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 /* With IPv6, it looks like Digital has mixed up the proper order of
  60    recursive header file inclusion, resulting in the compiler complaining
  61    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
  62    is needed to have fileno() declared correctly...  So let's define u_int */
  63 #if defined(VMS) && defined(__DECC) && !defined(__U_INT)
  64 #define __U_INT
  65 typedef unsigned int u_int;
  66 #endif
  67
  68 #include <stdio.h>
  69 #include <stdlib.h>
  70 #include <string.h>
  71 #include <sys/types.h>
  72 #include <sys/stat.h>
  73 #ifdef NO_STDIO
  74 #define APPS_WIN16
  75 #endif
  76 #include <openssl/lhash.h>
  77 #include <openssl/bn.h>
  78 #define USE_SOCKETS
  79 #include "apps.h"
  80 #include <openssl/err.h>
  81 #include <openssl/pem.h>
  82 #include <openssl/x509.h>
  83 #include <openssl/ssl.h>
  84 #include "s_apps.h"
  85
  86 #if (defined(VMS) && __VMS_VER < 70000000)
  87 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
  88 #undef FIONBIO
  89 #endif
  90
  91 #if defined(NO_RSA) && !defined(NO_SSL2)
  92 #define NO_SSL2
  93 #endif
  94
  95 #ifndef NO_RSA
  96 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
  97 #endif
  98 static int sv_body(char *hostname, int s, unsigned char *context);
  99 static int www_body(char *hostname, int s, unsigned char *context);
 100 static void close_accept_socket(void );
 101 static void sv_usage(void);
 102 static int init_ssl_connection(SSL *s);
 103 static void print_stats(BIO *bp,SSL_CTX *ctx);
 104 #ifndef NO_DH
 105 static DH *load_dh_param(void );
 106 static DH *get_dh512(void);
 107 #endif
 108 /* static void s_server_init(void);*/
 109
 110 #ifndef S_ISDIR
 111 # if defined(_S_IFMT) && defined(_S_IFDIR)
 112 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
 113 # else
 114 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
 115 # endif
 116 #endif
 117
 118 #ifndef NO_DH
 119 static unsigned char dh512_p[]={
 120         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 121         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 122         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 123         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 124         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 125         0x47,0x74,0xE8,0x33,
 126         };
 127 static unsigned char dh512_g[]={
 128         0x02,
 129         };
 130
 131 static DH *get_dh512(void)
 132         {
 133         DH *dh=NULL;
 134
 135         if ((dh=DH_new()) == NULL) return(NULL);
 136         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 137         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 138         if ((dh->p == NULL) || (dh->g == NULL))
 139                 return(NULL);
 140         return(dh);
 141         }
 142 #endif
 143
 144 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 145
 146 #undef BUFSIZZ
 147 #define BUFSIZZ 16*1024
 148 static int bufsize=32;
 149 static int accept_socket= -1;
 150
 151 #define TEST_CERT       "server.pem"
 152 #undef PROG
 153 #define PROG            s_server_main
 154
 155 #define DH_PARAM        "server.pem"
 156
 157 extern int verify_depth;
 158
 159 static char *cipher=NULL;
 160 static int s_server_verify=SSL_VERIFY_NONE;
 161 static int s_server_session_id_context = 1; /* anything will do */
 162 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 163 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 164 #ifdef FIONBIO
 165 static int s_nbio=0;
 166 #endif
 167 static int s_nbio_test=0;
 168 static SSL_CTX *ctx=NULL;
 169 static int www=0;
 170
 171 static BIO *bio_s_out=NULL;
 172 static int s_debug=0;
 173 static int s_quiet=0;
 174
 175 #if 0
 176 static void s_server_init(void)
 177         {
 178         cipher=NULL;
 179         s_server_verify=SSL_VERIFY_NONE;
 180         s_dcert_file=NULL;
 181         s_dkey_file=NULL;
 182         s_cert_file=TEST_CERT;
 183         s_key_file=NULL;
 184 #ifdef FIONBIO
 185         s_nbio=0;
 186 #endif
 187         s_nbio_test=0;
 188         ctx=NULL;
 189         www=0;
 190
 191         bio_s_out=NULL;
 192         s_debug=0;
 193         s_quiet=0;
 194         }
 195 #endif
 196
 197 static void sv_usage(void)
 198         {
 199         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 200         BIO_printf(bio_err,"\n");
 201         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 202         BIO_printf(bio_err," -context arg  - set session ID context\n");
 203         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 204         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 205         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 206         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 207         BIO_printf(bio_err," -key arg      - RSA file to use, PEM format assumed, in cert file if\n");
 208         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 209         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 210         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 211 #ifdef FIONBIO
 212         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 213 #endif
 214         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 215         BIO_printf(bio_err," -debug        - Print more output\n");
 216         BIO_printf(bio_err," -state        - Print the SSL states\n");
 217         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 218         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 219         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 220         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 221         BIO_printf(bio_err," -quiet        - No server output\n");
 222         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 223         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 224         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 225         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 226         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 227         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 228         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 229         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatability\n");
 230         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 231         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 232         }
 233
 234 static int local_argc=0;
 235 static char **local_argv;
 236 static int hack=0;
 237
 238 #ifdef CHARSET_EBCDIC
 239 static int ebcdic_new(BIO *bi);
 240 static int ebcdic_free(BIO *a);
 241 static int ebcdic_read(BIO *b, char *out, int outl);
 242 static int ebcdic_write(BIO *b, char *in, int inl);
