1/*	$NetBSD: get_princs_s.c,v 1.2 2017/01/28 21:31:49 christos Exp $	*/
2
3/*
4 * Copyright (c) 1997, 1998, 1999 Kungliga Tekniska H��gskolan
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 "kadm5_locl.h"
37
38__RCSID("$NetBSD: get_princs_s.c,v 1.2 2017/01/28 21:31:49 christos Exp $");
39
40struct foreach_data {
41    const char *exp;
42    char *exp2;
43    char **princs;
44    int count;
45};
46
47static krb5_error_code
48add_princ(struct foreach_data *d, char *princ)
49{
50    char **tmp;
51    tmp = realloc(d->princs, (d->count + 1) * sizeof(*tmp));
52    if(tmp == NULL)
53	return ENOMEM;
54    d->princs = tmp;
55    d->princs[d->count++] = princ;
56    return 0;
57}
58
59static krb5_error_code
60foreach(krb5_context context, HDB *db, hdb_entry_ex *ent, void *data)
61{
62    struct foreach_data *d = data;
63    char *princ;
64    krb5_error_code ret;
65    ret = krb5_unparse_name(context, ent->entry.principal, &princ);
66    if(ret)
67	return ret;
68    if(d->exp){
69	if(fnmatch(d->exp, princ, 0) == 0 || fnmatch(d->exp2, princ, 0) == 0)
70	    ret = add_princ(d, princ);
71	else
72	    free(princ);
73    }else{
74	ret = add_princ(d, princ);
75    }
76    if(ret)
77	free(princ);
78    return ret;
79}
80
81kadm5_ret_t
82kadm5_s_get_principals(void *server_handle,
83		       const char *expression,
84		       char ***princs,
85		       int *count)
86{
87    struct foreach_data d;
88    kadm5_server_context *context = server_handle;
89    kadm5_ret_t ret;
90
91    if (!context->keep_open) {
92	ret = context->db->hdb_open(context->context, context->db, O_RDONLY, 0);
93	if (ret) {
94	    krb5_warn(context->context, ret, "opening database");
95	    return ret;
96	}
97    }
98    d.exp = expression;
99    {
100	krb5_realm r;
101	int aret;
102
103	krb5_get_default_realm(context->context, &r);
104	aret = asprintf(&d.exp2, "%s@%s", expression, r);
105	free(r);
106	if (aret == -1 || d.exp2 == NULL) {
107	    ret = ENOMEM;
108            goto out;
109	}
110    }
111    d.princs = NULL;
112    d.count = 0;
113    ret = hdb_foreach(context->context, context->db, HDB_F_ADMIN_DATA, foreach, &d);
114
115    if (ret == 0)
116	ret = add_princ(&d, NULL);
117    if (ret == 0){
118	*princs = d.princs;
119	*count = d.count - 1;
120    } else
121	kadm5_free_name_list(context, d.princs, &d.count);
122    free(d.exp2);
123 out:
124    if (!context->keep_open)
125	context->db->hdb_close(context->context, context->db);
126    return _kadm5_error_code(ret);
127}
128