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 #include <assert.h>
  60 #include <stdio.h>
  61 #include <stdlib.h>
  62 #include <string.h>
  63 #include <sys/types.h>
  64 #include <sys/stat.h>
  65 #ifdef NO_STDIO
  66 #define APPS_WIN16
  67 #endif
  68
  69 /* With IPv6, it looks like Digital has mixed up the proper order of
  70    recursive header file inclusion, resulting in the compiler complaining
  71    that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which
  72    is needed to have fileno() declared correctly...  So let's define u_int */
  73 #if defined(VMS) && defined(__DECC) && !defined(__U_INT)
  74 #define __U_INT
  75 typedef unsigned int u_int;
  76 #endif
  77
  78 #include <openssl/lhash.h>
  79 #include <openssl/bn.h>
  80 #define USE_SOCKETS
  81 #include "apps.h"
  82 #include <openssl/err.h>
  83 #include <openssl/pem.h>
  84 #include <openssl/x509.h>
  85 #include <openssl/ssl.h>
  86 #include "s_apps.h"
  87
  88 #ifdef WINDOWS
  89 #include <conio.h>
  90 #endif
  91
  92 #if (defined(VMS) && __VMS_VER < 70000000)
  93 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
  94 #undef FIONBIO
  95 #endif
  96
  97 #ifndef NO_RSA
  98 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
  99 #endif
 100 static int sv_body(char *hostname, int s, unsigned char *context);
 101 static int www_body(char *hostname, int s, unsigned char *context);
 102 static void close_accept_socket(void );
 103 static void sv_usage(void);
 104 static int init_ssl_connection(SSL *s);
 105 static void print_stats(BIO *bp,SSL_CTX *ctx);
 106 #ifndef NO_DH
 107 static DH *load_dh_param(char *dhfile);
 108 static DH *get_dh512(void);
 109 #endif
 110 #ifdef MONOLITH
 111 static void s_server_init(void);
 112 #endif
 113
 114 #ifndef S_ISDIR
 115 # if defined(_S_IFMT) && defined(_S_IFDIR)
 116 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
 117 # else
 118 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
 119 # endif
 120 #endif
 121
 122 #ifndef NO_DH
 123 static unsigned char dh512_p[]={
 124         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 125         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 126         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 127         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 128         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 129         0x47,0x74,0xE8,0x33,
 130         };
 131 static unsigned char dh512_g[]={
 132         0x02,
 133         };
 134
 135 static DH *get_dh512(void)
 136         {
 137         DH *dh=NULL;
 138
 139         if ((dh=DH_new()) == NULL) return(NULL);
 140         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 141         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 142         if ((dh->p == NULL) || (dh->g == NULL))
 143                 return(NULL);
 144         return(dh);
 145         }
 146 #endif
 147
 148 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 149
 150 #undef BUFSIZZ
 151 #define BUFSIZZ 16*1024
 152 static int bufsize=BUFSIZZ;
 153 static int accept_socket= -1;
 154
 155 #define TEST_CERT       "server.pem"
 156 #undef PROG
 157 #define PROG            s_server_main
 158
 159 extern int verify_depth;
 160
 161 static char *cipher=NULL;
 162 static int s_server_verify=SSL_VERIFY_NONE;
 163 static int s_server_session_id_context = 1; /* anything will do */
 164 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 165 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 166 #ifdef FIONBIO
 167 static int s_nbio=0;
 168 #endif
 169 static int s_nbio_test=0;
 170 int s_crlf=0;
 171 static SSL_CTX *ctx=NULL;
 172 static int www=0;
 173
 174 static BIO *bio_s_out=NULL;
 175 static int s_debug=0;
 176 static int s_quiet=0;
 177
 178 static int hack=0;
 179
 180 #ifdef MONOLITH
 181 static void s_server_init(void)
 182         {
 183         accept_socket=-1;
 184         cipher=NULL;
 185         s_server_verify=SSL_VERIFY_NONE;
 186         s_dcert_file=NULL;
 187         s_dkey_file=NULL;
 188         s_cert_file=TEST_CERT;
 189         s_key_file=NULL;
 190 #ifdef FIONBIO
 191         s_nbio=0;
 192 #endif
 193         s_nbio_test=0;
 194         ctx=NULL;
 195         www=0;
 196
 197         bio_s_out=NULL;
 198         s_debug=0;
 199         s_quiet=0;
 200         hack=0;
 201         }
 202 #endif
 203
 204 static void sv_usage(void)
 205         {
 206         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 207         BIO_printf(bio_err,"\n");
 208         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 209         BIO_printf(bio_err," -context arg  - set session ID context\n");
 210         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 211         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 212         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 213         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 214         BIO_printf(bio_err," -key arg      - Private Key file to use, PEM format assumed, in cert file if\n");
 215         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 216         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 217         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 218         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 219         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 220 #ifdef FIONBIO
 221         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 222 #endif
 223         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 224         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 225         BIO_printf(bio_err," -debug        - Print more output\n");
 226         BIO_printf(bio_err," -state        - Print the SSL states\n");
 227         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 228         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 229         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 230         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 231         BIO_printf(bio_err," -quiet        - No server output\n");
 232         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 233         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 234         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 235         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 236         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 237         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 238         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 239 #ifndef NO_DH
 240         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 241 #endif
 242         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 243         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 244         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 245         }
 246
 247 static int local_argc=0;
 248 static char **local_argv;
 249
 250 #ifdef CHARSET_EBCDIC
