2 * Copyright (c) 1980, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * @(#) Copyright (c) 1980, 1993 The Regents of the University of California. All rights reserved.
34 * @(#)swapon.c 8.1 (Berkeley) 6/5/93
35 * $FreeBSD: src/sbin/dumpon/dumpon.c,v 1.10.2.2 2001/07/30 10:30:05 dd Exp $
36 * $DragonFly: src/sbin/dumpon/dumpon.c,v 1.5 2006/03/25 07:44:14 dillon Exp $
44 #include <sys/param.h>
45 #include <sys/sysctl.h>
49 void usage(void) __dead2
;
52 main(int argc
, char **argv
)
59 while ((ch
= getopt(argc
, argv
, "v")) != -1)
70 if (!argv
[0] || argv
[1])
73 if (strcmp(argv
[0], "off")) {
74 rv
= stat(argv
[0], &stab
);
76 err(EX_OSFILE
, "%s", argv
[0]);
79 if (!S_ISCHR(stab
.st_mode
)) {
81 "%s: must specify a character disk device",
89 mib
[1] = KERN_DUMPDEV
;
91 rv
= sysctl(mib
, 2, (void *)0, (size_t *)0, &stab
.st_rdev
,
94 err(EX_OSERR
, "sysctl: kern.dumpdev");
98 if (stab
.st_rdev
== NODEV
) {
99 printf("dumpon: crash dumps disabled\n");
101 printf("dumpon: crash dumps to %s (%lu, %#lx)\n",
103 (unsigned long)major(stab
.st_rdev
),
104 (unsigned long)minor(stab
.st_rdev
));
115 "usage: dumpon [-v] special_file\n"
116 " dumpon [-v] off\n");