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// Copyright 2013-2015 Apcera Inc. All rights reserved.
package gssapi
/*
#include <gssapi/gssapi.h>
OM_uint32
wrap_gss_create_empty_oid_set(void *fp,
OM_uint32 *minor_status,
gss_OID_set * set)
{
return ((OM_uint32(*) (
OM_uint32 *,
gss_OID_set *)) fp)(
minor_status,
set);
}
OM_uint32
wrap_gss_release_oid_set(void *fp,
OM_uint32 *minor_status,
gss_OID_set * set)
{
return ((OM_uint32(*) (
OM_uint32 *,
gss_OID_set *)) fp)(
minor_status, set);
}
OM_uint32
wrap_gss_add_oid_set_member(void *fp,
OM_uint32 *minor_status,
const gss_OID member_oid,
gss_OID_set * set)
{
return ((OM_uint32(*) (
OM_uint32 *,
const gss_OID,
gss_OID_set *)) fp)(
minor_status, member_oid, set);
}
OM_uint32
wrap_gss_test_oid_set_member(void *fp,
OM_uint32 *minor_status,
const gss_OID member_oid,
const gss_OID_set set,
int * present)
{
return ((OM_uint32(*) (
OM_uint32 *,
const gss_OID,
const gss_OID_set,
int *)) fp)(
minor_status, member_oid, set, present);
}
gss_OID
get_oid_set_member(
gss_OID_set set,
int index)
{
return &(set->elements[index]);
}
*/
import "C"
import (
"fmt"
"strings"
)
// NewOIDSet constructs a new empty OID set.
func (lib *Lib) NewOIDSet() *OIDSet {
return &OIDSet{
Lib: lib,
// C_gss_OID_set: (C.gss_OID_set)(unsafe.Pointer(nil)),
}
}
// MakeOIDSet makes an OIDSet prepopulated with the given OIDs.
func (lib *Lib) MakeOIDSet(oids ...*OID) (s *OIDSet, err error) {
s = &OIDSet{
Lib: lib,
}
var min C.OM_uint32
maj := C.wrap_gss_create_empty_oid_set(s.Fp_gss_create_empty_oid_set,
&min, &s.C_gss_OID_set)
err = s.stashLastStatus(maj, min)
if err != nil {
return nil, err
}
err = s.Add(oids...)
if err != nil {
return nil, err
}
return s, nil
}
// Release frees all C memory associated with an OIDSet.
func (s *OIDSet) Release() (err error) {
if s == nil || s.C_gss_OID_set == nil {
return nil
}
var min C.OM_uint32
maj := C.wrap_gss_release_oid_set(s.Fp_gss_release_oid_set, &min, &s.C_gss_OID_set)
return s.stashLastStatus(maj, min)
}
// Add adds OIDs to an OIDSet.
func (s *OIDSet) Add(oids ...*OID) (err error) {
var min C.OM_uint32
for _, oid := range oids {
maj := C.wrap_gss_add_oid_set_member(s.Fp_gss_add_oid_set_member,
&min, oid.C_gss_OID, &s.C_gss_OID_set)
err = s.stashLastStatus(maj, min)
if err != nil {
return err
}
}
return nil
}
// TestOIDSetMember a wrapper to determine if an OIDSet contains an OID.
func (s *OIDSet) TestOIDSetMember(oid *OID) (contains bool, err error) {
var min C.OM_uint32
var isPresent C.int
maj := C.wrap_gss_test_oid_set_member(s.Fp_gss_test_oid_set_member,
&min, oid.C_gss_OID, s.C_gss_OID_set, &isPresent)
err = s.stashLastStatus(maj, min)
if err != nil {
return false, err
}
return isPresent != 0, nil
}
// Contains (gss_test_oid_set_member) checks if an OID is present OIDSet.
func (s *OIDSet) Contains(oid *OID) bool {
contains, _ := s.TestOIDSetMember(oid)
return contains
}
// Length returns the number of OIDs in a set.
func (s *OIDSet) Length() int {
if s == nil {
return 0
}
return int(s.C_gss_OID_set.count)
}
// Get returns a specific OID from the set. The memory will be released when the
// set itself is released.
func (s *OIDSet) Get(index int) (*OID, error) {
if s == nil || index < 0 || index >= int(s.C_gss_OID_set.count) {
return nil, fmt.Errorf("index %d out of bounds", index)
}
oid := s.NewOID()
oid.C_gss_OID = C.get_oid_set_member(s.C_gss_OID_set, C.int(index))
return oid, nil
}
func (s *OIDSet) DebugString() string {
names := make([]string, 0)
for i := 0; i < s.Length(); i++ {
oid, _ := s.Get(i)
names = append(names, oid.DebugString())
}
return "[" + strings.Join(names, ", ") + "]"
}
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