 243 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr);
 244 static int ebcdic_gets(BIO *bp, char *buf, int size);
 245 static int ebcdic_puts(BIO *bp, char *str);
 246
 247 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 248 static BIO_METHOD methods_ebcdic=
 249         {
 250         BIO_TYPE_EBCDIC_FILTER,
 251         "EBCDIC/ASCII filter",
 252         ebcdic_write,
 253         ebcdic_read,
 254         ebcdic_puts,
 255         ebcdic_gets,
 256         ebcdic_ctrl,
 257         ebcdic_new,
 258         ebcdic_free,
 259         };
 260
 261 typedef struct
 262 {
 263         size_t  alloced;
 264         char    buff[1];
 265 } EBCDIC_OUTBUFF;
 266
 267 BIO_METHOD *BIO_f_ebcdic_filter()
 268 {
 269         return(&methods_ebcdic);
 270 }
 271
 272 static int ebcdic_new(BIO *bi)
 273 {
 274         EBCDIC_OUTBUFF *wbuf;
 275
 276         wbuf = (EBCDIC_OUTBUFF *)Malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 277         wbuf->alloced = 1024;
 278         wbuf->buff[0] = '\0';
 279
 280         bi->ptr=(char *)wbuf;
 281         bi->init=1;
 282         bi->flags=0;
 283         return(1);
 284 }
 285
 286 static int ebcdic_free(BIO *a)
 287 {
 288         if (a == NULL) return(0);
 289         if (a->ptr != NULL)
 290                 Free(a->ptr);
 291         a->ptr=NULL;
 292         a->init=0;
 293         a->flags=0;
 294         return(1);
 295 }
 296
 297 static int ebcdic_read(BIO *b, char *out, int outl)
 298 {
 299         int ret=0;
 300
 301         if (out == NULL || outl == 0) return(0);
 302         if (b->next_bio == NULL) return(0);
 303
 304         ret=BIO_read(b->next_bio,out,outl);
 305         if (ret > 0)
 306                 ascii2ebcdic(out,out,ret);
 307         return(ret);
 308 }
 309
 310 static int ebcdic_write(BIO *b, char *in, int inl)
 311 {
 312         EBCDIC_OUTBUFF *wbuf;
 313         int ret=0;
 314         int num;
 315         unsigned char n;
 316
 317         if ((in == NULL) || (inl <= 0)) return(0);
 318         if (b->next_bio == NULL) return(0);
 319
 320         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 321
 322         if (inl > (num = wbuf->alloced))
 323         {
 324                 num = num + num;  /* double the size */
 325                 if (num < inl)
 326                         num = inl;
 327                 Free((char*)wbuf);
 328                 wbuf=(EBCDIC_OUTBUFF *)Malloc(sizeof(EBCDIC_OUTBUFF) + num);
 329
 330                 wbuf->alloced = num;
 331                 wbuf->buff[0] = '\0';
 332
 333                 b->ptr=(char *)wbuf;
 334         }
 335
 336         ebcdic2ascii(wbuf->buff, in, inl);
 337
 338         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 339
 340         return(ret);
 341 }
 342
 343 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr)
 344 {
 345         long ret;
 346
 347         if (b->next_bio == NULL) return(0);
 348         switch (cmd)
 349         {
 350         case BIO_CTRL_DUP:
 351                 ret=0L;
 352                 break;
 353         default:
 354                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 355                 break;
 356         }
 357         return(ret);
 358 }
 359
 360 static int ebcdic_gets(BIO *bp, char *buf, int size)
 361 {
 362         int i, ret;
 363         if (bp->next_bio == NULL) return(0);
 364 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 365         for (i=0; i<size-1; ++i)
 366         {
 367                 ret = ebcdic_read(bp,&buf[i],1);
 368                 if (ret <= 0)
 369                         break;
 370                 else if (buf[i] == '\n')
 371                 {
 372                         ++i;
 373                         break;
 374                 }
 375         }
 376         if (i < size)
 377                 buf[i] = '\0';
 378         return (ret < 0 && i == 0) ? ret : i;
 379 }
 380
 381 static int ebcdic_puts(BIO *bp, char *str)
 382 {
 383         if (bp->next_bio == NULL) return(0);
 384         return ebcdic_write(bp, str, strlen(str));
 385 }
 386 #endif
 387
 388 int MAIN(int argc, char *argv[])
 389         {
 390         short port=PORT;
 391         char *CApath=NULL,*CAfile=NULL;
 392         char *context = NULL;
 393         int badop=0,bugs=0;
 394         int ret=1;
 395         int off=0;
 396         int no_tmp_rsa=0,nocert=0;
 397         int state=0;
 398         SSL_METHOD *meth=NULL;
 399 #ifndef NO_DH
 400         DH *dh=NULL;
 401 #endif
 402
 403 #if !defined(NO_SSL2) && !defined(NO_SSL3)
 404         meth=SSLv23_server_method();
 405 #elif !defined(NO_SSL3)
 406         meth=SSLv3_server_method();
 407 #elif !defined(NO_SSL2)
 408         meth=SSLv2_server_method();
 409 #endif
 410
 411         local_argc=argc;
 412         local_argv=argv;
 413
 414         apps_startup();
 415         s_quiet=0;
 416         s_debug=0;
 417
 418         if (bio_err == NULL)
 419                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 420
 421         verify_depth=0;
 422 #ifdef FIONBIO
 423         s_nbio=0;
 424 #endif
 425         s_nbio_test=0;
 426
 427         argc--;
 428         argv++;
 429
 430         while (argc >= 1)
 431                 {
 432                 if      ((strcmp(*argv,"-port") == 0) ||
 433                          (strcmp(*argv,"-accept") == 0))
 434                         {
 435                         if (--argc < 1) goto bad;
 436                         if (!extract_port(*(++argv),&port))
 437                                 goto bad;
 438                         }
 439                 else if (strcmp(*argv,"-verify") == 0)
 440                         {
 441                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 442                         if (--argc < 1) goto bad;
 443                         verify_depth=atoi(*(++argv));
 444                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 445                         }
 446                 else if (strcmp(*argv,"-Verify") == 0)
 447                         {
 448                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 449                                 SSL_VERIFY_CLIENT_ONCE;
 450                         if (--argc < 1) goto bad;
 451                         verify_depth=atoi(*(++argv));
 452                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 453                         }
 454                 else if (strcmp(*argv,"-context") == 0)
 455                         {
 456                         if (--argc < 1) goto bad;
 457                         context= *(++argv);
 458                         }
 459                 else if (strcmp(*argv,"-cert") == 0)
 460                         {
 461                         if (--argc < 1) goto bad;
