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mcr 24 years ago
commit b11ddf8a9b
  1. 267
      CHANGES
  2. 50
      FILES
  3. 328
      INSTALL
  4. 163
      Makefile.in
  5. 49
      README
  6. BIN
      SUNOS4/nit_if.o.sparc
  7. BIN
      SUNOS4/nit_if.o.sun3
  8. BIN
      SUNOS4/nit_if.o.sun4c.4.0.3c
  9. 1
      VERSION
  10. 706
      aclocal.m4
  11. 264
      bpf/net/bpf.h
  12. 532
      bpf/net/bpf_filter.c
  13. 65
      bpf_dump.c
  14. 288
      bpf_image.c
  15. 693
      config.guess
  16. 927
      config.sub
  17. 2137
      configure
  18. 189
      configure.in
  19. 159
      etherent.c
  20. 76
      ethertype.h
  21. 1944
      gencode.c
  22. 179
      gencode.h
  23. 281
      grammar.y
  24. 219
      inet.c
  25. 250
      install-sh
  26. 43
      lbl/gnuc.h
  27. 54
      lbl/os-solaris2.h
  28. 215
      lbl/os-sunos4.h
  29. 39
      lbl/os-ultrix4.h
  30. 88
      linux-include/netinet/if_ether.h
  31. 178
      linux-include/netinet/ip_var.h
  32. 109
      mkdep
  33. 372
      nametoaddr.c
  34. 2004
      optimize.c
  35. 263
      pcap-bpf.c
  36. 848
      pcap-dlpi.c
  37. 227
      pcap-enet.c
  38. 117
      pcap-int.h
  39. 331
      pcap-linux.c
  40. 76
      pcap-namedb.h
  41. 244
      pcap-nit.c
  42. 19
      pcap-nit.h
  43. 73
      pcap-null.c
  44. 351
      pcap-pf.c
  45. 19
      pcap-pf.h
  46. 300
      pcap-snit.c
  47. 216
      pcap-snoop.c
  48. 340
      pcap.3
  49. 206
      pcap.c
  50. 137
      pcap.h
  51. 50
      ppp.h
  52. 352
      savefile.c
  53. 203
      scanner.l

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@(#) $Header: /tcpdump/master/libpcap/CHANGES,v 1.47 1999-10-07 23:46:40 mcr Exp $ (LBL)
v0.4 Sat Jul 25 12:40:09 PDT 1998
- Fix endian problem with DLT_NULL devices. From FreeBSD via Bill
Fenner (fenner@parc.xerox.com)
- Fix alignment problem with FDDI under DLPI. This was causing core
dumps under Solaris.
- Added configure options to disable flex and bison. Resulted from a
bug report by barnett@grymoire.crd.ge.com (Bruce Barnett). Also added
options to disable gcc and to force a particular packet capture type.
- Added support for Fore ATM interfaces (qaa and fa) under IRIX. Thanks
to John Hawkinson (jhawk@mit.edu)
- Change Linux PPP and SLIP to use DLT_RAW since the kernel does not
supply any "link layer" data.
- Change Linux to use SIOCGIFHWADDR ioctl to determine link layer type.
Thanks to Thomas Sailer (sailer@ife.ee.ethz.ch)
- Change IRIX PPP to use DLT_RAW since the kernel does not supply any
"link layer" data.
- Modified to support the new BSD/OS 2.1 PPP and SLIP link layer header
formats.
- Added some new SGI snoop interface types. Thanks to Steve Alexander
(sca@refugee.engr.sgi.com)
- Fixes for HP-UX 10.20 (which is similar to HP-UX 9). Thanks to
Richard Allen (ra@hp.is) and Steinar Haug (sthaug@nethelp.no)
- Fddi supports broadcast as reported by Jeff Macdonald
(jeff@iacnet.com). Also correct ieee802 and arcnet.
- Determine Linux pcap buffer size at run time or else it might not be
big enough for some interface types (e.g. FDDI). Thanks to Jes
Sorensen (Jes.Sorensen@cern.ch)
- Fix some linux alignment problems.
- Document promisc argument to pcap_open_live(). Reported by Ian Marsh
(ianm@sics.se)
- Support Metricom radio packets under Linux. Thanks to Kevin Lai
(laik@gunpowder.stanford.edu)
- Bind to interface name under Linux to avoid packets from multiple
interfaces on multi-homed hosts. Thanks to Kevin Lai
(laik@gunpowder.stanford.edu)
- Change L_SET to SEEK_SET for HP-UX. Thanks to Roland Roberts
(rroberts@muller.com)
- Fixed an uninitialized memory reference found by Kent Vander Velden
(graphix@iastate.edu)
- Fixed lex pattern for IDs to allow leading digits. As reported by
Theo de Raadt (deraadt@cvs.openbsd.org)
- Fixed Linux include file problems when using GNU libc.
- Ifdef ARPHRD_FDDI since not all versions of the Linux kernel have it.
Reported reported by Eric Jacksch (jacksch@tenebris.ca)
- Fixed bug in pcap_dispatch() that kept it from returning on packet
timeouts.
- Changed ISLOOPBACK() macro when IFF_LOOPBACK isn't available to check
for "lo" followed by an eos or digit (newer versions of Linux
apparently call the loopback "lo" instead of "lo0").
- Fixed Linux networking include files to use ints instead of longs to
avoid problems with 64 bit longs on the alpha. Thanks to Cristian
Gafton (gafton@redhat.com)
v0.3 Sat Nov 30 20:56:27 PST 1996
- Added Linux support.
- Fixed savefile bugs.
- Solaris x86 fix from Tim Rylance (t.rylance@elsevier.nl)
- Add support for bpf kernel port filters.
- Remove duplicate atalk protocol table entry. Thanks to Christian
Hopps (chopps@water.emich.edu)
- Fixed pcap_lookupdev() to ignore nonexistent devices. This was
reported to happen under BSD/OS by David Vincenzetti
(vince@cryptonet.it)
- Avoid solaris compiler warnings. Thanks to Bruce Barnett
(barnett@grymoire.crd.ge.com)
v0.2.1 Sun Jul 14 03:02:26 PDT 1996
- Fixes for HP-UX 10. Thanks in part to to Thomas Wolfram
(wolf@prz.tu-berlin.de) and Rick Jones (raj@hpisrdq.cup.hp.com)
- Added support for SINIX. Thanks to Andrej Borsenkow
(borsenkow.msk@sni.de)
- Fixes for AIX (although this system is not yet supported). Thanks to
John Hawkinson (jhawk@mit.edu)
- Use autoconf's idea of the top level directory in install targets.
Thanks to John Hawkinson.
- Add missing autoconf packet capture result message. Thanks to Bill
Fenner (fenner@parc.xerox.com)
- Fixed padding problems in the pf module.
- Fixed some more alignment problems on the alpha.
- Added explicit netmask support. Thanks to Steve Nuchia
(steve@research.oknet.com)
- Fixed to handle raw ip addresses such as 0.0.0.1 without "left
justifing"
- Add "sca" keyword (for DEC cluster services) as suggested by Terry
Kennedy (terry@spcvxa.spc.edu)
- Add "atalk" keyword as suggested by John Hawkinson.
- Add "igrp" keyword.
- Fixed HID definition in grammar.y to be a string, not a value.
- Use $CC when checking gcc version. Thanks to Carl Lindberg
(carl_lindberg@blacksmith.com)
- Removed obsolete reference to pcap_immediate() from the man page.
