Differential D7529 Diff 19347 lib/libifconfig/examples/setdescription.c

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lib/libifconfig/examples/setdescription.c

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				/*
				* Copyright (c) 2016, 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.
				*
				* 3. Neither the name of the copyright holder nor the names of its contributors
				* may be used to endorse or promote products derived from this software without
				* specific prior written permission.
				*
				* 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.
				*/

				#include <err.h>
				#include <errno.h>
				#include <stdio.h>
				#include <stdlib.h>
				#include <string.h>
				#include <libifconfig.h>


				int main(int argc, char *argv[])
				{
				if (argc != 3) {
				errx(EINVAL, "Invalid number of arguments."
				" First argument should be interface name, second argument"
				" should be the description to set.");
				}

				char ifname, ifdescr, *curdescr;
				/* We have a static number of arguments. Therefore we can do it simple. */
				bcrUnsubmitted Done Inline Actions Superfluous space after "do". bcr: Superfluous space after "do".
				ifname = strdup(argv[1]);
				ifdescr = strdup(argv[2]);
				curdescr = NULL;

				printf("Interface name: %s\n", ifname);

				libifc_handle_t *lifh = libifc_open();
				if (libifc_get_description(lifh, ifname, &curdescr) == 0) {
				printf("Old description: %s\n", curdescr);
				}

				printf("New description: %s\n\n", ifdescr);

				if (libifc_set_description(lifh, ifname, ifdescr) == 0) {
				printf("New description successfully set.\n");
				} else {
				switch (libifc_err_errtype(lifh)) {
				case SOCKET:
				err(libifc_err_errno(lifh), "Socket error");
				break;
				case IOCTL:
				err(libifc_err_errno(
				lifh), "IOCTL(%lu) error",
				libifc_err_ioctlreq(lifh));
				break;
				case OTHER:
				err(libifc_err_errno(lifh), "Other error");
				break;
				}
				}

				free(ifname);
				free(ifdescr);
				free(curdescr);
				ifname = NULL;
				ifdescr = NULL;
				curdescr = NULL;

				libifc_close(lifh);
				return (0);
				}