HardenedBSD/share/examples/libifconfig/setdescription.c
Alan Somers b1d757bc1d libifconfig: multiple feature additions
Added the ability to:

* Create virtual interfaces
* Create vlan interfaces
* Get interface fib
* Get interface groups
* Get interface status
* Get nd6 info
* Get media status
* Get additional ifaddr info in a convenient struct
* Get vhids
* Get carp info
* Get lagg and laggport status
* Iterate over all interfaces and ifaddrs

And add more examples, too.

Note that this is a backwards-incompatible change. But that's ok, because it's
a private library.

MFC after:	3 weeks
Sponsored by:	Spectra Logic Corp
Differential Revision:	https://reviews.freebsd.org/D14463
2018-02-23 03:11:43 +00:00

99 lines
2.8 KiB
C

/*
* Copyright (c) 2016-2017, Marie Helene Kvello-Aune
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* thislist of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <arpa/inet.h>
#include <net/if.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libifconfig.h>
int
main(int argc, char *argv[])
{
char *ifname, *ifdescr, *curdescr;
ifconfig_handle_t *lifh;
if (argc != 3) {
errx(EINVAL, "Invalid number of arguments."
" First argument should be interface name, second argument"
" should be the description to set.");
}
/* We have a static number of arguments. Therefore we can do it simple. */
ifname = strdup(argv[1]);
ifdescr = strdup(argv[2]);
curdescr = NULL;
printf("Interface name: %s\n", ifname);
lifh = ifconfig_open();
if (lifh == NULL) {
errx(ENOMEM, "Failed to open libifconfig handle.");
return (-1);
}
if (ifconfig_get_description(lifh, ifname, &curdescr) == 0) {
printf("Old description: %s\n", curdescr);
}
printf("New description: %s\n\n", ifdescr);
if (ifconfig_set_description(lifh, ifname, ifdescr) == 0) {
printf("New description successfully set.\n");
} else {
switch (ifconfig_err_errtype(lifh)) {
case SOCKET:
err(ifconfig_err_errno(lifh), "Socket error");
break;
case IOCTL:
err(ifconfig_err_errno(
lifh), "IOCTL(%lu) error",
ifconfig_err_ioctlreq(lifh));
break;
default:
err(ifconfig_err_errno(lifh), "Other error");
break;
}
}
free(ifname);
free(ifdescr);
free(curdescr);
ifname = NULL;
ifdescr = NULL;
curdescr = NULL;
ifconfig_close(lifh);
return (0);
}