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/*
* Copyright (c) 1999-2016 Apple Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this
* file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
#include <stdio.h>
#include <security/pam_appl.h>
#include <security/openpam.h> /* for openpam_ttyconv() */
#include "passwd.h"
extern char* progname;
static pam_handle_t *pamh;
static struct pam_conv pamc;
//-------------------------------------------------------------------------------------
// pam_check_passwd
//-------------------------------------------------------------------------------------
int
pam_check_passwd(char* uname)
{
int retval = PAM_SUCCESS;
/* Initialize PAM. */
pamc.conv = &openpam_ttyconv;
pam_start(progname, uname, &pamc, &pamh);
printf("Checking password for %s.\n", uname);
/* Authenticate. */
if (PAM_SUCCESS != (retval = pam_authenticate(pamh, 0)))
goto pamerr;
/* Authorize. */
if (PAM_SUCCESS != (retval = pam_acct_mgmt(pamh, 0)) && PAM_NEW_AUTHTOK_REQD != retval)
goto pamerr;
/* Change the password. */
if (PAM_NEW_AUTHTOK_REQD == retval && PAM_SUCCESS != (retval = pam_chauthtok(pamh, 0)))
goto pamerr;
/* Set the credentials. */
if (PAM_SUCCESS != (retval = pam_setcred(pamh, PAM_ESTABLISH_CRED)))
goto pamerr;
/* Open the session. */
if (PAM_SUCCESS != (retval = pam_open_session(pamh, 0)))
goto pamerr;
/* Close the session. */
if (PAM_SUCCESS != (retval = pam_close_session(pamh, 0)))
goto pamerr;
pamerr:
/* Print an error, if needed. */
if (PAM_SUCCESS != retval)
fprintf(stderr, "Sorry\n");
/* Terminate PAM. */
pam_end(pamh, retval);
return retval;
}
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