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/*
* lib/x25.c This file contains an implementation of the "X.25"
* support functions for the NET-3 base distribution.
*
* Version: @(#)x25.c 1.00 08/15/98
*
* Author: Stephane Fillod, <sfillod@charybde.gyptis.frmug.org>
* based on ax25.c by:
* 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_AFX25 || HAVE_HWX25
#include <sys/types.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <linux/x25.h>
#include <net/if_arp.h> /* ARPHRD_X25 */
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>
#include "net-support.h"
#include "pathnames.h"
#define EXTERN
#if 0
#include "net-locale.h"
#endif
#include "intl.h"
#include "util.h"
static char X25_errmsg[128];
extern struct aftype x25_aftype;
/* is in net/x25.h, not in the public header file linux/x25.h. Why?*/
#ifndef X25_ADDR_LEN
#define X25_ADDR_LEN 16
#endif
static const char *
X25_print(const char *ptr)
{
static char buff[X25_ADDR_LEN+1];
strncpy(buff, ptr, X25_ADDR_LEN);
buff[X25_ADDR_LEN] = '\0';
return(buff);
}
/* Display an X.25 socket address. */
static const char *
X25_sprint(const struct sockaddr_storage *sasp, int numeric)
{
const struct sockaddr *sap = (const struct sockaddr *)sasp;
if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
return( _("[NONE SET]"));
return(X25_print(((struct sockaddr_x25 *)sasp)->sx25_addr.x25_addr));
}
/*
* return the sigdigits of the address
*/
static int
X25_input(int type, char *bufp, struct sockaddr_storage *sasp)
{
struct sockaddr *sap = (struct sockaddr *)sasp;
char *ptr;
char *p;
unsigned int sigdigits;
sap->sa_family = x25_aftype.af;
ptr = ((struct sockaddr_x25 *)sap)->sx25_addr.x25_addr;
/* Address the correct length ? */
if (strlen(bufp)>18) {
safe_strncpy(X25_errmsg,
_("Address can't exceed eighteen digits with sigdigits"),
sizeof(X25_errmsg));
#ifdef DEBUG
fprintf(stderr, "x25_input(%s): %s !\n", bufp, X25_errmsg);
#endif
errno = EINVAL;
return(-1);
}
if ((p = strchr(bufp, '/')) != NULL) {
*p = '\0';
sigdigits = atoi(p + 1);
} else {
sigdigits = strlen(bufp);
}
if (strlen(bufp) < 1 || strlen(bufp) > 15 || sigdigits > strlen(bufp)) {
if (p != NULL)
*p = '/';
safe_strncpy(X25_errmsg, _("Invalid address"), sizeof(X25_errmsg));
#ifdef DEBUG
fprintf(stderr, "x25_input(%s): %s !\n", bufp, X25_errmsg);
#endif
errno = EINVAL;
return(-1);
}
strncpy(ptr, bufp, sigdigits+1);
/* All done. */
#ifdef DEBUG
fprintf(stderr, "x25_input(%s)\n", bufp);
#endif
return sigdigits;
}
/* Display an error message. */
static void
X25_herror(const char *text)
{
if (text == NULL) fprintf(stderr, "%s\n", X25_errmsg);
else fprintf(stderr, "%s: %s\n", text, X25_errmsg);
}
static int
X25_hinput(char *bufp, struct sockaddr_storage *sasp)
{
struct sockaddr *sap = (struct sockaddr *)sasp;
if (X25_input(0, bufp, sasp) < 0) return(-1);
sap->sa_family = ARPHRD_X25;
return(0);
}
struct hwtype x25_hwtype = {
"x25", NULL, /*"CCITT X.25",*/ ARPHRD_X25, X25_ADDR_LEN,
X25_print, X25_hinput, NULL
};
struct aftype x25_aftype =
{
"x25", NULL, /*"CCITT X.25", */ AF_X25, X25_ADDR_LEN,
X25_print, X25_sprint, X25_input, X25_herror,
X25_rprint, X25_rinput, NULL /* getmask */,
-1,
"/proc/net/x25"
};
#endif /* HAVE_xxX25 */
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