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Properly free X11 resources (fixes DoS bug) (Thanks Merovius)

pull/1/head
Michael Stapelberg 2011-12-28 23:05:02 +01:00
parent f216517bb0
commit 1b757b2aa9
2 changed files with 4 additions and 0 deletions
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3
i3lock.c
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@ -269,6 +269,7 @@ static void redraw_screen() {
/* XXX: Possible optimization: Only update the area in the middle of the
* screen instead of the whole screen. */
xcb_clear_area(conn, 0, win, 0, 0, scr->width_in_pixels, scr->height_in_pixels);
xcb_free_pixmap(conn, bg_pixmap);
xcb_flush(conn);
}
@ -571,6 +572,7 @@ void handle_screen_resize(xcb_visualtype_t *vistype, xcb_window_t win, uint32_t*
if (img) {
xcb_pixmap_t bg_pixmap = draw_image(vistype, last_resolution);
xcb_change_window_attributes(conn, win, XCB_CW_BACK_PIXMAP, (uint32_t[1]){ bg_pixmap });
xcb_free_pixmap(conn, bg_pixmap);
}
#endif
@ -830,6 +832,7 @@ int main(int argc, char *argv[]) {
/* open the fullscreen window, already with the correct pixmap in place */
win = open_fullscreen_window(conn, scr, color, bg_pixmap);
xcb_free_pixmap(conn, bg_pixmap);
cursor = create_cursor(conn, scr, win, curs_choice);

1
xcb.c
View File

@ -90,6 +90,7 @@ xcb_pixmap_t create_bg_pixmap(xcb_connection_t *conn, xcb_screen_t *scr, u_int32
xcb_create_gc(conn, gc, bg_pixmap, XCB_GC_FOREGROUND, values);
xcb_rectangle_t rect = { 0, 0, resolution[0], resolution[1] };
xcb_poly_fill_rectangle(conn, bg_pixmap, gc, 1, &rect);
xcb_free_gc(conn, gc);
return bg_pixmap;
}