1/*
2 * config.c
3 *
4 * Copyright (c) 1996-1999 Whistle Communications, Inc.
5 * All rights reserved.
6 *
7 * Subject to the following obligations and disclaimer of warranty, use and
8 * redistribution of this software, in source or object code forms, with or
9 * without modifications are expressly permitted by Whistle Communications;
10 * provided, however, that:
11 * 1. Any and all reproductions of the source or object code must include the
12 *    copyright notice above and the following disclaimer of warranties; and
13 * 2. No rights are granted, in any manner or form, to use Whistle
14 *    Communications, Inc. trademarks, including the mark "WHISTLE
15 *    COMMUNICATIONS" on advertising, endorsements, or otherwise except as
16 *    such appears in the above copyright notice or in the software.
17 *
18 * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
19 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
20 * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
21 * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
23 * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
24 * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
25 * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
26 * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
27 * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
28 * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
29 * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
30 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
33 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
34 * OF SUCH DAMAGE.
35 */
36
37#include <err.h>
38#include <errno.h>
39#include <netgraph.h>
40#include <stdio.h>
41#include <string.h>
42#include <unistd.h>
43
44#include "ngctl.h"
45
46#define NOCONFIG	"<no config>"
47
48static int ConfigCmd(int ac, char **av);
49
50const struct ngcmd config_cmd = {
51	ConfigCmd,
52	"config <path> [arguments]",
53	"get or set configuration of node at <path>",
54	NULL,
55	{ NULL }
56};
57
58static int
59ConfigCmd(int ac, char **av)
60{
61	u_char sbuf[sizeof(struct ng_mesg) + NG_TEXTRESPONSE];
62	struct ng_mesg *const resp = (struct ng_mesg *) sbuf;
63	char *const status = (char *) resp->data;
64	char *path;
65	char buf[NG_TEXTRESPONSE];
66	int nostat = 0, i;
67
68	/* Get arguments */
69	if (ac < 2)
70		return (CMDRTN_USAGE);
71	path = av[1];
72
73	*buf = '\0';
74	for (i = 2; i < ac; i++) {
75		if (i != 2)
76			strcat(buf, " ");
77		strcat(buf, av[i]);
78	}
79
80	/* Get node config summary */
81	if (*buf != '\0')
82		i = NgSendMsg(csock, path, NGM_GENERIC_COOKIE,
83	            NGM_TEXT_CONFIG, buf, strlen(buf) + 1);
84	else
85		i = NgSendMsg(csock, path, NGM_GENERIC_COOKIE,
86	            NGM_TEXT_CONFIG, NULL, 0);
87	if (i < 0) {
88		switch (errno) {
89		case EINVAL:
90			nostat = 1;
91			break;
92		default:
93			warn("send msg");
94			return (CMDRTN_ERROR);
95		}
96	} else {
97		if (NgRecvMsg(csock, resp, sizeof(sbuf), NULL) < 0
98		    || (resp->header.flags & NGF_RESP) == 0)
99			nostat = 1;
100	}
101
102	/* Show it */
103	if (nostat)
104		printf("No config available for \"%s\"\n", path);
105	else
106		printf("Config for \"%s\":\n%s\n", path, status);
107	return (CMDRTN_OK);
108}
109
110