setdescription.c revision 072565371371d18a83c9ef57aaed59d0c97eec5b
1/*
2 * Copyright (c) 2016, Marie Helene Kvello-Aune
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * thislist of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation and/or
13 * other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
17 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29#include <err.h>
30#include <errno.h>
31#include <stdio.h>
32#include <stdlib.h>
33#include <string.h>
34#include <libifconfig.h>
35
36
37int
38main(int argc, char *argv[])
39{
40	char *ifname, *ifdescr, *curdescr;
41
42	if (argc != 3) {
43		errx(EINVAL, "Invalid number of arguments."
44		    " First argument should be interface name, second argument"
45		    " should be the description to set.");
46	}
47
48	/* We have a static number of arguments. Therefore we can do it simple. */
49	ifname = strdup(argv[1]);
50	ifdescr = strdup(argv[2]);
51	curdescr = NULL;
52
53	printf("Interface name: %s\n", ifname);
54
55	ifconfig_handle_t *lifh = ifconfig_open();
56	if (ifconfig_get_description(lifh, ifname, &curdescr) == 0) {
57		printf("Old description: %s\n", curdescr);
58	}
59
60	printf("New description: %s\n\n", ifdescr);
61
62	if (ifconfig_set_description(lifh, ifname, ifdescr) == 0) {
63		printf("New description successfully set.\n");
64	} else {
65		switch (ifconfig_err_errtype(lifh)) {
66		case SOCKET:
67			err(ifconfig_err_errno(lifh), "Socket error");
68			break;
69		case IOCTL:
70			err(ifconfig_err_errno(
71				    lifh), "IOCTL(%lu) error",
72			    ifconfig_err_ioctlreq(lifh));
73			break;
74		case OTHER:
75			err(ifconfig_err_errno(lifh), "Other error");
76			break;
77		}
78	}
79
80	free(ifname);
81	free(ifdescr);
82	free(curdescr);
83	ifname = NULL;
84	ifdescr = NULL;
85	curdescr = NULL;
86
87	ifconfig_close(lifh);
88	return (0);
89}
90