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138 lines
4.1 KiB
C
138 lines
4.1 KiB
C
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/*
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* show.c
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*
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* Copyright (c) 1996-1999 Whistle Communications, Inc.
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* All rights reserved.
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*
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* Subject to the following obligations and disclaimer of warranty, use and
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* redistribution of this software, in source or object code forms, with or
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* without modifications are expressly permitted by Whistle Communications;
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* provided, however, that:
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* 1. Any and all reproductions of the source or object code must include the
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* copyright notice above and the following disclaimer of warranties; and
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* 2. No rights are granted, in any manner or form, to use Whistle
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* Communications, Inc. trademarks, including the mark "WHISTLE
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* COMMUNICATIONS" on advertising, endorsements, or otherwise except as
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* such appears in the above copyright notice or in the software.
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*
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* THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
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* REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
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* INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
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* WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
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* REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
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* SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
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* IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
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* RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
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* WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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* PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*/
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#include <err.h>
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#include <netgraph.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "ngctl.h"
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#define FMT " %-15s %-15s %-12s %-15s %-15s\n"
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#define UNNAMED "<unnamed>"
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#define NOSTATUS "<no status>"
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static int ShowCmd(int ac, char **av);
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const struct ngcmd show_cmd = {
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ShowCmd,
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"show [-n] <path>",
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"Show information about the node at <path>",
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"If the -n flag is given, hooks are not listed.",
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{ "inquire", "info" }
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};
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static int
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ShowCmd(int ac, char **av)
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{
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char *path;
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struct ng_mesg *resp;
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struct hooklist *hlist;
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struct nodeinfo *ninfo;
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int ch, no_hooks = 0;
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/* Get options */
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optind = 1;
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while ((ch = getopt(ac, av, "n")) != -1) {
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switch (ch) {
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case 'n':
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no_hooks = 1;
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break;
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case '?':
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default:
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return (CMDRTN_USAGE);
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break;
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}
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}
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ac -= optind;
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av += optind;
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/* Get arguments */
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switch (ac) {
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case 1:
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path = av[0];
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break;
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default:
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return (CMDRTN_USAGE);
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}
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/* Get node info and hook list */
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if (NgSendMsg(csock, path, NGM_GENERIC_COOKIE,
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NGM_LISTHOOKS, NULL, 0) < 0) {
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warn("send msg");
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return (CMDRTN_ERROR);
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}
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if (NgAllocRecvMsg(csock, &resp, NULL) < 0) {
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warn("recv msg");
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return (CMDRTN_ERROR);
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}
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/* Show node information */
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hlist = (struct hooklist *) resp->data;
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ninfo = &hlist->nodeinfo;
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if (!*ninfo->name)
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snprintf(ninfo->name, sizeof(ninfo->name), "%s", UNNAMED);
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printf(" Name: %-15s Type: %-15s ID: %08x Num hooks: %d\n",
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ninfo->name, ninfo->type, ninfo->id, ninfo->hooks);
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if (!no_hooks && ninfo->hooks > 0) {
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u_int k;
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printf(FMT, "Local hook", "Peer name",
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"Peer type", "Peer ID", "Peer hook");
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printf(FMT, "----------", "---------",
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"---------", "-------", "---------");
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for (k = 0; k < ninfo->hooks; k++) {
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struct linkinfo *const link = &hlist->link[k];
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struct nodeinfo *const peer = &hlist->link[k].nodeinfo;
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char idbuf[20];
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if (!*peer->name) {
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snprintf(peer->name, sizeof(peer->name),
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"%s", UNNAMED);
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}
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snprintf(idbuf, sizeof(idbuf), "%08x", peer->id);
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printf(FMT, link->ourhook, peer->name,
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peer->type, idbuf, link->peerhook);
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}
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}
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free(resp);
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return (CMDRTN_OK);
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}
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