Files
heimdal/lib/hdb/test_dbinfo.c
Nicolas Williams 6aeab13f06 hdb: Use a CHOICE instead of ASN1_BAD_ID
Checking the error code of decoding a blob as an hdb_entry or
hdb_entry_alias to determine which of those the blob is depends on a
detail of the Heimdal ASN.1 compiler and library that shouldn't be
depended on.  Using a CHOICE adds no octets to the encoding:

    HDB-EntryOrAlias ::= CHOICE {
            entry       hdb_entry,
            alias       hdb_entry_alias
    }

since we're adding no additional tags and the two arms of the CHOICE
already differ in tag (hdb_entry's tag is a [UNIVERSAL Sequence] tag,
while hdb_entry_alias's is an [APPLICATION 0] tag).
2021-01-15 13:21:18 -06:00

157 lines
4.8 KiB
C

/*
* Copyright (c) 2005 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "hdb_locl.h"
#include <getarg.h>
static int help_flag;
static int version_flag;
struct getargs args[] = {
{ "help", 'h', arg_flag, &help_flag, NULL, NULL },
{ "version", 0, arg_flag, &version_flag, NULL, NULL }
};
static int num_args = sizeof(args) / sizeof(args[0]);
/*
* Prove that HDB_EntryOrAlias being a CHOICE of hdb_entry or hdb_entry_alias
* adds nothing to the encoding of those types.
*/
static
void
check_HDB_EntryOrAlias(krb5_context context)
{
HDB_EntryOrAlias eoa;
hdb_entry entry;
hdb_entry_alias alias;
krb5_data v;
size_t len;
int ret;
memset(&entry, 0, sizeof(entry));
memset(&alias, 0, sizeof(alias));
memset(&eoa, 0, sizeof(eoa));
krb5_data_zero(&v);
ret = krb5_make_principal(context, &alias.principal, "KTH.SE", "foo",
NULL);
if (ret)
krb5_err(context, 1, ret, "krb5_make_principal");
ASN1_MALLOC_ENCODE(hdb_entry_alias, v.data, v.length, &alias, &len, ret);
if (ret)
krb5_err(context, 1, ret, "encode_HDB_EntryOrAlias");
if (v.length != len)
abort();
ret = decode_HDB_EntryOrAlias(v.data, v.length, &eoa, &len);
if (ret)
krb5_err(context, 1, ret, "decode_HDB_EntryOrAlias");
if (v.length != len)
abort();
free_HDB_EntryOrAlias(&eoa);
free_hdb_entry_alias(&alias);
krb5_data_free(&v);
ret = krb5_make_principal(context, &entry.principal, "KTH.SE", "foo",
NULL);
if (ret)
krb5_err(context, 1, ret, "krb5_make_principal");
entry.kvno = 5;
entry.flags.initial = 1;
ASN1_MALLOC_ENCODE(hdb_entry, v.data, v.length, &entry, &len, ret);
if (ret)
krb5_err(context, 1, ret, "encode_HDB_EntryOrAlias");
if (v.length != len)
abort();
ret = decode_HDB_EntryOrAlias(v.data, v.length, &eoa, &len);
if (ret)
krb5_err(context, 1, ret, "decode_HDB_EntryOrAlias");
if (v.length != len)
abort();
free_HDB_EntryOrAlias(&eoa);
free_hdb_entry(&entry);
krb5_data_free(&v);
}
int
main(int argc, char **argv)
{
struct hdb_dbinfo *info, *d;
krb5_context context;
int ret, o = 0;
setprogname(argv[0]);
if(getarg(args, num_args, argc, argv, &o))
krb5_std_usage(1, args, num_args);
if(help_flag)
krb5_std_usage(0, args, num_args);
if(version_flag){
print_version(NULL);
exit(0);
}
ret = krb5_init_context(&context);
if (ret)
errx (1, "krb5_init_context failed: %d", ret);
check_HDB_EntryOrAlias(context);
ret = hdb_get_dbinfo(context, &info);
if (ret)
krb5_err(context, 1, ret, "hdb_get_dbinfo");
d = NULL;
while ((d = hdb_dbinfo_get_next(info, d)) != NULL) {
const char *s;
s = hdb_dbinfo_get_label(context, d);
printf("label: %s\n", s ? s : "no label");
s = hdb_dbinfo_get_realm(context, d);
printf("\trealm: %s\n", s ? s : "no realm");
s = hdb_dbinfo_get_dbname(context, d);
printf("\tdbname: %s\n", s ? s : "no dbname");
s = hdb_dbinfo_get_mkey_file(context, d);
printf("\tmkey_file: %s\n", s ? s : "no mkey file");
s = hdb_dbinfo_get_acl_file(context, d);
printf("\tacl_file: %s\n", s ? s : "no acl file");
}
hdb_free_dbinfo(context, &info);
krb5_free_context(context);
return 0;
}