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 compatability\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((char*)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 argc, char *argv[])
 401         {
 402         short port=PORT;
 403         char *CApath=NULL,*CAfile=NULL;
 404         char *context = NULL;
 405         char *dhfile = NULL;
 406         int badop=0,bugs=0;
 407         int ret=1;
 408         int off=0;
 409         int no_tmp_rsa=0,no_dhe=0,nocert=0;
 410         int state=0;
 411         SSL_METHOD *meth=NULL;
 412 #ifndef NO_DH
 413         DH *dh=NULL;
 414 #endif
 415
 416 #if !defined(NO_SSL2) && !defined(NO_SSL3)
 417         meth=SSLv23_server_method();
 418 #elif !defined(NO_SSL3)
 419         meth=SSLv3_server_method();
 420 #elif !defined(NO_SSL2)
 421         meth=SSLv2_server_method();
 422 #endif
 423
 424         local_argc=argc;
 425         local_argv=argv;
 426
 427         apps_startup();
 428 #ifdef MONOLITH
 429         s_server_init();
 430 #endif
 431
 432         if (bio_err == NULL)
 433                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 434
 435         verify_depth=0;
 436 #ifdef FIONBIO
 437         s_nbio=0;
 438 #endif
 439         s_nbio_test=0;
 440
 441         argc--;
 442         argv++;
 443
 444         while (argc >= 1)
 445                 {
 446                 if      ((strcmp(*argv,"-port") == 0) ||
 447                          (strcmp(*argv,"-accept") == 0))
 448                         {
 449                         if (--argc < 1) goto bad;
 450                         if (!extract_port(*(++argv),&port))
 451                                 goto bad;
 452                         }
 453                 else if (strcmp(*argv,"-verify") == 0)
 454                         {
 455                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 456                         if (--argc < 1) goto bad;
 457                         verify_depth=atoi(*(++argv));
 458                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 459                         }
 460                 else if (strcmp(*argv,"-Verify") == 0)
 461                         {
 462                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 463                                 SSL_VERIFY_CLIENT_ONCE;
 464                         if (--argc < 1) goto bad;
 465                         verify_depth=atoi(*(++argv));
 466                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 467                         }
 468                 else if (strcmp(*argv,"-context") == 0)
 469                         {
 470                         if (--argc < 1) goto bad;
 471                         context= *(++argv);
 472                         }
 473                 else if (strcmp(*argv,"-cert") == 0)
 474                         {
 475                         if (--argc < 1) goto bad;
 476                         s_cert_file= *(++argv);
 477                         }
 478                 else if (strcmp(*argv,"-key") == 0)
 479                         {
 480                         if (--argc < 1) goto bad;
 481                         s_key_file= *(++argv);
 482                         }
 483                 else if (strcmp(*argv,"-dhparam") == 0)
 484                         {
 485                         if (--argc < 1) goto bad;
 486                         dhfile = *(++argv);
 487                         }
 488                 else if (strcmp(*argv,"-dcert") == 0)
 489                         {
 490                         if (--argc < 1) goto bad;
 491                         s_dcert_file= *(++argv);
 492                         }
 493                 else if (strcmp(*argv,"-dkey") == 0)
 494                         {
 495                         if (--argc < 1) goto bad;
 496                         s_dkey_file= *(++argv);
 497                         }
 498                 else if (strcmp(*argv,"-nocert") == 0)
 499                         {
 500                         nocert=1;
 501                         }
 502                 else if (strcmp(*argv,"-CApath") == 0)
 503                         {
 504                         if (--argc < 1) goto bad;
 505                         CApath= *(++argv);
 506                         }
 507                 else if (strcmp(*argv,"-cipher") == 0)
 508                         {
 509                         if (--argc < 1) goto bad;
 510                         cipher= *(++argv);
 511                         }
 512                 else if (strcmp(*argv,"-CAfile") == 0)
 513                         {
 514                         if (--argc < 1) goto bad;
 515                         CAfile= *(++argv);
 516                         }
 517 #ifdef FIONBIO
 518                 else if (strcmp(*argv,"-nbio") == 0)
 519                         { s_nbio=1; }
 520 #endif
 521                 else if (strcmp(*argv,"-nbio_test") == 0)
 522                         {
 523 #ifdef FIONBIO
 524                         s_nbio=1;
 525 #endif
 526                         s_nbio_test=1;
 527                         }
 528                 else if (strcmp(*argv,"-debug") == 0)
 529                         { s_debug=1; }
 530                 else if (strcmp(*argv,"-hack") == 0)
 531                         { hack=1; }
 532                 else if (strcmp(*argv,"-state") == 0)
 533                         { state=1; }
