|ACL_EQUIV_MODE(3)||Library Functions Manual||ACL_EQUIV_MODE(3)|
LIBRARY¶Linux Access Control Lists library (libacl, -lacl).
acl_equiv_mode() function checks if the ACL pointed to by the argument acl contains only the required ACL entries of tag types ACL_USER_OBJ, ACL_GROUP_OBJ, and ACL_OTHER, and contains no permissions other that ACL_READ, ACL_WRITE or ACL_EXECUTE. If the ACL has this form, it can can be fully represented with the traditional file permission bits, and is considered equivalent with the traditional file permission bits.
If acl is an equivalent ACL and the pointer
mode_p is not
NULL, the value
pointed to by mode_p is set to the value that defines
the same owner, group and other permissions as contained in the ACL.
RETURN VALUE¶On success, this function returns the value
0if acl is an equivalent ACL, and the value
1if acl is not an equivalent ACL. On error, the value
-1is returned, and errno is set appropriately.
ERRORS¶If any of the following conditions occur, the
acl_equiv_mode() function returns the value
-1and sets errno to the corresponding value:
- The argument acl is not a valid pointer to an ACL.
STANDARDS¶This is a non-portable, Linux specific extension to the ACL manipulation functions defined in IEEE Std 1003.1e draft 17 (“POSIX.1e”, abandoned).
SEE ALSO¶acl_from_mode(3), acl(5)
AUTHOR¶Written by Andreas Gruenbacher ⟨email@example.com⟩.
|March 23, 2002||Linux ACL|