Move interface.c to networking directory since it's only used by ifconfig.
authorRob Landley <rob@landley.net>
Tue, 22 Nov 2005 07:52:54 +0000 (07:52 -0000)
committerRob Landley <rob@landley.net>
Tue, 22 Nov 2005 07:52:54 +0000 (07:52 -0000)
libbb/Makefile.in
libbb/interface.c [deleted file]
networking/Makefile.in
networking/interface.c [new file with mode: 0644]

index 37c25f96c45477574725632ffc59cf49c8173f9b..35541231bc4c05cf031b837894841261ed9b7124 100644 (file)
@@ -37,7 +37,6 @@ LIBBB_SRC-y:= \
        bb_echo.c
 
 LIBBB_SRC-$(CONFIG_FEATURE_SHADOWPASSWDS)+= pwd2spwd.c
-LIBBB_SRC-$(CONFIG_IFCONFIG)+=interface.c
 
 LIBBB_OBJS=$(patsubst %.c,$(LIBBB_DIR)%.o, $(LIBBB_SRC-y))
 
diff --git a/libbb/interface.c b/libbb/interface.c
deleted file mode 100644 (file)
index ce7d67d..0000000
+++ /dev/null
@@ -1,2093 +0,0 @@
-/*
- * stolen from net-tools-1.59 and stripped down for busybox by
- *                     Erik Andersen <andersen@codepoet.org>
- *
- * Heavily modified by Manuel Novoa III       Mar 12, 2001
- *
- * Pruned unused code using KEEP_UNUSED define.
- * Added print_bytes_scaled function to reduce code size.
- * Added some (potentially) missing defines.
- * Improved display support for -a and for a named interface.
- *
- * -----------------------------------------------------------
- *
- * ifconfig   This file contains an implementation of the command
- *              that either displays or sets the characteristics of
- *              one or more of the system's networking interfaces.
- *
- * Version:     $Id: interface.c,v 1.25 2004/08/26 21:45:21 andersen Exp $
- *
- * Author:      Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
- *              and others.  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.
- *
- * Patched to support 'add' and 'del' keywords for INET(4) addresses
- * by Mrs. Brisby <mrs.brisby@nimh.org>
- *
- * {1.34} - 19980630 - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
- *                     - gettext instead of catgets for i18n
- *          10/1998  - Andi Kleen. Use interface list primitives.
- *         20001008 - Bernd Eckenfels, Patch from RH for setting mtu
- *                     (default AF was wrong)
- */
-
-/* #define KEEP_UNUSED */
-
-/*
- *
- * Protocol Families.
- *
- */
-#define HAVE_AFINET 1
-#undef HAVE_AFIPX
-#undef HAVE_AFATALK
-#undef HAVE_AFNETROM
-#undef HAVE_AFX25
-#undef HAVE_AFECONET
-#undef HAVE_AFASH
-
-/*
- *
- * Device Hardware types.
- *
- */
-#define HAVE_HWETHER   1
-#define HAVE_HWPPP     1
-#undef HAVE_HWSLIP
-
-
-#include "inet_common.h"
-#include <stdio.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <ctype.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <net/if.h>
-#include <net/if_arp.h>
-#include "libbb.h"
-
-#ifdef CONFIG_FEATURE_IPV6
-# define HAVE_AFINET6 1
-#else
-# undef HAVE_AFINET6
-#endif
-
-#define _(x) x
-#define _PATH_PROCNET_DEV               "/proc/net/dev"
-#define _PATH_PROCNET_IFINET6           "/proc/net/if_inet6"
-#define new(p) ((p) = xcalloc(1,sizeof(*(p))))
-#define KRELEASE(maj,min,patch) ((maj) * 65536 + (min)*256 + (patch))
-
-#ifdef HAVE_HWSLIP
-#include <net/if_slip.h>
-#endif
-
-#if HAVE_AFINET6
-
-#ifndef _LINUX_IN6_H
-/*
- *    This is in linux/include/net/ipv6.h.
- */
-
-struct in6_ifreq {
-       struct in6_addr ifr6_addr;
-       uint32_t ifr6_prefixlen;
-       unsigned int ifr6_ifindex;
-};
-
-#endif
-
-#endif                                                 /* HAVE_AFINET6 */
-
-#if HAVE_AFIPX
-#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
-#include <netipx/ipx.h>
-#endif
-#endif
-
-/* Defines for glibc2.0 users. */
-#ifndef SIOCSIFTXQLEN
-#define SIOCSIFTXQLEN      0x8943
-#define SIOCGIFTXQLEN      0x8942
-#endif
-
-/* ifr_qlen is ifru_ivalue, but it isn't present in 2.0 kernel headers */
-#ifndef ifr_qlen
-#define ifr_qlen        ifr_ifru.ifru_mtu
-#endif
-
-#ifndef HAVE_TXQUEUELEN
-#define HAVE_TXQUEUELEN 1
-#endif
-
-#ifndef IFF_DYNAMIC
-#define IFF_DYNAMIC     0x8000 /* dialup device with changing addresses */
-#endif
-
-/* This structure defines protocol families and their handlers. */
-struct aftype {
-       const char *name;
-       const char *title;
-       int af;
-       int alen;
-       char *(*print) (unsigned char *);
-       char *(*sprint) (struct sockaddr *, int numeric);
-       int (*input) (int type, char *bufp, struct sockaddr *);
-       void (*herror) (char *text);
-       int (*rprint) (int options);
-       int (*rinput) (int typ, int ext, char **argv);
-
-       /* may modify src */
-       int (*getmask) (char *src, struct sockaddr * mask, char *name);
-
-       int fd;
-       char *flag_file;
-};
-
-#ifdef KEEP_UNUSED
-
-static int flag_unx;
-
-#ifdef HAVE_AFIPX
-static int flag_ipx;
-#endif
-#ifdef HAVE_AFX25
-static int flag_ax25;
-#endif
-#ifdef HAVE_AFATALK
-static int flag_ddp;
-#endif
-#ifdef HAVE_AFNETROM
-static int flag_netrom;
-#endif
-static int flag_inet;
-
-#ifdef HAVE_AFINET6
-static int flag_inet6;
-#endif
-#ifdef HAVE_AFECONET
-static int flag_econet;
-#endif
-#ifdef HAVE_AFX25
-static int flag_x25 = 0;
-#endif
-#ifdef HAVE_AFASH
-static int flag_ash;
-#endif
-
-
-static struct aftrans_t {
-       char *alias;
-       char *name;
-       int *flag;
-} aftrans[] = {
-
-#ifdef HAVE_AFX25
-       {
-       "ax25", "ax25", &flag_ax25},
-#endif
-       {
-       "ip", "inet", &flag_inet},
-#ifdef HAVE_AFINET6
-       {
-       "ip6", "inet6", &flag_inet6},
-#endif
-#ifdef HAVE_AFIPX
-       {
-       "ipx", "ipx", &flag_ipx},
-#endif
-#ifdef HAVE_AFATALK
-       {
-       "appletalk", "ddp", &flag_ddp},
-#endif
-#ifdef HAVE_AFNETROM
-       {
-       "netrom", "netrom", &flag_netrom},
-#endif
-       {
-       "inet", "inet", &flag_inet},
-#ifdef HAVE_AFINET6
-       {
-       "inet6", "inet6", &flag_inet6},
-#endif
-#ifdef HAVE_AFATALK
-       {
-       "ddp", "ddp", &flag_ddp},
-#endif
-       {
-       "unix", "unix", &flag_unx}, {
-       "tcpip", "inet", &flag_inet},
-#ifdef HAVE_AFECONET
-       {
-       "econet", "ec", &flag_econet},
-#endif
-#ifdef HAVE_AFX25
-       {
-       "x25", "x25", &flag_x25},
-#endif
-#ifdef HAVE_AFASH
-       {
-       "ash", "ash", &flag_ash},
-#endif
-       {
-       0, 0, 0}
-};
-
-static char afname[256] = "";
-#endif                                                 /* KEEP_UNUSED */
-
-#if HAVE_AFUNIX
-
-/* Display a UNIX domain address. */
-static char *UNIX_print(unsigned char *ptr)
-{
-       return (ptr);
-}
-
-
-/* Display a UNIX domain address. */
-static char *UNIX_sprint(struct sockaddr *sap, int numeric)
-{
-       static char buf[64];
-
-       if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
-               return safe_strncpy(buf, _("[NONE SET]"), sizeof(buf));
-       return (UNIX_print(sap->sa_data));
-}
-
-
-static struct aftype unix_aftype = {
-       "unix", "UNIX Domain", AF_UNIX, 0,
-       UNIX_print, UNIX_sprint, NULL, NULL,
-       NULL, NULL, NULL,
-       -1,
-       "/proc/net/unix"
-};
-#endif                                                 /* HAVE_AFUNIX */
-
-#if HAVE_AFINET
-
-#ifdef KEEP_UNUSED
-static void INET_reserror(char *text)
-{
-       herror(text);
-}
-
-/* Display an Internet socket address. */
-static char *INET_print(unsigned char *ptr)
-{
-       return (inet_ntoa((*(struct in_addr *) ptr)));
-}
-#endif                                                 /* KEEP_UNUSED */
-
-/* Display an Internet socket address. */
-static char *INET_sprint(struct sockaddr *sap, int numeric)
-{
-       static char buff[128];
-
-       if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
-               return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
-
-       if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap,
-                                         numeric, 0xffffff00) != 0)
-               return (NULL);
-
-       return (buff);
-}
-
-#ifdef KEEP_UNUSED
-static char *INET_sprintmask(struct sockaddr *sap, int numeric,
-                                                        unsigned int netmask)
-{
-       static char buff[128];
-
-       if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
-               return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
-       if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap,
-                                         numeric, netmask) != 0)
-               return (NULL);
-       return (buff);
-}
-
-static int INET_getsock(char *bufp, struct sockaddr *sap)
-{
-       char *sp = bufp, *bp;
-       unsigned int i;
-       unsigned val;
-       struct sockaddr_in *sin;
-
-       sin = (struct sockaddr_in *) sap;
-       sin->sin_family = AF_INET;
-       sin->sin_port = 0;
-
-       val = 0;
-       bp = (char *) &val;
-       for (i = 0; i < sizeof(sin->sin_addr.s_addr); i++) {
-               *sp = toupper(*sp);
-
-               if ((*sp >= 'A') && (*sp <= 'F'))
-                       bp[i] |= (int) (*sp - 'A') + 10;
-               else if ((*sp >= '0') && (*sp <= '9'))
-                       bp[i] |= (int) (*sp - '0');
-               else
-                       return (-1);
-
-               bp[i] <<= 4;
-               sp++;
-               *sp = toupper(*sp);
-
-               if ((*sp >= 'A') && (*sp <= 'F'))
-                       bp[i] |= (int) (*sp - 'A') + 10;
-               else if ((*sp >= '0') && (*sp <= '9'))
-                       bp[i] |= (int) (*sp - '0');
-               else
-                       return (-1);
-
-               sp++;
-       }
-       sin->sin_addr.s_addr = htonl(val);
-
-       return (sp - bufp);
-}
-
-static int INET_input(int type, char *bufp, struct sockaddr *sap)
-{
-       switch (type) {
-       case 1:
-               return (INET_getsock(bufp, sap));
-       case 256:
-               return (INET_resolve(bufp, (struct sockaddr_in *) sap, 1));
-       default:
-               return (INET_resolve(bufp, (struct sockaddr_in *) sap, 0));
-       }
-}
-
-static int INET_getnetmask(char *adr, struct sockaddr *m, char *name)
-{
-       struct sockaddr_in *mask = (struct sockaddr_in *) m;
-       char *slash, *end;
-       int prefix;
-
-       if ((slash = strchr(adr, '/')) == NULL)
-               return 0;
-
-       *slash++ = '\0';
-       prefix = strtoul(slash, &end, 0);
-       if (*end != '\0')
-               return -1;
-
-       if (name) {
-               sprintf(name, "/%d", prefix);
-       }
-       mask->sin_family = AF_INET;
-       mask->sin_addr.s_addr = htonl(~(0xffffffffU >> prefix));
-       return 1;
-}
-#endif                                                 /* KEEP_UNUSED */
-
-static struct aftype inet_aftype = {
-       "inet", "DARPA Internet", AF_INET, sizeof(unsigned long),
-       NULL /* UNUSED INET_print */ , INET_sprint,
-       NULL /* UNUSED INET_input */ , NULL /* UNUSED INET_reserror */ ,
-       NULL /*INET_rprint */ , NULL /*INET_rinput */ ,
-       NULL /* UNUSED INET_getnetmask */ ,
-       -1,
-       NULL
-};
-
-#endif                                                 /* HAVE_AFINET */
-
-#if HAVE_AFINET6
-
-#ifdef KEEP_UNUSED
-static void INET6_reserror(char *text)
-{
-       herror(text);
-}
-
-/* Display an Internet socket address. */
-static char *INET6_print(unsigned char *ptr)
-{
-       static char name[80];
-
-       inet_ntop(AF_INET6, (struct in6_addr *) ptr, name, 80);
-       return name;
-}
-#endif                                                 /* KEEP_UNUSED */
-
-/* Display an Internet socket address. */
-/* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */
-static char *INET6_sprint(struct sockaddr *sap, int numeric)
-{
-       static char buff[128];
-
-       if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
-               return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
-       if (INET6_rresolve
-               (buff, sizeof(buff), (struct sockaddr_in6 *) sap, numeric) != 0)
-               return safe_strncpy(buff, _("[UNKNOWN]"), sizeof(buff));
-       return (buff);
-}
-
-#ifdef KEEP_UNUSED
-static int INET6_getsock(char *bufp, struct sockaddr *sap)
-{
-       struct sockaddr_in6 *sin6;
-
-       sin6 = (struct sockaddr_in6 *) sap;
-       sin6->sin6_family = AF_INET6;
-       sin6->sin6_port = 0;
-
-       if (inet_pton(AF_INET6, bufp, sin6->sin6_addr.s6_addr) <= 0)
-               return (-1);
-
-       return 16;                      /* ?;) */
-}
-
-static int INET6_input(int type, char *bufp, struct sockaddr *sap)
-{
-       switch (type) {
-       case 1:
-               return (INET6_getsock(bufp, sap));
-       default:
-               return (INET6_resolve(bufp, (struct sockaddr_in6 *) sap));
-       }
-}
-#endif                                                 /* KEEP_UNUSED */
-
-static struct aftype inet6_aftype = {
-       "inet6", "IPv6", AF_INET6, sizeof(struct in6_addr),
-       NULL /* UNUSED INET6_print */ , INET6_sprint,
-       NULL /* UNUSED INET6_input */ , NULL /* UNUSED INET6_reserror */ ,
-       NULL /*INET6_rprint */ , NULL /*INET6_rinput */ ,
-       NULL /* UNUSED INET6_getnetmask */ ,
-       -1,
-       NULL
-};
-
-#endif                                                 /* HAVE_AFINET6 */
-
-/* Display an UNSPEC address. */
-static char *UNSPEC_print(unsigned char *ptr)
-{
-       static char buff[sizeof(struct sockaddr) * 3 + 1];
-       char *pos;
-       unsigned int i;
-
-       pos = buff;
-       for (i = 0; i < sizeof(struct sockaddr); i++) {
-               /* careful -- not every libc's sprintf returns # bytes written */
-               sprintf(pos, "%02X-", (*ptr++ & 0377));
-               pos += 3;
-       }
-       /* Erase trailing "-".  Works as long as sizeof(struct sockaddr) != 0 */
-       *--pos = '\0';
-       return (buff);
-}
-
-/* Display an UNSPEC socket address. */
-static char *UNSPEC_sprint(struct sockaddr *sap, int numeric)
-{
-       static char buf[64];
-
-       if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
-               return safe_strncpy(buf, _("[NONE SET]"), sizeof(buf));
-       return (UNSPEC_print(sap->sa_data));
-}
-
-static struct aftype unspec_aftype = {
-       "unspec", "UNSPEC", AF_UNSPEC, 0,
-       UNSPEC_print, UNSPEC_sprint, NULL, NULL,
-       NULL,
-};
-
-static struct aftype * const aftypes[] = {
-#if HAVE_AFUNIX
-       &unix_aftype,
-#endif
-#if HAVE_AFINET
-       &inet_aftype,
-#endif
-#if HAVE_AFINET6
-       &inet6_aftype,
-#endif
-#if HAVE_AFAX25
-       &ax25_aftype,
-#endif
-#if HAVE_AFNETROM
