lib/loopback.c

   1 /*
   2  * lib/loopback.c     This file contains the general hardware types.
   3  *
   4  * Version:     $Id: loopback.c,v 1.7 1999/09/27 11:00:48 philip Exp $
   5  *
   6  * Author:      Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
   7  *              Copyright 1993 MicroWalt Corporation
   8  *
   9  * Modifications:
  10  * 1998-07-01 - Arnaldo Carvalho de Melo - GNU gettext instead of catgets
  11  *
  12  *              This program is free software; you can redistribute it
  13  *              and/or  modify it under  the terms of  the GNU General
  14  *              Public  License as  published  by  the  Free  Software
  15  *              Foundation;  either  version 2 of the License, or  (at
  16  *              your option) any later version.
  17  */
  18 #include "config.h"
  19
  20 #include <sys/types.h>
  21 #include <sys/socket.h>
  22 #include <net/if_arp.h>
  23 #include <stdlib.h>
  24 #include <stdio.h>
  25 #include <errno.h>
  26 #include <ctype.h>
  27 #include <string.h>
  28 #include <unistd.h>
  29 #include "net-support.h"
  30 #include "pathnames.h"
  31 #include "intl.h"
  32 #include "util.h"
  33
  34 /* Display an UNSPEC address. */
  35 static char *pr_unspec(unsigned char *ptr)
  36 {
  37     static char buff[64];
  38     char *pos;
  39     unsigned int i;
  40
  41     pos = buff;
  42     for (i = 0; i < sizeof(struct sockaddr); i++) {
  43         pos += sprintf(pos, "%02X-", (*ptr++ & 0377));
  44     }
  45     buff[strlen(buff) - 1] = '\0';
  46     return (buff);
  47 }
  48
  49 struct hwtype unspec_hwtype =
  50 {
  51     "unspec", NULL, /*"UNSPEC", */ -1, 0,
  52     pr_unspec, NULL, NULL
  53 };
  54
  55 struct hwtype loop_hwtype =
  56 {
  57     "loop", NULL, /*"Local Loopback", */ ARPHRD_LOOPBACK, 0,
  58     NULL, NULL, NULL
  59 };