Man page of PCAP_DUMP_FTELL

Section: Misc. Reference Manual Pages (3PCAP)
Updated: 29 September 2017
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This man page documents libpcap version 1.9.0 (see also: git master branch, 1.10.1, 1.10.0, 1.9.1, 1.8.1, 1.7.4, 1.6.2, 1.5.3).

Your system may have a different version installed, possibly with some local modifications. To achieve the best results, please make sure this version of this man page suits your needs. If necessary, try to look for a different version on this web site or in the man pages available in your installation.

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)


COLOPHON

This HTML man page was generated at 12:21:39 GMT, October 07, 2021 from a source man page in "The Tcpdump Group" git repositories using man2html and other tools.