xref: /freebsd/crypto/heimdal/lib/kadm5/get_princs_s.c (revision 57718be8fa0bd5edc11ab9a72e68cc71982939a6)
1 /*
2  * Copyright (c) 1997, 1998, 1999 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 "kadm5_locl.h"
35 
36 RCSID("$Id$");
37 
38 struct foreach_data {
39     const char *exp;
40     char *exp2;
41     char **princs;
42     int count;
43 };
44 
45 static krb5_error_code
46 add_princ(struct foreach_data *d, char *princ)
47 {
48     char **tmp;
49     tmp = realloc(d->princs, (d->count + 1) * sizeof(*tmp));
50     if(tmp == NULL)
51 	return ENOMEM;
52     d->princs = tmp;
53     d->princs[d->count++] = princ;
54     return 0;
55 }
56 
57 static krb5_error_code
58 foreach(krb5_context context, HDB *db, hdb_entry_ex *ent, void *data)
59 {
60     struct foreach_data *d = data;
61     char *princ;
62     krb5_error_code ret;
63     ret = krb5_unparse_name(context, ent->entry.principal, &princ);
64     if(ret)
65 	return ret;
66     if(d->exp){
67 	if(fnmatch(d->exp, princ, 0) == 0 || fnmatch(d->exp2, princ, 0) == 0)
68 	    ret = add_princ(d, princ);
69 	else
70 	    free(princ);
71     }else{
72 	ret = add_princ(d, princ);
73     }
74     if(ret)
75 	free(princ);
76     return ret;
77 }
78 
79 kadm5_ret_t
80 kadm5_s_get_principals(void *server_handle,
81 		       const char *expression,
82 		       char ***princs,
83 		       int *count)
84 {
85     struct foreach_data d;
86     kadm5_server_context *context = server_handle;
87     kadm5_ret_t ret;
88     ret = context->db->hdb_open(context->context, context->db, O_RDWR, 0);
89     if(ret) {
90 	krb5_warn(context->context, ret, "opening database");
91 	return ret;
92     }
93     d.exp = expression;
94     {
95 	krb5_realm r;
96 	krb5_get_default_realm(context->context, &r);
97 	asprintf(&d.exp2, "%s@%s", expression, r);
98 	free(r);
99     }
100     d.princs = NULL;
101     d.count = 0;
102     ret = hdb_foreach(context->context, context->db, HDB_F_ADMIN_DATA, foreach, &d);
103     context->db->hdb_close(context->context, context->db);
104     if(ret == 0)
105 	ret = add_princ(&d, NULL);
106     if(ret == 0){
107 	*princs = d.princs;
108 	*count = d.count - 1;
109     }else
110 	kadm5_free_name_list(context, d.princs, &d.count);
111     free(d.exp2);
112     return _kadm5_error_code(ret);
113 }
114