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 #include <assert.h>
 113 #include <stdio.h>
 114 #include <stdlib.h>
 115 #include <string.h>
 116 #include <sys/types.h>
 117 #include <sys/stat.h>
 118 #include <openssl/e_os2.h>
 119 #ifdef OPENSSL_NO_STDIO
 120 #define APPS_WIN16
 121 #endif
 122
 123 /* With IPv6, it looks like Digital has mixed up the proper order of
 124    recursive header file inclusion, resulting in the compiler complaining
 125    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
 126    is needed to have fileno() declared correctly...  So let's define u_int */
 127 #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
 128 #define __U_INT
 129 typedef unsigned int u_int;
 130 #endif
 131
 132 #include <openssl/lhash.h>
 133 #include <openssl/bn.h>
 134 #define USE_SOCKETS
 135 #include "apps.h"
 136 #include <openssl/err.h>
 137 #include <openssl/pem.h>
 138 #include <openssl/x509.h>
 139 #include <openssl/ssl.h>
 140 #include <openssl/rand.h>
 141 #include "s_apps.h"
 142
 143 #ifdef OPENSSL_SYS_WINDOWS
 144 #include <conio.h>
 145 #endif
 146
 147 #ifdef OPENSSL_SYS_WINCE
 148 /* Windows CE incorrectly defines fileno as returning void*, so to avoid problems below... */
 149 #ifdef fileno
 150 #undef fileno
 151 #endif
 152 #define fileno(a) (int)_fileno(a)
 153 #endif
 154
 155 #if (defined(OPENSSL_SYS_VMS) && __VMS_VER < 70000000)
 156 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
 157 #undef FIONBIO
 158 #endif
 159
 160 #ifndef OPENSSL_NO_RSA
 161 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 162 #endif
 163 static int sv_body(char *hostname, int s, unsigned char *context);
 164 static int www_body(char *hostname, int s, unsigned char *context);
 165 static void close_accept_socket(void );
 166 static void sv_usage(void);
 167 static int init_ssl_connection(SSL *s);
 168 static void print_stats(BIO *bp,SSL_CTX *ctx);
 169 static int generate_session_id(const SSL *ssl, unsigned char *id,
 170                                 unsigned int *id_len);
 171 #ifndef OPENSSL_NO_DH
 172 static DH *load_dh_param(char *dhfile);
 173 static DH *get_dh512(void);
 174 #endif
 175 #ifdef MONOLITH
 176 static void s_server_init(void);
 177 #endif
 178
 179 #ifndef S_ISDIR
 180 # if defined(_S_IFMT) && defined(_S_IFDIR)
 181 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
 182 # else
 183 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
 184 # endif
 185 #endif
 186
 187 #ifndef OPENSSL_NO_DH
 188 static unsigned char dh512_p[]={
 189         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 190         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 191         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 192         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 193         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 194         0x47,0x74,0xE8,0x33,
 195         };
 196 static unsigned char dh512_g[]={
 197         0x02,
 198         };
 199
 200 static DH *get_dh512(void)
 201         {
 202         DH *dh=NULL;
 203
 204         if ((dh=DH_new()) == NULL) return(NULL);
 205         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 206         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 207         if ((dh->p == NULL) || (dh->g == NULL))
 208                 return(NULL);
 209         return(dh);
 210         }
 211 #endif
 212
 213 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 214
 215 #undef BUFSIZZ
 216 #define BUFSIZZ 16*1024
 217 static int bufsize=BUFSIZZ;
 218 static int accept_socket= -1;
 219
 220 #define TEST_CERT       "server.pem"
 221 #undef PROG
 222 #define PROG            s_server_main
 223
 224 extern int verify_depth;
 225
 226 static char *cipher=NULL;
 227 static int s_server_verify=SSL_VERIFY_NONE;
 228 static int s_server_session_id_context = 1; /* anything will do */
 229 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 230 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 231 #ifdef FIONBIO
 232 static int s_nbio=0;
 233 #endif
 234 static int s_nbio_test=0;
 235 int s_crlf=0;
 236 static SSL_CTX *ctx=NULL;
 237 static int www=0;
 238
 239 static BIO *bio_s_out=NULL;
 240 static int s_debug=0;
 241 static int s_msg=0;
 242 static int s_quiet=0;
 243
 244 static int hack=0;
 245 #ifndef OPENSSL_NO_ENGINE
 246 static char *engine_id=NULL;
 247 #endif
 248 static const char *session_id_prefix=NULL;
 249
 250 #ifdef MONOLITH
 251 static void s_server_init(void)
 252         {
 253         accept_socket=-1;
 254         cipher=NULL;
 255         s_server_verify=SSL_VERIFY_NONE;
 256         s_dcert_file=NULL;
 257         s_dkey_file=NULL;
 258         s_cert_file=TEST_CERT;
 259         s_key_file=NULL;
 260 #ifdef FIONBIO
 261         s_nbio=0;
 262 #endif
 263         s_nbio_test=0;
 264         ctx=NULL;
 265         www=0;
 266
 267         bio_s_out=NULL;
 268         s_debug=0;
 269         s_msg=0;
 270         s_quiet=0;
 271         hack=0;
 272 #ifndef OPENSSL_NO_ENGINE
 273         engine_id=NULL;
 274 #endif
 275         }
 276 #endif
 277
 278 static void sv_usage(void)
 279         {
 280         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 281         BIO_printf(bio_err,"\n");
 282         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 283         BIO_printf(bio_err," -context arg  - set session ID context\n");
 284         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 285         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 286         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 287         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 288         BIO_printf(bio_err," -key arg      - Private Key file to use, PEM format assumed, in cert file if\n");
 289         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 290         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 291         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 292         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 293         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 294 #ifdef FIONBIO
 295         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 296 #endif
 297         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 298         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 299         BIO_printf(bio_err," -debug        - Print more output\n");
 300         BIO_printf(bio_err," -msg          - Show protocol messages\n");
 301         BIO_printf(bio_err," -state        - Print the SSL states\n");
 302         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 303         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 304         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 305         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 306         BIO_printf(bio_err," -serverpref   - Use server's cipher preferences\n");
 307         BIO_printf(bio_err," -quiet        - No server output\n");
 308         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 309         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 310         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 311         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 312         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 313         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 314         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 315 #ifndef OPENSSL_NO_DH
 316         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 317 #endif
 318         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 319         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 320         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 321         BIO_printf(bio_err," -HTTP         - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 322         BIO_printf(bio_err,"                 with the assumption it contains a complete HTTP response.\n");
 323 #ifndef OPENSSL_NO_ENGINE
 324         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 325 #endif
 326         BIO_printf(bio_err," -id_prefix arg - Generate SSL/TLS session IDs prefixed by 'arg'\n");
 327         BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
 328         }
 329
 330 static int local_argc=0;
 331 static char **local_argv;
 332
 333 #ifdef CHARSET_EBCDIC