Michael Stolarchuk (mts@terminator.rs.itd.umich.edu)
- DLT_NULL has a 4 byte family header. Thanks to Jeffrey Honig
(jch@bsdi.com)
v0.2 Sun Jun 23 02:28:42 PDT 1996
- Add support for HP-UX. Resulted from code contributed by Tom Murray
(tmurray@hpindck.cup.hp.com) and Philippe-Andri Prindeville
(philipp@res.enst.fr)
- Update INSTALL with a reminder to install include files. Thanks to
Mark Andrews (mandrews@aw.sgi.com)
- Fix bpf compiler alignment bug on the alpha.
- Use autoconf to detect architectures that can't handle misaligned
accesses.
- Added loopback support for snoop. Resulted from report Steve
Alexander (sca@engr.sgi.com)
v0.1 Fri Apr 28 18:11:03 PDT 1995
- Fixed compiler and optimizer bugs. The BPF filter engine uses unsigned
comparison operators, while the code generator and optimizer assumed
signed semantics in several places. Thanks to Charlie Slater
(cslater@imatek.com) for pointing this out.
- Removed FDDI ifdef's, they aren't really needed. Resulted from report
by Gary Veum (veum@boa.gsfc.nasa.gov).
- Add pcap-null.c which allows offline use of libpcap on systems that
don't support live package capture. This feature resulting from a
request from Jan van Oorschot (j.p.m.voorschot@et.tudelft.nl).
- Make bpf_compile() reentrant. Fix thanks to Pascal Hennequin
(Pascal.Hennequin@hugo.int-evry.fr).
- Port to GNU autoconf.
- Fix pcap-dlpi.c to work with isdn. Resulted from report by Flemming
Johansen (fsj@csd.cri.dk).
- Handle multi-digit interface unit numbers (aka ppa's) under dlpi.
Resulted from report by Daniel Ehrlich (ehrlich@cse.psu.edu).
- Fix pcap-dlpi.c to work in non-promiscuous mode. Resulted from report
by Jeff Murphy (jcmurphy@acsu.buffalo.edu).
- Add support for "long jumps". Thanks to Jeffrey Mogul
(mogul@pa.dec.com).
- Fix minor problems when compiling with BDEBUG as noticed by Scott
Bertilson (scott@unet.umn.edu).
- Declare sys_errlist "const char *const" to avoid problems under
FreeBSD. Resulted from report by jher@eden.com.
v0.0.6 Fri Apr 28 04:07:13 PDT 1995
- Add missing variable declaration missing from 0.0.6
v0.0.5 Fri Apr 28 00:22:21 PDT 1995
- Workaround for problems when pcap_read() returns 0 due to the timeout
expiring.
v0.0.4 Thu Apr 20 20:41:48 PDT 1995
- Change configuration to not use gcc v2 flags with gcc v1.
- Fixed a bug in pcap_next(); if pcap_dispatch() returns 0, pcap_next()
should also return 0. Thanks to Richard Stevens (rstevens@noao.edu).
- Fixed configure to test for snoop before dlpi to avoid problems under
IRIX 5. Thanks to J. Eric Townsend (jet@abulafia.genmagic.com).
- Hack around deficiency in Ultrix's make.
- Fix two bugs related to the Solaris pre-5.3.2 bufmod bug; handle
savefiles that have more than snapshot bytes of data in them (so we
can read old savefiles) and avoid writing such files.
- Added checkioctl which is used with gcc to check that the
"fixincludes" script has been run.
v0.0.3 Tue Oct 18 18:13:46 PDT 1994
- Fixed configure to test for snoop before dlpi to avoid problems under
IRIX 5. Thanks to J. Eric Townsend (jet@abulafia.genmagic.com).
v0.0.2 Wed Oct 12 20:56:37 PDT 1994
- Implement timeout in the dlpi pcap_open_live(). Thanks to Richard
Stevens.
- Determine pcap link type from dlpi media type. Resulted from report
by Mahesh Jethanandani (mahesh@npix.com).
v0.0.1 Fri Jun 24 14:50:57 PDT 1994
- Fixed bug in nit_setflags() in pcap-snit.c. The streams ioctl timeout
wasn't being initialized sometimes resulting in an "NIOCSFLAGS:
Invalid argument" error under OSF/1. Reported by Matt Day
(mday@artisoft.com) and Danny Mitzel (dmitzel@whitney.hitc.com).
- Turn on FDDI support by default.
v0.0 Mon Jun 20 19:20:16 PDT 1994
- Initial release.
- Fixed bug with greater/less keywords, reported by Mark Andrews
(mandrews@alias.com).
- Fix bug where '|' was defined as BPF_AND instead of BPF_OR, reported
by Elan Amir (elan@leeb.cs.berkeley.edu).
- Machines with little-endian byte ordering are supported thanks to
Jeff Mogul.
- Add hack for version 2.3 savefiles which don't have caplen and len
swapped thanks to Vern Paxson.
- Added "&&" and "||" aliases for "and" and "or" thanks to Vern Paxson.
- Added length, inbound and outbound keywords.

50
FILES

@ -0,0 +1,50 @@
CHANGES
FILES
INSTALL
Makefile.in
README
SUNOS4
VERSION
aclocal.m4
bpf/net/bpf.h
bpf/net/bpf_filter.c
bpf_image.c
config.guess
config.sub
configure
configure.in
etherent.c
ethertype.h
gencode.c
gencode.h
grammar.y
inet.c
install-sh
lbl/gnuc.h
lbl/os-solaris2.h
lbl/os-sunos4.h
lbl/os-ultrix4.h
linux-include/netinet/if_ether.h
linux-include/netinet/ip_var.h
mkdep
nametoaddr.c
optimize.c
pcap-bpf.c
pcap-dlpi.c
pcap-enet.c
pcap-int.h
pcap-linux.c
pcap-namedb.h
pcap-nit.c
pcap-nit.h
pcap-null.c
pcap-pf.c
pcap-pf.h
pcap-snit.c
pcap-snoop.c
pcap.3
pcap.c
pcap.h
ppp.h
savefile.c
scanner.l

@ -0,0 +1,328 @@
@(#) $Header: /tcpdump/master/libpcap/Attic/INSTALL,v 1.42 1999-10-07 23:46:40 mcr Exp $ (LBL)
To build libpcap, first customize any paths in Makefile.in, then run
"./configure" (a shell script). The configure script will determine
your system attributes and generate an appropriate Makefile from
Makefile.in. Next run "make". If everything goes well you can su to
root and run "make install", "make install-incl" and "make
install-man". However, you need not install libpcap if you just want to
build tcpdump; just make sure the tcpdump and libpcap directory trees
have the same parent directory.
If configure says:
configure: warning: cannot determine packet capture interface
configure: warning: (see INSTALL for more info)
then your system either does not support packet capture or your system
does support packet capture but libpcap does not support that
particular type. (If you have HP-UX, see below.) If your system uses a
packet capture not supported by libpcap, please send us patches; don't
forget to include an autoconf fragment suitable for use in
configure.in.
It is possible to override the default packet capture type, although
the circumstance where this works are limited. For example if you have
installed bpf under SunOS 4 and wish to build a snit libpcap:
./configure --with-pcap=snit
Another example is to force a supported packet capture type in the case
where the configure scripts fails to detect it.
