2 Unix SMB/CIFS implementation.
3 kerberos utility library
4 Copyright (C) Andrew Tridgell 2001
5 Copyright (C) Remus Koos 2001
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 we use a prompter to avoid a crash bug in the kerberos libs when
29 dealing with empty passwords
30 this prompter is just a string copy ...
32 static krb5_error_code
33 kerb_prompter(krb5_context ctx
, void *data
,
37 krb5_prompt prompts
[])
39 if (num_prompts
== 0) return 0;
41 memset(prompts
[0].reply
->data
, 0, prompts
[0].reply
->length
);
42 if (prompts
[0].reply
->length
> 0) {
44 strncpy(prompts
[0].reply
->data
, data
, prompts
[0].reply
->length
-1);
45 prompts
[0].reply
->length
= strlen(prompts
[0].reply
->data
);
47 prompts
[0].reply
->length
= 0;
54 simulate a kinit, putting the tgt in the default cache location
57 int kerberos_kinit_password(const char *principal
, const char *password
, int time_offset
)
60 krb5_error_code code
= 0;
65 if ((code
= krb5_init_context(&ctx
)))
68 if (time_offset
!= 0) {
69 krb5_set_real_time(ctx
, time(NULL
) + time_offset
, 0);
72 if ((code
= krb5_cc_default(ctx
, &cc
))) {
73 krb5_free_context(ctx
);
77 if ((code
= krb5_parse_name(ctx
, principal
, &me
))) {
78 krb5_free_context(ctx
);
82 if ((code
= krb5_get_init_creds_password(ctx
, &my_creds
, me
, NULL
,
84 password
, 0, NULL
, NULL
))) {
85 krb5_free_principal(ctx
, me
);
86 krb5_free_context(ctx
);
90 if ((code
= krb5_cc_initialize(ctx
, cc
, me
))) {
91 krb5_free_cred_contents(ctx
, &my_creds
);
92 krb5_free_principal(ctx
, me
);
93 krb5_free_context(ctx
);
97 if ((code
= krb5_cc_store_cred(ctx
, cc
, &my_creds
))) {
98 krb5_cc_close(ctx
, cc
);
99 krb5_free_cred_contents(ctx
, &my_creds
);
100 krb5_free_principal(ctx
, me
);
101 krb5_free_context(ctx
);
105 krb5_cc_close(ctx
, cc
);
106 krb5_free_cred_contents(ctx
, &my_creds
);
107 krb5_free_principal(ctx
, me
);
108 krb5_free_context(ctx
);
115 /* run kinit to setup our ccache */
116 int ads_kinit_password(ADS_STRUCT
*ads
)
121 if (asprintf(&s
, "%s@%s", ads
->auth
.user_name
, ads
->auth
.realm
) == -1) {
122 return KRB5_CC_NOMEM
;
125 if (!ads
->auth
.password
) {
126 return KRB5_LIBOS_CANTREADPWD
;
129 ret
= kerberos_kinit_password(s
, ads
->auth
.password
, ads
->auth
.time_offset
);
132 DEBUG(0,("kerberos_kinit_password %s failed: %s\n",
133 s
, error_message(ret
)));