apps/s_server.c

   1 /* apps/s_server.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111 /* ====================================================================
 112  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 113  * ECC cipher suite support in OpenSSL originally developed by
 114  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 115  */
 116 /* ====================================================================
 117  * Copyright 2005 Nokia. All rights reserved.
 118  *
 119  * The portions of the attached software ("Contribution") is developed by
 120  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
 121  * license.
 122  *
 123  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
 124  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
 125  * support (see RFC 4279) to OpenSSL.
 126  *
 127  * No patent licenses or other rights except those expressly stated in
 128  * the OpenSSL open source license shall be deemed granted or received
 129  * expressly, by implication, estoppel, or otherwise.
 130  *
 131  * No assurances are provided by Nokia that the Contribution does not
 132  * infringe the patent or other intellectual property rights of any third
 133  * party or that the license provides you with all the necessary rights
 134  * to make use of the Contribution.
 135  *
 136  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
 137  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
 138  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
 139  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
 140  * OTHERWISE.
 141  */
 142
 143 /* Until the key-gen callbacks are modified to use newer prototypes, we allow
 144  * deprecated functions for openssl-internal code */
 145 #ifdef OPENSSL_NO_DEPRECATED
 146 #undef OPENSSL_NO_DEPRECATED
 147 #endif
 148
 149 #include <assert.h>
 150 #include <ctype.h>
 151 #include <stdio.h>
 152 #include <stdlib.h>
 153 #include <string.h>
 154
 155 #include <openssl/e_os2.h>
 156 #ifdef OPENSSL_NO_STDIO
 157 #define APPS_WIN16
 158 #endif
 159
 160 #if !defined(OPENSSL_SYS_NETWARE)  /* conflicts with winsock2 stuff on netware */
 161 #include <sys/types.h>
 162 #endif
 163
 164 /* With IPv6, it looks like Digital has mixed up the proper order of
 165    recursive header file inclusion, resulting in the compiler complaining
 166    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 167    is needed to have fileno() declared correctly...  So let's define u_int */
 168 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 169 #define __U_INT
 170 typedef unsigned int u_int;
 171 #endif
 172
 173 #include <openssl/lhash.h>
 174 #include <openssl/bn.h>
 175 #define USE_SOCKETS
 176 #include "apps.h"
 177 #include <openssl/err.h>
 178 #include <openssl/pem.h>
 179 #include <openssl/x509.h>
 180 #include <openssl/ssl.h>
 181 #include <openssl/rand.h>
 182 #include <openssl/ocsp.h>
 183 #ifndef OPENSSL_NO_DH
 184 #include <openssl/dh.h>
 185 #endif
 186 #ifndef OPENSSL_NO_RSA
 187 #include <openssl/rsa.h>
 188 #endif
 189 #ifndef OPENSSL_NO_SRP
 190 #include <openssl/srp.h>
 191 #endif
 192 #include "s_apps.h"
 193 #include "timeouts.h"
 194
 195 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 196 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 197 #undef FIONBIO
 198 #endif
 199
 200 #if defined(OPENSSL_SYS_BEOS_R5)
 201 #include <fcntl.h>
 202 #endif
 203
 204 #ifndef OPENSSL_NO_RSA
 205 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 206 #endif
 207 static int sv_body(char *hostname, int s, unsigned char *context);
 208 static int www_body(char *hostname, int s, unsigned char *context);
 209 static void close_accept_socket(void );
 210 static void sv_usage(void);
 211 static int init_ssl_connection(SSL *s);
 212 static void print_stats(BIO *bp,SSL_CTX *ctx);
 213 static int generate_session_id(const SSL *ssl, unsigned char *id,
 214                                 unsigned int *id_len);
 215 #ifndef OPENSSL_NO_DH
 216 static DH *load_dh_param(const char *dhfile);
 217 static DH *get_dh512(void);
 218 #endif
 219
 220 #ifdef MONOLITH
 221 static void s_server_init(void);
 222 #endif
 223
 224 #ifndef OPENSSL_NO_DH
 225 static unsigned char dh512_p[]={
 226         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 227         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 228         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 229         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 230         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 231         0x47,0x74,0xE8,0x33,
 232         };
 233 static unsigned char dh512_g[]={
 234         0x02,
 235         };
 236
 237 static DH *get_dh512(void)
 238         {
 239         DH *dh=NULL;
 240
 241         if ((dh=DH_new()) == NULL) return(NULL);
 242         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 243         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 244         if ((dh->p == NULL) || (dh->g == NULL))
 245                 return(NULL);
 246         return(dh);
 247         }
 248 #endif
 249
 250
 251 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 252
 253 #undef BUFSIZZ
 254 #define BUFSIZZ 16*1024
 255 static int bufsize=BUFSIZZ;
 256 static int accept_socket= -1;
 257
 258 #define TEST_CERT       "server.pem"
 259 #ifndef OPENSSL_NO_TLSEXT
 260 #define TEST_CERT2      "server2.pem"
 261 #endif
 262 #undef PROG
 263 #define PROG            s_server_main
 264
 265 extern int verify_depth, verify_return_error;
 266
 267 static char *cipher=NULL;
 268 static int s_server_verify=SSL_VERIFY_NONE;
 269 static int s_server_session_id_context = 1; /* anything will do */
 270 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 271 #ifndef OPENSSL_NO_TLSEXT
 272 static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
 273 static char *curves=NULL;
 274 #endif
 275 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 276 #ifdef FIONBIO
 277 static int s_nbio=0;
 278 #endif
 279 static int s_nbio_test=0;
 280 int s_crlf=0;
 281 static SSL_CTX *ctx=NULL;
 282 #ifndef OPENSSL_NO_TLSEXT
 283 static SSL_CTX *ctx2=NULL;
 284 #endif
 285 static int www=0;
 286
 287 static BIO *bio_s_out=NULL;
 288 static int s_debug=0;
 289 #ifndef OPENSSL_NO_TLSEXT
 290 static int s_tlsextdebug=0;
 291 static int s_tlsextstatus=0;
 292 static int cert_status_cb(SSL *s, void *arg);
 293 #endif
 294 static int s_msg=0;
 295 static int s_quiet=0;
 296
 297 static char *keymatexportlabel=NULL;
 298 static int keymatexportlen=20;
 299
 300 static int hack=0;
 301 #ifndef OPENSSL_NO_ENGINE
 302 static char *engine_id=NULL;
 303 #endif
 304 static const char *session_id_prefix=NULL;
 305
 306 static int enable_timeouts = 0;
 307 static long socket_mtu;
 308 #ifndef OPENSSL_NO_DTLS1
 309 static int cert_chain = 0;
 310 #endif
 311
 312
 313 #ifndef OPENSSL_NO_PSK
 314 static char *psk_identity="Client_identity";
 315 char *psk_key=NULL; /* by default PSK is not used */
 316
 317 static unsigned int psk_server_cb(SSL *ssl, const char *identity,
 318         unsigned char *psk, unsigned int max_psk_len)
 319         {
 320         unsigned int psk_len = 0;
 321         int ret;
 322         BIGNUM *bn = NULL;
 323
 324         if (s_debug)
 325                 BIO_printf(bio_s_out,"psk_server_cb\n");
 326         if (!identity)
 327                 {
 328                 BIO_printf(bio_err,"Error: client did not send PSK identity\n");
 329                 goto out_err;
 330                 }
 331         if (s_debug)
 332                 BIO_printf(bio_s_out,"identity_len=%d identity=%s\n",
 333                         identity ? (int)strlen(identity) : 0, identity);
 334
 335         /* here we could lookup the given identity e.g. from a database */
 336         if (strcmp(identity, psk_identity) != 0)
 337                 {
 338                 BIO_printf(bio_s_out, "PSK error: client identity not found"
 339                            " (got '%s' expected '%s')\n", identity,
 340                            psk_identity);
 341                 goto out_err;
 342                 }
 343         if (s_debug)
 344                 BIO_printf(bio_s_out, "PSK client identity found\n");
 345
 346         /* convert the PSK key to binary */
 347         ret = BN_hex2bn(&bn, psk_key);
 348         if (!ret)
 349                 {
 350                 BIO_printf(bio_err,"Could not convert PSK key '%s' to BIGNUM\n", psk_key);
 351                 if (bn)
 352                         BN_free(bn);
 353                 return 0;
 354                 }
 355         if (BN_num_bytes(bn) > (int)max_psk_len)
 356                 {
 357                 BIO_printf(bio_err,"psk buffer of callback is too small (%d) for key (%d)\n",
 358                         max_psk_len, BN_num_bytes(bn));
 359                 BN_free(bn);
 360                 return 0;
 361                 }
 362
 363         ret = BN_bn2bin(bn, psk);
 364         BN_free(bn);
 365
 366         if (ret < 0)
 367                 goto out_err;
 368         psk_len = (unsigned int)ret;
 369
 370         if (s_debug)
 371                 BIO_printf(bio_s_out, "fetched PSK len=%d\n", psk_len);
 372         return psk_len;
 373  out_err:
 374         if (s_debug)
 375                 BIO_printf(bio_err, "Error in PSK server callback\n");
 376         return 0;
 377         }
 378 #endif
 379
 380 #ifndef OPENSSL_NO_SRP
 381 /* This is a context that we pass to callbacks */
 382 typedef struct srpsrvparm_st
 383         {
 384         char *login;
 385         SRP_VBASE *vb;
 386         SRP_user_pwd *user;
 387         } srpsrvparm;
 388
 389 /* This callback pretends to require some asynchronous logic in order to obtain
 390    a verifier. When the callback is called for a new connection we return
 391    with a negative value. This will provoke the accept etc to return with
 392    an LOOKUP_X509. The main logic of the reinvokes the suspended call
 393    (which would normally occur after a worker has finished) and we
 394    set the user parameters.
