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We're eventually going to stop defining the SIZEOF_ values, as we
support, for example, building fat on Mac OS X, and SIZEOF_LONG, for
example, is different between 32-bit and 64-bit builds.
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For OS X version 10.{x}.{y}, Darwin is (at least for later versions)
version {x+4}.{y}.
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Instead of requiring the user to specify -arch options on OS X to build
a universal version of tcpdump, just default to universal on OS X by
default. Pick the particular targets to match the way tcpdump is built
for the OS for which we're building.
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./configure --without-chroot will configure tcpdump with "no" as the
value of chroot directory and cause tcpdump to fail with:
tcpdump: Couldn't chroot/chdir to 'no': No such file or directory
This patch makes ./configure to avoid chroot directory when called with
--without-chroot.
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Conflicts:
CHANGES
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They allow the user to specify flags to indicate the target
architecture(s) (yes, possibly plural - think, for example, Mac OS X)
for which we're building. Those might need to be used not only when
compiling, but also when linking and when building a shared library.
This is not for general cross-compiling, it's for use on platforms where
versions of the native OS support more than one instruction set and
where you want to build for the OS on which you're running but not for
the default build architecture on the machine on which you're running.
This may currently be less useful for tcpdump, as tcpdump currently
builds no libraries, but it's there for compatibility with libpcap.
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Reviewed-By: Guy Harris <guy@alum.mit.edu>
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linkaddr_string().
Clean up style a bit while we're at it.
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Presumably the idea is that the technique is generally applicable as
long as the traffic being carried is either IPv4, IPv6, OSI CLNP, ES-IS,
or IS-IS.
Also, by the time we get there, we know we've reached the bottom of the
MPLS stack (the do loop either fails by running past the end of the
packet and going to trunc, or by terminating because we find a label
entry with the BOS bit set); there's no need to check for that.
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specified.
Even with multiple layers in the stack, print on one line unless -v was
specified.
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git+ssh://kingsmere.gatineau.credil.org/home/mcr/src/tcpdump
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We now precompute the CRC-10 table allowing us to mark it as const. The table was precomputed using a Python snippet (included as comment)
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Instead of having the Ethernet-type handler process the VLAN and Alteon
jumbo frame Ethernet type values, process them in the Ethernet (and
Linux cooked-mode) dissectors. This makes it easier for the right MAC
addresses to be printed for those packets.
As part of that, rename ether_encap_print() to ethertype_print() - it
doesn't print encapsulated Ethernet frames, it prints payloads whose
packet type is indicated by an Ethernet type field value - and remove
the no-longer-needed "extracted Ethernet type" argument. That also lets
us eliminate it from the SNAP print routine.
Make ether_print() take a function, and an argument to pass to that
function, as parameters, so that, for example, the ATM LANE printer can
use it and put the LEC ID into the link-layer headeer printout.
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Use the EXTRACT_ macros to extract multi-byte integral values from
packets, rather than just dereferencing pointers into the packet; there
is no guarantee that the packet data will be aligned on the right
boundary, and there is no guarantee that, if they're not, a direct
access will work correctly.
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Use the EXTRACT_ macros to extract multi-byte integral values from
packets, rather than just dereferencing pointers into the packet; there
is no guarantee that the packet data will be aligned on the right
boundary, and there is no guarantee that, if they're not, a direct
access will work correctly.
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