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 <openssl/engine.h>
  87 #include "s_apps.h"
  88
  89 #ifdef WINDOWS
  90 #include <conio.h>
  91 #endif
  92
  93 #if (defined(VMS) && __VMS_VER < 70000000)
  94 /* FIONBIO used as a switch to enable ioctl, and that isn't in VMS < 7.0 */
  95 #undef FIONBIO
  96 #endif
  97
  98 #ifndef NO_RSA
  99 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength);
 100 #endif
 101 static int sv_body(char *hostname, int s, unsigned char *context);
 102 static int www_body(char *hostname, int s, unsigned char *context);
 103 static void close_accept_socket(void );
 104 static void sv_usage(void);
 105 static int init_ssl_connection(SSL *s);
 106 static void print_stats(BIO *bp,SSL_CTX *ctx);
 107 #ifndef NO_DH
 108 static DH *load_dh_param(char *dhfile);
 109 static DH *get_dh512(void);
 110 #endif
 111 #ifdef MONOLITH
 112 static void s_server_init(void);
 113 #endif
 114
 115 #ifndef S_ISDIR
 116 # if defined(_S_IFMT) && defined(_S_IFDIR)
 117 #  define S_ISDIR(a)    (((a) & _S_IFMT) == _S_IFDIR)
 118 # else
 119 #  define S_ISDIR(a)    (((a) & S_IFMT) == S_IFDIR)
 120 # endif
 121 #endif
 122
 123 #ifndef NO_DH
 124 static unsigned char dh512_p[]={
 125         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 126         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 127         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 128         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 129         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 130         0x47,0x74,0xE8,0x33,
 131         };
 132 static unsigned char dh512_g[]={
 133         0x02,
 134         };
 135
 136 static DH *get_dh512(void)
 137         {
 138         DH *dh=NULL;
 139
 140         if ((dh=DH_new()) == NULL) return(NULL);
 141         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 142         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 143         if ((dh->p == NULL) || (dh->g == NULL))
 144                 return(NULL);
 145         return(dh);
 146         }
 147 #endif
 148
 149 /* static int load_CA(SSL_CTX *ctx, char *file);*/
 150
 151 #undef BUFSIZZ
 152 #define BUFSIZZ 16*1024
 153 static int bufsize=BUFSIZZ;
 154 static int accept_socket= -1;
 155
 156 #define TEST_CERT       "server.pem"
 157 #undef PROG
 158 #define PROG            s_server_main
 159
 160 extern int verify_depth;
 161
 162 static char *cipher=NULL;
 163 static int s_server_verify=SSL_VERIFY_NONE;
 164 static int s_server_session_id_context = 1; /* anything will do */
 165 static char *s_cert_file=TEST_CERT,*s_key_file=NULL;
 166 static char *s_dcert_file=NULL,*s_dkey_file=NULL;
 167 #ifdef FIONBIO
 168 static int s_nbio=0;
 169 #endif
 170 static int s_nbio_test=0;
 171 int s_crlf=0;
 172 static SSL_CTX *ctx=NULL;
 173 static int www=0;
 174
 175 static BIO *bio_s_out=NULL;
 176 static int s_debug=0;
 177 static int s_quiet=0;
 178
 179 static int hack=0;
 180 static char *engine_id=NULL;
 181
 182 #ifdef MONOLITH
 183 static void s_server_init(void)
 184         {
 185         accept_socket=-1;
 186         cipher=NULL;
 187         s_server_verify=SSL_VERIFY_NONE;
 188         s_dcert_file=NULL;
 189         s_dkey_file=NULL;
 190         s_cert_file=TEST_CERT;
 191         s_key_file=NULL;
 192 #ifdef FIONBIO
 193         s_nbio=0;
 194 #endif
 195         s_nbio_test=0;
 196         ctx=NULL;
 197         www=0;
 198
 199         bio_s_out=NULL;
 200         s_debug=0;
 201         s_quiet=0;
 202         hack=0;
 203         engine_id=NULL;
 204         }
 205 #endif
 206
 207 static void sv_usage(void)
 208         {
 209         BIO_printf(bio_err,"usage: s_server [args ...]\n");
 210         BIO_printf(bio_err,"\n");
 211         BIO_printf(bio_err," -accept arg   - port to accept on (default is %d)\n",PORT);
 212         BIO_printf(bio_err," -context arg  - set session ID context\n");
 213         BIO_printf(bio_err," -verify arg   - turn on peer certificate verification\n");
 214         BIO_printf(bio_err," -Verify arg   - turn on peer certificate verification, must have a cert.\n");
 215         BIO_printf(bio_err," -cert arg     - certificate file to use, PEM format assumed\n");
 216         BIO_printf(bio_err,"                 (default is %s)\n",TEST_CERT);
 217         BIO_printf(bio_err," -key arg      - Private Key file to use, PEM format assumed, in cert file if\n");
 218         BIO_printf(bio_err,"                 not specified (default is %s)\n",TEST_CERT);
 219         BIO_printf(bio_err," -dcert arg    - second certificate file to use (usually for DSA)\n");
 220         BIO_printf(bio_err," -dkey arg     - second private key file to use (usually for DSA)\n");
 221         BIO_printf(bio_err," -dhparam arg  - DH parameter file to use, in cert file if not specified\n");
 222         BIO_printf(bio_err,"                 or a default set of parameters is used\n");
 223 #ifdef FIONBIO
 224         BIO_printf(bio_err," -nbio         - Run with non-blocking IO\n");
 225 #endif
 226         BIO_printf(bio_err," -nbio_test    - test with the non-blocking test bio\n");
 227         BIO_printf(bio_err," -crlf         - convert LF from terminal into CRLF\n");
 228         BIO_printf(bio_err," -debug        - Print more output\n");
 229         BIO_printf(bio_err," -state        - Print the SSL states\n");
 230         BIO_printf(bio_err," -CApath arg   - PEM format directory of CA's\n");
 231         BIO_printf(bio_err," -CAfile arg   - PEM format file of CA's\n");
 232         BIO_printf(bio_err," -nocert       - Don't use any certificates (Anon-DH)\n");
 233         BIO_printf(bio_err," -cipher arg   - play with 'openssl ciphers' to see what goes here\n");
 234         BIO_printf(bio_err," -quiet        - No server output\n");
 235         BIO_printf(bio_err," -no_tmp_rsa   - Do not generate a tmp RSA key\n");
 236         BIO_printf(bio_err," -ssl2         - Just talk SSLv2\n");
 237         BIO_printf(bio_err," -ssl3         - Just talk SSLv3\n");
 238         BIO_printf(bio_err," -tls1         - Just talk TLSv1\n");
 239         BIO_printf(bio_err," -no_ssl2      - Just disable SSLv2\n");
 240         BIO_printf(bio_err," -no_ssl3      - Just disable SSLv3\n");
 241         BIO_printf(bio_err," -no_tls1      - Just disable TLSv1\n");
 242 #ifndef NO_DH
 243         BIO_printf(bio_err," -no_dhe       - Disable ephemeral DH\n");
 244 #endif
 245         BIO_printf(bio_err," -bugs         - Turn on SSL bug compatibility\n");
 246         BIO_printf(bio_err," -www          - Respond to a 'GET /' with a status page\n");
 247         BIO_printf(bio_err," -WWW          - Respond to a 'GET /<path> HTTP/1.0' with file ./<path>\n");
 248         BIO_printf(bio_err," -engine id    - Initialise and use the specified engine\n");
 249         }
 250
 251 static int local_argc=0;
 252 static char **local_argv;
 253
 254 #ifdef CHARSET_EBCDIC
 255 static int ebcdic_new(BIO *bi);
 256 static int ebcdic_free(BIO *a);
 257 static int ebcdic_read(BIO *b, char *out, int outl);
 258 static int ebcdic_write(BIO *b, char *in, int inl);
 259 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr);
 260 static int ebcdic_gets(BIO *bp, char *buf, int size);
 261 static int ebcdic_puts(BIO *bp, char *str);
 262
 263 #define BIO_TYPE_EBCDIC_FILTER  (18|0x0200)
 264 static BIO_METHOD methods_ebcdic=
 265         {
 266         BIO_TYPE_EBCDIC_FILTER,
 267         "EBCDIC/ASCII filter",
 268         ebcdic_write,
 269         ebcdic_read,
 270         ebcdic_puts,
 271         ebcdic_gets,
