* PROJECT: ReactOS Local Spooler
* LICENSE: GNU LGPL v2.1 or any later version as published by the Free Software Foundation
* PURPOSE: Functions related to Printers and printing
- * COPYRIGHT: Copyright 2015 Colin Finck <colin@reactos.org>
+ * COPYRIGHT: Copyright 2015-2017 Colin Finck <colin@reactos.org>
*/
#include "precomp.h"
// Global Variables
SKIPLIST PrinterList;
+// Local Constants
+static DWORD dwPrinterInfo1Offsets[] = {
+ FIELD_OFFSET(PRINTER_INFO_1W, pName),
+ FIELD_OFFSET(PRINTER_INFO_1W, pComment),
+ FIELD_OFFSET(PRINTER_INFO_1W, pDescription),
+ MAXDWORD
+};
/**
* @name _PrinterListCompareRoutine
pPrinter->pPort = pPort;
InitializePrinterJobList(pPrinter);
+ // Get the location.
+ pPrinter->pwszLocation = AllocAndRegQueryWSZ(hSubKey, L"Location");
+ if (!pPrinter->pwszLocation)
+ continue;
+
// Get the printer driver.
pPrinter->pwszPrinterDriver = AllocAndRegQueryWSZ(hSubKey, L"Printer Driver");
if (!pPrinter->pwszPrinterDriver)
return (dwErrorCode == ERROR_SUCCESS);
}
+/**
+ * @name _IsLocalComputerName
+ *
+ * Checks if the given Computer Name matches the local Computer Name.
+ *
+ * @param Name
+ * Computer Name prepended with two backslashes to check.
+ *
+ * @param pwszComputerName
+ * Pointer to a string able to hold 2 + MAX_COMPUTERNAME_LENGTH + 1 + 1 characters.
+ * Will contain a string "\\COMPUTERNAME\" on success that can be prepended in EnumPrinters.
+ *
+ * @param pcchComputerName
+ * On success, this pointer receives the length in characters of pwszComputerName.
+ *
+ * @return
+ * ERROR_SUCCESS on success or an error code on failure.
+ */
+static DWORD
+_IsLocalComputerName(PCWSTR Name, PWSTR pwszComputerName, PDWORD pcchComputerName)
+{
+ DWORD dwErrorCode;
+
+ // Prepend slashes to the computer name.
+ pwszComputerName[0] = L'\\';
+ pwszComputerName[1] = L'\\';
-DWORD
-_LocalEnumPrintersLevel1(DWORD Flags, LPWSTR Name, LPBYTE pPrinterEnum, DWORD cbBuf, LPDWORD pcbNeeded, LPDWORD pcReturned)
+ // Get the local computer name for comparison.
+ *pcchComputerName = MAX_COMPUTERNAME_LENGTH + 1;
+ if (!GetComputerNameW(&pwszComputerName[2], pcchComputerName))
+ {
+ dwErrorCode = GetLastError();
+ ERR("GetComputerNameW failed with error %lu!\n", dwErrorCode);
+ goto Cleanup;
+ }
+
+ // Add the leading slashes to the total length.
+ *pcchComputerName += 2;
+
+ // Now compare this with the local computer name and reject it with ERROR_INVALID_NAME if it doesn't match.
+ if (wcsicmp(&Name[2], &pwszComputerName[2]) != 0)
+ {
+ dwErrorCode = ERROR_INVALID_NAME;
+ goto Cleanup;
+ }
+
+ // Add a trailing backslash to pwszComputerName, which will later be prepended in front of the printer names.
+ pwszComputerName[(*pcchComputerName)++] = L'\\';
+ pwszComputerName[*pcchComputerName] = 0;
+
+ dwErrorCode = ERROR_SUCCESS;
+
+Cleanup:
+ return dwErrorCode;
+}
+
+static DWORD
+_DumpLevel1PrintProviderInformation(PBYTE pPrinterEnum, DWORD cbBuf, PDWORD pcbNeeded, PDWORD pcReturned)
+{
+ int i;
+
+ // Count the needed bytes for Print Provider information.