-       &netrom_aftype,
-#endif
-#if HAVE_AFROSE
-       &rose_aftype,
-#endif
-#if HAVE_AFIPX
-       &ipx_aftype,
-#endif
-#if HAVE_AFATALK
-       &ddp_aftype,
-#endif
-#if HAVE_AFECONET
-       &ec_aftype,
-#endif
-#if HAVE_AFASH
-       &ash_aftype,
-#endif
-#if HAVE_AFX25
-       &x25_aftype,
-#endif
-       &unspec_aftype,
-       NULL
-};
-
-#ifdef KEEP_UNUSED
-static short sVafinit = 0;
-
-static void afinit()
-{
-       unspec_aftype.title = _("UNSPEC");
-#if HAVE_AFUNIX
-       unix_aftype.title = _("UNIX Domain");
-#endif
-#if HAVE_AFINET
-       inet_aftype.title = _("DARPA Internet");
-#endif
-#if HAVE_AFINET6
-       inet6_aftype.title = _("IPv6");
-#endif
-#if HAVE_AFAX25
-       ax25_aftype.title = _("AMPR AX.25");
-#endif
-#if HAVE_AFNETROM
-       netrom_aftype.title = _("AMPR NET/ROM");
-#endif
-#if HAVE_AFIPX
-       ipx_aftype.title = _("Novell IPX");
-#endif
-#if HAVE_AFATALK
-       ddp_aftype.title = _("Appletalk DDP");
-#endif
-#if HAVE_AFECONET
-       ec_aftype.title = _("Econet");
-#endif
-#if HAVE_AFX25
-       x25_aftype.title = _("CCITT X.25");
-#endif
-#if HAVE_AFROSE
-       rose_aftype.title = _("AMPR ROSE");
-#endif
-#if HAVE_AFASH
-       ash_aftype.title = _("Ash");
-#endif
-       sVafinit = 1;
-}
-
-static int aftrans_opt(const char *arg)
-{
-       struct aftrans_t *paft;
-       char *tmp1, *tmp2;
-       char buf[256];
-
-       safe_strncpy(buf, arg, sizeof(buf));
-
-       tmp1 = buf;
-
-       while (tmp1) {
-
-               tmp2 = strchr(tmp1, ',');
-
-               if (tmp2)
-                       *(tmp2++) = '\0';
-
-               paft = aftrans;
-               for (paft = aftrans; paft->alias; paft++) {
-                       if (strcmp(tmp1, paft->alias))
-                               continue;
-                       if (strlen(paft->name) + strlen(afname) + 1 >= sizeof(afname)) {
-                               bb_error_msg(_("Too many address family arguments."));
-                               return (0);
-                       }
-                       if (paft->flag)
-                               (*paft->flag)++;
-                       if (afname[0])
-                               strcat(afname, ",");
-                       strcat(afname, paft->name);
-                       break;
-               }
-               if (!paft->alias) {
-                       bb_error_msg(_("Unknown address family `%s'."), tmp1);
-                       return (1);
-               }
-               tmp1 = tmp2;
-       }
-
-       return (0);
-}
-
-/* set the default AF list from the program name or a constant value    */
-static void aftrans_def(char *tool, char *argv0, char *dflt)
-{
-       char *tmp;
-       char *buf;
-
-       strcpy(afname, dflt);
-
-       if (!(tmp = strrchr(argv0, '/')))
-               tmp = argv0;    /* no slash?! */
-       else
-               tmp++;
-
-       if (!(buf = strdup(tmp)))
-               return;
-
-       if (strlen(tool) >= strlen(tmp)) {
-               free(buf);
-               return;
-       }
-       tmp = buf + (strlen(tmp) - strlen(tool));
-
-       if (strcmp(tmp, tool) != 0) {
-               free(buf);
-               return;
-       }
-       *tmp = '\0';
-       if ((tmp = strchr(buf, '_')))
-               *tmp = '\0';
-
-       afname[0] = '\0';
-       if (aftrans_opt(buf))
-               strcpy(afname, buf);
-
-       free(buf);
-}
-
-/* Check our protocol family table for this family. */
-static struct aftype *get_aftype(const char *name)
-{
-       struct aftype * const *afp;
-
-#ifdef KEEP_UNUSED
-       if (!sVafinit)
-               afinit();
-#endif                                                 /* KEEP_UNUSED */
-
-       afp = aftypes;
-       while (*afp != NULL) {
-               if (!strcmp((*afp)->name, name))
-                       return (*afp);
-               afp++;
-       }
-       if (strchr(name, ','))
-               bb_error_msg(_("Please don't supply more than one address family."));
-       return (NULL);
-}
-#endif                                                 /* KEEP_UNUSED */
-
-/* Check our protocol family table for this family. */
-static struct aftype *get_afntype(int af)
-{
-       struct aftype * const *afp;
-
-#ifdef KEEP_UNUSED
-       if (!sVafinit)
-               afinit();
-#endif                                                 /* KEEP_UNUSED */
-
-       afp = aftypes;
-       while (*afp != NULL) {
-               if ((*afp)->af == af)
-                       return (*afp);
-               afp++;
-       }
-       return (NULL);
-}
-
-/* Check our protocol family table for this family and return its socket */
-static int get_socket_for_af(int af)
-{
-       struct aftype * const *afp;
-
-#ifdef KEEP_UNUSED
-       if (!sVafinit)
-               afinit();
-#endif                                                 /* KEEP_UNUSED */
-
-       afp = aftypes;
-       while (*afp != NULL) {
-               if ((*afp)->af == af)
-                       return (*afp)->fd;
-               afp++;
-       }
-       return -1;
-}
-
-#ifdef KEEP_UNUSED
-/* type: 0=all, 1=getroute */
-static void print_aflist(int type)
-{
-       int count = 0;
-       char *txt;
-       struct aftype * const *afp;
-
-#ifdef KEEP_UNUSED
-       if (!sVafinit)
-               afinit();
-#endif                                                 /* KEEP_UNUSED */
-
-       afp = aftypes;
-       while (*afp != NULL) {
-               if ((type == 1 && ((*afp)->rprint == NULL)) || ((*afp)->af == 0)) {
-                       afp++;
-                       continue;
-               }
-               if ((count % 3) == 0)
-                       fprintf(stderr, count ? "\n    " : "    ");
-               txt = (*afp)->name;
-               if (!txt)
-                       txt = "..";
-               fprintf(stderr, "%s (%s) ", txt, _((*afp)->title));
-               count++;
-               afp++;
-       }
-       fprintf(stderr, "\n");
-}
-#endif                                                 /* KEEP_UNUSED */
-
-struct user_net_device_stats {
-       unsigned long long rx_packets;  /* total packets received       */
-       unsigned long long tx_packets;  /* total packets transmitted    */
-       unsigned long long rx_bytes;    /* total bytes received         */
-       unsigned long long tx_bytes;    /* total bytes transmitted      */
-       unsigned long rx_errors;        /* bad packets received         */
-       unsigned long tx_errors;        /* packet transmit problems     */
-       unsigned long rx_dropped;       /* no space in linux buffers    */
-       unsigned long tx_dropped;       /* no space available in linux  */
-       unsigned long rx_multicast;     /* multicast packets received   */
-       unsigned long rx_compressed;
-       unsigned long tx_compressed;
-       unsigned long collisions;
-
-       /* detailed rx_errors: */
-       unsigned long rx_length_errors;
-       unsigned long rx_over_errors;   /* receiver ring buff overflow  */
-       unsigned long rx_crc_errors;    /* recved pkt with crc error    */
-       unsigned long rx_frame_errors;  /* recv'd frame alignment error */
-       unsigned long rx_fifo_errors;   /* recv'r fifo overrun          */
-       unsigned long rx_missed_errors; /* receiver missed packet     */
-       /* detailed tx_errors */
-       unsigned long tx_aborted_errors;
-       unsigned long tx_carrier_errors;
-       unsigned long tx_fifo_errors;
-       unsigned long tx_heartbeat_errors;
-       unsigned long tx_window_errors;
-};
-
-struct interface {
-       struct interface *next, *prev;
-       char name[IFNAMSIZ];    /* interface name        */
-       short type;                     /* if type               */
-       short flags;            /* various flags         */
-       int metric;                     /* routing metric        */
-       int mtu;                        /* MTU value             */
-       int tx_queue_len;       /* transmit queue length */
-       struct ifmap map;       /* hardware setup        */
-       struct sockaddr addr;   /* IP address            */
-       struct sockaddr dstaddr;        /* P-P IP address        */
-       struct sockaddr broadaddr;      /* IP broadcast address  */
-       struct sockaddr netmask;        /* IP network mask       */
-       struct sockaddr ipxaddr_bb;     /* IPX network address   */
-       struct sockaddr ipxaddr_sn;     /* IPX network address   */
-       struct sockaddr ipxaddr_e3;     /* IPX network address   */
-       struct sockaddr ipxaddr_e2;     /* IPX network address   */
-       struct sockaddr ddpaddr;        /* Appletalk DDP address */
-       struct sockaddr ecaddr; /* Econet address        */
-       int has_ip;
-       int has_ipx_bb;
-       int has_ipx_sn;
-       int has_ipx_e3;
-       int has_ipx_e2;
-       int has_ax25;
-       int has_ddp;
-       int has_econet;
-       char hwaddr[32];        /* HW address            */
-       int statistics_valid;
-       struct user_net_device_stats stats;     /* statistics            */
-       int keepalive;          /* keepalive value for SLIP */
-       int outfill;            /* outfill value for SLIP */
-};
-
-
-int interface_opt_a = 0;       /* show all interfaces          */
-
-#ifdef KEEP_UNUSED
-static int opt_i = 0;  /* show the statistics          */
-static int opt_v = 0;  /* debugging output flag        */
-
-static int addr_family = 0;    /* currently selected AF        */
-#endif                                                 /* KEEP_UNUSED */
-
-static struct interface *int_list, *int_last;
-static int skfd = -1;  /* generic raw socket desc.     */
-
-
-static int sockets_open(int family)
-{
-       struct aftype * const *aft;
-       int sfd = -1;
-       static int force = -1;
-
-       if (force < 0) {
-               force = 0;
-               if (get_kernel_revision() < KRELEASE(2, 1, 0))
-                       force = 1;
-               if (access("/proc/net", R_OK))
-                       force = 1;
-       }
-       for (aft = aftypes; *aft; aft++) {
-               struct aftype *af = *aft;
-               int type = SOCK_DGRAM;
-
-               if (af->af == AF_UNSPEC)
-                       continue;
-               if (family && family != af->af)
-                       continue;
-               if (af->fd != -1) {
-                       sfd = af->fd;
-                       continue;
-               }
-               /* Check some /proc file first to not stress kmod */
-               if (!family && !force && af->flag_file) {
-                       if (access(af->flag_file, R_OK))
-                               continue;
-               }
-#if HAVE_AFNETROM
-               if (af->af == AF_NETROM)
-                       type = SOCK_SEQPACKET;
-#endif
-#if HAVE_AFX25
-               if (af->af == AF_X25)
-                       type = SOCK_SEQPACKET;
-#endif
-               af->fd = socket(af->af, type, 0);
-               if (af->fd >= 0)
-                       sfd = af->fd;
-       }
-       if (sfd < 0) {
-               bb_error_msg(_("No usable address families found."));
-       }
-       return sfd;
-}
-
-#ifdef CONFIG_FEATURE_CLEAN_UP
-static void sockets_close(void)
-{
-       struct aftype * const *aft;
-       for (aft = aftypes; *aft != NULL; aft++) {
-               struct aftype *af = *aft;
-               if( af->fd != -1 ) {
-                       close(af->fd);
-                       af->fd = -1;
-               }
-       }
-}
-#endif
-
-/* like strcmp(), but knows about numbers */
-static int nstrcmp(const char *a, const char *b)
-{
-       const char *a_ptr = a;
-       const char *b_ptr = b;
-
-       while (*a == *b) {
-               if (*a == '\0') {
-                       return 0;
-               }
-               if (!isdigit(*a) && isdigit(*(a+1))) {
-                       a_ptr = a+1;
-                       b_ptr = b+1;
-               }
-               a++;
-               b++;
-       }
-
-       if (isdigit(*a) && isdigit(*b)) {
-               return atoi(a_ptr) > atoi(b_ptr) ? 1 : -1;
-       }
-       return *a - *b;
-}
-
-static struct interface *add_interface(char *name)
-{
-       struct interface *ife, **nextp, *new;
-
-       for (ife = int_last; ife; ife = ife->prev) {
-               int n = nstrcmp(ife->name, name);
-
-               if (n == 0)
-                       return ife;
-               if (n < 0)
-                       break;
-       }
-       new(new);
-       safe_strncpy(new->name, name, IFNAMSIZ);
-       nextp = ife ? &ife->next : &int_list;
-       new->prev = ife;
-       new->next = *nextp;
-       if (new->next)
-               new->next->prev = new;
-       else
-               int_last = new;
-       *nextp = new;
-       return new;
-}
-
-
-static int if_readconf(void)
-{
-       int numreqs = 30;
-       struct ifconf ifc;
-       struct ifreq *ifr;
-       int n, err = -1;
-       int skfd2;
-
-       /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets
-          (as of 2.1.128) */
-       skfd2 = get_socket_for_af(AF_INET);
-       if (skfd2 < 0) {
-               bb_perror_msg(("warning: no inet socket available"));
-               /* Try to soldier on with whatever socket we can get hold of.  */
-               skfd2 = sockets_open(0);
-               if (skfd2 < 0)
-                       return -1;
-       }
-
-       ifc.ifc_buf = NULL;
-       for (;;) {
-               ifc.ifc_len = sizeof(struct ifreq) * numreqs;
-               ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len);
-
-               if (ioctl(skfd2, SIOCGIFCONF, &ifc) < 0) {
-                       perror("SIOCGIFCONF");
-                       goto out;
-               }
-               if (ifc.ifc_len == sizeof(struct ifreq) * numreqs) {
-                       /* assume it overflowed and try again */
-                       numreqs += 10;
-                       continue;
-               }
-               break;
-       }
-
-       ifr = ifc.ifc_req;
-       for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) {
-               add_interface(ifr->ifr_name);
-               ifr++;
-       }
-       err = 0;
-
-  out:
-       free(ifc.ifc_buf);
-       return err;
-}
-
-static char *get_name(char *name, char *p)
-{
-       /* Extract <name>[:<alias>] from nul-terminated p where p matches
-          <name>[:<alias>]: after leading whitespace.
