1 /* $NetBSD: secure_path.c,v 1.1 2001/08/20 14:47:50 wiz Exp $ */
4 * Copyright (c) 1995,1997 Berkeley Software Design, Inc. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by Berkeley Software Design,
18 * 4. The name of Berkeley Software Design, Inc. may not be used to endorse
19 * or promote products derived from this software without specific prior
22 * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN, INC. ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN, INC. BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * BSDI login_cap.c,v 2.13 1998/02/07 03:17:05 prb Exp
37 #include <sys/cdefs.h>
38 #if defined(LIBC_SCCS) && !defined(lint)
39 __RCSID("$NetBSD: secure_path.c,v 1.1 2001/08/20 14:47:50 wiz Exp $");
40 #endif /* LIBC_SCCS and not lint */
42 #include <sys/types.h>
50 secure_path(const char *path
)
54 _DIAGASSERT(path
!= NULL
);
57 * If not a regular file, or is owned/writable by someone
58 * other than root, quit.
60 if (lstat(path
, &sb
) < 0)
61 /* syslog(LOG_ERR, "cannot stat %s: %m", path) */;
62 else if (!S_ISREG(sb
.st_mode
))
63 syslog(LOG_ERR
, "%s: not a regular file", path
);
64 else if (sb
.st_uid
!= 0)
65 syslog(LOG_ERR
, "%s: not owned by root", path
);
66 else if ((sb
.st_mode
& (S_IWGRP
| S_IWOTH
)) != 0)
67 syslog(LOG_ERR
, "%s: writable by non-root", path
);