[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;
const int driveLetterCount = ('Z'-'A')+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 existence 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 existence 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
     */
    int driveIndex;
    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 (length > 1 && pInName[1] == ':') {
	/* has drive letter */
	if (length > 2 && IsPathSep(pInName[2])) {
	    /* absolute with drive letter */
	    DoGetFullPathNameA((char*)pInName, sizeof(szLocalBufferA), szLocalBufferA);
	}
	else {
	    /* relative path with drive letter */
            driveIndex = DriveIndex(*pInName);
            if (driveIndex < 0 || driveIndex >= driveLetterCount)
                return (char *)pInName;
	    strcpy(szBuffer, GetDirA(driveIndex));
	    strcat(szBuffer, &pInName[2]);
	    if(strlen(szBuffer) > MAX_PATH)
		szBuffer[MAX_PATH] = '\0';

	    DoGetFullPathNameA(szBuffer, sizeof(szLocalBufferA), szLocalBufferA);
	}
    }
    else {
	/* no drive letter */
	if (length > 1 && 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
     */
    int driveIndex;
    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 (length > 1 && 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 */
            driveIndex = DriveIndex(*pInName);
            if (driveIndex < 0 || driveIndex >= driveLetterCount)
                return (WCHAR *)pInName;
	    wcscpy(szBuffer, GetDirW(driveIndex));
	    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 (length > 1 && 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;
52236464	18	const int driveLetterCount = ('Z'-'A')+1;
7766f137 GS	19
	20	class VDir
	21	{
	22	public:
f7aeb604	23	VDir(int bManageDir = 1);
7766f137 GS	24	~VDir() {};
	25
	26	void Init(VDir* pDir, VMem *pMem);
	27	void SetDefaultA(char const *pDefault);
	28	void SetDefaultW(WCHAR const *pDefault);
	29	char* MapPathA(const char *pInName);
	30	WCHAR* MapPathW(const WCHAR *pInName);
	31	int SetCurrentDirectoryA(char *lpBuffer);
	32	int SetCurrentDirectoryW(WCHAR *lpBuffer);
7766f137 GS	33	inline int GetDefault(void) { return nDefault; };
	34
	35	inline char* GetCurrentDirectoryA(int dwBufSize, char *lpBuffer)
	36	{
	37	char* ptr = dirTableA[nDefault];
d684b162	38	while (--dwBufSize)
7766f137 GS	39	{
	40	if ((lpBuffer++ = ptr++) == '\0')
	41	break;
	42	}
d684b162 JD	43	*lpBuffer = '\0';
d684b162 JD	44	return /* unused */ NULL;
7766f137 GS	45	};
	46	inline WCHAR* GetCurrentDirectoryW(int dwBufSize, WCHAR *lpBuffer)
	47	{
	48	WCHAR* ptr = dirTableW[nDefault];
d684b162	49	while (--dwBufSize)
7766f137 GS	50	{
	51	if ((lpBuffer++ = ptr++) == '\0')
	52	break;
	53	}
d684b162 JD	54	*lpBuffer = '\0';
d684b162 JD	55	return /* unused */ NULL;
