r8310: replace the heimdal networking interface scanning code with glue code that uses the Samba

interfaces list. This makes heimdal obey the 'interfaces=' smb.conf option, and should also
fix the portability problems with the heimdal code
(This used to be commit ba621d1c554e135f449a144019b84719a086e04f)

2 files changed, 0 insertions, 1477 deletions

diff --git a/source4/heimdal/lib/krb5/get_addrs.c b/source4/heimdal/lib/krb5/get_addrs.c
deleted file mode 100644
index 034516d7d4..0000000000
--- a/source4/heimdal/lib/krb5/get_addrs.c
+++ /dev/null
@@ -1,291 +0,0 @@
-/*
- * Copyright (c) 1997 - 2002 Kungliga Tekniska Högskolan
- * (Royal Institute of Technology, Stockholm, Sweden). 
- * All rights reserved. 
- *
- * Redistribution and use in source and binary forms, with or without 
- * modification, are permitted provided that the following conditions 
- * are met: 
- *
- * 1. Redistributions of source code must retain the above copyright 
- *    notice, this list of conditions and the following disclaimer. 
- *
- * 2. Redistributions in binary form must reproduce the above copyright 
- *    notice, this list of conditions and the following disclaimer in the 
- *    documentation and/or other materials provided with the distribution. 
- *
- * 3. Neither the name of the Institute nor the names of its contributors 
- *    may be used to endorse or promote products derived from this software 
- *    without specific prior written permission. 
- *
- * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
- * SUCH DAMAGE. 
- */
-
-#include "krb5_locl.h"
-
-RCSID("$Id: get_addrs.c,v 1.46 2004/05/25 21:26:05 lha Exp $");
-
-#ifdef __osf__
-/* hate */
-struct rtentry;
-struct mbuf;
-#endif
-#ifdef HAVE_NET_IF_H
-#include <net/if.h>
-#endif
-#include <ifaddrs.h>
-
-static krb5_error_code
-gethostname_fallback (krb5_context context, krb5_addresses *res)
-{
-    krb5_error_code ret;
-    char hostname[MAXHOSTNAMELEN];
-    struct hostent *hostent;
-
-    if (gethostname (hostname, sizeof(hostname))) {
-	ret = errno;
-	krb5_set_error_string (context, "gethostname: %s", strerror(ret));
-	return ret;
-    }
-    hostent = roken_gethostbyname (hostname);
-    if (hostent == NULL) {
-	ret = errno;
-	krb5_set_error_string (context, "gethostbyname %s: %s",
-			       hostname, strerror(ret));
-	return ret;
-    }
-    res->len = 1;
-    res->val = malloc (sizeof(*res->val));
-    if (res->val == NULL) {
-	krb5_set_error_string(context, "malloc: out of memory");
-	return ENOMEM;
-    }
-    res->val[0].addr_type = hostent->h_addrtype;
-    res->val[0].address.data = NULL;
-    res->val[0].address.length = 0;
-    ret = krb5_data_copy (&res->val[0].address,
-			  hostent->h_addr,
-			  hostent->h_length);
-    if (ret) {
-	free (res->val);
-	return ret;
-    }
-    return 0;
-}
-
-enum {
-    LOOP            = 1,	/* do include loopback interfaces */
-    LOOP_IF_NONE    = 2,	/* include loopback if no other if's */
-    EXTRA_ADDRESSES = 4,	/* include extra addresses */
-    SCAN_INTERFACES = 8		/* scan interfaces for addresses */
-};
-
-/*
- * Try to figure out the addresses of all configured interfaces with a
- * lot of magic ioctls.
- */
-
-static krb5_error_code
-find_all_addresses (krb5_context context, krb5_addresses *res, int flags)
-{
-    struct sockaddr sa_zero;
-    struct ifaddrs *ifa0, *ifa;
-    krb5_error_code ret = ENXIO; 
-    int num, idx;
-    krb5_addresses ignore_addresses;
-
-    res->val = NULL;
-
-    if (getifaddrs(&ifa0) == -1) {
-	ret = errno;
-	krb5_set_error_string(context, "getifaddrs: %s", strerror(ret));
-	return (ret);
-    }
-
-    memset(&sa_zero, 0, sizeof(sa_zero));
-
-    /* First, count all the ifaddrs. */
-    for (ifa = ifa0, num = 0; ifa != NULL; ifa = ifa->ifa_next, num++)
-	/* nothing */;
-
-    if (num == 0) {
-	freeifaddrs(ifa0);
-	krb5_set_error_string(context, "no addresses found");
-	return (ENXIO);
-    }
-
-    if (flags & EXTRA_ADDRESSES) {
-	/* we'll remove the addresses we don't care about */
-	ret = krb5_get_ignore_addresses(context, &ignore_addresses);
-	if(ret)
-	    return ret;
-    }
-
-    /* Allocate storage for them. */
-    res->val = calloc(num, sizeof(*res->val));
-    if (res->val == NULL) {
-	krb5_free_addresses(context, &ignore_addresses);
-	freeifaddrs(ifa0);
-	krb5_set_error_string (context, "malloc: out of memory");
-	return (ENOMEM);
-    }
-
-    /* Now traverse the list. */
-    for (ifa = ifa0, idx = 0; ifa != NULL; ifa = ifa->ifa_next) {
-	if ((ifa->ifa_flags & IFF_UP) == 0)
-	    continue;
-	if (ifa->ifa_addr == NULL)
-	    continue;
-	if (memcmp(ifa->ifa_addr, &sa_zero, sizeof(sa_zero)) == 0)
-	    continue;
-	if (krb5_sockaddr_uninteresting(ifa->ifa_addr))
-	    continue;
-	if ((ifa->ifa_flags & IFF_LOOPBACK) != 0) {
-	    /* We'll deal with the LOOP_IF_NONE case later. */
-	    if ((flags & LOOP) == 0)
-		continue;
-	}
-
-	ret = krb5_sockaddr2address(context, ifa->ifa_addr, &res->val[idx]);
-	if (ret) {
-	    /*
-	     * The most likely error here is going to be "Program
-	     * lacks support for address type".  This is no big
-	     * deal -- just continue, and we'll listen on the
-	     * addresses who's type we *do* support.
-	     */
-	    continue;
-	}
-	/* possibly skip this address? */
-	if((flags & EXTRA_ADDRESSES) && 
-	   krb5_address_search(context, &res->val[idx], &ignore_addresses)) {
-	    krb5_free_address(context, &res->val[idx]);
-	    flags &= ~LOOP_IF_NONE; /* we actually found an address,
-                                       so don't add any loop-back
-                                       addresses */
-	    continue;
-	}
-
-	idx++;
-    }
-
-    /*
-     * If no addresses were found, and LOOP_IF_NONE is set, then find
-     * the loopback addresses and add them to our list.
