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Current Path: /usr/src/contrib/libpcap

📁 ..
📄 CHANGES(41.04 KB)
📄 CMakeLists.txt(84.97 KB)
📄 CONTRIBUTING.md(1.41 KB)
📄 CREDITS(11.47 KB)
📁 ChmodBPF
📄 INSTALL.md(15.44 KB)
📄 LICENSE(868 B)
📄 Makefile-devel-adds(614 B)
📄 Makefile.in(23.68 KB)
📄 README.md(3.71 KB)
📄 TODO(1.51 KB)
📄 VERSION(6 B)
📁 Win32
📄 aclocal.m4(30.92 KB)
📄 arcnet.h(2.39 KB)
📄 atmuni31.h(3.87 KB)
📄 bpf_dump.c(1.9 KB)
📄 bpf_filter.c(12.22 KB)
📄 bpf_image.c(7.38 KB)
📄 chmod_bpf(757 B)
📁 cmake
📄 cmake_uninstall.cmake.in(1.01 KB)
📄 cmakeconfig.h.in(11.15 KB)
📄 config.guess(43.17 KB)
📄 config.h.in(10.25 KB)
📄 config.sub(34.93 KB)
📄 configure(331.21 KB)
📄 configure.ac(64.36 KB)
📄 diag-control.h(8.3 KB)
📄 dlpisubs.c(9.41 KB)
📄 dlpisubs.h(702 B)
📁 doc
📄 etherent.c(3.43 KB)
📄 ethertype.h(3.47 KB)
📄 extract.h(9.23 KB)
📄 fad-getad.c(8.62 KB)
📄 fad-gifc.c(12.84 KB)
📄 fad-glifc.c(9.37 KB)
📄 fmtutils.c(6.35 KB)
📄 fmtutils.h(2.19 KB)
📄 ftmacros.h(4.22 KB)
📄 gencode.c(257 KB)
📄 gencode.h(11.44 KB)
📄 grammar.y(24.66 KB)
📄 ieee80211.h(5.25 KB)
📄 install-sh(5.45 KB)
📁 lbl
📄 libpcap.pc.in(484 B)
📄 llc.h(2.56 KB)
📁 missing
📄 mkdep(2.43 KB)
📁 msdos
📄 nametoaddr.c(18.83 KB)
📄 nametoaddr.h(2.12 KB)
📄 nlpid.h(1.66 KB)
📄 nomkdep(135 B)
📄 optimize.c(62.27 KB)
📄 optimize.h(1.29 KB)
📄 org.tcpdump.chmod_bpf.plist(441 B)
📁 pcap
📄 pcap-bpf.c(84.02 KB)
📄 pcap-bpf.h(2.24 KB)
📄 pcap-bt-linux.c(11.42 KB)
📄 pcap-bt-linux.h(1.76 KB)
📄 pcap-bt-monitor-linux.c(7.84 KB)
📄 pcap-bt-monitor-linux.h(1.64 KB)
📄 pcap-common.c(47.14 KB)
📄 pcap-common.h(2.29 KB)
📄 pcap-config.1(2.27 KB)
📄 pcap-config.in(1.8 KB)
📄 pcap-dag.c(37.15 KB)
📄 pcap-dag.h(457 B)
📄 pcap-dbus.c(10.03 KB)
📄 pcap-dbus.h(112 B)
📄 pcap-dll.rc(1.03 KB)
📄 pcap-dlpi.c(47.56 KB)
📄 pcap-dos.c(35.9 KB)
📄 pcap-dos.h(6.7 KB)
📄 pcap-enet.c(4.74 KB)
📄 pcap-filter.manmisc.in(33.54 KB)
📄 pcap-int.h(16.94 KB)
📄 pcap-libdlpi.c(12.11 KB)
📄 pcap-linktype.manmisc.in(2.33 KB)
📄 pcap-linux.c(207.89 KB)
📄 pcap-namedb.h(1.98 KB)
📄 pcap-netfilter-linux.c(20.48 KB)
📄 pcap-netfilter-linux.h(1.67 KB)
📄 pcap-netmap.c(7.82 KB)
📄 pcap-netmap.h(126 B)
📄 pcap-new.c(12.79 KB)
📄 pcap-nit.c(10.2 KB)
📄 pcap-npf.c(51.61 KB)
📄 pcap-null.c(1.9 KB)
📄 pcap-pf.c(18.48 KB)
📄 pcap-rdmasniff.c(10.98 KB)
📄 pcap-rdmasniff.h(140 B)
📄 pcap-rpcap-int.h(3.43 KB)
📄 pcap-rpcap.c(96.91 KB)
📄 pcap-rpcap.h(2.19 KB)
📄 pcap-savefile.manfile.in(5.11 KB)
📄 pcap-septel.c(8.69 KB)
📄 pcap-septel.h(512 B)
📄 pcap-sita.c(36.34 KB)
📄 pcap-sita.h(224 B)
📄 pcap-sita.html(37.43 KB)
📄 pcap-snf.c(14.75 KB)
📄 pcap-snf.h(110 B)
📄 pcap-snit.c(12.67 KB)