You will need an ANSI C compiler to build libpcap. The configure script
will abort if your compiler is not ANSI compliant. If this happens, use
the GNU C compiler, available via anonymous ftp:
ftp://prep.ai.mit.edu/pub/gnu/gcc-*.tar.gz
Note well: If you use gcc, you may need to run its "fixincludes"
script. Running fixincludes is not required with later versions of gcc
and in some cases (e.g. Solaris 2.5) causes problems when run. The
configure script will abort with:
checking for ANSI ioctl definitions... yes
configure: error: see the INSTALL for more info
if it detects if the fixincludes needs to be run. If the fixincludes
test in configure passes, you're probably ok.
If you use flex, you must use version 2.4.6 or higher. The configure
script automatically detects the version of flex and will not use it
unless it is new enough. You can use "flex -V" to see what version you
have (unless it's really old). The current version of flex is available
via anonymous ftp:
ftp://ftp.ee.lbl.gov/flex-*.tar.Z
As of this writing, the current version is 2.5.4.
If you use bison, you must use flex (and visa versa). The configure
script automatically falls back to lex and yacc if both flex and bison
are not found.
Sometimes the stock C compiler does not interact well with flex and
bison. The list of problems includes undefined references for alloca.
You can get around this by installing gcc or manually disabling flex
and bison with:
./configure --without-flex --without-bison
If your system only has AT&T lex, this is okay unless your libpcap
program uses other lex/yacc generated code. (Although it's possible to
map the yy* identifiers with a script, we use flex and bison so we
don't feel this is necessary.)
Some systems support the Berkeley Packet Filter natively; for example
out of the box OSF and BSD/OS have bpf. If your system does not support
bpf, you will need to pick up:
ftp://ftp.ee.lbl.gov/bpf-*.tar.Z
Note well: you MUST have kernel source for your operating system in
order to install bpf. An exception is SunOS 4; the bpf distribution
includes replacement kernel objects for some of the standard SunOS 4
network device drivers. See the bpf INSTALL document for more
information.
If you use Solaris, there is a bug with bufmod(7) that is fixed in
Solaris 2.3.2 (aka SunOS 5.3.2). Setting a snapshot length with the
broken bufmod(7) results in data be truncated from the FRONT of the
packet instead of the end. The work around is to not set a snapshot
length but this results in performance problems since the entire packet
is copied to user space. If you must run an older version of Solaris,
there is a patch available from Sun; ask for bugid 1149065. After
installing the patch, use "setenv BUFMOD_FIXED" to enable use of
bufmod(7). However, we recommend you run a more current release of
Solaris.
If you use the SPARCompiler, you must be careful to not use the
/usr/ucb/cc interface. If you do, you will get bogus warnings and
perhaps errors. Either make sure your path has /opt/SUNWspro/bin
before /usr/ucb or else:
setenv CC /opt/SUNWspro/bin/cc
before running configure. (You might have to do a "make distclean"
if you already ran configure once).
Also note that "make depend" won't work; while all of the known
universe uses -M, the SPARCompiler uses -xM to generate makefile
dependencies.
If you are trying to do packet capture with a FORE ATM card, you may or
may not be able to. They usually only release their driver in object
code so unless their driver supports packet capture, there's not much
libpcap can do.
If you get an error like:
tcpdump: recv_ack: bind error 0x???
when using DLPI, look for the DL_ERROR_ACK error return values, usually
in /usr/include/sys/dlpi.h, and find the corresponding value.
Under OSF, packet capture must be enabled before it can be used. For
instructions on how to enable packet filter support, see:
ftp://ftp.digital.com/pub/Digital/dec-faq/Digital-UNIX
Once you enable packet filter support, your OSF system will support bpf
natively.
Under Ultrix, packet capture must be enabled before it can be used. For
instructions on how to enable packet filter support, see:
ftp://ftp.digital.com/pub/Digital/dec-faq/ultrix
If you use HP-UX, you must have at least version 9 and either the
version of cc that supports ANSI C (cc -Aa) or else use the GNU C
compiler. You must also buy the optional streams package. If you don't
have:
/usr/include/sys/dlpi.h
/usr/include/sys/dlpi_ext.h
then you don't have the streams package. In addition, we believe you
need to install the "9.X LAN and DLPI drivers cumulative" patch
(PHNE_6855) to make the version 9 DLPI work with libpcap.
It's been reported that the DLPI streams package is standard starting
with HP-UX 10.
The HP implementation of DLPI is a little bit eccentric. Unlike
Solaris, you must attach /dev/dlpi instead of the specific /dev/*
network pseudo device entry in order to capture packets. The ppa is
based on the ifnet "index" number. Under HP-UX 9, it is necessary to
read /dev/kmem and the kernel symbol file (/hp-ux). Under HP-UX 10,
dlpi can provide information for determining the ppa. It does not seem
to be possible to trace the loopback interface. Unlike other DLPI
implementations, PHYS implies MULTI and SAP and you get an error if you
try to enable more than one promiscous more than one promiscuous mode
at a time. Finally, testing shows that there can't be more than one
simultaneous dlpi user per network interface and you cannot capture
outbound packets.
If you use Linux, this version of libpcap is known to compile and run
under Red Hat 4.0 with the 2.0.25 kernel. It may work with earlier 2.X
versions but is guaranteed not to work with 1.X kernels. Running more
than one libpcap program at a time can cause problems since promiscuous
mode is implemented by twiddlin the interface flags from the libpcap
application. Also, packet timestamps aren't very good. This appears to
be due to haphazard handling of the timestamp in the kernel.
Note well: there is rumoured to be a version of tcpdump floating around
called 3.0.3 that includes libpcap and is supposed to support Linux.
You should be advised that the Network Research Group at LBNL never
generated a release with this version number. We note with interest
that a standard cracker trick to get people to install trojans is to
distribute bogus packages that have a version number higher than the
current release. We also note with annoyance that 90% of the Linux
related bug reports we get are due to changes made to unofficial
versions of our page. If you are having trouble but aren't using a
version that came from ftp.ee.lbl.gov, please try that before
submitting a bug report!
If you use AIX, you may not be able to build libpcap from this release.
Although AIX 4 ships with tcpdump, it is an old version that predates
libpcap. We do not have an AIX system in house so it's impossible for
us to test AIX patches submitted to us. We are told that you must link
against /lib/pse.exp, that you must use AIX cc or a GNU C compiler
newer than 2.7.2 and that you may need to run strload before running a
libpcap application. Also, it may be necessary to run the configure
script as root in order for it to detect that bpf is available. Another
workaround is to use:
./configure --with-pcap=bpf
If you use NeXTSTEP, you will not be able to build libpcap from this
release. We hope to support this operating system in some future
release of libpcap.
If you use SINIX, you should be able to build libpcap from this
release. It is known to compile and run on SINIX-Y/N 5.42 with the C-DS
V1.0 or V1.1 compiler. But note that in some releases of SINIX, yacc
emits incorrect code; if grammar.y fails to compile, change every
occurence of:
#ifdef YYDEBUG
to:
#if YYDEBUG
Another workaround is to use flex and bison.
If you use SCO, you might have trouble building libpcap from this
release. We do not have a machine running SCO and have not had reports
of anyone successfully building on it. Since SCO apparently supports
dlpi, it's possible the current version works. Meanwhile, sco provides
a tcpdump binary as part of their "Network/Security Tools" package:
http://www.sco.com/technology/internet/goodies/#SECURITY
There is also a README that explains how to enable packet capture.
If you use UnixWare, you will not be able to build libpcap from this
release. We hope to support this operating system in some future
release of libpcap. Meanwhile, there appears to be an UnixWare port of
libpcap 0.0 (and tcpdump 3.0) in:
ftp://ftp1.freebird.org/pub/mirror/freebird/internet/systools/
UnixWare appears to use a hacked version of DLPI.
