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fcc82f451d
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.
17 lines
287 B
C
17 lines
287 B
C
/*
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* NETBIOS protocol formats
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*
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* @(#) $Header: /tcpdump/master/tcpdump/netbios.h,v 1.3 2002-12-11 07:13:55 guy Exp $
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*/
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struct p8022Hdr {
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u_char dsap;
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u_char ssap;
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u_char flags;
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};
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#define p8022Size 3 /* min 802.2 header size */
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#define UI 0x03 /* 802.2 flags */
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