crypto/openssl/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) 1998-2001 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 /* Until the key-gen callbacks are modified to use newer prototypes, we allow
 118  * deprecated functions for openssl-internal code */
 119 #ifdef OPENSSL_NO_DEPRECATED
 120 #undef OPENSSL_NO_DEPRECATED
 121 #endif
 122
 123 #include <assert.h>
 124 #include <stdio.h>
 125 #include <stdlib.h>
 126 #include <string.h>
 127
 128 #include <sys/stat.h>
 129 #include <openssl/e_os2.h>
 130 #ifdef OPENSSL_NO_STDIO
 131 #define APPS_WIN16
 132 #endif
 133
 134 #if !defined(OPENSSL_SYS_NETWARE)  /* conflicts with winsock2 stuff on netware */
 135 #include <sys/types.h>
 136 #endif
 137
 138 /* With IPv6, it looks like Digital has mixed up the proper order of
 139    recursive header file inclusion, resulting in the compiler complaining
 140    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 141    is needed to have fileno() declared correctly...  So let's define u_int */
 142 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 143 #define __U_INT
 144 typedef unsigned int u_int;
 145 #endif
 146
 147 #include <openssl/lhash.h>
 148 #include <openssl/bn.h>
 149 #define USE_SOCKETS
 150 #include "apps.h"
 151 #include <openssl/err.h>
 152 #include <openssl/pem.h>
 153 #include <openssl/x509.h>
 154 #include <openssl/ssl.h>
 155 #include <openssl/rand.h>
 156 #include <openssl/ocsp.h>
 157 #ifndef OPENSSL_NO_DH
 158 #include <openssl/dh.h>
 159 #endif
 160 #ifndef OPENSSL_NO_RSA
 161 #include <openssl/rsa.h>
 162 #endif
 163 #include "s_apps.h"
 164 #include "timeouts.h"
 165
 166 #ifdef OPENSSL_SYS_WINCE
 167 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */
 168 #ifdef fileno
 169 #undef fileno
 170 #endif
 171 #define fileno(a) (int)_fileno(a)
 172 #endif
 173
 174 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 175 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 176 #undef FIONBIO
 177 #endif
 178
 179 #ifndef OPENSSL_NO_RSA
 180 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 181 #endif
 182 static int sv_body(char *hostname, int s, unsigned char *context);
 183 static int www_body(char *hostname, int s, unsigned char *context);
 184 static void close_accept_socket(void );
 185 static void sv_usage(void);
 186 static int init_ssl_connection(SSL *s);
 187 static void print_stats(BIO *bp,SSL_CTX *ctx);
 188 static int generate_session_id(const SSL *ssl, unsigned char *id,
 189                                 unsigned int *id_len);
 190 #ifndef OPENSSL_NO_DH
 191 static DH *load_dh_param(const char *dhfile);
 192 static DH *get_dh512(void);
 193 #endif
 194
 195 #ifdef MONOLITH
 196 static void s_server_init(void);
 197 #endif
 198
 199 #ifndef S_ISDIR
 200 # if defined(_S_IFMT) && defined(_S_IFDIR)
 201 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
 202 # else
 203 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
 204 # endif
 205 #endif
 206
 207 #ifndef OPENSSL_NO_DH
 208 static unsigned char dh512_p[]={
 209         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 210         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 211         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 212         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 213         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 214         0x47,0x74,0xE8,0x33,
 215         };
 216 static unsigned char dh512_g[]={
 217         0x02,
 218         };
 219
 220 static DH *get_dh512(void)
 221         {
 222         DH *dh=NULL;
 223
 224         if ((dh=DH_new()) == NULL) return(NULL);
 225         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 226         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 227         if ((dh->p == NULL) || (dh->g == NULL))
 228                 return(NULL);
 229         return(dh);
 230         }
 231 #endif
 232
 233
 234 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 235
 236 #undef BUFSIZZ
 237 #define BUFSIZZ 16*1024
 238 static int bufsize=BUFSIZZ;
 239 static int accept_socket= -1;
 240
 241 #define TEST_CERT       "server.pem"
 242 #ifndef OPENSSL_NO_TLSEXT
 243 #define TEST_CERT2      "server2.pem"
 244 #endif
 245 #undef PROG
 246 #define PROG            s_server_main
 247
 248 extern int verify_depth;
 249
 250 static char *cipher=NULL;
 251 static int s_server_verify=SSL_VERIFY_NONE;
 252 static int s_server_session_id_context = 1; /* anything will do */
 253 static const char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 254 #ifndef OPENSSL_NO_TLSEXT
 255 static const char *s_cert_file2=TEST_CERT2,*s_key_file2=NULL;
 256 #endif
 257 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 258 #ifdef FIONBIO
 259 static int s_nbio=0;
 260 #endif
 261 static int s_nbio_test=0;
 262 int s_crlf=0;
 263 static SSL_CTX *ctx=NULL;
 264 #ifndef OPENSSL_NO_TLSEXT
 265 static SSL_CTX *ctx2=NULL;
 266 #endif
 267 static int www=0;
 268
 269 static BIO *bio_s_out=NULL;
 270 static int s_debug=0;
 271 #ifndef OPENSSL_NO_TLSEXT
 272 static int s_tlsextdebug=0;
 273 static int s_tlsextstatus=0;
 274 static int cert_status_cb(SSL *s, void *arg);
 275 #endif
 276 static int s_msg=0;
 277 static int s_quiet=0;
 278
 279 static int hack=0;
 280 #ifndef OPENSSL_NO_ENGINE
 281 static char *engine_id=NULL;
 282 #endif
 283 static const char *session_id_prefix=NULL;
 284
 285 static int enable_timeouts = 0;
 286 #ifdef mtu
 287 #undef mtu
 288 #endif
 289 static long mtu;
 290 static int cert_chain = 0;
 291
 292
 293 #ifdef MONOLITH
 294 static void s_server_init(void)
 295         {
 296         accept_socket=-1;
 297         cipher=NULL;
 298         s_server_verify=SSL_VERIFY_NONE;
 299         s_dcert_file=NULL;
 300         s_dkey_file=NULL;
 301         s_cert_file=TEST_CERT;
 302         s_key_file=NULL;
 303 #ifndef OPENSSL_NO_TLSEXT
 304         s_cert_file2=TEST_CERT2;
 305         s_key_file2=NULL;
 306         ctx2=NULL;
 307 #endif
 308 #ifdef FIONBIO
 309         s_nbio=0;
 310 #endif
 311         s_nbio_test=0;
 312         ctx=NULL;
 313         www=0;
 314
 315         bio_s_out=NULL;
 316         s_debug=0;
 317         s_msg=0;
 318         s_quiet=0;
 319         hack=0;
 320 #ifndef OPENSSL_NO_ENGINE
 321         engine_id=NULL;
 322 #endif
 323         }
 324 #endif
 325
 326 static void sv_usage(void)
 327         {
 328         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 329         BIO_printf(bio_err,"\n");
 330         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 331         BIO_printf(bio_err," -context arg  - set session ID context\n");
 332         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 333         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 334         BIO_printf(bio_err," -cert arg     - certificate file to use\n");
 335         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 336         BIO_printf(bio_err," -crl_check    - check the peer certificate has not been revoked by its CA.\n" \
 337                            "                 The CRL(s) are appended to the certificate file\n");
 338         BIO_printf(bio_err," -crl_check_all - check the peer certificate has not been revoked by its CA\n" \
 339                            "                 or any other CRL in the CA chain. CRL(s) are appened to the\n" \
 340                            "                 the certificate file.\n");
 341         BIO_printf(bio_err," -certform arg - certificate format (PEM or DER) PEM default\n");
 342         BIO_printf(bio_err," -key arg      - Private Key file to use, in cert file if\n");
 343         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 344         BIO_printf(bio_err," -keyform arg  - key format (PEM, DER or ENGINE) PEM default\n");
 345         BIO_printf(bio_err," -pass arg     - private key file pass phrase source\n");
 346         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 347         BIO_printf(bio_err," -dcertform x  - second certificate format (PEM or DER) PEM default\n");
 348         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 349         BIO_printf(bio_err," -dkeyform arg - second key format (PEM, DER or ENGINE) PEM default\n");
 350         BIO_printf(bio_err," -dpass arg    - second private key file pass phrase source\n");
 351         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 352         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 353 #ifndef OPENSSL_NO_ECDH
 354         BIO_printf(bio_err," -named_curve arg  - Elliptic curve name to use for ephemeral ECDH keys.\n" \
 355                            "                 Use \"openssl ecparam -list_curves\" for all names\n" \
 356                            "                 (default is sect163r2).\n");
 357 #endif
 358 #ifdef FIONBIO
 359         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 360 #endif
 361         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 362         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 363         BIO_printf(bio_err," -debug        - Print more output\n");
 364         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 365         BIO_printf(bio_err," -state        - Print the SSL states\n");
 366         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 367         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 368         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 369         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 370         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 371         BIO_printf(bio_err," -quiet        - No server output\n");
 372         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 373         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 374         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 375         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 376         BIO_printf(bio_err," -dtls1        - Just talk DTLSv1\n");
 377         BIO_printf(bio_err," -timeout      - Enable timeouts\n");
 378         BIO_printf(bio_err," -mtu          - Set MTU\n");
 379         BIO_printf(bio_err," -chain        - Read a certificate chain\n");
 380         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 381         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 382         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 383 #ifndef OPENSSL_NO_DH
 384         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 385 #endif
 386 #ifndef OPENSSL_NO_ECDH
 387         BIO_printf(bio_err," -no_ecdhe     - Disable ephemeral ECDH\n");
 388 #endif
 389         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 390         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 391         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 392         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 393         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
 394 #ifndef OPENSSL_NO_ENGINE
 395         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 396 #endif
 397         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
