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/*
* Copyright (c) 2007
* Shrew Soft Inc. 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. Redistributions in any form must be accompanied by information on
* how to obtain complete source code for the software and any
* accompanying software that uses the software. The source code
* must either be included in the distribution or be available for no
* more than the cost of distribution plus a nominal fee, and must be
* freely redistributable under reasonable conditions. For an
* executable file, complete source code means the source code for all
* modules it contains. It does not include source code for modules or
* files that typically accompany the major components of the operating
* system on which the executable file runs.
*
* THIS SOFTWARE IS PROVIDED BY SHREW SOFT INC ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
* NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL SHREW SOFT INC
* 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.
*
* AUTHOR : Matthew Grooms
* mgrooms@shrew.net
*
*/
#include "libip.h"
_PCAP_DUMP::_PCAP_DUMP()
{
fp = NULL;
}
_PCAP_DUMP::~_PCAP_DUMP()
{
close();
}
bool _PCAP_DUMP::open( char * path )
{
if( path == NULL )
return false;
close();
//
// create file
//
#ifdef WIN32
if( fopen_s( &fp, path, "w+b" ) )
return false;
#else
fp = fopen( path, "w+b" );
if( fp == NULL )
return false;
#endif
//
// write pcap file header
//
pcap_file_header pfh;
pfh.magic = TCPDUMP_MAGIC;
pfh.version_major = PCAP_VERSION_MAJOR;
pfh.version_minor = PCAP_VERSION_MINOR;
pfh.thiszone = 0;
pfh.sigfigs = 0;
pfh.snaplen = 1514;
pfh.linktype = 1;
fwrite( &pfh, sizeof( pfh ), 1, fp );
return true;
}
void _PCAP_DUMP::close()
{
if( fp != NULL )
{
// fflush( fp );
// fclose( fp );
fp = NULL;
}
}
bool _PCAP_DUMP::dump( unsigned char * buff, size_t size )
{
if( fp == NULL )
return false;
pcap_pkthdr pph;
pph.ts_sec = 0;
pph.ts_usec = 0;
pph.caplen = ( uint32_t ) size;
pph.len = ( uint32_t ) size;
fwrite( &pph, sizeof( pph ), 1, fp );
fwrite( buff, size, 1, fp );
return true;
}
bool _PCAP_DUMP::dump( ETH_HEADER & header, PACKET_IP & packet )
{
if( fp == NULL )
return false;
pcap_pkthdr pph;
pph.ts_sec = 0;
pph.ts_usec = 0;
pph.caplen = ( uint32_t ) packet.size() + sizeof( ETH_HEADER );
pph.len = ( uint32_t ) packet.size() + sizeof( ETH_HEADER );
fwrite( &pph, sizeof( pph ), 1, fp );
fwrite( &header, sizeof( header ), 1, fp );
fwrite( packet.buff(), packet.size(), 1, fp );
return true;
}
bool _PCAP_DUMP::flush()
{
if( fp == NULL )
return false;
fflush( fp );
return true;
}
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