Flatten vendor/libpcap and remove keyword expansion.

1 files changed, 0 insertions, 918 deletions

diff --git a/contrib/libpcap/pcap.c b/contrib/libpcap/pcap.c
deleted file mode 100644
index 0822e1a..0000000
--- a/contrib/libpcap/pcap.c
+++ /dev/null
@@ -1,918 +0,0 @@
-/*
- * Copyright (c) 1993, 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.
- */
-
-#ifndef lint
-static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/libpcap/pcap.c,v 1.88.2.19 2007/09/19 02:50:52 guy Exp $ (LBL)";
-#endif
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#ifdef WIN32
-#include <pcap-stdinc.h>
-#else /* WIN32 */
-#include <sys/types.h>
-#endif /* WIN32 */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#if !defined(_MSC_VER) && !defined(__BORLANDC__)
-#include <unistd.h>
-#endif
-#include <fcntl.h>
-#include <errno.h>
-
-#ifdef HAVE_OS_PROTO_H
-#include "os-proto.h"
-#endif
-
-#ifdef MSDOS
-#include "pcap-dos.h"
-#endif
-
-#include "pcap-int.h"
-
-#ifdef HAVE_DAG_API
-#include <dagnew.h>
-#include <dagapi.h>
-#endif
-
-int
-pcap_dispatch(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
-{
-
-	return p->read_op(p, cnt, callback, user);
-}
-
-/*
- * XXX - is this necessary?
- */
-int
-pcap_read(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
-{
-
-	return p->read_op(p, cnt, callback, user);
-}
-
-int
-pcap_loop(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
-{
-	register int n;
-
-	for (;;) {
-		if (p->sf.rfile != NULL) {
-			/*
-			 * 0 means EOF, so don't loop if we get 0.
-			 */
-			n = pcap_offline_read(p, cnt, callback, user);
-		} else {
-			/*
-			 * XXX keep reading until we get something
-			 * (or an error occurs)
-			 */
-			do {
-				n = p->read_op(p, cnt, callback, user);
-			} while (n == 0);
-		}
-		if (n <= 0)
-			return (n);
-		if (cnt > 0) {
-			cnt -= n;
-			if (cnt <= 0)
-				return (0);
-		}
-	}
-}
-
-struct singleton {
-	struct pcap_pkthdr *hdr;
-	const u_char *pkt;
-};
-
-
-static void
-pcap_oneshot(u_char *userData, const struct pcap_pkthdr *h, const u_char *pkt)
-{
-	struct singleton *sp = (struct singleton *)userData;
-	*sp->hdr = *h;
-	sp->pkt = pkt;
-}
-
-const u_char *
-pcap_next(pcap_t *p, struct pcap_pkthdr *h)
-{
-	struct singleton s;
-
-	s.hdr = h;
-	if (pcap_dispatch(p, 1, pcap_oneshot, (u_char*)&s) <= 0)
-		return (0);
-	return (s.pkt);
-}
-
-struct pkt_for_fakecallback {
-	struct pcap_pkthdr *hdr;
-	const u_char **pkt;
-};
-
-static void
-pcap_fakecallback(u_char *userData, const struct pcap_pkthdr *h,
-    const u_char *pkt)
-{
-	struct pkt_for_fakecallback *sp = (struct pkt_for_fakecallback *)userData;
-
-	*sp->hdr = *h;
-	*sp->pkt = pkt;
-}
-
-int 
-pcap_next_ex(pcap_t *p, struct pcap_pkthdr **pkt_header,
-    const u_char **pkt_data)
-{
-	struct pkt_for_fakecallback s;
-
-	s.hdr = &p->pcap_header;
-	s.pkt = pkt_data;
-
-	/* Saves a pointer to the packet headers */
-	*pkt_header= &p->pcap_header;
-
-	if (p->sf.rfile != NULL) {
-		int status;
-
-		/* We are on an offline capture */
-		status = pcap_offline_read(p, 1, pcap_fakecallback,
-		    (u_char *)&s);
-
-		/*
-		 * Return codes for pcap_offline_read() are:
-		 *   -  0: EOF
-		 *   - -1: error
-		 *   - >1: OK
-		 * The first one ('0') conflicts with the return code of
-		 * 0 from pcap_read() meaning "no packets arrived before
-		 * the timeout expired", so we map it to -2 so you can
-		 * distinguish between an EOF from a savefile and a
-		 * "no packets arrived before the timeout expired, try
-		 * again" from a live capture.