 334 static int ebcdic_new(BIO *bi);
 335 static int ebcdic_free(BIO *a);
 336 static int ebcdic_read(BIO *b, char *out, int outl);
 337 static int ebcdic_write(BIO *b, const char *in, int inl);
 338 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
 339 static int ebcdic_gets(BIO *bp, char *buf, int size);
 340 static int ebcdic_puts(BIO *bp, const char *str);
 341
 342 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 343 static BIO_METHOD methods_ebcdic=
 344         {
 345         BIO_TYPE_EBCDIC_FILTER,
 346         "EBCDIC/ASCII filter",
 347         ebcdic_write,
 348         ebcdic_read,
 349         ebcdic_puts,
 350         ebcdic_gets,
 351         ebcdic_ctrl,
 352         ebcdic_new,
 353         ebcdic_free,
 354         };
 355
 356 typedef struct
 357 {
 358         size_t  alloced;
 359         char    buff[1];
 360 } EBCDIC_OUTBUFF;
 361
 362 BIO_METHOD *BIO_f_ebcdic_filter()
 363 {
 364         return(&methods_ebcdic);
 365 }
 366
 367 static int ebcdic_new(BIO *bi)
 368 {
 369         EBCDIC_OUTBUFF *wbuf;
 370
 371         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 372         wbuf->alloced = 1024;
 373         wbuf->buff[0] = '\0';
 374
 375         bi->ptr=(char *)wbuf;
 376         bi->init=1;
 377         bi->flags=0;
 378         return(1);
 379 }
 380
 381 static int ebcdic_free(BIO *a)
 382 {
 383         if (a == NULL) return(0);
 384         if (a->ptr != NULL)
 385                 OPENSSL_free(a->ptr);
 386         a->ptr=NULL;
 387         a->init=0;
 388         a->flags=0;
 389         return(1);
 390 }
 391
 392 static int ebcdic_read(BIO *b, char *out, int outl)
 393 {
 394         int ret=0;
 395
 396         if (out == NULL || outl == 0) return(0);
 397         if (b->next_bio == NULL) return(0);
 398
 399         ret=BIO_read(b->next_bio,out,outl);
 400         if (ret > 0)
 401                 ascii2ebcdic(out,out,ret);
 402         return(ret);
 403 }
 404
 405 static int ebcdic_write(BIO *b, const char *in, int inl)
 406 {
 407         EBCDIC_OUTBUFF *wbuf;
 408         int ret=0;
 409         int num;
 410         unsigned char n;
 411
 412         if ((in == NULL) || (inl <= 0)) return(0);
 413         if (b->next_bio == NULL) return(0);
 414
 415         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 416
 417         if (inl > (num = wbuf->alloced))
 418         {
 419                 num = num + num;  /* double the size */
 420                 if (num < inl)
 421                         num = inl;
 422                 OPENSSL_free(wbuf);
 423                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 424
 425                 wbuf->alloced = num;
 426                 wbuf->buff[0] = '\0';
 427
 428                 b->ptr=(char *)wbuf;
 429         }
 430
 431         ebcdic2ascii(wbuf->buff, in, inl);
 432
 433         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 434
 435         return(ret);
 436 }
 437
 438 static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
 439 {
 440         long ret;
 441
 442         if (b->next_bio == NULL) return(0);
 443         switch (cmd)
 444         {
 445         case BIO_CTRL_DUP:
 446                 ret=0L;
 447                 break;
 448         default:
 449                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 450                 break;
 451         }
 452         return(ret);
 453 }
 454
 455 static int ebcdic_gets(BIO *bp, char *buf, int size)
 456 {
 457         int i, ret=0;
 458         if (bp->next_bio == NULL) return(0);
 459 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 460         for (i=0; i<size-1; ++i)
 461         {
 462                 ret = ebcdic_read(bp,&buf[i],1);
 463                 if (ret <= 0)
 464                         break;
 465                 else if (buf[i] == '\n')
 466                 {
 467                         ++i;
 468                         break;
 469                 }
 470         }
 471         if (i < size)
 472                 buf[i] = '\0';
 473         return (ret < 0 && i == 0) ? ret : i;
 474 }
 475
 476 static int ebcdic_puts(BIO *bp, const char *str)
 477 {
 478         if (bp->next_bio == NULL) return(0);
 479         return ebcdic_write(bp, str, strlen(str));
 480 }
 481 #endif
 482
 483 int MAIN(int, char **);
 484
 485 int MAIN(int argc, char *argv[])
 486         {
 487         X509_STORE *store = NULL;
 488         int vflags = 0;
 489         short port=PORT;
 490         char *CApath=NULL,*CAfile=NULL;
 491         char *context = NULL;
 492         char *dhfile = NULL;
 493         int badop=0,bugs=0;
 494         int ret=1;
 495         int off=0;
 496         int no_tmp_rsa=0,no_dhe=0,nocert=0;
 497         int state=0;
 498         SSL_METHOD *meth=NULL;
 499 #ifndef OPENSSL_NO_ENGINE
 500         ENGINE *e=NULL;
 501 #endif
 502         char *inrand=NULL;
 503
 504 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 505         meth=SSLv23_server_method();
 506 #elif !defined(OPENSSL_NO_SSL3)
 507         meth=SSLv3_server_method();
 508 #elif !defined(OPENSSL_NO_SSL2)
 509         meth=SSLv2_server_method();
 510 #endif
 511
 512         local_argc=argc;
 513         local_argv=argv;
 514
 515         apps_startup();
 516 #ifdef MONOLITH
 517         s_server_init();
 518 #endif
 519
 520         if (bio_err == NULL)
 521                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 522
 523         if (!load_config(bio_err, NULL))
 524                 goto end;
 525
 526         verify_depth=0;
 527 #ifdef FIONBIO
 528         s_nbio=0;
 529 #endif
 530         s_nbio_test=0;
 531
 532         argc--;
 533         argv++;
 534
 535         while (argc >= 1)
 536                 {
 537                 if      ((strcmp(*argv,"-port") == 0) ||
 538                          (strcmp(*argv,"-accept") == 0))
 539                         {
 540                         if (--argc < 1) goto bad;
 541                         if (!extract_port(*(++argv),&port))
 542                                 goto bad;
 543                         }
 544                 else if (strcmp(*argv,"-verify") == 0)
 545                         {
 546                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 547                         if (--argc < 1) goto bad;
 548                         verify_depth=atoi(*(++argv));
 549                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 550                         }
 551                 else if (strcmp(*argv,"-Verify") == 0)
 552                         {
 553                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 554                                 SSL_VERIFY_CLIENT_ONCE;
 555                         if (--argc < 1) goto bad;
 556                         verify_depth=atoi(*(++argv));
 557                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 558                         }
 559                 else if (strcmp(*argv,"-context") == 0)
 560                         {
 561                         if (--argc < 1) goto bad;
 562                         context= *(++argv);
 563                         }
 564                 else if (strcmp(*argv,"-cert") == 0)
 565                         {
 566                         if (--argc < 1) goto bad;
 567                         s_cert_file= *(++argv);
 568                         }
 569                 else if (strcmp(*argv,"-key") == 0)
 570                         {
 571                         if (--argc < 1) goto bad;
 572                         s_key_file= *(++argv);
 573                         }
 574                 else if (strcmp(*argv,"-dhparam") == 0)
 575                         {
 576                         if (--argc < 1) goto bad;
 577                         dhfile = *(++argv);
 578                         }
 579                 else if (strcmp(*argv,"-dcert") == 0)
 580                         {
 581                         if (--argc < 1) goto bad;
 582                         s_dcert_file= *(++argv);
 583                         }
 584                 else if (strcmp(*argv,"-dkey") == 0)
 585                         {
 586                         if (--argc < 1) goto bad;
 587                         s_dkey_file= *(++argv);
 588                         }
 589                 else if (strcmp(*argv,"-nocert") == 0)
 590                         {
