Int 21 Fn 4302  - Dr Dos 3.41+ Internal - Get Access Rights                [O]

   AX = 4302h
   DS:DX -> ASCIZ pathname

Return: CF clear if successful
       CX = access rights (see #1108)
       AX = CX (DR DOS 5.0)
   CF set on error
       AX = error code
Desc:  Determine which operations the calling program may perform on a
     specified file without being required to provide a password.

Notes: this protection scheme has been coordinated on all current Digital
     Research/Novell operating systems (DR DOS 3.41+, DRMDOS 5.x, and
     FlexOS 2+)
   this function is documented in DR DOS 6.0 and corresponds to the
     "Get/Set File Attributes" function, subfunction 2, documented in
     Concurrent DOS.
   only FlexOS actually uses the "execution" bits; DR DOS 3.41+ treats
     them as "read" bits.
   DR DOS 3.41-5.x only use bits 0-3.  Only DR DOS 6.0 using a
     DRMDOS 5.x security system allowing for users and groups uses bits
     4-11.

See Also: AX=4303h,#3763 at INT 21/AH=11h

Bitfields for DR DOS file access rights:
Bit(s) Description (Table 1108)
 0 owner delete requires password
 1 owner execution requires password (FlexOS)
 2 owner write requires password
 3 owner read requires password
 4 group delete requires password
 5 group execution requires password (FlexOS)
 6 group write requires password
 7 group read requires password
 8 world delete requires password
 9 world execution requires password (FlexOS)
 10    world write requires password
 11    world read requires password