103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
/*
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* Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
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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. 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 "krb5_locl.h"
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RCSID("$Id: read_message.c,v 1.8 2001/05/14 06:14:51 assar Exp $");
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krb5_error_code
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krb5_read_message (krb5_context context,
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krb5_pointer p_fd,
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krb5_data *data)
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{
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krb5_error_code ret;
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u_int32_t len;
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u_int8_t buf[4];
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ret = krb5_net_read (context, p_fd, buf, 4);
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if(ret == -1) {
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ret = errno;
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krb5_clear_error_string (context);
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return ret;
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}
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if(ret < 4) {
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data->length = 0;
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return HEIM_ERR_EOF;
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}
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len = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
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ret = krb5_data_alloc (data, len);
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if (ret)
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return ret;
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if (krb5_net_read (context, p_fd, data->data, len) != len) {
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ret = errno;
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krb5_data_free (data);
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krb5_clear_error_string (context);
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return ret;
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}
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return 0;
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}
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krb5_error_code
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krb5_read_priv_message(krb5_context context,
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krb5_auth_context ac,
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krb5_pointer p_fd,
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krb5_data *data)
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{
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krb5_error_code ret;
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krb5_data packet;
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ret = krb5_read_message(context, p_fd, &packet);
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if(ret)
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return ret;
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ret = krb5_rd_priv (context, ac, &packet, data, NULL);
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krb5_data_free(&packet);
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return ret;
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}
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krb5_error_code
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krb5_read_safe_message(krb5_context context,
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krb5_auth_context ac,
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krb5_pointer p_fd,
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krb5_data *data)
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{
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krb5_error_code ret;
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krb5_data packet;
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ret = krb5_read_message(context, p_fd, &packet);
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if(ret)
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return ret;
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ret = krb5_rd_safe (context, ac, &packet, data, NULL);
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krb5_data_free(&packet);
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return ret;
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}
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