установить квалификатор записи ACL (set the qualifier of an ACL entry)
Имя (Name)
acl_set_qualifier — set the qualifier of an ACL entry
Библиотека (Library)
Linux Access Control Lists library (libacl, -lacl).
Синопсис (Synopsis)
#include <sys/types.h>
#include <sys/acl.h>
int
acl_set_qualifier(acl_entry_t entry_d, const void *qualifier_p);
Описание (Description)
The acl_set_qualifier() function sets the qualifier of the ACL
entry indicated by the argument entry_d to the value referred to by
the argument qualifier_p. If the value of the tag type in the ACL
entry referred to by entry_d is ACL_USER, then the value referred
to by qualifier_p shall be of type uid_t. If the value of the tag
type in the ACL entry referred to by entry_d is ACL_GROUP, then the
value referred to by qualifier_p shall be of type gid_t. If the
value of the tag type in the ACL entry referred to by entry_d is a
tag type for which a qualifier is not supported,
acl_set_qualifier() returns an error.
Any ACL entry descriptors that refer to the entry referred to by
entry_d continue to refer to that entry. This function may cause
memory to be allocated. The caller should free any releasable
memory, when the ACL is no longer required, by calling acl_free()
with a pointer to the ACL as argument.
Возвращаемое значение (Return value)
The acl_set_qualifier() function returns the value 0 if successful;
otherwise the value -1 is returned and the global variable errno is
set to indicate the error.
Ошибки (Error)
If any of the following conditions occur, the acl_set_qualifier()
function returns -1 and sets errno to the corresponding value:
[EINVAL] The argument entry_d is not a valid descriptor
for an ACL entry.
The value of the tag type in the ACL entry
referenced by the argument entry_d is neither
ACL_USER nor ACL_GROUP.
The value pointed to by the argument qualifier_p
is not valid.
[ENOMEM] The acl_set_qualifier() function is unable to
allocate the memory required for the ACL
qualifier.
Стандарты (Conforming to)
IEEE Std 1003.1e draft 17 ('POSIX.1e', abandoned)
Смотри также (See also)
acl_create_entry(3), acl_free(3), acl_get_permset(3),
acl_get_qualifier(3), acl_get_tag_type(3), acl_set_entry(3),
acl_set_permset(3), acl_set_tag_type(3), acl(5)
