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libpdel

    1: 
    2: /*
    3:  * Copyright (c) 2001-2002 Packet Design, LLC.
    4:  * All rights reserved.
    5:  * 
    6:  * Subject to the following obligations and disclaimer of warranty,
    7:  * use and redistribution of this software, in source or object code
    8:  * forms, with or without modifications are expressly permitted by
    9:  * Packet Design; provided, however, that:
   10:  * 
   11:  *    (i)  Any and all reproductions of the source or object code
   12:  *         must include the copyright notice above and the following
   13:  *         disclaimer of warranties; and
   14:  *    (ii) No rights are granted, in any manner or form, to use
   15:  *         Packet Design trademarks, including the mark "PACKET DESIGN"
   16:  *         on advertising, endorsements, or otherwise except as such
   17:  *         appears in the above copyright notice or in the software.
   18:  * 
   19:  * THIS SOFTWARE IS BEING PROVIDED BY PACKET DESIGN "AS IS", AND
   20:  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, PACKET DESIGN MAKES NO
   21:  * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING
   22:  * THIS SOFTWARE, INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED
   23:  * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,
   24:  * OR NON-INFRINGEMENT.  PACKET DESIGN DOES NOT WARRANT, GUARANTEE,
   25:  * OR MAKE ANY REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS
   26:  * OF THE USE OF THIS SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY,
   27:  * RELIABILITY OR OTHERWISE.  IN NO EVENT SHALL PACKET DESIGN BE
   28:  * LIABLE FOR ANY DAMAGES RESULTING FROM OR ARISING OUT OF ANY USE
   29:  * OF THIS SOFTWARE, INCLUDING WITHOUT LIMITATION, ANY DIRECT,
   30:  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, PUNITIVE, OR CONSEQUENTIAL
   31:  * DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, LOSS OF
   32:  * USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY THEORY OF
   33:  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   34:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
   35:  * THE USE OF THIS SOFTWARE, EVEN IF PACKET DESIGN IS ADVISED OF
   36:  * THE POSSIBILITY OF SUCH DAMAGE.
   37:  *
   38:  * Author: Archie Cobbs <archie@freebsd.org>
   39:  */
   40: 
   41: #include <sys/types.h>
   42: #include <sys/socket.h>
   43: #include <net/ethernet.h>
   44: #include <netinet/in.h>
   45: #include <arpa/inet.h>
   46: 
   47: #include <stdio.h>
   48: #include <unistd.h>
   49: #include <err.h>
   50: 
   51: #include <pdel/net/if_util.h>
   52: 
   53: int
   54: main(int ac, char **av)
   55: {
   56: 	struct ether_addr *ea;
   57: 	const u_char *ether = NULL;
   58: 	struct in_addr ip;
   59: 	int publish = 0;
   60: 	int temp = 0;
   61: 	int ch;
   62: 
   63: 	while ((ch = getopt(ac, av, "tp")) != -1) {
   64: 		switch (ch) {
   65: 		case 't':
   66: 			temp = 1;
   67: 			break;
   68: 		case 'p':
   69: 			publish = 1;
   70: 			break;
   71: 		default:
   72: 			goto usage;
   73: 		}
   74: 	}
   75: 	ac -= optind;
   76: 	av += optind;
   77: 
   78: 	/* set command */
   79: 	if ((ac == 2 || ac == 3) && strcmp(av[0], "set") == 0) {
   80: 		if (ac == 3) {
   81: 			if ((ea = ether_aton(av[2])) == NULL)
   82: 				goto usage;
   83: 			ether = ea->octet;
   84: 		}
   85: 		if (!inet_aton(av[1], &ip))
   86: 			goto usage;
   87: 		if (if_set_arp(ip, ether, temp, publish) == -1)
   88: 			err(1, "if_set_arp");
   89: 		return (0);
   90: 	}
   91: 
   92: 	/* flush command */
   93: 	if (ac == 1 && strcmp(av[0], "flush") == 0) {
   94: 		if (if_flush_arp() == -1)
   95: 			err(1, "if_flush_arp");
   96: 		return (0);
   97: 	}
   98: 
   99: 	/* get command */
  100: 	if (ac == 2 && strcmp(av[0], "get") == 0) {
  101: 		struct ether_addr mac;
  102: 
  103: 		if (!inet_aton(av[1], &ip))
  104: 			goto usage;
  105: 		if (if_get_arp(ip, (u_char *)&mac) == -1)
  106: 			err(1, "%s", inet_ntoa(ip));
  107: 		printf("%s is at %s\n", inet_ntoa(ip), ether_ntoa(&mac));
  108: 		return (0);
  109: 	}
  110: 
  111: usage:
  112: 	/* Unknown usage */
  113: 	(void)fprintf(stderr, "Usage: arptest"
  114: 	    " < [-tp] set ip [ether] | flush | get ip >\n");
  115: 	exit(1);
  116: }
  117: