- don't auto-detect HDLC DLT on serial links, use
"pcap_set_datalink()" to choose the link-layer header
- for ATM, allow selecting SUNATM rather than the default
RFC1483 with "pcap_set_datalink()"
- reformat and otherwise clean up the code.
devices, offer DLT_DOCSIS as one of the choices of link-layer type, and
support setting that type as meaning just "set libpcap's notion of the
link-layer type to DLT_DOCSIS" without telling the driver to use
DLT_DOCSIS.
Added support for nonblocking operation.
Added support for processing more than a single packet in
pcap_dispatch().
Fixed bug in loss counter code.
Improved portability of loss counter code (e.g. use UINT_MAX
instead of 0xffff).
Removed unused local variables.
Added required headers (ctype.h, limits.h, unistd.h,
netinet/in.h).
Changed semantics to match those of standard pcap on linux.
- packets rejected by the filter are not counted.
Fix the pcap-dag atexit() handler for non-execing child
processes. Previously a fork()/exit() would stop the packet
capture (doh!).
Add a couple of optimizations.
assume Cisco HDLC, look at the first frame to see whether it has a
PPP-in-HDLC-like-frameing header, and use DLT_PPP_SERIAL for that and
DLT_CHDLC otherwise.
reading packets from a pcap_t, and make "pcap_read()" call it. That
removes the last place where we have to check for a pcap_t that refers
to a DAG card rather than a live capture, so get rid of the "is_dag" flag.
handles setting a filter for a pcap_t. Have "pcap_setfilter()" call it,
rather than being a per-platform function. The per-platform functions
don't need to check for an offline capture any more, as they're not
called for an offline capture (and the ones that just call
"install_bpf_program()" don't need to exist at all).
getting statistics for a pcap_t. Have "pcap_stats()" call it, rather
than being a per-platform function; have stats routines for non-live
pcap_t's that return an error.
the platform-dependent part of closing a pcap_t (and the
live-vs-savefile part as well, so that function must close the file
descriptor and free up any buffers allocated).
In the Digital UNIX support, add in a check for a memory allocation
failure.
guy