usr/src/lib/passwdutil/__check_history.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 #include <nsswitch.h>
  30
  31 #include "passwdutil.h"
  32
  33 /*
  34  *      __check_history - check if a user's new password is in the user's
  35  *              old password history.
  36  *
  37  *      Entry
  38  *              user = username.
  39  *              passwd = new clear text password.
  40  *              rep = repositories to check.
  41  *
  42  *      Exit
  43  *              PWU_SUCCESS, passwd found in user's old password history.
  44  *                      The caller should only be interested and fail if
  45  *                      PWU_SUCCESS is returned.
  46  *              PWU_NOT_FOUND, passwd not in user's old password history.
  47  *              PWU_errors, PWU_ errors from other routines.
  48  *
  49  */
  50 int
  51 __check_history(char *user, char *passwd, pwu_repository_t *rep)
  52 {
  53         int repositories;
  54         int i;
  55         int res;
  56
  57         repositories = get_ns(rep, PWU_READ);
  58
  59         if (repositories == 0)
  60                 return (PWU_SYSTEM_ERROR);
  61
  62         if (repositories == REP_ERANGE)
  63                 return (PWU_REPOSITORY_ERROR);
  64
  65         i = REP_FILES;
  66         res = PWU_NOT_FOUND;
  67
  68         /* Loop over repositories until the user is found */
  69         while ((i <= REP_LAST) && (res == PWU_NOT_FOUND)) {
  70                 if (repositories & i)
  71                         if (rops[i]->checkhistory != NULL)
  72                                 res = rops[i]->checkhistory(user, passwd, rep);
  73                 i <<= 1;
  74         }
  75         return (res);
  76 }