📄 pcap-snoop.c(13.26 KB)
📄 pcap-tc.c(34.21 KB)
📄 pcap-tc.h(1.9 KB)
📄 pcap-tstamp.manmisc.in(7.7 KB)
📄 pcap-types.h(1.93 KB)
📄 pcap-usb-linux.c(35.89 KB)
📄 pcap-usb-linux.h(1.75 KB)
📄 pcap.3pcap.in(29.62 KB)
📄 pcap.c(103.69 KB)
📄 pcap.h(2.17 KB)
📄 pcap_activate.3pcap(3.8 KB)
📄 pcap_breakloop.3pcap(3.98 KB)
📄 pcap_can_set_rfmon.3pcap(2.63 KB)
📄 pcap_close.3pcap(1.47 KB)
📄 pcap_compile.3pcap.in(3.02 KB)
📄 pcap_create.3pcap(2.19 KB)
📄 pcap_datalink.3pcap.in(2.39 KB)
📄 pcap_datalink_name_to_val.3pcap(1.82 KB)
📄 pcap_datalink_val_to_name.3pcap(2.47 KB)
📄 pcap_dump.3pcap(1.73 KB)
📄 pcap_dump_close.3pcap(1.49 KB)
📄 pcap_dump_file.3pcap(1.54 KB)
📄 pcap_dump_flush.3pcap(1.69 KB)
📄 pcap_dump_ftell.3pcap(2.11 KB)
📄 pcap_dump_open.3pcap.in(3.31 KB)
📄 pcap_file.3pcap(2.06 KB)
📄 pcap_fileno.3pcap(2 KB)
📄 pcap_findalldevs.3pcap(6.25 KB)
📄 pcap_freecode.3pcap(1.67 KB)
📄 pcap_get_required_select_timeout.3pcap(3.04 KB)
📄 pcap_get_selectable_fd.3pcap(4.66 KB)
📄 pcap_get_tstamp_precision.3pcap.in(1.83 KB)
📄 pcap_geterr.3pcap(1.84 KB)
📄 pcap_inject.3pcap(3.34 KB)
📄 pcap_is_swapped.3pcap(1.91 KB)
📄 pcap_lib_version.3pcap(1.6 KB)
📄 pcap_list_datalinks.3pcap.in(2.54 KB)
📄 pcap_list_tstamp_types.3pcap.in(2.98 KB)
📄 pcap_lookupdev.3pcap(2.47 KB)
📄 pcap_lookupnet.3pcap(1.95 KB)
📄 pcap_loop.3pcap(6.58 KB)
📄 pcap_major_version.3pcap(1.96 KB)
📄 pcap_next_ex.3pcap(4.86 KB)
📄 pcap_offline_filter.3pcap(1.95 KB)
📄 pcap_open_dead.3pcap.in(2.65 KB)
📄 pcap_open_live.3pcap(2.65 KB)
📄 pcap_open_offline.3pcap.in(3.8 KB)
📄 pcap_set_buffer_size.3pcap(1.79 KB)
📄 pcap_set_datalink.3pcap(1.84 KB)
📄 pcap_set_immediate_mode.3pcap.in(3.27 KB)
📄 pcap_set_promisc.3pcap(1.82 KB)
📄 pcap_set_protocol_linux.3pcap(2.81 KB)
📄 pcap_set_rfmon.3pcap(1.82 KB)
📄 pcap_set_snaplen.3pcap(1.74 KB)
📄 pcap_set_timeout.3pcap(2.15 KB)
📄 pcap_set_tstamp_precision.3pcap.in(2.38 KB)
📄 pcap_set_tstamp_type.3pcap.in(2.73 KB)
📄 pcap_setdirection.3pcap(2.36 KB)
📄 pcap_setfilter.3pcap(1.79 KB)
📄 pcap_setnonblock.3pcap(2.82 KB)
📄 pcap_snapshot.3pcap(1.91 KB)
📄 pcap_stats.3pcap(3.35 KB)
📄 pcap_statustostr.3pcap(1.55 KB)
📄 pcap_strerror.3pcap(1.54 KB)
📄 pcap_tstamp_type_name_to_val.3pcap(1.87 KB)
📄 pcap_tstamp_type_val_to_name.3pcap(1.99 KB)
📄 portability.h(5.46 KB)
📄 ppp.h(2.62 KB)
📄 rpcap-protocol.c(6.67 KB)
📄 rpcap-protocol.h(18.61 KB)
📁 rpcapd
📄 savefile.c(13.72 KB)
📄 scanner.l(14.36 KB)
📄 sf-pcap.c(30.33 KB)
📄 sf-pcap.h(1.69 KB)
📄 sf-pcapng.c(38.9 KB)
📄 sf-pcapng.h(1.41 KB)
📄 sockutils.c(52.26 KB)
📄 sockutils.h(5.22 KB)
📄 sunatmpos.h(2.09 KB)
📁 testprogs
📁 tests
📄 varattrs.h(2.38 KB)

