1/* MODULE: auth_getpwent */
2
3/* COPYRIGHT
4 * Copyright (c) 1997-2000 Messaging Direct Ltd.
5 * 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 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY MESSAGING DIRECT LTD. ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL MESSAGING DIRECT LTD. OR
20 * ITS EMPLOYEES OR AGENTS BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
23 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
25 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
26 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
27 * DAMAGE.
28 * END COPYRIGHT */
29
30/* SYNOPSIS
31 * crypt(3) based passwd file validation
32 * END SYNOPSIS */
33
34#ifdef __GNUC__
35#ident "$Id: auth_getpwent.c,v 1.9 2006/01/24 00:16:03 snsimon Exp $"
36#endif
37
38/* PUBLIC DEPENDENCIES */
39#include "mechanisms.h"
40#include <unistd.h>
41#include <string.h>
42#include <pwd.h>
43
44# ifdef WITH_DES
45#  ifdef WITH_SSL_DES
46#   include <openssl/des.h>
47#  else
48#   include <des.h>
49#  endif /* WITH_SSL_DES */
50# endif /* WITH_DES */
51
52#ifdef HAVE_CRYPT_H
53#include <crypt.h>
54#endif
55/* END PUBLIC DEPENDENCIES */
56
57#define RETURN(x) return strdup(x)
58
59/* FUNCTION: auth_getpwent */
60
61char *					/* R: allocated response string */
62auth_getpwent (
63  /* PARAMETERS */
64  const char *login,			/* I: plaintext authenticator */
65  const char *password,			/* I: plaintext password */
66  const char *service __attribute__((unused)),
67  const char *realm __attribute__((unused))
68  /* END PARAMETERS */
69  )
70{
71    /* VARIABLES */
72    struct passwd *pw;			/* pointer to passwd file entry */
73    /* END VARIABLES */
74
75    pw = getpwnam(login);
76    endpwent();
77
78    if (pw == NULL) {
79	RETURN("NO");
80    }
81
82    if (strcmp(pw->pw_passwd, (const char *)crypt(password, pw->pw_passwd))) {
83	RETURN("NO");
84    }
85
86    RETURN("OK");
87}
88
89/* END FUNCTION: auth_getpwent */
90
91/* END MODULE: auth_getpwent */
92