 395 */
 396 static int MS_CALLBACK ssl_srp_server_param_cb(SSL *s, int *ad, void *arg)
 397         {
 398         srpsrvparm *p = (srpsrvparm *)arg;
 399         if (p->login == NULL && p->user == NULL )
 400                 {
 401                 p->login = SSL_get_srp_username(s);
 402                 BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login);
 403                 return (-1) ;
 404                 }
 405
 406         if (p->user == NULL)
 407                 {
 408                 BIO_printf(bio_err, "User %s doesn't exist\n", p->login);
 409                 return SSL3_AL_FATAL;
 410                 }
 411         if (SSL_set_srp_server_param(s, p->user->N, p->user->g, p->user->s, p->user->v,
 412                                      p->user->info) < 0)
 413                 {
 414                 *ad = SSL_AD_INTERNAL_ERROR;
 415                 return SSL3_AL_FATAL;
 416                 }
 417         BIO_printf(bio_err, "SRP parameters set: username = \"%s\" info=\"%s\" \n", p->login,p->user->info);
 418         /* need to check whether there are memory leaks */
 419         p->user = NULL;
 420         p->login = NULL;
 421         return SSL_ERROR_NONE;
 422         }
 423
 424 #endif
 425
 426 #ifdef MONOLITH
 427 static void s_server_init(void)
 428         {
 429         accept_socket=-1;
 430         cipher=NULL;
 431         s_server_verify=SSL_VERIFY_NONE;
 432         s_dcert_file=NULL;
 433         s_dkey_file=NULL;
 434         s_cert_file=TEST_CERT;
 435         s_key_file=NULL;
 436 #ifndef OPENSSL_NO_TLSEXT
 437         curves=NULL;
 438         s_cert_file2=TEST_CERT2;
 439         s_key_file2=NULL;
 440         ctx2=NULL;
 441 #endif
 442 #ifdef FIONBIO
 443         s_nbio=0;
 444 #endif
 445         s_nbio_test=0;
 446         ctx=NULL;
 447         www=0;
 448
 449         bio_s_out=NULL;
 450         s_debug=0;
 451         s_msg=0;
 452         s_quiet=0;
 453         hack=0;
 454 #ifndef OPENSSL_NO_ENGINE
 455         engine_id=NULL;
 456 #endif
 457         }
 458 #endif
 459
 460 static void sv_usage(void)
 461         {
 462         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 463         BIO_printf(bio_err,"\n");
 464         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 465         BIO_printf(bio_err," -context arg  - set session ID context\n");
 466         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 467         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 468         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
 469         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 470         BIO_printf(bio_err," -crl_check    - check the peer certificate has not been revoked by its CA.\n" \
 471                            "                 The CRL(s) are appended to the certificate file\n");
 472         BIO_printf(bio_err," -crl_check_all - check the peer certificate has not been revoked by its CA\n" \
 473                            "                 or any other CRL in the CA chain. CRL(s) are appened to the\n" \
 474                            "                 the certificate file.\n");
 475         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 476         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
 477         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 478         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
 479         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 480         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 481         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
 482         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 483         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
 484         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
 485         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 486         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 487 #ifndef OPENSSL_NO_ECDH
 488         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
 489                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
 490                            "                 (default is nistp256).\n");
 491 #endif
 492 #ifdef FIONBIO
 493         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 494 #endif
 495         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 496         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 497         BIO_printf(bio_err," -debug        - Print more output\n");
 498         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 499         BIO_printf(bio_err," -state        - Print the SSL states\n");
 500         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 501         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 502         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 503         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 504         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 505         BIO_printf(bio_err," -quiet        - No server output\n");
 506         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 507 #ifndef OPENSSL_NO_PSK
 508         BIO_printf(bio_err," -psk_hint arg - PSK identity hint to use\n");
 509         BIO_printf(bio_err," -psk arg      - PSK in hex (without 0x)\n");
 510 # ifndef OPENSSL_NO_JPAKE
 511         BIO_printf(bio_err," -jpake arg    - JPAKE secret to use\n");
 512 # endif
 513 #endif
 514 #ifndef OPENSSL_NO_SRP
 515         BIO_printf(bio_err," -srpvfile file      - The verifier file for SRP\n");
 516         BIO_printf(bio_err," -srpuserseed string - A seed string for a default user salt.\n");
 517 #endif
 518         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 519         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 520         BIO_printf(bio_err," -tls1_2       - Just talk TLSv1.2\n");
 521         BIO_printf(bio_err," -tls1_1       - Just talk TLSv1.1\n");
 522         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 523         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
 524         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
 525         BIO_printf(bio_err," -mtu          - Set link layer MTU\n");
 526         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
 527         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 528         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 529         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 530         BIO_printf(bio_err," -no_tls1_1    - Just disable TLSv1.1\n");
 531         BIO_printf(bio_err," -no_tls1_2    - Just disable TLSv1.2\n");
 532 #ifndef OPENSSL_NO_DH
 533         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 534 #endif
 535 #ifndef OPENSSL_NO_ECDH
 536         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
 537 #endif
 538         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 539         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 540         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 541         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 542         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
 543 #ifndef OPENSSL_NO_ENGINE
 544         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 545 #endif
 546         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
 547         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 548 #ifndef OPENSSL_NO_TLSEXT
 549         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
 550         BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
 551         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
 552         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
 553         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
 554         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
 555         BIO_printf(bio_err," -tlsextdebug  - hex dump of all TLS extensions received\n");
 556         BIO_printf(bio_err," -no_ticket    - disable use of RFC4507bis session tickets\n");
 557         BIO_printf(bio_err," -legacy_renegotiation - enable use of legacy renegotiation (dangerous)\n");
 558 # ifndef OPENSSL_NO_NEXTPROTONEG
 559         BIO_printf(bio_err," -nextprotoneg arg - set the advertised protocols for the NPN extension (comma-separated list)\n");
 560 # endif
 561         BIO_printf(bio_err," -use_srtp profiles - Offer SRTP key management with a colon-separated profile list\n");
 562 #endif
 563         BIO_printf(bio_err," -keymatexport label   - Export keying material using label\n");
 564         BIO_printf(bio_err," -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
 565         }
 566
 567 static int local_argc=0;
 568 static char **local_argv;
 569
 570 #ifdef CHARSET_EBCDIC
 571 static int ebcdic_new(BIO *bi);
 572 static int ebcdic_free(BIO *a);
 573 static int ebcdic_read(BIO *b, char *out, int outl);
 574 static int ebcdic_write(BIO *b, const char *in, int inl);
 575 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
 576 static int ebcdic_gets(BIO *bp, char *buf, int size);
 577 static int ebcdic_puts(BIO *bp, const char *str);
 578
 579 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 580 static BIO_METHOD methods_ebcdic=
 581         {
 582         BIO_TYPE_EBCDIC_FILTER,
 583         "EBCDIC/ASCII filter",
 584         ebcdic_write,
 585         ebcdic_read,
 586         ebcdic_puts,
 587         ebcdic_gets,
 588         ebcdic_ctrl,
 589         ebcdic_new,
 590         ebcdic_free,
 591         };
 592
 593 typedef struct
 594 {
 595         size_t  alloced;
 596         char    buff[1];
 597 } EBCDIC_OUTBUFF;
 598
 599 BIO_METHOD *BIO_f_ebcdic_filter()
 600 {
 601         return(&methods_ebcdic);
 602 }
 603
 604 static int ebcdic_new(BIO *bi)
 605 {
 606         EBCDIC_OUTBUFF *wbuf;
 607
 608         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 609         wbuf->alloced = 1024;
 610         wbuf->buff[0] = '\0';
 611
 612         bi->ptr=(char *)wbuf;
 613         bi->init=1;
 614         bi->flags=0;
 615         return(1);
 616 }
 617
 618 static int ebcdic_free(BIO *a)
 619 {
 620         if (a == NULL) return(0);
 621         if (a->ptr != NULL)
 622                 OPENSSL_free(a->ptr);
 623         a->ptr=NULL;
 624         a->init=0;
 625         a->flags=0;
 626         return(1);
 627 }
 628
 629 static int ebcdic_read(BIO *b, char *out, int outl)
 630 {
 631         int ret=0;
 632
 633         if (out == NULL || outl == 0) return(0);
 634         if (b->next_bio == NULL) return(0);
 635
 636         ret=BIO_read(b->next_bio,out,outl);
 637         if (ret > 0)
 638                 ascii2ebcdic(out,out,ret);
 639         return(ret);
 640 }
 641
 642 static int ebcdic_write(BIO *b, const char *in, int inl)
 643 {
 644         EBCDIC_OUTBUFF *wbuf;
 645         int ret=0;
 646         int num;
 647         unsigned char n;
 648
 649         if ((in == NULL) || (inl <= 0)) return(0);
 650         if (b->next_bio == NULL) return(0);
 651
 652         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 653
 654         if (inl > (num = wbuf->alloced))
 655         {
 656                 num = num + num;  /* double the size */
 657                 if (num < inl)
 658                         num = inl;
 659                 OPENSSL_free(wbuf);
 660                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 661
 662                 wbuf->alloced = num;
 663                 wbuf->buff[0] = '\0';
 664
 665                 b->ptr=(char *)wbuf;
 666         }
 667
 668         ebcdic2ascii(wbuf->buff, in, inl);
 669
 670         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 671
 672         return(ret);
 673 }
 674
 675 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
 676 {
 677         long ret;
 678
 679         if (b->next_bio == NULL) return(0);
 680         switch (cmd)
 681         {
 682         case BIO_CTRL_DUP:
 683                 ret=0L;
 684                 break;
 685         default:
 686                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 687                 break;
 688         }
 689         return(ret);
 690 }
 691
 692 static int ebcdic_gets(BIO *bp, char *buf, int size)
 693 {
 694         int i, ret=0;
 695         if (bp->next_bio == NULL) return(0);
 696 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 697         for (i=0; i<size-1; ++i)
 698         {
 699                 ret = ebcdic_read(bp,&buf[i],1);
 700                 if (ret <= 0)
 701                         break;
 702                 else if (buf[i] == '\n')
 703                 {
 704                         ++i;
 705                         break;
 706                 }
 707         }
 708         if (i < size)
 709                 buf[i] = '\0';
 710         return (ret < 0 && i == 0) ? ret : i;
 711 }
 712
 713 static int ebcdic_puts(BIO *bp, const char *str)
 714 {
 715         if (bp->next_bio == NULL) return(0);
 716         return ebcdic_write(bp, str, strlen(str));
 717 }
 718 #endif
 719
 720 #ifndef OPENSSL_NO_TLSEXT
 721
 722 /* This is a context that we pass to callbacks */
 723 typedef struct tlsextctx_st {
 724    char * servername;
 725    BIO * biodebug;
 726    int extension_error;
 727 } tlsextctx;
 728
 729
 730 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 731         {
 732         tlsextctx * p = (tlsextctx *) arg;
 733         const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 734         if (servername && p->biodebug)
 735                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
 736
 737         if (!p->servername)
 738                 return SSL_TLSEXT_ERR_NOACK;
 739
 740         if (servername)
 741                 {
 742                 if (strcmp(servername,p->servername))
 743                         return p->extension_error;
 744                 if (ctx2)
 745                         {
 746                         BIO_printf(p->biodebug,"Switching server context.\n");
 747                         SSL_set_SSL_CTX(s,ctx2);
 748                         }
 749                 }
 750         return SSL_TLSEXT_ERR_OK;
 751 }
 752
 753 /* Structure passed to cert status callback */
 754
 755 typedef struct tlsextstatusctx_st {
 756    /* Default responder to use */
 757    char *host, *path, *port;
 758    int use_ssl;
 759    int timeout;
 760    BIO *err;
 761    int verbose;
 762 } tlsextstatusctx;
 763
 764 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
 765
 766 /* Certificate Status callback. This is called when a client includes a
 767  * certificate status request extension.
 768  *
 769  * This is a simplified version. It examines certificates each time and
 770  * makes one OCSP responder query for each request.
 771  *
 772  * A full version would store details such as the OCSP certificate IDs and
 773  * minimise the number of OCSP responses by caching them until they were
 774  * considered "expired".
