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net-tools/lib/hw.c
Mike Frysinger 742e62800e lib: hw: constify hwtype 
Most callers never modify this structure, so constify it everywhere.
2015-08-25 00:25:05 -04:00

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/*
* lib/hw.c This file contains the top-level part of the hardware
* support functions module.
*
* Version: $Id: hw.c,v 1.19 2008/10/03 01:52:04 ecki Exp $
*
* Maintainer: Bernd 'eckes' Eckenfels, <net-tools@lina.inka.de>
*
* Author: Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
* Copyright 1993 MicroWalt Corporation
*
*980701 {1.21} Arnaldo C. Melo GNU gettext instead of catgets
*
* 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 <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 "config.h"
#include "net-support.h"
#include "pathnames.h"
#include "intl.h"
extern struct hwtype unspec_hwtype;
extern struct hwtype loop_hwtype;
extern struct hwtype slip_hwtype;
extern struct hwtype cslip_hwtype;
extern struct hwtype slip6_hwtype;
extern struct hwtype cslip6_hwtype;
extern struct hwtype adaptive_hwtype;
extern struct hwtype strip_hwtype;
extern struct hwtype ether_hwtype;
extern struct hwtype fddi_hwtype;
extern struct hwtype hippi_hwtype;
extern struct hwtype tr_hwtype;
#ifdef ARPHRD_IEEE802_TR
extern struct hwtype tr_hwtype1;
#endif
extern struct hwtype ax25_hwtype;
extern struct hwtype rose_hwtype;
extern struct hwtype netrom_hwtype;
extern struct hwtype x25_hwtype;
extern struct hwtype tunnel_hwtype;
extern struct hwtype ash_hwtype;
extern struct hwtype ppp_hwtype;
extern struct hwtype arcnet_hwtype;
extern struct hwtype dlci_hwtype;
extern struct hwtype frad_hwtype;
extern struct hwtype hdlc_hwtype;
extern struct hwtype lapb_hwtype;
extern struct hwtype sit_hwtype;
extern struct hwtype irda_hwtype;
extern struct hwtype ec_hwtype;
extern struct hwtype ib_hwtype;
extern struct hwtype eui64_hwtype;
static const struct hwtype * const hwtypes[] =
{
&loop_hwtype,
#if HAVE_HWSLIP
&slip_hwtype,
&cslip_hwtype,
&slip6_hwtype,
&cslip6_hwtype,
&adaptive_hwtype,
#endif
#if HAVE_HWSTRIP
&strip_hwtype,
#endif
#if HAVE_HWASH
&ash_hwtype,
#endif
#if HAVE_HWETHER
&ether_hwtype,
#endif
#if HAVE_HWTR
&tr_hwtype,
#ifdef ARPHRD_IEEE802_TR
&tr_hwtype1,
#endif
#endif
#if HAVE_HWAX25
&ax25_hwtype,
#endif
#if HAVE_HWNETROM
&netrom_hwtype,
#endif
#if HAVE_HWROSE
&rose_hwtype,
#endif
#if HAVE_HWTUNNEL
&tunnel_hwtype,
#endif
#if HAVE_HWPPP
&ppp_hwtype,
#endif
#if HAVE_HWHDLCLAPB
&hdlc_hwtype,
&lapb_hwtype,
#endif
#if HAVE_HWARC
&arcnet_hwtype,
#endif
#if HAVE_HWFR
&dlci_hwtype,
&frad_hwtype,
#endif
#if HAVE_HWSIT
&sit_hwtype,
#endif
#if HAVE_HWFDDI
&fddi_hwtype,
#endif
#if HAVE_HWHIPPI
&hippi_hwtype,
#endif
#if HAVE_HWIRDA
&irda_hwtype,
#endif
#if HAVE_HWEC
&ec_hwtype,
#endif
#if HAVE_HWX25
&x25_hwtype,
#endif
#if HAVE_HWIB
&ib_hwtype,
#endif
#if HAVE_HWEUI64
&eui64_hwtype,
#endif
&unspec_hwtype,
NULL
};
static short sVhwinit = 0;
static void hwinit(void)
{
