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/*
* lib/arcnet.c This file contains an implementation of the "ARCnet"
* support functions for the NET-2 base distribution.
*
* Version: $Id: arcnet.c,v 1.6 2000/03/05 11:26:02 philip Exp $
*
* Author: Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
* Copyright 1993 MicroWalt Corporation
*
* 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_HWARC
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if_arp.h>
#include <linux/if_ether.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"
extern struct hwtype arcnet_hwtype;
/* Display an ARCnet address in readable format. */
static const char *pr_arcnet(const char *ptr)
{
static char buff[64];
snprintf(buff, sizeof(buff), "%02X", (ptr[0] & 0377));
return (buff);
}
/* Input an ARCnet address and convert to binary. */
static int in_arcnet(char *bufp, struct sockaddr *sap)
{
unsigned char *ptr;
char c, *orig;
int i, val;
sap->sa_family = arcnet_hwtype.type;
ptr = sap->sa_data;
i = 0;
orig = bufp;
while ((*bufp != '\0') && (i < 1)) {
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_arcnet(%s): invalid arcnet 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_arcnet(%s): invalid arcnet 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 == ETH_ALEN) {
#ifdef DEBUG
fprintf(stderr, _("in_arcnet(%s): trailing : ignored!\n"),
orig)
#endif
; /* nothing */
}
bufp++;
}
}
/* That's it. Any trailing junk? */
if ((i == ETH_ALEN) && (*bufp != '\0')) {
#ifdef DEBUG
fprintf(stderr, _("in_arcnet(%s): trailing junk!\n"), orig);
errno = EINVAL;
return (-1);
#endif
}
#ifdef DEBUG
fprintf(stderr, "in_arcnet(%s): %s\n", orig, pr_arcnet(sap->sa_data));
#endif
return (0);
}
struct hwtype arcnet_hwtype =
{
"arcnet", NULL, /*"2.5Mbps ARCnet", */ ARPHRD_ARCNET, 1,
pr_arcnet, in_arcnet, NULL
};
#endif /* HAVE_HWARC */
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