#include "precomp.h"
-// Global Variables
-RTL_GENERIC_TABLE PrintProcessorTable;
+// Local Variables
+static LIST_ENTRY _PrintProcessorList;
/**
* @name _OpenEnvironment
return bReturnValue;
}
-/**
- * @name _PrinterTableCompareRoutine
- *
- * RTL_GENERIC_COMPARE_ROUTINE for the Print Processor Table.
- * Does a case-insensitive comparison, because e.g. LocalEnumPrintProcessorDatatypes doesn't match the case when looking for Print Processors.
- */
-static RTL_GENERIC_COMPARE_RESULTS NTAPI
-_PrintProcessorTableCompareRoutine(PRTL_GENERIC_TABLE Table, PVOID FirstStruct, PVOID SecondStruct)
+BOOL
+FindDatatype(PLOCAL_PRINT_PROCESSOR pPrintProcessor, PWSTR pwszDatatype)
{
- PLOCAL_PRINT_PROCESSOR A = (PLOCAL_PRINT_PROCESSOR)FirstStruct;
- PLOCAL_PRINT_PROCESSOR B = (PLOCAL_PRINT_PROCESSOR)SecondStruct;
+ DWORD i;
+ PDATATYPES_INFO_1W pCurrentDatatype = pPrintProcessor->pDatatypesInfo1;
- int iResult = wcsicmp(A->pwszName, B->pwszName);
+ for (i = 0; i < pPrintProcessor->dwDatatypeCount; i++)
+ {
+ if (wcsicmp(pCurrentDatatype->pName, pwszDatatype) == 0)
+ return TRUE;
- if (iResult < 0)
- return GenericLessThan;
- else if (iResult > 0)
- return GenericGreaterThan;
- else
- return GenericEqual;
+ ++pCurrentDatatype;
+ }
+
+ return FALSE;
}
-/**
- * @name _DatatypeTableCompareRoutine
- *
- * RTL_GENERIC_COMPARE_ROUTINE for the Datatype Table.
- * Does a case-insensitive comparison, because e.g. LocalOpenPrinter doesn't match the case when looking for Datatypes.
- */
-static RTL_GENERIC_COMPARE_RESULTS NTAPI
-_DatatypeTableCompareRoutine(PRTL_GENERIC_TABLE Table, PVOID FirstStruct, PVOID SecondStruct)
+PLOCAL_PRINT_PROCESSOR
+FindPrintProcessor(PWSTR pwszName)
{
- PWSTR A = (PWSTR)FirstStruct;
- PWSTR B = (PWSTR)SecondStruct;
+ PLIST_ENTRY pEntry;
+ PLOCAL_PRINT_PROCESSOR pPrintProcessor;
+
+ for (pEntry = _PrintProcessorList.Flink; pEntry; pEntry = pEntry->Flink)
+ {
+ pPrintProcessor = CONTAINING_RECORD(pEntry, LOCAL_PRINT_PROCESSOR, Entry);
- int iResult = wcsicmp(A, B);
+ if (wcsicmp(pPrintProcessor->pwszName, pwszName) == 0)
+ return pPrintProcessor;
+ }
- if (iResult < 0)
- return GenericLessThan;
- else if (iResult > 0)
- return GenericGreaterThan;
- else
- return GenericEqual;
+ return NULL;
}
/**
- * @name InitializePrintProcessorTable
+ * @name InitializePrintProcessorList
*
- * Initializes a RTL_GENERIC_TABLE of locally available Print Processors.
- * The table is searchable by name and returns pointers to the functions of the loaded Print Processor DLL.
+ * Initializes a singly linked list of locally available Print Processors.
*/
void
-InitializePrintProcessorTable()
+InitializePrintProcessorList()
{
DWORD cbDatatypes;
DWORD cbFileName;
DWORD cchPrintProcessorPath;
DWORD cchMaxSubKey;
DWORD cchPrintProcessorName;
- DWORD dwDatatypes;
DWORD dwSubKeys;
DWORD i;
- DWORD j;
HINSTANCE hinstPrintProcessor;
HKEY hKey = NULL;
HKEY hSubKey = NULL;
HKEY hSubSubKey = NULL;
LONG lStatus;
- PDATATYPES_INFO_1W pDatatypesInfo1 = NULL;
PLOCAL_PRINT_PROCESSOR pPrintProcessor = NULL;
- PWSTR pwszDatatype = NULL;
PWSTR pwszPrintProcessorName = NULL;
WCHAR wszFileName[MAX_PATH];
WCHAR wszPrintProcessorPath[MAX_PATH];
- // Initialize an empty table for our Print Processors.
- // We will search it by Print Processor name.
- RtlInitializeGenericTable(&PrintProcessorTable, _PrintProcessorTableCompareRoutine, GenericTableAllocateRoutine, GenericTableFreeRoutine, NULL);
+ // Initialize an empty list for our Print Processors.
