tests/x509dn.c

   1 /*
   2  * Copyright (C) 2004-2012 Free Software Foundation, Inc.
   3  *
   4  * Author: Simon Josefsson
   5  *
   6  * This file is part of GnuTLS.
   7  *
   8  * GnuTLS is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 3 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * GnuTLS is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with GnuTLS; if not, write to the Free Software Foundation,
  20  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 /* Parts copied from GnuTLS example programs. */
  24
  25 #ifdef HAVE_CONFIG_H
  26 #include <config.h>
  27 #endif
  28
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32 #include <sys/types.h>
  33 #include <sys/socket.h>
  34 #if !defined(_WIN32)
  35 # include <netinet/in.h>
  36 # include <sys/wait.h>
  37 # include <arpa/inet.h>
  38 #endif
  39 #include <unistd.h>
  40 #include <gnutls/gnutls.h>
  41 #include <gnutls/abstract.h>
  42
  43 #include "utils.h"
  44
  45 #include "ex-session-info.c"
  46 #include "ex-x509-info.c"
  47 #include "tcp.c"
  48
  49 pid_t child;
  50
  51 static void
  52 tls_log_func (int level, const char *str)
  53 {
  54   fprintf (stderr, "%s |<%d>| %s", child ? "server" : "client", level, str);
  55 }
  56
  57 /* A very basic TLS client, with anonymous authentication.
  58  */
  59
  60 #define MAX_BUF 1024
  61 #define MSG "Hello TLS"
  62
  63 static unsigned char ca_pem[] =
  64   "-----BEGIN CERTIFICATE-----\n"
  65   "MIIB5zCCAVKgAwIBAgIERiYdJzALBgkqhkiG9w0BAQUwGTEXMBUGA1UEAxMOR251\n"
  66   "VExTIHRlc3QgQ0EwHhcNMDcwNDE4MTMyOTExWhcNMDgwNDE3MTMyOTExWjAZMRcw\n"
  67   "FQYDVQQDEw5HbnVUTFMgdGVzdCBDQTCBnDALBgkqhkiG9w0BAQEDgYwAMIGIAoGA\n"
  68   "vuyYeh1vfmslnuggeEKgZAVmQ5ltSdUY7H25WGSygKMUYZ0KT74v8C780qtcNt9T\n"
  69   "7EPH/N6RvB4BprdssgcQLsthR3XKA84jbjjxNCcaGs33lvOz8A1nf8p3hD+cKfRi\n"
  70   "kfYSW2JazLrtCC4yRCas/SPOUxu78of+3HiTfFm/oXUCAwEAAaNDMEEwDwYDVR0T\n"
  71   "AQH/BAUwAwEB/zAPBgNVHQ8BAf8EBQMDBwQAMB0GA1UdDgQWBBTpPBz7rZJu5gak\n"
  72   "Viyi4cBTJ8jylTALBgkqhkiG9w0BAQUDgYEAiaIRqGfp1jPpNeVhABK60SU0KIAy\n"
  73   "njuu7kHq5peUgYn8Jd9zNzExBOEp1VOipGsf6G66oQAhDFp2o8zkz7ZH71zR4HEW\n"
  74   "KoX6n5Emn6DvcEH/9pAhnGxNHJAoS7czTKv/JDZJhkqHxyrE1fuLsg5Qv25DTw7+\n"
  75   "PfqUpIhz5Bbm7J4=\n" "-----END CERTIFICATE-----\n";
  76 const gnutls_datum_t ca = { ca_pem, sizeof (ca_pem) };
  77
  78 static unsigned char cert_pem[] =
  79   "-----BEGIN CERTIFICATE-----\n"
  80   "MIICHjCCAYmgAwIBAgIERiYdNzALBgkqhkiG9w0BAQUwGTEXMBUGA1UEAxMOR251\n"
  81   "VExTIHRlc3QgQ0EwHhcNMDcwNDE4MTMyOTI3WhcNMDgwNDE3MTMyOTI3WjAdMRsw\n"
  82   "GQYDVQQDExJHbnVUTFMgdGVzdCBjbGllbnQwgZwwCwYJKoZIhvcNAQEBA4GMADCB\n"
  83   "iAKBgLtmQ/Xyxde2jMzF3/WIO7HJS2oOoa0gUEAIgKFPXKPQ+GzP5jz37AR2ExeL\n"
  84   "ZIkiW8DdU3w77XwEu4C5KL6Om8aOoKUSy/VXHqLnu7czSZ/ju0quak1o/8kR4jKN\n"
  85   "zj2AC41179gAgY8oBAOgIo1hBAf6tjd9IQdJ0glhaZiQo1ipAgMBAAGjdjB0MAwG\n"
  86   "A1UdEwEB/wQCMAAwEwYDVR0lBAwwCgYIKwYBBQUHAwIwDwYDVR0PAQH/BAUDAweg\n"
  87   "ADAdBgNVHQ4EFgQUTLkKm/odNON+3svSBxX+odrLaJEwHwYDVR0jBBgwFoAU6Twc\n"
  88   "+62SbuYGpFYsouHAUyfI8pUwCwYJKoZIhvcNAQEFA4GBALujmBJVZnvaTXr9cFRJ\n"