 534                 else if (strcmp(*argv,"-crlf") == 0)
 535                         { s_crlf=1; }
 536                 else if (strcmp(*argv,"-quiet") == 0)
 537                         { s_quiet=1; }
 538                 else if (strcmp(*argv,"-bugs") == 0)
 539                         { bugs=1; }
 540                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 541                         { no_tmp_rsa=1; }
 542                 else if (strcmp(*argv,"-no_dhe") == 0)
 543                         { no_dhe=1; }
 544                 else if (strcmp(*argv,"-www") == 0)
 545                         { www=1; }
 546                 else if (strcmp(*argv,"-WWW") == 0)
 547                         { www=2; }
 548                 else if (strcmp(*argv,"-no_ssl2") == 0)
 549                         { off|=SSL_OP_NO_SSLv2; }
 550                 else if (strcmp(*argv,"-no_ssl3") == 0)
 551                         { off|=SSL_OP_NO_SSLv3; }
 552                 else if (strcmp(*argv,"-no_tls1") == 0)
 553                         { off|=SSL_OP_NO_TLSv1; }
 554 #ifndef NO_SSL2
 555                 else if (strcmp(*argv,"-ssl2") == 0)
 556                         { meth=SSLv2_server_method(); }
 557 #endif
 558 #ifndef NO_SSL3
 559                 else if (strcmp(*argv,"-ssl3") == 0)
 560                         { meth=SSLv3_server_method(); }
 561 #endif
 562 #ifndef NO_TLS1
 563                 else if (strcmp(*argv,"-tls1") == 0)
 564                         { meth=TLSv1_server_method(); }
 565 #endif
 566                 else
 567                         {
 568                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 569                         badop=1;
 570                         break;
 571                         }
 572                 argc--;
 573                 argv++;
 574                 }
 575         if (badop)
 576                 {
 577 bad:
 578                 sv_usage();
 579                 goto end;
 580                 }
 581
 582         app_RAND_load_file(NULL, bio_err, 0);
 583
 584         if (bio_s_out == NULL)
 585                 {
 586                 if (s_quiet && !s_debug)
 587                         {
 588                         bio_s_out=BIO_new(BIO_s_null());
 589                         }
 590                 else
 591                         {
 592                         if (bio_s_out == NULL)
 593                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 594                         }
 595                 }
 596
 597 #if !defined(NO_RSA) || !defined(NO_DSA)
 598         if (nocert)
 599 #endif
 600                 {
 601                 s_cert_file=NULL;
 602                 s_key_file=NULL;
 603                 s_dcert_file=NULL;
 604                 s_dkey_file=NULL;
 605                 }
 606
 607         SSL_load_error_strings();
 608         SSLeay_add_ssl_algorithms();
 609
 610         ctx=SSL_CTX_new(meth);
 611         if (ctx == NULL)
 612                 {
 613                 ERR_print_errors(bio_err);
 614                 goto end;
 615                 }
 616
 617         SSL_CTX_set_quiet_shutdown(ctx,1);
 618         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
 619         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
 620         SSL_CTX_set_options(ctx,off);
 621         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
 622
 623         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 624
 625         SSL_CTX_sess_set_cache_size(ctx,128);
 626
 627 #if 0
 628         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
 629 #endif
 630
 631 #if 0
 632         if (s_cert_file == NULL)
 633                 {
 634                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
 635                 goto end;
 636                 }
 637 #endif
 638
 639         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 640                 (!SSL_CTX_set_default_verify_paths(ctx)))
 641                 {
 642                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
 643                 ERR_print_errors(bio_err);
 644                 /* goto end; */
 645                 }
 646
 647 #ifndef NO_DH
 648         if (!no_dhe)
 649                 {
 650                 dh=load_dh_param(dhfile ? dhfile : s_cert_file);
 651                 if (dh != NULL)
 652                         {
 653                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
 654                         }
 655                 else
 656                         {
 657                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
 658                         dh=get_dh512();
 659                         }
 660                 (void)BIO_flush(bio_s_out);
 661
 662                 SSL_CTX_set_tmp_dh(ctx,dh);
 663                 DH_free(dh);
 664                 }
 665 #endif
 666
 667         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
 668                 goto end;
 669         if (s_dcert_file != NULL)
 670                 {
 671                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
 672                         goto end;
 673                 }
 674
 675 #ifndef NO_RSA
 676 #if 1
 677         SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
 678 #else
 679         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
 680                 {
 681                 RSA *rsa;
 682