+ *pcbNeeded = sizeof(PRINTER_INFO_1W);
+
+ for (i = 0; i < 3; i++)
+ *pcbNeeded += (wcslen(wszPrintProviderInfo[i]) + 1) * sizeof(WCHAR);
+
+ // Check if the supplied buffer is large enough.
+ if (cbBuf < *pcbNeeded)
+ return ERROR_INSUFFICIENT_BUFFER;
+
+ // Copy over the Print Provider information.
+ ((PPRINTER_INFO_1W)pPrinterEnum)->Flags = 0;
+ PackStrings(wszPrintProviderInfo, pPrinterEnum, dwPrinterInfo1Offsets, &pPrinterEnum[*pcbNeeded]);
+ *pcReturned = 1;
+
+ return ERROR_SUCCESS;
+}
+
+static DWORD
+_LocalEnumPrintersLevel0(DWORD Flags, PCWSTR Name, PBYTE pPrinterEnum, DWORD cbBuf, PDWORD pcbNeeded, PDWORD pcReturned)
+{
+ return ERROR_INVALID_LEVEL;
+}
+
+static DWORD
+_LocalEnumPrintersLevel1(DWORD Flags, PCWSTR Name, PBYTE pPrinterEnum, DWORD cbBuf, PDWORD pcbNeeded, PDWORD pcReturned)
{
const WCHAR wszComma[] = L",";
DWORD dwErrorCode;
DWORD i;
PBYTE pPrinterInfo;
- PBYTE pPrinterString;
+ PBYTE pPrinterStrings;
PSKIPLIST_NODE pNode;
PLOCAL_PRINTER pPrinter;
- PRINTER_INFO_1W PrinterInfo1;
- WCHAR wszComputerName[2 + MAX_COMPUTERNAME_LENGTH + 1 + 1];
-
- DWORD dwOffsets[] = {
- FIELD_OFFSET(PRINTER_INFO_1W, pName),
- FIELD_OFFSET(PRINTER_INFO_1W, pDescription),
- FIELD_OFFSET(PRINTER_INFO_1W, pComment),
- MAXDWORD
- };
+ PWSTR p;
+ PWSTR pwszStrings[3];
+ WCHAR wszComputerName[2 + MAX_COMPUTERNAME_LENGTH + 1 + 1] = { 0 };
if (Flags & PRINTER_ENUM_NAME)
{
if (Name)
{
// The user supplied a Computer Name (with leading double backslashes) or Print Provider Name.
- // Only process what's directed at us and dismiss every other request with ERROR_INVALID_NAME.
+ // Only process what's directed at us.
if (Name[0] == L'\\' && Name[1] == L'\\')
{
- // Prepend slashes to the computer name.
- wszComputerName[0] = L'\\';
- wszComputerName[1] = L'\\';
-
- // Get the local computer name for comparison.
- cchComputerName = MAX_COMPUTERNAME_LENGTH + 1;
- if (!GetComputerNameW(&wszComputerName[2], &cchComputerName))
- {
- dwErrorCode = GetLastError();
- ERR("GetComputerNameW failed with error %lu!\n", dwErrorCode);
+ dwErrorCode = _IsLocalComputerName(Name, wszComputerName, &cchComputerName);
+ if (dwErrorCode != ERROR_SUCCESS)
goto Cleanup;
- }
-
- // Add the leading slashes to the total length.
- cchComputerName += 2;
-
- // Now compare this with the local computer name and reject if it doesn't match.
- if (wcsicmp(&Name[2], &wszComputerName[2]) != 0)
- {
- dwErrorCode = ERROR_INVALID_NAME;
- goto Cleanup;
- }
-
- // Add a trailing backslash to wszComputerName, which will later be prepended in front of the printer names.
- wszComputerName[cchComputerName++] = L'\\';
- wszComputerName[cchComputerName] = 0;
}
else if (wcsicmp(Name, wszPrintProviderInfo[0]) != 0)
{
- // The user supplied a name that cannot be processed by the local print provider.
