/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2017 Red Hat, Inc.
 */

#include "nm-default.h"

#include "nm-compat.h"

/*****************************************************************************/

static void
_get_keys_cb(const char *key, const char *val, gpointer user_data)
{
    GPtrArray *a = user_data;

    g_ptr_array_add(a, g_strdup(key));
}

static const char **
_get_keys(NMSettingVpn *setting, gboolean is_secrets, guint *out_length)
{
    guint        len;
    const char **keys = NULL;
    GPtrArray *  a;

    nm_assert(NM_IS_SETTING_VPN(setting));

    if (is_secrets)
        len = nm_setting_vpn_get_num_secrets(setting);
    else
        len = nm_setting_vpn_get_num_data_items(setting);

    a = g_ptr_array_sized_new(len + 1);

    if (is_secrets)
        nm_setting_vpn_foreach_secret(setting, _get_keys_cb, a);
    else
        nm_setting_vpn_foreach_data_item(setting, _get_keys_cb, a);

    len = a->len;
    if (len) {
        g_ptr_array_sort(a, nm_strcmp_p);
        g_ptr_array_add(a, NULL);
        keys = g_malloc(a->len * sizeof(gpointer));
        memcpy(keys, a->pdata, a->len * sizeof(gpointer));

        /* we need to cache the keys *somewhere*. */
        g_object_set_qdata_full(G_OBJECT(setting),
                                is_secrets
                                    ? NM_CACHED_QUARK("libnm._nm_setting_vpn_get_secret_keys")
                                    : NM_CACHED_QUARK("libnm._nm_setting_vpn_get_data_keys"),
                                g_ptr_array_free(a, FALSE),
                                (GDestroyNotify) g_strfreev);
    } else
        g_ptr_array_free(a, TRUE);

    NM_SET_OUT(out_length, len);
    return keys;
}

const char **
_nm_setting_vpn_get_data_keys(NMSettingVpn *setting, guint *out_length)
{
    g_return_val_if_fail(NM_IS_SETTING_VPN(setting), NULL);

    return _get_keys(setting, FALSE, out_length);
}

const char **
_nm_setting_vpn_get_secret_keys(NMSettingVpn *setting, guint *out_length)
{
    g_return_val_if_fail(NM_IS_SETTING_VPN(setting), NULL);

    return _get_keys(setting, TRUE, out_length);
}