diff --git a/usr.sbin/ndp/ndp_netlink.c b/usr.sbin/ndp/ndp_netlink.c index 546057e5e552..7bd3252f0943 100644 --- a/usr.sbin/ndp/ndp_netlink.c +++ b/usr.sbin/ndp/ndp_netlink.c @@ -314,12 +314,24 @@ print_entries_nl(uint32_t ifindex, struct sockaddr_in6 *addr, bool cflag) struct snl_state ss_req = {}, ss_cmd = {}; struct snl_parsed_link_simple link = {}; struct snl_writer nw; + struct nlmsghdr *hdr; + struct ndmsg *ndmsg; nl_init_socket(&ss_req); snl_init_writer(&ss_req, &nw); - struct nlmsghdr *hdr = snl_create_msg_request(&nw, RTM_GETNEIGH); - struct ndmsg *ndmsg = snl_reserve_msg_object(&nw, struct ndmsg); + /* Print header */ + if (!opts.tflag && !cflag) { + char xobuf[200]; + snprintf(xobuf, sizeof(xobuf), + "{T:/%%-%d.%ds} {T:/%%-%d.%ds} {T:/%%%d.%ds} {T:/%%-9.9s} {T:/%%1s} {T:/%%5s}\n", + W_ADDR, W_ADDR, W_LL, W_LL, W_IF, W_IF); + xo_emit(xobuf, "Neighbor", "Linklayer Address", "Netif", "Expire", "S", "Flags"); + } + +again: + hdr = snl_create_msg_request(&nw, RTM_GETNEIGH); + ndmsg = snl_reserve_msg_object(&nw, struct ndmsg); if (ndmsg != NULL) { ndmsg->ndm_family = AF_INET6; ndmsg->ndm_ifindex = ifindex; @@ -335,14 +347,6 @@ print_entries_nl(uint32_t ifindex, struct sockaddr_in6 *addr, bool cflag) int count = 0; nl_init_socket(&ss_cmd); - /* Print header */ - if (!opts.tflag && !cflag) { - char xobuf[200]; - snprintf(xobuf, sizeof(xobuf), - "{T:/%%-%d.%ds} {T:/%%-%d.%ds} {T:/%%%d.%ds} {T:/%%-9.9s} {T:/%%1s} {T:/%%5s}\n", - W_ADDR, W_ADDR, W_LL, W_LL, W_IF, W_IF); - xo_emit(xobuf, "Neighbor", "Linklayer Address", "Netif", "Expire", "S", "Flags"); - } xo_open_list("neighbor-cache"); while ((hdr = snl_read_reply_multi(&ss_req, nlmsg_seq, &e)) != NULL) { @@ -381,6 +385,12 @@ print_entries_nl(uint32_t ifindex, struct sockaddr_in6 *addr, bool cflag) count++; snl_clear_lb(&ss_req); } + if (opts.repeat) { + xo_emit("\n"); + xo_flush(); + sleep(opts.repeat); + goto again; + } xo_close_list("neighbor-cache"); snl_free(&ss_req);