 398         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 399 #ifndef OPENSSL_NO_TLSEXT
 400         BIO_printf(bio_err," -servername host - servername for HostName TLS extension\n");
 401         BIO_printf(bio_err," -servername_fatal - on mismatch send fatal alert (default warning alert)\n");
 402         BIO_printf(bio_err," -cert2 arg    - certificate file to use for servername\n");
 403         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT2);
 404         BIO_printf(bio_err," -key2 arg     - Private Key file to use for servername, in cert file if\n");
 405         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT2);
 406         BIO_printf(bio_err," -tlsextdebug  - hex dump of all TLS extensions received\n");
 407         BIO_printf(bio_err," -no_ticket    - disable use of RFC4507bis session tickets\n");
 408 #endif
 409         }
 410
 411 static int local_argc=0;
 412 static char **local_argv;
 413
 414 #ifdef CHARSET_EBCDIC
 415 static int ebcdic_new(BIO *bi);
 416 static int ebcdic_free(BIO *a);
 417 static int ebcdic_read(BIO *b, char *out, int outl);
 418 static int ebcdic_write(BIO *b, const char *in, int inl);
 419 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
 420 static int ebcdic_gets(BIO *bp, char *buf, int size);
 421 static int ebcdic_puts(BIO *bp, const char *str);
 422
 423 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 424 static BIO_METHOD methods_ebcdic=
 425         {
 426         BIO_TYPE_EBCDIC_FILTER,
 427         "EBCDIC/ASCII filter",
 428         ebcdic_write,
 429         ebcdic_read,
 430         ebcdic_puts,
 431         ebcdic_gets,
 432         ebcdic_ctrl,
 433         ebcdic_new,
 434         ebcdic_free,
 435         };
 436
 437 typedef struct
 438 {
 439         size_t  alloced;
 440         char    buff[1];
 441 } EBCDIC_OUTBUFF;
 442
 443 BIO_METHOD *BIO_f_ebcdic_filter()
 444 {
 445         return(&methods_ebcdic);
 446 }
 447
 448 static int ebcdic_new(BIO *bi)
 449 {
 450         EBCDIC_OUTBUFF *wbuf;
 451
 452         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 453         wbuf->alloced = 1024;
 454         wbuf->buff[0] = '\0';
 455
 456         bi->ptr=(char *)wbuf;
 457         bi->init=1;
 458         bi->flags=0;
 459         return(1);
 460 }
 461
 462 static int ebcdic_free(BIO *a)
 463 {
 464         if (a == NULL) return(0);
 465         if (a->ptr != NULL)
 466                 OPENSSL_free(a->ptr);
 467         a->ptr=NULL;
 468         a->init=0;
 469         a->flags=0;
 470         return(1);
 471 }
 472
 473 static int ebcdic_read(BIO *b, char *out, int outl)
 474 {
 475         int ret=0;
 476
 477         if (out == NULL || outl == 0) return(0);
 478         if (b->next_bio == NULL) return(0);
 479
 480         ret=BIO_read(b->next_bio,out,outl);
 481         if (ret > 0)
 482                 ascii2ebcdic(out,out,ret);
 483         return(ret);
 484 }
 485
 486 static int ebcdic_write(BIO *b, const char *in, int inl)
 487 {
 488         EBCDIC_OUTBUFF *wbuf;
 489         int ret=0;
 490         int num;
 491         unsigned char n;
 492
 493         if ((in == NULL) || (inl <= 0)) return(0);
 494         if (b->next_bio == NULL) return(0);
 495
 496         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 497
 498         if (inl > (num = wbuf->alloced))
 499         {
 500                 num = num + num;  /* double the size */
 501                 if (num < inl)
 502                         num = inl;
 503                 OPENSSL_free(wbuf);
 504                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 505
 506                 wbuf->alloced = num;
 507                 wbuf->buff[0] = '\0';
 508
 509                 b->ptr=(char *)wbuf;
 510         }
 511
 512         ebcdic2ascii(wbuf->buff, in, inl);
 513
 514         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 515
 516         return(ret);
 517 }
 518
 519 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
 520 {
 521         long ret;
 522
 523         if (b->next_bio == NULL) return(0);
 524         switch (cmd)
 525         {
 526         case BIO_CTRL_DUP:
 527                 ret=0L;
 528                 break;
 529         default:
 530                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 531                 break;
 532         }
 533         return(ret);
 534 }
 535
 536 static int ebcdic_gets(BIO *bp, char *buf, int size)
 537 {
 538         int i, ret=0;
 539         if (bp->next_bio == NULL) return(0);
 540 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 541         for (i=0; i<size-1; ++i)
 542         {
 543                 ret = ebcdic_read(bp,&buf[i],1);
 544                 if (ret <= 0)
 545                         break;
 546                 else if (buf[i] == '\n')
 547                 {
 548                         ++i;
 549                         break;
 550                 }
 551         }
 552         if (i < size)
 553                 buf[i] = '\0';
 554         return (ret < 0 && i == 0) ? ret : i;
 555 }
 556
 557 static int ebcdic_puts(BIO *bp, const char *str)
 558 {
 559         if (bp->next_bio == NULL) return(0);
 560         return ebcdic_write(bp, str, strlen(str));
 561 }
 562 #endif
 563
 564 #ifndef OPENSSL_NO_TLSEXT
 565
 566 /* This is a context that we pass to callbacks */
 567 typedef struct tlsextctx_st {
 568    char * servername;
 569    BIO * biodebug;
 570    int extension_error;
 571 } tlsextctx;
 572
 573
 574 static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
 575         {
 576         tlsextctx * p = (tlsextctx *) arg;
 577         const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
 578         if (servername && p->biodebug)
 579                 BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
 580
 581         if (!p->servername)
 582                 return SSL_TLSEXT_ERR_NOACK;
 583
 584         if (servername)
 585                 {
 586                 if (strcmp(servername,p->servername))
 587                         return p->extension_error;
 588                 if (ctx2)
 589                         {
 590                         BIO_printf(p->biodebug,"Swiching server context.\n");
 591                         SSL_set_SSL_CTX(s,ctx2);
 592                         }
 593                 }
 594         return SSL_TLSEXT_ERR_OK;
 595 }
 596
 597 /* Structure passed to cert status callback */
 598
 599 typedef struct tlsextstatusctx_st {
 600    /* Default responder to use */
 601    char *host, *path, *port;
 602    int use_ssl;
 603    int timeout;
 604    BIO *err;
 605    int verbose;
 606 } tlsextstatusctx;
 607
 608 static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
 609
 610 /* Certificate Status callback. This is called when a client includes a
 611  * certificate status request extension.
 612  *
 613  * This is a simplified version. It examines certificates each time and
 614  * makes one OCSP responder query for each request.
 615  *
 616  * A full version would store details such as the OCSP certificate IDs and
 617  * minimise the number of OCSP responses by caching them until they were
 618  * considered "expired".
 619  */
 620
 621 static int cert_status_cb(SSL *s, void *arg)
 622         {
 623         tlsextstatusctx *srctx = arg;
 624         BIO *err = srctx->err;
 625         char *host, *port, *path;
 626         int use_ssl;
 627         unsigned char *rspder = NULL;
 628         int rspderlen;
 629         STACK *aia = NULL;
 630         X509 *x = NULL;
 631         X509_STORE_CTX inctx;
 632         X509_OBJECT obj;
 633         OCSP_REQUEST *req = NULL;
 634         OCSP_RESPONSE *resp = NULL;
 635         OCSP_CERTID *id = NULL;
 636         STACK_OF(X509_EXTENSION) *exts;
 637         int ret = SSL_TLSEXT_ERR_NOACK;
 638         int i;
 639 #if 0
 640 STACK_OF(OCSP_RESPID) *ids;
 641 SSL_get_tlsext_status_ids(s, &ids);
 642 BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
 643 #endif
 644         if (srctx->verbose)
 645                 BIO_puts(err, "cert_status: callback called\n");
 646         /* Build up OCSP query from server certificate */
 647         x = SSL_get_certificate(s);
 648         aia = X509_get1_ocsp(x);
 649         if (aia)
 650                 {
 651                 if (!OCSP_parse_url(sk_value(aia, 0),
 652                         &host, &port, &path, &use_ssl))
 653                         {
 654                         BIO_puts(err, "cert_status: can't parse AIA URL\n");
 655                         goto err;
 656                         }
 657                 if (srctx->verbose)
 658                         BIO_printf(err, "cert_status: AIA URL: %s\n",
 659                                         sk_value(aia, 0));
 660                 }
 661         else
 662                 {
 663                 if (!srctx->host)
 664                         {
 665                         BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
 666                         goto done;
 667                         }
 668                 host = srctx->host;
 669                 path = srctx->path;
 670                 port = srctx->port;
 671                 use_ssl = srctx->use_ssl;
 672                 }
 673
 674         if (!X509_STORE_CTX_init(&inctx,
 675                                 SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
 676                                 NULL, NULL))
 677                 goto err;
 678         if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
 679                                 X509_get_issuer_name(x),&obj) <= 0)
 680                 {
 681                 BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
 682                 X509_STORE_CTX_cleanup(&inctx);
 683                 goto done;
 684                 }
 685         req = OCSP_REQUEST_new();
 686         if (!req)
 687                 goto err;
 688         id = OCSP_cert_to_id(NULL, x, obj.data.x509);
 689         X509_free(obj.data.x509);
 690         X509_STORE_CTX_cleanup(&inctx);
 691         if (!id)
 692                 goto err;
 693         if (!OCSP_request_add0_id(req, id))
 694                 goto err;
 695         id = NULL;
 696         /* Add any extensions to the request */
 697         SSL_get_tlsext_status_exts(s, &exts);
 698         for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
 699                 {
 700                 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
 701                 if (!OCSP_REQUEST_add_ext(req, ext, -1))
 702                         goto err;
 703                 }
 704         resp = process_responder(err, req, host, path, port, use_ssl,
 705                                         srctx->timeout);
 706         if (!resp)
 707                 {
 708                 BIO_puts(err, "cert_status: error querying responder\n");
 709                 goto done;
 710                 }
 711         rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
 712         if (rspderlen <= 0)
 713                 goto err;
