[perl5.git] / win32 / vdir.h

/* vdir.h
 *
 * (c) 1999 Microsoft Corporation. All rights reserved. 
 * Portions (c) 1999 ActiveState Tool Corp, http://www.ActiveState.com/
 *
 *    You may distribute under the terms of either the GNU General Public
 *    License or the Artistic License, as specified in the README file.
 */

#ifndef ___VDir_H___
#define ___VDir_H___

/*
 * Allow one slot for each possible drive letter
 * and one additional slot for a UNC name
 */
const int driveCount = ('Z'-'A')+1+1;

class VDir
{
public:
    VDir(int bManageDir = 1);
    ~VDir() {};

    void Init(VDir* pDir, VMem *pMem);
    void SetDefaultA(char const *pDefault);
    void SetDefaultW(WCHAR const *pDefault);
    char* MapPathA(const char *pInName);
    WCHAR* MapPathW(const WCHAR *pInName);
    int SetCurrentDirectoryA(char *lpBuffer);
    int SetCurrentDirectoryW(WCHAR *lpBuffer);
    inline int GetDefault(void) { return nDefault; };

    inline char* GetCurrentDirectoryA(int dwBufSize, char *lpBuffer)
    {
	char* ptr = dirTableA[nDefault];
	while (--dwBufSize)
	{
	    if ((*lpBuffer++ = *ptr++) == '\0')
		break;
	}
        *lpBuffer = '\0';
	return /* unused */ NULL;
    };
    inline WCHAR* GetCurrentDirectoryW(int dwBufSize, WCHAR *lpBuffer)
    {
	WCHAR* ptr = dirTableW[nDefault];
	while (--dwBufSize)
	{
	    if ((*lpBuffer++ = *ptr++) == '\0')
		break;
	}
        *lpBuffer = '\0';
	return /* unused */ NULL;
    };

    DWORD CalculateEnvironmentSpace(void);
    LPSTR BuildEnvironmentSpace(LPSTR lpStr);

protected:
    int SetDirA(char const *pPath, int index);
    int SetDirW(WCHAR const *pPath, int index);
    void FromEnvA(char *pEnv, int index);
    void FromEnvW(WCHAR *pEnv, int index);

    inline const char *GetDefaultDirA(void)
    {
	return dirTableA[nDefault];
    };
    inline void SetDefaultDirA(char const *pPath, int index)
    {
	SetDirA(pPath, index);
	nDefault = index;
    };
    inline const WCHAR *GetDefaultDirW(void)
    {
	return dirTableW[nDefault];
    };
    inline void SetDefaultDirW(WCHAR const *pPath, int index)
    {
	SetDirW(pPath, index);
	nDefault = index;
    };
    inline const char *GetDirA(int index)
    {
	char *ptr = dirTableA[index];
	if (!ptr) {
	    /* simulate the existance of this drive */
	    ptr = szLocalBufferA;
	    ptr[0] = 'A' + index;
	    ptr[1] = ':';
	    ptr[2] = '\\';
	    ptr[3] = 0;
	}
	return ptr;
    };
    inline const WCHAR *GetDirW(int index)
    {
	WCHAR *ptr = dirTableW[index];
	if (!ptr) {
	    /* simulate the existance of this drive */
	    ptr = szLocalBufferW;
	    ptr[0] = 'A' + index;
	    ptr[1] = ':';
	    ptr[2] = '\\';
	    ptr[3] = 0;
	}
	return ptr;
    };

    inline int DriveIndex(char chr)
    {
	if (chr == '\\' || chr == '/')
	    return ('Z'-'A')+1;
	return (chr | 0x20)-'a';
    };

    VMem *pMem;
    int nDefault, bManageDirectory;
    char *dirTableA[driveCount];
    char szLocalBufferA[MAX_PATH+1];
    WCHAR *dirTableW[driveCount];
    WCHAR szLocalBufferW[MAX_PATH+1];
};


VDir::VDir(int bManageDir /* = 1 */)
{
    nDefault = 0;
    bManageDirectory = bManageDir;
    memset(dirTableA, 0, sizeof(dirTableA));
    memset(dirTableW, 0, sizeof(dirTableW));
}

void VDir::Init(VDir* pDir, VMem *p)
{
    int index;

    pMem = p;
    if (pDir) {
	for (index = 0; index < driveCount; ++index) {
	    SetDirW(pDir->GetDirW(index), index);
	}
	nDefault = pDir->GetDefault();
    }
    else {
	int bSave = bManageDirectory;
	DWORD driveBits = GetLogicalDrives();

	bManageDirectory = 0;
        WCHAR szBuffer[MAX_PATH*driveCount];
        if (GetLogicalDriveStringsW(sizeof(szBuffer), szBuffer)) {
            WCHAR* pEnv = GetEnvironmentStringsW();
            WCHAR* ptr = szBuffer;
            for (index = 0; index < driveCount; ++index) {
                if (driveBits & (1<<index)) {
                    ptr += SetDirW(ptr, index) + 1;
                    FromEnvW(pEnv, index);
                }
            }
            FreeEnvironmentStringsW(pEnv);
        }
        SetDefaultW(L".");
	bManageDirectory = bSave;
  }
}

int VDir::SetDirA(char const *pPath, int index)
{
    char chr, *ptr;
    int length = 0;
    WCHAR wBuffer[MAX_PATH+1];
    if (index < driveCount && pPath != NULL) {
	length = strlen(pPath);
	pMem->Free(dirTableA[index]);
	ptr = dirTableA[index] = (char*)pMem->Malloc(length+2);
	if (ptr != NULL) {
	    strcpy(ptr, pPath);
	    ptr += length-1;
	    chr = *ptr++;
	    if (chr != '\\' && chr != '/') {
		*ptr++ = '\\';
		*ptr = '\0';
	    }
	    MultiByteToWideChar(CP_ACP, 0, dirTableA[index], -1,
		    wBuffer, (sizeof(wBuffer)/sizeof(WCHAR)));
	    length = wcslen(wBuffer);
	    pMem->Free(dirTableW[index]);
	    dirTableW[index] = (WCHAR*)pMem->Malloc((length+1)*2);
	    if (dirTableW[index] != NULL) {
		wcscpy(dirTableW[index], wBuffer);
	    }
	}
    }

    if(bManageDirectory)
	::SetCurrentDirectoryA(pPath);

    return length;
}

void VDir::FromEnvA(char *pEnv, int index)
{   /* gets the directory for index from the environment variable. */
    while (*pEnv != '\0') {
	if ((pEnv[0] == '=') && (DriveIndex(pEnv[1]) == index)) {
	    SetDirA(&pEnv[4], index);
	    break;
	}
	else
	    pEnv += strlen(pEnv)+1;
    }
}

void VDir::FromEnvW(WCHAR *pEnv, int index)
{   /* gets the directory for index from the environment variable. */
    while (*pEnv != '\0') {
	if ((pEnv[0] == '=') && (DriveIndex((char)pEnv[1]) == index)) {
	    SetDirW(&pEnv[4], index);
	    break;
	}
	else
	    pEnv += wcslen(pEnv)+1;
    }
}

void VDir::SetDefaultA(char const *pDefault)
{
    char szBuffer[MAX_PATH+1];
    char *pPtr;

    if (GetFullPathNameA(pDefault, sizeof(szBuffer), szBuffer, &pPtr)) {
        if (*pDefault != '.' && pPtr != NULL)
	    *pPtr = '\0';

