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/*
* lib/ash.c This file contains an implementation of the Ash
* support functions for the NET-2 base distribution.
* $Id: ash.c,v 1.6 1998/11/15 20:09:16 freitag Exp $
*/
#include "config.h"
#if HAVE_HWASH
#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"
#ifndef ARPHRD_ASH
#error No support for Ash on this system
#endif
#define ASH_ALEN 64
extern struct hwtype ash_hwtype;
/* Display an Ash address in readable format. */
static char *pr_ash(unsigned char *ptr)
{
static char buff[128];
char *p = buff;
unsigned int i = 0;
p[0] = '[';
p++;
while (ptr[i] != 0xc9 && ptr[i] != 0xff && (i < ASH_ALEN))
sprintf(p++, "%1x", ptr[i++]);
*(p++) = ']';
*p = 0;
return buff;
}
/* Display an Ash socket address. */
static char *pr_sash(struct sockaddr *sap)
{
static char buf[64];
if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
return strncpy(buf, "[NONE SET]", 64);
return pr_ash(sap->sa_data);
}
static unsigned char hamming[16] =
{
0x15, 0x02, 0x49, 0x5e, 0x64, 0x73, 0x38, 0x2f,
0xd0, 0xc7, 0x8c, 0x9b, 0xa1, 0xb6, 0xfd, 0xea
};
static int in_ash(char *bufp, struct sockaddr *sap)
{
unsigned char *ptr;
unsigned int i = 0;
sap->sa_family = ash_hwtype.type;
ptr = sap->sa_data;
while (bufp && i < ASH_ALEN) {
char *next;
int hop = strtol(bufp, &next, 16);
ptr[i++] = hamming[hop];
switch (*next) {
case ':':
bufp = next + 1;
break;
case 0:
bufp = NULL;
break;
default:
fprintf(stderr, _("Malformed Ash address"));
memset(ptr, 0xc9, ASH_ALEN);
return -1;
}
}
while (i < ASH_ALEN)
ptr[i++] = 0xc9;
return 0;
}
struct hwtype ash_hwtype =
{
"ash", NULL, ARPHRD_ASH, ASH_ALEN,
pr_ash, pr_sash, in_ash, NULL
};
#endif
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