xref: /freebsd/contrib/tcpdump/machdep.c (revision 1670a1c2a47d10ecccd001970b859caf93cd3b6e)
1 /*
2  * Copyright (c) 1996, 1997
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that: (1) source code distributions
7  * retain the above copyright notice and this paragraph in its entirety, (2)
8  * distributions including binary code include the above copyright notice and
9  * this paragraph in its entirety in the documentation or other materials
10  * provided with the distribution, and (3) all advertising materials mentioning
11  * features or use of this software display the following acknowledgement:
12  * ``This product includes software developed by the University of California,
13  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14  * the University nor the names of its contributors may be used to endorse
15  * or promote products derived from this software without specific prior
16  * written permission.
17  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
20  */
21 
22 #ifndef lint
23 static const char rcsid[] _U_ =
24     "@(#) $Header: /tcpdump/master/tcpdump/machdep.c,v 1.13 2003-12-15 03:53:21 guy Exp $ (LBL)";
25 #endif
26 
27 #ifdef HAVE_CONFIG_H
28 #include "config.h"
29 #endif
30 
31 /*
32  * XXX - all we need, on platforms other than DEC OSF/1 (a/k/a Digital UNIX,
33  * a/k/a Tru64 UNIX), is "size_t", which is a standard C type; what do we
34  * need to do to get it defined?  This is clearly wrong, as we shouldn't
35  * have to include UNIX or Windows system header files to get it.
36  */
37 #include <tcpdump-stdinc.h>
38 
39 #ifndef HAVE___ATTRIBUTE__
40 #define __attribute__(x)
41 #endif /* HAVE___ATTRIBUTE__ */
42 
43 #ifdef __osf__
44 #include <sys/sysinfo.h>
45 #include <sys/proc.h>
46 
47 #if !defined(HAVE_SNPRINTF)
48 int snprintf(char *, size_t, const char *, ...)
49      __attribute__((format(printf, 3, 4)));
50 #endif /* !defined(HAVE_SNPRINTF) */
51 #endif /* __osf__ */
52 
53 #include "machdep.h"
54 
55 int
56 abort_on_misalignment(char *ebuf _U_, size_t ebufsiz _U_)
57 {
58 #ifdef __osf__
59 	static int buf[2] = { SSIN_UACPROC, UAC_SIGBUS };
60 
61 	if (setsysinfo(SSI_NVPAIRS, (caddr_t)buf, 1, 0, 0) < 0) {
62 		(void)snprintf(ebuf, ebufsiz, "setsysinfo: errno %d", errno);
63 		return (-1);
64 	}
65 #endif
66 	return (0);
67 }
68