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/*
* list.c
*
* Copyright (c) 1996-1999 Whistle Communications, Inc.
* All rights reserved.
*
* Subject to the following obligations and disclaimer of warranty, use and
* redistribution of this software, in source or object code forms, with or
* without modifications are expressly permitted by Whistle Communications;
* provided, however, that:
* 1. Any and all reproductions of the source or object code must include the
* copyright notice above and the following disclaimer of warranties; and
* 2. No rights are granted, in any manner or form, to use Whistle
* Communications, Inc. trademarks, including the mark "WHISTLE
* COMMUNICATIONS" on advertising, endorsements, or otherwise except as
* such appears in the above copyright notice or in the software.
*
* THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
* REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
* INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
* WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
* REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
* SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
* IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
* RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
* WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <err.h>
#include <netgraph.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "ngctl.h"
#define UNNAMED "<unnamed>"
static int ListCmd(int ac, char **av);
const struct ngcmd list_cmd = {
ListCmd,
"list [-ln]",
"Show information about all nodes",
"The list command shows information about every node that currently"
" exists in the netgraph system. The optional -n argument limits"
" this list to only those nodes with a global name assignment."
" The optional -l argument provides verbose output that includes"
" hook information as well.",
{ "ls" }
};
static int
ListCmd(int ac, char **av)
{
struct ng_mesg *resp;
struct namelist *nlist;
struct nodeinfo *ninfo;
int list_hooks = 0;
int named_only = 0;
int ch, rtn = CMDRTN_OK;
/* Get options */
optind = 1;
while ((ch = getopt(ac, av, "ln")) != -1) {
switch (ch) {
case 'l':
list_hooks = 1;
break;
case 'n':
named_only = 1;
break;
case '?':
default:
return (CMDRTN_USAGE);
break;
}
}
ac -= optind;
av += optind;
/* Get arguments */
switch (ac) {
case 0:
break;
default:
return (CMDRTN_USAGE);
}
/* Get list of nodes */
if (NgSendMsg(csock, ".", NGM_GENERIC_COOKIE,
named_only ? NGM_LISTNAMES : NGM_LISTNODES, NULL, 0) < 0) {
warn("send msg");
return (CMDRTN_ERROR);
}
if (NgAllocRecvMsg(csock, &resp, NULL) < 0) {
warn("recv msg");
return (CMDRTN_ERROR);
}
/* Show each node */
nlist = (struct namelist *) resp->data;
printf("There are %d total %snodes:\n",
nlist->numnames, named_only ? "named " : "");
ninfo = nlist->nodeinfo;
if (list_hooks) {
char path[NG_PATHSIZ];
char *argv[2] = { "show", path };
while (nlist->numnames > 0) {
snprintf(path, sizeof(path),
"[%lx]:", (u_long)ninfo->id);
if ((rtn = (*show_cmd.func)(2, argv)) != CMDRTN_OK)
break;
ninfo++;
nlist->numnames--;
}
} else {
while (nlist->numnames > 0) {
if (!*ninfo->name)
snprintf(ninfo->name, sizeof(ninfo->name),
"%s", UNNAMED);
printf(" Name: %-15s Type: %-15s ID: %08x "
"Num hooks: %d\n",
ninfo->name, ninfo->type, ninfo->id, ninfo->hooks);
ninfo++;
nlist->numnames--;
}
}
/* Done */
free(resp);
return (rtn);
}
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