1/*	$NetBSD: rename.c,v 1.1.1.1 2011/04/13 18:14:32 elric Exp $	*/
2
3/*
4 * Copyright (c) 2001-2004 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36#include "ktutil_locl.h"
37
38__RCSID("$NetBSD: rename.c,v 1.1.1.1 2011/04/13 18:14:32 elric Exp $");
39
40int
41kt_rename(struct rename_options *opt, int argc, char **argv)
42{
43    krb5_error_code ret = 0;
44    krb5_keytab_entry entry;
45    krb5_keytab keytab;
46    krb5_kt_cursor cursor;
47    krb5_principal from_princ, to_princ;
48
49    ret = krb5_parse_name(context, argv[0], &from_princ);
50    if(ret != 0) {
51	krb5_warn(context, ret, "%s", argv[0]);
52	return 1;
53    }
54
55    ret = krb5_parse_name(context, argv[1], &to_princ);
56    if(ret != 0) {
57	krb5_free_principal(context, from_princ);
58	krb5_warn(context, ret, "%s", argv[1]);
59	return 1;
60    }
61
62    if((keytab = ktutil_open_keytab()) == NULL) {
63	krb5_free_principal(context, from_princ);
64	krb5_free_principal(context, to_princ);
65	return 1;
66    }
67
68    ret = krb5_kt_start_seq_get(context, keytab, &cursor);
69    if(ret) {
70	krb5_kt_close(context, keytab);
71	krb5_free_principal(context, from_princ);
72	krb5_free_principal(context, to_princ);
73	return 1;
74    }
75    while(1) {
76	ret = krb5_kt_next_entry(context, keytab, &entry, &cursor);
77	if(ret != 0) {
78	    if(ret != KRB5_CC_END && ret != KRB5_KT_END)
79		krb5_warn(context, ret, "getting entry from keytab");
80	    else
81		ret = 0;
82	    break;
83	}
84	if(krb5_principal_compare(context, entry.principal, from_princ)) {
85	    krb5_free_principal(context, entry.principal);
86	    entry.principal = to_princ;
87	    ret = krb5_kt_add_entry(context, keytab, &entry);
88	    if(ret) {
89		entry.principal = NULL;
90		krb5_kt_free_entry(context, &entry);
91		krb5_warn(context, ret, "adding entry");
92		break;
93	    }
94	    if (opt->delete_flag) {
95		entry.principal = from_princ;
96		ret = krb5_kt_remove_entry(context, keytab, &entry);
97		if(ret) {
98		    entry.principal = NULL;
99		    krb5_kt_free_entry(context, &entry);
100		    krb5_warn(context, ret, "removing entry");
101		    break;
102		}
103	    }
104	    entry.principal = NULL;
105	}
106	krb5_kt_free_entry(context, &entry);
107    }
108    krb5_kt_end_seq_get(context, keytab, &cursor);
109
110    krb5_free_principal(context, from_princ);
111    krb5_free_principal(context, to_princ);
112
113    return ret != 0;
114}
115
116