-		 */
-		if (status == 0)
-			return (-2);
-		else
-			return (status);
-	}
-
-	/*
-	 * Return codes for pcap_read() are:
-	 *   -  0: timeout
-	 *   - -1: error
-	 *   - -2: loop was broken out of with pcap_breakloop()
-	 *   - >1: OK
-	 * The first one ('0') conflicts with the return code of 0 from
-	 * pcap_offline_read() meaning "end of file".
-	*/
-	return (p->read_op(p, 1, pcap_fakecallback, (u_char *)&s));
-}
-
-/*
- * Force the loop in "pcap_read()" or "pcap_read_offline()" to terminate.
- */
-void
-pcap_breakloop(pcap_t *p)
-{
-	p->break_loop = 1;
-}
-
-int
-pcap_datalink(pcap_t *p)
-{
-	return (p->linktype);
-}
-
-int
-pcap_list_datalinks(pcap_t *p, int **dlt_buffer)
-{
-	if (p->dlt_count == 0) {
-		/*
-		 * We couldn't fetch the list of DLTs, which means
-		 * this platform doesn't support changing the
-		 * DLT for an interface.  Return a list of DLTs
-		 * containing only the DLT this device supports.
-		 */
-		*dlt_buffer = (int*)malloc(sizeof(**dlt_buffer));
-		if (*dlt_buffer == NULL) {
-			(void)snprintf(p->errbuf, sizeof(p->errbuf),
-			    "malloc: %s", pcap_strerror(errno));
-			return (-1);
-		}
-		**dlt_buffer = p->linktype;
-		return (1);
-	} else {
-		*dlt_buffer = (int*)calloc(sizeof(**dlt_buffer), p->dlt_count);
-		if (*dlt_buffer == NULL) {
-			(void)snprintf(p->errbuf, sizeof(p->errbuf),
-			    "malloc: %s", pcap_strerror(errno));
-			return (-1);
-		}
-		(void)memcpy(*dlt_buffer, p->dlt_list,
-		    sizeof(**dlt_buffer) * p->dlt_count);
-		return (p->dlt_count);
-	}
-}
-
-int
-pcap_set_datalink(pcap_t *p, int dlt)
-{
-	int i;
-	const char *dlt_name;
-
-	if (p->dlt_count == 0 || p->set_datalink_op == NULL) {
-		/*
-		 * We couldn't fetch the list of DLTs, or we don't
-		 * have a "set datalink" operation, which means
-		 * this platform doesn't support changing the
-		 * DLT for an interface.  Check whether the new
-		 * DLT is the one this interface supports.
-		 */
-		if (p->linktype != dlt)
-			goto unsupported;
-
-		/*
-		 * It is, so there's nothing we need to do here.
-		 */
-		return (0);
-	}
-	for (i = 0; i < p->dlt_count; i++)
-		if (p->dlt_list[i] == dlt)
-			break;
-	if (i >= p->dlt_count)
-		goto unsupported;
-	if (p->dlt_count == 2 && p->dlt_list[0] == DLT_EN10MB &&
-	    dlt == DLT_DOCSIS) {
-		/*
-		 * This is presumably an Ethernet device, as the first
-		 * link-layer type it offers is DLT_EN10MB, and the only
-		 * other type it offers is DLT_DOCSIS.  That means that
-		 * we can't tell the driver to supply DOCSIS link-layer
-		 * headers - we're just pretending that's what we're
-		 * getting, as, presumably, we're capturing on a dedicated
-		 * link to a Cisco Cable Modem Termination System, and
-		 * it's putting raw DOCSIS frames on the wire inside low-level
-		 * Ethernet framing.