	SetDefaultDirA(szBuffer, DriveIndex(szBuffer[0]));
    }
}

int VDir::SetDirW(WCHAR const *pPath, int index)
{
    WCHAR chr, *ptr;
    int length = 0;
    if (index < driveCount && pPath != NULL) {
	length = wcslen(pPath);
	pMem->Free(dirTableW[index]);
	ptr = dirTableW[index] = (WCHAR*)pMem->Malloc((length+2)*2);
	if (ptr != NULL) {
            char *ansi;
	    wcscpy(ptr, pPath);
	    ptr += length-1;
	    chr = *ptr++;
	    if (chr != '\\' && chr != '/') {
		*ptr++ = '\\';
		*ptr = '\0';
	    }
            ansi = win32_ansipath(dirTableW[index]);
	    length = strlen(ansi);
	    pMem->Free(dirTableA[index]);
	    dirTableA[index] = (char*)pMem->Malloc(length+1);
	    if (dirTableA[index] != NULL) {
		strcpy(dirTableA[index], ansi);
	    }
            win32_free(ansi);
	}
    }

    if(bManageDirectory)
	::SetCurrentDirectoryW(pPath);

    return length;
}

void VDir::SetDefaultW(WCHAR const *pDefault)
{
    WCHAR szBuffer[MAX_PATH+1];
    WCHAR *pPtr;

    if (GetFullPathNameW(pDefault, (sizeof(szBuffer)/sizeof(WCHAR)), szBuffer, &pPtr)) {
        if (*pDefault != '.' && pPtr != NULL)
	    *pPtr = '\0';

	SetDefaultDirW(szBuffer, DriveIndex((char)szBuffer[0]));
    }
}

inline BOOL IsPathSep(char ch)
{
    return (ch == '\\' || ch == '/');
}

inline void DoGetFullPathNameA(char* lpBuffer, DWORD dwSize, char* Dest)
{
    char *pPtr;

    /*
     * On WinNT GetFullPathName does not fail, (or at least always
     * succeeds when the drive is valid) WinNT does set *Dest to NULL
     * On Win98 GetFullPathName will set last error if it fails, but
     * does not touch *Dest
     */
    *Dest = '\0';
    GetFullPathNameA(lpBuffer, dwSize, Dest, &pPtr);
}

inline bool IsSpecialFileName(const char* pName)
{
    /* specical file names are devices that the system can open
     * these include AUX, CON, NUL, PRN, COMx, LPTx, CLOCK$, CONIN$, CONOUT$
     * (x is a single digit, and names are case-insensitive)
     */
    char ch = (pName[0] & ~0x20);
    switch (ch)
    {
	case 'A': /* AUX */
	    if (((pName[1] & ~0x20) == 'U')
		&& ((pName[2] & ~0x20) == 'X')
		&& !pName[3])
		    return true;
	    break;
	case 'C': /* CLOCK$, COMx,  CON, CONIN$ CONOUT$ */
	    ch = (pName[1] & ~0x20);
	    switch (ch)
	    {
		case 'L': /* CLOCK$ */
		    if (((pName[2] & ~0x20) == 'O')
			&& ((pName[3] & ~0x20) == 'C')
			&& ((pName[4] & ~0x20) == 'K')
			&& (pName[5] == '$')
			&& !pName[6])
			    return true;
		    break;
		case 'O': /* COMx,  CON, CONIN$ CONOUT$ */
		    if ((pName[2] & ~0x20) == 'M') {
			if ((pName[3] >= '1') && (pName[3] <= '9')
			    && !pName[4])
			    return true;
		    }
		    else if ((pName[2] & ~0x20) == 'N') {
			if (!pName[3])
			    return true;
			else if ((pName[3] & ~0x20) == 'I') {
			    if (((pName[4] & ~0x20) == 'N')
				&& (pName[5] == '$')
				&& !pName[6])
			    return true;
			}
			else if ((pName[3] & ~0x20) == 'O') {
			    if (((pName[4] & ~0x20) == 'U')
				&& ((pName[5] & ~0x20) == 'T')
				&& (pName[6] == '$')
				&& !pName[7])
			    return true;
			}
		    }
		    break;
	    }
	    break;
	case 'L': /* LPTx */
	    if (((pName[1] & ~0x20) == 'U')
		&& ((pName[2] & ~0x20) == 'X')
		&& (pName[3] >= '1') && (pName[3] <= '9')
		&& !pName[4])
		    return true;
	    break;
	case 'N': /* NUL */
	    if (((pName[1] & ~0x20) == 'U')
		&& ((pName[2] & ~0x20) == 'L')
		&& !pName[3])
		    return true;
	    break;
	case 'P': /* PRN */
	    if (((pName[1] & ~0x20) == 'R')
		&& ((pName[2] & ~0x20) == 'N')
		&& !pName[3])
		    return true;
	    break;
    }
    return false;
}

char *VDir::MapPathA(const char *pInName)
{   /*
     * possiblities -- relative path or absolute path with or without drive letter
     * OR UNC name
     */
    char szBuffer[(MAX_PATH+1)*2];
    char szlBuf[MAX_PATH+1];
    int length = strlen(pInName);

    if (!length)
	return (char*)pInName;

    if (length > MAX_PATH) {
	strncpy(szlBuf, pInName, MAX_PATH);
	if (IsPathSep(pInName[0]) && !IsPathSep(pInName[1])) {   
	    /* absolute path - reduce length by 2 for drive specifier */
	    szlBuf[MAX_PATH-2] = '\0';
	}
	else
	    szlBuf[MAX_PATH] = '\0';
	pInName = szlBuf;
    }
    /* strlen(pInName) is now <= MAX_PATH */

    if (pInName[1] == ':') {
	/* has drive letter */
	if (IsPathSep(pInName[2])) {
	    /* absolute with drive letter */
	    DoGetFullPathNameA((char*)pInName, sizeof(szLocalBufferA), szLocalBufferA);
	}
	else {
	    /* relative path with drive letter */
	    strcpy(szBuffer, GetDirA(DriveIndex(*pInName)));
	    strcat(szBuffer, &pInName[2]);
	    if(strlen(szBuffer) > MAX_PATH)
		szBuffer[MAX_PATH] = '\0';

