PCAP_DUMP_FTELL
Section: Misc. Reference Manual Pages (3PCAP)
Updated: 29 September 2017
Page Index
NAME
pcap_dump_ftell, pcap_dump_ftell64 - get the current file offset for a savefile being written
SYNOPSIS
#include <pcap/pcap.h>
long pcap_dump_ftell(pcap_dumper_t *p);
int64_t pcap_dump_ftell64(pcap_dumper_t *p);
DESCRIPTION
pcap_dump_ftell()
returns the current file position for the ``savefile'', representing the
number of bytes written by
pcap_dump_open()
and
pcap_dump().
-1 is returned on error.
If the current file position does not fit in a
long,
it will be truncated; this can happen on 32-bit UNIX-like systems with
large file support and on Windows.
pcap_dump_ftell64()
returns the current file position in a
int64_t,
so if file offsets that don't fit in a
long
but that fit in a
int64_t
are supported, this will return the file offset without truncation.
-1 is returned on error.
SEE ALSO
pcap(3PCAP),
pcap_dump_open(3PCAP),
pcap_dump(3PCAP)