crypto/heimdal-0.6.3/lib/krb5/get_in_tkt_pw.c

   1 /*
   2  * Copyright (c) 1997 - 2001 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 "krb5_locl.h"
  35
  36 RCSID("$Id: get_in_tkt_pw.c,v 1.16 2001/05/14 06:14:48 assar Exp $");
  37
  38 krb5_error_code
  39 krb5_password_key_proc (krb5_context context,
  40                         krb5_enctype type,
  41                         krb5_salt salt,
  42                         krb5_const_pointer keyseed,
  43                         krb5_keyblock **key)
  44 {
  45     krb5_error_code ret;
  46     const char *password = (const char *)keyseed;
  47     char buf[BUFSIZ];
  48
  49     *key = malloc (sizeof (**key));
  50     if (*key == NULL) {
  51         krb5_set_error_string(context, "malloc: out of memory");
  52         return ENOMEM;
  53     }
  54     if (password == NULL) {
  55         if(des_read_pw_string (buf, sizeof(buf), "Password: ", 0)) {
  56             free (*key);
  57             krb5_clear_error_string(context);
  58             return KRB5_LIBOS_PWDINTR;
  59         }
  60         password = buf;
  61     }
  62     ret = krb5_string_to_key_salt (context, type, password, salt, *key);
  63     memset (buf, 0, sizeof(buf));
  64     return ret;
  65 }
  66
  67 krb5_error_code
  68 krb5_get_in_tkt_with_password (krb5_context context,
  69                                krb5_flags options,
  70                                krb5_addresses *addrs,
  71                                const krb5_enctype *etypes,
  72                                const krb5_preauthtype *pre_auth_types,
  73                                const char *password,
  74                                krb5_ccache ccache,
  75                                krb5_creds *creds,
  76                                krb5_kdc_rep *ret_as_reply)
  77 {
  78      return krb5_get_in_tkt (context,
  79                              options,
  80                              addrs,
  81                              etypes,
  82                              pre_auth_types,
  83                              krb5_password_key_proc,
  84                              password,
  85                              NULL,
  86                              NULL,
  87                              creds,
  88                              ccache,
  89                              ret_as_reply);
  90 }