If linking tcpdump fails with "Undefined: _alloca" when using bison on
a Sun4, your version of bison is broken. In any case version 1.16 or
higher is recommended (1.14 is known to cause problems 1.16 is known to
work). Either pick up a current version from:
ftp://prep.ai.mit.edu/pub/gnu/bison.tar.gz
or hack around it by inserting the lines:
#ifdef __GNUC__
#define alloca __builtin_alloca
#else
#ifdef sparc
#include <alloca.h>
#else
char *alloca ();
#endif
#endif
right after the (100 line!) GNU license comment in bison.simple, remove
grammar.[co] and fire up make again.
If you use SunOS 4, your kernel must support streams NIT. If you run a
libpcap program and it dies with:
/dev/nit: No such device
You must add streams NIT support to your kernel configuration, run
config and boot the new kernel.
If you are running a version of SunOS earlier than 4.1, you will need
to replace the Sun supplied /sys/sun{3,4,4c}/OBJ/nit_if.o with the
appropriate version from this distribution's SUNOS4 subdirectory and
build a new kernel:
nit_if.o.sun3-sunos4 (any flavor of sun3)
nit_if.o.sun4c-sunos4.0.3c (SS1, SS1+, IPC, SLC, etc.)
nit_if.o.sun4-sunos4 (Sun4's not covered by
nit_if.o.sun4c-sunos4.0.3c)
These nit replacements fix a bug that makes nit essentially unusable in
pre-SunOS 4.1. In addition, our sun4c-sunos4.0.3c nit gives you
timestamps to the resolution of the SS-1 clock (1 us) rather than the
lousy 20ms timestamps Sun gives you (tcpdump will print out the full
timestamp resolution if it finds it's running on a SS-1).
FILES
-----
CHANGES - description of differences between releases
FILES - list of files exported as part of the distribution
INSTALL - this file
Makefile.in - compilation rules (input to the configure script)
README - description of distribution
SUNOS4 - pre-SunOS 4.1 replacement kernel nit modules
VERSION - version of this release
aclocal.m4 - autoconf macros
bpf/net - copies of bpf_filter.c and bpf.h
bpf_filter.c - symlink to bpf/net/bpf_filter.c
bpf_image.c - bpf disassembly routine
config.guess - autoconf support
config.sub - autoconf support
configure - configure script (run this first)
configure.in - configure script source
etherent.c - /etc/ethers support routines
ethertype.h - ethernet protocol types and names definitions
gencode.c - bpf code generation routines
gencode.h - bpf code generation definitions
grammar.y - filter string grammar
inet.c - network routines
install-sh - BSD style install script
lbl/gnuc.h - gcc macros and defines
lbl/os-*.h - os dependent defines and prototypes
linux-include/* - network include files missing on Linux
mkdep - construct Makefile dependency list
nametoaddr.c - hostname to address routines
net - symlink to bpf/net
optimize.c - bpf optimization routines
pcap-bpf.c - BSD Packet Filter support
pcap-dlpi.c - Data Link Provider Interface support
pcap-enet.c - enet support
pcap-int.h - internal libpcap definitions
pcap-namedb.h - public libpcap name database definitions
pcap-nit.c - Network Interface Tap support
pcap-nit.h - Network Interface Tap definitions
pcap-null.c - dummy monitor support (allows offline use of libpcap)
pcap-pf.c - Packet Filter support
pcap-pf.h - Packet Filter definitions
pcap-snit.c - Streams based Network Interface Tap support
pcap-snoop.c - Snoop network monitoring support
pcap.3 - manual entry
pcap.c - pcap utility routines
pcap.h - public libpcap definitions
ppp.h - Point to Point Protocol definitions
savefile.c - offline support
scanner.l - filter string scanner

@ -0,0 +1,163 @@
# Copyright (c) 1993, 1994, 1995, 1996
# The Regents of the University of California. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that: (1) source code distributions
# retain the above copyright notice and this paragraph in its entirety, (2)
# distributions including binary code include the above copyright notice and
# this paragraph in its entirety in the documentation or other materials
# provided with the distribution, and (3) all advertising materials mentioning
# features or use of this software display the following acknowledgement:
# ``This product includes software developed by the University of California,
# Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
# the University nor the names of its contributors may be used to endorse
# or promote products derived from this software without specific prior
# written permission.
# THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#
# @(#) $Header: /tcpdump/master/libpcap/Makefile.in,v 1.72 1999-10-07 23:46:40 mcr Exp $ (LBL)
#
# Various configurable paths (remember to edit Makefile.in, not Makefile)
#
# Top level hierarchy
prefix = @prefix@
exec_prefix = @exec_prefix@
# Pathname of directory to install the include files
INCLDEST = @includedir@
# Pathname of directory to install the library
LIBDEST = @libdir@
# Pathname of directory to install the man page
MANDEST = @mandir@
# VPATH
srcdir = @srcdir@
VPATH = @srcdir@
#
# You shouldn't need to edit anything below.
#
CC = @CC@
CCOPT = @V_CCOPT@
INCLS = -I. @V_INCLS@
DEFS = @DEFS@
# Standard CFLAGS
CFLAGS = $(CCOPT) $(INCLS) $(DEFS)