-          If match is not made, set name empty and return unchanged p */
-       int namestart=0, nameend=0, aliasend;
-       while (isspace(p[namestart]))
-               namestart++;
-       nameend=namestart;
-       while (p[nameend] && p[nameend]!=':' && !isspace(p[nameend]))
-               nameend++;
-       if (p[nameend]==':') {
-               aliasend=nameend+1;
-               while (p[aliasend] && isdigit(p[aliasend]))
-                       aliasend++;
-               if (p[aliasend]==':') {
-                       nameend=aliasend;
-               }
-               if ((nameend-namestart)<IFNAMSIZ) {
-                       memcpy(name,&p[namestart],nameend-namestart);
-                       name[nameend-namestart]='\0';
-                       p=&p[nameend];
-               } else {
-                       /* Interface name too large */
-                       name[0]='\0';
-               }
-       } else {
-               /* first ':' not found - return empty */
-               name[0]='\0';
-       }
-       return p + 1;
-}
-
-/* If scanf supports size qualifiers for %n conversions, then we can
- * use a modified fmt that simply stores the position in the fields
- * having no associated fields in the proc string.  Of course, we need
- * to zero them again when we're done.  But that is smaller than the
- * old approach of multiple scanf occurrences with large numbers of
- * args. */
-
-/* static const char *ss_fmt[] = { */
-/*     "%Ln%Lu%lu%lu%lu%lu%ln%ln%Ln%Lu%lu%lu%lu%lu%lu", */
-/*     "%Lu%Lu%lu%lu%lu%lu%ln%ln%Lu%Lu%lu%lu%lu%lu%lu", */
-/*     "%Lu%Lu%lu%lu%lu%lu%lu%lu%Lu%Lu%lu%lu%lu%lu%lu%lu" */
-/* }; */
-
-       /* Lie about the size of the int pointed to for %n. */
-#if INT_MAX == LONG_MAX
-static const char * const ss_fmt[] = {
-       "%n%Lu%u%u%u%u%n%n%n%Lu%u%u%u%u%u",
-       "%Lu%Lu%u%u%u%u%n%n%Lu%Lu%u%u%u%u%u",
-       "%Lu%Lu%u%u%u%u%u%u%Lu%Lu%u%u%u%u%u%u"
-};
-#else
-static const char * const ss_fmt[] = {
-       "%n%Lu%lu%lu%lu%lu%n%n%n%Lu%lu%lu%lu%lu%lu",
-       "%Lu%Lu%lu%lu%lu%lu%n%n%Lu%Lu%lu%lu%lu%lu%lu",
-       "%Lu%Lu%lu%lu%lu%lu%lu%lu%Lu%Lu%lu%lu%lu%lu%lu%lu"
-};
-
-#endif
-
-static void get_dev_fields(char *bp, struct interface *ife, int procnetdev_vsn)
-{
-       memset(&ife->stats, 0, sizeof(struct user_net_device_stats));
-
-       sscanf(bp, ss_fmt[procnetdev_vsn],
-                  &ife->stats.rx_bytes, /* missing for 0 */
-                  &ife->stats.rx_packets,
-                  &ife->stats.rx_errors,
-                  &ife->stats.rx_dropped,
-                  &ife->stats.rx_fifo_errors,
-                  &ife->stats.rx_frame_errors,
-                  &ife->stats.rx_compressed, /* missing for <= 1 */
-                  &ife->stats.rx_multicast, /* missing for <= 1 */
-                  &ife->stats.tx_bytes, /* missing for 0 */
-                  &ife->stats.tx_packets,
-                  &ife->stats.tx_errors,
-                  &ife->stats.tx_dropped,
-                  &ife->stats.tx_fifo_errors,
-                  &ife->stats.collisions,
-                  &ife->stats.tx_carrier_errors,
-                  &ife->stats.tx_compressed /* missing for <= 1 */
-                  );
-
-       if (procnetdev_vsn <= 1) {
-               if (procnetdev_vsn == 0) {
-                       ife->stats.rx_bytes = 0;
-                       ife->stats.tx_bytes = 0;
-               }
-               ife->stats.rx_multicast = 0;
-               ife->stats.rx_compressed = 0;
-               ife->stats.tx_compressed = 0;
-       }
-}
-
-static inline int procnetdev_version(char *buf)
-{
-       if (strstr(buf, "compressed"))
-               return 2;
-       if (strstr(buf, "bytes"))
-               return 1;
-       return 0;
-}
-
-static int if_readlist_proc(char *target)
-{
-       static int proc_read;
-       FILE *fh;
-       char buf[512];
-       struct interface *ife;
-       int err, procnetdev_vsn;
-
-       if (proc_read)
-               return 0;
-       if (!target)
-               proc_read = 1;
-
-       fh = fopen(_PATH_PROCNET_DEV, "r");
-       if (!fh) {
-               bb_perror_msg(_("Warning: cannot open %s. Limited output."), _PATH_PROCNET_DEV);
-               return if_readconf();
-       }
-       fgets(buf, sizeof buf, fh);     /* eat line */
-       fgets(buf, sizeof buf, fh);
-
-       procnetdev_vsn = procnetdev_version(buf);
-
-       err = 0;
-       while (fgets(buf, sizeof buf, fh)) {
-               char *s, name[128];
-
-               s = get_name(name, buf);
-               ife = add_interface(name);
-               get_dev_fields(s, ife, procnetdev_vsn);
-               ife->statistics_valid = 1;
-               if (target && !strcmp(target, name))
-                       break;
-       }
-       if (ferror(fh)) {
-               perror(_PATH_PROCNET_DEV);
-               err = -1;
-               proc_read = 0;
-       }
-       fclose(fh);
-       return err;
-}
-
-static int if_readlist(void)
-{
-       int err = if_readlist_proc(NULL);
-
-       if (!err)
-               err = if_readconf();
-       return err;
-}
-
-static int for_all_interfaces(int (*doit) (struct interface *, void *),
-                                                         void *cookie)
-{
-       struct interface *ife;
-
-       if (!int_list && (if_readlist() < 0))
-               return -1;
-       for (ife = int_list; ife; ife = ife->next) {
-               int err = doit(ife, cookie);
-
-               if (err)
-                       return err;
-       }
-       return 0;
-}
-
-/* Support for fetching an IPX address */
-
-#if HAVE_AFIPX
-static int ipx_getaddr(int sock, int ft, struct ifreq *ifr)
-{
-       ((struct sockaddr_ipx *) &ifr->ifr_addr)->sipx_type = ft;
-       return ioctl(sock, SIOCGIFADDR, ifr);
-}
-#endif
-
-
-/* Fetch the interface configuration from the kernel. */
-static int if_fetch(struct interface *ife)
-{
-       struct ifreq ifr;
-       int fd;
-       char *ifname = ife->name;
-
-       strcpy(ifr.ifr_name, ifname);
-       if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0)
-               return (-1);
-       ife->flags = ifr.ifr_flags;
-
-       strcpy(ifr.ifr_name, ifname);
-       if (ioctl(skfd, SIOCGIFHWADDR, &ifr) < 0)
-               memset(ife->hwaddr, 0, 32);
-       else
-               memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8);
-
-       ife->type = ifr.ifr_hwaddr.sa_family;
-
-       strcpy(ifr.ifr_name, ifname);
-       if (ioctl(skfd, SIOCGIFMETRIC, &ifr) < 0)
-               ife->metric = 0;
-       else
-               ife->metric = ifr.ifr_metric;
-
-       strcpy(ifr.ifr_name, ifname);
-       if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0)
-               ife->mtu = 0;
-       else
-               ife->mtu = ifr.ifr_mtu;
-
-#ifdef HAVE_HWSLIP
-       if (ife->type == ARPHRD_SLIP || ife->type == ARPHRD_CSLIP ||
-               ife->type == ARPHRD_SLIP6 || ife->type == ARPHRD_CSLIP6 ||
-               ife->type == ARPHRD_ADAPT) {
-#ifdef SIOCGOUTFILL
-               strcpy(ifr.ifr_name, ifname);
-               if (ioctl(skfd, SIOCGOUTFILL, &ifr) < 0)
-                       ife->outfill = 0;
-               else
-                       ife->outfill = (unsigned int) ifr.ifr_data;
-#endif
-#ifdef SIOCGKEEPALIVE
-               strcpy(ifr.ifr_name, ifname);
-               if (ioctl(skfd, SIOCGKEEPALIVE, &ifr) < 0)
-                       ife->keepalive = 0;
-               else
-                       ife->keepalive = (unsigned int) ifr.ifr_data;
-#endif
-       }
-#endif
-
-#ifdef SIOCGIFMAP
-       strcpy(ifr.ifr_name, ifname);
-       if (ioctl(skfd, SIOCGIFMAP, &ifr) == 0)
-               ife->map = ifr.ifr_map;
-       else
-#endif
-               memset(&ife->map, 0, sizeof(struct ifmap));
-
-#ifdef HAVE_TXQUEUELEN
-       strcpy(ifr.ifr_name, ifname);
-       if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) < 0)
-               ife->tx_queue_len = -1; /* unknown value */
-       else
-               ife->tx_queue_len = ifr.ifr_qlen;
-#else
-       ife->tx_queue_len = -1; /* unknown value */
-#endif
-
-#if HAVE_AFINET
-       /* IPv4 address? */
-       fd = get_socket_for_af(AF_INET);
-       if (fd >= 0) {
-               strcpy(ifr.ifr_name, ifname);
-               ifr.ifr_addr.sa_family = AF_INET;
-               if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
-                       ife->has_ip = 1;
-                       ife->addr = ifr.ifr_addr;
-                       strcpy(ifr.ifr_name, ifname);
-                       if (ioctl(fd, SIOCGIFDSTADDR, &ifr) < 0)
-                               memset(&ife->dstaddr, 0, sizeof(struct sockaddr));
-                       else
-                               ife->dstaddr = ifr.ifr_dstaddr;
-
-                       strcpy(ifr.ifr_name, ifname);
-                       if (ioctl(fd, SIOCGIFBRDADDR, &ifr) < 0)
-                               memset(&ife->broadaddr, 0, sizeof(struct sockaddr));
-                       else
-                               ife->broadaddr = ifr.ifr_broadaddr;
-
-                       strcpy(ifr.ifr_name, ifname);
-                       if (ioctl(fd, SIOCGIFNETMASK, &ifr) < 0)
-                               memset(&ife->netmask, 0, sizeof(struct sockaddr));
-                       else
-                               ife->netmask = ifr.ifr_netmask;
-               } else
-                       memset(&ife->addr, 0, sizeof(struct sockaddr));
-       }
-#endif
-
-#if HAVE_AFATALK
-       /* DDP address maybe ? */
-       fd = get_socket_for_af(AF_APPLETALK);
-       if (fd >= 0) {
-               strcpy(ifr.ifr_name, ifname);
-               if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
-                       ife->ddpaddr = ifr.ifr_addr;
-                       ife->has_ddp = 1;
-               }
-       }
-#endif
-
-#if HAVE_AFIPX
-       /* Look for IPX addresses with all framing types */
-       fd = get_socket_for_af(AF_IPX);
-       if (fd >= 0) {
-               strcpy(ifr.ifr_name, ifname);
-               if (!ipx_getaddr(fd, IPX_FRAME_ETHERII, &ifr)) {
-                       ife->has_ipx_bb = 1;
-                       ife->ipxaddr_bb = ifr.ifr_addr;
-               }
-               strcpy(ifr.ifr_name, ifname);
-               if (!ipx_getaddr(fd, IPX_FRAME_SNAP, &ifr)) {
-                       ife->has_ipx_sn = 1;
-                       ife->ipxaddr_sn = ifr.ifr_addr;
-               }
-               strcpy(ifr.ifr_name, ifname);
-               if (!ipx_getaddr(fd, IPX_FRAME_8023, &ifr)) {
-                       ife->has_ipx_e3 = 1;
-                       ife->ipxaddr_e3 = ifr.ifr_addr;
-               }
-               strcpy(ifr.ifr_name, ifname);
-               if (!ipx_getaddr(fd, IPX_FRAME_8022, &ifr)) {
-                       ife->has_ipx_e2 = 1;
-                       ife->ipxaddr_e2 = ifr.ifr_addr;
-               }
-       }
-#endif
-
-#if HAVE_AFECONET
-       /* Econet address maybe? */
-       fd = get_socket_for_af(AF_ECONET);
-       if (fd >= 0) {
-               strcpy(ifr.ifr_name, ifname);
-               if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
-                       ife->ecaddr = ifr.ifr_addr;
-                       ife->has_econet = 1;
-               }
-       }
-#endif
-
-       return 0;
-}
-
-
-static int do_if_fetch(struct interface *ife)
-{
-       if (if_fetch(ife) < 0) {
-               char *errmsg;
-
-               if (errno == ENODEV) {
-                       /* Give better error message for this case. */
-                       errmsg = _("Device not found");
-               } else {
-                       errmsg = strerror(errno);
-               }
-               bb_error_msg(_("%s: error fetching interface information: %s"),
-                               ife->name, errmsg);
-               return -1;
-       }
-       return 0;
-}
-
-/* This structure defines hardware protocols and their handlers. */
-struct hwtype {
-       const char *name;
-       const char *title;
-       int type;
-       int alen;
-       char *(*print) (unsigned char *);
-       int (*input) (char *, struct sockaddr *);
-       int (*activate) (int fd);
-       int suppress_null_addr;
-};
-
-static const struct hwtype unspec_hwtype = {
-       "unspec", "UNSPEC", -1, 0,
-       UNSPEC_print, NULL, NULL
-};
-
-static const struct hwtype loop_hwtype = {
-       "loop", "Local Loopback", ARPHRD_LOOPBACK, 0,
-       NULL, NULL, NULL
-};
-
-#if HAVE_HWETHER
-#include <net/if_arp.h>
-
-#if (__GLIBC__ >=2 && __GLIBC_MINOR >= 1) || defined(_NEWLIB_VERSION)
-#include <net/ethernet.h>
-#else
-#include <linux/if_ether.h>
-#endif
-
-/* Display an Ethernet address in readable format. */
-static char *pr_ether(unsigned char *ptr)
-{
-       static char buff[64];
-
-       snprintf(buff, sizeof(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);
-}
-
-#ifdef KEEP_UNUSED
-/* Input an Ethernet address and convert to binary. */
-static int in_ether(char *bufp, struct sockaddr *sap)
-{
-       unsigned char *ptr;
-       char c, *orig;
-       int i;
-       unsigned val;
-
-       sap->sa_family = ether_hwtype.type;
-       ptr = sap->sa_data;
-
-       i = 0;
-       orig = bufp;
-       while ((*bufp != '\0') && (i < ETH_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
-                       bb_error_msg(_("in_ether(%s): invalid ether 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 if (c == ':' || c == 0)
-                       val >>= 4;
-               else {
-#ifdef DEBUG
-                       bb_error_msg(_("in_ether(%s): invalid ether address!"), orig);
-#endif
-                       errno = EINVAL;
-                       return (-1);
-               }
-               if (c != 0)
-                       bufp++;
-               *ptr++ = (unsigned char) (val & 0377);
-               i++;
-
-               /* We might get a semicolon here - not required. */
-               if (*bufp == ':') {
-#ifdef DEBUG
-                       if (i == ETH_ALEN) {
-                               bb_error_msg(_("in_ether(%s): trailing : ignored!"), orig);
-                       }
-#endif
-                       bufp++;
-               }
-       }
-
-#ifdef DEBUG
-       /* That's it.  Any trailing junk? */
-       if ((i == ETH_ALEN) && (*bufp != '\0')) {
-               bb_error_msg(_("in_ether(%s): trailing junk!"), orig);
-               errno = EINVAL;
-               return (-1);
-       }
-       bb_error_msg("in_ether(%s): %s", orig, pr_ether(sap->sa_data));
-#endif
-
-       return (0);
-}
-#endif                                                 /* KEEP_UNUSED */
-
-
-static const struct hwtype ether_hwtype = {
-       "ether", "Ethernet", ARPHRD_ETHER, ETH_ALEN,
-       pr_ether, NULL /* UNUSED in_ether */ , NULL
-};
-
-
-#endif                                                 /* HAVE_HWETHER */
-
-
-#if HAVE_HWPPP
-
-#include <net/if_arp.h>
-
-#ifdef KEEP_UNUSED
-/* Start the PPP encapsulation on the file descriptor. */
-static int do_ppp(int fd)
-{
-       bb_error_msg(_("You cannot start PPP with this program."));
-       return -1;
-}
-#endif                                                 /* KEEP_UNUSED */
-
-static const struct hwtype ppp_hwtype = {
-       "ppp", "Point-Point Protocol", ARPHRD_PPP, 0,
-       NULL, NULL, NULL /* UNUSED do_ppp */ , 0
-};
-
-
-#endif                                                 /* HAVE_PPP */
-
-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
-       &unspec_hwtype,
-       NULL
-};
-
-#ifdef KEEP_UNUSED
-static short sVhwinit = 0;
-
-static void hwinit()
-{
-       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
-       sVhwinit = 1;