	    DoGetFullPathNameA(szBuffer, sizeof(szLocalBufferA), szLocalBufferA);
	}
    }
    else {
	/* no drive letter */
	if (IsPathSep(pInName[1]) && IsPathSep(pInName[0])) {
	    /* UNC name */
	    DoGetFullPathNameA((char*)pInName, sizeof(szLocalBufferA), szLocalBufferA);
	}
	else {
	    strcpy(szBuffer, GetDefaultDirA());
	    if (IsPathSep(pInName[0])) {
		/* absolute path */
		strcpy(&szBuffer[2], pInName);
		DoGetFullPathNameA(szBuffer, sizeof(szLocalBufferA), szLocalBufferA);
	    }
	    else {
		/* relative path */
		if (IsSpecialFileName(pInName)) {
		    return (char*)pInName;
		}
		else {
		    strcat(szBuffer, pInName);
		    if (strlen(szBuffer) > MAX_PATH)
			szBuffer[MAX_PATH] = '\0';

		    DoGetFullPathNameA(szBuffer, sizeof(szLocalBufferA), szLocalBufferA);
		}
	    }
	}
    }

    return szLocalBufferA;
}

int VDir::SetCurrentDirectoryA(char *lpBuffer)
{
    char *pPtr;
    int length, nRet = -1;

    pPtr = MapPathA(lpBuffer);
    length = strlen(pPtr);
    if(length > 3 && IsPathSep(pPtr[length-1])) {
	/* don't remove the trailing slash from 'x:\'  */
	pPtr[length-1] = '\0';
    }

    DWORD r = GetFileAttributesA(pPtr);
    if ((r != 0xffffffff) && (r & FILE_ATTRIBUTE_DIRECTORY))
    {
	char szBuffer[(MAX_PATH+1)*2];
	DoGetFullPathNameA(pPtr, sizeof(szBuffer), szBuffer);
	SetDefaultDirA(szBuffer, DriveIndex(szBuffer[0]));
	nRet = 0;
    }

    return nRet;
}

DWORD VDir::CalculateEnvironmentSpace(void)
{   /* the current directory environment strings are stored as '=D:=d:\path' */
    int index;
    DWORD dwSize = 0;
    for (index = 0; index < driveCount; ++index) {
	if (dirTableA[index] != NULL) {
	    dwSize += strlen(dirTableA[index]) + 5;  /* add 1 for trailing NULL and 4 for '=D:=' */
	}
    }
    return dwSize;
}

LPSTR VDir::BuildEnvironmentSpace(LPSTR lpStr)
{   /* store the current directory environment strings as '=D:=d:\path' */
    int index, length;
    LPSTR lpDirStr;
    for (index = 0; index < driveCount; ++index) {
	lpDirStr = dirTableA[index];
	if (lpDirStr != NULL) {
	    lpStr[0] = '=';
	    lpStr[1] = lpDirStr[0];
	    lpStr[2] = '\0';
	    CharUpper(&lpStr[1]);
	    lpStr[2] = ':';
	    lpStr[3] = '=';
	    strcpy(&lpStr[4], lpDirStr);
	    length = strlen(lpDirStr);
	    lpStr += length + 5; /* add 1 for trailing NULL and 4 for '=D:=' */
	    if (length > 3 && IsPathSep(lpStr[-2])) {
		lpStr[-2] = '\0';   /* remove the trailing path separator */
		--lpStr;
	    }
	}
    }
    return lpStr;
}

inline BOOL IsPathSep(WCHAR ch)
{
    return (ch == '\\' || ch == '/');
}

inline void DoGetFullPathNameW(WCHAR* lpBuffer, DWORD dwSize, WCHAR* Dest)
{
    WCHAR *pPtr;

    /*
     * On WinNT GetFullPathName does not fail, (or at least always
     * succeeds when the drive is valid) WinNT does set *Dest to NULL
     * On Win98 GetFullPathName will set last error if it fails, but
     * does not touch *Dest
     */
    *Dest = '\0';
    GetFullPathNameW(lpBuffer, dwSize, Dest, &pPtr);
}

inline bool IsSpecialFileName(const WCHAR* pName)
{
    /* specical file names are devices that the system can open
     * these include AUX, CON, NUL, PRN, COMx, LPTx, CLOCK$, CONIN$, CONOUT$
     * (x is a single digit, and names are case-insensitive)
     */
    WCHAR ch = (pName[0] & ~0x20);
    switch (ch)
    {
	case 'A': /* AUX */
	    if (((pName[1] & ~0x20) == 'U')
		&& ((pName[2] & ~0x20) == 'X')
		&& !pName[3])
		    return true;
	    break;
	case 'C': /* CLOCK$, COMx,  CON, CONIN$ CONOUT$ */
	    ch = (pName[1] & ~0x20);
	    switch (ch)
	    {
		case 'L': /* CLOCK$ */
		    if (((pName[2] & ~0x20) == 'O')
			&& ((pName[3] & ~0x20) == 'C')
			&& ((pName[4] & ~0x20) == 'K')
			&& (pName[5] == '$')
			&& !pName[6])
			    return true;
		    break;
		case 'O': /* COMx,  CON, CONIN$ CONOUT$ */
		    if ((pName[2] & ~0x20) == 'M') {
			if ((pName[3] >= '1') && (pName[3] <= '9')
			    && !pName[4])
			    return true;
		    }
		    else if ((pName[2] & ~0x20) == 'N') {
			if (!pName[3])
			    return true;
			else if ((pName[3] & ~0x20) == 'I') {
			    if (((pName[4] & ~0x20) == 'N')
				&& (pName[5] == '$')
				&& !pName[6])
			    return true;
			}
			else if ((pName[3] & ~0x20) == 'O') {
			    if (((pName[4] & ~0x20) == 'U')
				&& ((pName[5] & ~0x20) == 'T')
				&& (pName[6] == '$')
				&& !pName[7])
			    return true;
			}
		    }
		    break;
	    }
	    break;
	case 'L': /* LPTx */
	    if (((pName[1] & ~0x20) == 'U')
		&& ((pName[2] & ~0x20) == 'X')
		&& (pName[3] >= '1') && (pName[3] <= '9')
		&& !pName[4])
		    return true;
	    break;
	case 'N': /* NUL */
	    if (((pName[1] & ~0x20) == 'U')
		&& ((pName[2] & ~0x20) == 'L')
		&& !pName[3])
		    return true;
	    break;
	case 'P': /* PRN */
	    if (((pName[1] & ~0x20) == 'R')
		&& ((pName[2] & ~0x20) == 'N')
		&& !pName[3])
		    return true;
	    break;
    }
    return false;
}

