проверьте эквивалентный ACL (check for an equivalent ACL)
Имя (Name)
acl_equiv_mode — check for an equivalent ACL
Библиотека (Library)
Linux Access Control Lists library (libacl, -lacl).
Синопсис (Synopsis)
#include <sys/types.h>
#include <acl/libacl.h>
int
acl_equiv_mode(acl_t acl, mode_t *mode_p);
Описание (Description)
The 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.
Возвращаемое значение (Return value)
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 -1 is returned, and errno is set appropriately.
Ошибки (Error)
If any of the following conditions occur, the acl_equiv_mode()
function returns the value -1 and sets errno to the corresponding
value:
[EINVAL] The argument acl is not a valid pointer to an
ACL.
Стандарты (Conforming to)
This is a non-portable, Linux specific extension to the ACL
manipulation functions defined in IEEE Std 1003.1e draft 17
('POSIX.1e', abandoned).
Смотри также (See also)
acl_from_mode(3), acl(5)
