xref: /freebsd/lib/libutil/auth.c (revision ad30f8e79bd1007cc2476e491bd21b4f5e389e0a)
1 /*
2  * Simple authentication database handling code.
3  *
4  * Copyright (c) 1998
5  *	Jordan Hubbard.  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  *    verbatim and that no modifications are made prior to this
13  *    point in the file.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR HIS PETS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  */
30 
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
33 
34 #include <sys/types.h>
35 #include <fcntl.h>
36 #include <libutil.h>
37 #include <paths.h>
38 #include <syslog.h>
39 #include <unistd.h>
40 
41 static properties P;
42 
43 static int
44 initauthconf(const char *path)
45 {
46     int fd;
47 
48     if (!P) {
49 	if ((fd = open(path, O_RDONLY)) < 0) {
50 	    syslog(LOG_ERR, "initauthconf: unable to open file: %s", path);
51 	    return 1;
52 	}
53 	P = properties_read(fd);
54 	close(fd);
55 	if (!P) {
56 	    syslog(LOG_ERR, "initauthconf: unable to parse file: %s", path);
57 	    return 1;
58 	}
59     }
60     return 0;
61 }
62 
63 char *
64 auth_getval(const char *name)
65 {
66     if (!P && initauthconf(_PATH_AUTHCONF))
67 	return NULL;
68     else
69 	return property_find(P, name);
70 }
71