Editing: fad-gifc.c

/* -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*- */
/*
 * Copyright (c) 1994, 1995, 1996, 1997, 1998
 *	The Regents of the University of California.  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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the Computer Systems
 *	Engineering Group at Lawrence Berkeley Laboratory.
 * 4. Neither the name of the University nor of the Laboratory may be used
 *    to endorse or promote products derived from this software without
 *    specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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>
#endif

#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#ifdef HAVE_SYS_SOCKIO_H
#include <sys/sockio.h>
#endif
#include <sys/time.h>				/* concession to AIX */

struct mbuf;		/* Squelch compiler warnings on some platforms for */
struct rtentry;		/* declarations in <net/if.h> */
#include <net/if.h>
#include <netinet/in.h>

#include <ctype.h>
#include <errno.h>
#include <memory.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#ifdef HAVE_LIMITS_H
#include <limits.h>
#else
#define INT_MAX		2147483647
#endif

#include "pcap-int.h"

#ifdef HAVE_OS_PROTO_H
#include "os-proto.h"
#endif

/*
 * This is fun.
 *
 * In older BSD systems, socket addresses were fixed-length, and
 * "sizeof (struct sockaddr)" gave the size of the structure.
 * All addresses fit within a "struct sockaddr".
 *
 * In newer BSD systems, the socket address is variable-length, and
 * there's an "sa_len" field giving the length of the structure;
 * this allows socket addresses to be longer than 2 bytes of family
 * and 14 bytes of data.
 *
 * Some commercial UNIXes use the old BSD scheme, some use the RFC 2553
 * variant of the old BSD scheme (with "struct sockaddr_storage" rather
 * than "struct sockaddr"), and some use the new BSD scheme.
 *
 * Some versions of GNU libc use neither scheme, but has an "SA_LEN()"
 * macro that determines the size based on the address family.  Other
 * versions don't have "SA_LEN()" (as it was in drafts of RFC 2553
 * but not in the final version).
 *
 * We assume that a UNIX that doesn't have "getifaddrs()" and doesn't have
 * SIOCGLIFCONF, but has SIOCGIFCONF, uses "struct sockaddr" for the
 * address in an entry returned by SIOCGIFCONF.
 */
#ifndef SA_LEN
#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
#define SA_LEN(addr)	((addr)->sa_len)
#else /* HAVE_STRUCT_SOCKADDR_SA_LEN */
#define SA_LEN(addr)	(sizeof (struct sockaddr))
#endif /* HAVE_STRUCT_SOCKADDR_SA_LEN */
#endif /* SA_LEN */

