Leaked source code of windows server 2003
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/*++
*
* WOW v1.0
*
* Copyright (c) 1991, Microsoft Corporation
*
* WKERNEL.C
* WOW32 16-bit Kernel API support
*
* History:
* Created 07-Mar-1991 by Jeff Parsons (jeffpar)
--*/
#include "precomp.h"
#pragma hdrstop
MODNAME(wkernel.c);
int W31_w9x_MyStrLen(LPSTR lpstr);
/*******************************************************************************
// Hack action & attribute flags to use with WOWCF2_HACKPROFILECALL.
// See how these are used with the parameters for ProfileHacks()
*******************************************************************************/
#define HPC_INTFUNCTION 0x00000001
#define HPC_STRFUNCTION 0x00000002
#define HPC_USEDEFAULT 0x00001000
#define HPC_RETURNHACKVALUE 0x00002000
#define HPC_UPPERCASE 0x00004000
#define HPC_LOWERCASE 0x00008000
#define HPC_HASENVIRONMENTVAR 0x00000100
#define HPC_CONVERTTOSHORTPATH 0x00000200
#define HPC_MULTIKEY 0x00000400
/*******************************************************************************
HPC_MULTIKEY Specifies that the hack applies to several Keys in a
seciton in the .ini file. Each key name should be
separated by a pipe ('|') char. ie. Key1|Key2|Key3.
HPC_INTFUNCTION Specifies this is a xxxxProfileInt() type function.
Causes pDefault & pRetBuf to be interpreted as PINT.
HPC_STRFUNCTION Specifies this is a xxxxProfileString() type function.
Causes pDefault & pRetBuf to be interpreted as LPSTR.
The length of pRetBuf is specified by cbRetBuf.
HPC_SECTIONFUNCTION Specifies this is a xxxxProfileSection() type function.
(Not implemented) Causes pDefault & pRetBuf to be interpreted as PVOID
buffer. The length of pRetBuf is specified by cbRetBuf.
HPC_STRUCTFUNCTION Specifies this is a xxxxProfileStruct() type function.
(Not implemented) Causes pDefault & pRetBuf to be interpreted as PVOID
buffer. The length of pRetBuf is specified by cbRetBuf.
HPC_USEDEFAULT Copy pDefault to pRetBuf for GetxxProfilexx() type API's.
pDefault will be interpreted according to the
HPC_xxxFUNCTION flags.
HPC_RETURNHACKVALUE Used to specify that NewData should be copied to pRetBuf.
The HPC_xxxxFUNCTION flags will determine how (data type)
HPC_UPPERCASE Converts string(s) in pRetBuf to upper/lowercase. If
HPC_LOWERCASE HPC_STRFUNCTION is set, the first string in pRetBuf is
converted (to ther first NULL char). If the
HPC_SECTIONFUNCTION flag is set, all strings in pRetBuf
will be converted (Stops when the double-NULL char
list-terminator is encountered).
HPC_HASENVIRONMENTVAR The Xml string has an environment var of the form
%VarName%.
HPC_CONVERTTOSHORTPATH Converts the return string value to a short path.
*******************************************************************************/
// Treat as a unicode function.
#define HPC_UNICODE 0x80000000
// Used to specify which API you want the hack for.
// OR '|' in HPC_UNICODE for the Wide API's.
#define HPC_GETPROFILEINT 0x40000000
#define HPC_GETPRIVATEPROFILEINT 0x20000000
#define HPC_GETPROFILESTRING 0x10000000
#define HPC_GETPRIVATEPROFILESTRING 0x08000000
#define HPC_GETPROFILESECTION 0x04000000
#define HPC_GETPRIVATEPROFILESECTION 0x02000000
#define HPC_GETPRIVATEPROFILESECTIONNAMES 0x01000000
#define HPC_GETPRIVATEPROFILESTRUCT 0x00800000
#define HPC_WRITEPROFILESTRING 0x00400000
#define HPC_WRITEPRIVATEPROFILESTRING 0x00200000
#define HPC_WRITEPROFILESECTION 0x00100000
#define HPC_WRITEPRIVATEPROFILESECTION 0x00080000
#define HPC_WRITEPRIVATEPROFILESTRUCT 0x00040000
#define HPC_APIFLAGS (HPC_UNICODE | \
HPC_GETPROFILEINT | \
HPC_GETPRIVATEPROFILEINT | \
HPC_GETPROFILESTRING | \
HPC_GETPRIVATEPROFILESTRING | \
HPC_GETPROFILESECTION | \
HPC_GETPRIVATEPROFILESECTION | \
HPC_GETPRIVATEPROFILESECTIONNAMES | \
HPC_GETPRIVATEPROFILESTRUCT | \
HPC_WRITEPROFILESTRING | \
HPC_WRITEPRIVATEPROFILESTRING | \
HPC_WRITEPROFILESECTION | \
HPC_WRITEPRIVATEPROFILESECTION | \
HPC_WRITEPRIVATEPROFILESTRUCT)
#define HPC_ORD_FLAGS 0
#define HPC_ORD_FILE 1
#define HPC_ORD_SECTION 2
#define HPC_ORD_KEY 3
#define HPC_ORD_NEWDATA 4
#define HPC_ORD_CBNEWDATA 5
#define HPC_ORD_LAST (5+1) // if you change this you need to change all
// the XML entries to reflect it
DWORD pow16(int pow)
{
int i;
DWORD dwPow = 1;
for(i = 0; i < pow; i++)
dwPow *= 0x10;
return(dwPow);
}
char szDigits[] = "0123456789ABCDEF";
// Convert a string of the form: "0x12345678" to its DWORD equivalent
// Must have "0x" and have 8 digits or less.
DWORD AsciiToHex(LPSTR pszHexString)
{
int i, len;
int pow = 0;
char c;
DWORD dwVal;
DWORD dwTot = 0;
WOW32_strupr(pszHexString);
WOW32ASSERTMSG((pszHexString[1] == 'X'),("WOW::AsciiToHex:Missing 'x'\n"));
WOW32ASSERTMSG((strlen(pszHexString) == 10),("WOW::AsciiToHex:Bad len\n"));
len = strlen(pszHexString)-1;
// "0x" = 2, and 8 digits or less
WOW32ASSERTMSG(((len > 2) && (len <= 10)),("WOW::AsciiToHex:Bad form\n"));
// parse from the right back to the 'x'
for(i = len; i > 1; i--) {
c = pszHexString[i];
for(dwVal = 0; dwVal < 0x10; dwVal++) {
if(c == szDigits[dwVal]) {
break;
}
}
WOW32ASSERTMSG((dwVal < 0x10),("WOW::AsciiToHex:Bad hex char\n"));
dwTot += dwVal * pow16(pow);
pow++;
}
return(dwTot);
}
LPSTR *parsemulti(LPSTR pArgs, int *argc)
{
int i = 0;
LPSTR *pArgv;
*argc = 1;
while(pArgs[i] != '\0') {
if(pArgs[i++] == '|') {
(*argc)++;
}
}
if(*argc <= 1) {
return(NULL);
}
pArgv = (LPSTR *)malloc_w(*argc * sizeof(LPSTR *));
if(!pArgv) {
return(NULL);
}
i = 1;
pArgv[0] = pArgs;
while(*pArgs) {
if(*pArgs == '|') {
*pArgs = '\0';
pArgs++;
pArgv[i++] = pArgs;
}
else {
pArgs++;
}
}
return(pArgv);
}
CHAR *CopyStrToBuf(LPSTR pszSrc, LPSTR pszDst, DWORD cbDst)
{
CHAR *pFinal = pszSrc;
if(strlen(pszSrc) < cbDst) {
strcpy(pszDst, pszSrc);
WOW32_strlwr(pszDst); // lowercase for strstr() compares
pFinal = pszDst;
}
return(pFinal);
}
/*
Allows us to use the WOWCF2_HACKPROFILECALL comaptibility bit to fix a number
of GetxxxProfilexxx() API calls by updating the app compat database rather
than updating WOW32.DLL.
