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/* $OpenBSD: misc.c,v 1.6 2003/06/11 14:24:46 deraadt Exp $ */
/*-
* 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. 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.
*/
#ifndef lint
/*static char sccsid[] = "@(#)misc.c 8.1 (Berkeley) 6/4/93";*/
static char rcsid[] = "$OpenBSD: misc.c,v 1.6 2003/06/11 14:24:46 deraadt Exp $";
#endif /* not lint */
#include <sys/types.h>
#include <unistd.h>
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
extern char *special;
void
err(const int fatal, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
(void)fprintf(stderr, "%s: ", special);
(void)vfprintf(stderr, fmt, ap);
va_end(ap);
if (errno)
(void)fprintf(stderr, " %s", strerror(errno));
(void)fprintf(stderr, "\n");
if (fatal)
exit(1);
}
void
get(int fd, off_t off, void *p, size_t len)
{
int rbytes;
if (lseek(fd, off, SEEK_SET) < 0)
err(1, "%s: %s", special, strerror(errno));
if ((rbytes = read(fd, p, len)) < 0)
err(1, "%s: %s", special, strerror(errno));
if (rbytes != len)
err(1, "%s: short read (%d, not %d)", special, rbytes, len);
}
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