NAME

acl_set_qualifier — set ACL tag qualifier

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <sys/types.h>
#include <sys/acl.h>

int
acl_set_qualifier(acl_entry_t entry_d, const void *tag_qualifier_p);

DESCRIPTION

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.

SEE ALSO

acl(3), acl_get_qualifier(3), acl_set_tag_type(3), posix1e(3)

STANDARDS

POSIX.1e is described in IEEE POSIX.1e draft 17.

AUTHORS

Michael Smith
Chris D. Faulhaber