table of contents
|ACL_EQUIV_MODE(3)||Library Functions Manual||ACL_EQUIV_MODE(3)|
check for an equivalent ACL
Linux Access Control Lists library (libacl, -lacl).
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
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.
On success, this function returns the value
0 if acl is an equivalent ACL,
and the value
1 if acl is not
an equivalent ACL. On error, the value
returned, and errno is set appropriately.
If any of the following conditions occur, the
acl_equiv_mode() function returns the value
-1 and sets errno to the
- The argument acl is not a valid pointer to an ACL.
This is a non-portable, Linux specific extension to the ACL manipulation functions defined in IEEE Std 1003.1e draft 17 (“POSIX.1e”, abandoned).
Written by Andreas Gruenbacher ⟨firstname.lastname@example.org⟩.
|March 23, 2002||Linux ACL|