
|
|
wcscpy(pwszCursor, pcwszAssemblyName);
|
|
pwszCursor += cchAssemblyName + 1;
|
|
|
|
pOutputTarget->pcwszRuntimeVersion= pwszCursor;
|
|
wcscpy(pwszCursor, pcwszRuntimeVersion);
|
|
pwszCursor += cchRuntimeVersion+ 1;
|
|
|
|
pOutputTarget->pcwszTypeName = pwszCursor;
|
|
wcscpy(pwszCursor, pcwszTypeName);
|
|
pwszCursor += cchTypeName + 1;
|
|
|
|
if (pcbOutputBuffer)
|
|
*pcbOutputBuffer = cbRequired;
|
|
|
|
}
|
|
else
|
|
{
|
|
if (pcbOutputBuffer)
|
|
*pcbOutputBuffer = cbRequired;
|
|
|
|
ORIGINATE_WIN32_FAILURE_AND_EXIT(NotEnoughSpaceInOutputBuffer, ERROR_INSUFFICIENT_BUFFER);
|
|
}
|
|
|
|
FN_EPILOG
|
|
}
|
|
|