The dbu.xml file should be of this format:
<FLAG NAME="WOWCF2_HACKPROFILECALL" COMMAND_LINE="dwXmlFlags;FileName;SectionName;KeyName;NewData;cbNewData">/
We can support multiple hack under the same flag just by repeating the same
parameter list multiple times. You must preserve position by using the ';'
delimeter for null arguments. Hence, to specify two HACKPROFILECALL hacks
for the same app:
<FLAG NAME="WOWCF2_HACKPROFILECALL" COMMAND_LINE="0x08002102;system.ini;mci;QTWVideo;%windir%\\system\\mciqtw.drv;0x00000000;0x20001001;sierra.ini;Config;VideoSpeed;;0x00000000"/>
Note that in the above example, the second hack specification starts with the
XML flags "0x20001001..."
where:
dwXmlFlags - hex string ("0x12345678") specifying HPC_xxx flags above.
FileName - .ini file name. NULL if filename="win.ini"
SectionName - [SectionName] from .ini file
KeyName - aka "entry" value from .ini file.
NewData1 - data to substitute for field specified in dwXmlFlags
Data must be in
cbNewData - number of bytes in newdata -- including all NULL chars
If none of the hack specifications match, we return the passed in ul value
which was returned by the original call to the 32-bit profile API.
*/
ULONG ProfileHacks(DWORD dwFlags, LPCSTR pszFile, LPCSTR pszSection, LPCSTR pszKey, LPCSTR pDefault, INT iDefault, LPSTR pRetBuf, INT cbRetBuf, ULONG ul)
{
int i, cNumHacks;
DWORD dwRet = 0;
LPSTR *pArgv = NULL;
DWORD dwXmlFlags;
CHAR szBufApp[MAX_PATH], *pszBufApp;
CHAR szBufHack[MAX_PATH], *pszBufHack;
PFLAGINFOBITS pFlagInfoBits;
pFlagInfoBits = CheckFlagInfo(WOWCOMPATFLAGS2, WOWCF2_HACKPROFILECALL);
if(pFlagInfoBits) {
pArgv = pFlagInfoBits->pFlagArgv;
}
if((NULL == pFlagInfoBits) || (NULL == pArgv)) {
WOW32ASSERTMSG((FALSE), ("\nWOW::ProfileHacks:Must use command_line params with this compatibility flag!\n"));
return(ul);
}
// Make sure the number of XML command line params are correct
if(pFlagInfoBits->dwFlagArgc % HPC_ORD_LAST) {
WOW32ASSERTMSG((FALSE), ("\nWOW::ProfileHacks:Incorrect number of args in XML database file!\n"));
return(ul);
}
// Get the total number of profile hacks associated with this app
cNumHacks = pFlagInfoBits->dwFlagArgc / HPC_ORD_LAST;
// save the lowercase version of the passed in filename string....
pszBufApp = CopyStrToBuf((CHAR *)pszFile,
szBufApp,
sizeof(szBufApp)/sizeof(CHAR));
// loop through all the hacks
for(i = 0; i < cNumHacks; i++) {
// get the flags for this hack
dwXmlFlags = AsciiToHex(pArgv[HPC_ORD_FLAGS]);
// If this isn't the API we had in mind for this hack, check next hack
// match...
if(!((HPC_APIFLAGS & dwXmlFlags) & (HPC_APIFLAGS & dwFlags))) {
goto NextHack;
}
// compare the file name strings for ...Private...() functions.
if(pszFile) {
pszBufHack = CopyStrToBuf(pArgv[HPC_ORD_FILE],
szBufHack,
sizeof(szBufHack)/sizeof(CHAR));
// if it doesn't match the hack filename, check next hack
if(strcmp(pszBufApp, pszBufHack) &&
!WOW32_strstr(pszBufApp, pszBufHack)) {
goto NextHack;
}
}
// if section strings don't match...
if(WOW32_stricmp((CHAR *)pszSection, pArgv[HPC_ORD_SECTION])) {
goto NextHack;
}
// if key strings match -- we've found our hack
if(!WOW32_stricmp((CHAR *)pszKey, pArgv[HPC_ORD_KEY])) {
goto FoundHack;
}
// else see if multiple keys are specified in the XML
else if(dwXmlFlags & HPC_MULTIKEY) {
// if so, go get them
LPSTR *argv;
int i, argc;
LPSTR psz;
psz = malloc_w(strlen(pArgv[HPC_ORD_KEY])+1);
if(NULL == psz) {
return(ul);
}
strcpy(psz, pArgv[HPC_ORD_KEY]);
argv = parsemulti(psz, &argc);
if(!argv || argc <= 1) {
WOW32ASSERTMSG((FALSE),
("\nWOW::ProfileHacks:Too few multikeys\n"));
free_w(psz);
goto NextHack;
}
// check each key specified
for(i = 0; i < argc; i++) {
// if we found a match, move on
if(!WOW32_stricmp((CHAR *)pszKey, argv[i])) {
free_w(argv);
free_w(psz);
goto FoundHack;
}
}
free_w(argv);
free_w(psz);
}
NextHack:
// adjust to the next set of hacks...
pArgv += HPC_ORD_LAST;
}
// if we find a matching hack spec, return the original ul.
if(i == cNumHacks) {
return(ul);
}
// If we get this far, the File, Section, and Key names all match
// so this is the hack we're interested in ... so exit the loop.