-     */
-    if ((flags & LOOP_IF_NONE) != 0 && idx == 0) {
-	for (ifa = ifa0; ifa != NULL; ifa = ifa->ifa_next) {
-	    if ((ifa->ifa_flags & IFF_UP) == 0)
-		continue;
-	    if (ifa->ifa_addr == NULL)
-		continue;
-	    if (memcmp(ifa->ifa_addr, &sa_zero, sizeof(sa_zero)) == 0)
-		continue;
-	    if (krb5_sockaddr_uninteresting(ifa->ifa_addr))
-		continue;
-
-	    if ((ifa->ifa_flags & IFF_LOOPBACK) != 0) {
-		ret = krb5_sockaddr2address(context,
-					    ifa->ifa_addr, &res->val[idx]);
-		if (ret) {
-		    /*
-		     * See comment above.
-		     */
-		    continue;
-		}
-		if((flags & EXTRA_ADDRESSES) && 
-		   krb5_address_search(context, &res->val[idx], 
-				       &ignore_addresses)) {
-		    krb5_free_address(context, &res->val[idx]);
-		    continue;
-		}
-		idx++;
-	    }
-	}
-    }
-
-    if (flags & EXTRA_ADDRESSES)
-	krb5_free_addresses(context, &ignore_addresses);
-    freeifaddrs(ifa0);
-    if (ret)
-	free(res->val);
-    else
-	res->len = idx;        /* Now a count. */
-    return (ret);
-}
-
-static krb5_error_code
-get_addrs_int (krb5_context context, krb5_addresses *res, int flags)
-{
-    krb5_error_code ret = -1;
-
-    if (flags & SCAN_INTERFACES) {
-	ret = find_all_addresses (context, res, flags);
-	if(ret || res->len == 0)
-	    ret = gethostname_fallback (context, res);
-    } else {
-	res->len = 0;
-	res->val = NULL;
-	ret = 0;
-    }
-
-    if(ret == 0 && (flags & EXTRA_ADDRESSES)) {
-	krb5_addresses a;
-	/* append user specified addresses */
-	ret = krb5_get_extra_addresses(context, &a);
-	if(ret) {
-	    krb5_free_addresses(context, res);
-	    return ret;
-	}
-	ret = krb5_append_addresses(context, res, &a);
-	if(ret) {
-	    krb5_free_addresses(context, res);
-	    return ret;
-	}
-	krb5_free_addresses(context, &a);
-    }
-    if(res->len == 0) {
-	free(res->val);
-	res->val = NULL;
-    }
-    return ret;
-}
-
-/*
- * Try to get all addresses, but return the one corresponding to
- * `hostname' if we fail.
- *
- * Only include loopback address if there are no other.
- */
-
-krb5_error_code KRB5_LIB_FUNCTION
-krb5_get_all_client_addrs (krb5_context context, krb5_addresses *res)
-{
-    int flags = LOOP_IF_NONE | EXTRA_ADDRESSES;
-
-    if (context->scan_interfaces)
-	flags |= SCAN_INTERFACES;
-
-    return get_addrs_int (context, res, flags);
-}
-
-/*
- * Try to get all local addresses that a server should listen to.
- * If that fails, we return the address corresponding to `hostname'.
- */
-
-krb5_error_code KRB5_LIB_FUNCTION
-krb5_get_all_server_addrs (krb5_context context, krb5_addresses *res)
-{
-    return get_addrs_int (context, res, LOOP | SCAN_INTERFACES);
-}
diff --git a/source4/heimdal/lib/roken/getifaddrs.c b/source4/heimdal/lib/roken/getifaddrs.c
deleted file mode 100644
index 3c97e89810..0000000000
--- a/source4/heimdal/lib/roken/getifaddrs.c
+++ /dev/null
@@ -1,1186 +0,0 @@
-/*
- * Copyright (c) 2000 - 2002 Kungliga Tekniska Högskolan
- * (Royal Institute of Technology, Stockholm, Sweden).
- * All rights reserved.
- * 
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 
- * 3. Neither the name of the Institute nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- * 
- * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-RCSID("$Id: getifaddrs.c,v 1.11 2005/04/30 15:45:47 lha Exp $");
-#endif
-#include "roken.h"
-
-#ifdef __osf__
-/* hate */
-struct rtentry;
-struct mbuf;
-#endif
-#ifdef HAVE_NET_IF_H
-#include <net/if.h>
-#endif
-
-#ifdef HAVE_SYS_SOCKIO_H
-#include <sys/sockio.h>
-#endif /* HAVE_SYS_SOCKIO_H */
-
-#ifdef HAVE_NETINET_IN6_VAR_H
-#include <netinet/in6_var.h>
-#endif /* HAVE_NETINET_IN6_VAR_H */
-
-#include <ifaddrs.h>
-
-#ifdef AF_NETLINK
-
-/*
- * The linux - AF_NETLINK version of getifaddrs - from Usagi.
- * Linux does not return v6 addresses from SIOCGIFCONF.
