PCAP_DUMP_FTELL(3PCAP)                                PCAP_DUMP_FTELL(3PCAP)

NAME         top

       pcap_dump_ftell,  pcap_dump_ftell64 - get the current file offset for
       a savefile being written

SYNOPSIS         top

       #include <pcap/pcap.h>

       long pcap_dump_ftell(pcap_dumper_t *p);
       int64_t pcap_dump_ftell64(pcap_dumper_t *p);

DESCRIPTION         top

       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         top

       pcap(3PCAP), pcap_dump_open(3PCAP), pcap_dump(3PCAP)

COLOPHON         top

       This page is part of the libpcap (packet capture library) project.
       Information about the project can be found at 
       ⟨⟩.  If you have a bug report for this manual
       page, see ⟨⟩.  This page was obtained
       from the project's upstream Git repository
       ⟨⟩ on 2018-04-30.
       (At that time, the date of the most recent commit that was found in
       the repository was 2018-04-30.)  If you discover any rendering prob‐
       lems in this HTML version of the page, or you believe there is a bet‐
       ter or more up-to-date source for the page, or you have corrections
       or improvements to the information in this COLOPHON (which is not
       part of the original manual page), send a mail to

                               3 January 2014         PCAP_DUMP_FTELL(3PCAP)