lib/libutil/auth.c

   1 /*
   2  *
   3  * Simple authentication database handling code.
   4  *
   5  * Copyright (c) 1998
   6  *      Jordan Hubbard.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer,
  13  *    verbatim and that no modifications are made prior to this
  14  *    point in the file.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR HIS PETS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  *
  31  * $FreeBSD: src/lib/libutil/auth.c,v 1.3.6.1 2001/03/05 06:29:52 kris Exp $
  32  *
  33  */
  34
  35 #include <sys/types.h>
  36
  37 #include <fcntl.h>
  38 #include <paths.h>
  39 #include <syslog.h>
  40 #include <unistd.h>
  41 #include <libutil.h>
  42
  43 static properties P;
  44
  45 static int
  46 initauthconf(const char *path)
  47 {
  48     int fd;
  49
  50     if (!P) {
  51         if ((fd = open(path, O_RDONLY)) < 0) {
  52             syslog(LOG_ERR, "initauthconf: unable to open file: %s", path);
  53             return 1;
  54         }
  55         P = properties_read(fd);
  56         close(fd);
  57         if (!P) {
  58             syslog(LOG_ERR, "initauthconf: unable to parse file: %s", path);
  59             return 1;
  60         }
  61     }
  62     return 0;
  63 }
  64
  65 char *
  66 auth_getval(const char *name)
  67 {
  68     if (!P && initauthconf(_PATH_AUTHCONF))
  69         return NULL;
  70     else
  71         return property_find(P, name);
  72 }