-		 */
-		p->linktype = dlt;
-		return (0);
-	}
-	if (p->set_datalink_op(p, dlt) == -1)
-		return (-1);
-	p->linktype = dlt;
-	return (0);
-
-unsupported:
-	dlt_name = pcap_datalink_val_to_name(dlt);
-	if (dlt_name != NULL) {
-		(void) snprintf(p->errbuf, sizeof(p->errbuf),
-		    "%s is not one of the DLTs supported by this device",
-		    dlt_name);
-	} else {
-		(void) snprintf(p->errbuf, sizeof(p->errbuf),
-		    "DLT %d is not one of the DLTs supported by this device",
-		    dlt);
-	}
-	return (-1);
-}
-
-struct dlt_choice {
-	const char *name;
-	const char *description;
-	int	dlt;
-};
-
-#define DLT_CHOICE(code, description) { #code, description, code }
-#define DLT_CHOICE_SENTINEL { NULL, NULL, 0 }
-
-static struct dlt_choice dlt_choices[] = {
-	DLT_CHOICE(DLT_NULL, "BSD loopback"),
-	DLT_CHOICE(DLT_EN10MB, "Ethernet"),
-	DLT_CHOICE(DLT_IEEE802, "Token ring"),
-	DLT_CHOICE(DLT_ARCNET, "ARCNET"),
-	DLT_CHOICE(DLT_SLIP, "SLIP"),
-	DLT_CHOICE(DLT_PPP, "PPP"),
-	DLT_CHOICE(DLT_FDDI, "FDDI"),
-	DLT_CHOICE(DLT_ATM_RFC1483, "RFC 1483 LLC-encapsulated ATM"),
-	DLT_CHOICE(DLT_RAW, "Raw IP"),
-	DLT_CHOICE(DLT_SLIP_BSDOS, "BSD/OS SLIP"),
-	DLT_CHOICE(DLT_PPP_BSDOS, "BSD/OS PPP"),
-	DLT_CHOICE(DLT_ATM_CLIP, "Linux Classical IP-over-ATM"),
-	DLT_CHOICE(DLT_PPP_SERIAL, "PPP over serial"),
-	DLT_CHOICE(DLT_PPP_ETHER, "PPPoE"),
-	DLT_CHOICE(DLT_C_HDLC, "Cisco HDLC"),
-	DLT_CHOICE(DLT_IEEE802_11, "802.11"),
-	DLT_CHOICE(DLT_FRELAY, "Frame Relay"),
-	DLT_CHOICE(DLT_LOOP, "OpenBSD loopback"),
-	DLT_CHOICE(DLT_ENC, "OpenBSD encapsulated IP"),
-	DLT_CHOICE(DLT_LINUX_SLL, "Linux cooked"),
-	DLT_CHOICE(DLT_LTALK, "Localtalk"),
-	DLT_CHOICE(DLT_PFLOG, "OpenBSD pflog file"),
-	DLT_CHOICE(DLT_PRISM_HEADER, "802.11 plus Prism header"),
-	DLT_CHOICE(DLT_IP_OVER_FC, "RFC 2625 IP-over-Fibre Channel"),
-	DLT_CHOICE(DLT_SUNATM, "Sun raw ATM"),
-	DLT_CHOICE(DLT_IEEE802_11_RADIO, "802.11 plus BSD radio information header"),
-	DLT_CHOICE(DLT_APPLE_IP_OVER_IEEE1394, "Apple IP-over-IEEE 1394"),
-	DLT_CHOICE(DLT_ARCNET_LINUX, "Linux ARCNET"),
-	DLT_CHOICE(DLT_DOCSIS, "DOCSIS"),
-	DLT_CHOICE(DLT_LINUX_IRDA, "Linux IrDA"),
-	DLT_CHOICE(DLT_LINUX_LAPD, "Linux vISDN LAPD"),
-	DLT_CHOICE(DLT_IEEE802_11_RADIO_AVS, "802.11 plus AVS radio information header"),
-        DLT_CHOICE(DLT_SYMANTEC_FIREWALL, "Symantec Firewall"),
-        DLT_CHOICE(DLT_JUNIPER_ATM1, "Juniper ATM1 PIC"),
-        DLT_CHOICE(DLT_JUNIPER_ATM2, "Juniper ATM2 PIC"),
-        DLT_CHOICE(DLT_JUNIPER_MLPPP, "Juniper Multi-Link PPP"),
-	DLT_CHOICE(DLT_PPP_PPPD, "PPP for pppd, with direction flag"),
-	DLT_CHOICE(DLT_JUNIPER_PPPOE, "Juniper PPPoE"),
-	DLT_CHOICE(DLT_JUNIPER_PPPOE_ATM, "Juniper PPPoE/ATM"),
-	DLT_CHOICE(DLT_GPRS_LLC, "GPRS LLC"),
-	DLT_CHOICE(DLT_GPF_T, "GPF-T"),
-	DLT_CHOICE(DLT_GPF_F, "GPF-F"),
-	DLT_CHOICE(DLT_JUNIPER_PIC_PEER, "Juniper PIC Peer"),
