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/*
* Copyright 1994 by OpenVision Technologies, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appears in all copies and
* that both that copyright notice and this permission notice appear in
* supporting documentation, and that the name of OpenVision not be used
* in advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. OpenVision makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*
* OPENVISION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL OPENVISION BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include "krb5.h"
#include <krb.h>
#include "krb524.h"
/*
* krb524_convert_tkt. Open a network connection to krb524d, send it
* the V5 ticket, receive the V4 ticket in response.
*/
int krb524_convert_tkt(server, v5tkt, v4tkt, kvno, saddr)
krb5_principal server;
krb5_data *v5tkt;
KTEXT_ST *v4tkt;
int *kvno;
struct sockaddr_in *saddr;
{
char *p;
krb5_data reply;
struct servent *serv;
int ret, status;
reply.data = NULL;
if (saddr->sin_port == 0) {
serv = getservbyname(KRB524_SERVICE, "udp");
if (serv)
saddr->sin_port = serv->s_port;
else
saddr->sin_port = htons(KRB524_PORT);
}
if ((ret = krb524_send_message((struct sockaddr *) saddr, v5tkt, &reply)))
goto fail;
p = reply.data;
status = ntohl(*((krb5_error_code *) p));
p += sizeof(krb5_error_code);
reply.length -= sizeof(krb5_error_code);
if (status) {
ret = status;
goto fail;
}
*kvno = ntohl(*((krb5_error_code *) p));
p += sizeof(int);
reply.length -= sizeof(int);
ret = decode_v4tkt(v4tkt, p, &reply.length);
fail:
if (ret) {
if (reply.data)
free(reply.data);
reply.data = NULL;
reply.length = 0;
}
return ret;
}
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