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/*
* Copyright (c) 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 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.
*
* This sample was contributed by
* Marcin Okraszewski (Marcin.OkraszewskiATpl.compuware.com)
*
*/
#include <tchar.h>
#include <pcap.h>
#include <stdio.h>
/** Prints packet timestaps regardless of format*/
int _tmain(int argc, _TCHAR* argv[])
{
char errbuf[PCAP_ERRBUF_SIZE];
wchar_t cmd[1024];
wchar_t tshark_path[MAX_PATH];
wchar_t file_path[MAX_PATH];
if ( argc != 3 ) {
wprintf(L"Prints packet timestaps regardless of format.\n");
wprintf(L"Usage:\n\t%ls <tshark path> <trace file>\n", argv[0]);
return 1;
}
// conversion to short path name in case there are spaces
if ( ! GetShortPathNameW(argv[1], tshark_path, MAX_PATH) ||
! GetShortPathNameW(argv[2], file_path, MAX_PATH) )
{
printf("Failed to convert paths to short form.");
return 1;
}
// create tshark command, which will make the trace conversion and print in libpcap format to stdout
if ( swprintf_s(cmd, 1024, L"%ls -r %ls -w - -F libpcap", tshark_path, file_path) < 0 ) {
wprintf(L"Failed to create command\n");
return 1;
}
// start tshark
FILE *tshark_out = _wpopen(cmd, L"rb");
if ( tshark_out == NULL ) {
strerror_s(errbuf, PCAP_ERRBUF_SIZE, errno);
printf("Failed run tshark: %s\n", errbuf);
wprintf(L"Command: %ls", cmd);
return 1;
}
// open stdout from tshark
pcap_t *pcap = pcap_fopen_offline(tshark_out, errbuf);
if ( pcap == NULL ) {
printf("Error opening stream from tshark: %s\n", errbuf);
return 1;
}
// print information about every packet int trace
struct pcap_pkthdr hdr;
while ( pcap_next(pcap, &hdr) ) {
printf("packet: ts: %u.%06u, len: %4u, caplen: %4u\n", hdr.ts.tv_sec, hdr.ts.tv_usec, hdr.len, hdr.caplen);
}
// clean up
pcap_close(pcap);
_pclose(tshark_out);
return 0;
}
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