- */
-
-/* $USAGI: ifaddrs.c,v 1.18 2002/03/06 01:50:46 yoshfuji Exp $ */
-
-/**************************************************************************
- * ifaddrs.c
- * Copyright (C)2000 Hideaki YOSHIFUJI, All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the author nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- * 
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include "config.h"
-
-#include <string.h>
-#include <time.h>
-#include <malloc.h>
-#include <errno.h>
-#include <unistd.h>
-
-#include <sys/socket.h>
-#include <asm/types.h>
-#include <linux/netlink.h>
-#include <linux/rtnetlink.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netpacket/packet.h>
-#include <net/ethernet.h>     /* the L2 protocols */
-#include <sys/uio.h>
-#include <net/if.h>
-#include <net/if_arp.h>
-#include <ifaddrs.h>
-#include <netinet/in.h>
-
-#define __set_errno(e) (errno = (e))
-#define __close(fd) (close(fd))
-#undef ifa_broadaddr
-#define ifa_broadaddr ifa_dstaddr
-#define IFA_NETMASK
-
-/* ====================================================================== */
-struct nlmsg_list{
-    struct nlmsg_list *nlm_next;
-    struct nlmsghdr *nlh;
-    int size;
-    time_t seq;
-};
-
-struct rtmaddr_ifamap {
-  void *address;
-  void *local;
-#ifdef IFA_NETMASK
-  void *netmask;
-#endif
-  void *broadcast;
-#ifdef HAVE_IFADDRS_IFA_ANYCAST
-  void *anycast;
-#endif
-  int address_len;
-  int local_len;
-#ifdef IFA_NETMASK
-  int netmask_len;
-#endif
-  int broadcast_len;
-#ifdef HAVE_IFADDRS_IFA_ANYCAST
-  int anycast_len;
-#endif
-};
-
-/* ====================================================================== */
-static size_t
-ifa_sa_len(sa_family_t family, int len)
-{
-  size_t size;
-  switch(family){
-  case AF_INET:
-    size = sizeof(struct sockaddr_in);
-    break;
-  case AF_INET6:
-    size = sizeof(struct sockaddr_in6);
-    break;
-  case AF_PACKET:
-    size = (size_t)(((struct sockaddr_ll *)NULL)->sll_addr) + len;
-    if (size < sizeof(struct sockaddr_ll))
-      size = sizeof(struct sockaddr_ll);
-    break;
-  default:
-    size = (size_t)(((struct sockaddr *)NULL)->sa_data) + len;
-    if (size < sizeof(struct sockaddr))
-      size = sizeof(struct sockaddr);
-    break;
-  }
-  return size;
-}
-
-static void 
-ifa_make_sockaddr(sa_family_t family, 
-		  struct sockaddr *sa, 
-		  void *p, size_t len,
-		  uint32_t scope, uint32_t scopeid)
-{
-  if (sa == NULL) return;
-  switch(family){
-  case AF_INET:
-    memcpy(&((struct sockaddr_in*)sa)->sin_addr, (char *)p, len);
-    break;
-  case AF_INET6:
-    memcpy(&((struct sockaddr_in6*)sa)->sin6_addr, (char *)p, len);
-    if (IN6_IS_ADDR_LINKLOCAL(p) ||
-	IN6_IS_ADDR_MC_LINKLOCAL(p)){
-      ((struct sockaddr_in6*)sa)->sin6_scope_id = scopeid;
-    }
-    break;
-  case AF_PACKET:
-    memcpy(((struct sockaddr_ll*)sa)->sll_addr, (char *)p, len);
-    ((struct sockaddr_ll*)sa)->sll_halen = len;
-    break;
-  default:
-    memcpy(sa->sa_data, p, len);	/*XXX*/
-    break;
-  }
-  sa->sa_family = family;
-#ifdef HAVE_SOCKADDR_SA_LEN
-  sa->sa_len = ifa_sa_len(family, len);
-#endif
-}
-
-#ifndef IFA_NETMASK
-static struct sockaddr *
-ifa_make_sockaddr_mask(sa_family_t family, 
-		       struct sockaddr *sa, 
-		       uint32_t prefixlen)
-{
-  int i;
-  char *p = NULL, c;
-  uint32_t max_prefixlen = 0;
-
-  if (sa == NULL) return NULL;
-  switch(family){
-  case AF_INET:
-    memset(&((struct sockaddr_in*)sa)->sin_addr, 0, sizeof(((struct sockaddr_in*)sa)->sin_addr));
-    p = (char *)&((struct sockaddr_in*)sa)->sin_addr;
-    max_prefixlen = 32;
-    break;
-  case AF_INET6:
-    memset(&((struct sockaddr_in6*)sa)->sin6_addr, 0, sizeof(((struct sockaddr_in6*)sa)->sin6_addr));
-    p = (char *)&((struct sockaddr_in6*)sa)->sin6_addr;
-#if 0	/* XXX: fill scope-id? */
-    if (IN6_IS_ADDR_LINKLOCAL(p) ||
-	IN6_IS_ADDR_MC_LINKLOCAL(p)){
-      ((struct sockaddr_in6*)sa)->sin6_scope_id = scopeid;
-    }
-#endif
-    max_prefixlen = 128;
-    break;
-  default:
-    return NULL;
-  }
-  sa->sa_family = family;
-#ifdef HAVE_SOCKADDR_SA_LEN
-  sa->sa_len = ifa_sa_len(family, len);
-#endif
-  if (p){
-    if (prefixlen > max_prefixlen)
-      prefixlen = max_prefixlen;
-    for (i=0; i<(prefixlen / 8); i++)
-      *p++ = 0xff;
-    c = 0xff;
-    c <<= (8 - (prefixlen % 8));
-    *p = c;
-  }
-  return sa;
-}
-#endif
-
-/* ====================================================================== */
-static int 
-nl_sendreq(int sd, int request, int flags, int *seq)
-{
-  char reqbuf[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
-	      NLMSG_ALIGN(sizeof(struct rtgenmsg))];
-  struct sockaddr_nl nladdr;
-  struct nlmsghdr *req_hdr;
-  struct rtgenmsg *req_msg;
-  time_t t = time(NULL);
-
-  if (seq) *seq = t;
-  memset(&reqbuf, 0, sizeof(reqbuf));
-  req_hdr = (struct nlmsghdr *)reqbuf;
-  req_msg = (struct rtgenmsg *)NLMSG_DATA(req_hdr);
-  req_hdr->nlmsg_len = NLMSG_LENGTH(sizeof(*req_msg));
-  req_hdr->nlmsg_type = request;
