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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 (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. 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 . pcap (3PCAP)