diff options
| author | mjl <mjl@NetBSD.org> | 2000-01-12 05:02:10 +0000 |
|---|---|---|
| committer | mjl <mjl@NetBSD.org> | 2000-01-12 05:02:10 +0000 |
| commit | 142f369443ea01931a0e5ec4fcd3a9e7f13bd951 (patch) | |
| tree | dde9d36f3bed128d35df56afe0d9463bf8bc58e7 /lib/libutil/securepath.c | |
| parent | d16fa2828e8de48e0ba114254dc68f2eadb833df (diff) | |
Add necessary support routines for login.conf.
Diffstat (limited to 'lib/libutil/securepath.c')
| -rw-r--r-- | lib/libutil/securepath.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/lib/libutil/securepath.c b/lib/libutil/securepath.c new file mode 100644 index 00000000000..a5f33ce7ce0 --- /dev/null +++ b/lib/libutil/securepath.c @@ -0,0 +1,67 @@ +/* $NetBSD: securepath.c,v 1.1 2000/01/12 05:02:10 mjl Exp $ */ + +/*- + * Copyright (c) 1995,1997 Berkeley Software Design, Inc. 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 Berkeley Software Design, + * Inc. + * 4. The name of Berkeley Software Design, Inc. may not be used to endorse + * or promote products derived from this software without specific prior + * written permission. + * + * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN, INC. ``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 BERKELEY SOFTWARE DESIGN, INC. 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. + * + * BSDI login_cap.c,v 2.13 1998/02/07 03:17:05 prb Exp + */ + + +#include <sys/types.h> +#include <sys/stat.h> + +#include <util.h> +#include <syslog.h> + +int +secure_path(char *path) +{ + struct stat sb; + + /* + * If not a regular file, or is owned/writeable by someone + * other than root, quit. + */ + if (lstat(path, &sb) < 0) { + syslog(LOG_ERR, "cannot stat %s: %m", path); + return (-1); + } else if (!S_ISREG(sb.st_mode)) { + syslog(LOG_ERR, "%s: not a regular file", path); + return (-1); + } else if (sb.st_uid != 0) { + syslog(LOG_ERR, "%s: not owned by root", path); + return (-1); + } else if (sb.st_mode & (S_IWGRP | S_IWOTH)) { + syslog(LOG_ERR, "%s: writeable by non-root", path); + return (-1); + } + return (0); +} |