 714         SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
 715         if (srctx->verbose)
 716                 {
 717                 BIO_puts(err, "cert_status: ocsp response sent:\n");
 718                 OCSP_RESPONSE_print(err, resp, 2);
 719                 }
 720         ret = SSL_TLSEXT_ERR_OK;
 721         done:
 722         if (ret != SSL_TLSEXT_ERR_OK)
 723                 ERR_print_errors(err);
 724         if (aia)
 725                 {
 726                 OPENSSL_free(host);
 727                 OPENSSL_free(path);
 728                 OPENSSL_free(port);
 729                 X509_email_free(aia);
 730                 }
 731         if (id)
 732                 OCSP_CERTID_free(id);
 733         if (req)
 734                 OCSP_REQUEST_free(req);
 735         if (resp)
 736                 OCSP_RESPONSE_free(resp);
 737         return ret;
 738         err:
 739         ret = SSL_TLSEXT_ERR_ALERT_FATAL;
 740         goto done;
 741         }
 742 #endif
 743 int MAIN(int, char **);
 744
 745 #ifndef OPENSSL_NO_JPAKE
 746 static char *jpake_secret = NULL;
 747 #endif
 748
 749 int MAIN(int argc, char *argv[])
 750         {
 751         X509_STORE *store = NULL;
 752         int vflags = 0;
 753         short port=PORT;
 754         char *CApath=NULL,*CAfile=NULL;
 755         unsigned char *context = NULL;
 756         char *dhfile = NULL;
 757 #ifndef OPENSSL_NO_ECDH
 758         char *named_curve = NULL;
 759 #endif
 760         int badop=0,bugs=0;
 761         int ret=1;
 762         int off=0;
 763         int no_tmp_rsa=0,no_dhe=0,no_ecdhe=0,nocert=0;
 764         int state=0;
 765         SSL_METHOD *meth=NULL;
 766         int socket_type=SOCK_STREAM;
 767         ENGINE *e=NULL;
 768         char *inrand=NULL;
 769         int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM;
 770         char *passarg = NULL, *pass = NULL;
 771         char *dpassarg = NULL, *dpass = NULL;
 772         int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM;
 773         X509 *s_cert = NULL, *s_dcert = NULL;
 774         EVP_PKEY *s_key = NULL, *s_dkey = NULL;
 775 #ifndef OPENSSL_NO_TLSEXT
 776         EVP_PKEY *s_key2 = NULL;
 777         X509 *s_cert2 = NULL;
 778 #endif
 779 #ifndef OPENSSL_NO_TLSEXT
 780         tlsextctx tlsextcbp = {NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING};
 781 #endif
 782
 783 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 784         meth=SSLv23_server_method();
 785 #elif !defined(OPENSSL_NO_SSL3)
 786         meth=SSLv3_server_method();
 787 #elif !defined(OPENSSL_NO_SSL2)
 788         meth=SSLv2_server_method();
 789 #endif
 790
 791         local_argc=argc;
 792         local_argv=argv;
 793
 794         apps_startup();
 795 #ifdef MONOLITH
 796         s_server_init();
 797 #endif
 798
 799         if (bio_err == NULL)
 800                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 801
 802         if (!load_config(bio_err, NULL))
 803                 goto end;
 804
 805         verify_depth=0;
 806 #ifdef FIONBIO
 807         s_nbio=0;
 808 #endif
 809         s_nbio_test=0;
 810
 811         argc--;
 812         argv++;
 813
 814         while (argc >= 1)
 815                 {
 816                 if      ((strcmp(*argv,"-port") == 0) ||
 817                          (strcmp(*argv,"-accept") == 0))
 818                         {
 819                         if (--argc < 1) goto bad;
 820                         if (!extract_port(*(++argv),&port))
 821                                 goto bad;
 822                         }
 823                 else if (strcmp(*argv,"-verify") == 0)
 824                         {
 825                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 826                         if (--argc < 1) goto bad;
 827                         verify_depth=atoi(*(++argv));
 828                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 829                         }
 830                 else if (strcmp(*argv,"-Verify") == 0)
 831                         {
 832                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 833                                 SSL_VERIFY_CLIENT_ONCE;
 834                         if (--argc < 1) goto bad;
 835                         verify_depth=atoi(*(++argv));
 836                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 837                         }
 838                 else if (strcmp(*argv,"-context") == 0)
 839                         {
 840                         if (--argc < 1) goto bad;
 841                         context= (unsigned char *)*(++argv);
 842                         }
 843                 else if (strcmp(*argv,"-cert") == 0)
 844                         {
 845                         if (--argc < 1) goto bad;
 846                         s_cert_file= *(++argv);
 847                         }
 848                 else if (strcmp(*argv,"-certform") == 0)
 849                         {
 850                         if (--argc < 1) goto bad;
 851                         s_cert_format = str2fmt(*(++argv));
 852                         }
 853                 else if (strcmp(*argv,"-key") == 0)
 854                         {
 855                         if (--argc < 1) goto bad;
 856                         s_key_file= *(++argv);
 857                         }
 858                 else if (strcmp(*argv,"-keyform") == 0)
 859                         {
 860                         if (--argc < 1) goto bad;
 861                         s_key_format = str2fmt(*(++argv));
 862                         }
 863                 else if (strcmp(*argv,"-pass") == 0)
 864                         {
 865                         if (--argc < 1) goto bad;
 866                         passarg = *(++argv);
 867                         }
 868                 else if (strcmp(*argv,"-dhparam") == 0)
 869                         {
 870                         if (--argc < 1) goto bad;
 871                         dhfile = *(++argv);
 872                         }
 873 #ifndef OPENSSL_NO_ECDH
 874                 else if (strcmp(*argv,"-named_curve") == 0)
 875                         {
 876                         if (--argc < 1) goto bad;
 877                         named_curve = *(++argv);
 878                         }
 879 #endif
 880                 else if (strcmp(*argv,"-dcertform") == 0)
 881                         {
 882                         if (--argc < 1) goto bad;
 883                         s_dcert_format = str2fmt(*(++argv));
 884                         }
 885                 else if (strcmp(*argv,"-dcert") == 0)
 886                         {
 887                         if (--argc < 1) goto bad;
 888                         s_dcert_file= *(++argv);
 889                         }
 890                 else if (strcmp(*argv,"-dkeyform") == 0)
 891                         {
 892                         if (--argc < 1) goto bad;
 893                         s_dkey_format = str2fmt(*(++argv));
 894                         }
 895                 else if (strcmp(*argv,"-dpass") == 0)
 896                         {
 897                         if (--argc < 1) goto bad;
 898                         dpassarg = *(++argv);
 899                         }
 900                 else if (strcmp(*argv,"-dkey") == 0)
 901                         {
 902                         if (--argc < 1) goto bad;
 903                         s_dkey_file= *(++argv);
 904                         }
 905                 else if (strcmp(*argv,"-nocert") == 0)
 906                         {
 907                         nocert=1;
 908                         }
 909                 else if (strcmp(*argv,"-CApath") == 0)
 910                         {
 911                         if (--argc < 1) goto bad;
 912                         CApath= *(++argv);
 913                         }
 914                 else if (strcmp(*argv,"-crl_check") == 0)
 915                         {
 916                         vflags |= X509_V_FLAG_CRL_CHECK;
 917                         }
 918                 else if (strcmp(*argv,"-crl_check_all") == 0)
 919                         {
 920                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 921                         }
 922                 else if (strcmp(*argv,"-serverpref") == 0)
 923                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
 924                 else if (strcmp(*argv,"-cipher") == 0)
 925                         {
 926                         if (--argc < 1) goto bad;
 927                         cipher= *(++argv);
 928                         }
 929                 else if (strcmp(*argv,"-CAfile") == 0)
 930                         {
 931                         if (--argc < 1) goto bad;
 932                         CAfile= *(++argv);
 933                         }
 934 #ifdef FIONBIO
 935                 else if (strcmp(*argv,"-nbio") == 0)
 936                         { s_nbio=1; }
 937 #endif
 938                 else if (strcmp(*argv,"-nbio_test") == 0)
 939                         {
 940 #ifdef FIONBIO
 941                         s_nbio=1;
 942 #endif
 943                         s_nbio_test=1;
 944                         }
 945                 else if (strcmp(*argv,"-debug") == 0)
 946                         { s_debug=1; }
 947 #ifndef OPENSSL_NO_TLSEXT
 948                 else if (strcmp(*argv,"-tlsextdebug") == 0)
 949                         s_tlsextdebug=1;
 950                 else if (strcmp(*argv,"-status") == 0)
 951                         s_tlsextstatus=1;
 952                 else if (strcmp(*argv,"-status_verbose") == 0)
 953                         {
 954                         s_tlsextstatus=1;
 955                         tlscstatp.verbose = 1;
 956                         }
 957                 else if (!strcmp(*argv, "-status_timeout"))
 958                         {
 959                         s_tlsextstatus=1;
 960                         if (--argc < 1) goto bad;
 961                         tlscstatp.timeout = atoi(*(++argv));
 962                         }
 963                 else if (!strcmp(*argv, "-status_url"))
 964                         {
 965                         s_tlsextstatus=1;
 966                         if (--argc < 1) goto bad;
 967                         if (!OCSP_parse_url(*(++argv),
 968                                         &tlscstatp.host,
 969                                         &tlscstatp.port,
 970                                         &tlscstatp.path,
 971                                         &tlscstatp.use_ssl))
 972                                 {
 973                                 BIO_printf(bio_err, "Error parsing URL\n");
 974                                 goto bad;
 975                                 }
 976                         }
 977 #endif
 978                 else if (strcmp(*argv,"-msg") == 0)
 979                         { s_msg=1; }
 980                 else if (strcmp(*argv,"-hack") == 0)
 981                         { hack=1; }
 982                 else if (strcmp(*argv,"-state") == 0)