 591                         nocert=1;
 592                         }
 593                 else if (strcmp(*argv,"-CApath") == 0)
 594                         {
 595                         if (--argc < 1) goto bad;
 596                         CApath= *(++argv);
 597                         }
 598                 else if (strcmp(*argv,"-crl_check") == 0)
 599                         {
 600                         vflags |= X509_V_FLAG_CRL_CHECK;
 601                         }
 602                 else if (strcmp(*argv,"-crl_check") == 0)
 603                         {
 604                         vflags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
 605                         }
 606                 else if (strcmp(*argv,"-serverpref") == 0)
 607                         { off|=SSL_OP_CIPHER_SERVER_PREFERENCE; }
 608                 else if (strcmp(*argv,"-cipher") == 0)
 609                         {
 610                         if (--argc < 1) goto bad;
 611                         cipher= *(++argv);
 612                         }
 613                 else if (strcmp(*argv,"-CAfile") == 0)
 614                         {
 615                         if (--argc < 1) goto bad;
 616                         CAfile= *(++argv);
 617                         }
 618 #ifdef FIONBIO
 619                 else if (strcmp(*argv,"-nbio") == 0)
 620                         { s_nbio=1; }
 621 #endif
 622                 else if (strcmp(*argv,"-nbio_test") == 0)
 623                         {
 624 #ifdef FIONBIO
 625                         s_nbio=1;
 626 #endif
 627                         s_nbio_test=1;
 628                         }
 629                 else if (strcmp(*argv,"-debug") == 0)
 630                         { s_debug=1; }
 631                 else if (strcmp(*argv,"-msg") == 0)
 632                         { s_msg=1; }
 633                 else if (strcmp(*argv,"-hack") == 0)
 634                         { hack=1; }
 635                 else if (strcmp(*argv,"-state") == 0)
 636                         { state=1; }
 637                 else if (strcmp(*argv,"-crlf") == 0)
 638                         { s_crlf=1; }
 639                 else if (strcmp(*argv,"-quiet") == 0)
 640                         { s_quiet=1; }
 641                 else if (strcmp(*argv,"-bugs") == 0)
 642                         { bugs=1; }
 643                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 644                         { no_tmp_rsa=1; }
 645                 else if (strcmp(*argv,"-no_dhe") == 0)
 646                         { no_dhe=1; }
 647                 else if (strcmp(*argv,"-www") == 0)
 648                         { www=1; }
 649                 else if (strcmp(*argv,"-WWW") == 0)
 650                         { www=2; }
 651                 else if (strcmp(*argv,"-HTTP") == 0)
 652                         { www=3; }
 653                 else if (strcmp(*argv,"-no_ssl2") == 0)
 654                         { off|=SSL_OP_NO_SSLv2; }
 655                 else if (strcmp(*argv,"-no_ssl3") == 0)
 656                         { off|=SSL_OP_NO_SSLv3; }
 657                 else if (strcmp(*argv,"-no_tls1") == 0)
 658                         { off|=SSL_OP_NO_TLSv1; }
 659 #ifndef OPENSSL_NO_SSL2
 660                 else if (strcmp(*argv,"-ssl2") == 0)
 661                         { meth=SSLv2_server_method(); }
 662 #endif
 663 #ifndef OPENSSL_NO_SSL3
 664                 else if (strcmp(*argv,"-ssl3") == 0)
 665                         { meth=SSLv3_server_method(); }
 666 #endif
 667 #ifndef OPENSSL_NO_TLS1
 668                 else if (strcmp(*argv,"-tls1") == 0)
 669                         { meth=TLSv1_server_method(); }
 670 #endif
 671                 else if (strcmp(*argv, "-id_prefix") == 0)
 672                         {
 673                         if (--argc < 1) goto bad;
 674                         session_id_prefix = *(++argv);
 675                         }
 676 #ifndef OPENSSL_NO_ENGINE
 677                 else if (strcmp(*argv,"-engine") == 0)
 678                         {
 679                         if (--argc < 1) goto bad;
 680                         engine_id= *(++argv);
 681                         }
 682 #endif
 683                 else if (strcmp(*argv,"-rand") == 0)
 684                         {
 685                         if (--argc < 1) goto bad;
 686                         inrand= *(++argv);
 687                         }
 688                 else
 689                         {
 690                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 691                         badop=1;
 692                         break;
 693                         }
 694                 argc--;
 695                 argv++;
 696                 }
 697         if (badop)
 698                 {
 699 bad:
 700                 sv_usage();
 701                 goto end;
 702                 }
 703
 704         SSL_load_error_strings();
 705         OpenSSL_add_ssl_algorithms();
 706
 707 #ifndef OPENSSL_NO_ENGINE
 708         e = setup_engine(bio_err, engine_id, 1);
 709 #endif
 710
 711         if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
 712                 && !RAND_status())
 713                 {
 714                 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
 715                 }
 716         if (inrand != NULL)
 717                 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
 718                         app_RAND_load_files(inrand));
 719
 720         if (bio_s_out == NULL)
 721                 {
 722                 if (s_quiet && !s_debug && !s_msg)
 723                         {
 724                         bio_s_out=BIO_new(BIO_s_null());
 725                         }
 726                 else
 727                         {
 728                         if (bio_s_out == NULL)
 729                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 730                         }
 731                 }
 732
 733 #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA)
 734         if (nocert)
 735 #endif
 736                 {
 737                 s_cert_file=NULL;
 738                 s_key_file=NULL;
 739                 s_dcert_file=NULL;
 740                 s_dkey_file=NULL;
 741                 }
 742
 743         ctx=SSL_CTX_new(meth);
 744         if (ctx == NULL)
 745                 {
 746                 ERR_print_errors(bio_err);
 747                 goto end;
 748                 }
 749         if (session_id_prefix)
 750                 {
 751                 if(strlen(session_id_prefix) >= 32)
 752                         BIO_printf(bio_err,
 753 "warning: id_prefix is too long, only one new session will be possible\n");
 754                 else if(strlen(session_id_prefix) >= 16)
 755                         BIO_printf(bio_err,
 756 "warning: id_prefix is too long if you use SSLv2\n");
 757                 if(!SSL_CTX_set_generate_session_id(ctx, generate_session_id))
 758                         {
 759                         BIO_printf(bio_err,"error setting 'id_prefix'\n");
 760                         ERR_print_errors(bio_err);
 761                         goto end;
 762                         }
 763                 BIO_printf(bio_err,"id_prefix '%s' set.\n", session_id_prefix);
 764                 }
 765         SSL_CTX_set_quiet_shutdown(ctx,1);
 766         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
 767         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
 768         SSL_CTX_set_options(ctx,off);
 769
 770         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 771
 772         SSL_CTX_sess_set_cache_size(ctx,128);
 773
 774 #if 0
 775         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
 776 #endif
 777
 778 #if 0
 779         if (s_cert_file == NULL)
 780                 {
 781                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
 782                 goto end;
 783                 }
 784 #endif
 785
 786         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 787                 (!SSL_CTX_set_default_verify_paths(ctx)))
 788                 {
 789                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
 790                 ERR_print_errors(bio_err);
 791                 /* goto end; */
 792                 }
