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/*
* Copyright (c) 2003 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 KTH 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 KTH AND ITS 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 KTH OR ITS 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 "krb5_locl.h"
#include <getarg.h>
#include <err.h>
char localname[1024];
static size_t lname_size = sizeof (localname);
static int lname_size_arg = 0;
static int simple_flag = 0;
static int verbose_flag = 0;
static int version_flag = 0;
static int help_flag = 0;
static struct getargs args[] = {
{"lname-size", 0, arg_integer, &lname_size_arg,
"set localname size (0 means use default, must be 0..1023)", "integer" },
{"simple", 0, arg_flag, &simple_flag, /* Used for scripting */
"map the given principal and print the resulting localname", NULL },
{"verbose", 0, arg_flag, &verbose_flag,
"print the actual principal name as well as the localname", NULL },
{"version", 0, arg_flag, &version_flag,
"print version", NULL },
{"help", 0, arg_flag, &help_flag,
NULL, NULL }
};
static void
test_alname(krb5_context context, krb5_const_realm realm,
const char *user, const char *inst,
const char *localuser, int ok)
{
krb5_principal p;
krb5_error_code ret;
char *princ;
ret = krb5_make_principal(context, &p, realm, user, inst, NULL);
if (ret)
krb5_err(context, 1, ret, "krb5_build_principal");
ret = krb5_unparse_name(context, p, &princ);
if (ret)
krb5_err(context, 1, ret, "krb5_unparse_name");
ret = krb5_aname_to_localname(context, p, lname_size, localname);
krb5_free_principal(context, p);
if (ret) {
if (!ok) {
free(princ);
return;
}
krb5_err(context, 1, ret, "krb5_aname_to_localname: %s -> %s",
princ, localuser);
free(princ);
}
if (strcmp(localname, localuser) != 0) {
if (ok)
errx(1, "compared failed %s != %s (should have succeded)",
localname, localuser);
} else {
if (!ok)
errx(1, "compared failed %s == %s (should have failed)",
localname, localuser);
}
}
static void
usage (int ret)
{
arg_printusage (args,
sizeof(args)/sizeof(*args),
NULL,
"");
exit (ret);
}
int
main(int argc, char **argv)
{
krb5_context context;
krb5_error_code ret;
krb5_realm realm;
int optidx = 0;
char *user;
setprogname(argv[0]);
if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
usage(1);
if (help_flag)
usage (0);
if(version_flag){
print_version(NULL);
exit(0);
}
argc -= optidx;
argv += optidx;
ret = krb5_init_context(&context);
if (ret)
errx (1, "krb5_init_context failed: %d", ret);
if (simple_flag) {
krb5_principal princ;
char *unparsed;
int status = 0;
/* Map then print the result and exit */
if (argc != 1)
errx(1, "One argument is required and it must be a principal name");
ret = krb5_parse_name(context, argv[0], &princ);
if (ret)
krb5_err(context, 1, ret, "krb5_build_principal");
ret = krb5_unparse_name(context, princ, &unparsed);
if (ret)
krb5_err(context, 1, ret, "krb5_unparse_name");
if (lname_size_arg > 0 && lname_size_arg < 1024)
lname_size = lname_size_arg;
else if (lname_size_arg != 0)
errx(1, "local name size must be between 0 and 1023 (inclusive)");
ret = krb5_aname_to_localname(context, princ, lname_size, localname);
if (ret == KRB5_NO_LOCALNAME) {
if (verbose_flag)
fprintf(stderr, "No mapping obtained for %s\n", unparsed);
exit(1);
}
switch (ret) {
case KRB5_PLUGIN_NO_HANDLE:
fprintf(stderr, "Error: KRB5_PLUGIN_NO_HANDLE leaked!\n");
status = 2;
break;
case KRB5_CONFIG_NOTENUFSPACE:
fprintf(stderr, "Error: lname-size (%lu) too small\n",
(long unsigned)lname_size);
status = 3;
break;
case 0:
if (verbose_flag)
printf("%s ", unparsed);
printf("%s\n", localname);
break;
default:
krb5_err(context, 4, ret, "krb5_aname_to_localname");
break;
}
free(unparsed);
krb5_free_principal(context, princ);
krb5_free_context(context);
exit(status);
}
if (argc != 1)
errx(1, "first argument should be a local user that is in root .k5login");
user = argv[0];
ret = krb5_get_default_realm(context, &realm);
if (ret)
krb5_err(context, 1, ret, "krb5_get_default_realm");
test_alname(context, realm, user, NULL, user, 1);
test_alname(context, realm, user, "root", "root", 1);
test_alname(context, "FOO.BAR.BAZ.KAKA", user, NULL, user, 0);
test_alname(context, "FOO.BAR.BAZ.KAKA", user, "root", "root", 0);
test_alname(context, realm, user, NULL,
"not-same-as-user", 0);
test_alname(context, realm, user, "root",
"not-same-as-user", 0);
test_alname(context, "FOO.BAR.BAZ.KAKA", user, NULL,
"not-same-as-user", 0);
test_alname(context, "FOO.BAR.BAZ.KAKA", user, "root",
"not-same-as-user", 0);
krb5_free_context(context);
return 0;
}
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