-	DLT_CHOICE(DLT_JUNIPER_MLFR, "Juniper Multi-Link Frame Relay"),
-	DLT_CHOICE(DLT_ERF_ETH,	"Ethernet with Endace ERF header"),
-	DLT_CHOICE(DLT_ERF_POS, "Packet-over-SONET with Endace ERF header"),
-        DLT_CHOICE(DLT_JUNIPER_GGSN, "Juniper GGSN PIC"),
-        DLT_CHOICE(DLT_JUNIPER_ES, "Juniper Encryption Services PIC"),
-        DLT_CHOICE(DLT_JUNIPER_MONITOR, "Juniper Passive Monitor PIC"),
-        DLT_CHOICE(DLT_JUNIPER_SERVICES, "Juniper Advanced Services PIC"),
-	DLT_CHOICE(DLT_JUNIPER_MFR, "Juniper FRF.16 Frame Relay"),
-	DLT_CHOICE(DLT_JUNIPER_ETHER, "Juniper Ethernet"),
-	DLT_CHOICE(DLT_JUNIPER_PPP, "Juniper PPP"),
-	DLT_CHOICE(DLT_JUNIPER_FRELAY, "Juniper Frame Relay"),
-	DLT_CHOICE(DLT_JUNIPER_CHDLC, "Juniper C-HDLC"),
-	DLT_CHOICE(DLT_MFR, "FRF.16 Frame Relay"),
-	DLT_CHOICE(DLT_JUNIPER_VP, "Juniper Voice PIC"),
-	DLT_CHOICE(DLT_MTP2, "SS7 MTP2"),
-	DLT_CHOICE(DLT_A429, "Arinc 429"),
-	DLT_CHOICE(DLT_A653_ICM, "Arinc 653 Interpartition Communication"),
-	DLT_CHOICE(DLT_USB, "USB"),
-	DLT_CHOICE(DLT_BLUETOOTH_HCI_H4, "Bluetooth HCI UART transport layer"),
-	DLT_CHOICE(DLT_CAN20B, "Controller Area Network (CAN) v. 2.0B"),
-	DLT_CHOICE(DLT_MTP2_WITH_PHDR, "SS7 MTP2 with Pseudo-header"),
-	DLT_CHOICE_SENTINEL
-};
-
-/*
- * This array is designed for mapping upper and lower case letter
- * together for a case independent comparison.  The mappings are
- * based upon ascii character sequences.
- */
-static const u_char charmap[] = {
-	(u_char)'\000', (u_char)'\001', (u_char)'\002', (u_char)'\003',
-	(u_char)'\004', (u_char)'\005', (u_char)'\006', (u_char)'\007',
-	(u_char)'\010', (u_char)'\011', (u_char)'\012', (u_char)'\013',
-	(u_char)'\014', (u_char)'\015', (u_char)'\016', (u_char)'\017',
-	(u_char)'\020', (u_char)'\021', (u_char)'\022', (u_char)'\023',
-	(u_char)'\024', (u_char)'\025', (u_char)'\026', (u_char)'\027',
-	(u_char)'\030', (u_char)'\031', (u_char)'\032', (u_char)'\033',
-	(u_char)'\034', (u_char)'\035', (u_char)'\036', (u_char)'\037',
-	(u_char)'\040', (u_char)'\041', (u_char)'\042', (u_char)'\043',
-	(u_char)'\044', (u_char)'\045', (u_char)'\046', (u_char)'\047',
-	(u_char)'\050', (u_char)'\051', (u_char)'\052', (u_char)'\053',
-	(u_char)'\054', (u_char)'\055', (u_char)'\056', (u_char)'\057',
-	(u_char)'\060', (u_char)'\061', (u_char)'\062', (u_char)'\063',
-	(u_char)'\064', (u_char)'\065', (u_char)'\066', (u_char)'\067',
-	(u_char)'\070', (u_char)'\071', (u_char)'\072', (u_char)'\073',
-	(u_char)'\074', (u_char)'\075', (u_char)'\076', (u_char)'\077',
-	(u_char)'\100', (u_char)'\141', (u_char)'\142', (u_char)'\143',
-	(u_char)'\144', (u_char)'\145', (u_char)'\146', (u_char)'\147',
-	(u_char)'\150', (u_char)'\151', (u_char)'\152', (u_char)'\153',
-	(u_char)'\154', (u_char)'\155', (u_char)'\156', (u_char)'\157',
-	(u_char)'\160', (u_char)'\161', (u_char)'\162', (u_char)'\163',
