Allow offline packet sources to register FDs.

This commit is contained in:
Jan Grashoefer 2023-03-03 19:40:38 +01:00 committed by Arne Welzel
parent 39c3bb797c
commit 26d3a81c09
2 changed files with 9 additions and 14 deletions

View file

@ -182,10 +182,11 @@ void PcapSource::OpenOffline()
return;
}
props.selectable_fd = fileno(pcap_file(pd));
if ( props.selectable_fd < 0 )
InternalError("OS does not support selectable pcap fd");
// We don't register the file descriptor if we're in offline mode,
// because libpcap's file descriptor for trace files isn't a reliable
// way to know whether we actually have data to read.
// See https://github.com/the-tcpdump-group/libpcap/issues/870
props.selectable_fd = -1;
props.link_type = pcap_datalink(pd);
props.is_live = false;