/*
 * This is also fun.
 *
 * There is no ioctl that returns the amount of space required for all
 * the data that SIOCGIFCONF could return, and if a buffer is supplied
 * that's not large enough for all the data SIOCGIFCONF could return,
 * on at least some platforms it just returns the data that'd fit with
 * no indication that there wasn't enough room for all the data, much
 * less an indication of how much more room is required.
 *
 * The only way to ensure that we got all the data is to pass a buffer
 * large enough that the amount of space in the buffer *not* filled in
 * is greater than the largest possible entry.
 *
 * We assume that's "sizeof(ifreq.ifr_name)" plus 255, under the assumption
 * that no address is more than 255 bytes (on systems where the "sa_len"
 * field in a "struct sockaddr" is 1 byte, e.g. newer BSDs, that's the
 * case, and addresses are unlikely to be bigger than that in any case).
 */
#define MAX_SA_LEN	255

/*
 * Get a list of all interfaces that are up and that we can open.
 * Returns -1 on error, 0 otherwise.
 * The list, as returned through "alldevsp", may be null if no interfaces
 * were up and could be opened.
 *
 * This is the implementation used on platforms that have SIOCGIFCONF but
 * don't have any other mechanism for getting a list of interfaces.
 *
 * XXX - or platforms that have other, better mechanisms but for which
 * we don't yet have code to use that mechanism; I think there's a better
 * way on Linux, for example, but if that better way is "getifaddrs()",
 * we already have that.
 */
int
pcap_findalldevs_interfaces(pcap_if_list_t *devlistp, char *errbuf,
    int (*check_usable)(const char *), get_if_flags_func get_flags_func)
{
	register int fd;
	register struct ifreq *ifrp, *ifend, *ifnext;
	size_t n;
	struct ifconf ifc;
	char *buf = NULL;
	unsigned buf_size;
#if defined (HAVE_SOLARIS) || defined (HAVE_HPUX10_20_OR_LATER)
	char *p, *q;
#endif
	struct ifreq ifrflags, ifrnetmask, ifrbroadaddr, ifrdstaddr;
	struct sockaddr *netmask, *broadaddr, *dstaddr;
	size_t netmask_size, broadaddr_size, dstaddr_size;
	int ret = 0;

/*
	 * Create a socket from which to fetch the list of interfaces.
	 */
	fd = socket(AF_INET, SOCK_DGRAM, 0);
	if (fd < 0) {
		pcap_fmt_errmsg_for_errno(errbuf, PCAP_ERRBUF_SIZE,
		    errno, "socket");
		return (-1);
	}

/*
	 * Start with an 8K buffer, and keep growing the buffer until
	 * we have more than "sizeof(ifrp->ifr_name) + MAX_SA_LEN"
	 * bytes left over in the buffer or we fail to get the
	 * interface list for some reason other than EINVAL (which is
	 * presumed here to mean "buffer is too small").
	 */
	buf_size = 8192;
	for (;;) {
		/*
		 * Don't let the buffer size get bigger than INT_MAX.
		 */
		if (buf_size > INT_MAX) {
			(void)pcap_snprintf(errbuf, PCAP_ERRBUF_SIZE,
			    "interface information requires more than %u bytes",
			    INT_MAX);
			(void)close(fd);
			return (-1);
		}
		buf = malloc(buf_size);
		if (buf == NULL) {
			pcap_fmt_errmsg_for_errno(errbuf, PCAP_ERRBUF_SIZE,
			    errno, "malloc");
			(void)close(fd);
			return (-1);
		}