 251 static int ebcdic_new(BIO *bi);
 252 static int ebcdic_free(BIO *a);
 253 static int ebcdic_read(BIO *b, char *out, int outl);
 254 static int ebcdic_write(BIO *b, char *in, int inl);
 255 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr);
 256 static int ebcdic_gets(BIO *bp, char *buf, int size);
 257 static int ebcdic_puts(BIO *bp, char *str);
 258
 259 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 260 static BIO_METHOD methods_ebcdic=
 261         {
 262         BIO_TYPE_EBCDIC_FILTER,
 263         "EBCDIC/ASCII filter",
 264         ebcdic_write,
 265         ebcdic_read,
 266         ebcdic_puts,
 267         ebcdic_gets,
 268         ebcdic_ctrl,
 269         ebcdic_new,
 270         ebcdic_free,
 271         };
 272
 273 typedef struct
 274 {
 275         size_t  alloced;
 276         char    buff[1];
 277 } EBCDIC_OUTBUFF;
 278
 279 BIO_METHOD *BIO_f_ebcdic_filter()
 280 {
 281         return(&methods_ebcdic);
 282 }
 283
 284 static int ebcdic_new(BIO *bi)
 285 {
 286         EBCDIC_OUTBUFF *wbuf;
 287
 288         wbuf = (EBCDIC_OUTBUFF *)Malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 289         wbuf->alloced = 1024;
 290         wbuf->buff[0] = '\0';
 291
 292         bi->ptr=(char *)wbuf;
 293         bi->init=1;
 294         bi->flags=0;
 295         return(1);
 296 }
 297
 298 static int ebcdic_free(BIO *a)
 299 {
 300         if (a == NULL) return(0);
 301         if (a->ptr != NULL)
 302                 Free(a->ptr);
 303         a->ptr=NULL;
 304         a->init=0;
 305         a->flags=0;
 306         return(1);
 307 }
 308
 309 static int ebcdic_read(BIO *b, char *out, int outl)
 310 {
 311         int ret=0;
 312
 313         if (out == NULL || outl == 0) return(0);
 314         if (b->next_bio == NULL) return(0);
 315
 316         ret=BIO_read(b->next_bio,out,outl);
 317         if (ret > 0)
 318                 ascii2ebcdic(out,out,ret);
 319         return(ret);
 320 }
 321
 322 static int ebcdic_write(BIO *b, char *in, int inl)
 323 {
 324         EBCDIC_OUTBUFF *wbuf;
 325         int ret=0;
 326         int num;
 327         unsigned char n;
 328
 329         if ((in == NULL) || (inl <= 0)) return(0);
 330         if (b->next_bio == NULL) return(0);
 331
 332         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 333
 334         if (inl > (num = wbuf->alloced))
 335         {
 336                 num = num + num;  /* double the size */
 337                 if (num < inl)
 338                         num = inl;
 339                 Free(wbuf);
 340                 wbuf=(EBCDIC_OUTBUFF *)Malloc(sizeof(EBCDIC_OUTBUFF) + num);
 341
 342                 wbuf->alloced = num;
 343                 wbuf->buff[0] = '\0';
 344
 345                 b->ptr=(char *)wbuf;
 346         }
 347
 348         ebcdic2ascii(wbuf->buff, in, inl);
 349
 350         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 351
 352         return(ret);
 353 }
 354
 355 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr)
 356 {
 357         long ret;
 358
 359         if (b->next_bio == NULL) return(0);
 360         switch (cmd)
 361         {
 362         case BIO_CTRL_DUP:
 363                 ret=0L;
 364                 break;
 365         default:
 366                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 367                 break;
 368         }
 369         return(ret);
 370 }
 371
 372 static int ebcdic_gets(BIO *bp, char *buf, int size)
 373 {
 374         int i, ret;
 375         if (bp->next_bio == NULL) return(0);
 376 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 377         for (i=0; i<size-1; ++i)
 378         {
 379                 ret = ebcdic_read(bp,&buf[i],1);
 380                 if (ret <= 0)
 381                         break;
 382                 else if (buf[i] == '\n')
 383                 {
 384                         ++i;
 385                         break;
 386                 }
 387         }
 388         if (i < size)
 389                 buf[i] = '\0';
 390         return (ret < 0 && i == 0) ? ret : i;
 391 }
 392
 393 static int ebcdic_puts(BIO *bp, char *str)
 394 {
 395         if (bp->next_bio == NULL) return(0);
 396         return ebcdic_write(bp, str, strlen(str));
 397 }
 398 #endif
 399
 400 int MAIN(int, char **);
 401
 402 int MAIN(int argc, char *argv[])
 403         {
 404         short port=PORT;
 405         char *CApath=NULL,*CAfile=NULL;
 406         char *context = NULL;
 407         char *dhfile = NULL;
 408         int badop=0,bugs=0;
 409         int ret=1;
 410         int off=0;
 411         int no_tmp_rsa=0,no_dhe=0,nocert=0;
 412         int state=0;
 413         SSL_METHOD *meth=NULL;
 414 #ifndef NO_DH
 415         DH *dh=NULL;
 416 #endif
 417
 418 #if !defined(NO_SSL2) && !defined(NO_SSL3)
 419         meth=SSLv23_server_method();
 420 #elif !defined(NO_SSL3)
 421         meth=SSLv3_server_method();
 422 #elif !defined(NO_SSL2)
 423         meth=SSLv2_server_method();
 424 #endif
 425
 426         local_argc=argc;
 427         local_argv=argv;
 428
 429         apps_startup();
 430 #ifdef MONOLITH
 431         s_server_init();
 432 #endif
 433
 434         if (bio_err == NULL)
 435                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 436
 437         verify_depth=0;
 438 #ifdef FIONBIO
 439         s_nbio=0;
 440 #endif
 441         s_nbio_test=0;
 442
 443         argc--;
 444         argv++;
 445
 446         while (argc >= 1)
 447                 {
 448                 if      ((strcmp(*argv,"-port") == 0) ||
 449                          (strcmp(*argv,"-accept") == 0))
 450                         {
 451                         if (--argc < 1) goto bad;
 452                         if (!extract_port(*(++argv),&port))
 453                                 goto bad;
 454                         }
 455                 else if (strcmp(*argv,"-verify") == 0)
 456                         {
 457                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 458                         if (--argc < 1) goto bad;
 459                         verify_depth=atoi(*(++argv));
 460                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 461                         }
 462                 else if (strcmp(*argv,"-Verify") == 0)
 463                         {
 464                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 465                                 SSL_VERIFY_CLIENT_ONCE;
 466                         if (--argc < 1) goto bad;
 467                         verify_depth=atoi(*(++argv));
 468                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 469                         }
 470                 else if (strcmp(*argv,"-context") == 0)
 471                         {
 472                         if (--argc < 1) goto bad;
 473                         context= *(++argv);
 474                         }
 475                 else if (strcmp(*argv,"-cert") == 0)
 476                         {
