xref: /freebsd/contrib/tcpdump/machdep.c (revision 1b6c76a2fe091c74f08427e6c870851025a9cf67)
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[] =
24     "@(#) $Header: /tcpdump/master/tcpdump/machdep.c,v 1.6 2000/01/17 06:24:23 itojun Exp $ (LBL)";
25 #endif
26 
27 #ifdef HAVE_CONFIG_H
28 #include "config.h"
29 #endif
30 
31 #include <sys/types.h>
32 #ifdef __osf__
33 #include <sys/sysinfo.h>
34 #include <sys/proc.h>
35 #endif
36 
37 #include "machdep.h"
38 
39 int
40 abort_on_misalignment(char *ebuf, size_t ebufsiz)
41 {
42 #ifdef __osf__
43 	static int buf[2] = { SSIN_UACPROC, UAC_SIGBUS };
44 
45 	if (setsysinfo(SSI_NVPAIRS, (caddr_t)buf, 1, 0, 0) < 0) {
46 		(void)snprintf(ebuf, ebufsiz, "setsysinfo: errno %d", errno);
47 		return (-1);
48 	}
49 #endif
50 	return (0);
51 }
52