FoundHack:
// Now determine what we want to do for the hack
// Use the default value passed by the app?
if(dwXmlFlags & HPC_USEDEFAULT) {
// if it is a string function....
if(dwFlags & HPC_STRFUNCTION) {
if(cbRetBuf == 0) {
strcpy(pRetBuf, pDefault);
} else {
strncpy(pRetBuf, pDefault, cbRetBuf);
pRetBuf[cbRetBuf-1] = '\0';
}
if(dwXmlFlags & HPC_UPPERCASE) {
WOW32_strupr(pRetBuf);
}
else if(dwXmlFlags & HPC_LOWERCASE) {
WOW32_strlwr(pRetBuf);
}
return((ULONG)strlen(pRetBuf));
}
// else if it's an int function....
else if(dwFlags & HPC_INTFUNCTION) {
return((ULONG)iDefault);
}
}
// else if we need to convert the return value to a short path
else if(dwXmlFlags & HPC_CONVERTTOSHORTPATH) {
// if cbRetBuf is 0, we need to return the len of the long path since
// it will get copied into the buffer before we shorten it.
if(cbRetBuf == 0) {
return(ul);
}
// only do it if it is a string function....
if(dwFlags & HPC_STRFUNCTION) {
ul = GetShortPathName(pRetBuf, pRetBuf, cbRetBuf);
}
return(ul);
}
// else use the hack value supplied in the XML
else if(dwXmlFlags & HPC_RETURNHACKVALUE) {
// if it is a string function....
if(dwFlags & HPC_STRFUNCTION) {
// See commented out "szMCIQTW[]=" code et al in thunk for
// WK32GetPrivateProfileString()
if(dwXmlFlags & HPC_HASENVIRONMENTVAR) {
int len;
// get str of the form: "%windir%\system\file.ini" from the XML
strcpy(szBufHack, pArgv[HPC_ORD_NEWDATA]);
len = ExpandEnvironmentStrings(pArgv[HPC_ORD_NEWDATA],
szBufHack,
MAX_PATH);
if(len > MAX_PATH) {
WOW32ASSERTMSG((FALSE), ("\nWOW::ProfileHacks:XML new data field too long\n"));
return(ul);
}
if(cbRetBuf == 0) {
strcpy(pRetBuf, pszBufHack);
} else {
strncpy(pRetBuf, pszBufHack, cbRetBuf);
pRetBuf[cbRetBuf-1] = '\0';
}
if(dwXmlFlags & HPC_UPPERCASE) {
WOW32_strupr(pRetBuf);
}
else if(dwXmlFlags & HPC_LOWERCASE) {
WOW32_strlwr(pRetBuf);
}
return((ULONG)strlen(pRetBuf));
}
else {
if(cbRetBuf == 0) {
strcpy(pRetBuf, pArgv[HPC_ORD_NEWDATA]);
} else {
strncpy(pRetBuf, pArgv[HPC_ORD_NEWDATA], cbRetBuf);
pRetBuf[cbRetBuf-1] = '\0';
}
return((ULONG)strlen(pRetBuf));
}
}
// else if it's an int function....
else if(dwFlags & HPC_INTFUNCTION) {
return(AsciiToHex(pArgv[HPC_ORD_NEWDATA]));
}
}
// if we get to here something is amiss....
WOW32ASSERTMSG((FALSE),("WOW::ProfileHacks:Incorrect Flags!\n"));
return(ul);
}
ULONG FASTCALL WK32WritePrivateProfileString(PVDMFRAME pFrame)
{
ULONG ul;
PSZ pszSection;
PSZ pszKey;
PSZ pszValue;
PSZ pszFilename;
register PWRITEPRIVATEPROFILESTRING16 parg16;
BOOL fIsWinIni;
CHAR szLowercase[MAX_PATH];
GETARGPTR(pFrame, sizeof(WRITEPRIVATEPROFILESTRING16), parg16);
GETPSZPTR(parg16->f1, pszSection);
GETPSZPTR(parg16->f2, pszKey);
GETPSZPTR(parg16->f3, pszValue);
GETPSZPTR(parg16->f4, pszFilename);
UpdateDosCurrentDirectory(DIR_DOS_TO_NT);
strncpy(szLowercase, pszFilename, MAX_PATH);
szLowercase[MAX_PATH-1] = '\0';
WOW32_strlwr(szLowercase);
fIsWinIni = IS_WIN_INI(szLowercase);
// Trying to install or change default printer to fax printer?
if (fIsWinIni &&
pszSection &&
pszKey &&
pszValue &&
!WOW32_stricmp(pszSection, szDevices) &&
IsFaxPrinterWriteProfileString(pszSection, pszKey, pszValue)) {
ul = TRUE;
goto Done;
}
ul = GETBOOL16( DPM_WritePrivateProfileString(
pszSection,
pszKey,
pszValue,
pszFilename
));
if( ul != 0 &&
fIsWinIni &&
IS_EMBEDDING_SECTION( pszSection ) &&
pszKey != NULL &&
pszValue != NULL ) {
UpdateClassesRootSubKey( pszKey, pszValue);
}
Done:
FREEPSZPTR(pszSection);
FREEPSZPTR(pszKey);
FREEPSZPTR(pszValue);
FREEPSZPTR(pszFilename);
FREEARGPTR(parg16);
return ul;
}
ULONG FASTCALL WK32WriteProfileString(PVDMFRAME pFrame)
{
ULONG ul;
PSZ pszSection;
PSZ pszKey;
PSZ pszValue;
register PWRITEPROFILESTRING16 parg16;
GETARGPTR(pFrame, sizeof(WRITEPROFILESTRING16), parg16);
GETPSZPTR(parg16->f1, pszSection);
GETPSZPTR(parg16->f2, pszKey);
GETPSZPTR(parg16->f3, pszValue);
// For WinFax Lite install hack. Bug #126489 See wow32fax.c
if(!gbWinFaxHack) {
// Trying to install or change default printer to fax printer?
if (pszSection &&
pszKey &&
pszValue &&
!WOW32_stricmp(pszSection, szDevices) &&
IsFaxPrinterWriteProfileString(pszSection, pszKey, pszValue)) {
ul = TRUE;
goto Done;
}
} else {
IsFaxPrinterWriteProfileString(pszSection, pszKey, pszValue);
}
ul = GETBOOL16( DPM_WriteProfileString(
pszSection,
pszKey,
pszValue
));
if( ( ul != 0 ) &&
IS_EMBEDDING_SECTION( pszSection ) &&
( pszKey != NULL ) &&
( pszValue != NULL ) ) {
UpdateClassesRootSubKey( pszKey, pszValue);
}
Done:
FREEPSZPTR(pszSection);
FREEPSZPTR(pszKey);
FREEPSZPTR(pszValue);
FREEARGPTR(parg16);
return ul;
}
ULONG FASTCALL WK32GetProfileString(PVDMFRAME pFrame)
{
ULONG ul;
int len;
PSZ pszdef;
PSZ pszSection;
PSZ pszKey;
PSZ pszDefault;
PSZ pszReturnBuffer;
UINT cchMax;
#ifdef FE_SB
PSZ pszTmp = NULL;
#endif // FE_SB
register PGETPROFILESTRING16 parg16;
GETARGPTR(pFrame, sizeof(GETPROFILESTRING16), parg16);
GETPSZPTR(parg16->f1, pszSection);
GETPSZPTR(parg16->f2, pszKey);
GETPSZPTR(parg16->f3, pszDefault);
ALLOCVDMPTR(parg16->f4, parg16->f5, pszReturnBuffer);
cchMax = INT32(parg16->f5);
#ifdef FE_SB
//
// For those applications that expect sLongDate contains
// windows 3.1J picture format string.