WCHAR* VDir::MapPathW(const WCHAR *pInName)
{   /*
     * possiblities -- relative path or absolute path with or without drive letter
     * OR UNC name
     */
    WCHAR szBuffer[(MAX_PATH+1)*2];
    WCHAR szlBuf[MAX_PATH+1];
    int length = wcslen(pInName);

    if (!length)
	return (WCHAR*)pInName;

    if (length > MAX_PATH) {
	wcsncpy(szlBuf, pInName, MAX_PATH);
	if (IsPathSep(pInName[0]) && !IsPathSep(pInName[1])) {   
	    /* absolute path - reduce length by 2 for drive specifier */
	    szlBuf[MAX_PATH-2] = '\0';
	}
	else
	    szlBuf[MAX_PATH] = '\0';
	pInName = szlBuf;
    }
    /* strlen(pInName) is now <= MAX_PATH */

    if (pInName[1] == ':') {
	/* has drive letter */
	if (IsPathSep(pInName[2])) {
	    /* absolute with drive letter */
	    DoGetFullPathNameW((WCHAR*)pInName, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW);
	}
	else {
	    /* relative path with drive letter */
	    wcscpy(szBuffer, GetDirW(DriveIndex((char)*pInName)));
	    wcscat(szBuffer, &pInName[2]);
	    if(wcslen(szBuffer) > MAX_PATH)
		szBuffer[MAX_PATH] = '\0';

	    DoGetFullPathNameW(szBuffer, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW);
	}
    }
    else {
	/* no drive letter */
	if (IsPathSep(pInName[1]) && IsPathSep(pInName[0])) {
	    /* UNC name */
	    DoGetFullPathNameW((WCHAR*)pInName, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW);
	}
	else {
	    wcscpy(szBuffer, GetDefaultDirW());
	    if (IsPathSep(pInName[0])) {
		/* absolute path */
		wcscpy(&szBuffer[2], pInName);
		DoGetFullPathNameW(szBuffer, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW);
	    }
	    else {
		/* relative path */
		if (IsSpecialFileName(pInName)) {
		    return (WCHAR*)pInName;
		}
		else {
		    wcscat(szBuffer, pInName);
		    if (wcslen(szBuffer) > MAX_PATH)
			szBuffer[MAX_PATH] = '\0';

		    DoGetFullPathNameW(szBuffer, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW);
		}
	    }
	}
    }
    return szLocalBufferW;
}

int VDir::SetCurrentDirectoryW(WCHAR *lpBuffer)
{
    WCHAR *pPtr;
    int length, nRet = -1;

    pPtr = MapPathW(lpBuffer);
    length = wcslen(pPtr);
    if(length > 3 && IsPathSep(pPtr[length-1])) {
	/* don't remove the trailing slash from 'x:\'  */
	pPtr[length-1] = '\0';
    }

    DWORD r = GetFileAttributesW(pPtr);
    if ((r != 0xffffffff) && (r & FILE_ATTRIBUTE_DIRECTORY))
    {
	WCHAR wBuffer[(MAX_PATH+1)*2];
	DoGetFullPathNameW(pPtr, (sizeof(wBuffer)/sizeof(WCHAR)), wBuffer);
	SetDefaultDirW(wBuffer, DriveIndex((char)wBuffer[0]));
	nRet = 0;
    }