 683                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
 684                 BIO_flush(bio_s_out);
 685
 686                 rsa=RSA_generate_key(512,RSA_F4,NULL);
 687
 688                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
 689                         {
 690                         ERR_print_errors(bio_err);
 691                         goto end;
 692                         }
 693                 RSA_free(rsa);
 694                 BIO_printf(bio_s_out,"\n");
 695                 }
 696 #endif
 697 #endif
 698
 699         if (cipher != NULL)
 700                 SSL_CTX_set_cipher_list(ctx,cipher);
 701         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
 702         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
 703                 sizeof s_server_session_id_context);
 704
 705         if (CAfile != NULL)
 706             SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
 707
 708         BIO_printf(bio_s_out,"ACCEPT\n");
 709         if (www)
 710                 do_server(port,&accept_socket,www_body, context);
 711         else
 712                 do_server(port,&accept_socket,sv_body, context);
 713         print_stats(bio_s_out,ctx);
 714         ret=0;
 715 end:
 716         if (ctx != NULL) SSL_CTX_free(ctx);
 717         if (bio_s_out != NULL)
 718                 {
 719                 BIO_free(bio_s_out);
 720                 bio_s_out=NULL;
 721                 }
 722         EXIT(ret);
 723         }
 724
 725 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
 726         {
 727         BIO_printf(bio,"%4ld items in the session cache\n",
 728                 SSL_CTX_sess_number(ssl_ctx));
 729         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
 730                 SSL_CTX_sess_connect(ssl_ctx));
 731         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
 732                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
 733         BIO_printf(bio,"%4d client connects that finished\n",
 734                 SSL_CTX_sess_connect_good(ssl_ctx));
 735         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
 736                 SSL_CTX_sess_accept(ssl_ctx));
 737         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
 738                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
 739         BIO_printf(bio,"%4d server accepts that finished\n",
 740                 SSL_CTX_sess_accept_good(ssl_ctx));
 741         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
 742         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
 743         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
 744         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
 745         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
 746                 SSL_CTX_sess_cache_full(ssl_ctx),
 747                 SSL_CTX_sess_get_cache_size(ssl_ctx));
 748         }
 749
 750 static int sv_body(char *hostname, int s, unsigned char *context)
 751         {
 752         char *buf=NULL;
 753         fd_set readfds;
 754         int ret=1,width;
 755         int k,i;
 756         unsigned long l;
 757         SSL *con=NULL;
 758         BIO *sbio;
 759 #ifdef WINDOWS
 760         struct timeval tv;
 761 #endif
 762
 763         if ((buf=Malloc(bufsize)) == NULL)
 764                 {
 765                 BIO_printf(bio_err,"out of memory\n");
 766                 goto err;
 767                 }
 768 #ifdef FIONBIO
 769         if (s_nbio)
 770                 {
 771                 unsigned long sl=1;
 772
 773                 if (!s_quiet)
 774                         BIO_printf(bio_err,"turning on non blocking io\n");
 775                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
 776                         ERR_print_errors(bio_err);
 777                 }
 778 #endif
 779
 780         if (con == NULL) {
 781                 con=(SSL *)SSL_new(ctx);
 782                 if(context)
 783                       SSL_set_session_id_context(con, context,
 784                                                  strlen((char *)context));
 785         }
 786         SSL_clear(con);
 787
 788         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 789         if (s_nbio_test)
 790                 {
 791                 BIO *test;
 792
 793                 test=BIO_new(BIO_f_nbio_test());
 794                 sbio=BIO_push(test,sbio);
 795                 }
 796         SSL_set_bio(con,sbio,sbio);
 797         SSL_set_accept_state(con);
 798         /* SSL_set_fd(con,s); */
 799
 800         if (s_debug)
 801                 {
 802                 con->debug=1;
 803                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
 804                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
 805                 }
 806
 807         width=s+1;
 808         for (;;)
 809                 {
 810                 FD_ZERO(&readfds);
 811 #ifndef WINDOWS
 812                 FD_SET(fileno(stdin),&readfds);
 813 #endif
 814                 FD_SET(s,&readfds);
 815                 /* Note: under VMS with SOCKETSHR the second parameter is
 816                  * currently of type (int *) whereas under other systems
 817                  * it is (void *) if you don't have a cast it will choke
 818                  * the compiler: if you do have a cast then you can either
 819                  * go for (int *) or (void *).