 462                         s_cert_file= *(++argv);
 463                         }
 464                 else if (strcmp(*argv,"-key") == 0)
 465                         {
 466                         if (--argc < 1) goto bad;
 467                         s_key_file= *(++argv);
 468                         }
 469                 else if (strcmp(*argv,"-dcert") == 0)
 470                         {
 471                         if (--argc < 1) goto bad;
 472                         s_dcert_file= *(++argv);
 473                         }
 474                 else if (strcmp(*argv,"-dkey") == 0)
 475                         {
 476                         if (--argc < 1) goto bad;
 477                         s_dkey_file= *(++argv);
 478                         }
 479                 else if (strcmp(*argv,"-nocert") == 0)
 480                         {
 481                         nocert=1;
 482                         }
 483                 else if (strcmp(*argv,"-CApath") == 0)
 484                         {
 485                         if (--argc < 1) goto bad;
 486                         CApath= *(++argv);
 487                         }
 488                 else if (strcmp(*argv,"-cipher") == 0)
 489                         {
 490                         if (--argc < 1) goto bad;
 491                         cipher= *(++argv);
 492                         }
 493                 else if (strcmp(*argv,"-CAfile") == 0)
 494                         {
 495                         if (--argc < 1) goto bad;
 496                         CAfile= *(++argv);
 497                         }
 498 #ifdef FIONBIO
 499                 else if (strcmp(*argv,"-nbio") == 0)
 500                         { s_nbio=1; }
 501 #endif
 502                 else if (strcmp(*argv,"-nbio_test") == 0)
 503                         {
 504 #ifdef FIONBIO
 505                         s_nbio=1;
 506 #endif
 507                         s_nbio_test=1;
 508                         }
 509                 else if (strcmp(*argv,"-debug") == 0)
 510                         { s_debug=1; }
 511                 else if (strcmp(*argv,"-hack") == 0)
 512                         { hack=1; }
 513                 else if (strcmp(*argv,"-state") == 0)
 514                         { state=1; }
 515                 else if (strcmp(*argv,"-quiet") == 0)
 516                         { s_quiet=1; }
 517                 else if (strcmp(*argv,"-bugs") == 0)
 518                         { bugs=1; }
 519                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 520                         { no_tmp_rsa=1; }
 521                 else if (strcmp(*argv,"-www") == 0)
 522                         { www=1; }
 523                 else if (strcmp(*argv,"-WWW") == 0)
 524                         { www=2; }
 525                 else if (strcmp(*argv,"-no_ssl2") == 0)
 526                         { off|=SSL_OP_NO_SSLv2; }
 527                 else if (strcmp(*argv,"-no_ssl3") == 0)
 528                         { off|=SSL_OP_NO_SSLv3; }
 529                 else if (strcmp(*argv,"-no_tls1") == 0)
 530                         { off|=SSL_OP_NO_TLSv1; }
 531 #ifndef NO_SSL2
 532                 else if (strcmp(*argv,"-ssl2") == 0)
 533                         { meth=SSLv2_server_method(); }
 534 #endif
 535 #ifndef NO_SSL3
 536                 else if (strcmp(*argv,"-ssl3") == 0)
 537                         { meth=SSLv3_server_method(); }
 538 #endif
 539 #ifndef NO_TLS1
 540                 else if (strcmp(*argv,"-tls1") == 0)
 541                         { meth=TLSv1_server_method(); }
 542 #endif
 543                 else
 544                         {
 545                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 546                         badop=1;
 547                         break;
 548                         }
 549                 argc--;
 550                 argv++;
 551                 }
 552         if (badop)
 553                 {
 554 bad:
 555                 sv_usage();
 556                 goto end;
 557                 }
 558
 559         if (bio_s_out == NULL)
 560                 {
 561                 if (s_quiet && !s_debug)
 562                         {
 563                         bio_s_out=BIO_new(BIO_s_null());
 564                         }
 565                 else
 566                         {
 567                         if (bio_s_out == NULL)
 568                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 569                         }
 570                 }
 571
 572 #if !defined(NO_RSA) || !defined(NO_DSA)
 573         if (nocert)
 574 #endif
 575                 {
 576                 s_cert_file=NULL;
 577                 s_key_file=NULL;
 578                 s_dcert_file=NULL;
 579                 s_dkey_file=NULL;
 580                 }
 581
 582         SSL_load_error_strings();
 583         SSLeay_add_ssl_algorithms();
 584
 585         ctx=SSL_CTX_new(meth);
 586         if (ctx == NULL)
 587                 {
 588                 ERR_print_errors(bio_err);
 589                 goto end;
 590                 }
 591
 592         SSL_CTX_set_quiet_shutdown(ctx,1);
 593         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
 594         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
 595         SSL_CTX_set_options(ctx,off);
 596         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
 597
 598         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 599
 600         SSL_CTX_sess_set_cache_size(ctx,128);
 601
 602 #if 0
 603         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
 604 #endif
 605
 606 #if 0
 607         if (s_cert_file == NULL)
 608                 {
 609                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
 610                 goto end;
 611                 }
 612 #endif
 613
 614         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 615                 (!SSL_CTX_set_default_verify_paths(ctx)))
 616                 {
 617                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
 618                 ERR_print_errors(bio_err);
 619                 /* goto end; */
 620                 }
 621
 622 #ifndef NO_DH
 623         /* EAY EAY EAY evil hack */
 624         dh=load_dh_param();
 625         if (dh != NULL)
 626                 {
 627                 BIO_printf(bio_s_out,"Setting temp DH parameters\n");
 628                 }
 629         else
 630                 {
 631                 BIO_printf(bio_s_out,"Using default temp DH parameters\n");
 632                 dh=get_dh512();
 633                 }
 634         BIO_flush(bio_s_out);
 635
 636         SSL_CTX_set_tmp_dh(ctx,dh);
 637         DH_free(dh);
 638 #endif
 639
 640         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