  89   "jpfc/3X7sLUsMvumcDE01ls/cG5mIatmiyEU9qI3jbgUf82z23ON/acwJf875D3/\n"
  90   "U7jyOsBJ44SEQITbin2yUeJMIm1tievvdNXBDfW95AM507ShzP12sfiJkJfjjdhy\n"
  91   "dc8Siq5JojruiMizAf0pA7in\n" "-----END CERTIFICATE-----\n";
  92 const gnutls_datum_t cert = { cert_pem, sizeof (cert_pem) };
  93
  94 static unsigned char key_pem[] =
  95   "-----BEGIN RSA PRIVATE KEY-----\n"
  96   "MIICXAIBAAKBgQC7ZkP18sXXtozMxd/1iDuxyUtqDqGtIFBACIChT1yj0Phsz+Y8\n"
  97   "9+wEdhMXi2SJIlvA3VN8O+18BLuAuSi+jpvGjqClEsv1Vx6i57u3M0mf47tKrmpN\n"
  98   "aP/JEeIyjc49gAuNde/YAIGPKAQDoCKNYQQH+rY3fSEHSdIJYWmYkKNYqQIDAQAB\n"
  99   "AoGADpmARG5CQxS+AesNkGmpauepiCz1JBF/JwnyiX6vEzUh0Ypd39SZztwrDxvF\n"
 100   "PJjQaKVljml1zkJpIDVsqvHdyVdse8M+Qn6hw4x2p5rogdvhhIL1mdWo7jWeVJTF\n"
 101   "RKB7zLdMPs3ySdtcIQaF9nUAQ2KJEvldkO3m/bRJFEp54k0CQQDYy+RlTmwRD6hy\n"
 102   "7UtMjR0H3CSZJeQ8svMCxHLmOluG9H1UKk55ZBYfRTsXniqUkJBZ5wuV1L+pR9EK\n"
 103   "ca89a+1VAkEA3UmBelwEv2u9cAU1QjKjmwju1JgXbrjEohK+3B5y0ESEXPAwNQT9\n"
 104   "TrDM1m9AyxYTWLxX93dI5QwNFJtmbtjeBQJARSCWXhsoaDRG8QZrCSjBxfzTCqZD\n"
 105   "ZXtl807ymCipgJm60LiAt0JLr4LiucAsMZz6+j+quQbSakbFCACB8SLV1QJBAKZQ\n"
 106   "YKf+EPNtnmta/rRKKvySsi3GQZZN+Dt3q0r094XgeTsAqrqujVNfPhTMeP4qEVBX\n"
 107   "/iVX2cmMTSh3w3z8MaECQEp0XJWDVKOwcTW6Ajp9SowtmiZ3YDYo1LF9igb4iaLv\n"
 108   "sWZGfbnU3ryjvkb6YuFjgtzbZDZHWQCo8/cOtOBmPdk=\n"
 109   "-----END RSA PRIVATE KEY-----\n";
 110 const gnutls_datum_t key = { key_pem, sizeof (key_pem) };
 111
 112 #define EXPECT_RDN0 "GnuTLS test CA"
 113
 114 static int
 115 cert_callback (gnutls_session_t session,
 116                const gnutls_datum_t * req_ca_rdn, int nreqs,
 117                const gnutls_pk_algorithm_t * sign_algos,
 118                int sign_algos_length, gnutls_pcert_st ** pcert,
 119                unsigned int* pcert_length, gnutls_privkey_t *pkey)
 120 {
 121   int result;
 122   gnutls_x509_dn_t dn;
 123
 124   if (nreqs != 1)
 125     {
 126       fail ("client: invoked to provide client cert, %d CA .\n", nreqs);
 127       return -1;
 128     }
 129
 130   if (debug)
 131     success ("client: invoked to provide client cert.\n");
 132
 133   result = gnutls_x509_dn_init (&dn);
 134   if (result < 0)
 135     {
 136       fail ("client: could not initialize DN.\n");
 137       return -1;
 138     }
 139
 140   result = gnutls_x509_dn_import (dn, req_ca_rdn);
 141   if (result == 0)
 142     {
 143       gnutls_x509_ava_st val;
 144
 145       if (debug)
 146         success ("client: imported DN.\n");
 147
 148       if (gnutls_x509_dn_get_rdn_ava (dn, 0, 0, &val) == 0)
 149         {
 150           if (debug)
 151             success ("client: got RDN 0.\n");
 152
 153           if (val.value.size == strlen (EXPECT_RDN0)
 154               && strncmp ((char*)val.value.data, EXPECT_RDN0, val.value.size) == 0)
 155             {
 156               if (debug)
 157                 success ("client: RND 0 correct.\n");
 158             }
 159           else
 160             {
 161               fail ("client: RND 0 bad: %.*s\n",
 162                     val.value.size, val.value.data);
 163               return -1;