 793         store = SSL_CTX_get_cert_store(ctx);
 794         X509_STORE_set_flags(store, vflags);
 795
 796 #ifndef OPENSSL_NO_DH
 797         if (!no_dhe)
 798                 {
 799                 DH *dh=NULL;
 800
 801                 if (dhfile)
 802                         dh = load_dh_param(dhfile);
 803                 else if (s_cert_file)
 804                         dh = load_dh_param(s_cert_file);
 805
 806                 if (dh != NULL)
 807                         {
 808                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
 809                         }
 810                 else
 811                         {
 812                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
 813                         dh=get_dh512();
 814                         }
 815                 (void)BIO_flush(bio_s_out);
 816
 817                 SSL_CTX_set_tmp_dh(ctx,dh);
 818                 DH_free(dh);
 819                 }
 820 #endif
 821
 822         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
 823                 goto end;
 824         if (s_dcert_file != NULL)
 825                 {
 826                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
 827                         goto end;
 828                 }
 829
 830 #ifndef OPENSSL_NO_RSA
 831 #if 1
 832         if (!no_tmp_rsa)
 833                 SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
 834 #else
 835         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
 836                 {
 837                 RSA *rsa;
 838
 839                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
 840                 BIO_flush(bio_s_out);
 841
 842                 rsa=RSA_generate_key(512,RSA_F4,NULL);
 843
 844                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
 845                         {
 846                         ERR_print_errors(bio_err);
 847                         goto end;
 848                         }
 849                 RSA_free(rsa);
 850                 BIO_printf(bio_s_out,"\n");
 851                 }
 852 #endif
 853 #endif
 854
 855         if (cipher != NULL)
 856                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 857                 BIO_printf(bio_err,"error setting cipher list\n");
 858                 ERR_print_errors(bio_err);
 859                 goto end;
 860         }
 861         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
 862         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
 863                 sizeof s_server_session_id_context);
 864
 865         if (CAfile != NULL)
 866             SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
 867
 868         BIO_printf(bio_s_out,"ACCEPT\n");
 869         if (www)
 870                 do_server(port,&accept_socket,www_body, context);
 871         else
 872                 do_server(port,&accept_socket,sv_body, context);
 873         print_stats(bio_s_out,ctx);
 874         ret=0;
 875 end:
 876         if (ctx != NULL) SSL_CTX_free(ctx);
 877         if (bio_s_out != NULL)
 878                 {
 879                 BIO_free(bio_s_out);
 880                 bio_s_out=NULL;
 881                 }
 882         apps_shutdown();
 883         OPENSSL_EXIT(ret);
 884         }
 885
 886 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
 887         {
 888         BIO_printf(bio,"%4ld items in the session cache\n",
 889                 SSL_CTX_sess_number(ssl_ctx));
 890         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
 891                 SSL_CTX_sess_connect(ssl_ctx));
 892         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
 893                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
 894         BIO_printf(bio,"%4d client connects that finished\n",
 895                 SSL_CTX_sess_connect_good(ssl_ctx));
 896         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
 897                 SSL_CTX_sess_accept(ssl_ctx));
 898         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
 899                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
 900         BIO_printf(bio,"%4d server accepts that finished\n",
 901                 SSL_CTX_sess_accept_good(ssl_ctx));
 902         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
 903         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
 904         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
 905         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
 906         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
 907                 SSL_CTX_sess_cache_full(ssl_ctx),
 908                 SSL_CTX_sess_get_cache_size(ssl_ctx));
 909         }
 910
 911 static int sv_body(char *hostname, int s, unsigned char *context)
 912         {
 913         char *buf=NULL;
 914         fd_set readfds;
 915         int ret=1,width;
 916         int k,i;
 917         unsigned long l;
 918         SSL *con=NULL;
 919         BIO *sbio;
 920 #ifdef OPENSSL_SYS_WINDOWS
 921         struct timeval tv;
 922 #endif
 923
 924         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
 925                 {
 926                 BIO_printf(bio_err,"out of memory\n");
 927                 goto err;
 928                 }
 929 #ifdef FIONBIO
 930         if (s_nbio)
 931                 {
 932                 unsigned long sl=1;
 933
 934                 if (!s_quiet)
 935                         BIO_printf(bio_err,"turning on non blocking io\n");
 936                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
 937                         ERR_print_errors(bio_err);
 938                 }
 939 #endif
 940
 941         if (con == NULL) {
 942                 con=SSL_new(ctx);
 943 #ifndef OPENSSL_NO_KRB5
 944                 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
 945                         {
 946                         kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE,
 947                                                                 KRB5SVC);
 948                         kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB,
 949                                                                 KRB5KEYTAB);
 950                         }
 951 #endif  /* OPENSSL_NO_KRB5 */
 952                 if(context)
 953                       SSL_set_session_id_context(con, context,
 954                                                  strlen((char *)context));
 955         }
 956         SSL_clear(con);
 957
 958         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 959         if (s_nbio_test)
 960                 {
 961                 BIO *test;
 962
 963                 test=BIO_new(BIO_f_nbio_test());
 964                 sbio=BIO_push(test,sbio);
 965                 }
 966         SSL_set_bio(con,sbio,sbio);
 967         SSL_set_accept_state(con);
 968         /* SSL_set_fd(con,s); */
 969
 970         if (s_debug)
 971                 {
 972                 con->debug=1;
 973                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
 974                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
 975                 }
 976         if (s_msg)
 977                 {
 978                 SSL_set_msg_callback(con, msg_cb);
 979                 SSL_set_msg_callback_arg(con, bio_s_out);
 980                 }
 981
 982         width=s+1;
 983         for (;;)
 984                 {
 985                 int read_from_terminal;
 986                 int read_from_sslcon;
 987
 988                 read_from_terminal = 0;
 989                 read_from_sslcon = SSL_pending(con);
 990
 991                 if (!read_from_sslcon)
 992                         {
 993                         FD_ZERO(&readfds);
 994 #ifndef OPENSSL_SYS_WINDOWS
 995                         FD_SET(fileno(stdin),&readfds);
 996 #endif
 997                         FD_SET(s,&readfds);
 998                         /* Note: under VMS with SOCKETSHR the second parameter is
 999                          * currently of type (int *) whereas under other systems
1000                          * it is (void *) if you don't have a cast it will choke
1001                          * the compiler: if you do have a cast then you can either
1002                          * go for (int *) or (void *).
1003                          */
