tcpdump mailing list archives
Re: alignment
From: Guy Harris <guy () netapp com>
Date: Sun, 10 Nov 2002 02:26:33 -0800
On Sat, Nov 09, 2002 at 11:50:17AM +0900, Jun-ichiro itojun Hagino wrote:
i was thinking about something like this: #if GCC #define __ATTRIBUTE_PACKED__ __attribute__((packed)) #else #define __ATTRIBUTE_PACKED__ #endif struct foo { u_int32_t bar; u_int32_t baz; } __ATTRIBUTE_PACKED__;
Note that you'll have to do that to "struct rpc_msg" as well - which means getting that structure from tcpdump header files rather than from native OS header files. (I just tried running, on a SPARC/Solaris machine, the latest tcpdump, reading a Token Ring capture; it got an alignment fault on direction = (enum msg_type)ntohl(rp->rm_direction); in "print-udp.c".) I don't know if there are any other structures left that we're getting from the OS; we should be defining most, if not all, of them ourselves now. - This is the TCPDUMP workers list. It is archived at http://www.tcpdump.org/lists/workers/index.html To unsubscribe use mailto:tcpdump-workers-request () tcpdump org?body=unsubscribe
Current thread:
- alignment itojun (Nov 08)
- Re: alignment Guy Harris (Nov 08)
- Re: alignment Jun-ichiro itojun Hagino (Nov 08)
- Re: alignment Guy Harris (Nov 08)
- Re: alignment Jun-ichiro itojun Hagino (Nov 08)
- Re: alignment Guy Harris (Nov 08)
- Re: alignment Jun-ichiro itojun Hagino (Nov 09)
- Re: alignment Guy Harris (Nov 09)
- Re: alignment Jun-ichiro itojun Hagino (Nov 08)
- Re: alignment Guy Harris (Nov 10)
- Re: alignment Guy Harris (Nov 08)
- Re: alignment Guy Harris (Dec 11)