crypto/heimdal-0.6.3/appl/login/osfc2.c

   1 /*
   2  * Copyright (c) 1998 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include "login_locl.h"
  35 RCSID("$Id: osfc2.c,v 1.4 2001/02/20 01:44:46 assar Exp $");
  36
  37 int
  38 do_osfc2_magic(uid_t uid)
  39 {
  40 #ifdef HAVE_OSFC2
  41     struct es_passwd *epw;
  42     char *argv[2];
  43
  44     /* fake */
  45     argv[0] = (char*)getprogname();
  46     argv[1] = NULL;
  47     set_auth_parameters(1, argv);
  48
  49     epw = getespwuid(uid);
  50     if(epw == NULL) {
  51         syslog(LOG_AUTHPRIV|LOG_NOTICE,
  52                "getespwuid failed for %d", uid);
  53         printf("Sorry.\n");
  54         return 1;
  55     }
  56     /* We don't check for auto-retired, foo-retired,
  57        bar-retired, or any other kind of retired accounts
  58        here; neither do we check for time-locked accounts, or
  59        any other kind of serious C2 mumbo-jumbo. We do,
  60        however, call setluid, since failing to do so is not
  61        very good (take my word for it). */
  62
  63     if(!epw->uflg->fg_uid) {
  64         syslog(LOG_AUTHPRIV|LOG_NOTICE,
  65                "attempted login by %s (has no uid)", epw->ufld->fd_name);
  66         printf("Sorry.\n");
  67         return 1;
  68     }
  69     setluid(epw->ufld->fd_uid);
  70     if(getluid() != epw->ufld->fd_uid) {
  71         syslog(LOG_AUTHPRIV|LOG_NOTICE,
  72                "failed to set LUID for %s (%d)",
  73                epw->ufld->fd_name, epw->ufld->fd_uid);
  74         printf("Sorry.\n");
  75         return 1;
  76     }
  77 #endif /* HAVE_OSFC2 */
  78     return 0;
  79 }