 272         ebcdic_ctrl,
 273         ebcdic_new,
 274         ebcdic_free,
 275         };
 276
 277 typedef struct
 278 {
 279         size_t  alloced;
 280         char    buff[1];
 281 } EBCDIC_OUTBUFF;
 282
 283 BIO_METHOD *BIO_f_ebcdic_filter()
 284 {
 285         return(&methods_ebcdic);
 286 }
 287
 288 static int ebcdic_new(BIO *bi)
 289 {
 290         EBCDIC_OUTBUFF *wbuf;
 291
 292         wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
 293         wbuf->alloced = 1024;
 294         wbuf->buff[0] = '\0';
 295
 296         bi->ptr=(char *)wbuf;
 297         bi->init=1;
 298         bi->flags=0;
 299         return(1);
 300 }
 301
 302 static int ebcdic_free(BIO *a)
 303 {
 304         if (a == NULL) return(0);
 305         if (a->ptr != NULL)
 306                 OPENSSL_free(a->ptr);
 307         a->ptr=NULL;
 308         a->init=0;
 309         a->flags=0;
 310         return(1);
 311 }
 312
 313 static int ebcdic_read(BIO *b, char *out, int outl)
 314 {
 315         int ret=0;
 316
 317         if (out == NULL || outl == 0) return(0);
 318         if (b->next_bio == NULL) return(0);
 319
 320         ret=BIO_read(b->next_bio,out,outl);
 321         if (ret > 0)
 322                 ascii2ebcdic(out,out,ret);
 323         return(ret);
 324 }
 325
 326 static int ebcdic_write(BIO *b, char *in, int inl)
 327 {
 328         EBCDIC_OUTBUFF *wbuf;
 329         int ret=0;
 330         int num;
 331         unsigned char n;
 332
 333         if ((in == NULL) || (inl <= 0)) return(0);
 334         if (b->next_bio == NULL) return(0);
 335
 336         wbuf=(EBCDIC_OUTBUFF *)b->ptr;
 337
 338         if (inl > (num = wbuf->alloced))
 339         {
 340                 num = num + num;  /* double the size */
 341                 if (num < inl)
 342                         num = inl;
 343                 OPENSSL_free(wbuf);
 344                 wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
 345
 346                 wbuf->alloced = num;
 347                 wbuf->buff[0] = '\0';
 348
 349                 b->ptr=(char *)wbuf;
 350         }
 351
 352         ebcdic2ascii(wbuf->buff, in, inl);
 353
 354         ret=BIO_write(b->next_bio, wbuf->buff, inl);
 355
 356         return(ret);
 357 }
 358
 359 static long ebcdic_ctrl(BIO *b, int cmd, long num, char *ptr)
 360 {
 361         long ret;
 362
 363         if (b->next_bio == NULL) return(0);
 364         switch (cmd)
 365         {
 366         case BIO_CTRL_DUP:
 367                 ret=0L;
 368                 break;
 369         default:
 370                 ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
 371                 break;
 372         }
 373         return(ret);
 374 }
 375
 376 static int ebcdic_gets(BIO *bp, char *buf, int size)
 377 {
 378         int i, ret;
 379         if (bp->next_bio == NULL) return(0);
 380 /*      return(BIO_gets(bp->next_bio,buf,size));*/
 381         for (i=0; i<size-1; ++i)
 382         {
 383                 ret = ebcdic_read(bp,&buf[i],1);
 384                 if (ret <= 0)
 385                         break;
 386                 else if (buf[i] == '\n')
 387                 {
 388                         ++i;
 389                         break;
 390                 }
 391         }
 392         if (i < size)
 393                 buf[i] = '\0';
 394         return (ret < 0 && i == 0) ? ret : i;
 395 }
 396
 397 static int ebcdic_puts(BIO *bp, char *str)
 398 {
 399         if (bp->next_bio == NULL) return(0);
 400         return ebcdic_write(bp, str, strlen(str));
 401 }
 402 #endif
 403
 404 int MAIN(int, char **);
 405
 406 int MAIN(int argc, char *argv[])
 407         {
 408         short port=PORT;
 409         char *CApath=NULL,*CAfile=NULL;
 410         char *context = NULL;
 411         char *dhfile = NULL;
 412         int badop=0,bugs=0;
 413         int ret=1;
 414         int off=0;
 415         int no_tmp_rsa=0,no_dhe=0,nocert=0;
 416         int state=0;
 417         SSL_METHOD *meth=NULL;
 418         ENGINE *e=NULL;
 419
 420 #if !defined(NO_SSL2) && !defined(NO_SSL3)
 421         meth=SSLv23_server_method();
 422 #elif !defined(NO_SSL3)
 423         meth=SSLv3_server_method();
 424 #elif !defined(NO_SSL2)
 425         meth=SSLv2_server_method();
 426 #endif
 427
 428         local_argc=argc;
 429         local_argv=argv;
 430
 431         apps_startup();
 432 #ifdef MONOLITH
 433         s_server_init();
 434 #endif
 435
 436         if (bio_err == NULL)
 437                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 438
 439         verify_depth=0;
 440 #ifdef FIONBIO
 441         s_nbio=0;
 442 #endif
 443         s_nbio_test=0;
 444
 445         argc--;
 446         argv++;
 447
 448         while (argc >= 1)
 449                 {
 450                 if      ((strcmp(*argv,"-port") == 0) ||
 451                          (strcmp(*argv,"-accept") == 0))
 452                         {
 453                         if (--argc < 1) goto bad;
 454                         if (!extract_port(*(++argv),&port))
 455                                 goto bad;
 456                         }
 457                 else if (strcmp(*argv,"-verify") == 0)
 458                         {
 459                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE;
 460                         if (--argc < 1) goto bad;
 461                         verify_depth=atoi(*(++argv));
 462                         BIO_printf(bio_err,"verify depth is %d\n",verify_depth);
 463                         }
 464                 else if (strcmp(*argv,"-Verify") == 0)
 465                         {
 466                         s_server_verify=SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT|
 467                                 SSL_VERIFY_CLIENT_ONCE;
 468                         if (--argc < 1) goto bad;
 469                         verify_depth=atoi(*(++argv));
 470                         BIO_printf(bio_err,"verify depth is %d, must return a certificate\n",verify_depth);
 471                         }
 472                 else if (strcmp(*argv,"-context") == 0)
 473                         {
 474                         if (--argc < 1) goto bad;
 475                         context= *(++argv);
 476                         }
 477                 else if (strcmp(*argv,"-cert") == 0)
 478                         {
 479                         if (--argc < 1) goto bad;
 480                         s_cert_file= *(++argv);
 481                         }
 482                 else if (strcmp(*argv,"-key") == 0)
 483                         {
 484                         if (--argc < 1) goto bad;
 485                         s_key_file= *(++argv);
 486                         }
 487                 else if (strcmp(*argv,"-dhparam") == 0)
 488                         {
 489                         if (--argc < 1) goto bad;
 490                         dhfile = *(++argv);
 491                         }
 492                 else if (strcmp(*argv,"-dcert") == 0)
 493                         {
 494                         if (--argc < 1) goto bad;
 495                         s_dcert_file= *(++argv);
 496                         }
 497                 else if (strcmp(*argv,"-dkey") == 0)
 498                         {
 499                         if (--argc < 1) goto bad;
 500                         s_dkey_file= *(++argv);
 501                         }
 502                 else if (strcmp(*argv,"-nocert") == 0)
 503                         {
 504                         nocert=1;
 505                         }
