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[RTL]
Implement LdrEnumResources svn path=/trunk/; revision=57552
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@ -283,18 +283,220 @@ LdrFindResourceDirectory_U(IN PVOID BaseAddress,
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}
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/*
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* @unimplemented
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*/
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#define NAME_FROM_RESOURCE_ENTRY(RootDirectory, Entry) \
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((Entry)->NameIsString ? (ULONG_PTR)(RootDirectory) + (Entry)->NameOffset : (Entry)->Id)
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static
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LONG
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LdrpCompareResourceNames_U(
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_In_ PUCHAR ResourceData,
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_In_ PIMAGE_RESOURCE_DIRECTORY_ENTRY Entry,
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_In_ ULONG_PTR CompareName)
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{
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PIMAGE_RESOURCE_DIR_STRING_U ResourceString;
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PWSTR String1, String2;
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USHORT ResourceStringLength;
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WCHAR Char1, Char2;
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/* Check if the resource name is an ID */
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if (CompareName <= USHRT_MAX)
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{
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/* Just compare the 2 IDs */
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return (CompareName - Entry->Id);
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}
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else
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{
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/* Fail if ResourceName2 is an ID */
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if (Entry->Id <= USHRT_MAX) return -1;
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/* Get the resource string */
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ResourceString = (PIMAGE_RESOURCE_DIR_STRING_U)(ResourceData +
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Entry->NameOffset);
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/* Get the string length */
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ResourceStringLength = ResourceString->Length;
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String1 = ResourceString->NameString;
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String2 = (PWSTR)CompareName;
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/* Loop all characters of the resource string */
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while (ResourceStringLength--)
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{
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/* Get the next characters */
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Char1 = *String1++;
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Char2 = *String2++;
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/* Check if they don't match, or if the compare string ends */
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if ((Char1 != Char2) || (Char2 == 0))
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{
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/* They don't match, fail */
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return Char2 - Char1;
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}
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}
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/* All characters match, check if the compare string ends here */
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return (*String2 == 0) ? 0 : 1;
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}
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}
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NTSTATUS
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NTAPI
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LdrEnumResources(
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IN PVOID BaseAddress,
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IN PLDR_RESOURCE_INFO ResourceInfo,
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IN ULONG Level,
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IN OUT PULONG ResourceCount,
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OUT PLDR_ENUM_RESOURCE_INFO Resources OPTIONAL)
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_In_ PVOID ImageBase,
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_In_ PLDR_RESOURCE_INFO ResourceInfo,
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_In_ ULONG Level,
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_Inout_ ULONG *ResourceCount,
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_Out_opt_ LDR_ENUM_RESOURCE_INFO *Resources)
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{
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UNIMPLEMENTED;
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return STATUS_NOT_IMPLEMENTED;
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PUCHAR ResourceData;
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NTSTATUS Status;
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ULONG i, j, k;
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ULONG NumberOfTypeEntries, NumberOfNameEntries, NumberOfLangEntries;
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ULONG Count, MaxResourceCount;
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PIMAGE_RESOURCE_DIRECTORY TypeDirectory, NameDirectory, LangDirectory;
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PIMAGE_RESOURCE_DIRECTORY_ENTRY TypeEntry, NameEntry, LangEntry;
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PIMAGE_RESOURCE_DATA_ENTRY DataEntry;
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ULONG Size;
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LONG Result;
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/* If the caller wants data, get the maximum count of entries */
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MaxResourceCount = (Resources != NULL) ? *ResourceCount : 0;
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/* Default to 0 */
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*ResourceCount = 0;
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/* Locate the resource directory */
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ResourceData = RtlImageDirectoryEntryToData(ImageBase,
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TRUE,
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IMAGE_DIRECTORY_ENTRY_RESOURCE,
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&Size);
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if (ResourceData == NULL)
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return STATUS_RESOURCE_DATA_NOT_FOUND;
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/* The type directory is at the root, followed by the entries */
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TypeDirectory = (PIMAGE_RESOURCE_DIRECTORY)ResourceData;
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TypeEntry = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(TypeDirectory + 1);
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/* Get the number of entries in the type directory */
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NumberOfTypeEntries = TypeDirectory->NumberOfNamedEntries +
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TypeDirectory->NumberOfIdEntries;
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/* Start with 0 resources and status success */
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Status = STATUS_SUCCESS;
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Count = 0;
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/* Loop all entries in the type directory */
