NetBSD/libexec/lfs_cleanerd/misc.c

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/* $NetBSD: misc.c,v 1.6 1999/03/14 11:39:28 drochner Exp $ */
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/*-
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
static char sccsid[] = "from: @(#)misc.c 8.1 (Berkeley) 6/4/93";
#else
__RCSID("$NetBSD: misc.c,v 1.6 1999/03/14 11:39:28 drochner Exp $");
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#endif
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#endif /* not lint */
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#include <sys/param.h>
#include <sys/mount.h>
#include <ufs/ufs/dinode.h>
#include <ufs/lfs/lfs.h>
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#include <errno.h>
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
#include <syslog.h>
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#include "clean.h"
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extern char *special;
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void
get(fd, off, p, len)
int fd;
off_t off;
void *p;
size_t len;
{
int rbytes;
if (lseek(fd, off, SEEK_SET) < 0) {
syslog(LOG_ERR, "Exiting: %s: lseek: %m", special);
exit(1);
}
if ((rbytes = read(fd, p, len)) < 0) {
syslog(LOG_ERR, "Exiting: %s: read: %m", special);
exit(1);
}
if (rbytes != len) {
syslog(LOG_ERR, "Exiting: %s: short read (%d, not %ld)",
special, rbytes, (long)len);
exit(1);
}
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}