    return nRet;
}

#endif	/* ___VDir_H___ */
Commit	Line	Data
7766f137 GS	1	/* vdir.h
	2	*
	3	* (c) 1999 Microsoft Corporation. All rights reserved.
	4	* Portions (c) 1999 ActiveState Tool Corp, http://www.ActiveState.com/
	5	*
	6	* You may distribute under the terms of either the GNU General Public
	7	* License or the Artistic License, as specified in the README file.
	8	*/
	9
	10	#ifndef ___VDir_H___
	11	#define ___VDir_H___
	12
93153446 GS	13	/*
	14	* Allow one slot for each possible drive letter
	15	* and one additional slot for a UNC name
	16	*/
	17	const int driveCount = ('Z'-'A')+1+1;
7766f137 GS	18
	19	class VDir
	20	{
	21	public:
f7aeb604	22	VDir(int bManageDir = 1);
7766f137 GS	23	~VDir() {};
	24
	25	void Init(VDir* pDir, VMem *pMem);
	26	void SetDefaultA(char const *pDefault);
	27	void SetDefaultW(WCHAR const *pDefault);
	28	char* MapPathA(const char *pInName);
	29	WCHAR* MapPathW(const WCHAR *pInName);
	30	int SetCurrentDirectoryA(char *lpBuffer);
	31	int SetCurrentDirectoryW(WCHAR *lpBuffer);
7766f137 GS	32	inline int GetDefault(void) { return nDefault; };
	33
	34	inline char* GetCurrentDirectoryA(int dwBufSize, char *lpBuffer)
	35	{
	36	char* ptr = dirTableA[nDefault];
d684b162	37	while (--dwBufSize)
7766f137 GS	38	{
	39	if ((lpBuffer++ = ptr++) == '\0')
	40	break;
	41	}
d684b162 JD	42	*lpBuffer = '\0';
d684b162 JD	43	return /* unused */ NULL;
7766f137 GS	44	};
	45	inline WCHAR* GetCurrentDirectoryW(int dwBufSize, WCHAR *lpBuffer)
	46	{
	47	WCHAR* ptr = dirTableW[nDefault];
d684b162	48	while (--dwBufSize)
7766f137 GS	49	{
	50	if ((lpBuffer++ = ptr++) == '\0')
	51	break;
	52	}
d684b162 JD	53	*lpBuffer = '\0';
d684b162 JD	54	return /* unused */ NULL;
7766f137 GS	55	};
7766f137 GS	56
7766f137 GS	57	DWORD CalculateEnvironmentSpace(void);
	58	LPSTR BuildEnvironmentSpace(LPSTR lpStr);
	59
	60	protected:
	61	int SetDirA(char const *pPath, int index);
d684b162	62	int SetDirW(WCHAR const *pPath, int index);
7766f137	63	void FromEnvA(char *pEnv, int index);
d684b162 JD	64	void FromEnvW(WCHAR *pEnv, int index);
d684b162 JD	65
7766f137 GS	66	inline const char *GetDefaultDirA(void)
	67	{
	68	return dirTableA[nDefault];
	69	};
7766f137 GS	70	inline void SetDefaultDirA(char const *pPath, int index)
	71	{
	72	SetDirA(pPath, index);
	73	nDefault = index;
	74	};
7766f137 GS	75	inline const WCHAR *GetDefaultDirW(void)
	76	{
	77	return dirTableW[nDefault];
	78	};
7766f137 GS	79	inline void SetDefaultDirW(WCHAR const *pPath, int index)
	80	{
	81	SetDirW(pPath, index);
	82	nDefault = index;
	83	};
e2694c95 GS	84	inline const char *GetDirA(int index)
	85	{
	86	char *ptr = dirTableA[index];
	87	if (!ptr) {
	88	/* simulate the existance of this drive */
	89	ptr = szLocalBufferA;
	90	ptr[0] = 'A' + index;
	91	ptr[1] = ':';
	92	ptr[2] = '\\';
	93	ptr[3] = 0;
	94	}
	95	return ptr;
	96	};
	97	inline const WCHAR *GetDirW(int index)
	98	{
	99	WCHAR *ptr = dirTableW[index];
	100	if (!ptr) {
	101	/* simulate the existance of this drive */
	102	ptr = szLocalBufferW;
	103	ptr[0] = 'A' + index;
	104	ptr[1] = ':';
	105	ptr[2] = '\\';
	106	ptr[3] = 0;
	107	}
	108	return ptr;
	109	};
7766f137 GS	110
	111	inline int DriveIndex(char chr)
	112	{
93153446 GS	113	if (chr == '\\' \|\| chr == '/')
93153446 GS	114	return ('Z'-'A')+1;
7766f137 GS	115	return (chr \| 0x20)-'a';
	116	};
	117
	118	VMem *pMem;
f7aeb604	119	int nDefault, bManageDirectory;
7766f137 GS	120	char *dirTableA[driveCount];
	121	char szLocalBufferA[MAX_PATH+1];
	122	WCHAR *dirTableW[driveCount];
	123	WCHAR szLocalBufferW[MAX_PATH+1];
	124	};
	125
	126
f7aeb604	127	VDir::VDir(int bManageDir /* = 1 */)
7766f137 GS	128	{
7766f137 GS	129	nDefault = 0;
f7aeb604	130	bManageDirectory = bManageDir;
7766f137 GS	131	memset(dirTableA, 0, sizeof(dirTableA));
	132	memset(dirTableW, 0, sizeof(dirTableW));
	133	}
	134
	135	void VDir::Init(VDir* pDir, VMem *p)
	136	{
	137	int index;
7766f137 GS	138
	139	pMem = p;
	140	if (pDir) {
	141	for (index = 0; index < driveCount; ++index) {
	142	SetDirW(pDir->GetDirW(index), index);
	143	}
	144	nDefault = pDir->GetDefault();
	145	}
	146	else {
d684b162 JD	147	int bSave = bManageDirectory;
d684b162 JD	148	DWORD driveBits = GetLogicalDrives();
d684b162	149
f7aeb604	150	bManageDirectory = 0;
0e7b7035 SH	151	WCHAR szBuffer[MAX_PATH*driveCount];
	152	if (GetLogicalDriveStringsW(sizeof(szBuffer), szBuffer)) {
	153	WCHAR* pEnv = GetEnvironmentStringsW();
	154	WCHAR* ptr = szBuffer;
	155	for (index = 0; index < driveCount; ++index) {
	156	if (driveBits & (1<<index)) {
	157	ptr += SetDirW(ptr, index) + 1;
	158	FromEnvW(pEnv, index);
d684b162	159	}
d684b162	160	}
0e7b7035	161	FreeEnvironmentStringsW(pEnv);
d684b162	162	}
0e7b7035	163	SetDefaultW(L".");
d684b162 JD	164	bManageDirectory = bSave;
d684b162 JD	165	}
7766f137 GS	166	}
	167
	168	int VDir::SetDirA(char const *pPath, int index)
	169	{
	170	char chr, *ptr;
	171	int length = 0;
	172	WCHAR wBuffer[MAX_PATH+1];
	173	if (index < driveCount && pPath != NULL) {
	174	length = strlen(pPath);
	175	pMem->Free(dirTableA[index]);
	176	ptr = dirTableA[index] = (char*)pMem->Malloc(length+2);
	177	if (ptr != NULL) {