 983                         { state=1; }
 984                 else if (strcmp(*argv,"-crlf") == 0)
 985                         { s_crlf=1; }
 986                 else if (strcmp(*argv,"-quiet") == 0)
 987                         { s_quiet=1; }
 988                 else if (strcmp(*argv,"-bugs") == 0)
 989                         { bugs=1; }
 990                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 991                         { no_tmp_rsa=1; }
 992                 else if (strcmp(*argv,"-no_dhe") == 0)
 993                         { no_dhe=1; }
 994                 else if (strcmp(*argv,"-no_ecdhe") == 0)
 995                         { no_ecdhe=1; }
 996                 else if (strcmp(*argv,"-www") == 0)
 997                         { www=1; }
 998                 else if (strcmp(*argv,"-WWW") == 0)
 999                         { www=2; }
1000                 else if (strcmp(*argv,"-HTTP") == 0)
1001                         { www=3; }
1002                 else if (strcmp(*argv,"-no_ssl2") == 0)
1003                         { off|=SSL_OP_NO_SSLv2; }
1004                 else if (strcmp(*argv,"-no_ssl3") == 0)
1005                         { off|=SSL_OP_NO_SSLv3; }
1006                 else if (strcmp(*argv,"-no_tls1") == 0)
1007                         { off|=SSL_OP_NO_TLSv1; }
1008 #ifndef OPENSSL_NO_TLSEXT
1009                 else if (strcmp(*argv,"-no_ticket") == 0)
1010                         { off|=SSL_OP_NO_TICKET; }
1011 #endif
1012 #ifndef OPENSSL_NO_SSL2
1013                 else if (strcmp(*argv,"-ssl2") == 0)
1014                         { meth=SSLv2_server_method(); }
1015 #endif
1016 #ifndef OPENSSL_NO_SSL3
1017                 else if (strcmp(*argv,"-ssl3") == 0)
1018                         { meth=SSLv3_server_method(); }
1019 #endif
1020 #ifndef OPENSSL_NO_TLS1
1021                 else if (strcmp(*argv,"-tls1") == 0)
1022                         { meth=TLSv1_server_method(); }
1023 #endif
1024 #ifndef OPENSSL_NO_DTLS1
1025                 else if (strcmp(*argv,"-dtls1") == 0)
1026                         {
1027                         meth=DTLSv1_server_method();
1028                         socket_type = SOCK_DGRAM;
1029                         }
1030                 else if (strcmp(*argv,"-timeout") == 0)
1031                         enable_timeouts = 1;
1032                 else if (strcmp(*argv,"-mtu") == 0)
1033                         {
1034                         if (--argc < 1) goto bad;
1035                         mtu = atol(*(++argv));
1036                         }
1037                 else if (strcmp(*argv, "-chain") == 0)
1038                         cert_chain = 1;
1039 #endif
1040                 else if (strcmp(*argv, "-id_prefix") == 0)
1041                         {
1042                         if (--argc < 1) goto bad;
1043                         session_id_prefix = *(++argv);
1044                         }
1045 #ifndef OPENSSL_NO_ENGINE
1046                 else if (strcmp(*argv,"-engine") == 0)
1047                         {
1048                         if (--argc < 1) goto bad;
1049                         engine_id= *(++argv);
1050                         }
1051 #endif
1052                 else if (strcmp(*argv,"-rand") == 0)
1053                         {
1054                         if (--argc < 1) goto bad;
1055                         inrand= *(++argv);
1056                         }
1057 #ifndef OPENSSL_NO_TLSEXT
1058                 else if (strcmp(*argv,"-servername") == 0)
1059                         {
1060                         if (--argc < 1) goto bad;
1061                         tlsextcbp.servername= *(++argv);
1062                         }
1063                 else if (strcmp(*argv,"-servername_fatal") == 0)
1064                         { tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; }
1065                 else if (strcmp(*argv,"-cert2") == 0)
1066                         {
1067                         if (--argc < 1) goto bad;
1068                         s_cert_file2= *(++argv);
1069                         }
1070                 else if (strcmp(*argv,"-key2") == 0)
1071                         {
1072                         if (--argc < 1) goto bad;
1073                         s_key_file2= *(++argv);
1074                         }
1075
1076 #endif
1077 #ifndef OPENSSL_NO_JPAKE
1078                 else if (strcmp(*argv,"-jpake") == 0)
1079                         {
1080                         if (--argc < 1) goto bad;
1081                         jpake_secret = *(++argv);
1082                         }
1083 #endif
1084                 else
1085                         {
1086                         BIO_printf(bio_err,"unknown option %s\n",*argv);
1087                         badop=1;
1088                         break;
1089                         }
1090                 argc--;
1091                 argv++;
1092                 }
1093         if (badop)
1094                 {
1095 bad:
1096                 sv_usage();
1097                 goto end;
1098                 }
1099
1100         SSL_load_error_strings();
1101         OpenSSL_add_ssl_algorithms();
1102
1103 #ifndef OPENSSL_NO_ENGINE
1104         e = setup_engine(bio_err, engine_id, 1);
1105 #endif
1106
1107         if (!app_passwd(bio_err, passarg, dpassarg, &pass, &dpass))
1108                 {
1109                 BIO_printf(bio_err, "Error getting password\n");
1110                 goto end;
1111                 }
1112
1113
1114         if (s_key_file == NULL)
1115                 s_key_file = s_cert_file;
1116 #ifndef OPENSSL_NO_TLSEXT
1117         if (s_key_file2 == NULL)
1118                 s_key_file2 = s_cert_file2;
1119 #endif
1120
1121         if (nocert == 0)
1122                 {
1123                 s_key = load_key(bio_err, s_key_file, s_key_format, 0, pass, e,
1124                        "server certificate private key file");
1125                 if (!s_key)
1126                         {
1127                         ERR_print_errors(bio_err);
1128                         goto end;
1129                         }
1130
1131                 s_cert = load_cert(bio_err,s_cert_file,s_cert_format,
1132                         NULL, e, "server certificate file");
1133
1134                 if (!s_cert)
1135                         {
1136                         ERR_print_errors(bio_err);
1137                         goto end;
1138                         }
1139
1140 #ifndef OPENSSL_NO_TLSEXT
1141                 if (tlsextcbp.servername)
1142                         {
1143                         s_key2 = load_key(bio_err, s_key_file2, s_key_format, 0, pass, e,
1144                                 "second server certificate private key file");
1145                         if (!s_key2)
1146                                 {
1147                                 ERR_print_errors(bio_err);
1148                                 goto end;
1149                                 }
1150
1151                         s_cert2 = load_cert(bio_err,s_cert_file2,s_cert_format,
1152                                 NULL, e, "second server certificate file");
1153
1154                         if (!s_cert2)
1155                                 {
1156                                 ERR_print_errors(bio_err);
1157                                 goto end;
1158                                 }
1159                         }
1160 #endif
1161                 }
1162         if (s_dcert_file)
1163                 {
1164
1165                 if (s_dkey_file == NULL)
1166                         s_dkey_file = s_dcert_file;
1167
1168                 s_dkey = load_key(bio_err, s_dkey_file, s_dkey_format,
1169                                 0, dpass, e,
1170                                "second certificate private key file");
1171                 if (!s_dkey)
1172                         {
1173                         ERR_print_errors(bio_err);
1174                         goto end;
1175                         }
1176
1177                 s_dcert = load_cert(bio_err,s_dcert_file,s_dcert_format,
1178                                 NULL, e, "second server certificate file");
1179
1180                 if (!s_dcert)
1181                         {
1182                         ERR_print_errors(bio_err);
1183                         goto end;
1184                         }
1185
1186                 }
1187
1188         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
1189                 && !RAND_status())
1190                 {
1191                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
1192                 }
1193         if (inrand != NULL)
1194                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
1195                         app_RAND_load_files(inrand));
1196
1197         if (bio_s_out == NULL)
1198                 {
1199                 if (s_quiet && !s_debug && !s_msg)
1200                         {
1201                         bio_s_out=BIO_new(BIO_s_null());
1202                         }
1203                 else
1204                         {
1205                         if (bio_s_out == NULL)
1206                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
1207                         }
1208                 }
1209
1210 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
1211         if (nocert)
1212 #endif
1213                 {
1214                 s_cert_file=NULL;
1215                 s_key_file=NULL;
1216                 s_dcert_file=NULL;
1217                 s_dkey_file=NULL;
1218 #ifndef OPENSSL_NO_TLSEXT
1219                 s_cert_file2=NULL;
1220                 s_key_file2=NULL;
1221 #endif
1222                 }
1223
1224         ctx=SSL_CTX_new(meth);
1225         if (ctx == NULL)
1226                 {
1227                 ERR_print_errors(bio_err);
1228                 goto end;
1229                 }
1230         if (session_id_prefix)
1231                 {
1232                 if(strlen(session_id_prefix) >= 32)
1233                         BIO_printf(bio_err,
1234 "warning: id_prefix is too long, only one new session will be possible\n");
1235                 else if(strlen(session_id_prefix) >= 16)
1236                         BIO_printf(bio_err,
1237 "warning: id_prefix is too long if you use SSLv2\n");
1238                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
1239                         {
1240                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
1241                         ERR_print_errors(bio_err);
1242                         goto end;
1243                         }
1244                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1245                 }
1246         SSL_CTX_set_quiet_shutdown(ctx,1);
1247         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
1248         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1249         SSL_CTX_set_options(ctx,off);
1250         /* DTLS: partial reads end up discarding unread UDP bytes :-(
1251          * Setting read ahead solves this problem.
