lib/auth/afskauthlib/verify.c

   1 /*
   2  * Copyright (c) 1995, 1996, 1997 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. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed by the Kungliga Tekniska
  20  *      Högskolan and its contributors.
  21  *
  22  * 4. Neither the name of the Institute nor the names of its contributors
  23  *    may be used to endorse or promote products derived from this software
  24  *    without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  36  * SUCH DAMAGE.
  37  */
  38
  39 #ifdef HAVE_CONFIG_H
  40 #include <config.h>
  41 RCSID("$Id$");
  42 #endif
  43 #include <unistd.h>
  44 #include <sys/types.h>
  45 #include <pwd.h>
  46 #include <krb.h>
  47 #include <kafs.h>
  48 #include <roken.h>
  49
  50 /*
  51  *
  52  */
  53
  54 int
  55 afs_verify(char *name,
  56            char *password,
  57            int32_t *exp,
  58            int quiet)
  59 {
  60   int ret = 1;
  61   char lrealm[REALM_SZ];
  62   char tkt_string[MaxPathLen];
  63   struct passwd *pwd;
  64
  65   if (krb_get_lrealm (lrealm, 1) != KFAILURE &&
  66       (pwd = k_getpwnam (name)) != NULL) {
  67     snprintf (tkt_string, sizeof(tkt_string),
  68               "%s%d_%d", TKT_ROOT,
  69               (unsigned)pwd->pw_uid, (unsigned)getpid());
  70     krb_set_tkt_string (tkt_string);
  71     ret = krb_verify_user (name, "", lrealm, password, 1, NULL);
  72     if (ret == KSUCCESS) {
  73       if (k_hasafs()) {
  74         k_setpag ();
  75         krb_afslog_uid (0, 0, pwd->pw_uid);
  76       }
  77     } else if (!quiet)
  78       printf ("%s\n", krb_get_err_text (ret));
  79   }
  80   if (ret)
  81     ret = unix_verify_user (name, password);
  82
  83   return ret;
  84 }
  85
  86 char *
  87 afs_gettktstring (void)
  88 {
  89   return tkt_string ();
  90 }