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 * 3. Neither the name of the copyright holder nor the names of its contributors 16 * may be used to endorse or promote products derived from this software without 17 * specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 25 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 26 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * 30 * $FreeBSD$ 31 */ 32 33 #include <err.h> 34 #include <errno.h> 35 #include <stdio.h> 36 #include <stdlib.h> 37 #include <string.h> 38 #include <libifconfig.h> 39 40 41 int main(int argc, char *argv[]) 42 { 43 if (argc != 3) { 44 errx(EINVAL, "Invalid number of arguments." 45 " First argument should be interface name, second argument" 46 " should be the description to set."); 47 } 48 49 char *ifname, *ifdescr, *curdescr; 50 /* We have a static number of arguments. Therefore we can do it simple. */ 51 ifname = strdup(argv[1]); 52 ifdescr = strdup(argv[2]); 53 curdescr = NULL; 54 55 printf("Interface name: %s\n", ifname); 56 57 ifconfig_handle_t *lifh = ifconfig_open(); 58 if (ifconfig_get_description(lifh, ifname, &curdescr) == 0) { 59 printf("Old description: %s\n", curdescr); 60 } 61 62 printf("New description: %s\n\n", ifdescr); 63 64 if (ifconfig_set_description(lifh, ifname, ifdescr) == 0) { 65 printf("New description successfully set.\n"); 66 } else { 67 switch (ifconfig_err_errtype(lifh)) { 68 case SOCKET: 69 err(ifconfig_err_errno(lifh), "Socket error"); 70 break; 71 case IOCTL: 72 err(ifconfig_err_errno( 73 lifh), "IOCTL(%lu) error", 74 ifconfig_err_ioctlreq(lifh)); 75 break; 76 case OTHER: 77 err(ifconfig_err_errno(lifh), "Other error"); 78 break; 79 } 80 } 81 82 free(ifname); 83 free(ifdescr); 84 free(curdescr); 85 ifname = NULL; 86 ifdescr = NULL; 87 curdescr = NULL; 88 89 ifconfig_close(lifh); 90 return (0); 91 } 92