//
if (GetSystemDefaultLangID() == 0x411 &&
!lstrcmpi(pszSection, "intl") && !lstrcmpi(pszKey, "sLongDate")) {
pszTmp = pszKey;
pszKey = "sLongDate16";
}
#endif // FE_SB
if (IS_EMBEDDING_SECTION( pszSection ) &&
!WasSectionRecentlyUpdated() ) {
if( pszKey == NULL ) {
UpdateEmbeddingAllKeys();
} else {
UpdateEmbeddingKey( pszKey );
}
SetLastTimeUpdated();
} else if (pszSection &&
pszKey &&
!WOW32_stricmp(pszSection, szDevices) &&
IsFaxPrinterSupportedDevice(pszKey)) {
ul = GETINT16(GetFaxPrinterProfileString(pszSection, pszKey, pszDefault, pszReturnBuffer, cchMax));
goto FlushAndReturn;
}
// Win 3.1 & Win 9x strip trailing white space chars differently than NT.
// We'll force the issue by cleaning up the default string *before* we call
// GetProfileString().
len = W31_w9x_MyStrLen(pszDefault);
if(len) {
pszdef = malloc_w(len+1);
if(pszdef) {
RtlCopyMemory(pszdef, pszDefault, len);
pszdef[len] = '\0';
}
else {
pszdef = pszDefault;
}
}
else {
pszdef = pszDefault;
}
ul = GETINT16(DPM_GetProfileString(
pszSection,
pszKey,
pszdef,
pszReturnBuffer,
cchMax));
//
// Win3.1/Win95 compatibility: Zap the first trailing blank in pszdef
// with null, but only if the default string was returned. To detect
// the default string being returned we need to ignore trailing blanks.
//
// This code is duplicated in thunks for GetProfileString and
// GetPrivateProfileString, update both if you make changes.
//
if ( pszdef && pszKey ) {
int n, nLenDef;
//
// Is the default the same as the returned string up to any NULLs?
//
nLenDef = 0;
n=0;
while (
(pszdef[nLenDef] == pszReturnBuffer[n]) &&
pszReturnBuffer[n]
) {
n++;
nLenDef++;
}
//
// Did we get out of the loop because we're at the end of the returned string?
//
if ( '\0' != pszReturnBuffer[n] ) {
//
// No. The strings are materially different - fall out.
//
}
else {
//
// Ok, the strings are identical to the end of the returned string.
// Is the default string spaces out to the end?
//
while ( ' ' == pszdef[nLenDef] ) {
nLenDef++;
}
//
// The last thing was not a space. If it was a NULL, then the app
// passed in a string with trailing NULLs as default. (Otherwise
// the two strings are materially different and we do nothing.)
//
if ( '\0' == pszdef[nLenDef] ) {
char szBuf[4]; // Some random, small number of chars to get.
// If the string is long, we'll get only 3 chars
// (and NULL), but so what? - we only need to know if
// we got a default last time...
//
// The returned string is the same as the default string
// without trailing blanks, but this might be coincidence,
// so see if a call with empty pszdef returns anything.
// If it does, we don't zap because the default isn't
// being used.
//
if (0 == DPM_GetProfileString(pszSection, pszKey, "", szBuf, sizeof(szBuf))) {
//
// Zap first trailing blank in pszdef with null.
//
pszdef[ul] = 0;
FLUSHVDMPTR(parg16->f3 + ul, 1, pszdef + ul);
}
}
}
}
if( CURRENTPTD()->dwWOWCompatFlags2 & WOWCF2_HACKPROFILECALL) {
ul = ProfileHacks(HPC_GETPROFILESTRING | HPC_STRFUNCTION,
NULL,
pszSection,
pszKey,
pszdef,
0,
pszReturnBuffer,
cchMax,
ul);
}
FlushAndReturn:
#ifdef FE_SB
if ( pszTmp )
pszKey = pszTmp;
if (CURRENTPTD()->dwWOWCompatFlagsFE & WOWCF_FE_USEUPPER) { // for WinWrite
if (pszSection && !lstrcmpi(pszSection, "windows") &&
pszKey && !lstrcmpi(pszKey, "device")) {
CharUpper(pszReturnBuffer);
}
if (pszSection && !lstrcmpi(pszSection, "devices") && pszKey) {
CharUpper(pszReturnBuffer);
}
}
#endif // FE_SB
if(pszdef && pszdef != pszDefault) {
free_w(pszdef);
}
FLUSHVDMPTR(parg16->f4, (ul + (pszSection && pszKey) ? 1 : 2), pszReturnBuffer);
FREEPSZPTR(pszSection);
FREEPSZPTR(pszKey);
FREEPSZPTR(pszDefault);
FREEVDMPTR(pszReturnBuffer);
FREEARGPTR(parg16);
RETURN(ul);
}
ULONG FASTCALL WK32GetPrivateProfileString(PVDMFRAME pFrame)
{
ULONG ul;
int len;
PSZ pszdef;
PSZ pszSection;
PSZ pszKey;
PSZ pszDefault;
PSZ pszReturnBuffer;
PSZ pszFilename;
UINT cchMax;
#ifdef FE_SB
PSZ pszTmp = NULL;
#endif // FE_SB
register PGETPRIVATEPROFILESTRING16 parg16;
CHAR szLowercase[MAX_PATH];
GETARGPTR(pFrame, sizeof(GETPRIVATEPROFILESTRING16), parg16);
GETPSZPTR(parg16->f1, pszSection);
GETPSZPTR(parg16->f2, pszKey);
GETPSZPTR(parg16->f3, pszDefault);
ALLOCVDMPTR(parg16->f4, parg16->f5, pszReturnBuffer);
GETPSZPTR(parg16->f6, pszFilename);
// PC3270 (Personal communications): while installing this app it calls
// GetPrivateProfileString (sectionname, NULL, defaultbuffer, returnbuffer,
// cch = 0, filename). On win31 this call returns relevant data in return
// buffer and corresponding size as return value. On NT, since the
// buffersize(cch) is '0' no data is copied into the return buffer and
// return value is zero which makes this app abort installation.
