crypto/dist/heimdal/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("$Heimdal: osfc2.c 9704 2001-02-20 01:44:56Z assar $"
  36         "$NetBSD$");
  37
  38 int
  39 do_osfc2_magic(uid_t uid)
  40 {
  41 #ifdef HAVE_OSFC2
  42     struct es_passwd *epw;
  43     char *argv[2];
  44
  45     /* fake */
  46     argv[0] = (char*)getprogname();
  47     argv[1] = NULL;
  48     set_auth_parameters(1, argv);
  49
  50     epw = getespwuid(uid);
  51     if(epw == NULL) {
  52         syslog(LOG_AUTHPRIV|LOG_NOTICE,
  53                "getespwuid failed for %d", uid);
  54         printf("Sorry.\n");
  55         return 1;
  56     }
  57     /* We don't check for auto-retired, foo-retired,
  58        bar-retired, or any other kind of retired accounts
  59        here; neither do we check for time-locked accounts, or
  60        any other kind of serious C2 mumbo-jumbo. We do,
  61        however, call setluid, since failing to do so is not
  62        very good (take my word for it). */
  63
  64     if(!epw->uflg->fg_uid) {
  65         syslog(LOG_AUTHPRIV|LOG_NOTICE,
  66                "attempted login by %s (has no uid)", epw->ufld->fd_name);
  67         printf("Sorry.\n");
  68         return 1;
  69     }
  70     setluid(epw->ufld->fd_uid);
  71     if(getluid() != epw->ufld->fd_uid) {
  72         syslog(LOG_AUTHPRIV|LOG_NOTICE,
  73                "failed to set LUID for %s (%d)",
  74                epw->ufld->fd_name, epw->ufld->fd_uid);
  75         printf("Sorry.\n");
  76         return 1;
  77     }
  78 #endif /* HAVE_OSFC2 */
  79     return 0;
  80 }