 775  */
 776
 777 static int cert_status_cb(SSL *s, void *arg)
 778         {
 779         tlsextstatusctx *srctx = arg;
 780         BIO *err = srctx->err;
 781         char *host, *port, *path;
 782         int use_ssl;
 783         unsigned char *rspder = NULL;
 784         int rspderlen;
 785         STACK_OF(OPENSSL_STRING) *aia = NULL;
 786         X509 *x = NULL;
 787         X509_STORE_CTX inctx;
 788         X509_OBJECT obj;
 789         OCSP_REQUEST *req = NULL;
 790         OCSP_RESPONSE *resp = NULL;
 791         OCSP_CERTID *id = NULL;
 792         STACK_OF(X509_EXTENSION) *exts;
 793         int ret = SSL_TLSEXT_ERR_NOACK;
 794         int i;
 795 #if 0
 796 STACK_OF(OCSP_RESPID) *ids;
 797 SSL_get_tlsext_status_ids(s, &ids);
 798 BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
 799 #endif
 800         if (srctx->verbose)
 801                 BIO_puts(err, "cert_status: callback called\n");
 802         /* Build up OCSP query from server certificate */
 803         x = SSL_get_certificate(s);
 804         aia = X509_get1_ocsp(x);
 805         if (aia)
 806                 {
 807                 if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0),
 808                         &host, &port, &path, &use_ssl))
 809                         {
 810                         BIO_puts(err, "cert_status: can't parse AIA URL\n");
 811                         goto err;
 812                         }
 813                 if (srctx->verbose)
 814                         BIO_printf(err, "cert_status: AIA URL: %s\n",
 815                                         sk_OPENSSL_STRING_value(aia, 0));
 816                 }
 817         else
 818                 {
 819                 if (!srctx->host)
 820                         {
 821                         BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
 822                         goto done;
 823                         }
 824                 host = srctx->host;
 825                 path = srctx->path;
 826                 port = srctx->port;
 827                 use_ssl = srctx->use_ssl;
 828                 }
 829
 830         if (!X509_STORE_CTX_init(&inctx,
 831                                 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
 832                                 NULL, NULL))
 833                 goto err;
 834         if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
 835                                 X509_get_issuer_name(x),&obj) <= 0)
 836                 {
 837                 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
 838                 X509_STORE_CTX_cleanup(&inctx);
 839                 goto done;
 840                 }
 841         req = OCSP_REQUEST_new();
 842         if (!req)
 843                 goto err;
 844         id = OCSP_cert_to_id(NULL, x, obj.data.x509);
 845         X509_free(obj.data.x509);
 846         X509_STORE_CTX_cleanup(&inctx);
 847         if (!id)
 848                 goto err;
 849         if (!OCSP_request_add0_id(req, id))
 850                 goto err;
 851         id = NULL;
 852         /* Add any extensions to the request */
 853         SSL_get_tlsext_status_exts(s, &exts);
 854         for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
 855                 {
 856                 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
 857                 if (!OCSP_REQUEST_add_ext(req, ext, -1))
 858                         goto err;
 859                 }
 860         resp = process_responder(err, req, host, path, port, use_ssl, NULL,
 861                                         srctx->timeout);
 862         if (!resp)
 863                 {
 864                 BIO_puts(err, "cert_status: error querying responder\n");
 865                 goto done;
 866                 }
 867         rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
 868         if (rspderlen <= 0)
 869                 goto err;
 870         SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
 871         if (srctx->verbose)
 872                 {
 873                 BIO_puts(err, "cert_status: ocsp response sent:\n");
 874                 OCSP_RESPONSE_print(err, resp, 2);
 875                 }
 876         ret = SSL_TLSEXT_ERR_OK;
 877         done:
 878         if (ret != SSL_TLSEXT_ERR_OK)
 879                 ERR_print_errors(err);
 880         if (aia)
 881                 {
 882                 OPENSSL_free(host);
 883                 OPENSSL_free(path);
 884                 OPENSSL_free(port);
 885                 X509_email_free(aia);
 886                 }
 887         if (id)
 888                 OCSP_CERTID_free(id);
 889         if (req)
 890                 OCSP_REQUEST_free(req);
 891         if (resp)
 892                 OCSP_RESPONSE_free(resp);
 893         return ret;
 894         err:
 895         ret = SSL_TLSEXT_ERR_ALERT_FATAL;
 896         goto done;
 897         }
 898
 899 # ifndef OPENSSL_NO_NEXTPROTONEG
 900 /* This is the context that we pass to next_proto_cb */
 901 typedef struct tlsextnextprotoctx_st {
 902         unsigned char *data;
 903         unsigned int len;
 904 } tlsextnextprotoctx;
 905
 906 static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg)
 907         {
 908         tlsextnextprotoctx *next_proto = arg;
 909
 910         *data = next_proto->data;
 911         *len = next_proto->len;
 912
 913         return SSL_TLSEXT_ERR_OK;
 914         }
 915 # endif  /* ndef OPENSSL_NO_NEXTPROTONEG */
 916
 917
 918 #endif
 919
 920 int MAIN(int, char **);
 921
 922 #ifndef OPENSSL_NO_JPAKE
 923 static char *jpake_secret = NULL;
 924 #endif
 925 #ifndef OPENSSL_NO_SRP
 926         static srpsrvparm srp_callback_parm;
 927 #endif
 928 static char *srtp_profiles = NULL;
 929
 930 int MAIN(int argc, char *argv[])
 931         {
 932         X509_VERIFY_PARAM *vpm = NULL;
 933         int badarg = 0;
 934         short port=PORT;
 935         char *CApath=NULL,*CAfile=NULL;
 936         unsigned char *context = NULL;
 937         char *dhfile = NULL;
 938 #ifndef OPENSSL_NO_ECDH
 939         char *named_curve = NULL;
 940 #endif
 941         int badop=0,bugs=0;
 942         int ret=1;
 943         int off=0;
 944         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
 945         int state=0;
 946         const SSL_METHOD *meth=NULL;
 947         int socket_type=SOCK_STREAM;
 948         ENGINE *e=NULL;
 949         char *inrand=NULL;
 950         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
 951         char *passarg = NULL, *pass = NULL;
 952         char *dpassarg = NULL, *dpass = NULL;
 953         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
 954         X509 *s_cert = NULL, *s_dcert = NULL;
 955         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
 956         int no_cache = 0;
 957 #ifndef OPENSSL_NO_TLSEXT
 958         EVP_PKEY *s_key2 = NULL;
 959         X509 *s_cert2 = NULL;
 960         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
 961 # ifndef OPENSSL_NO_NEXTPROTONEG
 962         const char *next_proto_neg_in = NULL;
 963         tlsextnextprotoctx next_proto;
 964 # endif
 965 #endif
 966 #ifndef OPENSSL_NO_PSK
 967         /* by default do not send a PSK identity hint */
 968         static char *psk_identity_hint=NULL;
 969 #endif
 970 #ifndef OPENSSL_NO_SRP
 971         char *srpuserseed = NULL;
 972         char *srp_verifier_file = NULL;
 973 #endif
 974         meth=SSLv23_server_method();
 975
 976         local_argc=argc;
 977         local_argv=argv;
 978
 979         apps_startup();
 980 #ifdef MONOLITH
 981         s_server_init();
 982 #endif
 983
 984         if (bio_err == NULL)
 985                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 986
 987         if (!load_config(bio_err, NULL))
 988                 goto end;
 989
 990         verify_depth=0;
 991 #ifdef FIONBIO
 992         s_nbio=0;
 993 #endif
 994         s_nbio_test=0;
 995
 996         argc--;
 997         argv++;
 998
 999         while (argc >= 1)
1000                 {
1001                 if      ((strcmp(*argv,"-port") == 0) ||
1002                          (strcmp(*argv,"-accept") == 0))
1003                         {
1004                         if (--argc < 1) goto bad;
1005                         if (!extract_port(*(++argv),&port))
1006                                 goto bad;
1007                         }
1008                 else if (strcmp(*argv,"-verify") == 0)
1009                         {
1010                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
1011                         if (--argc < 1) goto bad;
1012                         verify_depth=atoi(*(++argv));
1013                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
1014                         }
1015                 else if (strcmp(*argv,"-Verify") == 0)
1016                         {
1017                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
1018                                 SSL_VERIFY_CLIENT_ONCE;
1019                         if (--argc < 1) goto bad;
1020                         verify_depth=atoi(*(++argv));
1021                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
1022                         }
1023                 else if (strcmp(*argv,"-context") == 0)
1024                         {
1025                         if (--argc < 1) goto bad;
1026                         context= (unsigned char *)*(++argv);
1027                         }
1028                 else if (strcmp(*argv,"-cert") == 0)
1029                         {
1030                         if (--argc < 1) goto bad;
1031                         s_cert_file= *(++argv);
1032                         }
1033                 else if (strcmp(*argv,"-certform") == 0)
1034                         {
1035                         if (--argc < 1) goto bad;
1036                         s_cert_format = str2fmt(*(++argv));
1037                         }
1038                 else if (strcmp(*argv,"-key") == 0)
1039                         {
1040                         if (--argc < 1) goto bad;
1041                         s_key_file= *(++argv);
1042                         }
1043                 else if (strcmp(*argv,"-keyform") == 0)
1044                         {
1045                         if (--argc < 1) goto bad;
1046                         s_key_format = str2fmt(*(++argv));
1047                         }
1048                 else if (strcmp(*argv,"-pass") == 0)
1049                         {
1050                         if (--argc < 1) goto bad;
1051                         passarg = *(++argv);
1052                         }
1053                 else if (strcmp(*argv,"-dhparam") == 0)
1054                         {
1055                         if (--argc < 1) goto bad;
1056                         dhfile = *(++argv);
1057                         }
1058 #ifndef OPENSSL_NO_ECDH
1059                 else if (strcmp(*argv,"-named_curve") == 0)
1060                         {
1061                         if (--argc < 1) goto bad;
1062                         named_curve = *(++argv);
1063                         }
1064 #endif
1065                 else if (strcmp(*argv,"-dcertform") == 0)
1066                         {
1067                         if (--argc < 1) goto bad;
1068                         s_dcert_format = str2fmt(*(++argv));
1069                         }
1070                 else if (strcmp(*argv,"-dcert") == 0)
1071                         {
1072                         if (--argc < 1) goto bad;
1073                         s_dcert_file= *(++argv);
1074                         }
1075                 else if (strcmp(*argv,"-dkeyform") == 0)
1076                         {
1077                         if (--argc < 1) goto bad;
1078                         s_dkey_format = str2fmt(*(++argv));
1079                         }
1080                 else if (strcmp(*argv,"-dpass") == 0)
1081                         {
1082                         if (--argc < 1) goto bad;
1083                         dpassarg = *(++argv);
1084                         }
1085                 else if (strcmp(*argv,"-dkey") == 0)
1086                         {
1087                         if (--argc < 1) goto bad;
1088                         s_dkey_file= *(++argv);
1089                         }
1090                 else if (strcmp(*argv,"-nocert") == 0)
1091                         {
1092                         nocert=1;
1093                         }
1094                 else if (strcmp(*argv,"-CApath") == 0)
1095                         {
1096                         if (--argc < 1) goto bad;
1097                         CApath= *(++argv);
1098                         }
1099                 else if (strcmp(*argv,"-no_cache") == 0)
1100                         no_cache = 1;
1101                 else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm))
1102                         {
1103                         if (badarg)
1104                                 goto bad;
1105                         continue;
1106                         }
1107                 else if (strcmp(*argv,"-verify_return_error") == 0)
1108                         verify_return_error = 1;
1109                 else if (strcmp(*argv,"-serverpref") == 0)
1110                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
1111                 else if (strcmp(*argv,"-legacy_renegotiation") == 0)
1112                         off|=SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION;
1113                 else if (strcmp(*argv,"-cipher") == 0)
1114                         {
1115                         if (--argc < 1) goto bad;
1116                         cipher= *(++argv);
1117                         }
1118                 else if (strcmp(*argv,"-CAfile") == 0)
1119                         {
1120                         if (--argc < 1) goto bad;
1121                         CAfile= *(++argv);
1122                         }
1123 #ifdef FIONBIO
1124                 else if (strcmp(*argv,"-nbio") == 0)
1125                         { s_nbio=1; }
1126 #endif
1127                 else if (strcmp(*argv,"-nbio_test") == 0)
1128                         {
1129 #ifdef FIONBIO
1130                         s_nbio=1;
1131 #endif
1132                         s_nbio_test=1;
1133                         }
1134                 else if (strcmp(*argv,"-debug") == 0)
1135                         { s_debug=1; }
1136 #ifndef OPENSSL_NO_TLSEXT
1137                 else if (strcmp(*argv,"-tlsextdebug") == 0)
1138                         s_tlsextdebug=1;
1139                 else if (strcmp(*argv,"-status") == 0)
1140                         s_tlsextstatus=1;
1141                 else if (strcmp(*argv,"-status_verbose") == 0)
1142                         {
1143                         s_tlsextstatus=1;
1144                         tlscstatp.verbose = 1;
1145                         }
1146                 else if (!strcmp(*argv, "-status_timeout"))
1147                         {
1148                         s_tlsextstatus=1;
1149                         if (--argc < 1) goto bad;
1150                         tlscstatp.timeout = atoi(*(++argv));
1151                         }
1152                 else if (!strcmp(*argv, "-status_url"))
1153                         {
1154                         s_tlsextstatus=1;
1155                         if (--argc < 1) goto bad;
1156                         if (!OCSP_parse_url(*(++argv),
1157                                         &tlscstatp.host,
1158                                         &tlscstatp.port,
1159                                         &tlscstatp.path,
1160                                         &tlscstatp.use_ssl))
1161                                 {
1162                                 BIO_printf(bio_err, "Error parsing URL\n");
1163                                 goto bad;
1164                                 }
1165                         }
1166                 else if (strcmp(*argv,"-curves") == 0)
1167                         {
