pcap_dump_ftell, pcap_dump_ftell64 - get the current file offset for a savefile
being written
#include <pcap/pcap.h>
long pcap_dump_ftell(pcap_dumper_t *p);
int64_t pcap_dump_ftell64(pcap_dumper_t *p);
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.
pcap(3), pcap_dump_open(3), pcap_dump(3)