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(3PCAP) and pcap_dump(3PCAP).  PCAP_ERROR 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.  PCAP_ERROR is returned on error.

BACKWARD COMPATIBILITY

       The function pcap_dump_ftell64() became available in libpcap release 1.9.0.  In previous releases,  there
       was no mechanism to obtain a file offset that is too large to fit in a long.

SEE ALSO

       pcap(3PCAP)

                                                  25 July 2018                            PCAP_DUMP_FTELL(3PCAP)