1004 #ifdef OPENSSL_SYS_WINDOWS
1005                         /* Under Windows we can't select on stdin: only
1006                          * on sockets. As a workaround we timeout the select every
1007                          * second and check for any keypress. In a proper Windows
1008                          * application we wouldn't do this because it is inefficient.
1009                          */
1010                         tv.tv_sec = 1;
1011                         tv.tv_usec = 0;
1012                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
1013                         if((i < 0) || (!i && !_kbhit() ) )continue;
1014                         if(_kbhit())
1015                                 read_from_terminal = 1;
1016 #else
1017                         i=select(width,(void *)&readfds,NULL,NULL,NULL);
1018                         if (i <= 0) continue;
1019                         if (FD_ISSET(fileno(stdin),&readfds))
1020                                 read_from_terminal = 1;
1021 #endif
1022                         if (FD_ISSET(s,&readfds))
1023                                 read_from_sslcon = 1;
1024                         }
1025                 if (read_from_terminal)
1026                         {
1027                         if (s_crlf)
1028                                 {
1029                                 int j, lf_num;
1030
1031                                 i=read(fileno(stdin), buf, bufsize/2);
1032                                 lf_num = 0;
1033                                 /* both loops are skipped when i <= 0 */
1034                                 for (j = 0; j < i; j++)
1035                                         if (buf[j] == '\n')
1036                                                 lf_num++;
1037                                 for (j = i-1; j >= 0; j--)
1038                                         {
1039                                         buf[j+lf_num] = buf[j];
1040                                         if (buf[j] == '\n')
1041                                                 {
1042                                                 lf_num--;
1043                                                 i++;
1044                                                 buf[j+lf_num] = '\r';
1045                                                 }
1046                                         }
1047                                 assert(lf_num == 0);
1048                                 }
1049                         else
1050                                 i=read(fileno(stdin),buf,bufsize);
1051                         if (!s_quiet)
1052                                 {
1053                                 if ((i <= 0) || (buf[0] == 'Q'))
1054                                         {
1055                                         BIO_printf(bio_s_out,"DONE\n");
1056                                         SHUTDOWN(s);
1057                                         close_accept_socket();
1058                                         ret= -11;
1059                                         goto err;
1060                                         }
1061                                 if ((i <= 0) || (buf[0] == 'q'))
1062                                         {
1063                                         BIO_printf(bio_s_out,"DONE\n");
1064                                         SHUTDOWN(s);
1065         /*                              close_accept_socket();
1066                                         ret= -11;*/
1067                                         goto err;
1068                                         }
1069                                 if ((buf[0] == 'r') &&
1070                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1071                                         {
1072                                         SSL_renegotiate(con);
1073                                         i=SSL_do_handshake(con);
1074                                         printf("SSL_do_handshake -> %d\n",i);
1075                                         i=0; /*13; */
1076                                         continue;
1077                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
1078                                         }
1079                                 if ((buf[0] == 'R') &&
1080                                         ((buf[1] == '\n') || (buf[1] == '\r')))
1081                                         {
1082                                         SSL_set_verify(con,
1083                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
1084                                         SSL_renegotiate(con);
1085                                         i=SSL_do_handshake(con);
1086                                         printf("SSL_do_handshake -> %d\n",i);
1087                                         i=0; /* 13; */
1088                                         continue;
1089                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
1090                                         }
1091                                 if (buf[0] == 'P')
1092                                         {
1093                                         static char *str="Lets print some clear text\n";
1094                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
1095                                         }
1096                                 if (buf[0] == 'S')
1097                                         {
1098                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
1099                                         }
1100                                 }
1101 #ifdef CHARSET_EBCDIC
1102                         ebcdic2ascii(buf,buf,i);
1103 #endif
1104                         l=k=0;
1105                         for (;;)
1106                                 {
1107                                 /* should do a select for the write */
1108 #ifdef RENEG
1109 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
1110 #endif
1111                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
1112                                 switch (SSL_get_error(con,k))
1113                                         {
1114                                 case SSL_ERROR_NONE:
1115                                         break;
1116                                 case SSL_ERROR_WANT_WRITE:
1117                                 case SSL_ERROR_WANT_READ:
1118                                 case SSL_ERROR_WANT_X509_LOOKUP:
1119                                         BIO_printf(bio_s_out,"Write BLOCK\n");
1120                                         break;
1121                                 case SSL_ERROR_SYSCALL:
1122                                 case SSL_ERROR_SSL:
1123                                         BIO_printf(bio_s_out,"ERROR\n");
1124                                         ERR_print_errors(bio_err);
1125                                         ret=1;
1126                                         goto err;
1127                                         /* break; */
1128                                 case SSL_ERROR_ZERO_RETURN:
1129                                         BIO_printf(bio_s_out,"DONE\n");
1130                                         ret=1;
1131                                         goto err;
1132                                         }
1133                                 l+=k;
1134                                 i-=k;
1135                                 if (i <= 0) break;
1136                                 }
1137                         }
1138                 if (read_from_sslcon)
1139                         {
1140                         if (!SSL_is_init_finished(con))
1141                                 {
1142                                 i=init_ssl_connection(con);
1143
1144                                 if (i < 0)
1145                                         {
1146                                         ret=0;
1147                                         goto err;
1148                                         }
1149                                 else if (i == 0)
1150                                         {
1151                                         ret=1;
1152                                         goto err;
1153                                         }
1154                                 }
