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Modify the comments to show how much of a mess the different DLT_ values 

on different flavors of BSD are - even worse than I thought, now that
I've seen the BSD/OS <net/bpf.h>.

svn path=/trunk/; revision=552
This commit is contained in:
Guy Harris 1999-08-22 19:08:40 +00:00
parent 7348611bcb
commit 73df88f11e
1 changed files with 18 additions and 9 deletions
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27
wiretap/libpcap.c
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@ -1,6 +1,6 @@
/* libpcap.c
*
* $Id: libpcap.c,v 1.13 1999/08/22 03:50:31 guy Exp $
* $Id: libpcap.c,v 1.14 1999/08/22 19:08:40 guy Exp $
*
* Wiretap Library
* Copyright (c) 1998 by Gilbert Ramirez <gram@verdict.uthscsa.edu>
@ -76,8 +76,9 @@ static int libpcap_dump(wtap_dumper *wdh, const struct wtap_pkthdr *phdr,
static int libpcap_dump_close(wtap_dumper *wdh, int *err);
/*
* XXX - this is a bit of a mess. OpenBSD, and perhaps NetBSD, have
* different DLT_ codes from FreeBSD (and from the LBL BPF code).
* XXX - this is a bit of a mess. OpenBSD, and perhaps NetBSD, and
* BSD/OS have different DLT_ codes from FreeBSD (and from the LBL
* BPF code), and, at least in some cases, from each other.
* For now, we simply treat those type values with different
* meanings on different platforms, except for DLT_RAW, as "unknown";
* this means you won't be able to capture from a network using those
@ -108,12 +109,20 @@ static const int pcap_encap[] = {
WTAP_ENCAP_SLIP,
WTAP_ENCAP_PPP,
WTAP_ENCAP_FDDI,
WTAP_ENCAP_ATM_RFC1483,
WTAP_ENCAP_RAW_IP, /* or, on OpenBSD, DLT_LOOP */
WTAP_ENCAP_UNKNOWN, /* BSD/OS SLIP *and* OpenBSD DLT_ENC */
WTAP_ENCAP_UNKNOWN, /* BSD/OS PPP *and* OpenBSD DLT_RAW */
WTAP_ENCAP_UNKNOWN, /* OpenBSD BSD/OS SLIP */
WTAP_ENCAP_UNKNOWN, /* OpenBSD BSD/OS PPP */
WTAP_ENCAP_ATM_RFC1483, /* or, on BSD/OS, Frame Relay */
WTAP_ENCAP_RAW_IP, /* or, on OpenBSD, DLT_LOOP, and on BSD/OS,
Cisco HDLC */
WTAP_ENCAP_UNKNOWN, /* In LBL BPF and FreeBSD, BSD/OS SLIP;
on OpenBSD, DLT_ENC; on BSD/OS,
DLT_ATM_RFC1483 */
WTAP_ENCAP_UNKNOWN, /* In LBL BPF and FreeBSD, BSD/OS PPP;
on OpenBSD and BSD/OS, DLT_RAW */
WTAP_ENCAP_UNKNOWN, /* In OpenBSD and BSD/OS, BSD/OS SLIP,
but the BSD/OS header says "internal
to libpcap", whatever that means */
WTAP_ENCAP_UNKNOWN, /* In OpenBSD and BSD/OS, BSD/OS PPP,
but the BSD/OS header says "internal
to libpcap", whatever that means */
WTAP_ENCAP_UNKNOWN,
WTAP_ENCAP_UNKNOWN,
WTAP_ENCAP_LINUX_ATM_CLIP