crypto/dist/heimdal/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("$Heimdal: appdefault.c 14465 2005-01-05 05:40:59Z lukeh $"
  37         "$NetBSD$");
  38
  39 void KRB5_LIB_FUNCTION
  40 krb5_appdefault_boolean(krb5_context context, const char *appname,
  41                         krb5_const_realm realm, const char *option,
  42                         krb5_boolean def_val, krb5_boolean *ret_val)
  43 {
  44
  45     if(appname == NULL)
  46         appname = getprogname();
  47
  48     def_val = krb5_config_get_bool_default(context, NULL, def_val,
  49                                            "libdefaults", option, NULL);
  50     if(realm != NULL)
  51         def_val = krb5_config_get_bool_default(context, NULL, def_val,
  52                                                "realms", realm, option, NULL);
  53
  54     def_val = krb5_config_get_bool_default(context, NULL, def_val,
  55                                            "appdefaults",
  56                                            option,
  57                                            NULL);
  58     if(realm != NULL)
  59         def_val = krb5_config_get_bool_default(context, NULL, def_val,
  60                                                "appdefaults",
  61                                                realm,
  62                                                option,
  63                                                NULL);
  64     if(appname != NULL) {
  65         def_val = krb5_config_get_bool_default(context, NULL, def_val,
  66                                                "appdefaults",
  67                                                appname,
  68                                                option,
  69                                                NULL);
  70         if(realm != NULL)
  71             def_val = krb5_config_get_bool_default(context, NULL, def_val,
  72                                                    "appdefaults",
  73                                                    appname,
  74                                                    realm,
  75                                                    option,
  76                                                    NULL);
  77     }
  78     *ret_val = def_val;
  79 }
  80
  81 void KRB5_LIB_FUNCTION
  82 krb5_appdefault_string(krb5_context context, const char *appname,
  83                        krb5_const_realm realm, const char *option,
  84                        const char *def_val, char **ret_val)
  85 {
  86     if(appname == NULL)
  87         appname = getprogname();
  88
  89     def_val = krb5_config_get_string_default(context, NULL, def_val,
  90                                              "libdefaults", option, NULL);
  91     if(realm != NULL)
  92         def_val = krb5_config_get_string_default(context, NULL, def_val,
  93                                                  "realms", realm, option, NULL);
  94
  95     def_val = krb5_config_get_string_default(context, NULL, def_val,
  96                                              "appdefaults",
  97                                              option,
  98                                              NULL);
  99     if(realm != NULL)
 100         def_val = krb5_config_get_string_default(context, NULL, def_val,
 101                                                  "appdefaults",
 102                                                  realm,
 103                                                  option,
 104                                                  NULL);
 105     if(appname != NULL) {
 106         def_val = krb5_config_get_string_default(context, NULL, def_val,
 107                                                  "appdefaults",
 108                                                  appname,
 109                                                  option,
 110                                                  NULL);
 111         if(realm != NULL)
 112             def_val = krb5_config_get_string_default(context, NULL, def_val,
 113                                                      "appdefaults",
 114                                                      appname,
 115                                                      realm,
 116                                                      option,
 117                                                      NULL);
 118     }
 119     if(def_val != NULL)
 120         *ret_val = strdup(def_val);
 121     else
 122         *ret_val = NULL;
 123 }
 124
 125 void KRB5_LIB_FUNCTION
 126 krb5_appdefault_time(krb5_context context, const char *appname,
 127                      krb5_const_realm realm, const char *option,
 128                      time_t def_val, time_t *ret_val)
 129 {
 130     krb5_deltat t;
 131     char *val;
 132
 133     krb5_appdefault_string(context, appname, realm, option, NULL, &val);
 134     if (val == NULL) {
 135         *ret_val = def_val;
 136         return;
 137     }
 138     if (krb5_string_to_deltat(val, &t))
 139         *ret_val = def_val;
 140     else
 141         *ret_val = t;
 142     free(val);
 143 }