freebsd-dev/crypto/kerberosIV/lib/krb/create_death_packet.c
2000-01-09 08:31:47 +00:00

99 lines
3.0 KiB
C

/*
* Copyright (c) 1995, 1996, 1997 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 "krb_locl.h"
RCSID("$Id: create_death_packet.c,v 1.10 1999/12/02 16:58:41 joda Exp $");
/*
* This routine creates a packet to type AUTH_MSG_DIE which is sent to
* the Kerberos server to make it shut down. It is used only in the
* development environment.
*
* It takes a string "a_name" which is sent in the packet. A pointer
* to the packet is returned.
*
* The format of the killer packet is:
*
* type variable data
* or constant
* ---- ----------- ----
*
* unsigned char KRB_PROT_VERSION protocol version number
*
* unsigned char AUTH_MSG_DIE message type
*
* [least significant HOST_BYTE_ORDER byte order of sender
* bit of above field]
*
* string a_name presumably, name of
* principal sending killer
* packet
*/
#ifdef DEBUG
KTEXT
krb_create_death_packet(char *a_name)
{
static KTEXT_ST pkt_st;
KTEXT pkt = &pkt_st;
unsigned char *p = pkt->dat;
int tmp;
int rem = sizeof(pkt->dat);
pkt->length = 0;
tmp = krb_put_int(KRB_PROT_VERSION, p, rem, 1);
if (tmp < 0)
return NULL;
p += tmp;
rem -= tmp;
tmp = krb_put_int(AUTH_MSG_DIE, p, rem, 1);
if (tmp < 0)
return NULL;
p += tmp;
rem -= tmp;
tmp = krb_put_string(a_name, p, rem);
if (tmp < 0)
return NULL;
p += tmp;
rem -= tmp;
pkt->length = p - pkt->dat;
return pkt;
}
#endif /* DEBUG */