>> acl_valid (3) ( Linux man: Библиотечные вызовы )
BSD mandoc
Linux ACL
NAME
acl_valid
- validate an ACL
LIBRARY
Linux Access Control Lists library (libacl, -lacl).
SYNOPSIS
#include <sys/types.h>
#include <sys/acl.h> int
acl_valid (acl_t acl);
DESCRIPTION
The
acl_valid ();
function checks the ACL referred to by the argument
acl
for validity.
The three required entries ACL_USER_OBJ, ACL_GROUP_OBJ, and ACL_OTHER
must exist exactly once in the ACL. If the ACL contains any ACL_USER or
ACL_GROUP entries, then an ACL_MASK entry is also required. The ACL
may contain at most one ACL_MASK entry.
The user identifiers must be unique among all entries of type ACL_USER.
The group identifiers must be unique among all entries of type ACL_GROUP.
RETURN VALUE
Rv -std acl_valid
ERRORS
If any of the following conditions occur, the
acl_valid ();
function returns
-1
and sets
errno
to the corresponding value:
Bq Er EINVAL
The argument
acl
is not a valid pointer to an ACL.
The argument
acl
does not point to a valid ACL.
One or more of the required ACL entries is not present in
acl
