1/*
2 * Copyright (c) 1999-2008 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23#include <stdio.h>
24
25#include <security/pam_appl.h>
26#include <security/openpam.h>	/* for openpam_ttyconv() */
27
28extern char* progname;
29static pam_handle_t *pamh;
30static struct pam_conv pamc;
31
32//-------------------------------------------------------------------------------------
33//	pam_check_passwd
34//-------------------------------------------------------------------------------------
35
36int pam_check_passwd(char* uname)
37{
38	int retval = PAM_SUCCESS;
39
40	/* Initialize PAM. */
41	pamc.conv = &openpam_ttyconv;
42	pam_start(progname, uname, &pamc, &pamh);
43
44	printf("Checking password for %s.\n", uname);
45
46	/* Authenticate. */
47	if (PAM_SUCCESS != (retval = pam_authenticate(pamh, 0)))
48		goto pamerr;
49
50	/* Authorize. */
51	if (PAM_SUCCESS != (retval = pam_acct_mgmt(pamh, 0)) && PAM_NEW_AUTHTOK_REQD != retval)
52		goto pamerr;
53
54	/* Change the password. */
55	if (PAM_NEW_AUTHTOK_REQD == retval && PAM_SUCCESS != (retval = pam_chauthtok(pamh, 0)))
56		goto pamerr;
57
58	/* Set the credentials. */
59	if (PAM_SUCCESS != (retval = pam_setcred(pamh, PAM_ESTABLISH_CRED)))
60		goto pamerr;
61
62	/* Open the session. */
63	if (PAM_SUCCESS != (retval = pam_open_session(pamh, 0)))
64		goto pamerr;
65
66	/* Close the session. */
67	if (PAM_SUCCESS != (retval = pam_close_session(pamh, 0)))
68		goto pamerr;
69
70pamerr:
71	/* Print an error, if needed. */
72	if (PAM_SUCCESS != retval)
73		fprintf(stderr, "Sorry\n");
74
75	/* Terminate PAM. */
76	pam_end(pamh, retval);
77	return retval;
78}
79