compile with Sun C, as "interface.h" isn't being included before the
structures are being declared.
Furthermore, in the files that Sun C *can* compile, it doesn't cause Sun
C to generate code that's safe with unaligned accesses, as
"__attribute__" is defined as a do-nothing macro with compilers that
don't support it.
Therefore, we get rid of that tag on the structures to which it was
added, and instead use "EXTRACT_16BIT()" and "EXTRACT_32BIT()" to fetch
16-bit and 32-bit big-endian quantities from packets. We also fix some
other references to multi-byte quantities to get rid of code that tries
to do unaligned loads on platforms that don't support them.
We also throw in a hack that makes those macros use
"__attribute__((packed))" on structures containing only one 16-bit or
32-bit integer to get the compiler to generate unaligned-safe code
rather than doing it by hand. (GCC on SPARC produces the same code that
doing it by hand does; I don't know if GCC on any other big-endian
strict-alignment processor generates better code for that case. On
little-endian processors, as "ntohs()" and "ntohl()" might be functions,
that might actually produce worse code.)
Fix some places to use "%u" rather than "%d" to print unsigned
quantities.
(We call it "nwlink-dgm" for now; Ethereal calls it a NWLink SMB
datagram.)
Don't throw every LLC frame with unknown SAPs at the NetBIOS-over-IPX
dissector; just throw the frames for IPX sockets 0x455 and 0x553 at it,
as those appear to be the sockets used (if there are any others, please
add them to the IPX dissector - putting it back in the LLC dissector
won't help, as all IPX frames, including LLC frames, should now be
handed to the IPX dissector).
Do better bounds checking in "ipx_netbios_print()" and
"netbeui_print()", i.e. don't go past the end of the captured data in
the packet when looking for the 0xFF S M B signature.