 164             }
 165         }
 166       else
 167         {
 168           fail ("client: could not retrieve RDN 0.\n");
 169           return -1;
 170         }
 171
 172       gnutls_x509_dn_deinit (dn);
 173     }
 174   else
 175     {
 176       fail ("client: failed to parse RDN: %s\n", gnutls_strerror (result));
 177     }
 178
 179   return 0;
 180 }
 181
 182
 183 static void
 184 client (void)
 185 {
 186   int ret, sd, ii;
 187   gnutls_session_t session;
 188   char buffer[MAX_BUF + 1];
 189   gnutls_certificate_credentials_t xcred;
 190
 191   gnutls_global_init ();
 192
 193   gnutls_global_set_log_function (tls_log_func);
 194   if (debug)
 195     gnutls_global_set_log_level (4711);
 196
 197   gnutls_certificate_allocate_credentials (&xcred);
 198
 199   /* sets the trusted cas file
 200    */
 201   gnutls_certificate_set_x509_trust_mem (xcred, &ca, GNUTLS_X509_FMT_PEM);
 202
 203   gnutls_certificate_set_retrieve_function2 (xcred, cert_callback);
 204
 205   /* Initialize TLS session
 206    */
 207   gnutls_init (&session, GNUTLS_CLIENT);
 208
 209   /* Use default priorities */
 210   gnutls_set_default_priority (session);
 211
 212   /* put the x509 credentials to the current session
 213    */
 214   gnutls_credentials_set (session, GNUTLS_CRD_CERTIFICATE, xcred);
 215
 216   /* connect to the peer
 217    */
 218   sd = tcp_connect ();
 219
 220   gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) sd);
 221
 222   /* Perform the TLS handshake
 223    */
 224   ret = gnutls_handshake (session);
 225
 226   if (ret < 0)
 227     {
 228       fail ("client: Handshake failed\n");
 229       gnutls_perror (ret);
 230       goto end;
 231     }
 232   else
 233     {
 234       if (debug)
 235         success ("client: Handshake was completed\n");
 236     }
 237
 238   if (debug)
 239     success ("client: TLS version is: %s\n",
 240              gnutls_protocol_get_name (gnutls_protocol_get_version
 241                                        (session)));
 242
 243   /* see the Getting peer's information example */
 244   if (debug)
 245     print_info (session);
 246
 247   gnutls_record_send (session, MSG, strlen (MSG));
 248
 249   ret = gnutls_record_recv (session, buffer, MAX_BUF);
 250   if (ret == 0)
 251     {
 252       if (debug)
 253         success ("client: Peer has closed the TLS connection\n");
 254       goto end;
 255     }
 256   else if (ret < 0)
 257     {
 258       fail ("client: Error: %s\n", gnutls_strerror (ret));
 259       goto end;
 260     }
 261
 262   if (debug)
 263     {
 264       printf ("- Received %d bytes: ", ret);
 265       for (ii = 0; ii < ret; ii++)
 266         {
 267           fputc (buffer[ii], stdout);
 268         }
 269       fputs ("\n", stdout);
 270     }
 271
 272   gnutls_bye (session, GNUTLS_SHUT_RDWR);
 273
 274 end:
 275
 276   tcp_close (sd);
 277
 278   gnutls_deinit (session);
 279
 280   gnutls_certificate_free_credentials (xcred);
 281
 282   gnutls_global_deinit ();
 283 }
 284
 285 /* This is a sample TLS 1.0 echo server, using X.509 authentication.