-  req_hdr->nlmsg_flags = flags | NLM_F_REQUEST;
-  req_hdr->nlmsg_pid = 0;
-  req_hdr->nlmsg_seq = t;
-  req_msg->rtgen_family = AF_UNSPEC;
-  memset(&nladdr, 0, sizeof(nladdr));
-  nladdr.nl_family = AF_NETLINK;
-  return (sendto(sd, (void *)req_hdr, req_hdr->nlmsg_len, 0,
-		 (struct sockaddr *)&nladdr, sizeof(nladdr)));
-}
-
-static int 
-nl_recvmsg(int sd, int request, int seq, 
-	   void *buf, size_t buflen, 
-	   int *flags)
-{
-  struct msghdr msg;
-  struct iovec iov = { buf, buflen };
-  struct sockaddr_nl nladdr;
-  int read_len;
-
-  for (;;){
-    msg.msg_name = (void *)&nladdr;
-    msg.msg_namelen = sizeof(nladdr);
-    msg.msg_iov = &iov;
-    msg.msg_iovlen = 1;
-    msg.msg_control = NULL;
-    msg.msg_controllen = 0;
-    msg.msg_flags = 0;
-    read_len = recvmsg(sd, &msg, 0);
-    if ((read_len < 0 && errno == EINTR) || (msg.msg_flags & MSG_TRUNC))
-      continue;
-    if (flags) *flags = msg.msg_flags;
-    break;
-  }
-  return read_len;
-}
-
-static int 
-nl_getmsg(int sd, int request, int seq, 
-	  struct nlmsghdr **nlhp,
-	  int *done)
-{
-  struct nlmsghdr *nh;
-  size_t bufsize = 65536, lastbufsize = 0;
-  void *buff = NULL;
-  int result = 0, read_size;
-  int msg_flags;
-  pid_t pid = getpid();
-  for (;;){
-    void *newbuff = realloc(buff, bufsize);
-    if (newbuff == NULL || bufsize < lastbufsize) {
-      result = -1;
-      break;
-    }
-    buff = newbuff;
-    result = read_size = nl_recvmsg(sd, request, seq, buff, bufsize, &msg_flags);
-    if (read_size < 0 || (msg_flags & MSG_TRUNC)){
-      lastbufsize = bufsize;
-      bufsize *= 2;
-      continue;
-    }
-    if (read_size == 0) break;
-    nh = (struct nlmsghdr *)buff;
-    for (nh = (struct nlmsghdr *)buff;
-	 NLMSG_OK(nh, read_size);
-	 nh = (struct nlmsghdr *)NLMSG_NEXT(nh, read_size)){
-      if (nh->nlmsg_pid != pid ||
-	  nh->nlmsg_seq != seq)
-	continue;
-      if (nh->nlmsg_type == NLMSG_DONE){
-	(*done)++;
-	break; /* ok */
-      }
-      if (nh->nlmsg_type == NLMSG_ERROR){
-	struct nlmsgerr *nlerr = (struct nlmsgerr *)NLMSG_DATA(nh);
-	result = -1;
-	if (nh->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr)))
-	  __set_errno(EIO);
-	else
-	  __set_errno(-nlerr->error);
-	break;
-      }
-    }
-    break;
-  }
-  if (result < 0)
-    if (buff){
-      int saved_errno = errno;
-      free(buff);
-      __set_errno(saved_errno);
-    }
-  *nlhp = (struct nlmsghdr *)buff;
-  return result;
-}
-
-static int
-nl_getlist(int sd, int seq,
-	   int request,
-	   struct nlmsg_list **nlm_list,
-	   struct nlmsg_list **nlm_end)
-{
-  struct nlmsghdr *nlh = NULL;
-  int status;
-  int done = 0;
-
-  status = nl_sendreq(sd, request, NLM_F_ROOT|NLM_F_MATCH, &seq);
-  if (status < 0)
-    return status;
-  if (seq == 0)
-    seq = (int)time(NULL);
-  while(!done){
-    status = nl_getmsg(sd, request, seq, &nlh, &done);
-    if (status < 0)
-      return status;
-    if (nlh){
-      struct nlmsg_list *nlm_next = (struct nlmsg_list *)malloc(sizeof(struct nlmsg_list));
-      if (nlm_next == NULL){
-	int saved_errno = errno;
-	free(nlh);
-	__set_errno(saved_errno);
-	status = -1;
-      } else {
-	nlm_next->nlm_next = NULL;
-	nlm_next->nlh = (struct nlmsghdr *)nlh;
-	nlm_next->size = status;
-	nlm_next->seq = seq;
-	if (*nlm_list == NULL){
-	  *nlm_list = nlm_next;
-	  *nlm_end = nlm_next;
-	} else {
-	  (*nlm_end)->nlm_next = nlm_next;
-	  *nlm_end = nlm_next;
-	}
-      }
-    }
-  }
-  return status >= 0 ? seq : status;
-}
-
-/* ---------------------------------------------------------------------- */
-static void 
-free_nlmsglist(struct nlmsg_list *nlm0)
-{
-  struct nlmsg_list *nlm;
-  int saved_errno;
-  if (!nlm0)
-    return;
-  saved_errno = errno;
-  for (nlm=nlm0; nlm; nlm=nlm->nlm_next){
-    if (nlm->nlh)
-      free(nlm->nlh);
-  }
-  free(nlm0);
-  __set_errno(saved_errno);
-}
-
-static void 
-free_data(void *data, void *ifdata)
-{
-  int saved_errno = errno;
-  if (data != NULL) free(data);
-  if (ifdata != NULL) free(ifdata);
-  __set_errno(saved_errno);
-}
-
-/* ---------------------------------------------------------------------- */
-static void 
-nl_close(int sd)
-{
-  int saved_errno = errno;
-  if (sd >= 0) __close(sd);
-  __set_errno(saved_errno);
-}
-
-/* ---------------------------------------------------------------------- */
-static int 
-nl_open(void)
-{
-  struct sockaddr_nl nladdr;
-  int sd;
-
-  sd = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
-  if (sd < 0) return -1;
-  memset(&nladdr, 0, sizeof(nladdr));
-  nladdr.nl_family = AF_NETLINK;
-  if (bind(sd, (struct sockaddr*)&nladdr, sizeof(nladdr)) < 0){
-    nl_close(sd);
-    return -1;
-  }
-  return sd;
-}
-
-/* ====================================================================== */
-int ROKEN_LIB_FUNCTION
-getifaddrs(struct ifaddrs **ifap)
-{
-  int sd;
-  struct nlmsg_list *nlmsg_list, *nlmsg_end, *nlm;
-  /* - - - - - - - - - - - - - - - */
-  int icnt;
-  size_t dlen, xlen, nlen;
