TCP_SYN_RECV      859 ext/socket/option.c #if defined(HAVE_CONST_TCP_SYN_RECV) && !defined(TCP_SYN_RECV)
TCP_SYN_RECV      860 ext/socket/option.c # define TCP_SYN_RECV TCP_SYN_RECV
TCP_SYN_RECV      978 ext/socket/option.c # ifdef TCP_SYN_RECV
TCP_SYN_RECV      979 ext/socket/option.c           case TCP_SYN_RECV: rb_str_cat_cstr(ret, " state=SYN_RECV"); break;