1168                         if (--argc < 1) goto bad;
1169                         curves= *(++argv);
1170                         }
1171 #endif
1172                 else if (strcmp(*argv,"-msg") == 0)
1173                         { s_msg=1; }
1174                 else if (strcmp(*argv,"-hack") == 0)
1175                         { hack=1; }
1176                 else if (strcmp(*argv,"-state") == 0)
1177                         { state=1; }
1178                 else if (strcmp(*argv,"-crlf") == 0)
1179                         { s_crlf=1; }
1180                 else if (strcmp(*argv,"-quiet") == 0)
1181                         { s_quiet=1; }
1182                 else if (strcmp(*argv,"-bugs") == 0)
1183                         { bugs=1; }
1184                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
1185                         { no_tmp_rsa=1; }
1186                 else if (strcmp(*argv,"-no_dhe") == 0)
1187                         { no_dhe=1; }
1188                 else if (strcmp(*argv,"-no_ecdhe") == 0)
1189                         { no_ecdhe=1; }
1190 #ifndef OPENSSL_NO_PSK
1191                 else if (strcmp(*argv,"-psk_hint") == 0)
1192                         {
1193                         if (--argc < 1) goto bad;
1194                         psk_identity_hint= *(++argv);
1195                         }
1196                 else if (strcmp(*argv,"-psk") == 0)
1197                         {
1198                         size_t i;
1199
1200                         if (--argc < 1) goto bad;
1201                         psk_key=*(++argv);
1202                         for (i=0; i<strlen(psk_key); i++)
1203                                 {
1204                                 if (isxdigit((unsigned char)psk_key[i]))
1205                                         continue;
1206                                 BIO_printf(bio_err,"Not a hex number '%s'\n",*argv);
1207                                 goto bad;
1208                                 }
1209                         }
1210 #endif
1211 #ifndef OPENSSL_NO_SRP
1212                 else if (strcmp(*argv, "-srpvfile") == 0)
1213                         {
1214                         if (--argc < 1) goto bad;
1215                         srp_verifier_file = *(++argv);
1216                         meth=TLSv1_server_method();
1217                         }
1218                 else if (strcmp(*argv, "-srpuserseed") == 0)
1219                         {
1220                         if (--argc < 1) goto bad;
1221                         srpuserseed = *(++argv);
1222                         meth=TLSv1_server_method();
1223                         }
1224 #endif
1225                 else if (strcmp(*argv,"-www") == 0)
1226                         { www=1; }
1227                 else if (strcmp(*argv,"-WWW") == 0)
1228                         { www=2; }
1229                 else if (strcmp(*argv,"-HTTP") == 0)
1230                         { www=3; }
1231                 else if (strcmp(*argv,"-no_ssl2") == 0)
1232                         { off|=SSL_OP_NO_SSLv2; }
1233                 else if (strcmp(*argv,"-no_ssl3") == 0)
1234                         { off|=SSL_OP_NO_SSLv3; }
1235                 else if (strcmp(*argv,"-no_tls1") == 0)
1236                         { off|=SSL_OP_NO_TLSv1; }
1237                 else if (strcmp(*argv,"-no_tls1_1") == 0)
1238                         { off|=SSL_OP_NO_TLSv1_1; }
1239                 else if (strcmp(*argv,"-no_tls1_2") == 0)
1240                         { off|=SSL_OP_NO_TLSv1_2; }
1241                 else if (strcmp(*argv,"-no_comp") == 0)
1242                         { off|=SSL_OP_NO_COMPRESSION; }
1243 #ifndef OPENSSL_NO_TLSEXT
1244                 else if (strcmp(*argv,"-no_ticket") == 0)
1245                         { off|=SSL_OP_NO_TICKET; }
1246 #endif
1247 #ifndef OPENSSL_NO_SSL2
1248                 else if (strcmp(*argv,"-ssl2") == 0)
1249                         { meth=SSLv2_server_method(); }
1250 #endif
1251 #ifndef OPENSSL_NO_SSL3
1252                 else if (strcmp(*argv,"-ssl3") == 0)
1253                         { meth=SSLv3_server_method(); }
1254 #endif
1255 #ifndef OPENSSL_NO_TLS1
1256                 else if (strcmp(*argv,"-tls1") == 0)
1257                         { meth=TLSv1_server_method(); }
1258                 else if (strcmp(*argv,"-tls1_1") == 0)
1259                         { meth=TLSv1_1_server_method(); }
1260                 else if (strcmp(*argv,"-tls1_2") == 0)
1261                         { meth=TLSv1_2_server_method(); }
1262 #endif
1263 #ifndef OPENSSL_NO_DTLS1
1264                 else if (strcmp(*argv,"-dtls1") == 0)
1265                         {
1266                         meth=DTLSv1_server_method();
1267                         socket_type = SOCK_DGRAM;
1268                         }
1269                 else if (strcmp(*argv,"-timeout") == 0)
1270                         enable_timeouts = 1;
1271                 else if (strcmp(*argv,"-mtu") == 0)
1272                         {
1273                         if (--argc < 1) goto bad;
1274                         socket_mtu = atol(*(++argv));
1275                         }
1276                 else if (strcmp(*argv, "-chain") == 0)
1277                         cert_chain = 1;
1278 #endif
1279                 else if (strcmp(*argv, "-id_prefix") == 0)
1280                         {
1281                         if (--argc < 1) goto bad;
1282                         session_id_prefix = *(++argv);
1283                         }
1284 #ifndef OPENSSL_NO_ENGINE
1285                 else if (strcmp(*argv,"-engine") == 0)
1286                         {
1287                         if (--argc < 1) goto bad;
1288                         engine_id= *(++argv);
1289                         }
1290 #endif
1291                 else if (strcmp(*argv,"-rand") == 0)
1292                         {
1293                         if (--argc < 1) goto bad;
1294                         inrand= *(++argv);
1295                         }
1296 #ifndef OPENSSL_NO_TLSEXT
1297                 else if (strcmp(*argv,"-servername") == 0)
1298                         {
1299                         if (--argc < 1) goto bad;
1300                         tlsextcbp.servername= *(++argv);
1301                         }
1302                 else if (strcmp(*argv,"-servername_fatal") == 0)
1303                         { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
1304                 else if (strcmp(*argv,"-cert2") == 0)
1305                         {
1306                         if (--argc < 1) goto bad;
1307                         s_cert_file2= *(++argv);
1308                         }
1309                 else if (strcmp(*argv,"-key2") == 0)
1310                         {
1311                         if (--argc < 1) goto bad;
1312                         s_key_file2= *(++argv);
1313                         }
1314 # ifndef OPENSSL_NO_NEXTPROTONEG
1315                 else if (strcmp(*argv,"-nextprotoneg") == 0)
1316                         {
1317                         if (--argc < 1) goto bad;
1318                         next_proto_neg_in = *(++argv);
1319                         }
1320 # endif
1321 #endif
1322 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1323                 else if (strcmp(*argv,"-jpake") == 0)
1324                         {
1325                         if (--argc < 1) goto bad;
1326                         jpake_secret = *(++argv);
1327                         }
1328 #endif
1329                 else if (strcmp(*argv,"-use_srtp") == 0)
1330                         {
1331                         if (--argc < 1) goto bad;
1332                         srtp_profiles = *(++argv);
1333                         }
1334                 else if (strcmp(*argv,"-keymatexport") == 0)
1335                         {
1336                         if (--argc < 1) goto bad;
1337                         keymatexportlabel= *(++argv);
1338                         }
1339                 else if (strcmp(*argv,"-keymatexportlen") == 0)
1340                         {
1341                         if (--argc < 1) goto bad;
1342                         keymatexportlen=atoi(*(++argv));
1343                         if (keymatexportlen == 0) goto bad;
1344                         }
1345                 else
1346                         {
1347                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1348                         badop=1;
1349                         break;
1350                         }
1351                 argc--;
1352                 argv++;
1353                 }
1354         if (badop)
1355                 {
1356 bad:
1357                 sv_usage();
1358                 goto end;
1359                 }
1360
1361 #if !defined(OPENSSL_NO_JPAKE) && !defined(OPENSSL_NO_PSK)
1362         if (jpake_secret)
1363                 {
1364                 if (psk_key)
1365                         {
1366                         BIO_printf(bio_err,
1367                                    "Can't use JPAKE and PSK together\n");
1368                         goto end;
1369                         }
1370                 psk_identity = "JPAKE";
1371                 if (cipher)
1372                         {
1373                         BIO_printf(bio_err, "JPAKE sets cipher to PSK\n");
1374                         goto end;
1375                         }
1376                 cipher = "PSK";
1377                 }
1378
1379 #endif
1380
1381         SSL_load_error_strings();
1382         OpenSSL_add_ssl_algorithms();
1383
1384 #ifndef OPENSSL_NO_ENGINE
1385         e = setup_engine(bio_err, engine_id, 1);
1386 #endif
1387
1388         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
1389                 {
1390                 BIO_printf(bio_err, "Error getting password\n");
1391                 goto end;
1392                 }
1393
1394
1395         if (s_key_file == NULL)
1396                 s_key_file = s_cert_file;
1397 #ifndef OPENSSL_NO_TLSEXT
1398         if (s_key_file2 == NULL)
1399                 s_key_file2 = s_cert_file2;
1400 #endif
1401
1402         if (nocert == 0)
1403                 {
1404                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1405                        "server certificate private key file");
1406                 if (!s_key)
1407                         {
1408                         ERR_print_errors(bio_err);
1409                         goto end;
1410                         }
1411
1412                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
1413                         NULL, e, "server certificate file");
1414
1415                 if (!s_cert)
1416                         {
1417                         ERR_print_errors(bio_err);
1418                         goto end;
1419                         }
1420
1421 #ifndef OPENSSL_NO_TLSEXT
1422                 if (tlsextcbp.servername)
1423                         {
1424                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1425                                 "second server certificate private key file");
1426                         if (!s_key2)
1427                                 {
1428                                 ERR_print_errors(bio_err);
1429                                 goto end;
1430                                 }
1431
1432                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
1433                                 NULL, e, "second server certificate file");
1434
1435                         if (!s_cert2)
1436                                 {
1437                                 ERR_print_errors(bio_err);
1438                                 goto end;
1439                                 }
1440                         }
1441
1442 # ifndef OPENSSL_NO_NEXTPROTONEG
1443                 if (next_proto_neg_in)
1444                         {
1445                         unsigned short len;
1446                         next_proto.data = next_protos_parse(&len,
1447                                 next_proto_neg_in);
1448                         if (next_proto.data == NULL)
1449                                 goto end;
1450                         next_proto.len = len;
1451                         }
1452                 else
1453                         {
1454                         next_proto.data = NULL;
1455                         }
1456 # endif
1457 #endif
1458                 }
1459
1460
1461         if (s_dcert_file)
1462                 {
1463
1464                 if (s_dkey_file == NULL)
1465                         s_dkey_file = s_dcert_file;
1466
1467                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1468                                 0, dpass, e,
1469                                "second certificate private key file");
1470                 if (!s_dkey)
1471                         {
1472                         ERR_print_errors(bio_err);
1473                         goto end;
1474                         }
1475
1476                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
1477                                 NULL, e, "second server certificate file");
1478
1479                 if (!s_dcert)
1480                         {
1481                         ERR_print_errors(bio_err);
1482                         goto end;
1483                         }
1484
1485                 }
1486
1487         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1488                 && !RAND_status())
1489                 {
1490                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1491                 }
1492         if (inrand != NULL)
1493                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1494                         app_RAND_load_files(inrand));
1495
1496         if (bio_s_out == NULL)
1497                 {
1498                 if (s_quiet && !s_debug && !s_msg)
1499                         {
1500                         bio_s_out=BIO_new(BIO_s_null());
1501                         }
1502                 else
1503                         {
1504                         if (bio_s_out == NULL)
1505                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1506                         }
1507                 }
1508
1509 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1510         if (nocert)
1511 #endif
1512                 {
1513                 s_cert_file=NULL;
1514                 s_key_file=NULL;
1515                 s_dcert_file=NULL;
1516                 s_dkey_file=NULL;
1517 #ifndef OPENSSL_NO_TLSEXT
1518                 s_cert_file2=NULL;
1519                 s_key_file2=NULL;
1520 #endif
1521                 }
1522
1523         ctx=SSL_CTX_new(meth);
1524         if (ctx == NULL)
1525                 {
1526                 ERR_print_errors(bio_err);
1527                 goto end;
1528                 }
1529         if (session_id_prefix)
1530                 {
1531                 if(strlen(session_id_prefix) >= 32)
1532                         BIO_printf(bio_err,
1533 "warning: id_prefix is too long, only one new session will be possible\n");
1534                 else if(strlen(session_id_prefix) >= 16)
1535                         BIO_printf(bio_err,
1536 "warning: id_prefix is too long if you use SSLv2\n");
1537                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1538                         {
1539                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1540                         ERR_print_errors(bio_err);
1541                         goto end;
1542                         }
1543                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1544                 }
1545         SSL_CTX_set_quiet_shutdown(ctx,1);
1546         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
1547         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1548         SSL_CTX_set_options(ctx,off);
1549         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1550          * Setting read ahead solves this problem.
