получить ACL по файловому дескриптору (get an ACL by file descriptor)
Имя (Name)
acl_get_fd — get an ACL by file descriptor
Библиотека (Library)
Linux Access Control Lists library (libacl, -lacl).
Синопсис (Synopsis)
#include <sys/types.h>
#include <sys/acl.h>
acl_t
acl_get_fd(int fd);
Описание (Description)
The acl_get_fd() function retrieves the access ACL associated with
the file referred to by fd. The ACL is placed into working storage
and acl_get_fd() returns a pointer to that storage.
In order to read an ACL from an object, a process must have read
access to the object's attributes.
This function may cause memory to be allocated. The caller should
free any releasable memory, when the new ACL is no longer required,
by calling acl_free(3) with the (void*)acl_t returned by
acl_get_fd() as an argument.
Возвращаемое значение (Return value)
On success, this function shall return a pointer to the working
storage. On error, a value of (acl_t)NULL shall be returned, and
errno is set appropriately.
Ошибки (Error)
If any of the following conditions occur, the acl_get_fd() function
returns a value of (acl_t)NULL and sets errno to the corresponding
value:
[EBADF] The fd argument is not a valid file descriptor.
[ENOMEM] The ACL working storage requires more memory
than is allowed by the hardware or system-
imposed memory management constraints.
[ENOTSUP] The file system on which the file identified by
fd is located does not support ACLs, or ACLs are
disabled.
Стандарты (Conforming to)
IEEE Std 1003.1e draft 17 ('POSIX.1e', abandoned)
Смотри также (See also)
acl_free(3), acl_get_entry(3), acl_get_file(3), acl_set_fd(3),
acl(5)