1252          */
1253         if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx, 1);
1254
1255         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
1256
1257         SSL_CTX_sess_set_cache_size(ctx,128);
1258
1259 #if 0
1260         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
1261 #endif
1262
1263 #if 0
1264         if (s_cert_file == NULL)
1265                 {
1266                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
1267                 goto end;
1268                 }
1269 #endif
1270
1271         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
1272                 (!SSL_CTX_set_default_verify_paths(ctx)))
1273                 {
1274                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
1275                 ERR_print_errors(bio_err);
1276                 /* goto end; */
1277                 }
1278         store = SSL_CTX_get_cert_store(ctx);
1279         X509_STORE_set_flags(store, vflags);
1280 #ifndef OPENSSL_NO_TLSEXT
1281         if (s_cert2)
1282                 {
1283                 ctx2=SSL_CTX_new(meth);
1284                 if (ctx2 == NULL)
1285                         {
1286                         ERR_print_errors(bio_err);
1287                         goto end;
1288                         }
1289                 }
1290
1291         if (ctx2)
1292                 {
1293                 BIO_printf(bio_s_out,"Setting secondary ctx parameters\n");
1294
1295                 if (session_id_prefix)
1296                         {
1297                         if(strlen(session_id_prefix) >= 32)
1298                                 BIO_printf(bio_err,
1299                                         "warning: id_prefix is too long, only one new session will be possible\n");
1300                         else if(strlen(session_id_prefix) >= 16)
1301                                 BIO_printf(bio_err,
1302                                         "warning: id_prefix is too long if you use SSLv2\n");
1303                         if(!SSL_CTX_set_generate_session_id(ctx2, generate_session_id))
1304                                 {
1305                                 BIO_printf(bio_err,"error setting 'id_prefix'\n");
1306                                 ERR_print_errors(bio_err);
1307                                 goto end;
1308                                 }
1309                         BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
1310                         }
1311                 SSL_CTX_set_quiet_shutdown(ctx2,1);
1312                 if (bugs) SSL_CTX_set_options(ctx2,SSL_OP_ALL);
1313                 if (hack) SSL_CTX_set_options(ctx2,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
1314                 SSL_CTX_set_options(ctx2,off);
1315
1316                 /* DTLS: partial reads end up discarding unread UDP bytes :-(
1317                  * Setting read ahead solves this problem.
1318                  */
1319                 if (socket_type == SOCK_DGRAM) SSL_CTX_set_read_ahead(ctx2, 1);
1320
1321
1322                 if (state) SSL_CTX_set_info_callback(ctx2,apps_ssl_info_callback);
1323
1324                 SSL_CTX_sess_set_cache_size(ctx2,128);
1325
1326                 if ((!SSL_CTX_load_verify_locations(ctx2,CAfile,CApath)) ||
1327                         (!SSL_CTX_set_default_verify_paths(ctx2)))
1328                         {
1329                         ERR_print_errors(bio_err);
1330                         }
1331                 store = SSL_CTX_get_cert_store(ctx2);
1332                 X509_STORE_set_flags(store, vflags);
1333                 }
1334 #endif
1335
1336
1337 #ifndef OPENSSL_NO_DH
1338         if (!no_dhe)
1339                 {
1340                 DH *dh=NULL;
1341
1342                 if (dhfile)
1343                         dh = load_dh_param(dhfile);
1344                 else if (s_cert_file)
1345                         dh = load_dh_param(s_cert_file);
1346
1347                 if (dh != NULL)
1348                         {
1349                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1350                         }
1351                 else
1352                         {
1353                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
1354                         dh=get_dh512();
1355                         }
1356                 (void)BIO_flush(bio_s_out);
1357
1358                 SSL_CTX_set_tmp_dh(ctx,dh);
1359 #ifndef OPENSSL_NO_TLSEXT
1360                 if (ctx2)
1361                         {
1362                         if (!dhfile)
1363                                 {
1364                                 DH *dh2=load_dh_param(s_cert_file2);
1365                                 if (dh2 != NULL)
1366                                         {
1367                                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
1368                                         (void)BIO_flush(bio_s_out);
1369
1370                                         DH_free(dh);
1371                                         dh = dh2;
1372                                         }
1373                                 }
1374                         SSL_CTX_set_tmp_dh(ctx2,dh);
1375                         }
1376 #endif
1377                 DH_free(dh);
1378                 }
1379 #endif
1380
1381 #ifndef OPENSSL_NO_ECDH
1382         if (!no_ecdhe)
1383                 {
1384                 EC_KEY *ecdh=NULL;
1385
1386                 if (named_curve)
1387                         {
1388                         int nid = OBJ_sn2nid(named_curve);
1389
1390                         if (nid == 0)
1391                                 {
1392                                 BIO_printf(bio_err, "unknown curve name (%s)\n",
1393                                         named_curve);
1394                                 goto end;
1395                                 }
1396                         ecdh = EC_KEY_new_by_curve_name(nid);
1397                         if (ecdh == NULL)
1398                                 {
1399                                 BIO_printf(bio_err, "unable to create curve (%s)\n",
1400                                         named_curve);
1401                                 goto end;
1402                                 }
1403                         }
1404
1405                 if (ecdh != NULL)
1406                         {
1407                         BIO_printf(bio_s_out,"Setting temp ECDH parameters\n");
1408                         }
1409                 else
1410                         {
1411                         BIO_printf(bio_s_out,"Using default temp ECDH parameters\n");
1412                         ecdh = EC_KEY_new_by_curve_name(NID_sect163r2);
1413                         if (ecdh == NULL)
1414                                 {
1415                                 BIO_printf(bio_err, "unable to create curve (sect163r2)\n");
1416                                 goto end;
1417                                 }
1418                         }
1419                 (void)BIO_flush(bio_s_out);
1420
1421                 SSL_CTX_set_tmp_ecdh(ctx,ecdh);
1422 #ifndef OPENSSL_NO_TLSEXT
1423                 if (ctx2)
1424                         SSL_CTX_set_tmp_ecdh(ctx2,ecdh);
1425 #endif
1426                 EC_KEY_free(ecdh);
1427                 }
1428 #endif
1429
1430         if (!set_cert_key_stuff(ctx,s_cert,s_key))
1431                 goto end;
1432 #ifndef OPENSSL_NO_TLSEXT
1433         if (ctx2 && !set_cert_key_stuff(ctx2,s_cert2,s_key2))
1434                 goto end;
1435 #endif
1436         if (s_dcert != NULL)
1437                 {
1438                 if (!set_cert_key_stuff(ctx,s_dcert,s_dkey))
1439                         goto end;
1440                 }
1441
1442 #ifndef OPENSSL_NO_RSA
1443 #if 1
1444         if (!no_tmp_rsa)
1445                 {
1446                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
1447 #ifndef OPENSSL_NO_TLSEXT
1448                 if (ctx2)
1449                         SSL_CTX_set_tmp_rsa_callback(ctx2,tmp_rsa_cb);
1450 #endif
1451                 }
1452 #else
1453         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
1454                 {
1455                 RSA *rsa;
1456
1457                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
1458                 BIO_flush(bio_s_out);
1459
1460                 rsa=RSA_generate_key(512,RSA_F4,NULL);
1461
1462                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
1463                         {
1464                         ERR_print_errors(bio_err);
1465                         goto end;
1466                         }
1467 #ifndef OPENSSL_NO_TLSEXT
1468                         if (ctx2)
1469                                 {
1470                                 if (!SSL_CTX_set_tmp_rsa(ctx2,rsa))
1471                                         {
1472                                         ERR_print_errors(bio_err);
1473                                         goto end;
1474                                         }
1475                                 }
1476 #endif
1477                 RSA_free(rsa);
1478                 BIO_printf(bio_s_out,"\n");
1479                 }
1480 #endif
1481 #endif
1482
1483         if (cipher != NULL)
1484                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
1485                 BIO_printf(bio_err,"error setting cipher list\n");
1486                 ERR_print_errors(bio_err);
1487                 goto end;
1488 #ifndef OPENSSL_NO_TLSEXT
1489                 if (ctx2 && !SSL_CTX_set_cipher_list(ctx2,cipher))
1490                         {
1491                         BIO_printf(bio_err,"error setting cipher list\n");
1492                         ERR_print_errors(bio_err);
1493                         goto end;
1494                         }
1495 #endif
1496         }
1497         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
1498         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
1499                 sizeof s_server_session_id_context);
1500
1501 #ifndef OPENSSL_NO_TLSEXT
1502         if (ctx2)
1503                 {
1504                 SSL_CTX_set_verify(ctx2,s_server_verify,verify_callback);
1505                 SSL_CTX_set_session_id_context(ctx2,(void*)&s_server_session_id_context,
1506                         sizeof s_server_session_id_context);
1507
1508                 tlsextcbp.biodebug = bio_s_out;
1509                 SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb);
1510                 SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp);
1511                 SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb);
1512                 SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp);
1513                 }
1514 #endif
1515         if (CAfile != NULL)
1516                 {
1517                 SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
1518 #ifndef OPENSSL_NO_TLSEXT
1519                 if (ctx2)
1520                         SSL_CTX_set_client_CA_list(ctx2,SSL_load_client_CA_file(CAfile));
1521 #endif
1522                 }
1523         BIO_printf(bio_s_out,"ACCEPT\n");
1524         if (www)
1525                 do_server(port,socket_type,&accept_socket,www_body, context);
1526         else
1527                 do_server(port,socket_type,&accept_socket,sv_body, context);
1528         print_stats(bio_s_out,ctx);
1529         ret=0;
1530 end:
1531         if (ctx != NULL) SSL_CTX_free(ctx);
1532         if (s_cert)
1533                 X509_free(s_cert);
1534         if (s_dcert)
1535                 X509_free(s_dcert);
1536         if (s_key)
1537                 EVP_PKEY_free(s_key);
1538         if (s_dkey)
1539                 EVP_PKEY_free(s_dkey);
1540         if (pass)
1541                 OPENSSL_free(pass);
1542         if (dpass)
1543                 OPENSSL_free(dpass);
1544 #ifndef OPENSSL_NO_TLSEXT
1545         if (ctx2 != NULL) SSL_CTX_free(ctx2);
1546         if (s_cert2)
1547                 X509_free(s_cert2);
1548         if (s_key2)
1549                 EVP_PKEY_free(s_key2);
1550 #endif
1551         if (bio_s_out != NULL)
1552                 {
1553         BIO_free(bio_s_out);
1554                 bio_s_out=NULL;
1555                 }
1556         apps_shutdown();
1557         OPENSSL_EXIT(ret);
1558         }
1559
1560 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
1561         {
1562         BIO_printf(bio,"%4ld items in the session cache\n",
1563                 SSL_CTX_sess_number(ssl_ctx));
1564         BIO_printf(bio,"%4ld client connects (SSL_connect())\n",
1565                 SSL_CTX_sess_connect(ssl_ctx));
1566         BIO_printf(bio,"%4ld client renegotiates (SSL_connect())\n",
1567                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
1568         BIO_printf(bio,"%4ld client connects that finished\n",
1569                 SSL_CTX_sess_connect_good(ssl_ctx));
1570         BIO_printf(bio,"%4ld server accepts (SSL_accept())\n",
1571                 SSL_CTX_sess_accept(ssl_ctx));
1572         BIO_printf(bio,"%4ld server renegotiates (SSL_accept())\n",
1573                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
1574         BIO_printf(bio,"%4ld server accepts that finished\n",
1575                 SSL_CTX_sess_accept_good(ssl_ctx));
1576         BIO_printf(bio,"%4ld session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
1577         BIO_printf(bio,"%4ld session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
1578         BIO_printf(bio,"%4ld session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