 477                         if (--argc < 1) goto bad;
 478                         s_cert_file= *(++argv);
 479                         }
 480                 else if (strcmp(*argv,"-key") == 0)
 481                         {
 482                         if (--argc < 1) goto bad;
 483                         s_key_file= *(++argv);
 484                         }
 485                 else if (strcmp(*argv,"-dhparam") == 0)
 486                         {
 487                         if (--argc < 1) goto bad;
 488                         dhfile = *(++argv);
 489                         }
 490                 else if (strcmp(*argv,"-dcert") == 0)
 491                         {
 492                         if (--argc < 1) goto bad;
 493                         s_dcert_file= *(++argv);
 494                         }
 495                 else if (strcmp(*argv,"-dkey") == 0)
 496                         {
 497                         if (--argc < 1) goto bad;
 498                         s_dkey_file= *(++argv);
 499                         }
 500                 else if (strcmp(*argv,"-nocert") == 0)
 501                         {
 502                         nocert=1;
 503                         }
 504                 else if (strcmp(*argv,"-CApath") == 0)
 505                         {
 506                         if (--argc < 1) goto bad;
 507                         CApath= *(++argv);
 508                         }
 509                 else if (strcmp(*argv,"-cipher") == 0)
 510                         {
 511                         if (--argc < 1) goto bad;
 512                         cipher= *(++argv);
 513                         }
 514                 else if (strcmp(*argv,"-CAfile") == 0)
 515                         {
 516                         if (--argc < 1) goto bad;
 517                         CAfile= *(++argv);
 518                         }
 519 #ifdef FIONBIO
 520                 else if (strcmp(*argv,"-nbio") == 0)
 521                         { s_nbio=1; }
 522 #endif
 523                 else if (strcmp(*argv,"-nbio_test") == 0)
 524                         {
 525 #ifdef FIONBIO
 526                         s_nbio=1;
 527 #endif
 528                         s_nbio_test=1;
 529                         }
 530                 else if (strcmp(*argv,"-debug") == 0)
 531                         { s_debug=1; }
 532                 else if (strcmp(*argv,"-hack") == 0)
 533                         { hack=1; }
 534                 else if (strcmp(*argv,"-state") == 0)
 535                         { state=1; }
 536                 else if (strcmp(*argv,"-crlf") == 0)
 537                         { s_crlf=1; }
 538                 else if (strcmp(*argv,"-quiet") == 0)
 539                         { s_quiet=1; }
 540                 else if (strcmp(*argv,"-bugs") == 0)
 541                         { bugs=1; }
 542                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 543                         { no_tmp_rsa=1; }
 544                 else if (strcmp(*argv,"-no_dhe") == 0)
 545                         { no_dhe=1; }
 546                 else if (strcmp(*argv,"-www") == 0)
 547                         { www=1; }
 548                 else if (strcmp(*argv,"-WWW") == 0)
 549                         { www=2; }
 550                 else if (strcmp(*argv,"-no_ssl2") == 0)
 551                         { off|=SSL_OP_NO_SSLv2; }
 552                 else if (strcmp(*argv,"-no_ssl3") == 0)
 553                         { off|=SSL_OP_NO_SSLv3; }
 554                 else if (strcmp(*argv,"-no_tls1") == 0)
 555                         { off|=SSL_OP_NO_TLSv1; }
 556 #ifndef NO_SSL2
 557                 else if (strcmp(*argv,"-ssl2") == 0)
 558                         { meth=SSLv2_server_method(); }
 559 #endif
 560 #ifndef NO_SSL3
 561                 else if (strcmp(*argv,"-ssl3") == 0)
 562                         { meth=SSLv3_server_method(); }
 563 #endif
 564 #ifndef NO_TLS1
 565                 else if (strcmp(*argv,"-tls1") == 0)
 566                         { meth=TLSv1_server_method(); }
 567 #endif
 568                 else
 569                         {
 570                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 571                         badop=1;
 572                         break;
 573                         }
 574                 argc--;
 575                 argv++;
 576                 }
 577         if (badop)
 578                 {
 579 bad:
 580                 sv_usage();
 581                 goto end;
 582                 }
 583
 584         app_RAND_load_file(NULL, bio_err, 0);
 585
 586         if (bio_s_out == NULL)
 587                 {
 588                 if (s_quiet && !s_debug)
 589                         {
 590                         bio_s_out=BIO_new(BIO_s_null());
 591                         }
 592                 else
 593                         {
 594                         if (bio_s_out == NULL)
 595                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 596                         }
 597                 }
 598
 599 #if !defined(NO_RSA) || !defined(NO_DSA)
 600         if (nocert)
 601 #endif
 602                 {
 603                 s_cert_file=NULL;
 604                 s_key_file=NULL;
 605                 s_dcert_file=NULL;
 606                 s_dkey_file=NULL;
 607                 }
 608
 609         SSL_load_error_strings();
 610         OpenSSL_add_ssl_algorithms();
 611
 612         ctx=SSL_CTX_new(meth);
 613         if (ctx == NULL)
 614                 {
 615                 ERR_print_errors(bio_err);
 616                 goto end;
 617                 }
 618
 619         SSL_CTX_set_quiet_shutdown(ctx,1);
 620         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
 621         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
 622         SSL_CTX_set_options(ctx,off);
 623         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
 624
 625         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 626
 627         SSL_CTX_sess_set_cache_size(ctx,128);
 628
 629 #if 0
 630         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
 631 #endif
 632
 633 #if 0
 634         if (s_cert_file == NULL)
 635                 {
 636                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
 637                 goto end;
 638                 }
 639 #endif
 640
 641         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 642                 (!SSL_CTX_set_default_verify_paths(ctx)))
 643                 {
 644                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
 645                 ERR_print_errors(bio_err);
 646                 /* goto end; */
 647                 }
 648
 649 #ifndef NO_DH
 650         if (!no_dhe)
 651                 {
 652                 dh=load_dh_param(dhfile ? dhfile : s_cert_file);
 653                 if (dh != NULL)
 654                         {
