1/* $NetBSD: exec_coff.c,v 1.6 2003/07/26 20:34:12 salo Exp $ */
2
3/*
4 * Copyright (c) 1997 Christopher G. Demetriou
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *          This product includes software developed for the
18 *          NetBSD Project.  See http://www.NetBSD.org/ for
19 *          information about NetBSD.
20 * 4. The name of the author may not be used to endorse or promote products
21 *    derived from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 *
34 * <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
35 */
36
37#include <sys/cdefs.h>
38#ifndef lint
39__RCSID("$NetBSD: exec_coff.c,v 1.6 2003/07/26 20:34:12 salo Exp $");
40#endif
41
42#include <stdio.h>
43#include <stdlib.h>
44#include <string.h>
45#include <unistd.h>
46#include <errno.h>
47#include <limits.h>
48#include <sys/types.h>
49#include <sys/stat.h>
50
51#include "extern.h"
52
53#if defined(NLIST_COFF)
54
55#include <sys/exec_coff.h>
56
57int
58check_coff(int fd, const char *filename)
59{
60	struct coff_filehdr fh;
61	struct stat sb;
62
63	/*
64	 * Check the header to make sure it's an COFF file (of the
65	 * appropriate size).
66	 */
67	if (fstat(fd, &sb) == -1)
68		return 0;
69	if (sb.st_size > SIZE_T_MAX)
70		return 0;
71	if (read(fd, &fh, sizeof fh) != sizeof fh)
72		return 0;
73
74	if (COFF_BADMAG(&fh))
75		return 0;
76
77	return 1;
78}
79
80int
81hide_coff(int fd, const char *filename)
82{
83
84	fprintf(stderr, "%s: COFF executables not currently supported\n",
85		filename);
86	return 1;
87}
88
89#endif /* defined(NLIST_COFF) */
90