1 /* ====================================================================
2 * The Apache Software License, Version 1.1
4 * Copyright (c) 2001-2002 The Apache Software Foundation. All rights
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
19 * 3. The end-user documentation included with the redistribution,
20 * if any, must include the following acknowledgment:
21 * "This product includes software developed by the
22 * Apache Software Foundation (http://www.apache.org/)."
23 * Alternately, this acknowledgment may appear in the software itself,
24 * if and wherever such third-party acknowledgments normally appear.
26 * 4. The names "Apache" and "Apache Software Foundation" must
27 * not be used to endorse or promote products derived from this
28 * software without prior written permission. For written
29 * permission, please contact apache@apache.org.
31 * 5. Products derived from this software may not be called "Apache",
32 * nor may "Apache" appear in their name, without prior written
33 * permission of the Apache Software Foundation.
35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
37 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
38 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
42 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
44 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
45 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
47 * ====================================================================
49 * This software consists of voluntary contributions made by many
50 * individuals on behalf of the Apache Software Foundation. For more
51 * information on the Apache Software Foundation, please see
52 * <http://www.apache.org/>.
56 * Given one or more group identifers on the command line (e.g.,
57 * "httpd" or "#-1"), figure out whether they'll be valid for
58 * the server to use at run-time.
60 * If a groupname isn't found, or we can't setgid() to it, return
61 * -1. If all groups are valid, return 0.
63 * This may need to be run as the superuser for the setgid() to
64 * succeed; running it as any other user may result in a false
68 #include "ap_config.h"
75 #if APR_HAVE_SYS_TYPES_H
76 #include <sys/types.h>
85 int main(int argc, char *argv[])
91 struct group fake_grent;
97 for (i = 1; i < argc; ++i) {
102 * If it's from a 'Group #-1' statement, get the numeric value
103 * and skip the group lookup stuff.
107 fake_grent.gr_gid = gid;
111 grent = getgrnam(arg);
115 * A NULL return means no such group was found, so we're done
119 fprintf(stderr, "%s: group '%s' not found\n", argv[0], arg);
126 * See if we can switch to the numeric GID we have. If so,
127 * all well and good; if not, well..
132 fprintf(stderr, "%s: invalid group '%s'\n", argv[0], arg);
139 * Worst-case return value.
146 * c-file-style: "bsd"