-  uint32_t max_ifindex = 0;
-
-  pid_t pid = getpid();
-  int seq;
-  int result;
-  int build     ; /* 0 or 1 */
-
-/* ---------------------------------- */
-  /* initialize */
-  icnt = dlen = xlen = nlen = 0;
-  nlmsg_list = nlmsg_end = NULL;
-
-  if (ifap)
-    *ifap = NULL;
-
-/* ---------------------------------- */
-  /* open socket and bind */
-  sd = nl_open();
-  if (sd < 0)
-    return -1;
-
-/* ---------------------------------- */
-   /* gather info */
-  if ((seq = nl_getlist(sd, 0, RTM_GETLINK,
-			&nlmsg_list, &nlmsg_end)) < 0){
-    free_nlmsglist(nlmsg_list);
-    nl_close(sd);
-    return -1;
-  }
-  if ((seq = nl_getlist(sd, seq+1, RTM_GETADDR,
-			&nlmsg_list, &nlmsg_end)) < 0){
-    free_nlmsglist(nlmsg_list);
-    nl_close(sd);
-    return -1;
-  }
-
-/* ---------------------------------- */
-  /* Estimate size of result buffer and fill it */
-  for (build=0; build<=1; build++){
-    struct ifaddrs *ifl = NULL, *ifa = NULL;
-    struct nlmsghdr *nlh, *nlh0;
-    char *data = NULL, *xdata = NULL;
-    void *ifdata = NULL;
-    char *ifname = NULL, **iflist = NULL;
-    uint16_t *ifflist = NULL;
-    struct rtmaddr_ifamap ifamap;
-
-    if (build){
-      data = calloc(1,
-		    NLMSG_ALIGN(sizeof(struct ifaddrs[icnt]))
-		    + dlen + xlen + nlen);
-      ifa = (struct ifaddrs *)data;
-      ifdata = calloc(1, 
-		      NLMSG_ALIGN(sizeof(char *[max_ifindex+1]))
-		      + NLMSG_ALIGN(sizeof(uint16_t [max_ifindex+1])));
-      if (ifap != NULL)
-	*ifap = (ifdata != NULL) ? ifa : NULL;
-      else{
-	free_data(data, ifdata);
-	result = 0;
-	break;
-      }
-      if (data == NULL || ifdata == NULL){
-	free_data(data, ifdata);
-	result = -1;
-	break;
-      }
-      ifl = NULL;
-      data += NLMSG_ALIGN(sizeof(struct ifaddrs)) * icnt;
-      xdata = data + dlen;
-      ifname = xdata + xlen;
-      iflist = ifdata;
-      ifflist = (uint16_t *)(((char *)iflist) + NLMSG_ALIGN(sizeof(char *[max_ifindex+1])));
-    }
-
-    for (nlm=nlmsg_list; nlm; nlm=nlm->nlm_next){
-      int nlmlen = nlm->size;
-      if (!(nlh0 = nlm->nlh))
-	continue;
-      for (nlh = nlh0; 
-	   NLMSG_OK(nlh, nlmlen); 
-	   nlh=NLMSG_NEXT(nlh,nlmlen)){
-	struct ifinfomsg *ifim = NULL;
-	struct ifaddrmsg *ifam = NULL;
-	struct rtattr *rta;
-
-	size_t nlm_struct_size = 0;
-	sa_family_t nlm_family = 0;
-	uint32_t nlm_scope = 0, nlm_index = 0;
-	size_t sockaddr_size = 0;
-	uint32_t nlm_prefixlen = 0;
-	size_t rtasize;
-
-	memset(&ifamap, 0, sizeof(ifamap));
-
-	/* check if the message is what we want */
-	if (nlh->nlmsg_pid != pid ||
-	    nlh->nlmsg_seq != nlm->seq)
-	  continue;
-	if (nlh->nlmsg_type == NLMSG_DONE){
-	  break; /* ok */
-	}
-	switch (nlh->nlmsg_type){
-	case RTM_NEWLINK:
-	  ifim = (struct ifinfomsg *)NLMSG_DATA(nlh);
-	  nlm_struct_size = sizeof(*ifim);
-	  nlm_family = ifim->ifi_family;
-	  nlm_scope = 0;
-	  nlm_index = ifim->ifi_index;
-	  nlm_prefixlen = 0;
-	  if (build)
-	    ifflist[nlm_index] = ifa->ifa_flags = ifim->ifi_flags;
-	  break;
-	case RTM_NEWADDR:
-	  ifam = (struct ifaddrmsg *)NLMSG_DATA(nlh);
-	  nlm_struct_size = sizeof(*ifam);
-	  nlm_family = ifam->ifa_family;
-	  nlm_scope = ifam->ifa_scope;
-	  nlm_index = ifam->ifa_index;
-	  nlm_prefixlen = ifam->ifa_prefixlen;
-	  if (build)
-	    ifa->ifa_flags = ifflist[nlm_index];
-	  break;
-	default:
-	  continue;
-	}
-	
-	if (!build){
-	  if (max_ifindex < nlm_index)
-	    max_ifindex = nlm_index;
-	} else {
-	  if (ifl != NULL)
-	    ifl->ifa_next = ifa;
-	}
-
-	rtasize = NLMSG_PAYLOAD(nlh, nlmlen) - NLMSG_ALIGN(nlm_struct_size);
-	for (rta = (struct rtattr *)(((char *)NLMSG_DATA(nlh)) + NLMSG_ALIGN(nlm_struct_size));
-	     RTA_OK(rta, rtasize);
-	     rta = RTA_NEXT(rta, rtasize)){
-	  struct sockaddr **sap = NULL;
-	  void *rtadata = RTA_DATA(rta);
-	  size_t rtapayload = RTA_PAYLOAD(rta);
-	  socklen_t sa_len;
-
-	  switch(nlh->nlmsg_type){
-	  case RTM_NEWLINK:
-	    switch(rta->rta_type){
-	    case IFLA_ADDRESS:
-	    case IFLA_BROADCAST:
-	      if (build){
-		sap = (rta->rta_type == IFLA_ADDRESS) ? &ifa->ifa_addr : &ifa->ifa_broadaddr;
-		*sap = (struct sockaddr *)data;
-	      }
-	      sa_len = ifa_sa_len(AF_PACKET, rtapayload);
-	      if (rta->rta_type == IFLA_ADDRESS)
-		sockaddr_size = NLMSG_ALIGN(sa_len);
-	      if (!build){
-		dlen += NLMSG_ALIGN(sa_len);
-	      } else {
-		memset(*sap, 0, sa_len);
-		ifa_make_sockaddr(AF_PACKET, *sap, rtadata,rtapayload, 0,0);
-		((struct sockaddr_ll *)*sap)->sll_ifindex = nlm_index;
-		((struct sockaddr_ll *)*sap)->sll_hatype = ifim->ifi_type;
-		data += NLMSG_ALIGN(sa_len);
-	      }
-	      break;
-	    case IFLA_IFNAME:/* Name of Interface */
-	      if (!build)
-		nlen += NLMSG_ALIGN(rtapayload + 1);
-	      else{
-		ifa->ifa_name = ifname;
-		if (iflist[nlm_index] == NULL)
-		  iflist[nlm_index] = ifa->ifa_name;
-		strncpy(ifa->ifa_name, rtadata, rtapayload);
-		ifa->ifa_name[rtapayload] = '\0';
-		ifname += NLMSG_ALIGN(rtapayload + 1);
-	      }
-	      break;
