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/*
* lib/hippi.c This file contains an implementation of the "HIPPI"
* support functions for the NET-2 base distribution.
*
* Version: $Id$
*
* Author: Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
* Copyright 1993 MicroWalt Corporation
*
* Modified for HIPPI by Jes Sorensen, <Jes.Sorensen@cern.ch>
*
* This program is free software; you can redistribute it
* and/or modify it under the terms of the GNU General
* Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at
* your option) any later version.
*/
#include "config.h"
#if HAVE_HWHIPPI
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if_arp.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <ctype.h>
#include <string.h>
#include <unistd.h>
#include "net-support.h"
#include "pathnames.h"
#include "intl.h"
#include "util.h"
/*
* HIPPI magic constants.
*/
#define HIPPI_ALEN 6 /* Bytes in one HIPPI hw-addr */
#ifndef ARPHRD_HIPPI
#define ARPHRD_HIPPI 780
#warning "ARPHRD_HIPPI is not defined in <net/if_arp.h>. Using private value 708"
#endif
extern struct hwtype hippi_hwtype;
/* Display an HIPPI address in readable format. */
static const char *pr_hippi(const char *ptr)
{
static char buff[64];
sprintf(buff, "%02X:%02X:%02X:%02X:%02X:%02X",
(ptr[0] & 0377), (ptr[1] & 0377), (ptr[2] & 0377),
(ptr[3] & 0377), (ptr[4] & 0377), (ptr[5] & 0377)
);
return (buff);
}
/* Input an HIPPI address and convert to binary. */
static int in_hippi(char *bufp, struct sockaddr *sap)
{
unsigned char *ptr;
char c, *orig;
int i, val;
sap->sa_family = hippi_hwtype.type;
ptr = sap->sa_data;
i = 0;
orig = bufp;
while ((*bufp != '\0') && (i < HIPPI_ALEN)) {
val = 0;
c = *bufp++;
if (isdigit(c))
val = c - '0';
else if (c >= 'a' && c <= 'f')
val = c - 'a' + 10;
else if (c >= 'A' && c <= 'F')
val = c - 'A' + 10;
else {
#ifdef DEBUG
fprintf(stderr, _("in_hippi(%s): invalid hippi address!\n"), orig);
#endif
errno = EINVAL;
return (-1);
}
val <<= 4;
c = *bufp++;
if (isdigit(c))
val |= c - '0';
else if (c >= 'a' && c <= 'f')
val |= c - 'a' + 10;
else if (c >= 'A' && c <= 'F')
val |= c - 'A' + 10;
else {
#ifdef DEBUG
fprintf(stderr, _("in_hippi(%s): invalid hippi address!\n"), orig);
#endif
errno = EINVAL;
return (-1);
}
*ptr++ = (unsigned char) (val & 0377);
i++;
/* We might get a semicolon here - not required. */
if (*bufp == ':') {
if (i == HIPPI_ALEN) {
#ifdef DEBUG
fprintf(stderr, _("in_hippi(%s): trailing : ignored!\n"), orig)
#endif
; /* nothing */
}
bufp++;
}
}
/* That's it. Any trailing junk? */
if ((i == HIPPI_ALEN) && (*bufp != '\0')) {
#ifdef DEBUG
fprintf(stderr, _("in_hippi(%s): trailing junk!\n"), orig);
errno = EINVAL;
return (-1);
#endif
}
#ifdef DEBUG
fprintf(stderr, "in_hippi(%s): %s\n", orig, pr_hippi(sap->sa_data));
#endif
return (0);
}
struct hwtype hippi_hwtype =
{
"hippi", NULL, /*"HIPPI", */ ARPHRD_HIPPI, HIPPI_ALEN,
pr_hippi, in_hippi, NULL, 0
};
#endif /* HAVE_HWHIPPI */
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