	178	strcpy(ptr, pPath);
	179	ptr += length-1;
	180	chr = *ptr++;
	181	if (chr != '\\' && chr != '/') {
	182	*ptr++ = '\\';
	183	*ptr = '\0';
	184	}
	185	MultiByteToWideChar(CP_ACP, 0, dirTableA[index], -1,
	186	wBuffer, (sizeof(wBuffer)/sizeof(WCHAR)));
	187	length = wcslen(wBuffer);
	188	pMem->Free(dirTableW[index]);
	189	dirTableW[index] = (WCHAR)pMem->Malloc((length+1)2);
	190	if (dirTableW[index] != NULL) {
	191	wcscpy(dirTableW[index], wBuffer);
	192	}
	193	}
	194	}
f7aeb604 GS	195
	196	if(bManageDirectory)
	197	::SetCurrentDirectoryA(pPath);
	198
7766f137 GS	199	return length;
	200	}
	201
	202	void VDir::FromEnvA(char *pEnv, int index)
	203	{ /* gets the directory for index from the environment variable. */
	204	while (*pEnv != '\0') {
	205	if ((pEnv[0] == '=') && (DriveIndex(pEnv[1]) == index)) {
	206	SetDirA(&pEnv[4], index);
	207	break;
	208	}
	209	else
	210	pEnv += strlen(pEnv)+1;
	211	}
	212	}
	213
d684b162 JD	214	void VDir::FromEnvW(WCHAR *pEnv, int index)
	215	{ /* gets the directory for index from the environment variable. */
	216	while (*pEnv != '\0') {
	217	if ((pEnv[0] == '=') && (DriveIndex((char)pEnv[1]) == index)) {
	218	SetDirW(&pEnv[4], index);
	219	break;
	220	}
	221	else
	222	pEnv += wcslen(pEnv)+1;
	223	}
	224	}
	225
7766f137 GS	226	void VDir::SetDefaultA(char const *pDefault)
	227	{
	228	char szBuffer[MAX_PATH+1];
	229	char *pPtr;
	230
	231	if (GetFullPathNameA(pDefault, sizeof(szBuffer), szBuffer, &pPtr)) {
	232	if (*pDefault != '.' && pPtr != NULL)
	233	*pPtr = '\0';
	234
	235	SetDefaultDirA(szBuffer, DriveIndex(szBuffer[0]));
	236	}
	237	}
	238
	239	int VDir::SetDirW(WCHAR const *pPath, int index)
	240	{
	241	WCHAR chr, *ptr;
7766f137 GS	242	int length = 0;
	243	if (index < driveCount && pPath != NULL) {
	244	length = wcslen(pPath);
	245	pMem->Free(dirTableW[index]);
	246	ptr = dirTableW[index] = (WCHAR)pMem->Malloc((length+2)2);
	247	if (ptr != NULL) {
aa2b96ec	248	char *ansi;
7766f137 GS	249	wcscpy(ptr, pPath);
	250	ptr += length-1;
	251	chr = *ptr++;
	252	if (chr != '\\' && chr != '/') {
	253	*ptr++ = '\\';
	254	*ptr = '\0';
	255	}
aa2b96ec JD	256	ansi = win32_ansipath(dirTableW[index]);
aa2b96ec JD	257	length = strlen(ansi);
7766f137 GS	258	pMem->Free(dirTableA[index]);
	259	dirTableA[index] = (char*)pMem->Malloc(length+1);
	260	if (dirTableA[index] != NULL) {
aa2b96ec	261	strcpy(dirTableA[index], ansi);
7766f137	262	}
aa2b96ec	263	win32_free(ansi);
7766f137 GS	264	}
7766f137 GS	265	}
f7aeb604 GS	266
	267	if(bManageDirectory)
	268	::SetCurrentDirectoryW(pPath);
	269
7766f137 GS	270	return length;
	271	}
	272
	273	void VDir::SetDefaultW(WCHAR const *pDefault)
	274	{
	275	WCHAR szBuffer[MAX_PATH+1];
	276	WCHAR *pPtr;
	277
	278	if (GetFullPathNameW(pDefault, (sizeof(szBuffer)/sizeof(WCHAR)), szBuffer, &pPtr)) {
	279	if (*pDefault != '.' && pPtr != NULL)
	280	*pPtr = '\0';
	281
	282	SetDefaultDirW(szBuffer, DriveIndex((char)szBuffer[0]));
	283	}
	284	}
	285
	286	inline BOOL IsPathSep(char ch)
	287	{
	288	return (ch == '\\' \|\| ch == '/');
	289	}
	290
	291	inline void DoGetFullPathNameA(char* lpBuffer, DWORD dwSize, char* Dest)
	292	{
	293	char *pPtr;
	294
	295	/*
	296	* On WinNT GetFullPathName does not fail, (or at least always
9849c14c	297	* succeeds when the drive is valid) WinNT does set *Dest to NULL
7766f137 GS	298	* On Win98 GetFullPathName will set last error if it fails, but
	299	* does not touch *Dest
	300	*/
	301	*Dest = '\0';
	302	GetFullPathNameA(lpBuffer, dwSize, Dest, &pPtr);
	303	}
	304
e2694c95 GS	305	inline bool IsSpecialFileName(const char* pName)
	306	{
	307	/* specical file names are devices that the system can open
	308	* these include AUX, CON, NUL, PRN, COMx, LPTx, CLOCK$, CONIN$, CONOUT$
	309	* (x is a single digit, and names are case-insensitive)
	310	*/
	311	char ch = (pName[0] & ~0x20);
	312	switch (ch)
	313	{
	314	case 'A': /* AUX */
	315	if (((pName[1] & ~0x20) == 'U')
	316	&& ((pName[2] & ~0x20) == 'X')
	317	&& !pName[3])
	318	return true;
	319	break;
	320	case 'C': /* CLOCK$, COMx, CON, CONIN$ CONOUT$ */
	321	ch = (pName[1] & ~0x20);
	322	switch (ch)
	323	{
	324	case 'L': /* CLOCK$ */
	325	if (((pName[2] & ~0x20) == 'O')
	326	&& ((pName[3] & ~0x20) == 'C')
	327	&& ((pName[4] & ~0x20) == 'K')
	328	&& (pName[5] == '$')
	329	&& !pName[6])
	330	return true;
	331	break;
	332	case 'O': /* COMx, CON, CONIN$ CONOUT$ */
	333	if ((pName[2] & ~0x20) == 'M') {
	334	if ((pName[3] >= '1') && (pName[3] <= '9')
	335	&& !pName[4])
	336	return true;
	337	}
	338	else if ((pName[2] & ~0x20) == 'N') {
	339	if (!pName[3])
	340	return true;
	341	else if ((pName[3] & ~0x20) == 'I') {
	342	if (((pName[4] & ~0x20) == 'N')
	343	&& (pName[5] == '$')
	344	&& !pName[6])
	345	return true;
	346	}
	347	else if ((pName[3] & ~0x20) == 'O') {
	348	if (((pName[4] & ~0x20) == 'U')
	349	&& ((pName[5] & ~0x20) == 'T')
	350	&& (pName[6] == '$')
	351	&& !pName[7])
	352	return true;
	353	}
	354	}
	355	break;
	356	}
	357	break;
	358	case 'L': /* LPTx */
	359	if (((pName[1] & ~0x20) == 'U')
	360	&& ((pName[2] & ~0x20) == 'X')
	361	&& (pName[3] >= '1') && (pName[3] <= '9')