7766f137 GS	56	};
7766f137 GS	57
7766f137 GS	58	DWORD CalculateEnvironmentSpace(void);
	59	LPSTR BuildEnvironmentSpace(LPSTR lpStr);
	60
	61	protected:
	62	int SetDirA(char const *pPath, int index);
d684b162	63	int SetDirW(WCHAR const *pPath, int index);
7766f137	64	void FromEnvA(char *pEnv, int index);
d684b162 JD	65	void FromEnvW(WCHAR *pEnv, int index);
d684b162 JD	66
7766f137 GS	67	inline const char *GetDefaultDirA(void)
	68	{
	69	return dirTableA[nDefault];
	70	};
7766f137 GS	71	inline void SetDefaultDirA(char const *pPath, int index)
	72	{
	73	SetDirA(pPath, index);
	74	nDefault = index;
	75	};
7766f137 GS	76	inline const WCHAR *GetDefaultDirW(void)
	77	{
	78	return dirTableW[nDefault];
	79	};
7766f137 GS	80	inline void SetDefaultDirW(WCHAR const *pPath, int index)
	81	{
	82	SetDirW(pPath, index);
	83	nDefault = index;
	84	};
e2694c95 GS	85	inline const char *GetDirA(int index)
	86	{
	87	char *ptr = dirTableA[index];
	88	if (!ptr) {
bb0f0a6a	89	/* simulate the existence of this drive */
e2694c95 GS	90	ptr = szLocalBufferA;
	91	ptr[0] = 'A' + index;
	92	ptr[1] = ':';
	93	ptr[2] = '\\';
	94	ptr[3] = 0;
	95	}
	96	return ptr;
	97	};
	98	inline const WCHAR *GetDirW(int index)
	99	{
	100	WCHAR *ptr = dirTableW[index];
	101	if (!ptr) {
bb0f0a6a	102	/* simulate the existence of this drive */
e2694c95 GS	103	ptr = szLocalBufferW;
	104	ptr[0] = 'A' + index;
	105	ptr[1] = ':';
	106	ptr[2] = '\\';
	107	ptr[3] = 0;
	108	}
	109	return ptr;
	110	};
7766f137 GS	111
	112	inline int DriveIndex(char chr)
	113	{
93153446 GS	114	if (chr == '\\' \|\| chr == '/')
93153446 GS	115	return ('Z'-'A')+1;
7766f137 GS	116	return (chr \| 0x20)-'a';
	117	};
	118
	119	VMem *pMem;
f7aeb604	120	int nDefault, bManageDirectory;
7766f137 GS	121	char *dirTableA[driveCount];
	122	char szLocalBufferA[MAX_PATH+1];
	123	WCHAR *dirTableW[driveCount];
	124	WCHAR szLocalBufferW[MAX_PATH+1];
	125	};
	126
	127
f7aeb604	128	VDir::VDir(int bManageDir /* = 1 */)
7766f137 GS	129	{
7766f137 GS	130	nDefault = 0;
f7aeb604	131	bManageDirectory = bManageDir;
7766f137 GS	132	memset(dirTableA, 0, sizeof(dirTableA));
	133	memset(dirTableW, 0, sizeof(dirTableW));
	134	}
	135
	136	void VDir::Init(VDir* pDir, VMem *p)
	137	{
	138	int index;
7766f137 GS	139
	140	pMem = p;
	141	if (pDir) {
	142	for (index = 0; index < driveCount; ++index) {
	143	SetDirW(pDir->GetDirW(index), index);
	144	}
	145	nDefault = pDir->GetDefault();
	146	}
	147	else {
d684b162 JD	148	int bSave = bManageDirectory;
d684b162 JD	149	DWORD driveBits = GetLogicalDrives();
d684b162	150
f7aeb604	151	bManageDirectory = 0;
0e7b7035 SH	152	WCHAR szBuffer[MAX_PATH*driveCount];
	153	if (GetLogicalDriveStringsW(sizeof(szBuffer), szBuffer)) {
	154	WCHAR* pEnv = GetEnvironmentStringsW();