 655                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
 656                         }
 657                 else
 658                         {
 659                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
 660                         dh=get_dh512();
 661                         }
 662                 (void)BIO_flush(bio_s_out);
 663
 664                 SSL_CTX_set_tmp_dh(ctx,dh);
 665                 DH_free(dh);
 666                 }
 667 #endif
 668
 669         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
 670                 goto end;
 671         if (s_dcert_file != NULL)
 672                 {
 673                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
 674                         goto end;
 675                 }
 676
 677 #ifndef NO_RSA
 678 #if 1
 679         SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
 680 #else
 681         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
 682                 {
 683                 RSA *rsa;
 684
 685                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
 686                 BIO_flush(bio_s_out);
 687
 688                 rsa=RSA_generate_key(512,RSA_F4,NULL);
 689
 690                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
 691                         {
 692                         ERR_print_errors(bio_err);
 693                         goto end;
 694                         }
 695                 RSA_free(rsa);
 696                 BIO_printf(bio_s_out,"\n");
 697                 }
 698 #endif
 699 #endif
 700
 701         if (cipher != NULL)
 702                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 703                 BIO_printf(bio_err,"error setting cipher list\n");
 704                 ERR_print_errors(bio_err);
 705                 goto end;
 706         }
 707         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
 708         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
 709                 sizeof s_server_session_id_context);
 710
 711         if (CAfile != NULL)
 712             SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
 713
 714         BIO_printf(bio_s_out,"ACCEPT\n");
 715         if (www)
 716                 do_server(port,&accept_socket,www_body, context);
 717         else
 718                 do_server(port,&accept_socket,sv_body, context);
 719         print_stats(bio_s_out,ctx);
 720         ret=0;
 721 end:
 722         if (ctx != NULL) SSL_CTX_free(ctx);
 723         if (bio_s_out != NULL)
 724                 {
 725                 BIO_free(bio_s_out);
 726                 bio_s_out=NULL;
 727                 }
 728         EXIT(ret);
 729         }
 730
 731 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
 732         {
 733         BIO_printf(bio,"%4ld items in the session cache\n",
 734                 SSL_CTX_sess_number(ssl_ctx));
 735         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
 736                 SSL_CTX_sess_connect(ssl_ctx));
 737         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
 738                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
 739         BIO_printf(bio,"%4d client connects that finished\n",
 740                 SSL_CTX_sess_connect_good(ssl_ctx));
 741         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
 742                 SSL_CTX_sess_accept(ssl_ctx));
 743         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
 744                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
 745         BIO_printf(bio,"%4d server accepts that finished\n",
 746                 SSL_CTX_sess_accept_good(ssl_ctx));
 747         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
 748         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
 749         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
 750         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
 751         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
 752                 SSL_CTX_sess_cache_full(ssl_ctx),
 753                 SSL_CTX_sess_get_cache_size(ssl_ctx));
 754         }
 755
 756 static int sv_body(char *hostname, int s, unsigned char *context)
 757         {
 758         char *buf=NULL;
 759         fd_set readfds;
 760         int ret=1,width;
 761         int k,i;
 762         unsigned long l;
 763         SSL *con=NULL;
 764         BIO *sbio;
 765 #ifdef WINDOWS
 766         struct timeval tv;
 767 #endif
 768
 769         if ((buf=Malloc(bufsize)) == NULL)
 770                 {
 771                 BIO_printf(bio_err,"out of memory\n");
 772                 goto err;
 773                 }
 774 #ifdef FIONBIO
 775         if (s_nbio)
 776                 {
 777                 unsigned long sl=1;
 778
 779                 if (!s_quiet)
 780                         BIO_printf(bio_err,"turning on non blocking io\n");
 781                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
 782                         ERR_print_errors(bio_err);
 783                 }
 784 #endif
 785
 786         if (con == NULL) {
 787                 con=SSL_new(ctx);
 788                 if(context)
 789                       SSL_set_session_id_context(con, context,
 790                                                  strlen((char *)context));
 791         }
 792         SSL_clear(con);
 793
 794         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 795         if (s_nbio_test)
 796                 {
 797                 BIO *test;
 798
 799                 test=BIO_new(BIO_f_nbio_test());
 800                 sbio=BIO_push(test,sbio);
 801                 }
 802         SSL_set_bio(con,sbio,sbio);
 803         SSL_set_accept_state(con);
 804         /* SSL_set_fd(con,s); */
 805
 806         if (s_debug)
 807                 {
 808                 con->debug=1;
 809                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
 810                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
 811                 }
 812
 813         width=s+1;
 814         for (;;)
 815                 {
 816                 int read_from_terminal;
 817                 int read_from_sslcon;
 818
 819                 read_from_terminal = 0;
 820                 read_from_sslcon = SSL_pending(con);
 821
 822                 if (!read_from_sslcon)
 823                         {
 824                         FD_ZERO(&readfds);
 825 #ifndef WINDOWS
 826                         FD_SET(fileno(stdin),&readfds);
 827 #endif
 828                         FD_SET(s,&readfds);
 829                         /* Note: under VMS with SOCKETSHR the second parameter is
 830                          * currently of type (int *) whereas under other systems
 831                          * it is (void *) if you don't have a cast it will choke
 832                          * the compiler: if you do have a cast then you can either
 833                          * go for (int *) or (void *).