	362	&& !pName[4])
	363	return true;
	364	break;
	365	case 'N': /* NUL */
	366	if (((pName[1] & ~0x20) == 'U')
	367	&& ((pName[2] & ~0x20) == 'L')
	368	&& !pName[3])
369	return true;
370	break;
371	case 'P': /* PRN */
372	if (((pName[1] & ~0x20) == 'R')
373	&& ((pName[2] & ~0x20) == 'N')
374	&& !pName[3])
375	return true;
376	break;
377	}
378	return false;
379	}
380
7766f137 GS	381	char VDir::MapPathA(const char pInName)
	382	{ /*
	383	* possiblities -- relative path or absolute path with or without drive letter
	384	* OR UNC name
	385	*/
	386	char szBuffer[(MAX_PATH+1)*2];
	387	char szlBuf[MAX_PATH+1];
93153446 GS	388	int length = strlen(pInName);
	389
	390	if (!length)
	391	return (char*)pInName;
7766f137	392
93153446	393	if (length > MAX_PATH) {
7766f137 GS	394	strncpy(szlBuf, pInName, MAX_PATH);
	395	if (IsPathSep(pInName[0]) && !IsPathSep(pInName[1])) {
	396	/* absolute path - reduce length by 2 for drive specifier */
	397	szlBuf[MAX_PATH-2] = '\0';
	398	}
	399	else
	400	szlBuf[MAX_PATH] = '\0';
	401	pInName = szlBuf;
	402	}
	403	/* strlen(pInName) is now <= MAX_PATH */
	404
	405	if (pInName[1] == ':') {
	406	/* has drive letter */
	407	if (IsPathSep(pInName[2])) {
	408	/* absolute with drive letter */
98b36f88	409	DoGetFullPathNameA((char*)pInName, sizeof(szLocalBufferA), szLocalBufferA);
7766f137 GS	410	}
	411	else {
	412	/* relative path with drive letter */
	413	strcpy(szBuffer, GetDirA(DriveIndex(*pInName)));
	414	strcat(szBuffer, &pInName[2]);
	415	if(strlen(szBuffer) > MAX_PATH)
	416	szBuffer[MAX_PATH] = '\0';
	417
	418	DoGetFullPathNameA(szBuffer, sizeof(szLocalBufferA), szLocalBufferA);
	419	}
	420	}
	421	else {
	422	/* no drive letter */
	423	if (IsPathSep(pInName[1]) && IsPathSep(pInName[0])) {
	424	/* UNC name */
98b36f88	425	DoGetFullPathNameA((char*)pInName, sizeof(szLocalBufferA), szLocalBufferA);
7766f137 GS	426	}
	427	else {
	428	strcpy(szBuffer, GetDefaultDirA());
	429	if (IsPathSep(pInName[0])) {
	430	/* absolute path */
98b36f88 GS	431	strcpy(&szBuffer[2], pInName);
98b36f88 GS	432	DoGetFullPathNameA(szBuffer, sizeof(szLocalBufferA), szLocalBufferA);
7766f137 GS	433	}
	434	else {
	435	/* relative path */
e2694c95 GS	436	if (IsSpecialFileName(pInName)) {
	437	return (char*)pInName;
	438	}
	439	else {
	440	strcat(szBuffer, pInName);
	441	if (strlen(szBuffer) > MAX_PATH)
	442	szBuffer[MAX_PATH] = '\0';
7766f137	443
e2694c95 GS	444	DoGetFullPathNameA(szBuffer, sizeof(szLocalBufferA), szLocalBufferA);
e2694c95 GS	445	}
7766f137 GS	446	}
	447	}
	448	}
	449
	450	return szLocalBufferA;
	451	}
	452
	453	int VDir::SetCurrentDirectoryA(char *lpBuffer)
	454	{
93153446	455	char *pPtr;
fd9459bc	456	int length, nRet = -1;
7766f137	457
93153446 GS	458	pPtr = MapPathA(lpBuffer);
	459	length = strlen(pPtr);
	460	if(length > 3 && IsPathSep(pPtr[length-1])) {
	461	/* don't remove the trailing slash from 'x:\' */
	462	pPtr[length-1] = '\0';
fd9459bc	463	}
7766f137	464
93153446 GS	465	DWORD r = GetFileAttributesA(pPtr);
	466	if ((r != 0xffffffff) && (r & FILE_ATTRIBUTE_DIRECTORY))
	467	{
2eb25c99 JH	468	char szBuffer[(MAX_PATH+1)*2];
	469	DoGetFullPathNameA(pPtr, sizeof(szBuffer), szBuffer);
	470	SetDefaultDirA(szBuffer, DriveIndex(szBuffer[0]));
7766f137 GS	471	nRet = 0;
7766f137 GS	472	}
93153446	473
7766f137 GS	474	return nRet;
	475	}
	476
	477	DWORD VDir::CalculateEnvironmentSpace(void)
9afd7f94	478	{ /* the current directory environment strings are stored as '=D:=d:\path' */
7766f137 GS	479	int index;
	480	DWORD dwSize = 0;
	481	for (index = 0; index < driveCount; ++index) {
	482	if (dirTableA[index] != NULL) {
9afd7f94	483	dwSize += strlen(dirTableA[index]) + 5; /* add 1 for trailing NULL and 4 for '=D:=' */
7766f137 GS	484	}
	485	}
	486	return dwSize;
	487	}
	488
	489	LPSTR VDir::BuildEnvironmentSpace(LPSTR lpStr)
9afd7f94 GS	490	{ /* store the current directory environment strings as '=D:=d:\path' */
9afd7f94 GS	491	int index, length;
7766f137 GS	492	LPSTR lpDirStr;
	493	for (index = 0; index < driveCount; ++index) {
	494	lpDirStr = dirTableA[index];
	495	if (lpDirStr != NULL) {
	496	lpStr[0] = '=';
	497	lpStr[1] = lpDirStr[0];
9afd7f94 GS	498	lpStr[2] = '\0';
	499	CharUpper(&lpStr[1]);
	500	lpStr[2] = ':';
	501	lpStr[3] = '=';
	502	strcpy(&lpStr[4], lpDirStr);
	503	length = strlen(lpDirStr);
	504	lpStr += length + 5; /* add 1 for trailing NULL and 4 for '=D:=' */
	505	if (length > 3 && IsPathSep(lpStr[-2])) {
	506	lpStr[-2] = '\0'; /* remove the trailing path separator */
	507	--lpStr;
	508	}
7766f137 GS	509	}
	510	}
	511	return lpStr;
	512	}
	513
	514	inline BOOL IsPathSep(WCHAR ch)
	515	{
	516	return (ch == '\\' \|\| ch == '/');
	517	}
	518
	519	inline void DoGetFullPathNameW(WCHAR* lpBuffer, DWORD dwSize, WCHAR* Dest)
	520	{
	521	WCHAR *pPtr;
	522
	523	/*
	524	* On WinNT GetFullPathName does not fail, (or at least always
9849c14c	525	* succeeds when the drive is valid) WinNT does set *Dest to NULL
7766f137 GS	526	* On Win98 GetFullPathName will set last error if it fails, but
	527	* does not touch *Dest
	528	*/
	529	*Dest = '\0';
	530	GetFullPathNameW(lpBuffer, dwSize, Dest, &pPtr);
	531	}
	532