	155	WCHAR* ptr = szBuffer;
	156	for (index = 0; index < driveCount; ++index) {
	157	if (driveBits & (1<<index)) {
	158	ptr += SetDirW(ptr, index) + 1;
	159	FromEnvW(pEnv, index);
d684b162	160	}
d684b162	161	}
0e7b7035	162	FreeEnvironmentStringsW(pEnv);
d684b162	163	}
0e7b7035	164	SetDefaultW(L".");
d684b162 JD	165	bManageDirectory = bSave;
d684b162 JD	166	}
7766f137 GS	167	}
	168
	169	int VDir::SetDirA(char const *pPath, int index)
	170	{
	171	char chr, *ptr;
	172	int length = 0;
	173	WCHAR wBuffer[MAX_PATH+1];
	174	if (index < driveCount && pPath != NULL) {
	175	length = strlen(pPath);
	176	pMem->Free(dirTableA[index]);
	177	ptr = dirTableA[index] = (char*)pMem->Malloc(length+2);
	178	if (ptr != NULL) {
	179	strcpy(ptr, pPath);
	180	ptr += length-1;
	181	chr = *ptr++;
	182	if (chr != '\\' && chr != '/') {
	183	*ptr++ = '\\';
	184	*ptr = '\0';
	185	}
	186	MultiByteToWideChar(CP_ACP, 0, dirTableA[index], -1,
	187	wBuffer, (sizeof(wBuffer)/sizeof(WCHAR)));
	188	length = wcslen(wBuffer);
	189	pMem->Free(dirTableW[index]);
	190	dirTableW[index] = (WCHAR)pMem->Malloc((length+1)2);
	191	if (dirTableW[index] != NULL) {
	192	wcscpy(dirTableW[index], wBuffer);
	193	}
	194	}
	195	}
f7aeb604 GS	196
	197	if(bManageDirectory)
	198	::SetCurrentDirectoryA(pPath);
	199
7766f137 GS	200	return length;
	201	}
	202
	203	void VDir::FromEnvA(char *pEnv, int index)
	204	{ /* gets the directory for index from the environment variable. */
	205	while (*pEnv != '\0') {
	206	if ((pEnv[0] == '=') && (DriveIndex(pEnv[1]) == index)) {
	207	SetDirA(&pEnv[4], index);
	208	break;
	209	}
	210	else
	211	pEnv += strlen(pEnv)+1;
	212	}
	213	}
	214
d684b162 JD	215	void VDir::FromEnvW(WCHAR *pEnv, int index)
	216	{ /* gets the directory for index from the environment variable. */
	217	while (*pEnv != '\0') {
	218	if ((pEnv[0] == '=') && (DriveIndex((char)pEnv[1]) == index)) {
	219	SetDirW(&pEnv[4], index);
	220	break;
	221	}
	222	else
	223	pEnv += wcslen(pEnv)+1;
	224	}
	225	}
	226
7766f137 GS	227	void VDir::SetDefaultA(char const *pDefault)
	228	{
	229	char szBuffer[MAX_PATH+1];
	230	char *pPtr;
	231
	232	if (GetFullPathNameA(pDefault, sizeof(szBuffer), szBuffer, &pPtr)) {
	233	if (*pDefault != '.' && pPtr != NULL)
	234	*pPtr = '\0';
	235
	236	SetDefaultDirA(szBuffer, DriveIndex(szBuffer[0]));
	237	}
	238	}
	239
	240	int VDir::SetDirW(WCHAR const *pPath, int index)
	241	{
	242	WCHAR chr, *ptr;
7766f137 GS	243	int length = 0;
	244	if (index < driveCount && pPath != NULL) {
	245	length = wcslen(pPath);
	246	pMem->Free(dirTableW[index]);
	247	ptr = dirTableW[index] = (WCHAR)pMem->Malloc((length+2)2);
	248	if (ptr != NULL) {
aa2b96ec	249	char *ansi;
7766f137 GS	250	wcscpy(ptr, pPath);
	251	ptr += length-1;
	252	chr = *ptr++;
	253	if (chr != '\\' && chr != '/') {
