ukui-screensaver/BiometricAuth/giodbus.cpp

/*
 * Copyright (C) 2021 Tianjin KYLIN Information Technology Co., Ltd.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 *
**/
#include "giodbus.h"
#include <gio/gio.h>
#include <gio/gunixfdlist.h>
#include <glib.h>

int get_server_gvariant_stdout (int drvid)
{
    GDBusMessage *method_call_message;
    GDBusMessage *method_reply_message;
    GUnixFDList *fd_list;
    GError          **error = NULL;

    gint fd,dup_fd;
    const gchar * response;
    fd = -1;
    dup_fd = -1;
    method_call_message = NULL;
    method_reply_message = NULL;
    GDBusConnection *con = g_bus_get_sync(G_BUS_TYPE_SYSTEM,NULL,NULL);
    method_call_message = g_dbus_message_new_method_call ("org.ukui.Biometric",
                                                          "/org/ukui/Biometric",
                                                          "org.ukui.Biometric",
                                                          "GetFrameFd");

    g_dbus_message_set_body (method_call_message, g_variant_new ("(i)", drvid));
    method_reply_message = g_dbus_connection_send_message_with_reply_sync (con,
                                                                           method_call_message,
                                                                           G_DBUS_SEND_MESSAGE_FLAGS_NONE,
                                                                           -1,
                                                                           NULL, /* out_serial */
                                                                           NULL, /* cancellable */
                                                                           error);
    if (method_reply_message == NULL)
        goto out;

    if (g_dbus_message_get_message_type (method_reply_message) == G_DBUS_MESSAGE_TYPE_ERROR)
    {
        g_dbus_message_to_gerror (method_reply_message, error);
        goto out;
    }
    g_print("%s",g_dbus_message_print(method_reply_message,0));

    fd_list = g_dbus_message_get_unix_fd_list(method_reply_message);
    fd = g_unix_fd_list_get(fd_list,0,error);
    g_print("get fd : %d\n", fd);
     dup_fd = dup(fd);
    g_print("dup fd : %d\n", dup_fd);

out:
    g_object_unref (method_call_message);
    g_object_unref (method_reply_message);
    return dup_fd;

}