 641                 goto end;
 642         if (s_dcert_file != NULL)
 643                 {
 644                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
 645                         goto end;
 646                 }
 647
 648 #ifndef NO_RSA
 649 #if 1
 650         SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
 651 #else
 652         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
 653                 {
 654                 RSA *rsa;
 655
 656                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
 657                 BIO_flush(bio_s_out);
 658
 659                 rsa=RSA_generate_key(512,RSA_F4,NULL);
 660
 661                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
 662                         {
 663                         ERR_print_errors(bio_err);
 664                         goto end;
 665                         }
 666                 RSA_free(rsa);
 667                 BIO_printf(bio_s_out,"\n");
 668                 }
 669 #endif
 670 #endif
 671
 672         if (cipher != NULL)
 673                 SSL_CTX_set_cipher_list(ctx,cipher);
 674         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
 675         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
 676                 sizeof s_server_session_id_context);
 677
 678         SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
 679
 680         BIO_printf(bio_s_out,"ACCEPT\n");
 681         if (www)
 682                 do_server(port,&accept_socket,www_body, context);
 683         else
 684                 do_server(port,&accept_socket,sv_body, context);
 685         print_stats(bio_s_out,ctx);
 686         ret=0;
 687 end:
 688         if (ctx != NULL) SSL_CTX_free(ctx);
 689         if (bio_s_out != NULL)
 690                 {
 691                 BIO_free(bio_s_out);
 692                 bio_s_out=NULL;
 693                 }
 694         EXIT(ret);
 695         }
 696
 697 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
 698         {
 699         BIO_printf(bio,"%4ld items in the session cache\n",
 700                 SSL_CTX_sess_number(ssl_ctx));
 701         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
 702                 SSL_CTX_sess_connect(ssl_ctx));
 703         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
 704                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
 705         BIO_printf(bio,"%4d client connects that finished\n",
 706                 SSL_CTX_sess_connect_good(ssl_ctx));
 707         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
 708                 SSL_CTX_sess_accept(ssl_ctx));
 709         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
 710                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
 711         BIO_printf(bio,"%4d server accepts that finished\n",
 712                 SSL_CTX_sess_accept_good(ssl_ctx));
 713         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
 714         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
 715         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
 716         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
 717         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
 718                 SSL_CTX_sess_cache_full(ssl_ctx),
 719                 SSL_CTX_sess_get_cache_size(ssl_ctx));
 720         }
 721
 722 static int sv_body(char *hostname, int s, unsigned char *context)
 723         {
 724         char *buf=NULL;
 725         fd_set readfds;
 726         int ret=1,width;
 727         int k,i;
 728         unsigned long l;
 729         SSL *con=NULL;
 730         BIO *sbio;
 731
 732         if ((buf=Malloc(bufsize)) == NULL)
 733                 {
 734                 BIO_printf(bio_err,"out of memory\n");
 735                 goto err;
 736                 }
 737 #ifdef FIONBIO
 738         if (s_nbio)
 739                 {
 740                 unsigned long sl=1;
 741
 742                 if (!s_quiet)
 743                         BIO_printf(bio_err,"turning on non blocking io\n");
 744                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
 745                         ERR_print_errors(bio_err);
 746                 }
 747 #endif
 748
 749         if (con == NULL) {
 750                 con=(SSL *)SSL_new(ctx);
 751                 if(context)
 752                       SSL_set_session_id_context(con, context,
 753                                                  strlen((char *)context));
 754         }
 755         SSL_clear(con);
 756
 757         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 758         if (s_nbio_test)
 759                 {
 760                 BIO *test;
 761
 762                 test=BIO_new(BIO_f_nbio_test());
 763                 sbio=BIO_push(test,sbio);
 764                 }
 765         SSL_set_bio(con,sbio,sbio);
 766         SSL_set_accept_state(con);
 767         /* SSL_set_fd(con,s); */
 768
 769         if (s_debug)
 770                 {
 771                 con->debug=1;
 772                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
 773                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
 774                 }
 775
 776         width=s+1;
 777         for (;;)
 778                 {
 779                 FD_ZERO(&readfds);
 780 #ifndef WINDOWS
 781                 FD_SET(fileno(stdin),&readfds);
 782 #endif
 783                 FD_SET(s,&readfds);
 784                 /* Note: under VMS with SOCKETSHR the second parameter is
 785                  * currently of type (int *) whereas under other systems
 786                  * it is (void *) if you don't have a cast it will choke
 787                  * the compiler: if you do have a cast then you can either
 788                  * go for (int *) or (void *).
 789                  */
 790                 i=select(width,(void *)&readfds,NULL,NULL,NULL);
 791                 if (i <= 0) continue;
 792                 if (FD_ISSET(fileno(stdin),&readfds))
 793                         {
 794                         i=read(fileno(stdin),buf,bufsize);
 795                         if (!s_quiet)
 796                                 {
 797                                 if ((i <= 0) || (buf[0] == 'Q'))
 798                                         {
 799                                         BIO_printf(bio_s_out,"DONE\n");
 800                                         SHUTDOWN(s);
 801                                         close_accept_socket();
 802                                         ret= -11;
 803                                         goto err;
 804                                         }
 805                                 if ((i <= 0) || (buf[0] == 'q'))
 806                                         {