ifc.ifc_len = buf_size;
		ifc.ifc_buf = buf;
		memset(buf, 0, buf_size);
		if (ioctl(fd, SIOCGIFCONF, (char *)&ifc) < 0
		    && errno != EINVAL) {
			pcap_fmt_errmsg_for_errno(errbuf, PCAP_ERRBUF_SIZE,
			    errno, "SIOCGIFCONF");
			(void)close(fd);
			free(buf);
			return (-1);
		}
		if (ifc.ifc_len < (int)buf_size &&
		    (buf_size - ifc.ifc_len) > sizeof(ifrp->ifr_name) + MAX_SA_LEN)
			break;
		free(buf);
		buf_size *= 2;
	}

ifrp = (struct ifreq *)buf;
	ifend = (struct ifreq *)(buf + ifc.ifc_len);

for (; ifrp < ifend; ifrp = ifnext) {
		/*
		 * XXX - what if this isn't an IPv4 address?  Can
		 * we still get the netmask, etc. with ioctls on
		 * an IPv4 socket?
		 *
		 * The answer is probably platform-dependent, and
		 * if the answer is "no" on more than one platform,
		 * the way you work around it is probably platform-
		 * dependent as well.
		 */
		n = SA_LEN(&ifrp->ifr_addr) + sizeof(ifrp->ifr_name);
		if (n < sizeof(*ifrp))
			ifnext = ifrp + 1;
		else
			ifnext = (struct ifreq *)((char *)ifrp + n);

/*
		 * XXX - The 32-bit compatibility layer for Linux on IA-64
		 * is slightly broken. It correctly converts the structures
		 * to and from kernel land from 64 bit to 32 bit but
		 * doesn't update ifc.ifc_len, leaving it larger than the
		 * amount really used. This means we read off the end
		 * of the buffer and encounter an interface with an
		 * "empty" name. Since this is highly unlikely to ever
		 * occur in a valid case we can just finish looking for
		 * interfaces if we see an empty name.
		 */
		if (!(*ifrp->ifr_name))
			break;

/*
		 * Skip entries that begin with "dummy".
		 * XXX - what are these?  Is this Linux-specific?
		 * Are there platforms on which we shouldn't do this?
		 */
		if (strncmp(ifrp->ifr_name, "dummy", 5) == 0)
			continue;

/*
		 * Can we capture on this device?
		 */
		if (!(*check_usable)(ifrp->ifr_name)) {
			/*
			 * No.
			 */
			continue;
		}

/*
		 * Get the flags for this interface.
		 */
		strncpy(ifrflags.ifr_name, ifrp->ifr_name,
		    sizeof(ifrflags.ifr_name));
		if (ioctl(fd, SIOCGIFFLAGS, (char *)&ifrflags) < 0) {
			if (errno == ENXIO)
				continue;
			pcap_fmt_errmsg_for_errno(errbuf, PCAP_ERRBUF_SIZE,
			    errno, "SIOCGIFFLAGS: %.*s",
			    (int)sizeof(ifrflags.ifr_name),
			    ifrflags.ifr_name);
			ret = -1;
			break;
		}

/*
		 * Get the netmask for this address on this interface.
		 */
		strncpy(ifrnetmask.ifr_name, ifrp->ifr_name,
		    sizeof(ifrnetmask.ifr_name));
		memcpy(&ifrnetmask.ifr_addr, &ifrp->ifr_addr,
		    sizeof(ifrnetmask.ifr_addr));
		if (ioctl(fd, SIOCGIFNETMASK, (char *)&ifrnetmask) < 0) {
			if (errno == EADDRNOTAVAIL) {
				/*
				 * Not available.
				 */
				netmask = NULL;
				netmask_size = 0;
			} else {
				pcap_fmt_errmsg_for_errno(errbuf,
				    PCAP_ERRBUF_SIZE, errno,
				    "SIOCGIFNETMASK: %.*s",
				    (int)sizeof(ifrnetmask.ifr_name),
				    ifrnetmask.ifr_name);
				ret = -1;
				break;
			}
		} else {
			netmask = &ifrnetmask.ifr_addr;
			netmask_size = SA_LEN(netmask);
		}