-}
-#endif                                                 /* KEEP_UNUSED */
-
-#ifdef IFF_PORTSEL
-#if 0
-static const char * const if_port_text[][4] = {
-       /* Keep in step with <linux/netdevice.h> */
-       {"unknown", NULL, NULL, NULL},
-       {"10base2", "bnc", "coax", NULL},
-       {"10baseT", "utp", "tpe", NULL},
-       {"AUI", "thick", "db15", NULL},
-       {"100baseT", NULL, NULL, NULL},
-       {"100baseTX", NULL, NULL, NULL},
-       {"100baseFX", NULL, NULL, NULL},
-       {NULL, NULL, NULL, NULL},
-};
-#else
-static const char * const if_port_text[] = {
-       /* Keep in step with <linux/netdevice.h> */
-       "unknown",
-       "10base2",
-       "10baseT",
-       "AUI",
-       "100baseT",
-       "100baseTX",
-       "100baseFX",
-       NULL
-};
-#endif
-#endif
-
-/* Check our hardware type table for this type. */
-static const struct hwtype *get_hwntype(int type)
-{
-       const struct hwtype * const *hwp;
-
-#ifdef KEEP_UNUSED
-       if (!sVhwinit)
-               hwinit();
-#endif                                                 /* KEEP_UNUSED */
-
-       hwp = hwtypes;
-       while (*hwp != NULL) {
-               if ((*hwp)->type == type)
-                       return (*hwp);
-               hwp++;
-       }
-       return (NULL);
-}
-
-/* return 1 if address is all zeros */
-static 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;
-}
-
-static const char TRext[] = "\0\0\0Ki\0Mi\0Gi\0Ti";
-
-static void print_bytes_scaled(unsigned long long ull, const char *end)
-{
-       unsigned long long int_part;
-       const char *ext;
-       unsigned int frac_part;
-       int i;
-
-       frac_part = 0;
-       ext = TRext;
-       int_part = ull;
-       i = 4;
-       do {
-#if 0
-               /* This does correct rounding and is a little larger.  But it
-                * uses KiB as the smallest displayed unit. */
-               if ((int_part < (1024*1024 - 51)) || !--i) {
-                       i = 0;
-                       int_part += 51;         /* 1024*.05 = 51.2 */
-                       frac_part = ((((unsigned int) int_part) & (1024-1)) * 10) / 1024;
-               }
-               int_part /= 1024;
-               ext += 3;       /* KiB, MiB, GiB, TiB */
-#else
-               if (int_part >= 1024) {
-                       frac_part = ((((unsigned int) int_part) & (1024-1)) * 10) / 1024;
-                       int_part /= 1024;
-                       ext += 3;       /* KiB, MiB, GiB, TiB */
-               }
-               --i;
-#endif
-       } while (i);
-
-       printf("X bytes:%Lu (%Lu.%u %sB)%s", ull, int_part, frac_part, ext, end);
-}
-
-static const char * const ife_print_flags_strs[] = {
-       "UP ",
-       "BROADCAST ",
-       "DEBUG ",
-       "LOOPBACK ",
-       "POINTOPOINT ",
-       "NOTRAILERS ",
-       "RUNNING ",
-       "NOARP ",
-       "PROMISC ",
-       "ALLMULTI ",
-       "SLAVE ",
-       "MASTER ",
-       "MULTICAST ",
-#ifdef HAVE_DYNAMIC
-       "DYNAMIC "
-#endif
-};
-
-static const unsigned short ife_print_flags_mask[] = {
-       IFF_UP,
-       IFF_BROADCAST,
-       IFF_DEBUG,
-       IFF_LOOPBACK,
-       IFF_POINTOPOINT,
-       IFF_NOTRAILERS,
-       IFF_RUNNING,
-       IFF_NOARP,
-       IFF_PROMISC,
-       IFF_ALLMULTI,
-       IFF_SLAVE,
-       IFF_MASTER,
-       IFF_MULTICAST,
-#ifdef HAVE_DYNAMIC
-       IFF_DYNAMIC
-#endif
-       0
-};
-
-static void ife_print(struct interface *ptr)
-{
-       struct aftype *ap;
-       const struct hwtype *hw;
-       int hf;
-       int can_compress = 0;
-
-#if HAVE_AFIPX
-       static struct aftype *ipxtype = NULL;
-#endif
-#if HAVE_AFECONET
-       static struct aftype *ectype = NULL;
-#endif
-#if HAVE_AFATALK
-       static struct aftype *ddptype = NULL;
-#endif
-#if HAVE_AFINET6
-       FILE *f;
-       char addr6[40], devname[20];
-       struct sockaddr_in6 sap;
-       int plen, scope, dad_status, if_idx;
-       char addr6p[8][5];
-#endif
-
-       ap = get_afntype(ptr->addr.sa_family);
-       if (ap == NULL)
-               ap = get_afntype(0);
-
-       hf = ptr->type;
-
-       if (hf == ARPHRD_CSLIP || hf == ARPHRD_CSLIP6)
-               can_compress = 1;
-
-       hw = get_hwntype(hf);
-       if (hw == NULL)
-               hw = get_hwntype(-1);
-
-       printf(_("%-9.9s Link encap:%s  "), ptr->name, _(hw->title));
-       /* For some hardware types (eg Ash, ATM) we don't print the
-          hardware address if it's null.  */
-       if (hw->print != NULL && (!(hw_null_address(hw, ptr->hwaddr) &&
-                                                               hw->suppress_null_addr)))
-               printf(_("HWaddr %s  "), hw->print(ptr->hwaddr));
-#ifdef IFF_PORTSEL
-       if (ptr->flags & IFF_PORTSEL) {
-               printf(_("Media:%s"), if_port_text[ptr->map.port] /* [0] */);
-               if (ptr->flags & IFF_AUTOMEDIA)
-                       printf(_("(auto)"));
-       }
-#endif
-       printf("\n");
-
-#if HAVE_AFINET
-       if (ptr->has_ip) {
-               printf(_("          %s addr:%s "), ap->name,
-                          ap->sprint(&ptr->addr, 1));
-               if (ptr->flags & IFF_POINTOPOINT) {
-                       printf(_(" P-t-P:%s "), ap->sprint(&ptr->dstaddr, 1));
-               }
-               if (ptr->flags & IFF_BROADCAST) {
-                       printf(_(" Bcast:%s "), ap->sprint(&ptr->broadaddr, 1));
-               }
-               printf(_(" Mask:%s\n"), ap->sprint(&ptr->netmask, 1));
-       }
-#endif
-
-#if HAVE_AFINET6
-
-#define IPV6_ADDR_ANY           0x0000U
-
-#define IPV6_ADDR_UNICAST       0x0001U
-#define IPV6_ADDR_MULTICAST     0x0002U
-#define IPV6_ADDR_ANYCAST       0x0004U
-
-#define IPV6_ADDR_LOOPBACK      0x0010U
-#define IPV6_ADDR_LINKLOCAL     0x0020U
-#define IPV6_ADDR_SITELOCAL     0x0040U
-
-#define IPV6_ADDR_COMPATv4      0x0080U
-
-#define IPV6_ADDR_SCOPE_MASK    0x00f0U
-
-#define IPV6_ADDR_MAPPED        0x1000U
-#define IPV6_ADDR_RESERVED      0x2000U        /* reserved address space */
-
-       if ((f = fopen(_PATH_PROCNET_IFINET6, "r")) != NULL) {
-               while (fscanf
-                          (f, "%4s%4s%4s%4s%4s%4s%4s%4s %02x %02x %02x %02x %20s\n",
-                               addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4],
-                               addr6p[5], addr6p[6], addr6p[7], &if_idx, &plen, &scope,
-                               &dad_status, devname) != EOF) {
-                       if (!strcmp(devname, ptr->name)) {
-                               sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
-                                               addr6p[0], addr6p[1], addr6p[2], addr6p[3],
-                                               addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
-                               inet_pton(AF_INET6, addr6,
-                                                 (struct sockaddr *) &sap.sin6_addr);
-                               sap.sin6_family = AF_INET6;
-                               printf(_("          inet6 addr: %s/%d"),
-                                          inet6_aftype.sprint((struct sockaddr *) &sap, 1),
-                                          plen);
-                               printf(_(" Scope:"));
-                               switch (scope & IPV6_ADDR_SCOPE_MASK) {
-                               case 0:
-                                       printf(_("Global"));
-                                       break;
-                               case IPV6_ADDR_LINKLOCAL:
-                                       printf(_("Link"));
-                                       break;
-                               case IPV6_ADDR_SITELOCAL:
-                                       printf(_("Site"));
-                                       break;
-                               case IPV6_ADDR_COMPATv4:
-                                       printf(_("Compat"));
-                                       break;
-                               case IPV6_ADDR_LOOPBACK:
-                                       printf(_("Host"));
-                                       break;
-                               default:
-                                       printf(_("Unknown"));
-                               }
-                               printf("\n");
-                       }
-               }
-               fclose(f);
-       }
-#endif
-
-#if HAVE_AFIPX
-       if (ipxtype == NULL)
-               ipxtype = get_afntype(AF_IPX);
-
-       if (ipxtype != NULL) {
-               if (ptr->has_ipx_bb)
-                       printf(_("          IPX/Ethernet II addr:%s\n"),
-                                  ipxtype->sprint(&ptr->ipxaddr_bb, 1));
-               if (ptr->has_ipx_sn)
-                       printf(_("          IPX/Ethernet SNAP addr:%s\n"),
-                                  ipxtype->sprint(&ptr->ipxaddr_sn, 1));
-               if (ptr->has_ipx_e2)
-                       printf(_("          IPX/Ethernet 802.2 addr:%s\n"),
-                                  ipxtype->sprint(&ptr->ipxaddr_e2, 1));
-               if (ptr->has_ipx_e3)
-                       printf(_("          IPX/Ethernet 802.3 addr:%s\n"),
-                                  ipxtype->sprint(&ptr->ipxaddr_e3, 1));
-       }
-#endif
-
-#if HAVE_AFATALK
-       if (ddptype == NULL)
-               ddptype = get_afntype(AF_APPLETALK);
-       if (ddptype != NULL) {
-               if (ptr->has_ddp)
-                       printf(_("          EtherTalk Phase 2 addr:%s\n"),
-                                  ddptype->sprint(&ptr->ddpaddr, 1));
-       }
-#endif
-
-#if HAVE_AFECONET
-       if (ectype == NULL)
-               ectype = get_afntype(AF_ECONET);
-       if (ectype != NULL) {
-               if (ptr->has_econet)
-                       printf(_("          econet addr:%s\n"),
-                                  ectype->sprint(&ptr->ecaddr, 1));
-       }
-#endif
-
-       printf("          ");
-       /* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */
-
-       if (ptr->flags == 0) {
-               printf(_("[NO FLAGS] "));
-       } else {
-               int i = 0;
-               do {
-                       if (ptr->flags & ife_print_flags_mask[i]) {
-                               printf(_(ife_print_flags_strs[i]));
-                       }
-               } while (ife_print_flags_mask[++i]);
-       }
-
-       /* DONT FORGET TO ADD THE FLAGS IN ife_print_short */
-       printf(_(" MTU:%d  Metric:%d"), ptr->mtu, ptr->metric ? ptr->metric : 1);
-#ifdef SIOCSKEEPALIVE
-       if (ptr->outfill || ptr->keepalive)
-               printf(_("  Outfill:%d  Keepalive:%d"), ptr->outfill, ptr->keepalive);
-#endif
-       printf("\n");
-
-       /* If needed, display the interface statistics. */
-
-       if (ptr->statistics_valid) {
-               /* XXX: statistics are currently only printed for the primary address,
-                *      not for the aliases, although strictly speaking they're shared
-                *      by all addresses.
-                */
-               printf("          ");
-
-               printf(_("RX packets:%Lu errors:%lu dropped:%lu overruns:%lu frame:%lu\n"),
-                          ptr->stats.rx_packets, ptr->stats.rx_errors,
-                          ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors,
-                          ptr->stats.rx_frame_errors);
-               if (can_compress)
-                       printf(_("             compressed:%lu\n"),
-                                  ptr->stats.rx_compressed);
-               printf("          ");
-               printf(_("TX packets:%Lu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n"),
-                          ptr->stats.tx_packets, ptr->stats.tx_errors,
-                          ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors,
-                          ptr->stats.tx_carrier_errors);
-               printf(_("          collisions:%lu "), ptr->stats.collisions);
-               if (can_compress)
-                       printf(_("compressed:%lu "), ptr->stats.tx_compressed);
-               if (ptr->tx_queue_len != -1)
-                       printf(_("txqueuelen:%d "), ptr->tx_queue_len);
-               printf("\n          R");
-               print_bytes_scaled(ptr->stats.rx_bytes, "  T");
-               print_bytes_scaled(ptr->stats.tx_bytes, "\n");
-
-       }
-
-       if ((ptr->map.irq || ptr->map.mem_start || ptr->map.dma ||
-                ptr->map.base_addr)) {
-               printf("          ");
-               if (ptr->map.irq)
-                       printf(_("Interrupt:%d "), ptr->map.irq);
-               if (ptr->map.base_addr >= 0x100)        /* Only print devices using it for
-                                                                                          I/O maps */
-                       printf(_("Base address:0x%lx "),
-                                  (unsigned long) ptr->map.base_addr);
-               if (ptr->map.mem_start) {
-                       printf(_("Memory:%lx-%lx "), ptr->map.mem_start,
-                                  ptr->map.mem_end);
-               }
-               if (ptr->map.dma)
-                       printf(_("DMA chan:%x "), ptr->map.dma);
-               printf("\n");
-       }
-       printf("\n");
-}
-
-
-static int do_if_print(struct interface *ife, void *cookie)
-{
-       int *opt_a = (int *) cookie;
-       int res;
-
-       res = do_if_fetch(ife);
-       if (res >= 0) {
-               if ((ife->flags & IFF_UP) || *opt_a)
-                       ife_print(ife);
-       }
-       return res;
-}
-
-static struct interface *lookup_interface(char *name)
-{
-       struct interface *ife = NULL;
-
-       if (if_readlist_proc(name) < 0)
-               return NULL;
-       ife = add_interface(name);
-       return ife;
-}
-
-/* for ipv4 add/del modes */
-static int if_print(char *ifname)
-{
-       int res;
-
-       if (!ifname) {
-               res = for_all_interfaces(do_if_print, &interface_opt_a);
-       } else {
-               struct interface *ife;
-
-               ife = lookup_interface(ifname);
-               res = do_if_fetch(ife);
-               if (res >= 0)
-                       ife_print(ife);
-       }
-       return res;
-}
-
-int display_interfaces(char *ifname)
-{
-       int status;
-
-       /* Create a channel to the NET kernel. */
-       if ((skfd = sockets_open(0)) < 0) {
-               bb_perror_msg_and_die("socket");
-       }
-
-       /* Do we have to show the current setup? */
-       status = if_print(ifname);
-#ifdef CONFIG_FEATURE_CLEAN_UP
-       sockets_close();
-#endif
-       exit(status < 0);
-}
index ecfd8235bc73f2021d492a3d709d16af3bac6ecf..376ecea6375f7859fbd9e575e8ef7ec8ce77c58f 100644 (file)
@@ -17,7 +17,7 @@ NETWORKING-$(CONFIG_FTPGET)       += ftpgetput.o
 NETWORKING-$(CONFIG_FTPPUT)       += ftpgetput.o
 NETWORKING-$(CONFIG_HOSTNAME)     += hostname.o
 NETWORKING-$(CONFIG_HTTPD)        += httpd.o
-NETWORKING-$(CONFIG_IFCONFIG)     += ifconfig.o
+NETWORKING-$(CONFIG_IFCONFIG)     += ifconfig.o interface.o
 NETWORKING-$(CONFIG_IFUPDOWN)     += ifupdown.o
 NETWORKING-$(CONFIG_INETD)        += inetd.o
 NETWORKING-$(CONFIG_IP)           += ip.o
diff --git a/networking/interface.c b/networking/interface.c
new file mode 100644 (file)
index 0000000..ce7d67d
--- /dev/null
@@ -0,0 +1,2093 @@
+/*
+ * stolen from net-tools-1.59 and stripped down for busybox by
+ *                     Erik Andersen <andersen@codepoet.org>
+ *
+ * Heavily modified by Manuel Novoa III       Mar 12, 2001
+ *
+ * Pruned unused code using KEEP_UNUSED define.