 834                          */
 835 #ifdef WINDOWS
 836                         /* Under Windows we can't select on stdin: only
 837                          * on sockets. As a workaround we timeout the select every
 838                          * second and check for any keypress. In a proper Windows
 839                          * application we wouldn't do this because it is inefficient.
 840                          */
 841                         tv.tv_sec = 1;
 842                         tv.tv_usec = 0;
 843                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
 844                         if((i < 0) || (!i && !_kbhit() ) )continue;
 845                         if(_kbhit())
 846                                 read_from_terminal = 1;
 847 #else
 848                         i=select(width,(void *)&readfds,NULL,NULL,NULL);
 849                         if (i <= 0) continue;
 850                         if (FD_ISSET(fileno(stdin),&readfds))
 851                                 read_from_terminal = 1;
 852 #endif
 853                         if (FD_ISSET(s,&readfds))
 854                                 read_from_sslcon = 1;
 855                         }
 856                 if (read_from_terminal)
 857                         {
 858                         if (s_crlf)
 859                                 {
 860                                 int j, lf_num;
 861
 862                                 i=read(fileno(stdin), buf, bufsize/2);
 863                                 lf_num = 0;
 864                                 /* both loops are skipped when i <= 0 */
 865                                 for (j = 0; j < i; j++)
 866                                         if (buf[j] == '\n')
 867                                                 lf_num++;
 868                                 for (j = i-1; j >= 0; j--)
 869                                         {
 870                                         buf[j+lf_num] = buf[j];
 871                                         if (buf[j] == '\n')
 872                                                 {
 873                                                 lf_num--;
 874                                                 i++;
 875                                                 buf[j+lf_num] = '\r';
 876                                                 }
 877                                         }
 878                                 assert(lf_num == 0);
 879                                 }
 880                         else
 881                                 i=read(fileno(stdin),buf,bufsize);
 882                         if (!s_quiet)
 883                                 {
 884                                 if ((i <= 0) || (buf[0] == 'Q'))
 885                                         {
 886                                         BIO_printf(bio_s_out,"DONE\n");
 887                                         SHUTDOWN(s);
 888                                         close_accept_socket();
 889                                         ret= -11;
 890                                         goto err;
 891                                         }
 892                                 if ((i <= 0) || (buf[0] == 'q'))
 893                                         {
 894                                         BIO_printf(bio_s_out,"DONE\n");
 895                                         SHUTDOWN(s);
 896         /*                              close_accept_socket();
 897                                         ret= -11;*/
 898                                         goto err;
 899                                         }
 900                                 if ((buf[0] == 'r') &&
 901                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 902                                         {
 903                                         SSL_renegotiate(con);
 904                                         i=SSL_do_handshake(con);
 905                                         printf("SSL_do_handshake -> %d\n",i);
 906                                         i=0; /*13; */
 907                                         continue;
 908                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
 909                                         }
 910                                 if ((buf[0] == 'R') &&
 911                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 912                                         {
 913                                         SSL_set_verify(con,
 914                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
 915                                         SSL_renegotiate(con);
 916                                         i=SSL_do_handshake(con);
 917                                         printf("SSL_do_handshake -> %d\n",i);
 918                                         i=0; /* 13; */
 919                                         continue;
 920                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
 921                                         }
 922                                 if (buf[0] == 'P')
 923                                         {
 924                                         static char *str="Lets print some clear text\n";
 925                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
 926                                         }
 927                                 if (buf[0] == 'S')
 928                                         {
 929                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
 930                                         }
 931                                 }
 932 #ifdef CHARSET_EBCDIC
 933                         ebcdic2ascii(buf,buf,i);
 934 #endif
 935                         l=k=0;
 936                         for (;;)
 937                                 {
 938                                 /* should do a select for the write */
 939 #ifdef RENEG
 940 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
 941 #endif
 942                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
 943                                 switch (SSL_get_error(con,k))
 944                                         {
 945                                 case SSL_ERROR_NONE:
 946                                         break;
 947                                 case SSL_ERROR_WANT_WRITE:
 948                                 case SSL_ERROR_WANT_READ:
 949                                 case SSL_ERROR_WANT_X509_LOOKUP:
 950                                         BIO_printf(bio_s_out,"Write BLOCK\n");
 951                                         break;
 952                                 case SSL_ERROR_SYSCALL:
 953                                 case SSL_ERROR_SSL:
 954                                         BIO_printf(bio_s_out,"ERROR\n");
 955                                         ERR_print_errors(bio_err);
 956                                         ret=1;
 957                                         goto err;
 958                                         /* break; */
 959                                 case SSL_ERROR_ZERO_RETURN:
 960                                         BIO_printf(bio_s_out,"DONE\n");
 961                                         ret=1;
 962                                         goto err;
 963                                         }
 964                                 l+=k;
 965                                 i-=k;
 966                                 if (i <= 0) break;
 967                                 }
 968                         }
 969                 if (read_from_sslcon)
