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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: pcap-new.c

/*
 * Copyright (c) 2002 - 2005 NetGroup, Politecnico di Torino (Italy)
 * Copyright (c) 2005 - 2008 CACE Technologies, Davis (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. Neither the name of the Politecnico di Torino, CACE Technologies
 * 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 COPYRIGHT HOLDERS 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 COPYRIGHT
 * OWNER 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 "ftmacros.h"

/*
 * sockutils.h may include <crtdbg.h> on Windows, and pcap-int.h will
 * include portability.h, and portability.h, on Windows, expects that
 * <crtdbg.h> has already been included, so include sockutils.h first.
 */
#include "sockutils.h"
#include "pcap-int.h"	// for the details of the pcap_t structure
#include "pcap-rpcap.h"
#include "rpcap-protocol.h"
#include <errno.h>		// for the errno variable
#include <stdlib.h>		// for malloc(), free(), ...
#include <string.h>		// for strstr, etc

#ifndef _WIN32
#include <dirent.h>		// for readdir
#endif

/* String identifier to be used in the pcap_findalldevs_ex() */
#define PCAP_TEXT_SOURCE_FILE "File"
#define PCAP_TEXT_SOURCE_FILE_LEN (sizeof PCAP_TEXT_SOURCE_FILE - 1)
/* String identifier to be used in the pcap_findalldevs_ex() */
#define PCAP_TEXT_SOURCE_ADAPTER "Network adapter"
#define PCAP_TEXT_SOURCE_ADAPTER_LEN (sizeof "Network adapter" - 1)

/* String identifier to be used in the pcap_findalldevs_ex() */
#define PCAP_TEXT_SOURCE_ON_LOCAL_HOST "on local host"
#define PCAP_TEXT_SOURCE_ON_LOCAL_HOST_LEN (sizeof PCAP_TEXT_SOURCE_ON_LOCAL_HOST + 1)

/****************************************************
 *                                                  *
 * Function bodies                                  *
 *                                                  *
 ****************************************************/

int pcap_findalldevs_ex(const char *source, struct pcap_rmtauth *auth, pcap_if_t **alldevs, char *errbuf)
{
	int type;
	char name[PCAP_BUF_SIZE], path[PCAP_BUF_SIZE], filename[PCAP_BUF_SIZE];
	size_t pathlen;
	size_t stringlen;
	pcap_t *fp;
	char tmpstring[PCAP_BUF_SIZE + 1];		/* Needed to convert names and descriptions from 'old' syntax to the 'new' one */
	pcap_if_t *lastdev;	/* Last device in the pcap_if_t list */
	pcap_if_t *dev;		/* Device we're adding to the pcap_if_t list */

/* List starts out empty. */
	(*alldevs) = NULL;
	lastdev = NULL;

if (strlen(source) > PCAP_BUF_SIZE)
	{
		pcap_snprintf(errbuf, PCAP_ERRBUF_SIZE, "The source string is too long. Cannot handle it correctly.");
		return -1;
	}

/*
	 * Determine the type of the source (file, local, remote)
	 * There are some differences if pcap_findalldevs_ex() is called to list files and remote adapters.
	 * In the first case, the name of the directory we have to look into must be present (therefore
	 * the 'name' parameter of the pcap_parsesrcstr() is present).
	 * In the second case, the name of the adapter is not required (we need just the host). So, we have
	 * to use a first time this function to get the source type, and a second time to get the appropriate
	 * info, which depends on the source type.
	 */
	if (pcap_parsesrcstr(source, &type, NULL, NULL, NULL, errbuf) == -1)
		return -1;

switch (type)
	{
	case PCAP_SRC_IFLOCAL:
		if (pcap_parsesrcstr(source, &type, NULL, NULL, NULL, errbuf) == -1)
			return -1;

/* Initialize temporary string */
		tmpstring[PCAP_BUF_SIZE] = 0;

/* The user wants to retrieve adapters from a local host */
		if (pcap_findalldevs(alldevs, errbuf) == -1)
			return -1;

if (*alldevs == NULL)
		{
			pcap_snprintf(errbuf, PCAP_ERRBUF_SIZE,
				"No interfaces found! Make sure libpcap/Npcap is properly installed"
				" on the local machine.");
			return -1;
		}

/* Scan all the interfaces and modify name and description */
		/* This is a trick in order to avoid the re-implementation of the pcap_findalldevs here */
		dev = *alldevs;
		while (dev)
		{
			char *localdesc, *desc;

/* Create the new device identifier */
			if (pcap_createsrcstr(tmpstring, PCAP_SRC_IFLOCAL, NULL, NULL, dev->name, errbuf) == -1)
				return -1;

/* Delete the old pointer */
			free(dev->name);