INSTALL = @INSTALL@
RANLIB = @V_RANLIB@
#
# Flex and bison allow you to specify the prefixes of the global symbols
# used by the generated parser. This allows programs to use lex/yacc
# and link against libpcap. If you don't have flex or bison, get them.
#
LEX = @V_LEX@
YACC = @V_YACC@
# Explicitly define compilation rule since SunOS 4's make doesn't like gcc.
# Also, gcc does not remove the .o before forking 'as', which can be a
# problem if you don't own the file but can write to the directory.
.c.o:
@rm -f $@
$(CC) $(CFLAGS) -c $(srcdir)/$*.c
PSRC = pcap-@V_PCAP@.c
CSRC = pcap.c inet.c gencode.c optimize.c nametoaddr.c \
etherent.c savefile.c bpf_filter.c bpf_image.c
GENSRC = scanner.c grammar.c version.c
SRC = $(PSRC) $(CSRC) $(GENSRC)
# We would like to say "OBJ = $(SRC:.c=.o)" but Ultrix's make cannot
# hack the extra indirection
OBJ = $(PSRC:.c=.o) $(CSRC:.c=.o) $(GENSRC:.c=.o)
HDR = pcap.h pcap-int.h pcap-namedb.h pcap-nit.h pcap-pf.h \
ethertype.h gencode.h gnuc.h
GENHDR = \
tokdefs.h
TAGHDR = \
bpf/net/bpf.h
TAGFILES = \
$(SRC) $(HDR) $(TAGHDR)
CLEANFILES = $(OBJ) libpcap.a $(GENSRC) $(GENHDR) lex.yy.c
all: libpcap.a
libpcap.a: $(OBJ)
@rm -f $@
ar rc $@ $(OBJ)
$(RANLIB) $@
scanner.c: $(srcdir)/scanner.l
@rm -f $@
$(LEX) -t $< > $$$$.$@; mv $$$$.$@ $@
scanner.o: scanner.c tokdefs.h
tokdefs.h: grammar.c
grammar.c: $(srcdir)/grammar.y
@rm -f grammar.c tokdefs.h
$(YACC) -d $<
mv y.tab.c grammar.c
mv y.tab.h tokdefs.h
grammar.o: grammar.c
@rm -f $@
$(CC) $(CFLAGS) -Dyylval=pcap_lval -c grammar.c
version.o: version.c
version.c: $(srcdir)/VERSION
@rm -f $@
sed -e 's/.*/char pcap_version[] = "&";/' $(srcdir)/VERSION > $@
install: force
$(INSTALL) -m 444 -o bin -g bin libpcap.a $(DESTDIR)$(LIBDEST)/libpcap.a
$(RANLIB) $(DESTDIR)$(LIBDEST)/libpcap.a
install-incl: force
$(INSTALL) -m 444 -o bin -g bin $(srcdir)/pcap.h \
$(DESTDIR)$(INCLDEST)/pcap.h
$(INSTALL) -m 444 -o bin -g bin $(srcdir)/pcap-namedb.h \
$(DESTDIR)$(INCLDEST)/pcap-namedb.h
$(INSTALL) -m 444 -o bin -g bin $(srcdir)/net/bpf.h \
$(DESTDIR)$(INCLDEST)/net/bpf.h
install-man: force
$(INSTALL) -m 444 -o bin -g bin $(srcdir)/pcap.3 \
$(DESTDIR)$(MANDEST)/man3/pcap.3
clean:
rm -f $(CLEANFILES)
distclean:
rm -f $(CLEANFILES) Makefile config.cache config.log config.status \
gnuc.h os-proto.h bpf_filter.c net
tags: $(TAGFILES)
ctags -wtd $(TAGFILES)
tar: force
@cwd=`pwd` ; dir=`basename $$cwd` ; name=libpcap-`cat VERSION` ; \
list="" ; tar="tar chFFf" ; \
for i in `cat FILES` ; do list="$$list $$name/$$i" ; done; \
echo \
"rm -f ../$$name; ln -s $$dir ../$$name" ; \
rm -f ../$$name; ln -s $$dir ../$$name ; \
echo \
"(cd .. ; $$tar - [lots of files]) | compress > /tmp/$$name.tar.Z" ; \
(cd .. ; $$tar - $$list) | compress > /tmp/$$name.tar.Z ; \
echo \
"rm -f ../$$name" ; \
rm -f ../$$name
force: /tmp
depend: $(GENSRC) force
./mkdep -c $(CC) $(DEFS) $(INCLS) $(SRC)

@ -0,0 +1,49 @@
@(#) $Header: /tcpdump/master/libpcap/README,v 1.18 1999-10-07 23:46:40 mcr Exp $ (LBL)
LIBPCAP 0.4
Lawrence Berkeley National Laboratory
Network Research Group
libpcap@ee.lbl.gov
ftp://ftp.ee.lbl.gov/libpcap.tar.Z
This directory contains source code for libpcap, a system-independent
interface for user-level packet capture. libpcap provides a portable
framework for low-level network monitoring. Applications include
network statistics collection, security monitoring, network debugging,
etc. Since almost every system vendor provides a different interface
for packet capture, and since we've developed several tools that
require this functionality, we've created this system-independent API
to ease in porting and to alleviate the need for several
system-dependent packet capture modules in each application.
Note well: this interface is new and is likely to change.
The libpcap interface supports a filtering mechanism based on the
architecture in the BSD packet filter. BPF is described in the 1993
Winter Usenix paper ``The BSD Packet Filter: A New Architecture for
User-level Packet Capture''. A compressed postscript version is in:
ftp://ftp.ee.lbl.gov/papers/bpf-usenix93.ps.Z.
Although most packet capture interfaces support in-kernel filtering,
libpcap utilizes in-kernel filtering only for the BPF interface.
On systems that don't have BPF, all packets are read into user-space
and the BPF filters are evaluated in the libpcap library, incurring
added overhead (especially, for selective filters). Ideally, libpcap
would translate BPF filters into a filter program that is compatible
with the underlying kernel subsystem, but this is not yet implemented.
BPF is standard in 4.4BSD, BSD/386, NetBSD, and FreeBSD. DEC OSF/1
uses the packetfilter interface but has been extended to accept BPF
filters (which libpcap utilizes). Also, you can add BPF filter support
to Ultrix using the kernel source and/or object patches available in:
ftp://gatekeeper.dec.com/pub/DEC/net/bpfext42.tar.Z.
Problems, bugs, questions, desirable enhancements, source code
contributions, etc., should be sent to the email address
"libpcap@ee.lbl.gov".
- Steve McCanne
Craig Leres
Van Jacobson

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@ -0,0 +1 @@
0.4

706
aclocal.m4 vendored

@ -0,0 +1,706 @@
dnl @(#) $Header: /tcpdump/master/libpcap/aclocal.m4,v 1.63 1999-10-07 23:46:40 mcr Exp $ (LBL)
dnl
dnl Copyright (c) 1995, 1996, 1997, 1998
dnl The Regents of the University of California. All rights reserved.
dnl
dnl Redistribution and use in source and binary forms, with or without
dnl modification, are permitted provided that: (1) source code distributions
dnl retain the above copyright notice and this paragraph in its entirety, (2)
dnl distributions including binary code include the above copyright notice and
dnl this paragraph in its entirety in the documentation or other materials
dnl provided with the distribution, and (3) all advertising materials mentioning
