lib/krb5/appdefault.c

   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 RCSID("$Id$");
  37
  38 void KRB5_LIB_FUNCTION
  39 krb5_appdefault_boolean(krb5_context context, const char *appname,
  40                         krb5_const_realm realm, const char *option,
  41                         krb5_boolean def_val, krb5_boolean *ret_val)
  42 {
  43
  44     if(appname == NULL)
  45         appname = getprogname();
  46
  47     def_val = krb5_config_get_bool_default(context, NULL, def_val,
  48                                            "libdefaults", option, NULL);
  49     if(realm != NULL)
  50         def_val = krb5_config_get_bool_default(context, NULL, def_val,
  51                                                "realms", realm, option, NULL);
  52
  53     def_val = krb5_config_get_bool_default(context, NULL, def_val,
  54                                            "appdefaults",
  55                                            option,
  56                                            NULL);
  57     if(realm != NULL)
  58         def_val = krb5_config_get_bool_default(context, NULL, def_val,
  59                                                "appdefaults",
  60                                                realm,
  61                                                option,
  62                                                NULL);
  63     if(appname != NULL) {
  64         def_val = krb5_config_get_bool_default(context, NULL, def_val,
  65                                                "appdefaults",
  66                                                appname,
  67                                                option,
  68                                                NULL);
  69         if(realm != NULL)
  70             def_val = krb5_config_get_bool_default(context, NULL, def_val,
  71                                                    "appdefaults",
  72                                                    appname,
  73                                                    realm,
  74                                                    option,
  75                                                    NULL);
  76     }
  77     *ret_val = def_val;
  78 }
  79
  80 void KRB5_LIB_FUNCTION
  81 krb5_appdefault_string(krb5_context context, const char *appname,
  82                        krb5_const_realm realm, const char *option,
  83                        const char *def_val, char **ret_val)
  84 {
  85     if(appname == NULL)
  86         appname = getprogname();
  87
  88     def_val = krb5_config_get_string_default(context, NULL, def_val,
  89                                              "libdefaults", option, NULL);
  90     if(realm != NULL)
  91         def_val = krb5_config_get_string_default(context, NULL, def_val,
  92                                                  "realms", realm, option, NULL);
  93
  94     def_val = krb5_config_get_string_default(context, NULL, def_val,
  95                                              "appdefaults",
  96                                              option,
  97                                              NULL);
  98     if(realm != NULL)
  99         def_val = krb5_config_get_string_default(context, NULL, def_val,
 100                                                  "appdefaults",
 101                                                  realm,
 102                                                  option,
 103                                                  NULL);
 104     if(appname != NULL) {
 105         def_val = krb5_config_get_string_default(context, NULL, def_val,
 106                                                  "appdefaults",
 107                                                  appname,
 108                                                  option,
 109                                                  NULL);
 110         if(realm != NULL)
 111             def_val = krb5_config_get_string_default(context, NULL, def_val,
 112                                                      "appdefaults",
 113                                                      appname,
 114                                                      realm,
 115                                                      option,
 116                                                      NULL);
 117     }
 118     if(def_val != NULL)
 119         *ret_val = strdup(def_val);
 120     else
 121         *ret_val = NULL;
 122 }
 123
 124 void KRB5_LIB_FUNCTION
 125 krb5_appdefault_time(krb5_context context, const char *appname,
 126                      krb5_const_realm realm, const char *option,
 127                      time_t def_val, time_t *ret_val)
 128 {
 129     krb5_deltat t;
 130     char *val;
 131
 132     krb5_appdefault_string(context, appname, realm, option, NULL, &val);
 133     if (val == NULL) {
 134         *ret_val = def_val;
 135         return;
 136     }
 137     if (krb5_string_to_deltat(val, &t))
 138         *ret_val = def_val;
 139     else
 140         *ret_val = t;
 141     free(val);
 142 }