 970                         {
 971                         if (!SSL_is_init_finished(con))
 972                                 {
 973                                 i=init_ssl_connection(con);
 974
 975                                 if (i < 0)
 976                                         {
 977                                         ret=0;
 978                                         goto err;
 979                                         }
 980                                 else if (i == 0)
 981                                         {
 982                                         ret=1;
 983                                         goto err;
 984                                         }
 985                                 }
 986                         else
 987                                 {
 988 again:
 989                                 i=SSL_read(con,(char *)buf,bufsize);
 990                                 switch (SSL_get_error(con,i))
 991                                         {
 992                                 case SSL_ERROR_NONE:
 993 #ifdef CHARSET_EBCDIC
 994                                         ascii2ebcdic(buf,buf,i);
 995 #endif
 996                                         write(fileno(stdout),buf,
 997                                                 (unsigned int)i);
 998                                         if (SSL_pending(con)) goto again;
 999                                         break;
1000                                 case SSL_ERROR_WANT_WRITE:
1001                                 case SSL_ERROR_WANT_READ:
1002                                 case SSL_ERROR_WANT_X509_LOOKUP:
1003                                         BIO_printf(bio_s_out,"Read BLOCK\n");
1004                                         break;
1005                                 case SSL_ERROR_SYSCALL:
1006                                 case SSL_ERROR_SSL:
1007                                         BIO_printf(bio_s_out,"ERROR\n");
1008                                         ERR_print_errors(bio_err);
1009                                         ret=1;
1010                                         goto err;
1011                                 case SSL_ERROR_ZERO_RETURN:
1012                                         BIO_printf(bio_s_out,"DONE\n");
1013                                         ret=1;
1014                                         goto err;
1015                                         }
1016                                 }
1017                         }
1018                 }
1019 err:
1020         BIO_printf(bio_s_out,"shutting down SSL\n");
1021 #if 1
1022         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1023 #else
1024         SSL_shutdown(con);
1025 #endif
1026         if (con != NULL) SSL_free(con);
1027         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1028         if (buf != NULL)
1029                 {
1030                 memset(buf,0,bufsize);
1031                 Free(buf);
1032                 }
1033         if (ret >= 0)
1034                 BIO_printf(bio_s_out,"ACCEPT\n");
1035         return(ret);
1036         }
1037
1038 static void close_accept_socket(void)
1039         {
1040         BIO_printf(bio_err,"shutdown accept socket\n");
1041         if (accept_socket >= 0)
1042                 {
1043                 SHUTDOWN2(accept_socket);
1044                 }
1045         }
1046
1047 static int init_ssl_connection(SSL *con)
1048         {
1049         int i;
1050         const char *str;
1051         X509 *peer;
1052         long verify_error;
1053         MS_STATIC char buf[BUFSIZ];
1054
1055         if ((i=SSL_accept(con)) <= 0)
1056                 {
1057                 if (BIO_sock_should_retry(i))
1058                         {
1059                         BIO_printf(bio_s_out,"DELAY\n");
1060                         return(1);
1061                         }
1062
1063                 BIO_printf(bio_err,"ERROR\n");
1064                 verify_error=SSL_get_verify_result(con);
1065                 if (verify_error != X509_V_OK)
1066                         {
1067                         BIO_printf(bio_err,"verify error:%s\n",
1068                                 X509_verify_cert_error_string(verify_error));
1069                         }
1070                 else
1071                         ERR_print_errors(bio_err);
1072                 return(0);
1073                 }
1074
1075         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1076
1077         peer=SSL_get_peer_certificate(con);
1078         if (peer != NULL)
1079                 {
1080                 BIO_printf(bio_s_out,"Client certificate\n");
1081                 PEM_write_bio_X509(bio_s_out,peer);
1082                 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
1083                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1084                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
1085                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1086                 X509_free(peer);
1087                 }
1088
1089         if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
1090                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1091         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1092         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1093         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1094         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1095                 TLS1_FLAGS_TLS_PADDING_BUG)
1096                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1097
1098         return(1);
1099         }
1100
1101 #ifndef NO_DH
1102 static DH *load_dh_param(char *dhfile)
1103         {
1104         DH *ret=NULL;
1105         BIO *bio;
1106
1107         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1108                 goto err;
1109         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1110 err:
1111         if (bio != NULL) BIO_free(bio);
1112         return(ret);
1113         }
1114 #endif
1115
1116 #if 0
1117 static int load_CA(SSL_CTX *ctx, char *file)
1118         {
1119         FILE *in;
1120         X509 *x=NULL;
1121
1122         if ((in=fopen(file,"r")) == NULL)
1123                 return(0);
1124
1125         for (;;)
1126                 {
1127                 if (PEM_read_X509(in,&x,NULL) == NULL)
1128                         break;
1129                 SSL_CTX_add_client_CA(ctx,x);
1130                 }
1131         if (x != NULL) X509_free(x);
1132         fclose(in);
1133         return(1);
1134         }
1135 #endif
1136
1137 static int www_body(char *hostname, int s, unsigned char *context)
1138         {
1139         char *buf=NULL;
1140         int ret=1;
1141         int i,j,k,blank,dot;
1142         struct stat st_buf;
1143         SSL *con;
1144         SSL_CIPHER *c;
1145         BIO *io,*ssl_bio,*sbio;
1146         long total_bytes;
1147
1148         buf=Malloc(bufsize);
1149         if (buf == NULL) return(0);
1150         io=BIO_new(BIO_f_buffer());
1151         ssl_bio=BIO_new(BIO_f_ssl());
1152         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1153
1154 #ifdef FIONBIO
1155         if (s_nbio)
1156                 {
1157                 unsigned long sl=1;
1158
1159                 if (!s_quiet)
1160                         BIO_printf(bio_err,"turning on non blocking io\n");
1161                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1162                         ERR_print_errors(bio_err);
1163                 }
1164 #endif
