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/*
* $Source$
* $Author$
*
* Copyright 1991 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America is assumed
* to 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.
*
*
* Convert a hostname and service name to a principal in the "standard"
* form.
*/
#if !defined(lint) && !defined(SABER)
static char rcsid_sn2princ_c[] =
"$Id$";
#endif /* !lint & !SABER */
#include <krb5/krb5.h>
#include <krb5/ext-proto.h>
#include <krb5/los-proto.h>
#include <netdb.h>
#include <ctype.h>
krb5_error_code
krb5_sname_to_principal(DECLARG(const char *,hostname),
DECLARG(const char *,sname),
DECLARG(krb5_boolean,canonicalize),
DECLARG(krb5_principal *,ret_princ))
OLDDECLARG(const char *,hostname)
OLDDECLARG(const char *,sname)
OLDDECLARG(krb5_boolean,canonicalize)
OLDDECLARG(krb5_principal *,ret_princ)
{
struct hostent *hp;
char **hrealms, *remote_host;
krb5_error_code retval;
register char *cp;
/* copy the hostname into non-volatile storage */
if (canonicalize) {
if (!(hp = gethostbyname(hostname)))
return KRB5_ERR_BAD_HOSTNAME;
remote_host = strdup(hp->h_name);
} else {
remote_host = strdup(hostname);
}
if (!remote_host)
return ENOMEM;
for (cp = remote_host; *cp; cp++)
if (isupper(*cp))
*cp = tolower(*cp);
if (retval = krb5_get_host_realm(remote_host, &hrealms)) {
free(remote_host);
return retval;
}
if (!hrealms[0]) {
free(remote_host);
xfree(hrealms);
return KRB5_ERR_HOST_REALM_UNKNOWN;
}
retval = krb5_build_principal(ret_princ, strlen(hrealms[0]), hrealms[0],
sname, remote_host, (char *)0);
krb5_princ_type(*ret_princ) = KRB5_NT_SRV_HST;
free(remote_host);
krb5_free_host_realm(hrealms);
return retval;
}
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