appl/test/tcp_client.c

   1 /*
   2  * Copyright (c) 1997 - 1999 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 "test_locl.h"
  35 RCSID("$Id$");
  36
  37 krb5_context context;
  38
  39 static int
  40 proto (int sock, const char *hostname, const char *service)
  41 {
  42     krb5_auth_context auth_context;
  43     krb5_error_code status;
  44     krb5_principal server;
  45     krb5_data data;
  46     krb5_data packet;
  47     uint32_t len, net_len;
  48
  49     status = krb5_auth_con_init (context, &auth_context);
  50     if (status)
  51         krb5_err (context, 1, status, "krb5_auth_con_init");
  52
  53     status = krb5_auth_con_setaddrs_from_fd (context,
  54                                              auth_context,
  55                                              &sock);
  56     if (status)
  57         krb5_err (context, 1, status, "krb5_auth_con_setaddrs_from_fd");
  58
  59     status = krb5_sname_to_principal (context,
  60                                       hostname,
  61                                       service,
  62                                       KRB5_NT_SRV_HST,
  63                                       &server);
  64     if (status)
  65         krb5_err (context, 1, status, "krb5_sname_to_principal");
  66
  67     status = krb5_sendauth (context,
  68                             &auth_context,
  69                             &sock,
  70                             VERSION,
  71                             NULL,
  72                             server,
  73                             AP_OPTS_MUTUAL_REQUIRED,
  74                             NULL,
  75                             NULL,
  76                             NULL,
  77                             NULL,
  78                             NULL,
  79                             NULL);
  80     if (status)
  81         krb5_err (context, 1, status, "krb5_sendauth");
  82
  83     data.data   = "hej";
  84     data.length = 3;
  85
  86     krb5_data_zero (&packet);
  87
  88     status = krb5_mk_safe (context,
  89                            auth_context,
  90                            &data,
  91                            &packet,
  92                            NULL);
  93     if (status)
  94         krb5_err (context, 1, status, "krb5_mk_safe");
  95
  96     len = packet.length;
  97     net_len = htonl(len);
  98
  99     if (krb5_net_write (context, &sock, &net_len, 4) != 4)
 100         err (1, "krb5_net_write");
 101     if (krb5_net_write (context, &sock, packet.data, len) != len)
 102         err (1, "krb5_net_write");
 103
 104     data.data   = "hemligt";
 105     data.length = 7;
 106
 107     krb5_data_free (&packet);
 108
 109     status = krb5_mk_priv (context,
 110                            auth_context,
 111                            &data,
 112                            &packet,
 113                            NULL);
 114     if (status)
 115         krb5_err (context, 1, status, "krb5_mk_priv");
 116
 117     len = packet.length;
 118     net_len = htonl(len);
 119
 120     if (krb5_net_write (context, &sock, &net_len, 4) != 4)
 121         err (1, "krb5_net_write");
 122     if (krb5_net_write (context, &sock, packet.data, len) != len)
 123         err (1, "krb5_net_write");
 124     return 0;
 125 }
 126
 127 int
 128 main(int argc, char **argv)
 129 {
 130     int port = client_setup(&context, &argc, argv);
 131     return client_doit (argv[argc], port, service, proto);
 132 }