1 /*
2  * Copyright (c) 1997 - 2001 Kungliga Tekniska H�gskolan
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 13863 2004-05-25 21:46:46Z lha $");
37 
38 krb5_error_code KRB5_LIB_FUNCTION
krb5_password_key_proc(krb5_context context,krb5_enctype type,krb5_salt salt,krb5_const_pointer keyseed,krb5_keyblock ** key)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(UI_UTIL_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 KRB5_LIB_FUNCTION
krb5_get_in_tkt_with_password(krb5_context context,krb5_flags options,krb5_addresses * addrs,const krb5_enctype * etypes,const krb5_preauthtype * pre_auth_types,const char * password,krb5_ccache ccache,krb5_creds * creds,krb5_kdc_rep * ret_as_reply)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 }
91