	254	*ptr++ = '\\';
	255	*ptr = '\0';
	256	}
aa2b96ec JD	257	ansi = win32_ansipath(dirTableW[index]);
aa2b96ec JD	258	length = strlen(ansi);
7766f137 GS	259	pMem->Free(dirTableA[index]);
	260	dirTableA[index] = (char*)pMem->Malloc(length+1);
	261	if (dirTableA[index] != NULL) {
aa2b96ec	262	strcpy(dirTableA[index], ansi);
7766f137	263	}
aa2b96ec	264	win32_free(ansi);
7766f137 GS	265	}
7766f137 GS	266	}
f7aeb604 GS	267
	268	if(bManageDirectory)
	269	::SetCurrentDirectoryW(pPath);
	270
7766f137 GS	271	return length;
	272	}
	273
	274	void VDir::SetDefaultW(WCHAR const *pDefault)
	275	{
	276	WCHAR szBuffer[MAX_PATH+1];
	277	WCHAR *pPtr;
	278
	279	if (GetFullPathNameW(pDefault, (sizeof(szBuffer)/sizeof(WCHAR)), szBuffer, &pPtr)) {
	280	if (*pDefault != '.' && pPtr != NULL)
	281	*pPtr = '\0';
	282
	283	SetDefaultDirW(szBuffer, DriveIndex((char)szBuffer[0]));
	284	}
	285	}
	286
	287	inline BOOL IsPathSep(char ch)
	288	{
	289	return (ch == '\\' \|\| ch == '/');
	290	}
	291
	292	inline void DoGetFullPathNameA(char* lpBuffer, DWORD dwSize, char* Dest)
	293	{
	294	char *pPtr;
	295
	296	/*
	297	* On WinNT GetFullPathName does not fail, (or at least always
9849c14c	298	* succeeds when the drive is valid) WinNT does set *Dest to NULL
7766f137 GS	299	* On Win98 GetFullPathName will set last error if it fails, but
	300	* does not touch *Dest
	301	*/
	302	*Dest = '\0';
	303	GetFullPathNameA(lpBuffer, dwSize, Dest, &pPtr);
	304	}
	305
e2694c95 GS	306	inline bool IsSpecialFileName(const char* pName)
	307	{
	308	/* specical file names are devices that the system can open
	309	* these include AUX, CON, NUL, PRN, COMx, LPTx, CLOCK$, CONIN$, CONOUT$
	310	* (x is a single digit, and names are case-insensitive)
	311	*/
	312	char ch = (pName[0] & ~0x20);
	313	switch (ch)
	314	{
	315	case 'A': /* AUX */
	316	if (((pName[1] & ~0x20) == 'U')
	317	&& ((pName[2] & ~0x20) == 'X')
	318	&& !pName[3])
	319	return true;
	320	break;
	321	case 'C': /* CLOCK$, COMx, CON, CONIN$ CONOUT$ */
	322	ch = (pName[1] & ~0x20);
	323	switch (ch)
	324	{
	325	case 'L': /* CLOCK$ */
	326	if (((pName[2] & ~0x20) == 'O')
	327	&& ((pName[3] & ~0x20) == 'C')
	328	&& ((pName[4] & ~0x20) == 'K')
	329	&& (pName[5] == '$')
	330	&& !pName[6])
	331	return true;
	332	break;
	333	case 'O': /* COMx, CON, CONIN$ CONOUT$ */
	334	if ((pName[2] & ~0x20) == 'M') {
	335	if ((pName[3] >= '1') && (pName[3] <= '9')
	336	&& !pName[4])
	337	return true;
	338	}
	339	else if ((pName[2] & ~0x20) == 'N') {
	340	if (!pName[3])
	341	return true;
	342	else if ((pName[3] & ~0x20) == 'I') {
	343	if (((pName[4] & ~0x20) == 'N')
	344	&& (pName[5] == '$')
	345	&& !pName[6])
	346	return true;
	347	}
	348	else if ((pName[3] & ~0x20) == 'O') {
	349	if (((pName[4] & ~0x20) == 'U')