//
// So restricted compatibility:
// if above is the case set
// cch = 64k - offset of returnbuffer;
//
// A safer 'cch' would be
// cch = GlobalSize(selector of returnbuffer) -
// (offset of returnbuffer);
// - nanduri
if (!(cchMax = INT32(parg16->f5))) {
if (pszKey == (PSZ)NULL) {
if (pszReturnBuffer != (PSZ)NULL) {
cchMax = 0xffff - (LOW16(parg16->f4));
}
}
}
UpdateDosCurrentDirectory(DIR_DOS_TO_NT);
strncpy(szLowercase, pszFilename, MAX_PATH);
szLowercase[MAX_PATH-1] = '\0';
WOW32_strlwr(szLowercase);
if (IS_WIN_INI( szLowercase )) {
#ifdef FE_SB
//
// For those applications that expect sLongDate contains
// windows 3.1J picture format string.
//
if (GetSystemDefaultLangID() == 0x411 &&
lstrcmpi( pszSection, "intl") == 0 &&
lstrcmpi( pszKey, "sLongDate") == 0) {
pszTmp = pszKey;
pszKey = "sLongDate16";
}
#endif // FE_SB
if (IS_EMBEDDING_SECTION( pszSection ) &&
!WasSectionRecentlyUpdated() ) {
if( pszKey == NULL ) {
UpdateEmbeddingAllKeys();
} else {
UpdateEmbeddingKey( pszKey );
}
SetLastTimeUpdated();
} else if (pszSection &&
pszKey &&
!WOW32_stricmp(pszSection, szDevices) &&
IsFaxPrinterSupportedDevice(pszKey)) {
ul = GETINT16(GetFaxPrinterProfileString(pszSection, pszKey, pszDefault, pszReturnBuffer, cchMax));
goto FlushAndReturn;
}
}
// Win 3.1 & Win 9x strip trailing white space chars differently than NT.
// We'll force the issue by cleaning up the default string *before* we call
// GetProfileString().
len = W31_w9x_MyStrLen(pszDefault);
if(len) {
pszdef = malloc_w(len+1);
if(pszdef) {
RtlCopyMemory(pszdef, pszDefault, len);
pszdef[len] = '\0';
}
else {
pszdef = pszDefault;
}
}
else {
pszdef = pszDefault;
}
ul = GETUINT16(DPM_GetPrivateProfileString(
pszSection,
pszKey,
pszdef,
pszReturnBuffer,
cchMax,
pszFilename));
// start comaptibility hacks
//
// Win3.1/Win95 compatibility: Zap the first trailing blank in pszDefault
// with null, but only if the default string was returned. To detect
// the default string being returned we need to ignore trailing blanks.
//
// This code is duplicated in thunks for GetProfileString and
// GetPrivateProfileString, update both if you make changes.
//
if ( pszdef && pszKey ) {
int n, nLenDef;
//
// Is the default the same as the returned string up to any NULLs?
//
nLenDef = 0;
n=0;
while (
(pszdef[nLenDef] == pszReturnBuffer[n]) &&
pszReturnBuffer[n]
) {
n++;
nLenDef++;
}
//
// Did we get out of the loop because we're at the end of the returned string?
//
if ( '\0' != pszReturnBuffer[n] ) {
//
// No. The strings are materially different - fall out.
//
}
else {
//
// Ok, the strings are identical to the end of the returned string.
// Is the default string spaces out to the end?
//
while ( ' ' == pszdef[nLenDef] ) {
nLenDef++;
}
//
// The last thing was not a space. If it was a NULL, then the app
// passed in a string with trailing NULLs as default. (Otherwise
// the two strings are materially different and we do nothing.)
//
if ( '\0' == pszdef[nLenDef] ) {
char szBuf[4]; // Some random, small number of chars to get.
// If the string is long, we'll get only 3 chars
// (and NULL), but so what? - we only need to know if
// we got a default last time...
//
// The returned string is the same as the default string
// without trailing blanks, but this might be coincidence,
// so see if a call with empty pszdef returns anything.
// If it does, we don't zap because the default isn't
// being used.
//
if (0 == DPM_GetPrivateProfileString(pszSection, pszKey, "", szBuf, sizeof(szBuf), pszFilename)) {
//
// Zap first trailing blank in pszdef with null.
//
pszdef[ul] = 0;
FLUSHVDMPTR(parg16->f3 + ul, 1, pszdef + ul);
}
}
}
}
if( CURRENTPTD()->dwWOWCompatFlags2 & WOWCF2_HACKPROFILECALL) {
ul = ProfileHacks(HPC_GETPRIVATEPROFILESTRING | HPC_STRFUNCTION,
pszFilename,
pszSection,
pszKey,
pszdef,
0,
pszReturnBuffer,
cchMax,
ul);
}
/******************************************************************************
This was replaced by above:
if( CURRENTPTD()->dwWOWCompatFlagsEx & WOWCFEX_SAYITSNOTTHERE) {
// CrossTalk 2.2 gets hung in a loop while trying to match a printer in
// their xtalk.ini file with a printer name in the PrintDlg listbox.
// There is a bug in their code for handling this that gets exposed by
// the fact that NT PrintDlg listboxes do not include the port name as
// Win3.1 & Win'95 do. We avoid the buggy code altogether with this
// hack by telling them that the preferred printer isn't stored in
// xtalk.ini. See bug #43168 a-craigj
// Repro: net use lpt2: \\netprinter\share, start app, File\Print Setup
// Maximizer 5.0 has similar problem. it tries to parse
// print driver location however, allocates too small buffer. See
// Whistler bug 288491
if(!WOW32_stricmp(pszSection, "Printer")) {
if((WOW32_strstr(szLowercase, "xtalk.ini") && !WOW32_stricmp(pszKey, "Device")) || // CrossTalk 2.2
(WOW32_strstr(szLowercase, "bclwdde.ini") && !WOW32_stricmp(pszKey, "Driver")) ){ // Maximizer 5
// We can't use strncpy here. See how cchmax is calculated
// above. If we get a cchmax based on the end of the selector,
// we will cause more damage with a strncpy(dst,src, cchmax)
// because strncpy() NULL fills out to n. strcpy at least stops
// at the first null it encounters.
strcpy(pszReturnBuffer, pszdef);
ul = strlen(pszReturnBuffer);
}
}
}
if( CURRENTPTD()->dwWOWCompatFlagsEx & WOWCFEX_SAYITSNOTTHERE) {
// WHISTLER RAID BUG # 379253 05/06/2001 - alexsm
// National Geographic Explorer needed the oppisite of the above. The app
// was checking for a QTWVideo string, which contained a path to a quicktime
// driver. Without the key, the app wouldn't play video. It's not really a
// SAYITSNOTTHERE, more of a SAYITISTHERE, but this saves on compat bits.
