Leaked source code of windows server 2003
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/*++
*
* WOW v1.0
*
* Copyright (c) 1991, Microsoft Corporation
*
* WSPOOL.C
* WOW32 printer spooler support routines
*
* These routines help a Win 3.0 task to use the print spooler apis. These
* apis were exposed by DDK in Win 3.1.
*
* History:
* Created 1-July-1993 by Chandan Chauhan (ChandanC)
*
--*/
#include "precomp.h"
#pragma hdrstop
#include <winspool.h>
extern WORD gUser16hInstance;
VOID WOWSpoolerThread(WOWSPOOL *lpwowSpool);
WORD gprn16 = 0x100; // Global spooler job # (can be anything > 0)
MODNAME(wspool.c);
LPDEVMODE GetDefaultDevMode32(LPSTR szDriver)
{
LONG cbDevMode;
LPDEVMODE lpDevMode = NULL;
if (szDriver != NULL) {
if (!(spoolerapis[WOW_EXTDEVICEMODE].lpfn)) {
if (!LoadLibraryAndGetProcAddresses(L"WINSPOOL.DRV", spoolerapis, WOW_SPOOLERAPI_COUNT)) {
goto LeaveGetDefaultDevMode32;
}
}
if ((cbDevMode = (*spoolerapis[WOW_EXTDEVICEMODE].lpfn)(NULL, NULL, NULL, szDriver, NULL, NULL, NULL, 0)) > 0) {
if ((lpDevMode = (LPDEVMODE) malloc_w(cbDevMode)) != NULL) {
if ((*spoolerapis[WOW_EXTDEVICEMODE].lpfn)(NULL, NULL, lpDevMode, szDriver, NULL, NULL, NULL, DM_COPY) != IDOK) {
free_w(lpDevMode);
lpDevMode = NULL;
}
}
}
LeaveGetDefaultDevMode32:
if (!lpDevMode) {
LOGDEBUG(0,("WOW::GetDefaultDevMode32: Unable to get default DevMode\n"));
}
}
return(lpDevMode);
}
ULONG FASTCALL WG32OpenJob (PVDMFRAME pFrame)
{
INT len;
PSZ psz1 = NULL;
PSZ psz2 = NULL;
PSZ pszDriver = NULL;
ULONG ul=0;
DOC_INFO_1 DocInfo1;
HANDLE hnd;
register POPENJOB16 parg16;
PRINTER_DEFAULTS PrinterDefault;
PPRINTER_DEFAULTS pPrinterDefault = NULL;
GETARGPTR(pFrame, sizeof(OPENJOB16), parg16);
// save off the 16-bit params now since this could callback into a 16-bit
// fax driver & cause 16-bit memory to move.
if(parg16->f1) {
if(psz1 = malloc_w_strcpy_vp16to32(parg16->f1, FALSE, 0)) {
len = strlen(psz1)+1;
len = max(len, 40);
pszDriver = malloc_w(len);
}
}
if(parg16->f2) {
psz2 = malloc_w_strcpy_vp16to32(parg16->f2, FALSE, 0);
}
FREEARGPTR(parg16);
// all 16-bit pointers are now invalid!!
// this implies that psz1 may also be bad
if(!pszDriver) {
goto exitpath;
}
if (!(spoolerapis[WOW_OpenPrinterA].lpfn)) {
if (!LoadLibraryAndGetProcAddresses(L"WINSPOOL.DRV", spoolerapis, WOW_SPOOLERAPI_COUNT)) {
goto exitpath;
}
}
if (GetDriverName(psz1, pszDriver, len)) {
if((PrinterDefault.pDevMode = GetDefaultDevMode32(pszDriver)) != NULL) {
PrinterDefault.pDatatype = NULL;
PrinterDefault.DesiredAccess = 0;
pPrinterDefault = &PrinterDefault;
if ((*spoolerapis[WOW_OpenPrinterA].lpfn) (pszDriver,
&hnd,
pPrinterDefault)) {
DocInfo1.pDocName = psz2;
DocInfo1.pOutputFile = psz1;
DocInfo1.pDatatype = NULL;
if (ul = (*spoolerapis[WOW_StartDocPrinterA].lpfn) (hnd, 1, (LPBYTE)&DocInfo1)) {