1551          */
1552         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1553
1554         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1555         if (no_cache)
1556                 SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
1557         else
1558                 SSL_CTX_sess_set_cache_size(ctx,128);
1559
1560         if (srtp_profiles != NULL)
1561                 SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
1562
1563 #if 0
1564         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1565 #endif
1566
1567 #if 0
1568         if (s_cert_file == NULL)
1569                 {
1570                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1571                 goto end;
1572                 }
1573 #endif
1574
1575         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1576                 (!SSL_CTX_set_default_verify_paths(ctx)))
1577                 {
1578                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1579                 ERR_print_errors(bio_err);
1580                 /* goto end; */
1581                 }
1582         if (vpm)
1583                 SSL_CTX_set1_param(ctx, vpm);
1584
1585 #ifndef OPENSSL_NO_TLSEXT
1586         if (s_cert2)
1587                 {
1588                 ctx2=SSL_CTX_new(meth);
1589                 if (ctx2 == NULL)
1590                         {
1591                         ERR_print_errors(bio_err);
1592                         goto end;
1593                         }
1594                 }
1595
1596         if (ctx2)
1597                 {
1598                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1599
1600                 if (session_id_prefix)
1601                         {
1602                         if(strlen(session_id_prefix) >= 32)
1603                                 BIO_printf(bio_err,
1604                                         "warning: id_prefix is too long, only one new session will be possible\n");
1605                         else if(strlen(session_id_prefix) >= 16)
1606                                 BIO_printf(bio_err,
1607                                         "warning: id_prefix is too long if you use SSLv2\n");
1608                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1609                                 {
1610                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1611                                 ERR_print_errors(bio_err);
1612                                 goto end;
1613                                 }
1614                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1615                         }
1616                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1617                 if (bugs) SSL_CTX_set_options(ctx2,SSL_OP_ALL);
1618                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1619                 SSL_CTX_set_options(ctx2,off);
1620                 /* DTLS: partial reads end up discarding unread UDP bytes :-(
1621                  * Setting read ahead solves this problem.
1622                  */
1623                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1624
1625                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1626
1627                 if (no_cache)
1628                         SSL_CTX_set_session_cache_mode(ctx2,SSL_SESS_CACHE_OFF);
1629                 else
1630                         SSL_CTX_sess_set_cache_size(ctx2,128);
1631
1632                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1633                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1634                         {
1635                         ERR_print_errors(bio_err);
1636                         }
1637                 if (vpm)
1638                         SSL_CTX_set1_param(ctx2, vpm);
1639                 }
1640
1641 # ifndef OPENSSL_NO_NEXTPROTONEG
1642         if (next_proto.data)
1643                 SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto);
1644 # endif
1645 #endif
1646
1647 #ifndef OPENSSL_NO_DH
1648         if (!no_dhe)
1649                 {
1650                 DH *dh=NULL;
1651
1652                 if (dhfile)
1653                         dh = load_dh_param(dhfile);
1654                 else if (s_cert_file)
1655                         dh = load_dh_param(s_cert_file);
1656
1657                 if (dh != NULL)
1658                         {
1659                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1660                         }
1661                 else
1662                         {
1663                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1664                         dh=get_dh512();
1665                         }
1666                 (void)BIO_flush(bio_s_out);
1667
1668                 SSL_CTX_set_tmp_dh(ctx,dh);
1669 #ifndef OPENSSL_NO_TLSEXT
1670                 if (ctx2)
1671                         {
1672                         if (!dhfile)
1673                                 {
1674                                 DH *dh2=load_dh_param(s_cert_file2);
1675                                 if (dh2 != NULL)
1676                                         {
1677                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1678                                         (void)BIO_flush(bio_s_out);
1679
1680                                         DH_free(dh);
1681                                         dh = dh2;
1682                                         }
1683                                 }
1684                         SSL_CTX_set_tmp_dh(ctx2,dh);
1685                         }
1686 #endif
1687                 DH_free(dh);
1688                 }
1689 #endif
1690
1691 #ifndef OPENSSL_NO_ECDH
1692         if (!no_ecdhe)
1693                 {
1694                 EC_KEY *ecdh=NULL;
1695
1696                 if (named_curve && strcmp(named_curve, "auto"))
1697                         {
1698                         int nid = EC_curve_nist2nid(named_curve);
1699                         if (nid == NID_undef)
1700                                 nid = OBJ_sn2nid(named_curve);
1701                         if (nid == 0)
1702                                 {
1703                                 BIO_printf(bio_err, "unknown curve name (%s)\n",
1704                                         named_curve);
1705                                 goto end;
1706                                 }
1707                         ecdh = EC_KEY_new_by_curve_name(nid);
1708                         if (ecdh == NULL)
1709                                 {
1710                                 BIO_printf(bio_err, "unable to create curve (%s)\n",
1711                                         named_curve);
1712                                 goto end;
1713                                 }
1714                         }
1715
1716                 if (ecdh != NULL)
1717                         {
1718                         BIO_printf(bio_s_out,"Setting temp ECDH parameters\n");
1719                         }
1720                 else if (named_curve)
1721                         SSL_CTX_set_ecdh_auto(ctx, 1);
1722                 else
1723                         {
1724                         BIO_printf(bio_s_out,"Using default temp ECDH parameters\n");
1725                         ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
1726                         if (ecdh == NULL)
1727                                 {
1728                                 BIO_printf(bio_err, "unable to create curve (nistp256)\n");
1729                                 goto end;
1730                                 }
1731                         }
1732                 (void)BIO_flush(bio_s_out);
1733
1734                 SSL_CTX_set_tmp_ecdh(ctx,ecdh);
1735 #ifndef OPENSSL_NO_TLSEXT
1736                 if (ctx2)
1737                         SSL_CTX_set_tmp_ecdh(ctx2,ecdh);
1738 #endif
1739                 EC_KEY_free(ecdh);
1740                 }
1741 #endif
1742
1743         if (!set_cert_key_stuff(ctx,s_cert,s_key))
1744                 goto end;
1745 #ifndef OPENSSL_NO_TLSEXT
1746         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2))
1747                 goto end;
1748 #endif
1749         if (s_dcert != NULL)
1750                 {
1751                 if (!set_cert_key_stuff(ctx,s_dcert,s_dkey))
1752                         goto end;
1753                 }
1754
1755 #ifndef OPENSSL_NO_RSA
1756 #if 1
1757         if (!no_tmp_rsa)
1758                 {
1759                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1760 #ifndef OPENSSL_NO_TLSEXT
1761                 if (ctx2)
1762                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1763 #endif
1764                 }
1765 #else
1766         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1767                 {
1768                 RSA *rsa;
1769
1770                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1771                 BIO_flush(bio_s_out);
1772
1773                 rsa=RSA_generate_key(512,RSA_F4,NULL);
1774
1775                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1776                         {
1777                         ERR_print_errors(bio_err);
1778                         goto end;
1779                         }
1780 #ifndef OPENSSL_NO_TLSEXT
1781                         if (ctx2)
1782                                 {
1783                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
1784                                         {
1785                                         ERR_print_errors(bio_err);
1786                                         goto end;
1787                                         }
1788                                 }
1789 #endif
1790                 RSA_free(rsa);
1791                 BIO_printf(bio_s_out,"\n");
1792                 }
1793 #endif
1794 #endif
1795
1796 #ifndef OPENSSL_NO_PSK
1797 #ifdef OPENSSL_NO_JPAKE
1798         if (psk_key != NULL)
1799 #else
1800         if (psk_key != NULL || jpake_secret)
1801 #endif
1802                 {
1803                 if (s_debug)
1804                         BIO_printf(bio_s_out, "PSK key given or JPAKE in use, setting server callback\n");
1805                 SSL_CTX_set_psk_server_callback(ctx, psk_server_cb);
1806                 }
1807
1808         if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint))
1809                 {
1810                 BIO_printf(bio_err,"error setting PSK identity hint to context\n");
1811                 ERR_print_errors(bio_err);
1812                 goto end;
1813                 }
1814 #endif
1815
1816         if (cipher != NULL)
1817                 {
1818                 if(!SSL_CTX_set_cipher_list(ctx,cipher))
1819                         {
1820                         BIO_printf(bio_err,"error setting cipher list\n");
1821                         ERR_print_errors(bio_err);
1822                         goto end;
1823                         }
1824 #ifndef OPENSSL_NO_TLSEXT
1825                 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2,cipher))
1826                         {
1827                         BIO_printf(bio_err,"error setting cipher list\n");
1828                         ERR_print_errors(bio_err);
1829                         goto end;
1830                         }
1831 #endif
1832                 }
1833 #ifndef OPENSSL_NO_TLSEXT
1834         if (curves)
1835                 {
1836                 if(!SSL_CTX_set1_curves_list(ctx,curves))
1837                         {
1838                         BIO_printf(bio_err,"error setting curves list\n");
1839                         ERR_print_errors(bio_err);
1840                         goto end;
1841                         }
1842                 if(ctx2 && !SSL_CTX_set1_curves_list(ctx2,curves))
1843                         {
1844                         BIO_printf(bio_err,"error setting curves list\n");
1845                         ERR_print_errors(bio_err);
1846                         goto end;
1847                         }
1848                 }
1849 #endif
1850         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
1851         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
1852                 sizeof s_server_session_id_context);
1853
1854         /* Set DTLS cookie generation and verification callbacks */
1855         SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback);
1856         SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback);
1857
1858 #ifndef OPENSSL_NO_TLSEXT
1859         if (ctx2)
1860                 {
1861                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
1862                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
1863                         sizeof s_server_session_id_context);
1864
1865                 tlsextcbp.biodebug = bio_s_out;
1866                 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
1867                 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
1868                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1869                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1870                 }
1871 #endif
1872
1873 #ifndef OPENSSL_NO_SRP
1874         if (srp_verifier_file != NULL)
1875                 {
1876                 srp_callback_parm.vb = SRP_VBASE_new(srpuserseed);
1877                 srp_callback_parm.user = NULL;
1878                 srp_callback_parm.login = NULL;
1879                 if ((ret = SRP_VBASE_init(srp_callback_parm.vb, srp_verifier_file)) != SRP_NO_ERROR)
1880                         {
1881                         BIO_printf(bio_err,
1882                                    "Cannot initialize SRP verifier file \"%s\":ret=%d\n",
1883                                    srp_verifier_file, ret);
1884                                 goto end;
1885                         }
1886                 SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE,verify_callback);
1887                 SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm);
1888                 SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb);
1889                 }
1890         else
1891 #endif
1892         if (CAfile != NULL)
1893                 {
1894                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
1895 #ifndef OPENSSL_NO_TLSEXT
1896                 if (ctx2)
1897                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
1898 #endif
1899                 }
1900
1901         BIO_printf(bio_s_out,"ACCEPT\n");
1902         (void)BIO_flush(bio_s_out);
1903         if (www)
1904                 do_server(port,socket_type,&accept_socket,www_body, context);
1905         else
1906                 do_server(port,socket_type,&accept_socket,sv_body, context);
1907         print_stats(bio_s_out,ctx);
1908         ret=0;
1909 end:
1910         if (ctx != NULL) SSL_CTX_free(ctx);
1911         if (s_cert)
1912                 X509_free(s_cert);
1913         if (s_dcert)
1914                 X509_free(s_dcert);
1915         if (s_key)
1916                 EVP_PKEY_free(s_key);
1917         if (s_dkey)
1918                 EVP_PKEY_free(s_dkey);
1919         if (pass)
1920                 OPENSSL_free(pass);
1921         if (dpass)
1922                 OPENSSL_free(dpass);
1923 #ifndef OPENSSL_NO_TLSEXT
1924         if (ctx2 != NULL) SSL_CTX_free(ctx2);
1925         if (s_cert2)
1926                 X509_free(s_cert2);
1927         if (s_key2)
1928                 EVP_PKEY_free(s_key2);
1929 #endif
1930         if (bio_s_out != NULL)
1931                 {
1932         BIO_free(bio_s_out);
1933                 bio_s_out=NULL;
1934                 }
1935         apps_shutdown();
1936         OPENSSL_EXIT(ret);
1937         }
1938
1939 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
1940         {
1941         BIO_printf(bio,"%4ld items in the session cache\n",
1942                 SSL_CTX_sess_number(ssl_ctx));
1943         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
1944                 SSL_CTX_sess_connect(ssl_ctx));
1945         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
1946                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
1947         BIO_printf(bio,"%4ld client connects that finished\n",
1948                 SSL_CTX_sess_connect_good(ssl_ctx));
