- if (setsockopt(listen_sockets[sk], SOL_TCP, TCP_FASTOPEN, &smtp_connect_backlog,
- sizeof(smtp_connect_backlog)))
- log_write(0, LOG_MAIN|LOG_PANIC, "failed to set socket FASTOPEN: %s",
- strerror(errno));
+ if (setsockopt(listen_sockets[sk], IPPROTO_TCP, TCP_FASTOPEN,
+ &smtp_connect_backlog, sizeof(smtp_connect_backlog)))
+ DEBUG(D_any) debug_printf("setsockopt FASTOPEN: %s\n", strerror(errno));