dnl features or use of this software display the following acknowledgement:
dnl ``This product includes software developed by the University of California,
dnl Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
dnl the University nor the names of its contributors may be used to endorse
dnl or promote products derived from this software without specific prior
dnl written permission.
dnl THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
dnl WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
dnl MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
dnl
dnl LBL autoconf macros
dnl
dnl
dnl Determine which compiler we're using (cc or gcc)
dnl If using gcc, determine the version number
dnl If using cc, require that it support ansi prototypes
dnl If using gcc, use -O2 (otherwise use -O)
dnl If using cc, explicitly specify /usr/local/include
dnl
dnl usage:
dnl
dnl AC_LBL_C_INIT(copt, incls)
dnl
dnl results:
dnl
dnl $1 (copt set)
dnl $2 (incls set)
dnl CC
dnl LDFLAGS
dnl ac_cv_lbl_gcc_vers
dnl LBL_CFLAGS
dnl
AC_DEFUN(AC_LBL_C_INIT,
[AC_PREREQ(2.12)
AC_BEFORE([$0], [AC_PROG_CC])
AC_BEFORE([$0], [AC_LBL_FIXINCLUDES])
AC_BEFORE([$0], [AC_LBL_DEVEL])
AC_ARG_WITH(gcc, [ --without-gcc don't use gcc])
$1="-O"
$2=""
if test "${srcdir}" != "." ; then
$2="-I\$\(srcdir\)"
fi
if test "${CFLAGS+set}" = set; then
LBL_CFLAGS="$CFLAGS"
fi
if test -z "$CC" ; then
case "$target_os" in
bsdi*)
AC_CHECK_PROG(SHLICC2, shlicc2, yes, no)
if test $SHLICC2 = yes ; then
CC=shlicc2
export CC
fi
;;
esac
fi
if test -z "$CC" -a "$with_gcc" = no ; then
CC=cc
export CC
fi
AC_PROG_CC
if test "$GCC" = yes ; then
if test "$SHLICC2" = yes ; then
ac_cv_lbl_gcc_vers=2
$1="-O2"
else
AC_MSG_CHECKING(gcc version)
AC_CACHE_VAL(ac_cv_lbl_gcc_vers,
ac_cv_lbl_gcc_vers=`$CC -v 2>&1 | \
sed -e '/^gcc version /!d' \
-e 's/^gcc version //' \
-e 's/ .*//' -e 's/^[[[^0-9]]]*//' \
-e 's/\..*//'`)
AC_MSG_RESULT($ac_cv_lbl_gcc_vers)
if test $ac_cv_lbl_gcc_vers -gt 1 ; then
$1="-O2"
fi
fi
else
AC_MSG_CHECKING(that $CC handles ansi prototypes)
AC_CACHE_VAL(ac_cv_lbl_cc_ansi_prototypes,
AC_TRY_COMPILE(
[#include <sys/types.h>],
[int frob(int, char *)],
ac_cv_lbl_cc_ansi_prototypes=yes,
ac_cv_lbl_cc_ansi_prototypes=no))
AC_MSG_RESULT($ac_cv_lbl_cc_ansi_prototypes)
if test $ac_cv_lbl_cc_ansi_prototypes = no ; then
case "$target_os" in
hpux*)
AC_MSG_CHECKING(for HP-UX ansi compiler ($CC -Aa -D_HPUX_SOURCE))
savedcflags="$CFLAGS"
CFLAGS="-Aa -D_HPUX_SOURCE $CFLAGS"
AC_CACHE_VAL(ac_cv_lbl_cc_hpux_cc_aa,
AC_TRY_COMPILE(
[#include <sys/types.h>],
[int frob(int, char *)],
ac_cv_lbl_cc_hpux_cc_aa=yes,
ac_cv_lbl_cc_hpux_cc_aa=no))
AC_MSG_RESULT($ac_cv_lbl_cc_hpux_cc_aa)
if test $ac_cv_lbl_cc_hpux_cc_aa = no ; then
AC_MSG_ERROR(see the INSTALL doc for more info)
fi
CFLAGS="$savedcflags"
V_CCOPT="-Aa $V_CCOPT"
AC_DEFINE(_HPUX_SOURCE)
;;
*)
AC_MSG_ERROR(see the INSTALL doc for more info)
;;
esac
fi
$2="$$2 -I/usr/local/include"
LDFLAGS="$LDFLAGS -L/usr/local/lib"
case "$target_os" in
irix*)
V_CCOPT="$V_CCOPT -xansi -signed -g3"
;;
osf*)
V_CCOPT="$V_CCOPT -std1 -g3"
;;
ultrix*)
AC_MSG_CHECKING(that Ultrix $CC hacks const in prototypes)
AC_CACHE_VAL(ac_cv_lbl_cc_const_proto,
AC_TRY_COMPILE(
[#include <sys/types.h>],
[struct a { int b; };
void c(const struct a *)],
ac_cv_lbl_cc_const_proto=yes,
ac_cv_lbl_cc_const_proto=no))
AC_MSG_RESULT($ac_cv_lbl_cc_const_proto)
if test $ac_cv_lbl_cc_const_proto = no ; then
AC_DEFINE(const,)
fi
;;
esac
fi
])
dnl
dnl Use pfopen.c if available and pfopen() not in standard libraries
dnl Require libpcap
dnl Look for libpcap in ..
dnl Use the installed libpcap if there is no local version
dnl
dnl usage:
dnl
dnl AC_LBL_LIBPCAP(pcapdep, incls)
dnl
dnl results:
dnl
dnl $1 (pcapdep set)
dnl $2 (incls appended)
dnl LIBS
dnl LBL_LIBS
dnl
AC_DEFUN(AC_LBL_LIBPCAP,
[AC_REQUIRE([AC_LBL_LIBRARY_NET])
dnl
dnl save a copy before locating libpcap.a
dnl
LBL_LIBS="$LIBS"
pfopen=/usr/examples/packetfilter/pfopen.c
if test -f $pfopen ; then
AC_CHECK_FUNCS(pfopen)
if test $ac_cv_func_pfopen = "no" ; then
AC_MSG_RESULT(Using $pfopen)
LIBS="$LIBS $pfopen"
fi
fi
AC_MSG_CHECKING(for local pcap library)
libpcap=FAIL
lastdir=FAIL
places=`ls .. | sed -e 's,/$,,' -e 's,^,../,' | \
egrep '/libpcap-[[0-9]]*\.[[0-9]]*(\.[[0-9]]*)?([[ab]][[0-9]]*)?$'`
for dir in $places ../libpcap libpcap ; do
basedir=`echo $dir | sed -e 's/[[ab]][[0-9]]*$//'`
if test $lastdir = $basedir ; then
dnl skip alphas when an actual release is present
continue;
fi
lastdir=$dir
if test -r $dir/pcap.c ; then
libpcap=$dir/libpcap.a
d=$dir
dnl continue and select the last one that exists
fi
done
if test $libpcap = FAIL ; then
AC_MSG_RESULT(not found)
AC_CHECK_LIB(pcap, main, libpcap="-lpcap")
if test $libpcap = FAIL ; then
AC_MSG_ERROR(see the INSTALL doc for more info)
fi
else
$1=$libpcap
$2="-I$d $$2"
AC_MSG_RESULT($libpcap)
fi
LIBS="$libpcap $LIBS"
case "$target_os" in
aix*)
pseexe="/lib/pse.exp"
AC_MSG_CHECKING(for $pseexe)
if test -f $pseexe ; then
AC_MSG_RESULT(yes)
LIBS="$LIBS -I:$pseexe"
fi
;;
esac])
dnl
dnl Define RETSIGTYPE and RETSIGVAL
dnl
dnl usage:
dnl
dnl AC_LBL_TYPE_SIGNAL
dnl
dnl results:
dnl
dnl RETSIGTYPE (defined)
dnl RETSIGVAL (defined)
dnl
AC_DEFUN(AC_LBL_TYPE_SIGNAL,
[AC_BEFORE([$0], [AC_LBL_LIBPCAP])
AC_TYPE_SIGNAL
if test "$ac_cv_type_signal" = void ; then
AC_DEFINE(RETSIGVAL,)
else
AC_DEFINE(RETSIGVAL,(0))
fi
case "$target_os" in
irix*)
AC_DEFINE(_BSD_SIGNALS)
;;
*)
dnl prefer sigset() to sigaction()
AC_CHECK_FUNCS(sigset)
if test $ac_cv_func_sigset = no ; then
AC_CHECK_FUNCS(sigaction)
fi
;;
esac])
dnl
dnl If using gcc, make sure we have ANSI ioctl definitions
dnl
dnl usage:
dnl
dnl AC_LBL_FIXINCLUDES
dnl
AC_DEFUN(AC_LBL_FIXINCLUDES,
[if test "$GCC" = yes ; then
AC_MSG_CHECKING(for ANSI ioctl definitions)
AC_CACHE_VAL(ac_cv_lbl_gcc_fixincludes,
AC_TRY_COMPILE(
[/*
* This generates a "duplicate case value" when fixincludes
* has not be run.