ul = GetPrn16(hnd);
}
else {
ul = GetLastError();
}
}
else {
ul = GetLastError();
}
}
}
LOGDEBUG(0,("WOW::WG32OpenJob: ul = %x\n", ul));
if (pPrinterDefault) {
free_w(PrinterDefault.pDevMode);
}
exitpath:
if(psz1) {
free_w(psz1);
}
if(psz2) {
free_w(psz2);
}
if(pszDriver) {
free_w(pszDriver);
}
RETURN(ul);
}
ULONG FASTCALL WG32StartSpoolPage (PVDMFRAME pFrame)
{
ULONG ul=0;
register PSTARTSPOOLPAGE16 parg16;
GETARGPTR(pFrame, sizeof(STARTSPOOLPAGE16), parg16);
if (!(ul = (*spoolerapis[WOW_StartPagePrinter].lpfn) (Prn32(parg16->f1)))) {
ul = GetLastError();
}
LOGDEBUG(0,("WOW::WG32StartSpoolPage: ul = %x\n", ul));
FREEARGPTR(parg16);
RETURN(ul);
}
ULONG FASTCALL WG32EndSpoolPage (PVDMFRAME pFrame)
{
ULONG ul=0;
register PENDSPOOLPAGE16 parg16;
GETARGPTR(pFrame, sizeof(ENDSPOOLPAGE16), parg16);
if (!(ul = (*spoolerapis[WOW_EndPagePrinter].lpfn) (Prn32(parg16->f1)))) {
ul = GetLastError();
}
LOGDEBUG(0,("WOW::WG32EndSpoolPage: ul = %x\n", ul));
FREEARGPTR(parg16);
RETURN(ul);
}
ULONG FASTCALL WG32CloseJob (PVDMFRAME pFrame)
{
ULONG ul=0;
register PCLOSEJOB16 parg16;
GETARGPTR(pFrame, sizeof(CLOSEJOB16), parg16);
if (!(ul = (*spoolerapis[WOW_EndDocPrinter].lpfn) (Prn32(parg16->f1)))) {
ul = GetLastError();
}
if (!(ul = (*spoolerapis[WOW_ClosePrinter].lpfn) (Prn32(parg16->f1)))) {
ul = GetLastError();
}
if (ul) {
FreePrn(parg16->f1);
}
LOGDEBUG(0,("WOW::WG32CloseJob: ul = %x\n", ul));
FREEARGPTR(parg16);
RETURN(ul);
}
ULONG FASTCALL WG32WriteSpool (PVDMFRAME pFrame)
{
DWORD dwWritten;
ULONG ul=0;
register PWRITESPOOL16 parg16;
LPVOID pBuf;
GETARGPTR(pFrame, sizeof(WRITESPOOL16), parg16);
GETMISCPTR (parg16->f2, pBuf);
if (ul = (*spoolerapis[WOW_WritePrinter].lpfn) (Prn32(parg16->f1), pBuf,
FETCHWORD(parg16->f3), &dwWritten)) {
ul = FETCHWORD(parg16->f3);
}
else {
ul = GetLastError();
}
LOGDEBUG(0,("WOW::WG32WriteSpool: ul = %x\n", ul));
FREEMISCPTR(pBuf);
FREEARGPTR(parg16);
RETURN(ul);
}
ULONG FASTCALL WG32DeleteJob (PVDMFRAME pFrame)
{
ULONG ul = 0;
register PDELETEJOB16 parg16;
GETARGPTR(pFrame, sizeof(DELETEJOB16), parg16);
if (!(ul = (*spoolerapis[WOW_DeletePrinter].lpfn) (Prn32(parg16->f1)))) {
ul = GetLastError();
}
LOGDEBUG(0,("WOW::WG32DeleteJob: ul = %x\n", ul));
FREEARGPTR(parg16);
RETURN(ul);
}
ULONG FASTCALL WG32SpoolFile (PVDMFRAME pFrame)
{
INT len;
PSZ psz2 = NULL;
PSZ psz3 = NULL;
PSZ psz4 = NULL;
PSZ pszDriver = NULL;
LONG ul = -1; // SP_ERROR
HANDLE hFile = NULL;
HANDLE hPrinter = NULL;
HANDLE hThread = NULL;
WOWSPOOL *lpwowSpool = NULL;
DOC_INFO_1 DocInfo1;
DWORD dwUnused;
register PSPOOLFILE16 parg16;
GETARGPTR(pFrame, sizeof(SPOOLFILE16), parg16);
// save off the 16-bit params now since this could callback into a 16-bit
// fax driver & cause 16-bit memory to move.