1155                         else
1156                                 {
1157 again:
1158                                 i=SSL_read(con,(char *)buf,bufsize);
1159                                 switch (SSL_get_error(con,i))
1160                                         {
1161                                 case SSL_ERROR_NONE:
1162 #ifdef CHARSET_EBCDIC
1163                                         ascii2ebcdic(buf,buf,i);
1164 #endif
1165                                         write(fileno(stdout),buf,
1166                                                 (unsigned int)i);
1167                                         if (SSL_pending(con)) goto again;
1168                                         break;
1169                                 case SSL_ERROR_WANT_WRITE:
1170                                 case SSL_ERROR_WANT_READ:
1171                                 case SSL_ERROR_WANT_X509_LOOKUP:
1172                                         BIO_printf(bio_s_out,"Read BLOCK\n");
1173                                         break;
1174                                 case SSL_ERROR_SYSCALL:
1175                                 case SSL_ERROR_SSL:
1176                                         BIO_printf(bio_s_out,"ERROR\n");
1177                                         ERR_print_errors(bio_err);
1178                                         ret=1;
1179                                         goto err;
1180                                 case SSL_ERROR_ZERO_RETURN:
1181                                         BIO_printf(bio_s_out,"DONE\n");
1182                                         ret=1;
1183                                         goto err;
1184                                         }
1185                                 }
1186                         }
1187                 }
1188 err:
1189         BIO_printf(bio_s_out,"shutting down SSL\n");
1190 #if 1
1191         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1192 #else
1193         SSL_shutdown(con);
1194 #endif
1195         if (con != NULL) SSL_free(con);
1196         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1197         if (buf != NULL)
1198                 {
1199                 OPENSSL_cleanse(buf,bufsize);
1200                 OPENSSL_free(buf);
1201                 }
1202         if (ret >= 0)
1203                 BIO_printf(bio_s_out,"ACCEPT\n");
1204         return(ret);
1205         }
1206
1207 static void close_accept_socket(void)
1208         {
1209         BIO_printf(bio_err,"shutdown accept socket\n");
1210         if (accept_socket >= 0)
1211                 {
1212                 SHUTDOWN2(accept_socket);
1213                 }
1214         }
1215
1216 static int init_ssl_connection(SSL *con)
1217         {
1218         int i;
1219         const char *str;
1220         X509 *peer;
1221         long verify_error;
1222         MS_STATIC char buf[BUFSIZ];
1223
1224         if ((i=SSL_accept(con)) <= 0)
1225                 {
1226                 if (BIO_sock_should_retry(i))
1227                         {
1228                         BIO_printf(bio_s_out,"DELAY\n");
1229                         return(1);
1230                         }
1231
1232                 BIO_printf(bio_err,"ERROR\n");
1233                 verify_error=SSL_get_verify_result(con);
1234                 if (verify_error != X509_V_OK)
1235                         {
1236                         BIO_printf(bio_err,"verify error:%s\n",
1237                                 X509_verify_cert_error_string(verify_error));
1238                         }
1239                 else
1240                         ERR_print_errors(bio_err);
1241                 return(0);
1242                 }
1243
1244         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1245
1246         peer=SSL_get_peer_certificate(con);
1247         if (peer != NULL)
1248                 {
1249                 BIO_printf(bio_s_out,"Client certificate\n");
1250                 PEM_write_bio_X509(bio_s_out,peer);
1251                 X509_NAME_oneline(X509_get_subject_name(peer),buf,sizeof buf);
1252                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1253                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,sizeof buf);
1254                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1255                 X509_free(peer);
1256                 }
1257
1258         if (SSL_get_shared_ciphers(con,buf,sizeof buf) != NULL)
1259                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1260         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1261         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1262         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1263         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1264                 TLS1_FLAGS_TLS_PADDING_BUG)
1265                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1266
1267         return(1);
1268         }
1269
1270 #ifndef OPENSSL_NO_DH
1271 static DH *load_dh_param(char *dhfile)
1272         {
1273         DH *ret=NULL;
1274         BIO *bio;
1275
1276         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1277                 goto err;
1278         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1279 err:
1280         if (bio != NULL) BIO_free(bio);
1281         return(ret);
1282         }
1283 #endif
1284
1285 #if 0
1286 static int load_CA(SSL_CTX *ctx, char *file)
1287         {
1288         FILE *in;
1289         X509 *x=NULL;
1290
1291         if ((in=fopen(file,"r")) == NULL)
1292                 return(0);
1293
1294         for (;;)
1295                 {
1296                 if (PEM_read_X509(in,&x,NULL) == NULL)
1297                         break;
1298                 SSL_CTX_add_client_CA(ctx,x);
1299                 }
1300         if (x != NULL) X509_free(x);
1301         fclose(in);
1302         return(1);
1303         }
1304 #endif
1305
1306 static int www_body(char *hostname, int s, unsigned char *context)
1307         {
1308         char *buf=NULL;
1309         int ret=1;
1310         int i,j,k,blank,dot;
1311         struct stat st_buf;
1312         SSL *con;
1313         SSL_CIPHER *c;
1314         BIO *io,*ssl_bio,*sbio;
1315         long total_bytes;
1316
1317         buf=OPENSSL_malloc(bufsize);
1318         if (buf == NULL) return(0);
1319         io=BIO_new(BIO_f_buffer());
1320         ssl_bio=BIO_new(BIO_f_ssl());
1321         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1322
1323 #ifdef FIONBIO
1324         if (s_nbio)
1325                 {
1326                 unsigned long sl=1;
1327
1328                 if (!s_quiet)
1329                         BIO_printf(bio_err,"turning on non blocking io\n");
1330                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1331                         ERR_print_errors(bio_err);
1332                 }
1333 #endif
1334
1335         /* lets make the output buffer a reasonable size */
1336         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1337
1338         if ((con=SSL_new(ctx)) == NULL) goto err;
1339 #ifndef OPENSSL_NO_KRB5
1340         if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
1341                 {
1342                 kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
1343                 kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
1344                 }
1345 #endif  /* OPENSSL_NO_KRB5 */
1346         if(context) SSL_set_session_id_context(con, context,
1347                                                strlen((char *)context));
1348
1349         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1350         if (s_nbio_test)
1351                 {
1352                 BIO *test;
1353
1354                 test=BIO_new(BIO_f_nbio_test());
1355                 sbio=BIO_push(test,sbio);
1356                 }
1357         SSL_set_bio(con,sbio,sbio);
1358         SSL_set_accept_state(con);
1359
1360         /* SSL_set_fd(con,s); */
1361         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1362         BIO_push(io,ssl_bio);
1363 #ifdef CHARSET_EBCDIC
1364         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1365 #endif
1366
1367         if (s_debug)
1368                 {
1369                 con->debug=1;
1370                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1371                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1372                 }
