83 lines
3.0 KiB
C
83 lines
3.0 KiB
C
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/*
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* Copyright (c) 1995, 1996, 1997 Kungliga Tekniska H<EFBFBD>gskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the Kungliga Tekniska
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* H<EFBFBD>gskolan and its contributors.
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*
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* 4. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "krb_locl.h"
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RCSID("$Id: rd_err.c,v 1.8 1997/04/01 08:18:40 joda Exp $");
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/*
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* Given an AUTH_MSG_APPL_ERR message, "in" and its length "in_length",
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* return the error code from the message in "code" and the text in
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* "m_data" as follows:
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*
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* m_data->app_data points to the error text
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* m_data->app_length points to the length of the error text
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*
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* If all goes well, return RD_AP_OK. If the version number
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* is wrong, return RD_AP_VERSION, and if it's not an AUTH_MSG_APPL_ERR
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* type message, return RD_AP_MSG_TYPE.
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*
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* The AUTH_MSG_APPL_ERR message format can be found in mk_err.c
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*/
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int
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krb_rd_err(u_char *in, u_int32_t in_length, int32_t *code, MSG_DAT *m_data)
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{
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unsigned char *p = (unsigned char*)in;
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unsigned char pvno, type;
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int little_endian;
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pvno = *p++;
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if(pvno != KRB_PROT_VERSION)
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return RD_AP_VERSION;
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type = *p++;
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little_endian = type & 1;
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type &= ~1;
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if(type != AUTH_MSG_APPL_ERR)
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return RD_AP_MSG_TYPE;
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p += krb_get_int(p, (u_int32_t *)&code, 4, little_endian);
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m_data->app_data = p;
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m_data->app_length = in_length; /* XXX is this correct? */
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return KSUCCESS;
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}
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