/*
		 * Get the broadcast address for this address on this
		 * interface (if any).
		 */
		if (ifrflags.ifr_flags & IFF_BROADCAST) {
			strncpy(ifrbroadaddr.ifr_name, ifrp->ifr_name,
			    sizeof(ifrbroadaddr.ifr_name));
			memcpy(&ifrbroadaddr.ifr_addr, &ifrp->ifr_addr,
			    sizeof(ifrbroadaddr.ifr_addr));
			if (ioctl(fd, SIOCGIFBRDADDR,
			    (char *)&ifrbroadaddr) < 0) {
				if (errno == EADDRNOTAVAIL) {
					/*
					 * Not available.
					 */
					broadaddr = NULL;
					broadaddr_size = 0;
				} else {
					pcap_fmt_errmsg_for_errno(errbuf,
					    PCAP_ERRBUF_SIZE, errno,
					    "SIOCGIFBRDADDR: %.*s",
					    (int)sizeof(ifrbroadaddr.ifr_name),
					    ifrbroadaddr.ifr_name);
					ret = -1;
					break;
				}
			} else {
				broadaddr = &ifrbroadaddr.ifr_broadaddr;
				broadaddr_size = SA_LEN(broadaddr);
			}
		} else {
			/*
			 * Not a broadcast interface, so no broadcast
			 * address.
			 */
			broadaddr = NULL;
			broadaddr_size = 0;
		}

/*
		 * Get the destination address for this address on this
		 * interface (if any).
		 */
		if (ifrflags.ifr_flags & IFF_POINTOPOINT) {
			strncpy(ifrdstaddr.ifr_name, ifrp->ifr_name,
			    sizeof(ifrdstaddr.ifr_name));
			memcpy(&ifrdstaddr.ifr_addr, &ifrp->ifr_addr,
			    sizeof(ifrdstaddr.ifr_addr));
			if (ioctl(fd, SIOCGIFDSTADDR,
			    (char *)&ifrdstaddr) < 0) {
				if (errno == EADDRNOTAVAIL) {
					/*
					 * Not available.
					 */
					dstaddr = NULL;
					dstaddr_size = 0;
				} else {
					pcap_fmt_errmsg_for_errno(errbuf,
					    PCAP_ERRBUF_SIZE, errno,
					    "SIOCGIFDSTADDR: %.*s",
					    (int)sizeof(ifrdstaddr.ifr_name),
					    ifrdstaddr.ifr_name);
					ret = -1;
					break;
				}
			} else {
				dstaddr = &ifrdstaddr.ifr_dstaddr;
				dstaddr_size = SA_LEN(dstaddr);
			}
		} else {
			/*
			 * Not a point-to-point interface, so no destination
			 * address.
			 */
			dstaddr = NULL;
			dstaddr_size = 0;
		}

#if defined (HAVE_SOLARIS) || defined (HAVE_HPUX10_20_OR_LATER)
		/*
		 * If this entry has a colon followed by a number at
		 * the end, it's a logical interface.  Those are just
		 * the way you assign multiple IP addresses to a real
		 * interface, so an entry for a logical interface should
		 * be treated like the entry for the real interface;
		 * we do that by stripping off the ":" and the number.
		 */
		p = strchr(ifrp->ifr_name, ':');
		if (p != NULL) {
			/*
			 * We have a ":"; is it followed by a number?
			 */
			q = p + 1;
			while (isdigit((unsigned char)*q))
				q++;
			if (*q == '\0') {
				/*
				 * All digits after the ":" until the end.
				 * Strip off the ":" and everything after
				 * it.
				 */
				*p = '\0';
			}
		}
#endif

/*
		 * Add information for this address to the list.
		 */
		if (add_addr_to_if(devlistp, ifrp->ifr_name,
		    ifrflags.ifr_flags, get_flags_func,
		    &ifrp->ifr_addr, SA_LEN(&ifrp->ifr_addr),
		    netmask, netmask_size, broadaddr, broadaddr_size,
		    dstaddr, dstaddr_size, errbuf) < 0) {
			ret = -1;
			break;
		}
	}
	free(buf);
	(void)close(fd);

return (ret);
}

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