-	(u_char)'\164', (u_char)'\165', (u_char)'\166', (u_char)'\167',
-	(u_char)'\170', (u_char)'\171', (u_char)'\172', (u_char)'\133',
-	(u_char)'\134', (u_char)'\135', (u_char)'\136', (u_char)'\137',
-	(u_char)'\140', (u_char)'\141', (u_char)'\142', (u_char)'\143',
-	(u_char)'\144', (u_char)'\145', (u_char)'\146', (u_char)'\147',
-	(u_char)'\150', (u_char)'\151', (u_char)'\152', (u_char)'\153',
-	(u_char)'\154', (u_char)'\155', (u_char)'\156', (u_char)'\157',
-	(u_char)'\160', (u_char)'\161', (u_char)'\162', (u_char)'\163',
-	(u_char)'\164', (u_char)'\165', (u_char)'\166', (u_char)'\167',
-	(u_char)'\170', (u_char)'\171', (u_char)'\172', (u_char)'\173',
-	(u_char)'\174', (u_char)'\175', (u_char)'\176', (u_char)'\177',
-	(u_char)'\200', (u_char)'\201', (u_char)'\202', (u_char)'\203',
-	(u_char)'\204', (u_char)'\205', (u_char)'\206', (u_char)'\207',
-	(u_char)'\210', (u_char)'\211', (u_char)'\212', (u_char)'\213',
-	(u_char)'\214', (u_char)'\215', (u_char)'\216', (u_char)'\217',
-	(u_char)'\220', (u_char)'\221', (u_char)'\222', (u_char)'\223',
-	(u_char)'\224', (u_char)'\225', (u_char)'\226', (u_char)'\227',
-	(u_char)'\230', (u_char)'\231', (u_char)'\232', (u_char)'\233',
-	(u_char)'\234', (u_char)'\235', (u_char)'\236', (u_char)'\237',
-	(u_char)'\240', (u_char)'\241', (u_char)'\242', (u_char)'\243',
-	(u_char)'\244', (u_char)'\245', (u_char)'\246', (u_char)'\247',
-	(u_char)'\250', (u_char)'\251', (u_char)'\252', (u_char)'\253',
-	(u_char)'\254', (u_char)'\255', (u_char)'\256', (u_char)'\257',
-	(u_char)'\260', (u_char)'\261', (u_char)'\262', (u_char)'\263',
-	(u_char)'\264', (u_char)'\265', (u_char)'\266', (u_char)'\267',
-	(u_char)'\270', (u_char)'\271', (u_char)'\272', (u_char)'\273',
-	(u_char)'\274', (u_char)'\275', (u_char)'\276', (u_char)'\277',
-	(u_char)'\300', (u_char)'\341', (u_char)'\342', (u_char)'\343',
-	(u_char)'\344', (u_char)'\345', (u_char)'\346', (u_char)'\347',
-	(u_char)'\350', (u_char)'\351', (u_char)'\352', (u_char)'\353',
-	(u_char)'\354', (u_char)'\355', (u_char)'\356', (u_char)'\357',
-	(u_char)'\360', (u_char)'\361', (u_char)'\362', (u_char)'\363',
-	(u_char)'\364', (u_char)'\365', (u_char)'\366', (u_char)'\367',
-	(u_char)'\370', (u_char)'\371', (u_char)'\372', (u_char)'\333',
-	(u_char)'\334', (u_char)'\335', (u_char)'\336', (u_char)'\337',
-	(u_char)'\340', (u_char)'\341', (u_char)'\342', (u_char)'\343',
-	(u_char)'\344', (u_char)'\345', (u_char)'\346', (u_char)'\347',
-	(u_char)'\350', (u_char)'\351', (u_char)'\352', (u_char)'\353',
-	(u_char)'\354', (u_char)'\355', (u_char)'\356', (u_char)'\357',
-	(u_char)'\360', (u_char)'\361', (u_char)'\362', (u_char)'\363',
-	(u_char)'\364', (u_char)'\365', (u_char)'\366', (u_char)'\367',
-	(u_char)'\370', (u_char)'\371', (u_char)'\372', (u_char)'\373',
-	(u_char)'\374', (u_char)'\375', (u_char)'\376', (u_char)'\377',
-};
-
-int
