/**
* Converts dos-style attributes to Unix attributes.
*
* @returns
* @param fMode The mode mask containing dos-style attributes only.
* @param pszName The filename which this applies to (exe check).
* @param cbName The length of that filename. (optional, set 0)
*/
RTFMODE rtFsModeFromDos(RTFMODE fMode, const char *pszName, size_t cbName)
{
fMode &= ~((1 << RTFS_DOS_SHIFT) - 1);
/* everything is readable. */
fMode |= RTFS_UNIX_IRUSR | RTFS_UNIX_IRGRP | RTFS_UNIX_IROTH;
if (fMode & RTFS_DOS_DIRECTORY)
/* directories are executable. */
fMode |= RTFS_TYPE_DIRECTORY | RTFS_UNIX_IXUSR | RTFS_UNIX_IXGRP | RTFS_UNIX_IXOTH;
else
{
fMode |= RTFS_TYPE_FILE;
if (!cbName && pszName)
cbName = strlen(pszName);
if (cbName >= 4 && pszName[cbName - 4] == '.')
{
/* check for executable extension. */
const char *pszExt = &pszName[cbName - 3];
char szExt[4];
szExt[0] = RT_C_TO_LOWER(pszExt[0]);
szExt[1] = RT_C_TO_LOWER(pszExt[1]);
szExt[2] = RT_C_TO_LOWER(pszExt[2]);
szExt[3] = '\0';
if ( !memcmp(szExt, "exe", 4)
|| !memcmp(szExt, "bat", 4)
|| !memcmp(szExt, "com", 4)
|| !memcmp(szExt, "cmd", 4)
|| !memcmp(szExt, "btm", 4)
)
fMode |= RTFS_UNIX_IXUSR | RTFS_UNIX_IXGRP | RTFS_UNIX_IXOTH;
}
}
/* Is it really a symbolic link? */
if (fMode & RTFS_DOS_NT_REPARSE_POINT)
fMode = (fMode & ~RTFS_TYPE_MASK) | RTFS_TYPE_SYMLINK;
/* writable? */
if (!(fMode & RTFS_DOS_READONLY))
fMode |= RTFS_UNIX_IWUSR | RTFS_UNIX_IWGRP | RTFS_UNIX_IWOTH;
return fMode;
}
RTDECL(int) RTPathGetCurrentOnDrive(char chDrive, char *pszPath, size_t cbPath)
{
#ifdef HAVE_DRIVE
/*
* Check if it's the same drive as the current directory.
*/
int rc = RTPathGetCurrent(pszPath, cbPath);
if (RT_SUCCESS(rc))
{
if ( ( chDrive == *pszPath
|| RT_C_TO_LOWER(chDrive) == RT_C_TO_LOWER(*pszPath))
&& RTPATH_IS_VOLSEP(pszPath[1]))
return rc;
/*
* Different drive, indicate root.
*/
if (cbPath >= 4)
{
pszPath[0] = RT_C_TO_UPPER(chDrive);
pszPath[1] = ':';
pszPath[2] = RTPATH_SLASH;
pszPath[3] = '\0';
return VINF_SUCCESS;
}
}
return rc;
#else
/*
* No driver letters, just return root slash on whatever we're asked.
*/
NOREF(chDrive);
if (cbPath >= 2)
{
pszPath[0] = RTPATH_SLASH;
pszPath[1] = '\0';
return VINF_SUCCESS;
}
return VERR_BUFFER_OVERFLOW;
#endif
}