 807                                         BIO_printf(bio_s_out,"DONE\n");
 808                                         SHUTDOWN(s);
 809         /*                              close_accept_socket();
 810                                         ret= -11;*/
 811                                         goto err;
 812                                         }
 813                                 if ((buf[0] == 'r') &&
 814                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 815                                         {
 816                                         SSL_renegotiate(con);
 817                                         i=SSL_do_handshake(con);
 818                                         printf("SSL_do_handshake -> %d\n",i);
 819                                         i=0; /*13; */
 820                                         continue;
 821                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
 822                                         }
 823                                 if ((buf[0] == 'R') &&
 824                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 825                                         {
 826                                         SSL_set_verify(con,
 827                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
 828                                         SSL_renegotiate(con);
 829                                         i=SSL_do_handshake(con);
 830                                         printf("SSL_do_handshake -> %d\n",i);
 831                                         i=0; /* 13; */
 832                                         continue;
 833                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
 834                                         }
 835                                 if (buf[0] == 'P')
 836                                         {
 837                                         static char *str="Lets print some clear text\n";
 838                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
 839                                         }
 840                                 if (buf[0] == 'S')
 841                                         {
 842                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
 843                                         }
 844                                 }
 845 #ifdef CHARSET_EBCDIC
 846                         ebcdic2ascii(buf,buf,i);
 847 #endif
 848                         l=k=0;
 849                         for (;;)
 850                                 {
 851                                 /* should do a select for the write */
 852 #ifdef RENEG
 853 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
 854 #endif
 855                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
 856                                 switch (SSL_get_error(con,k))
 857                                         {
 858                                 case SSL_ERROR_NONE:
 859                                         break;
 860                                 case SSL_ERROR_WANT_WRITE:
 861                                 case SSL_ERROR_WANT_READ:
 862                                 case SSL_ERROR_WANT_X509_LOOKUP:
 863                                         BIO_printf(bio_s_out,"Write BLOCK\n");
 864                                         break;
 865                                 case SSL_ERROR_SYSCALL:
 866                                 case SSL_ERROR_SSL:
 867                                         BIO_printf(bio_s_out,"ERROR\n");
 868                                         ERR_print_errors(bio_err);
 869                                         ret=1;
 870                                         goto err;
 871                                         /* break; */
 872                                 case SSL_ERROR_ZERO_RETURN:
 873                                         BIO_printf(bio_s_out,"DONE\n");
 874                                         ret=1;
 875                                         goto err;
 876                                         }
 877                                 l+=k;
 878                                 i-=k;
 879                                 if (i <= 0) break;
 880                                 }
 881                         }
 882                 if (FD_ISSET(s,&readfds))
 883                         {
 884                         if (!SSL_is_init_finished(con))
 885                                 {
 886                                 i=init_ssl_connection(con);
 887
 888                                 if (i < 0)
 889                                         {
 890                                         ret=0;
 891                                         goto err;
 892                                         }
 893                                 else if (i == 0)
 894                                         {
 895                                         ret=1;
 896                                         goto err;
 897                                         }
 898                                 }
 899                         else
 900                                 {
 901 again:
 902                                 i=SSL_read(con,(char *)buf,bufsize);
 903                                 switch (SSL_get_error(con,i))
 904                                         {
 905                                 case SSL_ERROR_NONE:
 906 #ifdef CHARSET_EBCDIC
 907                                         ascii2ebcdic(buf,buf,i);
 908 #endif
 909                                         write(fileno(stdout),buf,
 910                                                 (unsigned int)i);
 911                                         if (SSL_pending(con)) goto again;
 912                                         break;
 913                                 case SSL_ERROR_WANT_WRITE:
 914                                 case SSL_ERROR_WANT_READ:
 915                                 case SSL_ERROR_WANT_X509_LOOKUP:
 916                                         BIO_printf(bio_s_out,"Read BLOCK\n");
 917                                         break;
 918                                 case SSL_ERROR_SYSCALL:
 919                                 case SSL_ERROR_SSL:
 920                                         BIO_printf(bio_s_out,"ERROR\n");
 921                                         ERR_print_errors(bio_err);
 922                                         ret=1;
 923                                         goto err;
 924                                 case SSL_ERROR_ZERO_RETURN:
 925                                         BIO_printf(bio_s_out,"DONE\n");
 926                                         ret=1;
 927                                         goto err;