1949         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
1950                 SSL_CTX_sess_accept(ssl_ctx));
1951         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
1952                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
1953         BIO_printf(bio,"%4ld server accepts that finished\n",
1954                 SSL_CTX_sess_accept_good(ssl_ctx));
1955         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
1956         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
1957         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
1958         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
1959         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
1960                 SSL_CTX_sess_cache_full(ssl_ctx),
1961                 SSL_CTX_sess_get_cache_size(ssl_ctx));
1962         }
1963
1964 static int sv_body(char *hostname, int s, unsigned char *context)
1965         {
1966         char *buf=NULL;
1967         fd_set readfds;
1968         int ret=1,width;
1969         int k,i;
1970         unsigned long l;
1971         SSL *con=NULL;
1972         BIO *sbio;
1973 #ifndef OPENSSL_NO_KRB5
1974         KSSL_CTX *kctx;
1975 #endif
1976         struct timeval timeout;
1977 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE) || defined(OPENSSL_SYS_BEOS_R5)
1978         struct timeval tv;
1979 #else
1980         struct timeval *timeoutp;
1981 #endif
1982
1983         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
1984                 {
1985                 BIO_printf(bio_err,"out of memory\n");
1986                 goto err;
1987                 }
1988 #ifdef FIONBIO
1989         if (s_nbio)
1990                 {
1991                 unsigned long sl=1;
1992
1993                 if (!s_quiet)
1994                         BIO_printf(bio_err,"turning on non blocking io\n");
1995                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1996                         ERR_print_errors(bio_err);
1997                 }
1998 #endif
1999
2000         if (con == NULL) {
2001                 con=SSL_new(ctx);
2002 #ifndef OPENSSL_NO_TLSEXT
2003         if (s_tlsextdebug)
2004                 {
2005                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2006                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2007                 }
2008         if (s_tlsextstatus)
2009                 {
2010                 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
2011                 tlscstatp.err = bio_err;
2012                 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
2013                 }
2014 #endif
2015 #ifndef OPENSSL_NO_KRB5
2016                 if ((kctx = kssl_ctx_new()) != NULL)
2017                         {
2018                         SSL_set0_kssl_ctx(con, kctx);
2019                         kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2020                         kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2021                         }
2022 #endif  /* OPENSSL_NO_KRB5 */
2023                 if(context)
2024                       SSL_set_session_id_context(con, context,
2025                                                  strlen((char *)context));
2026         }
2027         SSL_clear(con);
2028 #if 0
2029 #ifdef TLSEXT_TYPE_opaque_prf_input
2030         SSL_set_tlsext_opaque_prf_input(con, "Test server", 11);
2031 #endif
2032 #endif
2033
2034         if (SSL_version(con) == DTLS1_VERSION)
2035                 {
2036
2037                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
2038
2039                 if (enable_timeouts)
2040                         {
2041                         timeout.tv_sec = 0;
2042                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
2043                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
2044
2045                         timeout.tv_sec = 0;
2046                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
2047                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
2048                         }
2049
2050                 if (socket_mtu > 28)
2051                         {
2052                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
2053                         SSL_set_mtu(con, socket_mtu - 28);
2054                         }
2055                 else
2056                         /* want to do MTU discovery */
2057                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
2058
2059         /* turn on cookie exchange */
2060         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
2061                 }
2062         else
2063                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
2064
2065         if (s_nbio_test)
2066                 {
2067                 BIO *test;
2068
2069                 test=BIO_new(BIO_f_nbio_test());
2070                 sbio=BIO_push(test,sbio);
2071                 }
2072 #ifndef OPENSSL_NO_JPAKE
2073         if(jpake_secret)
2074                 jpake_server_auth(bio_s_out, sbio, jpake_secret);
2075 #endif
2076
2077         SSL_set_bio(con,sbio,sbio);
2078         SSL_set_accept_state(con);
2079         /* SSL_set_fd(con,s); */
2080
2081         if (s_debug)
2082                 {
2083                 SSL_set_debug(con, 1);
2084                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2085                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2086                 }
2087         if (s_msg)
2088                 {
2089                 SSL_set_msg_callback(con, msg_cb);
2090                 SSL_set_msg_callback_arg(con, bio_s_out);
2091                 }
2092 #ifndef OPENSSL_NO_TLSEXT
2093         if (s_tlsextdebug)
2094                 {
2095                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
2096                 SSL_set_tlsext_debug_arg(con, bio_s_out);
2097                 }
2098 #endif
2099
2100         width=s+1;
2101         for (;;)
2102                 {
2103                 int read_from_terminal;
2104                 int read_from_sslcon;
2105
2106                 read_from_terminal = 0;
2107                 read_from_sslcon = SSL_pending(con);
2108
2109                 if (!read_from_sslcon)
2110                         {
2111                         FD_ZERO(&readfds);
2112 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE) && !defined(OPENSSL_SYS_BEOS_R5)
2113                         openssl_fdset(fileno(stdin),&readfds);
2114 #endif
2115                         openssl_fdset(s,&readfds);
2116                         /* Note: under VMS with SOCKETSHR the second parameter is
2117                          * currently of type (int *) whereas under other systems
2118                          * it is (void *) if you don't have a cast it will choke
2119                          * the compiler: if you do have a cast then you can either
2120                          * go for (int *) or (void *).
2121                          */
2122 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
2123                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
2124                          * on sockets. As a workaround we timeout the select every
2125                          * second and check for any keypress. In a proper Windows
2126                          * application we wouldn't do this because it is inefficient.
2127                          */
2128                         tv.tv_sec = 1;
2129                         tv.tv_usec = 0;
2130                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2131                         if((i < 0) || (!i && !_kbhit() ) )continue;
2132                         if(_kbhit())
2133                                 read_from_terminal = 1;
2134 #elif defined(OPENSSL_SYS_BEOS_R5)
2135                         /* Under BeOS-R5 the situation is similar to DOS */
2136                         tv.tv_sec = 1;
2137                         tv.tv_usec = 0;
2138                         (void)fcntl(fileno(stdin), F_SETFL, O_NONBLOCK);
2139                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
2140                         if ((i < 0) || (!i && read(fileno(stdin), buf, 0) < 0))
2141                                 continue;
2142                         if (read(fileno(stdin), buf, 0) >= 0)
2143                                 read_from_terminal = 1;
2144                         (void)fcntl(fileno(stdin), F_SETFL, 0);
2145 #else
2146                         if ((SSL_version(con) == DTLS1_VERSION) &&
2147                                 DTLSv1_get_timeout(con, &timeout))
2148                                 timeoutp = &timeout;
2149                         else
2150                                 timeoutp = NULL;
2151
2152                         i=select(width,(void *)&readfds,NULL,NULL,timeoutp);
2153
2154                         if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0)
2155                                 {
2156                                 BIO_printf(bio_err,"TIMEOUT occured\n");
2157                                 }
2158
2159                         if (i <= 0) continue;
2160                         if (FD_ISSET(fileno(stdin),&readfds))
2161                                 read_from_terminal = 1;
2162 #endif
2163                         if (FD_ISSET(s,&readfds))
2164                                 read_from_sslcon = 1;
2165                         }
2166                 if (read_from_terminal)
2167                         {
2168                         if (s_crlf)
2169                                 {
2170                                 int j, lf_num;
2171
2172                                 i=raw_read_stdin(buf, bufsize/2);
2173                                 lf_num = 0;
2174                                 /* both loops are skipped when i <= 0 */
2175                                 for (j = 0; j < i; j++)
2176                                         if (buf[j] == '\n')
2177                                                 lf_num++;
2178                                 for (j = i-1; j >= 0; j--)
2179                                         {
2180                                         buf[j+lf_num] = buf[j];
2181                                         if (buf[j] == '\n')
2182                                                 {
2183                                                 lf_num--;
2184                                                 i++;
2185                                                 buf[j+lf_num] = '\r';
2186                                                 }
2187                                         }
2188                                 assert(lf_num == 0);
2189                                 }
2190                         else
2191                                 i=raw_read_stdin(buf,bufsize);
2192                         if (!s_quiet)
2193                                 {
2194                                 if ((i <= 0) || (buf[0] == 'Q'))
2195                                         {
2196                                         BIO_printf(bio_s_out,"DONE\n");
2197                                         SHUTDOWN(s);
2198                                         close_accept_socket();
2199                                         ret= -11;
2200                                         goto err;
2201                                         }
2202                                 if ((i <= 0) || (buf[0] == 'q'))
2203                                         {
2204                                         BIO_printf(bio_s_out,"DONE\n");
2205                                         if (SSL_version(con) != DTLS1_VERSION)
2206                         SHUTDOWN(s);
2207         /*                              close_accept_socket();
2208                                         ret= -11;*/
2209                                         goto err;
2210                                         }
2211
2212 #ifndef OPENSSL_NO_HEARTBEATS
2213                                 if ((buf[0] == 'B') &&
2214                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2215                                         {
2216                                         BIO_printf(bio_err,"HEARTBEATING\n");
2217                                         SSL_heartbeat(con);
2218                                         i=0;
2219                                         continue;
2220                                         }
2221 #endif
2222                                 if ((buf[0] == 'r') &&
2223                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2224                                         {
2225                                         SSL_renegotiate(con);
2226                                         i=SSL_do_handshake(con);
2227                                         printf("SSL_do_handshake -> %d\n",i);
2228                                         i=0; /*13; */
2229                                         continue;
2230                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
2231                                         }
2232                                 if ((buf[0] == 'R') &&
2233                                         ((buf[1] == '\n') || (buf[1] == '\r')))
2234                                         {
2235                                         SSL_set_verify(con,
2236                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
2237                                         SSL_renegotiate(con);
2238                                         i=SSL_do_handshake(con);
2239                                         printf("SSL_do_handshake -> %d\n",i);
2240                                         i=0; /* 13; */
2241                                         continue;
2242                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
2243                                         }
2244                                 if (buf[0] == 'P')
2245                                         {
2246                                         static const char *str="Lets print some clear text\n";
2247                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
2248                                         }
2249                                 if (buf[0] == 'S')
2250                                         {
2251                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
2252                                         }
2253                                 }
2254 #ifdef CHARSET_EBCDIC
2255                         ebcdic2ascii(buf,buf,i);
2256 #endif
2257                         l=k=0;
2258                         for (;;)
2259                                 {
2260                                 /* should do a select for the write */
2261 #ifdef RENEG
2262 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
2263 #endif
2264                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2265 #ifndef OPENSSL_NO_SRP
2266                                 while (SSL_get_error(con,k) == SSL_ERROR_WANT_X509_LOOKUP)
2267                                         {
2268                                         BIO_printf(bio_s_out,"LOOKUP renego during write\n");
2269                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2270                                         if (srp_callback_parm.user)
2271                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2272                                         else
2273                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2274                                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
2275                                         }
2276 #endif
2277                                 switch (SSL_get_error(con,k))
2278                                         {
2279                                 case SSL_ERROR_NONE:
2280                                         break;
2281                                 case SSL_ERROR_WANT_WRITE:
2282                                 case SSL_ERROR_WANT_READ:
2283                                 case SSL_ERROR_WANT_X509_LOOKUP:
2284                                         BIO_printf(bio_s_out,"Write BLOCK\n");
2285                                         break;
2286                                 case SSL_ERROR_SYSCALL:
2287                                 case SSL_ERROR_SSL:
2288                                         BIO_printf(bio_s_out,"ERROR\n");
2289                                         ERR_print_errors(bio_err);
2290                                         ret=1;
2291                                         goto err;
2292                                         /* break; */
2293                                 case SSL_ERROR_ZERO_RETURN:
2294                                         BIO_printf(bio_s_out,"DONE\n");
2295                                         ret=1;
2296                                         goto err;
2297                                         }
2298                                 l+=k;
2299                                 i-=k;
2300                                 if (i <= 0) break;
2301                                 }
2302                         }
2303                 if (read_from_sslcon)
2304                         {
2305                         if (!SSL_is_init_finished(con))
2306                                 {
2307                                 i=init_ssl_connection(con);
2308
2309                                 if (i < 0)
2310                                         {
2311                                         ret=0;
2312                                         goto err;
2313                                         }
2314                                 else if (i == 0)
2315                                         {
2316                                         ret=1;
2317                                         goto err;
2318                                         }
2319                                 }
2320                         else
2321                                 {
2322 again:
2323                                 i=SSL_read(con,(char *)buf,bufsize);
2324 #ifndef OPENSSL_NO_SRP
2325                                 while (SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2326                                         {
2327                                         BIO_printf(bio_s_out,"LOOKUP renego during read\n");
2328                                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2329                                         if (srp_callback_parm.user)
2330                                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2331                                         else
2332                                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2333                                         i=SSL_read(con,(char *)buf,bufsize);
2334                                         }
2335 #endif
2336                                 switch (SSL_get_error(con,i))
2337                                         {
2338                                 case SSL_ERROR_NONE:
2339 #ifdef CHARSET_EBCDIC
2340                                         ascii2ebcdic(buf,buf,i);
2341 #endif
2342                                         raw_write_stdout(buf,
2343                                                 (unsigned int)i);
2344                                         if (SSL_pending(con)) goto again;
2345                                         break;
2346                                 case SSL_ERROR_WANT_WRITE:
2347                                 case SSL_ERROR_WANT_READ:
2348                                         BIO_printf(bio_s_out,"Read BLOCK\n");
2349                                         break;
2350                                 case SSL_ERROR_SYSCALL:
2351                                 case SSL_ERROR_SSL:
2352                                         BIO_printf(bio_s_out,"ERROR\n");
2353                                         ERR_print_errors(bio_err);
2354                                         ret=1;
2355                                         goto err;
2356                                 case SSL_ERROR_ZERO_RETURN:
2357                                         BIO_printf(bio_s_out,"DONE\n");
2358                                         ret=1;
2359                                         goto err;
2360                                         }
2361                                 }
2362                         }
2363                 }
2364 err:
2365         if (con != NULL)
2366                 {
2367                 BIO_printf(bio_s_out,"shutting down SSL\n");
2368 #if 1
2369                 SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2370 #else
2371                 SSL_shutdown(con);
2372 #endif
2373                 SSL_free(con);
2374                 }
2375         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
2376         if (buf != NULL)
2377                 {
2378                 OPENSSL_cleanse(buf,bufsize);
2379                 OPENSSL_free(buf);
2380                 }
2381         if (ret >= 0)
2382                 BIO_printf(bio_s_out,"ACCEPT\n");
2383         return(ret);
2384         }
2385
2386 static void close_accept_socket(void)
2387         {
2388         BIO_printf(bio_err,"shutdown accept socket\n");
2389         if (accept_socket >= 0)
2390                 {
2391                 SHUTDOWN2(accept_socket);
2392                 }
2393         }
2394
2395 static int init_ssl_connection(SSL *con)
2396         {
2397         int i;
2398         const char *str;
2399         X509 *peer;
2400         long verify_error;
2401         MS_STATIC char buf[BUFSIZ];
2402 #ifndef OPENSSL_NO_KRB5
2403         char *client_princ;
2404 #endif
2405 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2406         const unsigned char *next_proto_neg;
2407         unsigned next_proto_neg_len;
2408 #endif
2409         unsigned char *exportedkeymat;
2410
2411
2412         i=SSL_accept(con);
2413 #ifndef OPENSSL_NO_SRP
2414         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2415                 {
2416                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2417                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2418                         if (srp_callback_parm.user)
2419                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2420                         else
2421                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2422                         i=SSL_accept(con);
2423                 }
2424 #endif
2425         if (i <= 0)
2426                 {
2427                 if (BIO_sock_should_retry(i))
2428                         {
2429                         BIO_printf(bio_s_out,"DELAY\n");
2430                         return(1);
2431                         }
2432
2433                 BIO_printf(bio_err,"ERROR\n");
2434                 verify_error=SSL_get_verify_result(con);
2435                 if (verify_error != X509_V_OK)
2436                         {
2437                         BIO_printf(bio_err,"verify error:%s\n",
2438                                 X509_verify_cert_error_string(verify_error));
2439                         }
2440                 else
2441                         ERR_print_errors(bio_err);
2442                 return(0);
2443                 }
2444
2445         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
2446
2447         peer=SSL_get_peer_certificate(con);
2448         if (peer != NULL)
2449                 {
2450                 BIO_printf(bio_s_out,"Client certificate\n");
2451                 PEM_write_bio_X509(bio_s_out,peer);
2452                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
2453                 BIO_printf(bio_s_out,"subject=%s\n",buf);
2454                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
2455                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
2456                 X509_free(peer);
2457                 }
2458
2459         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
2460                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
2461         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
2462         ssl_print_sigalgs(bio_s_out, con);
2463         ssl_print_curves(bio_s_out, con);
2464         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
2465
2466 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
2467         SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len);
2468         if (next_proto_neg)
2469                 {
2470                 BIO_printf(bio_s_out,"NEXTPROTO is ");
2471                 BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len);
2472                 BIO_printf(bio_s_out, "\n");
2473                 }
2474 #endif
2475         {
2476         SRTP_PROTECTION_PROFILE *srtp_profile
2477           = SSL_get_selected_srtp_profile(con);
2478
2479         if(srtp_profile)
2480                 BIO_printf(bio_s_out,"SRTP Extension negotiated, profile=%s\n",
2481                            srtp_profile->name);
2482         }
2483         if (SSL_cache_hit(con)) BIO_printf(bio_s_out,"Reused session-id\n");
2484         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
2485                 TLS1_FLAGS_TLS_PADDING_BUG)
2486                 BIO_printf(bio_s_out,
2487                            "Peer has incorrect TLSv1 block padding\n");
2488 #ifndef OPENSSL_NO_KRB5
2489         client_princ = kssl_ctx_get0_client_princ(SSL_get0_kssl_ctx(con));
2490         if (client_princ != NULL)
2491                 {
2492                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
2493                                                                 client_princ);
2494                 }
2495 #endif /* OPENSSL_NO_KRB5 */
2496         BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n",
2497                       SSL_get_secure_renegotiation_support(con) ? "" : " NOT");
2498         if (keymatexportlabel != NULL)
2499                 {
2500                 BIO_printf(bio_s_out, "Keying material exporter:\n");
2501                 BIO_printf(bio_s_out, "    Label: '%s'\n", keymatexportlabel);
2502                 BIO_printf(bio_s_out, "    Length: %i bytes\n",
2503                            keymatexportlen);
2504                 exportedkeymat = OPENSSL_malloc(keymatexportlen);
2505                 if (exportedkeymat != NULL)
2506                         {
2507                         if (!SSL_export_keying_material(con, exportedkeymat,
2508                                                         keymatexportlen,
2509                                                         keymatexportlabel,
2510                                                         strlen(keymatexportlabel),
2511                                                         NULL, 0, 0))
2512                                 {
2513                                 BIO_printf(bio_s_out, "    Error\n");
2514                                 }
2515                         else
2516                                 {
2517                                 BIO_printf(bio_s_out, "    Keying material: ");
2518                                 for (i=0; i<keymatexportlen; i++)
2519                                         BIO_printf(bio_s_out, "%02X",
2520                                                    exportedkeymat[i]);
2521                                 BIO_printf(bio_s_out, "\n");
2522                                 }
2523                         OPENSSL_free(exportedkeymat);
2524                         }
2525                 }
2526
2527         return(1);
2528         }
2529
2530 #ifndef OPENSSL_NO_DH
2531 static DH *load_dh_param(const char *dhfile)
2532         {
2533         DH *ret=NULL;
2534         BIO *bio;
2535
2536         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
2537                 goto err;
2538         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
2539 err:
2540         if (bio != NULL) BIO_free(bio);
2541         return(ret);
2542         }
2543 #endif
2544 #ifndef OPENSSL_NO_KRB5
2545         char *client_princ;
2546 #endif
2547
2548 #if 0
2549 static int load_CA(SSL_CTX *ctx, char *file)
2550         {
2551         FILE *in;
2552         X509 *x=NULL;
2553
2554         if ((in=fopen(file,"r")) == NULL)
2555                 return(0);
2556
2557         for (;;)
2558                 {
2559                 if (PEM_read_X509(in,&x,NULL) == NULL)
2560                         break;
2561                 SSL_CTX_add_client_CA(ctx,x);
2562                 }
2563         if (x != NULL) X509_free(x);
2564         fclose(in);
2565         return(1);
2566         }
2567 #endif
2568
2569 static int www_body(char *hostname, int s, unsigned char *context)
2570         {
2571         char *buf=NULL;
2572         int ret=1;
2573         int i,j,k,dot;
2574         SSL *con;
2575         const SSL_CIPHER *c;
2576         BIO *io,*ssl_bio,*sbio;
2577 #ifndef OPENSSL_NO_KRB5
2578         KSSL_CTX *kctx;
2579 #endif
2580
2581         buf=OPENSSL_malloc(bufsize);
2582         if (buf == NULL) return(0);
2583         io=BIO_new(BIO_f_buffer());
2584         ssl_bio=BIO_new(BIO_f_ssl());
2585         if ((io == NULL) || (ssl_bio == NULL)) goto err;
2586
2587 #ifdef FIONBIO
2588         if (s_nbio)
2589                 {
2590                 unsigned long sl=1;
2591
2592                 if (!s_quiet)
2593                         BIO_printf(bio_err,"turning on non blocking io\n");
2594                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2595                         ERR_print_errors(bio_err);
2596                 }
2597 #endif
2598
2599         /* lets make the output buffer a reasonable size */
2600         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
2601
2602         if ((con=SSL_new(ctx)) == NULL) goto err;
2603 #ifndef OPENSSL_NO_TLSEXT
2604                 if (s_tlsextdebug)
2605                         {
2606                         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2607                         SSL_set_tlsext_debug_arg(con, bio_s_out);
2608                         }
2609 #endif
2610 #ifndef OPENSSL_NO_KRB5
2611         if ((kctx = kssl_ctx_new()) != NULL)
2612                 {
2613                 kssl_ctx_setstring(kctx, KSSL_SERVICE, KRB5SVC);
2614                 kssl_ctx_setstring(kctx, KSSL_KEYTAB, KRB5KEYTAB);
2615                 }
2616 #endif  /* OPENSSL_NO_KRB5 */
2617         if(context) SSL_set_session_id_context(con, context,
2618                                                strlen((char *)context));
2619
2620         sbio=BIO_new_socket(s,BIO_NOCLOSE);
2621         if (s_nbio_test)
2622                 {
2623                 BIO *test;
2624
2625                 test=BIO_new(BIO_f_nbio_test());
2626                 sbio=BIO_push(test,sbio);
2627                 }
2628         SSL_set_bio(con,sbio,sbio);
2629         SSL_set_accept_state(con);
2630
2631         /* SSL_set_fd(con,s); */
2632         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
2633         BIO_push(io,ssl_bio);
2634 #ifdef CHARSET_EBCDIC
2635         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
2636 #endif
2637
2638         if (s_debug)
2639                 {
2640                 SSL_set_debug(con, 1);
2641                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2642                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2643                 }
2644         if (s_msg)
2645                 {
2646                 SSL_set_msg_callback(con, msg_cb);
2647                 SSL_set_msg_callback_arg(con, bio_s_out);
2648                 }
2649
2650         for (;;)
2651                 {
2652                 if (hack)
2653                         {
2654                         i=SSL_accept(con);
2655 #ifndef OPENSSL_NO_SRP
2656                         while (i <= 0 &&  SSL_get_error(con,i) == SSL_ERROR_WANT_X509_LOOKUP)
2657                 {
2658                         BIO_printf(bio_s_out,"LOOKUP during accept %s\n",srp_callback_parm.login);
2659                         srp_callback_parm.user = SRP_VBASE_get_by_user(srp_callback_parm.vb, srp_callback_parm.login);
2660                         if (srp_callback_parm.user)
2661                                 BIO_printf(bio_s_out,"LOOKUP done %s\n",srp_callback_parm.user->info);
2662                         else
2663                                 BIO_printf(bio_s_out,"LOOKUP not successful\n");
2664                         i=SSL_accept(con);
2665                 }
2666 #endif
2667                         switch (SSL_get_error(con,i))