1579         BIO_printf(bio,"%4ld callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
1580         BIO_printf(bio,"%4ld cache full overflows (%ld allowed)\n",
1581                 SSL_CTX_sess_cache_full(ssl_ctx),
1582                 SSL_CTX_sess_get_cache_size(ssl_ctx));
1583         }
1584
1585 static int sv_body(char *hostname, int s, unsigned char *context)
1586         {
1587         char *buf=NULL;
1588         fd_set readfds;
1589         int ret=1,width;
1590         int k,i;
1591         unsigned long l;
1592         SSL *con=NULL;
1593         BIO *sbio;
1594 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1595         struct timeval tv;
1596 #endif
1597
1598         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
1599                 {
1600                 BIO_printf(bio_err,"out of memory\n");
1601                 goto err;
1602                 }
1603 #ifdef FIONBIO
1604         if (s_nbio)
1605                 {
1606                 unsigned long sl=1;
1607
1608                 if (!s_quiet)
1609                         BIO_printf(bio_err,"turning on non blocking io\n");
1610                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1611                         ERR_print_errors(bio_err);
1612                 }
1613 #endif
1614
1615         if (con == NULL) {
1616                 con=SSL_new(ctx);
1617 #ifndef OPENSSL_NO_TLSEXT
1618         if (s_tlsextdebug)
1619                 {
1620                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1621                 SSL_set_tlsext_debug_arg(con, bio_s_out);
1622                 }
1623         if (s_tlsextstatus)
1624                 {
1625                 SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb);
1626                 tlscstatp.err = bio_err;
1627                 SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp);
1628                 }
1629 #endif
1630 #ifndef OPENSSL_NO_KRB5
1631                 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1632                         {
1633                         kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE,
1634                                                                 KRB5SVC);
1635                         kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB,
1636                                                                 KRB5KEYTAB);
1637                         }
1638 #endif  /* OPENSSL_NO_KRB5 */
1639                 if(context)
1640                       SSL_set_session_id_context(con, context,
1641                                                  strlen((char *)context));
1642         }
1643         SSL_clear(con);
1644
1645         if (SSL_version(con) == DTLS1_VERSION)
1646                 {
1647                 struct timeval timeout;
1648
1649                 sbio=BIO_new_dgram(s,BIO_NOCLOSE);
1650
1651                 if ( enable_timeouts)
1652                         {
1653                         timeout.tv_sec = 0;
1654                         timeout.tv_usec = DGRAM_RCV_TIMEOUT;
1655                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout);
1656
1657                         timeout.tv_sec = 0;
1658                         timeout.tv_usec = DGRAM_SND_TIMEOUT;
1659                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout);
1660                         }
1661
1662
1663                 if ( mtu > 0)
1664                         {
1665                         SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
1666                         SSL_set_mtu(con, mtu);
1667                         }
1668                 else
1669                         /* want to do MTU discovery */
1670                         BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
1671
1672         /* turn on cookie exchange */
1673         SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE);
1674                 }
1675         else
1676                 sbio=BIO_new_socket(s,BIO_NOCLOSE);
1677
1678         if (s_nbio_test)
1679                 {
1680                 BIO *test;
1681
1682                 test=BIO_new(BIO_f_nbio_test());
1683                 sbio=BIO_push(test,sbio);
1684                 }
1685 #ifndef OPENSSL_NO_JPAKE
1686         if(jpake_secret)
1687                 jpake_server_auth(bio_s_out, sbio, jpake_secret);
1688 #endif
1689
1690         SSL_set_bio(con,sbio,sbio);
1691         SSL_set_accept_state(con);
1692         /* SSL_set_fd(con,s); */
1693
1694         if (s_debug)
1695                 {
1696                 con->debug=1;
1697                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
1698                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
1699                 }
1700         if (s_msg)
1701                 {
1702                 SSL_set_msg_callback(con, msg_cb);
1703                 SSL_set_msg_callback_arg(con, bio_s_out);
1704                 }
1705 #ifndef OPENSSL_NO_TLSEXT
1706         if (s_tlsextdebug)
1707                 {
1708                 SSL_set_tlsext_debug_callback(con, tlsext_cb);
1709                 SSL_set_tlsext_debug_arg(con, bio_s_out);
1710                 }
1711 #endif
1712
1713         width=s+1;
1714         for (;;)
1715                 {
1716                 int read_from_terminal;
1717                 int read_from_sslcon;
1718
1719                 read_from_terminal = 0;
1720                 read_from_sslcon = SSL_pending(con);
1721
1722                 if (!read_from_sslcon)
1723                         {
1724                         FD_ZERO(&readfds);
1725 #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_NETWARE)
1726                         FD_SET(fileno(stdin),&readfds);
1727 #endif
1728                         FD_SET(s,&readfds);
1729                         /* Note: under VMS with SOCKETSHR the second parameter is
1730                          * currently of type (int *) whereas under other systems
1731                          * it is (void *) if you don't have a cast it will choke
1732                          * the compiler: if you do have a cast then you can either
1733                          * go for (int *) or (void *).
1734                          */
1735 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_NETWARE)
1736                         /* Under DOS (non-djgpp) and Windows we can't select on stdin: only
1737                          * on sockets. As a workaround we timeout the select every
1738                          * second and check for any keypress. In a proper Windows
1739                          * application we wouldn't do this because it is inefficient.
1740                          */
1741                         tv.tv_sec = 1;
1742                         tv.tv_usec = 0;
1743                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
1744                         if((i < 0) || (!i && !_kbhit() ) )continue;
1745                         if(_kbhit())
1746                                 read_from_terminal = 1;
1747 #else
1748                         i=select(width,(void *)&readfds,NULL,NULL,NULL);
1749                         if (i <= 0) continue;
1750                         if (FD_ISSET(fileno(stdin),&readfds))
1751                                 read_from_terminal = 1;
1752 #endif
1753                         if (FD_ISSET(s,&readfds))
1754                                 read_from_sslcon = 1;
1755                         }
1756                 if (read_from_terminal)
1757                         {
1758                         if (s_crlf)
1759                                 {
1760                                 int j, lf_num;
1761
1762                                 i=read(fileno(stdin), buf, bufsize/2);
1763                                 lf_num = 0;
1764                                 /* both loops are skipped when i <= 0 */
1765                                 for (j = 0; j < i; j++)
1766                                         if (buf[j] == '\n')
1767                                                 lf_num++;
1768                                 for (j = i-1; j >= 0; j--)
1769                                         {
1770                                         buf[j+lf_num] = buf[j];
1771                                         if (buf[j] == '\n')
1772                                                 {
1773                                                 lf_num--;
1774                                                 i++;
1775                                                 buf[j+lf_num] = '\r';
1776                                                 }
1777                                         }
1778                                 assert(lf_num == 0);
1779                                 }
1780                         else
1781                                 i=read(fileno(stdin),buf,bufsize);
1782                         if (!s_quiet)
1783                                 {
1784                                 if ((i <= 0) || (buf[0] == 'Q'))
1785                                         {
1786                                         BIO_printf(bio_s_out,"DONE\n");
1787                                         SHUTDOWN(s);
1788                                         close_accept_socket();
1789                                         ret= -11;
1790                                         goto err;
1791                                         }
1792                                 if ((i <= 0) || (buf[0] == 'q'))
1793                                         {
1794                                         BIO_printf(bio_s_out,"DONE\n");
1795                                         if (SSL_version(con) != DTLS1_VERSION)
1796                         SHUTDOWN(s);
1797         /*                              close_accept_socket();
1798                                         ret= -11;*/
1799                                         goto err;
1800                                         }
1801                                 if ((buf[0] == 'r') &&
1802                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1803                                         {
1804                                         SSL_renegotiate(con);
1805                                         i=SSL_do_handshake(con);
1806                                         printf("SSL_do_handshake -> %d\n",i);
1807                                         i=0; /*13; */
1808                                         continue;
1809                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
1810                                         }
1811                                 if ((buf[0] == 'R') &&
1812                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1813                                         {
1814                                         SSL_set_verify(con,
1815                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
1816                                         SSL_renegotiate(con);
1817                                         i=SSL_do_handshake(con);
1818                                         printf("SSL_do_handshake -> %d\n",i);
1819                                         i=0; /* 13; */
1820                                         continue;
1821                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
1822                                         }
1823                                 if (buf[0] == 'P')
1824                                         {
1825                                         static const char *str="Lets print some clear text\n";
1826                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
1827                                         }
1828                                 if (buf[0] == 'S')
1829                                         {
1830                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
1831                                         }
1832                                 }
1833 #ifdef CHARSET_EBCDIC
1834                         ebcdic2ascii(buf,buf,i);
1835 #endif
1836                         l=k=0;
1837                         for (;;)
1838                                 {
1839                                 /* should do a select for the write */
1840 #ifdef RENEG
1841 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
1842 #endif
1843                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
1844                                 switch (SSL_get_error(con,k))
1845                                         {
1846                                 case SSL_ERROR_NONE:
1847                                         break;
1848                                 case SSL_ERROR_WANT_WRITE:
1849                                 case SSL_ERROR_WANT_READ:
1850                                 case SSL_ERROR_WANT_X509_LOOKUP:
1851                                         BIO_printf(bio_s_out,"Write BLOCK\n");
1852                                         break;
1853                                 case SSL_ERROR_SYSCALL:
1854                                 case SSL_ERROR_SSL:
1855                                         BIO_printf(bio_s_out,"ERROR\n");
1856                                         ERR_print_errors(bio_err);
1857                                         ret=1;
1858                                         goto err;
1859                                         /* break; */
1860                                 case SSL_ERROR_ZERO_RETURN:
1861                                         BIO_printf(bio_s_out,"DONE\n");
1862                                         ret=1;
1863                                         goto err;