-	    case IFLA_STATS:/* Statistics of Interface */
-	      if (!build)
-		xlen += NLMSG_ALIGN(rtapayload);
-	      else{
-		ifa->ifa_data = xdata;
-		memcpy(ifa->ifa_data, rtadata, rtapayload);
-		xdata += NLMSG_ALIGN(rtapayload);
-	      }
-	      break;
-	    case IFLA_UNSPEC:
-	      break;
-	    case IFLA_MTU:
-	      break;
-	    case IFLA_LINK:
-	      break;
-	    case IFLA_QDISC:
-	      break;
-	    default:
-	      break;
-	    }
-	    break;
-	  case RTM_NEWADDR:
-	    if (nlm_family == AF_PACKET) break;
-	    switch(rta->rta_type){
-	    case IFA_ADDRESS:
-		ifamap.address = rtadata;
-		ifamap.address_len = rtapayload;
-		break;
-	    case IFA_LOCAL:
-		ifamap.local = rtadata;
-		ifamap.local_len = rtapayload;
-		break;
-	    case IFA_BROADCAST:
-		ifamap.broadcast = rtadata;
-		ifamap.broadcast_len = rtapayload;
-		break;
-#ifdef HAVE_IFADDRS_IFA_ANYCAST
-	    case IFA_ANYCAST:
-		ifamap.anycast = rtadata;
-		ifamap.anycast_len = rtapayload;
-		break;
-#endif
-	    case IFA_LABEL:
-	      if (!build)
-		nlen += NLMSG_ALIGN(rtapayload + 1);
-	      else{
-		ifa->ifa_name = ifname;
-		if (iflist[nlm_index] == NULL)
-		  iflist[nlm_index] = ifname;
-		strncpy(ifa->ifa_name, rtadata, rtapayload);
-		ifa->ifa_name[rtapayload] = '\0';
-		ifname += NLMSG_ALIGN(rtapayload + 1);
-	      }
-	      break;
-	    case IFA_UNSPEC:
-	      break;
-	    case IFA_CACHEINFO:
-	      break;
-	    default:
-	      break;
-	    }
-	  }
-	}
-	if (nlh->nlmsg_type == RTM_NEWADDR &&
-	    nlm_family != AF_PACKET) {
-	  if (!ifamap.local) {
-	    ifamap.local = ifamap.address;
-	    ifamap.local_len = ifamap.address_len;
-	  }
-	  if (!ifamap.address) {
-	    ifamap.address = ifamap.local;
-	    ifamap.address_len = ifamap.local_len;
-	  }
-	  if (ifamap.address_len != ifamap.local_len ||
-	      (ifamap.address != NULL &&
-	       memcmp(ifamap.address, ifamap.local, ifamap.address_len))) {
-	    /* p2p; address is peer and local is ours */
-	    ifamap.broadcast = ifamap.address;
-	    ifamap.broadcast_len = ifamap.address_len;
-	    ifamap.address = ifamap.local;
-	    ifamap.address_len = ifamap.local_len;
-	  }
-	  if (ifamap.address) {
-#ifndef IFA_NETMASK
-	    sockaddr_size = NLMSG_ALIGN(ifa_sa_len(nlm_family,ifamap.address_len));
-#endif
-	    if (!build)
-	      dlen += NLMSG_ALIGN(ifa_sa_len(nlm_family,ifamap.address_len));
-	    else {
-	      ifa->ifa_addr = (struct sockaddr *)data;
-	      ifa_make_sockaddr(nlm_family, ifa->ifa_addr, ifamap.address, ifamap.address_len,
-				nlm_scope, nlm_index);
-	      data += NLMSG_ALIGN(ifa_sa_len(nlm_family, ifamap.address_len));
-	    }
-	  }
-#ifdef IFA_NETMASK
-	  if (ifamap.netmask) {
-	    if (!build)
-	      dlen += NLMSG_ALIGN(ifa_sa_len(nlm_family,ifamap.netmask_len));
-	    else {
-	      ifa->ifa_netmask = (struct sockaddr *)data;
-	      ifa_make_sockaddr(nlm_family, ifa->ifa_netmask, ifamap.netmask, ifamap.netmask_len,
-				nlm_scope, nlm_index);
-	      data += NLMSG_ALIGN(ifa_sa_len(nlm_family, ifamap.netmask_len));
-	    }
-	  }
-#endif
-	  if (ifamap.broadcast) {
-	    if (!build)
-	      dlen += NLMSG_ALIGN(ifa_sa_len(nlm_family,ifamap.broadcast_len));
-	    else {
-	      ifa->ifa_broadaddr = (struct sockaddr *)data;
-	      ifa_make_sockaddr(nlm_family, ifa->ifa_broadaddr, ifamap.broadcast, ifamap.broadcast_len,
-				nlm_scope, nlm_index);
-	      data += NLMSG_ALIGN(ifa_sa_len(nlm_family, ifamap.broadcast_len));
-	    }
-	  }
-#ifdef HAVE_IFADDRS_IFA_ANYCAST
-	  if (ifamap.anycast) {
-	    if (!build)
-	      dlen += NLMSG_ALIGN(ifa_sa_len(nlm_family,ifamap.anycast_len));
-	    else {
-	      ifa->ifa_anycast = (struct sockaddr *)data;
-	      ifa_make_sockaddr(nlm_family, ifa->ifa_anyaddr, ifamap.anycast, ifamap.anycast_len,
-				nlm_scope, nlm_index);
-	      data += NLMSG_ALIGN(ifa_sa_len(nlm_family, ifamap.anycast_len));
-	    }
-	  }
-#endif
-	}
-	if (!build){
-#ifndef IFA_NETMASK
-	  dlen += sockaddr_size;
-#endif
-	  icnt++;
-	} else {
-	  if (ifa->ifa_name == NULL)
-	    ifa->ifa_name = iflist[nlm_index];
-#ifndef IFA_NETMASK
-	  if (ifa->ifa_addr && 
-	      ifa->ifa_addr->sa_family != AF_UNSPEC && 
-	      ifa->ifa_addr->sa_family != AF_PACKET){
-	    ifa->ifa_netmask = (struct sockaddr *)data;
-	    ifa_make_sockaddr_mask(ifa->ifa_addr->sa_family, ifa->ifa_netmask, nlm_prefixlen);
-	  }
-	  data += sockaddr_size;
-#endif
-	  ifl = ifa++;
-	}
-      }
-    }
-    if (!build){
-      if (icnt == 0 && (dlen + nlen + xlen == 0)){
-	if (ifap != NULL)
-	  *ifap = NULL;
-	break; /* cannot found any addresses */
-      }
-    }
-    else
-      free_data(NULL, ifdata);
-  }
-
-/* ---------------------------------- */
-  /* Finalize */
-  free_nlmsglist(nlmsg_list);
-  nl_close(sd);
-  return 0;
-}
-
-/* ---------------------------------------------------------------------- */
-void ROKEN_LIB_FUNCTION
-freeifaddrs(struct ifaddrs *ifa)
-{
-  free(ifa);
-}
-
-
-#else /* !AF_NETLINK */
-
-/*
- * The generic SIOCGIFCONF version.
