1 /*	$NetBSD: get_princs_s.c,v 1.1.1.1 2011/04/13 18:15:29 elric Exp $	*/
2 
3 /*
4  * Copyright (c) 1997, 1998, 1999 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 "kadm5_locl.h"
37 
38 __RCSID("$NetBSD: get_princs_s.c,v 1.1.1.1 2011/04/13 18:15:29 elric Exp $");
39 
40 struct foreach_data {
41     const char *exp;
42     char *exp2;
43     char **princs;
44     int count;
45 };
46 
47 static krb5_error_code
48 add_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 
59 static krb5_error_code
60 foreach(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 
81 kadm5_ret_t
82 kadm5_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     ret = context->db->hdb_open(context->context, context->db, O_RDWR, 0);
91     if(ret) {
92 	krb5_warn(context->context, ret, "opening database");
93 	return ret;
94     }
95     d.exp = expression;
96     {
97 	krb5_realm r;
98 	krb5_get_default_realm(context->context, &r);
99 	asprintf(&d.exp2, "%s@%s", expression, r);
100 	free(r);
101     }
102     d.princs = NULL;
103     d.count = 0;
104     ret = hdb_foreach(context->context, context->db, HDB_F_ADMIN_DATA, foreach, &d);
105     context->db->hdb_close(context->context, context->db);
106     if(ret == 0)
107 	ret = add_princ(&d, NULL);
108     if(ret == 0){
109 	*princs = d.princs;
110 	*count = d.count - 1;
111     }else
112 	kadm5_free_name_list(context, d.princs, &d.count);
113     free(d.exp2);
114     return _kadm5_error_code(ret);
115 }
116