*/
# include <sys/types.h>
# include <sys/time.h>
# include <sys/ioctl.h>
# ifdef HAVE_SYS_IOCCOM_H
# include <sys/ioccom.h>
# endif],
[switch (0) {
case _IO('A', 1):;
case _IO('B', 1):;
}],
ac_cv_lbl_gcc_fixincludes=yes,
ac_cv_lbl_gcc_fixincludes=no))
AC_MSG_RESULT($ac_cv_lbl_gcc_fixincludes)
if test $ac_cv_lbl_gcc_fixincludes = no ; then
# Don't cache failure
unset ac_cv_lbl_gcc_fixincludes
AC_MSG_ERROR(see the INSTALL for more info)
fi
fi])
dnl
dnl Check for flex, default to lex
dnl Require flex 2.4 or higher
dnl Check for bison, default to yacc
dnl Default to lex/yacc if both flex and bison are not available
dnl Define the yy prefix string if using flex and bison
dnl
dnl usage:
dnl
dnl AC_LBL_LEX_AND_YACC(lex, yacc, yyprefix)
dnl
dnl results:
dnl
dnl $1 (lex set)
dnl $2 (yacc appended)
dnl $3 (optional flex and bison -P prefix)
dnl
AC_DEFUN(AC_LBL_LEX_AND_YACC,
[AC_ARG_WITH(flex, [ --without-flex don't use flex])
AC_ARG_WITH(bison, [ --without-bison don't use bison])
if test "$with_flex" = no ; then
$1=lex
else
AC_CHECK_PROGS($1, flex, lex)
fi
if test "$$1" = flex ; then
# The -V flag was added in 2.4
AC_MSG_CHECKING(for flex 2.4 or higher)
AC_CACHE_VAL(ac_cv_lbl_flex_v24,
if flex -V >/dev/null 2>&1; then
ac_cv_lbl_flex_v24=yes
else
ac_cv_lbl_flex_v24=no
fi)
AC_MSG_RESULT($ac_cv_lbl_flex_v24)
if test $ac_cv_lbl_flex_v24 = no ; then
s="2.4 or higher required"
AC_MSG_WARN(ignoring obsolete flex executable ($s))
$1=lex
fi
fi
if test "$with_bison" = no ; then
$2=yacc
else
AC_CHECK_PROGS($2, bison, yacc)
fi
if test "$$2" = bison ; then
$2="$$2 -y"
fi
if test "$$1" != lex -a "$$2" = yacc -o "$$1" = lex -a "$$2" != yacc ; then
AC_MSG_WARN(don't have both flex and bison; reverting to lex/yacc)
$1=lex
$2=yacc
fi
if test "$$1" = flex -a -n "$3" ; then
$1="$$1 -P$3"
$2="$$2 -p $3"
fi])
dnl
dnl Checks to see if union wait is used with WEXITSTATUS()
dnl
dnl usage:
dnl
dnl AC_LBL_UNION_WAIT
dnl
dnl results:
dnl
dnl DECLWAITSTATUS (defined)
dnl
AC_DEFUN(AC_LBL_UNION_WAIT,
[AC_MSG_CHECKING(if union wait is used)
AC_CACHE_VAL(ac_cv_lbl_union_wait,
AC_TRY_COMPILE([
# include <sys/types.h>
# include <sys/wait.h>],
[int status;
u_int i = WEXITSTATUS(status);
u_int j = waitpid(0, &status, 0);],
ac_cv_lbl_union_wait=no,
ac_cv_lbl_union_wait=yes))
AC_MSG_RESULT($ac_cv_lbl_union_wait)
if test $ac_cv_lbl_union_wait = yes ; then
AC_DEFINE(DECLWAITSTATUS,union wait)
else
AC_DEFINE(DECLWAITSTATUS,int)
fi])
dnl
dnl Checks to see if the sockaddr struct has the 4.4 BSD sa_len member
dnl
dnl usage:
dnl
dnl AC_LBL_SOCKADDR_SA_LEN
dnl
dnl results:
dnl
dnl HAVE_SOCKADDR_SA_LEN (defined)
dnl
AC_DEFUN(AC_LBL_SOCKADDR_SA_LEN,
[AC_MSG_CHECKING(if sockaddr struct has sa_len member)
AC_CACHE_VAL(ac_cv_lbl_sockaddr_has_sa_len,
AC_TRY_COMPILE([
# include <sys/types.h>
# include <sys/socket.h>],
[u_int i = sizeof(((struct sockaddr *)0)->sa_len)],
ac_cv_lbl_sockaddr_has_sa_len=yes,
ac_cv_lbl_sockaddr_has_sa_len=no))
AC_MSG_RESULT($ac_cv_lbl_sockaddr_has_sa_len)
if test $ac_cv_lbl_sockaddr_has_sa_len = yes ; then
AC_DEFINE(HAVE_SOCKADDR_SA_LEN)
fi])
dnl
dnl Checks to see if -R is used
dnl
dnl usage:
dnl
dnl AC_LBL_HAVE_RUN_PATH
dnl
dnl results:
dnl
dnl ac_cv_lbl_have_run_path (yes or no)
dnl
AC_DEFUN(AC_LBL_HAVE_RUN_PATH,
[AC_MSG_CHECKING(for ${CC-cc} -R)
AC_CACHE_VAL(ac_cv_lbl_have_run_path,
[echo 'main(){}' > conftest.c
${CC-cc} -o conftest conftest.c -R/a1/b2/c3 >conftest.out 2>&1
if test ! -s conftest.out ; then
ac_cv_lbl_have_run_path=yes
else
ac_cv_lbl_have_run_path=no
fi
rm -f conftest*])
AC_MSG_RESULT($ac_cv_lbl_have_run_path)
])
dnl
dnl Due to the stupid way it's implemented, AC_CHECK_TYPE is nearly useless.
dnl
dnl usage:
dnl
dnl AC_LBL_CHECK_TYPE
dnl
dnl results:
dnl
dnl int32_t (defined)
dnl u_int32_t (defined)
dnl
AC_DEFUN(AC_LBL_CHECK_TYPE,
[AC_MSG_CHECKING(for $1 using $CC)
AC_CACHE_VAL(ac_cv_lbl_have_$1,
AC_TRY_COMPILE([
# include "confdefs.h"
# include <sys/types.h>
# if STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
# endif],
[$1 i],
ac_cv_lbl_have_$1=yes,
ac_cv_lbl_have_$1=no))
AC_MSG_RESULT($ac_cv_lbl_have_$1)
if test $ac_cv_lbl_have_$1 = no ; then
AC_DEFINE($1, $2)
fi])
dnl
dnl Checks to see if unaligned memory accesses fail
dnl
dnl usage:
dnl
dnl AC_LBL_UNALIGNED_ACCESS
dnl
dnl results:
dnl
dnl LBL_ALIGN (DEFINED)
dnl
AC_DEFUN(AC_LBL_UNALIGNED_ACCESS,
[AC_MSG_CHECKING(if unaligned accesses fail)
AC_CACHE_VAL(ac_cv_lbl_unaligned_fail,
[case "$target_cpu" in
alpha|hp*|mips|sparc)
ac_cv_lbl_unaligned_fail=yes
;;
*)
cat >conftest.c <<EOF
# include <sys/types.h>
# include <sys/wait.h>
# include <stdio.h>
unsigned char a[[5]] = { 1, 2, 3, 4, 5 };
main() {
unsigned int i;
pid_t pid;
int status;
/* avoid "core dumped" message */
pid = fork();
if (pid < 0)
exit(2);
if (pid > 0) {
/* parent */
pid = waitpid(pid, &status, 0);
if (pid < 0)
exit(3);
exit(!WIFEXITED(status));
}
/* child */
i = *(unsigned int *)&a[[1]];
printf("%d\n", i);
exit(0);
}
EOF
${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS \
conftest.c $LIBS >/dev/null 2>&1
if test ! -x conftest ; then
dnl failed to compile for some reason
ac_cv_lbl_unaligned_fail=yes
else
./conftest >conftest.out
if test ! -s conftest.out ; then
ac_cv_lbl_unaligned_fail=yes
else
ac_cv_lbl_unaligned_fail=no
fi
fi
rm -f conftest* core core.conftest
;;
esac])
AC_MSG_RESULT($ac_cv_lbl_unaligned_fail)
if test $ac_cv_lbl_unaligned_fail = yes ; then
AC_DEFINE(LBL_ALIGN)
fi])
dnl
dnl If using gcc and the file .devel exists:
dnl Compile with -g (if supported) and -Wall
dnl If using gcc 2, do extra prototype checking
dnl If an os prototype include exists, symlink os-proto.h to it
dnl
dnl usage:
dnl