2668                                 {
2669                         case SSL_ERROR_NONE:
2670                                 break;
2671                         case SSL_ERROR_WANT_WRITE:
2672                         case SSL_ERROR_WANT_READ:
2673                         case SSL_ERROR_WANT_X509_LOOKUP:
2674                                 continue;
2675                         case SSL_ERROR_SYSCALL:
2676                         case SSL_ERROR_SSL:
2677                         case SSL_ERROR_ZERO_RETURN:
2678                                 ret=1;
2679                                 goto err;
2680                                 /* break; */
2681                                 }
2682
2683                         SSL_renegotiate(con);
2684                         SSL_write(con,NULL,0);
2685                         }
2686
2687                 i=BIO_gets(io,buf,bufsize-1);
2688                 if (i < 0) /* error */
2689                         {
2690                         if (!BIO_should_retry(io))
2691                                 {
2692                                 if (!s_quiet)
2693                                         ERR_print_errors(bio_err);
2694                                 goto err;
2695                                 }
2696                         else
2697                                 {
2698                                 BIO_printf(bio_s_out,"read R BLOCK\n");
2699 #if defined(OPENSSL_SYS_NETWARE)
2700             delay(1000);
2701 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
2702                                 sleep(1);
2703 #endif
2704                                 continue;
2705                                 }
2706                         }
2707                 else if (i == 0) /* end of input */
2708                         {
2709                         ret=1;
2710                         goto end;
2711                         }
2712
2713                 /* else we have data */
2714                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
2715                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
2716                         {
2717                         char *p;
2718                         X509 *peer;
2719                         STACK_OF(SSL_CIPHER) *sk;
2720                         static const char *space="                          ";
2721
2722                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2723                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
2724                         BIO_puts(io,"<pre>\n");
2725 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
2726                         BIO_puts(io,"\n");
2727                         for (i=0; i<local_argc; i++)
2728                                 {
2729                                 BIO_puts(io,local_argv[i]);
2730                                 BIO_write(io," ",1);
2731                                 }
2732                         BIO_puts(io,"\n");
2733
2734                         /* The following is evil and should not really
2735                          * be done */
2736                         BIO_printf(io,"Ciphers supported in s_server binary\n");
2737                         sk=SSL_get_ciphers(con);
2738                         j=sk_SSL_CIPHER_num(sk);
2739                         for (i=0; i<j; i++)
2740                                 {
2741                                 c=sk_SSL_CIPHER_value(sk,i);
2742                                 BIO_printf(io,"%-11s:%-25s",
2743                                         SSL_CIPHER_get_version(c),
2744                                         SSL_CIPHER_get_name(c));
2745                                 if ((((i+1)%2) == 0) && (i+1 != j))
2746                                         BIO_puts(io,"\n");
2747                                 }
2748                         BIO_puts(io,"\n");
2749                         p=SSL_get_shared_ciphers(con,buf,bufsize);
2750                         if (p != NULL)
2751                                 {
2752                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
2753                                 j=i=0;
2754                                 while (*p)
2755                                         {
2756                                         if (*p == ':')
2757                                                 {
2758                                                 BIO_write(io,space,26-j);
2759                                                 i++;
2760                                                 j=0;
2761                                                 BIO_write(io,((i%3)?" ":"\n"),1);
2762                                                 }
2763                                         else
2764                                                 {
2765                                                 BIO_write(io,p,1);
2766                                                 j++;
2767                                                 }
2768                                         p++;
2769                                         }
2770                                 BIO_puts(io,"\n");
2771                                 }
2772                         ssl_print_sigalgs(io, con);
2773                         ssl_print_curves(io, con);
2774                         BIO_printf(io,(SSL_cache_hit(con)
2775                                 ?"---\nReused, "
2776                                 :"---\nNew, "));
2777                         c=SSL_get_current_cipher(con);
2778                         BIO_printf(io,"%s, Cipher is %s\n",
2779                                 SSL_CIPHER_get_version(c),
2780                                 SSL_CIPHER_get_name(c));
2781                         SSL_SESSION_print(io,SSL_get_session(con));
2782                         BIO_printf(io,"---\n");
2783                         print_stats(io,SSL_get_SSL_CTX(con));
2784                         BIO_printf(io,"---\n");
2785                         peer=SSL_get_peer_certificate(con);
2786                         if (peer != NULL)
2787                                 {
2788                                 BIO_printf(io,"Client certificate\n");
2789                                 X509_print(io,peer);
2790                                 PEM_write_bio_X509(io,peer);
2791                                 }
2792                         else
2793                                 BIO_puts(io,"no client certificate available\n");
2794                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
2795                         break;
2796                         }
2797                 else if ((www == 2 || www == 3)
2798                          && (strncmp("GET /",buf,5) == 0))
2799                         {
2800                         BIO *file;
2801                         char *p,*e;
2802                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
2803
2804                         /* skip the '/' */
2805                         p= &(buf[5]);
2806
2807                         dot = 1;
2808                         for (e=p; *e != '\0'; e++)
2809                                 {
2810                                 if (e[0] == ' ')
2811                                         break;
2812
2813                                 switch (dot)
2814                                         {
2815                                 case 1:
2816                                         dot = (e[0] == '.') ? 2 : 0;
2817                                         break;
2818                                 case 2:
2819                                         dot = (e[0] == '.') ? 3 : 0;
2820                                         break;
2821                                 case 3:
2822                                         dot = (e[0] == '/') ? -1 : 0;
2823                                         break;
2824                                         }
2825                                 if (dot == 0)
2826                                         dot = (e[0] == '/') ? 1 : 0;
2827                                 }
2828                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
2829
2830                         if (*e == '\0')
2831                                 {
2832                                 BIO_puts(io,text);
2833                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
2834                                 break;
2835                                 }
2836                         *e='\0';
2837
2838                         if (dot)
2839                                 {
2840                                 BIO_puts(io,text);
2841                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
2842                                 break;
2843                                 }
2844
2845                         if (*p == '/')
2846                                 {
2847                                 BIO_puts(io,text);
2848                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
2849                                 break;
2850                                 }
2851
2852 #if 0
2853                         /* append if a directory lookup */
2854                         if (e[-1] == '/')
2855                                 strcat(p,"index.html");
2856 #endif
2857
2858                         /* if a directory, do the index thang */
2859                         if (app_isdir(p)>0)
2860                                 {
2861 #if 0 /* must check buffer size */
2862                                 strcat(p,"/index.html");
2863 #else
2864                                 BIO_puts(io,text);
2865                                 BIO_printf(io,"'%s' is a directory\r\n",p);
2866                                 break;
2867 #endif
2868                                 }
2869
2870                         if ((file=BIO_new_file(p,"r")) == NULL)
2871                                 {
2872                                 BIO_puts(io,text);
2873                                 BIO_printf(io,"Error opening '%s'\r\n",p);
2874                                 ERR_print_errors(io);
2875                                 break;
2876                                 }
2877
2878                         if (!s_quiet)
2879                                 BIO_printf(bio_err,"FILE:%s\n",p);
2880
2881                         if (www == 2)
2882                                 {
2883                                 i=strlen(p);
2884                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
2885                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
2886                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
2887                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2888                                 else
2889                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
2890                                 }
2891                         /* send the file */
2892                         for (;;)
2893                                 {
2894                                 i=BIO_read(file,buf,bufsize);
2895                                 if (i <= 0) break;
2896
2897 #ifdef RENEG
2898                                 total_bytes+=i;
2899                                 fprintf(stderr,"%d\n",i);
2900                                 if (total_bytes > 3*1024)
2901                                         {
2902                                         total_bytes=0;
2903                                         fprintf(stderr,"RENEGOTIATE\n");
2904                                         SSL_renegotiate(con);
2905                                         }
2906 #endif
2907
2908                                 for (j=0; j<i; )
2909                                         {
2910 #ifdef RENEG
2911 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
2912 #endif
2913                                         k=BIO_write(io,&(buf[j]),i-j);
2914                                         if (k <= 0)
2915                                                 {
2916                                                 if (!BIO_should_retry(io))
2917                                                         goto write_error;
2918                                                 else
2919                                                         {
2920                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
2921                                                         }
2922                                                 }
2923                                         else
2924                                                 {
2925                                                 j+=k;
2926                                                 }
2927                                         }
2928                                 }
2929 write_error:
2930                         BIO_free(file);
2931                         break;
2932                         }
2933                 }
2934
2935         for (;;)
2936                 {
2937                 i=(int)BIO_flush(io);
2938                 if (i <= 0)
2939                         {
2940                         if (!BIO_should_retry(io))
2941                                 break;
2942                         }
2943                 else
2944                         break;
2945                 }
2946 end:
2947 #if 1
2948         /* make sure we re-use sessions */
2949         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2950 #else
2951         /* This kills performance */
2952 /*      SSL_shutdown(con); A shutdown gets sent in the
2953  *      BIO_free_all(io) procession */
2954 #endif
2955
2956 err:
2957
2958         if (ret >= 0)
2959                 BIO_printf(bio_s_out,"ACCEPT\n");
2960
2961         if (buf != NULL) OPENSSL_free(buf);
2962         if (io != NULL) BIO_free_all(io);
2963 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
2964         return(ret);
2965         }
2966
2967 #ifndef OPENSSL_NO_RSA
2968 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
2969         {
2970         BIGNUM *bn = NULL;
2971         static RSA *rsa_tmp=NULL;
2972
2973         if (!rsa_tmp && ((bn = BN_new()) == NULL))
2974                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
2975         if (!rsa_tmp && bn)
2976                 {
2977                 if (!s_quiet)
2978                         {
2979                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
2980                         (void)BIO_flush(bio_err);
2981                         }
2982                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
2983                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
2984                         {
2985                         if(rsa_tmp) RSA_free(rsa_tmp);
2986                         rsa_tmp = NULL;
2987                         }
2988                 if (!s_quiet)
2989                         {
2990                         BIO_printf(bio_err,"\n");
2991                         (void)BIO_flush(bio_err);
2992                         }
2993                 BN_free(bn);
2994                 }
2995         return(rsa_tmp);
2996         }
2997 #endif
2998
2999 #define MAX_SESSION_ID_ATTEMPTS 10
3000 static int generate_session_id(const SSL *ssl, unsigned char *id,
3001                                 unsigned int *id_len)
3002         {
3003         unsigned int count = 0;
3004         do      {
3005                 RAND_pseudo_bytes(id, *id_len);
3006                 /* Prefix the session_id with the required prefix. NB: If our
3007                  * prefix is too long, clip it - but there will be worse effects
3008                  * anyway, eg. the server could only possibly create 1 session
3009                  * ID (ie. the prefix!) so all future session negotiations will
3010                  * fail due to conflicts. */
3011                 memcpy(id, session_id_prefix,
3012                         (strlen(session_id_prefix) < *id_len) ?
3013                         strlen(session_id_prefix) : *id_len);
3014                 }
3015         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
3016                 (++count < MAX_SESSION_ID_ATTEMPTS));
3017         if(count >= MAX_SESSION_ID_ATTEMPTS)
3018                 return 0;
3019         return 1;
3020         }