 820                  */
 821 #ifdef WINDOWS
 822                 /* Under Windows we can't select on stdin: only
 823                  * on sockets. As a workaround we timeout the select every
 824                  * second and check for any keypress. In a proper Windows
 825                  * application we wouldn't do this because it is inefficient.
 826                  */
 827                 tv.tv_sec = 1;
 828                 tv.tv_usec = 0;
 829                 i=select(width,(void *)&readfds,NULL,NULL,&tv);
 830                 if((i < 0) || (!i && !_kbhit() ) )continue;
 831                 if(_kbhit())
 832 #else
 833                 i=select(width,(void *)&readfds,NULL,NULL,NULL);
 834                 if (i <= 0) continue;
 835                 if (FD_ISSET(fileno(stdin),&readfds))
 836 #endif
 837                         {
 838                         if (s_crlf)
 839                                 {
 840                                 int j, lf_num;
 841
 842                                 i=read(fileno(stdin), buf, bufsize/2);
 843                                 lf_num = 0;
 844                                 /* both loops are skipped when i <= 0 */
 845                                 for (j = 0; j < i; j++)
 846                                         if (buf[j] == '\n')
 847                                                 lf_num++;
 848                                 for (j = i-1; j >= 0; j--)
 849                                         {
 850                                         buf[j+lf_num] = buf[j];
 851                                         if (buf[j] == '\n')
 852                                                 {
 853                                                 lf_num--;
 854                                                 i++;
 855                                                 buf[j+lf_num] = '\r';
 856                                                 }
 857                                         }
 858                                 assert(lf_num == 0);
 859                                 }
 860                         else
 861                                 i=read(fileno(stdin),buf,bufsize);
 862                         if (!s_quiet)
 863                                 {
 864                                 if ((i <= 0) || (buf[0] == 'Q'))
 865                                         {
 866                                         BIO_printf(bio_s_out,"DONE\n");
 867                                         SHUTDOWN(s);
 868                                         close_accept_socket();
 869                                         ret= -11;
 870                                         goto err;
 871                                         }
 872                                 if ((i <= 0) || (buf[0] == 'q'))
 873                                         {
 874                                         BIO_printf(bio_s_out,"DONE\n");
 875                                         SHUTDOWN(s);
 876         /*                              close_accept_socket();
 877                                         ret= -11;*/
 878                                         goto err;
 879                                         }
 880                                 if ((buf[0] == 'r') &&
 881                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 882                                         {
 883                                         SSL_renegotiate(con);
 884                                         i=SSL_do_handshake(con);
 885                                         printf("SSL_do_handshake -> %d\n",i);
 886                                         i=0; /*13; */
 887                                         continue;
 888                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
 889                                         }
 890                                 if ((buf[0] == 'R') &&
 891                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 892                                         {
 893                                         SSL_set_verify(con,
 894                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
 895                                         SSL_renegotiate(con);
 896                                         i=SSL_do_handshake(con);
 897                                         printf("SSL_do_handshake -> %d\n",i);
 898                                         i=0; /* 13; */
 899                                         continue;
 900                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
 901                                         }
 902                                 if (buf[0] == 'P')
 903                                         {
 904                                         static char *str="Lets print some clear text\n";
 905                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
 906                                         }
 907                                 if (buf[0] == 'S')
 908                                         {
 909                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
 910                                         }
 911                                 }
 912 #ifdef CHARSET_EBCDIC
 913                         ebcdic2ascii(buf,buf,i);
 914 #endif
 915                         l=k=0;
 916                         for (;;)
 917                                 {
 918                                 /* should do a select for the write */
 919 #ifdef RENEG
 920 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
 921 #endif
 922                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
 923                                 switch (SSL_get_error(con,k))
 924                                         {
 925                                 case SSL_ERROR_NONE:
 926                                         break;
 927                                 case SSL_ERROR_WANT_WRITE:
 928                                 case SSL_ERROR_WANT_READ:
 929                                 case SSL_ERROR_WANT_X509_LOOKUP:
 930                                         BIO_printf(bio_s_out,"Write BLOCK\n");
 931                                         break;
 932                                 case SSL_ERROR_SYSCALL:
 933                                 case SSL_ERROR_SSL:
 934                                         BIO_printf(bio_s_out,"ERROR\n");
 935                                         ERR_print_errors(bio_err);
 936                                         ret=1;
 937                                         goto err;
 938                                         /* break; */
 939                                 case SSL_ERROR_ZERO_RETURN:
 940                                         BIO_printf(bio_s_out,"DONE\n");
 941                                         ret=1;
 942                                         goto err;
 943                                         }
 944                                 l+=k;
 945                                 i-=k;
 946                                 if (i <= 0) break;
 947                                 }
 948                         }
 949                 if (FD_ISSET(s,&readfds))
 950                         {
 951                         if (!SSL_is_init_finished(con))
 952                                 {
 953                                 i=init_ssl_connection(con);
 954
 955                                 if (i < 0)
 956                                         {
 957                                         ret=0;
 958                                         goto err;
 959                                         }
 960                                 else if (i == 0)
 961                                         {
 962                                         ret=1;
 963                                         goto err;
 964                                         }
 965                                 }
 966                         else
 967                                 {
 968 again:
 969                                 i=SSL_read(con,(char *)buf,bufsize);
 970                                 switch (SSL_get_error(con,i))
 971                                         {
 972                                 case SSL_ERROR_NONE:
 973 #ifdef CHARSET_EBCDIC
 974                                         ascii2ebcdic(buf,buf,i);
 975 #endif
 976                                         write(fileno(stdout),buf,
 977                                                 (unsigned int)i);
 978                                         if (SSL_pending(con)) goto again;
 979                                         break;
 980                                 case SSL_ERROR_WANT_WRITE:
 981                                 case SSL_ERROR_WANT_READ:
 982                                 case SSL_ERROR_WANT_X509_LOOKUP:
 983                                         BIO_printf(bio_s_out,"Read BLOCK\n");
 984                                         break;
 985                                 case SSL_ERROR_SYSCALL:
 986                                 case SSL_ERROR_SSL:
 987                                         BIO_printf(bio_s_out,"ERROR\n");
 988                                         ERR_print_errors(bio_err);
 989                                         ret=1;
 990                                         goto err;
 991                                 case SSL_ERROR_ZERO_RETURN:
 992                                         BIO_printf(bio_s_out,"DONE\n");
 993                                         ret=1;
 994                                         goto err;
 995                                         }
 996                                 }
 997                         }
 998                 }
 999 err:
1000         BIO_printf(bio_s_out,"shutting down SSL\n");
1001 #if 1
1002         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1003 #else
1004         SSL_shutdown(con);
1005 #endif
1006         if (con != NULL) SSL_free(con);
1007         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1008         if (buf != NULL)
1009                 {
1010                 memset(buf,0,bufsize);
1011                 Free(buf);
1012                 }
1013         if (ret >= 0)
1014                 BIO_printf(bio_s_out,"ACCEPT\n");
1015         return(ret);
1016         }
1017
1018 static void close_accept_socket(void)
1019         {
1020         BIO_printf(bio_err,"shutdown accept socket\n");
1021         if (accept_socket >= 0)
1022                 {
1023                 SHUTDOWN2(accept_socket);
1024                 }
1025         }
1026
1027 static int init_ssl_connection(SSL *con)
1028         {
1029         int i;
1030         const char *str;
1031         X509 *peer;
1032         long verify_error;
1033         MS_STATIC char buf[BUFSIZ];
1034
1035         if ((i=SSL_accept(con)) <= 0)
1036                 {
1037                 if (BIO_sock_should_retry(i))
1038                         {
1039                         BIO_printf(bio_s_out,"DELAY\n");
1040                         return(1);
1041                         }
1042
1043                 BIO_printf(bio_err,"ERROR\n");
1044                 verify_error=SSL_get_verify_result(con);
1045                 if (verify_error != X509_V_OK)
1046                         {
1047                         BIO_printf(bio_err,"verify error:%s\n",
1048                                 X509_verify_cert_error_string(verify_error));
1049                         }
1050                 else
1051                         ERR_print_errors(bio_err);
1052                 return(0);
1053                 }
1054
1055         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1056
1057         peer=SSL_get_peer_certificate(con);
1058         if (peer != NULL)
1059                 {
1060                 BIO_printf(bio_s_out,"Client certificate\n");
1061                 PEM_write_bio_X509(bio_s_out,peer);
1062                 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