/* Make a copy of the new device identifier */
			dev->name = strdup(tmpstring);
			if (dev->name == NULL)
			{
				pcap_fmt_errmsg_for_errno(errbuf,
				    PCAP_ERRBUF_SIZE, errno,
				    "malloc() failed");
				pcap_freealldevs(*alldevs);
				return -1;
			}

/*
			 * Create the description.
			 */
			if ((dev->description == NULL) || (dev->description[0] == 0))
				localdesc = dev->name;
			else
				localdesc = dev->description;
			if (pcap_asprintf(&desc, "%s '%s' %s",
			    PCAP_TEXT_SOURCE_ADAPTER, localdesc,
			    PCAP_TEXT_SOURCE_ON_LOCAL_HOST) == -1)
			{
				pcap_fmt_errmsg_for_errno(errbuf,
				    PCAP_ERRBUF_SIZE, errno,
				    "malloc() failed");
				pcap_freealldevs(*alldevs);
				return -1;
			}

/* Now overwrite the description */
			free(dev->description);
			dev->description = desc;

dev = dev->next;
		}

return 0;

case PCAP_SRC_FILE:
	{
#ifdef _WIN32
		WIN32_FIND_DATA filedata;
		HANDLE filehandle;
#else
		struct dirent *filedata;
		DIR *unixdir;
#endif

if (pcap_parsesrcstr(source, &type, NULL, NULL, name, errbuf) == -1)
			return -1;

/* Check that the filename is correct */
		stringlen = strlen(name);

/* The directory must end with '\' in Win32 and '/' in UNIX */
#ifdef _WIN32
#define ENDING_CHAR '\\'
#else
#define ENDING_CHAR '/'
#endif

if (name[stringlen - 1] != ENDING_CHAR)
		{
			name[stringlen] = ENDING_CHAR;
			name[stringlen + 1] = 0;

stringlen++;
		}

/* Save the path for future reference */
		pcap_snprintf(path, sizeof(path), "%s", name);
		pathlen = strlen(path);

#ifdef _WIN32
		/* To perform directory listing, Win32 must have an 'asterisk' as ending char */
		if (name[stringlen - 1] != '*')
		{
			name[stringlen] = '*';
			name[stringlen + 1] = 0;
		}

filehandle = FindFirstFile(name, &filedata);

if (filehandle == INVALID_HANDLE_VALUE)
		{
			pcap_snprintf(errbuf, PCAP_ERRBUF_SIZE, "Error when listing files: does folder '%s' exist?", path);
			return -1;
		}

#else
		/* opening the folder */
		unixdir= opendir(path);

/* get the first file into it */
		filedata= readdir(unixdir);

if (filedata == NULL)
		{
			pcap_snprintf(errbuf, PCAP_ERRBUF_SIZE, "Error when listing files: does folder '%s' exist?", path);
			return -1;
		}
#endif

/* Add all files we find to the list. */
		do
		{
#ifdef _WIN32
			/* Skip the file if the pathname won't fit in the buffer */
			if (pathlen + strlen(filedata.cFileName) >= sizeof(filename))
				continue;
			pcap_snprintf(filename, sizeof(filename), "%s%s", path, filedata.cFileName);
#else
			if (pathlen + strlen(filedata->d_name) >= sizeof(filename))
				continue;
			pcap_snprintf(filename, sizeof(filename), "%s%s", path, filedata->d_name);
#endif

fp = pcap_open_offline(filename, errbuf);

if (fp)
			{
				/* allocate the main structure */
				dev = (pcap_if_t *)malloc(sizeof(pcap_if_t));
				if (dev == NULL)
				{
					pcap_fmt_errmsg_for_errno(errbuf,
					    PCAP_ERRBUF_SIZE, errno,
					    "malloc() failed");
					pcap_freealldevs(*alldevs);
					return -1;
				}

/* Initialize the structure to 'zero' */
				memset(dev, 0, sizeof(pcap_if_t));

/* Append it to the list. */
				if (lastdev == NULL)
				{
					/*
					 * List is empty, so it's also
					 * the first device.
					 */
					*alldevs = dev;
				}
				else
				{
					/*
					 * Append after the last device.
					 */
					lastdev->next = dev;
				}
				/* It's now the last device. */
				lastdev = dev;

/* Create the new source identifier */
				if (pcap_createsrcstr(tmpstring, PCAP_SRC_FILE, NULL, NULL, filename, errbuf) == -1)
				{
					pcap_freealldevs(*alldevs);
					return -1;
				}

dev->name = strdup(tmpstring);
				if (dev->name == NULL)
				{
					pcap_fmt_errmsg_for_errno(errbuf,
					    PCAP_ERRBUF_SIZE, errno,
					    "malloc() failed");
					pcap_freealldevs(*alldevs);
					return -1;
				}

