lib/krb5/write_message.c

   1 /*
   2  * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include "krb5_locl.h"
  35
  36 krb5_error_code KRB5_LIB_FUNCTION
  37 krb5_write_message (krb5_context context,
  38                     krb5_pointer p_fd,
  39                     krb5_data *data)
  40 {
  41     uint32_t len;
  42     uint8_t buf[4];
  43     int ret;
  44
  45     len = data->length;
  46     _krb5_put_int(buf, len, 4);
  47     if (krb5_net_write (context, p_fd, buf, 4) != 4
  48         || krb5_net_write (context, p_fd, data->data, len) != len) {
  49         ret = errno;
  50         krb5_set_error_message (context, ret, "write: %s", strerror(ret));
  51         return ret;
  52     }
  53     return 0;
  54 }
  55
  56 krb5_error_code KRB5_LIB_FUNCTION
  57 krb5_write_priv_message(krb5_context context,
  58                         krb5_auth_context ac,
  59                         krb5_pointer p_fd,
  60                         krb5_data *data)
  61 {
  62     krb5_error_code ret;
  63     krb5_data packet;
  64
  65     ret = krb5_mk_priv (context, ac, data, &packet, NULL);
  66     if(ret)
  67         return ret;
  68     ret = krb5_write_message(context, p_fd, &packet);
  69     krb5_data_free(&packet);
  70     return ret;
  71 }
  72
  73 krb5_error_code KRB5_LIB_FUNCTION
  74 krb5_write_safe_message(krb5_context context,
  75                         krb5_auth_context ac,
  76                         krb5_pointer p_fd,
  77                         krb5_data *data)
  78 {
  79     krb5_error_code ret;
  80     krb5_data packet;
  81     ret = krb5_mk_safe (context, ac, data, &packet, NULL);
  82     if(ret)
  83         return ret;
  84     ret = krb5_write_message(context, p_fd, &packet);
  85     krb5_data_free(&packet);
  86     return ret;
  87 }