crypto/dist/heimdal/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("$Heimdal: get_in_tkt_pw.c 13863 2004-05-25 21:46:46Z lha $"
  37         "$NetBSD$");
  38
  39 krb5_error_code KRB5_LIB_FUNCTION
  40 krb5_password_key_proc (krb5_context context,
  41                         krb5_enctype type,
  42                         krb5_salt salt,
  43                         krb5_const_pointer keyseed,
  44                         krb5_keyblock **key)
  45 {
  46     krb5_error_code ret;
  47     const char *password = (const char *)keyseed;
  48     char buf[BUFSIZ];
  49
  50     *key = malloc (sizeof (**key));
  51     if (*key == NULL) {
  52         krb5_set_error_string(context, "malloc: out of memory");
  53         return ENOMEM;
  54     }
  55     if (password == NULL) {
  56         if(UI_UTIL_read_pw_string (buf, sizeof(buf), "Password: ", 0)) {
  57             free (*key);
  58             krb5_clear_error_string(context);
  59             return KRB5_LIBOS_PWDINTR;
  60         }
  61         password = buf;
  62     }
  63     ret = krb5_string_to_key_salt (context, type, password, salt, *key);
  64     memset (buf, 0, sizeof(buf));
  65     return ret;
  66 }
  67
  68 krb5_error_code KRB5_LIB_FUNCTION
  69 krb5_get_in_tkt_with_password (krb5_context context,
  70                                krb5_flags options,
  71                                krb5_addresses *addrs,
  72                                const krb5_enctype *etypes,
  73                                const krb5_preauthtype *pre_auth_types,
  74                                const char *password,
  75                                krb5_ccache ccache,
  76                                krb5_creds *creds,
  77                                krb5_kdc_rep *ret_as_reply)
  78 {
  79      return krb5_get_in_tkt (context,
  80                              options,
  81                              addrs,
  82                              etypes,
  83                              pre_auth_types,
  84                              krb5_password_key_proc,
  85                              password,
  86                              NULL,
  87                              NULL,
  88                              creds,
  89                              ccache,
  90                              ret_as_reply);
  91 }