1063                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1064                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
1065                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1066                 X509_free(peer);
1067                 }
1068
1069         if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
1070                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1071         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1072         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1073         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1074         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1075                 TLS1_FLAGS_TLS_PADDING_BUG)
1076                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1077
1078         return(1);
1079         }
1080
1081 #ifndef NO_DH
1082 static DH *load_dh_param(char *dhfile)
1083         {
1084         DH *ret=NULL;
1085         BIO *bio;
1086
1087         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1088                 goto err;
1089         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1090 err:
1091         if (bio != NULL) BIO_free(bio);
1092         return(ret);
1093         }
1094 #endif
1095
1096 #if 0
1097 static int load_CA(SSL_CTX *ctx, char *file)
1098         {
1099         FILE *in;
1100         X509 *x=NULL;
1101
1102         if ((in=fopen(file,"r")) == NULL)
1103                 return(0);
1104
1105         for (;;)
1106                 {
1107                 if (PEM_read_X509(in,&x,NULL) == NULL)
1108                         break;
1109                 SSL_CTX_add_client_CA(ctx,x);
1110                 }
1111         if (x != NULL) X509_free(x);
1112         fclose(in);
1113         return(1);
1114         }
1115 #endif
1116
1117 static int www_body(char *hostname, int s, unsigned char *context)
1118         {
1119         char *buf=NULL;
1120         int ret=1;
1121         int i,j,k,blank,dot;
1122         struct stat st_buf;
1123         SSL *con;
1124         SSL_CIPHER *c;
1125         BIO *io,*ssl_bio,*sbio;
1126         long total_bytes;
1127
1128         buf=Malloc(bufsize);
1129         if (buf == NULL) return(0);
1130         io=BIO_new(BIO_f_buffer());
1131         ssl_bio=BIO_new(BIO_f_ssl());
1132         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1133
1134 #ifdef FIONBIO
1135         if (s_nbio)
1136                 {
1137                 unsigned long sl=1;
1138
1139                 if (!s_quiet)
1140                         BIO_printf(bio_err,"turning on non blocking io\n");
1141                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1142                         ERR_print_errors(bio_err);
1143                 }
1144 #endif
1145
1146         /* lets make the output buffer a reasonable size */
1147         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1148
1149         if ((con=(SSL *)SSL_new(ctx)) == NULL) goto err;
1150         if(context) SSL_set_session_id_context(con, context,
1151                                                strlen((char *)context));
1152
1153         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1154         if (s_nbio_test)
1155                 {
1156                 BIO *test;
1157
1158                 test=BIO_new(BIO_f_nbio_test());
1159                 sbio=BIO_push(test,sbio);
1160                 }
1161         SSL_set_bio(con,sbio,sbio);
1162         SSL_set_accept_state(con);
1163
1164         /* SSL_set_fd(con,s); */
1165         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1166         BIO_push(io,ssl_bio);
1167 #ifdef CHARSET_EBCDIC
1168         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1169 #endif
1170
1171         if (s_debug)
1172                 {
1173                 con->debug=1;
1174                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1175                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1176                 }
1177
1178         blank=0;
1179         for (;;)
1180                 {
1181                 if (hack)
1182                         {
1183                         i=SSL_accept(con);
1184
1185                         switch (SSL_get_error(con,i))
1186                                 {
1187                         case SSL_ERROR_NONE:
1188                                 break;
1189                         case SSL_ERROR_WANT_WRITE:
1190                         case SSL_ERROR_WANT_READ:
1191                         case SSL_ERROR_WANT_X509_LOOKUP:
1192                                 continue;
1193                         case SSL_ERROR_SYSCALL:
1194                         case SSL_ERROR_SSL:
1195                         case SSL_ERROR_ZERO_RETURN:
1196                                 ret=1;
1197                                 goto err;
1198                                 /* break; */
1199                                 }
1200
1201                         SSL_renegotiate(con);
1202                         SSL_write(con,NULL,0);
1203                         }
1204
1205                 i=BIO_gets(io,buf,bufsize-1);
1206                 if (i < 0) /* error */
1207                         {
1208                         if (!BIO_should_retry(io))
1209                                 {
1210                                 if (!s_quiet)
1211                                         ERR_print_errors(bio_err);
1212                                 goto err;
1213                                 }
1214                         else
1215                                 {
1216                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1217 #ifndef MSDOS
1218                                 sleep(1);
1219 #endif
1220                                 continue;
1221                                 }
1222                         }
1223                 else if (i == 0) /* end of input */
1224                         {
1225                         ret=1;