+ * Added print_bytes_scaled function to reduce code size.
+ * Added some (potentially) missing defines.
+ * Improved display support for -a and for a named interface.
+ *
+ * -----------------------------------------------------------
+ *
+ * ifconfig   This file contains an implementation of the command
+ *              that either displays or sets the characteristics of
+ *              one or more of the system's networking interfaces.
+ *
+ * Version:     $Id: interface.c,v 1.25 2004/08/26 21:45:21 andersen Exp $
+ *
+ * Author:      Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
+ *              and others.  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.
+ *
+ * Patched to support 'add' and 'del' keywords for INET(4) addresses
+ * by Mrs. Brisby <mrs.brisby@nimh.org>
+ *
+ * {1.34} - 19980630 - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+ *                     - gettext instead of catgets for i18n
+ *          10/1998  - Andi Kleen. Use interface list primitives.
+ *         20001008 - Bernd Eckenfels, Patch from RH for setting mtu
+ *                     (default AF was wrong)
+ */
+
+/* #define KEEP_UNUSED */
+
+/*
+ *
+ * Protocol Families.
+ *
+ */
+#define HAVE_AFINET 1
+#undef HAVE_AFIPX
+#undef HAVE_AFATALK
+#undef HAVE_AFNETROM
+#undef HAVE_AFX25
+#undef HAVE_AFECONET
+#undef HAVE_AFASH
+
+/*
+ *
+ * Device Hardware types.
+ *
+ */
+#define HAVE_HWETHER   1
+#define HAVE_HWPPP     1
+#undef HAVE_HWSLIP
+
+
+#include "inet_common.h"
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <net/if.h>
+#include <net/if_arp.h>
+#include "libbb.h"
+
+#ifdef CONFIG_FEATURE_IPV6
+# define HAVE_AFINET6 1
+#else
+# undef HAVE_AFINET6
+#endif
+
+#define _(x) x
+#define _PATH_PROCNET_DEV               "/proc/net/dev"
+#define _PATH_PROCNET_IFINET6           "/proc/net/if_inet6"
+#define new(p) ((p) = xcalloc(1,sizeof(*(p))))
+#define KRELEASE(maj,min,patch) ((maj) * 65536 + (min)*256 + (patch))
+
+#ifdef HAVE_HWSLIP
+#include <net/if_slip.h>
+#endif
+
+#if HAVE_AFINET6
+
+#ifndef _LINUX_IN6_H
+/*
+ *    This is in linux/include/net/ipv6.h.
+ */
+
+struct in6_ifreq {
+       struct in6_addr ifr6_addr;
+       uint32_t ifr6_prefixlen;
+       unsigned int ifr6_ifindex;
+};
+
+#endif
+
+#endif                                                 /* HAVE_AFINET6 */
+
+#if HAVE_AFIPX
+#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
+#include <netipx/ipx.h>
+#endif
+#endif
+
+/* Defines for glibc2.0 users. */
+#ifndef SIOCSIFTXQLEN
+#define SIOCSIFTXQLEN      0x8943
+#define SIOCGIFTXQLEN      0x8942
+#endif
+
+/* ifr_qlen is ifru_ivalue, but it isn't present in 2.0 kernel headers */
+#ifndef ifr_qlen
+#define ifr_qlen        ifr_ifru.ifru_mtu
+#endif
+
+#ifndef HAVE_TXQUEUELEN
+#define HAVE_TXQUEUELEN 1
+#endif
+
+#ifndef IFF_DYNAMIC
+#define IFF_DYNAMIC     0x8000 /* dialup device with changing addresses */
+#endif
+
+/* This structure defines protocol families and their handlers. */
+struct aftype {
+       const char *name;
+       const char *title;
+       int af;
+       int alen;
+       char *(*print) (unsigned char *);
+       char *(*sprint) (struct sockaddr *, int numeric);
+       int (*input) (int type, char *bufp, struct sockaddr *);
+       void (*herror) (char *text);
+       int (*rprint) (int options);
+       int (*rinput) (int typ, int ext, char **argv);
+
+       /* may modify src */
+       int (*getmask) (char *src, struct sockaddr * mask, char *name);
+
+       int fd;
+       char *flag_file;
+};
+
+#ifdef KEEP_UNUSED
+
+static int flag_unx;
+
+#ifdef HAVE_AFIPX
+static int flag_ipx;
+#endif
+#ifdef HAVE_AFX25
+static int flag_ax25;
+#endif
+#ifdef HAVE_AFATALK
+static int flag_ddp;
+#endif
+#ifdef HAVE_AFNETROM
+static int flag_netrom;
+#endif
+static int flag_inet;
+
+#ifdef HAVE_AFINET6
+static int flag_inet6;
+#endif
+#ifdef HAVE_AFECONET
+static int flag_econet;
+#endif
+#ifdef HAVE_AFX25
+static int flag_x25 = 0;
+#endif
+#ifdef HAVE_AFASH
+static int flag_ash;
+#endif
+
+
+static struct aftrans_t {
+       char *alias;
+       char *name;
+       int *flag;
+} aftrans[] = {
+
+#ifdef HAVE_AFX25
+       {
+       "ax25", "ax25", &flag_ax25},
+#endif
+       {
+       "ip", "inet", &flag_inet},
+#ifdef HAVE_AFINET6
+       {
+       "ip6", "inet6", &flag_inet6},
+#endif
+#ifdef HAVE_AFIPX
+       {
+       "ipx", "ipx", &flag_ipx},
+#endif
+#ifdef HAVE_AFATALK
+       {
+       "appletalk", "ddp", &flag_ddp},
+#endif
+#ifdef HAVE_AFNETROM
+       {
+       "netrom", "netrom", &flag_netrom},
+#endif
+       {
+       "inet", "inet", &flag_inet},
+#ifdef HAVE_AFINET6
+       {
+       "inet6", "inet6", &flag_inet6},
+#endif
+#ifdef HAVE_AFATALK
+       {
+       "ddp", "ddp", &flag_ddp},
+#endif
+       {
+       "unix", "unix", &flag_unx}, {
+       "tcpip", "inet", &flag_inet},
+#ifdef HAVE_AFECONET
+       {
+       "econet", "ec", &flag_econet},
+#endif
+#ifdef HAVE_AFX25
+       {
+       "x25", "x25", &flag_x25},
+#endif
+#ifdef HAVE_AFASH
+       {
+       "ash", "ash", &flag_ash},
+#endif
+       {
+       0, 0, 0}
+};
+
+static char afname[256] = "";
+#endif                                                 /* KEEP_UNUSED */
+
+#if HAVE_AFUNIX
+
+/* Display a UNIX domain address. */
+static char *UNIX_print(unsigned char *ptr)
+{
+       return (ptr);
+}
+
+
+/* Display a UNIX domain address. */
+static char *UNIX_sprint(struct sockaddr *sap, int numeric)
+{
+       static char buf[64];
+
+       if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
+               return safe_strncpy(buf, _("[NONE SET]"), sizeof(buf));
+       return (UNIX_print(sap->sa_data));
+}
+
+
+static struct aftype unix_aftype = {
+       "unix", "UNIX Domain", AF_UNIX, 0,
+       UNIX_print, UNIX_sprint, NULL, NULL,
+       NULL, NULL, NULL,
+       -1,
+       "/proc/net/unix"
+};
+#endif                                                 /* HAVE_AFUNIX */
+
+#if HAVE_AFINET
+
+#ifdef KEEP_UNUSED
+static void INET_reserror(char *text)
+{
+       herror(text);
+}
+
+/* Display an Internet socket address. */
+static char *INET_print(unsigned char *ptr)
+{
+       return (inet_ntoa((*(struct in_addr *) ptr)));
+}
+#endif                                                 /* KEEP_UNUSED */
+
+/* Display an Internet socket address. */
+static char *INET_sprint(struct sockaddr *sap, int numeric)
+{
+       static char buff[128];
+
+       if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
+               return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
+
+       if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap,
+                                         numeric, 0xffffff00) != 0)
+               return (NULL);
+
+       return (buff);
+}
+
+#ifdef KEEP_UNUSED
+static char *INET_sprintmask(struct sockaddr *sap, int numeric,
+                                                        unsigned int netmask)
+{
+       static char buff[128];
+
+       if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
+               return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
+       if (INET_rresolve(buff, sizeof(buff), (struct sockaddr_in *) sap,
+                                         numeric, netmask) != 0)
+               return (NULL);
+       return (buff);
+}
+
+static int INET_getsock(char *bufp, struct sockaddr *sap)
+{
+       char *sp = bufp, *bp;
+       unsigned int i;
+       unsigned val;
+       struct sockaddr_in *sin;
+
+       sin = (struct sockaddr_in *) sap;
+       sin->sin_family = AF_INET;
+       sin->sin_port = 0;
+
+       val = 0;
+       bp = (char *) &val;
+       for (i = 0; i < sizeof(sin->sin_addr.s_addr); i++) {
+               *sp = toupper(*sp);
+
+               if ((*sp >= 'A') && (*sp <= 'F'))
+                       bp[i] |= (int) (*sp - 'A') + 10;
+               else if ((*sp >= '0') && (*sp <= '9'))
+                       bp[i] |= (int) (*sp - '0');
+               else
+                       return (-1);
+
+               bp[i] <<= 4;
+               sp++;
+               *sp = toupper(*sp);
+
+               if ((*sp >= 'A') && (*sp <= 'F'))
+                       bp[i] |= (int) (*sp - 'A') + 10;
+               else if ((*sp >= '0') && (*sp <= '9'))
+                       bp[i] |= (int) (*sp - '0');
+               else
+                       return (-1);
+
+               sp++;
+       }
+       sin->sin_addr.s_addr = htonl(val);
+
+       return (sp - bufp);
+}
+
+static int INET_input(int type, char *bufp, struct sockaddr *sap)
+{
+       switch (type) {
+       case 1:
+               return (INET_getsock(bufp, sap));
+       case 256:
+               return (INET_resolve(bufp, (struct sockaddr_in *) sap, 1));
+       default:
+               return (INET_resolve(bufp, (struct sockaddr_in *) sap, 0));
+       }
+}
+
+static int INET_getnetmask(char *adr, struct sockaddr *m, char *name)
+{
+       struct sockaddr_in *mask = (struct sockaddr_in *) m;
+       char *slash, *end;
+       int prefix;
+
+       if ((slash = strchr(adr, '/')) == NULL)
+               return 0;
+
+       *slash++ = '\0';
+       prefix = strtoul(slash, &end, 0);
+       if (*end != '\0')
+               return -1;
+
+       if (name) {
+               sprintf(name, "/%d", prefix);
+       }
+       mask->sin_family = AF_INET;
+       mask->sin_addr.s_addr = htonl(~(0xffffffffU >> prefix));
+       return 1;
+}
+#endif                                                 /* KEEP_UNUSED */
+
+static struct aftype inet_aftype = {
+       "inet", "DARPA Internet", AF_INET, sizeof(unsigned long),
+       NULL /* UNUSED INET_print */ , INET_sprint,
+       NULL /* UNUSED INET_input */ , NULL /* UNUSED INET_reserror */ ,
+       NULL /*INET_rprint */ , NULL /*INET_rinput */ ,
+       NULL /* UNUSED INET_getnetmask */ ,
+       -1,
+       NULL
+};
+
+#endif                                                 /* HAVE_AFINET */
+
+#if HAVE_AFINET6
+
+#ifdef KEEP_UNUSED
+static void INET6_reserror(char *text)
+{
+       herror(text);
+}
+
+/* Display an Internet socket address. */
+static char *INET6_print(unsigned char *ptr)
+{
+       static char name[80];
+
+       inet_ntop(AF_INET6, (struct in6_addr *) ptr, name, 80);
+       return name;
+}
+#endif                                                 /* KEEP_UNUSED */
+
+/* Display an Internet socket address. */
+/* dirty! struct sockaddr usually doesn't suffer for inet6 addresses, fst. */
+static char *INET6_sprint(struct sockaddr *sap, int numeric)
+{
+       static char buff[128];
+
+       if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
+               return safe_strncpy(buff, _("[NONE SET]"), sizeof(buff));
+       if (INET6_rresolve
+               (buff, sizeof(buff), (struct sockaddr_in6 *) sap, numeric) != 0)
+               return safe_strncpy(buff, _("[UNKNOWN]"), sizeof(buff));
+       return (buff);
+}
+
+#ifdef KEEP_UNUSED
+static int INET6_getsock(char *bufp, struct sockaddr *sap)
+{
+       struct sockaddr_in6 *sin6;
+
+       sin6 = (struct sockaddr_in6 *) sap;
+       sin6->sin6_family = AF_INET6;
+       sin6->sin6_port = 0;
+
+       if (inet_pton(AF_INET6, bufp, sin6->sin6_addr.s6_addr) <= 0)
+               return (-1);
+
+       return 16;                      /* ?;) */
+}
+
+static int INET6_input(int type, char *bufp, struct sockaddr *sap)
+{
+       switch (type) {
+       case 1:
+               return (INET6_getsock(bufp, sap));
+       default:
+               return (INET6_resolve(bufp, (struct sockaddr_in6 *) sap));
+       }
+}
+#endif                                                 /* KEEP_UNUSED */
+
+static struct aftype inet6_aftype = {
+       "inet6", "IPv6", AF_INET6, sizeof(struct in6_addr),
+       NULL /* UNUSED INET6_print */ , INET6_sprint,
+       NULL /* UNUSED INET6_input */ , NULL /* UNUSED INET6_reserror */ ,
+       NULL /*INET6_rprint */ , NULL /*INET6_rinput */ ,
+       NULL /* UNUSED INET6_getnetmask */ ,
+       -1,
+       NULL
+};
+
+#endif                                                 /* HAVE_AFINET6 */
+
+/* Display an UNSPEC address. */
+static char *UNSPEC_print(unsigned char *ptr)
+{
+       static char buff[sizeof(struct sockaddr) * 3 + 1];
+       char *pos;
+       unsigned int i;
+
+       pos = buff;
+       for (i = 0; i < sizeof(struct sockaddr); i++) {
+               /* careful -- not every libc's sprintf returns # bytes written */
+               sprintf(pos, "%02X-", (*ptr++ & 0377));
+               pos += 3;
+       }
+       /* Erase trailing "-".  Works as long as sizeof(struct sockaddr) != 0 */
+       *--pos = '\0';
+       return (buff);
+}
+
+/* Display an UNSPEC socket address. */
+static char *UNSPEC_sprint(struct sockaddr *sap, int numeric)
+{
+       static char buf[64];
+
+       if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
+               return safe_strncpy(buf, _("[NONE SET]"), sizeof(buf));
+       return (UNSPEC_print(sap->sa_data));
+}
+
+static struct aftype unspec_aftype = {
+       "unspec", "UNSPEC", AF_UNSPEC, 0,
+       UNSPEC_print, UNSPEC_sprint, NULL, NULL,
+       NULL,
+};
+
+static struct aftype * const aftypes[] = {
+#if HAVE_AFUNIX
+       &unix_aftype,
+#endif
+#if HAVE_AFINET
+       &inet_aftype,
+#endif
+#if HAVE_AFINET6
+       &inet6_aftype,
+#endif
+#if HAVE_AFAX25
+       &ax25_aftype,
+#endif
+#if HAVE_AFNETROM
+       &netrom_aftype,
+#endif
+#if HAVE_AFROSE
+       &rose_aftype,
+#endif
+#if HAVE_AFIPX
+       &ipx_aftype,
+#endif
+#if HAVE_AFATALK
+       &ddp_aftype,
+#endif
+#if HAVE_AFECONET
+       &ec_aftype,
+#endif
+#if HAVE_AFASH
+       &ash_aftype,
+#endif
+#if HAVE_AFX25
+       &x25_aftype,
+#endif
+       &unspec_aftype,
+       NULL
+};
+
+#ifdef KEEP_UNUSED
+static short sVafinit = 0;
+
+static void afinit()
+{
+       unspec_aftype.title = _("UNSPEC");
+#if HAVE_AFUNIX
+       unix_aftype.title = _("UNIX Domain");
+#endif
+#if HAVE_AFINET
