1 /*
2 * Copyright (c) 2001-2004 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 "ktutil_locl.h"
35
36 RCSID("$Id$");
37
38 int
kt_rename(struct rename_options * opt,int argc,char ** argv)39 kt_rename(struct rename_options *opt, int argc, char **argv)
40 {
41 krb5_error_code ret = 0;
42 krb5_keytab_entry entry;
43 krb5_keytab keytab;
44 krb5_kt_cursor cursor;
45 krb5_principal from_princ, to_princ;
46
47 ret = krb5_parse_name(context, argv[0], &from_princ);
48 if(ret != 0) {
49 krb5_warn(context, ret, "%s", argv[0]);
50 return 1;
51 }
52
53 ret = krb5_parse_name(context, argv[1], &to_princ);
54 if(ret != 0) {
55 krb5_free_principal(context, from_princ);
56 krb5_warn(context, ret, "%s", argv[1]);
57 return 1;
58 }
59
60 if((keytab = ktutil_open_keytab()) == NULL) {
61 krb5_free_principal(context, from_princ);
62 krb5_free_principal(context, to_princ);
63 return 1;
64 }
65
66 ret = krb5_kt_start_seq_get(context, keytab, &cursor);
67 if(ret) {
68 krb5_kt_close(context, keytab);
69 krb5_free_principal(context, from_princ);
70 krb5_free_principal(context, to_princ);
71 return 1;
72 }
73 while(1) {
74 ret = krb5_kt_next_entry(context, keytab, &entry, &cursor);
75 if(ret != 0) {
76 if(ret != KRB5_CC_END && ret != KRB5_KT_END)
77 krb5_warn(context, ret, "getting entry from keytab");
78 else
79 ret = 0;
80 break;
81 }
82 if(krb5_principal_compare(context, entry.principal, from_princ)) {
83 krb5_free_principal(context, entry.principal);
84 entry.principal = to_princ;
85 ret = krb5_kt_add_entry(context, keytab, &entry);
86 if(ret) {
87 entry.principal = NULL;
88 krb5_kt_free_entry(context, &entry);
89 krb5_warn(context, ret, "adding entry");
90 break;
91 }
92 if (opt->delete_flag) {
93 entry.principal = from_princ;
94 ret = krb5_kt_remove_entry(context, keytab, &entry);
95 if(ret) {
96 entry.principal = NULL;
97 krb5_kt_free_entry(context, &entry);
98 krb5_warn(context, ret, "removing entry");
99 break;
100 }
101 }
102 entry.principal = NULL;
103 }
104 krb5_kt_free_entry(context, &entry);
105 }
106 krb5_kt_end_seq_get(context, keytab, &cursor);
107
108 krb5_free_principal(context, from_princ);
109 krb5_free_principal(context, to_princ);
110
111 return ret != 0;
112 }
113
114