1864                                         }
1865                                 l+=k;
1866                                 i-=k;
1867                                 if (i <= 0) break;
1868                                 }
1869                         }
1870                 if (read_from_sslcon)
1871                         {
1872                         if (!SSL_is_init_finished(con))
1873                                 {
1874                                 i=init_ssl_connection(con);
1875
1876                                 if (i < 0)
1877                                         {
1878                                         ret=0;
1879                                         goto err;
1880                                         }
1881                                 else if (i == 0)
1882                                         {
1883                                         ret=1;
1884                                         goto err;
1885                                         }
1886                                 }
1887                         else
1888                                 {
1889 again:
1890                                 i=SSL_read(con,(char *)buf,bufsize);
1891                                 switch (SSL_get_error(con,i))
1892                                         {
1893                                 case SSL_ERROR_NONE:
1894 #ifdef CHARSET_EBCDIC
1895                                         ascii2ebcdic(buf,buf,i);
1896 #endif
1897                                         write(fileno(stdout),buf,
1898                                                 (unsigned int)i);
1899                                         if (SSL_pending(con)) goto again;
1900                                         break;
1901                                 case SSL_ERROR_WANT_WRITE:
1902                                 case SSL_ERROR_WANT_READ:
1903                                 case SSL_ERROR_WANT_X509_LOOKUP:
1904                                         BIO_printf(bio_s_out,"Read BLOCK\n");
1905                                         break;
1906                                 case SSL_ERROR_SYSCALL:
1907                                 case SSL_ERROR_SSL:
1908                                         BIO_printf(bio_s_out,"ERROR\n");
1909                                         ERR_print_errors(bio_err);
1910                                         ret=1;
1911                                         goto err;
1912                                 case SSL_ERROR_ZERO_RETURN:
1913                                         BIO_printf(bio_s_out,"DONE\n");
1914                                         ret=1;
1915                                         goto err;
1916                                         }
1917                                 }
1918                         }
1919                 }
1920 err:
1921         BIO_printf(bio_s_out,"shutting down SSL\n");
1922 #if 1
1923         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1924 #else
1925         SSL_shutdown(con);
1926 #endif
1927         if (con != NULL) SSL_free(con);
1928         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1929         if (buf != NULL)
1930                 {
1931                 OPENSSL_cleanse(buf,bufsize);
1932                 OPENSSL_free(buf);
1933                 }
1934         if (ret >= 0)
1935                 BIO_printf(bio_s_out,"ACCEPT\n");
1936         return(ret);
1937         }
1938
1939 static void close_accept_socket(void)
1940         {
1941         BIO_printf(bio_err,"shutdown accept socket\n");
1942         if (accept_socket >= 0)
1943                 {
1944                 SHUTDOWN2(accept_socket);
1945                 }
1946         }
1947
1948 static int init_ssl_connection(SSL *con)
1949         {
1950         int i;
1951         const char *str;
1952         X509 *peer;
1953         long verify_error;
1954         MS_STATIC char buf[BUFSIZ];
1955
1956         if ((i=SSL_accept(con)) <= 0)
1957                 {
1958                 if (BIO_sock_should_retry(i))
1959                         {
1960                         BIO_printf(bio_s_out,"DELAY\n");
1961                         return(1);
1962                         }
1963
1964                 BIO_printf(bio_err,"ERROR\n");
1965                 verify_error=SSL_get_verify_result(con);
1966                 if (verify_error != X509_V_OK)
1967                         {
1968                         BIO_printf(bio_err,"verify error:%s\n",
1969                                 X509_verify_cert_error_string(verify_error));
1970                         }
1971                 else
1972                         ERR_print_errors(bio_err);
1973                 return(0);
1974                 }
1975
1976         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1977
1978         peer=SSL_get_peer_certificate(con);
1979         if (peer != NULL)
1980                 {
1981                 BIO_printf(bio_s_out,"Client certificate\n");
1982                 PEM_write_bio_X509(bio_s_out,peer);
1983                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
1984                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1985                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
1986                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1987                 X509_free(peer);
1988                 }
1989
1990         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
1991                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1992         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1993         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1994         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1995         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1996                 TLS1_FLAGS_TLS_PADDING_BUG)
1997                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1998 #ifndef OPENSSL_NO_KRB5
1999         if (con->kssl_ctx->client_princ != NULL)
2000                 {
2001                 BIO_printf(bio_s_out,"Kerberos peer principal is %s\n",
2002                         con->kssl_ctx->client_princ);
2003                 }
2004 #endif /* OPENSSL_NO_KRB5 */
2005         return(1);
2006         }
2007
2008 #ifndef OPENSSL_NO_DH
2009 static DH *load_dh_param(const char *dhfile)
2010         {
2011         DH *ret=NULL;
2012         BIO *bio;
2013
2014         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
2015                 goto err;
2016         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
2017 err:
2018         if (bio != NULL) BIO_free(bio);
2019         return(ret);
2020         }
2021 #endif
2022
2023 #if 0
2024 static int load_CA(SSL_CTX *ctx, char *file)
2025         {
2026         FILE *in;
2027         X509 *x=NULL;
2028
2029         if ((in=fopen(file,"r")) == NULL)
2030                 return(0);
2031
2032         for (;;)
2033                 {
2034                 if (PEM_read_X509(in,&x,NULL) == NULL)
2035                         break;
2036                 SSL_CTX_add_client_CA(ctx,x);
2037                 }
2038         if (x != NULL) X509_free(x);
2039         fclose(in);
2040         return(1);
2041         }
2042 #endif
2043
2044 static int www_body(char *hostname, int s, unsigned char *context)
2045         {
2046         char *buf=NULL;
2047         int ret=1;
2048         int i,j,k,blank,dot;
2049         struct stat st_buf;
2050         SSL *con;
2051         SSL_CIPHER *c;
2052         BIO *io,*ssl_bio,*sbio;
2053         long total_bytes;
2054
2055         buf=OPENSSL_malloc(bufsize);
2056         if (buf == NULL) return(0);
2057         io=BIO_new(BIO_f_buffer());
2058         ssl_bio=BIO_new(BIO_f_ssl());
2059         if ((io == NULL) || (ssl_bio == NULL)) goto err;
2060
2061 #ifdef FIONBIO
2062         if (s_nbio)
2063                 {
2064                 unsigned long sl=1;
2065
2066                 if (!s_quiet)
2067                         BIO_printf(bio_err,"turning on non blocking io\n");
2068                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
2069                         ERR_print_errors(bio_err);
2070                 }
2071 #endif
2072
2073         /* lets make the output buffer a reasonable size */
2074         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
2075
2076         if ((con=SSL_new(ctx)) == NULL) goto err;
2077 #ifndef OPENSSL_NO_TLSEXT
2078                 if (s_tlsextdebug)
2079                         {
2080                         SSL_set_tlsext_debug_callback(con, tlsext_cb);
2081                         SSL_set_tlsext_debug_arg(con, bio_s_out);
2082                         }
2083 #endif
2084 #ifndef OPENSSL_NO_KRB5
2085         if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
2086                 {
2087                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
2088                 kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
2089                 }
2090 #endif  /* OPENSSL_NO_KRB5 */
2091         if(context) SSL_set_session_id_context(con, context,
2092                                                strlen((char *)context));
2093
2094         sbio=BIO_new_socket(s,BIO_NOCLOSE);
2095         if (s_nbio_test)
2096                 {
2097                 BIO *test;
2098
2099                 test=BIO_new(BIO_f_nbio_test());
2100                 sbio=BIO_push(test,sbio);
2101                 }
2102         SSL_set_bio(con,sbio,sbio);
2103         SSL_set_accept_state(con);
2104
2105         /* SSL_set_fd(con,s); */
2106         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
2107         BIO_push(io,ssl_bio);
2108 #ifdef CHARSET_EBCDIC
2109         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
2110 #endif
2111
2112         if (s_debug)
2113                 {
2114                 con->debug=1;
2115                 BIO_set_callback(SSL_get_rbio(con),bio_dump_callback);
2116                 BIO_set_callback_arg(SSL_get_rbio(con),(char *)bio_s_out);
2117                 }
2118         if (s_msg)
2119                 {
2120                 SSL_set_msg_callback(con, msg_cb);
2121                 SSL_set_msg_callback_arg(con, bio_s_out);
2122                 }
2123
2124         blank=0;
2125         for (;;)
2126                 {
2127                 if (hack)
2128                         {
2129                         i=SSL_accept(con);
2130
2131                         switch (SSL_get_error(con,i))
2132                                 {
2133                         case SSL_ERROR_NONE:
2134                                 break;
2135                         case SSL_ERROR_WANT_WRITE:
2136                         case SSL_ERROR_WANT_READ:
2137                         case SSL_ERROR_WANT_X509_LOOKUP:
2138                                 continue;
2139                         case SSL_ERROR_SYSCALL:
2140                         case SSL_ERROR_SSL:
2141                         case SSL_ERROR_ZERO_RETURN:
2142                                 ret=1;
2143                                 goto err;
2144                                 /* break; */
2145                                 }
2146
2147                         SSL_renegotiate(con);
2148                         SSL_write(con,NULL,0);
2149                         }
2150
2151                 i=BIO_gets(io,buf,bufsize-1);
2152                 if (i < 0) /* error */
2153                         {
2154                         if (!BIO_should_retry(io))
2155                                 {
2156                                 if (!s_quiet)
2157                                         ERR_print_errors(bio_err);
2158                                 goto err;
2159                                 }
2160                         else
2161                                 {
2162                                 BIO_printf(bio_s_out,"read R BLOCK\n");
2163 #if defined(OPENSSL_SYS_NETWARE)
2164             delay(1000);
2165 #elif !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
2166                                 sleep(1);
2167 #endif
2168                                 continue;
2169                                 }
2170                         }
2171                 else if (i == 0) /* end of input */
2172                         {
2173                         ret=1;
2174                         goto end;
2175                         }
2176
2177                 /* else we have data */
2178                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
2179                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
2180                         {
2181                         char *p;
2182                         X509 *peer;
2183                         STACK_OF(SSL_CIPHER) *sk;
2184                         static const char *space="                          ";
2185
2186                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2187                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
2188                         BIO_puts(io,"<pre>\n");
2189 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
2190                         BIO_puts(io,"\n");
2191                         for (i=0; i<local_argc; i++)
2192                                 {
2193                                 BIO_puts(io,local_argv[i]);
2194                                 BIO_write(io," ",1);
2195                                 }
2196                         BIO_puts(io,"\n");
2197
2198                         /* The following is evil and should not really
2199                          * be done */