+       inet_aftype.title = _("DARPA Internet");
+#endif
+#if HAVE_AFINET6
+       inet6_aftype.title = _("IPv6");
+#endif
+#if HAVE_AFAX25
+       ax25_aftype.title = _("AMPR AX.25");
+#endif
+#if HAVE_AFNETROM
+       netrom_aftype.title = _("AMPR NET/ROM");
+#endif
+#if HAVE_AFIPX
+       ipx_aftype.title = _("Novell IPX");
+#endif
+#if HAVE_AFATALK
+       ddp_aftype.title = _("Appletalk DDP");
+#endif
+#if HAVE_AFECONET
+       ec_aftype.title = _("Econet");
+#endif
+#if HAVE_AFX25
+       x25_aftype.title = _("CCITT X.25");
+#endif
+#if HAVE_AFROSE
+       rose_aftype.title = _("AMPR ROSE");
+#endif
+#if HAVE_AFASH
+       ash_aftype.title = _("Ash");
+#endif
+       sVafinit = 1;
+}
+
+static int aftrans_opt(const char *arg)
+{
+       struct aftrans_t *paft;
+       char *tmp1, *tmp2;
+       char buf[256];
+
+       safe_strncpy(buf, arg, sizeof(buf));
+
+       tmp1 = buf;
+
+       while (tmp1) {
+
+               tmp2 = strchr(tmp1, ',');
+
+               if (tmp2)
+                       *(tmp2++) = '\0';
+
+               paft = aftrans;
+               for (paft = aftrans; paft->alias; paft++) {
+                       if (strcmp(tmp1, paft->alias))
+                               continue;
+                       if (strlen(paft->name) + strlen(afname) + 1 >= sizeof(afname)) {
+                               bb_error_msg(_("Too many address family arguments."));
+                               return (0);
+                       }
+                       if (paft->flag)
+                               (*paft->flag)++;
+                       if (afname[0])
+                               strcat(afname, ",");
+                       strcat(afname, paft->name);
+                       break;
+               }
+               if (!paft->alias) {
+                       bb_error_msg(_("Unknown address family `%s'."), tmp1);
+                       return (1);
+               }
+               tmp1 = tmp2;
+       }
+
+       return (0);
+}
+
+/* set the default AF list from the program name or a constant value    */
+static void aftrans_def(char *tool, char *argv0, char *dflt)
+{
+       char *tmp;
+       char *buf;
+
+       strcpy(afname, dflt);
+
+       if (!(tmp = strrchr(argv0, '/')))
+               tmp = argv0;    /* no slash?! */
+       else
+               tmp++;
+
+       if (!(buf = strdup(tmp)))
+               return;
+
+       if (strlen(tool) >= strlen(tmp)) {
+               free(buf);
+               return;
+       }
+       tmp = buf + (strlen(tmp) - strlen(tool));
+
+       if (strcmp(tmp, tool) != 0) {
+               free(buf);
+               return;
+       }
+       *tmp = '\0';
+       if ((tmp = strchr(buf, '_')))
+               *tmp = '\0';
+
+       afname[0] = '\0';
+       if (aftrans_opt(buf))
+               strcpy(afname, buf);
+
+       free(buf);
+}
+
+/* Check our protocol family table for this family. */
+static struct aftype *get_aftype(const char *name)
+{
+       struct aftype * const *afp;
+
+#ifdef KEEP_UNUSED
+       if (!sVafinit)
+               afinit();
+#endif                                                 /* KEEP_UNUSED */
+
+       afp = aftypes;
+       while (*afp != NULL) {
+               if (!strcmp((*afp)->name, name))
+                       return (*afp);
+               afp++;
+       }
+       if (strchr(name, ','))
+               bb_error_msg(_("Please don't supply more than one address family."));
+       return (NULL);
+}
+#endif                                                 /* KEEP_UNUSED */
+
+/* Check our protocol family table for this family. */
+static struct aftype *get_afntype(int af)
+{
+       struct aftype * const *afp;
+
+#ifdef KEEP_UNUSED
+       if (!sVafinit)
+               afinit();
+#endif                                                 /* KEEP_UNUSED */
+
+       afp = aftypes;
+       while (*afp != NULL) {
+               if ((*afp)->af == af)
+                       return (*afp);
+               afp++;
+       }
+       return (NULL);
+}
+
+/* Check our protocol family table for this family and return its socket */
+static int get_socket_for_af(int af)
+{
+       struct aftype * const *afp;
+
+#ifdef KEEP_UNUSED
+       if (!sVafinit)
+               afinit();
+#endif                                                 /* KEEP_UNUSED */
+
+       afp = aftypes;
+       while (*afp != NULL) {
+               if ((*afp)->af == af)
+                       return (*afp)->fd;
+               afp++;
+       }
+       return -1;
+}
+
+#ifdef KEEP_UNUSED
+/* type: 0=all, 1=getroute */
+static void print_aflist(int type)
+{
+       int count = 0;
+       char *txt;
+       struct aftype * const *afp;
+
+#ifdef KEEP_UNUSED
+       if (!sVafinit)
+               afinit();
+#endif                                                 /* KEEP_UNUSED */
+
+       afp = aftypes;
+       while (*afp != NULL) {
+               if ((type == 1 && ((*afp)->rprint == NULL)) || ((*afp)->af == 0)) {
+                       afp++;
+                       continue;
+               }
+               if ((count % 3) == 0)
+                       fprintf(stderr, count ? "\n    " : "    ");
+               txt = (*afp)->name;
+               if (!txt)
+                       txt = "..";
+               fprintf(stderr, "%s (%s) ", txt, _((*afp)->title));
+               count++;
+               afp++;
+       }
+       fprintf(stderr, "\n");
+}
+#endif                                                 /* KEEP_UNUSED */
+
+struct user_net_device_stats {
+       unsigned long long rx_packets;  /* total packets received       */
+       unsigned long long tx_packets;  /* total packets transmitted    */
+       unsigned long long rx_bytes;    /* total bytes received         */
+       unsigned long long tx_bytes;    /* total bytes transmitted      */
+       unsigned long rx_errors;        /* bad packets received         */
+       unsigned long tx_errors;        /* packet transmit problems     */
+       unsigned long rx_dropped;       /* no space in linux buffers    */
+       unsigned long tx_dropped;       /* no space available in linux  */
+       unsigned long rx_multicast;     /* multicast packets received   */
+       unsigned long rx_compressed;
+       unsigned long tx_compressed;
+       unsigned long collisions;
+
+       /* detailed rx_errors: */
+       unsigned long rx_length_errors;
+       unsigned long rx_over_errors;   /* receiver ring buff overflow  */
+       unsigned long rx_crc_errors;    /* recved pkt with crc error    */
+       unsigned long rx_frame_errors;  /* recv'd frame alignment error */
+       unsigned long rx_fifo_errors;   /* recv'r fifo overrun          */
+       unsigned long rx_missed_errors; /* receiver missed packet     */
+       /* detailed tx_errors */
+       unsigned long tx_aborted_errors;
+       unsigned long tx_carrier_errors;
+       unsigned long tx_fifo_errors;
+       unsigned long tx_heartbeat_errors;
+       unsigned long tx_window_errors;
+};
+
+struct interface {
+       struct interface *next, *prev;
+       char name[IFNAMSIZ];    /* interface name        */
+       short type;                     /* if type               */
+       short flags;            /* various flags         */
+       int metric;                     /* routing metric        */
+       int mtu;                        /* MTU value             */
+       int tx_queue_len;       /* transmit queue length */
+       struct ifmap map;       /* hardware setup        */
+       struct sockaddr addr;   /* IP address            */
+       struct sockaddr dstaddr;        /* P-P IP address        */
+       struct sockaddr broadaddr;      /* IP broadcast address  */
+       struct sockaddr netmask;        /* IP network mask       */
+       struct sockaddr ipxaddr_bb;     /* IPX network address   */
+       struct sockaddr ipxaddr_sn;     /* IPX network address   */
+       struct sockaddr ipxaddr_e3;     /* IPX network address   */
+       struct sockaddr ipxaddr_e2;     /* IPX network address   */
+       struct sockaddr ddpaddr;        /* Appletalk DDP address */
+       struct sockaddr ecaddr; /* Econet address        */
+       int has_ip;
+       int has_ipx_bb;
+       int has_ipx_sn;
+       int has_ipx_e3;
+       int has_ipx_e2;
+       int has_ax25;
+       int has_ddp;
+       int has_econet;
+       char hwaddr[32];        /* HW address            */
+       int statistics_valid;
+       struct user_net_device_stats stats;     /* statistics            */
+       int keepalive;          /* keepalive value for SLIP */
+       int outfill;            /* outfill value for SLIP */
+};
+
+
+int interface_opt_a = 0;       /* show all interfaces          */
+
+#ifdef KEEP_UNUSED
+static int opt_i = 0;  /* show the statistics          */
+static int opt_v = 0;  /* debugging output flag        */
+
+static int addr_family = 0;    /* currently selected AF        */
+#endif                                                 /* KEEP_UNUSED */
+
+static struct interface *int_list, *int_last;
+static int skfd = -1;  /* generic raw socket desc.     */
+
+
+static int sockets_open(int family)
+{
+       struct aftype * const *aft;
+       int sfd = -1;
+       static int force = -1;
+
+       if (force < 0) {
+               force = 0;
+               if (get_kernel_revision() < KRELEASE(2, 1, 0))
+                       force = 1;
+               if (access("/proc/net", R_OK))
+                       force = 1;
+       }
+       for (aft = aftypes; *aft; aft++) {
+               struct aftype *af = *aft;
+               int type = SOCK_DGRAM;
+
+               if (af->af == AF_UNSPEC)
+                       continue;
+               if (family && family != af->af)
+                       continue;
+               if (af->fd != -1) {
+                       sfd = af->fd;
+                       continue;
+               }
+               /* Check some /proc file first to not stress kmod */
+               if (!family && !force && af->flag_file) {
+                       if (access(af->flag_file, R_OK))
+                               continue;
+               }
+#if HAVE_AFNETROM
+               if (af->af == AF_NETROM)
+                       type = SOCK_SEQPACKET;
+#endif
+#if HAVE_AFX25
+               if (af->af == AF_X25)
+                       type = SOCK_SEQPACKET;
+#endif
+               af->fd = socket(af->af, type, 0);
+               if (af->fd >= 0)
+                       sfd = af->fd;
+       }
+       if (sfd < 0) {
+               bb_error_msg(_("No usable address families found."));
+       }
+       return sfd;
+}
+
+#ifdef CONFIG_FEATURE_CLEAN_UP
+static void sockets_close(void)
+{
+       struct aftype * const *aft;
+       for (aft = aftypes; *aft != NULL; aft++) {
+               struct aftype *af = *aft;
+               if( af->fd != -1 ) {
+                       close(af->fd);
+                       af->fd = -1;
+               }
+       }
+}
+#endif
+
+/* like strcmp(), but knows about numbers */
+static int nstrcmp(const char *a, const char *b)
+{
+       const char *a_ptr = a;
+       const char *b_ptr = b;
+
+       while (*a == *b) {
+               if (*a == '\0') {
+                       return 0;
+               }
+               if (!isdigit(*a) && isdigit(*(a+1))) {
+                       a_ptr = a+1;
+                       b_ptr = b+1;
+               }
+               a++;
+               b++;
+       }
+
+       if (isdigit(*a) && isdigit(*b)) {
+               return atoi(a_ptr) > atoi(b_ptr) ? 1 : -1;
+       }
+       return *a - *b;
+}
+
+static struct interface *add_interface(char *name)
+{
+       struct interface *ife, **nextp, *new;
+
+       for (ife = int_last; ife; ife = ife->prev) {
+               int n = nstrcmp(ife->name, name);
+
+               if (n == 0)
+                       return ife;
+               if (n < 0)
+                       break;
+       }
+       new(new);
+       safe_strncpy(new->name, name, IFNAMSIZ);
+       nextp = ife ? &ife->next : &int_list;
+       new->prev = ife;
+       new->next = *nextp;
+       if (new->next)
+               new->next->prev = new;
+       else
+               int_last = new;
+       *nextp = new;
+       return new;
+}
+
+
+static int if_readconf(void)
+{
+       int numreqs = 30;
+       struct ifconf ifc;
+       struct ifreq *ifr;
+       int n, err = -1;
+       int skfd2;
+
+       /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets
+          (as of 2.1.128) */
+       skfd2 = get_socket_for_af(AF_INET);
+       if (skfd2 < 0) {
+               bb_perror_msg(("warning: no inet socket available"));
+               /* Try to soldier on with whatever socket we can get hold of.  */
+               skfd2 = sockets_open(0);
+               if (skfd2 < 0)
+                       return -1;
+       }
+
+       ifc.ifc_buf = NULL;
+       for (;;) {
+               ifc.ifc_len = sizeof(struct ifreq) * numreqs;
+               ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len);
+
+               if (ioctl(skfd2, SIOCGIFCONF, &ifc) < 0) {
+                       perror("SIOCGIFCONF");
+                       goto out;
+               }
+               if (ifc.ifc_len == sizeof(struct ifreq) * numreqs) {
+                       /* assume it overflowed and try again */
+                       numreqs += 10;
+                       continue;
+               }
+               break;
+       }
+
+       ifr = ifc.ifc_req;
+       for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) {
+               add_interface(ifr->ifr_name);
+               ifr++;
+       }
+       err = 0;
+
+  out:
+       free(ifc.ifc_buf);
+       return err;
+}
+
+static char *get_name(char *name, char *p)
+{
+       /* Extract <name>[:<alias>] from nul-terminated p where p matches
+          <name>[:<alias>]: after leading whitespace.