1373         if (s_msg)
1374                 {
1375                 SSL_set_msg_callback(con, msg_cb);
1376                 SSL_set_msg_callback_arg(con, bio_s_out);
1377                 }
1378
1379         blank=0;
1380         for (;;)
1381                 {
1382                 if (hack)
1383                         {
1384                         i=SSL_accept(con);
1385
1386                         switch (SSL_get_error(con,i))
1387                                 {
1388                         case SSL_ERROR_NONE:
1389                                 break;
1390                         case SSL_ERROR_WANT_WRITE:
1391                         case SSL_ERROR_WANT_READ:
1392                         case SSL_ERROR_WANT_X509_LOOKUP:
1393                                 continue;
1394                         case SSL_ERROR_SYSCALL:
1395                         case SSL_ERROR_SSL:
1396                         case SSL_ERROR_ZERO_RETURN:
1397                                 ret=1;
1398                                 goto err;
1399                                 /* break; */
1400                                 }
1401
1402                         SSL_renegotiate(con);
1403                         SSL_write(con,NULL,0);
1404                         }
1405
1406                 i=BIO_gets(io,buf,bufsize-1);
1407                 if (i < 0) /* error */
1408                         {
1409                         if (!BIO_should_retry(io))
1410                                 {
1411                                 if (!s_quiet)
1412                                         ERR_print_errors(bio_err);
1413                                 goto err;
1414                                 }
1415                         else
1416                                 {
1417                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1418 #if !defined(OPENSSL_SYS_MSDOS) && !defined(__DJGPP__)
1419                                 sleep(1);
1420 #endif
1421                                 continue;
1422                                 }
1423                         }
1424                 else if (i == 0) /* end of input */
1425                         {
1426                         ret=1;
1427                         goto end;
1428                         }
1429
1430                 /* else we have data */
1431                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1432                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1433                         {
1434                         char *p;
1435                         X509 *peer;
1436                         STACK_OF(SSL_CIPHER) *sk;
1437                         static char *space="                          ";
1438
1439                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1440                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1441                         BIO_puts(io,"<pre>\n");
1442 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1443                         BIO_puts(io,"\n");
1444                         for (i=0; i<local_argc; i++)
1445                                 {
1446                                 BIO_puts(io,local_argv[i]);
1447                                 BIO_write(io," ",1);
1448                                 }
1449                         BIO_puts(io,"\n");
1450
1451                         /* The following is evil and should not really
1452                          * be done */
1453                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1454                         sk=SSL_get_ciphers(con);
1455                         j=sk_SSL_CIPHER_num(sk);
1456                         for (i=0; i<j; i++)
1457                                 {
1458                                 c=sk_SSL_CIPHER_value(sk,i);
1459                                 BIO_printf(io,"%-11s:%-25s",
1460                                         SSL_CIPHER_get_version(c),
1461                                         SSL_CIPHER_get_name(c));
1462                                 if ((((i+1)%2) == 0) && (i+1 != j))
1463                                         BIO_puts(io,"\n");
1464                                 }
1465                         BIO_puts(io,"\n");
1466                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1467                         if (p != NULL)
1468                                 {
1469                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1470                                 j=i=0;
1471                                 while (*p)
1472                                         {
1473                                         if (*p == ':')
1474                                                 {
1475                                                 BIO_write(io,space,26-j);
1476                                                 i++;
1477                                                 j=0;
1478                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1479                                                 }
1480                                         else
1481                                                 {
1482                                                 BIO_write(io,p,1);
1483                                                 j++;
1484                                                 }
1485                                         p++;
1486                                         }
1487                                 BIO_puts(io,"\n");
1488                                 }
1489                         BIO_printf(io,((con->hit)
1490                                 ?"---\nReused, "
1491                                 :"---\nNew, "));
1492                         c=SSL_get_current_cipher(con);
1493                         BIO_printf(io,"%s, Cipher is %s\n",
1494                                 SSL_CIPHER_get_version(c),
1495                                 SSL_CIPHER_get_name(c));
1496                         SSL_SESSION_print(io,SSL_get_session(con));
1497                         BIO_printf(io,"---\n");
1498                         print_stats(io,SSL_get_SSL_CTX(con));
1499                         BIO_printf(io,"---\n");
1500                         peer=SSL_get_peer_certificate(con);
1501                         if (peer != NULL)
1502                                 {
1503                                 BIO_printf(io,"Client certificate\n");
1504                                 X509_print(io,peer);
1505                                 PEM_write_bio_X509(io,peer);
1506                                 }
1507                         else
1508                                 BIO_puts(io,"no client certificate available\n");
1509                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1510                         break;
1511                         }
1512                 else if ((www == 2 || www == 3)
1513                          && (strncmp("GET /",buf,5) == 0))
1514                         {
1515                         BIO *file;
1516                         char *p,*e;
1517                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1518
1519                         /* skip the '/' */
1520                         p= &(buf[5]);
1521
1522                         dot = 1;
1523                         for (e=p; *e != '\0'; e++)
1524                                 {
1525                                 if (e[0] == ' ')
1526                                         break;
1527
1528                                 switch (dot)
1529                                         {
1530                                 case 1:
1531                                         dot = (e[0] == '.') ? 2 : 0;
1532                                         break;
1533                                 case 2:
1534                                         dot = (e[0] == '.') ? 3 : 0;
1535                                         break;
1536                                 case 3:
1537                                         dot = (e[0] == '/') ? -1 : 0;
1538                                         break;
1539                                         }
1540                                 if (dot == 0)
1541                                         dot = (e[0] == '/') ? 1 : 0;