 928                                         }
 929                                 }
 930                         }
 931                 }
 932 err:
 933         BIO_printf(bio_s_out,"shutting down SSL\n");
 934 #if 1
 935         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
 936 #else
 937         SSL_shutdown(con);
 938 #endif
 939         if (con != NULL) SSL_free(con);
 940         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
 941         if (buf != NULL)
 942                 {
 943                 memset(buf,0,bufsize);
 944                 Free(buf);
 945                 }
 946         if (ret >= 0)
 947                 BIO_printf(bio_s_out,"ACCEPT\n");
 948         return(ret);
 949         }
 950
 951 static void close_accept_socket(void)
 952         {
 953         BIO_printf(bio_err,"shutdown accept socket\n");
 954         if (accept_socket >= 0)
 955                 {
 956                 SHUTDOWN2(accept_socket);
 957                 }
 958         }
 959
 960 static int init_ssl_connection(SSL *con)
 961         {
 962         int i;
 963         const char *str;
 964         X509 *peer;
 965         long verify_error;
 966         MS_STATIC char buf[BUFSIZ];
 967
 968         if ((i=SSL_accept(con)) <= 0)
 969                 {
 970                 if (BIO_sock_should_retry(i))
 971                         {
 972                         BIO_printf(bio_s_out,"DELAY\n");
 973                         return(1);
 974                         }
 975
 976                 BIO_printf(bio_err,"ERROR\n");
 977                 verify_error=SSL_get_verify_result(con);
 978                 if (verify_error != X509_V_OK)
 979                         {
 980                         BIO_printf(bio_err,"verify error:%s\n",
 981                                 X509_verify_cert_error_string(verify_error));
 982                         }
 983                 else
 984                         ERR_print_errors(bio_err);
 985                 return(0);
 986                 }
 987
 988         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
 989
 990         peer=SSL_get_peer_certificate(con);
 991         if (peer != NULL)
 992                 {
 993                 BIO_printf(bio_s_out,"Client certificate\n");
 994                 PEM_write_bio_X509(bio_s_out,peer);
 995                 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
 996                 BIO_printf(bio_s_out,"subject=%s\n",buf);
 997                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
 998                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
 999                 X509_free(peer);
1000                 }
1001
1002         if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
1003                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1004         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1005         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1006         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1007         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1008                 TLS1_FLAGS_TLS_PADDING_BUG)
1009                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1010
1011         return(1);
1012         }
1013
1014 #ifndef NO_DH
1015 static DH *load_dh_param(void)
1016         {
1017         DH *ret=NULL;
1018         BIO *bio;
1019
1020         if ((bio=BIO_new_file(DH_PARAM,"r")) == NULL)
1021                 goto err;
1022         ret=PEM_read_bio_DHparams(bio,NULL,NULL);
1023 err:
1024         if (bio != NULL) BIO_free(bio);
1025         return(ret);
1026         }
1027 #endif
1028
1029 #if 0
1030 static int load_CA(SSL_CTX *ctx, char *file)
1031         {
1032         FILE *in;
1033         X509 *x=NULL;
1034
1035         if ((in=fopen(file,"r")) == NULL)
1036                 return(0);
1037
1038         for (;;)
1039                 {
1040                 if (PEM_read_X509(in,&x,NULL) == NULL)
1041                         break;
1042                 SSL_CTX_add_client_CA(ctx,x);
1043                 }
1044         if (x != NULL) X509_free(x);
1045         fclose(in);
1046         return(1);
1047         }
1048 #endif
1049
1050 static int www_body(char *hostname, int s, unsigned char *context)
1051         {
1052         char *buf=NULL;
1053         int ret=1;
1054         int i,j,k,blank,dot;
1055         struct stat st_buf;
1056         SSL *con;
1057         SSL_CIPHER *c;
1058         BIO *io,*ssl_bio,*sbio;
1059         long total_bytes;
1060
1061         buf=Malloc(bufsize);
1062         if (buf == NULL) return(0);
1063         io=BIO_new(BIO_f_buffer());
1064         ssl_bio=BIO_new(BIO_f_ssl());
1065         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1066
1067 #ifdef FIONBIO
1068         if (s_nbio)
1069                 {
1070                 unsigned long sl=1;
1071
1072                 if (!s_quiet)
1073                         BIO_printf(bio_err,"turning on non blocking io\n");
1074                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1075                         ERR_print_errors(bio_err);
1076                 }
1077 #endif
1078
1079         /* lets make the output buffer a reasonable size */
1080         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1081
1082         if ((con=(SSL *)SSL_new(ctx)) == NULL) goto err;
1083         if(context) SSL_set_session_id_context(con, context,
1084                                                strlen((char *)context));
1085
1086         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1087         if (s_nbio_test)
1088                 {
1089                 BIO *test;
1090
1091                 test=BIO_new(BIO_f_nbio_test());
1092                 sbio=BIO_push(test,sbio);
1093                 }
1094         SSL_set_bio(con,sbio,sbio);
1095         SSL_set_accept_state(con);
1096
1097         /* SSL_set_fd(con,s); */
1098         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1099         BIO_push(io,ssl_bio);
1100 #ifdef CHARSET_EBCDIC
1101         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1102 #endif
1103
1104         if (s_debug)
1105                 {
1106                 con->debug=1;
1107                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1108                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1109                 }
1110
1111         blank=0;
1112         for (;;)
1113                 {
1114                 if (hack)
1115                         {
1116                         i=SSL_accept(con);
1117
1118                         switch (SSL_get_error(con,i))
1119                                 {
1120                         case SSL_ERROR_NONE:
1121                                 break;
1122                         case SSL_ERROR_WANT_WRITE:
1123                         case SSL_ERROR_WANT_READ:
1124                         case SSL_ERROR_WANT_X509_LOOKUP:
1125                                 continue;
1126                         case SSL_ERROR_SYSCALL:
1127                         case SSL_ERROR_SSL:
1128                         case SSL_ERROR_ZERO_RETURN:
1129                                 ret=1;
1130                                 goto err;
1131                                 /* break; */
1132                                 }
1133
1134                         SSL_renegotiate(con);
1135                         SSL_write(con,NULL,0);
1136                         }
1137
1138                 i=BIO_gets(io,buf,bufsize-1);
1139                 if (i < 0) /* error */
1140                         {
1141                         if (!BIO_should_retry(io))
1142                                 {
1143                                 if (!s_quiet)
1144                                         ERR_print_errors(bio_err);
1145                                 goto err;
1146                                 }
1147                         else
1148                                 {
1149                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1150 #ifndef MSDOS
1151                                 sleep(1);
1152 #endif
1153                                 continue;
1154                                 }
1155                         }
1156                 else if (i == 0) /* end of input */
1157                         {
1158                         ret=1;
1159                         goto end;
1160                         }
1161
1162                 /* else we have data */
1163                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1164                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1165                         {
1166                         char *p;
1167                         X509 *peer;
1168                         STACK_OF(SSL_CIPHER) *sk;
1169                         static char *space="                          ";
1170
1171                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1172                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1173                         BIO_puts(io,"<pre>\n");
1174 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1175                         BIO_puts(io,"\n");
1176                         for (i=0; i<local_argc; i++)
1177                                 {
1178                                 BIO_puts(io,local_argv[i]);
1179                                 BIO_write(io," ",1);
1180                                 }
1181                         BIO_puts(io,"\n");
1182
1183                         /* The following is evil and should not really
1184                          * be done */
1185                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1186                         sk=SSL_get_ciphers(con);
1187                         j=sk_SSL_CIPHER_num(sk);
1188                         for (i=0; i<j; i++)
1189                                 {
1190                                 c=sk_SSL_CIPHER_value(sk,i);
1191                                 BIO_printf(io,"%-11s:%-25s",
1192                                         SSL_CIPHER_get_version(c),
1193                                         SSL_CIPHER_get_name(c));
1194                                 if ((((i+1)%2) == 0) && (i+1 != j))
1195                                         BIO_puts(io,"\n");
1196                                 }
1197                         BIO_puts(io,"\n");
1198                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1199                         if (p != NULL)
1200                                 {
1201                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1202                                 j=i=0;
1203                                 while (*p)
1204                                         {
1205                                         if (*p == ':')
1206                                                 {
1207                                                 BIO_write(io,space,26-j);
1208                                                 i++;
1209                                                 j=0;
1210                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1211                                                 }
1212                                         else
1213                                                 {
1214                                                 BIO_write(io,p,1);
1215                                                 j++;
1216                                                 }
1217                                         p++;
1218                                         }
1219                                 BIO_puts(io,"\n");
1220                                 }
1221                         BIO_printf(io,((con->hit)
1222                                 ?"---\nReused, "
1223                                 :"---\nNew, "));
1224                         c=SSL_get_current_cipher(con);
1225                         BIO_printf(io,"%s, Cipher is %s\n",
1226                                 SSL_CIPHER_get_version(c),
1227                                 SSL_CIPHER_get_name(c));
1228                         SSL_SESSION_print(io,SSL_get_session(con));
1229                         BIO_printf(io,"---\n");
1230                         print_stats(io,SSL_get_SSL_CTX(con));
1231                         BIO_printf(io,"---\n");
1232                         peer=SSL_get_peer_certificate(con);
1233                         if (peer != NULL)
1234                                 {
1235                                 BIO_printf(io,"Client certificate\n");
1236                                 X509_print(io,peer);
1237                                 PEM_write_bio_X509(io,peer);
1238                                 }
1239                         else
1240                                 BIO_puts(io,"no client certificate available\n");
1241                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1242                         break;
1243                         }
1244                 else if ((www == 2) && (strncmp("GET /",buf,5) == 0))
1245                         {
1246                         BIO *file;
1247                         char *p,*e;
1248                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1249
1250                         /* skip the '/' */
1251                         p= &(buf[5]);
1252                         dot=0;
1253                         for (e=p; *e != '\0'; e++)
1254                                 {
1255                                 if (e[0] == ' ') break;
1256                                 if (    (e[0] == '.') &&
