sure that all values from 100 to the current maximum value are in use;
put in comments to indicate for what purpose the reserved ones are
reserved.
Note in the "don't just grab a value and use it yourself" comment why
you shouldn't use values below 100 or above the maximum value you see in
the file.
DLT_IEEE802_11_RADIO_AVS for future use with the AVS radio header.
Fix a comment.
Put in reserved LINKTYPE_USERn values corresponding to the reserved
DLT_USERn values.
caplen and len fields in the pre-2.3 order).
Move the version number checking to the open-file code; store a
tri-state (definitely swapped, definitely not swapped, maybe swapped)
value in the savefile information and use that when processing packets.
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.
which supplies different headers from BSD ARCNET, and fixes to the
ARCNET code generator (the protocol ID field is 1 byte, so the values
for it shouldn't be byte-swapped).
Whitespace cleanups.
The "NetBSD-style" ARCNET headers are used in other BSDs as well, so
just call them "BSD-style".
supplied by Linux's ARCNET code aren't the same as the ones supplied by
NetBSD's ARCNET code.
Fix up some LINKTYPE_ values to match the corresponding DLT_ values.
(There is no released version of libpcap/tcpdump that supports their
previous values.)
unfortunately, we can't fix "pcap_dump()" and "pcap_dump_close()" to do
that, as any application that tests the return value would fail to work
correctly if linked at runtime with an older libpcap, but we should
perhaps introduce "pcap_dump_ex()" and "pcap_dump_close_ex()" routines
that do return a success-vs-vailure indication.
capture device having only an RFC 2625 Network_Header field, not a Fibre
Channel frame header; rename the constants to emphasize this and to
leave room for another "raw Fibre Channel" link-layer type, if it's ever
needed.
risso