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auth_xcb.c
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auth_xcb.c
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/*
Copyright (C) 2016 Peter Wu <peter@lekensteyn.nl>
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, version 3 of the License.
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 "radeontop.h"
#include <xf86drm.h>
#include <xcb/xcb.h>
#include <xcb/dri2.h>
/* Try to authenticate the DRM client with help from the X server. */
void authenticate_drm_xcb(drm_magic_t magic) {
xcb_connection_t *conn = xcb_connect(NULL, NULL);
if (!conn) {
return;
}
if (xcb_connection_has_error(conn)) {
xcb_disconnect(conn);
return;
}
xcb_screen_t *screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data;
xcb_window_t window = screen->root;
/* Authenticate our client via the X server using the magic. */
xcb_dri2_authenticate_cookie_t auth_cookie =
xcb_dri2_authenticate(conn, window, magic);
xcb_dri2_authenticate_reply_t *auth_reply =
xcb_dri2_authenticate_reply(conn, auth_cookie, NULL);
free(auth_reply);
xcb_disconnect(conn);
}