e2694c95 GS	533	inline bool IsSpecialFileName(const WCHAR* pName)
	534	{
	535	/* specical file names are devices that the system can open
	536	* these include AUX, CON, NUL, PRN, COMx, LPTx, CLOCK$, CONIN$, CONOUT$
	537	* (x is a single digit, and names are case-insensitive)
	538	*/
	539	WCHAR ch = (pName[0] & ~0x20);
	540	switch (ch)
	541	{
	542	case 'A': /* AUX */
	543	if (((pName[1] & ~0x20) == 'U')
	544	&& ((pName[2] & ~0x20) == 'X')
	545	&& !pName[3])
	546	return true;
	547	break;
	548	case 'C': /* CLOCK$, COMx, CON, CONIN$ CONOUT$ */
	549	ch = (pName[1] & ~0x20);
	550	switch (ch)
	551	{
	552	case 'L': /* CLOCK$ */
	553	if (((pName[2] & ~0x20) == 'O')
	554	&& ((pName[3] & ~0x20) == 'C')
	555	&& ((pName[4] & ~0x20) == 'K')
	556	&& (pName[5] == '$')
	557	&& !pName[6])
	558	return true;
	559	break;
	560	case 'O': /* COMx, CON, CONIN$ CONOUT$ */
	561	if ((pName[2] & ~0x20) == 'M') {
	562	if ((pName[3] >= '1') && (pName[3] <= '9')
	563	&& !pName[4])
	564	return true;
	565	}
	566	else if ((pName[2] & ~0x20) == 'N') {
	567	if (!pName[3])
	568	return true;
	569	else if ((pName[3] & ~0x20) == 'I') {
	570	if (((pName[4] & ~0x20) == 'N')
	571	&& (pName[5] == '$')
	572	&& !pName[6])
	573	return true;
	574	}
	575	else if ((pName[3] & ~0x20) == 'O') {
	576	if (((pName[4] & ~0x20) == 'U')
	577	&& ((pName[5] & ~0x20) == 'T')
	578	&& (pName[6] == '$')
	579	&& !pName[7])
	580	return true;
	581	}
	582	}
	583	break;
	584	}
	585	break;
	586	case 'L': /* LPTx */
	587	if (((pName[1] & ~0x20) == 'U')
	588	&& ((pName[2] & ~0x20) == 'X')
	589	&& (pName[3] >= '1') && (pName[3] <= '9')
	590	&& !pName[4])
	591	return true;
	592	break;
	593	case 'N': /* NUL */
	594	if (((pName[1] & ~0x20) == 'U')
	595	&& ((pName[2] & ~0x20) == 'L')
	596	&& !pName[3])
597	return true;
598	break;
599	case 'P': /* PRN */
600	if (((pName[1] & ~0x20) == 'R')
601	&& ((pName[2] & ~0x20) == 'N')
602	&& !pName[3])
603	return true;
604	break;
605	}
606	return false;
607	}
608
7766f137 GS	609	WCHAR* VDir::MapPathW(const WCHAR *pInName)
	610	{ /*
	611	* possiblities -- relative path or absolute path with or without drive letter
	612	* OR UNC name
	613	*/
	614	WCHAR szBuffer[(MAX_PATH+1)*2];
	615	WCHAR szlBuf[MAX_PATH+1];
93153446	616	int length = wcslen(pInName);
7766f137	617
93153446 GS	618	if (!length)
	619	return (WCHAR*)pInName;
	620
	621	if (length > MAX_PATH) {
7766f137 GS	622	wcsncpy(szlBuf, pInName, MAX_PATH);
	623	if (IsPathSep(pInName[0]) && !IsPathSep(pInName[1])) {
	624	/* absolute path - reduce length by 2 for drive specifier */
	625	szlBuf[MAX_PATH-2] = '\0';
	626	}
	627	else
	628	szlBuf[MAX_PATH] = '\0';
	629	pInName = szlBuf;
	630	}
	631	/* strlen(pInName) is now <= MAX_PATH */
	632
	633	if (pInName[1] == ':') {
	634	/* has drive letter */
	635	if (IsPathSep(pInName[2])) {
	636	/* absolute with drive letter */
98b36f88	637	DoGetFullPathNameW((WCHAR*)pInName, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW);
7766f137 GS	638	}
	639	else {
	640	/* relative path with drive letter */
	641	wcscpy(szBuffer, GetDirW(DriveIndex((char)*pInName)));
	642	wcscat(szBuffer, &pInName[2]);
	643	if(wcslen(szBuffer) > MAX_PATH)
	644	szBuffer[MAX_PATH] = '\0';
	645
	646	DoGetFullPathNameW(szBuffer, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW);
	647	}
	648	}
	649	else {
	650	/* no drive letter */
	651	if (IsPathSep(pInName[1]) && IsPathSep(pInName[0])) {
	652	/* UNC name */
98b36f88	653	DoGetFullPathNameW((WCHAR*)pInName, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW);
7766f137 GS	654	}
	655	else {
	656	wcscpy(szBuffer, GetDefaultDirW());
	657	if (IsPathSep(pInName[0])) {
	658	/* absolute path */
98b36f88 GS	659	wcscpy(&szBuffer[2], pInName);
98b36f88 GS	660	DoGetFullPathNameW(szBuffer, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW);
7766f137 GS	661	}
	662	else {
	663	/* relative path */
e2694c95 GS	664	if (IsSpecialFileName(pInName)) {
	665	return (WCHAR*)pInName;
	666	}
	667	else {
	668	wcscat(szBuffer, pInName);
	669	if (wcslen(szBuffer) > MAX_PATH)
	670	szBuffer[MAX_PATH] = '\0';
7766f137	671
e2694c95 GS	672	DoGetFullPathNameW(szBuffer, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW);
e2694c95 GS	673	}
7766f137 GS	674	}
	675	}
	676	}
	677	return szLocalBufferW;
	678	}
	679
fd9459bc GS	680	int VDir::SetCurrentDirectoryW(WCHAR *lpBuffer)
fd9459bc GS	681	{
93153446	682	WCHAR *pPtr;
fd9459bc GS	683	int length, nRet = -1;
fd9459bc GS	684
93153446 GS	685	pPtr = MapPathW(lpBuffer);
	686	length = wcslen(pPtr);
	687	if(length > 3 && IsPathSep(pPtr[length-1])) {
	688	/* don't remove the trailing slash from 'x:\' */
	689	pPtr[length-1] = '\0';
fd9459bc GS	690	}
fd9459bc GS	691
93153446 GS	692	DWORD r = GetFileAttributesW(pPtr);
	693	if ((r != 0xffffffff) && (r & FILE_ATTRIBUTE_DIRECTORY))
	694	{
2eb25c99 JH	695	WCHAR wBuffer[(MAX_PATH+1)*2];
	696	DoGetFullPathNameW(pPtr, (sizeof(wBuffer)/sizeof(WCHAR)), wBuffer);
	697	SetDefaultDirW(wBuffer, DriveIndex((char)wBuffer[0]));
fd9459bc GS	698	nRet = 0;
fd9459bc GS	699	}
93153446	700
fd9459bc GS	701	return nRet;
fd9459bc GS	702	}
7766f137 GS	703
7766f137 GS	704	#endif /* ___VDir_H___ */