// ignore psz1 (printer name)
// get the port name and the associated driver name
if(parg16->f2) {
if(!(psz2 = malloc_w_strcpy_vp16to32(parg16->f2, FALSE, 0))) {
goto exitpath;
}
len = strlen(psz2)+1;
len = max(len, 40);
if(!(pszDriver = malloc_w(len))) {
goto exitpath;
}
if(!GetDriverName(psz2, pszDriver, len)) {
goto exitpath;
}
}
// get the Job Title
if(parg16->f3) {
if(!(psz3 = malloc_w_strcpy_vp16to32(parg16->f3, FALSE, 0))) {
goto exitpath;
}
}
// get the file name
if(parg16->f4) {
if(!(psz4 = malloc_w_strcpy_vp16to32(parg16->f4, FALSE, 0))) {
goto exitpath;
}
}
FREEARGPTR(parg16);
// all 16-bit pointers are now invalid!!
// all fields of this struct are initially zero
if(!(lpwowSpool = (WOWSPOOL *)malloc_w_zero(sizeof(WOWSPOOL)))) {
goto exitpath;
}
if(!(spoolerapis[WOW_OpenPrinterA].lpfn)) {
if(!LoadLibraryAndGetProcAddresses(L"WINSPOOL.DRV", spoolerapis, WOW_SPOOLERAPI_COUNT)) {
goto exitpath;
}
}
// open the specified file
if((hFile = DPM_CreateFile(psz4,
GENERIC_READ,
0,
NULL,
OPEN_EXISTING,
FILE_FLAG_SEQUENTIAL_SCAN,
NULL)) == INVALID_HANDLE_VALUE) {
goto exitpath;
}
// create the WOWSpoolerThread to handle the "spooling"
if(!(hThread = CreateThread(NULL,
16384,
(LPTHREAD_START_ROUTINE)WOWSpoolerThread,
lpwowSpool,
CREATE_SUSPENDED,
(LPDWORD)&dwUnused))) {
goto exitpath;
}
// open the printer
if((*spoolerapis[WOW_OpenPrinterA].lpfn)(pszDriver, &hPrinter, NULL)) {
DocInfo1.pDocName = psz3;
DocInfo1.pOutputFile = NULL;
DocInfo1.pDatatype = "RAW";
// start a doc
if(!(*spoolerapis[WOW_StartDocPrinterA].lpfn)(hPrinter,
1,
(LPBYTE)&DocInfo1)) {
goto ClosePrinter;
}
// start a page
if((*spoolerapis[WOW_StartPagePrinter].lpfn)(hPrinter)) {
// tell the WOWSpoolerThread that it's OK to do its thing
lpwowSpool->fOK = TRUE;
lpwowSpool->hFile = hFile;
lpwowSpool->hPrinter = hPrinter;
lpwowSpool->prn16 = gprn16;
// tell the app that everything is hunky dory
ul = (LONG)gprn16++;
// make sure this doesn't go negative (-> an error ret to the app)
if(gprn16 & 0x8000) {
gprn16 = 0x100;
}
}
// error path
else {
(*spoolerapis[WOW_EndDocPrinter].lpfn) (hPrinter);
ClosePrinter:
// note: hPrinter is freed by WOW_ClosePrinter
(*spoolerapis[WOW_ClosePrinter].lpfn) (hPrinter);
}
}
exitpath:
LOGDEBUG(2,("WOW::WG32SpoolFile: ul = %x\n", ul));
if(psz2) {
free_w(psz2);
}
if(psz3) {
free_w(psz3);
}
if(psz4) {
free_w(psz4);
}
if(pszDriver) {
free_w(pszDriver);
}
// give the spooler thread a kick start then close the thread handle
// (note: the thread will still be active)
if(hThread) {
ResumeThread(hThread);
CloseHandle(hThread);
}
// clean up if there was an error -- otherwise the thread will clean up
if(ul == -1) {
if(hFile) {
DPM_CloseHandle(hFile);
}
if(lpwowSpool) {
free_w(lpwowSpool);
}
// note: hPrinter is freed by WOW_ClosePrinter
}
return((ULONG)ul);
}
#define SPOOL_BUFF_SIZE 4096
VOID WOWSpoolerThread(WOWSPOOL *lpwowSpool)
{
DWORD dwBytes;
DWORD dwWritten;
BYTE buf[SPOOL_BUFF_SIZE];
// this thread will only do something if fOK is TRUE
if(lpwowSpool && lpwowSpool->fOK) {
do {
// this is a sequential read
if(DPM_ReadFile(lpwowSpool->hFile, buf, SPOOL_BUFF_SIZE, &dwBytes, NULL)) {
// if dwBytes==0 --> EOF
if(dwBytes) {
//
if(!(*spoolerapis[WOW_WritePrinter].lpfn)(lpwowSpool->hPrinter,
buf,
dwBytes,
&dwWritten)) {