/*
				 * Create the description.
				 */
				if (pcap_asprintf(&dev->description,
				    "%s '%s' %s", PCAP_TEXT_SOURCE_FILE,
				    filename, PCAP_TEXT_SOURCE_ON_LOCAL_HOST) == -1)
				{
					pcap_fmt_errmsg_for_errno(errbuf,
					    PCAP_ERRBUF_SIZE, errno,
					    "malloc() failed");
					pcap_freealldevs(*alldevs);
					return -1;
				}

pcap_close(fp);
			}
		}
#ifdef _WIN32
		while (FindNextFile(filehandle, &filedata) != 0);
#else
		while ( (filedata= readdir(unixdir)) != NULL);
#endif

#ifdef _WIN32
		/* Close the search handle. */
		FindClose(filehandle);
#endif

return 0;
	}

case PCAP_SRC_IFREMOTE:
		return pcap_findalldevs_ex_remote(source, auth, alldevs, errbuf);

default:
		pcap_strlcpy(errbuf, "Source type not supported", PCAP_ERRBUF_SIZE);
		return -1;
	}
}

pcap_t *pcap_open(const char *source, int snaplen, int flags, int read_timeout, struct pcap_rmtauth *auth, char *errbuf)
{
	char name[PCAP_BUF_SIZE];
	int type;
	pcap_t *fp;
	int status;

/*
	 * A null device name is equivalent to the "any" device -
	 * which might not be supported on this platform, but
	 * this means that you'll get a "not supported" error
	 * rather than, say, a crash when we try to dereference
	 * the null pointer.
	 */
	if (source == NULL)
		source = "any";

if (strlen(source) > PCAP_BUF_SIZE)
	{
		pcap_snprintf(errbuf, PCAP_ERRBUF_SIZE, "The source string is too long. Cannot handle it correctly.");
		return NULL;
	}

/*
	 * Determine the type of the source (file, local, remote) and,
	 * if it's file or local, the name of the file or capture device.
	 */
	if (pcap_parsesrcstr(source, &type, NULL, NULL, name, errbuf) == -1)
		return NULL;

switch (type)
	{
	case PCAP_SRC_FILE:
		return pcap_open_offline(name, errbuf);

case PCAP_SRC_IFLOCAL:
		fp = pcap_create(name, errbuf);
		break;

case PCAP_SRC_IFREMOTE:
		/*
		 * Although we already have host, port and iface, we prefer
		 * to pass only 'source' to pcap_open_rpcap(), so that it
		 * has to call pcap_parsesrcstr() again.
		 * This is less optimized, but much clearer.
		 */
		return pcap_open_rpcap(source, snaplen, flags, read_timeout, auth, errbuf);

default:
		pcap_strlcpy(errbuf, "Source type not supported", PCAP_ERRBUF_SIZE);
		return NULL;
	}

if (fp == NULL)
		return (NULL);
	status = pcap_set_snaplen(fp, snaplen);
	if (status < 0)
		goto fail;
	if (flags & PCAP_OPENFLAG_PROMISCUOUS)
	{
		status = pcap_set_promisc(fp, 1);
		if (status < 0)
			goto fail;
	}
	if (flags & PCAP_OPENFLAG_MAX_RESPONSIVENESS)
	{
		status = pcap_set_immediate_mode(fp, 1);
		if (status < 0)
			goto fail;
	}
#ifdef _WIN32
	/*
	 * This flag is supported on Windows only.
	 * XXX - is there a way to support it with
	 * the capture mechanisms on UN*X?  It's not
	 * exactly a "set direction" operation; I
	 * think it means "do not capture packets
	 * injected with pcap_sendpacket() or
	 * pcap_inject()".
	 */
	/* disable loopback capture if requested */
	if (flags & PCAP_OPENFLAG_NOCAPTURE_LOCAL)
		fp->opt.nocapture_local = 1;
#endif /* _WIN32 */
	status = pcap_set_timeout(fp, read_timeout);
	if (status < 0)
		goto fail;
	status = pcap_activate(fp);
	if (status < 0)
		goto fail;
	return fp;

fail:
	if (status == PCAP_ERROR)
		pcap_snprintf(errbuf, PCAP_ERRBUF_SIZE, "%s: %s",
		    name, fp->errbuf);
	else if (status == PCAP_ERROR_NO_SUCH_DEVICE ||
	    status == PCAP_ERROR_PERM_DENIED ||
	    status == PCAP_ERROR_PROMISC_PERM_DENIED)
		pcap_snprintf(errbuf, PCAP_ERRBUF_SIZE, "%s: %s (%s)",
		    name, pcap_statustostr(status), fp->errbuf);
	else
		pcap_snprintf(errbuf, PCAP_ERRBUF_SIZE, "%s: %s",
		    name, pcap_statustostr(status));
	pcap_close(fp);
	return NULL;
}

struct pcap_samp *pcap_setsampling(pcap_t *p)
{
	return &p->rmt_samp;
}

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