 506                 else if (strcmp(*argv,"-CApath") == 0)
 507                         {
 508                         if (--argc < 1) goto bad;
 509                         CApath= *(++argv);
 510                         }
 511                 else if (strcmp(*argv,"-cipher") == 0)
 512                         {
 513                         if (--argc < 1) goto bad;
 514                         cipher= *(++argv);
 515                         }
 516                 else if (strcmp(*argv,"-CAfile") == 0)
 517                         {
 518                         if (--argc < 1) goto bad;
 519                         CAfile= *(++argv);
 520                         }
 521 #ifdef FIONBIO
 522                 else if (strcmp(*argv,"-nbio") == 0)
 523                         { s_nbio=1; }
 524 #endif
 525                 else if (strcmp(*argv,"-nbio_test") == 0)
 526                         {
 527 #ifdef FIONBIO
 528                         s_nbio=1;
 529 #endif
 530                         s_nbio_test=1;
 531                         }
 532                 else if (strcmp(*argv,"-debug") == 0)
 533                         { s_debug=1; }
 534                 else if (strcmp(*argv,"-hack") == 0)
 535                         { hack=1; }
 536                 else if (strcmp(*argv,"-state") == 0)
 537                         { state=1; }
 538                 else if (strcmp(*argv,"-crlf") == 0)
 539                         { s_crlf=1; }
 540                 else if (strcmp(*argv,"-quiet") == 0)
 541                         { s_quiet=1; }
 542                 else if (strcmp(*argv,"-bugs") == 0)
 543                         { bugs=1; }
 544                 else if (strcmp(*argv,"-no_tmp_rsa") == 0)
 545                         { no_tmp_rsa=1; }
 546                 else if (strcmp(*argv,"-no_dhe") == 0)
 547                         { no_dhe=1; }
 548                 else if (strcmp(*argv,"-www") == 0)
 549                         { www=1; }
 550                 else if (strcmp(*argv,"-WWW") == 0)
 551                         { www=2; }
 552                 else if (strcmp(*argv,"-no_ssl2") == 0)
 553                         { off|=SSL_OP_NO_SSLv2; }
 554                 else if (strcmp(*argv,"-no_ssl3") == 0)
 555                         { off|=SSL_OP_NO_SSLv3; }
 556                 else if (strcmp(*argv,"-no_tls1") == 0)
 557                         { off|=SSL_OP_NO_TLSv1; }
 558 #ifndef NO_SSL2
 559                 else if (strcmp(*argv,"-ssl2") == 0)
 560                         { meth=SSLv2_server_method(); }
 561 #endif
 562 #ifndef NO_SSL3
 563                 else if (strcmp(*argv,"-ssl3") == 0)
 564                         { meth=SSLv3_server_method(); }
 565 #endif
 566 #ifndef NO_TLS1
 567                 else if (strcmp(*argv,"-tls1") == 0)
 568                         { meth=TLSv1_server_method(); }
 569 #endif
 570                 else if (strcmp(*argv,"-engine") == 0)
 571                         {
 572                         if (--argc < 1) goto bad;
 573                         engine_id= *(++argv);
 574                         }
 575                 else
 576                         {
 577                         BIO_printf(bio_err,"unknown option %s\n",*argv);
 578                         badop=1;
 579                         break;
 580                         }
 581                 argc--;
 582                 argv++;
 583                 }
 584         if (badop)
 585                 {
 586 bad:
 587                 sv_usage();
 588                 goto end;
 589                 }
 590
 591         app_RAND_load_file(NULL, bio_err, 0);
 592
 593         if (bio_s_out == NULL)
 594                 {
 595                 if (s_quiet && !s_debug)
 596                         {
 597                         bio_s_out=BIO_new(BIO_s_null());
 598                         }
 599                 else
 600                         {
 601                         if (bio_s_out == NULL)
 602                                 bio_s_out=BIO_new_fp(stdout,BIO_NOCLOSE);
 603                         }
 604                 }
 605
 606 #if !defined(NO_RSA) || !defined(NO_DSA)
 607         if (nocert)
 608 #endif
 609                 {
 610                 s_cert_file=NULL;
 611                 s_key_file=NULL;
 612                 s_dcert_file=NULL;
 613                 s_dkey_file=NULL;
 614                 }
 615
 616         SSL_load_error_strings();
 617         OpenSSL_add_ssl_algorithms();
 618
 619         if (engine_id != NULL)
 620                 {
 621                 if((e = ENGINE_by_id(engine_id)) == NULL)
 622                         {
 623                         BIO_printf(bio_err,"invalid engine\n");
 624                         ERR_print_errors(bio_err);
 625                         goto end;
 626                         }
 627                 if (s_debug)
 628                         {
 629                         ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM,
 630                                 0, bio_err, 0);
 631                         }
 632                 if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
 633                         {
 634                         BIO_printf(bio_err,"can't use that engine\n");
 635                         ERR_print_errors(bio_err);
 636                         goto end;
 637                         }
 638                 BIO_printf(bio_err,"engine \"%s\" set.\n", engine_id);
 639                 ENGINE_free(e);
 640                 }
 641
 642         ctx=SSL_CTX_new(meth);
 643         if (ctx == NULL)
 644                 {
 645                 ERR_print_errors(bio_err);
 646                 goto end;
 647                 }
 648
 649         SSL_CTX_set_quiet_shutdown(ctx,1);
 650         if (bugs) SSL_CTX_set_options(ctx,SSL_OP_ALL);
 651         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG);
 652         SSL_CTX_set_options(ctx,off);
 653         if (hack) SSL_CTX_set_options(ctx,SSL_OP_NON_EXPORT_FIRST);
 654
 655         if (state) SSL_CTX_set_info_callback(ctx,apps_ssl_info_callback);
 656
 657         SSL_CTX_sess_set_cache_size(ctx,128);
 658
 659 #if 0
 660         if (cipher == NULL) cipher=getenv("SSL_CIPHER");
 661 #endif
 662
 663 #if 0
 664         if (s_cert_file == NULL)
 665                 {
 666                 BIO_printf(bio_err,"You must specify a certificate file for the server to use\n");
 667                 goto end;
 668                 }
 669 #endif
 670
 671         if ((!SSL_CTX_load_verify_locations(ctx,CAfile,CApath)) ||
 672                 (!SSL_CTX_set_default_verify_paths(ctx)))
 673                 {
 674                 /* BIO_printf(bio_err,"X509_load_verify_locations\n"); */
 675                 ERR_print_errors(bio_err);
 676                 /* goto end; */
 677                 }
 678
 679 #ifndef NO_DH
 680         if (!no_dhe)
 681                 {
 682                 DH *dh=NULL;
 683
 684                 if (dhfile)
 685                         dh = load_dh_param(dhfile);
 686                 else if (s_cert_file)
 687                         dh = load_dh_param(s_cert_file);
 688
 689                 if (dh != NULL)
 690                         {
 691                         BIO_printf(bio_s_out,"Setting temp DH parameters\n");
 692                         }
 693                 else
 694                         {
 695                         BIO_printf(bio_s_out,"Using default temp DH parameters\n");
 696                         dh=get_dh512();
 697                         }
 698                 (void)BIO_flush(bio_s_out);
 699