if(!WOW32_stricmp(pszSection, "mci")) {
if((WOW32_strstr(szLowercase, "system.ini") && !WOW32_stricmp(pszKey, "QTWVideo"))) {
DWORD cbWindir;
CHAR szMCIQTW[] = "\\system\\mciqtw.drv";
CHAR szQTWVideo[MAX_PATH + sizeof(szMCIQTW) / sizeof(CHAR)]; // make sure there's room for the new string (max_path + pszMCIQTW)
cbWindir = GetSystemWindowsDirectory(szQTWVideo, MAX_PATH);
if((cbWindir == 0) ||
(cbWindir > MAX_PATH-(strlen(szMCIQTW)+1/sizeof(CHAR)))) {
ul = cbWindir;
pszReturnBuffer[0] = '\0';
goto FlushAndReturn;
}
strcat(szQTWVideo, szMCIQTW);
// We can't use strncpy here. See how cchmax is calculated
// above. If we get a cchmax based on the end of the selector,
// we will cause more damage with a strncpy(dst,src, cchmax)
// because strncpy() NULL fills out to n. strcpy at least stops
// at the first null it encounters.
strcpy(pszReturnBuffer, szQTWVideo);
ul = strlen(szQTWVideo);
}
}
}
*******************************************************************************/
FlushAndReturn:
#ifdef FE_SB
if ( pszTmp )
pszKey = pszTmp;
#endif // FE_SB
if (ul) {
FLUSHVDMPTR(parg16->f4, (ul + (pszSection && pszKey) ? 1 : 2), pszReturnBuffer);
LOGDEBUG(8,("GetPrivateProfileString returns '%s'\n", pszReturnBuffer));
}
#ifdef DEBUG
//
// Check for bad return on retrieving entire section by walking
// the section making sure it's full of null-terminated strings
// with an extra null at the end. Also ensure that this all fits
// within the buffer.
//
if (!pszKey) {
PSZ psz;
//
// We don't want to complain if the poorly-formed buffer was the one
// passed in as pszDefault by the caller.
//
// Although the api docs clearly state that pszDefault should never
// be null but win3.1 is nice enough to still deal with this. Delphi is
// passing pszDefault as NULL and this following code causes an
// assertion in WOW. So added the pszDefault check first.
//
// sudeepb 11-Sep-1995
if (!pszdef || WOW32_strcmp(pszReturnBuffer, pszdef)) {
psz = pszReturnBuffer;
while (psz < (pszReturnBuffer + ul + 2) && *psz) {
psz += strlen(psz) + 1;
}
WOW32ASSERTMSGF(
psz < (pszReturnBuffer + ul + 2),
("GetPrivateProfileString of entire section returns poorly formed buffer.\n"
"pszReturnBuffer = %p, return value = %d\n",
pszReturnBuffer,
ul
));
}
}
#endif // DEBUG
if(pszdef && pszdef != pszDefault) {
free_w(pszdef);
}
FREEPSZPTR(pszSection);
FREEPSZPTR(pszKey);
FREEPSZPTR(pszDefault);
FREEVDMPTR(pszReturnBuffer);
FREEPSZPTR(pszFilename);
FREEARGPTR(parg16);
RETURN(ul);
}
ULONG FASTCALL WK32GetProfileInt(PVDMFRAME pFrame)
{
ULONG ul;
PSZ psz1;
PSZ psz2;
register PGETPROFILEINT16 parg16;
GETARGPTR(pFrame, sizeof(GETPROFILEINT16), parg16);
GETPSZPTR(parg16->f1, psz1);
GETPSZPTR(parg16->f2, psz2);
ul = GETWORD16(DPM_GetProfileInt(
psz1,
psz2,
INT32(parg16->f3)
));
if( CURRENTPTD()->dwWOWCompatFlags2 & WOWCF2_HACKPROFILECALL) {
ul = ProfileHacks(HPC_GETPROFILEINT | HPC_INTFUNCTION,
NULL,
psz1,
psz2,
NULL,
INT32(parg16->f3),
NULL,
0,
ul);
}
//
// In HKEY_CURRENT_USER\Control Panel\Desktop\WindowMetrics, there
// are a bunch of values that define the screen appearance. You can
// watch these values get updated when you go into the display control
// panel applet and change the "appearance scheme", or any of the
// individual elements. The win95 shell is different than win31 in that it
// sticks "twips" values in there instead of pixels. These are calculated
// with the following formula:
//
// twips = - pixels * 72 * 20 / cyPixelsPerInch
//
// pixels = -twips * cyPixelsPerInch / (72*20)
//
// So if the value is negative, it is in twips, otherwise it in pixels.
// The idea is that these values are device independent. NT is
// different than win95 in that we provide an Ini file mapping to this
// section of the registry where win95 does not. Now, when the Lotus
// Freelance Graphics 2.1 tutorial runs, it mucks around with the look
// of the screen, and it changes the border width of window frames by
// using SystemParametersInfo(). When it tries to restore it, it uses
// GetProfileInt("Windows", "BorderWidth", <default>), which on win31
// returns pixels, on win95 returns the default (no ini mapping), and
// on NT returns TWIPS. Since this negative number is interpreted as
// a huge UINT, then the window frames become huge. What this code
// below will do is translate the number back to pixels. [neilsa]
//
if ((CURRENTPTD()->dwWOWCompatFlagsEx & WOWCFEX_PIXELMETRICS) &&
!WOW32_stricmp(psz1, "Windows") &&
!WOW32_stricmp(psz2, "BorderWidth") &&
((INT)ul < 0)) {
HDC hDC = CreateDC("DISPLAY", NULL, NULL, NULL);
if (hDC ) {
ul = (ULONG) (-(INT)ul * GetDeviceCaps(hDC, LOGPIXELSY)/(72*20));
DeleteDC(hDC);
}
}
FREEPSZPTR(psz1);
FREEPSZPTR(psz2);
FREEARGPTR(parg16);