 286  */
 287
 288 #define SA struct sockaddr
 289 #define MAX_BUF 1024
 290 #define PORT 5556               /* listen to 5556 port */
 291 #define DH_BITS 1024
 292
 293 /* These are global */
 294 gnutls_certificate_credentials_t x509_cred;
 295
 296 static gnutls_session_t
 297 initialize_tls_session (void)
 298 {
 299   gnutls_session_t session;
 300
 301   gnutls_init (&session, GNUTLS_SERVER);
 302
 303   /* avoid calling all the priority functions, since the defaults
 304    * are adequate.
 305    */
 306   gnutls_set_default_priority (session);
 307
 308   gnutls_credentials_set (session, GNUTLS_CRD_CERTIFICATE, x509_cred);
 309
 310   /* request client certificate if any.
 311    */
 312   gnutls_certificate_server_set_request (session, GNUTLS_CERT_REQUEST);
 313
 314   gnutls_dh_set_prime_bits (session, DH_BITS);
 315
 316   return session;
 317 }
 318
 319 static gnutls_dh_params_t dh_params;
 320
 321 static int
 322 generate_dh_params (void)
 323 {
 324   const gnutls_datum_t p3 = { (void *) pkcs3, strlen (pkcs3) };
 325   /* Generate Diffie-Hellman parameters - for use with DHE
 326    * kx algorithms. These should be discarded and regenerated
 327    * once a day, once a week or once a month. Depending on the
 328    * security requirements.
 329    */
 330   gnutls_dh_params_init (&dh_params);
 331   return gnutls_dh_params_import_pkcs3 (dh_params, &p3, GNUTLS_X509_FMT_PEM);
 332 }
 333
 334 int err, listen_sd, i;
 335 int sd, ret;
 336 struct sockaddr_in sa_serv;
 337 struct sockaddr_in sa_cli;
 338 socklen_t client_len;
 339 char topbuf[512];
 340 gnutls_session_t session;
 341 char buffer[MAX_BUF + 1];
 342 int optval = 1;
 343
 344
 345 static unsigned char server_cert_pem[] =
 346   "-----BEGIN CERTIFICATE-----\n"
 347   "MIICVjCCAcGgAwIBAgIERiYdMTALBgkqhkiG9w0BAQUwGTEXMBUGA1UEAxMOR251\n"
 348   "VExTIHRlc3QgQ0EwHhcNMDcwNDE4MTMyOTIxWhcNMDgwNDE3MTMyOTIxWjA3MRsw\n"
 349   "GQYDVQQKExJHbnVUTFMgdGVzdCBzZXJ2ZXIxGDAWBgNVBAMTD3Rlc3QuZ251dGxz\n"
 350   "Lm9yZzCBnDALBgkqhkiG9w0BAQEDgYwAMIGIAoGA17pcr6MM8C6pJ1aqU46o63+B\n"
 351   "dUxrmL5K6rce+EvDasTaDQC46kwTHzYWk95y78akXrJutsoKiFV1kJbtple8DDt2\n"
 352   "DZcevensf9Op7PuFZKBroEjOd35znDET/z3IrqVgbtm2jFqab7a+n2q9p/CgMyf1\n"
 353   "tx2S5Zacc1LWn9bIjrECAwEAAaOBkzCBkDAMBgNVHRMBAf8EAjAAMBoGA1UdEQQT\n"
 354   "MBGCD3Rlc3QuZ251dGxzLm9yZzATBgNVHSUEDDAKBggrBgEFBQcDATAPBgNVHQ8B\n"
 355   "Af8EBQMDB6AAMB0GA1UdDgQWBBTrx0Vu5fglyoyNgw106YbU3VW0dTAfBgNVHSME\n"
 356   "GDAWgBTpPBz7rZJu5gakViyi4cBTJ8jylTALBgkqhkiG9w0BAQUDgYEAaFEPTt+7\n"
 357   "bzvBuOf7+QmeQcn29kT6Bsyh1RHJXf8KTk5QRfwp6ogbp94JQWcNQ/S7YDFHglD1\n"
 358   "AwUNBRXwd3riUsMnsxgeSDxYBfJYbDLeohNBsqaPDJb7XailWbMQKfAbFQ8cnOxg\n"
 359   "rOKLUQRWJ0K3HyXRMhbqjdLIaQiCvQLuizo=\n" "-----END CERTIFICATE-----\n";
 360
 361 const gnutls_datum_t server_cert = { server_cert_pem,
 362   sizeof (server_cert_pem)
 363 };
 364
 365 static unsigned char server_key_pem[] =
 366   "-----BEGIN RSA PRIVATE KEY-----\n"
 367   "MIICXAIBAAKBgQDXulyvowzwLqknVqpTjqjrf4F1TGuYvkrqtx74S8NqxNoNALjq\n"