 700                 SSL_CTX_set_tmp_dh(ctx,dh);
 701                 DH_free(dh);
 702                 }
 703 #endif
 704
 705         if (!set_cert_stuff(ctx,s_cert_file,s_key_file))
 706                 goto end;
 707         if (s_dcert_file != NULL)
 708                 {
 709                 if (!set_cert_stuff(ctx,s_dcert_file,s_dkey_file))
 710                         goto end;
 711                 }
 712
 713 #ifndef NO_RSA
 714 #if 1
 715         SSL_CTX_set_tmp_rsa_callback(ctx,tmp_rsa_cb);
 716 #else
 717         if (!no_tmp_rsa && SSL_CTX_need_tmp_RSA(ctx))
 718                 {
 719                 RSA *rsa;
 720
 721                 BIO_printf(bio_s_out,"Generating temp (512 bit) RSA key...");
 722                 BIO_flush(bio_s_out);
 723
 724                 rsa=RSA_generate_key(512,RSA_F4,NULL);
 725
 726                 if (!SSL_CTX_set_tmp_rsa(ctx,rsa))
 727                         {
 728                         ERR_print_errors(bio_err);
 729                         goto end;
 730                         }
 731                 RSA_free(rsa);
 732                 BIO_printf(bio_s_out,"\n");
 733                 }
 734 #endif
 735 #endif
 736
 737         if (cipher != NULL)
 738                 if(!SSL_CTX_set_cipher_list(ctx,cipher)) {
 739                 BIO_printf(bio_err,"error setting cipher list\n");
 740                 ERR_print_errors(bio_err);
 741                 goto end;
 742         }
 743         SSL_CTX_set_verify(ctx,s_server_verify,verify_callback);
 744         SSL_CTX_set_session_id_context(ctx,(void*)&s_server_session_id_context,
 745                 sizeof s_server_session_id_context);
 746
 747         if (CAfile != NULL)
 748             SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
 749
 750         BIO_printf(bio_s_out,"ACCEPT\n");
 751         if (www)
 752                 do_server(port,&accept_socket,www_body, context);
 753         else
 754                 do_server(port,&accept_socket,sv_body, context);
 755         print_stats(bio_s_out,ctx);
 756         ret=0;
 757 end:
 758         if (ctx != NULL) SSL_CTX_free(ctx);
 759         if (bio_s_out != NULL)
 760                 {
 761                 BIO_free(bio_s_out);
 762                 bio_s_out=NULL;
 763                 }
 764         EXIT(ret);
 765         }
 766
 767 static void print_stats(BIO *bio, SSL_CTX *ssl_ctx)
 768         {
 769         BIO_printf(bio,"%4ld items in the session cache\n",
 770                 SSL_CTX_sess_number(ssl_ctx));
 771         BIO_printf(bio,"%4d client connects (SSL_connect())\n",
 772                 SSL_CTX_sess_connect(ssl_ctx));
 773         BIO_printf(bio,"%4d client renegotiates (SSL_connect())\n",
 774                 SSL_CTX_sess_connect_renegotiate(ssl_ctx));
 775         BIO_printf(bio,"%4d client connects that finished\n",
 776                 SSL_CTX_sess_connect_good(ssl_ctx));
 777         BIO_printf(bio,"%4d server accepts (SSL_accept())\n",
 778                 SSL_CTX_sess_accept(ssl_ctx));
 779         BIO_printf(bio,"%4d server renegotiates (SSL_accept())\n",
 780                 SSL_CTX_sess_accept_renegotiate(ssl_ctx));
 781         BIO_printf(bio,"%4d server accepts that finished\n",
 782                 SSL_CTX_sess_accept_good(ssl_ctx));
 783         BIO_printf(bio,"%4d session cache hits\n",SSL_CTX_sess_hits(ssl_ctx));
 784         BIO_printf(bio,"%4d session cache misses\n",SSL_CTX_sess_misses(ssl_ctx));
 785         BIO_printf(bio,"%4d session cache timeouts\n",SSL_CTX_sess_timeouts(ssl_ctx));
 786         BIO_printf(bio,"%4d callback cache hits\n",SSL_CTX_sess_cb_hits(ssl_ctx));
 787         BIO_printf(bio,"%4d cache full overflows (%d allowed)\n",
 788                 SSL_CTX_sess_cache_full(ssl_ctx),
 789                 SSL_CTX_sess_get_cache_size(ssl_ctx));
 790         }
 791
 792 static int sv_body(char *hostname, int s, unsigned char *context)
 793         {
 794         char *buf=NULL;
 795         fd_set readfds;
 796         int ret=1,width;
 797         int k,i;
 798         unsigned long l;
 799         SSL *con=NULL;
 800         BIO *sbio;
 801 #ifdef WINDOWS
 802         struct timeval tv;
 803 #endif
 804
 805         if ((buf=OPENSSL_malloc(bufsize)) == NULL)
 806                 {
 807                 BIO_printf(bio_err,"out of memory\n");
 808                 goto err;
 809                 }
 810 #ifdef FIONBIO
 811         if (s_nbio)
 812                 {
 813                 unsigned long sl=1;
 814
 815                 if (!s_quiet)
 816                         BIO_printf(bio_err,"turning on non blocking io\n");
 817                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
 818                         ERR_print_errors(bio_err);
 819                 }
 820 #endif
 821
 822         if (con == NULL) {
 823                 con=SSL_new(ctx);
 824 #ifndef NO_KRB5
 825                 if ((con->kssl_ctx = kssl_ctx_new()) != NULL)
 826                         {
 827                         kssl_ctx_setstring(con->kssl_ctx, KSSL_SERVICE, KRB5SVC);
 828                         kssl_ctx_setstring(con->kssl_ctx, KSSL_KEYTAB, KRB5KEYTAB);
 829                         }
 830 #endif  /* NO_KRB5 */
 831                 if(context)
 832                       SSL_set_session_id_context(con, context,
 833                                                  strlen((char *)context));
 834         }
 835         SSL_clear(con);
 836
 837         sbio=BIO_new_socket(s,BIO_NOCLOSE);
 838         if (s_nbio_test)
 839                 {
 840                 BIO *test;
 841
 842                 test=BIO_new(BIO_f_nbio_test());
 843                 sbio=BIO_push(test,sbio);
 844                 }
 845         SSL_set_bio(con,sbio,sbio);
 846         SSL_set_accept_state(con);
 847         /* SSL_set_fd(con,s); */
 848
 849         if (s_debug)
 850                 {
 851                 con->debug=1;
 852                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
 853                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
 854                 }
 855
 856         width=s+1;
 857         for (;;)
 858                 {
 859                 int read_from_terminal;
 860                 int read_from_sslcon;
 861
 862                 read_from_terminal = 0;
 863                 read_from_sslcon = SSL_pending(con);
 864
 865                 if (!read_from_sslcon)
 866                         {
 867                         FD_ZERO(&readfds);
 868 #ifndef WINDOWS
 869                         FD_SET(fileno(stdin),&readfds);
 870 #endif
 871                         FD_SET(s,&readfds);
 872                         /* Note: under VMS with SOCKETSHR the second parameter is
 873                          * currently of type (int *) whereas under other systems
 874                          * it is (void *) if you don't have a cast it will choke
 875                          * the compiler: if you do have a cast then you can either
 876                          * go for (int *) or (void *).
 877                          */
 878 #ifdef WINDOWS
 879                         /* Under Windows we can't select on stdin: only
 880                          * on sockets. As a workaround we timeout the select every
 881                          * second and check for any keypress. In a proper Windows
 882                          * application we wouldn't do this because it is inefficient.
 883                          */
 884                         tv.tv_sec = 1;
 885                         tv.tv_usec = 0;
 886                         i=select(width,(void *)&readfds,NULL,NULL,&tv);