+          If match is not made, set name empty and return unchanged p */
+       int namestart=0, nameend=0, aliasend;
+       while (isspace(p[namestart]))
+               namestart++;
+       nameend=namestart;
+       while (p[nameend] && p[nameend]!=':' && !isspace(p[nameend]))
+               nameend++;
+       if (p[nameend]==':') {
+               aliasend=nameend+1;
+               while (p[aliasend] && isdigit(p[aliasend]))
+                       aliasend++;
+               if (p[aliasend]==':') {
+                       nameend=aliasend;
+               }
+               if ((nameend-namestart)<IFNAMSIZ) {
+                       memcpy(name,&p[namestart],nameend-namestart);
+                       name[nameend-namestart]='\0';
+                       p=&p[nameend];
+               } else {
+                       /* Interface name too large */
+                       name[0]='\0';
+               }
+       } else {
+               /* first ':' not found - return empty */
+               name[0]='\0';
+       }
+       return p + 1;
+}
+
+/* If scanf supports size qualifiers for %n conversions, then we can
+ * use a modified fmt that simply stores the position in the fields
+ * having no associated fields in the proc string.  Of course, we need
+ * to zero them again when we're done.  But that is smaller than the
+ * old approach of multiple scanf occurrences with large numbers of
+ * args. */
+
+/* static const char *ss_fmt[] = { */
+/*     "%Ln%Lu%lu%lu%lu%lu%ln%ln%Ln%Lu%lu%lu%lu%lu%lu", */
+/*     "%Lu%Lu%lu%lu%lu%lu%ln%ln%Lu%Lu%lu%lu%lu%lu%lu", */
+/*     "%Lu%Lu%lu%lu%lu%lu%lu%lu%Lu%Lu%lu%lu%lu%lu%lu%lu" */
+/* }; */
+
+       /* Lie about the size of the int pointed to for %n. */
+#if INT_MAX == LONG_MAX
+static const char * const ss_fmt[] = {
+       "%n%Lu%u%u%u%u%n%n%n%Lu%u%u%u%u%u",
+       "%Lu%Lu%u%u%u%u%n%n%Lu%Lu%u%u%u%u%u",
+       "%Lu%Lu%u%u%u%u%u%u%Lu%Lu%u%u%u%u%u%u"
+};
+#else
+static const char * const ss_fmt[] = {
+       "%n%Lu%lu%lu%lu%lu%n%n%n%Lu%lu%lu%lu%lu%lu",
+       "%Lu%Lu%lu%lu%lu%lu%n%n%Lu%Lu%lu%lu%lu%lu%lu",
+       "%Lu%Lu%lu%lu%lu%lu%lu%lu%Lu%Lu%lu%lu%lu%lu%lu%lu"
+};
+
+#endif
+
+static void get_dev_fields(char *bp, struct interface *ife, int procnetdev_vsn)
+{
+       memset(&ife->stats, 0, sizeof(struct user_net_device_stats));
+
+       sscanf(bp, ss_fmt[procnetdev_vsn],
+                  &ife->stats.rx_bytes, /* missing for 0 */
+                  &ife->stats.rx_packets,
+                  &ife->stats.rx_errors,
+                  &ife->stats.rx_dropped,
+                  &ife->stats.rx_fifo_errors,
+                  &ife->stats.rx_frame_errors,
+                  &ife->stats.rx_compressed, /* missing for <= 1 */
+                  &ife->stats.rx_multicast, /* missing for <= 1 */
+                  &ife->stats.tx_bytes, /* missing for 0 */
+                  &ife->stats.tx_packets,
+                  &ife->stats.tx_errors,
+                  &ife->stats.tx_dropped,
+                  &ife->stats.tx_fifo_errors,
+                  &ife->stats.collisions,
+                  &ife->stats.tx_carrier_errors,
+                  &ife->stats.tx_compressed /* missing for <= 1 */
+                  );
+
+       if (procnetdev_vsn <= 1) {
+               if (procnetdev_vsn == 0) {
+                       ife->stats.rx_bytes = 0;
+                       ife->stats.tx_bytes = 0;
+               }
+               ife->stats.rx_multicast = 0;
+               ife->stats.rx_compressed = 0;
+               ife->stats.tx_compressed = 0;
+       }
+}
+
+static inline int procnetdev_version(char *buf)
+{
+       if (strstr(buf, "compressed"))
+               return 2;
+       if (strstr(buf, "bytes"))
+               return 1;
+       return 0;
+}
+
+static int if_readlist_proc(char *target)
+{
+       static int proc_read;
+       FILE *fh;
+       char buf[512];
+       struct interface *ife;
+       int err, procnetdev_vsn;
+
+       if (proc_read)
+               return 0;
+       if (!target)
+               proc_read = 1;
+
+       fh = fopen(_PATH_PROCNET_DEV, "r");
+       if (!fh) {
+               bb_perror_msg(_("Warning: cannot open %s. Limited output."), _PATH_PROCNET_DEV);
+               return if_readconf();
+       }
+       fgets(buf, sizeof buf, fh);     /* eat line */
+       fgets(buf, sizeof buf, fh);
+
+       procnetdev_vsn = procnetdev_version(buf);
+
+       err = 0;
+       while (fgets(buf, sizeof buf, fh)) {
+               char *s, name[128];
+
+               s = get_name(name, buf);
+               ife = add_interface(name);
+               get_dev_fields(s, ife, procnetdev_vsn);
+               ife->statistics_valid = 1;
+               if (target && !strcmp(target, name))
+                       break;
+       }
+       if (ferror(fh)) {
+               perror(_PATH_PROCNET_DEV);
+               err = -1;
+               proc_read = 0;
+       }
+       fclose(fh);
+       return err;
+}
+
+static int if_readlist(void)
+{
+       int err = if_readlist_proc(NULL);
+
+       if (!err)
+               err = if_readconf();
+       return err;
+}
+
+static int for_all_interfaces(int (*doit) (struct interface *, void *),
+                                                         void *cookie)
+{
+       struct interface *ife;
+
+       if (!int_list && (if_readlist() < 0))
+               return -1;
+       for (ife = int_list; ife; ife = ife->next) {
+               int err = doit(ife, cookie);
+
+               if (err)
+                       return err;
+       }
+       return 0;
+}
+
+/* Support for fetching an IPX address */
+
+#if HAVE_AFIPX
+static int ipx_getaddr(int sock, int ft, struct ifreq *ifr)
+{
+       ((struct sockaddr_ipx *) &ifr->ifr_addr)->sipx_type = ft;
+       return ioctl(sock, SIOCGIFADDR, ifr);
+}
+#endif
+
+
+/* Fetch the interface configuration from the kernel. */
+static int if_fetch(struct interface *ife)
+{
+       struct ifreq ifr;
+       int fd;
+       char *ifname = ife->name;
+
+       strcpy(ifr.ifr_name, ifname);
+       if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0)
+               return (-1);
+       ife->flags = ifr.ifr_flags;
+
+       strcpy(ifr.ifr_name, ifname);
+       if (ioctl(skfd, SIOCGIFHWADDR, &ifr) < 0)
+               memset(ife->hwaddr, 0, 32);
+       else
+               memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8);
+
+       ife->type = ifr.ifr_hwaddr.sa_family;
+
+       strcpy(ifr.ifr_name, ifname);
+       if (ioctl(skfd, SIOCGIFMETRIC, &ifr) < 0)
+               ife->metric = 0;
+       else
+               ife->metric = ifr.ifr_metric;
+
+       strcpy(ifr.ifr_name, ifname);
+       if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0)
+               ife->mtu = 0;
+       else
+               ife->mtu = ifr.ifr_mtu;
+
+#ifdef HAVE_HWSLIP
+       if (ife->type == ARPHRD_SLIP || ife->type == ARPHRD_CSLIP ||
+               ife->type == ARPHRD_SLIP6 || ife->type == ARPHRD_CSLIP6 ||
+               ife->type == ARPHRD_ADAPT) {
+#ifdef SIOCGOUTFILL
+               strcpy(ifr.ifr_name, ifname);
+               if (ioctl(skfd, SIOCGOUTFILL, &ifr) < 0)
+                       ife->outfill = 0;
+               else
+                       ife->outfill = (unsigned int) ifr.ifr_data;
+#endif
+#ifdef SIOCGKEEPALIVE
+               strcpy(ifr.ifr_name, ifname);
+               if (ioctl(skfd, SIOCGKEEPALIVE, &ifr) < 0)
+                       ife->keepalive = 0;
+               else
+                       ife->keepalive = (unsigned int) ifr.ifr_data;
+#endif
+       }
+#endif
+
+#ifdef SIOCGIFMAP
+       strcpy(ifr.ifr_name, ifname);
+       if (ioctl(skfd, SIOCGIFMAP, &ifr) == 0)
+               ife->map = ifr.ifr_map;
+       else
+#endif
+               memset(&ife->map, 0, sizeof(struct ifmap));
+
+#ifdef HAVE_TXQUEUELEN
+       strcpy(ifr.ifr_name, ifname);
+       if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) < 0)
+               ife->tx_queue_len = -1; /* unknown value */
+       else
+               ife->tx_queue_len = ifr.ifr_qlen;
+#else
+       ife->tx_queue_len = -1; /* unknown value */
+#endif
+
+#if HAVE_AFINET
+       /* IPv4 address? */
+       fd = get_socket_for_af(AF_INET);
+       if (fd >= 0) {
+               strcpy(ifr.ifr_name, ifname);
+               ifr.ifr_addr.sa_family = AF_INET;
+               if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
+                       ife->has_ip = 1;
+                       ife->addr = ifr.ifr_addr;
+                       strcpy(ifr.ifr_name, ifname);
+                       if (ioctl(fd, SIOCGIFDSTADDR, &ifr) < 0)
+                               memset(&ife->dstaddr, 0, sizeof(struct sockaddr));
+                       else
+                               ife->dstaddr = ifr.ifr_dstaddr;
+
+                       strcpy(ifr.ifr_name, ifname);
+                       if (ioctl(fd, SIOCGIFBRDADDR, &ifr) < 0)
+                               memset(&ife->broadaddr, 0, sizeof(struct sockaddr));
+                       else
+                               ife->broadaddr = ifr.ifr_broadaddr;
+
+                       strcpy(ifr.ifr_name, ifname);
+                       if (ioctl(fd, SIOCGIFNETMASK, &ifr) < 0)
+                               memset(&ife->netmask, 0, sizeof(struct sockaddr));
+                       else
+                               ife->netmask = ifr.ifr_netmask;
+               } else
+                       memset(&ife->addr, 0, sizeof(struct sockaddr));
+       }
+#endif
+
+#if HAVE_AFATALK
+       /* DDP address maybe ? */
+       fd = get_socket_for_af(AF_APPLETALK);
+       if (fd >= 0) {
+               strcpy(ifr.ifr_name, ifname);
+               if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
+                       ife->ddpaddr = ifr.ifr_addr;
+                       ife->has_ddp = 1;
+               }
+       }
+#endif
+
+#if HAVE_AFIPX
+       /* Look for IPX addresses with all framing types */
+       fd = get_socket_for_af(AF_IPX);
+       if (fd >= 0) {
+               strcpy(ifr.ifr_name, ifname);
+               if (!ipx_getaddr(fd, IPX_FRAME_ETHERII, &ifr)) {
+                       ife->has_ipx_bb = 1;
+                       ife->ipxaddr_bb = ifr.ifr_addr;
+               }
+               strcpy(ifr.ifr_name, ifname);
+               if (!ipx_getaddr(fd, IPX_FRAME_SNAP, &ifr)) {
+                       ife->has_ipx_sn = 1;
+                       ife->ipxaddr_sn = ifr.ifr_addr;
+               }
+               strcpy(ifr.ifr_name, ifname);
+               if (!ipx_getaddr(fd, IPX_FRAME_8023, &ifr)) {
+                       ife->has_ipx_e3 = 1;
+                       ife->ipxaddr_e3 = ifr.ifr_addr;
+               }
+               strcpy(ifr.ifr_name, ifname);
+               if (!ipx_getaddr(fd, IPX_FRAME_8022, &ifr)) {
+                       ife->has_ipx_e2 = 1;
+                       ife->ipxaddr_e2 = ifr.ifr_addr;
+               }
+       }
+#endif
+
+#if HAVE_AFECONET
+       /* Econet address maybe? */
+       fd = get_socket_for_af(AF_ECONET);
+       if (fd >= 0) {
+               strcpy(ifr.ifr_name, ifname);
+               if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
+                       ife->ecaddr = ifr.ifr_addr;
+                       ife->has_econet = 1;
+               }
+       }
+#endif
+
+       return 0;
+}
+
+
+static int do_if_fetch(struct interface *ife)
+{
+       if (if_fetch(ife) < 0) {
+               char *errmsg;
+
+               if (errno == ENODEV) {
+                       /* Give better error message for this case. */
+                       errmsg = _("Device not found");
+               } else {
+                       errmsg = strerror(errno);
+               }
+               bb_error_msg(_("%s: error fetching interface information: %s"),
+                               ife->name, errmsg);
+               return -1;
+       }
+       return 0;
+}
+
+/* This structure defines hardware protocols and their handlers. */
+struct hwtype {
+       const char *name;
+       const char *title;
+       int type;
+       int alen;
+       char *(*print) (unsigned char *);
+       int (*input) (char *, struct sockaddr *);
+       int (*activate) (int fd);
+       int suppress_null_addr;
+};
+
+static const struct hwtype unspec_hwtype = {
+       "unspec", "UNSPEC", -1, 0,
+       UNSPEC_print, NULL, NULL
+};
+
+static const struct hwtype loop_hwtype = {
+       "loop", "Local Loopback", ARPHRD_LOOPBACK, 0,
+       NULL, NULL, NULL
+};
+
+#if HAVE_HWETHER
+#include <net/if_arp.h>
+
+#if (__GLIBC__ >=2 && __GLIBC_MINOR >= 1) || defined(_NEWLIB_VERSION)
+#include <net/ethernet.h>
+#else
+#include <linux/if_ether.h>
+#endif
+
+/* Display an Ethernet address in readable format. */
+static char *pr_ether(unsigned char *ptr)
+{
+       static char buff[64];
+
+       snprintf(buff, sizeof(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);
+}
+
+#ifdef KEEP_UNUSED
+/* Input an Ethernet address and convert to binary. */
+static int in_ether(char *bufp, struct sockaddr *sap)
+{
+       unsigned char *ptr;
+       char c, *orig;
+       int i;
+       unsigned val;
+
+       sap->sa_family = ether_hwtype.type;
+       ptr = sap->sa_data;
+
+       i = 0;
+       orig = bufp;
+       while ((*bufp != '\0') && (i < ETH_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
+                       bb_error_msg(_("in_ether(%s): invalid ether 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 if (c == ':' || c == 0)
+                       val >>= 4;
+               else {
+#ifdef DEBUG
+                       bb_error_msg(_("in_ether(%s): invalid ether address!"), orig);
+#endif
+                       errno = EINVAL;
+                       return (-1);
+               }
+               if (c != 0)
+                       bufp++;
+               *ptr++ = (unsigned char) (val & 0377);
+               i++;
+
+               /* We might get a semicolon here - not required. */
+               if (*bufp == ':') {
+#ifdef DEBUG
+                       if (i == ETH_ALEN) {
+                               bb_error_msg(_("in_ether(%s): trailing : ignored!"), orig);
+                       }
+#endif
+                       bufp++;
+               }
+       }
+
+#ifdef DEBUG
+       /* That's it.  Any trailing junk? */
+       if ((i == ETH_ALEN) && (*bufp != '\0')) {
+               bb_error_msg(_("in_ether(%s): trailing junk!"), orig);
+               errno = EINVAL;
+               return (-1);
+       }
+       bb_error_msg("in_ether(%s): %s", orig, pr_ether(sap->sa_data));
+#endif
+
+       return (0);
+}
+#endif                                                 /* KEEP_UNUSED */
+
+
+static const struct hwtype ether_hwtype = {
+       "ether", "Ethernet", ARPHRD_ETHER, ETH_ALEN,
+       pr_ether, NULL /* UNUSED in_ether */ , NULL
+};
+
+
+#endif                                                 /* HAVE_HWETHER */
+
+
+#if HAVE_HWPPP
+
+#include <net/if_arp.h>
+
+#ifdef KEEP_UNUSED
+/* Start the PPP encapsulation on the file descriptor. */
+static int do_ppp(int fd)
+{
+       bb_error_msg(_("You cannot start PPP with this program."));
+       return -1;
+}
+#endif                                                 /* KEEP_UNUSED */
+