- */
-
-static int
-getifaddrs2(struct ifaddrs **ifap, 
-	    int af, int siocgifconf, int siocgifflags,
-	    size_t ifreq_sz)
-{
-    int ret;
-    int fd;
-    size_t buf_size;
-    char *buf;
-    struct ifconf ifconf;
-    char *p;
-    size_t sz;
-    struct sockaddr sa_zero;
-    struct ifreq *ifr;
-    struct ifaddrs *start = NULL, **end = &start;
-
-    buf = NULL;
-
-    memset (&sa_zero, 0, sizeof(sa_zero));
-    fd = socket(af, SOCK_DGRAM, 0);
-    if (fd < 0)
-	return -1;
-
-    buf_size = 8192;
-    for (;;) {
-	buf = calloc(1, buf_size);
-	if (buf == NULL) {
-	    ret = ENOMEM;
-	    goto error_out;
-	}
-	ifconf.ifc_len = buf_size;
-	ifconf.ifc_buf = buf;
-
-	/*
-	 * Solaris returns EINVAL when the buffer is too small.
-	 */
-	if (ioctl (fd, siocgifconf, &ifconf) < 0 && errno != EINVAL) {
-	    ret = errno;
-	    goto error_out;
-	}
-	/*
-	 * Can the difference between a full and a overfull buf
-	 * be determined?
-	 */
-
-	if (ifconf.ifc_len < buf_size)
-	    break;
-	free (buf);
-	buf_size *= 2;
-    }
-
-    for (p = ifconf.ifc_buf;
-	 p < ifconf.ifc_buf + ifconf.ifc_len;
-	 p += sz) {
-	struct ifreq ifreq;
-	struct sockaddr *sa;
-	size_t salen;
-
-	ifr = (struct ifreq *)p;
-	sa  = &ifr->ifr_addr;
-
-	sz = ifreq_sz;
-	salen = sizeof(struct sockaddr);
-#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
-	salen = sa->sa_len;
-	sz = max(sz, sizeof(ifr->ifr_name) + sa->sa_len);
-#endif
-#ifdef SA_LEN
-	salen = SA_LEN(sa);
-	sz = max(sz, sizeof(ifr->ifr_name) + SA_LEN(sa));
-#endif
-	memset (&ifreq, 0, sizeof(ifreq));
-	memcpy (ifreq.ifr_name, ifr->ifr_name, sizeof(ifr->ifr_name));
-
-	if (ioctl(fd, siocgifflags, &ifreq) < 0) {
-	    ret = errno;
-	    goto error_out;
-	}
-
-	*end = malloc(sizeof(**end));
-	if (*end == NULL) {
-	    ret = ENOMEM;
-	    goto error_out;
-	}
-
-	(*end)->ifa_next = NULL;
-	(*end)->ifa_name = strdup(ifr->ifr_name);
-	(*end)->ifa_flags = ifreq.ifr_flags;
-	(*end)->ifa_addr = malloc(salen);
-	memcpy((*end)->ifa_addr, sa, salen);
-	(*end)->ifa_netmask = NULL;
-
-#if 0
-	/* fix these when we actually need them */
-	if(ifreq.ifr_flags & IFF_BROADCAST) {
-	    (*end)->ifa_broadaddr = malloc(sizeof(ifr->ifr_broadaddr));
-	    memcpy((*end)->ifa_broadaddr, &ifr->ifr_broadaddr, 
-		   sizeof(ifr->ifr_broadaddr));
-	} else if(ifreq.ifr_flags & IFF_POINTOPOINT) {
-	    (*end)->ifa_dstaddr = malloc(sizeof(ifr->ifr_dstaddr));
-	    memcpy((*end)->ifa_dstaddr, &ifr->ifr_dstaddr, 
-		   sizeof(ifr->ifr_dstaddr));
-	} else
-	    (*end)->ifa_dstaddr = NULL;
-#else
-	    (*end)->ifa_dstaddr = NULL;
-#endif
-
-	(*end)->ifa_data = NULL;
-
-	end = &(*end)->ifa_next;
-	
-    }
-    *ifap = start;
-    close(fd);
-    free(buf);
-    return 0;
-  error_out:
-    freeifaddrs(start);
-    close(fd);
-    free(buf);
-    errno = ret;
-    return -1;
-}
-
-#if defined(HAVE_IPV6) && defined(SIOCGLIFCONF) && defined(SIOCGLIFFLAGS)
-static int
-getlifaddrs2(struct ifaddrs **ifap, 
-	     int af, int siocgifconf, int siocgifflags,
-	     size_t ifreq_sz)
-{
-    int ret;
-    int fd;
-    size_t buf_size;
-    char *buf;
-    struct lifconf ifconf;
-    char *p;
-    size_t sz;
-    struct sockaddr sa_zero;
-    struct lifreq *ifr;
-    struct ifaddrs *start = NULL, **end = &start;
-
-    buf = NULL;
-
-    memset (&sa_zero, 0, sizeof(sa_zero));
-    fd = socket(af, SOCK_DGRAM, 0);
-    if (fd < 0)
-	return -1;
-
-    buf_size = 8192;
-    for (;;) {
-	buf = calloc(1, buf_size);
-	if (buf == NULL) {
-	    ret = ENOMEM;
-	    goto error_out;
-	}
-	ifconf.lifc_family = AF_UNSPEC;
-	ifconf.lifc_flags  = 0;
-	ifconf.lifc_len    = buf_size;
-	ifconf.lifc_buf    = buf;
-
-	/*
-	 * Solaris returns EINVAL when the buffer is too small.
-	 */
-	if (ioctl (fd, siocgifconf, &ifconf) < 0 && errno != EINVAL) {
-	    ret = errno;
-	    goto error_out;
-	}
-	/*
-	 * Can the difference between a full and a overfull buf
-	 * be determined?