 887                         if((i < 0) || (!i && !_kbhit() ) )continue;
 888                         if(_kbhit())
 889                                 read_from_terminal = 1;
 890 #else
 891                         i=select(width,(void *)&readfds,NULL,NULL,NULL);
 892                         if (i <= 0) continue;
 893                         if (FD_ISSET(fileno(stdin),&readfds))
 894                                 read_from_terminal = 1;
 895 #endif
 896                         if (FD_ISSET(s,&readfds))
 897                                 read_from_sslcon = 1;
 898                         }
 899                 if (read_from_terminal)
 900                         {
 901                         if (s_crlf)
 902                                 {
 903                                 int j, lf_num;
 904
 905                                 i=read(fileno(stdin), buf, bufsize/2);
 906                                 lf_num = 0;
 907                                 /* both loops are skipped when i <= 0 */
 908                                 for (j = 0; j < i; j++)
 909                                         if (buf[j] == '\n')
 910                                                 lf_num++;
 911                                 for (j = i-1; j >= 0; j--)
 912                                         {
 913                                         buf[j+lf_num] = buf[j];
 914                                         if (buf[j] == '\n')
 915                                                 {
 916                                                 lf_num--;
 917                                                 i++;
 918                                                 buf[j+lf_num] = '\r';
 919                                                 }
 920                                         }
 921                                 assert(lf_num == 0);
 922                                 }
 923                         else
 924                                 i=read(fileno(stdin),buf,bufsize);
 925                         if (!s_quiet)
 926                                 {
 927                                 if ((i <= 0) || (buf[0] == 'Q'))
 928                                         {
 929                                         BIO_printf(bio_s_out,"DONE\n");
 930                                         SHUTDOWN(s);
 931                                         close_accept_socket();
 932                                         ret= -11;
 933                                         goto err;
 934                                         }
 935                                 if ((i <= 0) || (buf[0] == 'q'))
 936                                         {
 937                                         BIO_printf(bio_s_out,"DONE\n");
 938                                         SHUTDOWN(s);
 939         /*                              close_accept_socket();
 940                                         ret= -11;*/
 941                                         goto err;
 942                                         }
 943                                 if ((buf[0] == 'r') &&
 944                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 945                                         {
 946                                         SSL_renegotiate(con);
 947                                         i=SSL_do_handshake(con);
 948                                         printf("SSL_do_handshake -> %d\n",i);
 949                                         i=0; /*13; */
 950                                         continue;
 951                                         /* strcpy(buf,"server side RE-NEGOTIATE\n"); */
 952                                         }
 953                                 if ((buf[0] == 'R') &&
 954                                         ((buf[1] == '\n') || (buf[1] == '\r')))
 955                                         {
 956                                         SSL_set_verify(con,
 957                                                 SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,NULL);
 958                                         SSL_renegotiate(con);
 959                                         i=SSL_do_handshake(con);
 960                                         printf("SSL_do_handshake -> %d\n",i);
 961                                         i=0; /* 13; */
 962                                         continue;
 963                                         /* strcpy(buf,"server side RE-NEGOTIATE asking for client cert\n"); */
 964                                         }
 965                                 if (buf[0] == 'P')
 966                                         {
 967                                         static char *str="Lets print some clear text\n";
 968                                         BIO_write(SSL_get_wbio(con),str,strlen(str));
 969                                         }
 970                                 if (buf[0] == 'S')
 971                                         {
 972                                         print_stats(bio_s_out,SSL_get_SSL_CTX(con));
 973                                         }
 974                                 }
 975 #ifdef CHARSET_EBCDIC
 976                         ebcdic2ascii(buf,buf,i);
 977 #endif
 978                         l=k=0;
 979                         for (;;)
 980                                 {
 981                                 /* should do a select for the write */
 982 #ifdef RENEG
 983 { static count=0; if (++count == 100) { count=0; SSL_renegotiate(con); } }
 984 #endif
 985                                 k=SSL_write(con,&(buf[l]),(unsigned int)i);
 986                                 switch (SSL_get_error(con,k))
 987                                         {
 988                                 case SSL_ERROR_NONE:
 989                                         break;
 990                                 case SSL_ERROR_WANT_WRITE:
 991                                 case SSL_ERROR_WANT_READ:
 992                                 case SSL_ERROR_WANT_X509_LOOKUP:
 993                                         BIO_printf(bio_s_out,"Write BLOCK\n");
 994                                         break;
 995                                 case SSL_ERROR_SYSCALL:
 996                                 case SSL_ERROR_SSL:
 997                                         BIO_printf(bio_s_out,"ERROR\n");
 998                                         ERR_print_errors(bio_err);
 999                                         ret=1;
1000                                         goto err;
1001                                         /* break; */
1002                                 case SSL_ERROR_ZERO_RETURN:
1003                                         BIO_printf(bio_s_out,"DONE\n");
1004                                         ret=1;
1005                                         goto err;
1006                                         }
1007                                 l+=k;
1008                                 i-=k;
1009                                 if (i <= 0) break;
1010                                 }
1011                         }
1012                 if (read_from_sslcon)
1013                         {
1014                         if (!SSL_is_init_finished(con))
1015                                 {
1016                                 i=init_ssl_connection(con);
1017
1018                                 if (i < 0)
1019                                         {
1020                                         ret=0;