+ // The user supplied a name that cannot be processed by the Local Print Provider.
dwErrorCode = ERROR_INVALID_NAME;
goto Cleanup;
}
{
// The caller wants information about this Print Provider.
// spoolss packs this into an array of information about all Print Providers.
- *pcbNeeded = sizeof(PRINTER_INFO_1W);
-
- for (i = 0; i < 3; i++)
- *pcbNeeded += (wcslen(wszPrintProviderInfo[i]) + 1) * sizeof(WCHAR);
-
- // Check if the supplied buffer is large enough.
- if (cbBuf < *pcbNeeded)
- {
- dwErrorCode = ERROR_INSUFFICIENT_BUFFER;
- goto Cleanup;
- }
-
- // Copy over the print processor information.
- ((PPRINTER_INFO_1W)pPrinterEnum)->Flags = 0;
- PackStrings(wszPrintProviderInfo, pPrinterEnum, dwOffsets, &pPrinterEnum[*pcbNeeded]);
- *pcReturned = 1;
- dwErrorCode = ERROR_SUCCESS;
+ dwErrorCode = _DumpLevel1PrintProviderInformation(pPrinterEnum, cbBuf, pcbNeeded, pcReturned);
goto Cleanup;
}
}
{
pPrinter = (PLOCAL_PRINTER)pNode->Element;
- // This looks wrong, but is totally right. PRINTER_INFO_1W has three members pName, pComment and pDescription.
- // But pComment equals the "Description" registry value while pDescription is concatenated out of pName and pComment.
+ // TODO: If PRINTER_ENUM_SHARED is given, add this Printer if it's shared instead of just ignoring it.
+ if (Flags & PRINTER_ENUM_SHARED)
+ continue;
+
+ // Attention: pComment equals the "Description" registry value while pDescription is concatenated out of several strings.
// On top of this, the computer name is prepended to the printer name if the user supplied the local computer name during the query.
- cbName = (wcslen(pPrinter->pwszPrinterName) + 1) * sizeof(WCHAR);
+ cbName = (cchComputerName + wcslen(pPrinter->pwszPrinterName) + 1) * sizeof(WCHAR);
cbComment = (wcslen(pPrinter->pwszDescription) + 1) * sizeof(WCHAR);
- cbDescription = cchComputerName * sizeof(WCHAR) + cbName + cbComment + sizeof(WCHAR);
+ cbDescription = cbName + (wcslen(pPrinter->pwszPrinterDriver) + 1 + wcslen(pPrinter->pwszLocation) + 1) * sizeof(WCHAR);
- *pcbNeeded += sizeof(PRINTER_INFO_1W) + cchComputerName * sizeof(WCHAR) + cbName + cbComment + cbDescription;
+ *pcbNeeded += sizeof(PRINTER_INFO_1W) + cbName + cbComment + cbDescription;
i++;
}
goto Cleanup;
}
- // Put the strings right after the last PRINTER_INFO_1W structure.
- // Due to all the required string processing, we can't just use PackStrings here :(
+ // Initialize the variables for filling the output buffer using PackStrings.
pPrinterInfo = pPrinterEnum;
- pPrinterString = pPrinterEnum + i * sizeof(PRINTER_INFO_1W);
+ pPrinterStrings = &pPrinterEnum[*pcbNeeded];
- // Copy over the printer information.
+ // Copy over the Printer information.
for (pNode = PrinterList.Head.Next[0]; pNode; pNode = pNode->Next[0])
{
pPrinter = (PLOCAL_PRINTER)pNode->Element;
- // FIXME: As for now, the Flags member returns no information.
- PrinterInfo1.Flags = 0;
+ // TODO: If PRINTER_ENUM_SHARED is given, add this Printer if it's shared instead of just ignoring it.
+ if (Flags & PRINTER_ENUM_SHARED)
+ continue;
- // Copy the printer name.
