REQUEST_RECV_FD   503 src/libsystemd/sd-resolve/sd-resolve.c                 length = recv(resolve->fds[REQUEST_RECV_FD], &buf, sizeof(buf), 0);
REQUEST_RECV_FD   569 src/libsystemd/sd-resolve/sd-resolve.c         r = socketpair(PF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0, resolve->fds + REQUEST_RECV_FD);
REQUEST_RECV_FD   582 src/libsystemd/sd-resolve/sd-resolve.c         fd_inc_rcvbuf(resolve->fds[REQUEST_RECV_FD], QUERIES_MAX * BUFSIZE);