xref: /freebsd/crypto/heimdal/lib/krb5/appdefault.c (revision 8833b15f6382203d094cd6eb69068709b467079d)
1 /*
2  * Copyright (c) 2000 - 2001 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 "krb5_locl.h"
35 
36 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
37 krb5_appdefault_boolean(krb5_context context, const char *appname,
38 			krb5_const_realm realm, const char *option,
39 			krb5_boolean def_val, krb5_boolean *ret_val)
40 {
41 
42     if(appname == NULL)
43 	appname = getprogname();
44 
45     def_val = krb5_config_get_bool_default(context, NULL, def_val,
46 					   "libdefaults", option, NULL);
47     if(realm != NULL)
48 	def_val = krb5_config_get_bool_default(context, NULL, def_val,
49 					       "realms", realm, option, NULL);
50 
51     def_val = krb5_config_get_bool_default(context, NULL, def_val,
52 					   "appdefaults",
53 					   option,
54 					   NULL);
55     if(realm != NULL)
56 	def_val = krb5_config_get_bool_default(context, NULL, def_val,
57 					       "appdefaults",
58 					       realm,
59 					       option,
60 					       NULL);
61     if(appname != NULL) {
62 	def_val = krb5_config_get_bool_default(context, NULL, def_val,
63 					       "appdefaults",
64 					       appname,
65 					       option,
66 					       NULL);
67 	if(realm != NULL)
68 	    def_val = krb5_config_get_bool_default(context, NULL, def_val,
69 						   "appdefaults",
70 						   appname,
71 						   realm,
72 						   option,
73 						   NULL);
74     }
75     *ret_val = def_val;
76 }
77 
78 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
79 krb5_appdefault_string(krb5_context context, const char *appname,
80 		       krb5_const_realm realm, const char *option,
81 		       const char *def_val, char **ret_val)
82 {
83     if(appname == NULL)
84 	appname = getprogname();
85 
86     def_val = krb5_config_get_string_default(context, NULL, def_val,
87 					     "libdefaults", option, NULL);
88     if(realm != NULL)
89 	def_val = krb5_config_get_string_default(context, NULL, def_val,
90 						 "realms", realm, option, NULL);
91 
92     def_val = krb5_config_get_string_default(context, NULL, def_val,
93 					     "appdefaults",
94 					     option,
95 					     NULL);
96     if(realm != NULL)
97 	def_val = krb5_config_get_string_default(context, NULL, def_val,
98 						 "appdefaults",
99 						 realm,
100 						 option,
101 						 NULL);
102     if(appname != NULL) {
103 	def_val = krb5_config_get_string_default(context, NULL, def_val,
104 						 "appdefaults",
105 						 appname,
106 						 option,
107 						 NULL);
108 	if(realm != NULL)
109 	    def_val = krb5_config_get_string_default(context, NULL, def_val,
110 						     "appdefaults",
111 						     appname,
112 						     realm,
113 						     option,
114 						     NULL);
115     }
116     if(def_val != NULL)
117 	*ret_val = strdup(def_val);
118     else
119 	*ret_val = NULL;
120 }
121 
122 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
123 krb5_appdefault_time(krb5_context context, const char *appname,
124 		     krb5_const_realm realm, const char *option,
125 		     time_t def_val, time_t *ret_val)
126 {
127     krb5_deltat t;
128     char *val;
129 
130     krb5_appdefault_string(context, appname, realm, option, NULL, &val);
131     if (val == NULL) {
132 	*ret_val = def_val;
133 	return;
134     }
135     if (krb5_string_to_deltat(val, &t))
136 	*ret_val = def_val;
137     else
138 	*ret_val = t;
139     free(val);
140 }
141