+static const struct hwtype ppp_hwtype = {
+       "ppp", "Point-Point Protocol", ARPHRD_PPP, 0,
+       NULL, NULL, NULL /* UNUSED do_ppp */ , 0
+};
+
+
+#endif                                                 /* HAVE_PPP */
+
+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
+       &unspec_hwtype,
+       NULL
+};
+
+#ifdef KEEP_UNUSED
+static short sVhwinit = 0;
+
+static void hwinit()
+{
+       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
+       sVhwinit = 1;
+}
+#endif                                                 /* KEEP_UNUSED */
+
+#ifdef IFF_PORTSEL
+#if 0
+static const char * const if_port_text[][4] = {
+       /* Keep in step with <linux/netdevice.h> */
+       {"unknown", NULL, NULL, NULL},
+       {"10base2", "bnc", "coax", NULL},
+       {"10baseT", "utp", "tpe", NULL},
+       {"AUI", "thick", "db15", NULL},
+       {"100baseT", NULL, NULL, NULL},
+       {"100baseTX", NULL, NULL, NULL},
+       {"100baseFX", NULL, NULL, NULL},
+       {NULL, NULL, NULL, NULL},
+};
+#else
+static const char * const if_port_text[] = {
+       /* Keep in step with <linux/netdevice.h> */
+       "unknown",
+       "10base2",
+       "10baseT",
+       "AUI",
+       "100baseT",
+       "100baseTX",
+       "100baseFX",
+       NULL
+};
+#endif
+#endif
+
+/* Check our hardware type table for this type. */
+static const struct hwtype *get_hwntype(int type)
+{
+       const struct hwtype * const *hwp;
+
+#ifdef KEEP_UNUSED
+       if (!sVhwinit)
+               hwinit();
+#endif                                                 /* KEEP_UNUSED */
+
+       hwp = hwtypes;
+       while (*hwp != NULL) {
+               if ((*hwp)->type == type)
+                       return (*hwp);
+               hwp++;
+       }
+       return (NULL);
+}
+
+/* return 1 if address is all zeros */
+static 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;
+}
+
+static const char TRext[] = "\0\0\0Ki\0Mi\0Gi\0Ti";
+
+static void print_bytes_scaled(unsigned long long ull, const char *end)
+{
+       unsigned long long int_part;
+       const char *ext;
+       unsigned int frac_part;
+       int i;
+
+       frac_part = 0;
+       ext = TRext;
+       int_part = ull;
+       i = 4;
+       do {
+#if 0
+               /* This does correct rounding and is a little larger.  But it
+                * uses KiB as the smallest displayed unit. */
+               if ((int_part < (1024*1024 - 51)) || !--i) {
+                       i = 0;
+                       int_part += 51;         /* 1024*.05 = 51.2 */
+                       frac_part = ((((unsigned int) int_part) & (1024-1)) * 10) / 1024;
+               }
+               int_part /= 1024;
+               ext += 3;       /* KiB, MiB, GiB, TiB */
+#else
+               if (int_part >= 1024) {
+                       frac_part = ((((unsigned int) int_part) & (1024-1)) * 10) / 1024;
+                       int_part /= 1024;
+                       ext += 3;       /* KiB, MiB, GiB, TiB */
+               }
+               --i;
+#endif
+       } while (i);
+
+       printf("X bytes:%Lu (%Lu.%u %sB)%s", ull, int_part, frac_part, ext, end);
+}
+
+static const char * const ife_print_flags_strs[] = {
+       "UP ",
+       "BROADCAST ",
+       "DEBUG ",
+       "LOOPBACK ",
+       "POINTOPOINT ",
+       "NOTRAILERS ",
+       "RUNNING ",
+       "NOARP ",
+       "PROMISC ",
+       "ALLMULTI ",
+       "SLAVE ",
+       "MASTER ",
+       "MULTICAST ",
+#ifdef HAVE_DYNAMIC
+       "DYNAMIC "
+#endif
+};
+
+static const unsigned short ife_print_flags_mask[] = {
+       IFF_UP,
+       IFF_BROADCAST,
+       IFF_DEBUG,
+       IFF_LOOPBACK,
+       IFF_POINTOPOINT,
+       IFF_NOTRAILERS,
+       IFF_RUNNING,
+       IFF_NOARP,
+       IFF_PROMISC,
+       IFF_ALLMULTI,
+       IFF_SLAVE,
+       IFF_MASTER,
+       IFF_MULTICAST,
+#ifdef HAVE_DYNAMIC
+       IFF_DYNAMIC
+#endif
+       0
+};
+
+static void ife_print(struct interface *ptr)
+{
+       struct aftype *ap;
+       const struct hwtype *hw;
+       int hf;
+       int can_compress = 0;
+
+#if HAVE_AFIPX
+       static struct aftype *ipxtype = NULL;
+#endif
+#if HAVE_AFECONET
+       static struct aftype *ectype = NULL;
+#endif
+#if HAVE_AFATALK
+       static struct aftype *ddptype = NULL;
+#endif
+#if HAVE_AFINET6
+       FILE *f;
+       char addr6[40], devname[20];
+       struct sockaddr_in6 sap;
+       int plen, scope, dad_status, if_idx;
+       char addr6p[8][5];
+#endif
+
+       ap = get_afntype(ptr->addr.sa_family);
+       if (ap == NULL)
+               ap = get_afntype(0);
+
+       hf = ptr->type;
+
+       if (hf == ARPHRD_CSLIP || hf == ARPHRD_CSLIP6)
+               can_compress = 1;
+
+       hw = get_hwntype(hf);
+       if (hw == NULL)
+               hw = get_hwntype(-1);
+
+       printf(_("%-9.9s Link encap:%s  "), ptr->name, _(hw->title));
+       /* For some hardware types (eg Ash, ATM) we don't print the
+          hardware address if it's null.  */
+       if (hw->print != NULL && (!(hw_null_address(hw, ptr->hwaddr) &&
+                                                               hw->suppress_null_addr)))
+               printf(_("HWaddr %s  "), hw->print(ptr->hwaddr));
+#ifdef IFF_PORTSEL
+       if (ptr->flags & IFF_PORTSEL) {
+               printf(_("Media:%s"), if_port_text[ptr->map.port] /* [0] */);
+               if (ptr->flags & IFF_AUTOMEDIA)
+                       printf(_("(auto)"));
+       }
+#endif
+       printf("\n");
+
+#if HAVE_AFINET
+       if (ptr->has_ip) {
+               printf(_("          %s addr:%s "), ap->name,
+                          ap->sprint(&ptr->addr, 1));
+               if (ptr->flags & IFF_POINTOPOINT) {
+                       printf(_(" P-t-P:%s "), ap->sprint(&ptr->dstaddr, 1));
+               }
+               if (ptr->flags & IFF_BROADCAST) {
+                       printf(_(" Bcast:%s "), ap->sprint(&ptr->broadaddr, 1));
+               }
+               printf(_(" Mask:%s\n"), ap->sprint(&ptr->netmask, 1));
+       }
+#endif
+
+#if HAVE_AFINET6
+
+#define IPV6_ADDR_ANY           0x0000U
+
+#define IPV6_ADDR_UNICAST       0x0001U
+#define IPV6_ADDR_MULTICAST     0x0002U
+#define IPV6_ADDR_ANYCAST       0x0004U
+
+#define IPV6_ADDR_LOOPBACK      0x0010U
+#define IPV6_ADDR_LINKLOCAL     0x0020U
+#define IPV6_ADDR_SITELOCAL     0x0040U
+
+#define IPV6_ADDR_COMPATv4      0x0080U
+
+#define IPV6_ADDR_SCOPE_MASK    0x00f0U
+
+#define IPV6_ADDR_MAPPED        0x1000U
+#define IPV6_ADDR_RESERVED      0x2000U        /* reserved address space */
+
+       if ((f = fopen(_PATH_PROCNET_IFINET6, "r")) != NULL) {
+               while (fscanf
+                          (f, "%4s%4s%4s%4s%4s%4s%4s%4s %02x %02x %02x %02x %20s\n",
+                               addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4],
+                               addr6p[5], addr6p[6], addr6p[7], &if_idx, &plen, &scope,
+                               &dad_status, devname) != EOF) {
+                       if (!strcmp(devname, ptr->name)) {
+                               sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
+                                               addr6p[0], addr6p[1], addr6p[2], addr6p[3],
+                                               addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
+                               inet_pton(AF_INET6, addr6,
+                                                 (struct sockaddr *) &sap.sin6_addr);
+                               sap.sin6_family = AF_INET6;
+                               printf(_("          inet6 addr: %s/%d"),
+                                          inet6_aftype.sprint((struct sockaddr *) &sap, 1),
+                                          plen);
+                               printf(_(" Scope:"));
+                               switch (scope & IPV6_ADDR_SCOPE_MASK) {
+                               case 0:
+                                       printf(_("Global"));
+                                       break;
+                               case IPV6_ADDR_LINKLOCAL:
+                                       printf(_("Link"));
+                                       break;
+                               case IPV6_ADDR_SITELOCAL:
+                                       printf(_("Site"));
+                                       break;
+                               case IPV6_ADDR_COMPATv4:
+                                       printf(_("Compat"));
+                                       break;
+                               case IPV6_ADDR_LOOPBACK:
+                                       printf(_("Host"));
+                                       break;
+                               default:
+                                       printf(_("Unknown"));
+                               }
+                               printf("\n");
+                       }
+               }
+               fclose(f);
+       }
+#endif
+
+#if HAVE_AFIPX
+       if (ipxtype == NULL)
+               ipxtype = get_afntype(AF_IPX);
+
+       if (ipxtype != NULL) {
+               if (ptr->has_ipx_bb)
+                       printf(_("          IPX/Ethernet II addr:%s\n"),
+                                  ipxtype->sprint(&ptr->ipxaddr_bb, 1));
+               if (ptr->has_ipx_sn)
+                       printf(_("          IPX/Ethernet SNAP addr:%s\n"),
+                                  ipxtype->sprint(&ptr->ipxaddr_sn, 1));
+               if (ptr->has_ipx_e2)
+                       printf(_("          IPX/Ethernet 802.2 addr:%s\n"),
+                                  ipxtype->sprint(&ptr->ipxaddr_e2, 1));
+               if (ptr->has_ipx_e3)
+                       printf(_("          IPX/Ethernet 802.3 addr:%s\n"),
+                                  ipxtype->sprint(&ptr->ipxaddr_e3, 1));
+       }
+#endif
+
+#if HAVE_AFATALK
+       if (ddptype == NULL)
+               ddptype = get_afntype(AF_APPLETALK);
+       if (ddptype != NULL) {
+               if (ptr->has_ddp)
+                       printf(_("          EtherTalk Phase 2 addr:%s\n"),
+                                  ddptype->sprint(&ptr->ddpaddr, 1));
+       }
+#endif
+
+#if HAVE_AFECONET
+       if (ectype == NULL)
+               ectype = get_afntype(AF_ECONET);
+       if (ectype != NULL) {
+               if (ptr->has_econet)
+                       printf(_("          econet addr:%s\n"),
+                                  ectype->sprint(&ptr->ecaddr, 1));
+       }
+#endif
+
+       printf("          ");
+       /* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */
+
+       if (ptr->flags == 0) {
+               printf(_("[NO FLAGS] "));
+       } else {
+               int i = 0;
+               do {
+                       if (ptr->flags & ife_print_flags_mask[i]) {
+                               printf(_(ife_print_flags_strs[i]));
+                       }
+               } while (ife_print_flags_mask[++i]);
+       }
+
+       /* DONT FORGET TO ADD THE FLAGS IN ife_print_short */
+       printf(_(" MTU:%d  Metric:%d"), ptr->mtu, ptr->metric ? ptr->metric : 1);
+#ifdef SIOCSKEEPALIVE
+       if (ptr->outfill || ptr->keepalive)
+               printf(_("  Outfill:%d  Keepalive:%d"), ptr->outfill, ptr->keepalive);
+#endif
+       printf("\n");
+
+       /* If needed, display the interface statistics. */
+
+       if (ptr->statistics_valid) {
+               /* XXX: statistics are currently only printed for the primary address,
+                *      not for the aliases, although strictly speaking they're shared
+                *      by all addresses.
+                */
+               printf("          ");
+
+               printf(_("RX packets:%Lu errors:%lu dropped:%lu overruns:%lu frame:%lu\n"),
+                          ptr->stats.rx_packets, ptr->stats.rx_errors,
+                          ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors,
+                          ptr->stats.rx_frame_errors);
+               if (can_compress)
+                       printf(_("             compressed:%lu\n"),
+                                  ptr->stats.rx_compressed);
+               printf("          ");
+               printf(_("TX packets:%Lu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n"),
+                          ptr->stats.tx_packets, ptr->stats.tx_errors,
+                          ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors,
+                          ptr->stats.tx_carrier_errors);
+               printf(_("          collisions:%lu "), ptr->stats.collisions);
+               if (can_compress)
+                       printf(_("compressed:%lu "), ptr->stats.tx_compressed);
+               if (ptr->tx_queue_len != -1)
+                       printf(_("txqueuelen:%d "), ptr->tx_queue_len);
+               printf("\n          R");
+               print_bytes_scaled(ptr->stats.rx_bytes, "  T");
+               print_bytes_scaled(ptr->stats.tx_bytes, "\n");
+
+       }
+
+       if ((ptr->map.irq || ptr->map.mem_start || ptr->map.dma ||
+                ptr->map.base_addr)) {
+               printf("          ");
+               if (ptr->map.irq)
+                       printf(_("Interrupt:%d "), ptr->map.irq);
+               if (ptr->map.base_addr >= 0x100)        /* Only print devices using it for
+                                                                                          I/O maps */
+                       printf(_("Base address:0x%lx "),
+                                  (unsigned long) ptr->map.base_addr);
+               if (ptr->map.mem_start) {
+                       printf(_("Memory:%lx-%lx "), ptr->map.mem_start,
+                                  ptr->map.mem_end);
+               }
+               if (ptr->map.dma)
+                       printf(_("DMA chan:%x "), ptr->map.dma);
+               printf("\n");
+       }
+       printf("\n");
+}
+
+
+static int do_if_print(struct interface *ife, void *cookie)
+{
+       int *opt_a = (int *) cookie;
+       int res;
+
+       res = do_if_fetch(ife);
+       if (res >= 0) {
+               if ((ife->flags & IFF_UP) || *opt_a)
+                       ife_print(ife);
+       }
+       return res;
+}
+
+static struct interface *lookup_interface(char *name)
+{
+       struct interface *ife = NULL;
+
+       if (if_readlist_proc(name) < 0)
+               return NULL;
+       ife = add_interface(name);
+       return ife;
+}
+
+/* for ipv4 add/del modes */
+static int if_print(char *ifname)
+{
+       int res;
+
+       if (!ifname) {
+               res = for_all_interfaces(do_if_print, &interface_opt_a);
+       } else {
+               struct interface *ife;
+
+               ife = lookup_interface(ifname);
+               res = do_if_fetch(ife);
+               if (res >= 0)
+                       ife_print(ife);
+       }
+       return res;
+}
+
+int display_interfaces(char *ifname)
+{
+       int status;
+
+       /* Create a channel to the NET kernel. */
+       if ((skfd = sockets_open(0)) < 0) {
+               bb_perror_msg_and_die("socket");
+       }
+
+       /* Do we have to show the current setup? */
+       status = if_print(ifname);
+#ifdef CONFIG_FEATURE_CLEAN_UP
+       sockets_close();
+#endif
+       exit(status < 0);
+}