1226                         goto end;
1227                         }
1228
1229                 /* else we have data */
1230                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1231                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1232                         {
1233                         char *p;
1234                         X509 *peer;
1235                         STACK_OF(SSL_CIPHER) *sk;
1236                         static char *space="                          ";
1237
1238                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1239                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1240                         BIO_puts(io,"<pre>\n");
1241 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1242                         BIO_puts(io,"\n");
1243                         for (i=0; i<local_argc; i++)
1244                                 {
1245                                 BIO_puts(io,local_argv[i]);
1246                                 BIO_write(io," ",1);
1247                                 }
1248                         BIO_puts(io,"\n");
1249
1250                         /* The following is evil and should not really
1251                          * be done */
1252                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1253                         sk=SSL_get_ciphers(con);
1254                         j=sk_SSL_CIPHER_num(sk);
1255                         for (i=0; i<j; i++)
1256                                 {
1257                                 c=sk_SSL_CIPHER_value(sk,i);
1258                                 BIO_printf(io,"%-11s:%-25s",
1259                                         SSL_CIPHER_get_version(c),
1260                                         SSL_CIPHER_get_name(c));
1261                                 if ((((i+1)%2) == 0) && (i+1 != j))
1262                                         BIO_puts(io,"\n");
1263                                 }
1264                         BIO_puts(io,"\n");
1265                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1266                         if (p != NULL)
1267                                 {
1268                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1269                                 j=i=0;
1270                                 while (*p)
1271                                         {
1272                                         if (*p == ':')
1273                                                 {
1274                                                 BIO_write(io,space,26-j);
1275                                                 i++;
1276                                                 j=0;
1277                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1278                                                 }
1279                                         else
1280                                                 {
1281                                                 BIO_write(io,p,1);
1282                                                 j++;
1283                                                 }
1284                                         p++;
1285                                         }
1286                                 BIO_puts(io,"\n");
1287                                 }
1288                         BIO_printf(io,((con->hit)
1289                                 ?"---\nReused, "
1290                                 :"---\nNew, "));
1291                         c=SSL_get_current_cipher(con);
1292                         BIO_printf(io,"%s, Cipher is %s\n",
1293                                 SSL_CIPHER_get_version(c),
1294                                 SSL_CIPHER_get_name(c));
1295                         SSL_SESSION_print(io,SSL_get_session(con));
1296                         BIO_printf(io,"---\n");
1297                         print_stats(io,SSL_get_SSL_CTX(con));
1298                         BIO_printf(io,"---\n");
1299                         peer=SSL_get_peer_certificate(con);
1300                         if (peer != NULL)
1301                                 {
1302                                 BIO_printf(io,"Client certificate\n");
1303                                 X509_print(io,peer);
1304                                 PEM_write_bio_X509(io,peer);
1305                                 }
1306                         else
1307                                 BIO_puts(io,"no client certificate available\n");
1308                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1309                         break;
1310                         }
1311                 else if ((www == 2) && (strncmp("GET /",buf,5) == 0))
1312                         {
1313                         BIO *file;
1314                         char *p,*e;
1315                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1316
1317                         /* skip the '/' */
1318                         p= &(buf[5]);
1319                         dot=0;
1320                         for (e=p; *e != '\0'; e++)
1321                                 {
1322                                 if (e[0] == ' ') break;
1323                                 if (    (e[0] == '.') &&
1324                                         (strncmp(&(e[-1]),"/../",4) == 0))
1325                                         dot=1;
1326                                 }
1327
1328
1329                         if (*e == '\0')
1330                                 {
1331                                 BIO_puts(io,text);
1332                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1333                                 break;
1334                                 }
1335                         *e='\0';
1336
1337                         if (dot)
1338                                 {
1339                                 BIO_puts(io,text);
1340                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1341                                 break;