1257                                         (strncmp(&(e[-1]),"/../",4) == 0))
1258                                         dot=1;
1259                                 }
1260
1261
1262                         if (*e == '\0')
1263                                 {
1264                                 BIO_puts(io,text);
1265                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1266                                 break;
1267                                 }
1268                         *e='\0';
1269
1270                         if (dot)
1271                                 {
1272                                 BIO_puts(io,text);
1273                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1274                                 break;
1275                                 }
1276
1277                         if (*p == '/')
1278                                 {
1279                                 BIO_puts(io,text);
1280                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1281                                 break;
1282                                 }
1283
1284                         /* append if a directory lookup */
1285                         if (e[-1] == '/')
1286                                 strcat(p,"index.html");
1287
1288                         /* if a directory, do the index thang */
1289                         if (stat(p,&st_buf) < 0)
1290                                 {
1291                                 BIO_puts(io,text);
1292                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1293                                 ERR_print_errors(io);
1294                                 break;
1295                                 }
1296                         if (S_ISDIR(st_buf.st_mode))
1297                                 {
1298                                 strcat(p,"/index.html");
1299                                 }
1300
1301                         if ((file=BIO_new_file(p,"r")) == NULL)
1302                                 {
1303                                 BIO_puts(io,text);
1304                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1305                                 ERR_print_errors(io);
1306                                 break;
1307                                 }
1308
1309                         if (!s_quiet)
1310                                 BIO_printf(bio_err,"FILE:%s\n",p);
1311
1312                         i=strlen(p);
1313                         if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1314                                 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1315                                 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1316                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1317                         else
1318                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1319                         /* send the file */
1320                         total_bytes=0;
1321                         for (;;)
1322                                 {
1323                                 i=BIO_read(file,buf,bufsize);
1324                                 if (i <= 0) break;
1325
1326 #ifdef RENEG
1327                                 total_bytes+=i;
1328                                 fprintf(stderr,"%d\n",i);
1329                                 if (total_bytes > 3*1024)
1330                                         {
1331                                         total_bytes=0;
1332                                         fprintf(stderr,"RENEGOTIATE\n");
1333                                         SSL_renegotiate(con);
1334                                         }
1335 #endif
1336
1337                                 for (j=0; j<i; )
1338                                         {
1339 #ifdef RENEG
1340 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1341 #endif
1342                                         k=BIO_write(io,&(buf[j]),i-j);
1343                                         if (k <= 0)
1344                                                 {
1345                                                 if (!BIO_should_retry(io))
1346                                                         goto write_error;
1347                                                 else
1348                                                         {
1349                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1350                                                         }
1351                                                 }
1352                                         else
1353                                                 {
1354                                                 j+=k;
1355                                                 }
1356                                         }
1357                                 }
1358 write_error:
1359                         BIO_free(file);
1360                         break;
1361                         }
1362                 }
1363
1364         for (;;)
1365                 {
1366                 i=(int)BIO_flush(io);
1367                 if (i <= 0)
1368                         {
1369                         if (!BIO_should_retry(io))
1370                                 break;
1371                         }
1372                 else
1373                         break;
1374                 }
1375 end:
1376 #if 1
1377         /* make sure we re-use sessions */
1378         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1379 #else
1380         /* This kills performace */
1381 /*      SSL_shutdown(con); A shutdown gets sent in the
1382  *      BIO_free_all(io) procession */
1383 #endif
1384
1385 err:
1386
1387         if (ret >= 0)
1388                 BIO_printf(bio_s_out,"ACCEPT\n");
1389
1390         if (buf != NULL) Free(buf);
1391         if (io != NULL) BIO_free_all(io);
1392 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1393         return(ret);
1394         }
1395
1396 #ifndef NO_RSA
1397 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1398         {
1399         static RSA *rsa_tmp=NULL;
1400
1401         if (rsa_tmp == NULL)
1402                 {
1403                 if (!s_quiet)
1404                         {
1405                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1406                         BIO_flush(bio_err);
1407                         }
1408                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1409                 if (!s_quiet)
1410                         {
1411                         BIO_printf(bio_err,"\n");
1412                         BIO_flush(bio_err);
1413                         }
1414                 }
1415         return(rsa_tmp);
1416         }
1417 #endif