1021                                         goto err;
1022                                         }
1023                                 else if (i == 0)
1024                                         {
1025                                         ret=1;
1026                                         goto err;
1027                                         }
1028                                 }
1029                         else
1030                                 {
1031 again:
1032                                 i=SSL_read(con,(char *)buf,bufsize);
1033                                 switch (SSL_get_error(con,i))
1034                                         {
1035                                 case SSL_ERROR_NONE:
1036 #ifdef CHARSET_EBCDIC
1037                                         ascii2ebcdic(buf,buf,i);
1038 #endif
1039                                         write(fileno(stdout),buf,
1040                                                 (unsigned int)i);
1041                                         if (SSL_pending(con)) goto again;
1042                                         break;
1043                                 case SSL_ERROR_WANT_WRITE:
1044                                 case SSL_ERROR_WANT_READ:
1045                                 case SSL_ERROR_WANT_X509_LOOKUP:
1046                                         BIO_printf(bio_s_out,"Read BLOCK\n");
1047                                         break;
1048                                 case SSL_ERROR_SYSCALL:
1049                                 case SSL_ERROR_SSL:
1050                                         BIO_printf(bio_s_out,"ERROR\n");
1051                                         ERR_print_errors(bio_err);
1052                                         ret=1;
1053                                         goto err;
1054                                 case SSL_ERROR_ZERO_RETURN:
1055                                         BIO_printf(bio_s_out,"DONE\n");
1056                                         ret=1;
1057                                         goto err;
1058                                         }
1059                                 }
1060                         }
1061                 }
1062 err:
1063         BIO_printf(bio_s_out,"shutting down SSL\n");
1064 #if 1
1065         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1066 #else
1067         SSL_shutdown(con);
1068 #endif
1069         if (con != NULL) SSL_free(con);
1070         BIO_printf(bio_s_out,"CONNECTION CLOSED\n");
1071         if (buf != NULL)
1072                 {
1073                 memset(buf,0,bufsize);
1074                 OPENSSL_free(buf);
1075                 }
1076         if (ret >= 0)
1077                 BIO_printf(bio_s_out,"ACCEPT\n");
1078         return(ret);
1079         }
1080
1081 static void close_accept_socket(void)
1082         {
1083         BIO_printf(bio_err,"shutdown accept socket\n");
1084         if (accept_socket >= 0)
1085                 {
1086                 SHUTDOWN2(accept_socket);
1087                 }
1088         }
1089
1090 static int init_ssl_connection(SSL *con)
1091         {
1092         int i;
1093         const char *str;
1094         X509 *peer;
1095         long verify_error;
1096         MS_STATIC char buf[BUFSIZ];
1097
1098         if ((i=SSL_accept(con)) <= 0)
1099                 {
1100                 if (BIO_sock_should_retry(i))
1101                         {
1102                         BIO_printf(bio_s_out,"DELAY\n");
1103                         return(1);
1104                         }
1105
1106                 BIO_printf(bio_err,"ERROR\n");
1107                 verify_error=SSL_get_verify_result(con);
1108                 if (verify_error != X509_V_OK)
1109                         {
1110                         BIO_printf(bio_err,"verify error:%s\n",
1111                                 X509_verify_cert_error_string(verify_error));
1112                         }
1113                 else
1114                         ERR_print_errors(bio_err);
1115                 return(0);
1116                 }
1117
1118         PEM_write_bio_SSL_SESSION(bio_s_out,SSL_get_session(con));
1119
1120         peer=SSL_get_peer_certificate(con);
1121         if (peer != NULL)
1122                 {
1123                 BIO_printf(bio_s_out,"Client certificate\n");
1124                 PEM_write_bio_X509(bio_s_out,peer);
1125                 X509_NAME_oneline(X509_get_subject_name(peer),buf,BUFSIZ);
1126                 BIO_printf(bio_s_out,"subject=%s\n",buf);
1127                 X509_NAME_oneline(X509_get_issuer_name(peer),buf,BUFSIZ);
1128                 BIO_printf(bio_s_out,"issuer=%s\n",buf);
1129                 X509_free(peer);
1130                 }
1131
1132         if (SSL_get_shared_ciphers(con,buf,BUFSIZ) != NULL)
1133                 BIO_printf(bio_s_out,"Shared ciphers:%s\n",buf);
1134         str=SSL_CIPHER_get_name(SSL_get_current_cipher(con));
1135         BIO_printf(bio_s_out,"CIPHER is %s\n",(str != NULL)?str:"(NONE)");
1136         if (con->hit) BIO_printf(bio_s_out,"Reused session-id\n");
1137         if (SSL_ctrl(con,SSL_CTRL_GET_FLAGS,0,NULL) &
1138                 TLS1_FLAGS_TLS_PADDING_BUG)
1139                 BIO_printf(bio_s_out,"Peer has incorrect TLSv1 block padding\n");
1140
1141         return(1);
1142         }
1143
1144 #ifndef NO_DH
1145 static DH *load_dh_param(char *dhfile)
1146         {
1147         DH *ret=NULL;
1148         BIO *bio;
1149
1150         if ((bio=BIO_new_file(dhfile,"r")) == NULL)
1151                 goto err;
1152         ret=PEM_read_bio_DHparams(bio,NULL,NULL,NULL);
1153 err:
1154         if (bio != NULL) BIO_free(bio);
1155         return(ret);
1156         }
1157 #endif
1158
1159 #if 0
1160 static int load_CA(SSL_CTX *ctx, char *file)
1161         {
1162         FILE *in;
1163         X509 *x=NULL;
1164
1165         if ((in=fopen(file,"r")) == NULL)
1166                 return(0);
1167
1168         for (;;)
1169                 {
1170                 if (PEM_read_X509(in,&x,NULL) == NULL)
1171                         break;
1172                 SSL_CTX_add_client_CA(ctx,x);
1173                 }
1174         if (x != NULL) X509_free(x);
1175         fclose(in);
1176         return(1);
1177         }
1178 #endif
1179
1180 static int www_body(char *hostname, int s, unsigned char *context)
1181         {
1182         char *buf=NULL;
1183         int ret=1;
1184         int i,j,k,blank,dot;
1185         struct stat st_buf;
1186         SSL *con;
1187         SSL_CIPHER *c;
1188         BIO *io,*ssl_bio,*sbio;
1189         long total_bytes;
1190
1191         buf=OPENSSL_malloc(bufsize);
1192         if (buf == NULL) return(0);
1193         io=BIO_new(BIO_f_buffer());
1194         ssl_bio=BIO_new(BIO_f_ssl());
1195         if ((io == NULL) || (ssl_bio == NULL)) goto err;
1196
1197 #ifdef FIONBIO
1198         if (s_nbio)
1199                 {
1200                 unsigned long sl=1;
1201
1202                 if (!s_quiet)
1203                         BIO_printf(bio_err,"turning on non blocking io\n");
1204                 if (BIO_socket_ioctl(s,FIONBIO,&sl) < 0)
1205                         ERR_print_errors(bio_err);
1206                 }
1207 #endif
1208
1209         /* lets make the output buffer a reasonable size */
1210         if (!BIO_set_write_buffer_size(io,bufsize)) goto err;
1211
1212         if ((con=SSL_new(ctx)) == NULL) goto err;
1213         if(context) SSL_set_session_id_context(con, context,
1214                                                strlen((char *)context));
