1*3b2bd0f6Slogwang /*
2*3b2bd0f6Slogwang * config.c
3*3b2bd0f6Slogwang *
4*3b2bd0f6Slogwang * Copyright (c) 1996-1999 Whistle Communications, Inc.
5*3b2bd0f6Slogwang * All rights reserved.
6*3b2bd0f6Slogwang *
7*3b2bd0f6Slogwang * Subject to the following obligations and disclaimer of warranty, use and
8*3b2bd0f6Slogwang * redistribution of this software, in source or object code forms, with or
9*3b2bd0f6Slogwang * without modifications are expressly permitted by Whistle Communications;
10*3b2bd0f6Slogwang * provided, however, that:
11*3b2bd0f6Slogwang * 1. Any and all reproductions of the source or object code must include the
12*3b2bd0f6Slogwang * copyright notice above and the following disclaimer of warranties; and
13*3b2bd0f6Slogwang * 2. No rights are granted, in any manner or form, to use Whistle
14*3b2bd0f6Slogwang * Communications, Inc. trademarks, including the mark "WHISTLE
15*3b2bd0f6Slogwang * COMMUNICATIONS" on advertising, endorsements, or otherwise except as
16*3b2bd0f6Slogwang * such appears in the above copyright notice or in the software.
17*3b2bd0f6Slogwang *
18*3b2bd0f6Slogwang * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
19*3b2bd0f6Slogwang * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
20*3b2bd0f6Slogwang * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
21*3b2bd0f6Slogwang * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
22*3b2bd0f6Slogwang * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
23*3b2bd0f6Slogwang * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
24*3b2bd0f6Slogwang * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
25*3b2bd0f6Slogwang * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
26*3b2bd0f6Slogwang * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
27*3b2bd0f6Slogwang * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
28*3b2bd0f6Slogwang * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
29*3b2bd0f6Slogwang * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
30*3b2bd0f6Slogwang * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
31*3b2bd0f6Slogwang * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32*3b2bd0f6Slogwang * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
33*3b2bd0f6Slogwang * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
34*3b2bd0f6Slogwang * OF SUCH DAMAGE.
35*3b2bd0f6Slogwang *
36*3b2bd0f6Slogwang * $FreeBSD$
37*3b2bd0f6Slogwang */
38*3b2bd0f6Slogwang
39*3b2bd0f6Slogwang #include <err.h>
40*3b2bd0f6Slogwang #include <errno.h>
41*3b2bd0f6Slogwang #include <netgraph.h>
42*3b2bd0f6Slogwang #include <stdio.h>
43*3b2bd0f6Slogwang #include <string.h>
44*3b2bd0f6Slogwang #include <unistd.h>
45*3b2bd0f6Slogwang
46*3b2bd0f6Slogwang #include "ngctl.h"
47*3b2bd0f6Slogwang
48*3b2bd0f6Slogwang #define NOCONFIG "<no config>"
49*3b2bd0f6Slogwang
50*3b2bd0f6Slogwang static int ConfigCmd(int ac, char **av);
51*3b2bd0f6Slogwang
52*3b2bd0f6Slogwang const struct ngcmd config_cmd = {
53*3b2bd0f6Slogwang ConfigCmd,
54*3b2bd0f6Slogwang "config <path> [arguments]",
55*3b2bd0f6Slogwang "get or set configuration of node at <path>",
56*3b2bd0f6Slogwang NULL,
57*3b2bd0f6Slogwang { NULL }
58*3b2bd0f6Slogwang };
59*3b2bd0f6Slogwang
60*3b2bd0f6Slogwang static int
ConfigCmd(int ac,char ** av)61*3b2bd0f6Slogwang ConfigCmd(int ac, char **av)
62*3b2bd0f6Slogwang {
63*3b2bd0f6Slogwang u_char sbuf[sizeof(struct ng_mesg) + NG_TEXTRESPONSE];
64*3b2bd0f6Slogwang struct ng_mesg *const resp = (struct ng_mesg *) sbuf;
65*3b2bd0f6Slogwang char *const status = (char *) resp->data;
66*3b2bd0f6Slogwang char *path;
67*3b2bd0f6Slogwang char buf[NG_TEXTRESPONSE];
68*3b2bd0f6Slogwang int nostat = 0, i;
69*3b2bd0f6Slogwang
70*3b2bd0f6Slogwang /* Get arguments */
71*3b2bd0f6Slogwang if (ac < 2)
72*3b2bd0f6Slogwang return (CMDRTN_USAGE);
73*3b2bd0f6Slogwang path = av[1];
74*3b2bd0f6Slogwang
75*3b2bd0f6Slogwang *buf = '\0';
76*3b2bd0f6Slogwang for (i = 2; i < ac; i++) {
77*3b2bd0f6Slogwang if (i != 2)
78*3b2bd0f6Slogwang strcat(buf, " ");
79*3b2bd0f6Slogwang strcat(buf, av[i]);
80*3b2bd0f6Slogwang }
81*3b2bd0f6Slogwang
82*3b2bd0f6Slogwang /* Get node config summary */
83*3b2bd0f6Slogwang if (*buf != '\0')
84*3b2bd0f6Slogwang i = NgSendMsg(csock, path, NGM_GENERIC_COOKIE,
85*3b2bd0f6Slogwang NGM_TEXT_CONFIG, buf, strlen(buf) + 1);
86*3b2bd0f6Slogwang else
87*3b2bd0f6Slogwang i = NgSendMsg(csock, path, NGM_GENERIC_COOKIE,
88*3b2bd0f6Slogwang NGM_TEXT_CONFIG, NULL, 0);
89*3b2bd0f6Slogwang if (i < 0) {
90*3b2bd0f6Slogwang switch (errno) {
91*3b2bd0f6Slogwang case EINVAL:
92*3b2bd0f6Slogwang nostat = 1;
93*3b2bd0f6Slogwang break;
94*3b2bd0f6Slogwang default:
95*3b2bd0f6Slogwang warn("send msg");
96*3b2bd0f6Slogwang return (CMDRTN_ERROR);
97*3b2bd0f6Slogwang }
98*3b2bd0f6Slogwang } else {
99*3b2bd0f6Slogwang if (NgRecvMsg(csock, resp, sizeof(sbuf), NULL) < 0
100*3b2bd0f6Slogwang || (resp->header.flags & NGF_RESP) == 0)
101*3b2bd0f6Slogwang nostat = 1;
102*3b2bd0f6Slogwang }
103*3b2bd0f6Slogwang
104*3b2bd0f6Slogwang /* Show it */
105*3b2bd0f6Slogwang if (nostat)
106*3b2bd0f6Slogwang printf("No config available for \"%s\"\n", path);
107*3b2bd0f6Slogwang else
108*3b2bd0f6Slogwang printf("Config for \"%s\":\n%s\n", path, status);
109*3b2bd0f6Slogwang return (CMDRTN_OK);
110*3b2bd0f6Slogwang }
111*3b2bd0f6Slogwang
112