RETURN(ul);
}
ULONG FASTCALL WK32GetPrivateProfileSection(PVDMFRAME pFrame)
{
ULONG ul;
PSZ psz1;
PSZ psz2;
PSZ psz4;
register PGETPRIVATEPROFILESECTION16 parg16;
GETARGPTR(pFrame, sizeof(GETPRIVATEPROFILESECTION16), parg16);
GETPSZPTR(parg16->lpszSection, psz1);
GETPSZPTR(parg16->lpResult, psz2);
GETPSZPTR(parg16->lpszFile, psz4);
UpdateDosCurrentDirectory(DIR_DOS_TO_NT);
ul = GETDWORD16(DPM_GetPrivateProfileSection(
psz1,
psz2,
DWORD32(parg16->cchResult),
psz4
));
FREEPSZPTR(psz1);
FREEPSZPTR(psz2);
FREEPSZPTR(psz4);
FREEARGPTR(parg16);
RETURN(ul);
}
ULONG FASTCALL WK32GetProfileSection(PVDMFRAME pFrame)
{
ULONG ul;
PSZ psz1;
PSZ psz2;
register PGETPROFILESECTION16 parg16;
GETARGPTR(pFrame, sizeof(GETPROFILESECTION16), parg16);
GETPSZPTR(parg16->lpszSection, psz1);
GETPSZPTR(parg16->lpResult, psz2);
ul = GETDWORD16(DPM_GetProfileSection(
psz1,
psz2,
DWORD32(parg16->cchResult)
));
FREEPSZPTR(psz1);
FREEPSZPTR(psz2);
FREEARGPTR(parg16);
RETURN(ul);
}
ULONG FASTCALL WK32WritePrivateProfileSection(PVDMFRAME pFrame)
{
ULONG ul;
PSZ psz1;
PSZ psz2;
PSZ psz3;
register PWRITEPRIVATEPROFILESECTION16 parg16;
GETARGPTR(pFrame, sizeof(WRITEPRIVATEPROFILESECTION16), parg16);
GETPSZPTR(parg16->lpszSection, psz1);
GETPSZPTR(parg16->lpKeysAndValues, psz2);
GETPSZPTR(parg16->lpszFile, psz3);
UpdateDosCurrentDirectory(DIR_DOS_TO_NT);
ul = GETBOOL16(DPM_WritePrivateProfileSection(
psz1,
psz2,
psz3
));
FREEPSZPTR(psz1);
FREEPSZPTR(psz2);
FREEPSZPTR(psz3);
FREEARGPTR(parg16);
RETURN(ul);
}
ULONG FASTCALL WK32WriteProfileSection(PVDMFRAME pFrame)
{
ULONG ul;
PSZ psz1;
PSZ psz2;
register PWRITEPROFILESECTION16 parg16;
GETARGPTR(pFrame, sizeof(WRITEPROFILESECTION16), parg16);
GETPSZPTR(parg16->lpszSection, psz1);
GETPSZPTR(parg16->lpKeysAndValues, psz2);
ul = GETBOOL16(DPM_WriteProfileSection(
psz1,
psz2
));
FREEPSZPTR(psz1);
FREEPSZPTR(psz2);
FREEARGPTR(parg16);
RETURN(ul);
}
ULONG FASTCALL WK32GetPrivateProfileSectionNames(PVDMFRAME pFrame)
{
ULONG ul;
PSZ psz1;
PSZ psz3;
register PGETPRIVATEPROFILESECTIONNAMES16 parg16;
GETARGPTR(pFrame, sizeof(GETPRIVATEPROFILESECTIONNAMES16), parg16);
GETPSZPTR(parg16->lpszBuffer, psz1);
GETPSZPTR(parg16->lpszFile, psz3);
UpdateDosCurrentDirectory(DIR_DOS_TO_NT);
ul = GETDWORD16(DPM_GetPrivateProfileSectionNames(
psz1,
DWORD32(parg16->cbBuffer),
psz3
));
FREEPSZPTR(psz1);
FREEPSZPTR(psz3);
FREEARGPTR(parg16);
RETURN(ul);
}
/*
ULONG FASTCALL WK32GetProfileSectionNames(PVDMFRAME pFrame)
This is implemneted by krnl386 calling GetPrivateProfileSectionNames()
with the filename = "win.ini"
*/
ULONG FASTCALL WK32GetPrivateProfileStruct(PVDMFRAME pFrame)
{
ULONG ul;
PSZ psz1;
PSZ psz2;
PSZ psz3;
PSZ psz5;
register PGETPRIVATEPROFILESTRUCT16 parg16;
GETARGPTR(pFrame, sizeof(GETPRIVATEPROFILESTRUCT16), parg16);
GETPSZPTR(parg16->lpszSection, psz1);
GETPSZPTR(parg16->lpszKey, psz2);
GETPSZPTR(parg16->lpStruct, psz3);
GETPSZPTR(parg16->lpszFile, psz5);
UpdateDosCurrentDirectory(DIR_DOS_TO_NT);
ul = GETBOOL16(DPM_GetPrivateProfileStruct(
psz1,
psz2,
psz3,
UINT32(parg16->cbStruct),
psz5
));
FREEPSZPTR(psz1);
FREEPSZPTR(psz2);
FREEPSZPTR(psz3);
FREEPSZPTR(psz5);
FREEARGPTR(parg16);
RETURN(ul);
}
ULONG FASTCALL WK32WritePrivateProfileStruct(PVDMFRAME pFrame)
{
ULONG ul;
PSZ psz1;
PSZ psz2;
PSZ psz3;
PSZ psz5;
register PWRITEPRIVATEPROFILESTRUCT16 parg16;
GETARGPTR(pFrame, sizeof(WRITEPRIVATEPROFILESTRUCT16), parg16);
GETPSZPTR(parg16->lpszSection, psz1);
GETPSZPTR(parg16->lpszKey, psz2);
GETPSZPTR(parg16->lpStruct, psz3);
GETPSZPTR(parg16->lpszFile, psz5);
UpdateDosCurrentDirectory(DIR_DOS_TO_NT);
ul = GETBOOL16(DPM_WritePrivateProfileStruct(
psz1,
psz2,
psz3,
UINT32(parg16->cbStruct),
psz5
));
FREEPSZPTR(psz1);
FREEPSZPTR(psz2);
FREEPSZPTR(psz3);
FREEPSZPTR(psz5);
FREEARGPTR(parg16);
RETURN(ul);
}
ULONG FASTCALL WK32GetPrivateProfileInt(PVDMFRAME pFrame)
{
ULONG ul;
PSZ psz1;
PSZ psz2;
PSZ psz4;
register PGETPRIVATEPROFILEINT16 parg16;
GETARGPTR(pFrame, sizeof(GETPRIVATEPROFILEINT16), parg16);
GETPSZPTR(parg16->f1, psz1);
GETPSZPTR(parg16->f2, psz2);
GETPSZPTR(parg16->f4, psz4);
UpdateDosCurrentDirectory(DIR_DOS_TO_NT);
ul = GETWORD16(DPM_GetPrivateProfileInt(
psz1,
psz2,
INT32(parg16->f3),
psz4
));
if( CURRENTPTD()->dwWOWCompatFlags2 & WOWCF2_HACKPROFILECALL) {
ul = ProfileHacks(HPC_GETPRIVATEPROFILEINT | HPC_INTFUNCTION,
psz4,
psz1,
psz2,
NULL,
INT32(parg16->f3),
NULL,
0,
ul);
}
/******************************************************************************
This was replaced by above:
// jarbats
// sierra's setup faults overwriting video/sound buffer
// limits. by returning videospeed as non-existent
// we force it to use the default videospeed path,not the optimized
// "bad" path code.