-	 */
-
-	if (ifconf.lifc_len < buf_size)
-	    break;
-	free (buf);
-	buf_size *= 2;
-    }
-
-    for (p = ifconf.lifc_buf;
-	 p < ifconf.lifc_buf + ifconf.lifc_len;
-	 p += sz) {
-	struct lifreq ifreq;
-	struct sockaddr_storage *sa;
-	size_t salen;
-
-	ifr = (struct lifreq *)p;
-	sa  = &ifr->lifr_addr;
-
-	sz = ifreq_sz;
-	salen = sizeof(struct sockaddr_storage);
-#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
-	salen = sa->sa_len;
-	sz = max(sz, sizeof(ifr->ifr_name) + sa->sa_len);
-#endif
-#ifdef SA_LEN
-	salen = SA_LEN(sa);
-	sz = max(sz, sizeof(ifr->ifr_name) + SA_LEN(sa));
-#endif
-	memset (&ifreq, 0, sizeof(ifreq));
-	memcpy (ifreq.lifr_name, ifr->lifr_name, sizeof(ifr->lifr_name));
-
-	if (ioctl(fd, siocgifflags, &ifreq) < 0) {
-	    ret = errno;
-	    goto error_out;
-	}
-
-	*end = malloc(sizeof(**end));
-
-	(*end)->ifa_next = NULL;
-	(*end)->ifa_name = strdup(ifr->lifr_name);
-	(*end)->ifa_flags = ifreq.lifr_flags;
-	(*end)->ifa_addr = malloc(salen);
-	memcpy((*end)->ifa_addr, sa, salen);
-	(*end)->ifa_netmask = NULL;
-
-#if 0
-	/* fix these when we actually need them */
-	if(ifreq.ifr_flags & IFF_BROADCAST) {
-	    (*end)->ifa_broadaddr = malloc(sizeof(ifr->ifr_broadaddr));
-	    memcpy((*end)->ifa_broadaddr, &ifr->ifr_broadaddr, 
-		   sizeof(ifr->ifr_broadaddr));
-	} else if(ifreq.ifr_flags & IFF_POINTOPOINT) {
-	    (*end)->ifa_dstaddr = malloc(sizeof(ifr->ifr_dstaddr));
-	    memcpy((*end)->ifa_dstaddr, &ifr->ifr_dstaddr, 
-		   sizeof(ifr->ifr_dstaddr));
-	} else
-	    (*end)->ifa_dstaddr = NULL;
-#else
-	    (*end)->ifa_dstaddr = NULL;
-#endif
-
-	(*end)->ifa_data = NULL;
-
-	end = &(*end)->ifa_next;
-	
-    }
-    *ifap = start;
-    close(fd);
-    free(buf);
-    return 0;
-  error_out:
-    freeifaddrs(start);
-    close(fd);
-    free(buf);
-    errno = ret;
-    return -1;
-}
-#endif /* defined(HAVE_IPV6) && defined(SIOCGLIFCONF) && defined(SIOCGLIFFLAGS) */
-
-int ROKEN_LIB_FUNCTION
-getifaddrs(struct ifaddrs **ifap) 
-{
-    int ret = -1;
-    errno = ENXIO;
-#if defined(AF_INET6) && defined(SIOCGIF6CONF) && defined(SIOCGIF6FLAGS)
-    if (ret)
-	ret = getifaddrs2 (ifap, AF_INET6, SIOCGIF6CONF, SIOCGIF6FLAGS,
-			   sizeof(struct in6_ifreq));
-#endif
-#if defined(HAVE_IPV6) && defined(SIOCGLIFCONF) && defined(SIOCGLIFFLAGS)
-    if (ret)
-	ret = getlifaddrs2 (ifap, AF_INET6, SIOCGLIFCONF, SIOCGLIFFLAGS,
-			    sizeof(struct lifreq));
-#endif
-#if defined(HAVE_IPV6) && defined(SIOCGIFCONF)
-    if (ret)
-	ret = getifaddrs2 (ifap, AF_INET6, SIOCGIFCONF, SIOCGIFFLAGS,
-			   sizeof(struct ifreq));
-#endif
-#if defined(AF_INET) && defined(SIOCGIFCONF) && defined(SIOCGIFFLAGS)
-    if (ret)
-	ret = getifaddrs2 (ifap, AF_INET, SIOCGIFCONF, SIOCGIFFLAGS,
-			   sizeof(struct ifreq));
-#endif
-    return ret;
-}
-
-void ROKEN_LIB_FUNCTION
-freeifaddrs(struct ifaddrs *ifp)
-{
-    struct ifaddrs *p, *q;
-    
-    for(p = ifp; p; ) {
-	free(p->ifa_name);
-	if(p->ifa_addr)
-	    free(p->ifa_addr);
-	if(p->ifa_dstaddr) 
-	    free(p->ifa_dstaddr);
-	if(p->ifa_netmask) 
-	    free(p->ifa_netmask);
-	if(p->ifa_data)
-	    free(p->ifa_data);
-	q = p;
-	p = p->ifa_next;
-	free(q);
-    }
-}
-
-#endif /* !AF_NETLINK */
-
-#ifdef TEST
-
-void
-print_addr(const char *s, struct sockaddr *sa)
-{
-    int i;
-    printf("  %s=%d/", s, sa->sa_family);
-#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
-    for(i = 0; i < sa->sa_len - ((long)sa->sa_data - (long)&sa->sa_family); i++)
-	printf("%02x", ((unsigned char*)sa->sa_data)[i]);
-#else
-    for(i = 0; i < sizeof(sa->sa_data); i++) 
-	printf("%02x", ((unsigned char*)sa->sa_data)[i]);
-#endif
-    printf("\n");
-}
-
-void 
-print_ifaddrs(struct ifaddrs *x)
-{
-    struct ifaddrs *p;
-    
-    for(p = x; p; p = p->ifa_next) {
-	printf("%s\n", p->ifa_name);
-	printf("  flags=%x\n", p->ifa_flags);
-	if(p->ifa_addr)
-	    print_addr("addr", p->ifa_addr);
-	if(p->ifa_dstaddr) 
-	    print_addr("dstaddr", p->ifa_dstaddr);
-	if(p->ifa_netmask) 
-	    print_addr("netmask", p->ifa_netmask);
-	printf("  %p\n", p->ifa_data);
-    }
-}
-
-int
-main()
-{
-    struct ifaddrs *a = NULL, *b;
-    getifaddrs2(&a, AF_INET, SIOCGIFCONF, SIOCGIFFLAGS, sizeof(struct ifreq));
-    print_ifaddrs(a);
-    printf("---\n");
-    getifaddrs(&b);
-    print_ifaddrs(b);
-    return 0;
-}
-#endif