	350	&& ((pName[5] & ~0x20) == 'T')
	351	&& (pName[6] == '$')
	352	&& !pName[7])
	353	return true;
	354	}
	355	}
	356	break;
	357	}
	358	break;
	359	case 'L': /* LPTx */
	360	if (((pName[1] & ~0x20) == 'U')
	361	&& ((pName[2] & ~0x20) == 'X')
	362	&& (pName[3] >= '1') && (pName[3] <= '9')
	363	&& !pName[4])
	364	return true;
	365	break;
	366	case 'N': /* NUL */
	367	if (((pName[1] & ~0x20) == 'U')
	368	&& ((pName[2] & ~0x20) == 'L')
	369	&& !pName[3])
370	return true;
371	break;
372	case 'P': /* PRN */
373	if (((pName[1] & ~0x20) == 'R')
374	&& ((pName[2] & ~0x20) == 'N')
375	&& !pName[3])
376	return true;
377	break;
378	}
379	return false;
380	}
381
7766f137 GS	382	char VDir::MapPathA(const char pInName)
	383	{ /*
	384	* possiblities -- relative path or absolute path with or without drive letter
	385	* OR UNC name
	386	*/
52236464	387	int driveIndex;
7766f137 GS	388	char szBuffer[(MAX_PATH+1)*2];
7766f137 GS	389	char szlBuf[MAX_PATH+1];
93153446 GS	390	int length = strlen(pInName);
	391
	392	if (!length)
	393	return (char*)pInName;
7766f137	394
93153446	395	if (length > MAX_PATH) {
7766f137 GS	396	strncpy(szlBuf, pInName, MAX_PATH);
	397	if (IsPathSep(pInName[0]) && !IsPathSep(pInName[1])) {
	398	/* absolute path - reduce length by 2 for drive specifier */
	399	szlBuf[MAX_PATH-2] = '\0';
	400	}
	401	else
	402	szlBuf[MAX_PATH] = '\0';
	403	pInName = szlBuf;
	404	}
	405	/* strlen(pInName) is now <= MAX_PATH */
	406
52236464	407	if (length > 1 && pInName[1] == ':') {
7766f137	408	/* has drive letter */
52236464	409	if (length > 2 && IsPathSep(pInName[2])) {
7766f137	410	/* absolute with drive letter */
98b36f88	411	DoGetFullPathNameA((char*)pInName, sizeof(szLocalBufferA), szLocalBufferA);
7766f137 GS	412	}
	413	else {
	414	/* relative path with drive letter */
52236464 TC	415	driveIndex = DriveIndex(*pInName);
	416	if (driveIndex < 0 \|\| driveIndex >= driveLetterCount)
	417	return (char *)pInName;
	418	strcpy(szBuffer, GetDirA(driveIndex));
7766f137 GS	419	strcat(szBuffer, &pInName[2]);
	420	if(strlen(szBuffer) > MAX_PATH)
	421	szBuffer[MAX_PATH] = '\0';
	422
	423	DoGetFullPathNameA(szBuffer, sizeof(szLocalBufferA), szLocalBufferA);
	424	}
	425	}
	426	else {
	427	/* no drive letter */
52236464	428	if (length > 1 && IsPathSep(pInName[1]) && IsPathSep(pInName[0])) {
7766f137	429	/* UNC name */
98b36f88	430	DoGetFullPathNameA((char*)pInName, sizeof(szLocalBufferA), szLocalBufferA);
7766f137 GS	431	}
	432	else {
	433	strcpy(szBuffer, GetDefaultDirA());
	434	if (IsPathSep(pInName[0])) {
	435	/* absolute path */
98b36f88 GS	436	strcpy(&szBuffer[2], pInName);
98b36f88 GS	437	DoGetFullPathNameA(szBuffer, sizeof(szLocalBufferA), szLocalBufferA);
7766f137 GS	438	}
	439	else {
	440	/* relative path */