LOGDEBUG(0,("WOW::WOWSpoolerThread:WritePrinter ERROR!\n"));
break;
}
else if(dwBytes != dwWritten) {
LOGDEBUG(0,("WOW::WOWSpoolerThread:WritePrinter error!\n"));
break;
}
}
}
} while (dwBytes == SPOOL_BUFF_SIZE);
// shut down the print job
(*spoolerapis[WOW_EndPagePrinter].lpfn) (lpwowSpool->hPrinter);
(*spoolerapis[WOW_EndDocPrinter].lpfn) (lpwowSpool->hPrinter);
// note: hPrinter is freed by WOW_ClosePrinter
(*spoolerapis[WOW_ClosePrinter].lpfn) (lpwowSpool->hPrinter);
// clean up
if(lpwowSpool->hFile) {
DPM_CloseHandle(lpwowSpool->hFile);
}
if(lpwowSpool) {
free_w(lpwowSpool);
}
} // end if
ExitThread(0);
}
WORD GetPrn16(HANDLE h32)
{
HANDLE hnd;
VPVOID vp;
LPBYTE lpMem16;
hnd = LocalAlloc16(LMEM_MOVEABLE, sizeof(HANDLE), (HANDLE) gUser16hInstance);
vp = LocalLock16(hnd);
if (vp) {
GETMISCPTR (vp, lpMem16);
if (lpMem16) {
*((PDWORD16)lpMem16) = (DWORD) h32;
FREEMISCPTR(lpMem16);
LocalUnlock16(hnd);
}
}
else {
LOGDEBUG (0, ("WOW::GETPRN16: Can't allocate a 16 bit handle\n"));
}
return (LOWORD(hnd));
}
HANDLE Prn32(WORD h16)
{
VPVOID vp;
HANDLE h32 = NULL;
LPBYTE lpMem16;
vp = LocalLock16 ((HANDLE) MAKELONG(h16, gUser16hInstance));
if (vp) {
GETMISCPTR (vp, lpMem16);
if (lpMem16) {
h32 = (HANDLE) *((PDWORD16)lpMem16);
FREEMISCPTR(lpMem16);
}
LocalUnlock16 ((HANDLE) MAKELONG(h16, gUser16hInstance));
}
return (h32);
}
VOID FreePrn (WORD h16)
{
LocalFree16 ((HANDLE) MAKELONG(h16, gUser16hInstance));
}
BOOL GetDriverName (char *psz, char *pszDriver, int cbDriver)
{
CHAR szAllDevices[1024];
CHAR *szNextDevice;
CHAR szPrinter[64];
CHAR *szOutput;
UINT len;
if(!psz || (*psz == '\0')) {
return FALSE;
}
len = strlen(psz);
szAllDevices[0]='\0';
GetProfileString ("devices", NULL, "", szAllDevices, sizeof(szAllDevices));
szNextDevice = szAllDevices;
LOGDEBUG(6,("WOW::GetDriverName: szAllDevices = %s\n", szAllDevices));
// strings from win.ini will be of the form "PS Printer=PSCRIPT,LPT1:"
while (*szNextDevice) {
szPrinter[0]='\0';
GetProfileString ("devices", szNextDevice, "", szPrinter, sizeof(szPrinter));
if (*szPrinter) {
if (szOutput = WOW32_strchr (szPrinter, ',')) {
szOutput++;
while (*szOutput == ' ') {
szOutput++;
}
if (!WOW32_stricmp(psz, szOutput)) {
break; // found it!
}
// some apps pass "LPT1" without the ':' -- account for that
// if the app passed "LPT1" and ...
if (psz[len-1] != ':') {
// ...strlen(szOutput) == 5 && szOutput[4] == ':' ...
if((strlen(szOutput) == len+1) && (szOutput[len] == ':')) {
// ...clobber the ':' char ...
szOutput[len] = '\0';
// ...and see if the strings match now
if (!WOW32_stricmp(psz, szOutput)) {
break; // found it!
}
}
}
}
}
if (szNextDevice = WOW32_strchr (szNextDevice, '\0')) {
szNextDevice++;
}
else {
szNextDevice = "";
break;
}
}
if (*szNextDevice) {
LOGDEBUG(0,("WOW::GetDriverName: szNextDevice = %s\n", szNextDevice));
if (lstrcpyn (pszDriver, szNextDevice, cbDriver)) {
pszDriver[cbDriver-1] = '\0';
return TRUE;
}
}
// else they may have specified a network printer eg. "\\msprint44\corpk"
// in which case we'll assume it's all right (since it will fail once the
// WOW functions that call into this will fail when they call into the
// driver with a bogus driver name)
if(psz[0] == '\\' && psz[1] == '\\') {
strncpy(pszDriver, psz, cbDriver);
pszDriver[cbDriver-1] = '\0';
return TRUE;
}
return FALSE;
}