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/*
* Copyright (c) 1997, 1998 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 the Institute 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 THE INSTITUTE AND 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 THE INSTITUTE OR 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"
RCSID("$Id: mk_error.c,v 1.14 1999/12/02 17:05:11 joda Exp $");
krb5_error_code
krb5_mk_error(krb5_context context,
krb5_error_code error_code,
const char *e_text,
const krb5_data *e_data,
const krb5_principal client,
const krb5_principal server,
time_t ctime,
krb5_data *reply)
{
KRB_ERROR msg;
u_char *buf;
size_t buf_size;
int32_t sec, usec;
size_t len;
krb5_error_code ret = 0;
krb5_us_timeofday (context, &sec, &usec);
memset(&msg, 0, sizeof(msg));
msg.pvno = 5;
msg.msg_type = krb_error;
msg.stime = sec;
msg.susec = usec;
if(ctime) {
msg.ctime = &ctime;
}
/* Make sure we only send `protocol' error codes */
if(error_code < KRB5KDC_ERR_NONE || error_code >= KRB5_ERR_RCSID) {
if(e_text == NULL)
e_text = krb5_get_err_text(context, error_code);
error_code = KRB5KRB_ERR_GENERIC;
}
msg.error_code = error_code - KRB5KDC_ERR_NONE;
if (e_text)
msg.e_text = (general_string*)&e_text;
if (e_data)
msg.e_data = (octet_string*)e_data;
if(server){
msg.realm = server->realm;
msg.sname = server->name;
}else{
msg.realm = "<unspecified realm>";
}
if(client){
msg.crealm = &client->realm;
msg.cname = &client->name;
}
buf_size = 1024;
buf = malloc (buf_size);
if (buf == NULL)
return ENOMEM;
do {
ret = encode_KRB_ERROR(buf + buf_size - 1,
buf_size,
&msg,
&len);
if (ret) {
if (ret == ASN1_OVERFLOW) {
u_char *tmp;
buf_size *= 2;
tmp = realloc (buf, buf_size);
if (tmp == NULL) {
ret = ENOMEM;
goto out;
}
buf = tmp;
} else {
goto out;
}
}
} while (ret == ASN1_OVERFLOW);
reply->length = len;
reply->data = malloc(len);
if (reply->data == NULL) {
ret = ENOMEM;
goto out;
}
memcpy (reply->data, buf + buf_size - len, len);
out:
free (buf);
return ret;
}
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