-pcap_strcasecmp(const char *s1, const char *s2)
-{
-	register const u_char	*cm = charmap,
-				*us1 = (const u_char *)s1,
-				*us2 = (const u_char *)s2;
-
-	while (cm[*us1] == cm[*us2++])
-		if (*us1++ == '\0')
-			return(0);
-	return (cm[*us1] - cm[*--us2]);
-}
-
-int
-pcap_datalink_name_to_val(const char *name)
-{
-	int i;
-
-	for (i = 0; dlt_choices[i].name != NULL; i++) {
-		if (pcap_strcasecmp(dlt_choices[i].name + sizeof("DLT_") - 1,
-		    name) == 0)
-			return (dlt_choices[i].dlt);
-	}
-	return (-1);
-}
-
-const char *
-pcap_datalink_val_to_name(int dlt)
-{
-	int i;
-
-	for (i = 0; dlt_choices[i].name != NULL; i++) {
-		if (dlt_choices[i].dlt == dlt)
-			return (dlt_choices[i].name + sizeof("DLT_") - 1);
-	}
-	return (NULL);
-}
-
-const char *
-pcap_datalink_val_to_description(int dlt)
-{
-	int i;
-
-	for (i = 0; dlt_choices[i].name != NULL; i++) {
-		if (dlt_choices[i].dlt == dlt)
-			return (dlt_choices[i].description);
-	}
-	return (NULL);
-}
-
-int
-pcap_snapshot(pcap_t *p)
-{
-	return (p->snapshot);
-}
-
-int
-pcap_is_swapped(pcap_t *p)
-{
-	return (p->sf.swapped);
-}
-
-int
-pcap_major_version(pcap_t *p)
-{
-	return (p->sf.version_major);
-}
-
-int
-pcap_minor_version(pcap_t *p)
-{
-	return (p->sf.version_minor);
-}
-
-FILE *
-pcap_file(pcap_t *p)
-{
-	return (p->sf.rfile);
-}
-
-int
-pcap_fileno(pcap_t *p)
-{
-#ifndef WIN32
-	return (p->fd);
-#else
-	if (p->adapter != NULL)
-		return ((int)(DWORD)p->adapter->hFile);
-	else
-		return (-1);
-#endif
-}
-
-#if !defined(WIN32) && !defined(MSDOS)
-int
-pcap_get_selectable_fd(pcap_t *p)
-{
-	return (p->selectable_fd);
-}
-#endif
-
-void
-pcap_perror(pcap_t *p, char *prefix)
-{
-	fprintf(stderr, "%s: %s\n", prefix, p->errbuf);
-}
-
-char *
-pcap_geterr(pcap_t *p)
-{
-	return (p->errbuf);
-}
-
-int
-pcap_getnonblock(pcap_t *p, char *errbuf)
-{
-	return p->getnonblock_op(p, errbuf);
-}
-
-/*
- * Get the current non-blocking mode setting, under the assumption that
- * it's just the standard POSIX non-blocking flag.
- *
- * We don't look at "p->nonblock", in case somebody tweaked the FD
- * directly.
- */
-#if !defined(WIN32) && !defined(MSDOS)
-int
-pcap_getnonblock_fd(pcap_t *p, char *errbuf)
-{
-	int fdflags;
-
-	fdflags = fcntl(p->fd, F_GETFL, 0);
-	if (fdflags == -1) {
-		snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "F_GETFL: %s",
-		    pcap_strerror(errno));
-		return (-1);
-	}
-	if (fdflags & O_NONBLOCK)
-		return (1);
-	else
-		return (0);
-}
-#endif
-
-int
-pcap_setnonblock(pcap_t *p, int nonblock, char *errbuf)
-{
-	return p->setnonblock_op(p, nonblock, errbuf);
-}
-
-#if !defined(WIN32) && !defined(MSDOS)
-/*
- * Set non-blocking mode, under the assumption that it's just the
- * standard POSIX non-blocking flag.  (This can be called by the
- * per-platform non-blocking-mode routine if that routine also
- * needs to do some additional work.)
