получить размер внешнего представления ACL (get the size of the external representation of an ACL)
Имя (Name)
acl_size — get the size of the external representation of an ACL
Библиотека (Library)
Linux Access Control Lists library (libacl, -lacl).
Синопсис (Synopsis)
#include <sys/types.h>
#include <sys/acl.h>
ssize_t
acl_size(acl_t acl);
Описание (Description)
The acl_size() function return the size, in bytes, of the buffer
required to hold the exportable, contiguous, persistent form of the
ACL pointed to by the argument acl, when converted by
acl_copy_ext().
Any existing ACL entry descriptors that refer to entries in acl
continue to refer to the same entries. Any existing ACL pointers
that refer to the ACL referred to by acl continue to refer to the
ACL. The order of ACL entries within acl remains unchanged.
Возвращаемое значение (Return value)
On success, the acl_size() function returns the size in bytes of
the contiguous, persistent form of the ACL. On error, a value of
(ssize_t)-1 is returned and errno is set appropriately.
Ошибки (Error)
If any of the following conditions occur, the acl_size() function
returns a value of (ssize_t)-1 and sets errno to the corresponding
value:
[EINVAL] The argument acl is not a valid pointer to an
ACL.
Стандарты (Conforming to)
IEEE Std 1003.1e draft 17 ('POSIX.1e', abandoned)
Смотри также (See also)
acl_copy_ext(3), acl(5)