1342                                 }
1343
1344                         if (*p == '/')
1345                                 {
1346                                 BIO_puts(io,text);
1347                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1348                                 break;
1349                                 }
1350
1351                         /* append if a directory lookup */
1352                         if (e[-1] == '/')
1353                                 strcat(p,"index.html");
1354
1355                         /* if a directory, do the index thang */
1356                         if (stat(p,&st_buf) < 0)
1357                                 {
1358                                 BIO_puts(io,text);
1359                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1360                                 ERR_print_errors(io);
1361                                 break;
1362                                 }
1363                         if (S_ISDIR(st_buf.st_mode))
1364                                 {
1365                                 strcat(p,"/index.html");
1366                                 }
1367
1368                         if ((file=BIO_new_file(p,"r")) == NULL)
1369                                 {
1370                                 BIO_puts(io,text);
1371                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1372                                 ERR_print_errors(io);
1373                                 break;
1374                                 }
1375
1376                         if (!s_quiet)
1377                                 BIO_printf(bio_err,"FILE:%s\n",p);
1378
1379                         i=strlen(p);
1380                         if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1381                                 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1382                                 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1383                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1384                         else
1385                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1386                         /* send the file */
1387                         total_bytes=0;
1388                         for (;;)
1389                                 {
1390                                 i=BIO_read(file,buf,bufsize);
1391                                 if (i <= 0) break;
1392
1393 #ifdef RENEG
1394                                 total_bytes+=i;
1395                                 fprintf(stderr,"%d\n",i);
1396                                 if (total_bytes > 3*1024)
1397                                         {
1398                                         total_bytes=0;
1399                                         fprintf(stderr,"RENEGOTIATE\n");
1400                                         SSL_renegotiate(con);
1401                                         }
1402 #endif
1403
1404                                 for (j=0; j<i; )
1405                                         {
1406 #ifdef RENEG
1407 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1408 #endif
1409                                         k=BIO_write(io,&(buf[j]),i-j);
1410                                         if (k <= 0)
1411                                                 {
1412                                                 if (!BIO_should_retry(io))
1413                                                         goto write_error;
1414                                                 else
1415                                                         {
1416                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1417                                                         }
1418                                                 }
1419                                         else
1420                                                 {
1421                                                 j+=k;
1422                                                 }
1423                                         }
1424                                 }
1425 write_error:
1426                         BIO_free(file);
1427                         break;
1428                         }
1429                 }
1430
1431         for (;;)
1432                 {
1433                 i=(int)BIO_flush(io);
1434                 if (i <= 0)
1435                         {
1436                         if (!BIO_should_retry(io))
1437                                 break;
1438                         }
1439                 else
1440                         break;
1441                 }
1442 end:
1443 #if 1
1444         /* make sure we re-use sessions */
1445         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1446 #else
1447         /* This kills performace */
1448 /*      SSL_shutdown(con); A shutdown gets sent in the
1449  *      BIO_free_all(io) procession */
1450 #endif
1451
1452 err:
1453
1454         if (ret >= 0)
1455                 BIO_printf(bio_s_out,"ACCEPT\n");
1456
1457         if (buf != NULL) Free(buf);
1458         if (io != NULL) BIO_free_all(io);
1459 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1460         return(ret);
1461         }
1462
1463 #ifndef NO_RSA
1464 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1465         {
1466         static RSA *rsa_tmp=NULL;
1467
1468         if (rsa_tmp == NULL)
1469                 {
1470                 if (!s_quiet)
1471                         {
1472                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1473                         (void)BIO_flush(bio_err);
1474                         }
1475                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1476                 if (!s_quiet)
1477                         {
1478                         BIO_printf(bio_err,"\n");
1479                         (void)BIO_flush(bio_err);
1480                         }
1481                 }
1482         return(rsa_tmp);
1483         }
1484 #endif