- */
-int
-pcap_setnonblock_fd(pcap_t *p, int nonblock, char *errbuf)
-{
-	int fdflags;
-
-	fdflags = fcntl(p->fd, F_GETFL, 0);
-	if (fdflags == -1) {
-		snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "F_GETFL: %s",
-		    pcap_strerror(errno));
-		return (-1);
-	}
-	if (nonblock)
-		fdflags |= O_NONBLOCK;
-	else
-		fdflags &= ~O_NONBLOCK;
-	if (fcntl(p->fd, F_SETFL, fdflags) == -1) {
-		snprintf(p->errbuf, PCAP_ERRBUF_SIZE, "F_SETFL: %s",
-		    pcap_strerror(errno));
-		return (-1);
-	}
-	return (0);
-}
-#endif
-
-#ifdef WIN32
-/*
- * Generate a string for the last Win32-specific error (i.e. an error generated when 
- * calling a Win32 API).
- * For errors occurred during standard C calls, we still use pcap_strerror()
- */
-char *
-pcap_win32strerror(void)
-{
-	DWORD error;
-	static char errbuf[PCAP_ERRBUF_SIZE+1];
-	int errlen;
-	char *p;
-
-	error = GetLastError();
-	FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, error, 0, errbuf,
-	    PCAP_ERRBUF_SIZE, NULL);
-
-	/*
-	 * "FormatMessage()" "helpfully" sticks CR/LF at the end of the
-	 * message.  Get rid of it.
-	 */
-	errlen = strlen(errbuf);
-	if (errlen >= 2) {
-		errbuf[errlen - 1] = '\0';
-		errbuf[errlen - 2] = '\0';
-	}
-	p = strchr(errbuf, '\0');
-	snprintf (p, sizeof(errbuf)-(p-errbuf), " (%lu)", error);
-	return (errbuf);
-}
-#endif
-
-/*
- * Not all systems have strerror().
- */
-const char *
-pcap_strerror(int errnum)
-{
-#ifdef HAVE_STRERROR
-	return (strerror(errnum));
-#else
-	extern int sys_nerr;
-	extern const char *const sys_errlist[];
-	static char ebuf[20];
-
-	if ((unsigned int)errnum < sys_nerr)
-		return ((char *)sys_errlist[errnum]);
-	(void)snprintf(ebuf, sizeof ebuf, "Unknown error: %d", errnum);
-	return(ebuf);
-#endif
-}
-
-int
-pcap_setfilter(pcap_t *p, struct bpf_program *fp)
-{
-	return p->setfilter_op(p, fp);
-}
-
-/*
- * Set direction flag, which controls whether we accept only incoming
- * packets, only outgoing packets, or both.
- * Note that, depending on the platform, some or all direction arguments
- * might not be supported.
- */
-int
-pcap_setdirection(pcap_t *p, pcap_direction_t d)
-{
-	if (p->setdirection_op == NULL) {
-		snprintf(p->errbuf, PCAP_ERRBUF_SIZE,
-		    "Setting direction is not implemented on this platform");
-		return -1;
-	} else
-		return p->setdirection_op(p, d);
-}
-
-int
-pcap_stats(pcap_t *p, struct pcap_stat *ps)
-{
-	return p->stats_op(p, ps);
-}
-
-static int
-pcap_stats_dead(pcap_t *p, struct pcap_stat *ps _U_)
-{
-	snprintf(p->errbuf, PCAP_ERRBUF_SIZE,
-	    "Statistics aren't available from a pcap_open_dead pcap_t");
-	return (-1);
-}
-
-void
-pcap_close_common(pcap_t *p)
-{
-	if (p->buffer != NULL)
-		free(p->buffer);
-#if !defined(WIN32) && !defined(MSDOS)
-	if (p->fd >= 0)
-		close(p->fd);
-#endif
-}
-
-static void
-pcap_close_dead(pcap_t *p _U_)
-{
-	/* Nothing to do. */
-}
-
-pcap_t *
-pcap_open_dead(int linktype, int snaplen)
-{
-	pcap_t *p;
-
-	p = malloc(sizeof(*p));
-	if (p == NULL)
-		return NULL;
-	memset (p, 0, sizeof(*p));
-	p->snapshot = snaplen;
-	p->linktype = linktype;
-	p->stats_op = pcap_stats_dead;
-	p->close_op = pcap_close_dead;
-	return p;
-}
-
-/*
- * API compatible with WinPcap's "send a packet" routine - returns -1
- * on error, 0 otherwise.
- *
- * XXX - what if we get a short write?