1542                                 }
1543                         dot = (dot == 3) || (dot == -1); /* filename contains ".." component */
1544
1545                         if (*e == '\0')
1546                                 {
1547                                 BIO_puts(io,text);
1548                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1549                                 break;
1550                                 }
1551                         *e='\0';
1552
1553                         if (dot)
1554                                 {
1555                                 BIO_puts(io,text);
1556                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1557                                 break;
1558                                 }
1559
1560                         if (*p == '/')
1561                                 {
1562                                 BIO_puts(io,text);
1563                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1564                                 break;
1565                                 }
1566
1567 #if 0
1568                         /* append if a directory lookup */
1569                         if (e[-1] == '/')
1570                                 strcat(p,"index.html");
1571 #endif
1572
1573                         /* if a directory, do the index thang */
1574                         if (stat(p,&st_buf) < 0)
1575                                 {
1576                                 BIO_puts(io,text);
1577                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1578                                 ERR_print_errors(io);
1579                                 break;
1580                                 }
1581                         if (S_ISDIR(st_buf.st_mode))
1582                                 {
1583 #if 0 /* must check buffer size */
1584                                 strcat(p,"/index.html");
1585 #else
1586                                 BIO_puts(io,text);
1587                                 BIO_printf(io,"'%s' is a directory\r\n",p);
1588                                 break;
1589 #endif
1590                                 }
1591
1592                         if ((file=BIO_new_file(p,"r")) == NULL)
1593                                 {
1594                                 BIO_puts(io,text);
1595                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1596                                 ERR_print_errors(io);
1597                                 break;
1598                                 }
1599
1600                         if (!s_quiet)
1601                                 BIO_printf(bio_err,"FILE:%s\n",p);
1602
1603                         if (www == 2)
1604                                 {
1605                                 i=strlen(p);
1606                                 if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1607                                         ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1608                                         ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1609                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1610                                 else
1611                                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1612                                 }
1613                         /* send the file */
1614                         total_bytes=0;
1615                         for (;;)
1616                                 {
1617                                 i=BIO_read(file,buf,bufsize);
1618                                 if (i <= 0) break;
1619
1620 #ifdef RENEG
1621                                 total_bytes+=i;
1622                                 fprintf(stderr,"%d\n",i);
1623                                 if (total_bytes > 3*1024)
1624                                         {
1625                                         total_bytes=0;
1626                                         fprintf(stderr,"RENEGOTIATE\n");
1627                                         SSL_renegotiate(con);
1628                                         }
1629 #endif
1630
1631                                 for (j=0; j<i; )
1632                                         {
1633 #ifdef RENEG
1634 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1635 #endif
1636                                         k=BIO_write(io,&(buf[j]),i-j);
1637                                         if (k <= 0)
1638                                                 {
1639                                                 if (!BIO_should_retry(io))
1640                                                         goto write_error;
1641                                                 else
1642                                                         {
1643                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1644                                                         }
1645                                                 }
1646                                         else
1647                                                 {
1648                                                 j+=k;
1649                                                 }
1650                                         }
1651                                 }
1652 write_error:
1653                         BIO_free(file);
1654                         break;
1655                         }
1656                 }
1657
1658         for (;;)
1659                 {
1660                 i=(int)BIO_flush(io);
1661                 if (i <= 0)
1662                         {
1663                         if (!BIO_should_retry(io))
1664                                 break;
1665                         }
1666                 else
1667                         break;
1668                 }
1669 end:
1670 #if 1
1671         /* make sure we re-use sessions */
1672         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1673 #else
1674         /* This kills performance */
1675 /*      SSL_shutdown(con); A shutdown gets sent in the
1676  *      BIO_free_all(io) procession */
1677 #endif
1678
1679 err:
1680
1681         if (ret >= 0)
1682                 BIO_printf(bio_s_out,"ACCEPT\n");
1683
1684         if (buf != NULL) OPENSSL_free(buf);
1685         if (io != NULL) BIO_free_all(io);
1686 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1687         return(ret);
1688         }
1689
1690 #ifndef OPENSSL_NO_RSA
1691 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1692         {
1693         static RSA *rsa_tmp=NULL;
1694
1695         if (rsa_tmp == NULL)
1696                 {
1697                 if (!s_quiet)
1698                         {
1699                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1700                         (void)BIO_flush(bio_err);
1701                         }
1702                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1703                 if (!s_quiet)
1704                         {
1705                         BIO_printf(bio_err,"\n");
1706                         (void)BIO_flush(bio_err);
1707                         }
1708                 }
1709         return(rsa_tmp);
1710         }
1711 #endif
1712
1713 #define MAX_SESSION_ID_ATTEMPTS 10
1714 static int generate_session_id(const SSL *ssl, unsigned char *id,
1715                                 unsigned int *id_len)
1716         {
1717         unsigned int count = 0;
1718         do      {
1719                 RAND_pseudo_bytes(id, *id_len);
1720                 /* Prefix the session_id with the required prefix. NB: If our
1721                  * prefix is too long, clip it - but there will be worse effects
1722                  * anyway, eg. the server could only possibly create 1 session
1723                  * ID (ie. the prefix!) so all future session negotiations will
1724                  * fail due to conflicts. */
1725                 memcpy(id, session_id_prefix,
1726                         (strlen(session_id_prefix) < *id_len) ?
1727                         strlen(session_id_prefix) : *id_len);
1728                 }
1729         while(SSL_has_matching_session_id(ssl, id, *id_len) &&
1730                 (++count < MAX_SESSION_ID_ATTEMPTS));
1731         if(count >= MAX_SESSION_ID_ATTEMPTS)
1732                 return 0;
1733         return 1;
1734         }