1165
1166         /* lets make the output buffer a reasonable size */
1167         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1168
1169         if ((con=SSL_new(ctx)) == NULL) goto err;
1170         if(context) SSL_set_session_id_context(con, context,
1171                                                strlen((char *)context));
1172
1173         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1174         if (s_nbio_test)
1175                 {
1176                 BIO *test;
1177
1178                 test=BIO_new(BIO_f_nbio_test());
1179                 sbio=BIO_push(test,sbio);
1180                 }
1181         SSL_set_bio(con,sbio,sbio);
1182         SSL_set_accept_state(con);
1183
1184         /* SSL_set_fd(con,s); */
1185         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1186         BIO_push(io,ssl_bio);
1187 #ifdef CHARSET_EBCDIC
1188         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1189 #endif
1190
1191         if (s_debug)
1192                 {
1193                 con->debug=1;
1194                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1195                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1196                 }
1197
1198         blank=0;
1199         for (;;)
1200                 {
1201                 if (hack)
1202                         {
1203                         i=SSL_accept(con);
1204
1205                         switch (SSL_get_error(con,i))
1206                                 {
1207                         case SSL_ERROR_NONE:
1208                                 break;
1209                         case SSL_ERROR_WANT_WRITE:
1210                         case SSL_ERROR_WANT_READ:
1211                         case SSL_ERROR_WANT_X509_LOOKUP:
1212                                 continue;
1213                         case SSL_ERROR_SYSCALL:
1214                         case SSL_ERROR_SSL:
1215                         case SSL_ERROR_ZERO_RETURN:
1216                                 ret=1;
1217                                 goto err;
1218                                 /* break; */
1219                                 }
1220
1221                         SSL_renegotiate(con);
1222                         SSL_write(con,NULL,0);
1223                         }
1224
1225                 i=BIO_gets(io,buf,bufsize-1);
1226                 if (i < 0) /* error */
1227                         {
1228                         if (!BIO_should_retry(io))
1229                                 {
1230                                 if (!s_quiet)
1231                                         ERR_print_errors(bio_err);
1232                                 goto err;
1233                                 }
1234                         else
1235                                 {
1236                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1237 #ifndef MSDOS
1238                                 sleep(1);
1239 #endif
1240                                 continue;
1241                                 }
1242                         }
1243                 else if (i == 0) /* end of input */
1244                         {
1245                         ret=1;
1246                         goto end;
1247                         }
1248
1249                 /* else we have data */
1250                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1251                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1252                         {
1253                         char *p;
1254                         X509 *peer;
1255                         STACK_OF(SSL_CIPHER) *sk;
1256                         static char *space="                          ";
1257
1258                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1259                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1260                         BIO_puts(io,"<pre>\n");
1261 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1262                         BIO_puts(io,"\n");
1263                         for (i=0; i<local_argc; i++)
1264                                 {
1265                                 BIO_puts(io,local_argv[i]);
1266                                 BIO_write(io," ",1);
1267                                 }
1268                         BIO_puts(io,"\n");
1269
1270                         /* The following is evil and should not really
1271                          * be done */
1272                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1273                         sk=SSL_get_ciphers(con);
1274                         j=sk_SSL_CIPHER_num(sk);
1275                         for (i=0; i<j; i++)
1276                                 {
1277                                 c=sk_SSL_CIPHER_value(sk,i);
1278                                 BIO_printf(io,"%-11s:%-25s",
1279                                         SSL_CIPHER_get_version(c),
1280                                         SSL_CIPHER_get_name(c));
1281                                 if ((((i+1)%2) == 0) && (i+1 != j))
1282                                         BIO_puts(io,"\n");
1283                                 }
1284                         BIO_puts(io,"\n");
1285                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1286                         if (p != NULL)
1287                                 {
1288                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1289                                 j=i=0;
1290                                 while (*p)
1291                                         {
1292                                         if (*p == ':')
1293                                                 {
1294                                                 BIO_write(io,space,26-j);
1295                                                 i++;
1296                                                 j=0;
1297                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1298                                                 }
1299                                         else
1300                                                 {
1301                                                 BIO_write(io,p,1);
1302                                                 j++;
1303                                                 }
1304                                         p++;
1305                                         }
1306                                 BIO_puts(io,"\n");
1307                                 }
1308                         BIO_printf(io,((con->hit)
1309                                 ?"---\nReused, "
1310                                 :"---\nNew, "));
1311                         c=SSL_get_current_cipher(con);
1312                         BIO_printf(io,"%s, Cipher is %s\n",
1313                                 SSL_CIPHER_get_version(c),
1314                                 SSL_CIPHER_get_name(c));
1315                         SSL_SESSION_print(io,SSL_get_session(con));
1316                         BIO_printf(io,"---\n");
1317                         print_stats(io,SSL_get_SSL_CTX(con));
1318                         BIO_printf(io,"---\n");
1319                         peer=SSL_get_peer_certificate(con);
1320                         if (peer != NULL)
1321                                 {
1322                                 BIO_printf(io,"Client certificate\n");
1323                                 X509_print(io,peer);
1324                                 PEM_write_bio_X509(io,peer);
1325                                 }
1326                         else