// this is matching with setup.exe in the registry which is not specific
// enough. post-beta2 enhance matching process to match version resources
if((CURRENTPTD()->dwWOWCompatFlagsEx & WOWCFEX_SAYITSNOTTHERE) &&
(!WOW32_stricmp(psz4, "sierra.ini") || WOW32_strstr(psz4, "sierra.ini")))
{
if(!WOW32_stricmp(psz1,"Config") && !WOW32_stricmp(psz2,"VideoSpeed")) {
ul = parg16->f3;
}
// King's Quest VI will go into the lame multi-media code for fullscreen
// which tries to fool apps into thinking they're running "full screen"
// in a small window on the desktop. It works unless the apps try to
// get the screen size & then use that in calculations in conjunction
// with metrics it gets from the "full screen" window. Things go south
// pretty fast fromn there. Bug #427155.
else if(!WOW32_stricmp(psz1,"info") &&
!WOW32_stricmp(psz2,"movieplayer")) {
ul = 0; // return 0 instead of 1. "movieplayer=1" in sierra.ini
}
}
*******************************************************************************/
FREEPSZPTR(psz1);
FREEPSZPTR(psz2);
FREEPSZPTR(psz4);
FREEARGPTR(parg16);
RETURN(ul);
}
ULONG FASTCALL WK32GetModuleFileName(PVDMFRAME pFrame)
{
ULONG ul;
PSZ psz2;
register PGETMODULEFILENAME16 parg16;
HANDLE hT;
GETARGPTR(pFrame, sizeof(GETMODULEFILENAME16), parg16);
ALLOCVDMPTR(parg16->f2, parg16->f3, psz2);
//
// ShellExecute DDE returns (HINST)33 when DDE is used
// to satisfy a request. This looks like a task alias
// to ISTASKALIAS but it's not.
//
if ( ISTASKALIAS(parg16->f1) && 33 != parg16->f1) {
ul = GetHtaskAliasProcessName(parg16->f1,psz2,INT32(parg16->f3));
} else {
hT = (parg16->f1 && (33 != parg16->f1))
? (HMODULE32(parg16->f1))
: GetModuleHandle(NULL) ;
ul = GETINT16(GetModuleFileName(hT, psz2, INT32(parg16->f3)));
}
FLUSHVDMPTR(parg16->f2, strlen(psz2)+1, psz2);
FREEVDMPTR(psz2);
FREEARGPTR(parg16);
RETURN(ul);
}
ULONG FASTCALL WK32WOWFreeResource(PVDMFRAME pFrame)
{
ULONG ul;
register PWOWFREERESOURCE16 parg16;
GETARGPTR(pFrame, sizeof(*parg16), parg16);
ul = GETBOOL16(FreeResource(
HCURSOR32(parg16->f1)
));
FREEARGPTR(parg16);
RETURN(ul);
}
ULONG FASTCALL WK32GetDriveType(PVDMFRAME pFrame)
{
ULONG ul;
CHAR RootPathName[] = "?:\\";
register PGETDRIVETYPE16 parg16;
GETARGPTR(pFrame, sizeof(GETDRIVETYPE16), parg16);
// Form Root path
RootPathName[0] = (CHAR)('A'+ parg16->f1);
ul = DPM_GetDriveType (RootPathName);
// bugbug - temporariy fixed, should be removed when base changes
// its return value for non-exist drives
// Windows 3.0 sdk manaul said this api should return 1
// if the drive doesn't exist. Windows 3.1 sdk manual said
// this api should return 0 if it failed. Windows 3.1 winfile.exe
// expects 0 for noexisting drives. The NT WIN32 API uses
// 3.0 convention. Therefore, we reset the value to zero
// if it is 1.
if (ul <= 1)
ul = 0;
// DRIVE_CDROM and DRIVE_RAMDISK are not supported under Win 3.1
if ( ul == DRIVE_CDROM ) {
ul = DRIVE_REMOTE;
}
if ( ul == DRIVE_RAMDISK ) {
ul = DRIVE_FIXED;
}
FREEARGPTR(parg16);
RETURN(ul);
}
/* WK32TermsrvGetWindowsDir - Front end to TermsrvGetWindowDirectory.
*
*
* Entry - pszPath - Pointer to return buffer for path (ascii)
* usPathLen - Size of path buffer (bytes)
*
* Exit
* SUCCESS
* True
*
* FAILURE
* False
*
*/
ULONG FASTCALL WK32TermsrvGetWindowsDir(PVDMFRAME pFrame)
{
PTERMSRVGETWINDIR16 parg16;
PSTR psz;
NTSTATUS Status = 0;
USHORT usPathLen;
CHAR szWinDir[MAX_PATH];
//
// Get arguments.
//
GETARGPTR(pFrame, sizeof(TERMSRVGETWINDIR16), parg16);
psz = SEGPTR(FETCHWORD(parg16->pszPathSegment),
FETCHWORD(parg16->pszPathOffset));
usPathLen = FETCHWORD(parg16->usPathLen);
FREEARGPTR(parg16);
// Get possible long path name version
Status = GetWindowsDirectoryA(szWinDir, sizeof(szWinDir));
// If this is a long path name then get the short one
// Otherwise it will return the same path
if(Status && Status < sizeof(szWinDir)) {
Status = DPM_GetShortPathName(szWinDir, psz, (DWORD)usPathLen);
if(Status >= usPathLen) {
psz[0] = '\0';
Status = 0;
} else {
// Get the real size.
Status = lstrlen(psz);
}
}
else {
Status = 0;
}
return(NT_SUCCESS(Status));
}
// This is the strlen function that Windows 3.1 and Win 9x call from the various
// GetxxxProfileString(), and WritexxxProfilexxx() functions.
// It basically returns the length of a string sans trailing spaces and chars
// <= Carriage returns.
// See: \\papyrus\w98se\proj\win\src\CORE\KERNEL\up.c\MyStrLen()
/*
MyStrLen() {
_asm {
; SPACE, CR, NULL never in DBCS lead byte, so we are safe here
push ax
mov cx, di ; CX = start of string
dec di
str1:
inc di
mov al, es:[di] ; Get next character
cmp al, CR
ja str1 ; Not CR or NULL
str2:
cmp di, cx ; Back at the start?
jbe str3 ; yes
dec di ; Previous character
cmp byte ptr es:[di], SPACE
je str2 ; skip spaces
inc di ; Back to CR or NULL
str3:
cmp es:[di], al
je maybe_in_code ; PMODE hack
mov es:[di], al ; Zap trailing spaces
maybe_in_code:
neg cx ; Calculate length
add cx, di
pop ax
}}
*/
int W31_w9x_MyStrLen(LPSTR lpstr)
{
int len = 0;
char c;
LPSTR lpStart = lpstr;
if((lpstr == NULL) || (*lpstr == '\0')) {
return(0);
}
// look for first char <= CR (including NULL)
// SPACE, CR, NULL never in DBCS lead byte, so we are safe here
while(*lpstr > '\r') {
len++;
lpstr++;
}
c = *lpstr; // save char <= CR or NULL
// strip out any trailing spaces
while(lpstr > lpStart) {
lpstr--;
if(*lpstr != ' ') {
break;
}
len--;
}
lpStart[len] = c;
return(len);
}