e2694c95 GS	441	if (IsSpecialFileName(pInName)) {
	442	return (char*)pInName;
	443	}
	444	else {
	445	strcat(szBuffer, pInName);
	446	if (strlen(szBuffer) > MAX_PATH)
	447	szBuffer[MAX_PATH] = '\0';
7766f137	448
e2694c95 GS	449	DoGetFullPathNameA(szBuffer, sizeof(szLocalBufferA), szLocalBufferA);
e2694c95 GS	450	}
7766f137 GS	451	}
	452	}
	453	}
	454
	455	return szLocalBufferA;
	456	}
	457
	458	int VDir::SetCurrentDirectoryA(char *lpBuffer)
	459	{
93153446	460	char *pPtr;
fd9459bc	461	int length, nRet = -1;
7766f137	462
93153446 GS	463	pPtr = MapPathA(lpBuffer);
	464	length = strlen(pPtr);
	465	if(length > 3 && IsPathSep(pPtr[length-1])) {
	466	/* don't remove the trailing slash from 'x:\' */
	467	pPtr[length-1] = '\0';
fd9459bc	468	}
7766f137	469
93153446 GS	470	DWORD r = GetFileAttributesA(pPtr);
	471	if ((r != 0xffffffff) && (r & FILE_ATTRIBUTE_DIRECTORY))
	472	{
2eb25c99 JH	473	char szBuffer[(MAX_PATH+1)*2];
	474	DoGetFullPathNameA(pPtr, sizeof(szBuffer), szBuffer);
	475	SetDefaultDirA(szBuffer, DriveIndex(szBuffer[0]));
7766f137 GS	476	nRet = 0;
7766f137 GS	477	}
93153446	478
7766f137 GS	479	return nRet;
	480	}
	481
	482	DWORD VDir::CalculateEnvironmentSpace(void)
9afd7f94	483	{ /* the current directory environment strings are stored as '=D:=d:\path' */
7766f137 GS	484	int index;
	485	DWORD dwSize = 0;
	486	for (index = 0; index < driveCount; ++index) {
	487	if (dirTableA[index] != NULL) {
9afd7f94	488	dwSize += strlen(dirTableA[index]) + 5; /* add 1 for trailing NULL and 4 for '=D:=' */
7766f137 GS	489	}
	490	}
	491	return dwSize;
	492	}
	493
	494	LPSTR VDir::BuildEnvironmentSpace(LPSTR lpStr)
9afd7f94 GS	495	{ /* store the current directory environment strings as '=D:=d:\path' */
9afd7f94 GS	496	int index, length;
7766f137 GS	497	LPSTR lpDirStr;
	498	for (index = 0; index < driveCount; ++index) {
	499	lpDirStr = dirTableA[index];
	500	if (lpDirStr != NULL) {
	501	lpStr[0] = '=';
	502	lpStr[1] = lpDirStr[0];
9afd7f94 GS	503	lpStr[2] = '\0';
	504	CharUpper(&lpStr[1]);
	505	lpStr[2] = ':';
	506	lpStr[3] = '=';
	507	strcpy(&lpStr[4], lpDirStr);
	508	length = strlen(lpDirStr);
	509	lpStr += length + 5; /* add 1 for trailing NULL and 4 for '=D:=' */
	510	if (length > 3 && IsPathSep(lpStr[-2])) {
	511	lpStr[-2] = '\0'; /* remove the trailing path separator */
	512	--lpStr;
	513	}
7766f137 GS	514	}
	515	}
	516	return lpStr;
	517	}
	518
	519	inline BOOL IsPathSep(WCHAR ch)
	520	{
	521	return (ch == '\\' \|\| ch == '/');
	522	}
	523
	524	inline void DoGetFullPathNameW(WCHAR* lpBuffer, DWORD dwSize, WCHAR* Dest)
	525	{
	526	WCHAR *pPtr;
	527
	528	/*
	529	* On WinNT GetFullPathName does not fail, (or at least always
9849c14c	530	* succeeds when the drive is valid) WinNT does set *Dest to NULL
7766f137 GS	531	* On Win98 GetFullPathName will set last error if it fails, but
