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/*
* Copyright (C) 1998 by the FundsXpress, INC.
*
* All rights reserved.
*
* Export of this software from the United States of America may require
* a specific license from the United States Government. It is the
* responsibility of any person or organization contemplating export to
* obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of FundsXpress. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. FundsXpress makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#include <stdio.h>
#include <stdlib.h>
#include "autoconf.h"
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <string.h>
extern int optind;
extern char *optarg;
static char *prog;
static void xusage()
{
fprintf(stderr, "usage: %s [-C] [-u] [-c ccache] [-e etype] [-k keytab] [-S sname] service1 service2 ...\n",
prog);
exit(1);
}
int quiet = 0;
static void do_v5_kvno (int argc, char *argv[],
char *ccachestr, char *etypestr, char *keytab_name,
char *sname, int canon, int unknown);
#include <com_err.h>
static void extended_com_err_fn (const char *, errcode_t, const char *,
va_list);
int main(int argc, char *argv[])
{
int option;
char *etypestr = NULL, *ccachestr = NULL, *keytab_name = NULL;
char *sname = NULL;
int canon = 0, unknown = 0;
set_com_err_hook (extended_com_err_fn);
prog = strrchr(argv[0], '/');
prog = prog ? (prog + 1) : argv[0];
while ((option = getopt(argc, argv, "uCc:e:hk:qS:")) != -1) {
switch (option) {
case 'C':
canon = 1;
break;
case 'c':
ccachestr = optarg;
break;
case 'e':
etypestr = optarg;
break;
case 'h':
xusage();
break;
case 'k':
keytab_name = optarg;
break;
case 'q':
quiet = 1;
break;
case 'S':
sname = optarg;
if (unknown == 1){
fprintf(stderr, "Options -u and -S are mutually exclusive\n");
xusage();
}
break;
case 'u':
unknown = 1;
if (sname){
fprintf(stderr, "Options -u and -S are mutually exclusive\n");
xusage();
}
break;
default:
xusage();
break;
}
}
if ((argc - optind) < 1)
xusage();
do_v5_kvno(argc - optind, argv + optind,
ccachestr, etypestr, keytab_name, sname, canon, unknown);
return 0;
}
#include <krb5.h>
static krb5_context context;
static void extended_com_err_fn (const char *myprog, errcode_t code,
const char *fmt, va_list args)
{
const char *emsg;
emsg = krb5_get_error_message (context, code);
fprintf (stderr, "%s: %s ", myprog, emsg);
krb5_free_error_message (context, emsg);
vfprintf (stderr, fmt, args);
fprintf (stderr, "\n");
}
static void do_v5_kvno (int count, char *names[],
char * ccachestr, char *etypestr, char *keytab_name,
char *sname, int canon, int unknown)
{
krb5_error_code ret;
int i, errors;
krb5_enctype etype;
krb5_ccache ccache;
krb5_principal me;
krb5_creds in_creds, *out_creds;
krb5_ticket *ticket;
char *princ;
krb5_keytab keytab = NULL;
ret = krb5_init_context(&context);
if (ret) {
com_err(prog, ret, "while initializing krb5 library");
exit(1);
}
if (etypestr) {
ret = krb5_string_to_enctype(etypestr, &etype);
if (ret) {
com_err(prog, ret, "while converting etype");
exit(1);
}
} else {
etype = 0;
}
if (ccachestr)
ret = krb5_cc_resolve(context, ccachestr, &ccache);
else
ret = krb5_cc_default(context, &ccache);
if (ret) {
com_err(prog, ret, "while opening ccache");
exit(1);
}
if (keytab_name) {
ret = krb5_kt_resolve(context, keytab_name, &keytab);
if (ret) {
com_err(prog, ret, "resolving keytab %s", keytab_name);
exit(1);
}
}
ret = krb5_cc_get_principal(context, ccache, &me);
if (ret) {
com_err(prog, ret, "while getting client principal name");
exit(1);
}
errors = 0;
for (i = 0; i < count; i++) {
memset(&in_creds, 0, sizeof(in_creds));
in_creds.client = me;
if (sname != NULL) {
ret = krb5_sname_to_principal(context, names[i],
sname, KRB5_NT_SRV_HST,
&in_creds.server);
} else {
ret = krb5_parse_name(context, names[i], &in_creds.server);
}
if (ret) {
if (!quiet)
com_err(prog, ret, "while parsing principal name %s", names[i]);
errors++;
continue;
}
if (unknown == 1) {
krb5_princ_type(context, in_creds.server) = KRB5_NT_UNKNOWN;
}
ret = krb5_unparse_name(context, in_creds.server, &princ);
if (ret) {
com_err(prog, ret,
"while formatting parsed principal name for '%s'",
names[i]);
errors++;
continue;
}
in_creds.keyblock.enctype = etype;
ret = krb5_get_credentials(context, canon ? KRB5_GC_CANONICALIZE : 0,
ccache, &in_creds, &out_creds);
krb5_free_principal(context, in_creds.server);
if (ret) {
com_err(prog, ret, "while getting credentials for %s", princ);
krb5_free_unparsed_name(context, princ);
errors++;
continue;
}
/* we need a native ticket */
ret = krb5_decode_ticket(&out_creds->ticket, &ticket);
if (ret) {
com_err(prog, ret, "while decoding ticket for %s", princ);
krb5_free_creds(context, out_creds);
krb5_free_unparsed_name(context, princ);
errors++;
continue;
}
if (keytab) {
ret = krb5_server_decrypt_ticket_keytab(context, keytab, ticket);
if (ret) {
if (!quiet)
printf("%s: kvno = %d, keytab entry invalid", princ, ticket->enc_part.kvno);
com_err(prog, ret, "while decrypting ticket for %s", princ);
krb5_free_ticket(context, ticket);
krb5_free_creds(context, out_creds);
krb5_free_unparsed_name(context, princ);
errors++;
continue;
}
if (!quiet)
printf("%s: kvno = %d, keytab entry valid\n", princ, ticket->enc_part.kvno);
} else {
if (!quiet)
printf("%s: kvno = %d\n", princ, ticket->enc_part.kvno);
}
krb5_free_creds(context, out_creds);
krb5_free_unparsed_name(context, princ);
}
if (keytab)
krb5_kt_close(context, keytab);
krb5_free_principal(context, me);
krb5_cc_close(context, ccache);
krb5_free_context(context);
if (errors)
exit(1);
exit(0);
}
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