if(unlink(addr.sun_path) < 0 && errno != ENOENT)
error(errno, "removing %s", addr.sun_path);
xsetsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof one);
if(unlink(addr.sun_path) < 0 && errno != ENOENT)
error(errno, "removing %s", addr.sun_path);
xsetsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof one);