1327                                 BIO_puts(io,"no client certificate available\n");
1328                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1329                         break;
1330                         }
1331                 else if ((www == 2) && (strncmp("GET /",buf,5) == 0))
1332                         {
1333                         BIO *file;
1334                         char *p,*e;
1335                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1336
1337                         /* skip the '/' */
1338                         p= &(buf[5]);
1339                         dot=0;
1340                         for (e=p; *e != '\0'; e++)
1341                                 {
1342                                 if (e[0] == ' ') break;
1343                                 if (    (e[0] == '.') &&
1344                                         (strncmp(&(e[-1]),"/../",4) == 0))
1345                                         dot=1;
1346                                 }
1347
1348
1349                         if (*e == '\0')
1350                                 {
1351                                 BIO_puts(io,text);
1352                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1353                                 break;
1354                                 }
1355                         *e='\0';
1356
1357                         if (dot)
1358                                 {
1359                                 BIO_puts(io,text);
1360                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1361                                 break;
1362                                 }
1363
1364                         if (*p == '/')
1365                                 {
1366                                 BIO_puts(io,text);
1367                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1368                                 break;
1369                                 }
1370
1371                         /* append if a directory lookup */
1372                         if (e[-1] == '/')
1373                                 strcat(p,"index.html");
1374
1375                         /* if a directory, do the index thang */
1376                         if (stat(p,&st_buf) < 0)
1377                                 {
1378                                 BIO_puts(io,text);
1379                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1380                                 ERR_print_errors(io);
1381                                 break;
1382                                 }
1383                         if (S_ISDIR(st_buf.st_mode))
1384                                 {
1385                                 strcat(p,"/index.html");
1386                                 }
1387
1388                         if ((file=BIO_new_file(p,"r")) == NULL)
1389                                 {
1390                                 BIO_puts(io,text);
1391                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1392                                 ERR_print_errors(io);
1393                                 break;
1394                                 }
1395
1396                         if (!s_quiet)
1397                                 BIO_printf(bio_err,"FILE:%s\n",p);
1398
1399                         i=strlen(p);
1400                         if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1401                                 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1402                                 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1403                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1404                         else
1405                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1406                         /* send the file */
1407                         total_bytes=0;
1408                         for (;;)
1409                                 {
1410                                 i=BIO_read(file,buf,bufsize);
1411                                 if (i <= 0) break;
1412
1413 #ifdef RENEG
1414                                 total_bytes+=i;
1415                                 fprintf(stderr,"%d\n",i);
1416                                 if (total_bytes > 3*1024)
1417                                         {
1418                                         total_bytes=0;
1419                                         fprintf(stderr,"RENEGOTIATE\n");
1420                                         SSL_renegotiate(con);
1421                                         }
1422 #endif
1423
1424                                 for (j=0; j<i; )
1425                                         {
1426 #ifdef RENEG
1427 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1428 #endif
1429                                         k=BIO_write(io,&(buf[j]),i-j);
1430                                         if (k <= 0)
1431                                                 {
1432                                                 if (!BIO_should_retry(io))
1433                                                         goto write_error;
1434                                                 else
1435                                                         {
1436                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1437                                                         }
1438                                                 }
1439                                         else
1440                                                 {
1441                                                 j+=k;
1442                                                 }
1443                                         }
1444                                 }
1445 write_error:
1446                         BIO_free(file);
1447                         break;
1448                         }
1449                 }
1450
1451         for (;;)
1452                 {
1453                 i=(int)BIO_flush(io);
1454                 if (i <= 0)
1455                         {
1456                         if (!BIO_should_retry(io))
1457                                 break;
1458                         }
1459                 else
1460                         break;
1461                 }
1462 end:
1463 #if 1
1464         /* make sure we re-use sessions */
1465         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1466 #else
1467         /* This kills performance */
1468 /*      SSL_shutdown(con); A shutdown gets sent in the
1469  *      BIO_free_all(io) procession */
1470 #endif
1471
1472 err:
1473
1474         if (ret >= 0)
1475                 BIO_printf(bio_s_out,"ACCEPT\n");
1476
1477         if (buf != NULL) Free(buf);
1478         if (io != NULL) BIO_free_all(io);
1479 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1480         return(ret);
1481         }
1482
1483 #ifndef NO_RSA
1484 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1485         {
1486         static RSA *rsa_tmp=NULL;
1487
1488         if (rsa_tmp == NULL)
1489                 {
1490                 if (!s_quiet)
1491                         {
1492                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1493                         (void)BIO_flush(bio_err);
1494                         }
1495                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1496                 if (!s_quiet)
1497                         {
1498                         BIO_printf(bio_err,"\n");
1499                         (void)BIO_flush(bio_err);
1500                         }
1501                 }
1502         return(rsa_tmp);
1503         }
1504 #endif