1/*
2 * Copyright (c) 1997-2004 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#include <rtbl.h>
36
37static int
38do_list(struct list_options *opt, const char *keytab_str)
39{
40    krb5_error_code ret;
41    krb5_keytab keytab;
42    krb5_keytab_entry entry;
43    krb5_kt_cursor cursor;
44    rtbl_t table;
45
46    /* XXX specialcase the ANY type */
47    if(strncasecmp(keytab_str, "ANY:", 4) == 0) {
48	int flag = 0;
49	char buf[1024];
50	keytab_str += 4;
51	ret = 0;
52	while (strsep_copy((const char**)&keytab_str, ",",
53			   buf, sizeof(buf)) != -1) {
54	    if(flag)
55		printf("\n");
56	    if(do_list(opt, buf))
57		ret = 1;
58	    flag = 1;
59	}
60	return ret;
61    }
62
63    ret = krb5_kt_resolve(context, keytab_str, &keytab);
64    if (ret) {
65	krb5_warn(context, ret, "resolving keytab %s", keytab_str);
66	return ret;
67    }
68
69    ret = krb5_kt_start_seq_get(context, keytab, &cursor);
70    if(ret) {
71	krb5_warn(context, ret, "krb5_kt_start_seq_get %s", keytab_str);
72	krb5_kt_close(context, keytab);
73	return ret;
74    }
75
76    printf ("%s:\n\n", keytab_str);
77
78    table = rtbl_create();
79    rtbl_add_column_by_id(table, 0, "Vno", RTBL_ALIGN_RIGHT);
80    rtbl_add_column_by_id(table, 1, "Type", 0);
81    rtbl_add_column_by_id(table, 2, "Principal", 0);
82    if (opt->timestamp_flag)
83	rtbl_add_column_by_id(table, 3, "Date", 0);
84    if(opt->keys_flag)
85	rtbl_add_column_by_id(table, 4, "Key", 0);
86    rtbl_add_column_by_id(table, 5, "Aliases", 0);
87    rtbl_set_separator(table, "  ");
88
89    while(krb5_kt_next_entry(context, keytab, &entry, &cursor) == 0){
90	char buf[1024], *s;
91
92	snprintf(buf, sizeof(buf), "%d", entry.vno);
93	rtbl_add_column_entry_by_id(table, 0, buf);
94
95	ret = krb5_enctype_to_string(context,
96				     entry.keyblock.keytype, &s);
97	if (ret != 0) {
98	    snprintf(buf, sizeof(buf), "unknown (%d)", entry.keyblock.keytype);
99	    rtbl_add_column_entry_by_id(table, 1, buf);
100	} else {
101	    rtbl_add_column_entry_by_id(table, 1, s);
102	    free(s);
103	}
104
105	krb5_unparse_name_fixed(context, entry.principal, buf, sizeof(buf));
106	rtbl_add_column_entry_by_id(table, 2, buf);
107
108	if (opt->timestamp_flag) {
109	    krb5_format_time(context, entry.timestamp, buf,
110			     sizeof(buf), FALSE);
111	    rtbl_add_column_entry_by_id(table, 3, buf);
112	}
113	if(opt->keys_flag) {
114	    size_t i;
115	    s = malloc(2 * entry.keyblock.keyvalue.length + 1);
116	    if (s == NULL) {
117		krb5_warnx(context, "malloc failed");
118		ret = ENOMEM;
119		goto out;
120	    }
121	    for(i = 0; i < entry.keyblock.keyvalue.length; i++)
122		snprintf(s + 2 * i, 3, "%02x",
123			 ((unsigned char*)entry.keyblock.keyvalue.data)[i]);
124	    rtbl_add_column_entry_by_id(table, 4, s);
125	    free(s);
126	}
127	if (entry.aliases) {
128	    unsigned int i;
129	    struct rk_strpool *p = NULL;
130
131	    for (i = 0; i< entry.aliases->len; i++) {
132		krb5_unparse_name_fixed(context, entry.principal, buf, sizeof(buf));
133		rk_strpoolprintf(p, "%s%s", buf,
134				 i + 1 < entry.aliases->len ? ", " : "");
135
136	    }
137	    rtbl_add_column_entry_by_id(table, 5, rk_strpoolcollect(p));
138	}
139
140	krb5_kt_free_entry(context, &entry);
141    }
142    ret = krb5_kt_end_seq_get(context, keytab, &cursor);
143    rtbl_format(table, stdout);
144
145out:
146    rtbl_destroy(table);
147
148    krb5_kt_close(context, keytab);
149    return ret;
150}
151
152int
153kt_list(struct list_options *opt, int argc, char **argv)
154{
155    krb5_error_code ret;
156    char kt[1024];
157
158    if(verbose_flag)
159	opt->timestamp_flag = 1;
160
161    if (keytab_string == NULL) {
162	if((ret = krb5_kt_default_name(context, kt, sizeof(kt))) != 0) {
163	    krb5_warn(context, ret, "getting default keytab name");
164	    return 1;
165	}
166	keytab_string = kt;
167    }
168    return do_list(opt, keytab_string) != 0;
169}
170