1215
1216         sbio=BIO_new_socket(s,BIO_NOCLOSE);
1217         if (s_nbio_test)
1218                 {
1219                 BIO *test;
1220
1221                 test=BIO_new(BIO_f_nbio_test());
1222                 sbio=BIO_push(test,sbio);
1223                 }
1224         SSL_set_bio(con,sbio,sbio);
1225         SSL_set_accept_state(con);
1226
1227         /* SSL_set_fd(con,s); */
1228         BIO_set_ssl(ssl_bio,con,BIO_CLOSE);
1229         BIO_push(io,ssl_bio);
1230 #ifdef CHARSET_EBCDIC
1231         io = BIO_push(BIO_new(BIO_f_ebcdic_filter()),io);
1232 #endif
1233
1234         if (s_debug)
1235                 {
1236                 con->debug=1;
1237                 BIO_set_callback(SSL_get_rbio(con),bio_dump_cb);
1238                 BIO_set_callback_arg(SSL_get_rbio(con),bio_s_out);
1239                 }
1240
1241         blank=0;
1242         for (;;)
1243                 {
1244                 if (hack)
1245                         {
1246                         i=SSL_accept(con);
1247
1248                         switch (SSL_get_error(con,i))
1249                                 {
1250                         case SSL_ERROR_NONE:
1251                                 break;
1252                         case SSL_ERROR_WANT_WRITE:
1253                         case SSL_ERROR_WANT_READ:
1254                         case SSL_ERROR_WANT_X509_LOOKUP:
1255                                 continue;
1256                         case SSL_ERROR_SYSCALL:
1257                         case SSL_ERROR_SSL:
1258                         case SSL_ERROR_ZERO_RETURN:
1259                                 ret=1;
1260                                 goto err;
1261                                 /* break; */
1262                                 }
1263
1264                         SSL_renegotiate(con);
1265                         SSL_write(con,NULL,0);
1266                         }
1267
1268                 i=BIO_gets(io,buf,bufsize-1);
1269                 if (i < 0) /* error */
1270                         {
1271                         if (!BIO_should_retry(io))
1272                                 {
1273                                 if (!s_quiet)
1274                                         ERR_print_errors(bio_err);
1275                                 goto err;
1276                                 }
1277                         else
1278                                 {
1279                                 BIO_printf(bio_s_out,"read R BLOCK\n");
1280 #ifndef MSDOS
1281                                 sleep(1);
1282 #endif
1283                                 continue;
1284                                 }
1285                         }
1286                 else if (i == 0) /* end of input */
1287                         {
1288                         ret=1;
1289                         goto end;
1290                         }
1291
1292                 /* else we have data */
1293                 if (    ((www == 1) && (strncmp("GET ",buf,4) == 0)) ||
1294                         ((www == 2) && (strncmp("GET /stats ",buf,10) == 0)))
1295                         {
1296                         char *p;
1297                         X509 *peer;
1298                         STACK_OF(SSL_CIPHER) *sk;
1299                         static char *space="                          ";
1300
1301                         BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1302                         BIO_puts(io,"<HTML><BODY BGCOLOR=\"#ffffff\">\n");
1303                         BIO_puts(io,"<pre>\n");
1304 /*                      BIO_puts(io,SSLeay_version(SSLEAY_VERSION));*/
1305                         BIO_puts(io,"\n");
1306                         for (i=0; i<local_argc; i++)
1307                                 {
1308                                 BIO_puts(io,local_argv[i]);
1309                                 BIO_write(io," ",1);
1310                                 }
1311                         BIO_puts(io,"\n");
1312
1313                         /* The following is evil and should not really
1314                          * be done */
1315                         BIO_printf(io,"Ciphers supported in s_server binary\n");
1316                         sk=SSL_get_ciphers(con);
1317                         j=sk_SSL_CIPHER_num(sk);
1318                         for (i=0; i<j; i++)
1319                                 {
1320                                 c=sk_SSL_CIPHER_value(sk,i);
1321                                 BIO_printf(io,"%-11s:%-25s",
1322                                         SSL_CIPHER_get_version(c),
1323                                         SSL_CIPHER_get_name(c));
1324                                 if ((((i+1)%2) == 0) && (i+1 != j))
1325                                         BIO_puts(io,"\n");
1326                                 }
1327                         BIO_puts(io,"\n");
1328                         p=SSL_get_shared_ciphers(con,buf,bufsize);
1329                         if (p != NULL)
1330                                 {
1331                                 BIO_printf(io,"---\nCiphers common between both SSL end points:\n");
1332                                 j=i=0;
1333                                 while (*p)
1334                                         {
1335                                         if (*p == ':')
1336                                                 {
1337                                                 BIO_write(io,space,26-j);
1338                                                 i++;
1339                                                 j=0;
1340                                                 BIO_write(io,((i%3)?" ":"\n"),1);
1341                                                 }
1342                                         else
1343                                                 {
1344                                                 BIO_write(io,p,1);
1345                                                 j++;
1346                                                 }
1347                                         p++;
1348                                         }
1349                                 BIO_puts(io,"\n");
1350                                 }
1351                         BIO_printf(io,((con->hit)
1352                                 ?"---\nReused, "
1353                                 :"---\nNew, "));
1354                         c=SSL_get_current_cipher(con);
1355                         BIO_printf(io,"%s, Cipher is %s\n",
1356                                 SSL_CIPHER_get_version(c),
1357                                 SSL_CIPHER_get_name(c));
1358                         SSL_SESSION_print(io,SSL_get_session(con));
1359                         BIO_printf(io,"---\n");
1360                         print_stats(io,SSL_get_SSL_CTX(con));
1361                         BIO_printf(io,"---\n");
1362                         peer=SSL_get_peer_certificate(con);
1363                         if (peer != NULL)
1364                                 {
1365                                 BIO_printf(io,"Client certificate\n");
1366                                 X509_print(io,peer);
1367                                 PEM_write_bio_X509(io,peer);
1368                                 }
1369                         else
1370                                 BIO_puts(io,"no client certificate available\n");
1371                         BIO_puts(io,"</BODY></HTML>\r\n\r\n");
1372                         break;
1373                         }