	532	* does not touch *Dest
	533	*/
	534	*Dest = '\0';
	535	GetFullPathNameW(lpBuffer, dwSize, Dest, &pPtr);
	536	}
	537
e2694c95 GS	538	inline bool IsSpecialFileName(const WCHAR* pName)
	539	{
	540	/* specical file names are devices that the system can open
	541	* these include AUX, CON, NUL, PRN, COMx, LPTx, CLOCK$, CONIN$, CONOUT$
	542	* (x is a single digit, and names are case-insensitive)
	543	*/
	544	WCHAR ch = (pName[0] & ~0x20);
	545	switch (ch)
	546	{
	547	case 'A': /* AUX */
	548	if (((pName[1] & ~0x20) == 'U')
	549	&& ((pName[2] & ~0x20) == 'X')
	550	&& !pName[3])
	551	return true;
	552	break;
	553	case 'C': /* CLOCK$, COMx, CON, CONIN$ CONOUT$ */
	554	ch = (pName[1] & ~0x20);
	555	switch (ch)
	556	{
	557	case 'L': /* CLOCK$ */
	558	if (((pName[2] & ~0x20) == 'O')
	559	&& ((pName[3] & ~0x20) == 'C')
	560	&& ((pName[4] & ~0x20) == 'K')
	561	&& (pName[5] == '$')
	562	&& !pName[6])
	563	return true;
	564	break;
	565	case 'O': /* COMx, CON, CONIN$ CONOUT$ */
	566	if ((pName[2] & ~0x20) == 'M') {
	567	if ((pName[3] >= '1') && (pName[3] <= '9')
	568	&& !pName[4])
	569	return true;
	570	}
	571	else if ((pName[2] & ~0x20) == 'N') {
	572	if (!pName[3])
	573	return true;
	574	else if ((pName[3] & ~0x20) == 'I') {
	575	if (((pName[4] & ~0x20) == 'N')
	576	&& (pName[5] == '$')
	577	&& !pName[6])
	578	return true;
	579	}
	580	else if ((pName[3] & ~0x20) == 'O') {
	581	if (((pName[4] & ~0x20) == 'U')
	582	&& ((pName[5] & ~0x20) == 'T')
	583	&& (pName[6] == '$')
	584	&& !pName[7])
	585	return true;
	586	}
	587	}
	588	break;
	589	}
	590	break;
	591	case 'L': /* LPTx */
	592	if (((pName[1] & ~0x20) == 'U')
	593	&& ((pName[2] & ~0x20) == 'X')
	594	&& (pName[3] >= '1') && (pName[3] <= '9')
	595	&& !pName[4])
	596	return true;
	597	break;
	598	case 'N': /* NUL */
	599	if (((pName[1] & ~0x20) == 'U')
	600	&& ((pName[2] & ~0x20) == 'L')
	601	&& !pName[3])
602	return true;
603	break;
604	case 'P': /* PRN */
605	if (((pName[1] & ~0x20) == 'R')
606	&& ((pName[2] & ~0x20) == 'N')
607	&& !pName[3])
608	return true;
609	break;
610	}
611	return false;
612	}
613
7766f137 GS	614	WCHAR* VDir::MapPathW(const WCHAR *pInName)
	615	{ /*
	616	* possiblities -- relative path or absolute path with or without drive letter
	617	* OR UNC name
	618	*/
52236464	619	int driveIndex;
7766f137 GS	620	WCHAR szBuffer[(MAX_PATH+1)*2];
7766f137 GS	621	WCHAR szlBuf[MAX_PATH+1];
93153446	622	int length = wcslen(pInName);
7766f137	623
93153446 GS	624	if (!length)
	625	return (WCHAR*)pInName;
	626
	627	if (length > MAX_PATH) {
7766f137 GS	628	wcsncpy(szlBuf, pInName, MAX_PATH);
	629	if (IsPathSep(pInName[0]) && !IsPathSep(pInName[1])) {
	630	/* absolute path - reduce length by 2 for drive specifier */