 368   "TBMfNhaT3nLvxqResm62ygqIVXWQlu2mV7wMO3YNlx696ex/06ns+4VkoGugSM53\n"
 369   "fnOcMRP/PciupWBu2baMWppvtr6far2n8KAzJ/W3HZLllpxzUtaf1siOsQIDAQAB\n"
 370   "AoGAYAFyKkAYC/PYF8e7+X+tsVCHXppp8AoP8TEZuUqOZz/AArVlle/ROrypg5kl\n"
 371   "8YunrvUdzH9R/KZ7saNZlAPLjZyFG9beL/am6Ai7q7Ma5HMqjGU8kTEGwD7K+lbG\n"
 372   "iomokKMOl+kkbY/2sI5Czmbm+/PqLXOjtVc5RAsdbgvtmvkCQQDdV5QuU8jap8Hs\n"
 373   "Eodv/tLJ2z4+SKCV2k/7FXSKWe0vlrq0cl2qZfoTUYRnKRBcWxc9o92DxK44wgPi\n"
 374   "oMQS+O7fAkEA+YG+K9e60sj1K4NYbMPAbYILbZxORDecvP8lcphvwkOVUqbmxOGh\n"
 375   "XRmTZUuhBrJhJKKf6u7gf3KWlPl6ShKEbwJASC118cF6nurTjuLf7YKARDjNTEws\n"
 376   "qZEeQbdWYINAmCMj0RH2P0mvybrsXSOD5UoDAyO7aWuqkHGcCLv6FGG+qwJAOVqq\n"
 377   "tXdUucl6GjOKKw5geIvRRrQMhb/m5scb+5iw8A4LEEHPgGiBaF5NtJZLALgWfo5n\n"
 378   "hmC8+G8F0F78znQtPwJBANexu+Tg5KfOnzSILJMo3oXiXhf5PqXIDmbN0BKyCKAQ\n"
 379   "LfkcEcUbVfmDaHpvzwY9VEaoMOKVLitETXdNSxVpvWM=\n"
 380   "-----END RSA PRIVATE KEY-----\n";
 381
 382 const gnutls_datum_t server_key = { server_key_pem,
 383   sizeof (server_key_pem)
 384 };
 385
 386 static void
 387 server_start (void)
 388 {
 389   /* Socket operations
 390    */
 391   listen_sd = socket (AF_INET, SOCK_STREAM, 0);
 392   if (err == -1)
 393     {
 394       perror ("socket");
 395       fail ("server: socket failed\n");
 396       return;
 397     }
 398
 399   memset (&sa_serv, '\0', sizeof (sa_serv));
 400   sa_serv.sin_family = AF_INET;
 401   sa_serv.sin_addr.s_addr = INADDR_ANY;
 402   sa_serv.sin_port = htons (PORT);      /* Server Port number */
 403
 404   setsockopt (listen_sd, SOL_SOCKET, SO_REUSEADDR, (void *) &optval,
 405               sizeof (int));
 406
 407   err = bind (listen_sd, (SA *) & sa_serv, sizeof (sa_serv));
 408   if (err == -1)
 409     {
 410       perror ("bind");
 411       fail ("server: bind failed\n");
 412       return;
 413     }
 414
 415   err = listen (listen_sd, 1024);
 416   if (err == -1)
 417     {
 418       perror ("listen");
 419       fail ("server: listen failed\n");
 420       return;
 421     }
 422
 423   if (debug)
 424     success ("server: ready. Listening to port '%d'.\n", PORT);
 425 }
 426
 427 static void
 428 server (void)
 429 {
 430   /* this must be called once in the program
 431    */
 432   gnutls_global_init ();
 433
 434   gnutls_global_set_log_function (tls_log_func);
 435   if (debug)
 436     gnutls_global_set_log_level (4711);
 437
 438   gnutls_certificate_allocate_credentials (&x509_cred);
 439   gnutls_certificate_set_x509_trust_mem (x509_cred, &ca, GNUTLS_X509_FMT_PEM);
 440
 441   gnutls_certificate_set_x509_key_mem (x509_cred, &server_cert, &server_key,
 442                                        GNUTLS_X509_FMT_PEM);
 443
 444   if (debug)
 445     success ("Launched, generating DH parameters...\n");
 446
 447   generate_dh_params ();
 448
 449   gnutls_certificate_set_dh_params (x509_cred, dh_params);
 450
 451   client_len = sizeof (sa_cli);
 452
 453   session = initialize_tls_session ();
 454
 455   sd = accept (listen_sd, (SA *) & sa_cli, &client_len);
