1 /*
2 * Copyright (c) 2016-2017, 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 <arpa/inet.h>
30 #include <net/if.h>
31
32 #include <err.h>
33 #include <errno.h>
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <string.h>
37 #include <libifconfig.h>
38
39
40 int
main(int argc,char * argv[])41 main(int argc, char *argv[])
42 {
43 char *ifname, *ifdescr, *curdescr;
44 ifconfig_handle_t *lifh;
45
46 if (argc != 3) {
47 errx(EINVAL, "Invalid number of arguments."
48 " First argument should be interface name, second argument"
49 " should be the description to set.");
50 }
51
52 /* We have a static number of arguments. Therefore we can do it simple. */
53 ifname = strdup(argv[1]);
54 ifdescr = strdup(argv[2]);
55 curdescr = NULL;
56
57 printf("Interface name: %s\n", ifname);
58
59 lifh = ifconfig_open();
60 if (lifh == NULL) {
61 errx(ENOMEM, "Failed to open libifconfig handle.");
62 return (-1);
63 }
64
65 if (ifconfig_get_description(lifh, ifname, &curdescr) == 0) {
66 printf("Old description: %s\n", curdescr);
67 }
68
69 printf("New description: %s\n\n", ifdescr);
70
71 if (ifconfig_set_description(lifh, ifname, ifdescr) == 0) {
72 printf("New description successfully set.\n");
73 } else {
74 switch (ifconfig_err_errtype(lifh)) {
75 case SOCKET:
76 err(ifconfig_err_errno(lifh), "Socket error");
77 break;
78 case IOCTL:
79 err(ifconfig_err_errno(
80 lifh), "IOCTL(%lu) error",
81 ifconfig_err_ioctlreq(lifh));
82 break;
83 default:
84 err(ifconfig_err_errno(lifh), "Other error");
85 break;
86 }
87 }
88
89 free(ifname);
90 free(ifdescr);
91 free(curdescr);
92 ifname = NULL;
93 ifdescr = NULL;
94 curdescr = NULL;
95
96 ifconfig_close(lifh);
97 return (0);
98 }
99