	631	szlBuf[MAX_PATH-2] = '\0';
	632	}
	633	else
	634	szlBuf[MAX_PATH] = '\0';
	635	pInName = szlBuf;
	636	}
	637	/* strlen(pInName) is now <= MAX_PATH */
	638
52236464	639	if (length > 1 && pInName[1] == ':') {
7766f137 GS	640	/* has drive letter */
	641	if (IsPathSep(pInName[2])) {
	642	/* absolute with drive letter */
98b36f88	643	DoGetFullPathNameW((WCHAR*)pInName, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW);
7766f137 GS	644	}
	645	else {
	646	/* relative path with drive letter */
52236464 TC	647	driveIndex = DriveIndex(*pInName);
	648	if (driveIndex < 0 \|\| driveIndex >= driveLetterCount)
	649	return (WCHAR *)pInName;
	650	wcscpy(szBuffer, GetDirW(driveIndex));
7766f137 GS	651	wcscat(szBuffer, &pInName[2]);
	652	if(wcslen(szBuffer) > MAX_PATH)
	653	szBuffer[MAX_PATH] = '\0';
	654
	655	DoGetFullPathNameW(szBuffer, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW);
	656	}
	657	}
	658	else {
	659	/* no drive letter */
52236464	660	if (length > 1 && IsPathSep(pInName[1]) && IsPathSep(pInName[0])) {
7766f137	661	/* UNC name */
98b36f88	662	DoGetFullPathNameW((WCHAR*)pInName, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW);
7766f137 GS	663	}
	664	else {
	665	wcscpy(szBuffer, GetDefaultDirW());
	666	if (IsPathSep(pInName[0])) {
	667	/* absolute path */
98b36f88 GS	668	wcscpy(&szBuffer[2], pInName);
98b36f88 GS	669	DoGetFullPathNameW(szBuffer, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW);
7766f137 GS	670	}
	671	else {
	672	/* relative path */
e2694c95 GS	673	if (IsSpecialFileName(pInName)) {
	674	return (WCHAR*)pInName;
	675	}
	676	else {
	677	wcscat(szBuffer, pInName);
	678	if (wcslen(szBuffer) > MAX_PATH)
	679	szBuffer[MAX_PATH] = '\0';
7766f137	680
e2694c95 GS	681	DoGetFullPathNameW(szBuffer, (sizeof(szLocalBufferW)/sizeof(WCHAR)), szLocalBufferW);
e2694c95 GS	682	}
7766f137 GS	683	}
	684	}
	685	}
	686	return szLocalBufferW;
	687	}
	688
fd9459bc GS	689	int VDir::SetCurrentDirectoryW(WCHAR *lpBuffer)
fd9459bc GS	690	{
93153446	691	WCHAR *pPtr;
fd9459bc GS	692	int length, nRet = -1;
fd9459bc GS	693
93153446 GS	694	pPtr = MapPathW(lpBuffer);
	695	length = wcslen(pPtr);
	696	if(length > 3 && IsPathSep(pPtr[length-1])) {
	697	/* don't remove the trailing slash from 'x:\' */
	698	pPtr[length-1] = '\0';
fd9459bc GS	699	}
fd9459bc GS	700
93153446 GS	701	DWORD r = GetFileAttributesW(pPtr);
	702	if ((r != 0xffffffff) && (r & FILE_ATTRIBUTE_DIRECTORY))
	703	{
2eb25c99 JH	704	WCHAR wBuffer[(MAX_PATH+1)*2];
	705	DoGetFullPathNameW(pPtr, (sizeof(wBuffer)/sizeof(WCHAR)), wBuffer);
	706	SetDefaultDirW(wBuffer, DriveIndex((char)wBuffer[0]));
fd9459bc GS	707	nRet = 0;
fd9459bc GS	708	}
93153446	709
fd9459bc GS	710	return nRet;
fd9459bc GS	711	}
7766f137 GS	712
7766f137 GS	713	#endif /* ___VDir_H___ */