 456
 457   if (debug)
 458     success ("server: connection from %s, port %d\n",
 459              inet_ntop (AF_INET, &sa_cli.sin_addr, topbuf,
 460                         sizeof (topbuf)), ntohs (sa_cli.sin_port));
 461
 462   gnutls_transport_set_ptr (session, (gnutls_transport_ptr_t) sd);
 463   ret = gnutls_handshake (session);
 464   if (ret < 0)
 465     {
 466       close (sd);
 467       gnutls_deinit (session);
 468       fail ("server: Handshake has failed (%s)\n\n", gnutls_strerror (ret));
 469       return;
 470     }
 471   if (debug)
 472     success ("server: Handshake was completed\n");
 473
 474   if (debug)
 475     success ("server: TLS version is: %s\n",
 476              gnutls_protocol_get_name (gnutls_protocol_get_version
 477                                        (session)));
 478
 479   /* see the Getting peer's information example */
 480   if (debug)
 481     print_info (session);
 482
 483   i = 0;
 484   for (;;)
 485     {
 486       memset (buffer, 0, MAX_BUF + 1);
 487       ret = gnutls_record_recv (session, buffer, MAX_BUF);
 488
 489       if (ret == 0)
 490         {
 491           if (debug)
 492             success ("server: Peer has closed the GnuTLS connection\n");
 493           break;
 494         }
 495       else if (ret < 0)
 496         {
 497           fail ("server: Received corrupted data(%d). Closing...\n", ret);
 498           break;
 499         }
 500       else if (ret > 0)
 501         {
 502           /* echo data back to the client
 503            */
 504           gnutls_record_send (session, buffer, strlen (buffer));
 505         }
 506     }
 507   /* do not wait for the peer to close the connection.
 508    */
 509   gnutls_bye (session, GNUTLS_SHUT_WR);
 510
 511   close (sd);
 512   gnutls_deinit (session);
 513
 514   close (listen_sd);
 515
 516   gnutls_certificate_free_credentials (x509_cred);
 517
 518   gnutls_dh_params_deinit (dh_params);
 519
 520   gnutls_global_deinit ();
 521
 522   if (debug)
 523     success ("server: finished\n");
 524 }
 525
 526
 527 void
 528 doit (void)
 529 {
 530   server_start ();
 531   if (error_count)
 532     return;
 533
 534   child = fork ();
 535   if (child < 0)
 536     {
 537       perror ("fork");
 538       fail ("fork");
 539       return;
 540     }
 541
 542   if (child)
 543     {
 544       int status;
 545       /* parent */
 546       server ();
 547       wait (&status);
 548
 549 #if defined WIFEXITED && defined WEXITSTATUS
 550       if (WIFEXITED (status) && WEXITSTATUS (status))
 551         {
 552           fail ("server: client failed with exit status %d\n",
 553                 WEXITSTATUS (status));
 554         }
 555 #endif
 556
 557 #if defined WIFSIGNALED && defined WTERMSIG
 558       if (WIFSIGNALED (status))
 559         {
 560           fail ("server: client failed with fatal signal %d\n",
 561                 WTERMSIG (status));
 562         }
 563 #endif
 564
 565     }
 566   else
 567     client ();
 568 }