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/*
* lib/kdb/setup_mkey.c
*
* Copyright 1990 by the Massachusetts Institute of Technology.
* 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 M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*
* krb5_kdb_setup_mkey()
*/
#include "k5-int.h"
/*
* Given a key name and a realm name, construct a principal which can be used
* to fetch the master key from the database.
*
* If the key name is NULL, the default key name will be used.
*/
#define REALM_SEP_STRING "@"
krb5_error_code
krb5_db_setup_mkey_name(context, keyname, realm, fullname, principal)
krb5_context context;
const char *keyname;
const char *realm;
char **fullname;
krb5_principal *principal;
{
krb5_error_code retval;
int keylen;
int rlen = strlen(realm);
char *fname;
if (!keyname)
keyname = KRB5_KDB_M_NAME; /* XXX external? */
keylen = strlen(keyname);
fname = malloc(keylen+rlen+2);
if (!fname)
return ENOMEM;
strcpy(fname, keyname);
strcat(fname, REALM_SEP_STRING);
strcat(fname, realm);
if ((retval = krb5_parse_name(context, fname, principal)))
return retval;
if (fullname)
*fullname = fname;
else
free(fname);
return 0;
}
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