- PrinterInfo1.pName = (PWSTR)pPrinterString;
- CopyMemory(pPrinterString, wszComputerName, cchComputerName * sizeof(WCHAR));
- pPrinterString += cchComputerName * sizeof(WCHAR);
- cbName = (wcslen(pPrinter->pwszPrinterName) + 1) * sizeof(WCHAR);
- CopyMemory(pPrinterString, pPrinter->pwszPrinterName, cbName);
- pPrinterString += cbName;
+ // Indicate that this is a Printer.
+ ((PPRINTER_INFO_1W)pPrinterInfo)->Flags = PRINTER_ENUM_ICON8;
- // Copy the printer comment (equals the "Description" registry value).
- PrinterInfo1.pComment = (PWSTR)pPrinterString;
+ // Calculate the string lengths.
+ cbName = (cchComputerName + wcslen(pPrinter->pwszPrinterName) + 1) * sizeof(WCHAR);
cbComment = (wcslen(pPrinter->pwszDescription) + 1) * sizeof(WCHAR);
- CopyMemory(pPrinterString, pPrinter->pwszDescription, cbComment);
- pPrinterString += cbComment;
-
- // Copy the description, which for PRINTER_INFO_1W has the form "Name,Comment,"
- PrinterInfo1.pDescription = (PWSTR)pPrinterString;
- CopyMemory(pPrinterString, wszComputerName, cchComputerName * sizeof(WCHAR));
- pPrinterString += cchComputerName * sizeof(WCHAR);
- CopyMemory(pPrinterString, pPrinter->pwszPrinterName, cbName - sizeof(WCHAR));
- pPrinterString += cbName - sizeof(WCHAR);
- CopyMemory(pPrinterString, wszComma, sizeof(WCHAR));
- pPrinterString += sizeof(WCHAR);
- CopyMemory(pPrinterString, pPrinter->pwszDescription, cbComment - sizeof(WCHAR));
- pPrinterString += cbComment - sizeof(WCHAR);
- CopyMemory(pPrinterString, wszComma, sizeof(wszComma));
- pPrinterString += sizeof(wszComma);
-
+ cbDescription = cbName + (wcslen(pPrinter->pwszPrinterDriver) + 1 + wcslen(pPrinter->pwszLocation) + 1) * sizeof(WCHAR);
+
+ // Copy the Printer Name.
+ pwszStrings[0] = DllAllocSplMem(cbName);
+ p = pwszStrings[0];
+ StringCbCopyExW(p, cbName, wszComputerName, &p, &cbName, 0);
+ StringCbCopyExW(p, cbName, pPrinter->pwszPrinterName, &p, &cbName, 0);
+
+ // Copy the Printer comment (equals the "Description" registry value).
+ pwszStrings[1] = pPrinter->pwszDescription;
+
+ // Copy the description, which for PRINTER_INFO_1W has the form "Name,Printer Driver,Location"
+ pwszStrings[2] = DllAllocSplMem(cbDescription);
+ p = pwszStrings[2];
+ StringCbCopyExW(p, cbDescription, wszComputerName, &p, &cbDescription, 0);
+ StringCbCopyExW(p, cbDescription, pPrinter->pwszPrinterName, &p, &cbDescription, 0);
+ StringCbCopyExW(p, cbDescription, wszComma, &p, &cbDescription, 0);
+ StringCbCopyExW(p, cbDescription, pPrinter->pwszPrinterDriver, &p, &cbDescription, 0);
+ StringCbCopyExW(p, cbDescription, wszComma, &p, &cbDescription, 0);
+ StringCbCopyExW(p, cbDescription, pPrinter->pwszLocation, &p, &cbDescription, 0);
+
// Finally copy the structure and advance to the next one in the output buffer.
- CopyMemory(pPrinterInfo, &PrinterInfo1, sizeof(PRINTER_INFO_1W));
+ pPrinterStrings = PackStrings(pwszStrings, pPrinterInfo, dwPrinterInfo1Offsets, pPrinterStrings);
pPrinterInfo += sizeof(PRINTER_INFO_1W);
+
+ // Free the memory for temporary strings.