dnl AC_LBL_DEVEL(copt)
dnl
dnl results:
dnl
dnl $1 (copt appended)
dnl HAVE_OS_PROTO_H (defined)
dnl os-proto.h (symlinked)
dnl
AC_DEFUN(AC_LBL_DEVEL,
[rm -f os-proto.h
if test "${LBL_CFLAGS+set}" = set; then
$1="$$1 ${LBL_CFLAGS}"
fi
if test -f .devel ; then
if test "$GCC" = yes ; then
if test "${LBL_CFLAGS+set}" != set; then
if test "$ac_cv_prog_cc_g" = yes ; then
$1="-g $$1"
fi
$1="$$1 -Wall"
if test $ac_cv_lbl_gcc_vers -gt 1 ; then
$1="$$1 -Wmissing-prototypes -Wstrict-prototypes"
fi
fi
else
case "$target_os" in
irix6*)
V_CCOPT="$V_CCOPT -n32"
;;
*)
;;
esac
fi
os=`echo $target_os | sed -e 's/\([[0-9]][[0-9]]*\)[[^0-9]].*$/\1/'`
name="lbl/os-$os.h"
if test -f $name ; then
ln -s $name os-proto.h
AC_DEFINE(HAVE_OS_PROTO_H)
else
AC_MSG_WARN(can't find $name)
fi
fi])
dnl
dnl Improved version of AC_CHECK_LIB
dnl
dnl Thanks to John Hawkinson (jhawk@mit.edu)
dnl
dnl usage:
dnl
dnl AC_LBL_CHECK_LIB(LIBRARY, FUNCTION [, ACTION-IF-FOUND [,
dnl ACTION-IF-NOT-FOUND [, OTHER-LIBRARIES]]])
dnl
dnl results:
dnl
dnl LIBS
dnl
define(AC_LBL_CHECK_LIB,
[AC_MSG_CHECKING([for $2 in -l$1])
dnl Use a cache variable name containing both the library and function name,
dnl because the test really is for library $1 defining function $2, not
dnl just for library $1. Separate tests with the same $1 and different $2's
dnl may have different results.
ac_lib_var=`echo $1['_']$2['_']$5 | sed 'y%./+- %__p__%'`
AC_CACHE_VAL(ac_cv_lbl_lib_$ac_lib_var,
[ac_save_LIBS="$LIBS"
LIBS="-l$1 $5 $LIBS"
AC_TRY_LINK(dnl
ifelse([$2], [main], , dnl Avoid conflicting decl of main.
[/* Override any gcc2 internal prototype to avoid an error. */
]ifelse(AC_LANG, CPLUSPLUS, [#ifdef __cplusplus
extern "C"
#endif
])dnl
[/* We use char because int might match the return type of a gcc2
builtin and then its argument prototype would still apply. */
char $2();
]),
[$2()],
eval "ac_cv_lbl_lib_$ac_lib_var=yes",
eval "ac_cv_lbl_lib_$ac_lib_var=no")
LIBS="$ac_save_LIBS"
])dnl
if eval "test \"`echo '$ac_cv_lbl_lib_'$ac_lib_var`\" = yes"; then
AC_MSG_RESULT(yes)
ifelse([$3], ,
[changequote(, )dnl
ac_tr_lib=HAVE_LIB`echo $1 | sed -e 's/[^a-zA-Z0-9_]/_/g' \
-e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
changequote([, ])dnl
AC_DEFINE_UNQUOTED($ac_tr_lib)
LIBS="-l$1 $LIBS"
], [$3])
else
AC_MSG_RESULT(no)
ifelse([$4], , , [$4
])dnl
fi
])
dnl
dnl AC_LBL_LIBRARY_NET
dnl
dnl This test is for network applications that need socket() and
dnl gethostbyname() -ish functions. Under Solaris, those applications
dnl need to link with "-lsocket -lnsl". Under IRIX, they need to link
dnl with "-lnsl" but should *not* link with "-lsocket" because
dnl libsocket.a breaks a number of things (for instance:
dnl gethostbyname() under IRIX 5.2, and snoop sockets under most
dnl versions of IRIX).
dnl
dnl Unfortunately, many application developers are not aware of this,
dnl and mistakenly write tests that cause -lsocket to be used under
dnl IRIX. It is also easy to write tests that cause -lnsl to be used
dnl under operating systems where neither are necessary (or useful),
dnl such as SunOS 4.1.4, which uses -lnsl for TLI.
dnl
dnl This test exists so that every application developer does not test
dnl this in a different, and subtly broken fashion.
dnl It has been argued that this test should be broken up into two
dnl seperate tests, one for the resolver libraries, and one for the
dnl libraries necessary for using Sockets API. Unfortunately, the two
dnl are carefully intertwined and allowing the autoconf user to use
dnl them independantly potentially results in unfortunate ordering
dnl dependancies -- as such, such component macros would have to
dnl carefully use indirection and be aware if the other components were
dnl executed. Since other autoconf macros do not go to this trouble,
dnl and almost no applications use sockets without the resolver, this
dnl complexity has not been implemented.
dnl
dnl The check for libresolv is in case you are attempting to link
dnl statically and happen to have a libresolv.a lying around (and no
dnl libnsl.a).
dnl
AC_DEFUN(AC_LBL_LIBRARY_NET, [
# Most operating systems have gethostbyname() in the default searched
# libraries (i.e. libc):
AC_CHECK_FUNC(gethostbyname, ,
# Some OSes (eg. Solaris) place it in libnsl:
AC_LBL_CHECK_LIB(nsl, gethostbyname, ,
# Some strange OSes (SINIX) have it in libsocket:
AC_LBL_CHECK_LIB(socket, gethostbyname, ,
# Unfortunately libsocket sometimes depends on libnsl.
# AC_CHECK_LIB's API is essentially broken so the
# following ugliness is necessary:
AC_LBL_CHECK_LIB(socket, gethostbyname,
LIBS="-lsocket -lnsl $LIBS",
AC_CHECK_LIB(resolv, gethostbyname),
-lnsl))))
AC_CHECK_FUNC(socket, , AC_CHECK_LIB(socket, socket, ,
AC_LBL_CHECK_LIB(socket, socket, LIBS="-lsocket -lnsl $LIBS", ,
-lnsl)))
# DLPI needs putmsg under HPUX so test for -lstr while we're at it
AC_CHECK_LIB(str, putmsg)
])

@ -0,0 +1,264 @@
/*-
* Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
* The Regents of the University of California. All rights reserved.
*
* This code is derived from the Stanford/CMU enet packet filter,
* (net/enet.c) distributed as part of 4.3BSD, and code contributed
* to Berkeley by Steven McCanne and Van Jacobson both of Lawrence
* Berkeley Laboratory.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)bpf.h 7.1 (Berkeley) 5/7/91
*
* @(#) $Header: /tcpdump/master/libpcap/bpf/net/Attic/bpf.h,v 1.36 1999-10-07 23:46:41 mcr Exp $ (LBL)
*/
#ifndef BPF_MAJOR_VERSION
/* BSD style release date */
#define BPF_RELEASE 199606
typedef int bpf_int32;
typedef u_int bpf_u_int32;
/*
* Alignment macros. BPF_WORDALIGN rounds up to the next
* even multiple of BPF_ALIGNMENT.