del_enctype.c revision 72445 
1/*
2 * Copyright (c) 1999-2000 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 "kadmin_locl.h"
35
36RCSID("$Id: del_enctype.c,v 1.6 2000/09/10 19:17:23 joda Exp $");
37
38/*
39 * del_enctype principal enctypes...
40 */
41
42static struct getargs args[] = {
43    { "help", 'h', arg_flag, NULL }
44};
45
46static int num_args = sizeof(args) / sizeof(args[0]);
47
48static void
49usage(void)
50{
51    arg_printusage (args, num_args, "del_enctype", "principal enctypes...");
52}
53
54
55int
56del_enctype(int argc, char **argv)
57{
58    int optind = 0;
59    int help_flag = 0;
60
61    kadm5_principal_ent_rec princ;
62    krb5_principal princ_ent = NULL;
63    krb5_error_code ret;
64    const char *princ_name;
65    int i, j, k;
66    krb5_key_data *new_key_data;
67    int n_etypes;
68    krb5_enctype *etypes;
69
70    args[0].value = &help_flag;
71
72    if(getarg(args, num_args, argc, argv, &optind)) {
73	usage ();
74	return 0;
75    }
76    if(argc - optind < 3 || help_flag) {
77	usage ();
78	return 0;
79    }
80
81    memset (&princ, 0, sizeof(princ));
82    princ_name = argv[1];
83    n_etypes   = argc - 2;
84    etypes     = malloc (n_etypes * sizeof(*etypes));
85    if (etypes == NULL) {
86	krb5_warnx (context, "out of memory");
87	return 0;
88    }
89    for (i = 0; i < n_etypes; ++i) {
90	ret = krb5_string_to_enctype (context, argv[i + 2], &etypes[i]);
91	if (ret) {
92	    krb5_warnx (context, "bad enctype `%s'", argv[i + 2]);
93	    goto out2;
94	}
95    }
96
97    ret = krb5_parse_name(context, princ_name, &princ_ent);
98    if (ret) {
99	krb5_warn (context, ret, "krb5_parse_name %s", princ_name);
100	goto out2;
101    }
102
103    ret = kadm5_get_principal(kadm_handle, princ_ent, &princ,
104			      KADM5_PRINCIPAL | KADM5_KEY_DATA);
105    if (ret) {
106	krb5_free_principal (context, princ_ent);
107	krb5_warnx (context, "no such principal: %s", princ_name);
108	goto out2;
109    }
110
111    new_key_data   = malloc(princ.n_key_data * sizeof(*new_key_data));
112    if (new_key_data == NULL) {
113	krb5_warnx (context, "out of memory");
114	goto out;
115    }
116
117    for (i = 0, j = 0; i < princ.n_key_data; ++i) {
118	krb5_key_data *key = &princ.key_data[i];
119	int docopy = 1;
120
121	for (k = 0; k < n_etypes; ++k)
122	    if (etypes[k] == key->key_data_type[0]) {
123		docopy = 0;
124		break;
125	    }
126	if (docopy) {
127	    new_key_data[j++] = *key;
128	} else {
129	    int16_t ignore = 1;
130
131	    kadm5_free_key_data (kadm_handle, &ignore, key);
132	}
133    }
134
135    free (princ.key_data);
136    princ.n_key_data = j;
137    princ.key_data   = new_key_data;
138
139    ret = kadm5_modify_principal (kadm_handle, &princ, KADM5_KEY_DATA);
140    if (ret)
141	krb5_warn(context, ret, "kadm5_modify_principal");
142out:
143    krb5_free_principal (context, princ_ent);
144    kadm5_free_principal_ent(kadm_handle, &princ);
145out2:
146    free (etypes);
147    return 0;
148}
149