2200                         BIO_printf(io,"Ciphers supported in s_server binary\n");
2201                         sk=SSL_get_ciphers(con);
2202                         j=sk_SSL_CIPHER_num(sk);
2203                         for (i=0; i<j; i++)
2204                                 {
2205                                 c=sk_SSL_CIPHER_value(sk,i);
2206                                 BIO_printf(io,"%-11s:%-25s",
2207                                         SSL_CIPHER_get_version(c),
2208                                         SSL_CIPHER_get_name(c));
2209                                 if ((((i+1)%2) == 0) && (i+1 != j))
2210                                         BIO_puts(io,"\n");
2211                                 }
2212                         BIO_puts(io,"\n");
2213                         p=SSL_get_shared_ciphers(con,buf,bufsize);
2214                         if (p != NULL)
2215                                 {
2216                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
2217                                 j=i=0;
2218                                 while (*p)
2219                                         {
2220                                         if (*p == ':')
2221                                                 {
2222                                                 BIO_write(io,space,26-j);
2223                                                 i++;
2224                                                 j=0;
2225                                                 BIO_write(io,((i%3)?" ":"\n"),1);
2226                                                 }
2227                                         else
2228                                                 {
2229                                                 BIO_write(io,p,1);
2230                                                 j++;
2231                                                 }
2232                                         p++;
2233                                         }
2234                                 BIO_puts(io,"\n");
2235                                 }
2236                         BIO_printf(io,((con->hit)
2237                                 ?"---\nReused, "
2238                                 :"---\nNew, "));
2239                         c=SSL_get_current_cipher(con);
2240                         BIO_printf(io,"%s, Cipher is %s\n",
2241                                 SSL_CIPHER_get_version(c),
2242                                 SSL_CIPHER_get_name(c));
2243                         SSL_SESSION_print(io,SSL_get_session(con));
2244                         BIO_printf(io,"---\n");
2245                         print_stats(io,SSL_get_SSL_CTX(con));
2246                         BIO_printf(io,"---\n");
2247                         peer=SSL_get_peer_certificate(con);
2248                         if (peer != NULL)
2249                                 {
2250                                 BIO_printf(io,"Client certificate\n");
2251                                 X509_print(io,peer);
2252                                 PEM_write_bio_X509(io,peer);
2253                                 }
2254                         else
2255                                 BIO_puts(io,"no client certificate available\n");
2256                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
2257                         break;
2258                         }
2259                 else if ((www == 2 || www == 3)
2260                          && (strncmp("GET /",buf,5) == 0))
2261                         {
2262                         BIO *file;
2263                         char *p,*e;
2264                         static const char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
2265
2266                         /* skip the '/' */
2267                         p= &(buf[5]);
2268
2269                         dot = 1;
2270                         for (e=p; *e != '\0'; e++)
2271                                 {
2272                                 if (e[0] == ' ')
2273                                         break;
2274
2275                                 switch (dot)
2276                                         {
2277                                 case 1:
2278                                         dot = (e[0] == '.') ? 2 : 0;
2279                                         break;
2280                                 case 2:
2281                                         dot = (e[0] == '.') ? 3 : 0;
2282                                         break;
2283                                 case 3:
2284                                         dot = (e[0] == '/') ? -1 : 0;
2285                                         break;
2286                                         }
2287                                 if (dot == 0)
2288                                         dot = (e[0] == '/') ? 1 : 0;
2289                                 }
2290                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
2291
2292                         if (*e == '\0')
2293                                 {
2294                                 BIO_puts(io,text);
2295                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
2296                                 break;
2297                                 }
2298                         *e='\0';
2299
2300                         if (dot)
2301                                 {
2302                                 BIO_puts(io,text);
2303                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
2304                                 break;
2305                                 }
2306
2307                         if (*p == '/')
2308                                 {
2309                                 BIO_puts(io,text);
2310                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
2311                                 break;
2312                                 }
2313
2314 #if 0
2315                         /* append if a directory lookup */
2316                         if (e[-1] == '/')
2317                                 strcat(p,"index.html");
2318 #endif
2319
2320                         /* if a directory, do the index thang */
2321                         if (stat(p,&st_buf) < 0)
2322                                 {
2323                                 BIO_puts(io,text);
2324                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
2325                                 ERR_print_errors(io);
2326                                 break;
2327                                 }
2328                         if (S_ISDIR(st_buf.st_mode))
2329                                 {
2330 #if 0 /* must check buffer size */
2331                                 strcat(p,"/index.html");
2332 #else
2333                                 BIO_puts(io,text);
2334                                 BIO_printf(io,"'%s' is a directory\r\n",p);
2335                                 break;
2336 #endif
2337                                 }
2338
2339                         if ((file=BIO_new_file(p,"r")) == NULL)
2340                                 {
2341                                 BIO_puts(io,text);
2342                                 BIO_printf(io,"Error opening '%s'\r\n",p);
2343                                 ERR_print_errors(io);
2344                                 break;
2345                                 }
2346
2347                         if (!s_quiet)
2348                                 BIO_printf(bio_err,"FILE:%s\n",p);
2349
2350                         if (www == 2)
2351                                 {
2352                                 i=strlen(p);
2353                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
2354                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
2355                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
2356                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
2357                                 else
2358                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
2359                                 }
2360                         /* send the file */
2361                         total_bytes=0;
2362                         for (;;)
2363                                 {
2364                                 i=BIO_read(file,buf,bufsize);
2365                                 if (i <= 0) break;
2366
2367 #ifdef RENEG
2368                                 total_bytes+=i;
2369                                 fprintf(stderr,"%d\n",i);
2370                                 if (total_bytes > 3*1024)
2371                                         {
2372                                         total_bytes=0;
2373                                         fprintf(stderr,"RENEGOTIATE\n");
2374                                         SSL_renegotiate(con);
2375                                         }
2376 #endif
2377
2378                                 for (j=0; j<i; )
2379                                         {
2380 #ifdef RENEG
2381 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
2382 #endif
2383                                         k=BIO_write(io,&(buf[j]),i-j);
2384                                         if (k <= 0)
2385                                                 {
2386                                                 if (!BIO_should_retry(io))
2387                                                         goto write_error;
2388                                                 else
2389                                                         {
2390                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
2391                                                         }
2392                                                 }
2393                                         else
2394                                                 {
2395                                                 j+=k;
2396                                                 }
2397                                         }
2398                                 }
2399 write_error:
2400                         BIO_free(file);
2401                         break;
2402                         }
2403                 }
2404
2405         for (;;)
2406                 {
2407                 i=(int)BIO_flush(io);
2408                 if (i <= 0)
2409                         {
2410                         if (!BIO_should_retry(io))
2411                                 break;
2412                         }
2413                 else
2414                         break;
2415                 }
2416 end:
2417 #if 1
2418         /* make sure we re-use sessions */
2419         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
2420 #else
2421         /* This kills performance */
2422 /*      SSL_shutdown(con); A shutdown gets sent in the
2423  *      BIO_free_all(io) procession */
2424 #endif
2425
2426 err:
2427
2428         if (ret >= 0)
2429                 BIO_printf(bio_s_out,"ACCEPT\n");
2430
2431         if (buf != NULL) OPENSSL_free(buf);
2432         if (io != NULL) BIO_free_all(io);
2433 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
2434         return(ret);
2435         }
2436
2437 #ifndef OPENSSL_NO_RSA
2438 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
2439         {
2440         BIGNUM *bn = NULL;
2441         static RSA *rsa_tmp=NULL;
2442
2443         if (!rsa_tmp && ((bn = BN_new()) == NULL))
2444                 BIO_printf(bio_err,"Allocation error in generating RSA key\n");
2445         if (!rsa_tmp && bn)
2446                 {
2447                 if (!s_quiet)
2448                         {
2449                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
2450                         (void)BIO_flush(bio_err);
2451                         }
2452                 if(!BN_set_word(bn, RSA_F4) || ((rsa_tmp = RSA_new()) == NULL) ||
2453                                 !RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
2454                         {
2455                         if(rsa_tmp) RSA_free(rsa_tmp);
2456                         rsa_tmp = NULL;
2457                         }
2458                 if (!s_quiet)
2459                         {
2460                         BIO_printf(bio_err,"\n");
2461                         (void)BIO_flush(bio_err);
2462                         }
2463                 BN_free(bn);
2464                 }
2465         return(rsa_tmp);
2466         }
2467 #endif
2468
2469 #define MAX_SESSION_ID_ATTEMPTS 10
2470 static int generate_session_id(const SSL *ssl, unsigned char *id,
2471                                 unsigned int *id_len)
2472         {
2473         unsigned int count = 0;
2474         do      {
2475                 RAND_pseudo_bytes(id, *id_len);
2476                 /* Prefix the session_id with the required prefix. NB: If our
2477                  * prefix is too long, clip it - but there will be worse effects
2478                  * anyway, eg. the server could only possibly create 1 session
2479                  * ID (ie. the prefix!) so all future session negotiations will
2480                  * fail due to conflicts. */
2481                 memcpy(id, session_id_prefix,
2482                         (strlen(session_id_prefix) < *id_len) ?
2483                         strlen(session_id_prefix) : *id_len);
2484                 }
2485         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
2486                 (++count < MAX_SESSION_ID_ATTEMPTS));
2487         if(count >= MAX_SESSION_ID_ATTEMPTS)
2488                 return 0;
2489         return 1;
2490         }