- */
-int
-pcap_sendpacket(pcap_t *p, const u_char *buf, int size)
-{
-	if (p->inject_op(p, buf, size) == -1)
-		return (-1);
-	return (0);
-}
-
-/*
- * API compatible with OpenBSD's "send a packet" routine - returns -1 on
- * error, number of bytes written otherwise.
- */
-int
-pcap_inject(pcap_t *p, const void *buf, size_t size)
-{
-	return (p->inject_op(p, buf, size));
-}
-
-void
-pcap_close(pcap_t *p)
-{
-	p->close_op(p);
-	if (p->dlt_list != NULL)
-		free(p->dlt_list);
-	pcap_freecode(&p->fcode);
-	free(p);
-}
-
-/*
- * We make the version string static, and return a pointer to it, rather
- * than exporting the version string directly.  On at least some UNIXes,
- * if you import data from a shared library into an program, the data is
- * bound into the program binary, so if the string in the version of the
- * library with which the program was linked isn't the same as the
- * string in the version of the library with which the program is being
- * run, various undesirable things may happen (warnings, the string
- * being the one from the version of the library with which the program
- * was linked, or even weirder things, such as the string being the one
- * from the library but being truncated).
- */
-#ifdef HAVE_VERSION_H
-#include "version.h"
-#else
-static const char pcap_version_string[] = "libpcap version 0.9.8";
-#endif
-
-#ifdef WIN32
-/*
- * XXX - it'd be nice if we could somehow generate the WinPcap and libpcap
- * version numbers when building WinPcap.  (It'd be nice to do so for
- * the packet.dll version number as well.)
- */
-static const char wpcap_version_string[] = "4.0";
-static const char pcap_version_string_fmt[] =
-    "WinPcap version %s, based on %s";
-static const char pcap_version_string_packet_dll_fmt[] =
-    "WinPcap version %s (packet.dll version %s), based on %s";
-static char *full_pcap_version_string;
-
-const char *
-pcap_lib_version(void)
-{
-	char *packet_version_string;
-	size_t full_pcap_version_string_len;
-
-	if (full_pcap_version_string == NULL) {
-		/*
-		 * Generate the version string.
-		 */
-		packet_version_string = PacketGetVersion();
-		if (strcmp(wpcap_version_string, packet_version_string) == 0) {
-			/*
-			 * WinPcap version string and packet.dll version
-			 * string are the same; just report the WinPcap
-			 * version.
-			 */
-			full_pcap_version_string_len =
-			    (sizeof pcap_version_string_fmt - 4) +
-			    strlen(wpcap_version_string) +
-			    strlen(pcap_version_string);
-			full_pcap_version_string =
-			    malloc(full_pcap_version_string_len);
-			sprintf(full_pcap_version_string,
-			    pcap_version_string_fmt, wpcap_version_string,
-			    pcap_version_string);
-		} else {
-			/*
-			 * WinPcap version string and packet.dll version
-			 * string are different; that shouldn't be the
-			 * case (the two libraries should come from the
-			 * same version of WinPcap), so we report both
-			 * versions.
-			 */
-			full_pcap_version_string_len =
-			    (sizeof pcap_version_string_packet_dll_fmt - 6) +
-			    strlen(wpcap_version_string) +
-			    strlen(packet_version_string) +
-			    strlen(pcap_version_string);
-			full_pcap_version_string = malloc(full_pcap_version_string_len);
-
-			sprintf(full_pcap_version_string,
-			    pcap_version_string_packet_dll_fmt,
-			    wpcap_version_string, packet_version_string,
-			    pcap_version_string);
-		}
-	}
-	return (full_pcap_version_string);
-}
-
-#elif defined(MSDOS)
-
-static char *full_pcap_version_string;
-
-const char *
-pcap_lib_version (void)
-{
-	char *packet_version_string;
-	size_t full_pcap_version_string_len;
-	static char dospfx[] = "DOS-";
-
-	if (full_pcap_version_string == NULL) {
-		/*
-		 * Generate the version string.
-		 */
-		full_pcap_version_string_len =
-		    sizeof dospfx + strlen(pcap_version_string);
-		full_pcap_version_string =
-		    malloc(full_pcap_version_string_len);
-		strcpy(full_pcap_version_string, dospfx);
-		strcat(full_pcap_version_string, pcap_version_string);
-	}
-	return (full_pcap_version_string);
-}
-
-#else /* UN*X */
-
-const char *
-pcap_lib_version(void)
-{
-	return (pcap_version_string);
-}
-#endif