acl_set_qualifier3
Set acl tag qualifier
Usage
#include <sys/types.h>
#include <sys/acl.h>
int
acl_set_qualifier(acl_entry_t entry_d, const void *tag_qualifier_p);
Library
Standard C Library (libc, -lc)
Overview
The acl_set_qualifier() function is a POSIX.1e call that sets the qualifier of the tag for the ACL entry entry_d to the value referred to by tag_qualifier_p.
The tag type of the ACL entry, as previously set with acl_set_tag_type(3), must be either ACL_EXTENDED_ALLOW or ACL_EXTENDED_DENY, and tag_qualifier_p should be a pointer to a global unique identifier (of type guid_t).
Return values
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.
Errors
The acl_set_qualifier() function fails if:
- [EINVAL]
-
Argument entry_d is not a valid descriptor for an ACL entry. The tag type of the ACL entry entry_d is not ACL_EXTENDED_ALLOW or ACL_EXTENDED_DENY. The value pointed to by tag_qualifier_p is not valid.
- [ENOMEM]
-
The value to be returned requires more memory than is allowed by the hardware or system-imposed memory management constraints.
Releases
135 releases since Mac OS X 10.4; the text changed 1 time.