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/* $FreeBSD$ */
/*-
* Copyright (c) 2011 Hans Petter Selasky. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <fcntl.h>
#include <err.h>
#include <sysexits.h>
#include <unistd.h>
#include "bus_load_file.h"
void
load_file(const char *fname, uint8_t **pptr, uint32_t *plen)
{
uint8_t *ptr;
uint32_t len;
off_t off;
int f;
f = open(fname, O_RDONLY);
if (f < 0)
err(EX_NOINPUT, "Cannot open file '%s'", fname);
off = lseek(f, 0, SEEK_END);
if (off < 0) {
err(EX_NOINPUT, "Cannot seek to "
"end of file '%s'", fname);
}
if (lseek(f, 0, SEEK_SET) < 0) {
err(EX_NOINPUT, "Cannot seek to "
"beginning of file '%s'", fname);
}
len = off;
if (len != off)
err(EX_NOINPUT, "File '%s' is too big", fname);
ptr = malloc(len);
if (ptr == NULL)
errx(EX_SOFTWARE, "Out of memory");
if (read(f, ptr, len) != len)
err(EX_NOINPUT, "Cannot read all data");
close(f);
*pptr = ptr;
*plen = len;
}
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