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)