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for (i = 0; i < NumberOfTypeEntries; ++i, ++TypeEntry)
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{
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/* Check if comparison of types is requested */
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if (Level > RESOURCE_TYPE_LEVEL)
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{
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/* Compare the type with the requested Type */
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Result = LdrpCompareResourceNames_U(ResourceData,
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TypeEntry,
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ResourceInfo->Type);
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/* Not equal, continue with next entry */
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if (Result != 0) continue;
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}
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/* The entry must point to the name directory */
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if (!TypeEntry->DataIsDirectory)
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{
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return STATUS_INVALID_IMAGE_FORMAT;
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}
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/* Get a pointer to the name subdirectory and it's first entry */
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NameDirectory = (PIMAGE_RESOURCE_DIRECTORY)(ResourceData +
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TypeEntry->OffsetToDirectory);
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NameEntry = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(NameDirectory + 1);
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/* Get the number of entries in the name directory */
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NumberOfNameEntries = NameDirectory->NumberOfNamedEntries +
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NameDirectory->NumberOfIdEntries;
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/* Loop all entries in the name directory */
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for (j = 0; j < NumberOfNameEntries; ++j, ++NameEntry)
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{
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/* Check if comparison of names is requested */
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if (Level > RESOURCE_NAME_LEVEL)
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{
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/* Compare the name with the requested name */
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Result = LdrpCompareResourceNames_U(ResourceData,
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NameEntry,
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ResourceInfo->Name);
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/* Not equal, continue with next entry */
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if (Result != 0) continue;
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}
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/* The entry must point to the language directory */
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if (!NameEntry->DataIsDirectory)
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{
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return STATUS_INVALID_IMAGE_FORMAT;
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}
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/* Get a pointer to the language subdirectory and it's first entry */
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LangDirectory = (PIMAGE_RESOURCE_DIRECTORY)(ResourceData +
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NameEntry->OffsetToDirectory);
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LangEntry = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(LangDirectory + 1);
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/* Get the number of entries in the language directory */
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NumberOfLangEntries = LangDirectory->NumberOfNamedEntries +
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LangDirectory->NumberOfIdEntries;
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/* Loop all entries in the language directory */
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for (k = 0; k < NumberOfLangEntries; ++k, ++LangEntry)
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{
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/* Check if comparison of languages is requested */
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if (Level > RESOURCE_LANGUAGE_LEVEL)
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{
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/* Compare the language with the requested language */
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Result = LdrpCompareResourceNames_U(ResourceData,
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LangEntry,
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ResourceInfo->Language);
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/* Not equal, continue with next entry */
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if (Result != 0) continue;
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}
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/* This entry must point to data */
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if (LangEntry->DataIsDirectory)
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{
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return STATUS_INVALID_IMAGE_FORMAT;
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}
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/* Get a pointer to the data entry */
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DataEntry = (PIMAGE_RESOURCE_DATA_ENTRY)(ResourceData +
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LangEntry->OffsetToData);
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/* Check if there is still space to store the data */
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if (Count < MaxResourceCount)
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{
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/* There is, fill the entry */
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Resources[Count].Type =
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NAME_FROM_RESOURCE_ENTRY(ResourceData, TypeEntry);
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Resources[Count].Name =
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NAME_FROM_RESOURCE_ENTRY(ResourceData, NameEntry);
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Resources[Count].Language =
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NAME_FROM_RESOURCE_ENTRY(ResourceData, LangEntry);
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Resources[Count].Data = (PUCHAR)ImageBase + DataEntry->OffsetToData;
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Resources[Count].Reserved = 0;
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Resources[Count].Size = DataEntry->Size;
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}
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else
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{
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/* There is not enough space, save error status */
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Status = STATUS_INFO_LENGTH_MISMATCH;
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}
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/* Count this resource */
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++Count;
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}
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}
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}
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/* Return the number of matching resources */
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*ResourceCount = Count;
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return Status;
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}
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