xref: /dragonfly/usr.sbin/ngctl/config.c (revision 335b9e93)
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  * $FreeBSD: src/usr.sbin/ngctl/config.c,v 1.2.2.1 2001/01/09 06:52:25 phk Exp $
37  * $DragonFly: src/usr.sbin/ngctl/config.c,v 1.4 2005/03/16 05:19:11 joerg Exp $
38  */
39 
40 #include "ngctl.h"
41 
42 #define NOCONFIG	"<no config>"
43 
44 static int ConfigCmd(int ac, const char **av);
45 
46 const struct ngcmd config_cmd = {
47 	ConfigCmd,
48 	"config <path> [arguments]",
49 	"get or set configuration of node at <path>",
50 	NULL,
51 	{ NULL }
52 };
53 
54 static int
55 ConfigCmd(int ac, const char **av)
56 {
57 	u_char sbuf[sizeof(struct ng_mesg) + NG_TEXTRESPONSE];
58 	struct ng_mesg *const resp = (struct ng_mesg *) sbuf;
59 	char *const status = (char *) resp->data;
60 	const char *path;
61 	char buf[NG_TEXTRESPONSE];
62 	int nostat = 0, i;
63 
64 	/* Get arguments */
65 	if (ac < 2)
66 		return(CMDRTN_USAGE);
67 	path = av[1];
68 
69 	*buf = '\0';
70 	for (i = 2; i < ac; i++) {
71 		if (i != 2)
72 			strcat(buf, " ");
73 		strcat(buf, av[i]);
74 	}
75 
76 	/* Get node config summary */
77 	if (*buf != '\0')
78 		i = NgSendMsg(csock, path, NGM_GENERIC_COOKIE,
79 	            NGM_TEXT_CONFIG, buf, strlen(buf) + 1);
80 	else
81 		i = NgSendMsg(csock, path, NGM_GENERIC_COOKIE,
82 	            NGM_TEXT_CONFIG, NULL, 0);
83 	if (i < 0) {
84 		switch (errno) {
85 		case EINVAL:
86 			nostat = 1;
87 			break;
88 		default:
89 			warn("send msg");
90 			return(CMDRTN_ERROR);
91 		}
92 	} else {
93 		if (NgRecvMsg(csock, resp, sizeof(sbuf), NULL) < 0
94 		    || (resp->header.flags & NGF_RESP) == 0)
95 			nostat = 1;
96 	}
97 
98 	/* Show it */
99 	if (nostat)
100 		printf("No config available for \"%s\"\n", path);
101 	else
102 		printf("Config for \"%s\":\n%s\n", path, status);
103 	return(CMDRTN_OK);
104 }
105