+ InitializeListHead(&_PrintProcessorList);
// Prepare the path to the Print Processor directory.
if (!LocalGetPrintProcessorDirectory(NULL, NULL, 1, (PBYTE)wszPrintProcessorPath, sizeof(wszPrintProcessorPath), &cchPrintProcessorPath))
if (pPrintProcessor->pwszName)
DllFreeSplStr(pPrintProcessor->pwszName);
+ if (pPrintProcessor->pDatatypesInfo1)
+ DllFreeSplMem(pPrintProcessor->pDatatypesInfo1);
+
DllFreeSplMem(pPrintProcessor);
pPrintProcessor = NULL;
}
- if (pDatatypesInfo1)
- {
- DllFreeSplMem(pDatatypesInfo1);
- pDatatypesInfo1 = NULL;
- }
-
// Get the name of this Print Processor.
cchPrintProcessorName = cchMaxSubKey;
lStatus = RegEnumKeyExW(hSubKey, i, pwszPrintProcessorName, &cchPrintProcessorName, NULL, NULL, NULL, NULL);
}
// Get all supported datatypes.
- pPrintProcessor->pfnEnumPrintProcessorDatatypesW(NULL, NULL, 1, NULL, 0, &cbDatatypes, &dwDatatypes);
- pDatatypesInfo1 = DllAllocSplMem(cbDatatypes);
- if (!pDatatypesInfo1)
+ pPrintProcessor->pfnEnumPrintProcessorDatatypesW(NULL, NULL, 1, NULL, 0, &cbDatatypes, &pPrintProcessor->dwDatatypeCount);
+ pPrintProcessor->pDatatypesInfo1 = DllAllocSplMem(cbDatatypes);
+ if (!pPrintProcessor->pDatatypesInfo1)
{
ERR("DllAllocSplMem failed with error %lu!\n", GetLastError());
goto Cleanup;
}
- if (!pPrintProcessor->pfnEnumPrintProcessorDatatypesW(NULL, NULL, 1, (PBYTE)pDatatypesInfo1, cbDatatypes, &cbDatatypes, &dwDatatypes))
+ if (!pPrintProcessor->pfnEnumPrintProcessorDatatypesW(NULL, NULL, 1, (PBYTE)pPrintProcessor->pDatatypesInfo1, cbDatatypes, &cbDatatypes, &pPrintProcessor->dwDatatypeCount))
{
ERR("EnumPrintProcessorDatatypesW failed for Print Processor \"%S\" with error %lu!\n", wszPrintProcessorPath, GetLastError());
continue;
}
- // Add the supported datatypes to the datatype table.
- RtlInitializeGenericTable(&pPrintProcessor->DatatypeTable, _DatatypeTableCompareRoutine, GenericTableAllocateRoutine, GenericTableFreeRoutine, NULL);
-
- for (j = 0; j < dwDatatypes; j++)
- {
- pwszDatatype = AllocSplStr(pDatatypesInfo1->pName);
-
- if (!RtlInsertElementGenericTable(&pPrintProcessor->DatatypeTable, pDatatypesInfo1->pName, sizeof(PWSTR), NULL))
- {
- ERR("RtlInsertElementGenericTable failed for iteration %lu with error %lu!\n", j, GetLastError());
- goto Cleanup;
- }
-
- ++pDatatypesInfo1;
- }
-
- // Add the Print Processor to the table.
- if (!RtlInsertElementGenericTable(&PrintProcessorTable, pPrintProcessor, sizeof(LOCAL_PRINT_PROCESSOR), NULL))
- {
- ERR("RtlInsertElementGenericTable failed for iteration %lu with error %lu!\n", i, GetLastError());
- goto Cleanup;
- }
+ // Add the Print Processor to the list.
+ InsertTailList(&_PrintProcessorList, &pPrintProcessor->Entry);
// Don't let the cleanup routines free this.
- pwszDatatype = NULL;
pPrintProcessor = NULL;
}
Cleanup:
- if (pwszDatatype)
- DllFreeSplStr(pwszDatatype);
-
- if (pDatatypesInfo1)
- DllFreeSplMem(pDatatypesInfo1);
+ // Inside the loop
+ if (hSubSubKey)
+ RegCloseKey(hSubSubKey);
if (pPrintProcessor)
{
if (pPrintProcessor->pwszName)
DllFreeSplStr(pPrintProcessor->pwszName);
+ if (pPrintProcessor->pDatatypesInfo1)
+ DllFreeSplMem(pPrintProcessor->pDatatypesInfo1);
+
DllFreeSplMem(pPrintProcessor);
}
+ // Outside the loop
if (pwszPrintProcessorName)
DllFreeSplStr(pwszPrintProcessorName);
- if (hSubSubKey)
- RegCloseKey(hSubSubKey);
-
if (hSubKey)
RegCloseKey(hSubKey);
}
// Try to find the Print Processor.
- pPrintProcessor = RtlLookupElementGenericTable(&PrintProcessorTable, pPrintProcessorName);
+ pPrintProcessor = FindPrintProcessor(pPrintProcessorName);
if (!pPrintProcessor)
{
SetLastError(ERROR_UNKNOWN_PRINTPROCESSOR);
}
// Verify pEnvironment and open its registry key.
+ // We use the registry and not the PrintProcessorList here, because the caller may request information about a different environment.
if (!_OpenEnvironment(pEnvironment, &hKey))
goto Cleanup;
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