tcpdump/pcap_dump_ftell.c
guy e549a22820 Use pcap_dump_ftell() rather than casting a pcap_dumper_t * to a FILE *
and using ftell(); that won't necessarily work on Windows (if libpcap
was built with a different version of the C runtime library than tcpdump
is), and, even on UN*X, would break if a pcap_dumper_t * were ever made
something other than a FILE *.

Provide a pcap_dump_ftell() implementation that does that cheating cast
for use if libpcap doesn't have it (a pcap_dumper_t * is just a FILE *
on those older versions of libpcap).
2005-06-03 22:08:51 +00:00

37 lines
1.4 KiB
C

/*
* Copyright (c) 1993, 1994, 1995, 1996, 1997
* 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: (1) source code distributions
* retain the above copyright notice and this paragraph in its entirety, (2)
* distributions including binary code include the above copyright notice and
* this paragraph in its entirety in the documentation or other materials
* provided with the distribution, and (3) all advertising materials mentioning
* features or use of this software display the following acknowledgement:
* ``This product includes software developed by the University of California,
* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
* the University 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static const char rcsid[] _U_ =
"@(#) $Header: /tcpdump/master/tcpdump/pcap_dump_ftell.c,v 1.1 2005-06-03 22:08:52 guy Exp $ (LBL)";
#endif
#include <stdio.h>
#include <pcap.h>
#include "pcap-missing.h"
long
pcap_dump_ftell(pcap_dumper_t *p)
{
return (ftell((FILE *)p));
}