loop_hwtype.title = _("Local Loopback");
unspec_hwtype.title = _("UNSPEC");
#if HAVE_HWSLIP
slip_hwtype.title = _("Serial Line IP");
cslip_hwtype.title = _("VJ Serial Line IP");
slip6_hwtype.title = _("6-bit Serial Line IP");
cslip6_hwtype.title = _("VJ 6-bit Serial Line IP");
adaptive_hwtype.title = _("Adaptive Serial Line IP");
#endif
#if HAVE_HWETHER
ether_hwtype.title = _("Ethernet");
#endif
#if HAVE_HWASH
ash_hwtype.title = _("Ash");
#endif
#if HAVE_HWFDDI
fddi_hwtype.title = _("Fiber Distributed Data Interface");
#endif
#if HAVE_HWHIPPI
hippi_hwtype.title = _("HIPPI");
#endif
#if HAVE_HWAX25
ax25_hwtype.title = _("AMPR AX.25");
#endif
#if HAVE_HWROSE
rose_hwtype.title = _("AMPR ROSE");
#endif
#if HAVE_HWNETROM
netrom_hwtype.title = _("AMPR NET/ROM");
#endif
#if HAVE_HWX25
x25_hwtype.title = _("generic X.25");
#endif
#if HAVE_HWTUNNEL
tunnel_hwtype.title = _("IPIP Tunnel");
#endif
#if HAVE_HWPPP
ppp_hwtype.title = _("Point-to-Point Protocol");
#endif
#if HAVE_HWHDLCLAPB
hdlc_hwtype.title = _("(Cisco)-HDLC");
lapb_hwtype.title = _("LAPB");
#endif
#if HAVE_HWARC
arcnet_hwtype.title = _("ARCnet");
#endif
#if HAVE_HWFR
dlci_hwtype.title = _("Frame Relay DLCI");
frad_hwtype.title = _("Frame Relay Access Device");
#endif
#if HAVE_HWSIT
sit_hwtype.title = _("IPv6-in-IPv4");
#endif
#if HAVE_HWIRDA
irda_hwtype.title = _("IrLAP");
#endif
#if HAVE_HWTR
tr_hwtype.title = _("16/4 Mbps Token Ring");
#ifdef ARPHRD_IEEE802_TR
tr_hwtype1.title = _("16/4 Mbps Token Ring (New)") ;
#endif
#endif
#if HAVE_HWEC
ec_hwtype.title = _("Econet");
#endif
#if HAVE_HWIB
ib_hwtype.title = _("InfiniBand");
#endif
#if HAVE_HWEUI64
eui64_hwtype.title = _("Generic EUI-64");
#endif
sVhwinit = 1;
}
/* Check our hardware type table for this type. */
const struct hwtype *get_hwtype(const char *name)
{
const struct hwtype * const *hwp;
if (!sVhwinit)
hwinit();
hwp = hwtypes;
while (*hwp != NULL) {
if (!strcmp((*hwp)->name, name))
return (*hwp);
hwp++;
}
return (NULL);
}
/* Check our hardware type table for this type. */
const struct hwtype *get_hwntype(int type)
{
const struct hwtype * const *hwp;
if (!sVhwinit)
hwinit();
hwp = hwtypes;
while (*hwp != NULL) {
if ((*hwp)->type == type)
return (*hwp);
hwp++;
}
return (NULL);
}
/* type: 0=all, 1=ARPable */
void print_hwlist(int type) {
int count = 0;
const char * txt;
const struct hwtype * const *hwp;
if (!sVhwinit)
hwinit();
hwp = hwtypes;
while (*hwp != NULL) {
if (((type == 1) && ((*hwp)->alen == 0)) || ((*hwp)->type == -1)) {
hwp++; continue;
}
if ((count % 3) == 0) fprintf(stderr,count?"\n ":" ");
txt = (*hwp)->name; if (!txt) txt = "..";
fprintf(stderr,"%s (%s) ",txt,(*hwp)->title);
count++;
hwp++;
}
fprintf(stderr,"\n");
}
/* return 1 if address is all zeros */
int hw_null_address(const struct hwtype *hw, void *ap)
{
unsigned int i;
unsigned char *address = (unsigned char *)ap;
for (i = 0; i < hw->alen; i++)
if (address[i])
return 0;
return 1;
}
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