+ DllFreeSplMem(pwszStrings[0]);
+ DllFreeSplMem(pwszStrings[2]);
}
*pcReturned = i;
return dwErrorCode;
}
+static DWORD
+_LocalEnumPrintersLevel2(DWORD Flags, PCWSTR Name, PBYTE pPrinterEnum, DWORD cbBuf, PDWORD pcbNeeded, PDWORD pcReturned)
+{
+ return ERROR_INVALID_LEVEL;
+}
+
+static DWORD
+_LocalEnumPrintersLevel4(DWORD Flags, PCWSTR Name, PBYTE pPrinterEnum, DWORD cbBuf, PDWORD pcbNeeded, PDWORD pcReturned)
+{
+ return ERROR_INVALID_LEVEL;
+}
+
+static DWORD
+_LocalEnumPrintersLevel5(DWORD Flags, PCWSTR Name, PBYTE pPrinterEnum, DWORD cbBuf, PDWORD pcbNeeded, PDWORD pcReturned)
+{
+ return ERROR_INVALID_LEVEL;
+}
+
BOOL WINAPI
LocalEnumPrinters(DWORD Flags, LPWSTR Name, DWORD Level, LPBYTE pPrinterEnum, DWORD cbBuf, LPDWORD pcbNeeded, LPDWORD pcReturned)
{
*pcbNeeded = 0;
*pcReturned = 0;
- // Think positive :)
- // Treat it as success if the caller queried no information and we don't need to return any.
- dwErrorCode = ERROR_SUCCESS;
+ if (Flags & PRINTER_ENUM_CONNECTIONS || Flags & PRINTER_ENUM_REMOTE || Flags & PRINTER_ENUM_NETWORK)
+ {
+ // If the flags for the Network Print Provider are given, bail out with ERROR_INVALID_NAME.
+ // This is the internal way for a Print Provider to signal that it doesn't handle this request.
+ dwErrorCode = ERROR_INVALID_NAME;
+ goto Cleanup;
+ }
- if (Flags & PRINTER_ENUM_LOCAL)
+ if (!(Flags & PRINTER_ENUM_LOCAL || Flags & PRINTER_ENUM_NAME))
{
- // The function behaves quite differently for each level.
- if (Level == 1)
- {
- dwErrorCode = _LocalEnumPrintersLevel1(Flags, Name, pPrinterEnum, cbBuf, pcbNeeded, pcReturned);
- }
- else
- {
- // TODO: Handle other levels.
- // The caller supplied an invalid level.
- dwErrorCode = ERROR_INVALID_LEVEL;
- goto Cleanup;
- }
+ // The Local Print Provider is the right destination for the request, but without any of these flags,
+ // there is no information that can be returned.
+ // So just signal a successful request.
+ dwErrorCode = ERROR_SUCCESS;
+ goto Cleanup;
+ }
+
+ if (Level == 0)
+ {
+ dwErrorCode = _LocalEnumPrintersLevel0(Flags, Name, pPrinterEnum, cbBuf, pcbNeeded, pcReturned);
+ }
+ else if (Level == 1)
+ {
+ dwErrorCode = _LocalEnumPrintersLevel1(Flags, Name, pPrinterEnum, cbBuf, pcbNeeded, pcReturned);
+ }
+ else if (Level == 2)
+ {
+ dwErrorCode = _LocalEnumPrintersLevel2(Flags, Name, pPrinterEnum, cbBuf, pcbNeeded, pcReturned);
+ }
+ else if (Level == 4)
+ {
+ dwErrorCode = _LocalEnumPrintersLevel4(Flags, Name, pPrinterEnum, cbBuf, pcbNeeded, pcReturned);
+ }
+ else if (Level == 5)
+ {
+ dwErrorCode = _LocalEnumPrintersLevel5(Flags, Name, pPrinterEnum, cbBuf, pcbNeeded, pcReturned);
+ }
+ else
+ {
+ // The caller supplied an invalid level.
+ dwErrorCode = ERROR_INVALID_LEVEL;
}
Cleanup:
projects / reactos.git / blobdiff