1374                 else if ((www == 2) && (strncmp("GET /",buf,5) == 0))
1375                         {
1376                         BIO *file;
1377                         char *p,*e;
1378                         static char *text="HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n";
1379
1380                         /* skip the '/' */
1381                         p= &(buf[5]);
1382                         dot=0;
1383                         for (e=p; *e != '\0'; e++)
1384                                 {
1385                                 if (e[0] == ' ') break;
1386                                 if (    (e[0] == '.') &&
1387                                         (strncmp(&(e[-1]),"/../",4) == 0))
1388                                         dot=1;
1389                                 }
1390
1391
1392                         if (*e == '\0')
1393                                 {
1394                                 BIO_puts(io,text);
1395                                 BIO_printf(io,"'%s' is an invalid file name\r\n",p);
1396                                 break;
1397                                 }
1398                         *e='\0';
1399
1400                         if (dot)
1401                                 {
1402                                 BIO_puts(io,text);
1403                                 BIO_printf(io,"'%s' contains '..' reference\r\n",p);
1404                                 break;
1405                                 }
1406
1407                         if (*p == '/')
1408                                 {
1409                                 BIO_puts(io,text);
1410                                 BIO_printf(io,"'%s' is an invalid path\r\n",p);
1411                                 break;
1412                                 }
1413
1414                         /* append if a directory lookup */
1415                         if (e[-1] == '/')
1416                                 strcat(p,"index.html");
1417
1418                         /* if a directory, do the index thang */
1419                         if (stat(p,&st_buf) < 0)
1420                                 {
1421                                 BIO_puts(io,text);
1422                                 BIO_printf(io,"Error accessing '%s'\r\n",p);
1423                                 ERR_print_errors(io);
1424                                 break;
1425                                 }
1426                         if (S_ISDIR(st_buf.st_mode))
1427                                 {
1428                                 strcat(p,"/index.html");
1429                                 }
1430
1431                         if ((file=BIO_new_file(p,"r")) == NULL)
1432                                 {
1433                                 BIO_puts(io,text);
1434                                 BIO_printf(io,"Error opening '%s'\r\n",p);
1435                                 ERR_print_errors(io);
1436                                 break;
1437                                 }
1438
1439                         if (!s_quiet)
1440                                 BIO_printf(bio_err,"FILE:%s\n",p);
1441
1442                         i=strlen(p);
1443                         if (    ((i > 5) && (strcmp(&(p[i-5]),".html") == 0)) ||
1444                                 ((i > 4) && (strcmp(&(p[i-4]),".php") == 0)) ||
1445                                 ((i > 4) && (strcmp(&(p[i-4]),".htm") == 0)))
1446                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n");
1447                         else
1448                                 BIO_puts(io,"HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n");
1449                         /* send the file */
1450                         total_bytes=0;
1451                         for (;;)
1452                                 {
1453                                 i=BIO_read(file,buf,bufsize);
1454                                 if (i <= 0) break;
1455
1456 #ifdef RENEG
1457                                 total_bytes+=i;
1458                                 fprintf(stderr,"%d\n",i);
1459                                 if (total_bytes > 3*1024)
1460                                         {
1461                                         total_bytes=0;
1462                                         fprintf(stderr,"RENEGOTIATE\n");
1463                                         SSL_renegotiate(con);
1464                                         }
1465 #endif
1466
1467                                 for (j=0; j<i; )
1468                                         {
1469 #ifdef RENEG
1470 { static count=0; if (++count == 13) { SSL_renegotiate(con); } }
1471 #endif
1472                                         k=BIO_write(io,&(buf[j]),i-j);
1473                                         if (k <= 0)
1474                                                 {
1475                                                 if (!BIO_should_retry(io))
1476                                                         goto write_error;
1477                                                 else
1478                                                         {
1479                                                         BIO_printf(bio_s_out,"rwrite W BLOCK\n");
1480                                                         }
1481                                                 }
1482                                         else
1483                                                 {
1484                                                 j+=k;
1485                                                 }
1486                                         }
1487                                 }
1488 write_error:
1489                         BIO_free(file);
1490                         break;
1491                         }
1492                 }
1493
1494         for (;;)
1495                 {
1496                 i=(int)BIO_flush(io);
1497                 if (i <= 0)
1498                         {
1499                         if (!BIO_should_retry(io))
1500                                 break;
1501                         }
1502                 else
1503                         break;
1504                 }
1505 end:
1506 #if 1
1507         /* make sure we re-use sessions */
1508         SSL_set_shutdown(con,SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
1509 #else
1510         /* This kills performance */
1511 /*      SSL_shutdown(con); A shutdown gets sent in the
1512  *      BIO_free_all(io) procession */
1513 #endif
1514
1515 err:
1516
1517         if (ret >= 0)
1518                 BIO_printf(bio_s_out,"ACCEPT\n");
1519
1520         if (buf != NULL) OPENSSL_free(buf);
1521         if (io != NULL) BIO_free_all(io);
1522 /*      if (ssl_bio != NULL) BIO_free(ssl_bio);*/
1523         return(ret);
1524         }
1525
1526 #ifndef NO_RSA
1527 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
1528         {
1529         static RSA *rsa_tmp=NULL;
1530
1531         if (rsa_tmp == NULL)
1532                 {
1533                 if (!s_quiet)
1534                         {
1535                         BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
1536                         (void)BIO_flush(bio_err);
1537                         }
1538                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
1539                 if (!s_quiet)
1540                         {
1541                         BIO_printf(bio_err,"\n");
1542                         (void)BIO_flush(bio_err);
1543                         }
1544                 }
1545         return(rsa_tmp);
1546         }
1547 #endif